Toshiba satellite A20 series Maintenance Manual page 185

3 Tests and Diagnostics
Display Auto Off
Use this option to disable or set the duration of the display automatic power
off function. This function causes the computer to turn the LCD panel's
illumination off if you make no entry for the set period of time.
Disabled
xx Min.
HDD Auto Off
Use this option to set the duration of the HDD automatic power off function.
xx Min.
LCD Brightness
Use this option to set the level of LCD brightness.
Super-Bright
Bright
Semi-Bright
Cooling Method
If the CPU becomes too hot, the fan turns on or the processing speed is
lowered automatically. When the CPU temperature falls to a normal range, the
fan turns off.
Maximum performance
Performance
Battery optimized
3-74
Disables display automatic power off.
Automatically turns off power to the LCD panel's
illumination if the panel is not used for the duration set.
The duration xx can be set to 1, 3, 5, 10, 15, 20 or 30
minutes.
Automatically turns off power to the hard disk drive
if it is not used for the duration set. The duration xx
can be set to 1, 3, 5, 10, 15, 20 or 30 minutes.
Full brightness for maximum visibility.
Full brightness for high visibility.
Less than full brightness for saving power.
Turns on fan first, then if necessary lowers CPU
processing speed.
Uses a combination of fan and lowering the
CPU processing speed.
Lowers the CPU processing speed first, then if
necessary turns on the fan.
Satellite A20 Maintenance Manual (960-444)
3.26 SETUP