Contents
Introduction
. . . . . . . . . . . . . . . . . . .
1
Important service information
. . . . . . . . . . .
1
FRU replacement strategy
. . . . . . . . . . .
1
Hard disk drive replacement strategy:
. . . . . .
2
How to use error messages
. . . . . . . . . .
2
How to read POST error messages
. . . . . . .
2
Safety notices: multilingual translations
. . . . . . .
3
Safety information . . . . . . . . . . . . . . . . .
10
General safety . . . . . . . . . . . . . . . . .
10
Electrical safety . . . . . . . . . . . . . . . .
11
Safety inspection guide
. . . . . . . . . . . . 12
Handling electrostatic discharge-sensitive devices
13
Grounding requirements . . . . . . . . . . . .
14
Laser compliance statement
. . . . . . . . . . . . 15
Laser radiation . . . . . . . . . . . . . . . . . .
16
General descriptions
. . . . . . . . . . . . . . .
19
Read this first
. . . . . . . . . . . . . . . . . . . 19
Related service information
. . . . . . . . . . . . 21
Service Web site
. . . . . . . . . . . . . . . 21
Using Recovery CD
. . . . . . . . . . . . . . 21
Passwords
. . . . . . . . . . . . . . . . . .
22
Power management . . . . . . . . . . . . . .
24
Checkout guide . . . . . . . . . . . . . . . . . .
27
Testing the computer
. . . . . . . . . . . . . 27
Detecting system information with PC-Doctor
. . 29
Power system checkout
. . . . . . . . . . . . 29
ThinkPad X21
. . . . . . . . . . . . . . . . . .
33
Product overview . . . . . . . . . . . . . . . . .
34
Specifications . . . . . . . . . . . . . . . . .
34
Status indicators . . . . . . . . . . . . . . . .
34
Fn key combinations
. . . . . . . . . . . . . . 37
Symptom-to-FRU index . . . . . . . . . . . . . .
38
Numeric error codes
. . . . . . . . . . . . . . 38
Error messages . . . . . . . . . . . . . . . .
40
Beep symptoms . . . . . . . . . . . . . . . .
41
LCD-related symptoms . . . . . . . . . . . . .
41
Intermittent problems . . . . . . . . . . . . . .
42
Undetermined problems
. . . . . . . . . . . .
42
FRU replacement notices
. . . . . . . . . . . . . 44
Screw notices . . . . . . . . . . . . . . . . .
44
Retaining serial numbers
. . . . . . . . . . . . 45
Removing and replacing a FRU
. . . . . . . . . . 47
1010 Battery pack
. . . . . . . . . . . . . . . 48
1020 DIMM . . . . . . . . . . . . . . . . . .
49
1030 Backup battery
. . . . . . . . . . . . . . 50
1040 Hard disk drive
. . . . . . . . . . . . . . 51
1050 Keyboard
. . . . . . . . . . . . . . . .
52
1060 KBD Control Panel Assemble
. . . . . . . 54
Contents
iii
Summary of Contents for ThinkPad X21 2660
Page 1: ...IBM Mobile Systems ThinkPad X21 2660 2661 2662 Hardware Maintenance Manual February 2001 ...
Page 2: ...i ...
Page 23: ...18 ThinkPad X21 ...
Page 60: ...1070 Mini PCI adapter Battery pack 1010 Keyboard assembly 1050 6 ThinkPad X21 55 ...
Page 62: ...1090 LCD assembly Battery pack 1010 Keyboard assembly 1050 1 ThinkP ad 2 ThinkPad X21 57 ...
Page 71: ...Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm 66 ThinkPad X21 ...
Page 73: ...1 Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm 68 ThinkPad X21 ...
Page 85: ...80 ThinkPad X21 ...
Page 87: ...IBM Part Number 19K6850 Printed in U S A S1ðL 9626 ðð ...