Yamaha A-S700 Manual De Instrucciones página 15

Problems
Sound is muted.
No sound
Incorrect cable connections.
No appropriate input source has been
selected.
The SPEAKERS selector is not set
properly.
The protection circuitry has been activated
The sound suddenly
because of a short circuit, etc.
goes off.
Incorrect cable connections.
Only the speaker on
one side can be
heard.
Incorrect setting for the BALANCE
control.
The + and – wires are connected in
There is a lack of
reverse at the amplifier or the speakers.
bass and no
ambience.
Incorrect cable connections.
A "humming" sound
can be heard.
No connection from the turntable to the
GND terminal.
The turntable is connected to the jacks
The volume level is
other than the PHONO jacks.
low while playing a
record.
The record is being played on a turntable
with an MC cartridge.
The component connected to LINE 2 REC
The volume level
or LINE 3 REC terminals of this unit is
cannot be increased,
turned off.
or the sound is
distorted.
The power of this unit is turned off, or this
The sound is
unit is set to the standby mode.
degraded when
listening with the
headphones
connected to the CD
player or the tape
deck connected to
this unit.
The LOUDNESS control is functioning.
The sound level is
low.
The CD DIRECT AMP switch is turned
The input source
on.
cannot be changed
although the INPUT
selector is rotated.
The CD DIRECT AMP switch or the
Using the BASS,
PURE DIRECT switch is turned on.
TREBLE, BALANCE
and LOUDNESS
controls does not
affect the tonal
quality.
Possible Causes Solutions
Press MUTE on the remote control to resume the
audio output.
Connect the stereo cable for audio units and the
speaker wires properly. If the problem persists, the
cables may be defective.
Select an appropriate input source with the INPUT
selector on the front panel (or one of the input
selector buttons on the remote control).
Set the corresponding SPEAKERS selector to A, B or
A+B position.
Check that the IMPEDANCE SELECTOR setting is
correct.
Check that the speaker wires are not touching each
other or shorting out against the rear panel of this
unit, and then turn the power of this unit back on.
Connect the cables properly. If the problem persists,
the cables may be defective.
Set the BALANCE control to the appropriate
position.
Connect the speaker wires to the correct + and –
phase.
Connect the audio plugs firmly. If the problem
persists, the cables may be defective.
Make the GND connection between the turntable and
this unit.
Connect the turntable to the PHONO jacks.
Use a turntable equipped with an MM cartridge.
Turn on the power of the component.
Turn on the power of this unit.
Set the LOUDNESS control to the FLAT position.
Turn off the CD DIRECT AMP switch.
The CD DIRECT AMP switch or the PURE DIRECT
switch must be turned off to use those controls.
TROUBLESHOOTING
Refer to
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