The installation is for HO Scale Bachmann Spectrum Modern American ALCO Richmond Loco. It uses TCS DP2X-UK decoder and was performed by A.G.

Important Soldering Tip:
Please do not use any flux either liquid or paste on the mother board. It will damage it. Use only Rosin core solder approved for electronics use.
We recommend to use only Kester "44" rosin core, SN63PB37, .015" diameter, part number 24-6337-0007.
This can be ordered from Techni-Tool under Techni-Tool part number 488SO157

The three upper pictures represent the locomotive prior to the decoder installation. The TCS DP2X-UK will be fitted into the locomotive's tender.


Remove two phillips screw that are circled in red.


Here is a picture of the original light board with Bachmann decoder.


Remove the Bachmann Decoder as shown in the picture above.


Close-up of the 8PIN NMRA Socket.


Place our TCS DP2X-UK into the DCC socket exactly as shown above. The pin #1 is marked on the board.


Place the shell back, reinstall the Phillips screws and we are ready to go!

Other solder tips: When stripping wire, only strip a tiny little bit of the insulation. Strip no more then a 1/64 of an inch. When the wire gets tinned with solder the insulation will shrink back more. Try to not expose any more wire then half the length of the solder pad at most. In no case should solder or exposed wire wire ever be outside the boundary of the the solder pad you are attaching a wire to.
Click here for important information on properly Stripping and Tinning wire

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