I have a rca lcd the picture quit on it but do have sound found that the ribbon that works the picture melted but did not harm the circuit board I am look ing for the part number and a place to buy the ribbon to fix it
Model number L49FHD41YX8

Found this RCA phone number for customer service for you, they should be able to give you a part number an the cost. If not they should direction to a authorized dealer in your area. Hope this was helpful! :)))