Main
Page
About this manual
Page
Contents
vi
Introduction
Important service information
Strategy for replacing FRUs
Strategy for replacing a hard-disk drive
How to use error messages
2
Diskette compatibility matrix
Safety notices: multilingual translations
4
Page
6
Page
8
Page
10
Page
12
Safety information
General safety
Electrical safety
14
Safety inspection guide
Handling devices that are sensitive to electorostatic discharge
16
Grounding requirements
Laser compliance statement
18
CAUTION:
20
General descriptions
Read this first
What to do first
22
Related service information
Service web site
Restoring the preloaded system
Creating a Recovery Repair diskette
Product Recovery program
24
Using the recovery CD
To use the Recovery Repair diskette:
Passwords
26
Power-on password:
Hard-disk password:
Supervisor password:
How to remove the power-on password
How to remove the hard-disk password
Power management
28
Screen blank mode
Standby mode
Hibernation mode
30
Page
Checkout guide
Testing the computer
32
Page
Detecting system information with PC-Doctor
Hardware Info
34
Utility
Power system checkout
Checking the ac adapter
(16-10V)
Checking operational charging
Checking the battery pack
36
1(+)
3 4 5(-)
Checking the backup battery
Red (+) Black (-)
Page
ThinkPad T20, T21, T22 and T23 series
40
Product overview
ThinkPad T20, T21, T22 and T23 series 41
Specifications
The following table lists the specifications of the ThinkPad T20, T21, T22 and T23 series :
42
ThinkPad T20, T21, T22 and T23 series 43
Status indicators
The system status indicators show the status of the computer,as follows:
44
1 2 3 4 5
6 7 8
ThinkPad T20, T21, T22 and T23 series 45
FRU Tests
The following table shows the test for each FRU.
46
ThinkPad T20, T21, T22 and T23 series 47
Fn key combinations
The following table shows the function of each combination of Fn with a function key.
48
Symptom-to-FRU index
Numeric error codes
50
ThinkPad T20, T21, T22 and T23 series 51
Error messages
52
Beep symptoms
No-beep symptoms
ThinkPad T20, T21, T22 and T23 series 53
LCD-related symptoms
54
Intermittent problems
Undetermined problems
FRU replacement notices
Screw notices
56
90degrees more
(Cross-section)
Retaining serial numbers
Restoring the serial number of the system unit
Retaining the UUID
58
Removing and replacing a FRU
1010 Battery pack
60
1020 Backup battery
Page
1030 Hard-disk drive
Page
1040 DIMM
1050 Mini PCI adapter
66
Page
68
Page
1060 Ethernet daughter card
70
Page
Page
1070 Ultrabay 2000 device
1080 Keyboard
74
Page
Page
Page
78
Page
80
Page
1090 Keyboard CRU insulator
82
1100 Hinge cover
For T20 and T21 series
84
For T22 series
86
Page
1110Keyboard bezel
88
Page
90
Page
92
Page
1120 Fan assembly
94
a
96
Page
1130 CPU
A
98
Page
1140 PC Card slot assembly
100
Page
102
1150 Speaker
104
1160 Hard-disk bay
106
1170 Ultrabay 2000 slot
For T20 series
For T21 and T22 series
108
Page
110
Page
112
1180 System board
114
Page
116
1190 Secure chip
1200 Microphone cable
ab
118
2010 LCD assembly
120
Page
2020 Front bezel
122
2030 Inverter card
2040 LCD panel
1a 1b
124
Page
126
Page
2050 Antenna assembly
128
Page
130
2060 Sub card
4
a
132
c
A
b
3010 ThinkPad Dock PCI cover
134
3020 ThinkPad Dock top cover
136
A
Page
Page
Locations Front view
Rear view
Bottom view
Parts list T20, T21, T22 and T23 series model matrix
ThinkPad T20, T21, T22 and T23 series 143
144
ThinkPad T20, T21, T22 and T23 series 145
146
Overall
For T20, T21 and T22
148
ThinkPad T20, T21, T22 and T23 series 149
150
ThinkPad T20, T21, T22 and T23 series 151
For T23
152
ThinkPad T20, T21, T22 and T23 series 153
154
ThinkPad T20, T21, T22 and T23 series 155
AC adapters
156
LCD FRUs
13.3-in. XGA TFT
14.1-in. XGA TFT
158
14.1-in. SXGA+ TFT
ThinkPad T20, T21, T22 and T23 series 159
Keyboard
160
Recovery CDs
For Windows 98 (T22 series)
ThinkPad T20, T21, T22 and T23 series 161
For Windows 2000 (T22 series)
For Windows 2000/Windows NT (T22 series)
162
For Windows 98 (T23 series)
ThinkPad T20, T21, T22 and T23 series 163
For Windows 2000 (T23 series)
164
For Windows 2000/Windows NT (T23 series)
ThinkPad T20, T21, T22 and T23 series 165
For Windows XP (T23 series)
166
Miscellaneous parts
Italicized letters in parentheses are reference to the exploded view on page 147 and 152.
ThinkPad T20, T21, T22 and T23 series 167
168
ThinkPad T20, T21, T22 and T23 series 169
Optional FRUs
170
ThinkPad T20, T21, T22 and T23 series 171
Common parts list
Tools
172
Power cords (system)
For 3-pin power cords:
Power cords (docking station)
Notices
Trademarks
174