Buzz in DS7200 system

Marek Stepien
Marek Stepien Posts: 1
edited November 2009 in Troubleshooting
I received a loud buzz from all the speakers. It started by itself when the system was not used. It came from all speakers, and I thing the woofer as well.

The only thing that helps is to turn off or unpower the ampliphier (the woofer). Disconnecting the receiver does not help.

It happpened a month ago, and the system was not used. Yesterday
I had some time and disconnected all speakers, moved the woofer around
and the probem disapear. Together with my wife we were listening to
a CD and we were happy. However, when I came back from work today,
the sytem was buzzing again.

It looks that this is a common problem of this system, since I found a similar
issue described here: http://www.avsforum.com/avs-vb/showthread.php?t=1188982

What do I need to repaire it?