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PROBLEM CHART
PROBLEM:
No power.
No sound.
Noise.
While you are changing the
crossfader assignment, the
master-output cuts off.
The desired channels
cannot be synchronized.
REPLACING THE CROSSFADER
Instructions for replacing the crossfader:
• Remove the fader knob.
• Remove the two outer screws on the fader-panel.
• Take the fader out and unplug the connection-cable.
• Connect the new fader and fix it in the device.
CLEANING AND MAINTENANCE
The operator has to make sure that safety-relating and machine-technical installations are inspected by an
expert after every four years in the course of an acceptance test.
The operator has to make sure that safety-relating and machine-technical installations are inspected by a
skilled person once a year.
The following points have to be considered during the inspection:
1) All screws used for installing the devices or parts of the device have to be tighly connected and must not
be corroded.
2) There must not be any deformations on housings, fixations and installation spots (ceiling, suspension,
trussing).
3) The electric power supply cables must not show any damages, material fatigue (e.g. porous cables) or
sediments. Further instructions depending on the installation spot and usage have to be adhered by a
skilled installer and any safety problems have to be removed.
CAUSE:
• The power unit is not connected.
• The PHONO/LINE/MIC-switch of the
respective channel is in the wrong
position.
• The power-cord of the respective
device is not connected properly or
not connected at all.
• The connection-socket or the plug is
dirty.
• The input-signal is too strong.
The assignment of both Assign button
overlaps.
The wrong channels have been
selected with the Assign button.
27/28
REMEDY:
• Check the connection cable of the
power unit and any extension-cables.
• Put the PHONO/LINE/MIC-switch
into the correct position.
• Check the power-cord and if the
plugs are tightly connected with the
sockets.
• Clean the socket and/or the plug.
• Reduce the input-signal via the Gain-
control.
Switch the crossfader off with one of
the Assign-button before you change
the assignment.
Select the correct channels.
10006755_V_1_0.DOC
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