Hey there. Have this samsung plasma 51" Tested power supply getting standby and ps on power. Getting VA and VS until i connect ribbon going to y-main, then it drops. Isolated everything to that connections. This is a brand new y-main I had just ordered. Don't know if I got a bad one. When everything is connected t.v. will flash when it initially comes on. No sound or samsung startup. Don't know if I have just gotten a bad panel. Thanks in advance.