IBM THINKPAD 760XL 9546 User Manual

S82G-1503-05

IBM Mobile Systems

Hardware Maintenance Manual

Volume 3: ThinkPad Computers

March 1997

We Want Your Comments!

(Please see page 611)

This Manual Supports:

ThinkPad 365C/CD

ThinkPad 365CS/CSD

ThinkPad 365X/XD

ThinkPad 380

ThinkPad 385

ThinkPad 560

ThinkPad 760C/CD

ThinkPad 760E/ED

ThinkPad 760L/LD

ThinkPad 760EL/ELD

ThinkPad 760XL

ThinkPad 760XD

SelectaDock

(2625)

(2635)

(2640)

(9546)

(9547)

(9546)

(9547)

(3547)

S82G-1503-05

IBM Mobile Systems

Hardware Maintenance Manual

Volume 3: ThinkPad Computers

March 1997

We Want Your Comments!

(Please see page 611)

IBM

Note

Before using this information and the product it

supports, be sure to read the general information

under “Notices” on page 616.

Sixth Edition (March 1997)

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 WARRANTY OF ANY

KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT

NOT LIMITED TO, THE IMPLIED WARRANTIES OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE. Some states do not allow disclaimer of

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 and/or changes in the product(s) and/or the

program(s) described in this publication at any time.

This publication was developed for products and services

offered in the United States of America. IBM may not offer

the products, services, or features discussed in this

document in other countries, and the information is subject

to change without notice. Consult your local IBM

representative for information on the products, services,

and features available in your area.

Requests for technical information about IBM products

should be made to your IBM reseller or IBM marketing

representative.

 Copyright International Business Machines

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.

ii IBM Mobile Systems - ThinkPad HMM Volume 3

About This Manual

This manual contains service and reference information for

IBM ThinkPad 365, 380, 385, 560, 760, and SelectaDock

products. Use this manual along with the advanced

diagnostic tests to troubleshoot problems effectively.

The manual is divided into sections as follows:

The Introduction section provides general information,

guidelines, and safety information required to service

computers.

The product-specific sections include service,

reference, and product-specific parts information.

The Common Devices Checkout section provides

procedures for testing the devices that are commonly

attached to ThinkPad computers.

The Miscellaneous Information section contains

information about acronyms, abbreviations, terms,

and a telephone number listing.

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 mobile product, be sure to

review the safety information under “Safety Notices

(Multi-lingual Translations)” on page 8 and “Safety

Information” on page 15.

iii

Related Publications

The following mobile 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

30H2357, S82G-1502-03

(Model 340, 355, 360, 370,

700, 701, 720, 750, 755)

ThinkPad 700 (9552) HMS

ThinkPad 700 (9552) HMR

ThinkPad 700C (9552) HMS

ThinkPad 700C (9552) HMR

42G2016, S42G-2016

42G2015, S42G-2015

42G2022, S42G-2022

42G2021, S42G-2021

61G1193, S61G-1193

ThinkPad 720/720C (9552)

HMS

ThinkPad 720/720C (9552)

HMR

61G1187, S61G-1187

ThinkPad 730T (2524) HMM

82G5497, S82G-5497

42G2338, S42G-2338

ThinkPad Exp. Crtg. (3550)

HMS

ThinkPad Exp. Crtg. (3550)

HMR

42G2339, S42G-2339

PS/2 FaxConcentrator HMS

PS/2 FaxConcentrator HMR

15F2262, S15F-2262

84F8541, S84F-8541

10G5993, S10G-5993

PS/2 Comm. Cartridge I

HMS

PS/2 Comm. Cartridge I

HMR

10G5992, S10G-5992

61G1556, S61G-1556

IBM High Speed Internal,

PCMCIA Data/Fax Modems

iv IBM Mobile Systems - ThinkPad HMM Volume 3

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

71G3702, S71G-3702

83G8095, S83G-8095

ThinkPad 365 (2625)

Advanced Diagnostics

Diskette

ThinkPad 500 (2603)

Advanced Diagnostics

Diskette

ThinkPad 510 (2604)

Advanced Diagnostics

Diskette

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

vi IBM Mobile Systems - ThinkPad HMM Volume 3

Contents

Introduction . . . . . . . . . . . . . . . . . . .

Portable Computer Descriptions . . . . . . . . . .

Drive and Diskette Compatibility Matrix . . . . . . .

Important Service Information

Safety Notices (Multi-lingual Translations)

Safety Information

Laser Compliance Statement

Screw Size Chart . . . . . . . . . . . . . . . . . 22

. . . . . . . . . . .

. . . . .

. . . . . . . . . . . . . . . . 15

. . . . . . . . . . . 20

ThinkPad 365 (2625)

. . . . . . . . . . . . . . 25

Read This First . . . . . . . . . . . . . . . . . . 27

General Checkout . . . . . . . . . . . . . . . . . 30

Symptom-to-FRU Index . . . . . . . . . . . . . . 41

Related Service Procedures . . . . . . . . . . . . 50

Diagnostic Test Programs . . . . . . . . . . . . . 52

Using the Diagnostics Test Programs

. . . . . . . 54

Product Overview (365C, CD, CS, CSD) . . . . . . 58

Product Overview (365E, ED) . . . . . . . . . . . 59

FRU Removals and Replacements . . . . . . . . . 60

Locations . . . . . . . . . . . . . . . . . . . . . 81

Parts Listing 365C, CD, CS, CSD (2625)

. . . . . 84

Parts Listing 365E, ED (2625) . . . . . . . . . . . 87

ThinkPad 365X, 365XD (2625) . . . . . . . . . . 91

Read This First . . . . . . . . . . . . . . . . . . 93

Checkout Guide

. . . . . . . . . . . . . . . . . 96

Symptom-to-FRU Index . . . . . . . . . . . . . 106

Related Service Procedures . . . . . . . . . . . 117

Product Overview (365X, 365XD) . . . . . . . . 126

FRU Removals and Replacements . . . . . . . . 127

Locations . . . . . . . . . . . . . . . . . . . . 164

Parts Listing 365X, 365XD (2625) . . . . . . . . 170

ThinkPad 380, 380D, 385, 385D (2635) . . . . . 183

Read This First . . . . . . . . . . . . . . . . . 185

Checkout Guide

. . . . . . . . . . . . . . . . 189

Symptom-to-FRU Index . . . . . . . . . . . . . 199

Related Service Procedures . . . . . . . . . . . 210

Product Overview (380, 380D, 385, 385D) . . . . 215

FRU Removals and Replacements . . . . . . . . 216

Locations . . . . . . . . . . . . . . . . . . . . 249

Parts Listing 380/385 (2635)

. . . . . . . . . . 252

ThinkPad 560 (2640)

Read This First . . . . . . . . . . . . . . . . . 265

Checkout Guide . . . . . . . . . . . . . . . . 268

. . . . . . . . . . . . . 263

Symptom-to-FRU Index . . . . . . . . . . . . . 279

Related Service Procedures . . . . . . . . . . . 291

Product Overview (560) . . . . . . . . . . . . . 296

FRU Removals and Replacements . . . . . . . . 297

Locations . . . . . . . . . . . . . . . . . . . . 321

 Copyright IBM Corp. 1997

vii

Parts Listing 560 (2640) . . . . . . . . . . . . . 325

ThinkPad 760 (9546, 9547)

Read This First . . . . . . . . . . . . . . . . . 338

Checkout Guide . . . . . . . . . . . . . . . . 341

. . . . . . . . . . 335

Symptom-to-FRU Index . . . . . . . . . . . . . 359

Related Service Procedures . . . . . . . . . . . 372

Product Overview (760) . . . . . . . . . . . . . 377

FRU Removals and Replacements . . . . . . . . 382

LCD Removal and Replacement . . . . . . . . . 427

LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N

29H9029) . . . . . . . . . . . . . . . . . . . 428

LCD Unit, 12.1 SVGA (P/N 29H9226, ASM P/N

73H6599) . . . . . . . . . . . . . . . . . . . 433

LCD Unit, 10.4 SVGA (P/N 29H9227)

LCD Unit, 10.4 VGA (P/N 46H5355) . . . . . . . 444

LCD Unit, 11.3 DSTN (P/N 39H6232) . . . . . . 449

LCD Unit, 12.1 XGA . . . . . . . . . . . . . . 454

LCD Unit, 12.1 SVGA (P/N 82H8496) . . . . . . 460

. . . . . . 439

LCD Unit, 12.1 SVGA (P/N 11J8867, ASM P/N

11J8855) . . . . . . . . . . . . . . . . . . . 466

LCD Unit, 12.1 SVGA (P/N 46H5725, ASM P/N

46H5723) . . . . . . . . . . . . . . . . . . . 472

Locations . . . . . . . . . . . . . . . . . . . . 478

Parts Listing 760 (9546, 9547)

. . . . . . . . . 483

LCD Parts List . . . . . . . . . . . . . . . . . 520

ThinkPad SelectaDock Docking System

. . . . 547

Read This First . . . . . . . . . . . . . . . . . 548

General Preparation . . . . . . . . . . . . . . . 550

Checkout Guide

Printer . . . . . . . . . . . . . . . . . . . . . 554

Running Diagnostics . . . . . . . . . . . . . . 559

. . . . . . . . . . . . . . . . 551

Symptom-to-FRU Index . . . . . . . . . . . . . 565

Undetermined Problems . . . . . . . . . . . . . 573

FRU Removals and Replacements . . . . . . . . 574

Locations . . . . . . . . . . . . . . . . . . . . 583

Parts Listing SelectaDock (3547)

. . . . . . . . 588

Common Devices Checkout . . . . . . . . . . 591

External Diskette Drive Test . . . . . . . . . . . 592

External Display Self-Test . . . . . . . . . . . . 592

External Keyboard/Auxiliary Input Device Checkout

Fax/Modem Checkout . . . . . . . . . . . . . . 594

Printer Checkout . . . . . . . . . . . . . . . . 596

593

Port Replicator Checkout

TrackPoint Checkout

. . . . . . . . . . . . 597

. . . . . . . . . . . . . . 598

TV Tuner . . . . . . . . . . . . . . . . . . . . 599

Common Parts Listing . . . . . . . . . . . . . 605

Miscellaneous Information . . . . . . . . . . . 609

Acronyms, Abbreviations and Terms . . . . . . . 609

Send Us Your Comments! . . . . . . . . . . . . 611

viii IBM Mobile Systems - ThinkPad HMM Volume 3

Do You Need Technical References?

