20
Manual del Usuario /
event series
/
User’s Manual
Troubleshooting
PROBLEM
N o s o u n d f r o m t h e u n i t . T h e
DISPLAY does not light up.
Full power cannot be obtained. The
LIMIT message is never displayed.
Sound is distorted. The L I M I T
message is not on, or only lights up
occasionally but INPUT Clip is on.
Sound is distorted and very loud and
LIMIT message is shown.
Hum or buzz when a mixer is
connected to the unit.
Hum or buzz when using lighting
controls in the same building.
The DISPLAY does not light up
when the mains connector is
connected and the unit is switched to
ON.
CAUSE
1 - No power to the unit.
2 - Defective cable / connector.
3 - Defective amplifier.
1 - The signal source does not have a
hot enough output.
2 - There could be some
equalisations, filters or
compressors applied in other
devices (console, processor).
The mixer or signal source is
distorting or it has excessive level.
The system is overloaded and has
reached maximum power.
1.– The console probably has un-
balanced outputs. You may be using
a n i n c o r r e c t u n - b a l a n c e d t o
balanced cable.
2.– The mixer and the powered
speaker are not plugged into the
same mains outlet.
3.– The audio signal cable is too long
or too close to an AC cable
1.– The audio signal cable is too long
or too close to the lighting cable.
2.– On a sound system with three-
phase AC, the lighting equipment
and the UNIT are connected to the
same phase.
1.– Bad or loose AC connection to
the UNIT or the mains outlet.
2 – Faulty AC cable.
3 – Blown Fuse.
4 - The mains voltage is out of range.
SOLUTION
1 - Check all the connections and
the power distro.
2 - Check that the cable and
connector are working properly.
3 - Contact with the dealer/tech
support in the area.
1 - If you use a mixer, be sure to use
the balanced output if you have it.
Use a professional mixer or signal
source with more output level.
2 - Double check the signal path and
erase all Eqs, compressors applied.
Turn mixer channel gains down.
Check that none of your signal
sources are distorting.
Turn down the mixer's output.
1.– Read the appendix of this manual
to make a correct un-balanced to
balanced cable.
2.– Connect the mixer and the unit to
the same mains outlet.
3.– Use a cable that is as short as
possible and/or move the audio
signal cable away from mains
cables.
1.– Move the audio signal cable
away from lighting cables. Try to find
out at what point the noise is leaking
into the system.
2.– Connect the sound system to a
different phase than the lights. You
may need the help of an electrician.
1.– Check your connections.
2.– Check the cables, connectors
and AC power with a suitable mains
tester.
3.- Replace the blown fuse for
another of the same type and size.
4.- If the multimeter determines that
the mains voltage is out the range,
you may need the assistance of an
electrician to find an appropriate
solution.
