Kramer Electronics user manual and define the rear panel of the VP-725XLA

Your VP-725XLA Presentation Switcher / Scaler

#	Feature		Function
22		TALKOVER7	Routes the selected input to the output until an audio signal is
			detected on the microphone input. When this happens the selected
			input is faded out (to be faded back in when no input is detected on
			the microphone)
23	AUDIO	LINE	Press this button and adjust the audio level using the –/+ buttons
24	LEVEL1	MIC	(see section 7.3.1). The level is displayed in the LCD Display and
25	Button	OUT2	OSD
26		VIDEO	Select the Video Group operation mode4; within each group, select
		GROUP	which input (from 1 to 4) to switch to the output. The selected input
			button within each group is illuminated. If the AUDIO GROUP button
			is also illuminated, the audio follows the video
27		AUDIO	Press to select the Audio Group mode4: within each group, select
		GROUP	the audio input (from 1 to 4) from each group for switching. If the
	SELECT3		VIDEO GROUP button is also illuminated, the audio follows the
			video
28	Buttons	SCALER	Select the Scaler mode4: press an input button (1 of 21), to select
			the input to be scaled at the SCALED OUTPUTS. The selected
			input button illuminates. If the MASTER AUDIO button is also
			illuminated, the audio follows the video
29		MASTER	Press to select the Master Audio mode4: press an input button (1 of
		AUDIO	20), to select the audio input to switch to the MASTER OUT terminal
			block connector. The selected input button illuminates. If the
			SCALER button is also illuminated, the audio follows the video

Figure 2 and Table 2 define the rear panel of the VP-725XLA:

1 Only one of the group buttons can be ON, or all buttons can be OFF (pressing a button will select that button, and turn OFF the previously selected button. If the selected button is pressed, it will turn it OFF)

2 Selecting OUT when the Audio Group button illuminates, lets you select the group (scrolling through CV, YC, VGA, Component and DVI, displaying the selection on the LCD (and OSD when appropriate) using the UP and DOWN buttons

3The VIDEO GROUP and AUDIO GROUP buttons set can be pressed simultaneously or independently; the SCALER and the MASTER OUTPUT buttons set can be pressed simultaneously or independently

4When selected, this button illuminates

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