Yamaha R-N303 D Owner's Manual page 53

Problem
The protection circuitry has been activated
The sound suddenly
because of a short circuit, etc.
goes off.
This unit has become too hot.
The auto power standby function has
turned this unit off.
Incorrect cable connections.
Only the speaker on
one side can be
heard.
Incorrect setting for the speaker balance.
The + and – wires are connected in
There is a lack of bass
reverse at the amplifier or the speakers.
and no ambience.
Incorrect cable connections.
A "humming" sound
can be heard.
The power of this unit is turned off, or this
The sound is
unit is set to standby mode.
degraded when
listening with the
headphones
connected to the CD
player or the tape
deck connected to
this unit.
■
Remote control
Problem
Wrong distance or angle.
The remote control
does not work nor
function properly.
Direct sunlight or lighting (from an
inverter type of fluorescent lamp, etc.) is
striking the remote control sensor of this
unit.
The batteries are weak.
■
FM reception
Problem
The unit is receiving radio interference,
The FM radio
such as multipath reflections.
reception strength is
poor, and noise can
The unit is receiving in a region located
be heard.
far away from the radio station.
The FM radio signal is weak.
The radio station
cannot be
automatically
selected.
Possible cause
Possible cause
Possible cause
Remedy
Set the speaker impedance to match your speakers.
Check that the speaker wires are not touching each
other and then turn the power of this unit back on.
Make sure the openings on the top panel are not
blocked.
Change the auto power standby ("AutoPowerStby" in
the "SETUP" menu) to turn off.
Connect the cables properly. If the problem persists,
the cables may be defective.
Set the speaker balance ("Balance" in the "SETUP"
menu) to the appropriate setting.
Connect the speaker wires to the correct + and –
phase.
Connect the audio plugs firmly. If the problem
persists, the cables may be defective.
Turn on the power of this unit.
Remedy
The remote control will function within a maximum
range of 6 m (20 ft) and no more than 30 degrees off-
axis from the front panel.
Reposition this unit.
Replace all batteries.
Remedy
Change the FM antenna height, direction, or place of
installation.
Press the MODE button repeatedly on the remote
control (or on the front panel) to set "FM Mode" to
"Mono".
Use a commercially-available outdoor antenna.
Use a commercially-available outdoor antenna.
Select the station manually.
Troubleshooting
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page
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En