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S10L-9624-00

IBM Mobile Systems

ThinkPad 380Z (2635) Computer Hardware Maintenance Manual

August 1998

Note Before using this information and the product it supports, be sure to read the general information under "Notices" on page 100.

First Edition (August 1998) The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law: INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS" WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express or implied warranties in certain transactions; therefore, this statement may not apply to you. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes to the products or the programs described in this publication at any time. It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative. Copyright International Business Machines Corporation 1998. All rights reserved. Note to U.S. Government Users ­ Documentation related to restricted rights ­ Use, duplication, or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.

ThinkPad 380Z
Read This First . . . . . . . . . . . . . . . Screw Tightening Information . . . . . . . Product Overview . . . . . . . . . . . . . . Checkout Guide . . . . . . . . . . . . . . Audio Checkout . . . . . . . . . . . . . Diskette Drive Checkout . . . . . . . . . Fan Checkout . . . . . . . . . . . . . . Keyboard or Auxiliary Input Device Checkout Memory Checkout . . . . . . . . . . . . Power Systems Checkout . . . . . . . . Status Indicator Checkout . . . . . . . . System Board and CPU Card Checkout . . TrackPoint Checkout . . . . . . . . . . . Optional Device Checkout . . . . . . . . . . Port Replicator Checkout . . . . . . . . . External Monitor Self-Test . . . . . . . . Power Management Features . . . . . . . . Standby Mode . . . . . . . . . . . . . . Suspend Mode . . . . . . . . . . . . . Hibernation Mode . . . . . . . . . . . . Port Replicator Power Overload . . . . . Symptom-to-FRU Index . . . . . . . . . . . Numeric Error Codes . . . . . . . . . . . Beep Symptoms . . . . . . . . . . . . . Function-Related Symptoms . . . . . . . Indicator-Related Symptoms . . . . . . . Infrared-Related Symptoms . . . . . . . . Keyboard- or TrackPoint-Related Symptoms LCD-Related Symptoms . . . . . . . . . Peripheral-Device-Related Symptoms . . . Power-Related Symptoms . . . . . . . . Other Symptoms . . . . . . . . . . . . . Intermittent Problems . . . . . . . . . . Undetermined Problems . . . . . . . . . Running the Diagnostics . . . . . . . . . . . PC Card (PCMCIA) Slots Test . . . . . . Universal Serial Bus (USB) Test . . . . . Displaying the Error Log . . . . . . . . . Checking the Installed Devices List . . . . Diagnostic Error Codes . . . . . . . . . Related Service Procedures . . . . . . . . . Status Indicators . . . . . . . . . . . . . Password Combinations . . . . . . . . . Running a Low-Level Format . . . . . . . Fn Key Combinations . . . . . . . . . . FRU Removals and Replacements . . . . . . Important Notice . . . . . . . . . . . . . FRU Service Procedures . . . . . . . . . Removal Reference . . . . . . . . . . . 1010 DIMM Card and Backup Battery . . 1020 Battery Pack . . . . . . . . . . . Copyright IBM Corp. 1998 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 8 9 10 10 11 11 12 13 16 16 16 18 18 18 20 20 20 21 22 23 23 28 29 29 29 30 30 31 31 32 32 32 34 35 35 35 35 36 39 39 40 40 41 42 42 43 44 45 46

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1030 Hard Disk Drive . . . . . . . . . . . . 1040 Keyboard Unit . . . . . . . . . . . . . 1050 Keyboard and Speakers . . . . . . . . 1060 Diskette Drive Assembly or CD-ROM Drive Assembly . . . . . . . . . . . . . . . . . 1070 Diskette Drive and CD-ROM Drive . . . 1080 LCD Unit . . . . . . . . . . . . . . . 1090 Fan Assembly, CPU Card, and Thermal Rubber . . . . . . . . . . . . . . . . . . 1100 Upper Shield Case . . . . . . . . . . 1110 Box Speaker and Microphone . . . . . 1120 DC/DC Card . . . . . . . . . . . . . 1130 System Board and PC Card Slot . . . . 1140 Battery Pack Latch . . . . . . . . . . 2010 LCD Front Cover . . . . . . . . . . . 2020 LCD Inverter Card . . . . . . . . . . . 2030 LCD Panel . . . . . . . . . . . . . . 2040 LCD Misc. Parts . . . . . . . . . . . . 2050 LCD Cable . . . . . . . . . . . . . . 3010 ThinkPad Port Replicator with Advanced EtherJet Feature . . . . . . . . . . . . . . Locations . . . . . . . . . . . . . . . . . . . . Front View . . . . . . . . . . . . . . . . . Bottom View . . . . . . . . . . . . . . . . . Rear View . . . . . . . . . . . . . . . . . . Parts List . . . . . . . . . . . . . . . . . . . . Hard Disk Drive and CD-ROM/Diskette Drive Assembly . . . . . . . . . . . . . . . . . LCD Assembly . . . . . . . . . . . . . . . . Miscellaneous and Option Parts List . . . . . Notices . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . .

