Benq Projector MW817ST Manuel D’Utilisation

Operation

33

2.

Highlight Yes and press MODE/ENTER to confirm.

To release panel key lock, use the remote control to enter the 

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 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 

/

 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 

 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, press VOLUME+/VOLUME- or 

, or:

1.

Repeat steps 1-2 above.

2.

Press  

to 

highlight 

Volume and press  /  to select a desired sound level.