IBM Laptop 380Z User Manual
S10L-9624-00  
IBM Mobile Systems  
ThinkPad 380Z (2635) Computer  
Hardware Maintenance Manual  
August 1998  
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ThinkPad 380Z  
Read This First . . . . . . . . . . . . . . . . . .  
Screw Tightening Information . . . . . . . . . .  
Product Overview . . . . . . . . . . . . . . . . .  
3
4
8
9
Checkout Guide  
. . . . . . . . . . . . . . . . .  
Audio Checkout . . . . . . . . . . . . . . . . 10  
Diskette Drive Checkout . . . . . . . . . . . . 10  
Fan Checkout . . . . . . . . . . . . . . . . . 11  
Keyboard or Auxiliary Input Device Checkout . . 11  
Memory Checkout . . . . . . . . . . . . . . . 12  
Power Systems Checkout  
Status Indicator Checkout  
. . . . . . . . . . . 13  
. . . . . . . . . . . 16  
System Board and CPU Card Checkout . . . . . 16  
TrackPoint Checkout . . . . . . . . . . . . . . 16  
Optional Device Checkout . . . . . . . . . . . . . 18  
Port Replicator Checkout . . . . . . . . . . . . 18  
External Monitor Self-Test  
Power Management Features  
. . . . . . . . . . . 18  
. . . . . . . . . . . 20  
Standby Mode . . . . . . . . . . . . . . . . . 20  
Suspend Mode  
Hibernation Mode  
. . . . . . . . . . . . . . . . 20  
. . . . . . . . . . . . . . . 21  
Port Replicator Power Overload  
. . . . . . . . 22  
Symptom-to-FRU Index . . . . . . . . . . . . . . 23  
Numeric Error Codes . . . . . . . . . . . . . . 23  
Beep Symptoms . . . . . . . . . . . . . . . . 28  
Function-Related Symptoms  
Indicator-Related Symptoms  
. . . . . . . . . . 29  
. . . . . . . . . . 29  
Infrared-Related Symptoms . . . . . . . . . . . 29  
Keyboard- or TrackPoint-Related Symptoms . . . 30  
LCD-Related Symptoms  
Peripheral-Device-Related Symptoms . . . . . . 31  
Power-Related Symptoms . . . . . . . . . . . 31  
Other Symptoms . . . . . . . . . . . . . . . . 32  
. . . . . . . . . . . . 30  
Intermittent Problems  
Undetermined Problems  
. . . . . . . . . . . . . 32  
. . . . . . . . . . . . 32  
Running the Diagnostics . . . . . . . . . . . . . . 34  
PC Card (PCMCIA) Slots Test  
Universal Serial Bus (USB) Test  
. . . . . . . . . 35  
. . . . . . . . 35  
Displaying the Error Log . . . . . . . . . . . . 35  
Checking the Installed Devices List . . . . . . . 35  
Diagnostic Error Codes  
. . . . . . . . . . . . 36  
Related Service Procedures . . . . . . . . . . . . 39  
Status Indicators . . . . . . . . . . . . . . . . 39  
Password Combinations  
Running a Low-Level Format . . . . . . . . . . 40  
Fn Key Combinations . . . . . . . . . . . . . 41  
. . . . . . . . . . . . 40  
FRU Removals and Replacements . . . . . . . . . 42  
Important Notice . . . . . . . . . . . . . . . . 42  
FRU Service Procedures . . . . . . . . . . . . 43  
Removal Reference  
1010 DIMM Card and Backup Battery  
1020 Battery Pack . . . . . . . . . . . . . . 46  
. . . . . . . . . . . . . . 44  
. . . . . 45  
Copyright IBM Corp. 1998  
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1030 Hard Disk Drive . . . . . . . . . . . . . 47  
1040 Keyboard Unit . . . . . . . . . . . . . . 49  
1050 Keyboard and Speakers . . . . . . . . . 52  
1060 Diskette Drive Assembly or CD-ROM Drive  
Assembly  
1070 Diskette Drive and CD-ROM Drive  
1080 LCD Unit . . . . . . . . . . . . . . . . 60  
1090 Fan Assembly, CPU Card, and Thermal  
Rubber . . . . . . . . . . . . . . . . . . . 63  
1100 Upper Shield Case . . . . . . . . . . . 66  
1110 Box Speaker and Microphone . . . . . . 67  
1120 DC/DC Card . . . . . . . . . . . . . . 69  
1130 System Board and PC Card Slot . . . . . 71  
. . . . . . . . . . . . . . . . . . 55  
. . . . 56  
1140 Battery Pack Latch  
2010 LCD Front Cover  
. . . . . . . . . . . 73  
. . . . . . . . . . . . 74  
2020 LCD Inverter Card . . . . . . . . . . . . 76  
2030 LCD Panel . . . . . . . . . . . . . . . 77  
2040 LCD Misc. Parts . . . . . . . . . . . . . 79  
2050 LCD Cable . . . . . . . . . . . . . . . 81  
3010 ThinkPad Port Replicator with Advanced  
EtherJet Feature . . . . . . . . . . . . . . . 82  
Locations . . . . . . . . . . . . . . . . . . . . . 84  
Front View  
. . . . . . . . . . . . . . . . . . 84  
Bottom View . . . . . . . . . . . . . . . . . . 85  
Rear View . . . . . . . . . . . . . . . . . . . 86  
Parts List . . . . . . . . . . . . . . . . . . . . . 87  
Hard Disk Drive and CD-ROM/Diskette Drive  
Assembly  
LCD Assembly . . . . . . . . . . . . . . . . . 91  
Miscellaneous and Option Parts List . . . . . . 94  
. . . . . . . . . . . . . . . . . . 90  
Notices . . . . . . . . . . . . . . . . . . . . . 100  
Trademarks . . . . . . . . . . . . . . . . . 100  
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Read This First  
Before you go to the checkout guide, be sure to read this  
section.  
Important Notes  
Only certified trained personnel should  
service the computer.  
Read FRU Removal and Replacement  
procedures before replacing any FRUs.  
Be extremely careful during write operations  
such as copying, saving, or formatting.  
Drives in the computer that you are servicing  
might have been rearranged or the drive start-up  
sequence might have been altered. If you select  
an incorrect drive, data or programs might be  
overwritten.  
Replace FRUs only for the correct model.  
When you replace a FRU, make sure the model  
of the machine and FRU part number are correct  
by referring to the FRU parts list.  
A FRU should not be replaced because of a  
single, unreproducible failure. Single failures  
can occur from a variety of reasons that have  
nothing to do with a hardware problem, such as:  
cosmic radiation, electrostatic discharge, or  
software errors. FRU replacement should be  
considered only when a recurring problem exists.  
If this is suspected, clear the error log and run  
the test again. Do not replace any FRUs if log  
errors do not reappear.  
Be careful not to replace a nondefective FRU.  
ThinkPad 380Z  
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Screw Tightening Information  
Loose screws can cause a reliability problem. The IBM  
ThinkPad computer addresses this problem with  
nylon-coated screws. Tighten screws as follows:  
Plastic to plastic  
Turn an additional 90 degrees after the screw head  
touches the surface of the plastic part:  
Logic card to plastic  
Turn an additional 180 degrees after the screw head  
touches the surface of the logic card:  
Torque driver  
If you have a torque driver, refer to the “Torque”  
instruction with each step.  
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. Whatever caused 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 23.  
Port Replicator Problems: If you suspect a  
problem with the port replicator, see “Port Replicator  
Checkout” on page 18.  
How to Diagnose Multiple FRUs: When the  
adapter or the device has more than one FRU, the error  
code could be caused by any of them. Before replacing  
multiple FRUs, try removing or exchanging each FRU, one  
by one in the designated sequence, to see if the symptoms  
change.  
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What to Do First: The service personnel must fill in  
the following information in the parts exchange form or  
parts return form that is attached to the returned FRU:  
1. Name and phone number of service personnel  
2. Date of service  
3. Date when the part failed  
4. Date of purchase  
5. Failure symptoms, error codes appearing on the  
display, and beep symptoms  
6. Procedure index and page number in which the  
failing FRU was detected  
7. Failing FRU name and the part number  
8. Machine type, model number, and serial number  
9. Customer's name and address  
Before checking problems with the computer, determine  
whether the damage is covered under the warranty by  
referring to the following:  
Note for Warranty: During the warranty period, the  
customer may be responsible for repair costs if the  
computer damage was caused by misuse,  
accident, modification, unsuitable physical or  
operating environment, or improper maintenance by  
the customer. The following list provides some  
common items that are not covered under warranty  
and some symptoms that may indicate the system  
was subjected to stresses beyond normal use:  
The following is not covered under the warranty:  
LCD panel cracked by applying excessive force  
or by being dropped  
Scratched (cosmetic) parts  
Cracked or broken plastic parts, broken latches,  
broken pins, or broken connectors caused by  
excessive force  
Damage caused by liquid spilled into the system  
Damage caused by improperly inserting a PC  
Card or installing an incompatible card  
Damage caused by foreign material in the FDD  
Diskette drive damage caused by pressing the  
diskette drive cover or inserting diskettes with  
multiple labels  
Damaged or bent diskette eject button  
CD-ROM drive damage caused by shock from  
excessive force, or by being dropped  
Fuses blown by attaching a nonsupported device  
Forgotten computer password (making the  
computer unusable)  
ThinkPad 380Z  
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The following symptoms might indicate damage  
caused by nonwarranted activities:  
Missing parts may be a symptom of unauthorized  
service or modification.  
HDD spindles can become noisy from being  
subjected to excessive force or from being  
dropped.  
I9990303 errors can be caused by exposure to  
strong magnetic fields.  
Disabling the Power-On Password:  
When Only the Power-on Password is Set.  
1. Power off the computer.  
2. Turn the computer upside down.  
3. Loosen the memory-slot cover screw 1 , and  
remove the memory-slot cover 2 .  
4. Short the power-on password jumper pads 3 .  
3
1
5. Power on the computer and wait until the POST  
ends. The password is cleared.  
6. Reinstall the memory-slot cover, and turn the  
computer right side up.  
7. Verify that the password prompt does not  
appear.  
8. To reactivate the password, set the password  
again.  
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When Both Power-on Password and Supervisor  
Password are Set.  
1. Power off the computer.  
2. Press and hold F1; then power on the computer.  
After a few seconds, the password prompt  
appears.  
3. Enter your supervisor password. The  
Easy-Setup Main Menu appears.  
4. Select Password and then Power on. A  
rectangular box appears.  
5. Enter your supervisor password and press the  
Space bar once.  
6. Press Enter twice.  
7. Select Exit.  
8. Select Restart on the Easy-Setup Main Menu  
and wait until the POST ends.  
9. Reinstall the memory-slot cover, and turn the  
computer right side up.  
Verify that the password prompt does not appear.  
To reactivate the password, set the password again.  
Reset Switch: The Reset switch resets the system  
regardless of the microcode status and forces a power off.  
Use this push button to power off when power is not  
completely off or when the microcode is in a hung state.  
ThinkPad 380Z  
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Product Overview  
The following table is an overview of the system features  
of the IBM ThinkPad 380Z computer.  
