[Coco] Orchestra 90/cc to Stereo Composer Conversion http://6809assemblylanguage.fortunecity.com/ORCH90CC-2-STEREOCOMPOSER.html

[Joel Ewy]

coco at yourdvd.net wrote:
> Joel (and the rest of the gang):
>
> Since I didn't have my schematic handy for the modification that I made,
> I have recreated it and provided three different schematics that should
> perform the same function. I think I prefer MOD 3. In order to use the
> Schematic Files, you'll need to download: http://www.pcb123.com/ which
> is a free schematic and board layout software. I have switched from
> using Eagle and other Layout editors because they are expensive and I
> wanted to use something that everyone on the list could afford. You
> can't beat free and it does a wonderful job. Also, for FPGA/CPLD etc.
> work, I have switched to using:
> http://www.xilinx.com/ise/logic_design_prod/webpack.htm which is also
> free and AMAZING! The page states: ISE WebPACK
> ISE WebPACK is the industry´s only FREE, fully featured front-to-back
> FPGA design solution for both Windows and Linux.
>
>
> Also, I have included the schematics as PDF files. Please note that you
> should verify the logic, as I just threw these together 
Thanks for sharing this info, Robert.
> (I am very
> tired and I also had to leave work because of the excruciating pain
> that I am in due to gall bladder problems - the thing has to be removed
> tomorrow, so pain may have caused me to err.)
>
>   
I wish you a speedy recovery!
> Let me know if you find the circuitry to be in error, and I will fix it.
>
> I have also created a modification that allows the Orchestra-90/cc to
> become a stereo composer and remain an Orchestra-90/cc. It will be
> posted soon. I simply modified the address decoder to respond to both
> sets of addresses. Whilst I am out of work, I will be looking for my
> schematics and posting them.
>
> I will soon post my schematic for the 8-slot Multi-Pak Interface that I
> originally designed in '94, but I am going to modify it so that the
> upper bits function as Paul Barton mentions on his page.
>
>   
Looking forward to this stuff as well.

JCE
> Regards - Robert
> DOWNLOAD HERE:
> http://6809assemblylanguage.fortunecity.com/ORCH90CC-2-STEREOCOMPOSER.html
>
>
>
>
>
> http://6809assemblylanguage.fortunecity.com/ORCH90CC-2-STEREOCOMPOSER.html
>
>   
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