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IBM ThinkPad T20 Hardware Maintenance Manual

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Table of Contents
IBM Mobile Systems
ThinkPad Computer
Hardware Maintenance Manual
August 2001
This manual supports:
ThinkPad T20, T21, T22, T23
ThinkPad Dock (MT 2631)
(MT 2647/2648)

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  Summary of Contents for IBM ThinkPad T20

  • Page 1 IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual August 2001 This manual supports: ThinkPad T20, T21, T22, T23 (MT 2647/2648) ThinkPad Dock (MT 2631)
  • Page 2 IBM products, programming, or services in your country. Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative. © Copyright International Business Machines Corporation 2001. All rights reserved.
  • Page 3: Table Of Contents

    Testing the computer . . 31 Detecting system information with PC-Doctor. . 33 Power system checkout . . 34 ThinkPad T20, T21, T22 and T23 series. . 37 Product overview . . 39 Specifications . . 39 Status indicators .
  • Page 4 . 157 Recovery CDs for T23 series . . 159 Miscellaneous parts . . 161 Optional FRUs . . 167 Common parts list . . 168 Notices . 170 Trademarks . . 170 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 5: Introduction

    Advise customers to contact the PC Company HelpCenter at 800-772-2227 if they need assistance in obtaining or installing any diskette fixes. Customers in Canada should call IBM HelpPC at 800-565-3344 for assistance or download information. Strategy for replacing FRUs...
  • Page 6: How To Use Error Messages

    The compatibility of each of the drives with the diskettes for it is as follows: Diskette Diskette Compatibility drive capacity 3.5-inch 1.0 MB Read and write 2.0 MB Read and write 4.0 MB Not compatible ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 7: Safety Notices: Multilingual Translations

    Safety notices Safety notices: multilingual translations The safety notices are provided in English, French, German, Italian, and Spanish, as follows: Safety notice 1 Before the computer is powered-on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer.
  • Page 8 Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 9 Safety notices Continuation of Safety notice 2 DANGER: Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali).
  • Page 10 Utilice sólo baterías que se encuentren en la lista de piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 11 Safety notices Safety notice 4 DANGER: The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water.
  • Page 12 No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 13 Safety notices Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing.
  • Page 14 Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore. Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 15 Safety notices Safety notice 7 DANGER: Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la mise à la masse d’une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves.
  • Page 16 Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 17: Safety Information

    Safety information Safety information The following section contains the safety information that you need to be familiar with before servicing an IBM mobile computer. General safety Follow these rules to ensure general safety: v Observe good housekeeping in the area of the machines during and after maintenance.
  • Page 18: Electrical Safety

    – 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; these instructions are in the ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 19: Safety Inspection Guide

    This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-IBM features or options not covered by this inspection guide. If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
  • Page 20: Handling Electrostatic Discharge-Sensitive Devices

    Insulation must not be frayed or worn. 4. Remove the cover. 5. Check for any obvious non-IBM alterations. Use good judgment as to the safety of any non-IBM alterations. 6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
  • Page 21: Grounding Requirements

    Laser compliance statement Some IBM Personal Computer models are equipped from the factory with an optical storage device; such as a CD-ROM drive or DVD-ROM drive. They are also sold separately as options.
  • Page 22 Opening the CD-ROM drive, DVD-ROM drive or the other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 23 Laser compliance statement Some CD-ROM drives, DVD-ROM drives or the other optical storage devices contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER: Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
  • Page 24 Laser compliance statement ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 25: General Descriptions

    __ 1. Name and phone number of servicer __ 2. Date of service __ 3. Date on which the machine failed __ 4. Date of purchase __ 5. Failure symptoms, error codes appearing on the display, and beep symptoms © Copyright IBM Corp. 2001...
  • Page 26 Missing parts might be a symptom of unauthorized service or modification. v If the spindle of a hard-disk drive becomes noisy, it may have been subjected to excessive force, or dropped. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 27: Related Service Information

    “Power management” on page 27 Service web site When the latest maintenance diskette and the system program service diskette become available, a notice will be posted on http://www.ibm.com/pc/partner/infotips Product recovery program Restoring the pre-installed software: To restore the pre-installed software, you can use either the Product Recovery program or a Recovery CD.
  • Page 28: To Create A Recovery Repair Diskette

    2. Attach the external diskette drive to the computer. 3. At the prompt, press F11. (The option to press F11 appears for only a few seconds. You must press F11 quickly.) The Product Recovery program main menu appears. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 29: Passwords

