Lenovo ThinkPad X23 ThinkPad X20, X21, X22, X23, X24 Hardware Maintenance Manu - Page 49

The following table shows the test for each FRU., ThinkPad X20, X21, X22, X23, X24

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2 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. 3 Bluetooth(X23, X24 Bluetooth Model Only) Green:The Integrated Bluetooth features are on. Blinking green:The Integrated Bluetooth features are functioning. 4 Bluetooth power button(X23, X24 Bluetooth Model Only) Press this button to turn the IBM Integrated Bluetooth on and off. 5 Drive in use Green:Data is read from or written to the hard disk drive, diskette drive, or drive in the Ultrabay 2000. 6 Num lock Green:The numeric keypad on the keyboard is enabled. 7 Caps lock Green:Caps Lock mode is enabled. 8 Scroll lock Green:Arrow keys can be used as screen-scroll function keys. 9 Power on Green:The power is on. The following table shows the test for each FRU. FRU System board Power LCD unit Applicable test 1. Diagnostics --> CPU/Coprocessor 2. Diagnostics --> Systemboard Diagnostics --> Other Devices --> IBM AC Adapter, IBM Battery 1. Diagnostics --> Video Adapter 2. Interactive Tests --> Video Chapter 3. ThinkPad X20, X21, X22, X23, X24 45

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±2²
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.
±3²
Bluetooth(X23,
X24 Bluetooth
Model Only)
Green:
The Integrated Bluetooth features are
on.
Blinking green:
The Integrated Bluetooth
features are functioning.
±4²
Bluetooth
power button(X23,
X24 Bluetooth
Model Only)
Press this button to turn the IBM Integrated
Bluetooth on and off.
±5²
Drive in use
Green:
Data is read from or written to the
hard disk drive, diskette drive, or drive in the
Ultrabay 2000.
±6²
Num lock
Green:
The numeric keypad on the keyboard
is enabled.
±7²
Caps lock
Green:
Caps Lock mode is enabled.
±8²
Scroll lock
Green:
Arrow keys can be used as
screen-scroll function keys.
±9²
Power on
Green:
The power is on.
The following table shows the test for each FRU.
FRU
Applicable test
System board
1.
Diagnostics
-->
CPU/Coprocessor
2.
Diagnostics
-->
Systemboard
Power
Diagnostics --> Other Devices --> IBM AC
Adapter, IBM Battery
LCD unit
1.
Diagnostics
-->
Video Adapter
2.
Interactive Tests
-->
Video
Chapter 3. ThinkPad X20, X21, X22, X23, X24
45