IBM Laptop THINKPAD 385XD 2635 User Manual

S10L-9623-00  
IBM Mobile Systems  
ThinkPad 380XD (2635)  
ThinkPad 385XD (2635)  
Hardware Maintenance Manual  
May 1998  
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S10L-9623-00  
IBM Mobile Systems  
ThinkPad 380XD (2635)  
ThinkPad 385XD (2635)  
Hardware Maintenance Manual  
May 1998  
IBM  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Note  
Before using this information and the product it  
supports, be sure to read the general information  
under “Notices” on page 123.  
First Edition (May 1998)  
The following paragraph does not apply to the United  
Kingdom or any country where such provisions are  
inconsistent with local law:  
INTERNATIONAL BUSINESS MACHINES  
CORPORATION PROVIDES THIS PUBLICATION “AS IS”  
WITHOUT ANY WARRANTY OF ANY KIND, EITHER  
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED  
TO, THE LIMITED WARRANTIES OF  
MERCHANTABILITY OR FITNESS FOR A PARTICULAR  
PURPOSE. Some states do not allow disclaimer or  
express or implied warranties in certain transactions;  
therefore, this statement may not apply to you.  
This publication could include technical inaccuracies or  
typographical errors. Changes are periodically made to  
the information herein; these changes will be incorporated  
in new editions of the publication. IBM may make  
improvements or changes to the products or the programs  
described in this publication at any time.  
It is possible that this publication may contain references  
to, or information about, IBM products (machines and  
programs), programming, or services that are not  
announced in your country. Such references or  
information must not be construed to mean that IBM  
intends to announce such IBM products, programming, or  
services in your country.  
Requests for technical information about IBM products  
should be made to your IBM authorized dealer or your IBM  
marketing representative.  
Copyright International Business Machines  
Corporation 1998. All rights reserved. Note to U.S.  
Government Users – Documentation related to restricted  
rights – Use, duplication, or disclosure is subject to  
restrictions set forth in GSA ADP Schedule Contract with  
IBM Corp.  
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About This Manual  
This manual contains service and reference information for  
IBM ThinkPad 380XD, 385XD (2635) products. Use this  
manual along with the advanced diagnostic tests to  
troubleshoot problems effectively.  
The manual is divided into sections as follows:  
Ÿ
Ÿ
The Introduction section provides general information,  
guidelines, and safety information required to service  
computers.  
The product-specific section includes service,  
reference, and product-specific parts information.  
Important  
This manual is intended for trained servicers who are  
familiar with ThinkPad products. Use this manual  
along with the advanced diagnostic tests to  
troubleshoot problems effectively.  
Before servicing an IBM ThinkPad product, be sure to  
review the safety information under “Safety Notices  
(Multi-lingual Translations)” on page 5 and “Safety  
Information” on page 12.  
iii  
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Related Publications  
The following product publications are available through  
IBM or your IBM Authorized Dealer.  
Publication  
Part, Form Number  
Mobile Systems HMM  
Volume 1: Laptop,  
30H2356, S82G-1501-01  
Notebook, Portable, and  
ThinkPad Computers  
(Models L40, CL57, N45,  
N51, P70/P75, ThinkPad  
300, 350, 500, 510, 710T,  
Expansion Unit, Dock I,  
Dock II)  
Mobile Systems HMM  
Volume 2: ThinkPad  
Computers  
(Models 340, 355, 360, 370,  
700, 701, 720, 750, 755)  
30H2357, S82G-1502-03  
84H8099, S82G-1503-05  
05L1271, S05L-1270-01  
Mobile Systems HMM  
Volume 3: ThinkPad  
Computers  
(Models 365, 380, 385, 560,  
760, SelectaDock)  
Mobile Systems HMM  
Volume 4: ThinkPad  
Computers  
(Models 380, 385, 560, 760,  
765)  
iv IBM ThinkPad 380XD, 385XD  
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Related Diskettes  
The following diskettes are available through IBM or your  
IBM Authorized Dealer.  
Diskette  
Part, Form Number  
ThinkPad 300 (2615)  
Advanced Diagnostics  
Diskette  
33G9361, S33G-9361  
ThinkPad 350, 350C, 425,  
425C (2618) Advanced  
Diagnostics Diskette  
A211000, GA21-1000  
76H7578, S30H-2498  
ThinkPad 365 (2625)  
Advanced Diagnostics  
Diskette  
ThinkPad 380/385 (2635)  
Maintenance Diskette  
06J0333, S06J-0333  
71G3702, S71G-3702  
ThinkPad 500 (2603)  
Advanced Diagnostics  
Diskette  
ThinkPad 510 (2604)  
Advanced Diagnostics  
Diskette  
83G8095, S83G-8095  
ThinkPad 700 (9552)  
Reference Diskette  
42G2017, S42G-2017  
42G2023, S42G-2023  
61G1194, S61G-1194  
78H5384, S78H-5384  
ThinkPad 700C (9552)  
Reference Diskette  
ThinkPad 720/720C (9552)  
Reference Diskette  
ThinkPad Hardware  
Maintenance Diskette  
(for all Models 355, 360,  
560, 750, 755, 760)  
ThinkPad Dock I (3545)  
Docking Station (3550)  
Data/Fax Modem  
71G4140, S71G-4140  
42G2428, S42G-2428  
61G1556, S61G-1556  
84F8540, S84F-8540  
FaxConcentrator/A  
v
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vi IBM ThinkPad 380XD, 385XD  
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IBM ThinkPad 380XD, 385XD (2635)  
Introduction . . . . . . . . . . . . . . . . . . . .  
3
4
4
5
How to Use Error Messages  
. . . . . . . . . .  
How to Read POST Error Messages  
Safety Notices (Multi-lingual Translations)  
. . . . . .  
. . . . .  
Safety Information  
General Safety  
. . . . . . . . . . . . . . . . 12  
. . . . . . . . . . . . . . . . 12  
Electrical Safety . . . . . . . . . . . . . . . . 13  
Safety Inspection Guide . . . . . . . . . . . . 14  
Handling Electrostatic Discharge-Sensitive Devices 16  
Grounding Requirements . . . . . . . . . . . . 16  
Laser Compliance Statement  
. . . . . . . . . . . 17  
Read This First . . . . . . . . . . . . . . . . . . 19  
Product Overview . . . . . . . . . . . . . . . . . 23  
Checkout Guide  
Audio Checkout . . . . . . . . . . . . . . . . 26  
Diskette Drive Checkout . . . . . . . . . . . . 26  
Fan Checkout . . . . . . . . . . . . . . . . . 27  
Keyboard or Auxiliary Input Device Checkout . . 27  
Memory Checkout . . . . . . . . . . . . . . . 28  
. . . . . . . . . . . . . . . . . 25  
Power Systems Checkout  
Status Indicator Checkout  
. . . . . . . . . . . 29  
. . . . . . . . . . . 32  
System Board and CPU Card Checkout . . . . . 32  
TrackPoint III Checkout . . . . . . . . . . . . 32  
Optional Device Checkout . . . . . . . . . . . . . 33  
Port Replicator Checkout . . . . . . . . . . . . 33  
External Monitor Self-Test  
Power Management Features  
. . . . . . . . . . . 34  
. . . . . . . . . . . 35  
Symptom-to-FRU Index . . . . . . . . . . . . . . 38  
Numeric Error Codes . . . . . . . . . . . . . . 38  
Beep Symptoms . . . . . . . . . . . . . . . . 43  
Function-Related Symptoms  
Indicator-Related Symptoms  
. . . . . . . . . . 44  
. . . . . . . . . . 44  
Infrared-Related Symptoms . . . . . . . . . . . 45  
Keyboard- or TrackPoint III-Related Symptoms 45  
LCD-Related Symptoms . . . . . . . . . . . . 46  
Peripheral-Device-Related Symptoms . . . . . . 46  
Power-Related Symptoms . . . . . . . . . . . 47  
Other Symptoms . . . . . . . . . . . . . . . . 47  
.
Intermittent Problems  
Undetermined Problems  
. . . . . . . . . . . . . 47  
. . . . . . . . . . . . 48  
Running the Diagnostics . . . . . . . . . . . . . . 49  
PC Card (PCMCIA) Slots Test  
Universal Serial Bus (USB) Test  
. . . . . . . . . 50  
. . . . . . . . 50  
Displaying the Error Log . . . . . . . . . . . . 50  
Checking the Installed Devices List . . . . . . . 50  
Diagnostic Error Codes  
. . . . . . . . . . . . 52  
Related Service Procedures . . . . . . . . . . . . 55  
Status Indicators . . . . . . . . . . . . . . . . 55  
Password Combinations  
. . . . . . . . . . . . 56  
Running a Low-Level Format . . . . . . . . . . 57  
Maintenance Diskette Download  
. . . . . . . . 57  
Copyright IBM Corp. 1998  
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Fn Key Combinations  
. . . . . . . . . . . . . 57  
FRU Removals and Replacements . . . . . . . . . 58  
Important Notice . . . . . . . . . . . . . . . . 59  
FRU Service Procedure  
Removal Reference  
. . . . . . . . . . . . 60  
. . . . . . . . . . . . . . 61  
1010 DIMM Card and Backup Battery  
. . . . . 62  
1020 Battery Pack . . . . . . . . . . . . . . 63  
1030 Hard Disk Drive . . . . . . . . . . . . . 64  
1040 Keyboard Unit . . . . . . . . . . . . . . 66  
1050 Keyboard and Speaker . . . . . . . . . . 69  
1060 CD-ROM Drive and Diskette Drive Assembly 71  
1070 Diskette Drive and CD-ROM Drive  
1080 LCD Unit . . . . . . . . . . . . . . . . 76  
1090 Fan Assembly, CPU Card, Thermal Rubber 79  
. . . . . . . . . . . 82  
. . . . 72  
1100 Upper Shield Case  
1110 Box Speaker and Microphone  
. . . . . . 83  
1120 DC/DC Card  
. . . . . . . . . . . . . . 85  
1130 System Board and PC Card Slot . . . . . 87  
1140 Battery Pack Latch  
2010 LCD Front Cover  
. . . . . . . . . . . 90  
. . . . . . . . . . . . 91  
2020 LCD Panel  
. . . . . . . . . . . . . . . 93  
2030 LCD Inverter Card . . . . . . . . . . . . 97  
2040 LCD Misc. Parts . . . . . . . . . . . . . 99  
2050 LCD Cable  
Locations . . . . . . . . . . . . . . . . . . . . 104  
Front View . . . . . . . . . . . . . . . . . 104  
. . . . . . . . . . . . . . 103  
Bottom View . . . . . . . . . . . . . . . . . 105  
Rear View . . . . . . . . . . . . . . . . . . 106  
Parts Listing  
. . . . . . . . . . . . . . . . . . 107  
System Unit . . . . . . . . . . . . . . . . . 108  
Hard Disk Drive, CD-ROM, Diskette Drive . . . 110  
LCD FRU . . . . . . . . . . . . . . . . . . 111  
Option Parts List . . . . . . . . . . . . . . . 118  
Notices . . . . . . . . . . . . . . . . . . . . . 123  
Trademarks . . . . . . . . . . . . . . . . . 123  
2
IBM ThinkPad 380XD, 385XD  
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Introduction  
Important  
Diskette fixes are customer installable. The diskette  
fixes are located on the PC Company Bulletin Board  
Service (BBS). The direct phone line for modem  
connection is 919-557-0001 or tieline 255-0001.  
Advise customers to contact the PC Company  
HelpCenter at 800-772-2227 if they need assistance in  
obtaining or installing any diskette fixes.  
Customers in Canada should call IBM HelpPC at  
800-565-3344 for assistance or down-load information.  
The Canadian BBS phone numbers are:  
Montreal  
Toronto  
514-938-3022  
905-316-4255  
Vancouver 604-664-6464  
Winnipeg 204-934-2735  
FRU Replacement Strategy  
Ensure that all diskette fixes are installed prior to replacing  
any FRUs. And, use the following strategy to prevent  
unnecessary FRU replacement and service expense:  
Ÿ
If you are instructed to replace a FRU and that  
does not correct the problem, reinstall the original  
FRU before you continue.  
Ÿ
Some computers have both a processor board and a  
system board. If you are instructed to replace either  
the processor board or the system board, and the first  
board that you replaced does not correct the problem,  
reinstall the original board, then replace the other  
(processor or system) board.  
Ÿ
If an adapter or device consists of more than one  
FRU, an error code may be caused by any of the  
FRUs. Before replacing the adapter or device,  
remove the FRUs, one by one, to see if the  
symptoms change. Replace only the FRU that  
changed the symptoms.  
Attention  
A customized setup configuration (other than default  
settings) may exist on the computer you are servicing.  
Running Automatic Configuration may alter those  
settings. Note the current configuration settings (using  
the View Configuration option) and verify that the  
settings are in place when service is complete.  
The advanced diagnostic tests are intended to test only  
IBM products. Non-IBM products or modified options can  
give false errors and invalid responses.  
IBM ThinkPad 380XD, 385XD (2635)  
3
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Hard Disk Drive Replacement Strategy:  
Always try to run a low-level format before replacing a hard  
disk drive.  
Attention  
The drive startup sequence in the computer you are  
servicing might have been changed. Be extremely  
careful during write operations such as copying,  
saving, or formatting. Data or programs can be  
overwritten if you select an incorrect drive.  
How to Use Error Messages  
Use the error codes displayed on the screen to diagnose  
failures. If more than one error code is displayed, begin  
the diagnosis with the first error code. The cause of the  
first error code can result in false error codes being  
displayed. If no error code is displayed, see if the error  
symptom is listed in the Symptom-to-FRU Index for the  
computer you are servicing.  
How to Read POST Error Messages  
POST error messages are displayed on the screen as  
three, four, five, or eight digits. The error messages that  
can be displayed as shorter POST messages are  
highlighted in this index. Some digits will represent  
different information for SCSI errors versus non-SCSI  
errors.  
The following example shows which digits display the  
shorter POST error messages and also defines the SCSI  
information in an eight-digit error message.  
Shorter POST Messages  
┌────┬────┬────┬────┐  
┌────┬────┬────┬────┬────┬────┬────┬────┐  
│ ð │ ð │ ð │ ð │ ð │ ð │ ð │ ð │  
└────┴────┴────┴────┴────┴────┴────┴────┘  
Reserved │  
Size (SCSI)  
└────┴────┘  
Device Code  
Slot Number (SCSI)  
Logical Unit Number (SCSI)  
ID (SCSI)  
All SCSI devices are set to a different SCSI ID.  
Duplicate SCSI ID settings can generate a false error  
message. Use the SCSI ID to determine whether the error  
message is coming from an internal or an external device.  
4
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Safety Notices (Multi-lingual  
Translations)  
In this manual, safety notices appear in English with a  
page number reference to the appropriate multi-lingual,  
translated safety notice found in this section.  
The following safety notices are provided in English,  
French, German, Italian, and Spanish languages.  
Safety Notice 1  
Before the computer is powered-on after FRU  
replacement, make sure all screws, springs, or other  
small parts are in place and are not left loose inside  
the computer. Verify this by shaking the computer  
and listening for rattling sounds. Metallic parts or  
metal flakes can cause electrical shorts.  
Avant de remettre l'ordinateur sous tension après  
remplacement d'une unité en clientèle, vérifiez que  
tous les ressorts, vis et autres pièces sont bien en  
place et bien fixées. Pour ce faire, secouez l'unité et  
assurez-vous qu'aucun bruit suspect ne se produit.  
Des pièces métalliques ou des copeaux de métal  
pourraient causer un court-circuit.  
Bevor nach einem FRU-Austausch der Computer  
wieder angeschlossen wird, muß sichergestellt  
werden, daß keine Schrauben, Federn oder andere  
Kleinteile fehlen oder im Gehäuse vergessen wurden.  
Der Computer muß geschüttelt und auf  
Klappergeräusche geprüft werden. Metallteile oder  
-splitter können Kurzschlüsse erzeugen.  
Prima di accendere l'elaboratore dopo che é stata  
effettuata la sostituzione di una FRU, accertarsi che  
tutte le viti, le molle e tutte le altri parti di piccole  
dimensioni siano nella corretta posizione e non siano  
sparse all'interno dell'elaboratore. Verificare ciò  
scuotendo l'elaboratore e prestando attenzione ad  
eventuali rumori; eventuali parti o pezzetti metallici  
possono provocare cortocircuiti pericolosi.  
Antes de encender el sistema despues de sustituir  
una FRU, compruebe que todos los tornillos, muelles  
y demás piezas pequeñas se encuentran en su sitio y  
no se encuentran sueltas dentro del sistema.  
