Yamaha R-S500 Owner's Manual page 56

TROUBLESHOOTING
■ Tuner
Problem
FM stereo
reception is
noisy.
There is
distortion, and
clear reception
cannot be
FM obtained even
with a good FM
antenna.
The desired
station cannot
be tuned in
with the
automatic
tuning method.
NO PRESETS
is displayed.
FM/
WRONG
AM
STATION is
displayed.
The desired
station cannot
be tuned in
with the
automatic
tuning method.
Automatic
station preset
AM
does not work.
There are
continuous
crackling and
hissing noises.
There are
buzzing and
whining noises.
52
En
Cause
The particular characteristics of the FM
stereo broadcasts being received may
cause this problem when the transmitter is
too far away or the antenna input is poor.
There is multipath interference.
The signal is too weak.
No preset stations are registered.
An invalid FM/AM frequency has been
input.
The signal is weak or the antenna
connections are loose.
Automatic station preset is not available
for AM stations.
The noises may result from lightning,
fluorescent lamps, motors, thermostats or
other electrical equipment.
A TV set is being used nearby.
Remedy
Check the antenna connections.
Try using a high-quality directional FM antenna.
Switch to monaural mode.
Adjust the antenna position to eliminate the multipath
interference.
Try using a high-quality directional FM antenna.
Try using the manual tuning method.
Register stations you want to listen to as preset
stations before operation.
Input a frequency that can be received.
Tighten the AM loop antenna connections and orient
it for the best reception.
Try using the manual tuning method.
Use manual station preset.
Try using an outdoor antenna and a ground wire.
This will help somewhat, but it is difficult to
eliminate all noise.
Move this unit away from the TV set.
See
page
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