short circuit on logic board, only two diagnostic lights now
i've got this late 2015 21.5" 4K iMac on my bench. I had it open and was doing some work, and my son knocked my SPI programmer and a bunch of test leads onto the powered up logic board.
there was a brief crackle and a little wisp of smoke.
i had the iMac powered on, with three of the four diag lights on. i expected the fourth off as i had the LCD panel removed. now i'm only getting two green lights, and no display either with the LCD panel back on or via external monitor.
i have attempted SMC reset.
where can i start?
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on a side note, when i power off the iMac via the power button, it will turn back on once. if i force power down again, it will stay off
- de Ronnoc Nailli