Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione. Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente elctrica, quite la batera y, a continuacin, desconecte cualquier cable de conexin entre dispositivos.

Safety information

The following section presents safety information with which you need to be familiar before you service a ThinkPad computer.

General safety

Follow these rules to ensure general safety: v Observe good housekeeping in the area of the machines during and after maintenance. v When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift. 4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you. v Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe. v Before you start the machine, make sure that other service representatives and the customers personnel are not in a hazardous position. v Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine. v Keep your toolcase away from walk areas so that other people will not trip over it. v Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. v Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, about 8 centimeters (3 inches) from the end. v Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing. Attention: Metal objects are good electrical conductors. v Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.

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:

Internal modem Audio Infrared transfer Ethernet (on the system board)
v 56.6 Kbps v Built-in stereo speakers v Software control volume v IrDA 1.1 T40/T40p, T41/T41p series: v 10/100Base Ethernet v Gigabit Ethernet T42/T42p series: v Gigabit Ethernet
Product overview Feature Mini PCI adapter Description T40/T40p series: v ThinkPad Dual-Band 11a/b Wi-Fi Wireless Mini PCI Adapter v Cisco Aironet Wireless 802.11b v Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter T41/T41p series: v Cisco Aironet Wireless 802.11b v Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter v ThinkPad 11a/b/g Wireless LAN Mini PCI Adapter T42/T42p series: v Cisco Aironet Wireless 802.11b v Intel PRO/Wireless LAN 2100 3B Mini PCI Adapter v ThinkPad 11a/b/g Wireless LAN Mini PCI Adapter v Intel PRO Wireless 2200BG Mini-PCI Adapter v ThinkPad 11b/g Wireless LAN Mini PCI Adapter v ThinkPad 11a/b/g Wireless LAN Mini PCI Adapter II v Intel PRO Wireless 2915ABG Mini-PCI Adapter PC Card Communication daughter card (CDC) v One Type-III v Two Type-II T40/T40p, T41/T41p series: v V.90 modem daughter card (MDC) v ThinkPad Integrated Bluetooth with 56K Modem (BMDC) T42/T42p series: v ThinkPad Integrated 56K Modem (MDC-2) v ThinkPad Integrated Bluetooth III with 56K Modem (BMDC-2) Touch pad ThinkLight Battery v UltraNav Yes v Li-ion battery (6 cells) v Li-ion battery (9 cells) v Ultrabay Slim Li Polymer battery (option) v 72-watt type T40/T40p, T41/T41p series: v Windows XP Professional v Windows 2000 T42/T42p series: v Windows XP Professional
AC adapter Preinstalled operating system

Status indicators

The system status indicators show the status of the computer, as follows:
Product overview Indicator 1 Ultrabay Slim status Meaning Green: An Ultrabay Slim device is installed and in use. Blinking green: An Ultrabay Slim device is in the process of being detached. Turn off: An Ultrabay Slim device is ready to be attached or detached. Note: If you are using Windows 2000, the Ultrabay Slim status indicator does not blink while an Ultrabay Slim device is being detached. Instead, a message box pops up when the process is completed; then the indicator turns off. 2 Standby status Green: The computer is in standby mode. Blinking green: The computer is entering standby mode or hibernation mode, or is resuming normal operation. Green: The battery is in use and has enough power. The ac adapter has charged the battery completely. Blinking green: The battery is being charged, but still has enough power to operate. (At regular intervals, the indicator light turns off briefly.) Orange: The battery is being charged, but the battery power is still low. Blinking orange: The battery needs to be charged. When the indicator starts blinking orange, the computer beeps three times. Green: The computer is on and ready to use. This indicator stays lit whenever the computer is on and is not in standby mode.

