BenQ MP780 ST+ Projector User Manual


 
Operation
48
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.
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 adjusents made as below will have an effect on the projector speaker(s). Be sure
you have made a correct connection to the projector audio input. See "Connection" on
page 21 for how the audio input is connected.
Muting the sound
To adjust the sound level, press MUTE on the
remote control, or:
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 select On.
Adjusting the sound level
To adjust the sound level, press VOLUME+/
VOLUME- on the remote control, or:
1. Repeat steps 1-2 above.
2. Highlight VOLUME and select a desired
sound level.
Turning off the Power on/off ring tone
To turn off the ring tone:
1. Repeat steps 1-2 in Muting the sound section.