Compruébelo agitando el sistema y escuchando los  
posibles ruidos que provocarían. Las piezas metálicas  
pueden causar cortocircuitos eléctricos.  
IBM ThinkPad 380XD, 385XD (2635)  
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Safety Notice 2  
Some standby batteries contain a small amount of  
nickel and cadmium. Do not disassemble it, recharge  
it, throw it into fire or water, or short-circuit it. Dispose  
of the battery as required by local ordinances or  
regulations. Use only the battery in the appropriate  
parts listing. Use of an incorrect battery can result in  
ignition or explosion of the battery.  
Certaines batteries de secours contiennent du nickel  
et du cadmium. Ne les démontez pas, ne les  
rechargez pas, ne les exposez ni au feu ni à l'eau.  
Ne les mettez pas en court-circuit. Pour les mettre au  
rebut, conformez-vous à la réglementation en vigueur.  
Lorsque vous remplacez la pile de sauvegarde ou  
celle de l'horloge temps réel, veillez à n'utiliser que les  
modèles cités dans la liste de pièces détachées  
adéquate. Une batterie ou une pile inappropriée  
risque de prendre feu ou d'exploser.  
Die Bereitschaftsbatterie, die sich unter dem  
Diskettenlaufwerk befindet, kann geringe Mengen  
Nickel und Cadmium enthalten. Sie darf nur durch die  
Verkaufsstelle oder den IBM Kundendienst  
ausgetauscht werden. Sie darf nicht zerlegt,  
wiederaufgeladen, kurzgeschlossen, oder Feuer oder  
Wasser ausgesetzt werden. Die Batterie kann  
schwere Verbrennungen oder Verätzungen  
verursachen. Bei der Entsorgung die örtlichen  
Bestimmungen für Sondermüll beachten. Beim  
Ersetzen der Bereitschafts- oder Systembatterie nur  
Batterien des Typs verwenden, der in der  
Ersatzteilliste aufgeführt ist. Der Einsatz falscher  
Batterien kann zu Entzündung oder Explosion führen.  
Alcune batterie di riserva contengono una piccola  
quantità di nichel e cadmio. Non smontarle, ricaricarle,  
gettarle nel fuoco o nell'acqua né cortocircuitarle.  
Smaltirle secondo la normativa in vigore (DPR 915/82,  
successive disposizioni e disposizioni locali). Quando  
si sostituisce la batteria dell'RTC (real time clock) o la  
batteria di supporto, utilizzare soltanto i tipi inseriti  
nell'appropriato Catalogo parti. L'impiego di una  
batteria non adatta potrebbe determinare l'incendio o  
l'esplosione della batteria stessa.  
Algunas baterías de reserva contienen una pequeña  
cantidad de níquel y cadmio. No las desmonte, ni  
recargue, ni las eche al fuego o al agua ni las  
cortocircuite. Deséchelas tal como dispone la  
normativa local. Utilice sólo baterías que se  
encuentren en la lista de piezas. La utilización de una  
batería no apropiada puede provocar la ignición o  
explosión de la misma.  
6
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Safety Notice 3  
The battery pack contains small amounts of nickel.  
Do not disassemble it, throw it into fire or water, or  
short-circuit it. Dispose of the battery pack as  
required by local ordinances or regulations. Use only  
the battery in the appropriate parts listing when  
replacing the battery pack. Use of an incorrect battery  
can result in ignition or explosion of the battery.  
La batterie contient du nickel. Ne la démontez pas,  
ne l'exposez ni au feu ni à l'eau. Ne la mettez pas en  
court-circuit. Pour la mettre au rebut, conformez-vous  
à la réglementation en vigueur. Lorsque vous  
remplacez la batterie, veillez à n'utiliser que les  
modèles cités dans la liste de pièces détachées  
adéquate. En effet, une batterie inappropriée risque  
de prendre feu ou d'exploser.  
Akkus enthalten geringe Mengen von Nickel. Sie  
dürfen nicht zerlegt, wiederaufgeladen,  
kurzgeschlossen, oder Feuer oder Wasser ausgesetzt  
werden. Bei der Entsorgung die örtlichen  
Bestimmungen für Sondermüll beachten. Beim  
Ersetzen der Batterie nur Batterien des Typs  
verwenden, der in der Ersatzteilliste aufgeführt ist.  
Der Einsatz falscher Batterien kann zu Entzündung  
oder Explosion führen.  
La batteria contiene piccole quantità di nichel. Non  
smontarla, gettarla nel fuoco o nell'acqua né  
cortocircuitarla. Smaltirla secondo la normativa in  
vigore (DPR 915/82, successive disposizioni e  
disposizioni locali). Quando si sostituisce la batteria,  
utilizzare soltanto i tipi inseriti nell'appropriato  
Catalogo parti. L'impiego di una batteria non adatta  
potrebbe determinare l'incendio o l'esplosione della  
batteria stessa.  
Las baterías contienen pequeñas cantidades de  
níquel. No las desmonte, ni recargue, ni las eche al  
fuego o al agua ni las cortocircuite. Deséchelas tal  
como dispone la normativa local. Utilice sólo baterías  
que se encuentren en la lista de piezas al sustituir la  
batería. La utilización de una batería no apropiada  
puede provocar la ignición o explosión de la misma.  
IBM ThinkPad 380XD, 385XD (2635)  
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Safety Notice 4  
The lithium battery can cause a fire, explosion, or  
severe burn. Do not recharge it, remove its polarized  
connector, disassemble it, heat it above 100°C  
(212°F), incinerate it, or expose its cell contents to  
water. Dispose of the battery as required by local  
ordinances or regulations. Use only the battery in the  
appropriate parts listing. Use of an incorrect battery  
can result in ignition or explosion of the battery.  
La pile de sauvegarde contient du lithium. Elle  
présente des risques d'incendie, d'explosion ou de  
brûlures graves. Ne la rechargez pas, ne retirez pas  
son connecteur polarisé et ne la démontez pas. Ne  
l'exposez pas à une temperature supérieure à 100°C,  
ne la faites pas brûler et n'en exposez pas le contenu  
à l'eau. Mettez la pile au rebut conformément à la  
réglementation en vigueur. Une pile inappropriée  
risque de prendre feu ou d'exploser.  
Die Systembatterie ist eine Lithiumbatterie. Sie kann  
sich entzünden, explodieren oder schwere  
Verbrennungen hervorrufen. Batterien dieses Typs  
dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt  
oder verbrannt werden. Auch darf ihr Inhalt nicht mit  
Wasser in Verbindung gebracht oder der zur richtigen  
Polung angebrachte Verbindungsstecker entfernt  
werden. Bei der Entsorgung die örtlichen  
Bestimmungen für Sondermüll beachten. Beim  
Ersetzen der Batterie nur Batterien des Typs  
verwenden, der in der Ersatzteilliste aufgeführt ist.  
Der Einsatz falscher Batterien kann zu Entzündung  
oder Explosion führen.  
La batteria di supporto e una batteria al litio e puo  
incendiarsi, esplodere o procurare gravi ustioni.  
Evitare di ricaricarla, smontarne il connettore  
polarizzato, smontarla, riscaldarla ad una temperatura  
superiore ai 100 gradi centigradi, incendiarla o gettarla  
in acqua. Smaltirla secondo la normativa in vigore  
(DPR 915/82, successive disposizioni e disposizioni  
locali). L'impiego di una batteria non adatta potrebbe  
determinare l'incendio o l'esplosione della batteria  
stessa.  
La bateria de repuesto es una bateria de litio y puede  
provocar incendios, explosiones o quemaduras  
graves. No la recargue, ni quite el conector  
polarizado, ni la desmonte, ni caliente por encima de  
los 100°C (212°F), ni la incinere ni exponga el  
contenido de sus celdas al agua. Deséchela tal como  
dispone la normativa local.  
8
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Safety Notice 5  
If the LCD breaks and the fluid from inside the LCD  
gets into your eyes or on your hands, immediately  
wash the affected areas with water for at least 15  
minutes. Seek medical care if any symptoms from the  
fluid are present after washing.  
Si le panneau d'affichage à cristaux liquides se brise  
et que vous recevez dans les yeux ou sur les mains  
une partie du fluide, rincez-les abondamment pendant  
au moins quinze minutes. Consultez un médecin si  
des symptômes persistent après le lavage.  
Die Leuchtstoffröhre im LCD-Bildschirm enthält  
Quecksilber. Bei der Entsorgung die örtlichen  
Bestimmungen für Sondermüll beachten. Der  
LCD-Bildschirm besteht aus Glas und kann  
zerbrechen, wenn er unsachgemäß behandelt wird  
oder der Computer auf den Boden fällt. Wenn der  
Bildschirm beschädigt ist und die darin befindliche  
Flüssigkeit in Kontakt mit Haut und Augen gerät,  
sollten die betroffenen Stellen mindestens 15 Minuten  
mit Wasser abgespült und bei Beschwerden  
anschließend ein Arzt aufgesucht werden.  
Nel caso che caso l'LCD si dovesse rompere ed il  
liquido in esso contenuto entrasse in contatto con gli  
occhi o le mani, lavare immediatamente le parti  
interessate con acqua corrente per almeno 15 minuti;  
poi consultare un medico se i sintomi dovessero  
permanere.  
Si la LCD se rompe y el fluido de su interior entra en  
contacto con sus ojos o sus manos, lave  
inmediatamente las áreas afectadas con agua durante  
15 minutos como mínimo. Obtenga atención medica  
si se presenta algún síntoma del fluido despues de  
lavarse.  
IBM ThinkPad 380XD, 385XD (2635)  
9
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Safety Notice 6  
To avoid shock, do not remove the plastic cover that  
surrounds the lower portion of the inverter card.  
Afin d'éviter tout risque de choc électrique, ne retirez  
pas le cache en plastique protégeant la partie  
inférieure de la carte d'alimentation.  
Aus Sicherheitsgründen die Kunststoffabdeckung, die  
den unteren Teil der Spannungswandlerplatine umgibt,  
nicht entfernen.  
Per evitare scosse elettriche, non rimuovere la  
copertura in plastica che avvolge la parte inferiore  
della scheda invertitore.  
Para evitar descargas, no quite la cubierta de plástico  
que rodea la parte baja de la tarjeta invertida.  
Safety Notice 7  
Though main batteries have low voltage, a shorted or  
grounded battery can produce enough current to burn  
combustible materials or personnel.  
Bien que le voltage des batteries principales soit peu  
élevé, le court-circuit ou la mise à la masse d'une  
batterie peut produire suffisamment de courant pour  
brûler des matériaux combustibles ou causer des  
brûlures corporelles graves.  
Obwohl Hauptbatterien eine niedrige Spannung  
haben, können sie doch bei Kurzschluß oder Erdung  
genug Strom abgeben, um brennbare Materialien zu  
entzünden oder Verletzungen bei Personen  
hervorzurufen.  
Sebbene le batterie di alimentazione siano a basso  
voltaggio, una batteria in corto circuito o a massa può  
fornire corrente sufficiente da bruciare materiali  
combustibili o provocare ustioni ai tecnici di  
manutenzione.  
Aunque las baterías principales tienen un voltaje bajo,  
una batería cortocircuitada o con contacto a tierra  
puede producir la corriente suficiente como para  
quemar material combustible o provocar quemaduras  
en el personal.  
10 IBM ThinkPad 380XD, 385XD  
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Safety Notice 8  
Before removing any FRU, power-off the computer,  
unplug all power cords from electrical outlets, remove  
the battery pack, then disconnect any interconnecting  
cables.  
Avant de retirer une unité remplaçable en clientèle,  
mettez le système hors tension, débranchez tous les  
cordons d'alimentation des socles de prise de courant,  
retirez la batterie et déconnectez tous les cordons  
d'interface.  
Die Stromzufuhr muß abgeschaltet, alle Stromkabel  
aus der Steckdose gezogen, der Akku entfernt und  
alle Verbindungskabel abgenommen sein, bevor eine  
FRU entfernt wird.  
Prima di rimuovere qualsiasi FRU, spegnere il  
sistema, scollegare dalle prese elettriche tutti i cavi di  
alimentazione, rimuovere la batteria e poi scollegare i  
cavi di interconnessione.  
Antes de quitar una FRU, apague el sistema,  
desenchufe todos los cables de las tomas de corriente  
eléctrica, quite la batería y, a continuación,  
desconecte cualquier cable de conexión entre  
dispositivos.  
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Safety Information  
The following section contains the safety information that  
you need to be familiar with before servicing an IBM  
mobile computer.  
General Safety  
Follow these rules to ensure general safety:  
Ÿ
Ÿ
Observe good housekeeping in the area of the  
machines during and after maintenance.  
When lifting any heavy object:  
1. Ensure you can stand safely without slipping.  
2. Distribute the weight of the object equally  
between your feet.  
3. Use a slow lifting force. Never move suddenly  
or twist when you attempt to lift.  
4. Lift by standing or by pushing up with your leg  
muscles; this action removes the strain from the  
muscles in your back. Do not attempt to lift any  
objects that weigh more than 16 kg (35 lb) or  
objects that you think are too heavy for you.  
Do not perform any action that causes hazards to the  
customer, or that makes the equipment unsafe.  
Before you start the machine, ensure that other  
service representatives and the customer's personnel  
are not in a hazardous position.  
Ÿ
Ÿ
Ÿ
Place removed covers and other parts in a safe  
place, away from all personnel, while you are  
servicing the machine.  
Ÿ
Ÿ
Keep your tool case away from walk areas so that  
other people will not trip over it.  
Do not wear loose clothing that can be trapped in the  
moving parts of a machine. Ensure that your sleeves  
are fastened or rolled up above your elbows. If your  
hair is long, fasten it.  
Ÿ
Ÿ
Insert the ends of your necktie or scarf inside clothing  
or fasten it with a nonconductive clip, approximately 8  
centimeters (3 inches) from the end.  
Do not wear jewelry, chains, metal-frame eyeglasses,  
or metal fasteners for your clothing.  
Attention: Metal objects are good electrical  
conductors.  
Ÿ
Wear safety glasses when you are: hammering,  
drilling soldering, cutting wire, attaching springs, using  
solvents, or working in any other conditions that might  
be hazardous to your eyes.  
Ÿ
Ÿ
After service, reinstall all safety shields, guards,  
labels, and ground wires. Replace any safety device  
that is worn or defective.  
Reinstall all covers correctly before returning the  
machine to the customer.  
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Electrical Safety  
Observe the following rules when working on electrical  
equipment.  
Important  
Use only approved tools and test equipment. Some  
hand tools have handles covered with a soft material  
that does not insulate you when working with live  
electrical currents.  
Many customers have, near their equipment, rubber  
floor mats that contain small conductive fibers to  
decrease electrostatic discharges. Do not use this  
type of mat to protect yourself from electrical shock.  
Ÿ
Find the room emergency power-off (EPO) switch,  
disconnecting switch, or electrical outlet. If an  
electrical accident occurs, you can then operate the  
switch or unplug the power cord quickly.  
Ÿ
Ÿ
Do not work alone under hazardous conditions or  
near equipment that has hazardous voltages.  
Disconnect all power before:  
Performing a mechanical inspection  
Working near power supplies  
Removing or installing main units  
Ÿ
Ÿ
Before you start to work on the machine, unplug the  
power cord. If you cannot unplug it, ask the customer  
to power-off the wall box that supplies power to the  
machine and to lock the wall box in the off position.  
If you need to work on a machine that has exposed  
electrical circuits, observe the following precautions:  
Ensure that another person, familiar with the  
power-off controls, is near you.  
Attention: Another person must be there to  
switch off the power, if necessary.  
Use only one hand when working with  
powered-on electrical equipment; keep the other  
hand in your pocket or behind your back.  
Attention: There must be a complete circuit to  
cause electrical shock. By observing the above  
rule, you may prevent a current from passing  
through your body.  
When using testers, set the controls correctly  
and use the approved probe leads and  
accessories for that tester.  
Stand on suitable rubber mats (obtained locally,  
if necessary) to insulate you from grounds such  
as metal floor strips and machine frames.  
Observe the special safety precautions when you  
work with very high voltages; these instructions are in  
the safety sections of maintenance information. Use  
extreme care when measuring high voltages.  
IBM ThinkPad 380XD, 385XD (2635) 13  
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Ÿ
Regularly inspect and maintain your electrical hand  
tools for safe operational condition.  
Ÿ
Ÿ
Do not use worn or broken tools and testers.  
Never assume that power has been disconnected  
from a circuit. First, check that it has been  
powered-off.  
Ÿ
Ÿ
Ÿ
Always look carefully for possible hazards in your  
work area. Examples of these hazards are moist  
floors, nongrounded power extension cables, power  
surges, and missing safety grounds.  
