D&H 65 posted:Hi John: I'm glad you chimed in here; Your second sentence SHOULD be in Scott's ERR Cruise "M" instructions. I DID remove pin 10 from the locomotive's J4 connector, but then plugged it in directly to the CC"M" board. Scott does supply the new J4 connector with only pin 1 inserted, but does not say "why" THAT connector should be used in place of the one already in the locomotive.
I did verify the other wires already in the locomotive and they were two ground wires + three wires going to the "flickering" firebox LED board. Pin 1 is soldered to the R2LC MB pin as directed for serial data. Two more wires were power for the locomotive's 2 LED marker lamps.
The short circuit was somewhat unusual in that noting got hot or smoked - it just popped the breaker. I'm not at home to work this, but tomorrow I'll just wire the serial data wire up and see what happens. When it did power up before with the J4 connector removed, I got locomotive "at rest" sounds + any keystroke on the Cab2 was met with a whistle from the tender.
I may have smoked this board, if so, time to eat crow. I've done almost a dozen CC installs with no issues. It just proves the CC"M" install instructions need more clarity in some areas and the purchasers should know this is just not the "plug and play' install the advertisements seem to portray. One other area of concern I noted was the pin lengths on the bottom of the CC"M" board need to be trimmed before installing in the heat sink you remove-they would short on mine if left unattended to prior to installation.
I'll keep you posted on what I find out.....
I have run into that many of times.I once got a video camera that had instructions.But only in chinese which really made me angry.And yes instuctions can leave out a lot of things.
