Model Train Sounds Reversing Module Troubleshooting

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T

tombbbb

Member
Good afternoon,
In December I bought a reversing module from Model Train Sounds, which was working great until yesterday. I can't find any information regarding my problem.
When I'm using it, it goes for about 5-6 back and forths of my trolley, and then it stops. I've tried to reset it, and it keeps doing the same thing. Hopefully, someone on this forum has had a similar isssue, who can help me out.
Thanks,
 
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It just stops after about 5-6 times going back and forth. If I turn it off, and turn it back on, it does the same thing. Nothing is hot, I'm really at a loss with this thing.
 


What powers the board? I viewed the instructions, if you use a battery maybe it is shot. The board is small and uses SMD parts. There is not much you can do. Everything is soldered together. This is the second reason I got into electronics. The first was to make a LED blink. Years ago a gentleman wanted to auto reverse his engine so I found a circuit and figured it out. I have one on my Lionel table, it still works. The relay clicks can be heard when it is powered up.

Another reason may be the relay just stops latching. I would test it on the workbench. Add power and lights to the relay. Time the changes to see if they are consistent. Check the solder points for the relay. The relay may be the only thing that is easily replaceable.
 
Thank you for the reply.
I tested the battery, put in a new one, it's a full 9 volts, duracell. I've tried resetting the unit numerous times. Interestingly, if I turn it off, turn it back on, it will work for a number of trips, and then stop. I'm no electronics expert, but I believe that if I could find some instructions with a parts list, I might be able to make one. This thing is very aggravating, because it works, but then stops.
Thanks again
 
Home built is nice, The IC's are in pin connectors and can be switched out.
You can search for kits. Or learn about the LM 555 timer circuits Astable mode.

The electronics club this might be helpful.

Your unit is programmable which is a nice feature. That can be simplified by using a calculator for the Timer you can find them online. {lus there are many videos too.
 
After you understand the lingo, You can purchase premade boards very cheeply. Searches will improve using 555, astable and other key words.
The requirement for the relay is to hold 5 amps and be DPDT. The relays come in different voltages so check your board. It could be 5,12 or 24v. I stick to 12v DC. You can get a 12 volt board to operate on 9 volts. They sell converter boards too. Something to convert 16 VAC to 12V DC. Some are even adjustable. Have Fun.
 
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