Benq TH670s User Manual download pdf (Page 43)

Operation 43

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 19 for how the audio input is connected.

Muting the sound

To adjust the sound level, press on the remote

control, or:

1. Open the OSD menu and go to the Audio Setup

menu (which is in the Basic menu or in the

Advanced menu > Audio Setup menu).

2. Select Mute and select On.

Adjusting the sound level

To adjust the sound level, press / on the remote

control, or:

1. Repeat steps 1 above.

2. Select Volu me and select a desired sound level.

Tu r n i n g o f f t h e Power On/Off Ring Tone

To turn off the ring tone:

1. Go to the Advanced menu > Audio Setup menu.

2. Select Power On/Off Ring Tone and 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.

Adjusting the microphone’s sound level

To adjust the sound level:

1. Go to the Advanced menu > Audio Setup menu.

2. Select Microphone Volume and select a desired sound level.

Microphone sound will still function even though Mute is activated.

Locking control keys

With the control keys on the remote control and projector locked, you can prevent your

projector settings from being changed accidentally (by children, for example). When Key

Lock is On, no control keys on the remote control and projector will operate except

POWER and .

To lock the keys:

1. Open the OSD menu and go to the

Advanced menu > System Setup:

Advanced > Key Lock.

2. Press / to select On. A warning message appears. Select Yes and press

OK on the projector or remote control. The control keys lock.

To unlock the keys, press and hold on the projector or remote control for 3

seconds.

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Benq TH670s User Manual Page 43