Garmin GPS II Owner's Manual page 79

Screen Contrast
The GPS II has adjustable screen contrast controlled by an on-screen bar scale.
To set the screen contrast:
1. Highlight the 'contrast' field, and press ENTER.
2. Adjust the bar scale to the desired contrast, and press ENTER.
Note: The screen contrast can also be adjusted by pressing the rocker keypad
while on the satellite status page (see pg 20).
Screen Backlighting
The screen backlight timer is adjustable for 0, 15, 30, 60, 120, and 240 seconds.
The '0' setting will keep backlighting on continuously. Whenever backlighting is on,
a bulb icon will appear on the status page.
To set the backlight timer:
1. Highlight the 'light timeout' field, and press ENTER (Fig. 73b).
2. Select the desired setting, and press ENTER.
3. To turn lighting on and off, press the red power key briefly.
REFERENCE
Fig. 73b
Battery life will be significant-
ly affected by the amount of
time you have the backlight
on. To ensure the longest bat-
tery life, keep the screen back-
lighting at the default 15-sec-
ond option.
73