Sir ZedsDeadd . . . . .
All right now . . . . with R802's value being nailed down EXACTLY.
And since you could / did not come back with . . . the . . .or any . . .part numbering on the fractured power FET . . .don't you now think that it is due time that you should reveal this circuit boards numbering identifier, as well as its brand of manufacture and the sets model number.
The most to be seen from the snippet view of this board, is that it relates to a power supply board, with its related / assigned 800 series of device numbers.
The subject R802 resistor should be in the POWER FET source to ground and be having a current sense sampling voltage being fed back to the PWM controller.
the instant that the junction on the POWER FET failed, it DUMPED
the whole ~340VDC at 100'ish milliamperes (that's being ~34W . . .babycakes !
) from the raw DC supply, right into this puny little 2W resistor.
So, you can now see the resultant double ended sparking /blasting out of that resistor, and expect that the now fused together FET D-G-S junction blob has ALSO
sent a HEALTHY
/ 340V destructive voltage back down the gate feed path into the FET's controller IC.
This boards use of a Cy prefix for HV ceramic caps, relates to a similar assignment used by Samsungs.
Is this being your first attempt of repairing a board . . . instead of just your mass pulling of donor boards . . . . . ?
73's de Edd . . . . . .