
Operation38
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 0°C–30°C.
Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and 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.
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.
Adjusting the sound
The sound adjustments made as below will have an effect on the projector speakers. Be
sure you have made a correct connection to the projector audio input. See
"Connection"
on page 19
for how the audio input is connected.
Muting the sound
To temporarily turn off the sound,
• Using the remote control
Press MUTE to temporarily turn off the sound. While the sound is off, the screen will
display in the upper right corner of the screen.
To restore the sound, press MUTE again.
•Using the OSD menu
1. Press MENU/EXIT and then press ◄/► until the System Setup: Advanced
menu is highlighted.
2. Press ▼ to highlight Audio Settings and press MODE/ENTER.
The Audio Settings page displays.
3. Highlight Mute and press ◄/► to select On.
4. To restore the sound, repeat steps 1-3 and press ◄/► to select Off.
INPUT SOURCE AUDIO IN AUDIO OUT
Computer mini jack mini jack
HDMI 1/2 HDMI mini jack
VIDEO RCA mini jack
S-VIDEO RCA mini jack
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