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Yamaha AX-496/396 Owner's Manual: Troubleshooting

Yamaha stereo amplifier owner's manual.
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Refer to the chart below when this unit does not function properly. If the problem you are experiencing is not listed below or if
the instructions given below do not help, disconnect the power cord and contact your authorized YAMAHA dealer or service
The unit cannot be turned on or
turns off suddenly soon after the
power is turned on.
This unit does not work normally.
No sound.
The sound suddenly goes off.
Only one of the speakers
produces the sound.
There is a lack of bass and no
Sound "hums".
The volume level is low while
playing a record.
The volume level cannot be
increased, or sound is distorted.
The sound is degraded when
listening with the headphones
connected to the compact disc
player or tape deck that are
connected with this unit.
Sound level is low.
The input source cannot be
changed, though the INPUT
selector is turned.
Using the BASS, TREBLE,
controls does not affect the tone.
The remote control does not
The remote control does not
function properly.
Power cord is not plugged in nor
completely inserted.
the rear panel is not set to either end.
There is an influence of strong external
noise (lightning, excessive static
electricity, etc.) or a misoperation on this
unit while using this unit.
Incorrect output cord connections.
Appropriate input source is not selected.
The SPEAKERS switches are not set
Speaker connections are not secure.
The protection circuit has been activated
because of short circuit etc.
Incorrect setting of the BALANCE
Incorrect cord connections.
The + and – wires are connected in
reverse at the amplifier or speakers.
Incorrect cord connections.
No connection from the turntable to the
GND terminal.
The record is being played on a
turntable with an MC cartridge.
The component connected to the TAPE
OUT or MD OUT terminals of this unit is
turned off.
This unit is turned off or in the standby
The LOUDNESS control is functioning.
The CD/DVD DIRECT AMP switch is
The CD/DVD DIRECT AMP switch (or
PURE DIRECT switch for AX-496 only)
is ON.
The batteries of this remote control are
Wrong distance or angle.
Direct sunlight or lighting (of an inverter
type fluorescent lamp etc.) is striking the
remote control sensor of the main unit.
What to Do
Firmly plug in the power cord.
Set the switch to either end when this
unit is off.
Turn off this unit by pressing the
POWER switch. After about 30 seconds
have passed, turn on this unit and
operate this unit again.
Connect the cords properly. If the
problem persists, the cords may be
Select an appropriate input source with
the INPUT selector.
Set the corresponding SPEAKERS
switch to the ON position.
Secure the connections.
Turn off this unit by pressing the
POWER switch, and then turn this unit
on to reset the protection circuit.
Adjust it to the appropriate position.
Connect the cords properly. If the
problem persists, the cords may be
Connect the speaker wires in the
correct phase (+ and –).
Firmly connect the audio plugs. If the
problem persists, the cords may be
Make the GND connection between the
turntable and this unit.
The turntable should be connected to
this unit through the MC head amplifier.
Turn on the power to the component.
Turn on the power to this unit.
Set the LOUDNESS control to the FLAT
Switch off the CD/DVD DIRECT AMP
The CD/DVD DIRECT AMP switch (or
PURE DIRECT switch for AX-496 only)
must be switched OFF to use those
Replace the batteries with new ones.
The remote control will function from a
maximum range of 6 meters and no
more than 30 degrees off-axis from the
front panel.
Reposition of the main unit.


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This manual also for:

Ax-496, Ax-396

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