v After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. v Reinstall all covers correctly before returning the machine to the customer. v Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.
WARNING Handling the cord on this product or cords associated with accessories sold with this product will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

Electrical safety

Observe the following rules when working on electrical equipment.
Important Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. v Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. v Do not work alone under hazardous conditions or near equipment that has hazardous voltages. v Disconnect all power before: Performing a mechanical inspection Working near power supplies Removing or installing main units v Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position. v If you need to work on a machine that has exposed electrical circuits, observe the following precautions: Introduction
Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary. Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body. When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages. v Regularly inspect and maintain your electrical hand tools for safe operational condition. v Do not use worn or broken tools and testers. v Never assume that power has been disconnected from a circuit. First, check that it has been powered off. v Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. v Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. v Do not service the following parts with the power on when they are removed from their normal operating places in a machine: Power supply units Pumps Blowers and fans Motor generators and similar units. (This practice ensures correct grounding of the units.) v If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid.

Related service information
This section provides information about the following: v Service Web site v Restoring the pre-installed system v Passwords on page 28 v Power management on page 32

Service Web site

When the latest maintenance diskette and the system program service diskette become available, they will be posted on http://www.lenovo.com/think/spm
Restoring the pre-installed system
When the hard disk drive is replaced because of a failure, no Product Recovery program is on the new hard disk. In this case, you must use the recovery CD for the computer. Order the recovery CD and the hard disk drive at the same time so that you can recover the new hard disk drive with the pre-installed software when they arrive. For information on which CD to order, see Recovery CDs on page 237.
Recovery to Factory Contents by using Product Recovery CDs
To create the service partition and install the factory contents from the recovery CD, do the following:
Note The recovery process might take up to 2 hours. 1. Insert the recovery CD into the CD or DVD drive, then restart the computer. 2. Following message is displayed: Your computer originally included a Product Recovery program. Reinstall the Product Recovery program? (Y/N) [ ]. 3. Press Y key. The service partition is created and loaded with the Product Recovery program files. 4. At next window, press Enter to continue. v The service partition is created. The system automatically reboots during this process. v The recovery process copies some files to the service partition, and PKUNZIPs others. v Follow the prompts. You may be prompted to change CDs. v When the process is complete, the system reboots.
5. If you get a message asking which operating system to install, select the proper operating system and press Enter. 6. A message is displayed: Full Recovery:. Press Enter to select. 7. On each of the next three windows, press the Y key. 8. Follow the prompts to complete the recovery.

Passwords

As many as three passwords may be needed for any ThinkPad computer: the power-on password (POP), the hard-disk password (HDP), and the supervisor password (SVP). If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted. Power-on password: A power-on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted. Hard-disk password: There are two hard-disk passwords (HDPs): v User HDPfor the user v Master HDPfor the system administrator, who can use it to get access to the hard disk even if the user has changed the user HDP Note: There are two modes for the HDP: User only and Master + User. The Master + User mode requires two HDPs; the system administrator enters both in the same operation. The system administrator then provides the user HDP to the system user. Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can be used for access to the hard disk drive. If no master HDP is available, neither Lenovo nor Lenovo authorized servicers provide any services to reset either the user or the master HDP, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee. Supervisor password: A supervisor password (SVP) protects the system

information stored in the BIOS Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system configuration. Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.
How to remove the power-on password
To remove a POP that you have forgotten, do the following: (A) If no SVP has been set: 1. Turn off the computer. 2. Remove the battery pack. For how to remove the battery pack, see 1010 Battery pack for 14.1-in. LCD models on page 71. 3. Remove the backup battery. For how to remove the backup battery, see 1140 Backup battery for 14.1-in. LCD models on page 106. 4. Turn on the computer and wait until the POST ends. After the POST ends, the password prompt does not appear. The POP has been removed. 5. Reinstall the backup battery and the battery pack. (B) If an SVP has been set and is known by the servicer: For T40/T40p, T41/T41p: 1. Turn on the computer and watch the lower left of the screen for a message saying, To interrupt normal startup, press the blue Access IBM button. When that message appears, press the Access IBM button. 2. Enter the SVP. Double-click Start setup utility. 3. Select Security, using the cursor keys to move down the menu. 4. Select Password. 5. Select Power-On Password. 6. At the Enter Current Password field, enter the SVP. 7. When the Enter New Password field opens, leave it blank and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. Press F10; then, in the Setup confirmation window, select Yes. For T42/T42p: 1. Turn on the computer; then, while the To interrupt normal startup, press the blue Access IBM button General descriptions
message is displayed at the lower-left of the screen, press the Access IBM button. The Rescue and Recovery screen opens. For models supporting the Passphrase function, press F1 while POP icon is appearing on the screen; then enter the POP. For the other models, enter the POP. Note: To check whether the ThinkPad computer supports the Passphrase function, enter BIOS Setup Utility and go to Security --> Password. If Using Passphrase item is displayed in the menu, this function is available on the ThinkPad computer. 2. Click Access BIOS. The system Restart Required window is displayed. 3. Click Yes. The computer restarts, and the BIOS Setup Utility screen opens. 4. Select Security, using the cursor directional keys to move down the menu. 5. Select Password. 6. Select Power-On Password. 7. Type the current SVP in the Enter Current Password field. then leave the Enter New Password field blank, and press Enter twice. 8. In the Changes have been saved window, press Enter. 9. Press F10; then, in the Setup confirmation window, select Yes.

Hibernation mode

Note for OS/2 If you are using OS/2 in the default format, HPFS, you cannot create a hibernation file. If you want to use hibernation mode, you will need to reinstall OS/2 with FAT format. In hibernation mode, the following occurs: v The system status, RAM, VRAM, and setup data are stored on the hard disk. v The system is powered off. Note: If the computer enters the hibernation mode while it is docked to the docking station, do not undock it before resuming normal operation. If you do undock it and then try to resume normal operation, you will get an error message, and you will have to restart the system. To cause the computer to enter hibernation mode, do any of the following: v Press the Fn+F12 keys. General descriptions
v If you are using the APM operating system and have set the mode to Power switch mode [Hibernation], turn off the power switch. v If you are using the ACPI operating system and have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. Closing the lid. Pressing the power button. Pressing Fn+F4 keys. Also, the computer goes into hibernation mode automatically in either of the following conditions: v If a hibernation time has been set on the timer, and if the user does not do any operation with the keyboard, the TrackPoint, the hard disk drive, the parallel connector, or the diskette drive within that time. v If the timer conditions are satisfied in suspend mode. v If you are using the APM operating system and have set the mode to Hibernate when battery becomes low, and the battery charge becomes critically low. When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive.

Checkout guide

Use the following procedures as a guide in identifying and correcting problems with the ThinkPad computer. Note: The diagnostic tests are intended to test only ThinkPad products. The use of non-ThinkPad products, prototype cards, or modified options can lead to false indications of errors and invalid system responses. 1. Identify the failing symptoms in as much detail as possible. 2. Verify the symptoms. Try to re-create the failure by running the diagnostic test or by repeating the operation.

Testing the computer

The ThinkPad computer has a test program called PC-Doctor for DOS (hereafter called PC-Doctor.) You can detect errors by running the diagnostics test included in PC-Doctor. This section is an overview of the procedure. For details that depend on model-unique functions, refer to Product overview on page 45. For some possible configurations of the computer, PC-Doctor might not run correctly. To avoid this problem, you need to initialize the computer setup by use of the BIOS Setup Utility before you run PC-Doctor. On the BIOS Setup Utility screen, press F9, Enter, F10, and then Enter. Note: When you initialize the computer configuration, some devices are disabled, such as the serial port. If you test one of these devices, you will need to enable it by using Configuration utility for DOS. The utility is available on the following Web site: http://www.lenovo.com/support PC-Doctor cannot be used to test a device that is in the docking station, even if the computer supports the docking station. To test a USB device, connect it to the USB connector of the computer.

