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Märklin SBB 43410 lighting - Lighting installation.
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Offline mvd71  
#1 Posted : 04 June 2025 08:00:22(UTC)
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mvd71

New Zealand   
Joined: 09/08/2008(UTC)
Posts: 1,926
Location: Auckland,
Hi all,

I am looking at installing an ESU 50709 lighting kit into a Märklin 43410 steuerwagen. In doing this I would like to use the existing Märklin led lighting circuit for the headlights etc. has anyone done this and can they confirm wiring for this?

Cheers…..

Mike
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Offline marklinist5999  
#2 Posted : 04 June 2025 12:48:40(UTC)
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marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 3,939
Location: Michigan, Troy
I haven't used the ESU, but I have wired Marklin LEDs in the silberlinge cab control car. My guess is that they are similar. You just splice in a wire between the existing LED board feed and the new coach lightning strip. Then connect the other or rear terminal wire to the existing rear coach terminal or where the rear marker light connects.
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Offline mvd71  
#3 Posted : 04 June 2025 13:22:06(UTC)
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mvd71

New Zealand   
Joined: 09/08/2008(UTC)
Posts: 1,926
Location: Auckland,
Just to clarify, the ESU 50709 is a lighting kit with decoder built in that can control headlights and tail lights.
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Offline marklinist5999  
#4 Posted : 04 June 2025 15:04:52(UTC)
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marklinist5999

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Joined: 10/02/2021(UTC)
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Location: Michigan, Troy
Oh, that may change things up. The existing Markllin led board has different resistors.
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Offline mvd71  
#5 Posted : 05 June 2025 21:13:37(UTC)
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mvd71

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Joined: 09/08/2008(UTC)
Posts: 1,926
Location: Auckland,
I had hoped to be able to patch the headlight output to the axle switch connection on the Märklin board.
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Offline marklinist5999  
#6 Posted : 05 June 2025 22:46:58(UTC)
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marklinist5999

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Joined: 10/02/2021(UTC)
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Location: Michigan, Troy
That I don't know because it's an analog switch.
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Offline 5HorizonsRR  
#7 Posted : 05 June 2025 22:52:42(UTC)
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5HorizonsRR

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Joined: 05/12/2004(UTC)
Posts: 2,981
Location: CA, USA
Hi there,

I'm assuming you want to digitally control the head/tail lights by doing so?

I believe the best process here would be sending the track power directly to the ESU board, bypassing the Marklin board. Then, you can use the "Aux" output from the ESU board to feed the Marklin board in return.

All the solution above does is A- reroute track power, and B- Adds digital control (on/off) of that "raw" track power then being fed to the marklin board.

What is not accounted for here is any mechanical device controlling direction, which I don't have a coach handy to check.

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Offline mvd71  
#8 Posted : 05 June 2025 23:07:35(UTC)
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mvd71

New Zealand   
Joined: 09/08/2008(UTC)
Posts: 1,926
Location: Auckland,
Originally Posted by: 5HorizonsRR Go to Quoted Post
Hi there,

I'm assuming you want to digitally control the head/tail lights by doing so?

I believe the best process here would be sending the track power directly to the ESU board, bypassing the Marklin board. Then, you can use the "Aux" output from the ESU board to feed the Marklin board in return.

All the solution above does is A- reroute track power, and B- Adds digital control (on/off) of that "raw" track power then being fed to the marklin board.

What is not accounted for here is any mechanical device controlling direction, which I don't have a coach handy to check.



That does sound like what I have in mind. In the Märklin unit there is a switch mounted on the leading bogie axle that moves with direction of travel and supplies earthing between the rails and either the headlamp leds or the taillamp led. I was hoping to use the lighting board decoder output into the solder points where the two wires from the switch attach.
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Offline marklinist5999  
#9 Posted : 06 June 2025 11:46:40(UTC)
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marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 3,939
Location: Michigan, Troy
Be careful trying to do that. If the axle switch shorts the decoder it's toast. I say this because the decoder has reversing of the head and tail lights. I don't know what would happen if it is set for one direction and you reversed the train before the lights.
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