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Lenovo ThinkPad A22p ThinkPad A2* Series Hardware Maintenance Manual (October - Page 134

Dxx, Exx, Fxx, Gxx except xxK, xxT, Pxx, Qxx, Rxx, Sxx, Txx except

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Page 134 highlights

Parts list No. FRU P/N 13 Base cover for A20m 2628-1xx, 2xx, 3xx, 4xx except xxK, xxT, 04P3410 2628-Bxx 2628-1xK, 2xK, 3xK, 4xK 04P3412 2628-1xT, 2xT, 3xT, 4xT 04P3411 2633-4xx except 4xK, 4xT 08K5901 2633-4xK 08K5904 2633-4xT 08K5902 Base cover for A20p 2629-6xx except 6xK, 6xT 08K5640 2629-6xK 08K5646 2629-6xT 08K5642 Base cover for A21m 2628-Dxx, Exx, Fxx, Gxx except xxK, xxT 04P3711 2628-Jxx except JxK, JxT 04P3712 2628-DxK, ExK, FxK, GxK 04P3719 2628-JxK 04P3720 2628-DxT, ExT, FxT, GxT 04P3715 2628-JxT 04P3716 2633-Gxx except GxK, GxT 04P3714 2633-GxK 04P3722 2633-GxT 04P3718 Base cover for A21p 2629-Hxx except HxK, HxT 04P3713 2629-HxK 04P3721 2629-HxT 04P3717 Base cover for A22m 2628-Pxx, Qxx, Rxx, Sxx, Txx except xxK, xxT 26P9523 2628-PxK, QxK, RxK, SxK 26P9529 2628-PxT, QxT, RxT, SxT 26P9529 2633-Txx except TxK, TxT 26P9525 2633-TxK 26P9531 2633-TxT 26P9528 Base cover for A22p 2629-Uxx except UxK, UxT 26P9524 2629-UxK 26P9530 2629-UxT 26P9527 (continued) 128 ThinkPad A20m/p, A21m/p, A22m/p

Section	Page
About this manual	3
Contents	5
Introduction	7
Important service information	7
Strategy for replacing FRUs	7
Strategy for replacing a hard-disk drive	8
How to use error messages	8
Diskette compatibility matrix	8
Safety notices: multilingual translations	9
Safety information	20
General safety	20
Electrical safety	21
Safety inspection guide	22
Handling electrostaticdischarge-sensitive devices	23
Grounding requirements	24
Laser compliance statement	24
General descriptions	29
Read this first	29
What to do first	29
Related service information	31
Service web site	31
Product recovery program	31
Restoring the pre-installed software:	31
Creating the service partition:	32
To create a recovery repair diskette	32
To use the recovery repair diskette:	33
Passwords	33
Power-on password:	34
Hard-disk password:	34
Supervisor password:	34
How to remove the power-on password	34
How to remove the hard-disk password	35
Power management	36
Screen blank mode	36
Standby mode	36
Hibernation mode	37
Checkout guide	39
Testing the computer	39
Detecting system information withPC-Doctor	41
Hardware Info	41
Utility	41
Power system checkout	41
Checking the ac adapter	42
Checking operational charging	42
Checking the battery pack	43
Checking the backup battery	43
ThinkPad A20m/p, A21m/p andA22m/p	45
Product overview	47
Specifications	47
Status indicators	50
FRU tests	52
Fn key combinations	54
Symptom-to-FRU index	55
Numeric error codes	55
Error messages	58
Beep symptoms	59
No beep symptoms	59
LCD-related symptoms	60
Intermittent problems	61
Undetermined problems	61
FRU replacement notices	62
Screw notices	62
Retaining serial numbers	63
Restoring the serial number of the systemunit	63
Retaining the UUID	63
Removing and replacing a FRU	65
1010 Battery pack	66
1020 DIMM	67
1030 Mini PCI adapter	69
For A20m/p, A21m/p series	70
For A22m/p series	71
1040 Backup battery	72
1050 Hard-disk drive or RF ID adapter	73
1060 Ultrabay 2000 device	75
1070 Keyboard	77
1080 Keyboard CRU insulator	80
1090 Hinge cover and clear sheet icon	81
1100 Keyboard bezel and speaker	82
1110 Microphone and speaker cable	84
For A20m/p and A21m/p series (microphoneand speaker cable)	84
For A22m/p series (speaker cable)	85
1120 Sub card	86
1130 PC Card slot assembly	88
1140 Fan assembly	89
1150 Diskette drive	91
1160 Upper shield	93
1170 TV card	94
1180 CPU socket and CPU	95
1190 System board and RJ45/11connector assembly	97
For A20m/p and A21m/p series	98
For A22m/p series	98
Thermal rubbers location	99
2010 LCD assembly	100
2020 Front bezel	102
12.1-in. panel	102
14.1-in. and 15.0-in. panels	103
2030 Inverter card	105
12.1-in. panel	105
14.1-in. and 15.0-in. panels	106
2040 LCD panel	107
12.1-in. panel	107
14.1-in. and 15.0-in. panels	109
3010 ThinkPad Dock PCI cover	111
3020 ThinkPad Dock top cover	113
Locations	118
Front view	118
Rear view	119
Bottom view	120
Parts list	121
A series model matrix	121
Overall	129
AC adapter	142
LCD FRUs	142
12.1-in. SVGA TFT	142
14.1-in. XGA TFT	143
15.0-in. XGA TFT (LG)	144
15.0-in. XGA TFT (SAMSUNG)	144
15.0-in. SXGA+ TFT	145
15.0-in. UXGA TFT	145
Keyboard	146
Recovery CDs	147
For Windows 98 (A22m)	147
For Windows 98 (A22p)	148
For Windows 2000 (A22m)	149
For Windows 2000 (A22p)	149
For Windows 2000/Windows NT (A22m)	149
For Windows 2000/Windows NT (A22p)	150
Miscellaneous parts	151
Optional FRUs	153
Common parts list	154
Tools	154
Power cords (system)	154
Power cords (docking station)	155
Notices	156