Creating the PC-Doctor diagnostics diskette
To create the PC-Doctor disk from the Access IBM Predesktop Area, do as follows: 1. Enter the Predesktop application by pressing the Access IBM button during POST. 2. When the Access IBM application finishes loading, double-click the Create Diagnostic Diskettes icon.
3. Authenticating the digital signature takes about 15 seconds; then the ThinkPad computer will reboot into PC-DOS. 4. A batch file automatically starts up to prompt you through the process of creating diskettes. You are notified of how many diskettes you will need. a. You are prompted to insert each diskette in sequence. b. Typically, all you need to do is to press the Enter key for the floppy drive; the system then formats and creates the diskette. c. Each diskette is erased and formatted with the PC-Doctor for DOS boot image. 5. Once all the diskettes have been created, the ThinkPad computer will reboot. The user is asked to remove all diskettes from the drive, or to insert the first diskette created if it is desired to run the diagnostics. To run the test, do as follows: Note: In the following procedure, you can select an item not only with the arrow keys, but also with the TrackPoint pointer. Instead of pressing Enter, click the left button. 1. Insert the PC-Doctor disk into the diskette drive; then power on the computer. If the computer cannot be powered on, go to Power system checkout on page 39, and check the power sources. If an error code appears, go to Symptom-to-FRU index on page 58. On the first screen, select the model and press Enter. Follow the instructions on the screen. 2. The main panel of PC-Doctor appears. 3. Select Diagnostics with the arrow keys, and press Enter. A pull-down menu appears. (Its exact form depends on the model.) Note: PC-Doctor menu does not mean the formal support device list. Some unsupported device names may appear in the PC-Doctor menu.

Diagnostics

Interactive Tests

Hardware Info

Utility

F1=Help

Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices Communication Wireless LAN Memory Test - Full Memory Test - Quick
PC-DOCTOR 2.0 Copyright 2002 PC-Doctor, Inc. All Rights Reserved.
Use the cursor keys and ESC to move in menus. Press ENTER to select.
The options on the test menu are as follows: Diagnostics v v v v v v v v v v v v v v Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices Communication Wireless LAN Memory Test Full Memory Test Quick Interactive Tests v v v v v v v v Keyboard Video Internal Speaker Mouse Diskette System Load CD-ROM/DVD Test Intel Wireless Radio
Notes: v In the Keyboard test in Interactive Tests, the Fn key should be held down for at least 2 seconds; otherwise, it cannot be sensed. v Video Adapter test supports only the LCD display on the ThinkPad computer. If you have an external monitor attached to your computer, detach it before running PC-Doctor for DOS. v To test Digital Signature Chip, the chip must be enabled. v When Legacy Floppy Drives is enabled in the BIOS Setup Utility, the Diskette Drives test is activated even if no legacy diskette drive is attached to the ThinkPad computer. 4. Run the applicable function test. 5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. General descriptions

In step 3 , make sure that all the latches marked a are detached, and then remove the bezel. When installing: Make sure that all the latches marked a are firmly attached. Attach harness left ( b ), and then secure the keyboard bezel with the screws.
1180 PC Card slot assembly for 14.1-in. LCD models
For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 71 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1100 Palm rest or Palm rest with fingerprint sensor (for 14.1-in. LCD models) on page 88 v 1160 Speaker assembly on page 110 v 1170 Keyboard bezel for 14.1-in. LCD models on page 112
Torque 0.204 Nm (2.0 kgfcm)
When installing: Make sure that the connector on the underside of the PC card slot 2 is firmly attached, and then secure the slot with the screws.
1190 PC Card slot assembly for 15.0-in. LCD models
For access, remove these FRUs in order: v 1020 Battery pack for 15.0-in. LCD models on page 73 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (for 15.0-in. LCD models) on page 91 v 1160 Speaker assembly on page 110
Screw (quantity) Mmm, bind-head, nylon-coated (1)
1200 LCD assembly for 14.1-in. LCD models
For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 71 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 86 v 1100 Palm rest or Palm rest with fingerprint sensor (for 14.1-in. LCD models) on page 88 v 1120 Mini PCI adapter on page 97 v 1170 Keyboard bezel for 14.1-in. LCD models on page 112
Step 1 Screw (quantity) M2.5 4.8 mm, bind-head, nylon-coated (4) Color Black Torque 0.392 Nm (4 kgfcm)
After removing the screw, remove bracket 3. Then detach the LCD connector 4. When installing: Make sure that the bracket 3 and the connector 4 are firmly attached, and then secure them with the screw. (continued)

Step 5

Screw (quantity) Mmm, flat-head, nylon-coated (1)
Release the antenna cables from the cable guide 6.
When installing: Make sure that the antenna cables are correctly routed and securely in place. (continued)
When installing: Make sure that the security keyhole which is on the left-rear corner of the base cover and the keyhole of the bracket inside are aligning firmly.
1210 LCD assembly for 15.0-in. LCD models
For access, remove these FRUs in order: v 1020 Battery pack for 15.0-in. LCD models on page 73 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 86 v 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (for 15.0-in. LCD models) on page 91 v 1120 Mini PCI adapter on page 97
When installing: Make sure that the connector 3 is firmly attached, and then secure it with the screw. (continued)

Step 4

Color Silver Gold

Torque 0.392 Nm (4 kgfcm) 0.392 Nm (4 kgfcm)
When installing: Attach the system board so that the two small projections on the base cover fit into the holes provided, and then secure the system board with the screw.
Note for sticking a label kit on the base cover New base cover FRU is shipped with several kinds of label kit. When you replace the base cover, you need to stick a homologation label a which has the same part no. with the label on the old base cover (defective FRU) on the new base cover. In some models, you also need to stick one or two FCC labels b. Check the old base cover and if there is one or two FCC labels on it, find the same one from the label kit and stick it on the new base cover. Stick the labels on the new base cover as shown in this figure.
1270 System board, interposer card, and base cover for 15.0-in. LCD models
For access, remove these FRUs, in order: v 1020 Battery pack for 15.0-in. LCD models on page 73 v 1030 Ultrabay Slim device on page 74 v 1040 Hard disk drive on page 75 v 1050 DIMM (optional) on page 77 v 1060 Keyboard on page 79 v 1070 DIMM (standard) on page 83 v 1080 Modem daughter card (MDC/MDC-2) on page 84 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 86 v 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (for 15.0-in. LCD models) on page 91 v 1120 Mini PCI adapter on page 97 v 1130 Fan assembly on page 101 v 1150 Backup battery for 15.0-in. LCD models on page 108 v 1160 Speaker assembly on page 110 v 1190 PC Card slot assembly for 15.0-in. LCD models on page 116 v 1210 LCD assembly for 15.0-in. LCD models on page 123 v 1220 CPU on page 128 v 1240 Ultrabay Slim guide rail assembly for 15.0-in. LCD models on page 131 v 1250 VGA and Ultrabay Slim device eject button cable on page 134
Important notice for handling the system board in ThinkPad T42 series: In ThinkPad T42 series, the security chip a is soldered on the underside of the system board as in this figure.
In ThinkPad T42 series, accelerometer chip for the HDD Active Protection System b is also soldered on the topside of the system board.
Important When handling the system board in ThinkPad T42 series, bear the following in mind. v The system board of the ThinkPad T42 series has an accelerometer, which can be broken by applying several thousands of G-forces. Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench can subject the accelerometer to as much as 6,000 Gs of shock. v Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. v If a system board is dropped, you must test it, using PC-Doctor for DOS, to make sure that the HDD Active Protection still functions (see below). Note: If the test shows that HDD Active Protection is not functioning, be sure to document the drop in any reject report, and replace the system board. v Avoid rough handling of any kind. v At every point in the process, be sure not to drop or stack the system board. v If you put a system board down, be sure to put it only on a padded surface such as an ESD mat or conductive corrugated material. After replacing the system board, run PC-Doctor for DOS to make sure that HDD Active Protection still functions. The procedure is as follows: 1. Place the computer on a horizontal surface. 2. Run Diagnostics --> Other Devices --> HDD Active Protection Test. Attention: Do not apply physical shock to the computer while the test is running.