1. DIMM. 2. System board. 1. DIMM. 2. System board.
Replace the backup battery and run BIOS Setup Utility to reset the time and date. Replace the backup battery and run BIOS Setup Utility to reset the time and date. Reset the password by running BIOS Setup Utility. 1. Replace the backup battery and run BIOS Setup Utility to reset the time and date. 2. System board. 1. Replace the backup battery and run BIOS Setup Utility to reset the time and date. 2. System board. Run BIOS Setup Utility to reset the time and date.
0270 Real-time clock error.
0271 Date and time errorNeither the date nor the time is set in the computer. 0280 Previous boot incomplete Default configuration used. 02F5 DMA test failed. 02F6 Software NMI failed 02F7 Fail-safe timer NMI failed 1802 Unauthorized network card is plugged inTurn off and remove the miniPCI network card.
1. Load Setup Default in BIOS Setup Utility. 2. DIMM. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. Remove Mini PCI network card. 2. System board.
Symptom-to-FRU index Symptom or error 1803 Unauthorized daughter card is plugged inTurn off and remove the daughter card. 1810 Hard disk partition layout error. FRU or action, in sequence 1. Remove the daughter card that you installed. 2. System board. 1. If the Access IBM Predesktop Area has been previously disabled, then go to the BIOS Setup Utility by pressing F1 to open the BIOS Setup Utility. Select Security --> Predesktop Area --> Access IBM Predesktop Area. Set this item to Disabled. Save and exit. 2. If the Access IBM Predesktop Area has not been previously disabled, press Enter to load Access IBM Predesktop Area. Then run RECOVER TO FACTORY CONTENTS in Access IBM Predesktop Area. 3. If item 2 failed, press F3 in the Welcome screen in RECOVER TO FACTORY CONTENTS. Run FDISK, and then delete all partitions. Run RECOVER TO FACTORY CONTENTS in Access IBM Predesktop Area again. 4. If item 3 failed, select CD-ROM boot in Startup in Access IBM Predesktop Area. Boot from the Recovery CD and perform full recovery from it. 5. If item 4 failed, replace the hard disk drive. 1. Undock docking station or port replicator if it is attached to the ThinkPad computer, and place the computer on a horizontal surface. Do not apply any physical shock to the computer. 2. Run Diagnostics --> Other Devices --> HDD Active Protection Test.
2000 IBM Hard Drive Active Protection sensor diagnostics failed. Press <Esc> to continue. Press <F1> to enter SETUP

Error messages

Symptom or error Device address conflict. FRU or action, in sequence 1. Load Setup Defaults in the BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Load Setup Defaults in the BIOS Setup Utility. 2. Backup battery. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. Load Setup Defaults in the BIOS Setup Utility. 2. Backup battery. 3. System board. 1. Check that the operating system has no failure and is installed correctly. 2. Enter the BIOS Setup Utility and see whether the hard disk drive and the diskette drive are properly identified. 3. Reseat the hard disk drive. 4. Reinstall the operating system. 5. Diskette drive. 6. Hard disk drive. 7. System board. 1. Restore the system configuration to what it was before the computer entered hibernation mode. 2. If memory size has been changed, re-create the hibernation file. Fan. System board. The Predesktop Area in the HDD is corrupted. Restore it from a recovery CD.

Symptom or error No beep, power-on indicator on, and a blank LCD during POST. v LCD backlight not working. v LCD too dark. v LCD brightness cannot be adjusted. v LCD contrast cannot be adjusted. v v v v LCD screen unreadable. Characters missing pixels. Screen abnormal. Wrong color displayed. FRU or action, in sequence System board.
1. Reseat the LCD connectors. 2. LCD assembly. 3. System board.
1. See important note for LCD-related symptoms. 2. Reseat all LCD connectors. 3. LCD assembly. 4. System board. LCD assembly.
Horizontal or vertical lines displayed on LCD.

Intermittent problems

Intermittent system hang problems can be due to a variety of causes that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. FRU replacement should be considered only when a problem recurs. When analyzing an intermittent problem, do the following: 1. Run the diagnostic test for the system board in loop mode at least 10 times. 2. If no error is detected, do not replace any FRUs. 3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Undetermined problems

If the diagnostic tests did not identify the adapter or device that has failed, if wrong devices are installed, or if the system simply is not operating, follow these procedures to isolate the failing FRU (do not isolate FRUs that have no defects). Verify that all attached devices are supported by the computer. Verify that the power supply being used at the time of the failure is operating correctly. (See Power system checkout on page 39.) 1. Turn off the computer. 2. Visually check each FRU for damage. Replace any damaged FRU. 3. Remove or disconnect all of the following devices: a. Non-ThinkPad devices b. Devices attached to the port replicator c. Printer, mouse, and other external devices d. Battery pack e. Hard disk drive f. External diskette drive g. DIMM h. CD-ROM and diskette drive in the Ultrabay i. PC Cards 4. Turn on the computer. 5. Determine whether the problem has been solved. 6. If the problem does not recur, reconnect the removed devices one at a time until you find the failing FRU. 7. If the problem remains, replace the following FRUs one at a time (do not replace a nondefective FRU): a. System board b. LCD assembly

Retaining the UUID

The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two computers in the world have the same number. When you replace the system board, you must set the UUID on the new system board as follows: 1. Install the ThinkPad Hardware Maintenance Diskette Version 1.73 or later, and restart the computer. 2. From the main menu, select 4. Assign UUID. A new UUID is created and written. If a valid UUID already exists, it is not overwritten.
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 1.73 or later. 1. Insert the ThinkPad Hardware Maintenance Diskette Version 1.73 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 1.73 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 1.73 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.

