Sony UPW-C1/C2 - Manual (Page 48)

Troubleshooting
48
Symptom Meanings/Remedy
There is distortion in the sound. The attenuation level of the transmitter is too low. b
The input level of the tuner is extremely high. Press
the – button on the transmitter in attenuation level
setting mode to raise the attenuation level.
The transmitter and the tuner are set to different
channels.
b Set the transmitter to the same channel.
There is sound interruption or
noise. The RF indications on the tuner appear (the RF
indicator lights up) even when the transmitter is off.
b
Jamming radio waves are being received. Determine
which channels are usable (i.e., channels for which
the RF indications on the tuner do not appear (or for
which the RF indicator on the tuner does not light up)
and set the tuner and transmitter to the same usable
channel. When two or more transmitters are used
simultaneously, use another channel group that is
unaffected by jamming radio waves.
The transmitter and the tuner are set to different
channels.
b Set the transmitter to the same channel.
Two or more transmitters are set to the same channel.
b Set each transmitter to a different channel.
The transmitters are not set to the channels within the
same channel group.
b The channel plan which the
UWP series components use is set so that no signal
interference occurs when 2 to 12 transmitters are
used simultaneously. Set each transmitter to a
different channel within the same channel group.