hi, I have a samsung pn60f8500afxza plasma, that won't power on, just a blinking red standby light in the front. I've done some basic testing, with youtube videos help, but need more advice. Tested voltage at the Power Supply board, all voltages look okay except VS&VA. VS should be 210dcv but reads 11v and VA should be 60 but reads 0.03. They read at their proper voltage when first plugging in the unit, but continually decrease till they reach low voltages.I tested vs and va at their board test points and individual plugs throughout the unit The remaining voltages around the board are good and all grounds check good. Standby is 5.2 and PS-ON is 3.1 while unit is unplugged and 0.02 while unit is plugged in, is that normal?
I checked all y-board to y-scan drive board connections for resistance/ground continuity all seem good. I did find two pins on the X-board connections showing resistance/continuity to ground on the upper most x-board connection, could this be the problem or should that be a grounded posts within the connectors?
I was given this tv from a friend for no charge, so any help pointing me in the right direction or any helpful links for troubleshooting repairs would be greatly appreciated!