Do not touch live electrical circuits with the reflective  
surface of a plastic dental mirror. The surface is  
conductive; such touching can cause personal injury  
and machine damage.  
Do not service the following parts with the power on  
when they are removed from their normal operating  
places in a machine:  
Power supply units  
Pumps  
Blowers and fans  
Motor generators  
and similar units. (This practice ensures correct  
grounding of the units.)  
Ÿ
If an electrical accident occurs:  
Use caution; do not become a victim  
yourself.  
Switch off power.  
Send another person to get medical aid.  
Safety Inspection Guide  
The intent of this inspection guide is to assist you in  
identifying potentially unsafe conditions on these products.  
Each machine, as it was designed and built, had required  
safety items installed to protect users and service  
personnel from injury. This guide addresses only those  
items. However, good judgment should be used to identify  
potential safety hazards due to attachment of non-IBM  
features or options not covered by this inspection guide.  
If any unsafe conditions are present, you must determine  
how serious the apparent hazard could be and whether  
you can continue without first correcting the problem.  
Consider these conditions and the safety hazards they  
present:  
Ÿ
Electrical hazards, especially primary power (primary  
voltage on the frame can cause serious or fatal  
electrical shock).  
Ÿ
Ÿ
Explosive hazards, such as a damaged CRT face or  
bulging capacitor  
Mechanical hazards, such as loose or missing  
hardware  
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The guide consists of a series of steps presented in a  
checklist. Begin the checks with the power off, and the  
power cord disconnected.  
Checklist:  
1. Check exterior covers for damage (loose, broken, or  
sharp edges).  
2. Power-off the computer. Disconnect the power cord.  
3. Check the power cord for:  
a. A third-wire ground connector in good condition.  
Use a meter to measure third-wire ground  
continuity for 0.1 ohm or less between the  
external ground pin and frame ground.  
b. The power cord should be the appropriate type  
as specified in the parts listings.  
c. Insulation must not be frayed or worn.  
4. Remove the cover.  
5. Check for any obvious non-IBM alterations. Use  
good judgment as to the safety of any non-IBM  
alterations.  
6. Check inside the unit for any obvious unsafe  
conditions, such as metal filings, contamination, water  
or other liquids, or signs of fire or smoke damage.  
7. Check for worn, frayed, or pinched cables.  
8. Check that the power-supply cover fasteners (screws  
or rivets) have not been removed or tampered with.  
IBM ThinkPad 380XD, 385XD (2635) 15  
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Handling Electrostatic  
Discharge-Sensitive Devices  
Any computer part containing transistors or integrated  
circuits (ICs) should be considered sensitive to electrostatic  
discharge (ESD). ESD damage can occur when there is a  
difference in charge between objects. Protect against ESD  
damage by equalizing the charge so that the machine, the  
part, the work mat, and the person handling the part are all  
at the same charge.  
Notes  
1. Use product-specific ESD procedures when they  
exceed the requirements noted here.  
2. Make sure that the ESD protective devices you  
use have been certified (ISO 9000) as fully  
effective.  
When handling ESD-sensitive parts:  
Ÿ
Keep the parts in protective packages until they are  
inserted into the product.  
Ÿ
Ÿ
Avoid contact with other people.  
Wear a grounded wrist strap against your skin to  
eliminate static on your body.  
Ÿ
Ÿ
Ÿ
Prevent the part from touching your clothing. Most  
clothing is insulative and retains a charge even when  
you are wearing a wrist strap.  
Use the black side of a grounded work mat to provide  
a static-free work surface. The mat is especially  
useful when handling ESD-sensitive devices.  
Select a grounding system, such as those listed  
below, to provide protection that meets the specific  
service requirement.  
Note  
The use of a grounding system is desirable but  
not required to protect against ESD damage.  
Attach the ESD ground clip to any frame ground,  
ground braid, or green-wire ground.  
Use an ESD common ground or reference point  
when working on a double-insulated or  
battery-operated system. You can use coax or  
connector-outside shells on these systems.  
Use the round ground-prong of the AC plug on  
AC-operated computers.  
Grounding Requirements  
Electrical grounding of the computer is required for  
operator safety and correct system function. Proper  
grounding of the electrical outlet can be verified by a  
certified electrician.  
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Laser Compliance Statement  
Some IBM Personal Computer models are equipped from  
the factory with a CD-ROM drive. CD-ROM drives are  
also sold separately as options. The CD-ROM drive is a  
laser product. The CD-ROM drive is certified in the U.S. to  
conform to the requirements of the Department of Health  
and Human Services 21 Code of Federal Regulations  
(DHHS 21 CFR) Subchapter J for Class 1 laser products.  
Elsewhere, the drive is certified to conform to the  
requirements of the International Electrotechnical  
Commission (IEC) 825 and CENELEC EN 60 825 for  
Class 1 laser products.  
When a CD-ROM drive is installed, note the following.  
CAUTION:  
Use of controls or adjustments or performance of  
procedures other than those specified herein might  
result in hazardous radiation exposure.  
O uso de controles, ajustes ou desempenho de  
procedimentos diferentes daqueles aqui especificados  
pode resultar em perigosa exposição à radiação.  
Pour éviter tout risque d'exposition au rayon laser,  
respectez les consignes de réglage et d'utilisation des  
commandes, ainsi que les procédures décrites.  
Werden Steuer- und Einstellelemente anders als hier  
festgesetzt verwendet, kann gefährliche  
Laserstrahlung auftreten.  
L'utilizzo di controlli, regolazioni o l'esecuzione di  
procedure diverse da quelle specificate possono  
provocare l'esposizione a  
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El uso de controles o ajustes o la ejecución de  
procedimientos distintos de los aquí especificados  
puede provocar la exposición a radiaciones  
peligrosas.  
Opening the CD-ROM drive could result in exposure to  
hazardous laser radiation. There are no serviceable parts  
inside the CD-ROM drive. Do not open.  
Some CD-ROM drives contain an embedded Class 3A or  
Class 3B laser diode. Note the following.  
DANGER:  
Laser radiation when open. Do not stare into the  
beam, do not view directly with optical instruments,  
and avoid direct exposure to the beam.  
Radiação por raio laser ao abrir. Não olhe fixo no feixe  
de luz, não olhe diretamente por meio de instrumentos  
óticos e evite exposição direta com o feixe de luz.  
Rayonnement laser si carter ouvert. Évitez de fixer le  
faisceau, de le regarder directement avec des  
instruments optiques, ou de vous exposer au rayon.  
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder  
über optische Instrumente in den Laserstrahl sehen  
und den Strahlungsbereich meiden.  
Kinyitáskor lézersugár ! Ne nézzen bele se szabad  
szemmel, se optikai eszközökkel. Kerülje a  
sugárnyalábbal való érintkezést !  
Aprendo l'unità vengono emesse radiazioni laser. Non  
fissare il fascio, non guardarlo direttamente con  
strumenti ottici e evitare l'esposizione diretta al fascio.  
Radiación láser al abrir. No mire fijamente ni examine  
con instrumental óptico el haz de luz. Evite la  
exposición directa al haz.  
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Read This First  
Before you go to the checkout guide, be sure to read this  
section.  
Important Notes  
Ÿ
Ÿ
Ÿ
Only certified trained personnel should  
service the computer.  
Read FRU service procedures before replacing  
any FRUs.  
Be extremely careful during write operations  
such as copying, saving, or formatting.  
Drives in the computer that you are servicing  
might have been rearranged or the drive start-up  
sequence might have been altered. If you select  
an incorrect drive, data or programs can be  
overwritten.  
Ÿ
Ÿ
Replace FRUs only for the correct model.  
When you replace the FRU, make sure the  
model of the machine and FRU part number are  
correct by referring to the parts list.  
FRUs should not be replaced because of a  
single, unreproducible failure. Single failures  
can occur from a variety of reasons that have  
nothing to do with a hardware problem, such as  
cosmic radiation, electrostatic discharge, or  
software errors. FRU replacement should be  
considered only when a recurring problem exists.  
If this is suspected, clear the error log and run  
the test again. Do not replace any FRUs if log  
errors do not reappear.  
Ÿ
Be careful not to replace a nondefective FRU.  
How to Use Error Messages: Use the error  
codes displayed on the screen to diagnose failures. If  
more than one error code is displayed, begin the diagnosis  
with the first error code. The cause of the first error code  
can result in false error codes being displayed. If no error  
code is displayed, see if the error symptom is listed in the  
“Symptom-to-FRU Index” on page 38.  
Port Replicator Problems: If you suspect a  
problem with the Port Replicator, see “Port Replicator  
Checkout” on page 33.  
How to Diagnose Multiple FRUs: When the  
adapter or device has more than one FRU, the error code  
could be caused by either FRU. Before replacing multiple  
FRUs, try removing or exchanging each FRU, one by one  
in the designated sequence, to see if the symptoms  
change.  
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What to Do First: The service personnel must fill in  
the following information in the parts exchange form or  
parts return form that is attached to the returned FRU:  
1. Name and phone number of service personnel  
2. Date of service  
3. Date when the part failed  
4. Date of purchase  
5. Failure symptoms, error codes appearing on the  
monitor, and beep symptoms  
6. Procedure index and page number in which the  
failing FRU was detected  
7. Failing FRU name and the part number  
8. Machine type, model number, and serial number  
9. Customer's name and address  
Before checking problems with the computer, determine  
whether the damage is covered under the warranty by  
referring to the following:  
Warranty Note: During the warranty period, the customer  
may be responsible for repair costs if the computer  
damage was caused by misuse, accident,  
modification, unsuitable physical or operating  
environment, or improper maintenance by the  
customer. The following list provides some  
common items that are not covered under warranty  
and some symptoms that may indicate the system  
was subjected to stresses beyond normal use:  
The following is not covered under warranty:  
Ÿ
LCD panel cracked by applying excessive force  
or by being dropped  
Ÿ
Ÿ
Scratched (cosmetic) parts  
Cracked or broken plastic parts, broken latches,  
broken pins, or broken connectors caused by  
excessive force  
Ÿ
Ÿ
Damage caused by liquid spilled into the system  
Damage caused by improperly inserting a PC  
card or installation of an incompatible card  
Damage caused by any foreign material in the  
FDD  
Diskette drive damage caused by pressing the  
diskette drive cover or inserting diskettes with  
multiple labels  
Ÿ
Ÿ
Ÿ
Ÿ
Damaged or bent diskette eject button  
CD-ROM drive damage caused by shock from  
excessive force, or by being dropped  
Fuses blown by attaching a nonsupported device  
Forgotten computer password (making the  
computer unusable)  
Ÿ
Ÿ
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The following symptoms might indicate damage  
caused by nonwarranted activities:  
Ÿ
Missing parts may be a symptom of unauthorized  
service or modification.  
Ÿ
HDD spindles can become noisy from being  
subjected to excessive force or from being  
dropped.  
Ÿ
I9990303 errors can be caused by exposure to  
strong magnetic fields.  
Disabling the Power-On Password:  
Ÿ
When only the power-on password is installed.  
1. Turn off the computer.  
2. Turn the computer upside down, loosen the  
memory-slot cover screw .1/, and remove the  
memory-slot cover .2/.  
3. Short across the power-on password jumper  
pads .3/.  
3
1
4. Turn on the computer to clear the password, and  
wait until the POST ends.  
5. Reinstall the memory-slot cover, and turn the  
computer right side up.  
Verify that the password prompt does not appear.  
To reactivate the password, set the password again.  
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Ÿ
When both the power-on password and the  
supervisor password are set.  
1. Turn off the computer.  
2. Turn the computer upside down, loosen the  
memory-slot cover screw .1/, remove the  
memory-slot cover .2/.  
3. Short the two password jumper pads on the  
system board (see .3/ of the previous page).  
4. Turn on the computer. After a few seconds, the  
password prompt appears.  
5. Enter the supervisor password. The  
“Easy-setup main menu” appears.  
6. Select Password and then Power on. A  
rectangular box appears.  
7. Enter the supervisor password and press the  
Space bar once.  
8. Press Enter twice.  
9. Select Exit.  
10. Select Restart in the “Easy-setup main menu”  
and wait until the POST ends.  
11. Reinstall the memory-slot cover, and turn the  
computer right side up.  
Verify that the password prompt does not appear.  
To reactivate the password, set the password again.  
Power Shutdown Switch: The power shutdown  
switch resets the system regardless of the microcode  
status and forces a power off. Use this push button to  
power off when power is not completely off or when the  
microcode is in a hung state.  
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Product Overview  
The following table is an overview of the system features  
of the IBM ThinkPad 380XD or 385XD computer.  
Feature  
Description  
Processor  
380XD 2635-8xx/9xx/Bxx  
Ÿ
IntelPentium233  
MHz with MMX  
2635-Axx  
IntelPentium266  
MHz with MMX  
2635-Exx  
IntelPentiumII 233  
MHz with MMX  
2635-Fxx  
IntelPentiumII 266  
MHz with MMX  
385XD 2635-8xx  
IntelPentium233  
MHz with MMX  
2635-9xx  
IntelPentium266  
MHz with MMX  
2635-Dxx  
IntelPentiumII 266  
MHz with MMX  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Bus Architecture  
PCI Bus  
32MB (on the system board)  
Memory  
Ÿ
(Standard)  
Memory (Option)  
2635-8xx/9xx/Axx/Bxx  
Ÿ
8MB and 16MB 70ns EDO DIMM  
card  
Ÿ
16MB, 32MB, and 64MB EDO  
DIMM card (max. 96MB)  
2635-Dxx/Exx/Fxx  
16MB, 32MB, and 64MB 60ns  
EDO DIMM card (max. 96MB)  
Ÿ
CMOS RAM  
LCD  
242 bytes  
380XD 2635-8xx/Exx  
Ÿ
12.1-inch, 16M colors, 800×600  
pixel HPAñ color LCD  
2635-9xx/Axx/Bxx/Fxx  
Ÿ
12.1-inch, 16M colors, 800×600  
pixel TFT color LCD  
385XD 2635-8xx/9xx/Dxx  
Ÿ
12.1-inch, 16M colors, 800×600  
pixel HPAò color LCD  
Diskette Drive  
(Internal)  
Ÿ
1.44 MB (3-mode), 3.5-inch  
IBM ThinkPad 380XD, 385XD (2635) 23  
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Feature  
Description  
10×—24×  
380XD 2635-8xx  
3.2-GB, 2.5-inch, IDE  
interface  
2635-9xx/Exx  
4.0-GB, 2.5-inch, IDE  
interface  
2635-Axx/Fxx  
5.1-GB, 2.5-inch, IDE  
interface  
385XD 2635-8xx  
2.1-GB, 2.5-inch, IDE  
interface  
2635-9xx/Dxx  
3.2-GB, 2.5-inch, IDE  
interface  
CD-ROM Drive  
Hard Disk Drive  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
I/O Port  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Serial  
Parallel  
USB  
External monitor  
Headphone  
Microphone  
Port replicator  
Audio  
Ÿ
Ÿ
Ÿ
Ÿ
16-bit audio  
Internal speakers  
Internal microphone  
Mechanical volume  
Infrared Transfer  
PC Card  
Ÿ
Ÿ
IrDA 1.1  
One Type III  
or two Type I / Type II  
CardBus support  
ZV card support  
Ÿ
Ÿ
AC Adapter  
56Watt type  
Note: 1: High Performance Addressing  
24 IBM ThinkPad 380XD, 385XD  
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Checkout Guide  
Use the following procedure as a guide for computer  
problems. The diagnostic tests are intended to test only  
IBM products. Non-IBM products, prototype cards, or  
modified options can give false errors and invalid system  
responses.  
1. Obtain the symptoms in detail.  
2. Verify the symptoms by running the diagnostic test to  
re-create the same error or by repeating the same  
operation.  
Note  
To run the diagnostic test, refer to “Running the  
Diagnostics” on page 49. If the symptoms occur  
at irregular intervals and cannot be re-created  
(and therefore cannot be verified), go to  
“Symptom-to-FRU Index” on page 38; then go to  
“Intermittent Problems” on page 47.  
3. Match the verified symptoms with the following table  
and determine the page to go to.  
Verified Symptoms  
Go To  
Power failure. (The  
power indicator does not  
go on or stay on.)  
“Power Systems  
Checkout” on page 29.  
POST does not  
complete. No beeps or  
error codes are  
displayed.  
“Symptom-to-FRU  
Index” on page 38, and  
then go to “No Beep  
Symptoms” on page 43.  
The configuration is not  
the same as the  
installed devices.  
“Checking the Installed  
Devices List” on  
page 50.  
POST beeps, but no  
error codes are  
displayed.  
“Symptom-to-FRU  
Index” on page 38, and  
then go to “Beep  
Symptoms” on page 43.  
