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Operation 45
1. Press on the remote control or press
MENU/EXIT to open the OSD menu and press
/ to highlight the INFORMATION menu.
2. Press to highlight FAQ-Image and
Installation or FAQ-Features and Service based
on the information you want to know.
3. Press MODE/ENTER.
4. Press / to select a problem and press
MODE/ENTER for possible solutions.
5. Press MENU/EXIT to exit the OSD.
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 Power.
1. Press / on the projector or remote control
or go to the
SYSTEM SETUP: Basic > Panel
Key Lock menu, and select On by pressing /
on the projector or remote control.
2. A confirmation message displays. Select Yes to
confirm.
To release panel key lock, press and hold / for 3
seconds on the projector or remote control.
You can also use the remote control to enter the
SYSTEM SETUP: Basic > Panel Key Lock
and press / to select Off.
• Keys on the remote control are still in use 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 ambient temperature is between 0°C–35°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/EXIT and then press / until the SYSTEM SETUP: Advanced menu
is highlighted.
2. Press to highlight High Altitude Mode and press / to select On. A
confirmation message displays.
3. Highlight Yes and press MODE/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.