Vizio V705X-H1 Main Board (715GA874-M1A-B00-004K) 905TXKSA700003. Part Type : Main Board. TV Model 1 : V705X-H1. Important Notes : 905TXKSA700003 is found on a sticker on the front of the board.. Genuine Vizio Main Board 905TXKSA700003. Check out my other items.