IBM THINKPAD T22 User Manual download pdf (Page 92)

Step Screw (quantity) Torque

4 M2.5 × 4.8 mm, nylon-coated (1) 0.392 Nm

(4 kgfcm)

When installing:

1. Install the hinge cover according to the step 5, 6

and then tighten the screw 4. In step 5, take care

not to damage the lens.

2. Make sure that both latches a are firmly attached

and snap into place.

Removing and replacing a FRU

86 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 181 182

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 19
General safety 19
Electrical safety 20
Safety inspection guide 21
Grounding requirements 23
Laser compliance statement 24
CAUTION: 25
General descriptions 27
Read this first 28
Related service information 29
Service web site 29
Product Recovery program 30
Using the recovery CD 31
Passwords 32
Supervisor password: 33
Power management 34
Standby mode 35
Hibernation mode 36
Checkout guide 38
Testing the computer 38
PC-Doctor 40
Power system checkout 41
Checking operational charging 42
Checking the battery pack 42
Checking the backup battery 43
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
1010 Battery pack 66
1020 Backup battery 67
1030 Hard-disk drive 69
1040 DIMM 71
1050 Mini PCI adapter 72
1060 Ethernet daughter card 76
1070 Ultrabay 2000 device 79
1080 Keyboard 80
1090 Keyboard CRU insulator 88
1100 Hinge cover 89
For T20 and T21 series 90
For T22 series 91
(4 kgfcm) 92
1110 Keyboard bezel 94
1120 Fan assembly 100
Removing and replacing a FRU 101
For T23 series 102
Step Screw (quantity) Torque 103
(2.5 kgfcm) 103
1130 CPU 104
1140 PC Card slot assembly 106
1150 Speaker 109
1160 Hard-disk bay 111
1170 Ultrabay 2000 slot 113
For T21 and T22 series 114
1180 System board 119
1190 Secure chip 123
1200 Microphone cable 124
2010 LCD assembly 125
For MT2647-xLx, xNx 127
2020 Front bezel 128
2030 Inverter card 129
2040 LCD panel 130
(continued) 131
2050 Antenna assembly 134
2060 Sub card 137
3010 ThinkPad Dock PCI cover 139
3020 ThinkPad Dock top cover 141
(Bottom view) 142
Locations 146
Front view 146
Rear view 147
Bottom view 148
Parts list 149
For T20, T21 and T22 153
AC adapters 162
LCD FRUs 163
14.1-in. XGA TFT 164
14.1-in. SXGA+ TFT 165
Keyboard 166
Recovery CDs 167
For Windows 2000 (T22 series) 168
For Windows 98 (T23 series) 169
For Windows 2000 (T23 series) 170
For Windows XP (T23 series) 172
Miscellaneous parts 173
Optional FRUs 176
Common parts list 178
Power cords (docking station) 179
Trademarks 180
Part Number: 62P9631 182
(1P) P/N: 62P9631 182

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IBM THINKPAD T22 User Manual Page 92

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