. . . . . . 612

Problem Determination Tips . . . . . . . . . . . 613

Phone Numbers, U.S. and Canada . . . . . . . . 614

Notices . . . . . . . . . . . . . . . . . . . . . 616

Contents ix

IBM Mobile Systems - ThinkPad HMM Volume 3

Introduction

Portable Computer Descriptions . . . . . . . . . .

Drive and Diskette Compatibility Matrix . . . . . . .

Important Service Information

How to Use Error Messages

. . . . . . . . . . .

. . . . . . . . . .

How to Read POST Error Messages

Safety Notices (Multi-lingual Translations)

. . . . . .

. . . . .

Safety Information

General Safety

. . . . . . . . . . . . . . . . 15

Electrical Safety . . . . . . . . . . . . . . . . 16

Safety Inspection Guide . . . . . . . . . . . . 17

Handling Electrostatic Discharge-Sensitive Devices 19

Grounding Requirements . . . . . . . . . . . . 19

Laser Compliance Statement

. . . . . . . . . . . 20

Screw Size Chart . . . . . . . . . . . . . . . . . 22

 Copyright IBM Corp. 1997

Portable Computer Descriptions

Models N51, CL57, and P70/75 and Thinkpads 700x and

720x are Micro Channel systems. All others are AT/ISA

bus systems.

Model

Type

Processor

Memory Hrd Dsk

Model L40SX

Model N45 SL

8543-044 386SX-20

2614-065 386SL-25

2614-067 386SL-25

8551-025 386SLC-16

8551-033 386SX-16

8554-045 386SX-20

8573-031 80386-16

8573-061 80386-20

8573-121 80386-20

8573-161 80486-33

8573-401 80486-33

2615-065 386SL-25

2615-067 386SL-25

2M/18M

2M/8M

2M/10M

2M/16M

2M/8M

60M

80M

120M

80M

40M

80M

Model N51 SLC

Model N51 SX

Model CL57 SX

Model P70 386

30M

60M

2M/8M

120M

160M

400M

80M

120M

125M

200M

360M

540M

85M

Model P75 486

ThinkPad 300

8M/16M

4M/12M

4M/20M

4M/16M

2M/16M

4M/16M

8M/24M

8M/40M

4M/32M

ThinkPad 340

2610

486SLC2-50/25

ThinkPad 340CSE

ThinkPad 345

ThinkPad 345CS

ThinkPad 350

486SLC2-50/25

486SLC2-66/33

486DX4-75

DX4-75

2618-AOE 486SL-25

2618-JOA 486SL-25

2618-LOA 486SL-25

2618-NOA 486SL-25

2618-POA 486SL-25

125M

250M

125M

250M

125M

250M

170M

250M

170M

340M

170M

340M

170M

340M

170M

340M

540M

170M

340M

540M

170M

340M

540M

810M

1.0G

ThinkPad 350C

ThinkPad 355

ThinkPad 355C

2619

2620

486SX-33

486DX2-50/25

486SX-33

ThinkPad 355Cs

ThinkPad 360

ThinkPad 360C

ThinkPad 360Cs

ThinkPad 360Ce

ThinkPad 360Cse

ThinkPad 360P

ThinkPad 365C

486SX-33

2625-205 486DX4-75

2625-x05 486DX4-75

ThinkPad 365E

ThinkPad 365ED

ThinkPad 365X/XD

2625

9545

5x86-100/33

Pentium-100

Pentium-120

Pentium-133

486DX4-75/25

486DX4-75/33

ThinkPad 365X/XD

ThinkPad 370C

540M

810M

1.0G

810M

1.0G

1.3G

340M

540M

810M

Color

Megabyte

Pen

Tablet

ThinkPad File

TPF

IBM Mobile Systems - ThinkPad HMM Volume 3

Model

Type

Processor

Memory Hrd Dsk

ThinkPad 380

2635

Pentium-150

16M/48M

4M/12M

8M/40M

4M/16M

4M/32M

8M/32M

4M/32M

8M/32M

4M/12M

4M/16M

4M/12M

4M/20M

4M/32M

8M/32M

1.08G

1.35G

2.10G

1.08G

1.35G

2.10G

80M

170M

540M

810M

1.0G

540M

810M

1.0G

540M

810M

1.0G

ThinkPad 385

ThinkPad 500

ThinkPad 560

2603-081 486SLC2-50/25

2603-171 486SLC2-50/25

2640

Pentium-100

Pentium-120

Pentium-130

ThinkPad 560

ThinkPad 700

9552-300 486SLC-25

9552-301 486SLC-25

9552-30B 486SLC-25

80M

120M

360MB

540MB

360MB

540MB

360MB

540MB

360MB

540MB

TPF

60M

120M

160M

ThinkPad 700C

ThinkPad 701C

2630

486DX2-25/50

486DX4-25/75

486DX2-25/50

486DX4-25/75

ThinkPad 701Cs

ThinkPad 710T

ThinkPad 720

2523-09Y 486SLC2-25

2523-302 486SLC2-25

2523-303 486SLC2-25

9552-307 486SLC-25/50

9552-308 486SLC-25/50

9552-30J 486SLC-25/50

ThinkPad 720C

ThinkPad 730T

2524

486SLC2-25

60M

ThinkPad 750

9545-006 486SL-33

9545-008 486SL-33

9545-306 486SL-33

9545-308 486SL-33

9545

170M

340M

170M

340M

170M

340M

170M

340M

170M

340M

540M

170M

340M

540M

810M

540M

810M

340M

540M

810M

170M

340M

540M

170M

340M

540M

340M

540M

810M

ThinkPad 750C

ThinkPad 750Ce

ThinkPad 750Cs

P24S-50/25

486SL-33

ThinkPad 750P

ThinkPad 755C

9545-40C 486SL-33

9545-40E 486SL-33

9545

486DX4-50/25

486DX4-75/25

486DX4-100/33

486DX4-50/25

486DX4-75/25

486DX4-100/33

ThinkPad 755CD

ThinkPad 755CDV

ThinkPad 755Ce

ThinkPad 755Cs

ThinkPad 755Cse

Color

Megabyte

Pen

Tablet

ThinkPad File

TPF

Introduction

Model

Type

Processor

Memory Hrd Dsk

ThinkPad 755CV

9545

9546

9547

9546

9547

486DX4-100/33

Pentium-90

8M/32M

8M/40M

8M/80M

8M/40M

32M/80M

16M/80M

540M

810M

540M

810M

360M

720M

810M

1.2G

810M

1.0G

1.2G

1.3G

2.1G

810M

1.0G

1.2G

810M

1.0G

1.2G

810M

1.0G

1.2G

810M

1.1G

1.2G

810M

1.1G

1.2G

3.0G

2.1G

3.0G

ThinkPad 755CV

ThinkPad 760C/CD

Pentium-120

Pentium-90

Pentium-120

Pentium-133

Pentium-150

Pentium-166

Pentium-100

Pentium-120

Pentium-133

Pentium-90

ThinkPad 760E/ED

ThinkPad 760EL/ELD

ThinkPad 760L/LD

Pentium-90

Pentium-120

Pentium-150

Pentium-166

ThinkPad 760X

ThinkPad 760XD

ThinkPad 760XL

Color

Megabyte

Pen

TPF

Tablet

ThinkPad File

IBM Mobile Systems - ThinkPad HMM Volume 3

Drive and Diskette Compatibility Matrix

The following table provides identification information for

3.5-inch drives.

Diskette

Drive

Identifying

Mark

3.5-Inch - 1.44MB

3.5-Inch - 2.88MB

1.44 on the eject button

2.88 on the eject button

The following table provides compatibility information for

3.5-inch diskettes and 3.5-inch diskette drives.

Diskette

Capacity

1.44MB

Drive

2.88MB

Drive

1.0MB

2.0MB

4.0MB

Read/Write

Not Compatible

Read/Write

The following table provides identification information for

5.25-inch diskette drives.

Diskette

Drive

Identifying

Mark

5.25-Inch - 360KB (External)

5.25-Inch - 1.2MB (Internal)

Asterisk on bezel

1.2 on the eject button

The following table provides compatibility information for

5.25-inch diskettes and 5.25-inch diskette drives.

Diskette

Capacity

360KB

Drive

1.2MB

Drive

360KB

1.2MB

Read/Write

Not Compatible

Read/Write

Note: A 360KB diskette written to or formatted on a

1.2MB drive can be read reliably only on a 1.2MB

drive.

Introduction

Important Service Information

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

Before Replacing Parts

Ensure that all diskette fixes are installed prior to

replacing any FRUs listed in this manual.

Use the following strategy to prevent unnecessary FRU

replacement and service expense:

If you are instructed to replace a FRU and that

does not correct the problem, reinstall the original

FRU before you continue.

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.

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.

IBM Mobile Systems - ThinkPad HMM Volume 3

The advanced diagnostic tests are intended to test only

IBM products. Non-IBM products or modified options can

give false errors and invalid responses.

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.

Introduction

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 Mobile Systems - ThinkPad HMM Volume 3

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.

Introduction

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.

10 IBM Mobile Systems - ThinkPad HMM Volume 3

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.

Introduction 11

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.

12 IBM Mobile Systems - ThinkPad HMM Volume 3

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.

Introduction 13

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.

14 IBM Mobile Systems - ThinkPad HMM Volume 3

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:

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.

Place removed covers and other parts in a safe

place, away from all personnel, while you are

servicing the machine.

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.

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.

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.

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.

Introduction 15

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.

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.

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

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.

16 IBM Mobile Systems - ThinkPad HMM Volume 3

Regularly inspect and maintain your electrical hand

tools for safe operational condition.

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.

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.)

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:

Electrical hazards, especially primary power (primary

voltage on the frame can cause serious or fatal

electrical shock).

Explosive hazards, such as a damaged CRT face or

bulging capacitor

Mechanical hazards, such as loose or missing

hardware

Introduction 17

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.

18 IBM Mobile Systems - ThinkPad HMM Volume 3

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:

Keep the parts in protective packages until they are

inserted into the product.

Avoid contact with other people.

Wear a grounded wrist strap against your skin to

eliminate static on your body.

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.

Introduction 19

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

El uso de controles o ajustes o la ejecución de

procedimientos distintos de los aquí especificados

20 IBM Mobile Systems - ThinkPad HMM Volume 3

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.

Introduction 21

Screw Size Chart

Use the chart below to match the size and shape of the

screws used in the computer you are servicing.

Silver

Black

Silver

Brass

Black

Brass

Silver

Brass

Silver

Black

Brass

22 IBM Mobile Systems - ThinkPad HMM Volume 3

Screw Size Chart (continued): Use the chart below

to match the size and shape of the screws used in the

computer you are servicing.

