Main
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About this manual
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Contents
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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
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6
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8
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12
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Safety information
General safety
14
Electrical safety
Safety inspection guide
16
Handling electrostatic discharge-sensitive devices
Grounding requirements
Laser compliance statement
18
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20
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General descriptions
Read this first
What to do first
24
Related service information
Service web site
Product recovery program
Restoring the pre-installed software:
Creating the service partition:
To create a recovery repair diskette
26
To use the recovery repair diskette:
Passwords
Power-on password:
Hard-disk password:
28
Supervisor password:
How to remove the power-on password
How to remove the hard-disk password
Power management
Screen blank mode
30
Standby mode
Hibernation mode
32
Checkout guide
Testing the computer
34
4. Run the applicable function test.
Detecting system information with PC-Doctor
Hardware Info
Utility
Power system checkout
Checking the ac adapter
(16-10V)
36
Checking operational charging
Checking the battery pack
5(-) 4321(+)
Checking the backup battery
Red (+) Black (-)
38
ThinkPad A20m/p, A21m/p and A22m/p
40
Product overview
ThinkPad A20m/p, A21m/p and A22m/p 41
Specifications
The following table lists the specifications of the ThinkPad A20m/p, A21m/p and A22m/p series:
42
ThinkPad A20m/p, A21m/p and A22m/p 43
Status indicators
The system status indicators show the status of the computer, as follows:
44
ThinkPad A20m/p, A21m/p and A22m/p 45
FRU tests
The following table shows the test for each FRU.
46
ThinkPad A20m/p, A21m/p and A22m/p 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 A20m/p, A21m/p and A22m/p 51
Error messages
52
Beep symptoms
No beep symptoms
ThinkPad A20m/p, A21m/p and A22m/p 53
LCD-related symptoms
54
Intermittent problems
Undetermined problems
FRU replacement notices
Screw notices
56
90 degrees more
(Cross-section)
Retaining serial numbers
Restoring the serial number of the system unit
Retaining the UUID
58
Removing and replacing a FRU
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1030 Mini PCI adapter
For A20m/p, A21m/p series
64
For A22m/p series
1040 Backup battery
66
1050 Hard-disk drive or RF ID adapter
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1060 Ultrabay 2000 device
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1070 Keyboard
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1090 Hinge cover and clear sheet icon
1100 Keyboard bezel and speaker
76
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1110 Microphone and speaker cable
For A20m/p and A21m/p series (microphone and speaker cable)
78
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1120 Sub card
80
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1130 PC Card slot assembly
82
1140 Fan assembly
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1150 Diskette drive
86
1160 Upper shield
1170 TV card
88
1180 CPU socket and CPU
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1190 System board and RJ45/11 connector assembly
For A20m/p and A21m/p series
For A22m/p series
92
Thermal rubbers location
2010 LCD assembly
94
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2020 Front bezel
96
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2030 Inverter card
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2040 LCD panel
Page
14.1-in. and 15.0-in. panels
ThinkPad A20m/p, A21m/p and A22m/p 103
104
3010 ThinkPad Dock PCI cover
106
3020 ThinkPad Dock top cover
108
A
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Locations Front view
112
Rear view
Bottom view
114
Parts list A series model matrix
ThinkPad A20m/p, A21m/p and A22m/p 115
116
ThinkPad A20m/p, A21m/p and A22m/p 117
118
ThinkPad A20m/p, A21m/p and A22m/p 119
120
ThinkPad A20m/p, A21m/p and A22m/p 121
122
Overall
124
ThinkPad A20m/p, A21m/p and A22m/p 125
126
ThinkPad A20m/p, A21m/p and A22m/p 127
128
ThinkPad A20m/p, A21m/p and A22m/p 129
130
ThinkPad A20m/p, A21m/p and A22m/p 131
132
ThinkPad A20m/p, A21m/p and A22m/p 133
134
ThinkPad A20m/p, A21m/p and A22m/p 135
AC adapter
All of the AC adapters listed below are CRUs (customer replaceable units.)
136
LCD FRUs
12.1-in. SVGA TFT
14.1-in. XGA TFT
Following FRUs are available for MT2628-4xx, Exx, Gxx, Txx, Xxx, MT2633-4xx, Gxx, Txx.
ThinkPad A20m/p, A21m/p and A22m/p 137
15.0-in. XGA TFT (LG)
Following FRUs are available for MT2628-3xx, Jxx, Pxx, Rxx.
138
15.0-in. XGA TFT (SAMSUNG)
Following FRUs are available for MT2628-3xx, Fxx, Jxx, Pxx, Rxx .
15.0-in. SXGA+ TFT
Following FRUs are available for MT2628-Sxx and 2629-6xx.
ThinkPad A20m/p, A21m/p and A22m/p 139
15.0-in. UXGA TFT
Following FRUs are available for MT2629-Hxx, Uxx, Yxx.
Keyboard
All of the keyboards listed below are CRUs (customer replaceable units.)
140
Recovery CDs
For Windows 98 (A22m)
ThinkPad A20m/p, A21m/p and A22m/p 141
For Windows 98 (A22p)
142
For Windows 2000 (A22m)
For Windows 2000 (A22p)
ThinkPad A20m/p, A21m/p and A22m/p 143
For Windows 2000/Windows NT (A22m)
For Windows 2000/Windows NT (A22p)
144
Miscellaneous parts
ThinkPad A20m/p, A21m/p and A22m/p 145
146
Optional FRUs
ThinkPad A20m/p, A21m/p and A22m/p 147
Common parts list
Tools
148
Power cords (system)
For 3-pin power cords:
Power cords (docking station)
Notices
Trademarks
150