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Lenovo ThinkPad A21e Hardware Maintenance Manual for ThinkPad A22m (wireless m - Page 133

For Windows 2000, For Windows 2000/Windows NT, Spanish, European/Latin American

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For Windows 2000 Language Arabic Arabic, localized Czech Greek Hebrew Polish Russian Slovak Slovenian Thai Turkish For Windows 2000/Windows NT Language Danish Dutch English, U.K. English, U.S. French, Canadian/European Finnish German Hungarian Italian Japanese Norwegian Portuguese Spanish, European/Latin American Swedish Parts list P/N 23P9881 23P9336 23P9337 23P9341 23P9338 23P9339 23P9343 23P9345 23P9344 23P9346 23P9340 P/N 23P9316 23P9323 23P9314 23P9361 23P9317 23P9322 23P9318 23P9324 23P9321 27P1960 23P9324 23P9315 23P9319 23P9320 ThinkPad A22m wireless models 129

Section	Page
Contents	3
Introduction	5
Important service information	5
Strategy for replacing FRUs	5
Strategy for replacing a hard-disk drive	6
How to use error messages	6
Diskette compatibility matrix	6
Safety notices: multilingual translations	7
Safety information	18
General safety	18
Electrical safety	19
Safety inspection guide	20
Handling electrostaticdischarge-sensitive devices	21
Grounding requirements	22
Laser compliance statement	22
General descriptions	27
Read this first	27
What to do first	27
Related service information	29
Service Web site	29
Product recovery program	29
Restoring the pre-installed software:	29
Creating the service partition:	30
To create a recovery repair diskette	30
To use the recovery repair diskette:	31
Passwords	31
Power-on password:	32
Hard-disk password:	32
Supervisor password:	32
How to remove the power-on password	32
How to remove the hard-disk password	33
Power management	34
Screen blank mode	34
Standby mode	34
Hibernation mode	35
Checkout guide	37
Testing the computer	37
Detecting system information withPC-Doctor	39
Hardware Info	39
Utility	39
Power system checkout	39
Checking the ac adapter	40
Checking operational charging	40
Checking the battery pack	41
Checking the backup battery	41
ThinkPad A22m wireless models	43
Product overview	45
Specifications	45
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	56
Undetermined problems	57
FRU replacement notices	58
Screw notices	58
Retaining serial numbers	59
Restoring the serial number of the systemunit	59
Retaining the UUID	59
Removing and replacing a FRU	61
1010 Battery pack	62
1020 DIMM	63
1030 Mini PCI adapter	65
1040 Backup battery	67
1050 Hard-disk drive or RF ID adapter	68
1060 Ultrabay 2000 device	70
1070 Dummy card	72
1080 Keyboard	73
1090 Keyboard CRU insulator	76
1100 Hinge cover and clear sheet icon	77
1110 Keyboard bezel and speaker	78
1120 Speaker cable	81
1130 Wireless PC Card and sub card	82
1140 PC Card slot assembly	91
1150 Fan assembly	93
1160 Diskette drive	95
1170 Upper shield	97
1180 TV card	98
1190 CPU socket and CPU	99
1200 System board and RJ45/11connector assembly	100
2010 LCD assembly	103
2020 Front bezel	109
2030 Inverter card	110
2040 LCD panel	111
2050 Antenna assembly	114
3010 ThinkPad Dock PCI cover	116
3020 ThinkPad Dock top cover	118
Locations	123
Front view	123
Rear view	124
Bottom view	125
Parts list	126
Overall	126
LCD FRUs	130
14.1-in. XGA TFT	130
Keyboard	131
Recovery CDs	132
For Windows 98	132
For Windows 2000	133
For Windows 2000/Windows NT	133
Miscellaneous parts	134
Optional FRUs	135
Common parts list	137
Tools	137
Power cords (system)	137
Power cords (docking station)	138
Notices	139