Advice/Suggestions for repairing Apple III power supply
geoffr at zipcon.net
Mon Jul 23 13:58:17 CDT 2007
Quoting Josh Dersch <derschjo at msu.edu>:
> Hi all --
> Picked up an Apple III this weekend in non-working condition, and I
> suspect the power supply is at fault.
> Symptoms are: On power up, a rapid clicking noise is emitted from the
> power supply (maybe 4Hz or so), and the power LED on the system's
> motherboard pulses at the same rate. Obviously I haven't run it for
> more than a few seconds like this :).
Last time I had a power-supply that was clicking there was a bad transistor and
a couple of failed caps...
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