Yamaha DXR12, Руководство пользователя

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12 DXR15/DXR12/DXR10/DXR8/DXS15/DXS12 Owner’s Manual
Troubleshootin g
Troubleshootin g
*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.