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IBM T21, T22 ThinkPad T20, T21, T22 and T23 series 145

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Model CPU Bay

device MiniPCI

adapter LCD HDD

T23(Memory: 128 MB) (**):Memory 256 MB

2647-2Kxexcept

2KC

2647-6Kxexcept

xxC

2647-AKx,BAx,

BJx,EKx

Tual

866 CD-

ROM Modem 13.3-in.

XGA 15GB

2647-2KC,6KC DVD-

ROM

(8x)

2647-2Rx,6Rx Tual

1.0 CD-

ROM 14.1-in.

XGA 20GB

2647-2Tx,2UC,

6UC,3RG, 7RG DVD-

ROM

(8x)

2648-2Tx

2647-3TK,7TK CD-

ROM 30GB

2647-T4x(**) Tual

1.13 14.1-in.

XGA

2647-4Mx,8Mx,

MMx DVD-

ROM

(8x)

2648-4Mx,8Mx

2647-4Qx,8Qx

2647-4Nx,8Nx,

GNU,KNG, MNx 802.11/

v.90 14.1-in.

XGA

with

antenna

2648-4Nx,8Nx

2647-4Rx,8Rx Tual

1.2 Modem 14.1-in.

XGA 40GB

2648-4Rx,8Rx

2647-4Sx,8Sx,

BSx 802.11/

v.90 14.1-in.

XGA

with

antenna

2648-4Sx,8Sx

2647-5Kx,9Kx Tual

1.13 Modem 14.1-in.

SXGA+ 48GB

2647-5Lx,9Lx,

DLT,HLU

802.11/

v.90 14.1-in.

SXGA+

with

antenna

(continued)

Partslist

ThinkPad T20, T21, T22 and T23 series 145

Contents

Main Page About this manual Page Contents vi Introduction Important service information Strategy for replacing FRUs Strategy for replacing a hard-disk drive How to use error messages 2 Diskette compatibility matrix Safety notices: multilingual translations 4 Page 6 Page 8 Page 10 Page 12 Safety information General safety Electrical safety 14 Safety inspection guide Handling devices that are sensitive to electorostatic discharge 16 Grounding requirements Laser compliance statement 18 CAUTION: 20 General descriptions Read this first What to do first 22 Related service information Service web site Restoring the preloaded system Creating a Recovery Repair diskette Product Recovery program 24 Using the recovery CD To use the Recovery Repair diskette: Passwords 26 Power-on password: Hard-disk password: Supervisor password: How to remove the power-on password How to remove the hard-disk password Power management 28 Screen blank mode Standby mode Hibernation mode 30 Page Checkout guide Testing the computer 32 Page Detecting system information with PC-Doctor Hardware Info 34 Utility Power system checkout Checking the ac adapter (16-10V) Checking operational charging Checking the battery pack 36 1(+) 3 4 5(-) Checking the backup battery Red (+) Black (-) Page ThinkPad T20, T21, T22 and T23 series 40 Product overview ThinkPad T20, T21, T22 and T23 series 41 Specifications The following table lists the specifications of the ThinkPad T20, T21, T22 and T23 series : 42 ThinkPad T20, T21, T22 and T23 series 43 Status indicators The system status indicators show the status of the computer,as follows: 44 1 2 3 4 5 6 7 8 ThinkPad T20, T21, T22 and T23 series 45 FRU Tests The following table shows the test for each FRU. 46 ThinkPad T20, T21, T22 and T23 series 47 Fn key combinations The following table shows the function of each combination of Fn with a function key. 48 Symptom-to-FRU index Numeric error codes 50 ThinkPad T20, T21, T22 and T23 series 51 Error messages 52 Beep symptoms No-beep symptoms ThinkPad T20, T21, T22 and T23 series 53 LCD-related symptoms 54 Intermittent problems Undetermined problems FRU replacement notices Screw notices 56 90degrees more (Cross-section) Retaining serial numbers Restoring the serial number of the system unit Retaining the UUID 58 Removing and replacing a FRU 1010 Battery pack 60 1020 Backup battery Page 1030 Hard-disk drive Page 1040 DIMM 1050 Mini PCI adapter 66 Page 68 Page 1060 Ethernet daughter card 70 Page Page 1070 Ultrabay 2000 device 1080 Keyboard 74 Page Page Page 78 Page 80 Page 1090 Keyboard CRU insulator 82 1100 Hinge cover For T20 and T21 series 84 For T22 series 86 Page 1110Keyboard bezel 88 Page 90 Page 92 Page 1120 Fan assembly 94 a 96 Page 1130 CPU A 98 Page 1140 PC Card slot assembly 100 Page 102 1150 Speaker 104 1160 Hard-disk bay 106 1170 Ultrabay 2000 slot For T20 series For T21 and T22 series 108 Page 110 Page 112 1180 System board 114 Page 116 1190 Secure chip 1200 Microphone cable ab 118 2010 LCD assembly 120 Page 2020 Front bezel 122 2030 Inverter card 2040 LCD panel 1a 1b 124 Page 126 Page 2050 Antenna assembly 128 Page 130 2060 Sub card 4 a 132 c A b 3010 ThinkPad Dock PCI cover 134 3020 ThinkPad Dock top cover 136 A Page Page Locations Front view Rear view Bottom view Parts list T20, T21, T22 and T23 series model matrix ThinkPad T20, T21, T22 and T23 series 143 144 ThinkPad T20, T21, T22 and T23 series 145 146 Overall For T20, T21 and T22 148 ThinkPad T20, T21, T22 and T23 series 149 150 ThinkPad T20, T21, T22 and T23 series 151 For T23 152 ThinkPad T20, T21, T22 and T23 series 153 154 ThinkPad T20, T21, T22 and T23 series 155 AC adapters 156 LCD FRUs 13.3-in. XGA TFT 14.1-in. XGA TFT 158 14.1-in. SXGA+ TFT ThinkPad T20, T21, T22 and T23 series 159 Keyboard 160 Recovery CDs For Windows 98 (T22 series) ThinkPad T20, T21, T22 and T23 series 161 For Windows 2000 (T22 series) For Windows 2000/Windows NT (T22 series) 162 For Windows 98 (T23 series) ThinkPad T20, T21, T22 and T23 series 163 For Windows 2000 (T23 series) 164 For Windows 2000/Windows NT (T23 series) ThinkPad T20, T21, T22 and T23 series 165 For Windows XP (T23 series) 166 Miscellaneous parts Italicized letters in parentheses are reference to the exploded view on page 147 and 152. ThinkPad T20, T21, T22 and T23 series 167 168 ThinkPad T20, T21, T22 and T23 series 169 Optional FRUs 170 ThinkPad T20, T21, T22 and T23 series 171 Common parts list Tools 172 Power cords (system) For 3-pin power cords: Power cords (docking station) Notices Trademarks 174