Troubleshooting - Stanton SMX.311 User Manual

4.

Troubleshooting

Problem / Symptom
no Sound.
no Sound-Headphones.
Mixer sounds noisy.
Microphone doesn't work.
Sound is distorted-line input.
Sound is distorted-Phono input.
i hear hum.
i hear feedback.
Possible Cause / Solution
Is the power ON? Based on your connections, check that you
have properly set the Channel Input (Phone-Line). Make sure
that the Input Gain, Channel Fader, and Master output are
turned up. Make sure the channels are properly assigned to the
Crossfader.
Check the Cue Level, Cue Mix, and Cue button settings.
If a microphone is not being used, move the Mic switch to the
OFF position and turn all its related controls down.
Is the Mic Level turned up? Does the microphone require
phantom power? This mixer does not provide microphone
phantom power.
Turn down the Input Gain Control. Check EQ settings.
Only plug turntables into this input, do not plug in CD players or
other Line Level sources. Turn down the Input Gain Control and
check EQ settings.
Make sure you are using good shielded audio cables. Some less
expensive audio cables can be susceptible to hum and
interference. Keep your audio cables away from AC power cables
and AC transformers. Make sure the mixer is not mounted too
close to high power amplifiers or lighting equipment power
supplies or ballasts. Make sure your turntables are properly
grounded to the back of the mixer if they include a grounding
wire.
If you are using a microphone, make sure that you are not too
close to the speakers or headphones. If you hear feedback on
the Phono Input, then the turntable may be mounted to close
to the speakers and/or subwoofer. Also, make sure the turntable
base is placed on a surface that does not vibrate or resonate
easily when the speakers are turned up loudly.
7
Troubleshooting