Brass

Black

Brass

Black

Brass

Black

Brass

Black

Brass

Black

Silver

Introduction 23

Screw Size Chart (continued): Use the chart below

to match the size and shape of the screws used in the

computer you are servicing.

Silver

Brass

Silver

Black

Brass

Silver

Brass

Black

Silver

Black

24 IBM Mobile Systems - ThinkPad HMM Volume 3

ThinkPad 365 (2625)

Read This First . . . . . . . . . . . . . . . . . . 27

What to Do First . . . . . . . . . . . . . . . . 28

General Checkout . . . . . . . . . . . . . . . . . 30

Memory Checkout . . . . . . . . . . . . . . . 31

Keyboard/Auxiliary Input Device Checkout . . . . 33

TrackPoint III Checkout

Audio Card Checkout

Diskette Drive Checkout

Power Systems Checkout

. . . . . . . . . . . . 34

. . . . . . . . . . . . . 34

. . . . . . . . . . . . 34

. . . . . . . . . . . 35

Power Management Features

. . . . . . . . . 38

Setup Utility . . . . . . . . . . . . . . . . . . 40

Symptom-to-FRU Index . . . . . . . . . . . . . . 41

Beep Symptoms . . . . . . . . . . . . . . . . 41

No Beep Symptoms . . . . . . . . . . . . . . 43

Error Messages . . . . . . . . . . . . . . . . 44

LCD Related Symptoms

Keyboard/TrackPoint Related Symptoms

. . . . . . . . . . . . 46

. . . . 47

Indicator Related Symptoms

Power Related Symptoms

Audio Related Symptoms

. . . . . . . . . . 47

. . . . . . . . . . . 47

. . . . . . . . . . . 48

Peripheral Device Related Symptoms . . . . . . 48

Other Symptoms . . . . . . . . . . . . . . . . 48

Intermittent Problems

Undetermined Problems

. . . . . . . . . . . . . 48

. . . . . . . . . . . . 49

Related Service Procedures . . . . . . . . . . . . 50

System Status Indicators . . . . . . . . . . . . 50

I/O Status Indicators . . . . . . . . . . . . . . 50

How to Run Diagnostics

. . . . . . . . . . . . 51

Diagnostic Test Programs . . . . . . . . . . . . . 52

Error Messages . . . . . . . . . . . . . . . . 53

Return Codes . . . . . . . . . . . . . . . . . 53

Using the Diagnostics Test Programs

. . . . . . . 54

Viewing the Test Groups . . . . . . . . . . . . 55

Stopping the Tests . . . . . . . . . . . . . . . 56

System Key Combinations . . . . . . . . . . . 57

External Keyboard Key Combinations . . . . . . 57

Product Overview (365C, CD, CS, CSD) . . . . . . 58

Product Overview (365E, ED) . . . . . . . . . . . 59

FRU Removals and Replacements . . . . . . . . . 60

1010 Rear Connector Door

1015 Foot . . . . . . . . . . . . . . . . . . 61

1020 Battery Pack . . . . . . . . . . . . . . 62

1030 SO-DIMM/Memory Board . . . . . . . . 63

. . . . . . . . . . 61

1040 Hard Disk Drive . . . . . . . . . . . . . 64

1050 Keyboard Unit . . . . . . . . . . . . . . 65

1055 Mylar Cover . . . . . . . . . . . . . . . 67

1060 Processor Card

. . . . . . . . . . . . . 68

1065 LCD Inverter Card . . . . . . . . . . . . 69

1068 LCD Panel

1070 LCD Assembly

. . . . . . . . . . . . . . . 70

. . . . . . . . . . . . . 71

1080 Sound Card . . . . . . . . . . . . . . . 72

 Copyright IBM Corp. 1997

1090 CD-ROM Drive

. . . . . . . . . . . . . 73

1100 Diskette Drive . . . . . . . . . . . . . . 74

1110 DC/DC Card

1120 Keyboard Card

. . . . . . . . . . . . . . 75

. . . . . . . . . . . . . 76

1130 LED/IR Board . . . . . . . . . . . . . . 77

1140 System Board . . . . . . . . . . . . . . 78

1150 PCMCIA Assembly

. . . . . . . . . . . 80

Locations . . . . . . . . . . . . . . . . . . . . . 81

System Front View . . . . . . . . . . . . . . . 81

System Rear View . . . . . . . . . . . . . . . 82

System Board Switch Settings

Memory Board Switch Settings . . . . . . . . . 83

Parts Listing 365C, CD, CS, CSD (2625) . . . . . 84

. . . . . . . . . 83

Parts Listing 365E, ED (2625) . . . . . . . . . . . 87

26 IBM Mobile Systems - ThinkPad HMM Volume 3

Read This First

This hardware maintenance manual contains information

for the IBM ThinkPad 365 computer.

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 startup sequence might have

been altered. If you select an incorrect drive, data or

programs can be written over.

Use only the correct FRUs. When you replace a

FRU, make sure the model of the machine and FRU

part number are correct by referring to the parts

listing.

FRUs should not be replaced because of a single,

un-reproducible failure. Single failures can occur

from a variety of reasons that have nothing to do with

a hardware defect such as electrostatic discharge or

software errors. FRU replacement should only be

considered when a recurring problem exists.

The servicer must include the following in the parts

exchange form or part return form that is attached to the

returned FRU.

1. Name and phone number of servicer.

2. Date of service.

3. Date when part failed.

4. Date of purchase.

5. Failure symptoms, error codes appearing on

display, and beep symptoms.

6. Procedure index and page number in which

failing FRU was detected.

7. Failing FRU name and part number.

8. Machine type, model number, and serial number.

9. Customer's name and address.

ThinkPad 365 (2625) 27

What to Do First

Before servicing the computer, determine whether or not

the damage applies to the warranty by referring to the

following:

Warranty Note

During the warranty period, the customer may be

responsible for repair costs if the 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

could indicate that the system was subjected to stresses

beyond normal use.

Warranty Coverage Notes

The following is not covered under warranty:

LCD panel cracked from being dropped or

applying too much force.

Scratched (cosmetic) parts.

Cracked or broken plastic parts, broken latches,

broken pins or connectors caused by excessive

force.

Damage caused by liquid spilled onto the system.

Damage caused by improperly inserting a

PCMCIA card or installation of an incompatible

card.

Damage due to foreign material in the FDD or

FDD bay.

Damage to the diskette drive caused by pressing

the diskette drive cover or inserting diskettes with

multiple labels.

Diskette eject button was bent or damaged.

Damage to the CD-ROM drive caused by

excessive force shocked or dropped.

Fuse blown by attaching non-supported devices.

Computer or hard disk could not be used

because the password was forgotten.

If the following symptoms are present, they could

indicate the damage was caused by non-warranted

activity:

Missing parts can be a symptom of unauthorized

service or modification.

HDD spindles can become noisy if subjected to

excessive force or if dropped.

Errors can be caused by exposure to strong

magnetic fields.

28 IBM Mobile Systems - ThinkPad HMM Volume 3

How to Use Error Messages: Use the error

codes or messages 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 41.

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.

Passwords: The Passwords are security features that

are used to protect the system and the hard disk data from

unauthorized access. There are two types of passwords:

User Password

Supervisor Password

How to Disable the Passwords

Important

This information is not available in this online HMM

format. See your IBM Servicer or IBM Authorized

Dealer for this procedure.

ThinkPad 365 (2625) 29

General Checkout

Use the following procedure as a guide for computer

problems.

Note: 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 failing symptoms in as much detail as

possible. Pay close attention to the error messages

on the screen.

2. Verify the symptoms by attempting to recreate the

failure by running the diagnostic test or by repeating

the same operation.

Note: To run the diagnostics, refer to “How to Run

Diagnostics” on page 51.

3. Use the following table to locate the description that

best matches the symptom, then go to the page

indicated.

Symptom

Go to

AC Adapter

“Checking the AC Adapter”

on page 36.

Audio Card

“Audio Card Checkout” on

page 34.

Battery Pack

“Checking the Battery Pack”

on page 37.

Configuration is not the

same as the installed

devices.

“How to Run Diagnostics”

on page 51.

Diskette Drive

“Diskette Drive Checkout”

on page 34.

Keyboard/Auxiliary Device

(Mouse/Pointing Device)

“Keyboard/Auxiliary Input

Device Checkout” on

page 33.

Memory related problems

Operational Charging

“Memory Checkout” on

page 31.

“Checking Operational

Charging” on page 37.

Other symptoms.

(Such as LCD problems.)

“Symptom-to-FRU Index” on

page 41, and then use

other miscellaneous

symptoms tables.

Port Replicator

“Port Replicator Power

Overload” on page 40.

POST does not complete.

No beeps/error code are

indicated.

“Symptom-to-FRU Index” on

page 41, and then use the

No Beep Symptoms table.

POST beeps, but no error

codes are displayed.

“Symptom-to-FRU Index” on

page 41, and then use the

Beep Symptoms table.

30 IBM Mobile Systems - ThinkPad HMM Volume 3

Symptom

Go to

POST detected an error and

displayed numeric error

codes.

“Symptom-to-FRU Index” on

page 41, and then use the

Numeric Error Codes table.

Power failure.

(The power indicator does

not go on or stay on.)

“Power Systems Checkout”

on page 35.

Symptoms cannot be

recreated.

(Intermittent problems.)

Use the customer reported

symptoms and go to

“Symptom-to-FRU Index” on

page 41.

TrackPoint III will not work

“TrackPoint III Checkout” on

page 34.

Memory Checkout

Depending on the model, the memory size that is available

for customer use appears differently. See the following

table for the available memory size of each card.

System

Board

8MB

Memory

Board

Optional

SO-DIMM

Extended

Memory

Switch

Setting

640KB

8MB

7168KB

11264KB

23552KB

1,2,3,4

OFF

1,2,3,4

OFF

2 ON

1,3,4

OFF

640KB

16MB

15360KB

19456KB

31744KB

1,2,3,4,

OFF

1,2,3,4

OFF

2 ON

1,3,4

OFF

Note: Refer to “Memory Board Switch Settings” on page 83

for Memory Board Switch location.

Memory errors might stop system operations, show error

messages on the screen, or hang the system. The

computer detects memory parity errors but does not

correct them.

Use the following procedure to isolate memory problems.

Memory Error Notes

Ignore any references to parity errors.

Remove any installed PCMCIA memory cards.

ThinkPad 365 (2625) 31

1. Make sure that any memory options are fully installed

into their connectors. A loose connection can cause

an error.

2. Run the diagnostics. See “How to Run Diagnostics”

on page 51.

