8
Up: Scroll up the menu bar, hot key to adjust channel up
Down: Scroll down the menu bar, hot key to adjust channel down
MENU Menu: Activate OSD menu
Right : Increase setting the menu bar, hot key to adjust volume up
Left : Decrease setting the menu bar, hot key to adjust volume down
SOU/AOU Source: Change input source / Auto adjust
Power: Turn on or off the main board
Function Keys Instruction for LCD