. 47 . 49 . 52 . 55 . 56 . 60 . . . . . . . . . . . . . . . . . 63 66 67 69 71 73 74 76 77 79 81 82 84 84 85 86 87

. 90 . 91 . 94 100 100

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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.

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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. 2. 3. 4. 5. 6. 7. 8. 9. Name and phone number of service personnel Date of service Date when the part failed Date of purchase Failure symptoms, error codes appearing on the display, and beep symptoms Procedure index and page number in which the failing FRU was detected Failing FRU name and the part number Machine type, model number, and serial number 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)

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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 .

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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.

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Product Overview
The following table is an overview of the system features of the IBM ThinkPad 380Z computer.
Feature Processor Description 2635-Hxx Intel Pentium II 233 MHz 2635-Jxx Intel Pentium II 300 MHz Bus Architecture Memory (Standard) Memory (Option) CMOS RAM LCD PCI Bus 32MB (on the system board) Maximum of 96MB. 242 bytes 2635-Hxx/Jxx 13.3-inch, 16M colors, 1024×768 pixel TFT color LCD Diskette Drive (Internal) CD-ROM Drive Hard Disk Drive 1.44 MB (3-mode), 3.5-inch 10×--24× 2635-Hxx/Jxx 4.0GB, 2.5-inch, IDE interface I/O Port Serial Parallel USB External monitor Headphone Microphone Port replicator 16-bit audio Internal speakers Internal microphone Mechanical volume IrDA 1.1 One Type III or two Type I / Type II CardBus support ZV card support 56Watt type

Audio

Infrared Transfer PC Card

AC Adapter

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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 Power failure. (The power indicator does not go on or stay on.) POST does not complete. No beeps or error codes are displayed. The configuration is not the same as the installed devices. POST beeps, but no error codes are displayed. POST detected an error and displayed numeric error codes. Go To "Power Systems Checkout" on page 13. "Symptom-to-FRU Index" on page 23, and then go to "No Beep Symptoms" on page 28. "Checking the Installed Devices List" on page 35. "Symptom-to-FRU Index" on page 23, and then go to "Beep Symptoms" on page 28. "Symptom-to-FRU Index" on page 23, and then go to "Numeric Error Codes" on page 23. "FRU Codes" on page 38.

The diagnostic test detected an error and displayed a FRU code.

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Verified Symptoms Other symptoms (such as LCD monitor problems).

Go To "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: ThinkPad 380Z

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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:
input devices are supported:

The following auxiliary

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 No DIMM installed 16 MB 32 MB 64 MB Displayed Value 32192 KB 48576 KB 64960 KB 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 2

Voltage (V dc) +15.5 to +17.0 Ground

a.

If the voltage persists, go to the next step.

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2.

3. 4. 5.

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. 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. Plug the AC Adapter cable into the ac power outlet. Measure the output voltage of the AC Adapter. 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:
do the following:

If the error is due to the battery,

1. Turn off the computer. 2. Remove the battery and measure the voltage between the battery terminals 1 (+) and 4 (-).

Terminal 1 4

Voltage (V dc) / Signal +0 to +13.5 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 Black

Voltage (V dc) +2.5 to +3.7 Ground

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. 5. 6. 7. 8. 9. 10. 11. Go to the Easy-Setup menu. Move to an item with the TrackPoint. Press either the left or the right click button. Verify that both buttons work correctly. Move to another item with the TrackPoint. Press the TrackPoint (Press-to-Select). Verify that the item is selected. 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. 2. 3. 4. 5. Power-off the computer and monitor. Disconnect the monitor signal cable. Power-on the monitor Set the contrast to its maximum position. 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 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 FRU / Action in Sequence System board

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Symptom / Error 111 (I/O parity.)