When installing: On a model with a touch pad, make sure that connector 4 is firmly attached. Note for LG-IBM models (Korea) in T40/T40p series: New palm rest FRU is shipped with the LG-IBM logo plate. When you replace the palm rest, you need to stick the LG-IBM logo plate as shown in this figure.
1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (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
Note In models with the fingerprint sensor, the sensor has been attached to the keyboard bezel FRU as the child part. In case of the fingerprint sensor has any defects and needs to be replaced, you need to replace the keyboard bezel by following the procedures in this section. The procedures are same both for the keyboard bezel without the fingerprint sensor and for the keyboard bezel with the fingerprint sensor.
Screw (quantity) Mmm, flat-head, nylon-coated (6)

Step 2

Screw (quantity) Mmm, bind-head, nylon-coated (6)
When installing: 1. Place the keyboard bezel so that the three latches are fixed in place 1.
While inserting the three latches, align the top-left corner of the keyboard bezel as in figure a.
2. Press the left edges 2 and the front edges 3 of the keyboard bezel until the latches are snapped.
3. Attach the touch pad connector 4.
4. Secure the keyboard bezel from the underside of the computer with the screws b and c.

c c c 2 c

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 71 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 1100 Palm rest or Palm rest with fingerprint sensor (for 14.1-in. LCD models) on page 88 v 1110 Keyboard bezel or Keyboard bezel with fingerprint sensor (for 15.0-in. LCD models) on page 91 If the wireless antenna jacks have tabs marked MAIN or AUX, unplug the jacks by pulling the tabs with your fingers. If the antenna jacks do not have the tabs, unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159) or pick the connectors with your fingers and gently unplug it in direction of the arrow 1 and 2.

13N6803

13N6807

13N6709

13N6805

13N6793

13N5530 13R2922 91P6788 91P6828

* * N N

(continued) ThinkPad T40/T40p, T41/T41p, T42/T42p Series
Parts list No. FRU 8 Modem daughter card (MDC) for T40/T40p, T41/T41p v 2373-12x, 14x, 16x, 19x, 1Bx, 22x, 24x, 25x, 29x, 2Ax, 2Bx, 2Cx, 3Cx, 44x, 47x, 49x, 4Bx, 4Cx, 51x, 54x, 58x, 61x, 66x, 6Bx, 6Dx, 71x, 72x, 75x, 76x, 78x, 7Ax, 7Cx, 81x, 82x, 85x, 86x, 88x, 8Ax, 8Cx, 8Dx, 91x, A3x, A4x, A5x, A6x, A7x, A8x, B2x, B5x, BDx, C1x, C3x, C4x, C7x, C8x, CAx v 2373-1Ex, 1Fx, 1Hx, 1Lx, 2Ex, 2Qx, 3Hx, 3Px, 4Hx, 4Nx, 4Qx, 4Sx, 5Hx, 5Qx, 5Rx, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8Hx, 8Jx, 8Kx, 8Px, 8Rx, 8Sx, 9Ex, AHx, AJx, AKx, ALx, AMx, BFx, BHx, BJx v 2374-12x, 14x, 2Ax, 2Cx, 44x, 4Cx, 72x, 75x, 7Cx, 82x, 8Cx v 2374-1Hx, 1Fx, 3Hx, 4Hx, 7Fx, 7Jx, 8Rx v 2375-72x v 2376-72x v 2378-D1U, D2U v 2378-DEx, DFx, DGx, DHx, EEx, EFx, EJx, EKx, ELx, ENx v 2379-D3U, D4U, D6U v 2379-DJx, DKx, ERx, ESx ThinkPad Integrated 56K Modem (MDC-2) for T42/T42p v 2373-1Ux, 1Wx, 1Yx, 1Zx, 2Tx, 2Ux, 2Wx, 2Yx, 2Zx, 3Vx, 3Wx, 3Xx, 3Yx, 4Tx, 4Ux, 4Vx, 4Wx, 4Yx, 5Tx, 5Wx, 5Xx, 6Ux, 6Vx, 6Wx, 6Yx, 7Tx, 7Vx, 7Wx, 7Xx, 7Yx, 8Tx, 8Ux, 8Vx, 8Xx, 8Yx, 8Zx, 9Tx, ATx, AUx, AVx, AYx, BTx, BVx, BXx, FTx, FVx, JTx, JXx v 2373-H1x, H2x, H4x, H5x, H8x, H9x, J1x, J2x, J3x, J4x, J5x, J6x, J7x, J8x, J9x, JCx, JDx, JEx, K2x, K3x, K5x, K6x, K7x, K8x, KAx, KCx, KDx, KEx, KGx, KHx, KJx, KLx, KPx, KQx, L2x, L3x, L4x, L5x, L6x, L7x, L8x v 2374-1Wx, 3Vx, 3Xx, 4Wx, 6Vx, 6Yx, 7Xx, 8Tx v 2374-J4x, K2x, K5x v 2378-5Ux, DTx, DVx, DWx, DYx, FUx, FZx v 2378-R1x, R2x, R3x, R4x, R5x, R6x, R7x, R8x, RSx v 2379-5Vx, DYx, DZx v 2379-R1x, R5x, R6x, R8x P/N 91P7657 CRU ID **

