Lenovo ThinkPad A21m Hardware Maintenance Manual for ThinkPad A21e (2628) - Page 41

Indicator, Meaning, Green, NumLk, ScrLk, mode, press

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Indicator 3 Drive in use 4 Num lock 5 Caps lock 6 Scroll lock 7 Power on Product overview Meaning Green: Data is being read from or written to the hard-disk drive, the diskette drive, or the drive in the Ultrabay 2000. When this indicator is on, do not put the computer into standby mode or turn off the computer. Note: Do not move the system while the Green drive in use light is on. Sudden physical shock could cause drive errors. Green: The numeric keypad on the keyboard is enabled. To enable or disable the keypad, press and hold the Fn key while pressing the NumLk key. Green: Caps Lock mode is enabled. To enable or disable Caps Lock mode, press Fn + Caps Lock key. 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. 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. ThinkPad A21e 37

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Indicator
Meaning
±3²
Drive in use
Green:
Data is being read from or
written to the hard-disk drive,
the diskette drive, or the drive
in the Ultrabay 2000. When
this indicator is on, do not put
the computer into standby
mode or turn off the computer.
Note:
Do not move the system while the
Green drive in use light is on. Sudden
physical shock could cause drive errors.
±4²
Num lock
Green:
The numeric keypad on the
keyboard is enabled. To enable
or disable the keypad, press
and hold the
Fn
key while
pressing the
NumLk
key.
±5²
Caps lock
Green:
Caps Lock mode is enabled.
To enable or disable Caps
Lock mode, press
Fn
+
Caps
Lock
key.
±6²
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.
±7²
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.
Product overview
ThinkPad A21e
37