Thanks for this information. I was looking for the programming / user guide on how to use the color daughterboard. Without this information it's essentially useless.There's a schematic about midway through the PDF Adrian posted at https://archive.org/details/franklin-service-1-of-2/, and I posted the contents of the PROM in this thread.
The SAMS ComputerFact (available for sale via their website) is reasonably useful for troubleshooting as well.
If you don't need color, though, you might be better off converting the ACE1000 to monochrome -- the video becomes rock-solid, and the color artifacting that was present even in text mode with that (expletive deleted) daughterboard is gone. I've written up the procedure at https://www.disavowed.jp/?p=288.
After the conversion, the ACE1000 can be further converted to Apple-style color generation by adding a choke and capacitor per the instructions in Adrian's PDF. I haven't gotten around to writing up that procedure, as I'm happy with monochrome, but it's straightforward.
Oh ... sorry, I have never seen documentation on the special Franklin graphics mode provided by the daughterboard.
From the schematic, it appears that it's activated by putting the machine into GR; that enables the special glyphs in the high half of the chargen 2532 ROM. Beyond that, ENOCLUE.
Thanks for this information. It makes me wonder if there's any real value add to this board.I don't think so; the Franklin AppleSoft ROM is identical to Apple's.
I think the way it was supposed to work is that the program would switch into GR mode and just print characters, which would be in the alternate charset in the top half of the chargen 2532. Maybe, just a WAG based on the schematic. There was a former Franklin employee lurking on the forum a few years back; if he's still around, perhaps he'll chime in.
I personally don't think so; it exists only to work around the Apple patent on color signal generation.Thanks for this information. It makes me wonder if there's any real value add to this board.