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5 Troubleshooting
Problem
No sound:
Distortion:
22
Possible Cause
1. Power to mixer
and/or amplifier is
off.
2. Channel or master
fader on mixer, or
volume control on
amplifier is at zero.
3. Microphone is not
connected to mix -
er or amplifier.
4. Cable connectors
are seated loosely.
5. Cable is defective.
6. No supply voltage.
1. Gain control on
the mixer set too
high.
2. Mixer input sensi-
tivity too high.
Remedy
1. Switch power to
mixer or amplifier
on.
2. Set channel or
master fader on
mixer or volume
control on ampli-
fier to desired
lev el.
3. Connect micro-
phone to mixer or
amplifier.
4. Check cable
connectors for se-
cure seat.
5. Check cable and re-
place if damaged.
6. Switch phantom
power on.
Phantom power
supply: connect to
power outlet or in-
sert battery
(batteries).
Check cable and re-
place if necessary.
1. Turn gain control
down CCW.
2. Connect a 10-dB
preattenuation
pad between
microphone cable
and input.
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