29
Amplifier
FM
AM
Others
Remote control transmitter
TROUBLESHOOTING
If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple
measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and
contact your authorized YAMAHA dealer or service center for help.
CAUSE
Power cord is not plugged in or is not completely
inserted.
Incorrect output cord connections.
The MUTING switch is ON.
Appropriate input selector is not pressed.
The protection circuit has activated because of
short circuit etc.
Incorrect setting of the BALANCE control.
Incorrect cord connection.
Incorrect cord connections.
No connection from the turntable to the GND
terminal.
The record is being played on a turntable with an
MC cartridge.
The sound output level of the rear speakers is 0.
The monaural sound source is played in DOLBY
PRO LOGIC or ENHANCED mode.
The sound output level of the center speaker is 0.
The center mode is in PHANTOM mode.
Incorrect sound field program selection.
No sound field program is selected.
Because of the characteristics of FM stereo
broadcasts, this is limited to cases where the
transmitter is too far away or the antenna input is
poor.
There is multipath interference.
The station is too weak.
Weak signal or loose antenna connections.
Noises will result from ligtning, fluorescent lamps,
motors, thermostats and other electrical equipment.
A television set is being used nearby.
Direct sunlight or lighting (of an inverter type of
flourescent lamp etc.) is striking the remote control
sensor of the main unit.
The batteries of this remote control transmitter are
weak.
The batteries of this remote control transmitter
and/or the other remote control transmitter are
weak.
The distance between the two remote control
transmitters is too long or too short.
The signal coding or modulation of the other remote
control transmitter is not compatible with this remote
control transmitter.
Memory capacity is full.
The internal microcomputer “freezes”.
Power cord of this unit is not plugged in.
REMEDY
Firmly plug in the power cord.
Connect the cords properly. If the problem persists,
the cords may be defective.
First, turn the volume control to full left. Then, turn
the MUTING switch OFF with the remote control
transmitter and adjust the volume.
Press the appropriate input selector corresponding
to the input source.
Turning the unit off and then on will reset the
protection circuit.
Adjust it to the appropriate position.
Connect cord properly. If the problem persists, the
cables may be defective.
Firmly connect the audio plugs. If the problem
persists, the cord may be defective.
Make the GND connection between the turntable
and this unit.
The player should be connected to the unit through
the MC head amplifier.
Turn up the sound output level with the REAR
LEVEL key.
Select another program suitable for the monaural
sound source.
Turn up the sound output level with the CENTER
LEVEL key.
Select NORMAL or WIDE.
Select the appropriate program.
Check the antenna connections.
Try using a multiple element FM antenna.
Adjust antenna placement to eliminate multipath
interference.
Use Manual tuning mode.
Use a high quality directional FM antenna.
Tighten the AM loop antenna connections and
rotate it for best reception.
Use Manual tuning mode.
Use an outdoor antenna and a ground wire. This
will help somewhat but it is difficult to eliminate all
noise.
Relocate this unit away from the TV.
Change the position of the main unit.
Replace the batteries with new ones and press the
RESET button on the remote control transmitter.
Replace the batteries (and press the RESET button
for this remote control transmitter).
Place the remote control transmitters with the
proper distance.
Learning is not possible.
Further learning is not possible without deleting
unnecessary commands.
Press the RESET button on the remote control
transmitter.
Plug in the power cord.
SYMPTOM
The unit fails to turn on when the POWER
switch is pressed.
No sound or no picture.
The sound suddenly goes off.
Only one side speaker outputs the sound.
Sound “hums”.
The volume level is low while playing a record.
No sound from the rear speakers.
No sound from the center speaker.
FM stereo reception is noisy.
There is distortion and clear reception cannot
be obtained even with a good FM antenna.
A desired station cannot be tuned in with Auto
tuning.
A desired station cannot be tuned in with Auto
tuning.
There are continuous crackling and hissing
noises.
There are buzzing and whining noises
(especially in the evening).
The remote control transmitter does not work.
Learning cannot be made successfully.
(The TRANSMIT/LEARN indicator does not
illuminate or flash.)
The sound is degraded when monitoring is
performed by using the headphones connected
to the compact disc player or cassette deck
which are connected with this unit.