    Related service information 4. If you are using Windows 2000 Professional, you are prompted to select an operating system. This menu does not appear for Windows 98 SE. 5. From the main menu, select System Utilities. Press Enter. 6. Select Create a Recovery Repair diskette. Press Enter. 7.
  • Page 30: Supervisor Password

    Supervisor password: A supervisor password (SVP) protects the system information stored in the IBM BIOS Setup Utility. The SVP must be entered in order to get access to the IBM BIOS Setup Utility and make changes to system configuration settings.
  • Page 31: Power Management

    SVP and the master HDP are known, do the following: 1. Power on the computer by pressing and holding F1. 2. Enter the SVP. The IBM BIOS Setup Utility menu appears. 3. Select Password, using the cursor keys to move down the menu.
  • Page 32: Standby Mode

    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. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 33: Hibernation Mode

    Related service information v Open the LCD cover (only if you are using Windows Me and you entered standby mode by closing the LCD cover). v Turn on the power switch. Also, the computer automatically returns from standby mode and resumes operation in either of the following events: v The ring indicator (RI) is signaled by a serial device or a PC Card device (Windows 2000 does not support the...
  • Page 34 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. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 35: Checkout Guide

    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 IBM BIOS Setup Utility before you run PC-Doctor. On the IBM BIOS Setup Utility screen, press F9, Enter, F10, and then Enter.
  • Page 36 Wireless LAN test and 802.11 Wireless Radio Test is only for some models. Some models do not have them. v To test Digital Signature Chip, the chip must be enabled and initialized. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 37: Detecting System Information With Pc-Doctor

    Checkout guide Diagnostics Hardware Info I n t e r a c t i v e Te s t s U t i l i t y Quit F1=Help Run Normal Test Run Quick Test CPU/Coprocessor Systemboard Video Adapter Serial Ports Parallel Ports Fixed Disks Diskette Drives...
  • Page 38: Power System Checkout

    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 39. Note: Noise from the ac adapter does not always indicate a defect. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 39: Checking Operational Charging

    Checkout guide 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.
  • Page 40: Checking The Backup Battery

    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 T20, T21, T22, T23 (MT 2647/2648)
  • Page 41: Thinkpad T20, T21, T22 And T23 Series

    ThinkPad T20, T21, T22 and T23 series Product overview . . 39 Specifications . . 39 Status indicators . . 42 FRU Tests . . 44 Fn key combinations . . 46 Symptom-to-FRU index . . 47 Numeric error codes .
  • Page 42 Optional FRUs . . 167 Common parts list . . 168 Tools . . 168 Power cords (system) . . 168 Power cords (docking station) . . 169 Notices . 170 Trademarks . . 170 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 43: Product Overview

    64 MB, 128 MB, or 256 MB DIMM card (optional) (maximum of 512 MB) v 64 MB, 128 MB, 256 MB, or 512 MB DIMM card (maximum of 1024 MB) CMOS RAM 242 bytes (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 44 Port replicator connector v Serial v One universal serial bus (USB) connector for T20, T21, and T22 series v Two USB connectors for T23 v RJ11 v RJ45 (covered) v TV-out (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 45 1.44 MB (3-mode), 3.5-inch diskette drive v 10-24x CD-ROM drive v 6x DVD-ROM drive T21, T22, T23 v 1.44 MB (3-mode), 3.5-inch diskette drive v 10-24x CD-ROM drive v 8x DVD-ROM drive ThinkPad T20, T21, T22 and T23 series...
  • Page 46: Status Indicators

    Fn key while pressing the NumLk key. 3 Caps lock Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press Fn + Caps Lock key. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 47 Note: If you are using Windows 2000, the Ultrabay status indicator does not blink while an Ultrabay 2000 device is being detached. Instead, a message box pops up when the process is completed; then the indicator turns off. ThinkPad T20, T21, T22 and T23 series...
  • Page 48: Fru Tests

    If enabling the TrackPoint does not correct the problem, continue with the following: v Interactive Tests --> Mouse Hard-disk drive Diagnostics --> Fixed Disks (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 49 3. If the test does not detect the error, run Diagnostics --> Memory Test - Full. 1. Turn on the computer and check the air turbulence at the louver near the power switch. 2. Run Diagnostics --> Other Devices --> IBM Fan. ThinkPad T20, T21, T22 and T23 series...
  • Page 50: Fn Key Combinations

    Fn + PgUp Turn the ThinkLight on or off. Fn + Home The LCD becomes brighter. Fn + End The LCD becomes less bright. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 51: Symptom-To-Fru Index

