Atlas GP38

Scale:
N Scale


This installation uses the following decoder:


This installation is for N Scale Atlas GP38 and uses TCS AMD4 Decoder and was performed by Jim Starbuck of Clinton, Iowa.



Before AMD4 decoder installation. Photo shows original light board.
Before AMD4 decoder installation. Photo shows original light board.


AMD4 decoder installed.
AMD4 decoder installed.


Photo below shows loco frame disassembled.  Although it looks like a big job it is actually very simple. Once the two screws are removed,  the frame separates. The original light board is easily removed and the AMD1 decoder easily installed. Use care in alignment of the frames, motor mount, and gears when re assembling.  The trucks can be put on last, they snap into place.
Photo below shows loco frame disassembled. Although it looks like a big job it is actually very simple. Once the two screws are removed, the frame separates. The original light board is easily removed and the AMD1 decoder easily installed. Use care in alignment of the frames, motor mount, and gears when re assembling. The trucks can be put on last, they snap into place.



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
http://www.techni-tool.com

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