Screw (quantity) Mmm, small-head, nylon-coated (1)
When installing: Make sure that connectors 2 and 3 are firmly attached.
Cable routing: When replacing the inverter card, route the connector cable as in this figure:
2040 Inverter card for 15.0-in. LCD models
For access, remove these FRUs in order: v 1020 Battery pack for 15.0-in. LCD models on page 73 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 86 v 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (for 15.0-in. LCD models) on page 91 v 1120 Mini PCI adapter on page 97 v 1210 LCD assembly for 15.0-in. LCD models on page 123 v 2020 LCD front bezel for 15.0-in. LCD models on page 155
When installing: Make sure that connectors 2 and 3 are firmly attached. Cable routing: When replacing the inverter card, route the connector cable as in this figure:
2050 Wireless antenna assemblies, LCD panel, LCD cable assembly, hinges, and LCD cover for 14.1-in. LCD models
For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 71 v 1040 Hard disk drive on page 75 v 1060 Keyboard on page 79 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 86 v 1100 Palm rest or Palm rest with fingerprint sensor (for 14.1-in. LCD models) on page 88 v 1120 Mini PCI adapter on page 97 v 1170 Keyboard bezel for 14.1-in. LCD models on page 112 v 1200 LCD assembly for 14.1-in. LCD models on page 118 v 2010 LCD front bezel for 14.1-in. LCD models on page 153 v 2030 Inverter card for 14.1-in. LCD models on page 157 Note: Step 1 to 5 are only for the models with the Bluetooth wireless features. For the other models, skip step 1 to 5.
Peel the tape securing the Bluetooth wireless antenna assembly 3.
Screw (quantity) M2 2.7 mm, small-head, nylon-coated (2)

Color Yellow

In step 6 , remove the latch bar as in this figure.
Lift the latch bar in the direction of the arrow 7 , and then remove the left latch in the direction of the arrow 8.

Step 9

Slide the spiral tube binding the antenna cables ( 10a ), and then release the cables from the cable guide ( 10b ). Lift the LCD panel in the direction of arrow 11 , and detach the wireless LAN antenna 12 and the ThinkLight 13. Then remove the LCD panel in the direction of arrow 14.
Remove the antenna assembly a and hinges b from the LCD assembly.

a 16 17

Step 16
Screw (quantity) Mmm, small-head, nylon-coated (4)
Remove two screws c , and detach the wireless AUX antenna cable ( c ) from the right hinge.
Step 18 Screw (quantity) Mmm, small-head, nylon-coated (2) Color Silver

Remove the hinges 10a , 10b and the wireless LAN antenna cables 11 , 12 (continued)
Cable routing: When you reassemble the LCD unit, do as follows: At the left-top corner of the LCD unit, route the antenna cable as in a. Do not route the cable over the bracket. To do so, the cable might be pinched between the LCD front bezel and the LCD cover, and the cable or the other parts might be damaged or might not be installed properly. At the points shown as V, route the cable as it goes under the projections as in b. At the points shown as , push the cable into the ditch between the LCD cover and the bracket by using a screwdriver as in c.
Then route the cables to along the cable guides of the LCD cover. When you route the cables around the LCD hinges, do as shown in c.
3010 ThinkPad Dock II PCI cover

(Bottom view)

3020 ThinkPad Dock II top cover

(Rear view)

Step 1 Screw (quantity) M2.5 4.8 mm (3) Torque 0.392 Nm (4 kgfcm)
Screw (quantity) M2.5 4.8 mm (4)
Step 3 Screw (quantity) M2.5 4.8 mm (6) Torque 0.392 Nm (4 kgfcm)
Make sure that the system lock key A is set to the Unlock position. Release the front latches in step 4 , and then remove the top cover 5. Then detach the connector cable 6 as in the figure.

Locations

Locations Front view
19 Wireless status indicator Bluetooth wireless status indicator (for some models) System status indicators Power status indicators External monitor connector Ultrabay Slim status indicator Ultrabay Slim latch Ultrabay Slim device eject lever Ultrabay Slim TrackPoint pointing stick Fingerprint sensor (for some models) TrackPoint buttons Touch pad buttons Touch pad UltraNav Access IBM button Volume control buttons Power switch ThinkLight

Rear view

13 Power status indicators Bluetooth wireless status indicator PC Card eject buttons PC Card slots Microphone jack Stereo headphone jack RJ-45 (Ethernet) connector RJ-11 (modem) connector TV-out connector Universal serial bus (USB) connectors Security keyhole Parallel connector AC power connector

Bottom view

9 Hard disk drive Optional DIMM slot Battery pack Battery pack lock (only for 14.1-in LCD models) Docking connector Battery pack latch Infrared port Built-in stereo speakers LCD latch

Parts list

v Each FRU is available for all types or models, unless specific types or models are specified. v A CRU (customer replaceable unit) is identified by a single asterisk (*) or two asterisks (**) in the CRU ID column. An N in the CRU ID column means the part is not a CRU. A single asterisk (*) means the part is a Tier 1 CRU; two asterisks (**) means the part is a Tier 2 CRU. v FRUs marked with OP are available as options.

Overall

Parts list No. FRU a- f See Miscellaneous parts on page 243. LCD unit (see 14.1-in. LCD FRUs on page 220 and 15.0-in. LCD FRUs on page 230.) Keyboard bezel assembly (14.1-in.) Keyboard bezel assembly (15.0-in.) Keyboard bezel assembly with fingerprint sensor (15.0-in.) v 2373-F2x, F3x, F4x, F5x, H8x, H9x, HAx, HBx, JBx, KKx, L1x, L2x, L3x, L4x, L5x, L6x, L7x, L8x, N1x, N2x, N3x, N4x, N5x, Q1x, Q2x, Q3x, Q4x, Q5x, Q6x v 2374-L1x, Q2x v 2378-R2x, R8x, R9x, RSx, RTx, RUx, RVx v 2379-R8x, R9x, RUx, RVx 3 Ultrabay guide rail assembly (14.1-in.) Ultrabay guide rail assembly (15.0-in.) Ultrabay guide rail assembly with fingerprint sensor model (14.1-in.) v 2373-F1x, H1x, H2x, H3x, H4x, H5x, H6x, H7x, J4x, J6x, J7x, J8x, J9x, JAx, K1x, K2x, K3x, K5x, K6x, K7x, K8x, K9x, KAx, KBx, KCx, KDx, KEx, KFx, KGx, KHx, KJx, KLx, KMx, KNx, KPx, KQx, M1x, M2x, M3x, M4x, M5x, M6x, P1x, P2x, P3x, P4x v 2374-J4x, K1x, K2x, K5x v 2378-R1x, R5x, RPx, RQx, RRx v 2379-R1x, R5x Ultrabay guide rail assembly with fingerprint sensor model (15.0-in.) v 2373-F2x, F3x, F4x, F5x, H8x, H9x, HAx, HBx, JBx, KKx, L1x, L2x, L3x, L4x, L5x, L6x, L7x, L8x, N1x, N2x, N3x, N4x, N5x, Q1x, Q2x, Q3x, Q4x, Q5x, Q6x v 2374-L1x, Q2x v 2378-R2x, R8x, R9x, RSx, RTx, RUx, RVx v 2379-R8x, R9x, RUx, RVx 91P9540 13R2921 91P8685 N N N N P/N CRU ID

v 2373-JAG; JBG; K9G; M1x except 93P4264 M1E, M1J, M1U; M6x; N1x except N1U, N1E, N1J; P1x except P1U, P1E, P1J; Q1x escept Q1U, Q1E, Q1J v 2373-M1E, M1J, M4E, M4J, N1E, N1J, N4E, N4J, P1E, P1J, Q1E, Q1J 93P4266
Intel PRO Wireless 2915ABG Mini-PCI Adapter v 2373-KMU, L7U, N2U, P3U, Q4U v 2373-KNx; L7x except L7U; N2x except N2J, N2U; N5x except N5J; P3x except P3J, P3U; P4x; Q4x except Q4J, Q4U; Q5x v 2373-N2J, N5J, P3J, Q4J 93P4235 93P4237 ** (*1) ** (*1)

