ASKProxima c440 User Manual

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Using the audio 
To play sound from the projector, connect your source to the Audio In con-
nector on the projector.
To adjust the volume, use the buttons on the keypad or remote.
To mute the sound, press the Mute button.
Troubleshooting audio
If there is no sound, check the following:
Make sure the audio cable is connected.
Make sure mute isn’t active. 
Make sure the volume is turned up enough. Press the volume button 
on the keypad or remote.
Make sure you are connected to the corresponding audio in for your 
source. Computer 1 and 3 share a single audio input. Computer 2 has 
its own audio input. Video 12 and share a single stereo input. 
Adjust the audio source.
If playing a video, make sure the playback has not been paused.
Connecting external speakers
The projector can be attached to external speakers that have their own 
power source by plugging a speaker cable into the projector’s Audio Out 
connector. 
connect audio cable
volume
adjust volume
computer 1
computer in
audio in
computer 2
computer 3
audio in
computer 1 and 3
corresponding audio
computer 2 and
corresponding audio
external speakers
speaker
cable
audio out