    If the symptom is not described there, go to “Intermittent problems” on page 53. Note For an IBM device not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device. Numeric error codes...
  • Page 52 Stuck key — Keyboard error. keyboard and the auxiliary input device. 0220 Load Setup Defaults in IBM Monitor type error — Monitor BIOS Setup Utility. type does not match the one specified in CMOS. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 53 2. Replace the backup battery. 3. System board. 02F5 1. DIMM. DIMM test failure. 2. System board. 02F6 1. DIMM. Software NMI failure. 2. System board. 02F7 1. DIMM. Fail-safe timer NMI failure. 2. System board. ThinkPad T20, T21, T22 and T23 series...
  • Page 54: Error Messages

    7. System board. Hibernation error. 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 error. Fan. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 55: Beep Symptoms

    Enter. The hard-disk password A hard-disk password is set. prompt. Type the password and press Enter. The DOS full screen looks Start the ThinkPad smaller. Configuration program and set the Screen expansion function. ThinkPad T20, T21, T22 and T23 series...
  • Page 56: Lcd-Related Symptoms

    Characters missing pixels. “LCD-related symptoms”. v Screen abnormal. 2. Reseat all LCD connectors. v Wrong color displayed. 3. LCD assembly. 4. System board. Horizontal or vertical lines LCD assembly. displayed on LCD. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 57: Intermittent Problems

    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 ThinkPad T20, T21, T22 and T23 series...
  • Page 58: Fru Replacement Notices

    Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In IBM ThinkPad computer, this problem is addressed with special nylon-coated screws that have the following characteristics: v They maintain tight connections.
  • Page 59: Retaining Serial Numbers

    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 ThinkPad T20, T21, T22 and T23 series...
  • Page 60 1. Install the ThinkPad hardware maintenance diskette version 1.62, 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. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 61: Removing And Replacing A Fru

    Attention: The system board is sensitive to, and can be damaged by, electrostatic discharge. Before touching it, establish personal grounding by touching a ground point with one hand or by using an electrostatic discharge (ESD) strap (P/N 6405959). ThinkPad T20, T21, T22 and T23 series...
  • Page 62: 1010 Battery Pack

    Removing and replacing a FRU 1010 Battery pack DANGER: Use only the battery in the parts listing for your computer. Use of an incorrect battery can result in ignition or explosion of the battery. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 63: 1020 Backup Battery

    Use of an incorrect battery can result in ignition or explosion of the battery. For access, remove this FRU: v “1010 Battery pack” on page 58 Step Screw (quantity) Torque M2.5 × 3.5 mm, (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 64 Removing and replacing a FRU Cable routing: When attaching the backup battery to the holder, route the battery cable as in the following figure. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 65: 1030 Hard-Disk Drive

    “1010 Battery pack” on page 58 Note: The hard disk is attached to the cover. Step Screw (quantity) Coin screw (1) or security screw (1) Note: Use a 2.5-mm Allen wrench to remove the security screw. (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 66 Removing and replacing a FRU When removing the hard-disk drive, open the LCD a little as shown in the figure. When installing: Make sure that the HDD connector is firmly connected. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 67: 1040 Dimm

    DIMM into the socket, and then press it firmly. Pivot the DIMM until it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily. ThinkPad T20, T21, T22 and T23 series...
  • Page 68: 1050 Mini Pci Adapter

    1050 Mini PCI adapter For access, remove this FRU: v “1010 Battery pack” on page 58 For T20, T21 and T22 series Note: Loosen the screw 1 , but do not remove it. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 69 Connector (A) is for the LAN feature and (B) is for the modem feature. Disconnect either (A) or (B) in step 6 . This slot also supports a Mini PCI modem card or Mini PCI network card. (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 70: For T23 Series

    Removing and replacing a FRU When installing: Make sure not to pinch the connector cable when re-installing the Mini PCI adapter. For T23 series Note: Loosen the screw 1 , but do not remove it. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 71 Pivot the card until it snaps into place. Make sure that the card is firmly fixed in the slot and does not move easily. ThinkPad T20, T21, T22 and T23 series...
  • Page 72: 1060 Ethernet Daughter Card

    Ethernet daughter card (EDC). For access, remove this FRU: v “1010 Battery pack” on page 58 Note: Loosen the screw 1 , but do not remove it. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 73 Removing and replacing a FRU Step Screw (quantity) Torque M2.5 × 11.5 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 74 Removing and replacing a FRU When installing: Make sure that both of the connectors 4 and 6 are firmly attached. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 75: 1070 Ultrabay 2000 Device

    2000. The procedure for installing and removing is the same for every device. Note: When you release the switch in step 1 the lever pops out. Pull the lever a little in step 2 to release the device from the bay. ThinkPad T20, T21, T22 and T23 series...
  • Page 76: 1080 Keyboard

