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Troubleshooting
Refer to the chart below if the unit does not function properly. If the problem you are experiencing is not
listed, or if the instructions fail to help you resolve the problem, disconnect the power cord and contact your
authorized Yamaha dealer or service center.
Problem Cause Remedy
Power is not supplied even though the
POWER switch is set to the ON position.
The power plug is not securely
connected.
Turn the power switch OFF, then
connect the power plug securely.
No sound.
The VOLUME control is set to 0. Turn the VOLUME control to the
right (clockwise).
A subwoofer cable is not connected
securely.
Connect a subwoofer cable securely.
Sound level is too low.
You are playing a sound source that
includes inadequate bass frequencies.
Play a sound source that includes
more bass frequencies.
The sound level has been diminished
by standing waves.
Reposition the subwoofer, or break
up the parallel wall surface by
placing bookshelves or other large
objects along the wall.
The input signal is too small Turn up the volume.