Hi all, I have an old NES that was working great until recently. We had a nearby lightning strike and I'm hoping to fix whatever might have been damaged on the board.
When I apply 9v DC (my bench supply doesn't do AC so it's easier to test) I get a big draw, like 5a.
I have a resistor labeled R18 that looks damaged.
This board has four separate diodes as opposed to a one-piece rectifier. There is what looks to be a white insulating material on the legs of the diodes, and the center two are discolored.
Does anyone have any tips for the next steps? I didn't get to probing the voltage because with such a high draw, I worried about further damage.
When I apply 9v DC (my bench supply doesn't do AC so it's easier to test) I get a big draw, like 5a.
I have a resistor labeled R18 that looks damaged.
This board has four separate diodes as opposed to a one-piece rectifier. There is what looks to be a white insulating material on the legs of the diodes, and the center two are discolored.
Does anyone have any tips for the next steps? I didn't get to probing the voltage because with such a high draw, I worried about further damage.
Statistics: Posted by jaredyates — Thu Jul 25, 2024 10:32 am — Replies 3 — Views 117