3. If memory problems occur intermittently, use the loop

option to repeat the test.

4. FRUs should not be replaced because of a single,

un-reproducible failure. Single failures can occur from

a variety of reasons that have nothing to do with a

hardware defect such as electrostatic discharge or

software errors. FRU replacement should only be

considered when a recurring problems exits.

Flash Memory: BIOS, system setup programs, and

some diagnostic utilities are stored in flash memory.

Flash Memory Update: A flash memory update is

required for new versions.

When Updating Flash Memory

During the flash update do not:

Power-off the computer.

Disconnect the AC Adapter.

Remove the battery.

Lift the keyboard.

Press any key.

Attention

On certain systems, updating flash memory can reset

all customer’s configuration settings to the default

values. The following steps bypass the CONFIG.SYS

and AUTOEXEC.BAT files, so the customer’s

configuration setting are not reset to the default

values.

To update the flash memory:

1. Power-off the computer.

2. Install the battery pack and connect the AC Adapter.

3. Insert the update diskette in drive A.

4. Power-on the computer.

5. When the message “Starting PC DOS” appears,

press F5 to bypass the CONFIG.SYS and

AUTOEXEC.BAT.

6. At the prompt, select Country Language then press

Enter.

7. Follow the instructions on the screen.

32 IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard/Auxiliary Input Device

Checkout

Disconnect the external keyboard and mouse, then try the

internal keyboard. If the internal keyboard works correctly,

replace the external keyboard or mouse.

If the internal keyboard does not work correctly or an

unexpected character appears, make sure that the three

flexible cables extending from the keyboard are correctly

seated in the connectors on the keyboard card.

If the keyboard cables are seated correctly, run the

Keyboard Test using the IBM ThinkPad 365 Advanced

Diagnostics Diskette.

Attention

To use the IBM ThinkPad 365 Advanced Diagnostics

Diskette, you must have at least 500KB of free

memory. Be sure to read the “README.PO” file on

the IBM ThinkPad 365 Advanced Diagnostics Diskette

before using the following instructions.

1. Power-off the computer.

2. Insert the IBM ThinkPad 365 Advanced Diagnostics

Diskette into drive A.

3. Power-on the computer.

4. Follow the instructions on the screen and proceed to

the Main Menu. Allow two to four minutes for the

diagnostic programs to load.

5. At the Main Menu, select Diagnostics.

6. At the Diagnostics Menu, select Module Tests.

7. At the Module Tests Menu, select Keyboard.

8. Press Enter to run the keyboard tests.

9. Do not press any key until prompted, then follow the

instructions on the screen.

10. When the tests are completed, press Esc twice to

return to the main menu.

11. Select Exit.

If the tests detect a keyboard problem, do the following

one at a time to correct the problem. Do not replace a

non-defective FRU.

Reseat the three cables.

Replace the keyboard.

Replace the keyboard card.

Replace the system board.

The following auxiliary input devices are supported for this

computer.

Space-saver keyboard

Mouse (PS/2 compatible)

If any of the above devices do not work, reseat the cable

connector and repeat the failing operation. If the problem

ThinkPad 365 (2625) 33

does not occur again, recheck the connector. If the

problem remains, replace the device, and then the system

board.

TrackPoint III Checkout

The TrackPoint automatically compensates to adjust the

pointer sensor. During this process, the pointer moves on

the screen automatically for a short time. This self-acting

pointer movement can occur when a slight, steady

pressure is applied to the TrackPoint pointer while the

computer is powered on or while the system is running, or

re-adjustment is required because the temperature has

exceeded its normal temperature range. This symptom

does not indicate a hardware problem. No service actions

are necessary if the pointer movement stops in a short

period of time.

If either the pointing stick or the click button will not work,

do the following actions one at a time to correct the

problem. Do not replace a non-defective FRU.

Reseat the three keyboard cables.

Replace the keyboard.

Replace the keyboard card.

Replace the system board.

Audio Card Checkout

Do the following to run the audio tests.

Go to a DOS full screen, press Ctrl+Alt+F11 to

access the setup utility.

Note: The setup screen can only be accessed at a

full-screen DOS prompt.

Use the arrow keys to select Audio, then use the

space bar to toggle the audio selection to enabled

(IRQ 7).

Set the volume control to mid range.

Press Esc then F4 to save and reboot.

Listen for the sounds.

If the audio card does not produces any sound during

reboot, replace the Audio card. If the problem remains,

replace the system board.

Diskette Drive Checkout

Important

The ThinkPad 365 does not support both an internal

and external drive simultaneously.

Do the following to isolate the problem to a controller,

drive, or diskette. A scratch, write enabled, non-defective

2HD diskette is required. Make sure that the diskette does

not have more than one label attached to it. Multiple

labels can cause damage to the drive or can cause the

drive to fail.

34 IBM Mobile Systems - ThinkPad HMM Volume 3

Use the following information to test the diskette drive.

Attention

To use the IBM ThinkPad 365 Advanced Diagnostics

Diskette, you must have at least 500KB of free

memory. Be sure to read the “README.PO” file on

the IBM ThinkPad 365 Advanced Diagnostics Diskette

before using the following instructions.

1. Power-off the computer.

2. Insert the IBM ThinkPad 365 Advanced Diagnostics

Diskette into drive A.

3. Power-on the computer.

4. Follow the instructions on the screen and proceed to

the Main Menu. Allow two to four minutes for the

diagnostic programs to load.

5. At the Main Menu, select Diagnostics.

6. At the Diagnostics Menu, select Module Tests.

7. At the Module Tests Menu, select Floppy Disks.

8. Press Enter to run the Floppy Disks tests.

9. Do not press any key until prompted, then follow the

instructions on the screen.

10. When the tests are completed, press Esc twice to

return to the main menu.

11. Select Exit.

If the drive is attached through a Port Replicator and the

test detects errors, move the drive to the computer's

diskette drive connector directly, and test it again.

If an error occurs replace the diskette drive.

If no errors occur, the drive is not defective. Go to

“Port Replicator Checkout” on page 597 to isolate the

replicator problem.

If the drive is attached through a Diskette Drive Attachment

Unit, replace the unit.

Power Systems Checkout

To verify the symptom of the problem:

1. Remove the port replicator (if attached), reconnect the

AC Adapter, and replace the battery pack in the

computer.

If the computer power problem remains, do the following:

2. Remove the battery pack, external diskette drive, and

hard disk drive.

3. Connect the AC Adapter and check that power is

supplied.

4. Connect one at a time, the external diskette drive,

and hard disk drive and check that power is supplied

from each power source.

5. Disconnect the AC Adapter, remove the hard disk and

diskette drive, and install the charged battery pack;

then check that power is supplied by battery pack.

ThinkPad 365 (2625) 35

6. Remove the memory card and PCMCIA cards and

check the power supply. Reinstall one at a time and

check the power supply.

7. Disconnect the AC Adapter. Remove the CD-ROM

and Audio Card. Reinstall one at a time, connect the

AC Adapter and check that power is supplied.

If you suspect a power problem, see the appropriate power

supply check listed below.

“Checking the AC Adapter.”

“Checking Operational Charging” on page 37.

“Checking the Battery Pack” on page 37.

“Port Replicator Power Overload” on page 40.

Checking the AC Adapter: You are here

because the computer fails only when the AC Adapter is

used.

If the power problem occurs only when the port

replicator is used, replace the replicator.

If the power-on indicator does not turn on, check the

power cord of the AC Adapter for correct continuity

and installation.

If the operational charge does not work, go to

“Checking Operational Charging” on page 37.

Use the following procedure to check the adapter.

1. Unplug the AC Adapter cable from the computer and

measure the output voltage at the plug of the AC

Adapter cable. See the following figure.

Voltage (V dc)

+10.0 to +16.0

Ground

If the voltage is correct:

–

Replace the DC/DC Card.

If the problem remains, replace the system

board.

If the problem still is not corrected, go to

“Undetermined Problems” on page 49.

If the voltage is not correct, go to the next step.

2. Unplug the AC Adapter cable from the ac power

outlet and wait five minutes or longer to allow the

over voltage protection circuit to be fully discharged

and initialized.

3. Plug the AC Adapter cable into the ac power outlet.

36 IBM Mobile Systems - ThinkPad HMM Volume 3

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 defective adapter.

Checking Operational Charging: To check

operational charging, use a discharged battery pack or a

battery pack that shows an amber battery status indicator

when it is installed in the computer.

Perform operational charging. If the battery status

indicator turns orange and the battery charging indicator

turns green within two minutes, replace the AC Adapter.

Checking the Battery Pack: Battery charging will

not start until the Fuel-Gauge shows that less than 90% of

the total power remains; with this condition the battery

pack will charge to 100% of its capacity. This protects the

battery pack from being over-charged or having a

shortened life.

Before you perform the following procedure, be sure you

have the correct battery pack for this model.

1. Power-off the computer.

2. Remove the battery pack and measure the voltage

between battery terminals 2 (+) and 6 (−). See the

following figure.

3. If the voltage is less than +7.2 V dc, the battery pack

has been discharged or is defective. Recharge the

battery. If the recharging does not work, go to Step 5

on page 38 to check the charging circuit.

If the voltage is still less than +7.2 V dc after the

recharging, replace the battery.

4. If the voltage is more than +7.2 V dc, measure the

resistance between battery terminals 4 and 6. The

resistance must be 4K ohms to 30K ohms.

If the resistance is not correct, replace the battery

pack.

If the resistance is correct, replace the DC/DC card.

ThinkPad 365 (2625) 37

5. To check the charging circuit, do the following. Plug

in the AC Adapter with the battery pack removed,

then power-on the computer.

6. Measure the charging voltage between DC/DC

terminals 2 (+) and 6 (−).

7. If the voltage is less then +9.0 V dc, replace the

DC/DC card. If the voltage is more than +9.0 V dc,

the charging circuit is working correctly, replace the

battery pack.

Power Management Features

Five power management modes are provided by the

computer to save power consumption and prolong battery

power.

Standby Mode: When in standby mode the following

occurs:

The LCD backlight turns off.

The hard disk motor stops.

The CPU clock is set to the lowest speed.

Events that cause entering of standby mode:

Standby requested by the Fn key (Fn+F3).

No activity under auto-standby enabled by the

feature utility.

Events that cause exiting or resuming of standby mode:

(Resume) Any key operation.

Ring wakeup if enabled.

Suspend Mode: When in suspend mode, the

following, in addition to the four actions of standby mode,

occur:

The Audio is powered-off

The CD-ROM is powered off.

The LCD power is powered-off.

The hard disk is powered-off.

The CPU is stopped.

