Yamaha DXR8 Instrukcja obsługi - Strona 12
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Troubleshooting
Troubleshooting
Symptom
Power does not turn on.
Power suddenly went
off.
No sound.
Sound is interrupted
suddenly.
Sound howls
(feedback)
Each speaker sound
differs
(if multiple speakers
are used)
Sound is distorted
The microphone
volume is too low.
Low and high
frequency are
unbalanced.
*If any specific problem should persist, however, please contact your Yamaha dealer.
12
DXR15/DXR12/DXR10/DXR8/DXS15/DXS12 Owner's Manual
Possible causes
The power cord is not connected
properly.
The protection system has
operated, shutting down the power
supply.
The cable is not connected
properly.
The LINK MODE switch is set
incorrectly.
The protection system has
operated, muting the output.
A microphone is directed toward the
speaker.
Sound is amplified too much.
The setting of the HPF switch is not
appropriate.
Settings for each speaker differ.
Input volume is excessive.
Output volume is excessive.
The MIC/LINE switch is set to LINE.
The output limiter is active.
Possible solution
Connect the power cord properly.
Turn off the power, wait until the amplifier cools
down, and then turn on again.
Connect to the INPUT jack properly.
If you are using a single DXR, set the LINK
MODE switch to MONO.
Wait until the amplifier cools down. If the device
won't automatically reset itself, turn off the power,
and then on again.
Keep the speaker away from the area where the
microphone picks up sound.
Lower the volume of the input device and locate
the microphone more closely to the sound
source.
Set the HPF switch on 120Hz or 100Hz if you get
feedback in low frequency bands.
• (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.
• 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).
Use the LEVEL control to lower the output level to
a point no higher than where the LIMIT indicator
lights occasionally.
Set the MIC/LINE switch to the MIC position.
Lower the input level or the output level to a point
no higher than where the LIMIT indicator lights
occasionally.