Technika LCD22DVDID-208 - Sound buzz at min volume.

[Turnip]

Hi Folks,

Odd one this - Cust said she had dropped the set on to the bed when it started to buzz from the speakers at minimum volume. Had the thought that the PS doesn't rectify 50hz, so must be the main board.

Got one and it buzzes much as before. Thought then to replace the PS caps, where the buzz is reduced but now seems to depend on picture content - Blank screen - silent, but with picture - buzz.

While ago would have re-earthed the 'Dagging' - Guess can't be duff tubes as they go all the while. Noticed with the new MB the buzz causes sound distortion, where it didn't before.

Any thoughts ? - Chris.