Walthers RS2

Scale:
N Scale


This installation uses the following decoder:


This installation is for N Scale Walthers RS2 uses TCS K2D4 Decoder and was performed by A.G. and N.G.

The upper picture shows the Walthers RS2 with its shell on.
The upper picture shows the Walthers RS2 with its shell on.


This picture shows the locomotive's chassis with its shell taken off and the original lighting board. Be careful as you take off the shell because it is difficult to remove and can be broken easily.
This picture shows the locomotive's chassis with its shell taken off and the original lighting board. Be careful as you take off the shell because it is difficult to remove and can be broken easily.


Place some Kapton tape on the top of the chassis as shown in the picture above.
Place some Kapton tape on the top of the chassis as shown in the picture above.


Place some Kapton tape undearneath of the decoder's LED ( circled in red ) to prevent any shorts.
Place some Kapton tape undearneath of the decoder's LED ( circled in red ) to prevent any shorts.


This is a picture of the fully installed board. All in all it is not a very difficult installation. If you, for any reason, need to remove the K2D4, it will have a tendency to get hung up on the front LED, so you will have to lift this LED over the hump in the locomotive frame.
This is a picture of the fully installed board. All in all it is not a very difficult installation. If you, for any reason, need to remove the K2D4, it will have a tendency to get hung up on the front LED, so you will have to lift this LED over the hump in the locomotive frame.



Important Soldering Tip

Please do not use any flux either liquid or paste on the mother board. Over time, the acidic properties of liquid or paste flux will begin eating away at the fiberglass PCB and will damage it. Use only Rosin-core solder or no-clean flux approved for electronics use.

TCS recommends the use of Kester "44" Sn63 Pb37, .015" diameter Rosin-core solder. Kester part number 24-6337-0007.

You can order this solder from the following retailers:
Digikey - PN:KE1110-ND
Techni-Tool - PN:488SO6775

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