BenQ MW721 DLP Network Projector MX720, MW721 User Manual - Page 34
Adjusting the sound, Using the test pattern, Power On/Off Ring Tone
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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(s). Be sure you have made a correct connection to the projector audio input. See "Connection" on page 16 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 appears. 3. Highlight Mute and press / to select On. If available, you can also press Mute on the remote control to toggle projector audio between on and off. Adjusting the sound level To adjust the sound level, press Volume +/- or 1. Repeat steps 1-2 above. 2. Press to highlight Volume and press / / , or: to select a desired sound level. Adjusting the microphone volume To adjust the microphone sound level: 1. Repeat steps 1-2 above. 2. Press to highlight Microphone 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. 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. 34 Operation