POST detected an error  
and displayed numeric  
error codes.  
“Symptom-to-FRU  
Index” on page 38, and  
then go to “Numeric  
Error Codes” on  
page 38.  
The diagnostic test  
detected an error and  
displayed a FRU code.  
“FRU Codes” on  
page 53.  
Other symptoms (such  
as LCD monitor  
problems).  
“Symptom-to-FRU  
Index” on page 38, and  
then go to “Other  
Symptoms” on page 47.  
IBM ThinkPad 380XD, 385XD (2635) 25  
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Audio Checkout  
1. Go to the diagnostic menu by selecting Test in the  
Easy-Setup menu.  
2. Select Audio and run the diagnostic tests.  
3. If the test detects an audio problem, replace the  
system board.  
Diskette Drive Checkout  
This checkout is to isolate the problem to a controller,  
drive, or diskette. A write-enabled, blank, formatted 2HD  
diskette is required.  
FDD-1 represents a diskette drive in the ThinkPad  
computer.  
Attention  
Make sure that the diskette does not have more than  
one label on its surface. Inserting diskettes with  
multiple labels into the drive can damage it.  
Take the following procedure to select the test device:  
1. Click on Test in the Easy-Setup menu.  
2. Press Ctrl+A to enter the advanced diagnostic menu.  
The ThinkPad FRU Connections window appears.  
3. Click on Exit The keyboard layout appears on the  
screen.  
4. Click on Exit.  
5. Click on FDD-1.  
6. Type Y (Yes) to the question that appears on the  
screen. Insert a blank diskette into the drive when  
instructed.  
7. Press Enter to run the diskette drive test.  
a. If the controller test detects an error and FRU  
code 10 appears, replace the system board.  
b. If the controller test runs without any errors, the  
drive read/write tests start automatically.  
c. If the drive read/write test detects an error and  
either FRU code 50 for FDD-1 appears, replace  
the drive.  
If the drive is attached to a port replicator, go to  
“Port Replicator Checkout” on page 33 to isolate  
the replicator. Otherwise, go on to the next step.  
8. If the drive is attached through a port replicator, go to  
the service manual of the port replicator to isolate the  
problem.  
9. If no error occurs when you test the formatted  
diskette, suspect the diskette that the customer used  
when reporting the problem.  
26 IBM ThinkPad 380XD, 385XD  
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Fan Checkout  
To check the fan, listen for the fan. If you cannot hear it  
running at power-on, replace the fan. If you can hear it  
running but not steadily, do the diagnostic test.  
1. Start Easy-Setup.  
2. Click on Test.  
3. Press Ctrl+A to enter the advanced diagnostic mode.  
The ThinkPad Connection windows appear.  
4. Click on Exit. The keyboard layout appears on the  
screen.  
5. Click on Exit.  
6. Click on System Board then press Enter to run the  
test.  
Follow the instructions that appear on the screen. If  
the test detects a fan problem, replace it.  
Keyboard or Auxiliary Input Device  
Checkout  
Remove any external keyboard before testing the built-in  
keyboard.  
If the keyboard does not work or an unexpected character  
appears, make sure that the flexible cable extending from  
the keyboard is correctly seated in the connector on the  
DC/DC card.  
If the keyboard cable connection is correct, check the  
DC/DC card.  
If the tests do not detect a keyboard problem, run the  
keyboard test by doing the following:  
1. Go to the diagnostic menu by selecting Test in the  
Easy-Setup menu.  
2. Press Ctrl+A to enter to the advanced diagnostic  
mode.  
The ThinkPad FRU Connections window appears. (If  
Ctrl+A does not work, triple-click on the icon on the  
right bottom corner of the basic diagnostic window.)  
3. Make sure that the keyboard connection is  
Connected; then press Esc to exit the screen.  
A layout of the keyboard appears on the screen.  
4. Check that when each key is pressed, the key's  
position on the keyboard layout on the screen  
changes to a black square.  
Note: When the Fn key is pressed, a black square  
appears briefly.  
5. Press Ctrl+Pause to end the test.  
If the tests detect a keyboard problem, do the following  
one at a time:  
Warning: Do not replace a nondefective FRU.  
Ÿ
Ÿ
Reseat the keyboard cables.  
Replace the DC/DC card.  
IBM ThinkPad 380XD, 385XD (2635) 27  
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Ÿ
Replace the system board.  
Auxiliary Input Devices: The following auxiliary  
input devices are supported:  
Ÿ
Ÿ
Ÿ
Numeric keypad  
Mouse (PS/2 compatible)  
External keyboard (with keyboard/mouse cable)  
If any of these devices do not work, reseat the cable  
connector and repeat the failing operation.  
If the problem remains, replace the device, and then the  
system board.  
Memory Checkout  
DIMMs are available for increasing memory capacity.  
DIMM  
Displayed Value  
32192 KB  
No DIMM installed  
8 MB  
40384 KB  
16 MB  
48576 KB  
32 MB  
64960 KB  
64 MB  
97728 KB  
Memory errors may cause error messages to appear on  
the screen or may hang the operating system.  
Take the following procedure to isolate memory problems:  
1. Turn off the computer and remove any installed DIMM  
from the slot.  
2. Press and hold the F1 key; then turn on the  
computer. Hold the F1 key down until the  
Easy-Setup menu appears.  
3. Select Test and press Enter.  
4. Select Memory and press Enter to run the memory  
test for the base memory. If an error appears,  
replace the system board.  
5. Turn off the computer and reinstall the DIMM; then  
turn on the computer. Verify the memory size; then  
test the memory. If an error message appears,  
replace the DIMM.  
If a memory problem occur intermittently, perform the loop  
option test. If the test detects an error, it prints an error  
log on a printer connected to the parallel port. See  
“Displaying the Error Log” on page 50 for more  
information.  
Flash Memory Update: System setup programs and  
diagnostic tests are stored in the flash memory. A flash  
memory update is required when:  
Ÿ
Ÿ
A new version of the system program is installed.  
A new features or options is added to the computer.  
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To update the flash memory, do the following:  
1. Obtain an appropriate diskette containing the update.  
2. Insert the System Program Service diskette into drive  
A, and turn on the computer with ac power or a fully  
charged battery.  
3. Select Update system programs from the menu.  
Power Systems Checkout  
To determine whether a power systems problem is due to  
the AC Adapter or the battery, do the following:  
1. Remove the battery.  
2. Connect the AC Adapter and check that power is  
supplied.  
3. Disconnect the AC Adapter and install the charged  
battery; then check that power is supplied by the  
battery.  
Ÿ
If the problem is due to the AC Adapter, go to “AC  
Adapter Checkout”  
Ÿ
If the problem is due to the battery, go to “Battery  
Checkout” on page 30  
If the problem is not due to the AC Adapter or the  
battery, go to “Backup Battery Checkout  
(Nonrechargeable)” on page 31  
AC Adapter Checkout: This checkout is used only  
when the computer fails under ac power.  
Ÿ
If the problem occurs only when the AC Adapter is  
used with a port replicator, replace the replicator.  
If the power-on indicator does not turn on, check the  
power cord of the AC Adapter for conductivity and  
installation.  
Ÿ
1. Unplug the AC Adapter cable from the computer and  
measure the output voltage at the cable plug. See  
the following figure:  
Pin  
1
Voltage (V dc)  
+15.5 to +17.0  
Ground  
2
a. If the voltage persists, go to the next step.  
b. If the voltage is correct, make sure the  
connection between the DC/DC card and the  
system board is not loose.  
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c. Replace the DC/DC card.  
d. If the problem is not corrected, replace the  
system board.  
e. If the problem persists, go to “Undetermined  
Problems” on page 48.  
2. Unplug the AC Adapter cable from the ac power  
outlet and wait 5 minutes or longer to allow the  
overvoltage protection circuit to be fully discharged  
and initialized.  
3. Plug the AC Adapter cable into the ac power outlet.  
4. Measure the output voltage of the AC Adapter.  
5. If the voltage is still not correct, replace the AC  
Adapter.  
Note: An audible noise from the AC Adapter does not  
always indicate a defect.  
Battery Checkout: If the error is due to the battery,  
do the following:  
1. Turn off the computer.  
2. Remove the battery and measure the voltage  
between the battery terminals 1 (+) and 4 ().  
Terminal  
Voltage (V dc) / Signal  
+0 to +13.5  
1
4
Ground ()  
Note: Signal lines not used in these steps are used  
for communication between the system and  
the battery.  
3. If the voltage is less than +11.0 V dc, the battery has  
been discharged. Recharge the battery.  
If the voltage is still less than +11.0 V dc after  
recharging, replace the battery.  
Note: The voltage of the battery could show 0 V  
because of the overdischarge protection  
circuit. Try to trickle charge the battery by  
attaching it to the computer with the AC  
adapter.  
30 IBM ThinkPad 380XD, 385XD  
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4. If the voltage is more than +11.0 V dc, measure the  
resistance between the battery terminals 3 and 4.  
The resistance must be 4 to 30 K ohms.  
If the resistance is not correct, replace the battery.  
If the resistance is correct, replace the DC/DC card.  
Checking Operational Charging  
Note  
Battery charging will not start unless the Fuel-Gauge  
is below 95%. At below 95%, the battery will start  
charging to 100% of its capacity. This limitation  
protects the battery from overcharging and also  
prolongs its life.  
To check the operational charging, install a fully  
discharged battery or a battery that is less than 50%  
charged.  
Turn on the computer while it is connected to the AC  
Adapter. If the battery status indicator does not turn on,  
turn off the computer, remove the battery, and let the  
battery return to room temperature. Reinstall the battery,  
and turn on the computer (still connected to the AC  
Adapter). If the charge indicator still does not turn on,  
replace the battery.  
Backup Battery Checkout  
(Nonrechargeable)  
1. Turn off the computer and unplug the AC Adapter  
from the computer.  
2. Open the Memory-slot cover.  
3. Remove the backup battery. (Refer to “1010 DIMM  
Card and Backup Battery” on page 62 to remove the  
battery.)  
4. Measure the voltage of the backup battery connector.  
Wire  
Red  
Voltage (V dc)  
+2.5 to +3.7  
Ground  
Black  
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Ÿ
Ÿ
If the voltage is correct, replace the system board.  
If the voltage is not correct, the backup battery has  
been discharged. Replace the backup battery.  
If the backup battery discharges quickly after  
replacement, replace the system board.  
Ÿ
Status Indicator Checkout  
If an LED problem occurs, do the following:  
1. Turn off the computer.  
2. Turn on the computer.  
3. All the LEDs in the indicator panel should turn on for  
a moment soon after the computer is powered on.  
Make sure they turn on.  
If the problem persists, replace the system board.  
System Board and CPU Card Checkout  
The system board and the CPU Card FRUs perform the  
operation on the computer. Processor problems can be  
caused by either FRU. Generally, the CPU Card has a  
lower failure rate. If a numeric code indicates the system  
board or the CPU Card as failing, do the following  
procedure to isolate the problem:  
1. Run the system board test to verify the symptom.  
This test verifies both the system board and the CPU  
Card. If no error is detected, return to “Undetermined  
Problems” on page 48.  
Note: Do not touch the keyboard and the pointing  
device when the system board is being tested.  
This might cause unexpected errors.  
2. If FRU code 10 appears, replace the system board,  
but do not replace the CPU Card. Transfer the CPU  
Card from the old system board to the new system  
board.  
3. If FRU code 11 appears, reseat the CPU Card.  
4. Rerun the test to verify the fix.  
5. If FRU code 11 remains, replace the CPU Card.  
If this procedure does not correct the problem, go to  
“Undetermined Problems” on page 48.  
TrackPoint III Checkout  
If the TrackPoint III does not work, do the following:  
1. Run the ThinkPad Configration program and check if  
the configuration of the TrackPoint III is enabled.  
2. If it is not, select Enable and enable it.  
3. If you still have a problem, continue to the next step.  
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Drifting Pointer  
There may be cases when the pointer drifts for a  
short while on the screen, this is not a hardware  
problem. This movement can occur when a  
slight, steady pressure is applied to the  
TrackPoint III pointer. No service action needs  
be taken.  
4. Go to the Easy-Setup menu.  
5. Move to an item with the pointing stick.  
6. Press any one of the two click buttons.  
7. Verify that the item is selected.  
8. Verify that all buttons work correctly.  
9. If the problem still persists, do the following one at a  
time:  
Warning: Do not replace a nondefective FRU.  
Ÿ
Ÿ
Ÿ
Ÿ
Reseat the TrackPoint III cable.  
Replace the keyboard.  
Replace the DC/DC card.  
Replace the system board.  
Optional Device Checkout  
If you suspect an optional device problem, do either of the  
following:  
Ÿ
Ÿ
“Port Replicator Checkout”  
“External Monitor Self-Test”  
Port Replicator Checkout  
Do the following procedures to isolate a port replicator  
problem. A port replicator attaches to the system  
expansion connector at the rear of the computer.  
1. Turn off the computer.  
2. Remove the failing devices from the replicator.  
3. Unplug the AC adapter from the replicator, if  
attached.  
4. Remove the port replicator from the computer.  
5. Reconnect the failing device directly to the computer.  
(If another device is already connected to the  
computer, remove it first.)  
6. Go to the “Running the Diagnostics” on page 49 and  
run the diagnostics.  
7. If the advanced diagnostic device test does not find  
an error, suspect a problem with the port replicator of  
the system expansion bus.  
8. Turn off the computer and reconnect the port  
replicator.  
9. Turn on the computer and run the following advanced  
diagnostic tests:  
Ÿ
Serial port test with the wrap plug installed on  
the replicator  
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Ÿ
Parallel port test with the wrap plug installed on  
the replicator  
10. If diagnostic errors appear, replace the replicator or  
diskette drive attachment unit.  
If the problem remains after the replacement, replace  
the system board.  
11. If power problems appear only when the replicator is  
used, replace the replicator.  
External Monitor Self-Test  
If a monitor problem occurs only when an external monitor  
is connected, do the following:  
Note: Before you replace a monitor:  
Ÿ
Check that the 95XX systems support either  
63XX, 85XX, or 95XX displays.  
Ÿ
Make sure that the external monitor is  
properly connected to the computer.  
If the screen is rolling, replace the external monitor. If that  
does not correct the problem, replace the FRUs in the  
following order:  
1. System board  
2. Bus adapter (if used)  
If the screen is not rolling, run the monitor self-test as  
follows:  
1. Power-off the computer and monitor.  
2. Disconnect the monitor signal cable.  
3. Power-on the monitor  
4. Set the contrast to its maximum position.  
5. Set the brightness control to the center detent  
position.  
Check the following conditions:  
Ÿ
Ÿ
Ÿ
The screen contrast and brightness control are  
adjustable.  
The screen is either white or light gray, with a black  
margin (test margin).  
The screen is set to CRT or both on the ThinkPad  
Configration program.  
Note: The location of the test margin may vary with  
the type of monitor. It can be either at the top  
and/or bottom, or left and/or right of the  
screen.  
If you do not see a test margin on the screen, replace the  
monitor. If there is a test margin on the screen, replace  
the system board.  
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Power Management Features  
Three power management modes are provided by the  
computer to reduce power consumption and to prolong  
battery life.  
Standby Mode: In standby mode, the following  
occurs:  
Ÿ
Ÿ
The LCD backlight turns off.  
The hard disk drive motor stops.  
The following events cause the computer to enter standby  
mode:  
Ÿ
Ÿ
Standby is requested by the Fn key (Fn+F3).  
There is inactivity under auto-standby mode set by  
the ThinkPad Configration program.  
The computer exits standby mode and resumes operation  
when any key is pressed.  
Suspend Mode: In suspend mode, the following  
occurs:  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
The LCD backlight turns off.  
The hard disk drive motor stops.  
The LCD is powered off.  
The hard disk drive is powered off.  
The CPU stops.  
The following events cause the computer to enter suspend  
mode:  
Ÿ
Ÿ
Ÿ
Suspend mode is requested by the Fn key (Fn+F4).  
The LCD is closed.  
A time-out occurred on the following devices:  
Keyboard  
TrackPoint III  
Hard disk drive  
Parallel connector  
Diskette drive  
AC Adapter  
The duration of inactivity is specified in Suspend  
Timer of the ThinkPad Configration program.  
The battery power is low and the orange battery  
power indicator blinks.  
Either the PS2 OFF or the PS2 SUSpend command  
is set in the ThinkPad Configration program.  
Ÿ
Ÿ
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Notes:  
1. To disable suspend mode, set the mode to “Will  
not suspend even if LCD is closed.” in the  
ThinkPad Configration program.  
2. If the computer is being powered by ac power  
and a communication PC Card is being used, the  
computer enters standby mode instead of  
entering the normal suspend mode, and the PC  
Card and application programs remain active.  
