Problems with Sony STR-DE1075 Receiver

[pestario]

I have been having problems with my Sony STR-DE1075. When watching DVD movies in quite or low noise times I can hear a clicking or buzzing coming from every speaker. This happens out of every output except for the regular Radio Tuner. I have tried different cables and inputs with the same results. I use optical cable to connect my DVD player to the Receiver. I have also tried a different DVD player with the same results. Any ideas what could cause this and how it could be fixed?

[brewtownska]

I'm just throwing out a question/suggestion to check.  Do you have all your components plugged into the same power supply or outlet.  If not, maybe a ground loop is occuring and introducing a large amount of noise into the system.  Maybe for the heck of it, try unplugging most of your other components...just use the essential Receiver, DVD, and cables to your TV.  If there's no problems there, start adding 1 component at a time to see if the problem comes back.

To everyone else who reads this...does it sound like a ground loop, or am I way off on this one?

[pestario]

Thanks for the advice. I do have them all plugged into a monster power strip . I will try your advice when I get home and post the results in case anyone else has a similar problem.

[Matt Heebner]

Definitely sounds like a ground loop hum. I think one or more of your components is not grounded correctly, or the outlet is not grounded properly. A short term solution is find out which one, then use a "cheater" plug, a 3 prong into 2 prong adaptor on the power cord, and that should eliminate any hum. This should only be used as a temporary solution as not having a electrical component properly grounded can be dangerous to yourself and your equipment .

Matt