Benq MX712-UST MX880UST Manuel D’Utilisation

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Connection
18
Playing sound through the projector
You can make use of the projector (mixed mono) speaker in your presentations, and also 
connect separate amplified speakers to the AUDIO OUT socket of the projector.
If you have a separate sound system, you will most likely want to connect the audio output 
of your Video source device to that sound system, instead of to the mono audio projector.
You can also use a microphone to output the sound through the projector speaker.
Once connected, the audio can be controlled by the projector On-Screen Display (OSD) 
menus. See 
 for details.
The table below describes the connection methods for different devices, and where the 
sound is from.
About the microphone input
•  If you wish to use a microphone, connect a 3.5 mini jack cable microphone to the 
projector.
•  You can use a wireless microphone as long as a wireless module is attached to the 
projector’s microphone input jack and it works well with the associated devices. To 
ensure a quality use of the wireless microphone, it is recommended that your 
microphone conforms to the specifications listed in the table below. 
•  There are two ways to adjust microphone volumes.
Directly set microphone volume levels in the SYSTEM SETUP: Advanced > 
Audio Settings > Microphone Volume menu or press MIC/VOL keys (+/-) on 
the remote control.
Set projector volume levels in the SYSTEM SETUP: Advanced > Audio Settings 
> Volume menu, or press VOLUME+/VOLUME- on the remote control. (The 
projector volume setting will affect the microphone volume.)
•  To make the microphone input available when the projector is in standby mode, turn on 
the SYSTEM SETUP: Advanced > Standby Settings > Microphone menu.
•  If the microphone is not working, check the volume setting and cable connection.
Device
PC/Component Video
Video/S-Video
Microphone
Audio input port
AUDIO IN 1
AUDIO IN 2 (L/R)
MIC
The projector can 
play the sound 
from...
AUDIO IN 1/MIC
AUDIO IN 2 (L/R)/MIC
MIC
AUDIO IN 1/MIC
AUDIO IN 2 (L/R)/
MIC
Audio output port
AUDIO OUT
AUDIO OUT
AUDIO OUT
The selected input signal determines which sound will be played by the projector speaker, 
and which sound will be output from the projector when AUDIO OUT is connected. If you 
select a PC signal, the projector can play the sound received from AUDIO IN 1/MIC.
Signal
Parameter
Min Type
Max
Microphone
Transducer Principle
Dynamic
Impedance
300
1K
ohm
Frequency response
600
16k
Hz