Additional Information; Troubleshooting - Yamaha A-S500 Owner's Manual

ADDITIONAL INFORMATION

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
Problems
The power cable is not connected.
This unit is not turned
on. The POWER on
The A button is pressed on the remote
indicator also does
control while this unit is turned off.
not light up.
There is a problem with the internal
circuitries of this unit.
The speaker wires are touching each other
This unit turns off
or shorting out against the rear panel.
suddenly and the
POWER on indicator
blinks.
This unit is turned off
after several seconds
of turning on, and the
POWER on indicator
The speaker is malfunctioning.
blinks.
The protection circuitry has been activated
because of excessive input or excessive
volume level.
The protection circuitry has been activated
due to excessive internal temperature.
The IMPEDANCE SELECTOR switch is
not fully slid to either position.
The IMPEDANCE SELECTOR switch is
not set to the correct position.
This unit has been exposed to a strong
external electric shock (such as lightning
or strong static electricity).
There is a problem with the internal
circuitries of this unit.

TROUBLESHOOTING

Possible Causes Solutions
Connect the power cable firmly.
Press A switch on the front panel to ON.
Disconnect the power cable and contact the nearest
authorized Yamaha dealer or service center. If an
unusual odor or noise is generated from the unit, do
not turn on the power, disconnect the power cable,
and contact a service center for repair.
Connect the speaker cables properly and press the A
switch again. The INPUT indicators blink and the
volume is decreased automatically. After the volume
has decreased to the lowest setting, the INPUT
indicators stop flashing, the INPUT indicator of the
last input source selected lights up, and the unit may
be used again. Confirm normal sound output from
speakers by increasing the volume gradually, then
operate this unit normally.
Replace the speaker set and press the A switch again.
The INPUT indicators blink and the volume is
decreased automatically. After the volume has
decreased to the lowest setting, the INPUT indicators
stop flashing, the INPUT indicator of the last input
source selected lights up, and the unit may be used
again. Confirm normal sound output from speakers
by increasing the volume gradually, then operate this
unit normally.
Rotate the VOLUME control on the front panel to
decrease the volume level and then turn the power on
again.
Allow about 30 minutes for the temperature inside
this unit to decrease, rotate the VOLUME control on
the front panel to lower the volume and then turn the
power on again. Set the unit in a place where heat can
readily dissipate from the unit.
Turn the power off and slide the IMPEDANCE
SELECTOR switch all the way to the correct
position.
Set the IMPEDANCE SELECTOR switch to the
position that corresponds to the impedance of your
speakers.
Set this unit to standby mode, disconnect the power
cable, plug it back in after 30 seconds, then use the
unit normally.
Disconnect the power cable and contact the nearest
authorized Yamaha dealer or service center. If an
unusual odor or noise is generated from the unit, do
not turn on the power, disconnect the power cable,
and contact a service center for repair.
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En