3. The computer will not enter suspend mode when  
a communication link is active.  
The following events cause the computer to return from  
suspend mode to normal operation:  
Ÿ
Ÿ
Ÿ
The LCD is opened.  
The real time clock alarm is signaled.  
The ring indicator (RI) is signaled by a serial device  
or a PC Card device.  
Ÿ
Ÿ
The Fn key is pressed.  
An external keyboard key is pressed while the  
computer is operating with ac power.  
The computer exits suspend mode and enters hibernation  
mode when a preset timer condition is satisfied.  
Hibernation Mode: In hibernation mode, the  
following occurs:  
Ÿ
The system status, RAM, VRAM, and setup data are  
stored on the hard disk.  
Ÿ
The computer is powered off.  
Notes:  
The computer cannot enter hibernation mode if it is  
being powered by ac power and a communication PC  
Card is used.  
The following events cause the computer to enter  
hibernation mode:  
Ÿ
Hibernation mode is requested by the Fn key  
(Fn+F12).  
Ÿ
Ÿ
Ÿ
Timer conditions are satisfied in suspend mode.  
A critically low battery condition occurs.  
The PS2 HIBernation command is set in the  
ThinkPad Configration program.  
The computer exits hibernation mode and resumes  
operation when the power-on switch is pressed. When  
power is turned on, the hibernation file in the boot record  
on the hard disk drive is read and system status is  
restored from the hard disk drive.  
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Port Replicator Power Overload: If a power  
shutdown occurs intermittently when PC Card devices are  
used with a port replicator, suspect an over-current  
problem. Some PC Card devices use much power, and if  
at some point the required power exceeds the allowed  
power, a power shutdown occurs. Isolate this problem to a  
device by removing each device simultaneously and then  
using the computer under the same condition as when the  
power shutdown occurred. This will determine which  
device is causing the overload.  
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Symptom-to-FRU Index  
The Symptom-to-FRU Index lists the symptoms and errors  
and the possible causes. The most likely cause is listed  
first.  
Note: Perform the FRU replacement or actions in the  
sequence shown in the “FRU/Action” columns. If a  
FRU replacement did not solve the problem, put  
the original part back in the computer. Do not  
replace a nondefective FRU.  
This index can also help you determine the next possible  
FRUs to be replaced when servicing a computer.  
Numeric error codes show the errors detected in POST or  
system operation. In the following error codes, X can be  
any number.  
If no codes are available, use narrative symptoms.  
If the symptom is not listed, go to “Undetermined  
Problems” on page 48.  
Note: For IBM devices not supported by diagnostic  
codes in the ThinkPad notebook computers,  
see the manual for that device.  
Numeric Error Codes  
Symptom / Error  
FRU / Action in Sequence  
System board  
10X  
101: Interrupt failure.  
102: Timer failure.  
103: Timer interrupt  
failure.  
104: Protected mode  
failure.  
105: Last 8042  
command not  
accepted.  
107: NMI test failure.  
108: Timer bus test  
failure.  
109: Low meg-chip  
select test.  
110  
(Planar parity.)  
1. Go to “Memory  
Checkout” on  
page 28.  
2. DIMM  
3. Detach the expansion  
unit if it is attached to  
the computer.  
4. System board  
38 IBM ThinkPad 380XD, 385XD  
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Symptom / Error  
FRU / Action in Sequence  
111  
(I/O parity.)  
1. Go to “Memory  
Checkout” on  
page 28.  
2. Port replicator  
3. System board  
158  
Set the password for hard  
disk drive.  
(Hard disk password is not  
set even though the  
supervisor password is set.)  
159  
Set the correct password  
for hard disk drive.  
(Hard disk password is not  
set the same as the  
supervisor password.)  
161  
1. Go to “Backup  
Battery Checkout  
(Nonrechargeable)”  
on page 31.  
(Dead battery.)  
2. Backup battery  
3. System board  
163  
1. Set time and date.  
(Time and date were not  
set.)  
2. System board  
173  
1. Select OK in the error  
screen; then set the  
time and date.  
(Configuration data was  
lost.)  
2. Backup battery  
3. System board  
174  
1. Check device  
configuration.  
2. Hard disk drive  
3. System board  
(Configuration error:  
Perform“Checking the  
Installed Devices List” on  
page 50 before changing  
any FRUs.)  
175, 177, 178  
System board  
175: EEPROM CRC  
#1 error.  
177: Supervisor  
password check sum  
error.  
178: EEPROM is not  
functional.  
183  
Have the user examine  
the password.  
(Incorrect password entered  
at the supervisor password  
prompt.)  
184  
Reset the power-on  
(Power-on password check  
sum error.)  
password in Easy-Setup.  
185  
Reset the start-up  
(The start-up sequence is  
not valid. Probably the  
computer was powered off  
when the start-up sequence  
was being updated.)  
sequence in Easy-Setup.  
IBM ThinkPad 380XD, 385XD (2635) 39  
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Symptom / Error  
186  
FRU / Action in Sequence  
System Board  
190  
Go to “Battery Checkout”  
on page 30.  
(A depleted battery pack  
was installed when the  
power was on.)  
191XX  
System board  
(PM initialization error.)  
192  
1. Fan  
(Fan error)  
2. System board  
195  
Check if the configuration  
was changed.  
For example, check if the  
DIMM is added.  
(The configuration read from  
the hibernation data storage  
area does not match the  
actual configuration.)  
196  
1. Run the hard disk  
drive test.  
2. Hard disk drive  
(A read error occurred in the  
hibernation area of the hard  
disk drive.)  
199XX  
System board  
(Resume error.)  
1XX  
System board  
225  
1. Check if a supported  
DIMM is installed.  
2. DIMM Card  
(Unsupported memory  
module)  
3. System board  
2XX  
1. Go to “Memory  
Checkout” on  
page 28.  
2. DIMM  
3. System board  
201: Memory data  
error.  
202: Memory line error  
00–15.  
203: Memory line error  
16–23.  
205: Memory test  
failure on on-board  
memory.  
221: ROM to RAM  
remap error.  
301, 303, 304, 305, 3XX  
(301: Keyboard error.)  
1. Go to “Keyboard or  
Auxiliary Input  
Device Checkout” on  
page 27.  
2. Keyboard  
3. External numeric  
keypad  
4. External keyboard  
5. Keyboard/mouse cable  
6. DC/DC card  
7. System board  
40 IBM ThinkPad 380XD, 385XD  
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Symptom / Error  
FRU / Action in Sequence  
601, 6XX  
(601: Diskette drive or  
controller error.)  
1. Go to “Diskette Drive  
Checkout” on  
page 26.  
2. CD-ROM and FDD  
assembly  
3. Diskette  
4. System board  
602  
1. Go to “Diskette Drive  
Checkout” on  
page 26.  
(Diskette read error.)  
2. Diskette  
3. CD-ROM and FDD  
assembly  
604  
1. Go to “Diskette Drive  
Checkout” on  
page 26.  
2. CD-ROM and FDD  
assembly  
(An unacceptable ID was  
read from the diskette  
drive.)  
3. System board  
11XX  
1. Serial device  
1101: Serial_A test failure.  
2. Communication cable  
3. System board  
12XX  
1. System board  
1201: Serial_B test failure.  
(infrared)  
17XX  
1. Hard disk drive  
2. System board  
1701: Hard disk  
controller failure.  
1780, 1790: Hard disk  
0 error.  
1781, 1791: Hard disk  
1 error.  
24XX  
System board  
(2401: System board video  
error.)  
808X  
1. PC Card slot  
assembly  
2. PCMCIA device  
3. System board  
8081: PCMCIA  
presence test failure.  
(PCMCIA revision  
number also checked.)  
8082: PCMCIA  
registration test failure.  
860X  
1. External mouse  
2. External keyboard  
3. System board  
(Pointing device error when  
TrackPoint III is disabled.)  
8601: System bus  
error–8042 mouse  
interface.  
8602: External mouse  
error.  
8603: System bus  
error or mouse error.  
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Symptom / Error  
FRU / Action in Sequence  
861X  
1. Reseat the keyboard  
cable on the DC/DC  
card  
(Pointing device error when  
TrackPoint III is enabled.)  
2. Keyboard  
8611: System bus  
error–I/F between 8042  
and IPDC.  
8612: TrackPoint error.  
8613: System board or  
TrackPoint error.  
3. External mouse  
4. DC/DC card  
5. System board  
I9990301  
I9990302  
I9990305  
1. Check that the  
operating system is  
installed in the hard  
disk drive. If not,  
install the operating  
system.  
I9990301: Hard disk  
error.  
I9990302: Invalid hard  
disk boot record.  
I9990305: No bootable  
device.  
2. Reseat the boot  
device.  
3. Check the start-up  
sequence for the  
correct boot device.  
4. Check that the  
operating system boots  
correctly.  
I9990303  
System board  
(Bank–2 flash ROM check  
sum error.)  
Other codes not listed  
above.  
Go to “Undetermined  
Problems” on page 48.  
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Beep Symptoms  
Symptom / Error  
FRU / Action in Sequence  
System board  
Continuous beeps.  
One beep and a blank,  
unreadable, or flashing  
LCD.  
1. Reseat the LCD  
connector  
2. LCD assembly  
3. System board  
One beep, and the message  
“Unable to access boot  
source” appears.  
1. Boot device  
2. System board  
One long and two short  
beeps, and a blank or an  
unreadable LCD.  
1. System board  
2. LCD assembly  
One long beep followed by  
four short beeps each time  
the power switch is  
Connect the AC Adapter  
or install a fully charged  
battery.  
operated.  
(System cannot turn on due  
to low battery voltage.)  
One beep every second.  
(System is shutting down  
due to low battery voltage.)  
Connect the AC Adapter  
or install a fully charged  
battery. (Allow the  
system to completely shut  
down before changing the  
battery.)  
Two short beeps with error  
codes.  
POST error. See  
“Numeric Error Codes” on  
page 38.  
Two short beeps and a  
blank screen.  
System board  
No Beep Symptoms  
Symptom / Error  
FRU / Action in Sequence  
No beep, power-on indicator  
not on, and a blank LCD  
during POST.  
1. Go to “Power  
Systems Checkout”  
on page 29.  
2. DC/DC card  
3. System board  
4. CPU Card  
5. Check the power outlet  
No beep, power-on indicator  
on, and a blank LCD during  
POST.  
1. DC/DC card  
2. System board  
3. CPU Card  
No beep, power-on indicator  
on, and a blinking cursor  
only during POST.  
1. DC/DC card  
2. CPU Card  
3. System board  
No beep during POST but  
the system runs correctly.  
1. Turn the volume up  
and check the  
speaker.  
2. Speaker  
3. System board  
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Function-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The system does not  
suspend or resume when  
the LCD is closed or  
opened.  
1. Go to “Suspend  
Mode” on page 35,  
and check that the  
computer can enter  
suspend mode.  
2. Boot an operating  
system and press  
Fn+F4. If the  
computer enters  
suspend mode,  
suspect that the  
application program is  
not working properly.  
3. LCD assembly  
4. System board  
The battery Fuel-Gauge  
does not go higher than  
90%.  
Go to “Battery Checkout”  
on page 30 and see the  
note.  
The memory count (size)  
appears different from the  
actual size.  
Go to “Memory Checkout”  
on page 28.  
The system configuration  
does not match the installed  
devices.  
Go to “Checking the  
Installed Devices List” on  
page 50.  
The system hangs  
intermittently.  
Go to “Intermittent  
Problems” on page 47.  
Indicator-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The indicator incorrectly  
remains off or on, but the  
system runs correctly.  
1. System board  
2. DC/DC card  
The battery power status  
indicator blinks from green,  
yellow, to orange.  
1. Check that a correct  
battery is installed.  
2. Battery pack  
3. DC/DC card  
4. System board  
The battery indicator does  
not turn on when the battery  
is installed.  
1. DC/DC card  
2. Battery pack  
3. System board  
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Infrared-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
Unable to communicate  
using the Infrared (IR) Port.  
1. Make sure the setup  
for the IR is correct.  
Use the ThinkPad  
Configurations utility.  
2. Make sure there are  
no fluorescent lights  
near the computer.  
The computer may  
receive optical noise  
from the fluorescent  
light.  
3. Run the advanced  
diagnostic test. If an  
error occurs and a  
FRU code is displayed,  
replace the parts  
shown by the FRU  
code.  
Keyboard- or TrackPoint III-Related  
Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The keyboard (one or more  
keys) does not work.  
1. Reseat the keyboard  
cable on the DC/DC  
card.  
2. Keyboard  
3. System board  
The TrackPoint III does not  
work.  
1. Reseat the keyboard  
cable on the DC/DC  
card.  
2. Go to “TrackPoint III  
Checkout” on page 32.  
3. Keyboard  
4. System board  
The pointer moves  
automatically or does not  
work correctly.  
See “TrackPoint III  
Checkout” on page 32.  
IBM ThinkPad 380XD, 385XD (2635) 45  
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LCD-Related Symptoms  
Important  
The TFT LCD for the notebook computer contains  
over 921,000 thin-film transistors (TFTs). A small  
number of missing, discolored, or lighted dots (on all  
the time) is characteristic of TFT LCD technology, but  
excessive pixel problems can cause viewing concerns.  
The LCD should be replaced if the number of missing,  
discolored, or lighted dots in any background is 21 or  
more.  
Symptom / Error  
FRU / Action in Sequence  
No beep, power-on indicator  
on, and a blank LCD during  
POST.  
1. Reseat the CPU Card  
2. DC/DC card  
3. System board  
1. LCD backlight not  
working.  
1. Reseat the LCD  
connectors.  
2. LCD too dark.  
3. LCD brightness cannot  
be adjusted.  
2. LCD assembly  
3. System board  
4. LCD contrast cannot  
be adjusted.  
1. The LCD screen is  
unreadable.  
2. Some pels missing in  
characters.  
3. The screen is  
abnormal.  
4. Wrong color displayed.  
1. See important note  
for “LCD-Related  
Symptoms.”  
2. Reseat all LCD  
connectors.  
3. LCD assembly  
4. System board  
LCD has extra horizontal or  
vertical lines displayed.  
LCD assembly  
Peripheral-Device-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The external monitor does  
not work correctly.  
Connect the external  
monitor to another PC. If  
the monitor works fine,  
replace the system board.  
If not, replace the external  
monitor.  
Printer problems.  
1. Run printer self-test.  
2. Parallel port wrap test.  
3. System board  
4. Printer cable  
(See the printer manual for  
the above tests.)  
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Symptom / Error  
FRU / Action in Sequence  
Serial or parallel port device  
problems.  
1. Run serial or parallel  
port wrap test. (See  
the device manual for  
the test.)  
2. Device  
3. System board  
4. Device cable  
Power-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
Power shuts down during  
operation.  
1. Go to “Power  
Systems Checkout”  
on page 29.  
2. Battery pack  
3. Remove the battery  
pack and let it cool for  
2 hours.  
4. DC/DC card  
5. System board  
6. Check the power  
outlet.  
The system does not power  
off.  
(See “Power Shutdown  
Switch” on page 22.)  
1. Press the power  
shutdown switch.  
2. DC/DC card  
3. System board  
Other Symptoms  
Symptom / Error  
FRU / Action in Sequence  
Errors occur only when the  
port replicator is used.  
See “Port Replicator  
Checkout” on page 33.  
PC Card slot pin is  
damaged.  
PC Card slots assembly.  
Note: If you cannot find a symptom or an error in this list  
and the problem remains, see “Undetermined  
Problems” on page 48.  
Intermittent Problems  
Intermittent system hang problems can be caused by a  
variety of reasons that have nothing to do with a hardware  
defect, such as: cosmic radiation, electrostatic discharge,  
or software errors. FRU replacement should be  
considered only when a recurring problem exists.  
When analyzing the intermittent problem, do the following:  
1. Run the advanced diagnostic test for the system  
board in loop mode at least 10 times.  
2. If no error is detected, do not replace any FRUs.  
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3. If any error is detected, replace the FRU shown by  
the FRU code. Rerun the test to verify that no more  
errors exist.  
Undetermined Problems  
You are here because the diagnostic tests did not identify  
which adapter or device failed, installed devices are  
incorrect, a short circuit is suspected, or the system is  
inoperative. Follow these procedures to isolate the failing  
FRU (do not isolate nondefective FRUs).  
Verify that all attached devices are supported by the  
computer.  
Verify that the power supply being used at the time of the  
failure is operating correctly. (See “Power Systems  
Checkout” on page 29):  
1. Turn off the computer.  
2. Visually check them for damages. If any problems  
are found, replace the FRU.  
