Bedienungsanleitung Yamaha tx-497 (Seite 21 von 134) (Italienisch, Spanisch)

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TROUBLESHOOTING

English

ADDITIONAL

INFORMATION

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 instruction below does not help, turn off the power of this unit, disconnect the power cord, and contact the

nearest authorized YAMAHA dealer or service center.

■ Tuner

TROUBLESHOOTING

Problem Cause Remedy

Refer

to page

There are occasional

crackling noises

(especially in weak

signal areas).

Noise resulting from motors,

thermostats or other electrical

equipment.

Position the FM antenna as high as possible

away from roads and digital or high-

frequency equipment.

Use a coaxial cable.

Attach a noise suppressor to the equipment

causing the noise.

—

FM stereo reception is

noisy.

The characteristics of FM stereo

broadcasts may cause this problem

when the transmitter is too far away or

the antenna input is poor.

Check the antenna connections.

Try using a high-quality directional FM

antenna.

Set the TUNING MODE button to the

manual tuning mode.

Use the manual tuning method.

The ST indicator

flickers and reception is

noisy.

Insufficient antenna input. Use an antenna appropriate for the reception

conditions in your area.

—

The station is not tuned correctly. Tune in the station once more.

There is distortion, and

clear reception cannot

be obtained even with a

good FM antenna.

There is multipath interference. Adjust the antenna position to eliminate

multipath interference.

—

No stereo effect even

with a stereo broadcast.

The TUNING MODE button is set to

the manual tuning mode.

Press TUNING MODE repeatedly until

“AUTO” lights up in the front panel display.

The desired station

cannot be tuned in with

the automatic tuning

method.

The signal is too weak. Use a high-quality directional FM antenna.

Use the manual tuning method.

Previously preset

stations can no longer

be tuned in.

The power cord has been disconnected

from the AC outlet or the power of this

unit has been turned off for more than

one week.

Preset the stations again.

The desired station

cannot be tuned in with

the automatic tuning

method.

The signal is weak or the antenna

connections are loose.

Tighten the AM loop antenna connections

and orient it for the best reception.

Use the manual tuning method.

There are continuous

crackling and hissing

noises.

Noise resulting from lightning,

fluorescent lamps, motors, thermostats

or other electrical equipment.

Move this unit further away from digital or

high-frequency equipment.

Use an outdoor antenna and a ground wire.

This will help somewhat, but it is difficult to

eliminate all noise.

—

There are buzzing and

whining noises.

There is interference from another

station.

A TV set is being used nearby. Move this unit away from the TV.

—

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Yamaha tx-497 Seite 21

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