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ThinkPad A20m/p, A21m/p and
A22m/p
Product overview ............41
Specifications ............41
Status indicators ...........44
FRU tests .............46
Fn key combinations ..........48
Symptom-to-FRU index ..........49
Numeric error codes ..........49
Error messages ...........52
Beep symptoms ...........53
No beep symptoms ..........53
LCD-related symptoms .........54
Intermittent problems ..........55
Undetermined problems .........55
FRU replacement notices .........56
Screw notices ............56
Retaining serial numbers.........57
Restoring the serial number of the system unit 57
Retaining the UUID .........57
Removing and replacing a FRU........59
1010 Battery pack...........60
1020 DIMM ............61
1030 Mini PCI adapter .........63
For A20m/p, A21m/p series .......64
For A22m/p series .........65
1040 Backup battery ..........66
1050 Hard-disk drive or RF ID adapter ....67
1060 Ultrabay 2000 device ........69
1070 Keyboard ...........71
1080 Keyboard CRU insulator .......74
1090 Hinge cover and clear sheet icon ....75
1100 Keyboard bezel and speaker ......76
1110 Microphone and speaker cable .....78
For A20m/p and A21m/p series (microphone and
speaker cable) ..........78
For A22m/p series (speaker cable).....79
1120 Sub card............80
1130 PC Card slot assembly .......82
1140 Fan assembly ..........83
1150 Diskette drive ..........85
1160 Upper shield...........87
1170 TV card ............88
1180 CPU socket and CPU ........89
1190 System board and RJ45/11 connector
assembly ............91
For A20m/p and A21m/p series ......92
For A22m/p series .........92
Thermal rubbers location.........93
2010 LCD assembly ..........94
2020 Front bezel ...........96
© Copyright IBM Corp. 2001
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