Troubleshooting - Yamaha AX-V401 Owner's Manual

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.
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.
The remote control transmitter does not
work.
The distance or range within which the
remote control transmitter can be used
decreases.
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.
CAUSE
Power cord is not plugged in or is not
completely inserted.
Incorrect output cord connections.
Appropriate input selector is not pressed.
The protection circuit has activated because
of short circuit etc.
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.
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 too weak.
Power cord of this unit is not plugged.
REMEDY
Firmly plug in the power cord.
Connect the cords properly. If the problem
persists, the cords may be defective.
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 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 this unit
through the MC head amplifier.
Change position of the main unit.
Replace the batteries with new ones.
Plug in the power cord.
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