3. Remove or disconnect all of the following devices:  
a. Non-IBM devices  
b. Devices attached to the port replicator  
c. Printer, mouse, and other external devices  
d. Battery pack  
e. Hard disk drive  
f. CD-ROM and FDD  
g. DIMM  
h. PC Cards  
4. Turn on the computer.  
5. Determine if the problem is solved.  
6. If the problem is solved, reconnect the removed  
devices one at a time until you find the failing FRU.  
7. If the problem remains, replace the following FRUs  
one at a time. Do not replace a nondefective FRU.  
a. System board  
b. DC/DC card  
c. LCD assembly  
d. CPU Card  
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Running the Diagnostics  
Use either TrackPoint III or the cursor move keys to  
interact with the tests.  
The following table lists the special tools used in the  
diagnostics:  
Tool Name  
Part Number  
35G4703  
PC test card  
Tri-Connector wrap plug  
USB parallel test cable  
72X8546  
05K2580  
Use either TrackPoint III or the cursor move keys to  
interact with the tests. The Enter key works in the same  
way as when selecting the OK icon to reply OK.  
1. Press and hold F1; then turn on the computer. Hold  
F1 down until the Easy-Setup menu appears.  
2. Click on Test. The basic diagnostic menu appears.  
3. Click on a device to run the test. The test progress  
window appears; then OK appears under the tested  
device icon when the test ends without any errors.  
4. Start the Advanced Diagnostic test by pressing  
Ctrl+A on the basic diagnostic menu. The ThinkPad  
FRU connections window appears.  
5. Click on Exit or press the Esc key. The keyboard  
test window appears.  
6. When you press a key, a mark appears or disappears  
on the corresponding key position on the screen.  
Repeat this step for any key that needs to be tested.  
You can run the keyboard test if you press the Ctrl+K  
keys at the advanced diagnostic menu.  
7. To exit the keyboard test, click on Exit or press the  
Ctrl+Break keys. The Advanced Diagnostics menu  
appears.  
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8. Click on a device to test, or click on Test All to test  
all devices.  
Click on Looptest to run the tests in a repeated loop.  
The loop option menu appears. Click on a device; a  
mark appears beside the selected device. Repeat  
this step to select multiple devices. Click on OK to  
start the diagnostic loop. If no device is selected, all  
devices tests are looped.  
9. To exit the loop, keep pressing Ctrl+Pause. A beep  
sounds to notify that exit interrupt is sensed by the  
test program. Press Esc to exit from the loop test.  
PC Card (PCMCIA) Slots Test  
The green LED on the PC test card (P/N 35G4703) turns  
on when the PC Card (PCMCIA) slot test is running. If the  
LED does not turn on, check that the card is installed  
correctly by reseating it. If the LED still does not turn on  
after the card is reseated, try using another slot for the  
test. If the LED still does not turn on and the test fails,  
replace the FRU shown by the diagnostic error code.  
Universal Serial Bus (USB) Test  
At the advanced diagnostic test menu, connect the USB  
parallel test cable (P/N 05K2580) to the computer. Click  
on the USB icon to run the test. Follow the instructions on  
the screen. OK appears if the test passes and three lines  
of error codes appear if the test fails. The defective FRU  
must be the DC/DC card or the system board.  
Use cable number 2 for an external USB port on the port  
replicator.  
Displaying the Error Log  
Diagnostic errors are printed on a printer that is attached  
to the parallel port when the error is detected. The error is  
also logged in the system memory.  
Use the following procedures to display the errors:  
1. Enter the advanced diagnostic test.  
2. Press Ctrl+E.  
3. The error log appears.  
4. To exit the window, click on Exit or press Esc key.  
The error log is not saved when the system power is  
turned off.  
Checking the Installed Devices List  
If a device is installed but its icon appears in gray shade  
rather than in dark shade on the basic diagnostics test  
menu, the device is defective. Reseat the device  
connectors. If the symptom remains, replace the device or  
the system board. If needed, adjust the contrast control to  
clearly distinguish the shades of the icon.  
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If a device that is not installed appears in dark shade (for  
example, FDD-2 appears in dark shade when no second  
FDD is installed), do the following:  
1. Replace the first device in the configuration, such as  
an FDD-1.  
2. If the problem persists, replace the system board.  
The Parallel, and Serial icons are always displayed in dark  
shade, because the icons represent subsystems of the  
system board, not the attachment of devices.  
The FDD-1 icon represents the first drive in the system  
configuration for each type of device. The FDD-2 icon  
represents the second drive, attached through a port  
replicator.  
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Diagnostic Error Codes  
If an error is detected, the following appears:  
Ÿ
Ÿ
Ÿ
Ÿ
Large X on the left side of the device icon.  
Device ID (three digits)  
Error code (two digits)  
FRU code (four digits)  
For example:  
The device ID and error code indicate the detailed portion  
of the FRU that caused the error. If replacing a FRU does  
not correct the problem, see the device ID or error code  
from the previous failure. If they changed, the new FRU  
might be defective, or it may have been incorrectly  
installed.  
Device ID: If an error is detected by the diagnostic  
tests, a three-digit device ID is displayed, indicating the  
suspected device.  
Icon  
Device  
ID  
Suspected Device  
001  
003  
007  
086  
002  
System board  
Keyboard  
Math coprocessor  
Pointing device  
Memory  
050  
054  
Display  
Display  
017  
006  
Hard disk drive  
Built-in FDD  
066  
080  
1. External diskette drive  
2. FDD connector of the  
port replicator  
1. PC card slot connector  
2. PC Card  
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Icon  
Device  
ID  
Suspected Device  
088  
External PC Card  
009  
011  
215  
103  
Parallel  
Serial  
CD-ROM  
IR  
153  
154  
155  
Audio (Crystal)  
USB port  
Audio  
USB port of the port  
replicator  
FRU Codes: If an error is detected by the diagnostic  
tests, a four-digit FRU code is displayed. The FRU code  
indicates two suspected FRUs. Replace the FRU that is  
indicated by the two leftmost digits first; then replace the  
FRU that is indicated by the two rightmost digits. No  
FRU is assigned to code 00. If only one FRU is  
suspected, the other FRU code digits are filled with zeros.  
See the reference page before replacing the FRU.  
FRU Code  
FRU  
10  
11  
12  
20  
System board  
CPU Card  
DC/DC card  
Memory (see “Memory Checkout” on  
page 28)  
30  
32  
33  
34  
Reserved  
External keyboard  
External mouse  
AC Adapter  
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FRU Code  
FRU  
35  
36  
38  
40  
45  
50  
Speaker  
Battery in the battery bay  
Fan  
LCD unit  
External monitor  
1. Reseat the diskette drive (FDD-1).  
2. Reseat the external FDD cable on the  
video card.  
3. Diskette drive (FDD-1)  
51  
60  
1. Reseat the diskette drive (FDD-2).  
2. Diskette drive (FDD-2)  
1. Reseat the hard disk drive (HDD).  
2. Hard disk drive (HDD)  
70  
72  
PCMCIA-2 (replicator)  
1. Reseat the PC card slot assembly  
2. PC Card slot assembly  
73  
Port replicator  
Note: The device ID and error codes are used to indicate  
the detailed portion of the FRU that is causing the  
error. If replacing a FRU does not correct the  
problem, see the device ID or error code from the  
previous failure. If they changed, the new FRU  
might be defective, or it may have been incorrectly  
installed.  
If the problem persists even after the FRUs are replaced,  
go to “Undetermined Problems” on page 48.  
54 IBM ThinkPad 380XD, 385XD  
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Related Service Procedures  
This section provides information on the following:  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
“Status Indicators”  
“Password Combinations” on page 56  
“Running a Low-Level Format” on page 57  
“Maintenance Diskette Download” on page 57  
“Fn Key Combinations” on page 57  
Status Indicators  
The status indicators show the current computer status in  
different colors (green and orange):  
1
2
3
4
5
6
7
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Symbol  
Color  
Meaning  
.1/Battery  
Green  
The battery is  
fully charged.  
Orange  
The battery is  
charging.  
Blinking orange  
Orange  
The battery  
needs charging.  
.2/Hard Disk In  
Use  
Data is read  
from or written to  
the hard disk,  
diskette, or  
CD-ROM.  
.3/Numeric Lock  
Green  
The numeric  
keypad on the  
keyboard is  
enabled.  
.4/Caps Lock  
.5/Scroll Lock  
Green  
Green  
Caps Lock mode  
is enabled.  
Arrow keys can  
be used as  
screen-scroll  
function keys.  
.6/Suspend  
Green  
Suspend mode  
Mode  
Blinking Green  
Entering  
suspend mode  
or hibernation  
mode, or reusing  
normal  
operation.  
.7/Power On  
Green  
Power on  
Password Combinations  
The Model 380XD or 385XD supports the following  
passwords:  
Ÿ
Ÿ
Ÿ
Power-on password (POP)  
Hard disk password (HDP)  
Supervisor password (PAP)  
The password combinations are:  
Ÿ
When the POP is the same as one of the HDPs  
(HDP-1 or HDP-2), a POP prompt and an HDP  
prompt with different passwords appear.  
Ÿ
Ÿ
When the POP is not the same as any of the  
When the PAP is used, the HDP-1 or the HDP-2 is  
automatically enabled but the HDP prompt does not  
appear. The HDP-1 and HDP-2 are then set to the  
same password as the PAP.  
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Running a Low-Level Format  
Attention: Make sure the drive address to be formatted is  
correct. This procedure erases all information on the disk.  
Do the following to format the hard disk:  
1. Turn off the computer.  
2. Insert the ThinkPad Hardware Maintenance  
Diskette Ver 1.40 or later into diskette drive A and  
turn on the computer.  
3. Select Format the hard disk from the main menu.  
4. Select the drive from the menu.  
5. Follow the instructions on the screen.  
Maintenance Diskette Download  
You cannot get the maintenance diskette from the parts  
center, but you can download from the IBM internal web  
site.  
The following is the URL of the IBM internal Web site:  
http://pccbbs.raleigh.ibm.com/  
Fn Key Combinations  
The following table shows the Fn key and function key  
combinations and their corresponding functions.  
The Fn key works independently from the operating  
system. The operating system obtains the status through  
the system management interface to control the system.  
Fn +  
F1  
Description  
Reserved  
F2  
Fuel-Gauge monitor on or off  
Standby mode invocation  
Suspend mode invocation  
Reserved  
F3  
F4  
F5  
F6  
Reserved  
F7  
Switching between the LCD and an external  
monitor  
F8  
Switching between the screen expansion is  
on and off (no symbol on the key)  
F9  
Reserved  
Reserved  
F10  
F11  
Switching the power management mode  
(High Performance, Automatic, and  
Customized)  
F12  
Hibernation invocation  
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FRU Removals and Replacements  
This section contains information about removals and  
replacements.  
Ÿ
Do not damage any FRUs. Only certified and trained  
personnel should service the computer.  
Ÿ
The arrows in the “Removals and Replacements”  
section show the direction of movement to remove a  
FRU, or to turn a screw to release the FRU. The  
arrows are marked in numeric order, in square  
callouts, to show the correct sequence of removal.  
When other FRUs must be removed before the failing  
FRU is removed, they are listed in that order.  
To replace a FRU, reverse the removal procedure  
and follow any notes that pertain to replacement.  
See “Locations” for internal cable connections and  
arrangement information.  
Ÿ
Ÿ
Ÿ
When replacing a FRU, use the correct screw size as  
shown in the procedures.  
Safety Notice 1: Translation on page 5  
Before the computer is powered-on after FRU  
replacement, make sure all screws, springs, or other  
small parts, are in place and are not left loose inside  
the computer. Verify this by shaking the computer  
and listening for rattling sounds. Metallic parts or  
metal flakes can cause electrical short circuits.  
Safety Notice 4: Translation on page 8  
The lithium battery can cause a fire, explosion, or  
severe burn. Do not recharge it, remove its polarized  
connector, disassemble it, heat it above 100°C  
(212°F), incinerate it, or expose its cell contents to  
water. Dispose of the battery as required by local  
ordinances or regulations. Use only the battery in the  
appropriate parts listing. Use of an incorrect battery  
can result in ignition or explosion of the battery.  
Safety Notice 8: Translation on page 11  
Before removing any FRU, power-off the computer,  
unplug all power cords from electrical outlets, remove  
the battery pack, and then disconnect any  
interconnecting cables.  
Attention: The system board is sensitive to, and can be  
damaged by, electrostatic discharge. Establish personal  
grounding by touching a ground point with one hand before  
touching these units. Use an electrostatic discharge (ESD)  
strap (P/N 6405959) to establish personal grounding.  
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Important Notice  
This machine uses special nylon-coated screws with the  
following characteristics:  
Ÿ
Ÿ
They maintain tight connection.  
They do not easily come loose, even with shock or  
vibration.  
But:  
Ÿ
Ÿ
They need additional force to tighten.  
They should not be reused.  
Do the following when you service this machine:  
Ÿ
Ÿ
Ÿ
Keep the screw kit (P/N 12J0808) in your tool bag.  
Always use new screws.  
Use a torque screwdriver if you have one.  
Screw Tightening Information: Loose screws  
can cause a reliability problem. The IBM ThinkPad  
computer addresses this problem with nylon-coated  
screws. Tighten screws as follows:  
Ÿ
Plastic to plastic  
Turn an additional 90 degrees after the screw head  
touches the surface of the plastic part:  
Ÿ
Logic card to plastic  
Turn an additional 180 degrees after the screw head  
touches the surface of the logic card:  
Ÿ
Torque driver  
If you have a torque driver, refer to the “Torque”  
instructions with each step.  
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FRU Service Procedure  
Review the following procedures before replacing any  
FRUs.  
Replacing the System Board: The EEPROM on  
the system board contains the valid product data  
(VPD)—that is, a system unit serial number an a system  
board serial number. When you replace the system board,  
restore the system unit serial number using the Set  
system identification utility in the ThinkPad hardware  
maintenance diskette. The serial number label is attached  
to the computer.  
Note: Do not power off the computer while restoring the  
VPD.  
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Removal Reference  
Refer to the following chart for the removal order:  
Ref. No.  
FRU  
Page No.  
1010  
DIMM Card and  
Backup Battery  
62  
1020  
1030  
1040  
1050  
Battery Pack  
63  
64  
66  
69  
Hard Disk Drive  
Keyboard Unit  
Keyboard and  
Speaker  
1060  
1070  
CD-ROM Drive  
and Diskette  
Drive Assembly  
71  
72  
Diskette Drive  
and Diskette  
Drive Assembly  
1080  
1090  
LCD Unit  
76  
79  
Fan Assembly,  
CPU Card, and  
Thermal Rubber  
1100  
1110  
Upper Shield  
Case  
82  
83  
Box Speaker and  
Microphone  
1120  
1130  
DC/DC Card  
85  
87  
System Board  
and PC Card Slot  
1140  
Battery Pack  
Latch  
90  
2010  
2020  
2030  
LCD Front Cover  
LCD Panel  
91  
93  
97  
LCD Inverter  
Card  
2040  
2050  
LCD Misc. Parts  
LCD Cable  
99  
103  
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1010 DIMM Card and Backup Battery  
Safety Notice 4: Translation on page 8  
The lithium battery can cause a fire, explosion, or  
severe burn. Do not recharge it, remove its polarized  
connector, disassemble it, heat it above 100°C  
(212°F), incinerate it, or expose its cell contents to  
water. Dispose of the battery as required by local  
ordinances or regulations. Use only the battery in the  
appropriate parts listing. Use of an incorrect battery  
can result in ignition or explosion of the battery.  
.1/ Turn the computer upside down.  
.2/.3/.4/.5/.6/: DIMM  
.2/.3/.7/: Backup battery  
When installing:  
When installing a new backup battery, place it  
where the old one was on the printed circuit board  
(system board) with double-sided adhesive tape.  
Step  
Size (Quantity)  
Torque  
.2/  
3-4 kgcm  
Note: You can loosen the screw in step .2/, but cannot  
remove it.  
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1020 Battery Pack  
.1/ Turn the computer upside down.  
Pull up the battery pack lock .2/, push it back .3/, and  
then pull up the battery pack .4/.  
3
2
4
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1030 Hard Disk Drive  
Warning  
Do not drop or apply any shock to the hard disk  
drive. The hard disk drive is sensitive to physical  
shock. Incorrect handling can cause damage and  
permanent loss of data on the hard disk. Before  
removing the hard disk drive, have the user make a  
backup copy of all the information on the hard disk.  
Never remove the hard disk drive while the system is  
operating or is in suspend mode.  
