I NEED HELP WITH A BIG SCREEN PHILIPS, IT START FOR TWO SECONDS AND SHUT DOWN BY SELF.I'M CHECKED POWER SUPPLY ALSO THE HORIZONTAL OUT PUT(FLY BACK TRANSISTOR AND CONVERGENCE IC'S TOO)THESE ARE GOOD CONDITION. SOMEBODY CAN HELP ME.APPRECIATE ANY HELP OR TIP FOR. THE CHASSIS NUMBER IS DPTV310
MODEL NUMBER 55PP935217
