[Coco] MPI voltage problem

[Bob Devries]

Hi Luis,

It is likely that there's a fault on the PCB of the MPI; either a leaky or 
otherwise failing electrolytic capacitor, or a bad solder joint. Have a good 
look at both sides of the PCB and re-solder any suspect joints.

Regards, Bob Devries
Dalby, QLD, Australia

----- Original Message ----- 
From: "Luis Antoniosi (CoCoDemus)" <retrocanada76 at gmail.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Sunday, May 12, 2013 3:32 PM
Subject: [Coco] MPI voltage problem


> Hi, it turns out that i found my issues with the MPI. I found out that
> after running for a while the +5V pin drops to around +1V or less.
>
> The +12V/-12V seems to be ok all the time.
>
> What could it be ? Should I replace the PSU ? Can I use a PSU found on
> digikey or any other local store ? What PSU should be ?
>
> Or could it be just a transistor or bad capacitor ? I can't find the
> problem alone :/
>
> Thxs,
>
> Luis
>
> -- 
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>
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