The Dapol Voyager needs 3 decoders with NEM 651 pins, 1 for the power unit and 1 for each end unit. The bodies clip onto the chassis and placing the proverbial finger nail between the body and chassis will detach one from the other. The power unit has a circuit board fitted in the NEM 651 socket for DC running.

Remove the DC circuit board with care, it is a very tight fit. I found it was best to ease it out making sure the socket was well supported.
Note the 2 black screws, make sure that they are well insulated from the decoder, I failed here and destroyed a decoder.

I fitted a Zimo MX620N from Bromsgrove models. As you can see I made sure that the screws were well insulated

This is one of the end units. There is another circuit board fitted the NEM 651 socket for the running lights under DC conditions. Carefully remove as for the motor unit and insulate the mounting screws to protect the decoder.

I originally chose three Lenz Silver Minis L10311 but with only 2 left I put 1 in each end unit. I programmed the motor unit and the 2 end units together, but when I tested them on the main track I found that the running lights were very intermittent.

The problem with the running lights was traced to the pickups. They only touched the wheels now and again - bad quality control? - Once the pickups were adjusted the problem disappeared and smooth running was achieved.

Finally I must say that I like the magnetic couplings, the are arranged in such a way that the Voyager can only be placed on the track in the correct formation.

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