Lenovo B570e Hardware Maintenance Manual - Page 46

Fn key combinations

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Table 2. Status indicators Indicator 1 Caps lock 2 Numeric lock Meaning White: Caps Lock mode is enabled. You can enter all alphabetic characters (A-Z) in uppercase without pressing the Shift key. To enable or disable Caps Lock mode, press the caps lock key (CapsLk). White: The separate numeric keypad on the keyboard is enabled. To enable or disable the numeric keypad, press the numeric lock key (NmLk). 3 Drive in use 4 Active Protection System (APS) White: Data is being read from or written to the hard disk drive, or the optical disk drive. When this indicator is on, do not put the computer into sleep (standby) mode or turn off the computer. Note: Do not move the system while the white drive-in-use light is on. Sudden physical shock could cause drive errors. • White: Active Protection System is enabled. • Off: Active Protection System is disabled. 5 Power on • White: System is enabled. • Blinking white: System is in sleep (standby) mode. • Off: System is in hibernate mode or shut down. 6 Battery status 7 Wireless status • Blinking orange (500ms off/1s on): The remaining power of the battery is less than 5% of its capacity. • Blinking orange (100ms off/3.2s on): The battery is being charged with the remaining power between 5% and 20% of its capacity. • Orange: The computer is operating on battery power with the remaining power between 5% and 20% of its capacity. • Blinking white The battery is being charged with the remaining power between 20% and 80% of its capacity. • Off: The remaining power of the battery is more than 80% of its capacity, or the computer is operating on battery power with the remaining power between 20% and 80% of its capacity. • White: Any one of the wireless devices is enabled. • Off: All the wireless devices are disabled. Fn key combinations The following table shows the function of each combination of Fn with a function key. Table 3. Function key combinations Key combination Fn+Esc Fn+F1 Fn+F2 Description Turn on or turn off the integrated camera. Put your computer into sleep (standby) mode. To return to normal operation, press any key. Enable or disable the backlight feature of the computer screen. 40 Hardware Maintenance Manual

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Table 2. Status indicators
Indicator
Meaning
1
Caps lock
White:
Caps Lock mode is enabled. You can enter all alphabetic characters (A-Z) in
uppercase without pressing the Shift key. To enable or disable Caps Lock mode, press
the caps lock key (CapsLk).
2
Numeric lock
White:
The separate numeric keypad on the keyboard is enabled. To enable or disable
the numeric keypad, press the numeric lock key (NmLk).
3
Drive in use
White:
Data is being read from or written to the hard disk drive, or the optical disk
drive. When this indicator is on, do not put the computer into sleep (standby) mode
or turn off the computer.
Note:
Do not move the system while the white drive-in-use light is on. Sudden physical
shock could cause drive errors.
4
Active Protection
System (APS)
•
White:
Active Protection System is enabled.
•
Off:
Active Protection System is disabled.
5
Power on
•
White:
System is enabled.
•
Blinking white:
System is in sleep (standby) mode.
•
Off:
System is in hibernate mode or shut down.
6
Battery status
•
Blinking orange (500ms off/1s on):
The remaining power of the battery is less than
5% of its capacity.
•
Blinking orange (100ms off/3.2s on):
The battery is being charged with the
remaining power between 5% and 20% of its capacity.
•
Orange:
The computer is operating on battery power with the remaining power
between 5% and 20% of its capacity.
•
Blinking white
The battery is being charged with the remaining power between 20%
and 80% of its capacity.
•
Off:
The remaining power of the battery is more than 80% of its capacity, or the
computer is operating on battery power with the remaining power between 20%
and 80% of its capacity.
7
Wireless status
•
White:
Any one of the wireless devices is enabled.
•
Off:
All the wireless devices are disabled.
Fn key combinations
The following table shows the function of each combination of Fn with a function key.
Table 3. Function key combinations
Key combination
Description
Fn+Esc
Turn on or turn off the integrated camera.
Fn+F1
Put your computer into sleep (standby) mode. To return to normal operation,
press any key.
Fn+F2
Enable or disable the backlight feature of the computer screen.
40
Hardware Maintenance Manual