Author Topic: mapping the new Rapido E8A functions  (Read 432 times)

cws

  • Fireman
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  • Posts: 18
mapping the new Rapido E8A functions
« on: August 29, 2026, 11:18:10 AM »
Greetings from steamy Florida...

I'm running one of the new (beautiful) Rapido E8A passenger locomotives and it's pretty amazing. 

I pulled the DC jumper and install a LM-3S-21 and set the motor current.  Horn, bell, engine, etc. all seem to operate as intended.

Now I'm trying to figure out a few more things, specifically:

why do the number boards flash when I turn them on?

The front light option controls the Mars light.  How do we turn on the headlight (F0)?

There may be other options to apply in the future.  the operating manual covers the standard F0-F28 options.

unfortunately the manual defers to the LokSound options... shouldn't we be creating RailPro options that can/should be implemented? 

thanks!

Carl

Smoke

  • Engineer
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  • Posts: 56
Re: mapping the new Rapido E8A functions
« Reply #1 on: Today at 11:30:08 AM »
Unfortunately, Rapido has started using ESU designed motherboards which limits lighting functions that can be used by other decoders. I have a workaround that SHOULD fix this for the LM-3@-21, but I haven't tested it yet so won't post it here as it may damage components if not done properly. This shouldn't change the front lights though, as the front and rear lights should be accessible from any decoder/module. Did you set the front light button to "Output 1 Front Light"?

I am getting my Rapido CF-7 today actually (With ESU so I can do some cross referencing), so I may do some testing and let you know how my workaround actually functions. It will involve some surgery, but nothing super complicated.

ETA: The E8 doesn't have the factory capacitors, so I think it might work 100% with a LM-3S-21. Can you post a picture of the internals of the locomotive showing the motherboard? I have an E8A from an earlier run and can do some comparisons to see if they are the same.
« Last Edit: Today at 01:18:36 PM by Smoke »
-Andrew