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IBM THINKPAD A20M Hardware Maintenance Manual
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When
installing
the
CPU,
do
as
shown
in
the
figure.
v
Rotate
the
screw
head
(
A
)
180
°
to
the
direction
of
the
arrow
b
to
lock
the
CPU.
v
When
attach
the
CPU
to
the
socket,
do
as
shown
in
the
step
c
.
Removing
and
replacing
a
FRU
90
ThinkPad
A20m/p,
A21m/p,
A22m/p
95
97
Table of Contents
About this Manual
3
Table of Contents
5
Introduction
7
Important Service Information
7
Strategy for Replacing Frus
7
How to Use Error Messages
8
Diskette Compatibility Matrix
8
Safety Notices: Multilingual Translations
9
Safety Information
20
General Safety
20
Electrical Safety
21
Safety Inspection Guide
22
Handling Electrostatic Discharge-Sensitive Devices
23
Grounding Requirements
24
General Descriptions
20
Laser Compliance Statement
24
General Descriptions
29
Read this First
29
What to Do First
29
Related Service Information
31
Service Web Site
31
Product Recovery Program
31
To Create a Recovery Repair Diskette
32
Passwords
33
Supervisor Password
34
How to Remove the Hard-Disk Password
35
Power Management
36
Hibernation Mode
37
Checkout Guide
39
Testing the Computer
39
Detecting System Information with PC-Doctor
41
Power System Checkout
41
Checking the Ac Adapter
42
Checking Operational Charging
42
Checking the Battery Pack
43
Checking the Backup Battery
43
Thinkpad A20M/P, A21M/P and A22M/P
45
Product Overview
47
Specifications
47
Status Indicators
50
FRU Tests
52
Fn Key Combinations
54
Symptom-To-FRU Index
55
Numeric Error Codes
55
Error Messages
58
Beep Symptoms
59
No Beep Symptoms
59
LCD-Related Symptoms
60
Intermittent Problems
61
Undetermined Problems
61
FRU Replacement Notices
62
Screw Notices
62
Retaining Serial Numbers
63
Restoring the Serial Number of the System Unit
63
Retaining the UUID
63
Removing and Replacing a FRU
65
1010 Battery Pack
66
1020 DIMM
67
1030 Mini PCI Adapter
69
For A20M/P, A21M/P Series
70
For A22M/P Series
71
1040 Backup Battery
72
1050 Hard-Disk Drive or RF ID Adapter
73
1060 Ultrabay 2000 Device
75
1070 Keyboard
77
1080 Keyboard CRU Insulator
80
1090 Hinge Cover and Clear Sheet Icon
81
1100 Keyboard Bezel and Speaker
82
1110 Microphone and Speaker Cable
84
For A20M/P and A21M/P Series (Microphone and Speaker Cable)
84
For A22M/P Series (Speaker Cable)
85
1120 Sub Card
86
1130 PC Card Slot Assembly
88
1140 Fan Assembly
89
1150 Diskette Drive
91
1160 Upper Shield
93
1170 TV Card
94
1180 CPU Socket and CPU
95
1190 System Board and RJ45/11 Connector Assembly
97
For A20M/P and A21M/P Series
98
For A22M/P Series
98
Thermal Rubbers Location
99
2010 LCD Assembly
100
2020 Front Bezel
102
12.1-In. Panel
102
14.1-In. and 15.0-In. Panels
103
2030 Inverter Card
105
12.1-In. Panel
105
14.1-In. and 15.0-In. Panels
106
2040 LCD Panel
107
12.1-In. Panel
107
14.1-In. and 15.0-In. Panels
109
3010 Thinkpad Dock PCI Cover
111
3020 Thinkpad Dock Top Cover
113
Locations
118
Front View
118
Rear View
119
Bottom View
120
Parts List
121
A Series Model Matrix
121
Overall
129
AC Adapter
142
LCD Frus
142
12.1-In. SVGA TFT
142
14.1-In. XGA TFT
143
In. XGA TFT (LG)
144
In. XGA TFT (SAMSUNG)
144
In. SXGA+ TFT
145
15.0-In. UXGA TFT
145
Keyboard
146
Recovery Cds
147
For Windows 98 (A22M)
147
For Windows 98 (A22P)
148
For Windows 2000 (A22M)
149
For Windows 2000 (A22P)
149
For Windows 2000/Windows NT (A22M)
149
For Windows 2000/Windows NT (A22P)
150
Miscellaneous Parts
151
Optional Frus
153
Common Parts List
154
Tools
154
Power Cords (System)
154
Power Cords (Docking Station)
155
Notices
156
Trademarks
156
Other manuals for IBM THINKPAD A20M
User Guide
66 pages
Specifications
4 pages
Setup Guide
7 pages
Compatibility Guide
8 pages
User's Manual Supplement
16 pages
5
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IBM THINKPAD A20M Specifications
General
Brand
IBM
Model
THINKPAD A20M
Category
Laptop
Language
English
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