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Yamaha A-S700 - Amplifier Manual del usuario

TROUBLESHOOTING

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, set this unit to the standby mode, disconnect the power cable, and contact the

nearest authorized Yamaha dealer or service center.

•

General

Problems

Possible Causes

Solutions

Refer to

page

Pressing the POWER

The supplied power cable is not connected

Connect the supplied power cable firmly.

switch on the front

or the cable is not completely inserted.

panel does not turn

Press POWER on the front panel to ON.

on this unit. The

The POWER

(I )

button is pressed on the

POWER on indicator

remote control while this unit is turned

also does not light up.

off.

There is a problem with the internal

Disconnect the AC power cable and contact the

circuitries of this unit.

nearest authorized Yamaha dealer or service center. If

an unusual odor or noise is generated from the unit,

do not tum on the power, disconnect the AC power

cable, and contact a service center for repair.

The power of this unit

The speaker wires are touching each other

Connect the speaker cables properly and press the

is turned off suddenly

or shorting out against the rear panel.

power button ON again. The VOLUME is decreased

and the POWER on

automatically and this unit is turned on after the

indicator blinks.

INPUT indicator blinks for about 15 seconds.

Confirm normal sound output from speakers by

increasing the volume gradually, then you can operate

This unit is turned off

this unit normally.

after several seconds

of turning on, and the

The speaker is a malfunction.

Replace the speaker set and press the power button

POWER on indicator

ON again. The VOLUME is decreased automatically

blinks.

and this unit is turned on after the INPUT indicator

bl inks for about 15 seconds. ConfIrm normal sound

output from speakers by increasing the volume

gradually, then you can operate this unit normally.

The protection circuitry has been activated

Rotate the VOLUME control on the front panel to

because of excessive input or excessive

decrease the volume level and then tum the power on

volume level.

again.

The protection circuitry has been activated

Allow about 30 minutes for the temperature inside

due to excessive internal temperature.

this unit to decrease, rotate the VOLUME control on

the front panel to lower the volume and then tum the

power on again. Set the unit in a place where heat can

readily dissipate from the unit.

The IMPEDANCE SELECTOR switch

Tum the power off and slide the IMPEDANCE

may not be fully slid to either position.

SELECTOR switch all the way to either position.

The impedance setting is incorrect.

Set the impedance to match your speakers.

This unit has been exposed to a strong

Set this unit to the standby mode, disconnect the

external electric shock (such as lightning

power cable, pI ug it back in after 30 seconds, then use

or strong static electricity l.

it normally.