93P4239

*1: These Mini PCI Adapters are only CRUs in the 14.1-in. LCD models. They are not CRUs in the 15.0-in. LCD models. 15 System board assembly, ATI M6-16, 10/100 Ethernet for T40 v 2373-51x, 54x, 61x, 66x, A6x System board assembly, ATI M6-16, 10/100 Ethernet with security chip for T40 v 2373-6Bx, 6Dx, A7x System board assembly, ATI M7-32, 10/100 Ethernet for T40 v 2373-16x, 24x, 71x, 7Ax, 81x, 8Ax, A5x, C1x v 2378-D1U System board assembly, ATI M7-32, 10/100 Ethernet with security chip for T40 v 2373-12x, 14x, 19x, 1Bx, 22x, 25x, 29x, 2Ax, 2Bx, 2Cx, 44x, 4Bx, 4Cx, 76x, 78x, 7Cx, 86x, 88x, 8Cx, A3x, C4x, C8x v 2374-12x, 14x, 2Ax, 2Cx, 44x, 4Cx, 7Cx, 8Cx v 2378-D2U v 2379-D3U, D4U System board assembly, ATI M7-32, Gigabit Ethernet for T40 v Supported by CTO 91P7701 N

91P7704

91P7707

91P7710

91P7713
Parts list No. FRU 15 System board assembly, ATI M7-32, Gigabit Ethernet with security chip for T40 v 2373-32x, 42x, 47x, 49x, 4Ax, 72x, 75x, 82x, 85x, 8Dx, A2x, A4x, B2x, B5x, BDx, C3x, C7x, CAx v 2374-72x, 75x, 82x v 2375-72x v 2376-72x System board assembly, ATI M9-32, Gigabit Ethernet with security chip for T40 v 2373-33x, 58x, 91x, 92x, 93x, 94x, 96x, 9Cx, A1x, A8x v 2374-9Cx v 2379-D5x, D6x System board assembly, ATI M9 GL-64, Gigabit Ethernet with security chip for T40p v 2373-G1x, G2x, G3x, G4x, G5x, G6x, A9x System board assembly, ATI M7-32, Gigabit Ethernet with security chip for T41 v 2373-1Ex, 1Fx, 1Hx, 1Lx, 2Ex, 2Fx, 2Qx, 3Fx, 3Px, 4Fx, 4Gx, 4Hx, 4Nx, 4Px, 4Qx, 4Sx, 5Hx, 5Qx, 5Rx, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8HU, 8Jx, 8Kx, 8Px, 8Rx, 8Sx, AFx, AHx, AJx, AKx, ALx, BFx, BHx, BJx v 2374-1Fx, 1Hx, 4Hx, 7Fx, 7Jx, 8Rx v 2378-DFx, DGx, DHx, EFx, EJx, EKx, ELx, EMx v 2379-DKx, ERx System board assembly, ATI M9-32, Gigabit Ethernet with security chip for T41 v 2373-3Hx, 9Ex, 9Fx, 9Gx, 9Hx, 9Jx, 9Kx, AMx, AEx v 2374-3Hx v 2378-DEx, EEx, ENx, EPx v 2379-DJx, ESx P/N 91P7716 CRU ID N

91P7719

93P3304

93P3307

93P3310
System board assembly, ATI M10 93P3313 GL-128, Gigabit Ethernet with security chip for T41p v 2373-ANx, GEx, GGx, GHx, GLx, GJx, GKx, GMx v 2374-GGx

Parts list No. FRU 20 P/N CRU ID ** (*2)
Palm rest assembly with touch pad (WW) 91P8398 v 2373-all except xxK in T40/T40p v 2373-all in T41/T41p, T42/T42p v 2374-all except xxK in T40/T40p v 2374-all in T41/T41p, T42/T42p v 2375-all v 2376-all except xxK v 2378-all v 2379-all Palm rest assembly without touch pad (WW) v Supported by CTO Palm rest assembly with touch pad (Korea) for T40/T40p, T42/T42p v 2373-xxK v 2374-xxK v 2375-xxK v 2376-xxK Palm rest assembly with touch pad, fingerprint sensor v 2373-F1x, H1x, H2x, H3x, H4x, H5x, H6x, H7x, J4x, J6x, J7x, J8x, J9x, JAx, K1x, K2x, K3x, K5x, K6x, K7x, K8x, K9x, KAx, KBx, KCx, KDx, KEx, KFx, KGx, KHx, KJx, KLx, KMx, KNx, Mxx, P1x, P2x, P3x, P4x v 2374-J4x, K1x, K2x, K5x v 2378-R1x, R5x, RPx, RQx v 2379-R1x, R5x 91P8399

91P8400

91P8684
*2: Palm rest in the models xxU, xxF with ThinkPad Dual-Band 11a/b Wi-Fi Wireless Mini PCI Adapter is not a Tier2 CRU, since it is secured with tamper proof screws. Keyboard (see Keyboard on page 235.) Track point stick caps 91P9642 ** *
Parts list No. FRU 23 Interposer card for T42/T42p v 2373-3Xx, 3Yx, 4Yx, 6Yx, 7Xx, 7Yx, 8Yx, AUx, AYx, AZx, BUx, CUx, CVx, CWx, CXx, CYx, FYx, HTx, HVx, HWx, HXx, HYx, JXx, KXx, KYx, KZx v 2373-F2x, F3x, F4x, F5x, H8x, H9x, HAx, HBx, JBx, KKx, Lxx, Nxx, Qxx v 2374-3Xx, 6Yx, 7Xx, HTx v 2374-L1x, Q2x v 2378-2Zx, DVx, DWx, DXx, DYx, EWx, EXx, EYx, EZx, FZx v 2378-R2x, R6x, R7x, R8x, R9x, RSx, RTx, RUx, RVx v 2379-DWx, DXx, DYx, EYx, EZx v 2379-R6x, R8x, R9x, RUx, RVx Screw for drive bay for T40/T40p Telephone cable (SAN TAI) Thermal grease P/N 91P7427 CRU ID N