Feature  
Description  
2635-Hxx  
Processor  
Intel Pentium II 233 MHz  
2635-Jxx  
Intel Pentium II 300 MHz  
PCI Bus  
32MB (on the system board)  
Bus Architecture  
Memory  
(Standard)  
Memory (Option)  
CMOS RAM  
LCD  
Maximum of 96MB.  
242 bytes  
2635-Hxx/Jxx  
13.3-inch, 16M colors, 1024×768  
pixel TFT color LCD  
Diskette Drive  
(Internal)  
1.44 MB (3-mode), 3.5-inch  
CD-ROM Drive  
Hard Disk Drive  
10×—24×  
2635-Hxx/Jxx  
4.0GB, 2.5-inch, IDE interface  
I/O Port  
Serial  
Parallel  
USB  
External monitor  
Headphone  
Microphone  
Port replicator  
Audio  
16-bit audio  
Internal speakers  
Internal microphone  
Mechanical volume  
Infrared Transfer  
PC Card  
IrDA 1.1  
One Type III  
or two Type I / Type II  
CardBus support  
ZV card support  
AC Adapter  
56Watt type  
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Checkout Guide  
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 symptoms in detail.  
2. Verify the symptoms by running the diagnostic test to  
re-create the same error or by repeating the same  
operation.  
Note:  
To run the diagnostic test, refer to “Running  
the Diagnostics” on page 34.  
If the symptoms occur at irregular intervals  
and cannot be re-created (and therefore  
cannot be verified), go to “Symptom-to-FRU  
Index” on page 23; then go to “Intermittent  
Problems” on page 32.  
3. Match the verified symptoms with the following table  
and determine the page to go to.  
Verified Symptoms  
Go To  
Power failure. (The  
power indicator does not  
go on or stay on.)  
“Power Systems  
Checkout” on page 13.  
POST does not  
complete. No beeps or  
error codes are  
displayed.  
“Symptom-to-FRU  
Index” on page 23, and  
then go to “No Beep  
Symptoms” on page 28.  
The configuration is not  
the same as the  
installed devices.  
“Checking the Installed  
Devices List” on  
page 35.  
POST beeps, but no  
error codes are  
displayed.  
“Symptom-to-FRU  
Index” on page 23, and  
then go to “Beep  
Symptoms” on page 28.  
POST detected an error  
and displayed numeric  
error codes.  
“Symptom-to-FRU  
Index” on page 23, and  
then go to “Numeric  
Error Codes” on  
page 23.  
The diagnostic test  
detected an error and  
displayed a FRU code.  
“FRU Codes” on  
page 38.  
ThinkPad 380Z  
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Verified Symptoms  
Go To  
Other symptoms (such  
as LCD monitor  
problems).  
“Symptom-to-FRU  
Index” on page 23, and  
then go to “Other  
Symptoms” on page 32.  
Audio Checkout  
1. Go to the diagnostic menu by selecting Test in the  
Easy-Setup menu.  
2. Select Audio and run the diagnostic tests.  
3. If the test detects an audio problem, replace the  
system board.  
Diskette Drive Checkout  
This checkout is to isolate the problem to a controller,  
drive, or diskette. A write-enabled, blank, formatted 2HD  
diskette is required.  
FDD-1 represents a diskette drive in the ThinkPad  
computer.  
Attention  
Make sure that the diskette does not have more than  
one label pasted on its surface. Inserting diskettes  
with multi-layered labels into the drive can damage it.  
Take the following procedure to select the test device:  
1. Click on Test in the Easy-Setup menu.  
2. Press Ctrl+A to enter the advanced diagnostic menu.  
The ThinkPad FRU Connections window appears.  
3. Click on Exit The keyboard layout appears on the  
screen.  
4. Click on Exit.  
5. Click on FDD-1.  
6. Type Y (Yes) to the question that appears on the  
screen. Insert a blank diskette into the drive when  
instructed.  
7. Press Enter to run the diskette drive test.  
a. If the controller test detects an error and FRU  
code 10 appears, replace the system board.  
b. If the controller test runs without any errors, the  
drive read/write tests start automatically.  
c. If the drive read/write test detects an error and  
either FRU code 50 for FDD-1 appears, replace  
the drive.  
If the drive is attached to a port replicator, go to  
“Port Replicator Checkout” on page 18 to isolate  
the replicator. Otherwise, go on to the next step.  
8. If the drive is attached through a port replicator, go to  
the service manual of the port replicator to isolate the  
problem.  
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9. If no error occurs when you test the formatted  
diskette, suspect the diskette that the customer used  
when reporting the problem.  
Fan Checkout  
To check the fan, listen for the fan. If you cannot hear it  
running at power-on, replace the fan. If you can hear it  
running but not steadily, run the diagnostic test as follows:  
1. Start Easy-Setup.  
2. Click on Test.  
3. Press Ctrl+A to enter the advanced diagnostic mode.  
The ThinkPad Connection windows appear.  
4. Click on Exit. The keyboard layout appears on the  
screen.  
5. Click on Exit again.  
6. Click on System Board then press Enter to run the  
test.  
Follow the instructions that appear on the screen. If  
the test detects a fan problem, replace it.  
Keyboard or Auxiliary Input Device  
Checkout  
Remove any external keyboard before testing the built-in  
keyboard.  
If the keyboard does not work or an unexpected character  
appears, make sure that the flexible cable extending from  
the keyboard is correctly seated in the connector on the  
DC/DC card.  
If the keyboard cable connection is correct, check the  
DC/DC card.  
If the tests do not detect a keyboard problem, run the  
keyboard test by doing the following:  
1. Go to the diagnostic menu by selecting Test in the  
Easy-Setup menu.  
2. Press Ctrl+A to enter to the advanced diagnostic  
mode.  
The ThinkPad FRU Connections window appears. (If  
Ctrl+A does not work, triple-click on the icon on the  
right bottom corner of the basic diagnostic window.)  
3. Make sure that the keyboard connection is  
Connected; then press Esc to exit the screen.  
A layout of the keyboard appears on the screen.  
4. Check that when each key is pressed, the key's  
position on the keyboard layout on the screen  
changes to a black square.  
Note: When the Fn key is pressed, a black square  
appears briefly.  
5. Press Ctrl+Pause to end the test.  
If the tests detect a keyboard problem, do the following  
one at a time:  
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Warning: Do not replace a nondefective FRU.  
Reseat the keyboard cables.  
Replace the DC/DC card.  
Replace the system board.  
Auxiliary Input Devices: The following auxiliary  
input devices are supported:  
Numeric keypad  
Mouse (PS/2 compatible)  
External keyboard (with keyboard/mouse cable)  
If any of these devices do not work, reseat the cable  
connector and repeat the failing operation.  
If the problem remains, replace the device, and then the  
system board.  
Memory Checkout  
DIMMs are available for increasing memory capacity.  
DIMM  
Displayed Value  
32192 KB  
No DIMM installed  
16 MB  
48576 KB  
32 MB  
64960 KB  
64 MB  
97728 KB  
Memory errors may cause error messages to appear on  
the screen or may hang the operating system.  
Take the following procedure to isolate memory problems:  
1. Turn off the computer and remove any installed DIMM  
from the slot.  
2. Press and hold the F1 key; then turn on the  
computer. Hold the F1 key down until the  
Easy-Setup menu appears.  
3. Select Test and press Enter.  
4. Select Memory and press Enter to run the memory  
test for the base memory. If an error appears,  
replace the system board.  
5. Turn off the computer and reinstall the DIMM; then  
turn on the computer. Verify the memory size; then  
test the memory. If an error message appears,  
replace the DIMM.  
If a memory problem occur intermittently, perform the loop  
option test. If the test detects an error, it prints an error  
log on a printer connected to the parallel port. See  
“Displaying the Error Log” on page 35 for more  
information.  
Flash Memory Update: System setup programs and  
diagnostic tests are stored in the flash memory. A flash  
memory update is required when:  
A new version of the system program is installed.  
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A new features or options is added to the computer.  
To update the flash memory, do the following:  
1. Obtain an appropriate diskette containing the update.  
2. Insert the System Program Service diskette into drive  
A, and turn on the computer with ac power or a fully  
charged battery.  
3. Select Update system programs from the menu.  
Power Systems Checkout  
To determine whether a power systems problem is due to  
the AC Adapter or the battery, do the following:  
1. Remove the battery.  
2. Connect the AC Adapter and check that power is  
supplied.  
3. Disconnect the AC Adapter and install the charged  
battery; then check that power is supplied by the  
battery.  
If the problem is due to the AC Adapter, go to “AC  
Adapter Checkout”  
If the problem is due to the battery, go to “Battery  
Checkout” on page 14  
If the problem is not due to the AC Adapter or the  
battery, go to “Backup Battery Checkout  
(Nonrechargeable)” on page 15  
AC Adapter Checkout: This checkout is used only  
when the computer fails under ac power.  
If the problem occurs only when the AC Adapter is  
used with a port replicator, replace the replicator.  
If the power-on indicator does not turn on, check the  
power cord of the AC Adapter for conductivity and  
installation.  
1. Unplug the AC Adapter cable from the computer and  
measure the output voltage at the cable plug. See  
the following figure:  
Pin  
1
Voltage (V dc)  
+15.5 to +17.0  
Ground  
2
a. If the voltage persists, go to the next step.  
ThinkPad 380Z 13  
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b. If the voltage is correct, make sure the  
connection between the DC/DC card and the  
system board is not loose.  
c. Replace the DC/DC card.  
d. If the problem is not corrected, replace the  
system board.  
e. If the problem persists, go to “Undetermined  
Problems” on page 32.  
2. Unplug the AC Adapter cable from the ac power  
outlet and wait 5 minutes or longer to allow the  
overvoltage protection circuit to be fully discharged  
and initialized.  
3. Plug the AC Adapter cable into the ac power outlet.  
4. Measure the output voltage of the AC Adapter.  
5. If the voltage is still not correct, replace the AC  
Adapter.  
Note: An audible noise from the AC Adapter does not  
always indicate a defect.  
Battery Checkout: If the error is due to the battery,  
do the following:  
1. Turn off the computer.  
2. Remove the battery and measure the voltage  
between the battery terminals 1 (+) and 4 (−).  
Terminal  
Voltage (V dc) / Signal  
+0 to +13.5  
1
4
Ground (−)  
Note: Signal lines not used in these steps are used  
for communication between the system and  
the battery.  
3. If the voltage is less than +11.0 V dc, the battery has  
been discharged. Recharge the battery.  
If the voltage is still less than +11.0 V dc after  
recharging, replace the battery.  
Note: The voltage of the battery could show 0 V  
because of the overdischarge protection  
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circuit. Try to trickle charge the battery by  
attaching it to the computer with the AC  
adapter.  
4. If the voltage is more than +11.0 V dc, measure the  
resistance between the battery terminals 3 and 4.  
The resistance must be 4 to 30 K ohms.  
If the resistance is not correct, replace the battery.  
If the resistance is correct, replace the DC/DC card.  
