Just finished running the engine on rollers for about 20 minutes with no issues.  So something is happening when it is fully placed on the track.  Have club member coming tomorrow to help with further troubleshooting.

Just re-reading everything here before I dive in on making changes.

Tim said (thanks for the visualization diagram - very helpful!):

The board is salvageable if you want to put in the effort, you need to remove the diodes CR5, CR6, CR7, and CR8. Because you put 1k resistors inline with your LEDs you can either remove (replace with wire) or keep the huge 150 ohm resistors, they won't get hot again with the 1k resistors in series however the extra resistance they add will reduce the brightness of the LEDs some more.

Do I need to remove the 150 Ω resistors AND the CR5-8 diodes, or can I just remove the 150 Ω resistors? From what I can see, removing the 150 Ω resistors and replacing with wire is easy, removing the CR5-8 diodes will be much trickier and probably beyond my skill and patience levels.

Don't want to inadvertently nuke a board trying to modernize it.

I think I've posted previously that my LGB Forney has been working beautifully for the past few years, and up until December when it started to malfunction.  The engine might travel 10 - 15 feet then stall.  Sound was still working on the RailPro.  So, I took the powered trucks and cleaned the contacts with an electric contact cleaner spray.  I put the engine on some rollers that I have and it seemed to work well.  I left everything alone until this past week and decided to put the engine on my trestle (it's the cleanest part of my mainline) and was dismayed that the engine only traveled 10 feet before stopping.  No voltage reading on the handheld...

So question...would resetting the RP module be of any help before I tear into the engine?  Also an FYI that the RP module is housed in the boiler.  It's run great for several years now so am not sure where to start...so hence the resetting question.

Thanks,
Richard

Hi All,

There were requests for various voltage readings and I recorded these last night.

Voltage on the Rails: 16.20 V
Voltage seen by the loco (at the connections to the board): approx 15.88 V (it kept fluctuating)

Voltage across the big white/grey resistors:
Front (running the Headlight): average 9.5 V (slight fluctuations)
Rear (running the Gyra-Lite): cycling between 1.75 - 9.5 V

I was able to test my installed LEDs and they are working as advertised. Just need to determine best hook-up option - new board or a hardwire situation.

Did I miss anything?

Well, I’m half where there! Was failing to add “cf” to the project name.
However, I still can’t retrieve the project if I shutdown the program. Jim