13N5107 91P6839 46L4855

14.1-in. LCD FRUs

14.1-in. XGA TFT

No. FRU a-d 1 See Miscellaneous parts on page 243. LCD cover kit (WW) 13R2569 v 2373-12x except 12K, 14x except 14K, 16x, 19x, 1Bx, 22x, 24x, 25x, 2Ax, 2Bx except 2BK, 2Cx, 42x, 44x, 47x, 49x, 4Ax, 4Bx, 4Cx, 51x, 54x, 61x, 66x, 6Bx except 6BK, 6Dx, 71x, 72x except 72K, 75x except 75K, 76x, 78x, 7Ax, 7Bx, 7Cx except 7CK, 81x, 82x except 82K, 85x, 86x, 88x, 8Ax, 8Cx except 8CK, 8Dx, A2x, A3x, A4x, A5x, A6x, A7x, B2x, B5x, BDx, C1x, C3x, C4x, C7x, C8x, CAx v 2373-1Ex, 1Fx, 1Hx, 1Lx, 2Ex, 2Fx, 2Qx, 4Fx, 4Gx, 4Hx, 4Nx, 4Px, 4Qx, 4Sx, 5Hx, 5Qx, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8Hx, 8Jx, 8Kx, 8Px, 8Rx, 8Sx, AFx, AHx, ALx, BFx, BJx v 2373-1Ux, 1Wx, 1Yx, 1Zx, 2Tx, 2Ux, 2Wx, 2Yx, 4Tx, 4Vx, 4Wx, 4Zx, 5Tx, 5Wx, 6Ux, 6Vx, 6Wx, 6Zx, 7Tx, 7Vx, 7Wx, 7Zx, 8Tx, 8Ux, 8Vx, ATx, AVx, AWx, FTx, FWx, JTx v 2373-F1x, H1x, H2x, H3x, J1x, J2x, J3x, J4x, J5x, J6x, J7x, J8x, J9x, JAx, JCx, JDx, JEx, JFx, K1x, K2x, K3x, K6x, K7x, K8x, K9x, KAx, KBx, KEx, KGx, KHx, KLx, KMx, KNx, KPx v 2374-12x except 12K, 14x except 14K, 2Ax, 2Cx, 44x, 4Cx, 72x except 72K, 75x except 75K, 7Cx except 7CK, 82x except 82K, 8Cx except 8CK v 2374-1Fx, 1Hx, 4Hx, 7Fx, 7Jx, 8Rx v 2374-1Wx, 4Wx, 6Vx, 8Tx v 2374-J4x, K1x, K2x v 2375-72x except 72K v 2376-72x except 72K v 2378-D1x, D2x v 2378-DFx, DGx, DHx, DLx, DMx, EFx, EJx, ELx, EMx v 2378-5Ux, DTx, DUx, ETx, EUx, FUx v 2378-R1x, R3x, R4x, RPx, RQx v 2379-D3x, D4x v 2379-5Vx, DKx, ERx v 2379-R1x N P/N CRU ID

Common parts list

Tool Triconnector wrap plug PC test card Audio wrap cable USB parallel test cable Screwdriver kit Mini PC tool set 1/4" drive spinner handle 1/4" Sq. to 1/4" hex torx adapter TR7-TR-10 tamper resistant torx bits Removal tool antenna RF connector USB floppy disk drive for maintenance diskette ThinkPad Hardware Maintenance Diskette Version 1.73 or later Note: Download the file from the following Web site: http://www.lenovo.com/think/spm P/N 72X8546 35G4703 66G5180 05K2580 95F3598 00P93F2838 00P6967 08K7159 05K9283

Power cords (system)

A ThinkPad power cord for a specific country or region is usually available only in that country or region: For 2-pin power cords:
Region Canada, U.S. Japan Argentina Brazil P/N CRU ID
13H5264 * 74P4331 36L8870 49P2095

For 3-pin power cords:

Region Australia, New Zealand Taiwan, Thailand Italy Denmark U.K., China (Hong Kong S.A.R.) European countries India, South Africa Israel Korea China (P.R.C.) (other than Hong Kong S.A.R.) Switzerland P/N CRU ID
76H3514 * 76H3516 76H3530 76H3520 76H3524 76H3518 76H3522 76H3532 76H3535 02K0539 76H3528
Power cords (ThinkPad Dock II)
A ThinkPad power cord for a specific country or region is usually available only in that country or region: For 3-pin power cords:
Region Argentina Australia, New Zealand Brazil Canada, Thailand, U.S. Denmark European countries India, South Africa Israel Italy Japan Korea China (P.R.C.) (other than Hong Kong S.A.R) Switzerland U.K. P/N 36L8868 75H8988 49P2101 75H8989 75H8992 75H8990 75H8993 75H8999 75H8998 75H8996 76H3536 02K0540 75H8997 75H8994 CRU ID *

Notices

Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the users responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to: Lenovo (United States), Inc. 500 Park Offices Drive, Hwy. 54 Research Triangle Park, NC 27709 U.S.A. Attention: Lenovo Director of Licensing LENOVO GROUP LTD. PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This information 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. Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice. The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or third parties. All information contained in this document was obtained in specific environments

Important BIOS and device driver fixes are customer-installable. The BIOS and device drivers are posted on the IBM support site http://www.ibm.com/pc/support Advise customers to contact the IBM Support Center at 800-426-7378 (800-IBM-Serv) if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call IBM Support Center at 800-565-3344 for assistance or download information.
Strategy for replacing FRUs
Before replacing parts Make sure that all diskette fixes are installed before replacing any FRUs listed in this manual. Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: v If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the original FRU before you continue. v Some computers have both a processor board and a system board. If you are instructed to replace either the processor board or the system board, and replacing one of them does not correct the problem, reinstall that board, and then replace the other one. v If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs, one by one, to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect.
Strategy for replacing a hard disk drive
Always try to run a low-level format before replacing a hard disk drive. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten.
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 causes the first error code may also cause false error codes. If no error code is displayed, see whether the error symptom is listed in the Symptom-to-FRU Index for the computer you are servicing.

v After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective. v Reinstall all covers correctly before returning the machine to the customer. v Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.
WARNING Handling the cord on this product or cords associated with accessories sold with this product will expose you to lead, a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.

Electrical safety

Observe the following rules when working on electrical equipment.
Important Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock. v Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. v Do not work alone under hazardous conditions or near equipment that has hazardous voltages. v Disconnect all power before: Performing a mechanical inspection Working near power supplies Removing or installing main units v Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position. v If you need to work on a machine that has exposed electrical circuits, observe the following precautions: Introduction
Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary. Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back. Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body. When using testers, set the controls correctly and use the approved probe leads and accessories for that tester. Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames. Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages. v Regularly inspect and maintain your electrical hand tools for safe operational condition. v Do not use worn or broken tools and testers. v Never assume that power has been disconnected from a circuit. First, check that it has been powered off. v Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. v Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. v Do not service the following parts with the power on when they are removed from their normal operating places in a machine: Power supply units Pumps Blowers and fans Motor generators and similar units. (This practice ensures correct grounding of the units.) v If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid.

Power management

To reduce power consumption, the computer has three power management modes: screen blank, standby, and hibernation.

Screen blank mode

Screen blank mode has three variants, as follows: 1. If you press Fn+F3, or if the time set on the LCD off timer in IBM BIOS Setup Utility expires, v The LCD backlight turns off. v The hard disk drive motor stops. v The speaker is muted. 2. If you are using the ACPI operating system and you press Fn+F3, v The LCD backlight turns off. v The hard disk drive motor stops. 3. If the time set on the Turn off monitor timer in the operating system expires, v The LCD backlight turns off. To end screen blank mode and resume normal operation, press any key.

Standby mode

When the computer enters standby mode, the following events occur in addition to what occurs in screen blank mode: v The LCD is powered off. v The hard disk drive is powered off. v The CPU stops. To enter standby mode, press Fn+F4. Note: If you are using the ACPI operating system, you can change the action of Fn+F4.s In certain circumstances, the computer goes into standby mode automatically: v If a suspend time has been set on the timer, and the user does not do any operation with the keyboard, the TrackPoint, the hard disk, the parallel connector, or the diskette drive within that time. v If the battery indicator blinks orange, indicating that the battery power is low. (Alternatively, if Hibernate when battery becomes low has been selected in the Power Management Properties window, the computer goes into hibernation mode.) Note for the APM operating system: Even if you do not set the low-battery alarm, the charge indicator notifies you when the battery is low, and then the
computer enters the power-saving mode automatically. This default low-battery behavior is independent of the operating system; so if you have set the low-battery alarm, the computer may not do what you specified. It chooses either your setting or the default setting, whichever is appropriate. If you are using the ACPI operating system, only the low-battery alarm is available. To cause the computer to return from standby mode and resume operation, do one of the following: v Press the Fn key. v Open the LCD cover. v Turn on the power switch. Also, in either of the following events, the computer automatically returns from standby mode and resumes operation: v The ring indicator (RI) is signaled by a serial device or a PC Card device. v The time set on the resume timer elapses. Note: The computer does not accept any input immediately after it enters standby mode. Wait a few seconds before taking any action to reenter operation mode.

