Turntable dead

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steventrain		#1 Posted : 14 June 2018 23:44:11(UTC) Retweet
Joined: 21/10/2004(UTC) Posts: 31,606 Location: United Kingdom		The 7286 turntable is dead with 7687 decoder. I removed from the layout and testing the turntable but still dead. I suspend operation running trains layout without TT.
		Large Marklinist 3- Rails Layout with CS2/MS2/Boosters/C-track/favorites Electric class E03/BR103, E18/E118, E94, Crocodiles/Steam BR01, BR03, BR05, BR23, BR44, BR50, Big Boy.


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jvuye		#2 Posted : 14 June 2018 23:53:11(UTC) Retweet
Joined: 01/03/2008(UTC) Posts: 2,881 Location: South Western France		Originally Posted by: steventrain The 7286 turntable is dead with 7687 decoder. I removed from the layout and testing the turntable but still dead. I suspend operation running trains layout without TT. ....mine's dead too! Same day as yours? Must be an epidemic somehow. Will have to investigate. It's fitted with a Littfinski decoder. My suspicion at this point is that the problem is in the TT electro-mechanics, not the decoder. Maybe some one has some expertise trouble shooting these? Schematics anyone?
		Jacques Vuye aka Dr.Eisenbahn Once a vandal, learned to be better and had great success!


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Alsterstreek		#3 Posted : 15 June 2018 10:54:14(UTC) Retweet
Joined: 16/11/2011(UTC) Posts: 5,669 Location: Hybrid Home		Here is a German description of a conversion of the 7286 TT from Maerklin 3-rail to Fleischmann 2-rail standard. There are many diagrams (and some photographs) of the "Maerklin status" before conversion which might help? https://www.mdvr.de/down...rehscheibensteuerung.pdf
		Greetz - Ak My current "layout": https://www.marklin-user...aigne-Project#post592818


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JohnjeanB		#4 Posted : 15 June 2018 15:39:44(UTC) Retweet
Joined: 04/02/2011(UTC) Posts: 3,116 Location: Paris, France		Originally Posted by: steventrain The 7286 turntable is dead with 7687 decoder. I removed from the layout and testing the turntable but still dead. I suspend operation running trains layout without TT. Hi Steven Have you tried to use your TT with the manual control? I suspect you need to open your TT , remove the bridge and inspect it; - good contact with rotary contacts - possible cable break under the TT pitt - possible burning of one of the 3 diodes to activate the solenoid A simplified schema is here Schema It is simple to test both the motor and the solenoid by using a DC transformer with a low voltage 5 to 10 V Of course the decoder is disconnected I hope this helps Cheers Jean
		My layout videos latest vid marshalling yard My Layout

2 users liked this useful post by JohnjeanB		Alsterstreek, jvuye
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steventrain		#5 Posted : 16 June 2018 12:46:37(UTC) Retweet
Joined: 21/10/2004(UTC) Posts: 31,606 Location: United Kingdom		I test the turntable is now working with blue controller but the decoder not test with CS2. I need to find control unit with keyboard soon.
		Large Marklinist 3- Rails Layout with CS2/MS2/Boosters/C-track/favorites Electric class E03/BR103, E18/E118, E94, Crocodiles/Steam BR01, BR03, BR05, BR23, BR44, BR50, Big Boy.

1 user liked this useful post by steventrain		Alsterstreek
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jvuye		#6 Posted : 16 June 2018 16:13:37(UTC) Retweet
Joined: 01/03/2008(UTC) Posts: 2,881 Location: South Western France		Originally Posted by: Alsterstreek Here is a German description of a conversion of the 7286 TT from Maerklin 3-rail to Fleischmann 2-rail standard. There are many diagrams (and some photographs) of the "Maerklin status" before conversion which might help? https://www.mdvr.de/down...rehscheibensteuerung.pdf Thanks AK, something to get started on the right track! Cheers Jacques
		Jacques Vuye aka Dr.Eisenbahn Once a vandal, learned to be better and had great success!

1 user liked this useful post by jvuye		Alsterstreek
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applor		#7 Posted : 22 June 2018 03:49:35(UTC) Retweet
Joined: 21/05/2004(UTC) Posts: 1,654 Location: Brisbane, Queensland		This google translated thread gives details on how the turntable mechanics work, it should be of help (helped fix my turntable problem) https://translate.google...-7286.html&edit-text
		modelling era IIIa (1951-1955) Germany


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