Varta V-AVM650D Instruction Manual page 55

V-AVM650D
Select one playing source that you want to change its volume.
•
Level
You can set the level of volume from -6 to 6.
TS CAL
When the touch operation is not sensitive or valid, you should calibrate the touch screen through "CAL Screen"
function. Calibrate the touch screen just following the screen instructions after entering the "TS CAL" mode.
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