53
English
Amplifier
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.
SYMPTOM
The unit fails to turn on when the
STANDBY/ON switch is pressed, or
turns into the standby mode suddenly
soon after the power is turned on.
It happens that this unit does not work
normally.
No sound or no picture.
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.
The volume level cannot be increased,
or sound is distorted.
No sound from the rear speakers.
No sound from the center speaker.
CAUSE
Power cord is not plugged in or is not
completely inserted.
The IMPEDANCE SELECTOR switch on the
rear panel is not set to the upper or the
lower end closely.
There is an influence of strong external
noise (lightning, excessive static electricity,
etc.) or a misoperation on this unit while
using this unit.
Incorrect output cord connections.
Appropriate input source is not selected.
The SPEAKERS switches are not set
properly.
Speaker connections are not secure.
There is no S video terminal connection
between this unit and the TV, though S
video signals are input to this unit.
The protection circuit has been activated
because of short circuit etc.
The SLEEP timer has functioned.
Incorrect setting of the BALANCE control.
Incorrect cord connections.
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 component connected to the REC OUT
terminals of this unit is in the standby mode.
The sound output level to the rear speakers
is set to minimum.
The monaural sound source is played in
DOLBY PRO LOGIC or DOLBY PRO
LOGIC ENHANCED mode.
The sound output level to the center
speaker is set to minimum.
The center channel mode is in PHANTOM
mode.
Incorrect sound field program selection.
REMEDY
Firmly plug in the power cord.
Set the switch to the upper or the lower end
closely.
Turn this unit into the standby mode and
disconnect the AC power cord from the AC
outlet. After about 30 seconds have passed,
connect the power and operate this unit
again.
Connect the cords properly. If the problem
persists, the cords may be defective.
Select an appropriate input source with the
input selector buttons.
Set the SPEAKERS switch which
corresponds to the speakers to be used to
the ON position.
Secure the connections.
Connect this unit’s S VIDEO MONITOR OUT
terminal to the TV’s S video input terminal.
Turning the unit into the standby mode and
then on will reset the protection circuit.
Cancel the SLEEP timer function.
Adjust it to the appropriate position.
Connect the cords properly. If the problem
persists, the cords may be defective.
Firmly connect the audio plugs. If the
problem persists, the cords 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 the power to the component on.
Raise the sound output level to the rear
speakers.
Select another program suitable for the
monaural sound source.
Raise the sound output level to the center
speaker.
Select NORMAL or WIDE.
Select the appropriate program.
TROUBLESHOOTING
