28
What to do if ...
Problem: Possible cause: Remedy:
Noise from loudspeaker a) Level adjustment incorrect Please observe notes on correct level setting in
Operating Guide page 27.
b) Transmitter not correctly mounted
Try re-positioning the transmitter, perhaps
install vertically (see Operating Guide page 27).
c) Interference in radio transmission
Try other RF channel (see Operating Guide page
25 or 27).
Noise starts in loudspeaker although transmit-
ter is in standby mode
RF interference from outside
Try other RF channel (see Operating Guide
page 25 or 27).
Hum from loudspeaker
Transmitter is close to a power supply or inter-
ference source
Re-position transmitter (do not place on units
such as DVD players, videorecorders or hi-fi
systems).
Background noise audible in the loudspeaker a) Interference with RF transmission Try repositioning transmitter (see Operating
Guide page 27).
Try other RF channel
b) Possible disturbance in signal source (e.g.
tuner)
Select other signal source
Transmitter switches off Input level at transmitter too low Modulate transmitter with higher signal (alter
volume level), possibly then reduce volume
with level-controller on rear panel of loud-
speaker (see Operating Guide page 27)
Loudspeakers switch off while operating, trans-
mitter continues to operate
a) Transmit signal too low Modulate transmitter higher through signal
source (increase volume), possibly then lower
volume at the loudspeakers.
b) Transmission path poor Try re-positioning the transmitter
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