Illumination of panel key
Remote control receiving window
Indicator
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TV/VIDEO
MENU
CH+
CH-
VOL+
VOL-
POWER
5
1
Menu keystroke of signal source
Menu keystroke of display screen
Increase channel number/Menu item selection
Decrease channel number/Menu item selection
Increase volume/increase item
value/open sub-menu
Decrease volume/Decrease item
value/open sub-menu
Standby power switch