Additional Information; Troubleshooting - Yamaha YHT-S400 Owner's Manual

ADDITIONAL INFORMATION

Troubleshooting

If there is any problem with the system, check the following items. If you cannot solve a problem with the
following remedies, or if the problem is not listed below, turn off and unplug the system, and then consult your
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 subwoofer makes
no sound.
The volume level
decreases without any
operation.
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.
A speaker cable may be shorted.
This system may have received 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.
"HDMI AUDIO" in the setup menu is
set to "TV".
The cables may be connected
improperly.
You may be listening to stereo sounds
without surround mode.
"SUR. LEVEL" in the setup menu is
set to minimum level.
The volume of the subwoofer channel
may be set to minimum level.
The source does not contain low-
frequency signals.
You turned off the system when the
volume level was over 70.
A 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 may be placed close to
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 standby mode, and then
disconnect the power cable. Wait for about
30 seconds, connect the power cable, and
then turn the system on again.
Adjust the volume level.
Cancel the mute function.
Select the correct input source or input
setting.
Make sure all cables are connected
properly.
Set "HDMI AUDIO" in the setup menu to
"AMP".
Make sure all cables are connected
properly.
Press a surround mode button to enable the
sound field effect.
Adjust "SUR. LEVEL" in the setup menu.
Adjust the volume level of the subwoofer.
The volume level is automatically set to 70
the next time you turn on the system to
protect the speakers.
Make sure all cables are connected
properly.
Set this system to standby mode, and then
disconnect the power cable. Wait for about
30 seconds, connect the power cable, and
then turn on this system.
Place this system farther away from such
equipment.
See
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