Troubleshooting - JBL EON10 G2 User Manual

Symptom
No sound. Speaker comes on.
SIGNAL LED does not
illuminate.
No sound with microphone
connected directly to the MIC /
LINE 1 input. SIGNAL LED
does not illuminate.
Signal sounds distorted and very Excessive input signal,
loud, PEAK light is lit most of
the time.
Signal sounds distorted even at Mixer or other source is
moderate volumes, PEAK light is overdriven.
not lit.
Lots of hiss in the sound, the
mixer controls are at very low
settings.
Noise or hiss heard at output.
14

Troubleshooting

Likely Cause
Signal source (mixer, instrument,
etc.) is not sending.
Faulty cables and connections.
Microphone requires phantom
power.
exceeding the capabilities
of the speakers.
Improper gain structure or noisy
source device.
Noisy source device.
What to do
Check VU meters on the source
mixer.
Verify that the tape or CD is playing.
Use headphones to verify that the
instrument is actually sending an
audio signal.
Disconnect and re-seat signal
cables.
Replace suspected cable with a
known-good cable.
The EON10 G2 does not supply
phantom power. Switch to a
dynamic microphone, use a
battery in the microphone (if
possible), use an external
phantom power supply.
Reduce the output level of the
source.
Turn down the LEVEL controls
on the speaker.
Use additional EON speakers.
Review the Owner's Manual for
your mixer and adjust controls as
needed.
• Input sensitivity (gain)
• Channel faders
• Master faders
Once this is done, review the
instructions in the Quick Start
section of this guide.
Make sure that the MIC/LINE
switch is in the LINE
(disengaged) position.
Reduce the LEVEL settings at the
speaker.
Review the Owner's Manual for
your mixer and adjust controls as
needed.
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.