Yamaha 500 YMC-700/500 Owners Manual - Page 47

Problem, Cause, Remedy, This unit does

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Troubleshooting Problem Cause Remedy Only the center speaker outputs substantial sound. When playing a monaural source with certain sound field programs, the source signal may be directed to the center channel, and the front and surround speakers only output effect sounds. Select another DSP Program. No sound is heard from the center speaker. "Center" at "Speaker Configuration" is set Set "Center" to "Small" or "Large". to "None". No sound is heard from the surround speakers. "Surround" at "Speaker Configuration" is Set "Surround" to "Small" or "Large". set to "None". "Off" or "Music Enhancer" is selected as the DSP program and the source being played back contains no surround sound. Select another DSP Program. A monaural source is being played back, Select another DSP Program. and a certain DSP Program is selected. No sound is heard from the subwoofer. "Bass Out" in "Speaker Configuration" is Set "Bass Out" to "Subwoofer" or "Both". set to "Front". The source does not contain lowfrequency signals. The audio input sources cannot be played in the desired digital audio signal format. The connected component is not set to output the desired digital audio signals. Make an appropriate setting following the owner's manual of your component. A humming sound is Incorrect cable connections. heard. Connect the audio cables firmly. If the problem persists, the cables may be defective. This unit does not operate properly. The internal microcomputer has been frozen by an external electric shock (such as lightning or excessive static electricity) or by a power supply with low voltage. Disconnect the power cable from the AC wall outlet, then plug it in again after about 30 seconds. There is noise interference from digital or radio frequency equipment. This unit is too close to the digital or highfrequency equipment. Move this unit further away from such equipment. The picture is disturbed. The video source uses scrambled or encoded signals to prevent dubbing. This unit suddenly enters the standby mode. The internal temperature is too high and the overheat protection circuitry has been activated. Wait about 1 hour for this unit to cool down, then turn it back on. See page 19 37 37 19 19 38 - - - - - 46 En

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46
En
Troubleshooting
Only the center
speaker outputs
substantial sound.
When playing a monaural source with
certain sound field programs, the source
signal may be directed to the center
channel, and the front and surround
speakers only output effect sounds.
Select another DSP Program.
19
No sound is heard
from the center
speaker.
“Center” at “Speaker Configuration” is set
to “None”.
Set “Center” to “Small” or “Large”.
37
No sound is heard
from the surround
speakers.
“Surround” at “Speaker Configuration” is
set to “None”.
Set “Surround” to “Small” or “Large”.
37
“Off” or “Music Enhancer” is selected as
the DSP program and the source being
played back contains no surround sound.
Select another DSP Program.
19
A monaural source is being played back,
and a certain DSP Program is selected.
Select another DSP Program.
19
No sound is heard
from the subwoofer.
“Bass Out” in “Speaker Configuration” is
set to “Front”.
Set “Bass Out” to “Subwoofer” or “Both”.
38
The source does not contain low-
frequency signals.
The audio input
sources cannot be
played in the desired
digital audio signal
format.
The connected component is not set to
output the desired digital audio signals.
Make an appropriate setting following the owner’s
manual of your component.
—
A humming sound is
heard.
Incorrect cable connections.
Connect the audio cables firmly. If the problem
persists, the cables may be defective.
—
This unit does not
operate properly.
The internal microcomputer has been
frozen by an external electric shock (such
as lightning or excessive static electricity)
or by a power supply with low voltage.
Disconnect the power cable from the AC wall outlet,
then plug it in again after about 30 seconds.
—
There is noise
interference from
digital or radio
frequency equipment.
This unit is too close to the digital or high-
frequency equipment.
Move this unit further away from such equipment.
—
The picture is
disturbed.
The video source uses scrambled or
encoded signals to prevent dubbing.
This unit suddenly
enters the standby
mode.
The internal temperature is too high and
the overheat protection circuitry has been
activated.
Wait about 1 hour for this unit to cool down, then turn
it back on.
—
Problem
Cause
Remedy
See
page