CoCo ATX Working Again (CoCo 2 mode)

Recently I broke my CoCo ATX or at least I thought I had broken it.
It turns out that there is some sort of timing issue where I have to keep reset pressed for a couple of seconds at start. Afterwards it works just fine.
See the previous videos on this project.

[@derekchristenson5711]

Well, progress, even if small!

[@rockyhill3]

Yes, glass is 1/2 full!

[@ToddMercer-b8b]

Remember, you did not break it. You're just figuring out ways that it doesn't work!

[@rockyhill3]

lol! Words to live by!

[@julianbrown1331]

Sounds like the SDC just needs more reset time, or to be plugged into a proper MPI device with its own power…

[@rockyhill3]

@@julianbrown1331 I think the MPI does suffer from that. However, the CoCo ATX behaves that way even without the SDC. I'm going to try and change with the capacitor in the reset circuit with one that has a higher capacitance to increase it's time to charge.

[@julianbrown1331]

@ or switch to a proper timer circuit….

[@rockyhill3]

@@julianbrown1331 that too.