    M2.5 × 14 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) Note: T20, T21 and T22 series do not have the removal procedures 2 to 4 . After step 1 , go to step (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 77: For T23 Series

    Note: Loosen the screw 2 , but do not remove it. Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) Step Screw (quantity) Torque M2.5 × 11.5 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 78 Removing and replacing a FRU Note: Step 5 to 10 are common for all models. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 79 Removing and replacing a FRU (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 80 Removing and replacing a FRU Note: Before installing a new keyboard, attach the easy-button cover as follows: (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 81 When installing the keyboard, do as follows: 1. Install the new keyboard, following the directions in the figure. Make sure that the keyboard edges, shown in the figure as (A), (B), and (C), are under the frame. (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 82 2 , latch the keyboard in place by using your thumbs to press firmly on the shift keys. Press the Y key to connect the keyboard to the connector on the underside of the key 3 . (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 83 PC Card slot. 4. Replace the screws, using the new screws provided with the keyboard. Then press the Y key again, hard, to make sure that the keyboard is firmly connected. ThinkPad T20, T21, T22 and T23 series...
  • Page 84: 1090 Keyboard Cru Insulator

    “1080 Keyboard” on page 72 Note: The shape of the keyboard CRU insulator vary from model to model. In some models, the shape might be slightly different from the insulator in this figure. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 85: 1100 Hinge Cover

    “1080 Keyboard” on page 72 v “1090 Keyboard CRU insulator” on page 80 Note: Step 1 is common for all models. Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (3) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 86: For T20 And T21 Series

    1. Install the hinge cover according to the step 3 , 4 and then tighten the screw 2 . In step 3 , take care not to damage the lens. 2. Make sure that both latches a are firmly attached and snap into place. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 87: For T22 Series

    Removing and replacing a FRU For T22 series Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 88 1. Install the hinge cover according to the step 5 , 6 and then tighten the screw 4 . In step 5 , take care not to damage the lens. 2. Make sure that both latches a are firmly attached and snap into place. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 89: For T23 Series

    1. Install the hinge cover according to the step 3 , 4 and then tighten the screw 2 . In step 3 , take care not to damage the lens. 2. Make sure that both latches a are firmly attached and snap into place. ThinkPad T20, T21, T22 and T23 series...
  • Page 90: 1110 Keyboard Bezel

    “1090 Keyboard CRU insulator” on page 80 v “1100 Hinge cover” on page 81 For T20, T21 and T22 series Step Screw (quantity) Torque M2.5 × 3.5 mm, nylon-coated (3) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 91 Removing and replacing a FRU Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 92: For T23 Series

    Removing and replacing a FRU For T23 series Note: Loosen the screw 1 , but do not remove it. Step Screw (quantity) Torque M2.5 × 11.5 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 93 Removing and replacing a FRU Step Screw (quantity) Torque M2.5 × 3.5 mm, nylon-coated (3) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 94 Removing and replacing a FRU Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 95 When installing, do as follows: v Make sure that the a -part is firmly attached as shown in the figure. v Make sure that all of the latches of the keyboard bezel b are firmly attached. ThinkPad T20, T21, T22 and T23 series...
  • Page 96: 1120 Fan Assembly

    -part is for T21 series and MT2647-3Cx, -3Ex, -7Cx, -7Ex (T22 series) only. Other models do not have this bracket. Step Screw (quantity) Torque M2.0 × 13.5 mm, nylon-coated (4) 24.5 Ncm (2.5 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 97 Remove the protective sheet from the thermal rubber on the fan assembly. For T21, T22 Apply the thermal grease (05K5751) on the a -part of the fan as shown in the following figure. ThinkPad T20, T21, T22 and T23 series...
  • Page 98: For T23 Series

    “1100 Hinge cover” on page 81 v “1110 Keyboard bezel” on page 86 Step Screw (quantity) Torque M2.0× 13.5 mm, nylon-coated (1) 24.5 Ncm (2.5 kgfcm) M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 99 Removing and replacing a FRU Step Screw (quantity) Torque M2.0 × 13.5 mm, nylon-coated (3) 24.5 Ncm (2.5 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 100 Removing and replacing a FRU When installing: Apply the thermal grease (05K5751) on the a -part of the fan as shown in the following figure. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 101: 1130 Cpu

    1. When attaching the CPU to the socket, do as shown in the step c . 2. Rotate the head of the screw (A) to the direction of the arrow b to lock the CPU. ThinkPad T20, T21, T22 and T23 series...
  • Page 102: For T23 Series

