Now, electronical part with diods :

..nothing very hard to do, follow steps on plan given before.
And we finalize putting back cache on plugs :

But don't do like me, no not join all wires on COM port, and forget to insert caches before...
You'll have to unjoin all wires & pins !

And here is the final result, not very professional, but this is not our goal, we are not here for beauty result !!!

Next step, testing !

== GENESIS 2 PC ADAPTER By 2004 ==