Decoder Installation and Testing

Decoder installation on the Atlas N Scale SD-60 locomotives was quick and painless. I just removed the shells, loosened two screws, replaced the existing light boards with Digitrax DN163A1 mobile decoders, tightened the screws, and replaced the shells. I realized later that I probably should have left off the shells until the decoders were tested. I will have to crack them open again if something goes wrong. I might also need to go back later and hard wire the decoders, but for now I will just rely on the contacts.


Before Decoder Installation


After Decoder Installation

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