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
General descriptions . . . . . . . . . . . . . . .
17
Read this first
. . . . . . . . . . . . . . . . . . . 17
Related service information
. . . . . . . . . . . . 19
Service Web site
. . . . . . . . . . . . . . . 19
Passwords
. . . . . . . . . . . . . . . . . .
19
Power management . . . . . . . . . . . . . .
21
Checkout guide . . . . . . . . . . . . . . . . . .
24
Testing the computer
. . . . . . . . . . . . . 24
Detecting system information with PC-Doctor
. . 26
Power system checkout
. . . . . . . . . . . . 26
ThinkPad X20
. . . . . . . . . . . . . . . . . .
31
Product overview . . . . . . . . . . . . . . . . .
32
Specifications . . . . . . . . . . . . . . . . .
32
Status indicators . . . . . . . . . . . . . . . .
32
Fn key combinations
. . . . . . . . . . . . . . 35
Symptom-to-FRU index . . . . . . . . . . . . . .
36
Numeric error codes
. . . . . . . . . . . . . . 36
Error messages . . . . . . . . . . . . . . . .
38
Beep symptoms . . . . . . . . . . . . . . . .
38
LCD-related symptoms . . . . . . . . . . . . .
39
Intermittent problems . . . . . . . . . . . . . .
40
Undetermined problems
. . . . . . . . . . . .
40
FRU replacement notices
. . . . . . . . . . . . . 42
Screw notices . . . . . . . . . . . . . . . . .
42
Retaining serial numbers
. . . . . . . . . . . . 43
Removing and replacing a FRU
. . . . . . . . . . 45
1010 Battery pack
. . . . . . . . . . . . . . . 46
1020 DIMM . . . . . . . . . . . . . . . . . .
47
1030 Backup battery
. . . . . . . . . . . . . . 48
1040 Hard disk drive
. . . . . . . . . . . . . . 49
1050 Keyboard
. . . . . . . . . . . . . . . .
50
1060 Mini PCI adapter
. . . . . . . . . . . . . 52
1070 Fan assembly
. . . . . . . . . . . . . . 53
1080 LCD assembly
. . . . . . . . . . . . . . 54
Contents
iii
Summary of Contents for ThinkPad X20
Page 1: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 ...
Page 2: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 IBM ...
Page 3: ...i ...
Page 36: ...30 ThinkPad X20 ...
Page 58: ...1060 Mini PCI adapter Battery pack 1010 Keyboard assembly 1050 6 52 ThinkPad X20 ...
Page 60: ...1080 LCD assembly Battery pack 1010 Keyboard assembly 1050 1 ThinkP ad 2 54 ThinkPad X20 ...
Page 69: ...Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 63 ...
Page 71: ...1 Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 65 ...
Page 84: ...78 ThinkPad X20 ...
Page 86: ...IBM Part Number 19K6850 Printed in U S A 19K685ð ...