Denso BHT-100BW-CE User Manual page 81

Backlight menu
Specifying "0" to the backlight ON-duration (time), the backlight does not come on. Specifying "255"
to it, the backlight will be kept ON.
CPU performance menu
Setting the higher clock speed consumes much power, decreasing the battery operating time.
Choosing "5:Back Light" on the Device menu calls up the screen
shown at left.
You can make the following settings:
- Enable/disable the backlight (default: disable)
- Backlight ON-duration (time): 0 to 255 seconds (default: 3 seconds)
- Device to be backlit
None: No device
Lcd: LCD only
Keyboard: Keyboard only
Lcd/Keyboard: Both LCD and keyboard, backlit simultaneously
(default)
Choosing "6:CPU Performance" on the Device menu calls up the
screen shown at left.
Normal: Operates the CPU at typical clock speed (default).
Fast: Operates the CPU at higher clock speed.
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