    1 or 1' to release the lock and then remove the CPU. When installing: Rotate the head of the screw to the direction of the arrow a or a' to lock the CPU. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 103: 1140 Pc Card Slot Assembly

    “1070 Ultrabay 2000 device” on page 71 v “1080 Keyboard” on page 72 v “1090 Keyboard CRU insulator” on page 80 Step Screw (quantity) Torque M2.0 × 13.5 mm, nylon-coated (4) 24.5 Ncm (2.5 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 104 Removing and replacing a FRU When installing the PC card slot assembly, do as shown in the figure. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 105: For T23 Series

    “1090 Keyboard CRU insulator” on page 80 v “1100 Hinge cover” on page 81 v “1110 Keyboard bezel” on page 86 Step Screw (quantity) Torque M2.0 × 13.5 mm, nylon-coated (4) 24.5 Ncm (2.5 kgfcm) ThinkPad T20, T21, T22 and T23 series...
  • Page 106: 1150 Speaker

    “1090 Keyboard CRU insulator” on page 80 v “1100 Hinge cover” on page 81 v “1110 Keyboard bezel” on page 86 Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 107 Before installing new speaker for T22 and T23 series: Secure speaker RF bracket ( a ) to the new speaker with an adhesive tape inside of the bracket. For T22 series For T23 series ThinkPad T20, T21, T22 and T23 series...
  • Page 108: 1160 Hard-Disk Bay

    Note: Step 3 and 4 are only for the case when Asset ID RF adapter has been attached into the hard-disk bay. Step Screw (quantity) Torque M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 109 Holes in the guide rail and in the aluminium sheet are aligned, and the aluminium sheet does not protrude in the c -parts. The protruding parts of the sheet can cause electrical short. ThinkPad T20, T21, T22 and T23 series...
  • Page 110: 1170 Ultrabay 2000 Slot

    Note: T20 series do not have the removal procedure 3 and 4 . After step 2 , go to step 5 . When installing: Make sure that the FPC connector is firmly attached. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 111: For T21 And T22 Series

    Note: T21 series do not have the removal procedure 3 and 4 . After step 2 , go to step 5 . When installing: Make sure that the FPC connector is firmly attached. (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 112: For T23 Series

    Removing and replacing a FRU For T23 series Step Screw (quantity) Torque M2.0 × 13.5 mm, nylon-coated (1) 24.5 Ncm (2.5 kgfcm) M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 113 Removing and replacing a FRU (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 114 14.1-in. XGA LCD or 14.1-in. SXGA+ LCD. Other models do not have the FPC bracket ( 5 ). When installing: Make sure that the FPC bracket is firmly attached as shown in the figure a . (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 115 M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) Step Screw (quantity) Torque M2 × 13.5 mm, nylon-coated (2) 24.5 Ncm (2.5 kgfcm) M2.5 × 4.8 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series...
  • Page 116 1 and if the eject lever has been poped out, push it back in the direction of arrow 2 until it snaps, and then push the upper-right corner of the slot 3 to fix it firmly. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 117: 1180 System Board

    “1160 Hard-disk bay” on page 104 v “1170 Ultrabay 2000 slot” on page 106 For T20, T21, T22 series Step Screw (quantity) Torque M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 118 Removing and replacing a FRU When installing: Make sure that all of the guides are firmly attached 1 and you have fastened the connector firmly to the underside of the system board 2 . ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 119: For T23 Series

    Removing and replacing a FRU For T23 series Step Screw (quantity) Torque M2.5 × 4.8 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 120 Removing and replacing a FRU When installing: Make sure that all of the guides are firmly attached 1 and you have fastened the connector firmly to the underside of the system board 2 . ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 121: 1190 Secure Chip

    “1150 Speaker” on page 102 v “1160 Hard-disk bay” on page 104 v “1170 Ultrabay 2000 slot” on page 106 v “1180 System board” on page 113 When installing: Make sure that the connector is firmly attached. ThinkPad T20, T21, T22 and T23 series...
  • Page 122: 1200 Microphone Cable

    “1180 System board” on page 113 Cable routing: When replacing the cable, make sure the connector is firmly attached into place a . Cable slacking is only allowed at the b -part of the frame. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 123: 2010 Lcd Assembly

    “1100 Hinge cover” on page 81 v “1110 Keyboard bezel” on page 86 v “1120 Fan assembly” on page 92 Step Screw (quantity) Torque M2.5 × 4.8 mm, nylon-coated (4) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 124 Removing and replacing a FRU For models excepting MT2647-5Lx, 9Lx, DLx, HLx Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) M2.5 × 4.8 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 125 Removing and replacing a FRU For MT2647-5Lx, 9Lx, DLx, HLx Step Screw (quantity) Torque M2.5 × 14 mm, nylon-coated (1) 39.2 Ncm (4 kgfcm) M2.5 × 4.8 mm, nylon-coated (2) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22 and T23 series...
  • Page 126: 2020 Front Bezel

