Yamaha RX-V800 Owner's Manual page 73

I Tuner
Problem
FM stereo
reception is noisy.
There is distortion,
and clear reception
cannot be obtained
even with a good
FM
FM antenna.
The desired station
cannot be tuned in
with the automatic
tuning method.
Previously preset
stations can no
longer be tuned in.
The desired station
cannot be tuned in
with the automatic
tuning method.
There are
continuous
AM
crackling and
hissing noises.
There are buzzing
and whining noises
(especially in the
evening).
Cause
The characteristics of FM stereo broadcasts
may cause this problem when the
transmitter is too far away or the antenna
input is poor.
There is multipath interference.
The station is too weak.
The unit has been disconnected for a long
period.
The signal is weak or the antenna
connections are loose.
Noises result from lightning, fluorescent
lamps, motors, thermostats and other
electrical equipment.
A TV set is being used nearby.
Remedy
Check the antenna connections.
Try using a high-quality directional FM
antenna.
Use the manual tuning method.
Adjust the antenna position to eliminate
multipath interference.
Use the manual tuning method.
Use a high-quality directional FM antenna.
Re-store the stations.
Tighten the AM loop antenna connections and
orient it for best reception.
Use the manual tuning method.
Use 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.
TROUBLESHOOTING
Refer to
page
30, 31
30
30, 31
32
30, 31
30
—
69