NOTE: IF THERE IS ANY CONFUSION AND /OR LACK OF UNDERSTANDING DETERMINE THE SYMPTOM. PLEASE CONSULT WITH OUR SERVICE TECHNICIAN FOR ADVICE. ALL BOARD are tested by certified Tech and guaranteed 100% to work. Please be sure that the Part Number and picture on your main board are EXACTLY. There are possibly several different boards for each model TV. We ensure all buyers get a positive experience. Within 14 days from the date received. Communication is the KEY to helping us provide customers with the BEST EXPERIENCE.