2 FLASHES OF RED LIGHT MEANS BAD SCREEN, NOT MAIN BOARD PROBLEM. This item may fit one model or all models described, please check part number. This is a Known Good board. The Tv it came from had a cracked LCD display panel. Since different versions of the same model might be using different parts. ANTI-SCAM POLICY: All of our products have special stickers on them. Adequate proof of compatibility when stating the item is defective then. We will take that as a deliberate attempt to deceive and manipulate the system. Buyers account will be reported for fraud. We ask questions for help with troubleshooting in attempt to help you fix your TV. Please be patient with us.