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Lenovo ThinkPad A22p ThinkPad A2* Series Hardware Maintenance Manual (October - Page 123

: Memory 128 MB, continued, ThinkPad A20m/p, A21m/p and A22m/p

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Parts list Model CPU Bay Mini PCI LCD device adapter A20m (Memory, 64 MB; Video memory, 8 MB) 2628-4Lx *1 2628-4Sx, 4Tx CM CD700G ROM Modem Combo (Intel) 14.1-in. XGA 2628-4Ox - - 2628-4Wx, 4Xx CDROM Combo (3Com) 2628-4Hx, 4Ix *1 DVD- Modem ROM 2633-41x except 41J, 41K 42x except 42J, 42K CDROM Modem 2633-41J, 41K, 42J, 42K Ethernet 2633-43x, 45x - 2633-4Sx, 4Tx Combo (Intel) 2633-4Wx, 4Xx Combo (3Com) A20p (Memory, 128 MB; Video memory, 16 MB) 2629-61x except 61J, 61K 2629-62x except 62J, 62K CM 700G DVDROM Modem 15.0-in. SXGA+ 2629-61J, 61K, 62J, 62K Ehternet 2629-6Sx, 6Tx Combo (Intel) 2629-6Ox - - 2629-6Ax except 6AJ, 6AK 2629-6Cx except 6CJ, 6CK CM DVD- Modem 750G ROM 2629-6AJ, 6AK, 6CJ, 6CK Ethernet 2629-6Ux, 6Vx Combo (Intel) 2629-6Zx - - HDD 12 GB - 12 GB 18 GB 12 GB 18 GB - 20 GB - *1: Memory 128 MB (continued) ThinkPad A20m/p, A21m/p and A22m/p 117

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

Match case Limit results 1 per page

Model

CPU

Bay

device

Mini PCI

adapter

LCD

HDD

A20m (Memory, 64 MB; Video memory, 8 MB)

2628-4Lx

700G

CD-

ROM

Modem

14.1-in.

XGA

12 GB

2628-4Sx, 4Tx

Combo

(Intel)

2628-4Ox

—

2628-4Wx, 4Xx

CD-

ROM

Combo

(3Com)

12 GB

2628-4Hx, 4Ix

DVD-

ROM

Modem

18 GB

2633-41x

except 41J, 41K

42x except 42J,

42K

CD-

ROM

Modem

12 GB

2633-41J, 41K,

42J, 42K

Ethernet

2633-43x, 45x

—

2633-4Sx, 4Tx

Combo

(Intel)

2633-4Wx, 4Xx

Combo

(3Com)

A20p (Memory, 128 MB; Video memory, 16 MB)

2629-61x

except 61J, 61K

2629-62x

except 62J, 62K

700G

DVD-

ROM

Modem

15.0-in.

SXGA+

18 GB

2629-61J, 61K,

62J, 62K

Ehternet

2629-6Sx, 6Tx

Combo

(Intel)

2629-6Ox

—

2629-6Ax

except 6AJ,

6AK

2629-6Cx

except 6CJ,

6CK

750G

DVD-

ROM

Modem

20 GB

2629-6AJ, 6AK,

6CJ, 6CK

Ethernet

2629-6Ux, 6Vx

Combo

(Intel)

2629-6Zx

—

*1: Memory 128 MB

(continued)

Parts list

ThinkPad A20m/p, A21m/p and A22m/p

117