Yamaha NX-B55 Manuel télécharger pdf (Page 13)

8 En

Refer to the table below if the unit does not operate properly. If the problem you are experiencing is not listed below, or if the instruction does not help, turn

off the unit, disconnect the power cable, and contact the nearest authorized Yamaha dealer or service center.

■ General

Troubleshooting

Symptoms Causes Remedies

This unit is not turned on. The AC adaptor is disconnected from the wall outlet or

12V (DC 12V).

Connect the AC adaptor to the wall outlet or 12V

(DC 12V) correctly.

The p (power) is not turned on. Turn on the p (power). (The indicator lights up.)

No sound is output from

either of the speakers, or

the sound is too quiet.

This unit and the other device are not connected correctly. Make sure that this unit and the other device are connected

correctly.

Connections are faulty (or the connections are incomplete). Check that the connections are made correctly. Or connect

this unit to the Bluetooth device, again.

This unit’s volume is set to too low. Turn the VOL (volume) control to the right to increase the

volume.

The sound from the connected device is too quiet. Increase the volume of the connected device.

Headphones are connected. (No sound comes from the

speakers when headphones are connected.)

Disconnect the headphones from this unit.

The AUTO STANDBY switch at the rear is set to INIT.. Set the AUTO STANDBY switch at the rear to ON or OFF,

again (ON in default setting. ☞ page 3).

The sound is distorted. The sound is too loud. Lower the volume of the connected device.

Noise is heard. Connections are faulty (or the connections are incomplete). Check that the connections are made correctly.

The output connector has a bad connection. Check that the stereo mini jack and stereo mini plug cable

are not dirty. If they are dirty, clean them.

External noise is picked up.

Make sure that devices which emit electromagnetic waves,

such as mobile phones, wireless appliances, microwaves or

inverter lighting equipment, are not near this unit.

Power-supply noise is picked up. Change the source of power supply by directly connecting

the AC adaptor to the wall outlet, etc.

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Yamaha NX-B55 Manuel Page 13

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