93P4166

Parts list No. FRU 8 P/N CRU ID **
ThinkPad Integrated Bluetooth with 56K 91P7315 Modem (BMDC) for T40/T40p, T41/T41p v 2373-32x, 33x, 42x, 4Ax, 92x, 93x, 94x, 96x, A1x, A2x, A9x, G1x, G2x, G3x, G4x, G5x, G6x, 9Cx v 2373-2Fx, 3Fx, 4Fx, 4Gx, 4Px, 9Fx, 9Gx, 9Jx, 9Hx, 9Kx, AFx, AEx, ANx, GEx, GGx, GHx, GJx, GKx, GLx, GMx v 2374-9Cx v 2374-GGx v 2379-D5x v 2378-EMx, EPx ThinkPad Integrated Bluetooth III with 91P7319 56K Modem (BMDC-2) for T42/T42p v 2373-2Xx, 3Ux, 3Zx, 4Zx, 6Zx, 7Zx, 9Ux, 9Vx, 9Xx, 9Zx, AWx, AZx, BUx, BYx, BZx, CUx, CVx, CWx, CXx, CYx, FWx, FYx, GRx, GSx, GTx, GUx, GVx, GXx, GYx, GZx, HTx, HVx, HWx, HXx, HYx, KTx, KUx, KYx, KZx v 2373-Fxx, JAx, JBx, JFx, H3x, HAx, HBx, K1x, K9x, KBx, KFx, KKx, KMx, KNx, L1x, Mxx, Nxx, Pxx, Qxx v 2374-HTx v 2374-K1x, L1x, Q2x v 2378-2Xx, DUx, DXx v 2378-R9x v 2379-DXx v 2379-R9x

