IBM THINKPAD T22 User Manual Page 51
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- Table of contents
- BOOKMARKS
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Indicator Meaning
4 Scroll lock Green: Scroll Lock mode is enabled. Arrow
keys can be used as screen-scroll
function keys, but not to move the
cursor. To enable or disable Scroll
Lock mode, press Fn + ScrLk key.
Not all application programs
support this function.
5 Power on Green: This indicator stays lighted
whenever the computer is on. If
the power-on indicator is on and
the standby indicator is off, the
system is ready to use. If both the
power-on indicator and the standby
indicator are on, you can use the
computer after it returns from the
standby mode and the standby
indicator goes off.
6 Battery Green: The battery is fully charged.
Blinking green:
The battery has enough power to
operate, but is being charged.
Orange: The battery power is low. The
battery needs to be charged.
Blinking orange:
The battery needs to be charged
when the indicator starts blinking
orange, the computer beeps three
times.
7 Standby
status
Green: The computer is in standby mode.
Blinking green:
The computer is entering standby
mode or hibernation mode, or is
resuming normal operation. This
indicator does not blink in Windows
2000, Windows Me, and Windows
XP.
8 Ultrabay
status
Green: An Ultrabay 2000 device is
installed and in use.
Blinking green:
An Ultrabay 2000 device is in the
process of being detached.
Turn off: An Ultrabay 2000 device is ready
to be attached or detached.
Note: If you are using Windows 2000 or
Windows XP, the Ultrabay status indicator
does not blink while an Ultrabay 2000 device
is being detached. Instead, a message box
pops up when the process is completed; then
the indicator turns off.
Product overview
ThinkPad T20, T21, T22 and T23 series 45
- 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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