Athearn EMD GP7U

Scale:
HO Scale


WOWKit used in this installation

WDK-ATH-6

Which includes the following items:

Decoder
Motherboard
Speaker Kit


This is a installation of TCS WOW121 Digital Decoder, GEN-MB1 mother board with built in Keep Alive® 
and GEN-SH2 WOWSpeaker kit by TCS.

The Athearn Genesis GP7U with the shell on prior to installation.
The Athearn Genesis GP7U with the shell on prior to installation.


We do not have step by step photos of this installation, but here the Athearn Genesis GP7U is shown post installation with the shell off. 
TCS motherboards include on board current limit resistors for LED use. There is no need to apply external resistors for LED use.
We do not have step by step photos of this installation, but here the Athearn Genesis GP7U is shown post installation with the shell off. TCS motherboards include on board current limit resistors for LED use. There is no need to apply external resistors for LED use.


Shown with the wires laced.
Shown with the wires laced.



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

Lacing Cord

In order to keep the wires neat and prevent possible shorts, we recommend lacing the wires into a bundle using lacing cord. Lacing cord is a wax impregnated string used for wire bundling and making harnesses. There are many choices of lacing cord available from Digikey www.digikey.com
We use part number 802534B BK032-ND