What To Do To Avoid Feedback; Trouble Shooting; Handheld And Beltpack Transmitter - Beyerdynamic Opus 100 Mk II Notice D'utilisation

4.4

What to Do to avoid Feedback

Feedback is caused by your microphone getting too close to a loudspeaker.
We recommend:
• Reduce the volume of the sound system.
• Move away from the loudspeaker.
• Turn the microphone away from the loudspeaker.
5.

Trouble Shooting

5.1 NE 100 S Diversity Receiver
Problem
No function
No reception
Distorted sound
No sound, RF-indication
is okay, AF- indication is
missing during modu -
lation
5.2

Handheld and Beltpack Transmitter

Problem
No function
No RF-indication at
the receiver
Noise/chirping
36
Possible Cause
• Power supply is interrupted, power
supply unit is not connected to the mains
and / or to receiver
• Transmitter is not switched on
• Transmitter works on a different
channel
• Antennae are not pulled out fully
• Defect in the antenna cables with
remote antennae
• Input amplifier of the connected mixer
is overloaded
• No microphone connected to
TS 100 Mk II beltpack transmitter
Possible Cause
• Transmitter and receiver have different
frequencies
• Insufficient battery voltage
• Poor battery contact, battery inserted
incorrectly
• Transmission distance between transmitter
and receiver is too great
• Interference from other transmitters
• Battery of the transmitter is too weak
Solution
• Connect the receiver to AC power
• Switch on the transmitter
• Check if receiver and transmitter
have the same frequency
• Pull out antennae
• Check the antenna cables
• Use the gain control of the mixer or
adjust the volume
• Connect a suitable microphone
Solution
• Check if transmitter and receiver
have the same frequency
• Replace the battery or recharge
it, if you use a rechargeable battery
• Check the battery and insert it again
• Reduce the distance between
transmitter and receiver
• Switch off the other transmitters
• Replace the batteries