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Troubleshooting – JBL EON10 User Manual

Page 14

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14

Troubleshooting

Symptom

Likely Cause

What to do

No sound. Speaker comes on.

Signal source (mixer, instrument,

Check VU meters on the source

SIGNAL LED does not

etc.) is not sending.

mixer.

illuminate.

Verify that the tape or CD is playing.
Use headphones to verify that the
instrument is actually sending an
audio signal.

Faulty cables and connections.

Disconnect and re-seat signal
cables.
Replace suspected cable with a
known-good cable.

No sound with microphone

Microphone requires phantom

The EON10 G2 does not supply

connected directly to the MIC / power.

phantom power. Switch to a

LINE 1 input. SIGNAL LED

dynamic microphone, use a

does not illuminate.

battery in the microphone (if
possible), use an external
phantom power supply.

Signal sounds distorted and very

Excessive input signal,

Reduce the output level of the

loud, PEAK light is lit most of

exceeding the capabilities

source.

the time.

of the speakers.

Turn down the LEVEL controls
on the speaker.
Use additional EON speakers.

Signal sounds distorted even at Mixer or other source is

Review the Owner’s Manual for

moderate volumes, PEAK light is overdriven.

your mixer and adjust controls as

not lit.

needed.
• Input sensitivity (gain)
• Channel faders
• Master faders
Once this is done, review the
instructions in the Quick Start
section of this guide.

Lots of hiss in the sound, the

Improper gain structure or noisy

Make sure that the MIC/LINE

mixer controls are at very low

source device.

switch is in the LINE

settings.

(disengaged) position.
Reduce the LEVEL settings at the
speaker.
Review the Owner’s Manual for
your mixer and adjust controls as
needed.

Noise or hiss heard at output.

Noisy source device.

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.