Ÿ
Battery Pack (1020)  
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Information on spacers  
The relation between the thickness of the HDD and  
the spacers is as follows:  
12.5 mm  
17 mm  
Spacer  
None  
Step  
Size (Quantity)  
Torque  
.6/  
M 3 x 2.8 mm, Flathead (4)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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1040 Keyboard Unit  
Ÿ
Battery Pack (1020)  
Step  
.1/  
.2/  
Size (Quantity)  
Torque  
M 2.5 x 25 mm, nylon-coated (1)  
3-4 kgcm  
3-4 kgcm  
(a)M 2.5 x 8 mm, nylon-coated (3)  
(b)M 2.5 x 6 mm, nylon-coated (1)  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
.3/ Make sure that the battery pack lock is not sticking  
out, and turn the computer right side up.  
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Note: In order not to damage the connectors, pull the  
keyboard assembly toward you a little in step .7/,  
and then go to step .8/.  
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When installing  
See the following figure for the direction of the  
speaker connector:  
When replacing  
Apply a model name label on the keyboard.  
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1050 Keyboard and Speaker  
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
Important: When you release latch B, be careful not to  
apply any force to area A (lenses for status  
indicators).  
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When installing  
The following figure shows the route for the speaker  
cables.  
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1060 CD-ROM Drive and Diskette Drive  
Assembly  
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
Note: Be careful that the computer does not fall backward  
when you remove the CD-ROM and diskette drive  
assembly.  
Step  
.1/  
.2/  
.4/  
.5/  
Size (Quantity)  
Torque  
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 8 mm, nylon-coated (2)  
M 2.5 x 6 mm, nylon-coated (1)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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1070 Diskette Drive and CD-ROM Drive  
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
Note: When replacing, be sure to firmly tighten the pink  
and yellow screws.  
Diskette Drive  
1
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Right view  
2
3
1
2
Latch  
Step  
Size (Quantity)  
M 2.6 x 4 mm Yellow (1)  
Torque  
.2/  
4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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(Rear view)  
5
4
6
4
2
1
1
Step  
.4/  
Size (Quantity)  
Torque  
M 2 x 1.7 mm, special-head, Blue  
(2)  
1.5-1.8  
kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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Step  
Size (Quantity)  
Torque  
.7/  
M 2.6 x 2.8 mm pink (3)  
4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
10X - 24X CD-ROM (05K8868)  
Step  
Size (Quantity)  
Torque  
.1/  
M 2 x 1.7 mm, special-head, blue  
(2)  
1.5-1.8  
kgcm  
.4/  
(a) M 2 x 1.7 mm, special-head,  
blue (2)  
1.5-1.8  
kgcm  
(b) M 2 x 2.4 mm, special-head,  
yellow (2)  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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1080 LCD Unit  
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
Step  
.2/  
Size (Quantity)  
Torque  
M 2.5 x 6 mm, nylon-coated (5)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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Step  
.3/  
Size (Quantity)  
Torque  
3-4 kgcm  
3 kgcm  
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 6 mm, special-head (1)  
.5/  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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* When removing the LCD, be careful not to damage the  
latches.  
Step  
Size (Quantity)  
Torque  
.8/  
M 2.5 x 6 mm, nylon-coated (3)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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1090 Fan Assembly, CPU Card,  
Thermal Rubber  
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Attention:  
When removing, be careful not to damage the CPU  
card.  
Step  
.1/  
Size (Quantity)  
Torque  
M 2 x 6 mm, nylon-coated (2)  
M 2 x 18 mm, nylon-coated (3)  
2-3 kgcm  
2-3 kgcm  
.3/  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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2635-8xx/9xx/Axx/Bxx  
2635-Dxx/Exx/Fxx  
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Step  
Size (Quantity)  
Torque  
.6/  
M 2 x 6 mm, nylon-coated (2)  
2-3 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
When installing  
Ÿ
Make sure the connectors are fitted firmly by  
pressing the corners of the card.  
2635-8xx/9xx/Axx/Bxx  
2635-Dxx/Exx/Fxx  
A loose connection or a damaged card causes a  
power failure.  
Ÿ
The following figure shows the route of the fan  
assembly cables:  
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1100 Upper Shield Case  
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Step  
.2/  
Size (Quantity)  
Torque  
M 2.5 x 8 mm, nylon-coated (2)  
M 2.5 x 6 mm, nylon-coated (3)  
M 2.5 x 6 mm, bighead (1)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
.3/  
.4/  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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1110 Box Speaker and Microphone  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Upper Shield Case (1100)  
Step  
.1/  
Size (Quantity)  
Torque  
3-4 kgcm  
M 2.5 x 12 mm, nylon-coated (3)  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
IBM ThinkPad 380XD, 385XD (2635) 83  
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When installing  
The following figure shows the route for the  
microphone and speaker cables:  
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1120 DC/DC Card  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Upper Shield Case (1100)  
Pay attention that the connectors tend to be caught in the  
base cover.  
Step  
Size (Quantity)  
Torque  
.2/  
M 2.5 x 22 mm, nylon-coated (2)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
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When installing  
The following figure shows the route for the  
microphone cable:  
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1130 System Board and PC Card Slot  
1. The system unit serial number must be restored when  
the system board is replaced. To restore the system  
unit serial number, select the option “Set system  
identification” on the maintenance diskette. The flash  
ROM on the system board contains the vital product  
data (VPD)—that is, the system unit serial number,  
system board serial number, and other  
computer-unique data.  
2. Do not turn off the computer while restoring the VPD.  
The system unit serial number label is attached to the  
base cover.  
3. Before removing and replacing the system board  
assembly, make sure that the PC Cards are removed  
and the eject buttons are not sticking out. If the PC  
Card eject buttons are sticking out, pull them further  
out slightly and fold them to the right; then push up  
the system board assembly from the bottom.  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Fan Assembly/CPU Card (1090)  
Upper Shield Case (1100)  
Pay attention to the connectors that tend to catch in the  
cover.  
Step  
Size (Quantity)  
Torque  
.1/  
M 2.5 x 6 mm, nylon-coated (2)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
IBM ThinkPad 380XD, 385XD (2635) 87  
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3
5
4
6
Step  
.3/  
Size (Quantity)  
Torque  
M 2.5 x 6 mm, nylon-coated (2)  
Hex stud screw (6)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
.4/  
.5/  
M 2.5 x 6 mm, nylon-coated (1)  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
88 IBM ThinkPad 380XD, 385XD  
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Step  
Size (Quantity)  
Torque  
.7/  
M 2 x 18 mm, nylon-coated (2)  
2-3 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
IBM ThinkPad 380XD, 385XD (2635) 89  
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1140 Battery Pack Latch  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Fan Assembly/CPU Card (1090)  
Upper Shield Case (1100)  
System Board and PC Card Slot (1130)  
90 IBM ThinkPad 380XD, 385XD  
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2010 LCD Front Cover  
Ÿ
Ÿ
Ÿ
Ÿ
Memory-slot Cover (DIMM Card) (1010)  
Battery Pack (1020)  
Keyboard Unit (1040)  
LCD Unit (1080)  
.1/.2/.3/: LCD Front Cover  
.4/: Control Knob  
Notes:  
1. The LCD front cover has several latches. Release  
the latches as shown in the figure in step .3/.  
2. When replacing the control knob in step .4/, make  
sure that it works correctly.  
IBM ThinkPad 380XD, 385XD (2635) 91  
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Step  
Size (Quantity)  
Torque  
.2/  
M 2.5 x 6 mm, nylon-coated(2)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
92 IBM ThinkPad 380XD, 385XD  
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2020 LCD Panel  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Memory-slot Cover (DIMM Card) (1010)  
Battery Pack (1020)  
Keyboard Unit (1040)  
LCD Unit (1080)  
LCD Front Cover (2010)  
Note on LCD identification  
You can distinguish between HPA LCD, TFT LCD type  
1, and TFT LCD type 2 by the label on the LCD cable:  
HPA LCD: 05K9309 or 05K9320  
TFT LCD Type 1: 05K9312 or 05K9322  
TFT LCD Type 2: 05K9311 or 05K9321  
HPA LCD Panel  
(Labeled 05K9309 or 05K9320)  
IBM ThinkPad 380XD, 385XD (2635) 93  
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Note: In step .4/, lift the LCD panel slightly to disconnect  
the flexible cable in step .5/.  
Step  
Size (Quantity)  
Torque  
.1/  
M 2.5 x 6 mm, nylon-coated(4)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
94 IBM ThinkPad 380XD, 385XD  
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TFT LCD Panel  
Note on TFT LCD identification  
You can distinguish between HPA LCD, TFT LCD type  
1 and type 2 by the label on the LCD cable. The  
labels are said as follows.  
HPA LCD: 05K9309 or 05K9320  
TFT LCD Type 1: 05K9312 or 05K9322  
TFT LCD Type 2: 05K9311 or 05K9321  
Step  
Size (Quantity)  
Torque  
.1/  
M 2.5 x 6 mm, nylon-coated (4)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
IBM ThinkPad 380XD, 385XD (2635) 95  
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Type 1 (Labeled 05K9312 or 05K9322)  
Type 2 (Labeled 05K9311 or 05K9321)  
96 IBM ThinkPad 380XD, 385XD  
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2030 LCD Inverter Card  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Memory-slot Cover (DIMM Card) (1010)  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
LCD Front Cover (2010)  
LCD Panel (2020)  
HPA LCD  
Step  
Size (Quantity)  
M 2.5 x 6 mm, nylon-coated(1)  
Torque  
.1/  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
IBM ThinkPad 380XD, 385XD (2635) 97  
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TFT LCD  
Step  
Size (Quantity)  
Torque  
.2/  
M 2.0 x 3.7 mm, nylon-coated (2)  
3-4 kgcm  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
98 IBM ThinkPad 380XD, 385XD  
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2040 LCD Misc. Parts  
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Ÿ
Memory-slot Cover (DIMM Card) (1010)  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
LCD Front Cover (2010)  
LCD Panel (2020)  
LCD Inverter Card (2030)  
Hinges/Latches  
HPA LCD  
.1/.2/.3/: Hinges  
.4/.5/: Latches  
2
3
3
2
IBM ThinkPad 380XD, 385XD (2635) 99  
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Step  
Size (Quantity)  
Torque  
.1/  
(a) M 2.5 x 6mm, nylon-coated (2)  
(b) M 2.5 x 6mm, special-head (1)  
M 2.5 x 6mm, nylon-coated (2)  
3-4 kgcm  
3-3.5 kgcm  
3-4 kgcm  
.2/  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
When replacing: When replacing the hinge covers  
removed in step .5/, attach them to the shield  
sheet with double-sided adhesive tape as the old  
ones had been attached.  
100 IBM ThinkPad 380XD, 385XD  
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TFT LCD: This figure shows the TFT type 1 LCD. For  
the type 2, the same procedure applies.  
.1/.2/.3/: Hinges  
.4/.5/: Latches  
2
3
3
2
Step  
Size (Quantity)  
Torque  
.1/  
(a) M 2.5 x 6mm, nylon-coated (2)  
(b) M 2.5 x 6mm, special-head (1)  
M 2.5 x 6mm, nylon-coated (2)  
3-4 kgcm  
3-3.5 kgcm  
3-4 kgcm  
.2/  
Note: Make sure you use the correct screw, and tighten all  
screws firmly to the torque shown in the table if you have a  
torque screwdriver. Never use a screw that you removed.  
Use a new one. Make sure the screws are tightened  
firmly.  
When replacing: When replacing the hinge covers  
removed in step .5/, attach them to the shield  
sheet with double-sided adhesive tape as the old  
ones had been attached.  
IBM ThinkPad 380XD, 385XD (2635) 101  
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When replacing:  
Replace the LCD miscellaneous parts as follows:  
102 IBM ThinkPad 380XD, 385XD  
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2050 LCD Cable  
IBM ThinkPad 380XD, 385XD (2635) 103  
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Locations  
Front View  
.1/ LCD latches  
.2/ Color LCD screen  
.3/ (TFT display model) Brightness control  
.3/ (HPA display model) Contrast control  
.4/ Fan louver  
.5/ Infrared port  
.6/ Diskette eject button  
.7/ Diskette drive  
.8/ CD-ROM emergency eject hole  
.9/ CD-ROM eject button  
.1ð/ CD-ROM in-use indicator  
.11/ CD-ROM drive  
.12/ Stereo speakers  
.13/ Palm rest  
.14/ TrackPoint III  
.15/ Fn key  
.16/ Keyboard  
.17/ Speaker (Box speaker:subwoofer)  
.18/ Indicator panel  
.19/ Built-in microphone  
104 IBM ThinkPad 380XD, 385XD  
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Bottom View  
.1/ Memory-slot cover  
.2/ Power shutdown switch  
.3/ Memory slot  
.4/ Expansion connectors  
.5/ Battery pack lock  
.6/ Battery pack  
.7/ Serial number label  
IBM ThinkPad 380XD, 385XD (2635) 105  
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Rear View  
.1/ Hard disk drive  
.2/ Security keyhole  
.3/ PC Card eject buttons  
.4/ PC Card slots  
.5/ Volume control  
.6/ Microphone jack/Line-in jack  
.7/ Headphone jack  
.8/ Power switch  
.9/ External-input device connector  
.1ð/ Power jack  
.11/ Universal serial bus (USB) port  
.12/ Serial connector  
.13/ Parallel connector  
.14/ External-monitor connector  
.15/ Connector cover  
.16/ External suspend mode indicator  
.17/ External battery indicator  
106 IBM ThinkPad 380XD, 385XD  
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Parts Listing  
Note: FRU number 8 is available only on the  
2635-Dxx/Exx/Fxx.  
IBM ThinkPad 380XD, 385XD (2635) 107  
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System Unit  
Note on LCD  
See page 93 for the LCD identification.  
Ref. No. FRU Name  
FRU No.  
1
LCD Assembly (12.1 HPA)  
see page 111 for LCD FRU  
LCD Assembly (12.1 TFT type 1)  
see page 113 for LCD FRU  
LCD Assembly (12.1 TFT type 2)  
see page 115 for LCD FRU  
LCD Cable Holder (included in Ref.No.15  
on pages 112, 114 and 116)  
Stereo Speaker Assembly  
Support Plate  
2
3
4
02K4330  
(included in Base Misc. Parts Kit on page 109)  
Right Shield Case  
5
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
Fan  
Air Duct  
(included in Base Misc. Parts Kit on page 109)  
05K4749  
05K5237  
05K4746  
6
7
8
9
MMO Spacer for 2635-Dxx/Exx/Fxx  
Thermal Rubber  
05K5234  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
05K4748  
05K5235  
10  
CPU Card (233 MHz)  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
12J0408  
10L0888  
CPU Card (266 MHz)  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
Heat Sink  
10L0885  
10L0887  
05K4747  
11  
12  
13  
Connector Bracket (see page 110 )  
CD/Diskette Drive Connector Assembly  
(with-CD model)  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
05K2637  
05K2657  
13  
14  
Diskette Drive Connector Assembly  
(non-CD model)  
CD-ROM/Diskette Drive Assembly (see page 110 )  
83H6527  
108 IBM ThinkPad 380XD, 385XD  
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Ref. No. FRU Name  
FRU No.  
05K4744  
02K6498  
15  
16  
17  
Connector Cover  
Backup Battery  
SO-DIMM  
see “Option Parts List” on page 118  
Memory Slot Cover  
Battery Pack  
18  
19  
05K4758  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
Base Cover Assembly  
Battery Pack Lock Assembly  
Power Switch Knob  
73H9951  
02K6509  
05K4743  
05K4775  
20  
21  
22  
(included in Base Misc. Parts Kit on page 109)  
23  
24  
25  
26  
27  
28  
HDD Cable Assembly  
Hard Disk Drive (see page 110)  
Lower Shield Case  
HDD Lid  
HDD Lid Coin Screw  
DC/DC Card  
05K2636  
05K4745  
05K4753  
05K4754  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
PC Card Slot  
05K3195  
10L0930  
05K4862  
29  
30  
Box Speaker  
(including Power Switch)  
Microphone Assembly  
Upper Shield Case  
Keyboard Bezel  
Keyboard (see page 117 )  
TrackPoint III Cap  
02K4328  
02K4329  
05K4750  
05K4755  
31  
32  
33  
34  
35  
36  
84G6536  
System Board  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
Base Misc. Parts Kit  
including: Air Duct (Ref.No.2)  
05K3196  
10L0929  
05K4774  
Power Switch Knob(Ref.No.21)  
Support Plate (Ref.No.4.)  
Logo for LG Korea  
Cable Holding Tape  
11J8373  
11J8376  
IBM ThinkPad 380XD, 385XD (2635) 109  
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Hard Disk Drive, CD-ROM, Diskette  
Drive  
Ref. No. FRU Name  
FRU No.  
1
Connector Bracket (included in Ref.No.4.  