When the computer is powered with AC power and is used

with one of the following IBM PC cards, the computer does

not enter suspend or hibernate mode by either the LCD

suspend switch or power-management timeout; the PC

card and application program remain active.

3270 Emulation Credit Card Adapter

5250 Emulation Credit Card Adapter

Token-Ring 16/4 Credit Card Adapter

Credit Card Adapter for Ethernet

IBM Modem

In the following condition, the computer cannot enter the

suspend mode.

While the communication link is running.

38 IBM Mobile Systems - ThinkPad HMM Volume 3

Active interrupts (CD-ROM activity, etc.)

Events that cause entering of suspend mode:

Suspend mode is requested by the Fn key (Fn+F4).

The LCD is closed.

The specified time has elapsed from the last

operation with the keyboard, mouse, hard disk drive,

parallel connector, diskette drive, or the AC Adapter is

plugged in. The time is specified by Suspend Timer

in the setup program (if enabled).

If the battery condition is low the system enters the

Safe Suspend mode and the configuration/setup

information is saved. If the battery gets to critical the

battery power indicator blinks (amber) and the system

goes into the Hibernation mode.

Events that cause exiting or resuming of suspend mode:

(Resume) The LCD is opened.

(Resume) Real time clock alarm signaled.

(Resume) Ring indicator (RI) signaled by serial or

PCMCIA device.

(Resume) Any keyboard key is pressed.

(Exit) Timer conditions are satisfied to enter

hibernation mode.

Hibernation Mode: When in hibernation mode, the

following occurs:

The system status, RAM, VRAM, and setup data are

stored on the hard disk.

The system is powered-off.

When the computer is powered with AC power and is used

with one of the following IBM PC cards, the computer does

not enter suspend or hibernate mode by either the LCD

suspend switch or power-management timeout; the PC

card and application program remain active.

PCMCIA Data/FAX Modem

High Speed PCMCIA Data/FAX Modem

3270 Emulation Credit Card Adapter

5250 Emulation Credit Card Adapter

Token-Ring 16/4 Credit Card Adapter

Credit Card Adapter for Ethernet

ThinkPad 365 (2625) 39

Events that cause entering of hibernation mode:

The hibernation mode is requested by the Fn key

(Fn+F12).

Timer conditions are satisfied in suspend mode.

Critical low battery condition. The system first goes

into safe suspend mode, then when the battery

reaches critical the system goes into the hibernation

mode.

Event that causes exiting of hibernation mode.

The power-on switch is operated.

When power is turned on, the hibernation history of the

boot record on the hard disk is recognized and system

status is restored from the hard disk to resume operation.

Doze Mode: In the Doze mode, the system slows

down the central processing unit and the system uses less

power. Enable the doze mode in the setup program.

Exiting the doze mode is instantaneous by pressing any

keyboard key.

Safe Suspend: Saves the computer state, then

enters the suspend mode.

Port Replicator Power Overload: If power shut

downs occur intermittently when using a port replicator,

suspect an over-current problem. Some devices use more

power; if the maximum usage of each device occurs

simultaneously, the total current will exceed the limit,

thereby causing a power shut down. Isolate this problem

by removing one of the devices, and use the computer

under the same condition to see whether a power shut

down occurs. Do this procedure for all devices, then

determine the cause.

Setup Utility

Note

The Setup Utility is ROM-resident and can only be

started at a full-screen DOS prompt.

Do the following to run the Setup Utility.

1. Go to a DOS full screen.

2. Press Ctrl+Alt+F11.

3. Follow the instructions on the screen.

Note

When exiting the Setup Utility using Fn+6, press

Ctrl+Alt together after returning to the full-screen

DOS. This ensure the keyboard controller is in the

proper reset state.

40 IBM Mobile Systems - ThinkPad HMM Volume 3

Symptom-to-FRU Index

The Symptom-to-FRU Index lists error symptoms and

possible causes. The most likely cause is listed first.

Always begin with “General Checkout” on page 30. This

index can also be used to help you decide which FRUs to

have available when servicing a computer.

If you are unable to correct the problem using this index,

go to “Undetermined Problems” on page 49.

Notes

If you have both an error message and an

incorrect audio response, diagnose the error

message first.

Check all power supply voltages before you

replace the system board. (See “Power Systems

Checkout” on page 35.)

Beep Symptoms

Beeps symptoms are short tones or a series of short tones

separated by pauses (intervals without sound). See the

following examples.

Beep Symptom

FRU/Action

1-1-3

1. Run Setup

CMOS write/read test in

progress or failure.

2. System Board

1-1-4

1. System Board

ROM BIOS check error.

1-2-1

1. System Board

Programmable interval timer

0 test in progress or failure.

1-2-2

1. System Board

DMA channel 0 address and

count register test in

progress or failure.

1-2-3

DMA page register

write/read in progress or

failure.

1-3-1

RAM refresh verification test

in progress or failure.

1-3-3

1. RAM Memory Board

First 64K RAM chip or data

line failure, multi-bit.

2. System Board

1-4-2

1. System Board

Parity failure first 64K RAM.

1-4-3

1. System Board

Fail-safe timer failure (only

used by EISA BIOS).

ThinkPad 365 (2625) 41

Beep Symptom

FRU/Action

1-4-4

1. System Board

Software NMI port failure

(only used by EISA BIOS).

2-1-1, 2-1-2, 2-1-3

2-1-4, 2-2-1, 2-2-2

2-2-3, 2-2-4, 2-3-1

2-3-2, 2-3-4, 2-4-1

2-4-2, 2-4-3, 2-4-4

First 64K RAM chip or data

line failure on bit x.

1. RAM Memory Board

2. System Board

3-1-2

1. System Board

Master DMA register test in

progress or failure.

3-1-3

1. System Board

Master interrupt mask

failure.

3-1-4

1. System Board

Slave interrupt mask

failure.

3-2-4

1. System Board

2. Keyboard

3. Keyboard Card

Keyboard controller test in

progress or failure.

3-3-1

1. System Board

Slave DMA register test in

progress or failure.

3-3-4

Screen memory test in

progress or failure.

3-4-1

Screen initialization in

progress.

3-4-2

Screen retrace test in

progress.

4-2-1

Timer-tick interrupt test in

progress or failure.

4-2-2

1. System Board

Shutdown test in progress

or failure.

2. Processor Card

4-2-3

1. System Board

Gate A20 failure.

4-2-4

1. System Board

Unexpected interrupt in

protected mode.

2. Processor Card

4-3-1

1. RAM Memory Board

2. SO DIMM

3. System Board

RAM test of memory above

64K in progress or failure.

42 IBM Mobile Systems - ThinkPad HMM Volume 3

Beep Symptom

FRU/Action

4-3-2

1. System Board

Programmable interval timer

channel 2 test in progress

or failure.

4-3-4

1. System Board

Real-time clock test in

progress or failure.

4-4-1

Serial port test in progress

or failure.

4-4-2

Parallel port test in progress

or failure.

4-4-3

1. Processor Card

Math coprocessor test in

progress or failure.

2. System Board

No Beep Symptoms

Symptom/Error

FRU/Action

No beep during POST but

computer works correctly.

1. System Board

2. Audio card

No beep during POST and

no display.

1. See “Undetermined

Problems” on

page 49.

2. System Board

3. Audio card

4. Memory

5. See “Power Systems

Checkout” on page 35.

ThinkPad 365 (2625) 43

Error Messages

Error Message/Symptom

FRU/Action

Bus Timeout NMI,

Slot n. Type (S)hut off NMI,

(R)eboot, other keys to

continue.

1. System Board

Configuration for slot n.

1. Run Setup Utility.

Diskette drive failure

1. See “Diskette Drive

Checkout” on

page 34.

Diskette drive x failure

where x=0 or x=1.

1. See “Diskette Drive

Checkout” on

page 34.

Diskette read failure -

press F1 to retry boot (or

may also say F2 for Setup

Utility).

1. Replace diskette with

a bootable diskette

and retry.

Gate A20 failure

1. System Board

Hard disk configuration

error

1. Correct the hard disk

configuration.

Hard disk controller

failure

1. System Board

Hard Disk failure

1. Hard Disk

Hard disk failure - press

F1 to retry boot (or may

also say press F2 for

Setup Utility).

1. Check drive selection

in setup.

2. Hard Disk.

F2 to enter ROM-based

SETUP

1. Run Setup Utility.

2. Verify Configuration.

ID information mismatch

1. Run Setup Utility.

for slot n

Invalid configuration

1. Run Setup Utility.

information.

Internal cache test failed -

1. Processor Card

cache is disabled.

2. System Board

Keyboard clock line

failure.

1. Keyboard cable and

Keyboard

connection.

2. System Board

Keyboard controller

1. System Board

failure.

Keyboard data line failure.

1. System Board

Keyboard is locked.

1. Unlock the Keyboard

Keyboard stuck key

failure.

1. Locate and fix.

2. Keyboard cable and

Keyboard connection.

3. System Board

Memory failure at

1. RAM Memory Board

hex-value, read hex-value,

expecting hex-value.

44 IBM Mobile Systems - ThinkPad HMM Volume 3

Error Message/Symptom

FRU/Action

No boot device available -

press F1 to reboot or

press F2 for Setup Utility.

1. Diskette

2. Diskette Drive

3. Hard Disk

No boot sector on hard

disk.

1. Format the C drive.

Press F1 to reboot or F2

for Setup Utility.

No fail safe timer NMI

No software port NMI

No timer tick interrupt

1. System Board

Not a boot diskette - press

F1 to reboot or F2 for

Setup Utility

1. Replace diskette with

a bootable diskette.

Pointer device failure

1. Check cable

connections

2. Keyboard (TrackPoint)

3. External Mouse

Real time clock failure

Shutdown failure

1. Run Setup Utility

1. Power-off, Power-on,

Retry

2. System Board

Time of day not set - run

SETUP program

1. Run Setup Utility

Timer 2 failure

1. System Board

Unexpected HW interrupt

at address Type (R)eboot,

other keys to continue.

Hardware problem. Not

displayed if the extended

interrupt handler is not

enabled.

1. System Board

Unexpected interrupt in

protected mode

1. System Board

Unexpected SW interrupt

at address Type (R)eboot,

other keys to continue.

Error(s) in software

1. System Board

program. Not displayed if

the extended interrupt

handler is not enabled.

Unexpected type 02

interrupt at xxxxxh Type

(S)hut off NMI, (R)eboot,

other keys to continue.

Parity error occurred. Cause

undetermined.

