Yamaha RX V661 MCXSP10 Manual - Page 103

Tuner, Check Sp Wires - fm antenna

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Troubleshooting Problem Cause Remedy "CHECK SP WIRES" appears in the front panel display. Speaker cables are short-circuited. Make sure all speaker cables are connected correctly. There is noise interference from digital or radio frequency equipment. This unit is too close to the digital or highfrequency equipment. Move this unit further away from such equipment. The picture is disturbed. The video source uses scrambled or encoded signals to prevent dubbing. This unit suddenly enters the standby mode. The internal temperature is too high and the overheat protection circuitry has been activated. Wait about 1 hour for this unit to cool down and then turn it back on. ■ Tuner See page 13 - - Problem Cause Remedy 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 into with the automatic tuning method. Previously preset stations can no longer be tuned into. The desired station cannot be tuned into with the automatic tuning method. AM There are continuous crackling and hissing noises. There are buzzing and whining noises. 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 multi-path interference. The signal is too weak. This unit has been disconnected for a long period. The signal is weak or the antenna connections are loose. Noise can result from lightning, fluorescent lamps, motors, thermostats and other electrical equipment. A TV set is being used nearby. Check the antenna connections. Try using a high-quality directional FM antenna. Use the manual tuning method. Adjust the antenna position to eliminate multi-path 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 the antenna for the 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 set. See page 24 - 50 - - 50 51 - 50 - - ADDITIONAL INFORMATION English 99 En

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99
En
Troubleshooting
ADDITIONAL
INFORMATION
English
■
Tuner
Problem
Cause
Remedy
See
page
“CHECK SP WIRES”
appears in the front
panel display.
Speaker cables are short-circuited.
Make sure all speaker cables are connected correctly.
13
There is noise
interference from
digital or radio
frequency equipment.
This unit is too close to the digital or high-
frequency equipment.
Move this unit further away from such equipment.
—
The picture is
disturbed.
The video source uses scrambled or
encoded signals to prevent dubbing.
This unit suddenly
enters the standby
mode.
The internal temperature is too high and
the overheat protection circuitry has been
activated.
Wait about 1 hour for this unit to cool down and then
turn it back on.
—
Problem
Cause
Remedy
See
page
FM
FM stereo reception is
noisy.
The characteristics of FM stereo
broadcasts may cause this problem
when the transmitter is too far away or
the antenna input is poor.
Check the antenna connections.
24
Try using a high-quality directional FM
antenna.
—
Use the manual tuning method.
50
There is distortion, and
clear reception cannot
be obtained even with a
good FM antenna.
There is multi-path interference.
Adjust the antenna position to eliminate
multi-path interference.
—
The desired station
cannot be tuned into
with the automatic
tuning method.
The signal is too weak.
Use a high-quality directional FM antenna.
—
Use the manual tuning method.
50
Previously preset
stations can no longer
be tuned into.
This unit has been disconnected for a
long period.
Preset the stations again.
51
AM
The desired station
cannot be tuned into
with the automatic
tuning method.
The signal is weak or the antenna
connections are loose.
Tighten the AM loop antenna connections
and orient the antenna for the best reception.
—
Use the manual tuning method.
50
There are continuous
crackling and hissing
noises.
Noise can result from lightning,
fluorescent lamps, motors, thermostats
and other electrical equipment.
Use an outdoor antenna and a ground wire.
This will help somewhat, but it is difficult to
eliminate all noise.
—
There are buzzing and
whining noises.
A TV set is being used nearby.
Move this unit away from the TV set.
—