Hiding The Image; Locking Control Keys; Operating In A High Altitude Environment - ViewSonic PX706HD User Manual

Hiding the image

In order to draw the audience's full attention to the presenter, you can press Blank on the
projector or 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 BASIC
the image automatically after a period of time when there is no action taken on the blank
screen.
Once Blank is pressed, the projector enters SuperEco mode automatically.
CAUTION
Do not block the projection lens from projecting as this could cause the blocking object to
become heated and deformed or even cause a fire.

Locking control keys

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
1. Go to the SYSTEM
2. Press Enter and press
3. A confirmation message is displayed. Select Yes to confirm.
To release panel key lock, press and hold
You can also use the remote control to enter the SYSTEM
select Off.
Keys on the remote control are still functional when panel key lock is enabled.
If you press Power to turn off the projector without disabling panel key lock, the projector
will still be in locked status the next time it is turned on.

Operating in a high altitude environment

We recommend you use the High Altitude Mode when your environment is between 1500
m–3000 m above sea level, and temperature is between 5°C–25°C.
CAUTION
Do not use the High Altitude Mode if your altitude is between 0 m and 1499 m and temperature
is between 5°C and 35°C. The projector will be over cooled, if you turn the mode on under
such a condition.
To activate the High Altitude Mode:
1. Open the OSD menu and go to the SYSTEM > High
Altitude Mode menu.
2. Press Enter and press
confirmation message is displayed.
3. Highlight Yes and press Enter.
Operation under "High Altitude Mode" may cause a higher
decibel operating noise level because of increased fan speed
necessary to improve overall system cooling and
performance.
>
Blank Timer menu to let the projector return
> menu
Panel Key Lock
.
/ to select On
on the projector for 3 seconds.
/ to select On. A
30
Power.
>
Panel Key Lock menu and