Constant, loud humming noise from all speakers

SOURCE: Sony Bravia XBR-2 32-inch LCD with popping noise problem

Has anyone heard of something like this where the cable box/service is causing popping sounds? yes & it is common problem. And is this something I should be concerned about causing damage to the TV's speakers? not at all. The Sony tech-support representative (over the phone) diagnosed it further to a problem not with the TV but with the cable box/service because there were no popping sounds when I played a DVD on my Playstation 2 that is attached to the TV. they are right that your problem is not due to tv. it is due to cable box/service? yes but not defective it reqires to change the way you have connected tv to cable.please call tech to get it connected in such a way so that you do not get popping sound when you you put off cable box.

Posted on Sep 24, 2007

SOURCE: Sony CMT CP1 Right hand speaker output very noisy, humming, crackling

It sounds to me like you both are having a problem with a capacitor going bad. some capacitors act as a noise filter and it sounds like you both have a bad one. If you are any good with a volt-ohm meter that reads capacitors you should check them to make sure they are at their proper values which will be posted on the capacitor. then replace it. if you dont know how to use a v-o meter then take it to a shop and have them replace it

Posted on Jan 23, 2008

SOURCE: Sony flat screen

turn off the tv

Posted on Jun 05, 2008

SOURCE: STR--DG910: no rear speaker sound, no center speaker sound

if you confirmed all connection repeat your speaker setup.

Posted on Aug 02, 2008

SOURCE: No sound from rear speakers during test tone usng Sony STR-DE475

I had this problem last night.

To solve it, you can reset the amp by:

1) Put the receiver on stand-by
2) Hold down "MODE" button and press on button
3) "S.F. CLR" appears in the display and surround is back on.


Good luck

Dr Gardner

Posted on Feb 10, 2009