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5.2 Handheld and Beltpack Transmitter
• Transmitter and receiver have different
frequencies
• Insufficient battery voltage
• Poor battery contact, battery inserted
incorrectly
• 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
•
Transmission distance between transmitter
and receiver is too great
• Reduce the distance between
transmitter and receiver
No RF-indication at
the receiver
•
Interference from other transmitters
• Two transmitters are on the same
frequency
• Battery of the transmitter is too weak
• Switch off the other transmitters
• Change the frequency of one
transmitter
• Replace the batteries
Noise/chirping
No function
Problem Possible Cause Solution
6. Maintenance
In the unlikely event of equipment failure, the product should be returned to your
beyerdynamic dealer. Unauthorised attempts at repair may invalidate the warranty.
7. Licensing
In most countries around the world, wireless systems must be approved for use by the
authorities and it may be necessary to obtain a licence to use it legally. Your local beyerdynamic
dealer will be able to give you details on wireless system regulations for your area.
The components of the Opus 300 system are approved according to the directive R&TTE 99/5/EEC:
NE 300 S, NE 300 D
SEM 381, SDM 360, SDM 369, TS 300
under the CE 0336 ! identification.
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