SONY 40" TV KDL-40R473A POWER SUPPLY PSU BOARD All our TV parts are tested by our experienced engineers to ensure you get a working part. Please note all of our parts are security marked as to be identified by us. Please make sure the board looks the same in the picture as your old damaged/faulty board to make sure you buy the correct part as returns will not be accepted for incorrect or wrong item purchased We do not offer a service to supply parts for the buyer’s process of elimination to determine the problem they are experiencing. These types of purchases will not be tolerated as damage is likely to be caused to our products being used in this manner and is against or any other purchase policies and buyers will be reported for this type of purchase The TV component must be installed by a qualified technician therefore i accept no responsibility if damage occurs to the item due to lack of knowledge and experience on the buyers part c