Use the cursor keys and ESC to move in menus. Press ENTER to select.
The options on the test menu are as follows: Diagnostics v v v v v v v v v v v v v v Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives Other Devices Communication Wireless LAN Memory Test Full Memory Test Quick Interactive Tests v v v v v v v v Keyboard Video Internal Speaker Mouse Diskette System Load CD-ROM/DVD Test Intel Wireless Radio
Notes: v In the Keyboard test in Interactive Tests, the Fn key should be held down for at least 2 seconds; otherwise, it cannot be sensed. v Video Adapter test supports only the LCD display on the ThinkPad computer. If you have an external monitor attached to your computer, detach it before running PC-Doctor DOS. v To test Digital Signature Chip, the chip must be enabled. v When Legacy Floppy Drives is enabled in the IBM BIOS Setup Utility, the Diskette Drives test is activated even if no legacy diskette drive is attached to the ThinkPad computer. 4. Run the applicable function test. 5. Follow the instructions on the screen. If there is a problem, PC-Doctor shows messages describing it. General descriptions
6. To exit the test, select Quit Exit Diag. To cancel the test, press Esc. Note: After running PC-Doctor, check the time and date on the system and reset them if they are incorrect.
Detecting system information with PC-Doctor
PC-Doctor can detect the following system information:
v v v v v v v v v v v v v v v v v v v v v System Configuration Memory Contents Physical Disk Drives Logical Disk Drives VGA Information IDE Drive Info PCI Information PNPISA Info SMBIOS Info VESA LCD Info
Run External Tests Surface Scan Hard Disk Benchmark System DOS Shell Tech Support Form Battery Rundown View Test Log Print Log Save Log Full Erase Hard Drive Quick Erase Hard Drive

Power system checkout

To 1. 2. 3. 4. verify a symptom, do the following: Turn off the computer. Remove the battery pack. Connect the ac adapter. Check that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the ac adapter and install the charged battery pack. 7. Check that the battery pack supplies power when you turn on the computer. If you suspect a power problem, see the appropriate one of the following power supply checkouts: v Checking the ac adapter v Checking operational charging on page 40 v Checking the battery pack on page 40 v Checking the backup battery on page 41

Checking the ac adapter

You are here because the computer fails only when the ac adapter is used. v If the power problem occurs only when the port replicator is used, replace the port replicator. v If the power-on indicator does not turn on, check the power cord of the ac adapter for correct continuity and installation. v If the computer does not charge during operation, go to Checking operational charging. To check the ac adapter, do the following: 1. Unplug the ac adapter cable from the computer. 2. Measure the output voltage at the plug of the ac adapter cable. See the following figure:
Voltage (V dc) +15.5 to +17.0 Ground

(16 - 10 V)

3. If the voltage is not correct, replace the ac adapter. 4. If the voltage is acceptable, do the following: v Replace the system board. v If the problem persists, go to Product overview on page 45. Note: Noise from the ac adapter does not always indicate a defect. General descriptions
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack. If the charge indicator still does not turn on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life. To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it. To check the battery pack, do the following: 1. Power off the computer. 2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 5 (). See the following figure:

Terminal

Voltage (V dc) + 0 to + 12.6 Ground ()
3. If the voltage is less than +11.0 V dc, the battery pack has been discharged.
Note: Recharging will take at least 3 hours, even if the indicator does not turn on. If the voltage is still less than +11.0 V dc after recharging, replace the battery. 4. If the voltage is more than +11.0 V dc, measure the resistance between battery terminals 4 and 5. The resistance must be 4 to 30 K. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.
Checking the backup battery
Do the following: 1. Power off the computer, and unplug the ac adapter from it. 2. Turn the computer upside down. 3. Remove the battery pack (see 1010 Battery pack for 14.1-in. LCD models on page 72). 4. Remove the backup battery (see Checking the battery pack on page 40). 5. Measure the voltage of the backup battery. See the following figure.

Red (+)

Wire Red Voltage (V dc) +2.5 to +3.2 Ground

Black (-)

v If the voltage is correct, replace the system board. v If the voltage is not correct, replace the backup battery. v If the backup battery discharges quickly after replacement, replace the system board.
ThinkPad T40/T40p, T41/T41p, T42/T42p Series
Product overview. 45 Specifications. 45 Status indicators. 50 FRU tests. 53 Fn key combinations. 54 Symptom-to-FRU index. 58 Numeric error codes. 58 Error messages. 63 Beep symptoms. 64 No-beep symptoms. 64 LCD-related symptoms. 65 Intermittent problems. 66 Undetermined problems. 66 FRU replacement notices. 67 Screw notices. 67 Retaining serial numbers. 68 Restoring the serial number of the system unit 68 Retaining the UUID. 69 Reading or writing the ECA information. 69 Removing and replacing a FRU. Battery pack for 14.1-in. LCD models. Battery pack for 15.0-in. LCD models. Ultrabay Slim device. Hard disk drive. DIMM (optional). Keyboard. DIMM (standard). Modem daughter card (MDC/MDC-2). Bluetooth/Modem daughter card (BMDC/BMDC-2). Palm rest for 14.1-in. LCD models. Keyboard bezel for 15.0-in. LCD models. Mini PCI adapter. Fan assembly. Backup battery for 14.1-in. LCD models Backup battery for 15.0-in. LCD models Speaker assembly. Keyboard bezel for 14.1-in. LCD models PC Card slot assembly for 14.1-in. LCD models. PC Card slot assembly for 15.0-in. LCD models. LCD assembly for 14.1-in. LCD models LCD assembly for 15.0-in. LCD models CPU. Ultrabay Slim guide rail assembly for 14.1-in. LCD models. Ultrabay Slim guide rail assembly for 15.0-in. LCD models. 130 Copyright IBM Corp. 2004

0185 Bad startup sequence settings. Enter BIOS Setup and load Setup defaults.
0187 EAIA data access errorThe access to EEPROM is failed. 0188 Invalid RFID Serialization Information Area. 0189 Invalid RFID configuration information areaThe EEPROM checksum is not correct. 0190 Critical low-battery error 0191 System SecurityInvalid Remote Change requested.

System board.

1. Charge the battery pack. 2. Battery pack. 1. Run IBM BIOS Setup Utility, and then save current setting by pressing F10. 2. System board. System board.
0192 System SecurityIBM Embedded Security hardware tamper detected.
0199 1. Run IBM BIOS Setup System SecurityIBM Security Utility, and then save the password retry count exceeded. current setting by pressing F10. 2. System board. 01C8 Two or more modem devices are found. Remove all but one of them. Press <Esc> to continue. 1. Remove either a Mini-PCI Card or a modem daughter card. Otherwise, press Esc to ignore the warning message. 2. System board.
01C9 1. Remove the Ethernet More than one Ethernet devices device that you installed; are found. Remove one of or press Esc to ignore the them. Press <Esc> to continue. warning message. 2. System board.
Symptom-to-FRU index Symptom or error 0200 Hard disk errorThe hard disk is not working. FRU or action, in sequence 1. Reseat the hard disk drive. 2. Load Setup Defaults in IBM BIOS Setup Utility. 3. Hard disk drive. 4. System board. Run interactive tests of the keyboard and the auxiliary input device. Load Setup Defaults in IBM BIOS Setup Utility.
021x Keyboard error. 0220 Monitor type errorMonitor type does not match the one specified in CMOS. 0230 Shadow RAM errorShadow RAM fails at offset nnnn. 0231 System RAM errorSystem RAM fails at offset nnnn. 0232 Extended RAM error Extended RAM fails at offset nnnn. 0250 System battery errorSystem battery is dead. 0251 System CMOS checksum bad Default configuration used. 0252 Password checksum badThe password is cleared. 0260 System timer error.
1. DIMM. 2. System board. 1. DIMM. 2. System board.
Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. Run IBM BIOS Setup Utility to reset the time and date.

