Chapter Five: Troubleshooting - Alesis MultiMix6FX Reference Manual

5 Troubleshooting
If you're having problems operating the MultiMix-6FX, this
troubleshooting index will help you correct them.
Symptoms
No sound from the mixer.
Audio signal is distorted.
Audio signal carries an
unwanted hum.
Microphone level is too low.
Cause
Mixer is not plugged in or
turned on.
Channel levels are too low.
Control room level is turned
down
The appropriate signal hasn't
been assigned to the control
room out.
Cable is not plugged into
output jack.
Headphones are not plugged
into PHONE jack.
Monitor or headphone
amplifier is turned off or
down.
Bad cable.
Channel level is too high.
Channel input is too high.
AUX RET level is too high.
MAIN MIX level is too high.
Not using TRS cables.
Phantom power is not
turned on.
Solution
Plug in mixer and turn it on.
Turn up channel levels.
Turn up control room level.
In the master section of the
mixer, be sure the right switch
is selected.
Check outputs to make sure
cables are plugged in securely.
Plug headphones into
PHONE jack.
Turn amplifier on or up.
Check all cables; substitute
cables with known good ones.
Set channel levels using the
procedure on page 16.
Turn down your instrument to
a normal volume and then set
channel levels using procedure
on page 16.
Lower the level of the AUX
RET in the master section of
the mixer.
Lower the MAIN MIX level in
the master section of the
mixer.
Make sure you are using 1/4"
TRS cables.
Turn on phantom power using
the switch on the rear panel of
the mixer.
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