(Topic ID: 286766)

Need Help!! System 11 Power Supply blows F1 F5 and F6 on power on

By JT-Pinball

10 months ago


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  • Latest reply 10 months ago by JT-Pinball
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#2 10 months ago

as silly as the following sounds.....you did cut the legs off the caps....so they aren't touching the ground plane?

can only suggest, which you have probably done anyway, go over the capacitors and ensure they are in the correct way around.

unlikely if it was playing fine, but maybe BR1 has shorted internally?

#29 10 months ago

So is the power supply all done and testing good? components changed and headers put in correctly?

maybe try one component at a time to get the displays back and check voltages as you go?

if replacing the 6821 PIA i'd personally socket it, and make sure it's in the correct way, notch wise.

and when testing the displays, just have one plugged in, only a suggestion.

on a side note, if you get fed up with the gas display issues and if your keen and competent with soldering maybe try a Wolffpac display Kit ?

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