I measured the fet, outside pins are 0.691, inside are 0.559 and 2.8 or OL. Opposite polarity is 2.8 or OL.
I cannot get a reading on cap in circuit, should be 47uf if I read it correctly. Resistor looks and reads like 110k.
I tried to scope out some pins on and around uc3842, with ground to chassis, but first verified 0 ohms to neg output and no ac on dc output terminals. I probed -180V, +/-180 on large caps.
Then I saw the fan kicked a turn, decimals on the displays. I disconnected and cycled power and saw 666 on the display.
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