[Coco] eBay MPI Heads Up (and how damage can be done)

[Mathieu Chouinard]

Merci :)

On Fri, May 29, 2015 at 9:01 PM, Stephen H. Fischer
<SFischer1 at mindspring.com> wrote:
> Then he goes on to say no damage will be done and suggests a very specific chips to replace the ones related to the MPI upgrade to reduce the possibility of damage. MPI = Multiple Problem Issues.
>
> Designers of new MPI replacements need to read the Good Doctors words three times at least and the previous words he has written (Issue in text.)
>
> Y-Cable builders should find the article in March 1992. I got a lot more hits on "Y Cable" finding that one.
>
> SHF
>
> ----- Original Message -----
> From: "Stephen H. Fischer" <SFischer1 at Mindspring.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Friday, May 29, 2015 5:13 PM
> Subject: Re: [Coco] eBay MPI Heads Up (and how damage can be done)
>
>
>> The Good mans work was found quickly using "Rainbow text searchable index v1.pdf".
>>
>> Goodman, Marty. Upgrade Your Multi-Pak"; October 1991, p.052.
>> Using the MPI with the CoCo 3.
>>
>> Marty explains why the upgrade is MANDATORY to use a MPI with a CoCo 3 and how damage can be done.
>>
>> SHF
>>
>> ----- Original Message -----
>> From: "K. Pruitt" <pruittk at roadrunner.com>
>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
>> Sent: Friday, May 29, 2015 4:30 PM
>> Subject: Re: [Coco] eBay MPI Heads Up
>>
>>
>>> Here's a picture of the innards.
>>>
>>> https://www.dropbox.com/s/i9xwgxtwwibbs6l/DSC01405.JPG?oref=e
>>>
>>> As suspected, it contains a mod to allow it to be used with a Coco 1/2 or a
>>> Coco 3.
>>>
>>> The board was apparently manufactured by Marty Goodman as it has his name on
>>> the board. Some of the traces show signs of repair.  I'll take a loop to it
>>> later prior to testing. I have no clue as to which position of the switch is
>>> which. But there may be detailed information about Marty's mod on the
>>> Internet. I seem to recall seeing it somewhere. If not on the 'net then in
>>> Rainbow.
>>>
>>> Thanks Bill.  Much appreciated.
>>>
>>>
>>> ----- Original Message -----
>>> From: "Bill"
>>> Sent: Friday, May 15, 2015 4:17 AM
>>> Subject: Re: [Coco] eBay MPI Heads Up
>>>
>>>
>>>> I'm the seller. Unfortunately, I can't claim anything, except that it's
>>>> grey. I got the MPI in a lot purchase a few months ago, but my health will
>>>> not let me continue much research into it, so I am selling the entire lot
>>>> of stuff. I only responded because I saw mention of another one, and
>>>> thought mine would be less expensive.
>>>>
>>>> Who knows, it might be VERY valuable. :)
>>>>
>>
>>
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>>
>
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