1. System Board

Unresolved BUS Timeout

NMI, Type (S)hut off NMI,

(R)eboot, other keys to

continue. Parity error

occurred. Cause

1. System Board

2. Processor Card

undetermined.

ThinkPad 365 (2625) 45

Error Message/Symptom

FRU/Action

Unresolved memory parity

error

1. System Board

2. SO-DIMM

Type (S)hut off NMI,

(R)eboot, other keys to

continue. Parity error

occurred. Cause

3. Optional Memory

(8MB or 16MB Board)

undetermined.

xxxxxh Option ROM

checksum failure where

xxxxxh is the starting

address of the option

ROM

1. Power-off, Power-on,

Retry

2. Peripheral Card

LCD Related Symptoms

Important

The TFT LCD of the notebook computers contain over

921000 thin film transistors (TFTs). A small number

of missing, discolored or lighted dots (on all the time)

is characteristic of TFT LCD technology. Excessive

pixel problems can cause viewing concerns. The LCD

should be replaced if the number of missing or

discolored, or lighted dots in any colored background

is 21 or more.

Symptom/Error

FRU/Action

LCD backlight not

working, or

1. Reseat the LCD

connectors.

2. Inverter Card

3. LCD Assembly

4. Keyboard Card

5. DC/DC Card

LCD too dark, or

LCD brightness cannot

be adjusted, or

LCD contrast cannot

be adjusted.

LCD screen

unreadable, or

Characters missing

pels, or

1. See the preceding

important note.

2. Reseat all LCD

connectors.

Screen abnormal, or

Wrong color displayed.

3. LCD Assembly

4. System Board

5. Keyboard Card

LCD has extra horizontal or

vertical lines displayed.

1. LCD Assembly

No beep, power-on indicator

on, and a blank LCD during

POST.

1. System Board

2. DC/DC Card

3. Processor Card

46 IBM Mobile Systems - ThinkPad HMM Volume 3

Keyboard/TrackPoint Related

Symptoms

Symptom/Error

FRU/Action

Keyboard (one or more

keys) does not work.

1. Reseat the three

keyboard cables.

2. Keyboard

3. Keyboard Card

4. System Board

TrackPoint does not work.

1. Go to “TrackPoint III

Checkout” on

page 34.

2. Keyboard

3. Keyboard Card

4. System Board

Pointer moves automatically

or does not work correctly.

1. See “TrackPoint III

Checkout” on

page 34.

Indicator Related Symptoms

Symptom/Error

FRU/Action

Indicator incorrectly remains

off or on, but system runs

correctly.

1. Reseat the status

indicator cable.

2. Status Indicator

3. System Board

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

Power Related Symptoms

Symptom/Error

FRU/Action

Power shut down during

operation.

1. Go to “Power

Systems Checkout”

on page 35.

2. Battery Pack

3. Remove the battery

pack and let it cool for

two hours.

4. DC/DC Card

5. Power sources

The system will not

power-off.

1. Remove AC Adapter.

2. Remove the battery.

3. Wait 10 seconds.

4. Reconnect the AC

Adapter and try to

reproduce the error.

5. If the error remains,

replace the System

Board.

ThinkPad 365 (2625) 47

Audio Related Symptoms

The following are the audio input sources:

Line In

Mic In

System board

CD-ROM

Audio card

Note: Use either a data or music CD to check the audio

function. If the audio fails see “Audio Card Checkout” on

page 34.

Peripheral Device Related Symptoms

Symptom/Error

FRU/Action

External display does not

work correctly.

1. See “External Display

Self-Test” on

page 592.

Printer problems.

1. Run Printer Self-test.

2. System Board

3. Parallel Port Device

4. Cable

Serial or parallel port device

problems.

1. Device

2. Device Cable

3. System Board

Other Symptoms

Symptom/Error

FRU/Action

Errors occur only when Port

Replicator is used.

1. See “Port Replicator

Checkout” on

page 597.

PCMCIA slot pin is

damaged.

1. PCMCIA Socket

2. System Board

Note: If you cannot find a symptom or error in this list

and the problem remains, see “Undetermined Problems”

on page 49.

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 only be

considered when a recurring problems exits.

When analyzing the intermittent problem, do the following:

1. Run the diagnostic test for the system board in loop

mode at least 10 times.

2. If any error is detected, replace the FRU indicated.

Rerun the test to verify that no more errors exist.

48 IBM Mobile Systems - ThinkPad HMM Volume 3

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 the procedures below to isolate the

failing FRU (do not isolate non-defective FRUs).

Verify that all attached devices are supported by the

computers.

Verify that the power supply being used at the time of the

failure is operating correctly. (See “Power Systems

Checkout” on page 35.)

1. Power-off the computer.

2. Check the cables, wires, and connectors for short

circuits and open circuits. Visually check them for

damage. 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 external connectors

c. Printer, mouse, and other external devices

d. Battery pack

e. Hard disk drive

f. Diskette drive or the device attached to the

diskette drive connector

g. DIMM card

h. CD-ROM

i. Sound card

j. Port replicator

k. Keyboard

l. Keyboard card

Note: Remember that removing the hard disk

drive, or any adapter or device, might cause

configuration errors. Ignore error code 174.

4. Power-on the computer.

5. Determine if the problem has changed.

6. If the problem does not occur again, 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 non-defective FRU.

DC/DC card

System board

LCD assembly

Processor card

ThinkPad 365 (2625) 49

Related Service Procedures

This section provides information about the following:

“System Status Indicators”

“I/O Status Indicators”

“How to Run Diagnostics” on page 51

“System Key Combinations” on page 57

System Status Indicators

The system status indicators show the current computer

status in different colors (amber and green).

Symbol

Color

Meaning

Blinking

green

Speaker sounds.

Green

Amber

Battery fully charged.

1 minute or less of battery

power left.

Green

Off

Battery charging.

Battery charged. (Battery

must be installed for proper

reading.)

Amber

PC card in-use.

Amber

Green

Diskette drive in-use.

Hard disk drive in-use.

Keys in Num Lock mode.

Green

Keys in Caps Lock mode.

Green

Keys in Scroll Lock mode.

Computer in suspend mode.

Computer powered-on.

I/O Status Indicators

The I/O status indicators on the front panel of the CD-ROM

drive or the FDD drive indicate the current status.

I/O status

Amber

Green

CD-ROM in use.

Disk Drive in use.

50 IBM Mobile Systems - ThinkPad HMM Volume 3

How to Run Diagnostics

The QAPlus/PRO diagnostic program, developed by

DiagSoft for IBM, is the primary method of testing the

computer. It is unique to the ThinkPad 365 and will not

run on other models. You can use it to test the IBM

components of the system and some external devices.

The amount of time required to test all components

depends on the number of components. The more

optional adapters and devices you have attached to your

system, the longer the testing takes.

Important

Before loading the diagnostics program:

1. Go to a DOS full screen.

2. Press Ctrl+Alt+F11 to go to the setup screen.

3. Verify all peripherals devices are enabled.

4. Page Down to the second page and verify all

peripherals are enabled.

The diagnostics program is intended to test only IBM

products. Non-IBM products, prototype cards, or modified

options can give false errors and invalid system responses.

Loading the IBM ThinkPad 365 Advanced

Diagnostics Diskette

Attention

The Advanced Diagnostics Diskette Version 1.0

supports all ThinkPad 365C, CD, CS, CSD, E, and ED

models. However, this diskette refers to all

processors as DX4-100. If the diagnostics detect a

processor error, refer to the “Parts Listing” to correctly

identify the installed processor.

To use the IBM ThinkPad 365 Advanced Diagnostics

Diskette, you must have at least 500KB of free

memory. Also, be sure to read the “README.PO” file

on the Diagnostics Diskette.

1. Power-off the computer.

2. Insert the IBM ThinkPad 365 Advanced Diagnostics

Diskette into drive A.

3. Power-on the computer.

4. Follow the instructions on the screen and proceed to

the Main Menu. Allow two to four minutes for the

diagnostic programs to load.

5. At the Main Menu, select the test to run.

6. Press Enter to run the test selected.

7. After starting a test, do not press any key until

prompted, then follow the instructions on the screen.

8. When the test is completed, press Esc twice to return

to the main menu.

9. Select Exit.

ThinkPad 365 (2625) 51

Diagnostic Test Programs

The diagnostics diskette outline follows:

Main Menu:

Diagnostics

–

Quick Check

When selected runs the system quick check

diagnostics.

Module Tests

When selected displays a menu of the modules

you can select to test.

Options

When selected displays a menu of test

preferences, log results, and save script options.

System info

When selected displays a menu with selections

for system information

Reports

When selected displays a list of the reports you

can select.

Utilities

–

When selected displays a list of diagnostic

utilities.

Exit

–

When selected exits diagnostics and returns you

to the system prompt.

52 IBM Mobile Systems - ThinkPad HMM Volume 3

Error Messages

Messages generated by the software—the operating

system or application programs—generally are text

messages, but they also can be numeric. The following

are the various error messages.

POST beep codes

POST error messages

Diagnostic error messages

Software generated messages

Multiple messages

Error Message

Description

POST Beep Codes

Sounds emitted from the

speaker if POST finds a

problem. One beep

indicates POST completed

successfully. Multiple

beeps indicate a problem

was found by the POST.

POST Error Messages

Displayed when POST

detects hardware or

configuration problems.

Diagnostic Error Messages

Displayed when a test

program finds a hardware

problem.

Software Generated Error

Messages

Displayed if a problem or

conflict is found by an

application program, the

operating system, or both.

For an explanation of these

messages, refer to the

information supplied with

that software package.

Multiple Messages

The first error that occurs

can cause additional errors.

Always follow the suggested

action instructions for the

first error message

displayed.

Return Codes

For the test programs to properly determine if a test

Passed, Failed, or Aborted, the test programs check the

error-return code at test completion. To register the test

properly in the test log, the test programs must generate

one of the following return codes:

Return Code

Description

Indicates device passed its test.

Indicated device failed its test.

Indicates test stopped or aborted.

2 or greater

ThinkPad 365 (2625) 53

Using the Diagnostics Test Programs

To load the IBM ThinkPad 365 Advanced Diagnostics

Diskette, see “Loading the IBM ThinkPad 365 Advanced

Diagnostics Diskette” on page 51.

The test programs provide tests and utilities for users and

service or support professionals to troubleshoot even the

most difficult problems.

You can maneuver within the test programs by typing the

first letter of a menu choice, or using the TrackPoint III

pointer.

Throughout the test programs, pressing the first letter of an

option on a menu is the same as moving to that item with

the cursor and pressing Enter.