Checking Operational Charging  
Note  
Battery charging will not start unless the Fuel-Gauge  
is below 95%. At below 95%, the battery will start  
charging to 100% of its capacity. This limitation  
protects the battery from overcharging and also  
prolongs its life.  
To check the operational charging, install a fully  
discharged battery or a battery that is less than 50%  
charged.  
Turn on the computer while it is connected to the AC  
Adapter. If the battery status indicator does not turn on,  
turn off the computer, remove the battery, and let the  
battery return to room temperature. Reinstall the battery,  
and turn on the computer (still connected to the AC  
Adapter). If the charge indicator still does not turn on,  
replace the battery.  
Backup Battery Checkout  
(Nonrechargeable)  
1. Turn off the computer and unplug the AC Adapter  
from the computer.  
2. Open the Mmoery-slot cover.  
3. Remove the backup battery. (Refer to “1010 DIMM  
Card and Backup Battery” on page 45 to remove the  
battery.)  
4. Measure the voltage of the backup battery connector.  
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Wire  
Red  
Voltage (V dc)  
+2.5 to +3.7  
Ground  
Black  
If the voltage is correct, replace the system board.  
If the voltage is not correct, the backup battery has  
been discharged. Replace the backup battery.  
If the backup battery discharges quickly after  
replacement, replace the system board.  
Status Indicator Checkout  
If an LED problem occurs, do the following:  
1. Turn off the computer.  
2. Turn on the computer.  
3. All the LEDs in the indicator panel should turn on for  
a moment soon after the computer is powered on.  
Make sure they turn on.  
If the problem persists, replace the system board.  
System Board and CPU Card Checkout  
The system board and the CPU card FRUs perform the  
operation on the computer. Processor problems can be  
caused by either FRU. Generally, the CPU card has a  
lower failure rate. If a numeric code indicates the system  
board or the CPU card as failing, do the following  
procedure to isolate the problem:  
1. Run the system board test to verify the symptom.  
This test verifies both the system board and the CPU  
card. If no error is detected, return to “Undetermined  
Problems” on page 32.  
Note: Do not touch the keyboard and the pointing  
device when the system board is being tested.  
This might cause unexpected errors.  
2. If FRU code 10 appears, replace the system board,  
but do not replace the CPU card. Transfer the CPU  
card from the old system board to the new system  
board.  
3. If FRU code 11 appears, reseat the CPU card.  
4. Rerun the test to verify the fix.  
5. If FRU code 11 remains, replace the CPU card.  
If this procedure does not correct the problem, go to  
“Undetermined Problems” on page 32.  
TrackPoint Checkout  
If the TrackPoint does not work, do the following:  
1. Run the ThinkPad Configration program and check if  
the TrackPoint is enabled.  
2. If it is not, select Enable and enable it.  
3. If you still have a problem, continue to the next step.  
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Drifting Pointer  
There may be cases when the pointer drifts for a  
short while on the screen, this is not a hardware  
problem. This movement can occur when a  
slight, steady pressure is applied to the  
TrackPoint. No service action needs to be taken.  
4. Go to the Easy-Setup menu.  
5. Move to an item with the TrackPoint.  
6. Press either the left or the right click button.  
7. Verify that both buttons work correctly.  
8. Move to another item with the TrackPoint.  
9. Press the TrackPoint (Press-to-Select).  
10. Verify that the item is selected.  
11. If the problem still persists, do the following one at a  
time:  
Warning: Do not replace a nondefective FRU.  
Reseat the TrackPoint cable.  
Replace the keyboard.  
Replace the DC/DC card.  
Replace the system board.  
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Optional Device Checkout  
If you suspect an optional device problem, do either of the  
following:  
“Port Replicator Checkout”  
“External Monitor Self-Test”  
Port Replicator Checkout  
Do the following procedures to isolate a port replicator  
problem. A port replicator attaches to the system  
expansion connector on the bottom of the computer.  
1. Turn off the computer.  
2. Remove the failing devices from the replicator.  
3. Unplug the AC adapter from the replicator, if  
attached.  
4. Remove the port replicator from the computer.  
5. Reconnect the failing device directly to the computer.  
(If another device is already connected to the  
computer, remove it first.)  
6. Go to the “Running the Diagnostics” on page 34 and  
run the diagnostics.  
7. If the advanced diagnostic device test does not find  
an error, suspect a problem with the port replicator of  
the system expansion bus.  
8. Turn off the computer and reconnect the port  
replicator.  
9. Turn on the computer and run the following advanced  
diagnostic tests:  
Serial port test with the wrap plug installed on  
the replicator  
Parallel port test with the wrap plug installed on  
the replicator  
10. If diagnostic errors appear, replace the replicator or  
diskette drive attachment unit.  
If the problem remains after the replacement, replace  
the system board.  
11. If power problems appear only when the replicator is  
used, replace the replicator.  
External Monitor Self-Test  
If a monitor problem occurs only when an external monitor  
is connected, do the following:  
Note: Before you replace a monitor:  
Check that the 95XX systems support either  
63XX, 85XX, or 95XX displays.  
Make sure that the external monitor is  
properly connected to the computer.  
If the screen is rolling, replace the external monitor. If that  
does not correct the problem, replace the FRUs in the  
following order:  
1. System board  
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2. Bus adapter (if used)  
If the screen is not rolling, run the monitor self-test as  
follows:  
1. Power-off the computer and monitor.  
2. Disconnect the monitor signal cable.  
3. Power-on the monitor  
4. Set the contrast to its maximum position.  
5. Set the brightness control to the center detent  
position.  
Check the following conditions:  
The screen contrast and brightness control are  
adjustable.  
The screen is either white or light gray, with a black  
margin (test margin).  
The screen is set to CRT or both on the ThinkPad  
Configration program.  
Note: The location of the test margin may vary with  
the type of monitor. It can be either at the top  
and/or bottom, or left and/or right of the  
screen.  
If you do not see a test margin on the screen, replace the  
monitor. If there is a test margin on the screen, replace  
the system board.  
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Power Management Features  
Three power management modes are provided by the  
computer to reduce power consumption and prolong  
battery power.  
Standby Mode  
In standby mode, the following occurs:  
The LCD backlight turns off.  
The hard disk drive motor stops.  
The speaker is muted.  
The computer enters standby mode when the Fn + F3  
keys are pressed.  
The computer exits standby and resumes normal operation  
when any key is pressed.  
Note: Standby mode in Windows 98 is called suspend  
mode in Windows 95.  
Suspend Mode  
The following events occur in addition to what occurs in  
standby mode when the computer enters suspend mode:  
The LCD is powered off.  
The hard disk drive is powered off.  
The CPU stops.  
Note: Suspend mode in Windows 95 is called standby  
mode in Windows 98.  
The following events cause the computer to enter suspend  
mode:  
The Fn + F4 keys are pressed.  
The LCD cover is closed.  
If you add a check mark to the Will not suspend  
even if LCD is closed box in the “Power  
Management Properties” window, the computer will  
not enter suspend mode even if the LCD is closed.  
The LCD only turns off.  
The Suspend button is selected in the Fuel-Gauge  
program.  
The specified time has elapsed from the last  
operation with the keyboard, the TrackPoint, the hard  
disk drive, the parallel connector, or the diskette drive;  
or the AC Adapter is plugged in.  
In Windows 95, the timer is set by the Suspend  
Timer in the “Power Properties” window.  
In Windows 98, the timer is set by the System  
standby timer in the “Power Management Properties”  
window.  
The battery indicator blinks orange indicating that the  
battery power is low.  
If you add a check mark to the Hibernate when  
battery becomes low box in the “Power  
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Management Properties” window, the computer enters  
hibernation mode under this condition.  
Note: In Windows 98, the Alarms setting in the  
“Power Management Properties” window may  
not be synchronous with the actual low battery  
condition which shows a blinking then a  
steady orange and may cause the alarm to  
sound prematurely.  
Note: The computer cannot enter suspend mode when it  
is attached to a docking station.  
The following events cause the computer to resume  
operation from suspend mode:  
The Fn key is pressed.  
The LCD cover is opened.  
The power switch is turned on.  
The resume timer is set.  
In Windows 95, you can set the time in the resume  
on timer in the “Power Management Properties”  
window.  
In Windows 98, the Scheduled Tasks setting has  
priority over the resume on timer in the “Power  
Management Properties” window.  
Note: The computer does not accept any event  
immediately after it enters suspend mode.  
Therefore, wait a few seconds before taking  
any action to reenter operation mode.  
Hibernation Mode  
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.  
The following events cause the computer to enter  
hibernation mode:  
The Fn + F12 keys are pressed.  
The Hibernation button is selected in the Fuel-Gauge  
program.  
The power switch is turned off and hibernation mode  
is set to Hibernate by Power Switch???.  
The timer conditions are satisfied in suspend mode  
(for operating systems other than Windows 98).  
A critically low battery condition occurs and  
hibernation mode is set to Hibernate when battery  
becomes low.  
The computer exits hibernation mode and resumes  
operation when the Power switch is pressed. When power  
is turned on, the hibernation file in the boot record on the  
hard disk drive is read and system status is restored from  
the hard disk drive.  
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Port Replicator Power Overload  
If a power shutdown occurs intermittently when PC Card  
devices are used with a port replicator, suspect an  
over-current problem. Some PC Card devices use much  
power, and if at some point the required power exceeds  
the allowed power, a power shutdown occurs. Isolate this  
problem to a device by removing each device  
simulatneously and then using the computer under the  
same condition as when the power shutdown occurred.  
This will determine which device is causing the overload.  
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Symptom-to-FRU Index  
The symptom-to-FRU Index lists the symptoms and errors  
and the possible causes. The most likely cause is listed  
first.  
Note: Perform the FRU replacement or actions in the  
sequence shown in the “FRU/Action” columns. If a  
FRU replacement did not solve the problem, put  
the original part back in the computer. Do not  
replace a nondefective FRU.  
This index can also help you determine the next possible  
FRUs to be replaced when servicing a computer.  
Numeric error codes show the errors detected in POST or  
system operation. In the following error codes, X can be  
any number.  
If no codes are available, use narrative symptoms.  
If the symptom is not listed, go to “Undetermined  
Problems” on page 32.  
Note: For IBM devices not supported by diagnostic  
codes in the ThinkPad notebook computers,  
see the manual for that device.  
Numeric Error Codes  
Symptom / Error  
FRU / Action in Sequence  
System board  
10X  
101: Interrupt failure.  
102: Timer failure.  
103: Timer interrupt  
failure.  
104: Protected mode  
failure.  
105: Last 8042  
command not  
accepted.  
107: NMI test failure.  
108: Timer bus test  
failure.  
109: Low meg-chip  
select test.  
110  
(Planar parity.)  
1. Go to “Memory  
Checkout” on  
page 12.  
2. DIMM  
3. Detach the expansion  
unit if it is attached to  
the computer.  
4. System board  
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Symptom / Error  
FRU / Action in Sequence  
111  
(I/O parity.)  
1. Go to “Memory  
Checkout” on  
page 12.  
2. Port replicator  
3. System board  
127  
1. CPU card.  
(Cache error)  
2. System board.  
158  
Set the password for hard  
disk drive.  