Reading or writing the ECA information
Information on Engineering Change Announcements (ECA) are stored in the EEPROM of the system board. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine. The machine does not need to be disassembled to check for the ECA application. To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the ThinkPad Hardware Maintenance Diskette Version 1.71 or later. 1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.71 or later, and restart the computer. 2. From the main menu, select 6. Set ECA Information. 3. To read ECA information, select 2. Read ECA/rework number from EEPROM and follow the instruction. 4. To read box build date, select 5. Read box build date from EEPROM, and follow the instruction on the screen. After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's application. Use the ThinkPad Hardware Maintenance Diskette Version 1.71 or later to update the EEPROM. Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed be the same as the machine type of the machine that had the ECA applied to it. 1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.71 or later, and restart the computer. 2. From the main menu, select 6. Set ECA Information.
3. To write ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instruction. 4. To write box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen. If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible.
Removing and replacing a FRU
This section presents directions and drawings for use in removing and replacing a FRU. Be sure to observe the following general rules: 1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review FRU replacement notices on page 67. 3. Begin by removing any FRUs that have to be removed before the failing FRU. Any such FRUs are listed at the top of the page. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps for removing the FRU, as given in the drawings by the numbers in square callouts. 5. When turning a screw to replace a FRU, turn it in the direction as given by the arrow in the drawing. 6. When removing the FRU, move it in the direction as given by the arrow in the drawing. 7. To put the new FRU in place, reverse the removal procedure and follow any notes that pertain to replacement. For information about connecting and arranging internal cables, see Locations on page 186. 8. When replacing a FRU, use the correct screw as shown in the procedures.

5. Attach the keyboard. (continued)
6. Secure the keyboard bezel from the underside of the computer with the screw d. This screw cannot be fastened properly without attaching keyboard.

1120 Mini PCI adapter

For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 72 v 1020 Battery pack for 15.0-in. LCD models on page 74 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1100 Palm rest for 14.1-in. LCD models on page 89 v 1110 Keyboard bezel for 15.0-in. LCD models on page 91 Note: When unplugging the antenna jack, do not pull the cable; it might snap. Unplug the jack by pulling the tab with your fingers.
When installing: Plug in the wireless antenna cable as follows: Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter or Intel PRO Wireless 2200BG Mini-PCI Adapter Plug the gray antenna cable with the tab marked MAIN into jack M, and the black antenna cable with the tab marked AUX into jack A.
Cisco Aironet Wireless 802.11b Plug the gray antenna cable with the tab marked MAIN into jack M, and the black antenna cable with the tab marked AUX into jack A.
IBM Dual-Band 11a/b Wi-Fi Wireless Mini PCI Adapter, IBM 11a/b/g Wireless LAN Mini PCI Adapter, or IBM 11b/g Wireless LAN Mini PCI Adapter Plug the gray antenna cable with the tab marked MAIN into jack MAIN, and the black antenna cable with the tab marked AUX into jack AUX.
Insert the notched end of the card into the socket, and then press the card firmly. Pivot the card until it snaps into place. Make sure that it is firmly fixed in the slot and does not move easily.

1130 Fan assembly

For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 72 v 1020 Battery pack for 15.0-in. LCD models on page 74 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1100 Palm rest for 14.1-in. LCD models on page 89 v 1110 Keyboard bezel for 15.0-in. LCD models on page 91
Screw (quantity) Mmm, flat-head, nylon-coated (3)
Important In step 2 , insert the tip of the tool horizontally between the fan assembly and the CPU, as indicated by arrow a. Then slightly push the tool into the gap until the fan assembly comes off. Do not move the tool upward or downward to remove the fan assembly between the gap. To do so, the CPU or the other electrical component may be damaged.
Important In step 2a and 2b , be careful not to damage the copper plate of the fan assembly. Step 2a is for the fan assembly, long and for the fan assembly, long M10. Step 2b is for the fan assembly, short. Distortion of the fan assembly may cause a thermal problem.

Step 1 Screw (quantity) M2.5 4.8 mm, bind-head, nylon-coated (4) Color Black Torque 0.392 Nm (4 kgfcm)
After removing the screw, remove bracket 3. Then detach the LCD connector 4. When installing: Make sure that the bracket 3 and the connector 4 are firmly attached, and then secure them with the screw. (continued)

Step 5

Screw (quantity) Mmm, flat-head, nylon-coated (1)
Release the antenna cables from the cable guide 6.
When installing: Make sure that the antenna cables are correctly routed and securely in place. (continued)
When installing: Make sure that the security keyhole which is on the left-rear corner of the base cover and the keyhole of the bracket inside are aligning firmly.
1210 LCD assembly for 15.0-in. LCD models
For access, remove these FRUs in order: v 1020 Battery pack for 15.0-in. LCD models on page 74 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 87 v 1110 Keyboard bezel for 15.0-in. LCD models on page 91 v 1120 Mini PCI adapter on page 97
When installing: Make sure that the connector 3 is firmly attached, and then secure it with the screw. (continued)

Step 4

Release the antenna cables from the cable guide 5.

1220 CPU

For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 72 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1100 Palm rest for 14.1-in. LCD models on page 89 v 1110 Keyboard bezel for 15.0-in. LCD models on page 91 v 1170 Keyboard bezel for 14.1-in. LCD models on page 111 v 1200 LCD assembly for 14.1-in. LCD models on page 117 v 1130 Fan assembly on page 100 Rotate the head of the screw in the direction shown by arrow 1 to release the lock; then remove the CPU 2.
When installing: Place the CPU on the CPU socket a , and then rotate the head of the screw in the direction shown by arrow b to secure the CPU.
1230 Ultrabay Slim guide rail assembly for 14.1-in. LCD models
For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 72 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1100 Palm rest for 14.1-in. LCD models on page 89 v 1160 Speaker assembly on page 109 v 1170 Keyboard bezel for 14.1-in. LCD models on page 111 v 1180 PC Card slot assembly for 14.1-in. LCD models on page 113 v 1200 LCD assembly for 14.1-in. LCD models on page 117

Remove the support structure a and the EMI bracket b.
Screw (quantity) Mmm, flat-head, nylon-coated (1) M2.5 4.8 mm, bind-head, nylon-coated (1)
Remove two connectors 6 and then remove the cable guide c in the direction of arrow 7. When installing: Make sure that the connectors 6 are firmly attached to the system board. (continued)

Step 8

Screw (quantity) Mmm, bind-head, nylon-coated (3)
In step 9 , remove the I/O plate bracket ( d ) and the system board ( e ) together. When installing: Attach the system board so that the two small projections on the base cover fit into the holes provided, and then secure the system board with the screw. (continued)

