JBL G2 Bedienungsanleitung PDF herunterladen (Seite 12)

Signal sounds distorted even Mixer or other source is overdriven Review the Owner’s Manual

at moderate volumes, PEAK for your mixer and adjust

light is not lit. controls as needed

• Input sensitivity (gain)

• Channel faders

• Master faders

Hum or Buzz that increases Improper A/C ground or faulty Disconnect or mute

or decreases when the mixer equipment connected to mixer channels one at a time to

level controls are moved. input isolate the problem. Refer

to the owner’s manual of the

faulty equipment for

troubleshooting help.

Faulty cable between source Substitute a known-good

equipment and mixer cable for the suspected

faulty cable.

Hum or Buzz Improper A/C grounding, ground • Connect all speakers to a

loops common power circuit.

• “Telescope” the audio

ground by using an XLR/F

to XLR/M adapter with

Pin1 disconnected on one

end.

• Re-route audio cables

away from AC power and

lighting cables.

Excessively long unbalanced cable • Use the balanced outputs

run (if available) of your mixer

or source equipment to

drive your EON speakers.

• Use a “DI” (direct injection)

box to convert your unbal-

anced equipment output

to a balanced output.

Improper system gain structure Reduce the INPUT 1, LINE

2, and LINE 3 controls and

increase the output level of

your source devices.

Speakers feedback and howl Microphones are pointed into the Move the speakers so they

when the microphone volume speakers do not point into the micro-

is turned up phone’s pick-up pattern.

Equalizer settings are incorrect Locate the feedback fre

quency and reduce it using

the mixer EQ or an external

equalizer.

Excessive gain Reduce the gain at the

mixer and move the micro-

phone closer to the sound

source.

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