Using the Function Keys

Use the following keys to maneuver throughout the test

programs:

Keys

Action

Enter

Select an item, run the test module, or

run the test

Down

Moves the cursor down

Arrow (↓)

Moves the cursor up

Arrow (↑)

Calls up the appropriate Help

information. Use the up arrow key (↑)

or the down arrow key (↓) to scroll

through the information. Pressing F1

from within a Help screen provides a

help index from which you can select

different categories. One of the

important help categories is function

key usage. Pressing Esc exits Help

and returns to where you left off.

Esc

Go back to the previous menu.

Additional functions are available in the Module Tests

screen and the Test Group screen using the following

keys:

Keys

Action

Spacebar

Toggle modules on/off (or toggle tests

on/off)

View test results log

Local menu

F10

54 IBM Mobile Systems - ThinkPad HMM Volume 3

Viewing the Test Groups

As you move the cursor bar up or down in the Module

Tests menu, the right hand screen changes to show the

attributes, parameters, and the selected tests of the

corresponding Test Group. The “DIAMOND” mark

indicates a module selected for testing.

Module Testing Mode

If the Quick Check does not find a problem, or you want to

perform in-depth testing, the Module Testing mode

provides a method to run individual tests on a single

module. For example, you can run an individual test for

the diskette drive, or you can the test for all selected

modules.

To start the Module Tests:

Attention

To use the IBM ThinkPad 365 Advanced Diagnostics

Diskette, you must have at least 500KB of free

memory. Be sure to read the “README.PO” file on

the IBM ThinkPad 365 Advanced Diagnostics Diskette

before using the following instructions.

1. Power-off the computer.

2. Insert the IBM ThinkPad 365 Advanced Diagnostics

Diskette into drive A.

3. Power-on the computer.

4. Follow the instructions on the screen and proceed to

the Main Menu. Allow two to four minutes for the

diagnostic programs to load.

5. At the Main Menu, select Diagnostics.

6. At the Diagnostics Menu, select Module Tests.

7. At the Module Tests Menu, select the modules to test.

8. Use the up and down arrow keys (↑ and ↓) to move

the highlight bar from one selection to the next.

9. Press Enter to run the tests.

10. Do not press any key until prompted, then follow the

instructions on the screen.

11. Follow the instructions on the screen.

12. Select Exit.

Running Selected Module Tests

To run a selected tests for a test group:

1. Use the up and down arrow keys (↑ and ↓) to move

the cursor to your selection.

2. Press Enter.

Note: A “DIAMOND” appears next to your selection.

ThinkPad 365 (2625) 55

Running All Selected Modules

To run all selected test modules:

1. Use the down arrow key (↓) to move the cursor to the

last choice, Run All Selected Modules.

2. Press Enter.

Note: A “DIAMOND” appears next to your selection.

Changing Selected Tests in Test Groups

To change selected tests in a Test Group:

1. In the Module Tests Menu, use the up and down

arrow keys (↑ and ↓) to move the cursor to your

selection.

2. Scroll to the test you want to select or deselect.

3. Press the spacebar at the highlighted test to toggle

between select (indicated by a “DIAMOND”) and

deselect.

Note: Pressing the first letter of a test does not

activate the test, unlike menu operation.

4. Press Enter.

Running an Individual Test

To run an individual test:

1. Use the up and down arrow keys (↑ and ↓) to move

to the highlighted bar to the test you want to run.

2. Press Enter to run the test.

Note: The results of the test appear in the

lower-right-hand Test Log window. Also, if

you enabled Test Logging, the results are

recorded in the Test Log.

3. When the test completes, press Esc to return to the

Test Group Menu.

Stopping the Tests

To stop running a specific test or stop testing after you

have started a test, press Esc while the test is running.

The test pauses at the first possible opportunity, and the

Skip/Abort Test Menu appears with the following options:

Option

Action

Continue

The test program begins testing where

it left off.

Skip to next test

The test program skips the current test,

but remaining tests for the selected

Module Tests continue.

Skip to next

group

The test program skips the remaining

tests in the current test group.

Abort all tests

The test program stops and returns to

the previous menu.

56 IBM Mobile Systems - ThinkPad HMM Volume 3

System Key Combinations

The following table shows the system 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.

Key

Description

Combinations

Ctrl+Alt+F11

Accesses the system setup screen

from any full-screen DOS program.

Fn+F2

Displays the fuel gauge.

Standby mode invocation.

Suspend mode invocation.

Toggles LCD/SIMUL/CRT.

Toggles normal/reverse video.

Hibernation mode invocation.

Speaker enable.

Fn+F3

Fn+F4

Fn+F7

Fn+F8

Fn+F12

Fn+PgUp

Fn+PgDn

Speaker disable.

External Keyboard Key Combinations

The following table shows the external keyboard

combinations used with the IBM ThinkPad Space Saver

Keyboard.

Key

Description

Combinations

Ctrl+Alt+F2

Ctrl+Alt+F4

Ctrl+Alt+F7

Ctrl+Alt+F12

Ctrl+Alt+F11

Fuel gauge display.

Suspend Mode invocation.

Toggles LCD/SIMUL/CRT.

Hibernation invocation.

Accesses setup and Power

Management screens.

Attention

To avoid possible conflicts with certain software

applications, you might need to disable these hot-key

combinations. The Ctrl+Alt+Right-Shift-Key toggles

the hot-keys On and Off for the external keyboard.

ThinkPad 365 (2625) 57

Product Overview (365C, CD, CS, CSD)

The following provides an overview of the ThinkPad 365C,

365CD, 365CS, and 365CSD system features.

Feature

Description

Processor

80486 DX4 75MHz

AT/ISA Bus

Bus

Architecture

Memory

(Standard)

8MB Memory Board

16MB Memory Board

Memory

4MB, 8MB, or 16MB SO-DIMM

(Optional)

Memory

24MB

(Maximum)

CMOS RAM

Video

128 Bytes

1MB Video RAM

TFT or DSTN LCD color, supports

from 256 up to 65,536 colors.

VGA (640 x 480 resolution)

Brightness control

Contrast control (DSTN Only)

Diskette Drive

1.44MB, 3.5-inch (Removable)

1.44MB, 3.5-inch 3-Mode (Japan)

Hard Disk

Drive

2.5-Inch (Removable)

340MB Hard Disk Drive

540MB Hard Disk Drive

720MB Hard Disk Drive

810MB Hard Disk Drive

1.08GB Hard Disk Drive

Optional

CD-ROM

5.25-Inch CD-ROM (2X) Drive

(365CD, 365CSD Models Only)

PCMCIA

One Type-III

or Two Type-II

Keyboard

85-key, 86-key, or 90-key

TrackPoint

12 Function Keys

Audio

16-Bit (365CD, 365CSD Only)

Infrared (IR)

IR Transceiver supports wireless file and

data transfer.

58 IBM Mobile Systems - ThinkPad HMM Volume 3

Product Overview (365E, ED)

The following provides an overview of the ThinkPad 365E

and 365ED system features.

Feature

Description

Processor

IBM 5x86C 100MHz

AT/ISA Bus

Bus

Architecture

Memory

(Standard)

8MB Memory Board

16MB Memory Board

Memory

(Option)

4MB, 8MB, or 16MB SO-DIMM

Memory

24MB

(Maximum)

CMOS RAM

Video

128 Bytes

1MB Video RAM

TFT or DSTN LCD color, supports

from 256 up to 65,536 colors.

VGA (640 x 480 resolution)

Brightness control

Contrast control (DSTN Only)

Diskette Drive

1.44MB, 3.5-inch (removable)

1.44MB, 3.5-inch 3-Mode (Japan)

Hard Disk

Drive

2.5-inch (removable)

Optional

CD-ROM

5.25-Inch CD-ROM (4X) Drive

(365ED Model Only)

PCMCIA

One Type-III

or Two Type-II

Keyboard

85-key, 86-key, or 90-key

TrackPoint

12 Function Keys

Audio

16-Bit (356ED Only)

Infrared (IR)

IR Transceiver supports wireless file and

data transfer.

ThinkPad 365 (2625) 59

FRU Removals and Replacements

This section contains information about removals and

replacements.

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.

An electrostatic discharge (ESD) strap must be used

to establish personal grounding.

Do not damage any parts. Only certified, trained

personnel should service the computer.

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 removing

the failing FRU, they are listed at the top of the page.

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.

When replacing a FRU, use the correct screw size as

shown in the procedures.

Safety Notice 1: Translation on page 8

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 3: Translation on page 10

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.

Safety Notice 8: Translation on page 14

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.

60 IBM Mobile Systems - ThinkPad HMM Volume 3

1010 Rear Connector Door

Open the door, then push down on the center of the door

to remove it.

1015 Foot

To replace the foot:

Align the foot in the open position with one pivot pin

in its hinge in the cover base.

Press the other pivot pin into position by rotating the

foot as shown.

ThinkPad 365 (2625) 61

1020 Battery Pack

Disconnect the AC Adapter.

Open the computer.

Release the keyboard latches and raise the keyboard.

Be careful the computer does not fall over backwards

as you remove the battery.

62 IBM Mobile Systems - ThinkPad HMM Volume 3

1030 SO-DIMM/Memory Board

Battery Pack (1020)

To remove the optional SO-DIMM, release the latches as

shown, then remove the SO-DIMM card.

ThinkPad 365 (2625) 63

1040 Hard Disk Drive

Battery Pack (1020)

Memory Board (1030)

Attention

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.

64 IBM Mobile Systems - ThinkPad HMM Volume 3

1050 Keyboard Unit

Battery Pack (1020)

Attention

During removal and replacement procedures, pay

special attention to the LCD Suspend Switch .2/. Be

sure the LCD Suspend Switch actuator is properly

aligned with the hole in the cover.

Procedure continues on the following page.

ThinkPad 365 (2625) 65

1. Remove the plastic upper cover as shown.

2. Lift the keyboard and locate the cables as shown.

Attention

The keyboard cables are fragile and can be damaged.

Do not pull on the keyboard cables. Pull on the

connectors only.

Track Point III Cable

Important

When replacing the keyboard, check that the

three cables are clean, and inserted straight and

fully into the connectors.

Test all keyboard keys before returning the

computer to the customer.

When replacing the top cover:

–

Be sure the tabs on the back of the top

cover are seated in the bottom of the LCD

display

–

Be sure the LCD Suspend Switch actuator is

properly aligned with the hole in the cover.

66 IBM Mobile Systems - ThinkPad HMM Volume 3

1055 Mylar Cover

Note

The ThinkPad 365C, CD, CS, and CSD Model mylar

cover is not secured with screws and can be easily

removed after raising the keyboard.

