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ThinkPad T21
IBM ThinkPad T21 Service Manual
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Make
sure
that
the
system
lock
key
A
is
set
to
the
Unlock
position.
Release
the
front
latches
in
step
3
,
and
then
remove
the
top
cover
4
.
For
step
5
,
see
the
inside
view
,
shown
in
the
circle.
5
4
3
A
Removing
and
replacing
a
FRU
ThinkPad
T20,
T21,
T22
and
T23
series
137
142
144
Table of Contents
Table of Contents
5
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
19
General Safety
19
Electrical Safety
20
Safety Inspection Guide
21
Handling Devices that Are Sensitive to Electorostatic Discharge
22
Grounding Requirements
23
Laser Compliance Statement
24
General Descriptions
27
Read this First
27
What to Do First
27
Related Service Information
29
Service Web Site
29
Restoring the Preloaded System
29
Product Recovery Program
30
Using the Recovery CD
31
Passwords
32
Supervisor Password
33
Power Management
34
Standby Mode
35
Hibernation Mode
36
Checkout Guide
38
Testing the Computer
38
Detecting System Information with PC-Doctor
40
Power System Checkout
41
Checking Operational Charging
42
Checking the Battery Pack
42
Checking the Backup Battery
43
Thinkpad T20, T21, T22 and T23 Series
45
Product Overview
47
Specifications
47
Thinkpad T20, T21, T22 and T23
47
Status Indicators
47
FRU Tests
47
Status Indicators
50
FRU Tests
52
Fn Key Combinations
54
Numeric Error Codes
55
Symptom-To-FRU Index
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
Restoring the Serial Number of the System Unit
63
Retaining Serial Numbers
63
Retaining the UUID
63
Removing and Replacing a FRU
65
1010 Battery Pack
66
1020 Backup Battery
67
1030 Hard-Disk Drive
69
1040 DIMM
71
1050 Mini PCI Adapter
72
For T20, T21 and T22 Series
72
For T23 Series
74
1060 Ethernet Daughter Card
76
1070 Ultrabay 2000 Device
79
1080 Keyboard
80
For T20, T21 and T22 Series
80
For T23 Series
81
1090 Keyboard CRU Insulator
88
1100 Hinge Cover
89
For T20 and T21 Series
90
For T22 Series
91
For T23 Series
93
1110 Keyboard Bezel
94
For T20, T21 and T22 Series
95
For T23 Series
96
1120 Fan Assembly
100
For T20, T21, T22 Series
100
For T23 Series
103
1130 Cpu
104
For T20, T21 and T22 Series
104
For T23 Series
105
1140 PC Card Slot Assembly
106
For T20, T21, T22 Series
106
For T23 Series
108
1150 Speaker
109
1160 Hard-Disk Bay
111
1170 Ultrabay 2000 Slot
113
For T20 Series
113
For T21 and T22 Series
114
For T23 Series
117
1180 System Board
119
For T20, T21, T22 Series
119
For T23 Series
121
1190 Secure Chip
123
1200 Microphone Cable
124
2010 LCD Assembly
125
2020 Front Bezel
128
2030 Inverter Card
129
2040 LCD Panel
130
2050 Antenna Assembly
134
2060 Sub Card
137
3010 Thinkpad Dock PCI Cover
139
3020 Thinkpad Dock Top Cover
141
Front View
146
Locations
146
Rear View
147
Bottom View
148
Parts List
149
T20, T21, T22 and T23 Series Model Matrix
152
Overall
153
For T20, T21 and T
153
For T20, T21 and T22
157
AC Adapters
162
For T23
162
LCD Frus
163
13.3-In. XGA TFT
163
14.1-In. XGA TFT
164
In. SXGA+ TFT
165
Keyboard
166
Recovery Cds
167
For Windows 98 (T22 Series)
167
For Windows 2000 (T22 Series)
168
For Windows 2000/Windows NT (T22 Series)
168
For Windows 98 (T23 Series)
169
For Windows 2000 (T23 Series)
170
For Windows 2000/Windows NT (T23 Series)
171
For Windows XP (T23 Series)
172
Miscellaneous Parts
173
Miscellaneous Parts
176
Optional Frus
176
Common Parts List
178
Tools
178
Power Cords (System)
178
Power Cords (Docking Station)
179
Notices
180
Trademarks
180
Other manuals for IBM ThinkPad T21
User Guide
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IBM ThinkPad T21 Specifications
General
Brand
IBM
Model
ThinkPad T21
Category
Laptop
Language
English
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