Listen Technologies LR-500 - Manual (Page 40)

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Troubleshooting LR-400, LR-500 Receivers
Troubleshooting
The receiver has no power.
Make sure the unit has either fully charged batteries or a Listen approved wall transformer
connected. Make sure the VOLUME knob has been rotated to the ON position. If this does not
work, try a different set of batteries. Make sure the batteries are installed properly.
There is no audio.
Make sure you have turned the volume control up. Make sure the earphone is plugged all the
way into the jack on the top of the unit. Make sure the transmitter is broadcasting an audio
source. Make sure you’re tuned to the same channel as the transmitter. If the RF signal is too
weak, the receiver will squelch and mute the audio source; move closer to the antenna or make
sure the transmitter’s output RF power switch is set on “FULL” (LT-800).
The audio is distorted.
Make sure you’re receiving on the correct channel. Make sure the audio on the
transmitter is not turned up too loud; this will cause distortion. Make sure the earphone
connector is pushed all the way into the jack on top of the unit. Make sure the SQ™ switch on
your transmitter and receivers is turned ON (or OFF, if some of your equipment is not SQ™
capable). Make sure you are not too close to the transmitting antenna. If you can’t get farther
away from the antenna, turn down the RF output power on the stationary (LT-800) transmitter.
There is interference.
Try different frequencies on the transmitter and receivers until you find a clear channel.
Please contact Listen technical support for assistance (see page 38 for information).
I cannot pick up the signal on the receiver.
Check to make sure the receiver and the transmitter are on the same frequency and
channel. Also make sure the receiver is in broadcast range of the transmitter.
I can pick up the signal on the receiver, but it sounds like it’s not tuned in.
Check to make sure the transmitter and receiver are on exactly the same channel
number/letter.
There is not sufficient range.
Make sure you are located as close as possible to the antenna of the transmitter. Try to place the
antenna as high as possible and free from obstacles. You can also check the squelch setting;
perhaps it is too sensitive. To change this setting, refer page 14 (LR-500) or to page 29 (LR-400).