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Museum of the Game® & International Arcade Museum® Forums
I always triple check myself when doing a cap kit but I finally missed one. I was doing the Williams 8784 cap kit and of all the caps to have a brain fart on when I was checking my work I got the axial one wrong (the big 18000uf one). I remember looking at it and thinking "yep that's right"... lol
I blew F4 and F5 when I turned it on and after a few seconds realized what I did and quickly turned it off. After replacing BR1, IC2 and the fuses, I got the board working again and producing clean voltages so crisis averted. I also put the old cap back in.
My question is does installing a cap backwards compromise it? Even if it was only for a few seconds? I have an ESR meter and the cap still seems to register good when I can get good contact on both legs but I wasn't sure if I should reinstall it or just use another fresh one. They aren't cheap so figured if it is still OK better to use it.