Yamaha DXR15 Manuel du propriétaire télécharger pdf (Page 12)

12 DXR15/DXR12/DXR10/DXR8/DXS15/DXS12 Owner’s Manual

Troubleshooting

*If any specific problem should persist, however, please contact your Yamaha dealer.

Symptom Possible causes Possible solution

Power does not turn on.

The power cord is not connected

properly.

Connect the power cord properly.

Power suddenly went

off.

The protection system has

operated, shutting down the power

supply.

Turn off the power, wait until the amplifier cools

down, and then turn on again.

No sound.

The cable is not connected

properly.

Connect to the INPUT jack properly.

The LINK MODE switch is set

incorrectly.

If you are using a single DXR, set the LINK

MODE switch to MONO.

Sound is interrupted

suddenly.

The protection system has

operated, muting the output.

Wait until the amplifier cools down. If the device

won’t automatically reset itself, turn off the power,

and then on again.

Sound howls

(feedback)

A microphone is directed toward the

speaker.

Keep the speaker away from the area where the

microphone picks up sound.

Sound is amplified too much.

Lower the volume of the input device and locate

the microphone more closely to the sound

source.

The setting of the HPF switch is not

appropriate.

Set the HPF switch on 120Hz or 100Hz if you get

feedback in low frequency bands.

Each speaker sound

differs

(if multiple speakers

are used)

Settings for each speaker differ.

• (DXR series) Set the HPF and D-CONTOUR

switches of each speaker to the same

positions.

• (DXS series) Set the POLARITY switch, the LPF

switch, and D-XSUB switch of each speaker to

the same position.

Sound is distorted

Input volume is excessive.

• Lower the volume of the input device to a point

no higher than where the LIMIT indicator lights

occasionally.

• If sound continues to be distorted even if you

turn down the volume to the minimum, set the

MIC/LINE switch to the LINE position (if the

switch is set to MIC).

Output volume is excessive.

Use the LEVEL control to lower the output level to

a point no higher than where the LIMIT indicator

lights occasionally.

The microphone

volume is too low.

The MIC/LINE switch is set to LINE. Set the MIC/LINE switch to the MIC position.

Low and high

frequency are

unbalanced.

The output limiter is active.

Lower the input level or the output level to a point

no higher than where the LIMIT indicator lights

occasionally.

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Yamaha DXR15 Manuel du propriétaire Page 12

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