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Reply to "My attempt at mapping out the complete electronics for PS2 3V Premier Steam Setup UPDATE: ALL GOOD!"

@GGG: Got it.  I'm pretty confident that I've got all the loco connections and wires correct now.

I only have one lingering question, and it has to do with the reverse lights on the tender.  As I mentioned before, I stole this PS2 card from a RK diesel, so the "reverse" lights are not wired form the card to really reflect the S1.  I'm confident that the backup light (the lamp that's centered on the middle of the tender) is run from the purple PV wire (at pin 1 on the auxiliary tender board) and through the green wire back to pin 4 on the 12-pin connector.  I would assume that the S1 sound file will activate this wire when running in reverse.

But there are also two corner "marker" lights at the top corners on the rear of the tender.  They are small red LED's.  I'm wondering if anyone knows which wire those can be driven from, and are they supposed to be lit continuously or only when reversing the train?  I imagine they can be driven from one of the pins on the 8-pin connector, but since they're LED's and not lamps (light the backup light) can I still just run the positive side from the purple PV connection (see my chicken scratch sketch in red).  And which pin will the S1 sound file activate properly for those? Will either of the yellow wires work?  This is the last connection I have to figure out, then I'm pretty sure I've got it wired 100% per original plan.

I also tried my hand at making a complete harness with a 10-pin Hirose connector to connect the tender shell mounted stuff to the auxiliary board, and it took me a while to figure out how to crimp those tiny little things properly (yes, I have a decent crimping toop for the open crimp terminals, but they're so **** tiny...)  But, I'm happy today I've got a harness with the smoke switch, volume pot, and charge port (even though it's not being used) plus the Molex pigtails for the rear light and rear markers!  I'm quite proud of myself!

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Last edited by Jeff_the_Coaster_Guy

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