Stanton RM-402 owner manual Troubleshooting, Problem / Symptom Possible Cause/ Solution

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