IBM THINKPAD A20M Manual do Utilizador Página 47
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Product overview
This section presents the following product-unique
information:
v “Specifications”
v “Status indicators” on page 44
v “FRU tests” on page 46
v “Fn key combinations” on page 48
Specifications
The following table lists the specifications of the ThinkPad
A20m/p, A21m/p and A22m/p series:
Feature Description
Processor A20m
v Intel
®
Celeron
®
processor 500 MHz, L2
256-KB cache
v Intel
®
Celeron
®
processor 550 MHz, L2
256-KB cache
v Mobile Intel
®
Pentium
®
III processor
500 MHz, L2 256-KB cache
v Mobile Intel
®
Pentium
®
III processor at
600 MHz featuring Intel
®
SpeedStep
™
technology
v Mobile Intel
®
Pentium
®
III processor at
650 MHz featuring Intel
®
SpeedStep
™
technology
v Mobile Intel
®
Pentium
®
III processor at
700 MHz featuring Intel
®
SpeedStep
™
technology
A20p
v Mobile Intel
®
Pentium
®
III processor at
700 MHz featuring Intel
®
SpeedStep
™
technology
v Mobile Intel
®
Pentium
®
III processor at
750 MHz featuring Intel
®
SpeedStep
™
technology
A21m
v Mobile Intel
®
Pentium
®
III processor at
700 MHz featuring Intel
®
SpeedStep
™
technology
v Mobile Intel
®
Pentium
®
III processor at
750 MHz featuring Intel
®
SpeedStep
™
technology
v Mobile Intel
®
Pentium
®
III processor at
800 MHz featuring Intel
®
SpeedStep
™
technology
(continued)
Product overview
ThinkPad A20m/p, A21m/p and A22m/p 41
- IBM Mobile Systems 1
- ThinkPad Computer 1
- Hardware Maintenance Manual 1
- About this manual 3
- Contents 5
- Introduction 7
- How to use error messages 8
- Diskette compatibility matrix 8
- Safety notices 10
- Safety information 20
- General safety 20
- Electrical safety 21
- Safety inspection guide 22
- Handling electrostatic 23
- Grounding requirements 24
- Laser compliance statement 24
- General descriptions 29
- Read this first 30
- Related service information 31
- Service web site 31
- Product recovery program 31
- Passwords 33
- Power-on password: 34
- Hard-disk password: 34
- Supervisor password: 34
- Power management 36
- Hibernation mode 37
- Checkout guide 39
- Testing the computer 39
- PC-Doctor 41
- Power system checkout 41
- Checking the ac adapter 42
- Checking operational charging 42
- Checking the battery pack 43
- Checking the backup battery 43
- Black (-) 44
- ThinkPad A20m/p, A21m/p and 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
- 90 degrees more 62
- (Cross-section) 62
- 180 degrees more 62
- Retaining serial numbers 63
- FRU replacement notices 64
- 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
- Step Screw (quantity) 73
- 1060 Ultrabay 2000 device 75
- 1070 Keyboard 77
- 1080 Keyboard CRU insulator 80
- Step Screw (quantity) Torque 81
- (4 kgfcm) 81
- 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 RJ45/11 97
- For A20m/p and A21m/p series 98
- Thermal rubbers location 99
- 2010 LCD assembly 100
- 2020 Front bezel 102
- 14.1-in. and 15.0-in. panels 103
- (LG)” on page 138 104
- 2030 Inverter card 105
- 2040 LCD panel 107
- (continued) 108
- Removing and replacing a FRU 110
- 3010 ThinkPad Dock PCI cover 111
- 3020 ThinkPad Dock top cover 113
- (Bottom view) 114
- Locations 118
- Front view 118
- Rear view 119
- Bottom view 120
- Parts list 121
- A series model matrix 121
- *1: Memory 128 MB 122
- AC adapter 142
- LCD FRUs 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 (A22p) 148
- For Windows 2000 (A22m) 149
- For Windows 2000 (A22p) 149
- Miscellaneous parts 151
- Optional FRUs 153
- Common parts list 154
- Power cords (docking station) 155
- Trademarks 156
- Part Number: 23P0896 158
- (1P) P/N: 23P0896 158
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