I HAVE A SAMSUNG MODEL PN51F8500 THAT NEEDS A POWER BOARD P/N BN4400619A,I LOOKED EVERYWHERE FOR IT,ARE THERE ANY OTHER POSSIBLITIES?

Remove the back cover, test the panel and power supply board by disconnecting the cable from main board. If unit's backlight comes on the main board needs replacing. If the backlight does not, the power board needs replacing

the supply board
but if your antenna was plug in then the main board would be faulty

power board..........cheap on ebay.............

cheers

The power supply board probably needs to be replaced. Sounds like a loose solder joint on the board

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The set has a power supply circuit board INSIDE that needs to be looked at (not the power cord itself) and if bad replaced.

Most of these issues can be solved by resoldering the convergence ICs. Resolder the convergence ICs first and if it still doesn't work then look for a board. I bet you fix it...

I have most NEC plasma boards and know the procedure to determine which board is bad.

try www.theprinterworks.com or www.percisionroller.com and type in your type and model printer then search all parts

the g1 board is your issue. 6 blinks means there is no or low b+ coming from the g1 board.