Locking Control Keys; Operating In A High Altitude Environment - BenQ DX832UST User Manual

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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 SETUP: Basic > Panel Key Lock menu, and select On by
pressing
appears.
2.
Highlight Yes and press ENTER to confirm.
To release panel key lock, use the remote control to enter the SYSTEM SETUP: Basic
>
Panel Key Lock menu and press
Keys on the remote control are still active when panel key lock is enabled.
If you 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 ambient temperature is between 0°C–30°C.
Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is
between 0°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.
Press MENU and then press
is highlighted.
2.
Press
confirmation message appears.
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.
If you use this projector under other extreme conditions excluding the above, it may
display auto shut-down symptoms, which is designed to protect your projector from over-
heating. In cases like this, you should switch to High Altitude mode to solve these
symptoms. However, this is not to state that this projector can operate under any and all
harsh or extreme conditions.
32
Operation
/
on the projector or remote control. A confirmation message
to highlight High Altitude Mode and press
/
to select Off.
/
until the SYSTEM SETUP: Advanced menu
POWER.
/
select On. A

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