INPUT Selector Buttons (1 to 6)
Press one of the six inputs to switch it to Output 2
Press to turn off output 2 video and audio
Press to inactivate/activate all front panel buttons to prevent tampering
Press to activate the test pattern generator. When the generator is active, press one of
the input buttons to select a test pattern
Press to select the analog audio of output 2
Press to increase output 2 volume
Press to decrease output 2 volume
Press to toggle muting of output 2 audio
Press to swap output 1 and output 2