No sound on our Sony Trinitron, just picture?

Just fixed this TV with same problem . There a small board in the set with the letter K on it . This is your problem . Your other problem it is hard to find as i did not find one but had a tv with this board in it and was able to fix for the customer who did not mind if we installed a used part to fix his tv cheap . The board # is 1-678-026-13 and is called the audio processor. You might want to call around to some local tv repair shops and see if they might have one laying around or in a tv that was not worth repairing. Also i removed this board from a set that was not the same model # as the set i installed it in . They use this board in other sets with the FS in the model number . Good luck

James
November 2008