TROUBLESHOOTING
36
En
Refer to the chart below if this unit does not function properly. If the problem you are experiencing is not listed below or
if the instructions below do not help, turn off this unit, disconnect the power cable, and contact the nearest authorized
Yamaha dealer or service center.
■
General
TROUBLESHOOTING
Problem
Cause
Remedy
See
page
This unit fails to turn
on.
The power cable is not connected or the
plug is not completely inserted.
Connect the power cable firmly.
—
The impedance setting is incorrect.
Set the impedance to match your speakers.
The protection circuitry has been activated
because of a short circuit, etc.
Check that the speaker wires are not touching each
other and then turn the power of this unit back on.
The IMPEDANCE SELECTOR switch on
the rear panel is not set to either end.
Set the IMPEDANCE SELECTOR switch to either
end when the power of this unit is turned off.
This unit has been exposed to a strong
external electric shock (such as lightning
or strong static electricity).
Turn off this unit, disconnect the power cable, plug it
back in after 30 seconds, then use it normally.
—
No sound
Incorrect input or output cable
connections.
Connect the cables properly. If the problem persists,
the cables may be defective.
No appropriate input source has been
selected.
Select an appropriate input source with the INPUT
selector on the front panel (or one of the input
selector buttons on the remote control).
The SPEAKERS A/B switches are not set
properly.
Turn on the corresponding SPEAKERS A or
SPEAKERS B.
Speaker connections are not secure.
Secure the connections.
Output has been muted.
Turn off the mute.
The MaxVol or IniVol setting is set too
low.
Set the setting to a higher value.
The component corresponding to the
selected input source is turned off or is not
playing.
Turn the component on and make sure it is playing.
—
The sound suddenly
goes off.
The protection circuitry has been activated
because of a short circuit, etc.
Check that the IMPEDANCE SELECTOR switch is
set to the correct position.
Check that the speaker wires are not touching each
other and then turn the power of this unit back on.
This unit has become too hot.
Make sure the openings on the top panel are not
blocked.
—
The automatic power down function has
turned this unit off.
Change the automatic power down setting (“APD
TIMER” in the Advanced Setup menu) to a longer
setting, or disable the automatic power down function
by setting the POWER MANAGEMENT switch on
the rear panel to OFF.
Only the speaker on
one side can be
heard.
Incorrect cable connections.
Connect the cables properly. If the problem persists,
the cables may be defective.
Incorrect setting for the BALANCE
control.
Set the BALANCE control to the appropriate
position.
There is a lack of bass
and no ambience.
The + and – wires are connected in
reverse at the amplifier or the speakers.
Connect the speaker wires to the c and –
phase.
ADDITIONAL INFORMATION
