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Press and hold the Rotary knob to lock it, press and hold it
again to unlock. Powering Off also unlocks a locked Rotary
knob.
Emergency Button
Press and hold this button to enter Emergency Operation.
When the MTH800 is powered down, press and hold this
button to power On in Emergency Operation (if configured by
your Service Provider).
See “Emergency Operation” on page 70.
Function Keys
Side Keys
The Rotary knob and Side key programming are paired:
When the Rotary knob is programmed to Volume Control or
Dual Control, the Side keys support the one-touch feature
that allows you to select or activate commonly used features
by pressing and holding a single key. By default, the upper
side key is set to “Backlight On/Off” and the lower side key is
set to “Screen Saver On”. Please check with your Service
Provider.
The required time you need to press the Side or assigned keys
to activate a one-touch function is set as default to 1 second.
This time may be set, however, by your Service Provider.
For information on the function assigned to each Side or
assigned key, please refer to your Service Provider.
Rotary Knob Programming Side Key Programming
Dual Control Programmed to a one-touch
function
List Control
: Volume Up
: Volume Down
Volume Control Programmed to a one-touch
function