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Hearing Static:
• Test the 370T with a fully charged AA battery.
• Confirm the the TK-250 cable is inserted securely into the 370T.
• Check battery contacts. Clean if necessary.
• If static occurs only when wiggling the TK-250 cord, determine whether
the static is coming from the cable or the 370T jack by firmly holding
the plug into the jack and moving the cord along its length.
• If you have access to another microphone, try it in the 370T. If it works,
your original microphone may need to be repaired. If the system checks
out okay, and you still hear some occasional static or popping, you may be
experiencing radio frequency interference (RFI). If the microphone is okay,
and you think it may be interference, try switching the channel to the other
frequency and see if the interference goes away. Confirm that your
frequency is not being duplicated by another wireless FM system within the
building. Continued RFI may require exchanging your system for one with
a different frequency.
Low Volume:
• Check volume level on LES-391 and adjust as necessary. Clockwise
adjustment of the volume knob will increase volume.
• If volume is too low, check to be sure that the batteries are properly
charged in the 370T and the SoundPak.
Sound Fades In and Out (Drop Out):
• Test the 370T with a fully charged AA battery.
• Make sure the batteries in the LES-391 are properly charged as well.
• Check volume level on the 370T. Normal levels should be achieved with
the volume knob set in the middle. If the teacher has a quiet voice, it may
need to be set at a higher level.
No Sound From Speaker:
• Check the LES-391 volume level.
• Confirm the 370T and SoundPak have matching frequencies.
(A with A or B with B)
• Confirm the TK-250 cable is securely inserted into the 370T.
• Confirm the 370T power switch is turned on and that its power
LED is lit.
• Confirm that the LES-391 is turned on and that the power LED is lit.
• Confirm that there are no headphones plugged into the headphone jack.
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