This installation of TCS MC2P-MH Decoder is for HO Scale Kato EMD SD40-2 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


Picture of Kato EMD SD40-2 with its shell on.


Unscrew both couplers located on both ends of the chassis.


Grasping the shell at the center top of both sides (being careful not to crush the grills), lift the shell straight up and off of the chassis. Here is the original light board that you will see after you remove the sell.



Here is the close up picture of the original light board with 8pin socket (marked in red)


Remove the plugs (two of them) as shown in the picture above.


Another picture that illustrates the plug removal.


Plug the MC2P-MH into the socket so that the orange wire goes into pin#1 of the socket.

Hold the shell in one hand and the chassis in your other hand. Lining up the front of both pieces, lower the shell onto the chassis, keeping the lower edge of the shell parallel with the chassis.


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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