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MT 2668/2669/2678/2679/2686/2687
ThinkPad Computer
Hardware Maintenance Manual
July 2005
This manual supports:
ThinkPad T43/T43p
2686/2687
ThinkPad Dock II (MT 2877)
(MT 2668/2669/2678/2679/ )
Note
Before using this information and the product it
supports, be sure to read the general information
under “Notices” on page 244.
First Edition (July 2005)
© Copyright Lenovo 2005.
Portions © Copyright International Business Machines
Corporation 2005.
All rights reserved.
U.S. GOVERNMENT USERS – RESTRICTED RIGHTS:
Our products and/or services are provided with
RESTRICTED RIGHTS. Use, duplication or disclosure by
the Government is subject to the GSA ADP Schedule
contract with Lenovo Group Limited, if any, or the standard
terms of this commercial license, or if the agency is unable
to accept this Program under these terms, then we provide
this Program under the provisions set forth in Commercial
Computer Software–Restricted Rights at FAR 52.227-19,
when applicable, or under Rights in Data-General, FAR
52.227.14 (Alternate III).
Contents
About this manual
. . . . . . . . . . . 1
. . . . . . . . . . . . . 3
Important service information . . . . . . . . . 3
Strategy for replacing FRUs . . . . . . . . . 3
Strategy for replacing a hard disk drive . . . . . 4
How to use error messages . . . . . . . . 4
Strategy for replacing FRUs for CTO, CMV, and GAV
4
Product definition . . . . . . . . . . . 4
FRU identification for CTO, CMV, and GAV products 5
Important information about replacing RoHS compliant
FRUs . . . . . . . . . . . . . . . 7
Diskette compatibility matrix . . . . . . . . . 8
Safety notices: multilingual translations . . . . . . 8
Safety information . . . . . . . . . . . . 20
General safety . . . . . . . . . . . . 20
Electrical safety . . . . . . . . . . . 21
Safety inspection guide . . . . . . . . . 23
Handling devices that are sensitive to electrostatic
discharge . . . . . . . . . . . . 24
Grounding requirements . . . . . . . . . 25
Laser compliance statement . . . . . . . . . 26
General descriptions . . . . . . . . . . 29
Read this first . . . . . . . . . . . . . 29
What to do first . . . . . . . . . . . 29
Related service information . . . . . . . . . 31
Service Web site . . . . . . . . . . . 31
Restoring the pre-installed system . . . . . . 31
Passwords . . . . . . . . . . . . . 32
Power management . . . . . . . . . . 35
Checkout guide . . . . . . . . . . . . 38
Testing the computer . . . . . . . . . . 38
Detecting system information with PC-Doctor . . . 41
Power system checkout . . . . . . . . . 42
ThinkPad T43/T43p Series . . . . . . . . . 45
Product overview . . . . . . . . . . . . 47
Specifications . . . . . . . . . . . . 47
Status indicators . . . . . . . . . . . 50
FRU tests . . . . . . . . . . . . . 53
Fn key combinations . . . . . . . . . . 55
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
© Lenovo 2005. Portions © IBM Corp. 2005.
iii
Introduction
 
 
 
FRU replacement notices . . . . . . . . . 67
Screw notices . . . . . . . . . . . . 67
Retaining serial numbers . . . . . . . . . 68
Removing and replacing a FRU . . . . . . . . 71
1010 Battery pack (14.1-in. LCD models) . . . . 72
1020 Battery pack (15.0-in. LCD models) . . . . 74
1030 Ultrabay Slim device . . . . . . . . 75
1040 Hard disk drive . . . . . . . . . . 76
1050 DIMM (optional) . . . . . . . . . 78
1060 Keyboard . . . . . . . . . . . 80
1070 DIMM (standard) . . . . . . . . . 85
1080 Modem daughter card (MDC-2) . . . . . 86
1090 Bluetooth /Modem daughter card (BMDC-3)
88
1100 Palm rest or Palm rest with fingerprint reader
(14.1-in. LCD models) . . . . . . . . . 90
1110 Keyboard bezel or Keyboard bezel with
fingerprint reader (15.0-in. LCD models) . . . 93
1120 Mini PCI adapter . . . . . . . . . 99
1130 Fan assembly . . . . . . . . . . 101
1140 Backup battery . . . . . . . . . 105
1150 Speaker assembly . . . . . . . . 107
1160 Keyboard bezel (14.1-in. LCD models)
109
1170 PC Card/ExpressCard slots (14.1-in. LCD
models) . . . . . . . . . . . . 111
1180 PC Card/ExpressCard slots (15.0-in. LCD
models) . . . . . . . . . . . . 113
1190 LCD assembly (14.1-in. LCD models) . . . 115
1200 LCD assembly (15.0-in. LCD models) . . . 120
1210 CPU . . . . . . . . . . . . 125
1220 Ultrabay Slim guide rail assembly (14.1-in.
LCD models) . . . . . . . . . . . 126
1230 Ultrabay Slim guide rail assembly (15.0-in.
LCD models) . . . . . . . . . . . 128
1240 VGA and Ultrabay Slim device eject button
cable . . . . . . . . . . . . . 131
1250 System board and base cover (14.1-in. LCD
models) . . . . . . . . . . . . 133
1260 System board, interposer card, and base
cover (15.0-in. LCD models) . . . . . . 140
2010 LCD front bezel (14.1-in. LCD models)
148
150
2030 Inverter card (14.1-in. LCD models) . . . 152
2040 Inverter card (15.0-in. LCD models) . . . 154
2050 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover
(14.1-in. LCD models) . . . . . . . . 155
2060 Wireless antenna assemblies, LCD panel,
LCD cable assembly, hinges, and LCD cover
(15.0-in. LCD models) . . . . . . . . 169
3010 ThinkPad Dock II PCI cover . . . . . . 176
3020 ThinkPad Dock II top cover . . . . . . 177
Locations . . . . . . . . . . . . . . 180
Front view . . . . . . . . . . . . 180
iv MT 2668/2669/2678/2679/2686/2687
2020 LCD front bezel (15.0-in. LCD models)
 
 
 
 
Rear view . . . . . . . . . . . . . 182
Bottom view . . . . . . . . . . . . 183
Parts list . . . . . . . . . . . . . . 184
Overall . . . . . . . . . . . . . 185
14.1-in. LCD FRUs . . . . . . . . . . 215
15.0-in. LCD FRUs . . . . . . . . . . 222
Keyboard . . . . . . . . . . . . . 231
Recovery CDs . . . . . . . . . . . 233
Miscellaneous parts . . . . . . . . . . 236
AC adapters . . . . . . . . . . . . 239
Optional FRUs . . . . . . . . . . . 240
Common parts list . . . . . . . . . . 241
Notices . . . . . . . . . . . . . . 244
Trademarks . . . . . . . . . . . . . 246
Contents v

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