PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier
33
Troubleshooting
Problem
Solution
No Sound
- Check to see that the loop amplifier is on.
- Make sure the input source is on/playing.
- On the “Loop Status” screen, the horizontal bar graph should be pulsing with the
audio from the input source.
- Plug in headphones and make sure the input source is producing audio.
- Check loop connections - are both loop ends connected firmly and are the cable
ends properly terminated with exposed wire in the contacts (insulation stripped off)?
Interference / Hum / Background Noise
- Are hearing aids/receivers on/set correctly?
- Turn the loop system off and check to see if background noise remains. If it does,
the noise may be created by other electrical systems and picked up by the loop. Turn
off nearby appliances to find the source of the interference.
- If a microphone is connected to the microphone input, try shutting off the microphone
or unplugging it. If the noise goes away, turn it back on and try reducing the
microphone input gain.
Announcements Not Heard
- Is the announcement source on and working? Can announcements be heard on the
70-100v speakers?
- Check connections to the amplifier. Is the announcement source connected to the
70-100v input?
- If the announcement source is properly connected, try increasing the input gain on
the loop amplifier, or the output gain of the 70-100v source.