FRU / Action in Sequence 1. Go to "Memory Checkout" on page 12. 2. Port replicator 3. System board 1. CPU card. 2. System board. Set the password for hard disk drive.

127 (Cache error) 158 (Hard disk password is not set even though the supervisor password is set.) 159 (Hard disk password is not set the same as the supervisor password.) 161 (Dead battery.)

Set the correct password for hard disk drive.

1. Go to "Backup Battery Checkout (Nonrechargeable)" on page 15. 2. Backup battery 3. System board 1. Set time and date. 2. System board 1. Select OK in the error screen; then set the time and date. 2. Backup battery 3. System board 1. Check device configuration. 2. Hard disk drive 3. System board

163 (Time and date were not set.) 173 (Configuration data was lost.)

174 (Configuration error: Perform"Checking the Installed Devices List" on page 35 before changing any FRUs.) 175, 177, 178 175: EEPROM CRC #1 error. 177: Supervisor password check sum error. 178: EEPROM is not functional. 183 (Incorrect password entered at the supervisor password prompt.) 184 (Power-on password check sum error.)

System board

Have the user examine the password.

Reset the power-on password in Easy-Setup.

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Symptom / Error 185 (The start-up sequence is not valid. Probably the computer was powered off when the start-up sequence was being updated.) 186 190 (A depleted battery pack was installed when the power was on.) 191XX (PM initialization error.) 192 (Fan error) 195 (The configuration read from the hibernation data storage area does not match the actual configuration.) 196 (A read error occurred in the hibernation area of the hard disk drive.) 199XX (Resume error.) 1XX 225 (Unsupported memory module) 2XX 201: Memory data error. 202: Memory line error 00­15. 203: Memory line error 16­23. 205: Memory test failure on on-board memory. 221: ROM to RAM remap error. 301, 303, 304, 305, 3XX (301: Keyboard error.)

FRU / Action in Sequence Reset the start-up sequence in Easy-Setup.

System Board Go to "Battery Checkout" on page 14.

System board 1. Fan 2. System board Check if the configuration was changed. For example, check if the DIMM is added. 1. Run the hard disk drive test. 2. Hard disk drive System board System board 1. Check if a supported DIMM is installed. 2. DIMM Card 3. System board 1. Go to "Memory Checkout" on page 12. 2. DIMM 3. System board

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 601, 6XX (601: Diskette drive or controller error.)

FRU / Action in Sequence 1. Go to "Diskette Drive Checkout" on page 10. 2. CD-ROM and FDD assembly 3. Diskette 4. System board 1. Go to "Diskette Drive Checkout" on page 10. 2. Diskette 3. CD-ROM and FDD assembly 1. Go to "Diskette Drive Checkout" on page 10. 2. CD-ROM and FDD assembly 3. System board 1. Serial device 2. Communication cable 3. System board 1. System board (infrared) 1. Hard disk drive 2. System board

602 (Diskette read error.)

604 (An unacceptable ID was read from the diskette drive.)

11XX 1101: Serial_A test failure. 12XX 1201: Serial_B test failure. 17XX 1701: Hard disk controller failure. 1780, 1790: Hard disk 0 error. 1781, 1791: Hard disk 1 error. 1801 (Unsupported Port Replicator) 24XX (2401: System board video error.) 808X 8081: PCMCIA presence test failure. (PCMCIA revision number also checked.) 8082: PCMCIA registration test failure. 860X (Pointing device error when the TrackPoint is disabled.) 8601: System bus error­8042 mouse interface. 8602: External mouse error. 8603: System bus error or mouse error.

An unsupported Port Replicator is attached to the computer. System board

1. PC Card slot assembly 2. PCMCIA device 3. System board

1. External mouse 2. External keyboard 3. System board

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Symptom / Error 861X (Pointing device error when the TrackPoint is enabled.) 8611: System bus error­I/F between 8042 and IPDC. 8612: TrackPoint error. 8613: System board or TrackPoint error. I9990301 I9990302 I9990305 I9990301: Hard disk error. I9990302: Invalid hard disk boot record. I9990305: No bootable device.

