IBM Laptop MT 2632 User Manual Page 23
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General descriptions
This chapter includes descriptions for any ThinkPad model
that has the PC-Doctor DOS diagnostics program. Some
descriptions might not apply to your particular computer.
Read this first
Before you go to the checkout guide, be sure to read this
section.
Important notes
v Only certified trained personnel should
service the computer.
v Read the entire FRU removal and replacement
page before replacing any FRU.
v Use new nylon-coated screws when you
replace FRUs.
v Be extremely careful during such write
operations as copying, saving, or formatting.
Drives in the computer that you are servicing
sequence might have been altered. If you select
an incorrect drive, data or programs might be
overwritten.
v Replace FRUs only for the correct model.
When you replace a FRU, make sure the model
of the machine and the FRU part number are
correct by referring to the FRU parts list.
v A FRU should not be replaced because of a
single, unreproducible failure. Single failures
can occur for a variety of reasons that have
nothing to do with a hardware defect, such as
cosmic radiation, electrostatic discharge, or
software errors. Consider replacing a FRU only
when a problem recurs. If you suspect that a
FRU is defective, clear the error log and run the
test again. If the error does not recur, do not
replace the FRU.
v Be careful not to replace a nondefective FRU.
What to do first:
When you do return a FRU, you must include the following
information in the parts exchange form or parts return form
that you attach to it:
__ 1. Name and phone number of servicer
__ 2. Date of service
__ 3. Date on which the machine failed
__ 4. Date of purchase
__ 5. Failure symptoms, error codes appearing on the
display, and beep symptoms
19
- IBM Mobile Systems 1
- ThinkPad Computer 1
- Hardware Maintenance Manual 1
- Contents 3
- Introduction 5
- How to use error messages 6
- Diskette compatibility matrix 6
- 4 ThinkPad A21e 8
- 6 ThinkPad A21e 10
- Safety notices 11
- 8 ThinkPad A21e 12
- 10 ThinkPad A21e 14
- Safety information 16
- General safety 16
- Electrical safety 17
- Safety inspection guide 18
- Handling electrostatic 19
- Grounding requirements 20
- Laser compliance statement 20
- 18 ThinkPad A21e 22
- General descriptions 23
- 20 ThinkPad A21e 24
- Related service information 25
- Service Web site 25
- Using Recovery CD 25
- Passwords 26
- Power management 28
- Hibernation mode: 29
- 26 ThinkPad A21e 30
- Checkout guide 31
- Testing the computer 31
- 28 ThinkPad A21e 32
- PC-Doctor 33
- Power system checkout 33
- Checking the ac adapter 34
- Checking operational charging 34
- Checking the battery pack 35
- Checking the backup battery 36
- ThinkPad A21e 37
- 34 ThinkPad A21e 38
- Product overview 39
- Specifications 39
- Status indicators 40
- ThinkPad A21e 37 41
- FRU Tests 42
- ThinkPad A21e 39 43
- Fn key combinations 44
- Symptom-to-FRU index 45
- Numeric error codes 45
- 42 ThinkPad A21e 46
- ThinkPad A21e 43 47
- Error messages 48
- Beep symptoms 49
- No beep symptoms 49
- LCD-related symptoms 50
- Intermittent problems 50
- Undetermined problems 51
- FRU replacement notices 51
- Screw notices 51
- Retaining serial numbers 52
- Retaining the UUID 53
- Removing and replacing a FRU 54
- 1010 Battery pack 55
- 1020 DIMM 56
- 1030 Mini PCI adapter 57
- 54 ThinkPad A21e 58
- 1040 Backup battery 59
- 1050 Hard-disk drive 60
- ThinkPad A21e 57 61
- 1060 Ultrabay 2000 device 62
- (continued) 63
- ThinkPad A21e 59 63
- 1070 Keyboard 64
- ThinkPad A21e 61 65
- 62 ThinkPad A21e 66
- 1080 Keyboard CRU insulator 67
- 1090 Hinge cover 68
- Step Screw (quantity) Torque 69
- (4 kgfcm) 69
- 66 ThinkPad A21e 70
- 1110 Speaker cable 71
- 1120 Sub card 72
- ThinkPad A21e 69 73
- 1130 PC Card slot assembly 74
- 1140 Fan assembly 75
- 72 ThinkPad A21e 76
- 1150 Diskette drive 77
- 1160 Upper shield 78
- 1170 System board 79
- 76 ThinkPad A21e 80
- 2010 LCD assembly 81
- 78 ThinkPad A21e 82
- 2020 Front bezel 83
- 80 ThinkPad A21e 84
- 2030 Inverter card 85
- 14.1-in. and 15.0-in. panels 86
- 2040 LCD panel 87
- 84 ThinkPad A21e 88
- 86 ThinkPad A21e 90
- Locations 91
- Front view 91
- Rear view 92
- Bottom view 93
- Parts list 94
- ThinkPad A21e 91 95
- 92 ThinkPad A21e 96
- 12.1-in. SVGA TFT 97
- 14.1-in. XGA TFT 97
- 15.0-in. XGA TFT 97
- 15.0-in. XGA TFT (LG) 98
- Keyboard 99
- Miscellaneous parts 100
- ThinkPad A21e 97 101
- Optional FRUs 102
- Common parts list 103
- Trademarks 104
- ThinkPad A21e 101 105
- Part Number: 06P8883 106
- Printed in U.S.A 106
- (1P) P/N: 06P8883 106
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