(Hard disk password is not  
set even though the  
supervisor password is set.)  
159  
Set the correct password  
for hard disk drive.  
(Hard disk password is not  
set the same as the  
supervisor password.)  
161  
1. Go to “Backup  
Battery Checkout  
(Nonrechargeable)”  
on page 15.  
(Dead battery.)  
2. Backup battery  
3. System board  
163  
1. Set time and date.  
(Time and date were not  
set.)  
2. System board  
173  
1. Select OK in the error  
screen; then set the  
time and date.  
(Configuration data was  
lost.)  
2. Backup battery  
3. System board  
174  
1. Check device  
configuration.  
2. Hard disk drive  
3. System board  
(Configuration error:  
Perform“Checking the  
Installed Devices List” on  
page 35 before changing  
any FRUs.)  
175, 177, 178  
System board  
175: EEPROM CRC  
#1 error.  
177: Supervisor  
password check sum  
error.  
178: EEPROM is not  
functional.  
183  
Have the user examine  
the password.  
(Incorrect password entered  
at the supervisor password  
prompt.)  
184  
Reset the power-on  
(Power-on password check  
sum error.)  
password in Easy-Setup.  
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Symptom / Error  
FRU / Action in Sequence  
185  
Reset the start-up  
(The start-up sequence is  
not valid. Probably the  
computer was powered off  
when the start-up sequence  
was being updated.)  
sequence in Easy-Setup.  
186  
System Board  
190  
Go to “Battery Checkout”  
on page 14.  
(A depleted battery pack  
was installed when the  
power was on.)  
191XX  
System board  
(PM initialization error.)  
192  
1. Fan  
(Fan error)  
2. System board  
195  
Check if the configuration  
was changed.  
For example, check if the  
DIMM is added.  
(The configuration read from  
the hibernation data storage  
area does not match the  
actual configuration.)  
196  
1. Run the hard disk  
drive test.  
2. Hard disk drive  
(A read error occurred in the  
hibernation area of the hard  
disk drive.)  
199XX  
(Resume error.)  
System board  
System board  
1XX  
225  
1. Check if a supported  
DIMM is installed.  
2. DIMM Card  
(Unsupported memory  
module)  
3. System board  
2XX  
1. Go to “Memory  
Checkout” on  
page 12.  
2. DIMM  
3. System board  
201: Memory data  
error.  
202: Memory line error  
00–15.  
203: Memory line error  
16–23.  
205: Memory test  
failure on on-board  
memory.  
221: ROM to RAM  
remap error.  
301, 303, 304, 305, 3XX  
(301: Keyboard error.)  
1. Go to “Keyboard or  
Auxiliary Input  
Device Checkout” on  
page 11.  
2. Keyboard  
3. External numeric  
keypad  
4. External keyboard  
5. Keyboard/mouse cable  
6. DC/DC card  
7. System board  
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Symptom / Error  
FRU / Action in Sequence  
601, 6XX  
(601: Diskette drive or  
controller error.)  
1. Go to “Diskette Drive  
Checkout” on  
page 10.  
2. CD-ROM and FDD  
assembly  
3. Diskette  
4. System board  
602  
1. Go to “Diskette Drive  
Checkout” on  
page 10.  
(Diskette read error.)  
2. Diskette  
3. CD-ROM and FDD  
assembly  
604  
1. Go to “Diskette Drive  
Checkout” on  
page 10.  
2. CD-ROM and FDD  
assembly  
(An unacceptable ID was  
read from the diskette  
drive.)  
3. System board  
11XX  
1. Serial device  
1101: Serial_A test failure.  
2. Communication cable  
3. System board  
12XX  
1. System board  
1201: Serial_B test failure.  
(infrared)  
17XX  
1. Hard disk drive  
2. System board  
1701: Hard disk  
controller failure.  
1780, 1790: Hard disk  
0 error.  
1781, 1791: Hard disk  
1 error.  
1801  
(Unsupported Port  
Replicator)  
An unsupported Port  
Replicator is attached to the  
computer.  
24XX  
System board  
(2401: System board video  
error.)  
808X  
1. PC Card slot  
assembly  
2. PCMCIA device  
3. System board  
8081: PCMCIA  
presence test failure.  
(PCMCIA revision  
number also checked.)  
8082: PCMCIA  
registration test failure.  
860X  
1. External mouse  
2. External keyboard  
3. System board  
(Pointing device error when  
the TrackPoint is disabled.)  
8601: System bus  
error–8042 mouse  
interface.  
8602: External mouse  
error.  
8603: System bus  
error or mouse error.  
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Symptom / Error  
FRU / Action in Sequence  
861X  
1. Reseat the keyboard  
cable on the DC/DC  
card  
(Pointing device error when  
the TrackPoint is enabled.)  
2. Keyboard  
8611: System bus  
error–I/F between 8042  
and IPDC.  
8612: TrackPoint error.  
8613: System board or  
TrackPoint error.  
3. External mouse  
4. DC/DC card  
5. System board  
I9990301  
I9990302  
I9990305  
1. Check that the  
operating system is  
installed in the hard  
disk drive. If not,  
install the operating  
system.  
I9990301: Hard disk  
error.  
I9990302: Invalid hard  
disk boot record.  
I9990305: No bootable  
device.  
2. Reseat the boot  
device.  
3. Check the start-up  
sequence for the  
correct boot device.  
4. Check that the  
operating system boots  
correctly.  
I9990303  
System board  
(Bank–2 flash ROM check  
sum error.)  
Other codes not listed  
above.  
Go to “Undetermined  
Problems” on page 32.  
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Beep Symptoms  
Symptom / Error  
FRU / Action in Sequence  
System board  
Continuous beeps.  
One beep and a blank,  
unreadable, or flashing  
LCD.  
1. Reseat the LCD  
connector  
2. LCD assembly  
3. System board  
One beep, and the message  
“Unable to access boot  
source” appears.  
1. Boot device  
2. System board  
One long and two short  
beeps, and a blank or an  
unreadable LCD.  
1. System board  
2. LCD assembly  
One long beep followed by  
four short beeps each time  
the Power switch is  
Connect the AC Adapter  
or install a fully charged  
battery.  
operated.  
(System cannot turn on due  
to low battery voltage.)  
One beep every second.  
(System is shutting down  
due to low battery voltage.)  
Connect the AC Adapter  
or install a fully charged  
battery. (Allow the  
system to completely shut  
down before changing the  
battery.)  
Two short beeps with error  
codes.  
POST error. See  
“Numeric Error Codes” on  
page 23.  
Two short beeps and a  
blank screen.  
System board  
No Beep Symptoms  
Symptom / Error  
FRU / Action in Sequence  
No beep, power-on indicator  
not on, and a blank LCD  
during POST.  
1. Go to “Power  
Systems Checkout”  
on page 13.  
2. DC/DC card  
3. System board  
4. CPU card  
5. Check the power outlet  
No beep, power-on indicator  
on, and a blank LCD during  
POST.  
1. DC/DC card  
2. System board  
3. CPU card  
No beep, power-on indicator  
on, and a blinking cursor  
only during POST.  
1. DC/DC card  
2. CPU card  
3. System board  
No beep during POST but  
the system runs correctly.  
1. Turn the volume up  
and check the  
speaker.  
2. Speaker  
3. System board  
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Function-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The system does not  
suspend or resume when  
the LCD is closed or  
opened.  
1. Go to “Suspend  
Mode” on page 20,  
and check that the  
computer can enter  
suspend mode.  
2. Boot an operating  
system and press  
Fn+F4. If the  
computer enters  
suspend mode,  
suspect that the  
application program is  
not working properly.  
3. LCD assembly  
4. System board  
The battery Fuel-Gauge  
does not go higher than  
90%.  
Go to “Battery Checkout”  
on page 14 and see the  
note.  
The memory count (size)  
appears different from the  
actual size.  
Go to “Memory Checkout”  
on page 12.  
The system configuration  
does not match the installed  
devices.  
Go to “Checking the  
Installed Devices List” on  
page 35.  
The system hangs  
intermittently.  
Go to “Intermittent  
Problems” on page 32.  
Indicator-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The indicator incorrectly  
remains off or on, but the  
system runs correctly.  
1. System board  
2. DC/DC card  
The battery power status  
indicator blinks from green,  
yellow, to orange.  
1. Check that a correct  
battery is installed.  
2. Battery pack  
3. DC/DC card  
4. System board  
The battery indicator does  
not turn on when the battery  
is installed.  
1. DC/DC card  
2. Battery pack  
3. System board  
Infrared-Related Symptoms  
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Symptom / Error  
FRU / Action in Sequence  
Unable to communicate  
using the Infrared (IR) Port.  
1. Make sure the setup  
for the IR is correct.  
Use the ThinkPad  
Configurations utility.  
2. Make sure there are  
no fluorescent lights  
near the computer.  
The computer may  
receive optical noise  
from the fluorescent  
light.  
3. Run the advanced  
diagnostic test. If an  
error occurs and a  
FRU code is displayed,  
replace the parts  
shown by the FRU  
code.  
Keyboard- or TrackPoint-Related  
Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The keyboard (one or more  
keys) does not work.  
1. Reseat the keyboard  
cable on the DC/DC  
card.  
2. Keyboard  
3. System board  
The TrackPoint does not  
work.  
1. Reseat the keyboard  
cable on the DC/DC  
card.  
2. Go to “TrackPoint  
Checkout” on page 16.  
3. Keyboard  
4. System board  
The pointer moves  
automatically or does not  
work correctly.  
See “TrackPoint  
Checkout” on page 16.  
LCD-Related Symptoms  
Important  
The TFT LCD for the notebook computer contains  
over 2,359,296 thin-film transistors (TFTs). A small  
number of missing, discolored, or lighted dots (on all  
the time) is characteristic of TFT LCD technology, but  
excessive pixel problems can cause viewing concerns.  
The LCD should be replaced if the number of missing,  
discolored, or lighted dots in any background is 21 or  
more.  
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Symptom / Error  
FRU / Action in Sequence  
No beep, power-on indicator  
on, and a blank LCD during  
POST.  
1. Reseat the CPU card.  
2. DC/DC card  
3. System board  
1. LCD backlight not  
working.  
1. Reseat the LCD  
connectors.  
2. LCD too dark.  
3. LCD brightness cannot  
be adjusted.  
2. LCD inverter card  
3. LCD assembly  
4. System board  
4. LCD contrast cannot  
be adjusted.  
1. The LCD screen is  
unreadable.  
2. Some pels missing in  
characters.  
3. The screen is  
abnormal.  
4. Wrong color displayed.  
1. See important note  
for “LCD-Related  
Symptoms.”  
2. Reseat all LCD  
connectors.  
3. LCD assembly  
4. System board  
LCD has extra horizontal or  
vertical lines displayed.  
LCD assembly  
Peripheral-Device-Related Symptoms  
Symptom / Error  
FRU / Action in Sequence  
The external monitor does  
not work correctly.  
Connect the external  
monitor to another PC. If  
the monitor works fine,  
replace the system board.  
If not, replace the external  
monitor.  
Printer problems.  
