Kramer Electronics VP-724xl, VP-723xl, VP-720xl, VP-719xl Locking and Unlocking the Front Panel

Presentation Switcher / Scaler Buttons

7.3 Locking and Unlocking the Front Panel

You can lock the front panel1 to safeguard the settings on the VP-724xl. To lock the front panel:

￿￿Press the PANEL LOCK button or the MENU key on the infra-red remote control transmitter (see Figure 16) for a few seconds, until the “Key Lock On” OSD status appears superimposed over the top right corner of the screen for a few seconds2, and all button LEDs turn off

Pressing a button when the panel is locked, displays the “Key Lock On” message superimposed over the top right corner of the screen and the PANEL LOCK button blinks for a few seconds.

To unlock the front panel (releasing the protection mechanism):

￿￿Press and hold the PANEL LOCK button or the MENU key on the infra-red remote control transmitter (see Figure 16) for a few seconds, until the “Key Lock Off” OSD status appears superimposed over the top right corner of the screen for a few seconds2

7.4The Infra-Red Remote Control Transmitter

You can control the Presentation Switcher / Scaler remotely, from the infra-red remote control transmitter, which:

￿￿Is a hand held instrument with a convenient keypad that receives its power from 2 AAA size 1.5V DC batteries

￿￿Has a range of up to 15 meters

￿￿Delivers instantaneous results

Figure 16 and Table 5 define3 the infra-red Remote Control Transmitter:

1 However, operation via RS-232 serial commands is still available

2 By default, 20 seconds. But you can reset the timeout (from 3 to 60 seconds), see section 8￿ .5.6

3 The illustration in Figure 16 shows an enlarged view of 3 separate parts of the infra-red remote control transmitter

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