[Coco] Coco 1 263-3001 just goes to 'ok' prompt when turned on
Bruce W. Calkins
brucewcalkins at charter.net
Fri Dec 6 19:19:22 EST 2013
That looks like common "D" or "E" board 64k upgrade wiring. A spare gate on
the 74LS02 is used for some sort of bank switch and the wires between the
memory chips cover the extra address line that is not present on the board.
Bruce W.
==================
----- Original Message -----
From: "Jeremy Michea"
> Hmmm. Seems to be happening again so I took it apart and took a picture of
> the board. Wires running everywhere. Not sure what was done here. Anyone
> see anything odd about this setup? Sorry about the flash from the camera.
> Hopefully it can be made out ok.
>
> http://i569.photobucket.com/albums/ss133/atarileaf/coco1board_zps9510d607.jpg
>
> --
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