Extron electronic IR 452 user manual Setup and Operation, cont’d

Setup and Operation, cont’d

When the DVCM 50 TV/VCR button is programmed as labeled, or the command is programmed to an MLC 52 memory block, pressing the IR 452 TV/VCR button switches the VCR between TV and VCR modes.

4Channel button — Pressing the up- or down-arrow on this rocker button sends an IR signal to either of the following:

•The MLC 52 to activate the memory block to which the channel switch command has been programmed

•The DVCM 50 to activate the buttons labeled Tuner ￿ and ￿.

The MLC 52 or DVCM 50 must be in VCR mode. If they are in DVD mode, this button has no effect. See Selecting DVD or VCR mode, later in this chapter.

When the DVCM 50 Tuner Up and Down buttons are programmed as labeled, or the command is programmed to an MLC 52 memory block, the IR 452 Channel Up and Down arrow button changes the TV channel to the next higher or

PROJECTOR

ON	OFF
VOL	PC
VOL	VIDEO

MLC 52

POWER	TV/VCR
ON

CHANNEL

FRONT PANEL

VOL PC

VOLVIDEO

lower channel number.

5Front Panel buttons — Pressing these buttons (located in the Front Panel section of the IR 452) sends IR signals to the MLC 52 or to the MLC 104 with the DVCM 50, to activate the buttons on the MLC's front panel.

The following table shows the functions performed on the MLC 52 and the MLC 104 (with the DVCM 50) when the

IR 452 Front Panel buttons are pressed (if the MLC buttons are programmed as pre-labeled).

IR 452 Button		MLC 52	MLC 104 with
Label			DVCM 50
Vol ￿		Increase volume on display	Select input 1.
		device.
PC		Select RGB input.	Select input 2.
Vol ￿		Decrease volume on display	Select input 3.
		device.
Video		Select composite video or	Select input 4.
		S-video input.
	On the MLC 104, the input selection buttons are
	numbered 1 through 4, from top to bottom.

Equivalent buttons on the MLC 52 and the IR 452 (top half)

6DVD control buttons — When the DVCM or MLC 52 is in DVD mode, pressing each of these buttons sends an IR signal to the DVCM 50 to activate its button with the same label, or to the MLC 52 to activate its memory block programmed with the button's command.

7VCR control buttons — When the DVCM or MLC52 is in VCR mode, pressing each of these buttons sends an IR signal to the DVCM 50 to activate its button with the same label, or to the MLC 52 to activate its memory block that has been programmed with the button's command.

8DVD and VCR (mode selection) buttons — Pressing either of these buttons sends an IR signal to the DVCM 50 to activate the equivalent mode selection button, or to the MLC 52 to activate its programmed memory block. This causes the DVCM or MLC 52 to switch to the selected mode.

For example, if you press the DVD button on the IR 452, the DVCM or MLC 52 switches to DVD mode. (If it is already in DVD mode, pressing the IR 452's DVD button has no effect.)

The DVD and VCR buttons are unique in that pressing them always selects the mode with which they are labeled.

2-8 IR 452 • Setup and Operation IR 452 • Setup and Operation 2-9