Yamaha R-N301 Manual De Instrucciones página 40

Troubleshooting
Problem
There is a lack of bass
and no ambience.
A "humming" sound
can be heard.
The sound is
degraded when
listening with the
headphones
connected to the CD
player or the tape
deck connected to
this unit.
■ 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.
FM/ NO PRESETS
AM 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.
38
En
Cause
The + and – wires are connected in
reverse at the amplifier or the speakers.
Incorrect cable connections.
No connection from the turntable to the
GND terminal.
The power of this unit is turned off, or this
unit is set to standby mode.
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.
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
Connect the speaker wires to the correct + and –
phase.
Connect the audio plugs firmly. If the problem
persists, the cables may be defective.
Make the GND connection between the turntable and
this unit.
Turn on the power of this unit.
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.
Tighten the AM 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
10
10
10
15
See
page
12
17
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17
18
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