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6th possible cause:

 Oxidation of batteries.

What to do:

 Rotate the batteries inside the battery compartment to remove any oxidation from the 

batteries and the battery contacts.

7th possible cause:

 Headphones hung up.

What to do:

 Switch headphones off and on again.

8th possible cause:

 Strong interference.

What to do:

 Ensure that there is no strong interference from  5.8 GHz cordless telephones, 5.8 

GHz wireless LANs or other transmitters in the 5.8 GHz range. Relocate the cordless phone base 
station into another room if possible, relocate the transmitter to achieve a stronger signal or use 
RangeBooster transmitters.

Problem 6: The operating range is only a few feet from the transmitter.

1st possible cause: 

Strong interference.

What to do:

 Same as Problem 5 - Strong interference.

2nd possible cause:

 Batteries empty.

What to do:

 Check the batteries and recharge them if necessary.

Problem 7: Audio at headphones drops out intermittently.

1st possible cause:

 Batteries empty.

What to do:

 Check the batteries and recharge them if necessary.

2nd possible cause:

 Strong interference

What to do:

 Same as Problem 5 - Strong interference - see also Problem 8.

3rd possible cause:

 Signal blocked by obstacles.

What to do:

 Try relocating the transmitter to achieve better coverage or use RangeBooster 

transmitters.

4th possible cause:

 Unstable power.

What to do:

 Make sure that the power outlet voltage is stable. Try using a surge protector.

© 2004 Amphony                                   November 2004                                                                     3

Summary of Contents for 2500

Page 1: ...r for such an adapter Usually such outputs have a volume control that can be used to adjust the audio output level Problem 2 Battery lid at headphones doesn t open What to do Press the very outside edge of the battery lid firmly into the capsule as illustrated in the manual The battery lid will flip open B Problems during operation Problem 3 None of the interface indicator lights light when power ...

Page 2: ...hat to do Disconnect and then reconnect DC power to the transmitter Problem 5 No audio at headphones 1st possible cause Audio volume control set to minimum What to do Slowly increase the volume at the headphones 2nd possible cause Transmitter audio level control set to minimum if analog audio interface is used What to do Slowly rotate transmitter audio level control clockwise 3rd possible cause No...

Page 3: ...blem 6 The operating range is only a few feet from the transmitter 1st possible cause Strong interference What to do Same as Problem 5 Strong interference 2nd possible cause Batteries empty What to do Check the batteries and recharge them if necessary Problem 7 Audio at headphones drops out intermittently 1st possible cause Batteries empty What to do Check the batteries and recharge them if necess...

Page 4: ...ontrol until no more clipping occurs 2nd possible cause Batteries empty What to do Check the batteries and recharge them if necessary 3rd possible cause Wrong digital interface format if digital audio interface is used What to do Ensure that the audio device delivers uncompressed linear audio data at 32 kHz 44 1 kHz or 48 kHz 4th possible cause Strong interference What to do Same as Problem 5 Stro...

Page 5: ...utput of the audio device is activated 2nd Possible cause Faulty cable What to do Try using another digital audio cable Contacting Amphony Support For contact details and Local Sales Representatives visit the Amphony web site at http www amphony com Amphony has made best efforts to ensure that the information contained in this document is accurate and reliable However the information is subject to...

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