Re: Swapping Lisa components

From: Ray Arachelian <ray_at_email.domain.hidden>
Date: Sat, 21 Feb 2009 16:37:07 -0500

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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