1. Run printer self-test.  
2. Parallel port wrap test.  
3. System board  
4. Printer cable  
(See the printer manual for  
the above tests.)  
Serial or parallel port device  
problems.  
1. Run serial or parallel  
port wrap test. (See  
the device manual for  
the test.)  
2. Device  
3. System board  
4. Device cable  
Power-Related Symptoms  
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Symptom / Error  
FRU / Action in Sequence  
Power shuts down during  
operation.  
1. Go to “Power  
Systems Checkout”  
on page 13.  
2. Battery pack  
3. Remove the battery  
pack and let it cool for  
2 hours.  
4. DC/DC card  
5. System board  
6. Check the power  
outlet.  
The system does not power  
off.  
1. Press the Reset  
switch.  
(See “Reset Switch” on  
page 7.)  
2. DC/DC card  
3. System board  
Other Symptoms  
Symptom / Error  
FRU / Action in Sequence  
Errors occur only when the  
port replicator is used.  
See “Port Replicator  
Checkout” on page 18.  
PC Card slot pin is  
damaged.  
PC Card slots assembly.  
Note: If you cannot find a symptom or an error in this list  
and the problem remains, see “Undetermined  
Problems.”  
Intermittent Problems  
Intermittent system hang problems can be caused by a  
variety of reasons that have nothing to do with a hardware  
defect, such as: cosmic radiation, electrostatic discharge,  
or software errors. FRU replacement should be  
considered only when a recurring problem exists.  
When analyzing the intermittent problem, do the following:  
1. Run the advanced diagnostic test for the system  
board in loop mode at least 10 times.  
2. If no error is detected, do not replace any FRUs.  
3. If any error is detected, replace the FRU shown by  
the FRU code. Rerun the test to verify that no more  
errors exist.  
Undetermined Problems  
You are here because the diagnostic tests did not identify  
which adapter or device failed, installed devices are  
incorrect, a short circuit is suspected, or the system is  
inoperative. Follow these procedures to isolate the failing  
FRU (do not isolate nondefective FRUs).  
Verify that all attached devices are supported by the  
computer.  
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Verify that the power supply being used at the time of the  
failure is operating correctly. (See “Power Systems  
Checkout” on page 13):  
1. Turn off the computer.  
2. Visually check them for damages. If any problems  
are found, replace the FRU.  
3. Remove or disconnect all of the following devices:  
a. Non-IBM devices  
b. Devices attached to the port replicator  
c. Printer, mouse, and other external devices  
d. Battery pack  
e. Hard disk drive  
f. CD-ROM and FDD  
g. DIMM  
h. PC Cards  
4. Turn on the computer.  
5. Determine if the problem is solved.  
6. If the problem is solved, reconnect the removed  
devices one at a time until you find the failing FRU.  
7. If the problem remains, replace the following FRUs  
one at a time. Do not replace a nondefective FRU.  
a. System board  
b. DC/DC card  
c. LCD assembly  
d. CPU card  
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Running the Diagnostics  
Use either the TrackPoint or the cursor move keys to  
interact with the tests.  
The following table lists the special tools used in the  
diagnostics:  
Tool Name  
Part Number  
35G4703  
PC test card  
Tri-Connector wrap plug  
USB parallel test cable  
72X8546  
05K2580  
Use either the TrackPoint or the cursor move keys to  
interact with the tests. The Enter key works in the same  
way as when selecting the OK icon to reply OK.  
1. Press and hold F1; then turn on the computer. Hold  
F1 down until the Easy-Setup menu appears.  
2. Click on Test. The basic diagnostic menu appears.  
3. Click on a device to run the test. The test progress  
window appears; then OK appears under the tested  
device icon when the test ends without any errors.  
4. Start the Advanced Diagnostic test by pressing  
Ctrl+A on the basic diagnostic menu. The ThinkPad  
FRU connections window appears.  
5. Click on Exit or press the Esc key. The keyboard  
test window appears.  
6. When you press a key, a mark appears or disappears  
on the corresponding key position on the screen.  
Repeat this step for any key that needs to be tested.  
You can run the keyboard test if you press the Ctrl+K  
keys at the advanced diagnostic menu.  
7. To exit the keyboard test, click on Exit or press the  
Ctrl+Break keys. The Advanced Diagnostics menu  
appears.  
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8. Click on a device to test, or click on Test All to test  
all devices.  
Click on Looptest to run the tests in a repeated loop.  
The loop option menu appears. Click on a device; a  
mark appears beside the selected device. Repeat  
this step to select multiple devices. Click on OK to  
start the diagnostic loop. If no device is selected, all  
devices tests are looped.  
9. To exit the loop, keep pressing Ctrl+Pause. A beep  
sounds to notify that exit interrupt is sensed by the  
test program. Press Esc to exit from the loop test.  
PC Card (PCMCIA) Slots Test  
The green LED on the PC test card (P/N 35G4703) turns  
on when the PC Card (PCMCIA) slot test is running. If the  
LED does not turn on, check that the card is installed  
correctly by reseating it. If the LED still does not turn on  
after the card is reseated, try using another slot for the  
test. If the LED still does not turn on and the test fails,  
replace the FRU shown by the diagnostic error code.  
Universal Serial Bus (USB) Test  
At the advanced diagnostic test menu, connect the USB  
parallel test cable (P/N 05K2580) to the computer. Click  
on the USB icon to run the test. Follow the instructions on  
the screen. OK appears if the test passes and three lines  
of error codes appear if the test fails. The defective FRU  
must be the DC/DC card or the system board.  
Use cable number 2 for an external USB port on the port  
replicator.  
Displaying the Error Log  
Diagnostic errors are printed on a printer that is attached  
to the parallel port when the error is detected. The error is  
also logged in the system memory.  
Use the following procedures to display the errors:  
1. Enter the advanced diagnostic test.  
2. Press Ctrl+E.  
3. The error log appears.  
4. To exit the window, click on Exit or press Esc key.  
The error log is not saved when the system power is  
turned off.  
Checking the Installed Devices List  
If a device is installed but its icon appears in gray shade  
rather than in dark shade on the basic diagnostics test  
menu, the device is defective. Reseat the device  
connectors. If the symptom remains, replace the device or  
the system board. If needed, adjust the contrast control to  
clearly distinguish the shades of the icon.  
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If a device that is not installed appears in dark shade (for  
example, FDD-2 appears in dark shade when no second  
FDD is installed), do the following:  
1. Replace the first device in the configuration, such as  
an FDD-1.  
2. If the problem persists, replace the system board.  
The Parallel, and Serial icons are always displayed in dark  
shade, because the icons represent subsystems of the  
system board, not the attachment of devices.  
The FDD-1 icon represents the first drive in the system  
configuration for each type of device. The FDD-2 icon  
represents the second drive, attached through a port  
replicator.  
Diagnostic Error Codes  
If an error is detected, the following appears:  
Large X on the left side of the device icon.  
Device ID (three digits)  
Error code (two digits)  
FRU code (four digits)  
For example:  
The device ID and error code indicate the detailed portion  
of the FRU that caused the error. If replacing a FRU does  
not correct the problem, see the device ID or error code  
from the previous failure. If they changed, the new FRU  
might be defective, or it may have been incorrectly  
installed.  
Device ID: If an error is detected by the diagnostic  
tests, a three-digit device ID is displayed, indicating the  
suspected device.  
Icon  
Device  
ID  
Suspected Device  
001  
003  
007  
086  
002  
System board  
Keyboard  
Math coprocessor  
Pointing device  
Memory  
050  
054  
Display  
Display  
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Icon  
Device  
ID  
Suspected Device  
017  
Hard disk drive  
006  
Built-in FDD  
066  
080  
1. External diskette drive  
2. FDD connector of the  
port replicator  
1. PC card slot connector  
2. PC Card  
088  
External PC Card  
009  
011  
215  
217  
103  
Parallel  
Serial  
CD-ROM  
DVD  
IR  
153  
154  
155  
Audio (Crystal)  
USB port  
Audio  
USB port of the port  
replicator  
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FRU Codes: If an error is detected by the diagnostic  
tests, a four-digit FRU code is displayed. The FRU code  
indicates two suspected FRUs. Replace the FRU that is  
indicated by the two leftmost digits first; then replace the  
FRU that is indicated by the two rightmost digits. No  
FRU is assigned to code 00. If only one FRU is  
suspected, the other FRU code digits are filled with zeros.  
See the reference page before replacing the FRU.  
FRU Code  
FRU  
10  
11  
12  
20  
System board  
CPU card  
DC/DC card  
Memory (see “Memory Checkout” on  
page 12)  
30  
32  
33  
34  
35  
38  
39  
40  
45  
50  
Reserved  
External keyboard  
External mouse  
AC Adapter  
Stereo Speaker  
Fan  
Box Speaker  
LCD unit  
External monitor  
1. Reseat the diskette drive (FDD-1).  
2. Diskette drive (FDD-1)  
51  
60  
1. Reseat the diskette drive (FDD-2).  
2. Diskette drive (FDD-2)  
1. Reseat the hard disk drive (HDD).  
2. Hard disk drive (HDD)  
70  
72  
PCMCIA-2 (replicator)  
1. Reseat the PC card slot assembly  
2. PC Card slot assembly  
73  
90  
92  
Port replicator  
CD-ROM drive  
DVD drive  
Note: The device ID and error codes are used to indicate  
the detailed portion of the FRU that is causing the  
error. If replacing a FRU does not correct the  
problem, see the device ID or error code from the  
previous failure. If they changed, the new FRU  
might be defective, or it may have been incorrectly  
installed.  
If the problem persists even after the FRUs are replaced,  
go to “Undetermined Problems” on page 32.  
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Related Service Procedures  
This section provides information on the following:  
“Status Indicators”  
“Password Combinations” on page 40  
“Running a Low-Level Format” on page 40  
“Fn Key Combinations” on page 41  
Status Indicators  
The status indicators show the current computer status in  
different colors (green and orange):  
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Symbol  
Color  
Meaning  
1 Battery  
Green  
Orange  
The battery is fully charged.  
The battery is charging.  
The battery needs charging.  
Blinking  
orange  
2 Hard Disk  
In Use  
Orange  
Green  
Data is read from or written  
to the hard disk, diskette, or  
CD-ROM.  
3 Numeric  
Lock  
The numeric keypad on the  
keyboard is enabled.  
4 Caps  
Lock  
Green  
Green  
Green  
Caps Lock mode is enabled.  
5 Scroll  
Lock  
Arrow keys can be used as  
screen-scroll function keys.  
6 Suspend  
Suspend mode  
Mode  
Blinking  
Green  
Entering suspend mode or  
hibernation mode, or reusing  
normal operation.  
7 Power On  
Green  
Power on  
Password Combinations  
The Model 380Z supports the following passwords:  
Power-on password (POP)  
Hard disk password (HDP)  
Supervisor password (PAP)  
The password combinations are:  
When the POP is the same the HDP, a POP prompt  
and an HDP prompt with the different password  
appears.  
When the POP is not the same as the HDP, all of the  
prompts appear.  
When the PAP is used, the HDP is automatically  
enabled but the HDP prompt does not appear. The  
HDP is then set to the same password as the PAP.  
