Additional Information; Troubleshooting - Yamaha YAS-70 Owner's Manual

ADDITIONAL INFORMATION

Troubleshooting

If there is any problem with this system, check the following items. If you cannot solve your problem with the following
remedies or if your problem was not listed below, turn off and unplug this system, and then consult the nearest authorized
Yamaha dealer or service center.
Problem
Power turns on but
immediately shuts off.
The speakers make no
sound.
Sound is too low on
one side.
Speaker channels other
than the front ones
make no sound.
The center speaker
channel makes no
sound.
The surround speaker
channels make no
sound.
The subwoofer makes
no sound.
Sound is poor (noisy).
This system does not
operate properly.
A digital or high-
frequency equipment
produces noises.
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Additional information
Cause
The power cable may be connected
improperly.
The speaker cable may be shorted.
This system may receive a strong
electrical shock such as from a lightening
bolt or excessive static electricity.
The volume may be set to minimum
level.
The mute function may be activated.
The input source or input setting may be
incorrect.
The cables may be connected
improperly.
The cables may be connected
improperly.
You may be listening to stereo sounds
without the sound field effect.
The volume of the center speaker
channel may be set to minimum level.
The volume of the surround speaker
channels may be set to minimum level.
The volume of the subwoofer channel
may be set to minimum level.
You may be listening to an audio source
that does not contain any low tone signal.
The speaker cable may be shorted.
This system may receive a strong
electrical shock, such as from a
lightening bolt or excessive static
electricity, or drop in power supply.
The system control cable may be
connected improperly.
This system may be placed close to the
digital equipment or high-frequency
equipment.
Solution
Make sure the power cable is plugged into the
outlet firmly.
Make sure all speaker cables are connected
properly.
Set this system to the standby mode, and then
disconnect the power cable. Wait for about 30
seconds, connect the power cable, and then turn
on this system.
Adjust the volume level.
Cancel the mute function.
Select the correct input source or input setting.
Make sure all cables are connected properly.
Make sure all cables are connected properly.
Press sound field program button to enable the
sound field effect.
Adjust the volume level of the center speaker
channel using test tones.
Increase the output level of SL/SR by pressing
.
Increase the output level of the virtual surround
speaker channel by pressing SUR. +.
Adjust the volume level of the subwoofer.
The subwoofer does not support signals outside
the specified range.
Make sure all cables are connected properly.
Set this system to the standby mode, and then
disconnect the power cable. Wait for about 30
seconds, connect the power cable, and then turn
on this system.
Connect the system cable firmly.
Place this system further away from such
equipment.
See
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