Parts list No. FRU 11 Base cover assembly 2373 (14.1-in.) WW M10 (T41p, T42p) 13N5531 v 2373-ANx, GEx except GEK, GGx except GGK, GHx, GKx, GLx, GJx v 2373-3Ux, 3Vx, 8Xx except 8XK, 8Zx except 8ZK, 9Tx, 9Ux, 9Vx except 9VK, 9Xx except 9XK, 9Zx except 9ZK, BXx, BYx, BZx, Gxx except GxK, KTx, KUx except KUK v 2373-H5x, H6x, H7x, K5x except K5K, KJx, Mxx except M1K, P1x, P2x except P2K, P3x, P4x Korea (T40/T40p) v 2373-12K, 14K, 29K, 2BK, 6BK, 72K, 75K, 7CK, 82K, 8CK, 94K, G1K, G3K, G5K 13N5093 N P/N CRU ID
Korea (T41, T42) 13N5715 v 2373-1FK, 1HK, 1YK, 1ZK, 2QK, 3HK, 7FK, 7JK, 8RK, 9HK v 2373-1UK, 1WK, 2WK, 3WK, 4VK, 4WK, 5WK, 5XK, 7WK, 8TK, 8UK, 9XK, 9ZK, JTK v 2373-J3K, J5K, K1K, K2K, KLK, L1K Korea M10 (T41p, T42p) v 2373-GEK, GGK, GMK v 2373-8XK, 8ZK, 9VK, 9XK, 9ZK, GTK, GUK, GXK, KUK v 2373-K5K, M1K, P2J Base cover assembly 2373 (15.0-in.) WW (T42/T42p) 13R2923 v 2373-4Yx, 6Yx, 7Yx, AUx v 2373-3Xx, 3Yx except 3YK, 7Xx, 8Yx except 8YK, AYx, AZx, BUx, CUx, CVx, CWx except CWK, CXx except CXK, CYx except CYK, FYx, HTx except HTK, HVx, HWx except HWK, HXx, HYx, JXx except JXK, KXx except KXK, KYx except KYK, KZx v 2373-F2x, F3x, F4x, F5x, H8x, H9x, HAx, HBx, L1x except L1K, L2x, L3x, L4x, L5x except L5K, L6x except L6K, L7x except L7K, L8x, N1x except N1K, N2x except N2K, N3x, N4x, N5x, Q1x except Q1K, Q2x except Q2K, Q3x, Q4x, Q5x except Q5K Korea (T42/T42p) v 2373-3YK, 8YK, CWK, CXK, CYK, HTK, HWK, JXK, KXK, KYK v 2373-KKK, L1K, L5K, L6K, L7K, N1K, N2K, Q1K, Q2K, Q5K, Q6K 13R2929 13N5671
Parts list No. FRU 11 Base cover assembly 2374 (14.1-in.) WW (T40, T41, T42) 13N5543 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, 9Cx v 2374-1Fx except 1FK, 1Hx except 1HK, 3Hx except 3HK, 4Hx except 4HK, 7Fx except 7FK, 7Jx except 7JK, 8Rx except 8RK v 2374-1Wx except 1WK, 4Wx except 4WK, 6Vx, 8Tx except 8TK v 2374-J4x except J4K, K1x except K1K, K2x except K2K WW M10 (T41p , T42) v 2374-GGx except GGK v 2374-3Vx v 2374-K5x except K5K Korea (T40) v 2374-12K, 14K, 72K, 75K, 7CK, 82K, 8CK Korea (T41, T42) v 2374-1FK, 1HK, 3HK, 7FK, 7JK, 8RK v 2374-1WK, 4WK, 8TK v 2374-J4K, K1K, K2K Korea M10 (T41p) v 2374-GGK v 2374-K5K Base cover assembly 2374 (15.0-in.) WW (T42/ T42p) v 2374-6Yx except 6YK v 2374-3Xx, 7Xx, HTx except HTK v 2374-L1x except L1K, Q2x except Q2K Korea (T42/ T42p) v 2374-6YK v 2374-HTK v 2374-L1K, Q2K Base cover assembly 2375 (14.1-in.) WW (T40) v 2375-72x except 72K WW M10 (T41p) v Supported by CTO Korea (T40) v 2375-72K 13N5544 13N5669 13N5044 N N N 13R2924 N 13N5668 N P/N CRU ID

91P8565

13N5716

13N5672

13R2930
Parts list No. FRU 11 Base cover assembly 2375 (15.0-in.) WW (T42/T42p) v Supported by CTO Base cover assembly 2376 (14.1-in.) WW (T40) v 2376-72x except 72K WW M10 (T41p) v Supported by CTO Korea (T40) v 2376-72K Base cover assembly 2376 (15.0-in.) WW (T42/T42p) v Supported by CTO Base cover assembly 2378 (14.1-in.) WW (T40, T41, T42) 13N5546 v 2378-D1x, D2x v 2378-DEx, DFx, DGx, DHx, DLx, DMx, EEx, EFx, EJx, ELx, EMx, ENx, EPx v 2378-5Ux, DTx, DUx, ETx, EUx, EVx, FUx, FTx v 2378-R1x, R3x, R4x, R5x WW M10 (T42) v 2378-FVU Base cover assembly 2378 (15.0-in.) WW (T42/T42p) v 2378-DVx, DWx, EWx, FZx v 2378-2Zx, DYx, DXx, EXx, EYx, EZx v 2378-R2x, R9x Base cover assembly 2379 (14.1-in.) WW (T40, T41, T42 ) v 2379-D3x, D4x, D5x, D6x v 2379-DJx, DKx, ERx, ESx v 2379-5Vx v 2379-R1x, R5x Base cover assembly 2379 (15.0-in.) WW (T42/T42p) v 2379-DZx v 2379-DYx, DXx, EYx, EZx v 2379-R6x, R8x, R9x 13R2928 N 13N5547 N 13R2927 N 26R7900 N 13R2926 N 13N5545 13N5670 13N5045 N N N 13R2925 N P/N CRU ID

