Troubleshooting

 

 

 

 

Problem / Symptom

Possible Cause/ Solution

 

 

 

 

Sound is distorted

Only plug turntables into this input, do not plug in CD

 

players or other Line Level sources. Turn down the

 

Phono Input

 

INPUT GAIN CONTROL

 

 

 

 

 

 

 

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

 

I hear hum.

from AC power cables and AC transformers. Make sure

 

the mixer is not mounted too close to high power ampli-

 

 

 

 

fiers or lighting equipment power supplies or ballasts.

 

 

Make sure your turntables are properly

 

 

grounded.

 

 

 

 

 

If you are using a microphone, make sure that you are

 

 

not too close to the speakers or headphones. If you hear

 

I hear

feedback on the phono input, then the turntable may be

 

mounted too close to the speakers. Also, make sure the

 

feedback

 

turntable base is placed on a surface that does not

 

 

 

 

vibrate or resonate easily when the speakers are turned

 

 

up loudly.

 

 

 

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Stanton RM.404 owner manual Hear