The ThinkPad 365E, ED Model mylar cover is secured

with screws. The following procedure is for ThinkPad

365E, ED Models only.

Battery Pack (1020)

Keyboard Unit (1050)

1. Remove the two screw as shown.

2. Carefully remove the mylar cover.

Attention

During removal and replacement procedures, make

sure the Mylar Cover does not interfere with the LCD

Suspend Switch.

ThinkPad 365 (2625) 67

1060 Processor Card

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

68 IBM Mobile Systems - ThinkPad HMM Volume 3

1065 LCD Inverter Card

Battery Pack (1020)

Note

Screws shown above are 8 mm long.

ThinkPad 365 (2625) 69

1068 LCD Panel

Battery Pack (1020)

Note

Screws shown above are 8 mm long.

70 IBM Mobile Systems - ThinkPad HMM Volume 3

1070 LCD Assembly

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

Attention

Make note of the location and placement of ground

points and tape. Replace tape to its original position.

Note

Screws shown above are 6 mm long.

Note

Screws shown above are 8 mm long.

ThinkPad 365 (2625) 71

1080 Sound Card

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

LCD Assembly (1070)

Attention

During replacement, make sure the microphone (A),

speaker (B), and sound card (C) cable connections

are correct.

Note

Screws shown above are 6 mm long.

72 IBM Mobile Systems - ThinkPad HMM Volume 3

1090 CD-ROM Drive

Battery Pack (1020)

Keyboard (1050)

LCD Assembly (1070)

Sound Card (1080)

Attention

During replacement, make sure that all connectors are

properly aligned and seated.

Note

Screws shown above are 6 mm long.

ThinkPad 365 (2625) 73

1100 Diskette Drive

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

LCD Assembly (1070)

Sound Card (1080)

Attention

During replacement, make sure that all connectors are

properly aligned and seated.

Note

Screws shown above are 6 mm long.

74 IBM Mobile Systems - ThinkPad HMM Volume 3

1110 DC/DC Card

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

LCD Assembly (1070)

Sound Card (1080)

Attention

During replacement, make sure the DC/DC Card

connectors are properly aligned with the system board

and fully seated.

Note

Screws shown above are 6 mm long.

ThinkPad 365 (2625) 75

1120 Keyboard Card

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

LCD Assembly (1070)

1. Disconnect all attached cable connectors.

2. Release the locking tab at the right rear of the

keyboard card.

3. Remove the keyboard card.

76 IBM Mobile Systems - ThinkPad HMM Volume 3

1130 LED/IR Board

Battery Pack (1020)

Keyboard (1050)

Mylar Cover (1055)

LCD Assembly (1070)

Note

Screws shown above are 5 mm long.

ThinkPad 365 (2625) 77

1140 System Board

Battery Pack (1020)

Memory Board (1030)

Hard Disk Drive (1040)

Keyboard Unit (1050)

Mylar Cover (1055)

LCD Assembly (1070)

Sound Card (1080)

Diskette Drive (1100)

DC/DC Board (1110)

Keyboard Card (1120)

LED/IR Board (1130)

Attention

The system board fits very tightly in the bottom cover.

Pay special attention to the PCMCIA eject buttons,

audio connectors, and I/O connectors when removing

and replacing the system board.

Note

Screws shown above are 6 mm long.

Procedure continues on the following page.

78 IBM Mobile Systems - ThinkPad HMM Volume 3

Important

If you replace the system board FRU, do the following

to update the system setup program.

1. Power-on the computer.

2. Go to a DOS full screen.

3. Press Ctrl+Alt+F11 to access the setup screen.

4. Use the arrow keys to select Personalization.

5. Press Tab to edit.

6. At the Greeting screen, type in the required

information.

7. Press F3 to save.

8. Press Esc to access Exiting Setup.

9. Press F4 to save settings and reboot.

ThinkPad 365 (2625) 79

1150 PCMCIA Assembly

Battery Pack (1020)

Memory Board (1030)

Hard Disk Drive (1040)

Keyboard Unit (1050)

LCD (1060)

Sound Card (1080)

CD-ROM (1090)

Diskette Drive (1100)

DC/DC Board (1110)

Keyboard Card (1120)

LED/IR (1130)

System Board Assembly (1140)

Note

Screws shown above are 6 mm long.

80 IBM Mobile Systems - ThinkPad HMM Volume 3

Locations

System Front View

.1/ Color LCD Screen

.2/ Contrast Control

.3/ Brightness Control

.4/ Status Indicator

.5/ Built in Microphone

.6/ LCD Suspend Switch

.7/ PCMCIA Release Levers

.8/ PCMCIA Slots

.9/ Locking Device Keyhole

.1ð/ LCD and Keyboard Latch

.11/ Keyboard

.12/ Click Buttons

.13/ CD-ROM or Diskette Drive

.14/ Mechanical CD-ROM Eject Button

.15/ Electronic CD-ROM Eject Button

.16/ Fn Key

.17/ TrackPoint

.18/ Speaker Volume Control

.19/ Built in Speaker

ThinkPad 365 (2625) 81

System Rear View

.1/ LCD and Keyboard Latch

.2/ Power Switch

.3/ Microphone/Line-In Jack

.4/ Line-in Jack

.5/ Line-out Headphone Jack

.6/ Power Jack

.7/ MIDI/Joystick Port

.8/ External Diskette Drive Connector

.9/ Parallel Connector

.1ð/ Infrared (IR) Port

.11/ Serial Connector

.12/ Rear Door

.13/ External Display Connector

.14/ External Keyboard/Mouse Connector

.15/ Port Replicator Connector

82 IBM Mobile Systems - ThinkPad HMM Volume 3

System Board Switch Settings

IBM 5X86

DX4-75

N/A

3.4V

3.45V

3.6V

Default

Memory Board Switch Settings

ThinkPad 365 (2625) 83

Parts Listing 365C, CD, CS, CSD (2625)

84 IBM Mobile Systems - ThinkPad HMM Volume 3

System Unit - ThinkPad 365C, CD, CS, CSD Only

Important

The following FRUs are for ThinkPad 365C, CD, CS,

and CSD models only. For ThinkPad 365E and

365ED models, see “Parts Listing 365E, ED (2625)”

on page 87.

Index FRU

LCD Assembly, 10.4-Inch DSTN

75H7620

(LCD Cover Kit, Panel, Inverter, Cable)

1a LCD Cover Kit, 10.4-Inch DSTN

1b LCD Panel, 10.4-Inch DSTN

1c Inverter Board, 10.4-Inch DSTN

1d Cable Assembly, 10.4-Inch DSTN

41H9818

41H7463

42H4049

42H4051

75H7621

LCD Assembly, 10.4-Inch TFT

(LCD Cover Kit, Panel, Inverter, Cable)

1a LCD Cover Kit, 10.4-Inch TFT

1b LCD Panel, 10.4-Inch TFT

1c Inverter Board, 10.4-Inch TFT

1d Cable Assembly, 10.4-Inch TFT

- Order FRU 75H7621

41H9819

41H7464

42H4055

Keyboard (U.S. Only)

Mylar Cover

41H9789

- See “Base Assembly (with Parts Kit)”

8MB Memory Board

Memory Board Insulated Bracket (10)

4MB RAM Card (SO-DIMM)

88G1262

75H7624

92G7290

92G7296

41H7436

4a 16MB RAM Card (SO-DIMM)

Keyboard Card

Hard Disk Drive

- 340MB Hard Disk Drive

- 540MB Hard Disk Drive

- 720MB Hard Disk Drive

- 810MB Hard Disk Drive

- 1.08GB Hard Disk Drive

PCMCIA Socket Assembly

Processor, 80486-DX4 75MHz

System Board (with PCMCIA Socket)

- 512K VRAM System Board

- 1MB VRAM System Board

Battery Pack

02K0485

02K0486

85G8371

07H0392

39H2221

75H7622

88G1249

76H2986

76H2984

41H7438

76H3079

75H7609

Lower Cover Assembly

Lower Cover Rubber Feet (2)

DASD Devices

- Internal Diskette Drive Assembly

- External Diskette Drive with Cable

- CD-ROM (2X) Drive

Volume Control Card

LED/IR Board

41H7444

75H7572

41H7446

41H7434

41H7443

41H7433

41H7449

41H7437

75H7573

85G6698

25H2207

75H7576

DC/DC Board

Sound Card (16-Bit)

Sound Card (No Audio)

Upper Cover (with Screws, Gasket)

AC Adapter (35W Universal)

AC Power Cord (6-Inch - U.S.)

Game Port Cable

ThinkPad 365 (2625) 85

Index FRU

Base Assembly (With Parts Kit)

41H7432

- Upper Cover Bracket with Speaker,

- Power Switch Knob, Power Bracket,

- Support Bracket, Misc. Rubber Parts.

- TrackPoint Caps (2), IR Lens

Plastic Door/Bezel Package

41H7452

75H7575

- PCMCIA, I/O, Modem, CD-ROM, FDD

- Replicator, Misc. Rubber Parts

Flat Plastic Cable Kit

- DSTN, TFT, CD-ROM, Internal FDD

Replicator Base Assembly

Replicator Cable Cover

Mini-Replicator Assembly

Miscellaneous Parts/Screws Kit

41H7457

41H7458

75H7528

41H7456

- CD-ROM Removal Pin, Washers, Hex Nuts,

- Misc. Rubber Parts, Various Mylar Pieces,

- Keyboard Knobs, Power Knob, Rubber Pads

- Diskette Drive Brackets, Hard Disk Brackets

- Memory Board Bracket, Power Bracket

- Screw M2.5x3.5 (4), Screw M2x4 (6),

- Screw M3x4 (4), Screw M3x6 (4)

- Screw M2x15 (2), Screw M2x7 (4)

- Screw M2x5 pan (16), Screw M3x6 pan (4)

- Screw M3x6 binding (4)

TrackPoint Cap Kit

84G6536

86 IBM Mobile Systems - ThinkPad HMM Volume 3

Parts Listing 365E, ED (2625)

ThinkPad 365 (2625) 87

System Unit - ThinkPad 365E, 365ED Only

Important

The following FRUs are for ThinkPad 365E and

365ED models only. For ThinkPad 365C, CD, CS,

and CSD models, see “Parts Listing 365C, CD, CS,

Nokia 6086 User Manual
Motorola MOTO W396 User Manual
LG Electronics P500H User Manual
LG Electronics GB210 User Manual
Kenwood KDC 222S User Manual
JVC KD S31 User Manual
JVC KD R302 User Manual
DeLonghi BCO110 User Manual
Craftsman 987799601 User Manual
Bunn B10Series User Manual