If you haven't already detected it and accidentality forgotten that you did (it happens) the LM could be dead or may have a password on it. If you don't know what that password could be then you can try resetting the password. The instructions for resetting the password are in the HC-3 instructions, page 26 to be exact.

- Tim

I've only recently acquired the LM-3S 21 pin modules, so all of my past conversion have been using a 9-pin to whatever (8-pin, 9-pin, 21-pin, hardwire, etc. harness. I do full sound modules on all my units - As, Bs and hood units. The covered wagons have 2 speakers each, the hood units have a minimum of one speaker and all units have Keep-Alives.

In my era, consists were always changing, so the flexibility is key. One passenger train could be all covered wagons, the next could have 1 F-unit and 2 GPs in the consist. Freights could also include covered wagons - nothing like seeing a F7B in the mix with some SD40-2s...

Sound comes through all speakers, but the consist is smart enough to keep the bell and horn to the lead unit. Unfortunately, it also keeps Brake Squeal and Dynamic Brake sounds to the lead unit, when those should be heard across the consist.

Hope that helps.

Hi All,

i use the Rail Pros system on my dead-rail G gauge outdoor layout.  Bob Buck from York PA set me up and installed all of my equipment.  i am having some issues with one of the locomotives and would like to have it looked at.   I am in Jacksonville FL.   Any recommendations on who i can call or send it to ?   THANKS

Hi Tom, to review, on the LM-5S-G these on/off outputs are for higher current up to 2 amps. Use outputs 7 & 8 for smoke units, lots of incandescent bulbs or tripping couplers. Will work with any LGB /PIKO Seuth units. For Aristo  Craft you must use the Aristo adapter board. Bachmann steam or diesel engines use the Bachmann PCB005 plug in adapter board.  For USA smoke units use the USA smoke units PCB. Unplug from the USA lighting board. Redirect the black wires to terminal 7 or 8 and red to +V screw terminal on the LM-5-S-G.

I saw the post on the FB group as well but didn't have much to add till now. Two reasons come to mind as to why Ring may want the unit sent back for service:

1. While this could certainly be a software issue as you suspect, it could also be a firmware or hardware-related problem that only shows up under certain operating conditions.
2. Speaking from my own experience troubleshooting software and electronics, it's often much easier to diagnose an issue when you can reproduce and observe it firsthand rather than relying solely on user-reported symptoms.

Is there a reason you're hesitant to send it back to Ring? In my experience, they've been very fair to work with and generally do a good job of identifying issues fairly quickly.