Garmin GPS III Plus - Manual (Page 87)

System Settings
Backlight lets you keep the screen/keypad backlighting on continuously (‘always on’)
when selected, or enable the automatic shutoff to preserve battery life. Automatic shutoff
times from 15 seconds to 4 minutes (since last key press) are available.
To set the backlight timeout:
1. Highlight the ‘Backlight’ field and press ENTER.
2. To keep backlighting on continuously, select ‘Always On’ and press ENTER, OR
3. To set a timeout duration, select the desired time period and press ENTER.
Battery is used to designate the type of batteries currently being used to power your GPS
III+: Alkaline, Lithium or NiCad. This setting ensures accurate readings from the battery
gauge on the Satellite Status Page (see page 27).
Power Saver is suitable for most applications and offers position updates which adapt to
your needs while extending battery life. The GPS III+ will operate up to 36 hours when
using Power Saver mode.
To select power saver mode:
1. Highlight the ‘Power Saver’ field and press ENTER.
2. Use the UP/DOWN keys on the ROCKER KEYPAD to select ‘ON’ (or ‘OFF’) and press ENTER.
Display allows you set the display orientation to horizontal (‘Landscape’) or vertical
(‘Portrait’).
NOTE: Display orientation can also be changed by pressing and holding the PAGE key.
Set the ‘Backlight’ field to
‘Always On’ to prevent the
backlighting from timing out
and turning off automatically.
Display orientation is adjust-
able by pressing and holding
the PAGE key, or from the
‘System’ settings.
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REFERENCE
Setup Menu: System
H