Viewsonic PJD7820HD Manual De Usuario

35

In order to draw the audience's full attention to the presenter, you can use   on the 

projector or Blank on the remote control to hide the screen image. Press any key on the 

projector or remote control to restore the image.

 

The word 'BLANK' appears at the lower 

right corner of the screen while the image is hidden.

You can set the blank time in the 

SYSTEM SETTING: BASIC > Blank Timer 

menu

 

to 

let the projector return the image automatically after a period of time when there is no action 

taken on the blank screen. 

With the control keys on the projector locked, you can prevent your projector settings from 

being changed accidentally (by children, for example). When the Panel Key Lock is on, no 
control keys on the projector will operate except 

POWER.

1.

Press   on the projector or Lock   on the remote control, or go to the 

SETTING: BASIC > Panel Key Lock menu

, and select On by pressing  /  on 

the projector or remote control. 

2.

A confirmation message is displayed. Select Yes to confirm.

To release panel key lock, press and hold   on the projector or Lock   on the remote 
control for 3 seconds.

You can also use the remote control to enter the SYSTEM SETTING: BASIC > Panel 
Key Lock menu and press  /  to select Off.

Press Freeze on the remote control to freeze the image. The word 'FREEZE' will be 

displayed in the upper left corner of the screen.

 

To release the function, press any key on the 

projector or remote control.

Even if an image is frozen on the screen, the pictures are running on the video or other 

device. If the connected devices have active audio output, you will still hear the audio even 

though the image is frozen on screen.

We recommend you use the High Altitude Mode when your environment is between 1500 

m–3000 m above sea level, and temperature is between 0°C–35°C.