D.A.S. DS-112A, User Manual

Page: 14 / 20

SERIE DS-Active Power
SERIES
Manual del usuario /
User's manual
14
5. TROUBLESHOOTING
PROBLEM
CAUSE SOLUTION
No sound from the unit.
The power on LED indicator on the
right hand side on the front baffle
does not light up when the power
switch is at the on (“|”) 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. Insert the
IEC plug securely into the unit’s AC
socket.
2 – Check the cables, connectors and
AC power with a suitable mains
tester.
3 – Replace fuse on fuse holder under
AC input with a 10AF 250V fuse only.
If it blows again, take the unit to a
service centre.
No sound from the unit.
The power on LED indicator on the
right hand side on the front baffle is
lit. The SIGNAL presence LED
indicator does not light up.
1 – The
LEVEL control is down.
2 – The signal source is sending no
signal.
3 – Defective cable.
1 – Turn up the
LEVEL control.
2 – Check that the mixer or sound
source is sending signal to the unit.
3 – Check that the cable from the
sound source to the unit is connected
correctly. Replace the cable if
defective.
Full power cannot be obtained from
the unit.
The
LIMIT indicator(s) never light(s)
up.
1 – 2 – 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, or use a
preamplifier between the sound
source and the unit.
Sound is distorted.
LIMIT indicators do not light up.
1 – The mixer is distorting.
2 – The signal reaching the unit is too
hot.
1 – Turn the down the main out or
the channel gains on the mixer.
Check the signal source.
2 – Set the
LEVEL control no lower
than ten o’clock. Lower the main
mixer output level.
Sound is distorted and very loud. At
least one of the
LIMIT indicators
lights up often.
1 – The system has reached
maximum power. 1 – Turn the channel
LEVEL control
down.
2 – If the
LIMIT LED lights up, press
the
LOW CUT button.
The microphone can hardly be heard
with the
LEVEL control at maximum.
1 – The unit is not being used in
microphone mode. 1 – Set the
LEVEL control to 9 o’clock
approximately and press the
MIC/LINE button. Adjust the LEVEL
control further to get the desired
level.
When speaking into a microphone,
voices are heavy. 1 – Microphone proximity effects.
Bass gets dramatically louder when
speaking too close to the
microphone. 1 – Speak a little further away from
the microphone. Press the
LOW CUT
button and /or turn down the low
frequency equalisation if available.