FRU / Action in Sequence 1. Reseat the keyboard cable on the DC/DC card 2. Keyboard 3. External mouse 4. DC/DC card 5. System board

1. Check that the operating system is installed in the hard disk drive. If not, install the operating system. 2. Reseat the boot device. 3. Check the start-up sequence for the correct boot device. 4. Check that the operating system boots correctly. System board

I9990303 (Bank­2 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 Continuous beeps. One beep and a blank, unreadable, or flashing LCD. One beep, and the message "Unable to access boot source" appears. One long and two short beeps, and a blank or an unreadable LCD. One long beep followed by four short beeps each time the Power switch is operated. (System cannot turn on due to low battery voltage.) One beep every second. (System is shutting down due to low battery voltage.) FRU / Action in Sequence System board 1. Reseat the LCD connector 2. LCD assembly 3. System board 1. Boot device 2. System board 1. System board 2. LCD assembly Connect the AC Adapter or install a fully charged battery.

Connect the AC Adapter or install a fully charged battery. (Allow the system to completely shut down before changing the battery.) POST error. See "Numeric Error Codes" on page 23. System board

Two short beeps with error codes. Two short beeps and a blank screen.

No Beep Symptoms
Symptom / Error No beep, power-on indicator not on, and a blank LCD during POST. FRU / Action in Sequence 1. Go to "Power Systems Checkout" on page 13. 2. DC/DC card 3. System board 4. CPU card 5. Check the power outlet 1. DC/DC card 2. System board 3. CPU card 1. DC/DC card 2. CPU card 3. System board 1. Turn the volume up and check the speaker. 2. Speaker 3. System board

No beep, power-on indicator on, and a blank LCD during POST. No beep, power-on indicator on, and a blinking cursor only during POST. No beep during POST but the system runs correctly.

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Function-Related Symptoms
Symptom / Error The system does not suspend or resume when the LCD is closed or opened. FRU / Action in Sequence 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 Go to "Battery Checkout" on page 14 and see the note. Go to "Memory Checkout" on page 12. Go to "Checking the Installed Devices List" on page 35. Go to "Intermittent Problems" on page 32.

The battery Fuel-Gauge does not go higher than 90%. The memory count (size) appears different from the actual size. The system configuration does not match the installed devices. The system hangs intermittently.

Indicator-Related Symptoms
Symptom / Error The indicator incorrectly remains off or on, but the system runs correctly. The battery power status indicator blinks from green, yellow, to orange. FRU / Action in Sequence 1. System board 2. DC/DC card 1. Check that a correct battery is installed. 2. Battery pack 3. DC/DC card 4. System board 1. DC/DC card 2. Battery pack 3. System board

The battery indicator does not turn on when the battery is installed.

Infrared-Related Symptoms

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Symptom / Error Unable to communicate using the Infrared (IR) Port.

FRU / Action in Sequence 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 The keyboard (one or more keys) does not work. FRU / Action in Sequence 1. Reseat the keyboard cable on the DC/DC card. 2. Keyboard 3. System board 1. Reseat the keyboard cable on the DC/DC card. 2. Go to "TrackPoint Checkout" on page 16. 3. Keyboard 4. System board See "TrackPoint Checkout" on page 16.

The TrackPoint does not work.

The pointer moves automatically or does not work correctly.

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 No beep, power-on indicator on, and a blank LCD during POST. 1. LCD backlight not working. 2. LCD too dark. 3. LCD brightness cannot be adjusted. 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. LCD has extra horizontal or vertical lines displayed.

FRU / Action in Sequence 1. Reseat the CPU card. 2. DC/DC card 3. System board 1. Reseat the LCD connectors. 2. LCD inverter card 3. LCD assembly 4. System board

1. See important note for "LCD-Related Symptoms." 2. Reseat all LCD connectors. 3. LCD assembly 4. System board LCD assembly

Peripheral-Device-Related Symptoms
Symptom / Error The external monitor does not work correctly. FRU / Action in Sequence Connect the external monitor to another PC. If the monitor works fine, replace the system board. If not, replace the external monitor. 1. 2. 3. 4. Run printer self-test. Parallel port wrap test. System board Printer cable

Printer problems.

(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 Power shuts down during operation.

FRU / Action in Sequence 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. 1. Press the Reset switch. 2. DC/DC card 3. System board

The system does not power off. (See "Reset Switch" on page 7.)

