Page 1 of Sound Problem

Have just purchased a Sony DavS500 Player and also a 36" Sony widescreen TV. Everything looks fine but I can`t get sound from TV programmes to go through my DVD speakers. How do I connect the leads to make this happen and do I need to alter any settings.

Currently I have a yellow single lead going to a scart adapter in the back of the TV (nothing in the white or red holes on the scart) and also have a lead red and white from my tv to dvd video in line in 2.

I can get sound through the tv speakers when sky is on and get sound through my dvd speakers when i play a dvd, but not when the tv or sky is on.

Please help. If u need to ask any questions please feel free.

David