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IBM
Laptop
ThinkPad T20
Hardware Maintenance Manual
Page 92 (For T23 Series)
IBM ThinkPad T20 - For T23 Series
176 pages
Manual
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For
T23
series
Note:
Loosen
the
screw
1
,
but
do
not
remove
it.
2
1
3
Step
Screw
(quantity)
T
orque
3
M2.5
×
1
1.5
mm,
nylon-coated
(1)
39.2
Ncm
(4
kgfcm)
(continued)
Removing
and
replacing
a
FRU
88
ThinkPad
T20,
T21,
T22,
T23
(MT
2647/2648)
91
93
Table of Contents
Main Page
Table of Contents
3
Introduction
5
Important Service Information
5
Strategy for Replacing Frus
5
How to Use Error Messages
6
Diskette Compatibility Matrix
6
Safety Notices: Multilingual Translations
7
Safety Information
17
General Safety
17
Electrical Safety
18
Safety Inspection Guide
19
Handling Electrostatic Discharge-Sensitive Devices
20
Grounding Requirements
21
Laser Compliance Statement
21
General Descriptions
25
Read this First
25
What to Do First
25
Related Service Information
27
Product Recovery Program
27
Service Web Site
27
To Create a Recovery Repair Diskette
28
Passwords
29
Supervisor Password
30
Power Management
31
Standby Mode
32
Hibernation Mode
33
Checkout Guide
35
Testing the Computer
35
Detecting System Information with PC-Doctor
37
Power System Checkout
38
Checking Operational Charging
39
Checking the Battery Pack
39
Checking the Backup Battery
40
Thinkpad T20, T21, T22 and T23 Series
41
Product Overview
43
Specifications
43
Thinkpad T20, T21, T22 and T23
43
Status Indicators
46
FRU Tests
48
Fn Key Combinations
50
Symptom-To-FRU Index
51
Numeric Error Codes
51
Error Messages
54
Beep Symptoms
55
No Beep Symptoms
55
LCD-Related Symptoms
56
Intermittent Problems
57
Undetermined Problems
57
FRU Replacement Notices
58
Screw Notices
58
Retaining Serial Numbers
59
Restoring the Serial Number of the System Unit
59
Retaining the UUID
59
Removing and Replacing a FRU
61
1010 Battery Pack
62
1020 Backup Battery
63
1030 Hard-Disk Drive
65
1040 DIMM
67
1050 Mini PCI Adapter
68
For T20, T21 and T22 Series
68
For T23 Series
70
1060 Ethernet Daughter Card
72
1070 Ultrabay 2000 Device
75
1080 Keyboard
76
For T20, T21 and T22 Series
76
For T23 Series
77
1090 Keyboard CRU Insulator
84
1100 Hinge Cover
85
For T20 and T21 Series
86
For T22 Series
87
For T23 Series
89
1110 Keyboard Bezel
90
For T20, T21 and T22 Series
90
For T23 Series
92
1120 Fan Assembly
96
For T20, T21, T22 Series
96
For T23 Series
98
1130 Cpu
101
For T20, T21 and T22 Series
101
For T23 Series
102
1140 PC Card Slot Assembly
103
For T20, T21, T22 Series
103
For T23 Series
105
1150 Speaker
106
1160 Hard-Disk Bay
108
1170 Ultrabay 2000 Slot
110
For T20 Series
110
For T21 and T22 Series
111
For T23 Series
112
1180 System Board
117
For T20, T21, T22 Series
117
For T23 Series
119
1190 Secure Chip
121
1200 Microphone Cable
122
2010 LCD Assembly
123
2020 Front Bezel
126
2030 Inverter Card
127
2040 LCD Panel
128
2050 Antenna Assembly
132
2060 Sub Card
135
3010 Thinkpad Dock PCI Cover
137
3020 Thinkpad Dock Top Cover
139
Locations
144
Front View
144
Rear View
145
Bottom View
146
Parts List
147
T20, T21, T22 and T23 Series Model Matrix
147
Overall
150
For T20, T21 and T22
150
For T23
155
LCD Frus
158
13.3-In. XGA TFT
158
In. SXGA+ TFT
159
In. XGA TFT
159
Keyboard
160
Recovery Cds for T22 Series
161
Windows 98 Recovery Cds
161
Windows 2000 Recovery Cds
162
Windows 2000/Windows NT Recovery Cds
162
Recovery Cds for T23 Series
163
Windows 98 Recovery Cds
163
Windows 2000 Recovery Cds
164
Windows 2000/Windows NT Recovery Cds
164
Miscellaneous Parts
165
Optional Frus
171
Common Parts List
172
Power Cords (System)
172
Tools
172
Power Cords (Docking Station)
173
Notices
174
Trademarks
174
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Setup Guide
8 pages
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