James MacPhail wrote:
> The clicking PSU is either a short circuit or its voltage set too high.
>
I've had that happen with one of my power supplies, and replacing the
dead capacitors was the fix.
But of course, the one with the I/O board battery leaks will have other
issues. :-)
Peter, if you happen to have a spare I/O board, that might help. If you do and there's no damage around the COPS421 chip, you should at least save that chip - VIAs and the Z8530 are far less rare, but the COP421 are very difficult to find replacements for as the only sources will be other Lisa I/O boards. Obviously try to repair the board as best as you can.
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