[Coco] Re: Color Computer 3 prototype

[jdaggett at gate.net]

Mark

If I counted correctly there are 13 of them on board. Most are 24 pin 
variety and suggests something like 20R8, 20L8 variety. I don't 
remember the early bipolar fuse PALs having much security. 

The Floppy disk contrroller probably is the 1773, same as the 
FD502.

james
 
On 21 Jan 2005 at 5:47, Mark Marlette wrote:

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From:           	Mark Marlette <mark at cloud9tech.com>
Subject:        	Re: [Coco] Re: Color Computer 3 prototype
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> 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.