[Coco] Re: Color Computer 3 prototype

[Mark Marlette]

At 02:10 AM 1/21/2005, you wrote:

Al,

Pray it is a CoCo3 discrete!

Check with Mark H. and see if he recalls any documentation. Boisy do you 
recall?? Boisy mentioned to me that this board has VERY touchy operation. 
Sounds like Curtis's TC-9 from FHL that I upgraded for him. Major 
electrical improvements placed in that machine for smooth operation.

The board has numerous MMC IC which indicate to me as PALs. If the security 
fuses are not blown the PALS should be able to me disassembled(JEDEC) to 
source. Hard to tell with all the stickers on the board. I also noted to 
Allen of theWD17xx chip.

Not so sure about another list. I replied to you several times privately of 
views of the board. I would rather see this type of traffic here rather 
than Ebay threads.....anyone object? Seems CoCo related?

Mark


>On Jan 21, 2005, at 12:14 AM, Nickolas Marentes wrote:
>
>>The board looks bid but I would have thought that to construct the GIME chip
>>out of discrete components would take up another board similar in size.
>>Maybe they used a lot of programmable PAL's?
>
>...for those of you just joining us...  I really need to set up a list 
>just for a few of us to disect this thing -- alot of great info has come 
>to me via you, Mark M, and a few others -- and it would be nice to get 
>everyone talking about it.
>
>So far, it seems to use a bunch of PALs and contain a 1773.  WHO 
>KNOWS!  I'll take it home with me next week, most likely, or maybe tomorrow.
>What can I do?
>
>                 -- Allen
>
>
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