Trying to figure out why the +12 wire is at 18V on an apple II clone power supply.

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November 4, 2009 - 11:03pm
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dani9678
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Trying to figure out why the +12 wire is at 18V on an apple II clone power supply.
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Anybody here ever had a problem where the +12 lead is reading higher then it should? I replaced one of the swollen capacitors to see if that helped but it didn't. All of the other output power leads are in spec(-12v,5v,-5v). Anybody have any ideas?
Thanks,

Matt

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November 4, 2009 - 11:06pm
dani9678
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Pics of the power supply.

The two pics that I posted of the power supply are before I replaced the swollen capacitor. The bad capacitor is most noticeable in the second picture.

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January 15, 2013 - 2:45pm
dani9678
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Re: Pics of the power supply.

I replaced all capacitors but I still had a problem with excessive voltage. I replaced the board with a modern version and all is good.

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