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Operation 39
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–35°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 speaker. Be sure
you have made a correct connection to the projector audio input. See "Connection" on page
17 for how the audio input is connected.
Muting the sound
To temporarily turn off the sound:
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.
Adjusting the sound level
To adjust the sound level:
1. Repeat steps 1-2 above.
2. Press to highlight Volume and press / to select a desired sound level.
Turning off the Power on/off ring tone
To turn off the ring tone:
1. Repeat steps 1-2 above.
2. Press to highlight Power on/off ring tone and press / to select Off.
The only way to change Power on/off ring tone is setting On or Off here. Setting the sound mute or
changing the sound level will not affect the Power on/off ring tone.
We recommend you use the High
Altitude Mode by selecting it whenever
your environment is higher than 1500
m.
Do you want to turn the High Altitude
Mode on?
Yes
No
WARNING