CCS 800 Ultro Installation and Operating Manual
en 17
7Troubleshooting
Temporary no microphone reaction, and no sound or distorted sound from unit loudspeakers
•Possible cause
•Solution
Reduce load on the trunklines by reducing the number of units, and/or the length of the trunk cables.
Acoustic Feedback
•Possible cause
Loudspeaker volume too loud.
•Solution
-Reduce gain using volume control for delegate/ chairman unit loudspeakers on CPSU.
-If available, switch on Digital Acoustic Feedback Suppression.
•Possible cause
Distance between units too small (microphone to loudspeaker of other units).
•Solution
-Increase distance between units.
-If available, switch on Digital Acoustic Feedback Suppression.
•Possible cause
Too close to microphone units, when using open headphones.
•Solution
-Increase the distance between headphone and microphone or disconnect headphones when not in use.
-If available, switch on Digital Acoustic Feedback Suppression.
Part of system not working
•Possible cause
Interrupted
•Solution
Check the
No sound via delegate/chairman loudspeakers
•Possible cause
Insertion switch in wrong position.
•Solution
Check if insertion switch at the rear of the CPSU is in position "1".
•Possible cause
Volume control position.
•Solution
Check if the volume control for delegate/chairman loudspeakers on the CPSU is not in the fully counter clockwise position.
•Possible cause
Microphone active or headphone connected.
Note
Units with active microphone or connected headphone(s) have their loudspeakers switched off.
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