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Troubleshooting
Refer to the chart below when this system does not function properly. If the problem you are experiencing is not listed
below or if the instruction below does not help, disconnect the supply lead and contact your authorized YAMAHA dealer or
service center.
Problem
This system does not work
normally.
The sound suddenly goes off.
No sound from speakers.
No sound from the external
unit connected with this
system.
Timer cannot be set.
This system will not operate
properly.
The volume level cannot be
increased, or sound is
distorted.
Excessive static in FM
broadcasts.
Noise increases during stereo
broadcasts.
Stereo broadcasts are noisy
and STEREO indicator blinks
on and off.
Preset stations cannot be
selected.
Buzzing or static during AM
broadcasts.
AM broadcast sensitivity is
poor.
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E
Appendix
Cause
There is an influence of strong external
noise (lightning, excessive static electricity,
etc.) or the system was operated incorrectly.
The protection circuit was activated because
of a short circuit, etc.
The SLEEP timer was activated.
Speaker connections are not secure.
Incorrect cord connections.
Input source selection is not correct.
Current time is not set.
The internal microcomputer has been frozen
by an external electric shock (lightning,
excessive static electricity, etc.) or power
supply with low voltage.
The component connected to the AUX/MD
terminals on the rear of the main unit is
turned off.
Interference from starting motor of nearby
car.
Interference from thermostat of nearby
electric appliance.
Antenna input is too weak due to
obstructions or excessive distance from
broadcasting station.
Insufficient antenna input.
Preset memory has been erased.
Interference from sources such as lightning,
fluorescent lights, electric motors or
thermostat of nearby electric appliance.
TV or this system is being used nearby.
Radio signal is weak or antenna is not
properly connected.
What to Do
Set this system to the standby mode and disconnect the
AC supply lead from the AC outlet. After about 30
seconds, connect the power and operate this system
again.
Set this system to the standby mode, then turn on to
reset the protection circuit.
Cancel the SLEEP timer function.
Secure the connections.
Connect the cords properly. If the problem persists, the
cords may be defective.
Make a correct input source selection.
Set current time.
Unplug the AC supply lead from the wall AC outlet,
then plug in again after about one minute.
Turn on the power to the component.
Position the FM antenna as high and as far away from
nearby roads as possible. Use coaxial cable.
Check antenna connections.
Install a multi-element type FM antenna if possible.
Install an antenna suited for the electric field strength
of your area.
Reprogram memory presettings.
Problem is difficult to eliminate but can be lessened by
grounding AM loop antenna.
Move away from TV or this system.
Properly connect AM loop antenna.
Change orientation of AM loop antenna.
Install an external AM antenna.
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