Re: 128D "switch mode" PSU info req

From: Colin J Thomson (
Date: 1999-10-26 22:05:30

Hi Nicolas,

On Mon, 25 Oct 1999, Nicolas Welte wrote:

> I own the C128/C128D service manual, but it doesn't cover the plastic
> 128D at all, only the 128DCR. So there is no PSU schematic in there.
> When I got a 128D from a fleamarket one year ago, I had to first
> disasseble it because the disk drive had a mechanical failure. After
> that I installed the drive power connector in a wrong way, so there was
> a shortcut between the 5V and 12V line. This caused the crowbar of the
> 5V part to shutdown the PS completely. While searching for the fault
> inside the PS, I started making my own schematic of it, but probably
> it's only half finished because I realized the real problem soon enough
> ;-)

Thanks for replying :) I may have to draw it out as well, but I have one
other friend trying for me :) I am not to well up on "switch mode" PSU's
:( so its something new for me to learn..


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