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E-52
TROUBLESHOOTING
If your 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, 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
AC supply lead is not plugged in.
There is an influence of strong external
noise (lightning, excessive static
electricity, etc.) or a misoperation on this
system while using this system.
Loose speaker connections.
Internal protection circuit is functioning.
One rear speaker connection is loose or
bad.
The sound output level to the rear
speakers is set to minimum.
No DSP program is selected.
The sound output level to the center
speaker is set to minimum.
Incorrect DSP program selection.
No DSP program is selected.
Incorrect cord connections.
Input source selection is not proper.
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.
Interference from starting motor of nearby
car.
Interference from thermostat of nearby
electrical 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 source such as lightning,
flourescent lights, electric motors or
thermostat of nearby electrical appliance.
TV or microprocessor is being used
nearby.
Radio signal is weak or antenna is not
properly connected.
Disc is upside down.
Disc is dirty.
Input selector setting is incorrect.
Disc is dirty.
Volume is set too high.
Batteries are dead.
Remote control is too far away or is being
used at incorrect angle.
Direct sunlight or lighting (of an inverter
type of flourescent lamp etc.) is striking
the remote control sensor of the main unit.
Remote control is being used near TV set
with a remote control sensor.
SYMPTOM
No power even if the POWER switch is
pressed.
It happens that this system does not
work normally.
No sound from one speaker
No sound from speakers.
No sound from the rear speakers.
No sound from the center speaker.
No sound (or no picture) from an
external unit connected with this
system.
Can’t set timer.
This unit will not operate properly.
Excessive static in FM broadcasts.
Noise increases during stereo
broadcasts.
Stereo broadcasts are noisy and ST
indicator blinks on and off.
Cannot select preset stations.
Buzzing or static during AM (LW or
MW) broadcasts.
AM (LW or MW) broadcast sensitivity is
poor.
Playback will not begin even if disc is
loaded.
No sound.
Sound stops suddenly (always at same
spot).
Remote control doesn’t work.
TV functions strangely when the remote
control is used.
REMEDY
Plug in the AC supply lead.
Turn this system 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 system again.
Connect properly.
Unplug the AC supply lead from the wall AC outlet,
and then plug in again.
Connect it properly.
Raise the sound output level to the rear speakers.
Select the appropriate program.
Raise the sound output level to the center speaker.
Select the appropriate program.
Connect the cords properly. If the problem persists,
the cords may be defective.
Make a proper input source selection.
Set current time.
Unplug the AC supply lead from the wall AC outlet,
and then plug in again after about one minute.
Position the FM antenna as high and as far away
from nearby roads as possible. Connect using a
coaxial cable.
Check antenna connections.
Install a multi-element type FM antenna if possible.
Install an antenna appropriate for the electric field
strength of your area.
Reprogram memory presets.
Problem is difficult to eliminate but can be lessened
by grounding MW/LW (AM) loop antenna.
Move away from TV or microprocessor.
Properly connect MW/LW (AM) loop antenna.
Change orientation of MW/LW (AM) loop antenna.
Install an external MW/LW (AM) antenna.
Load disc label side up.
Clean disc.
Press the CD input selector button.
Clean disc.
Lower volume.
Replace batteries.
Use within 6 m and 60° radius.
Change position of the main unit.
Relocate this unit away from the TV or cover TV’s
remote control sensor.
GENERALTUNERCD PLAYER
REMOTE CONTROL