George & John: I just tried my loco with just the serial data wire on pin 1 of connector J4 and it was a no-go; no surprise there. Nothing like smoking a c-note to make your day....
Anyway, I have a question about the 5V regulator that came with the engine originally; my impression from your information George, is that there should be NO input from the 5V regulator board to the CC"M" board, however, my 5V regulator board had a yellow wire output going to the DCDR (and now) the CC"M" board's J1 connector pin 1. Why is that needed if the CC"M" instructions state that that pin should be "Power input, 5.6v supplied from the R2LC". I had that pin removed for my latest test this morning; do I still need that input? - seems counter-intuitive to me.....
I have another CC"M" board I can use to swap this one out, but until these issues are "plain and simple" as far as initial wiring, I'm holding off further adventures in electronics. Appreciate your inputs.
