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Decoder installation and addressing scheme

Install DCC decoder in Roco El16

Install DCC decoders in NMJ Superline models

Install DCC decoder Roco NS 2200

Install DCC decoder Roco Di5


Install DCC decoder in a Roco Di5
(click on the pictures to see a larger (1024*768) picture)

In 2003 Roco made another run of the Norwegian Di5 class locomotive. The first run of this locomotive was made in the early nineties. The first run has road number Di5.867, the second run has number Di5.876. The second (2003) run has a NEM/NMRA DCC connector, the first run doesn't have any provision for installing a DCC decoder.

I installed a Lenz LE0512 in the first run which was quite a lot of work. The decoder is placed between the metal frame and driver insert. There is a small hole in the frame for the wires which are soldered directly onto the printed circuit board.

Installing a decoder in the 2003 edition of this locomotive should be a lot easier.

After the shell is removed (take out two screws) we have access to the NEM/NMRA connector. The small metal weight is can be removed to give more room for a decoder.

When I removed the plug and plugged in a decoder I thought I was done but unfortunately the first test drive resulted in a blown out decoder. So their must be a short somewhere.

After measuring all the connector points I found that the yellow function output had a connection to the red wire. The arrow in the photo shows the place of the short. The solder point of the diode is touching the copper strip that is used of the power pickup.
Some electrical tape will make sure that this short will never happen again. The photos shows a small piece of tape placed over the solder point on the board. I secured the tape with some CA glue.
Now the decoder can be placed. I selected the Lenz LE1025 which is decoder with excellent BEMF control which is very useful a switching/shunting speeds.
Now the shell can be placed again and the locomotive is ready for the program track. It was programmed with address 5876.


Copyright 2003 Lolke Bijlsma