Step 10 11

Screw (quantity) Hex stud (2) M2.mm, flat-head, nylon-coated (1)
Remove the system board g from the I/O plate bracket f in the direction of arrow 12. Then remove the interposer card 13. When installing: Make sure that the connectors of the interposer card are firmly attached to the system board.
2010 LCD front bezel for 14.1-in. LCD models
For access, remove these FRUs in order: v 1010 Battery pack for 14.1-in. LCD models on page 72 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 87 v 1100 Palm rest for 14.1-in. LCD models on page 89 v 1120 Mini PCI adapter on page 97 v 1170 Keyboard bezel for 14.1-in. LCD models on page 111 v 1200 LCD assembly for 14.1-in. LCD models on page 117
Screw (quantity) Mmm, pan-head, nylon-coated (2) M2.5 4.8 mm, bind-head, nylon-coated (3) Mmm, pan-head, nylon-coated (6)
Torque 0.245 Nm (2.5 kgfcm) 0.392 Nm (4 kgfcm) 0.245 Nm (2.5 kgfcm)
Note for LG-IBM models (Korea) in T41/T41p series: New LCD front bezel FRU is shipped with clear plate FRU. When you replace the LCD front bezel, you need to stick the LG-IBM logo plate which is contained in the clear plate FRU as shown in this figure.
2020 LCD front bezel for 15.0-in. LCD models
For access, remove these FRUs in order: v 1020 Battery pack for 15.0-in. LCD models on page 74 v 1040 Hard disk drive on page 76 v 1060 Keyboard on page 80 v 1090 Bluetooth/Modem daughter card (BMDC/BMDC-2) on page 87 v 1110 Keyboard bezel for 15.0-in. LCD models on page 91 v 1120 Mini PCI adapter on page 97 v 1210 LCD assembly for 15.0-in. LCD models on page 122
Screw (quantity) Mmm, bind-head, nylon-coated (4)
Note for LG-IBM models (Korea) in T42/T42p series: New LCD front bezel FRU is shipped with clear plate FRU. When you replace the LCD front bezel, you need to stick the LG-IBM logo plate which is contained in the clear plate FRU as shown in this figure.

13N5528

Parts list FRU System miscellaneous parts (15.0-in. LCD models): v Cable, RJ11-docking connector on system board v DC in cable v (c) Hard disk drive guide rail v Sheet for DSP connector v (e) I/O plate bracket v (f) Support structure v Harness (left) v (b) Antenna cable guide v Bracket holder, LCD cable v (d) EMI spring, CDC v Connector bag v Screw cap (square, thin) Note: Italicized letters in parentheses are references to the exploded view on page 209. System board miscellaneous parts v Insulator, PC Card slot v Insulator, louver v Insulator, docking latch v Insulator, security chip v Insulator, docking connector v Insulator, fan v Insulator, Mg v S-video gasket v Form on system board v Insulator, louver, hard disk drive v Mic rubber v Stud, triangle v Audio connector bracket v Security chip spacer v Stud, system board v Screw cap (square, thin) Base, PC Card slot kit for T40/T40p series v Cover, PC Card slot v Spacer, PC Card slot v Spring, PC Card slot cover 13R2913 N P/N 13R2915 CRU ID N

13N5345

Parts list FRU LCD miscellaneous parts (14.1-in. LCD models): v Tape, LCD FPC v Tape on Bluetooth wireless antenna v (a) LCD latch R v (b) LCD latch L assembly v (c) Cable bushing (lower) v (d) Cable bushing (upper) v LED lens v Cable clip v Spiral tube v Screw caps (square, thin) v Screw caps (oval, not painted) v Screw caps (not painted) v Screw caps (square) Note: Italicized letters in parentheses are references to the exploded view on page 233. P/N 13R2449 CRU ID N

AC adapters

FRU P/N CRU ID
3-pin (72W) slim adapter for PFC model (models xxA, xxB, xxC, xxG, xxH, xxK, xxM, xxV) ASTEC OP DELTA OP SANKEN OP 08K8203 08K8207 08K8211 * * *
2-pin (72W) slim adapter for non-PFC model (models xxE, xxF, xxJ, xxP, xxS, xxU, xxY) ASTEC OP DELTA OP SANKEN OP 08K8205 08K8209 08K8213 * * *

Optional FRUs

FRU 1-GB DDR SDRAM SO-DIMM (PC2100) Hard disk drive, 80 GB, 9.5 mm, 4200 rpm, IBM STD Ultrabay Slim hard disk drive adapter Ultrabay Slim Li Polymer battery (2nd bay battery), SANYO (WW) ThinkPad Dock II Top cover and screw kit for ThinkPad Dock II PCI cover for ThinkPad Dock II ThinkPad Mini Dock AC adapter (2 pin, 120 W), DELTA for ThinkPad Mini Dock AC adapter (2 pin, 120 W), LITEON for ThinkPad Mini Dock AC adapter (3 pin, 120 W), LITEON for ThinkPad Mini Dock AC adapter (3 pin, 120 W), LITEON for ThinkPad Mini Dock ThinkPad Port Replicator II ThinkPad Slim Drive Adapter for Ultrabay 2000 Multiple battery charger Diskette drive cable Diskette drive (TEAC) Diskette drive (SONY) P/N 10K0035 08K9863 62P4553 08K8191 67P9010 46P3085 46P3086 67P9011 02K7086 02K7092 02K7094 02K7096 74P6735 62P4556 02K6642 27L0525 08K9606 08K9607 CRU ID * * * * * ** * * * * * * * * * * * *

Common parts list

Tool Triconnector wrap plug PC test card Audio wrap cable USB parallel test cable Screwdriver kit Torque screwdriver 5 mm socket wrench Screwdriver 1/4" drive spinner handle 1/4" Sq. to 1/4" hex torx adapter TR7-TR-10 tamper resistant torx bits ThinkPad Hardware Maintenance Diskette Version 1.71 or later Note: Download the file from the following Web site: http://www.ibm.com/pc/partner/infotips P/N 72X8546 35G4703 66G5180 05K2580 95F3598 05K4695 05K4694 27L93F2838 00P6967

Power cords (system)

An IBM power cord for a specific country or region is usually available only in that country or region: For 2-pin power cords:
Region Canada, U.S. Japan Argentina Brazil P/N CRU ID
13H5264 * 74P4331 36L8870 49P2095

For 3-pin power cords:

Region Australia, New Zealand Taiwan, Thailand Italy Denmark U.K., China (Hong Kong S.A.R.) European countries India, South Africa Israel Korea China (P.R.C.) (other than Hong Kong S.A.R.) Switzerland P/N CRU ID
76H3514 * 76H3516 76H3530 76H3520 76H3524 76H3518 76H3522 76H3532 76H3535 02K0539 76H3528
Power cords (ThinkPad Dock and ThinkPad Dock II)
An IBM power cord for a specific country or region is usually available only in that country or region: For 3-pin power cords:
Region Argentina Australia, New Zealand Brazil Canada, Thailand, U.S. Denmark European countries India, South Africa Israel Italy Japan Korea China (P.R.C.) (other than Hong Kong S.A.R) Switzerland U.K. P/N 36L8868 75H8988 49P2101 75H8989 75H8992 75H8990 75H8993 75H8999 75H8998 75H8996 76H3536 02K0540 75H8997 75H8994 CRU ID *

Notices

References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of the intellectual property rights of IBM may be used instead of the IBM product, program, or service. The evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM, are the responsibility of the user. IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to the IBM Director of Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood, NY 10594, U.S.A.

Trademarks

The following terms are trademarks of the IBM Corporation in the United States or other countries or both: IBM IBM (logo) Asset ID OS/2 ThinkLight ThinkPad TrackPoint Ultrabay UltraNav Microsoft, Windows, and Windows NT are trademarks of Microsoft Corporation in the United States and/or other countries. Intel, Pentium, and SpeedStep are trademarks of Intel Corporation in the United States and/or other countries. (For a complete list of Intel trademarks, see the legal information on http://www.intel.com/) Other company, product, or service names may be the trademarks or service marks of others.