D.A.S. Audio Compact Series - Manual (Page 30)

24
5. TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
No sound from the unit. The SIGNAL
presence LED indicator(s) do(es) not
light up.
1 – The signal source is sending no
signal.
2 – Defective cable.
1 – Check that the mixer or sound
source is sending signal to the UNIT.
2 – Check that the cable from the
sound source to the UNIT is
connected correctly. Replace the
cable if defective.
Full power cannot be obtained. The
LIMIT LED indicator(s) never light(s)
up.
1 – The signal source does not have a
hot enough output. 1 – If using a mixer, use the balanced
output if available. Use a professional
mixer with a hotter output.
Sound is distorted. The LIMIT LED
indicator(s) is/are not on, or only light
up occasionally.
1 – The mixer or signal source is
distorting. 1 – Turn mixer channel gains down.
Check that none of your signal
sources are distorting.
Sound is distorted and very loud. One
or more
LIMIT LED indicators light
up.
1 – The system is overloaded and has
reached maximum power. 1 – Turn down the mixer’s output.
Hum or buzz when a mixer is
connected to the unit. 1 – The console probably has un-
balanced outputs. You may be using
an incorrect un-balanced to 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 – 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.
Hum or buzz when using lighting
controls in the same building. 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 – 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.
The power on LED indicator(s) do(es)
not light up when the power
connector is rotated and locked at the
ON
(LOCK) position.
1 – Bad or loose AC connection to
the UNIT or the mains outlet.
2 – Faulty AC cable.
3 – Blown Fuse.
1 – Check you connections.
2 – Check the cables, connectors and
AC power with a suitable mains
tester.
3 – Replace fuse on fuse holder with
one of the same type. If it blows
again, take the unit to a service
centre.
Manual del Usuario /
Compact / User’s Manual