Running a Low-Level Format  
Attention: Make sure the drive address to be formatted is  
correct. This procedure erases all information on the disk.  
Do the following to format the hard disk:  
1. Turn off the computer.  
2. Press and hold F1; then power on the computer.  
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3. Hold down F1 until the Easy Setup menu appears.  
4. Click on Test. The Basic Diagnostic menu appears.  
5. Press Ctrl + A to enter Advanced Diagnostic mode.  
The ThinkPad FRU Connections menu appears.  
6. Click on Exit. The Keyboard Test menu appears.  
7. Click on Exit.  
8. Press Ctrl + L. The Low-Level Format menu  
appears.  
9. If you have multiple drives, select a drive.  
10. Follow the instructions on the menu.  
Fn Key Combinations  
The following table shows the Fn key and function key  
combinations and their corresponding functions.  
The Fn key works independently from the operating  
system. The operating system obtains the status through  
the system management interface to control the system.  
Fn +  
F1  
Description  
Reserved  
F2  
Fuel-Gauge monitor on or off  
Invokes standby mode  
Invokes suspend mode  
Reserved  
F3  
F4  
F5  
F6  
Reserved  
F7  
Switches between the LCD and an external  
monitor  
F8  
Switches between screen expansion on and  
off (no symbol on the key)  
F9  
Reserved  
Reserved  
F10  
F11  
In Windows 98, you can change only the  
CPU speed.  
For other operating systems, this key  
switches the power management mode  
between;  
High Performance, Automatic, and  
Customized.  
F12  
Invokes hibernation mode  
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FRU Removals and Replacements  
This section contains information about removals and  
replacements.  
Do not damage any part. Only certified and 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 the failing  
FRU is removed, 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.  
CAUTION:  
Before removing any FRU, turn off the computer,  
unplug all power cords from the electrical outlets,  
remove the battery pack, and then disconnect any  
interconnecting cables.  
CAUTION:  
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.  
Attention: 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.  
Attention: The system board is sensitive to, and can be  
damaged by, electrostatic discharge. Establish personal  
grounding by touching a ground point with one hand before  
touching these units.  
You must use an electrostatic discharge (ESD) strap (P/N  
6405959) to establish personal grounding.  
Important Notice  
This machine uses special nylon-coated screws with the  
following characteristics:  
They maintain tight connection.  
They do not easily come loose, even with shock or  
vibration.  
But:  
They need additional force to tighten.  
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They should not be reused.  
Do the following when you service this machine:  
Keep the screw kit (P/N 12J0808) in your tool bag.  
Always use new screws.  
Use a torque screwdriver if you have one.  
FRU Service Procedures  
Review the following procedures before replacing any  
FRUs.  
Replacing the System Board  
Restoring the System Unit Serial Number  
The system unit serial number is written on the label  
attached to the bottom cover of the computer and is also  
stored as vital product data (VPD) in the EEPROM on the  
system board.  
When you replace the system board, you must set the  
system unit serial number on the new system board to its  
original number as follows:  
1. Press and hold F1 and power on the computer.  
2. Hold down F1 until the Easy-Setup menu appears.  
3. Click on Config.  
4. Press Ctrl + N. The System Unit Serial Number  
menu appears.  
5. Follow the instructions on the menu.  
Notes:  
1. Do not power-off the computer during the restoring  
process.  
Updating the Universally Unique IDentifier (UUID)  
The Universally Unique IDentifier (UUID) is a 128-bit  
number uniquely assigned to your computer at production  
and stored in the EEPROM of your system board. The  
algorithm that generates the unique number is designed to  
provide unique IDs until the year 3400 A.D. Consequently,  
no two computers in the world have the same number.  
When you replace the system board, you must set the  
UUID on the new system board as follows:  
1. Press and hold F1 and power on the computer.  
2. Hold down F1 until the Easy-Setup menu appears.  
3. Click on Config.  
4. Press Ctrl + G. The UUID menu appears.  
5. Press F5 to generate a new UUID and press Enter to  
overwrite it to the EEPROM.  
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Removal Reference  
Refer to the following chart on where to go for the removal  
procedure:  
Ref. No.  
FRU  
Page  
No.  
1010  
DIMM Card and Backup  
Battery  
45  
1020  
1030  
1040  
1050  
1060  
Battery Pack  
46  
47  
49  
52  
55  
Hard Disk Drive  
Keyboard Unit  
Keyboard and Speakers  
Diskette Drive Assembly or  
CD-ROM Drive Assembly  
1070  
Diskette Drive or CD-ROM  
Drive  
56  
1080  
1090  
LCD Unit  
60  
63  
Fan Assembly, CPU Card,  
and Thermal Rubber  
1100  
1110  
Upper Shield Case  
66  
67  
Box Speaker and  
Microphone  
1120  
1130  
DC/DC Card  
69  
71  
System Board and PC Card  
Slot  
1140  
2010  
2020  
2030  
2040  
2050  
Battery Pack Latch  
LCD Front Cover  
LCD Inverter Card  
LCD Panel  
73  
74  
76  
77  
79  
81  
LCD Misc. Parts  
LCD Cable  
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1010 DIMM Card and Backup Battery  
CAUTION:  
The backup battery is a lithium battery and can cause  
a fire, an explosion, or severe burns. 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 of an  
incorrect battery can result in ignition or explosion of  
the battery. Replacement batteries can be ordered  
from IBM or IBM Authorized Dealers.  
1
Turn the computer upside down.  
2
2
3
3
4
5
6 : DIMM  
7 : Backup battery  
When installing:  
When installing a new backup battery, place it  
where the old one was on the printed circuit board  
(system board) with double-sided adhesive tape.  
Step  
Size (Quantity)  
Torque  
2
—
3-4 kgcm  
Note: You can loosen the screw in step 2 , but cannot  
remove it.  
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1020 Battery Pack  
1
Turn the computer upside down.  
Pull up the battery pack lock 2 , push it back 3 , and  
then pull up the battery pack 4 .  
3
2
4
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1030 Hard Disk Drive  
Warning  
Do not drop or apply any shock.  
Do not apply pressure to the cover.  
Do not touch the connector.  
The hard disk drive is sensitive. Incorrect handling  
can cause damage and permanent loss of data on the  
hard disk. Before removing the hard disk drive, make  
a backup copy of all the data on the hard disk. Never  
remove the drive while the system is operating, in  
suspend mode, or in hibernation mode.  
Open the LCD cover.  
Battery Pack (1020)  
1
2
3
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Spacer  
Hard Disk  
Driver  
5
6
5
HDD Capacity  
Actual  
With Spacer  
Thickness  
4.0 GB  
4.0 GB  
6.4 GB  
9.5 mm  
Yes  
No  
12.5 mm  
12.5 mm  
No  
Step  
Size (Quantity)  
Torque  
6
M 3 x 2.8 mm, Flathead (4)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
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1040 Keyboard Unit  
Battery Pack (1020)  
Step  
Size (Quantity)  
Torque  
1
2
M 2.5 x 25 mm, nylon-coated (1)  
3-4 kgcm  
3-4 kgcm  
(a)M 2.5 x 8 mm, nylon-coated (3)  
(b)M 2.5 x 6 mm, nylon-coated (1)  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
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Note: In order not to damage the connectors, pull the  
keyboard assembly toward you a little in step 5 ,  
and then go to step 6 .  
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When installing  
See the following figure for the direction of the  
speaker connector:  
When replacing  
Stick a model name label on the keyboard.  
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1050 Keyboard and Speakers  
Battery Pack (1020)  
Keyboard Unit (1040)  
Important: When you release latch B, be careful not to  
apply any force to area A (lenses for status  
indicators).  
1
1
1
A
2
B
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4
3
3
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When installing  
Attach the speakers to their correct side and route the  
speaker cables as shown.  
The right speaker has a red wire.  
The left speaker has a blue wire.  
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1060 Diskette Drive Assembly or  
CD-ROM Drive Assembly  
Battery Pack (1020)  
Hard Disk Drive (1030)  
Keyboard Unit (1040)  
Note: Make sure that the computer does not fall  
backward when you remove the CD-ROM or the  
diskette drive assembly.  
Step  
Size (Quantity)  
Torque  
1
2
4
5
7
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 8 mm, nylon-coated (2)  
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 6 mm, nylon-coated (2)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
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1070 Diskette Drive and CD-ROM Drive  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
Note: When replacing a screw, be sure to tighten the pink  
screws and yellow onestightly.  
Diskette Drive  
1
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Right view  
2
3
1
2
Latch  
Step  
Size (Quantity)  
M 2.6 x 4 mm Yellow (1)  
Torque  
2
4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 57  
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(Rear view)  
4
5
2
1
1
When reinstalling the plate cover, make sure that the blue  
bezel button comes out of the plate cover hole.  
Step  
Size (Quantity)  
Torque  
4
M 2 x 1.7 mm, special-head, Blue  
(2)  
1.5-1.8  
kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
58  
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6
6
6
7
Step  
Size (Quantity)  
Torque  
6
M 2.6 x 2.8 mm pink (3)  
4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
CD-ROM Drive  
4
2
1
(a)  
(a)  
3
1
(b)  
5
4
(b)  
Step  
Size (Quantity)  
Torque  
1
M 2 x 1.7 mm, special-head, blue  
(2)  
1.5-1.8  
kgcm  
4
(a) M 2 x 1.7 mm, special-head,  
blue (2)  
1.5-1.8  
kgcm  
(b) M 2 x 2.4 mm, special-head,  
yellow (2)  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 59  
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1080 LCD Unit  
Battery Pack (1020)  
Keyboard Unit (1040)  
Step  
Size (Quantity)  
Torque  
2
M 2.5 x 6 mm, nylon-coated (5)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
60  
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5
6
3
4
8
7
When reinstalling the LCD Unit, push the cable connector  
straight into the socket.  
Step  
Size (Quantity)  
Torque  
3-4 kgcm  
3 kgcm  
3
5
M 2.5 x 6 mm, nylon-coated (1)  
M 2.5 x 6 mm, special-head (1)  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 61  
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9
8
8
latches  
*
* When removing the LCD, be careful not to damage the  
latches.  
Step  
Size (Quantity)  
Torque  
8
M 2.5 x 6 mm, nylon-coated (3)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
62  
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1090 Fan Assembly, CPU Card, and  
Thermal Rubber  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Attention:  
When removing, be careful not to damage the CPU  
card.  
Step  
Size (Quantity)  
Torque  
1
3
M 2 x 6 mm, nylon-coated (2)  
M 2 x 18 mm, nylon-coated (3)  
2-3 kgcm  
2-3 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 63  
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Step  
Size (Quantity)  
Torque  
6
M 2 x 6 mm, nylon-coated (2)  
2-3 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
64  
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When installing  
Make sure the connectors are fitted firmly by  
pressing the corners of the card.  
A loose connection or a damaged card causes a  
power failure.  
