bit-preserve
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Project for capturing vintage, classic, aka old computer schematics in KiCad.
Added Schematic and PCB for the 26-3134A/26-3136A CoCo 2 motherboards and updated a couple of README.md for readability and to reflect this addition
Don't know if you'd want to clone some or all, or just put a link to it (at the risk that the repo goes away someday): https://github.com/sporniket/retro-computer-clean-schematics/issues/52#issuecomment-983492590
Would be very nice to have a reproduction motherboard for the Model IV as well.
Pin 16 is both O7 and ~CE on the symbol for UE12, 2716. Should be: * O7 - pin 16 * ~CE - pin 18
DC Blocking caps between the video DAC and NTSC/PAL circuit are missing
symbol and associated schematic may be wrong. Make sure Pin 2 on MC1377 is connected to COMP/SYNC signal.
Schematic symbol doesn't match either the 256k or 1MB schematic.
Not all IIgs symbols are in the "Apple IIgs symbols" library. Some are in "IIgs-Schematic Rescue" and there are multiple rescue folders.
On the MEGA-II schematic page, Pin 37 is listed as RCMEN. After extremely careful consideration, it appears that might actually be "ROMEN" as in "ROM ENABLE."
Do you think it would be a good idea to dedicate a section of the README or perhaps the wiki for the repository where status,progress, pictures, and videos of a...