IBM ThinkPad 380Z Service Manual

IBM Mobile Systems

ThinkPad 380Z (2635) Computer Hardware Maintenance Manual

August 1998

S10L-9624-00

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.

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Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative.

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 .................. 3

Screw Tightening Information .......... 4

Product Overview . . . . . . . . . . . . . . . . . 8

Checkout Guide . . . . . . . . . . . . . . . . . 9

Audio Checkout . . . . . . . . . . . . . . . . 10

Diskette Drive Checkout ............ 10

Fan Checkout . . . . . . . . . . . . . . . . . 11

Keyboard or Auxiliary Input Device Checkout . . 11

Memory Checkout . . . . . . . . . . . . . . . 12

Power Systems Checkout ........... 13

Status Indicator Checkout ........... 16

System Board and CPU Card Checkout ..... 16

TrackPoint Checkout . . . . . . . . . . . . . . 16

Optional Device Checkout ............. 18

Port Replicator Checkout ............ 18

External Monitor Self-Test ........... 18

Power Management Features ........... 20

Standby Mode . . . . . . . . . . . . . . . . . 20

Suspend Mode . . . . . . . . . . . . . . . . 20

Hibernation Mode . . . . . . . . . . . . . . . 21

Port Replicator Power Overload ........ 22

Symptom-to-FRU Index . . . . . . . . . . . . . . 23

Numeric Error Codes .............. 23

Beep Symptoms . . . . . . . . . . . . . . . . 28

Function-Related Symptoms . . . . . . . . . . 29

Indicator-Related Symptoms . . . . . . . . . . 29

Infrared-Related Symptoms . . . . . . . . . . . 29

Keyboard- or TrackPoint-Related Symptoms . . . 30

LCD-Related Symptoms . . . . . . . . . . . . 30

Peripheral-Device-Related Symptoms . . . . . . 31

Power-Related Symptoms . . . . . . . . . . . 31

Other Symptoms . . . . . . . . . . . . . . . . 32

Intermittent Problems . . . . . . . . . . . . . 32

Undetermined Problems . . . . . . . . . . . . 32

Running the Diagnostics .............. 34

PC Card (PCMCIA) Slots Test ......... 35

Universal Serial Bus (USB) Test ........ 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 . . . . . . . . . . . . 40

Running a Low-Level Format .......... 40

Fn Key Combinations ............. 41

FRU Removals and Replacements ......... 42

Important Notice . . . . . . . . . . . . . . . . 42

FRU Service Procedures ............ 43

Removal Reference . . . . . . . . . . . . . . 44

1010 DIMM Card and Backup Battery ..... 45

1020 Battery Pack . . . . . . . . . . . . . . 46

1030 Hard Disk Drive ............. 47

1040 Keyboard Unit . . . . . . . . . . . . . . 49

1050 Keyboard and Speakers ......... 52

1060 Diskette Drive Assembly or CD-ROM Drive

Assembly . . . . . . . . . . . . . . . . . . 55

1070 Diskette Drive and CD-ROM Drive .... 56

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

1140 Battery Pack Latch ........... 73

2010 LCD Front Cover ............ 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 . . . . . . . . . . . . . . . . . . 90

LCD Assembly ................. 91

Miscellaneous and Option Parts List ...... 94

Notices . . . . . . . . . . . . . . . . . . . . . 100

Trademarks . . . . . . . . . . . . . . . . . 100

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 3

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.

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 5

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 .

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.

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 7

Product Overview

The following table is an overview of the system features of the IBM ThinkPad 380Z computer.

