Extron electronic manual Front panel components, MLC 52 front panel

•Input mode: Buttons in this mode are grouped together so that only one of them can be active at a time. When one button is pressed and activated, it becomes fully lit, while the other (inactive) button(s) are dimmed to 25% brightness. When you press one of the buttons on the front panel that are in input mode, all other buttons in input mode become inactive.

•Volume mode: This mode is available only on the standard (not VC) MLC model, and only for the two buttons that are labeled Vol > and Vol <. When an RS-232 driver that contains a volume table is part of the configuration, pressing a button in volume mode accesses the driver’s volume table. Each press of the button raises or lowers the volume of the display device by the

amount specified in the volume table. When in volume mode, the button labeled Vol > always increases the volume; Vol < lowers it.

•Power mode: The two Display buttons at the top of the front panel, labeled On and Off, are permanently fixed in power mode. This mode is similar to input mode. The two Display buttons are mutually exclusive; if you press one, the other one becomes unlit.

If you want to change the switch mode of any button, you must use the Windows- based configuration software. (See “Setting up button modes and labels” in chapter 5, “Serial Communication,” for the procedure.)

Front panel components

The diagrams below show the front panel features of the standard one-gang MLC 52 and of the two-gang MLC 52 VC.

5

4

DISPLAY

ON OFF

PC

VOL

VOL VIDEO

MLC 52

3

MLC 52 IR and RS

1

2

		DISPLAY
VOLUME	ON	OFF	1
	VCR	PC
			2
	DVD
		MLC 52

3

MLC 52 IR VC and RS VC

MLC 52 front panel

1Display power buttons — The display power buttons turn power to the projector or plasma display on and off. Because the display device can be only on or off at a given time, these buttons are programmed in an exclusive switch group. (A 2-second hold requirement can be enabled or disabled via the configuration software; see “Entering display device power settings” in chapter 5, “Serial Communication.”)

MLC 52 Series MediaLink Controllers • Operation 3-3