93P3599

Parts list No. FRU 14 P/N CRU ID
Intel PRO Wireless 2200BG Mini-PCI Adapter v 2373-1YU, 3VU, 3XU, 5TU, 6VU, 7XU, 8ZU, 9VU, CXU, GRU, KUU, KYU v 2373-J3U, J4U, K1U, K3U, K5U, L1U, L4U, M3U, N3U, P2U, Q2U v 2374-3VU, 3XU, 6VU, 7XU v 2374-J4U, K1U, K3U, K5U, Q2U v 2378-5UU, DTU, DUU, DVU, DWU, DXU, FUU, FZU v 2378-R1U, R2U, R3U, R4U, R5U, R6U, R7U, R8U, R9U v 2379-5VU, DXU, DZU v 2379-R1U, R5U, R6U, R8U, R9U 93P3483 ** (*1)
v 2373-1Yx except 1YU, 1Zx, 3Wx, 4Ux, 93P3485 5Wx, 6Wx, 7Wx, 8Yx, 9Vx except 9VU, CXx except CXU, KUx except KUU, KYx except KYU v 2373-J1x, J3x except J3U, J4x except J4U, J6x, J7x, J8x, JCx, JDx, JEx, JFx, K1x except K1U, K3x except K3U, K5x except K5U, KBx, KCx, KDx, KHx, KJx, KKx, KLx, KPx, KQx, L1x except L1U, L2x, L3x, L4x except L4U, L8x, M3x except M3U, N3x except N3U, P2x except P2U, P4x, Q2x except Q2U, Q6x v 2374-J4x except J4U, K1x except K1U, K5x except K5U, L1x except L1U, Q2x except Q2U v 2378-FTx, FVx, FZx except FZU ThinkPad 11b/g Wireless LAN Mini PCI Adapter v 2373-JTU, JTV, JXU, JXV v 2373-KGU, KGV, L6U, L6V, v 2373-JTx except JTU, JTV; JXx except JXU, JXV v 2373-KGx except KGU, KGV; L6x except L6U, L6V 93P3475 93P3477

** (*1) ** (*1)

ThinkPad 11a/b/g Wireless LAN Mini PCI Adapter II v 2373-K9U, M1U, N1U, P1U, Q1U 93P4262 ** (*1) ** (*1)
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

Parts list No. FRU 17 P/N CRU ID N
CPU assembly, Intel Pentium M 91P7435 processor 735 (1.7 GHz) for T42 v 2373-3Ux, 3Vx, 3Wx, 3Xx, 3Yx, 3Zx, 4Tx, 4Ux, 4Vx, 4Wx, 4Yx, 4Zx, 6Ux, 6Vx, 6Wx, 6Yx, 6Zx, 7Tx, 7Vx, 7Wx, 7Yx, 7Zx, 8Tx, 8Ux, 8Vx, 8Xx, 8Yx, 8Zx, AUx, AVx, AWx, AYx, BVx, JTx, JXx v 2373-F1x, F2x, F5x, H2x, H3x, H4x, H8x, H9x, K1x, K2x, K3x, K5x, K6x, K7x, K8x, K9x, KAx, KBx, KCx, KDx, KEx, KFx, KGx, KKx, KLx, KMx, KNx, L1x, L3x, L4x, L5x, L6x, L7x v 2374-3Vx, 3Xx, 4Wx, 6Vx, 6Yx, 8Tx v 2374-K1x, K2x, K5x, L1x v 2378-DVx, DWx, DXx, DYx, EUx, EVx, FTx, FVx, FZx v 2378-R2x, RQx, RRx, RSx, RTx v 2379-DXx, DYx, DZx, EUx, EVx, EWx, EXx CPU assembly, Intel Pentium M 91P7357 processor 745 (1.8 GHz) for T42/T42p v 2373-7Xx, 9Tx, 9Ux, 9Vx, 9Xx, 9Zx, AZx, BUx, BXx, BYx, BZx, CUx, CVx, CWx, CXx, CYx, GRx, GSx, GTx, GUx, GVx, GXx, GYx, GZx, HTx, HVx, HWx, HXx, HYx v 2373-F3x, F4x, KHx, KJx, L2x, M1x, M2x, M3x, M4x, M5x, N1x, N2x, N3x, N4x, N5x, Q6x v 2374-7Xx, HTx v 2378-EYx, EZx v 2378-R8x, R9x v 2379-EYx, EZx v 2379-R8x, R9x CPU assembly, Intel Pentium M processor 755 (2.0 GHz) for T42/T42p v 2373-KTx, KUx, KXx, KYx, KZx v 2373-M6x 93P4225
Parts list No. FRU 17 CPU assembly, Intel Pentium M processor 765 (2.1 GHz) for T42/T42p v 2373-Pxx, Q1x, Q2x, Q3x, Q4x, Q5x v 2374-Q2x Fan assembly (short) (14.1-in.) v 2373-12x, 14x, 16x, 19x, 1Bx, 22x, 24x, 25x, 29x, 2Ax, 2Bx, 2Cx, 42x, 44x, 47x, 49x, 4Ax, 4Bx, 4Cx, 51x, 54x, 61x, 66x, 6Bx, 6Dx, 71x, 72x, 75x, 76x, 78x, 7Ax, 7Cx, 81x, 82x, 85x, 86x, 88x, 8Ax, 8Cx, 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, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8HU, 8Jx, 8Kx, 8Px, 8Rx, 8Sx, AFx, AHx, ALx, BFx, BJx v 2374-12x, 14x, 72x, 75x, 7Cx, 82x, 8Cx v 2374-1Hx, 1Fx, 4Hx, 7Fx, 7Jx, 8Rx v 2375-72x v 2376-72x v 2378-D1U, D2U v 2378-DFx, DGx, DHx, EFx, EJx, ELx, EMx v 2379-D3U, D4U v 2379-DKx, ERx P/N 27K9924 CRU ID N

