PC Graphics/Stereo Audio Selection Switcher
PTN Electronics Limited
www.PTN-electronics.com
5. Function Desctription
5.1 Front panel operation
5.1.1 Press the buttons “1,2,3,4” to switch the inputs, audio/video sync-switching.
5.1.2 Press the buttons “Up”, “Down” to control the output volume up/down. (not including the
bass/treble setting)
5.1.3 Press the button “1” for 3 seconds, the WVG4A PA will enter the auto-switching mode. The LED
light of “Auto-SW” will be on. Please check the index”5.2” for the auto-switching principle.
And, pressing the button “1” for another 3 seconds, to quit the auto-switching and return to the regular
manual switching. The LED light of “Auto-SW” will be off.
Under the “auto-switching” mode, the other front panel buttons can’t be used. But, the RS232 port is still
available for controlling.
5.2 RS232 controlling
The RS232 port is used for the third-party device controlling. It is the bidirection RS232, under 9600bps
baudrate. The commands is listed from index “6”. Please check.
LED light of
“Auto-SW”