Feature Description

Processor 2635-Hxx

Intel Pentium II 233 MHz

2635-Jxx

Intel Pentium II 300 MHz Bus Architecture PCI Bus Memory

(Standard) Memory (Option) Maximum of 96MB. CMOS RAM 242 bytes LCD 2635-Hxx/Jxx

Diskette Drive (Internal)

CD-ROM Drive 10×—24× Hard Disk Drive 2635-Hxx/Jxx

I/O Port Serial

Audio 16-bit audio

Infrared Transfer IrDA 1.1 PC Card One Type III

AC Adapter 56Watt type

32MB (on the system board)

13.3-inch, 16M colors, 1024×768

pixel TFT color LCD

1.44 MB (3-mode), 3.5-inch

4.0GB, 2.5-inch, IDE interface

Parallel USB External monitor Headphone Microphone Port replicator

Internal speakers Internal microphone Mechanical volume

or two Type I / Type II

CardBus support

ZV card support

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.)

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.

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

“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.

ThinkPad 380Z 9

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.

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 11

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

No DIMM installed 32192 KB 16 MB 48576 KB 32 MB 64960 KB 64 MB 97728 KB

Memory errors may cause error messages to appear on the screen or may hang the operating system.

Take the following procedure to isolate memory problems:

1. Turn off the computer and remove any installed DIMM from the slot.

2. Press and hold the F1 key; then turn on the computer. Hold the F1 key down until the Easy-Setup menu appears.

3. Select Test and press Enter.

4. Select Memory and press Enter to run the memory test for the base memory. If an error appears, replace the system board.

5. Turn off the computer and reinstall the DIMM; then turn on the computer. Verify the memory size; then test the memory. If an error message appears, replace the DIMM.

If a memory problem occur intermittently, perform the loop option test. If the test detects an error, it prints an error log on a printer connected to the parallel port. See “Displaying the Error Log” on page 35 for more information.

Flash Memory Update:

diagnostic tests are stored in the flash memory. A flash memory update is required when:

A new version of the system program is installed.

System setup programs and

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 Voltage (V dc)

1 +15.5 to +17.0 2 Ground

a. If the voltage persists, go to the next step.

ThinkPad 380Z 13

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 1 +0 to +13.5 4 Ground (−)

Note: Signal lines not used in these steps are used

for communication between the system and the battery.

3. If the voltage is less than +11.0 V dc, the battery has been discharged. Recharge the battery.

If the voltage is still less than +11.0 V dc after recharging, replace the battery.

Note: The voltage of the battery could show 0 V

because of the overdischarge protection

circuit. Try to trickle charge the battery by attaching it to the computer with the AC adapter.

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.

ThinkPad 380Z 15

Wire Voltage (V dc)

Red +2.5 to +3.7 Black 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.

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.

ThinkPad 380Z

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

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.

ThinkPad 380Z

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

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.

ThinkPad 380Z

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.

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 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.)

ThinkPad 380Z 23

System board

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

Symptom / Error FRU / Action in Sequence 111

(I/O parity.)

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.)

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.)

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.

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

System board

Have the user examine the password.

Reset the power-on password in Easy-Setup.

Symptom / Error FRU / Action in Sequence 185

(The start-up sequence is not valid. Probably the computer was powered off when the start-up sequence was being updated.)

186 System Board 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 System board 225

(Unsupported memory module)

2XX

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.)

Reset the start-up sequence in Easy-Setup.

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

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

ThinkPad 380Z 25

Symptom / Error FRU / Action in Sequence 601, 6XX

(601: Diskette drive or controller error.)

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

error–8042 mouse interface.

8602: External mouse

error.

8603: System bus

error or mouse error.

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

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

Symptom / Error FRU / Action in Sequence 861X

(Pointing device error when the TrackPoint is enabled.)

8611: System bus

error–I/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.

I9990303

(Bank–2 flash ROM check sum error.)

Other codes not listed above.

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

Go to “Undetermined Problems” on page 32.

ThinkPad 380Z 27

Beep Symptoms

Symptom / Error FRU / Action in Sequence

Continuous beeps. System board 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.)

Two short beeps with error codes.

Two short beeps and a blank screen.

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

No Beep Symptoms

Symptom / Error FRU / Action in Sequence

No beep, power-on indicator not on, and a blank LCD during POST.

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.

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

+ 74 hidden pages