Stanton RM-402 - Manual (Page 11)

Troubleshooting
Problem / Symptom Possible Cause/ Solution
No Sound
Is the power on? Check the power switch.Make
sure the channels are assigned properly to the
crossfaders. Make sure INPUT GAIN, is turned
up and output level control is turned up.
Depending on the input, check the rear panel
selector switches. Check the top panel channel
selector switches.
No Sound- Master
Output (Booth and
Zone are OK)
Make sure that MASTER TRIM on the rear
panel is turned up.
No Sound
Headphones
Do the headphones work with the CUE pan in
the PROGRAM position but not PFL? If so,
make sure that the channel PFL switches are
engaged. Check the CUE LEVEL control.
Signal level is low
even with the
faders and input
level controls
turned up.
Check to make sure the talkback switch is NOT
engaged on the microphone input. Check the
EQ sliders.
Mixer sounds noisy
Check to make sure that the microphone levels
are turned all of the way down if a microphone
is not being used.
Microphone doesn’t
work
Is the Mic gain turned up? Does the microphone
require phantom power? This mixer does not
provide microphone phantom power.
Sound is distorted-
Line or CD input
In general, turn down the INPUT GAIN
CONTROL. The input signal may be too loud for
the input gain control setting that you were using.
Is the EQ on? Turn off the EQ. If the distortion
goes away, then you need to turn down the
INPUT GAIN CONTROL.