Operation Manual

Operation32
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. Go to the SYSTEM SETUP: Basic > Panel Key Lock menu, and select On by
pressing / on the projector or remote control. A confirmation message
displays.
2. Highlight Ye s and press MODE/ENTER to confirm.
To release panel key lock, use the remote control to enter the SYSTEM SETUP: Basic
> Panel Key Lock menu and press / to select Off.
• 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/EXIT and then press / until the SYSTEM SETUP: Advanced
menu is highlighted.
2. Press to highlight High Altitude Mode and press / select On. A
confirmation message displays.
3. Highlight Ye s 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.
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.
Using the test pattern
The projector is able to display the grid test
pattern. It helps you adjust the image size and
focus and check that the projected image is free
from distortion.
To display the test pattern, open the OSD menu
and go to the SYSTEM SETUP: Advanced >
Test Pattern and press / to select On.