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Additional Information
MHC-M20.US.4-736-073-12(1)
37
US
There is no sound.
••
Adjust the volume.
••
Check the speaker connections
(page 14).
••
Check the connection of the
optional equipment, if any
(page14).
••
Turn on the connected equipment.
••
Unplug the AC power cord (mains
lead), then plug in the AC power
cord (mains lead) again and turn
on the system.
There is no microphone sound.
••
Adjust the microphone volume
level.
••
Make sure the microphone is
connected to the MIC jack on the
unit correctly.
••
Make sure the microphone is
turned on.
Microphone adaptor (not
supplied) cannot be removed.
••
Use a tool such as plier to
disconnect the microphone
adaptor from MIC jack on the unit.
There is severe hum or noise.
••
Move the system away from
sources of noise.
••
Connect the system to a different
wall outlet.
••
Install a noise filter (not supplied)
to the AC power cord (mains lead).
••
Turn off surrounding electrical
equipment.
••
The noise generated by the
cooling fans of the system may be
heard when the system is turned
on. This is not a malfunction.
••
Move the unit away from the neon
signs or fluorescent light.
The remote control does not
function.
••
Remove the obstacles between
the remote control and the unit.
••
Move the remote control closer to
the unit.
••
Point the remote control at the
unit’s sensor.
••
Replace the batteries (R03/size
AAA).
••
Move the unit away from the
fluorescent light.
There is acoustic feedback.
••
Reduce the volume.
••
Move the microphone away from
the system or change the direction
of the microphone.
“CHILD LOCK” appears when you
press any button on the unit.
••
Set the Child Lock function to off
(page 35).
A clicking sound is heard when
system is turned on.
••
This is the operating sound and it
occurs when the system is turned
on or off, for example. This is not a
malfunction.
The sound loses stereo effect
during playback.
••
Turn off the Vocal Fader
(page34).
••
Make sure the system is
connected properly.
••
Check the speaker connections
(page 14).
Speakers
Sound comes from only one
channel or the left and right
volume is unbalanced.
••
Place the speakers as
symmetrically as possible.
••
Check that the speakers are
connected securely and correctly.
••
The source being played back is
monaural.
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