TDS Ranger Getting Started Manual page 13

Power key features
The Power key turns the unit on and off and performs a number of
additional functions.
Turn backlight on/off: To toggle the backlight on or off, press Fn
and then the Power key. Once toggled off, the backlight will stay
off until it is toggled back on. Screen taps and key presses will not
cause it to turn on.
Power menu: Hold down the Power key for about 3 seconds to
display a countdown. Continuing to press the Power key will cause
a reset when the countdown reaches zero. If you release the Power
key while the countdown is proceeding, you access the following
menu. Tap an option or OK to exit.
Shutdown: Closes all running applications and puts the device in its lowest power mode.
No file system data is lost, only open or unsaved files will be lost. All registry settings,
control panel, personal information and databases are preserved.
Restore Factory Default State
WARNING: All application software, licenses, settings and data
will be lost if you perform this function.
Hold down the Power key to display a countdown. Continue to hold
down the Power key until it counts down to zero and beeps three
times. Then immediately hold down the Fn, F, and D keys
simultaneously. After a few seconds, a screen will come up warning
that if you continue, this operation will clear the persistent store
including all user data, applications and settings. Follow the
instructions on the screen ONLY if you want to completely clear
your unit.
Align Touch Screen: A series of targets is
displayed. Use a stylus to tap each target to
align the touchscreen.
Reset: Restarts a running program that has
become unresponsive. No file system data is
lost, only open or unsaved files will be lost. All
registry settings, control panel, personal
information and databases are preserved.
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