91P8393

Fan assembly (short) (14.1-in.) 26R7860 v 2373-1Ux, 1Wx, 1Yx, 1Zx, 2Tx, 2Ux, 2Wx, 2Xx, 2Yx, 3Wx, 3Zx, 4Tx, 4Ux, 4Vx, 4Wx, 4Zx, 5Tx, 5Wx, 5Xx, 6Ux, 6Vx, 6Wx, 6Zx, 7Tx, 7Vx, 7Wx, 7Zx, 8Tx, 8Ux, 8Vx, ATx, AVx, AWx, BTx, BVx, FWx, JTx v 2373-F1x, H1x, H2x, H3x, H4x, H5x, H6x, H7x, J1x, J2x, J3x, J4x, J5x, J6x, J7x, J8x, J9x, JAx, JCx, JDx, JEx, JFx, Kxx except KKx, Mxx, Pxx v 2374-1Wx, 4Wx, 6VU, 8Tx v 2374-J4x, K1x, K2x, K5x v 2378-2Xx, 5Ux, DTx, DUx, ETx, EUx, EVx, FTx, FUx v 2378-R1x, R3x, R4x, R5x, RPx, RQx, RRx v 2379-5Vx v 2379-R1x, R5x
Parts list No. FRU 18 Fan assembly (short) (15.0-in.) v 2373-4Yx, 6Yx, 7Yx, AUx, FYx v 2373-F2x, F3x, F5x, H8x, H9x, HAx, JBx, KKx, L1x, L2x, L3x, L4x, L5x, L6x, L7x, Nxx, v 2374-6Yx v 2374-L1x, v 2378-2Zx, DVx, DWx, EWx, FZx v 2378-R2x, R6x, R7x, R8x, R9x, RSx, RTx, RUx v 2379-DZx v 2379-R6x, R8x, R9x Fan assembly (long) v 2373-32x, 33x, 3Cx, 58x, 91x, 92x, 93x, 94x, 96x, 9Cx, A1x, A8x, A9x, G1x, G2x, G3x, G4x, G5x, G6x v 2373-3Fx, 3Hx, 3Px, 5Qx, 5Rx, 9Ex, 9Fx, 9Gx, 9Hx, 9Jx, 9Kx, AJx, AKx, AMx, AEx, BHx v 2374-9Cx v 2374-3Hx v 2378-DEx, EEx, EKx, ENx, EPx, ESx v 2379-D5U, D6U v 2379-DJx P/N 13R2919 CRU ID N

91P8388 91P6786

Parts list No. FRU Wireless AUX antenna Bluetooth wireless antenna assembly v 2373-42x, 4Ax, A2x v 2373-2Fx, 4Fx, 4Gx, 4Px, AFx v 2373- 4Zx, 6Zx, 7Zx, AWx, FWx v 2373-F1x, H3x, J1x, JAx, JFx, K1x, K2x, K9x, KBx, KMx, KNx, KPx v 2374-K1x, K2x, v 2378-EMx v 2378-DTx, DUx, ETx, EUx, FTx v 2378-R1x, R3x, R4x, RPx, RQx v 2379-R1x Antenna assembly Inverter card LCD panel, 14.1-in. XGA, ID Tech for T40 v 2373-12x, 14x, 16x, 19x, 1Bx, 22x, 24x, 25x, 29x, 2Ax, 2Bx, 2Cx, 42x, 44x, 47x, 49x, 4Ax, 4Bx, 4Cx, 51x, 54x, 61x, 66x, 6Bx, 6Dx, 71x, 72x, 75x, 76x, 78x, 7Ax, 7Cx, 81x, 82x, 85x, 86x, 88x, 8Ax, 8Cx, 8Dx, A2x, A3x, A5x, A6x, A7x, B2x, B5x, BDx, C1x, C3x, C4x, C7x, C8x, CAx v 2374-12x, 14x, 2Ax,2Cx, 44x, 4Cx, 72x, 75x, 7Cx, 82x, 8Cx v 2375-72x v 2376-72x v 2378-D1U, D2U v 2379-D3U, D4U P/N 13N5517 13N5515 CRU ID N N

