10 Troubleshooting
Error checklist
Problem | Possible cause | What to do |
You hear whistling noise | Microphone volume is adjusted | Reduce the volume with the |
| too high | microphone volume control |
No operation indication | Battery is flat (transmitter) | Replace the battery |
| No mains connection (EMP 2015) | Check to see if the mains plug is |
|
| connected and if the amplifier is |
|
| turned on |
No RF signal and | Transmitter and/or receiver section | Turn the transmitter and/or |
no audio signal | are turned off | receiver section on |
| Transmission frequency is not the | Set the transmitter and the |
| same as the receiving frequency | receiver section to the same |
|
| frequency |
|
| ( “Special adjustments”) |
| Transmitting antenna is not connected | Connect the antenna |
RF signal available but | Transmitter is muted (“MUTE”) | Deactivate the muting function |
no audio signal | Receiver section’s squelch threshold | Adjust the squelch treshold to a |
| ||
| is adjusted too high | lower value ( “Adjusting the |
|
| squelch threshold”) |
| Microphone is not connected | Connect the microphone |
Speaker’s voice too soft | Microphone volume is adjusted | Increase the microphone |
| too low | sensitivity on the transmitter |
|
| or the microphone volume on |
|
| the EMP 2015 |
| Microphone is covered or | Position the microphone at |
| positioned too far from the mouth | the corner of the mouth |
Speaker’s voice too loud | Microphone volume is adjusted | Reduce the volume with the |
| too high | microphone volume control |
Speaker’s voice distorted | Transmitter sensitivity is adjusted | Adjust the sensitivity to a lower |
| too high | value ( “Adjusting the |
|
| sensitivity”) |
| Receiver section’s AF output level is | Reduce the volume with the |
| adjusted too high | microphone volume control |
Volume of sound reproducing | Volume at the line input is adjusted | Reduce the volume of the |
device adjusted too high | too high | audio device with the |
|
| corresponding volume control |
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