    “1110 Keyboard bezel” on page 86 v “1120 Fan assembly” on page 92 v “2010 LCD assembly” on page 119 Step Screw (quantity) Torque M2.5 × 4.8 mm, nylon-coated (3) 39.2 Ncm (4 kgfcm) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 127: 2030 Inverter Card

    “1120 Fan assembly” on page 92 v “2010 LCD assembly” on page 119 v “2020 Front bezel” on page 122 Cable routing: When replacing the inverter card, route the connector cable as in the following figure: ThinkPad T20, T21, T22 and T23 series...
  • Page 128: 2040 Lcd Panel

    LCD. To do this, remove the screw from both side of the adapter as shown in the figure 1a . Remove the connector cover for the others as shown in the figure 1b . (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 129 M2 × 4 mm, nylon-coated (4) 24.5 Ncm (2.5 kgfcm) For 14.1-in. LCD, LG (05K9567), SAMSUNG (05K9678), 14.1-in. SXGA+ LCD, LG (05K9567), LG (46L2495) M2 × 4 mm, nylon-coated (4) 24.5 Ncm (2.5 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 130 Removing and replacing a FRU (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 131 Removing and replacing a FRU Cable routing: When installing the LCD, route the connector cable as in the following figure: ThinkPad T20, T21, T22 and T23 series...
  • Page 132: 2050 Antenna Assembly

    “1120 Fan assembly” on page 92 v “2010 LCD assembly” on page 119 v “2020 Front bezel” on page 122 v “2030 Inverter card” on page 123 v “2040 LCD panel” on page 124 (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 133 Removing and replacing a FRU Strip off the insulation tapes 2 securing the antenna cables. ThinkPad T20, T21, T22 and T23 series...
  • Page 134 4. Route the gray antenna cable to go through cable guides 5 . 5. Make sure that both of the cables are not twisted. 6. Stick insulation tapes 6 , 7 and 8 . ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 135: 2060 Sub Card

    “1180 System board” on page 113 v “2010 LCD assembly” on page 119 Step Screw (quantity) Torque Hex stud (6) 39.2 Ncm (4 kgfcm) M2.5 × 4.8 mm, nylon-coated (4) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 136 Take care not to damage the switch on the sub card (A). v Make sure that the guide of the card is firmly attached c as shown in the figure. ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 137: 3010 Thinkpad Dock Pci Cover

    05K6246) v ThinkPad Dock with extension plate: FRU part no. 08N1537 (PCI cover: FRU part no. 08N7317) Make sure that the PCI cover FRU suits the ThinkPad Dock you are servicing. ThinkPad T20, T21, T22 and T23 series...
  • Page 138 Note: Following illustration shows the PCI cover removal of ThinkPad Dock (FRU no. 08N1546.) Do the same procedure for the PCI cover removal of ThinkPad Dock with extension plate (FRU part no. 08N1537.) (Bottom view) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 139: 3020 Thinkpad Dock Top Cover

    Dock (FRU part no. 12P4143) is not available for the ThinkPad Dock with extension plate (FRU part no. 08N1537.) (Rear view) Step Screw (quantity) Torque M2.5 × 4.8 mm (2) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 140 Removing and replacing a FRU (Bottom view) Step Screw (quantity) Torque M2.5 × 4.8 mm (8) 39.2 Ncm (4 kgfcm) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 141 Make sure that the system lock key A is set to the Unlock position. Release the front latches in step 3 , and then remove the top cover 4 . For step 5 , see the inside view, shown in the circle. ThinkPad T20, T21, T22 and T23 series...
  • Page 142 Removing and replacing a FRU When replacing the top cover, do the following: v Make sure that the springs placed correctly. v Make sure that the device release lever is seated correctly. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 143 Removing and replacing a FRU v Make sure that the release button works correctly. ThinkPad T20, T21, T22 and T23 series...
  • Page 144: Locations

    Bay latch Eject button Ultrabay 2000 device Note: The Ultrabay 2000 accepts storage devices, such as a DVD drive or a CD-ROM drive. TrackPoint pointing stick TrackPoint buttons ThinkPad button Volume and mute buttons ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 145: Rear View

