Hi! Im looking for a convergence board for a 9 years old samsung tantus pch521r projection tv. Code number on the board: aa41-10479R-04 (maybe this is not the origional convergence board , but this tv worked fine in the past few month), chassis number : spt51A/apt51B There is a picture from the panel front side : http://www.pc4you.us/sam/Front.JPG There is a pictures from the panel back side : http://www.pc4you.us/sam/Back.JPG
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there is "audio out" jacks on back side of television. connect it to an amplifier or other tv & hear if sound is comming. if sound is comming then audio amplifier is defective in your tv. if sound is not comming then audio processor may be defective.
you need to general service the whole unit. this will include re-soldering and changing some defective components from the board, which has been damaged through using from past years. my advice is to have a quotation from service tech and then think about repairing it..if it is better to buy a new one..