Yamaha HTR-5730 Bedienungsanleitung Seite 52

TROUBLESHOOTING
Problem
There is noise interfer-
ence from digital or
high-frequency
equipment, or this unit.
The unit suddenly turns
into standby mode.
I Tuner
Problem
FM stereo reception is
noisy.
There is distortion, and
clear reception cannot
FM be obtained even with a
good 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).
50
Cause
This unit is too close to the digital or high-
frequency equipment.
The internal temperature has become too
high and the overheat protection circuitry
has been activated.
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
Move this unit further away from such
equipment.
Wait until the unit cools down and then turn it
back on.
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 a high-quality directional FM antenna.
Use the manual tuning method.
Preset the stations again.
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.
Refer to
page
–
–
Refer to
page
12
31
–
–
31
32
–
31
12
–