Yamaha A-S501 Owner's Manual - Page 17

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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 then contact the nearest

authorized Yamaha dealer or service center.

Problem

This unit fails to turn

The power cable is not connected or the

on.

plug is not completely inserted.

The A AMP is pressed on the remote

control while this unit is turned off.

The impedance setting of the connected

speaker is too small.

The protection circuitry has been activated

because of a short circuit, etc.

There is a problem with the internal

circuitries of this unit.

This unit turns off

The speaker wires are touching each other

suddenly and the

or shorting out against the rear panel.

power indicator

blinks.

The speaker is malfunctioning.

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.

No sound.

Sound is muted.

Incorrect cable connections.

TROUBLESHOOTING

Cause

Connect the power cable firmly.

Press A (power) switch on the front panel to on.

Use speaker(s) with proper speaker impedance.

Check that the speaker wires are not touching each

other and then turn the power of this unit back on.

Disconnect the power cable and contact the nearest

authorized Yamaha dealer or service center.

Connect the speaker cables properly and press the A

(power) switch again. The INPUT indicators blink

and the volume is decreased to the lowest setting

automatically, then the INPUT indicators stop

flashing and the last input source selected lights up.

Confirm normal sound output from speakers by

increasing the volume gradually.

Replace the speaker set and press the A (power)

switch again. The INPUT indicators blink and the

volume is decreased to the lowest setting

automatically, then the INPUT indicators stop

flashing and the last input source selected lights up.

Confirm normal sound from speakers by increasing

the volume gradually.

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.

Turn off this unit, 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.

Press MUTE on the remote control or rotate the

VOLUME control.

Connect the stereo cable for audio units and the

speaker wires properly. If the problem persists, the

cables may be defective.

Remedy

See

page

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