Beyerdynamic Opus 910 Mode D'emploi page 71

5. Trouble Shooting
5.1 NE 911 / 912 / 914 Diversity Receiver
Problem
No function
No reception
Distorted sound
"CLIP" indication on
receiver
No sound, RF-indication is
okay, AF- indication is
missing during
modulation
5.2 Handheld and Beltpack Transmitter
Problem
No function
No RF-indication at the
receiver
Noise/chirping
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
• Defect in the antenna cables with
remote antennae
• Input amplifier of the connected mixer is
overloaded
• Transmitter is overloaded
• Wrong indication caused by strong
interference signals
• No microphone connected to TS 910
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 big
• Interference from other transmitters
• Two transmitters are on the same
frequency
• Battery of the transmitter is too weak
Solution
• Connect the receiver to AC power
• Switch on the transmitter
• Adjust the correct frequency with the
ACT function
• Check the antenna cables
• Use the gain control of the mixer or
adjust the volume
• Reduce the sensitivity of the
transmitter or increase the distance
between microphone and sound
source.
• Choose another receiving channel
• Connect a suitable microphone
Solution
• Check if transmitter and receiver
have the same frequency
• Replace the batteries or recharge
them, if you use rechargeable
batteries
• Check the battery and insert it again
• Reduce the distance between
transmitter and receiver
• Switch off the other transmitters
• Change the frequency of one
transmitter
• Replace the batteries
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