JBL EON15 - Manual (Page 14)

Lots of hiss in the sound, the Improper grain structure • Make sure that the
mixer controls are at very low MIC/LINE switch is in the
settings. LINE (disengaged) position.
• Reduce the level settings
at speaker.
Review the Owner’s Manual for
your mixer and adjust controls
as needed.
• Input sensitivity (gain)
• Channel faders
• Master faders
TROUBLESHOOTING
Symptom Likely Cause What to do
No sound Speaker not connected to active Verify that speaker is connected
AC power and that the circuit is on
Power not switched on Switch on power and verify that
power LED is on
No sound, speaker is connected Speaker power cable is faulty or • Re-seat the power cable at
to working AC power but won’t improperly connected. both ends.
come on. • Substitute a known-good
power cable
Blown fuse • There are no user-serviceable
fuses in the EON15 G2.
Take your speaker to a
competent servicer.
No sound. Speaker comes on. Signal source (mixer, instrument, • Check VU meters on the
etc.) is not sending. source mixer
• 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 EON15 G2 does not supply
connected directly to the MIC/ power phantom power. Switch to a
LINE 1 input. dynamic microphone, use a
battery in the microphone (if
possible), use an external
phantom power supply.
Signal sounds distorted and very Excessive input signal, trying to • Reduce the output level of
loud, PEAK light is lit most of exceed the capabilities of the the source.
the time. 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 overdriven your mixer and adjust controls
is not lit. as needed.
• Input sensitivity (gain)
• Channel faders
• Master faders
Once this is done, review the
instructions in the Quick Start
section of this guide.
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