    Locations Rear view Security keyhole TV-out connector Serial connector Parallel connector External-monitor connector Modem connector Ethernet connector Power jack Universal serial bus (USB) connector Note: T23 series have two USB connectors. External-input-device connector ThinkPad T20, T21, T22 and T23 series...
  • Page 146: Bottom View

    Battery pack Battery pack latches Docking connector Mini PCI card slot DIMM PC card slots PC card eject button Infrared port Stereo headphone jack Stereo line-in jack Microphone jack Hard-disk drive LCD latches ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 147: Parts List

    MT2647- CMG700 CD- Modem 13.3-in. 12 GB 32x, 72x MT2647- DVD- Modem 14.1-in. 41x, 81x, (6x) MT2647- — 42x, 82x MT2647- Combo 44x, 84x (Intel) MT2647- Combo 46x, 86x (3Com) MT2647- Ethernet (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 148 32 GB 57x, 97x SXGA+ MT2647- Combo 5Ax, 9Ax (Xircom) MT2647- Combo 5Bx, 9Bx (3Com) MT2648- CMG800 Modem 14.1-in. 20 GB 47x, 87x MT2648- Combo 4Ax, 8Ax (Intel) MT2648- Combo 4Bx, 8Bx (3Com) (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 149 (Memory: 128 MB) MT2647- Tual 866 Modem 13.3 15 GB 2Kx, 6Kx MT2647- Tual DVD- 14.1 48 GB 5Kx, 9Kx 1.13 SXGA+ (8x) MT2647- 802.11/ 14.1 5Lx, 9Lx, v.90 SXGA+ DLx, HLx with antenna ThinkPad T20, T21, T22 and T23 series...
  • Page 150: Overall

    Parts list Overall For T20, T21 and T22 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 151 Base cover for D, E 04P3444 for Korea 04P3446 Base cover for F 04P3445 for Korea 04P3447 Base cover for G 26P9291 for Korea 26P9309 Base cover for H 08K7362 for Korea 26P9174 (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 152 Mini PCI combo card (3Com) for T20 series* 00N8117 Mini PCI combo card (Intel CR) for T21 series* 06P3829 Mini PCI combo card (Intel) for T21 series* 19K5888 Mini PCI combo card (Intel) for T22 series* 06P3809 (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 153 Cover, hard-disk drive* for T20 08K6092 Cover, hard-disk drive* for T21, T22 04P3496 Keyboard* (see “Keyboard” on page 156) Pointing stick cap* 84G6536 Easy button cover for T22 26P9183 Bracket, LCD FPC 26P9178 (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 154 AC adapter (72W), 3-pin (ASTEC) OP 02K6751 AC adapter (72W), 3-pin (DELTA) OP 02K6754 — Telephone cable (San Tai) 27L0603 — Recovery CD for T22 series (see “Recovery CDs for T22 series” on page 157) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 155: For T23

    Parts list For T23 ThinkPad T20, T21, T22 and T23 series...
  • Page 156 Battery pack, Panasonic 2.0 Ah (for L) 02K7026 for Japan 02K7030 Battery pack, SANYO 2.0 Ah (for L) 02K7028 for Japan 02K7032 Backup battery 02K6572 Cover, Mini PCI adapter slot* 08K7416 Speaker assembly 08K6089 (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 157 02K6757 AC adapter (72W), 3-pin (ASTEC) OP 02K6751 AC adapter (72W), 3-pin (DELTA) OP 02K6754 — Telephone cable (San Tai) 27L0603 — Recovery CD (see “Recovery CDs for T23 series” on page 159.) ThinkPad T20, T21, T22 and T23 series...
  • Page 158: Lcd Frus

    2. 6 is only for model with 14.1-in. XGA TFT with antenna. 13.3-in. XGA TFT LCD cover kit (13.3-in.) XGA 08K6685 for Korea 08K6764 Hinges 08K6087 LCD panel, 13.3 XGA (LG) 05K9636 LCD cable assembly 13.3 27L0562 Inverter Card 10L1402 (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 159: In. Xga Tft

    Korea 08K7413 Hinges 08K6087 Hinges for antenna 26P9196 LCD panel, 14.1 SXGA+ (Hitachi) 46L2493 LCD panel, 14.1 SXGA+ (LG) 46L2495 LCD cable assembly 14.1 SXGA+ 27L0590 Inverter Card 10L1402 Antenna assembly 26P9197 ThinkPad T20, T21, T22 and T23 series...
  • Page 160: Keyboard

    02K5713 Russian 02K5748 02K5719 Slovak 02K5754 02K5725 Slovenian 02K5756 02K5727 Spanish, European 02K5740 02K5711 Spanish, Latin American 02K5743 02K5714 Swedish or Finnish 02K5736 02K5707 Swiss 02K5741 02K5712 Thai 02K5757 02K5728 Turkish 02K5746 02K5717 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 161: Recovery Cds For T22 Series

