The output can be used to control a screen masking system; its output can be set with the “Screen control” adjustment in the “Aspect” menu.

This output allows reduction in the area of a 16:9 screen, into a 4:3 format, by activating a screen masking system (refer to screen manufacturer for further information).

RS232 INTERFACE CONNECTOR

It is possible to control the projector through a personal com- puter. First, load the appropriate projector control software onto your PC, then simply connect this input to a cable from your PC’s RS232 serial port (Fig. 25).

XTRA

DVI

SYNC

RS 232

Fig. 25

7 KEYBOARD PAD

Eight push buttons, at the rear of the projector, will allow com- plete operation without the use of the remote control.

Switches off to stand-by.

Up/Down/Left/Right arrow keys

Navigate through and make adjustments to the On Screen menus.

Arrow Up/Down switch on from stand-by and recall Source Selection menu.

Menu

Activates the On Screen Display menus. Navigates Menu pages.

Auto

Selects Auto Adjust

(automatic optimisation of the displayed image).

-Focus-Esc

De-activates the On Screen Display and gives access to the lens Zoom/Focus adjustment functions.

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Sim2 Multimedia HT300 XTRA installation manual Keyboard PAD, RS232 Interface Connector