13N5517 26P8464 11P8350

Parts list No. FRU 8 P/N CRU ID
LCD panel, 14.1-in. XGA for T40, T41, T42 v 2373-12x, 14x, 16x, 19x, 1Bx, 22x, 24x, 25x, 29x, 2Ax, 2Bx, 2Cx, 42x, 44x, 47x, 49x, 4Ax, 4Bx, 4Cx, 51x, 54x, 61x, 66x, 6Bx, 6Dx, 71x, 72x, 75x, 76x, 78x, 7Ax, 7Cx, 81x, 82x, 85x, 86x, 88x, 8Ax, 8Cx, 8Dx, A2x, A3x, 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, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8HU, 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, 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, 14x, 2Ax, 2Cx, 44x, 4Cx, 72x, 75x, 7Cx, 82x, 8Cx v 2374-1Hx, 1Fx, 4Hx, 7Fx, 7Jx, 8Rx v 2374-1Wx, 4Wx, 6Vx, 8Tx v 2374-J4x, K1x, K2x v 2375-72x v 2376-72x v 2378-D1U, D2U v 2378-DFx, DGx, DHx, EFx, EJx, ELx, EMx v 2378-5Ux, DTx, DUx, ETx, EUx, FTx, FUx v 2378-R1x, R3x, R4x, RPx, RQx v 2379-D3U, D4U v 2379-5Vx, DKx, ERx v 2379-R1x Samsung LG 11P8352 92P6726 N N
Parts list No. FRU 8 LCD panel, 14.1-in. XGA, CMO for T41, T42 v 2373-1Ex, 1Fx, 1Hx, 1Lx, 2Ex, 2Fx, 2Qx, 4Fx, 4Gx, 4Hx, 4Nx, 4Px, 4Qx, 4Sx, 5Hx, 6Kx, 6Sx, 7Ex, 7Fx, 7Jx, 7Kx, 7Mx, 7Px, 8HU, 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, 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, 14x, 2Ax,2Cx, 44x, 4Cx, 72x, 75x, 7Cx, 82x, 8Cx v 2374-1Wx, 4Wx, 6Vx, 8Tx v 2374-J4x, K1x, K2x v 2378-DFx, DGx, DHx, EFx, EJx, ELx, EMx v 2378-5Ux, DTx, DUx, ETx, EUx, FTx, FUx v 2378-R1x, R3x, R4x, RPx, RQx v 2379-5Vx, DKx, ERx v 2379-R1x Tape on Bluetooth wireless antenna v 2373-42x, 4Ax, A2x v 2373-2Fx, 4Fx, 4Gx, 4Px, AFx v 2373- 4Zx, 6Zx, 7Zx, AWx, FWx v 2373-F1x, H3x, J1x, JAx, JFx, K1x, K2x, K9x, KBx, KMx, KNx, KPx v 2374-K1x, K2x, v 2378-EMx v 2378-DTx, DUx, ETx, EUx, FTx v 2378-R1x, R3x, R4x, RPx, RQx v 2379-R1x Clear plate P/N 92P6675 CRU ID N

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, ThinkPad 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 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

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Repairing IBM ThinkPad T42 Wi-Fi Card
Removal of the Wi-Fi Card.

2011 iFixit CC BY-NC-SA

www.iFixit.com

Page 1 of 4

Step 1 - disassembly Rear Cover
Unscrew the following screws on the underside of the T42. Note: for ease of reassembly, keep track of which screws go where.

Step 2

Unscrew the 4 screws on either side of the rear end of the laptop.
Step 3 - installation Keyboard and Trackpad
Flip the laptop over and open the display carefully - the keyboard, palm rest and bezel will be loose.

Page 2 of 4

Step 4
Maneuver the palm rest away from the keyboard carefully, both the keyboard and palm rest/trackpad will come off together. **WARNING** Both the keyboard and trackpad have connectors to the motherboard. Disconnect these before completely removing either component.

Step 5 - Wi-Fi Card

To remove Wi-Fi card, first disconnect both display wires on the top right.

Page 3 of 4

Step 6
Then slide both of the metal pieces holding it down outwards, and it will pop up.

Step 7

Carefully pull it out.
To reassemble your device, follow these instructions in reverse order.
This document was last generated on Feb 12, 2011.

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