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 I just installed a diesel kit into my G scale scratch build. For safety and to draw less, I usually turn the smoke off and test in conventional mode first. I couldn't help noticing that the smoke was billowing out of the smoke unit. So I took the pot and turned it up full, and the smoke stopped?

 It might be just me here, but it seems to work backwards? There's only 2 wires to each pot so I'm not sure how this could even happen. Would swapping the two wires even matter?

The volume pot works correctly so that told me I was correct in my thinking about the pot's direction. No big deal here, but it left me wondering.

Maybe they all do this??? I always run in command.

I had to swap out the stock sound file and the chain file. Some of my lights weren't working. The ditch lights didn't seem enabled on the stock chain file.

After swapping out the chain file and it finishing, the board did the beeping for reset. Upon powering back up, there were 2 sets of three or so long beeps and some pauses, then the board finished resetting and came to life. Another power up and all was fine, no more beeps.

There was no beacon LED light like that used to come with the kit. Maybe if needed, the sound file would flash a white one?

There was a regular LED with a white connector. There seemed to be plenty of other LEDs. I had plenty as I already wired in my own head and tail double LEDs.

I installed 2 larger 8 ohm speakers into the fuel tank. I ported the back with a small hole into a sealed chamber. I posted in the past that I didn't feel double speakers made a big difference. I had installed 2, 8 ohm speakers into another build. Each speaker was in a different spot in the engine. They didn't combine their efforts, and the sound wasn't any louder or better than the stock units single speaker overall.

 I have to say that with these 2 speakers, the sound seems much improved. I haven't tested it outside yet. Only on my workbench. They are shielded home stereo type maybe 3" each. They seem to perform pretty well.

Last edited by Engineer-Joe
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Joe, 

I checked several Diesel upgrade kits, including the one on a locomotive undergoing upgrade on my workbench and found exactly what you stated.  
When looking at the volume POT, POT facing up, wires at the 1200 o'clock position - orange is center, purple is left side.

When looking at the smoke POT, POT facing up, wires at the 1200 o'clock position - orange is left side, purple is center.

The purple wire from each POT is tied together and goes to pin # 19 on the 40-pin connector.  The orange wire VOL or Audio goes to pin # 17.  The orange wire SMOKE goes to pin # 15.

Like I said, I checked several Diesel upgrade kits and all are the same.  Check the wiring harness drawing, it shows as I stated.

Bruce

 

Yes, Bruce. I should have posted that I have the wiring chart right here open. I had to use it to run all the custom lights I installed.

I don't remember this issue on the last PS3 kit I installed into my scratch built Gevo with charging lights. I'll look at that one to compare.

I'm just thinking someone at the factory got the wires mixed up, for some reason. I run in command only so something like this might get by me. I test after an install on my bench. I've learned to try the kit with the smoke off the first time. That Gevo had to be tested several times to get all the wiring done. I would have noticed the smoke pot wiring issue I believe.

Edit, I looked at that older Gevo's PS3 board and the wiring to the pots looks the same! I didn't trace the wires all the way to the boards though.

Last edited by Engineer-Joe

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