CD/Diskette Drive Bracket)  
CD/Diskette Drive Connector Assembly  
For 2635-8xx/9xx/Axx/Bxx  
For 2635-Dxx/Exx/Fxx  
2
05K2637  
05K2657  
2
Diskette Drive Connector Assembly  
(for non-CD model)  
83H6527  
05K8868  
05K4751  
3
4
CD-ROM(10 X-24 X)  
CD/Diskette Drive Bracket Kit  
including:  
CD/Diskette Drive Bracket (Ref.No.4)  
Connector Bracket (Ref.No.1)  
Absorber (Ref.No.5)  
5
Absorber (included in Ref.No.4  
CD/Diskette Drive Bracket)  
Diskette Drive  
6
7
11J8338  
73H9932  
73H9934  
05K4743  
05K4752  
22L0004  
83H7086  
83H7085  
83H7084  
Diskette Drive Bezel  
7
8
9
10  
10  
10  
10  
Blank Bezel (for non-CD model)  
Base Cover Assembly  
HDD Bracket  
Hard Disk Drive, 2.1 GB (12.5 mm)  
Hard Disk Drive, 3.2 GB (12.5 mm)  
Hard Disk Drive, 4.0 GB (12.5 mm)  
Hard Disk Drive, 5.1 GB (17 mm)  
(See page 65 for relation between  
the HDD and the spacers.)  
HDD Spacer  
11  
05K4776  
110 IBM ThinkPad 380XD, 385XD  
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LCD FRU  
HPA (Labeled 05K9309 or 05K9320)  
IBM ThinkPad 380XD, 385XD (2635) 111  
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Ref. No. FRU Name  
FRU No.  
1
Front Bezel  
(included in Ref.No.13 LCD Cover Kit)  
Contrast Control Knob  
2
(included in Ref.No.15 LCD Misc. Parts Kit)  
3
4
5
6
7
8
LCD Panel  
Inverter Card  
LCD Cable Assembly  
Right Hinge (included in Ref.No.14 Hinge Kit)  
LED Lens (included in Ref.No.15 LCD Misc.Kit)  
Insulation Sheet  
05K9336  
05K3194  
12J0139  
(included in Ref.No.13 LCD Cover Kit)  
LCD Cover  
(included in Ref.No.13 LCD Cover Kit)  
Right Latch  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Latch  
9
10  
11  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Hinge (included in Ref.No.14 Hinge Kit)  
12  
13  
LCD Cover Kit  
including:  
05K4779  
Front Bezel (Ref.No.1)  
Insulation Sheet (Ref.No.8)  
LCD Cover (Ref.No.9)  
Logo (Front, Rear)  
Hinge Cap  
Screw Cap  
14  
15  
Hinge Kit  
including:  
Right Hinge (Ref.No.6)  
Left Hinge (Ref.No.14)  
Screw Cap  
LCD Misc. Parts Kit  
including:  
73H9942  
73H9949  
LCD Cable Holder (Ref.No.2 on page 108)  
Contrast Control Knob (Ref.No.2)  
LED Lens (Ref.No.7)  
Right Latch, Spring, Holder (Ref.No.10)  
Left Latch, Spring, Holder (Ref.No.11)  
Screw Cap  
112 IBM ThinkPad 380XD, 385XD  
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TFT 1 (Labeled 05K9312 or 05K9322)  
IBM ThinkPad 380XD, 385XD (2635) 113  
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Ref. No. FRU Name  
FRU No.  
1
Front Bezel  
(included in Ref.No.13 LCD Cover Kit)  
Brightness Control Knob  
2
(included in Ref.No.15 LCD Misc. Parts Kit)  
3
4
5
6
LCD Panel  
Inverter Card  
LCD Cable Assembly  
Right Hinge  
05K9335  
05K3197  
73H9948  
(included in Ref.No.14 Hinge Kit)  
LED Lens  
(included in Ref.No.15 LCD Misc. Kit)  
Insulation Sheet  
7
8
(included in Ref.No.13 LCD Cover Kit)  
LCD Cover  
9
(included in Ref.No.13 LCD Cover Kit)  
Right Latch  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Latch  
10  
11  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Hinge (included in Ref.No.14 Hinge Kit)  
12  
13  
LCD Cover Kit  
including:  
05K4780  
Front Bezel (Ref.No.1)  
Insulation Sheet (Ref.No.8)  
LCD Cover (Ref.No.9)  
Logo (Front, Rear)  
Hinge Cap  
Screw Cap  
14  
15  
Hinge Kit  
including:  
Right Hinge (Ref.No.6)  
Left Hinge (Ref.No.14)  
Screw Cap  
LCD Misc. Parts Kit  
including:  
73H9943  
73H9949  
LCD Cable Holder (Ref.No.2 on page 108)  
Contrast Control Knob (Ref.No.2)  
LED Lens (Ref.No.7)  
Right Latch, Spring, Holder (Ref.No.10)  
Left Latch, Spring, Holder (Ref.No.11)  
Screw Cap  
114 IBM ThinkPad 380XD, 385XD  
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TFT 2 (Labeled 05K9311 or 05K9321)  
IBM ThinkPad 380XD, 385XD (2635) 115  
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Ref. No. FRU Name  
FRU No.  
1
Front Bezel  
(included in Ref.No.13 LCD Cover Kit)  
Brightness Control Knob  
2
(included in Ref.No.15 LCD Misc. Parts Kit)  
3
4
5
6
7
8
LCD Panel  
Inverter Card  
LCD Cable Assembly  
Right Hinge (included in Ref.No.14 Hinge Kit)  
LED Lens (included in Ref.No.15 LCD Misc. Kit)  
Insulation Sheet  
05K9315  
05K3150  
05K4358  
(included in Ref.No.13 LCD Cover Kit)  
LCD Cover  
(included in Ref.No.13 LCD Cover Kit)  
Right Latch  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Latch  
9
10  
11  
(included in Ref.No.15 LCD Misc. Parts Kit)  
Left Hinge (included in Ref.No.14 Hinge Kit)  
12  
13  
LCD Cover Kit  
including:  
05K4781  
Front Bezel (Ref.No.1)  
Insulation Sheet (Ref.No.8)  
LCD Cover (Ref.No.9)  
Logo (Front, Rear)  
Hinge Cap  
Screw Cap  
14  
15  
Hinge Kit  
including:  
Right Hinge (Ref.No.6)  
Left Hinge (Ref.No.14)  
Screw Cap  
LCD Misc. Parts Kit  
including:  
73H9943  
73H9949  
LCD Cable Holder (Ref.No.2 on page 108)  
Contrast Control Knob (Ref.No.2)  
LED Lens (Ref.No.7)  
Right Latch, Spring, Holder (Ref.No.10)  
Left Latch, Spring, Holder (Ref.No.11)  
Screw Cap  
116 IBM ThinkPad 380XD, 385XD  
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Keyboard  
Arabic  
Belgian  
Canadian French  
Czech  
Danish  
Dutch  
French  
German  
Greek  
Hebrew  
Hungarian  
Italian  
Japanese  
Korean  
Latin American Spanish  
Norwegian  
Poland  
Portuguese  
Russian  
Slovakian  
Slovenian  
Spanish  
Swedish or Finnish  
Swiss  
Taiwanese  
Thai  
02K4351  
02K4341  
02K4344  
02K4352  
02K4343  
02K4337  
02K4335  
02K4334  
02K4353  
02K4354  
02K4355  
02K4336  
02K4333  
02K4345  
02K4348  
02K4342  
02K4357  
02K4356  
02K4346  
02K4358  
02K4359  
02K4339  
02K4338  
02K4340  
02K4347  
02K4349  
02K4350  
02K4332  
02K4331  
Turkish  
U.K. English  
U.S. English  
IBM ThinkPad 380XD, 385XD (2635) 117  
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Option Parts List  
Miscellaneous Parts  
FRU Name  
Screw Kit  
including:  
FRU Number  
05K4837  
Hex stud, D-Sub (6)  
M2 x 1.7, Special (4)  
M2 x 2.4, Special (2)  
M2 x 6, Bind, nylon-coated (4)  
M2 x 18, Bind, nylon-coated (3)  
M2.5 x 6, Special (2)  
M2.5 x 6, Big (1)  
M2.5 x 6, Bind, Black, nylon-coated (30)  
M2.5 x 8, Bind, Black, nylon-coated (7)  
M2.5 x 12, Bind, nylon-coated (3)  
M2.5 x 22, Bind, nylon-coated (2)  
M2.5 x 25, Bind, nylon-coated (1)  
M2.6 x 2.8, Bind (3)  
M2.6 x 4, Bind (2)  
M3 x 3, Flathead, nylon-coated (4)  
Screw tapping (2)  
118 IBM ThinkPad 380XD, 385XD  
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Options  
Notes  
1. If you need to replace the AC Adapter, use the  
one for the country you are in even if the  
computer is from a different country.  
2. The warranty for the system unit does not apply  
to all options.  
FRU Name  
Headset  
4.0 GB Hard Disk Drive Assembly  
AC Adapter (56 W, 3-prong)  
AC Adapter (56 W, 3-prong)  
AC Adapter (for Japan, 2-prong)  
AC Adapter (for Japan, 2-prong)  
Microphone  
FRU Number  
85G1529  
83H7085  
11J8956  
02K6496  
11J8974  
02K6497  
66G7871  
95F5723  
84G1320  
12J1602  
11J9000  
84G1321  
42H2767  
42H2768  
01K1115  
42H2769  
42H2817  
1
1
2
2
PS/2 Miniature Mouse  
ThinkPad 380/385 Port Replicator  
ThinkPad 560 Port Replicator  
ThinkPad Enhanced Port Replicator  
Upper Cover Set  
SO-DIMM 8 MB 70ns  
SO-DIMM 16 MB 70ns  
SO-DIMM 16 MB 60ns  
SO-DIMM 32 MB 60ns  
SO-DIMM 64 MB 60ns  
Interface Cable to System for Keyboard 84G2531  
Interface Cable to Keyboard for Keypad 84G2532  
Mini-DIN to Mini-DIN Cable  
84G6474  
1
2
The 3-prong adapters are interchangeable; you can order either  
one.  
The 2-prong adapters are interchangeable; you can order either  
one.  
IBM ThinkPad 380XD, 385XD (2635) 119  
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Numeric Keypad  
Belgian  
Canadian French  
Danish  
Dutch  
French  
German  
Greek  
Hebrew  
Icelandic  
Italian  
Japanese  
Norwegian  
Spanish  
Swedish or Finnish  
Swiss French  
Swiss German  
Turkish  
U.K. English  
U.S. English  
95F5741  
95F5466  
95F5467  
95F5467  
95F6313  
95F6314  
95F5467  
95F5741  
95F5467  
95F6316  
79F6401  
95F5467  
95F6315  
95F5468  
95F5711  
95F5715  
95F5467  
95F5741  
95F5741  
Black Keypad  
French  
German  
Italian  
Norwegian  
Swedish  
U.K. English  
U.S. English  
84G6286  
84G6280  
84G6292  
84G6310  
84G6304  
84G6298  
84G2530  
Black Keyboard  
French  
German  
Italian  
Norwegian  
Swedish  
U.K. English  
U.S. English  
84G6285  
84G6279  
84G6291  
84G6309  
84G6303  
84G6297  
84G2529  
Accessories  
Keyboard/Mouse Cable  
54G0444  
Tools  
Tri-Connector Wrap Plug  
PC Test Card  
Audio Wrap Cable  
USB Parallel Test Cable  
Screwdriver Kit  
Torque Screwdriver  
5-mm Socket Wrench  
Screwdriver  
72X8546  
35G4703  
66G5180  
05K2580  
95F3598  
05K4695  
05K4694  
05K4693  
ThinkPad Hardware Maintenance  
Diskette Version 1.40  
(See “Maintenance Diskette Download” on page 57.)  
120 IBM ThinkPad 380XD, 385XD  
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Power Cords  
IBM power cords for a specific country are usually  
available only in that country:  
For 2-pin power cords:  
IBM  
Used in These Countries  
Power  
Cord  
Part  
Number  
13H5264  
Bahamas, Barbados, Bermuda, Bolivia, Canada,  
Cayman Islands, Colombia, Costa Rica,  
Dominican Republic, Ecuador, El Salvador,  
Guatemala, Guyana, Haiti, Honduras, Jamaica,  
Korea (South), Mexico, Netherlands Antilles,  
Nicaragua, Panama, Peru, Philippines, Saudi  
Arabia, Suriname, Taiwan, Thailand, Trinidad  
(West Indies), United States of America,  
Venezuela  
13H5267  
13H5270  
Abu Dhabi, Albania, Antigua, Bahrain, Brunei,  
Dubai, Fiji, India, Ireland, Kenya, Kuwait, Macao,  
Malaysia, Nigeria, Oman, People's Republic of  
China (including Hong Kong), Qatar, Singapore,  
United Kingdom  
Austria, Belgium, Bulgaria, Chile, Czech  
Republic, Denmark, Egypt, Finland, France,  
Germany, Greece, Hungary, Iceland, Indonesia,  
Israel, Italy, Netherlands, Norway, Poland,  
Portugal, Romania, Slovakia, Spain, Sweden,  
Switzerland, Turkey, former Yugoslavia  
13H5273  
13H5276  
Japan  
Argentina, Australia, New Guinea, New Zealand,  
Papua New Guinea, Paraguay, Uruguay  
13H5279  
Bangladesh, Pakistan, South Africa, Sri Lanka  
IBM ThinkPad 380XD, 385XD (2635) 121  
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For 3-pin slim power cords:  
IBM  
Power  
Cord  
P/N  
Used in These Countries  
76H3514  
Argentina, Australia, New Zealand, Papua New  
Guinea, Paraguay, Uruguay  
76H3516  
Bahamas, Barbados, Bermuda, Bolivia, Canada,  
Cayman Islands, Colombia, Costa Rica,  
Dominican Republic, Ecuador, El Salvador,  
Guatemala, Guyana, Haiti, Honduras, Jamaica,  
Mexico, Netherlands Antilles, Nicaragua,  
Panama, Peru, Philippines, Saudi Arabia,  
Suriname, Taiwan, Trinidad (West Indies),  
United States of America, Venezuela, Thailand  
76H3518  
Austria, Belgium, Bulgaria, Czech Republic,  
Egypt, Finland, France, Germany, Greece,  
Hungary, Iceland, Indonesia, Netherlands,  
Norway, Poland, Portugal, Romania, Slovakia,  
Spain, Sweden, Turkey, former Yugoslavia  
76H3520  
76H3522  
76H3524  
Denmark  
Bangladesh, Pakistan, South Africa, Sri Lanka  
Abu Dhabi, Albania, Antigua, Bahrain, Brunei,  
Dubai, Fiji, India, Ireland, Kenya, Kuwait, Macao,  
Malaysia, Nigeria, Oman, People's Republic of  
China (including Hong Kong), Qatar, Singapore,  
United Kingdom  
76H3526  
76H3528  
76H3530  
76H3532  
76H3535  
Japan  
Liechtenstein, Switzerland  
Chile, Ethiopia, Italy, Libya  
Israel  
Korea  
122 IBM ThinkPad 380XD, 385XD  
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Notices  
References in this publication to IBM products, programs,  
or services do not imply that IBM intends to make these  
available in all countries in which IBM operates. Any  
reference to an IBM product, program, or service is not  
intended to state or imply that only that IBM product,  
program, or service may be used. Any functionally  
equivalent product, program, or service that does not  
infringe any of the intellectual property rights of IBM may  
be used instead of the IBM product, program, or service.  
The evaluation and verification of operation in conjunction  
with other products, except those expressly designated by  
IBM, are the responsibility of the user.  
IBM may have patents or pending patent applications  
covering subject matter in this document. The furnishing  
of this document does not give you any license to these  
patents. You can send license inquiries, in writing, to the  
IBM Director of Licensing, IBM Corporation, 500 Columbus  
Avenue, Thornwood, NY 10594, U.S.A.  
Trademarks  
The following terms are trademarks of the IBM Corporation  
in the United States or other countries or both:  
IBM  
ThinkPad  
TrackPoint  
TrackPoint III  
Microsoft, Windows, and the Windows 95 flag logo are  
trademarks or registered trademarks of Microsoft  
Corporation.  
Pentium, MMX, ProShare, LANDesk, and  
ActionMediaare trademarks or registered trademarks of  
Intel Corporation in the U.S. and other countries.  
Other company, product, and service names used in this  
publication may be trademarks or service marks of others.  
IBM ThinkPad 380XD, 385XD (2635) 123  
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IBM  
Part Number: 10L9623  
Printed in U.S.A.  
S1ðL-9623-ðð  
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