SKP Pro Audio SK-6P El Manual Del Propietario página 15

SK-6P
Noise or hiss heard at output
Hum or Buzz that increases or
decreases when the mixer level
controls are moved.
Hum or Buzz
The inputs from INPUT 2 and
INPUT 3 aren't coming out of
the OUT connector
The speaker connected to the OUT
connector goes up in volume when
I adjust the INPUT 1 control on the
first speaker.
Speakers feed back and howl when
the microphone volume is turned up
Noisy source device
Improper A/C ground or faulty
equipment connected to mixer
input
Faulty cable between source
equipment and mixer
Improper A/C grounding, ground
loops
Excessively long unbalanced cable
run
Improper system gain structure
MIX/LOOP SWITCH set improperly
MIXED/LOOP SWITCH set improperly
Microphones are pointed into the
speakers
Equalizer settings art incorrect
Excessive gain
13
TROUBLESHOOTING
Disconnect the devices that are connected
to your speaker one at a time. If the noise
goes away, the problem is with the source
or the connecting cable.
Disconnect or mute channels one at a time
to isolate the problem. Refer to the owner's
manual of the faulty equipment for trouble-
shooting help.
Substitute a known-good cable for the
suspected faulty cable.
"Telescope" the audio ground by suing
an XLR/F to XLR/M adapter on one end.
Re-route audio cables away from AC
power and lighting cables.
Use the balanced outputs (if available)
of your mixer or source equipment to
drive your speakers.
Use a "DI" (direct injection) box to con-
vert your unbalanced equipment output
to a balanced output.
Reduce the INPUT 1,2 and 3 controls and
increase the output level of your source
devices.
Set the MIX/LOOP SWITCH to the MIX
OUT position (depressed). See the
CAUTION in the "Switches" section of this
manual.
Disengage the MIX OUT switch. See the
CAUTION in the down in"Switches"section
of this manual.
Move the speakers so they do not point
the microphone's pickup pattern.
Locate the feedback frequency and reduce
it using the mixer EQ or an external
equalizer.
Reduce the gain at the mixer and move the
microphone closer to the sound source.