@ozanballer you did not tell us if you get any error codes flashing from the power LED when you turn your TV on. From what you are describing I would take a look at the voltages from the power board to the main board as well as the power going to the backlight strips. Let us know what you are getting on those. The Sony SM is a bit spotty (typical) so we are relying on your measurements etc. My main suspect at this time is a faulty mainboard since you have neither sound nor video. Post some good pictures of your boards and wiring layout with your '''QUESTION'''. That way we can see what you see. [guide|21499]
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