    14P9517 Hungarian 23P9267 Italian 23P9245 Japanese 46P4398 Norwegian 23P9248 Polish 23P9264 Portuguese 23P9239 Russian 23P9268 Slovak 23P9270 Slovenian 23P9269 Spanish, European 23P9243 Spanish, Latin American 23P9238 Swedish 23P9244 Thai 14P9519 Turkish 14P9518 (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 162: Windows 2000 Recovery Cds

    English, U.K. 23P9176 English, U.S. 23P9175 French, Canadian 23P9177 French, European 23P9181 Finnish 23P9186 German 23P9182 Italian 23P9185 Japanese 27P1659 Norwegian 23P9188 Portuguese 23P9179 Spanish, European 23P9183 Spanish, Latin American 23P9178 Swedish 23P9184 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 163: Recovery Cds For T23 Series

    14P9204 Hungarian 14P9208 Italian 14P9197 Japanese 46P4419 Norwegian 14P9200 Polish 14P9205 Portuguese 14P9191 Russian 14P9209 Slovak 14P9211 Slovenian 14P9210 Spanish, European 14P9195 Spanish, Latin American 14P9190 Swedish 14P9196 Thai 14P9212 Turkish 14P9206 (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 164: Windows 2000 Recovery Cds

    English, U.K. 14P9287 English, U.S. 14P9286 French, Canadian 14P9288 French, European 14P9292 Finnish 14P9297 German 14P9293 Italian 14P9296 Japanese 46P4421 Norwegian 14P9299 Portuguese 14P9290 Spanish, European 14P9294 Spanish, Latin American 14P9289 Swedish 14P9295 ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 165: Miscellaneous Parts

    Screw caps, rear I/O card miscellaneous parts: 08K6683 v DC jack connector v Cable RJ11/45 to mini PCI v Insulator, modular jack v Insulation tape v Screw caps v Screw caps, rear (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 166 (l) Hard-disk bay guide rail v (b) Insulator, keyboard CRU v Mini PCI guide v Screw caps v Screw caps, rear Note: 08K6085 does not contain c, d, e, f and k. (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 167 (e) ESD bracket, FPC v (f) Keyboard support v (24) Bracket, LCD FRC v Mini PCI guide v Grease v Screw caps v Screw caps, rear Note: 04P3449 does not contain k. (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 168 (e) ESD bracket, FPC v (f) Keyboard support v (24) ESD bracket, LCD FPC v (k) Speaker RF bracket v Mini PCI guide v Grease v Screw caps v Screw caps, rear (continued) ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 169 (k) ESD bracket, FPC v (d) ESD bracket, LCD FPC v (c) EMI finger PCMCIA v (i) Bracket EMI speaker v Mini PCI guide v Grease v Screw caps v Screw caps, rear (continued) ThinkPad T20, T21, T22 and T23 series...
  • Page 170 I/O card miscellaneous part: 26P9422 v DC jack connector v Cable RJ11/45 to Mini PCI/EDC v Insulator, modular jack v Insulator for system board v Insulation tape v Screw caps v Screw caps, rear ThinkPad T20, T21, T22, T23 (MT 2647/2648)
  • Page 171: Optional Frus

    Top cover and screw kit for ThinkPad Dock 12P4143 ThinkPad Port Replicator 08N1536 Multiple battery charger 02K6642 Diskette drive cable 27L0525 Conversion adapter for diskette drive cable 08K6360 Video cable 27L0531 Telephone cable 05K2707 ThinkPad T20, T21, T22 and T23 series...
  • Page 172: Common Parts List

    ThinkPad hardware maintenance diskette version — 1.62 Note: Download the file from the following Web site. http://www.ibm.com/pc/partner/infotips Power cords (system) IBM power cords for a specific country are usually available only in that region: For 2-pin power cords: Region Canada, U.S.A. 13H5264...
  • Page 173: Power Cords (Docking Station)

    Parts list Power cords (docking station) IBM power cords for a specific country are usually available only in that region: For 3-pin power cords: Region Argentina 36L8868 Australia, New Zealand 75H8988 Canada, Thailand, U.S.A. 75H8989 Denmark 75H8992 European countries 75H8990...
  • Page 174: Notices

    Notices 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.
  • Page 175 Notices ThinkPad T20, T21, T22 and T23 series...
  • Page 176 Part Number: 24P2912 Printed in U.S.A. (1P) P/N: 24P2912...