The following figure shows the route of the fan  
assembly cables:  
ThinkPad 380Z 65  
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1100 Upper Shield Case  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Step  
Size (Quantity)  
Torque  
2
3
4
M 2.5 x 8 mm, nylon-coated (2)  
M 2.5 x 6 mm, nylon-coated (3)  
M 2.5 x 6 mm, bighead (1)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
66  
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1110 Box Speaker and Microphone  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Upper Shield Case (1100)  
Step  
Size (Quantity)  
Torque  
1
M 2.5 x 12 mm, nylon-coated (3)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 67  
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When installing  
The following figure shows the route for the  
microphone and speaker cables:  
68  
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1120 DC/DC Card  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Upper Shield Case (1100)  
Make sure that the connectors are not caught in the base  
cover.  
Step  
Size (Quantity)  
Torque  
2
M 2.5 x 22 mm, nylon-coated (2)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 69  
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When installing  
The following figure shows the route for the  
microphone cable:  
70  
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1130 System Board and PC Card Slot  
Notes:  
1. The system unit serial number must be restored when  
the system board is replaced. To restore the system  
unit serial number, select the option “Set system  
identification” on the maintenance diskette. The flash  
ROM on the system board contains the vital product  
data (VPD)—that is, the system unit serial number,  
system board serial number, and other  
computer-unique data.  
2. Do not turn off the computer while restoring the VPD.  
The system unit serial number label is attached to the  
base cover.  
3. Before removing and replacing the system board  
assembly, make sure that the PC Cards are removed  
and the eject buttons are not sticking out. If the PC  
Card eject buttons are sticking out, pull them further  
out slightly and fold them to the right; then push up  
the system board assembly from the bottom.  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Fan Assembly/CPU Card (1090)  
Upper Shield Case (1100)  
Make sure that the connectors are not caught in the base  
cover.  
Connectors  
1
Step  
Size (Quantity)  
Torque  
1
M 2.5 x 6 mm, nylon-coated (2)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 71  
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3
5
4
6
Step  
Size (Quantity)  
Torque  
3
4
5
M 2.5 x 6 mm, nylon-coated (2)  
Hex stud screw (6)  
3-4 kgcm  
3-4 kgcm  
3-4 kgcm  
M 2.5 x 6 mm, nylon-coated (1)  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
Connector  
8
7
Step  
Size (Quantity)  
Torque  
7
M 2 x 16 mm, nylon-coated (2)  
2-3 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
72  
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1140 Battery Pack Latch  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM and Diskette Drive Assembly (1060)  
LCD Unit (1080)  
Fan Assembly/CPU Card (1090)  
Upper Shield Case (1100)  
System Board and PC Card Slot (1130)  
ThinkPad 380Z 73  
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2010 LCD Front Cover  
Battery Pack (1020)  
Keyboard Unit (1040)  
LCD Unit (1080)  
1 : Screw Covers  
2
Screws  
3 : Brightness Control Lever  
4 : Front Cover  
74  
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Step  
Size (Quantity)  
Torque  
2
M 2.5 x 6 mm, flat head (2)  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 75  
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2020 LCD Inverter Card  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
LCD Front Cover (2010)  
Unwrap the aluminum insulator from the inverter card  
connector  
1
before unplugging the connector 3 .  
2
3
1
76  
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2030 LCD Panel  
Battery Pack (1020)  
Keyboard Unit (1040)  
LCD Unit (1080)  
LCD Front Cover (2010)  
LCD Inverter Card (2020)  
Step  
Size (Quantity)  
Torque  
2
3
M 2.5 x 4.8 mm, flat head (1)  
M 2.5 x 6 mm, flat head (3)  
3-4 kgcm  
3-4 kgcm  
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
ThinkPad 380Z 77  
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Note: Lift the LCD panel a little to disconnect the flexible  
cable in step 4 .  
5
4
The position of the flexible cable connector may vary by  
the type of LCD.  
78  
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2040 LCD Misc. Parts  
Battery Pack (1020)  
Keyboard Unit (1040)  
CD-ROM/Diskette Drive Assembly (1060)  
LCD Unit (1080)  
LCD Front Cover (2010)  
LCD Inverter Card (2020)  
LCD Panel (2030)  
Hinges and latches  
1
4
2
3 : Hinges  
5 : Latches  
4
5
1
(a)  
(b)  
(a)  
ThinkPad 380Z 79  
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Step  
Size (Quantity)  
Torque  
1
(a) M 2.5 x 6 mm, flat-head (2)  
(b) M 2.5 x 3 mm, flat-head (1)  
M 2.5 x 6 mm, flat-head (2)  
3-4 kgcm  
3-3.5 kgcm  
3-4 kgcm  
2
Note: Make sure that you use correct screws and tighten all  
of them firmly to the torque shown in the table. Never reuse  
screws that have been removed. Use new ones instead.  
80  
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2050 LCD Cable  
1
Cable  
2
Bush  
Ferrite  
Core  
2
2
ThinkPad 380Z 81  
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3010 ThinkPad Port Replicator with  
Advanced EtherJet Feature  
Step  
Size (Quantity)  
Torque  
3 kgcm  
3 kgcm  
1
3
M2.5 x 5.5 mm, brass flat-head (2)  
M2.5 x 5.5 mm, brass flat-head (3)  
When re-installing: Make sure you use the correct screw,  
and tighten all screws firmly to the torque shown in the table if  
you have a torque screwdriver. Never use a screw that you  
removed. Use a new one. Make sure the screws are  
tightened firmly (see “Screw Tightening Information” on  
page 4 if you do not have a torque screwdriver).  
5
6
5
82  
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Upper Cover  
Assembly  
7
Box Assembly  
When re-installing  
ThinkPad 380Z 83  
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Locations  
Front View  
1
2
3
4
5
6
7
8
9
LCD latches  
Color LCD screen  
Brightness control  
Fan louver  
Infrared port  
Diskette eject button  
Diskette drive  
CD-ROM emergency eject hole  
CD-ROM eject button  
CD-ROM in-use indicator  
CD-ROM drive  
Stereo speakers  
Palm rest  
TrackPoint  
Fn key  
Keyboard  
Speaker (Box speaker:subwoofer)  
Indicator panel  
1
11  
12  
13  
14  
15  
16  
17  
18  
19  
Built-in microphone  
84  
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Bottom View  
1
2
3
4
5
6
7
Memory-slot cover  
Reset switch  
Memory slots and backup battery  
Expansion connectors  
Battery pack lock  
Battery pack  
Serial number label  
ThinkPad 380Z 85  
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Rear View  
1
2
3
4
5
6
7
8
9
Hard disk drive  
Security keyhole  
PC Card eject buttons  
PC Card slots  
Volume control  
Microphone jack/Line-in jack  
Headphone jack  
Power switch  
External-input device connector  
Power jack  
1
11  
12  
13  
14  
15  
16  
17  
Universal serial bus (USB) port  
Serial connector  
Parallel connector  
External-monitor connector  
Connector cover  
External suspend mode indicator  
External battery indicator  
86  
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Parts List  
1
35  
34  
33  
2
3
4
4
32  
5
6
31  
30  
7
8
29  
9
28  
27  
26  
10  
11  
12  
36  
13  
25  
24  
14  
23  
15  
22  
21  
16  
17  
18  
19  
20  
ThinkPad 380Z 87  
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Note on LCD  
See page 77 for the LCD identification.  
Ref. No. FRU Name  
FRU No.  
1
2
LCD Assembly (See page 91)  
LCD Cable Holder  
(included in Base Misc. Parts Kit on page 92.)  
3
4
5
Stereo Speaker Assembly  
ESD Spring  
Support Plate  
05K5498  
05K5499  
(included in Base Misc. Parts Kit on page 89)  
6
7
8
Right Shield Case  
Fan  
Air Duct  
05K5237  
05K5494  
(included in Base Misc. Parts Kit on page 89)  
9
MMO Spacer  
05K5234  
10  
11  
Thermal Rubber  
CPU Card  
05K5235  
(233 MHz)  
(300 MHz)  
Heat Sink  
10L0888  
10L1020  
05K4747  
12  
13  
14  
Connector Bracket (See page 90)  
CD/Diskette Drive Connector Assembly  
(with-CD Model)  
05K2709  
15  
CD-ROM/Diskette Drive Assembly  
(See page 90)  
16  
17  
18  
19  
20  
21  
22  
23  
Connector Cover  
Backup Battery  
05K4744  
02K6498  
SO-DIMM (See page 94)  
Memory Slot Cover  
Battery Pack  
Base Cover Assembly  
Battery Pack Lock Assembly  
Power Switch Knob  
05K4758  
05K6509  
05K4743  
05K4775  
(included in Base Misc. Parts Kit on page 89)  
Hard Disk Drive (See page 90)  
24  
25  
26  
27  
28  
29  
30  
Lower Shield Case  
HDD Lid  
HDD Lid Coin Screw  
DC/DC Card  
05K4745  
05K5496  
05K4754  
10L0930  
05K4862  
PC Card Slot  
Box Speaker  
(includes the Power Switch)  
Microphone Assembly  
Upper Shield Case  
Keyboard Bezel  
Keyboard (See page 93)  
TrackPoint Cap  
02K4328  
02K4329  
05K5495  
05K5497  
31  
32  
33  
34  
35  
36  
84G6536  
10L1157  
System Board  
88  
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Ref. No. FRU Name  
FRU No.  
NS  
Base Misc. Parts Kit includes:  
05K5696  
LCD Cable Holder (Ref.No.2)  
Support Plate (Ref.No.4.)  
Air Duct (Ref.No.8)  
Power Switch Knob (Ref.No.23)  
Logo for LG Korea  
Cable Holding Tape  
NS  
NS  
11J8373  
11J8376  
Note: NS: Not Shown  
ThinkPad 380Z 89  
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Hard Disk Drive and CD-ROM/Diskette  
Drive Assembly  
Ref. No. FRU Name  
FRU No.  
1
Connector Bracket (included in  
Ref.No.4. CD/Diskette Drive Bracket)  
2
3
4
CD/Diskette Drive Connector Assembly 05K2767  
CD-ROM (10X - 24X)  
05K8868  
CD/Diskette Drive Bracket Kit includes: 05K4751  
Connector Bracket (Ref.No.1)  
CD/Diskette Drive Bracket (Ref.No.4)  
Absorber (Ref.No.5)  
5
Absorber (included in  
Ref.No.4 CD/Diskette Drive Bracket)  
6
7
8
Diskette Drive  
Diskette Drive Bezel  
Base Cover Assembly  
HDD Bracket  
11J8338  
73H9932  
05K5697  
05K4752  
9
10  
Hard Disk Drive Assembly  
4.0GB HDD Assembly (9.5 mm)  
with Spacer  
22L0024  
83H7085  
4.0GB HDD Assembly (12.5 mm)  
(See page 48 for the relationship  
between the HDD and the spacer.)  
90  
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LCD Assembly  
1
2
3
4
12  
5
6
6b  
6a  
11  
7
8
9
10  
ThinkPad 380Z 91  
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Ref. No. FRU Name  
FRU No.  
