Viewsonic PJD7400W Manual Do Utilizador

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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 S
SYSTEM SETUP: Advanced > A
Audio 
Settings > M
Microphone Volume menu.
Set projector volume levels in the SSYSTEM SETUP: Advanced > A
Audio Settings > 
Volume menu, or press V
Volume keys (+, -) 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: Basic > Standby Settings > Microphone menu.
If the microphone is not working, check the volume setting and cable connection.
You might get feedback noise from the microphone when you are too close to the 
speaker of the projector. Move the microphone away from the speaker of the projector. 
The greater volume you require, the greater distance you need to be away from the 
speaker to prevent the noise.
Signal
Parameter
Min
Type
Max
Microphone
Transducer Principle
Dynamic
Impedance
300
1K
ohm
Frequency response
600
16k
Hz
20