Other Symptoms
Symptom / Error Errors occur only when the port replicator is used. PC Card slot pin is damaged. FRU / Action in Sequence See "Port Replicator Checkout" on page 18. 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 PC test card Tri-Connector wrap plug USB parallel test cable Part Number 35G4703 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. 2. 3. 4. Enter the advanced diagnostic test. Press Ctrl+E. The error log appears. 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 001 003 007 086 002 Suspected Device System board Keyboard Math coprocessor Pointing device Memory

050 054

Display

Display

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Icon

Device ID 017

Suspected Device Hard disk drive

006

Built-in FDD

066

1. External diskette drive 2. FDD connector of the port replicator 1. PC card slot connector 2. PC Card

080

088

External PC Card

009

Parallel

011

Serial

215

CD-ROM

217

DVD

103

IR

153

Audio (Crystal)

Audio
154 USB port

155

USB port of the port replicator

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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 10 11 12 20 30 32 33 34 35 38 39 40 45 50 51 60 70 72 73 90 92 FRU System board CPU card DC/DC card Memory (see "Memory Checkout" on page 12) 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) 1. Reseat the diskette drive (FDD-2). 2. Diskette drive (FDD-2) 1. Reseat the hard disk drive (HDD). 2. Hard disk drive (HDD) PCMCIA-2 (replicator) 1. Reseat the PC card slot assembly 2. PC Card slot assembly Port replicator CD-ROM drive DVD drive

FRU Codes:

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 1 Battery

Color Green Orange Blinking orange

Meaning The battery is fully charged. The battery is charging. The battery needs charging. Data is read from or written to the hard disk, diskette, or CD-ROM. The numeric keypad on the keyboard is enabled.

2 Hard Disk In Use

Orange

3 Numeric Lock

Green

4 Caps Lock

Green

Caps Lock mode is enabled.

5 Scroll Lock

Green

Arrow keys can be used as screen-scroll function keys.

6 Suspend Mode

Green Blinking Green Green

Suspend mode Entering suspend mode or hibernation mode, or reusing normal operation. Power on

7 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 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 Description Reserved Fuel-Gauge monitor on or off Invokes standby mode Invokes suspend mode Reserved Reserved Switches between the LCD and an external monitor Switches between screen expansion on and off (no symbol on the key) Reserved Reserved 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. Invokes hibernation mode

F12

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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: Press and hold F1 and power on the computer. Hold down F1 until the Easy-Setup menu appears. Click on Config. 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. 2. 3. 4. 5. Press and hold F1 and power on the computer. Hold down F1 until the Easy-Setup menu appears. Click on Config. Press Ctrl + G. The UUID menu appears. Press F5 to generate a new UUID and press Enter to overwrite it to the EEPROM. 1. 2. 3. 4.

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Removal Reference
Refer to the following chart on where to go for the removal procedure: Ref. No. 1010 1020 1030 1040 1050 1060 1070 1080 1090 1100 1110 1120 1130 1140 2010 2020 2030 2040 2050 FRU DIMM Card and Backup Battery Battery Pack Hard Disk Drive Keyboard Unit Keyboard and Speakers Diskette Drive Assembly or CD-ROM Drive Assembly Diskette Drive or CD-ROM Drive LCD Unit Fan Assembly, CPU Card, and Thermal Rubber Upper Shield Case Box Speaker and Microphone DC/DC Card System Board and PC Card Slot Battery Pack Latch LCD Front Cover LCD Inverter Card LCD Panel LCD Misc. Parts LCD Cable Page No. 45 46 47 49 52 55 56 60 63 66 67 69 71 73 74 76 77 79 81

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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 2 Size (Quantity) -- Torque 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 .

2 4

3

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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

6

5

5

HDD Capacity 4.0 GB 4.0 GB 6.4 GB
Step 6

Actual Thickness 9.5 mm 12.5 mm 12.5 mm

With Spacer Yes No No
Torque 3-4 kgcm

Size (Quantity) M 3 x 2.8 mm, Flathead (4)

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 1 2

Size (Quantity) M 2.5 x 25 mm, nylon-coated (1) (a)M 2.5 x 8 mm, nylon-coated (3) (b)M 2.5 x 6 mm, nylon-coated (1)

Torque 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

49

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 .

50

When installing See the following figure for the direction of the speaker connector:

When replacing Stick a model name label on the keyboard.

ThinkPad 380Z

51

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

52

4

3

3

ThinkPad 380Z

53

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.

54

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 1 2 4 5 7

Size (Quantity) 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)

Torque 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.

ThinkPad 380Z

55

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 Driv