1
Front Cover  
(included in LCD Cover Kit)  
Brightness Control Lever  
(included in LCD Misc. Parts Kit)  
LCD Panel  
LCD Inverter Card  
Right Hinge  
2
3
4
5
05K9377  
05K3472  
(included Hinge Kit)  
LCD Cable Assembly  
aCable Bush-Front  
bCable Bush-Rear  
Hinge Holder  
6
05K2765  
7
8
(included in LCD Cover Kit)  
Insulation Sheet  
(included in LCD Misc. Parts Kit)  
LCD Cover  
9
(included in LCD Cover Kit)  
Right Latch  
(included in LCD Misc. Parts Kit)  
Left Latch  
(included in LCD Misc. Parts Kit)  
Left Hinge  
(included in Hinge Kit)  
LCD Cover Kit includes:  
Front Cover (Ref.No.1)  
Hinge Holder (Ref.No.7)  
LCD Cover (Ref.No.9)  
Logo (Front, Rear)  
Hinge Cap  
10  
11  
12  
NS  
05K5500  
Screw Cap  
NS  
NS  
Hinge Kit includes:  
Right Hinge (Ref.No.6)  
Left Hinge (Ref.No.14)  
Screw Cap  
05K5502  
05K5503  
LCD Misc. Parts Kit includes:  
LCD Cable Holder (Ref.No.2 on page 88)  
Brightness Control Knob (Ref.No.2)  
Insulation Sheet (Ref.No.8)  
Right Latch, Spring, Holder (Ref.No.10)  
Left Latch, Spring, Holder (Ref.No.11)  
Screw Cap  
NS: Not Shown  
92  
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Keyboard  
Nomenclature  
Arabic  
Belgian  
Canadian French  
Czech  
Danish  
Dutch  
French  
German  
Greek  
Hebrew  
Hungarian  
Italian  
Japanese  
Korean  
Latin American Spanish  
Norwegian  
Poland  
Portuguese  
Russian  
Slovakian  
Slovenian  
Spanish  
Swedish or Finnish  
Swiss  
Taiwanese  
Thai  
FRU No.  
02K4351  
02K4341  
02K4344  
02K4352  
02K4343  
02K4337  
02K4335  
02K4334  
02K4353  
02K4354  
02K4355  
02K4336  
02K4333  
02K4345  
02K4348  
02K4342  
02K4357  
02K4356  
02K4346  
02K4358  
02K4359  
02K4339  
02K4338  
02K4340  
02K4347  
02K4349  
02K4350  
02K4332  
02K4331  
Turkish  
U.K. English  
U.S. English  
ThinkPad 380Z 93  
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Miscellaneous and Option Parts List  
Miscellaneous Parts  
FRU Name  
Screw Kit includes:  
FRU No.  
05K5725  
M2.5 x 6, Flat Head (9)  
M2.5 x 3, Flat Head (1)  
M2.5 x 4.8, Flat Head (1)  
Hex Stud (6)  
M2.5 x 6, Bind (Black) (19)  
M2.5 x 8, Bind (Black) (7)  
M2 x 6, Bind (4)  
M2 x 18, Bind (3)  
M2.5 x 22, Bind Nylock (2)  
M2.5 x 12, Bind Nylock (3)  
M2.6 x 4, Bind (Yellow) (1)  
M2.6 x 2.8, Bind (Red)(3)  
M2 x 1.7, Special Pan (Blue) (4)  
M2 x 2.4, Special Pan (Yellow) (2)  
M3 x 3, Flat (4)  
M2.5 x 6, Special (1)  
M2.5 x 6, Big Head (Yellow) (1)  
M2.5 x 25, Bind Nylock (1)  
94  
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Option Parts  
Notes  
1. If you need to replace the AC Adapter, use the  
one for the country you are in even if the  
computer is from a different country.  
2. The warranty for the system unit does not apply  
to all options.  
FRU Name  
FRU No.  
Headset  
85G1529  
02K0520  
02K7007  
02K7011  
11J8974  
02K6497  
66G7871  
95F5723  
6.4GB HDD Assembly  
AC Adapter (56 W, 3-prong)1  
AC Adapter (56 W, 3-prong)1  
AC Adapter (for Japan, 2-prong)2  
AC Adapter (for Japan, 2-prong)2  
Microphone  
PS/2 Miniature Mouse  
ThinkPad Port Replicator  
with Advanced EtherJet Feature  
Box Assembly  
Upper Cover Assembly  
ThinkPad 560 Port Replicator I  
DIMM 16MB (60 ns)  
DIMM 32MB (60 ns)  
DIMM 64MB (60 ns)  
05K4874  
05K4875  
05K4645  
01K1115  
42H2769  
42H2817  
Interface Cable to System for Keyboard 84G2531  
Interface Cable to Keyboard for Keypad 84G2532  
Mini-DIN to Mini-DIN Cable  
84G6474  
1
2
The 3-prong adapters are interchangeable; you can order either  
one.  
The 2-prong adapters are interchangeable; you can order either  
one.  
ThinkPad 380Z 95  
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Numeric Keypad  
FRU Name  
FRU No.  
95F5741  
95F5466  
95F5467  
95F5467  
95F6313  
95F6314  
95F5467  
95F5741  
95F5467  
95F6316  
79F6401  
95F5467  
95F6315  
95F5468  
95F5711  
95F5715  
95F5467  
95F5741  
95F5741  
Belgian  
Canadian French  
Danish  
Dutch  
French  
German  
Greek  
Hebrew  
Icelandic  
Italian  
Japanese  
Norwegian  
Spanish  
Swedish or Finnish  
Swiss French  
Swiss German  
Turkish  
U.K. English  
U.S. English  
Black Keypad  
FRU Name  
French  
German  
Italian  
Norwegian  
Swedish  
FRU No.  
84G6286  
84G6280  
84G6292  
84G6310  
84G6304  
84G6298  
84G2530  
U.K. English  
U.S. English  
Black Keyboard  
FRU Name  
French  
German  
Italian  
Norwegian  
Swedish  
FRU No.  
84G6285  
84G6279  
84G6291  
84G6309  
84G6303  
84G6297  
84G2529  
U.K. English  
U.S. English  
Accessories  
FRU Name  
FRU No.  
Keyboard/Mouse Cable  
54G0444  
96  
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Tools  
FRU Name  
Tri-Connector Wrap Plug  
PC Test Card  
USB Parallel Test Cable  
Screwdriver Kit  
Torque Screwdriver  
5-mm Socket Wrench  
Screwdriver  
FRU No.  
72X8546  
35G4703  
05K2580  
95F3598  
05K4695  
05K4694  
05K4693  
ThinkPad 380Z 97  
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Power Cords  
IBM power cords for a specific country are usually  
available only in that country:  
For 2-pin power cords:  
IBM  
Used in These Countries  
Power  
Cord  
Part  
Number  
13H5264  
Bahamas, Barbados, Bermuda, Bolivia, Canada,  
Cayman Islands, Colombia, Costa Rica,  
Dominican Republic, Ecuador, El Salvador,  
Guatemala, Guyana, Haiti, Honduras, Jamaica,  
Korea (South), Mexico, Netherlands Antilles,  
Nicaragua, Panama, Peru, Philippines, Saudi  
Arabia, Suriname, Taiwan, Thailand, Trinidad  
(West Indies), United States of America,  
Venezuela  
13H5267  
13H5270  
Abu Dhabi, Albania, Antigua, Bahrain, Brunei,  
Dubai, Fiji, India, Ireland, Kenya, Kuwait, Macao,  
Malaysia, Nigeria, Oman, People's Republic of  
China (including Hong Kong), Qatar, Singapore,  
United Kingdom  
Austria, Belgium, Bulgaria, Chile, Czech  
Republic, Denmark, Egypt, Finland, France,  
Germany, Greece, Hungary, Iceland, Indonesia,  
Israel, Italy, Netherlands, Norway, Poland,  
Portugal, Romania, Slovakia, Spain, Sweden,  
Switzerland, Turkey, former Yugoslavia  
13H5273  
13H5276  
Japan  
Argentina, Australia, New Guinea, New Zealand,  
Papua New Guinea, Paraguay, Uruguay  
13H5279  
Bangladesh, Pakistan, South Africa, Sri Lanka  
98  
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For 3-pin slim power cords:  
IBM  
Power  
Cord  
P/N  
Used in These Countries  
76H3514  
Argentina, Australia, New Zealand, Papua New  
Guinea, Paraguay, Uruguay  
76H3516  
Bahamas, Barbados, Bermuda, Bolivia, Canada,  
Cayman Islands, Colombia, Costa Rica,  
Dominican Republic, Ecuador, El Salvador,  
Guatemala, Guyana, Haiti, Honduras, Jamaica,  
Mexico, Netherlands Antilles, Nicaragua,  
Panama, Peru, Philippines, Saudi Arabia,  
Suriname, Taiwan, Trinidad (West Indies),  
United States of America, Venezuela, Thailand  
76H3518  
Austria, Belgium, Bulgaria, Czech Republic,  
Egypt, Finland, France, Germany, Greece,  
Hungary, Iceland, Indonesia, Netherlands,  
Norway, Poland, Portugal, Romania, Slovakia,  
Spain, Sweden, Turkey, former Yugoslavia  
76H3520  
76H3522  
76H3524  
Denmark  
Bangladesh, Pakistan, South Africa, Sri Lanka  
Abu Dhabi, Albania, Antigua, Bahrain, Brunei,  
Dubai, Fiji, India, Ireland, Kenya, Kuwait, Macao,  
Malaysia, Nigeria, Oman, People's Republic of  
China (including Hong Kong), Qatar, Singapore,  
United Kingdom  
76H3526  
76H3528  
76H3530  
76H3532  
76H3535  
Japan  
Liechtenstein, Switzerland  
Chile, Ethiopia, Italy, Libya  
Israel  
Korea  
ThinkPad 380Z 99  
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Notices  
References in this publication to IBM products, programs,  
or services do not imply that IBM intends to make these  
available in all countries in which IBM operates. Any  
reference to an IBM product, program, or service is not  
intended to state or imply that only that IBM product,  
program, or service may be used. Any functionally  
equivalent product, program, or service that does not  
infringe any of the intellectual property rights of IBM may  
be used instead of the IBM product, program, or service.  
The evaluation and verification of operation in conjunction  
with other products, except those expressly designated by  
IBM, are the responsibility of the user.  
IBM may have patents or pending patent applications  
covering subject matter in this document. The furnishing  
of this document does not give you any license to these  
patents. You can send license inquiries, in writing, to the  
IBM Director of Licensing, IBM Corporation, 500 Columbus  
Avenue, Thornwood, NY 10594, U.S.A.  
Trademarks  
The following terms are trademarks of the IBM Corporation  
in the United States or other countries or both:  
IBM  
ThinkPad  
TrackPoint  
Microsoft, Windows, and the Windows 95 flag logo are  
trademarks or registered trademarks of Microsoft  
Corporation.  
Pentium , MMX , ProShare , LANDesk , and  
ActionMedia are trademarks or registered trademarks of  
Intel Corporation in the U.S. and other countries.  
Other company, product, and service names, which may  
be denoted by a double asterisk (**), may be trademarks  
or service marks of others.  
100  
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ThinkPad 380Z 101  
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Part Number: 10L9624  
Printed in U.S.A.  
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