Okay, I assembled a new PCB. I left off U3 and U4. I cut the traces as indicated on your revised schematic, and added the jumper wire from pin 1 of U1 to SEL on the output. J2, J3, J5, and J6 all set to pins 1 and 2 closed.
Everything working perfectly in 2 button mode. I can control the Everdrive menu and make the morally upstanding women of Strip Fighter move around and fight.
:applaud: :applaud:
So now what?
EDIT:
(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=164992.0;attach=394639)(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=164992.0;attach=394639)
WOO HOO!
(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=164992.0;attach=394639)(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=164992.0;attach=394639)
Installed sockets for U3 and U4, figured what the heck. First I installed U4 - the SN74HC163N. Games would recognize that I was toggling between 2 and 6 button mode but obviously weren't getting any six button inputs. Then I stuck in U3.
With the cuts to the traces and the jumper wires added, I am happy to report I am 100% working in both 2 and 6 button mode in SF2 and Strip Fighter. Everdrive navigation working in either mode. I can boot up to the CD menu and not have it jam select inputs over and over. Rondo doesn't control correctly in six button mode, but he's not getting slammed with random inputs. Plays fine in 2 button. (I doubt very highly that game was programmed to work correctly with a six button controller, many of them aren't)
I will go back and double check my work on the previous 2 PCBs... or just bury them in a lonely field for closure and move on with life.
Many thanks to you both, pdco_arcade and mourix. If I can make one more ask... would either of you be able to revise the PCB layout with the alteration to the Select / SEL lines so I can get it printed without needing jumper wires and cut traces? (It would also be nice if J2/J3 and J5/J6 were slightly spread further apart, I’m having to shave my JST connectors..)
:cheers: