This installation is for a HO-Scale Athearn SD40T-2 using a TCS WOW121-Diesel Decoder, RTR-MB1 Motherboard with built in Keep Alive™
and UNIV-SH4-C WOWSpeaker kit by TCS.
|These items are available in the WDK-ATH-10 which was used for this installation.|
|RTR-MB1 Motherboard with Keep Alive™||WOW121-Diesel Decoder||UNIV-SH4-C Speaker Kit|
|Click here for more information on the WDK-ATH-10 and the rest of the WOWDiesel Kits line.|
HO-Scale Athearn SD40T-2 shown prior to installation.
To start off this install, we must first remove the front and rear coupler screws highlighted above in red and their housings.
With the couplers removed, while gently pulling outwards at each end and along each side of the frame, lift the shell off of the frame.
Take care to release the handrails as you lift off the shell so they don't break.
The Athearn SD40T-2 shown with the shell off. Remove the wires from the original lighting board and remove it from the chassis.
With the original lighting board removed, trim, tin or lengthen the wires as necessary.
Using the bottom clip, attach the RTR-MB1 to the chassis and solder the motor and track pickup wires according to the included wiring diagram.
When attaching the wires to the pads, it is not necessary to insert the wires through the holes. We recommend attaching the wires flat on top
of the solder pads.
The RTR-MB1 has a motor pick up clip pre-attatched to the bottom, so mounting it onto the locomotive could not be easier.
Remove the two screws highlighted above in red and remove the weight from the chassis. This weight will not be used to allow space to
accommodate the speaker assembly.
With the 25mm X 14mm speaker inserted into the UNIV-SH4-C enclosure, using double sided foam tape, mount this assembly
securely into the roof of the shell in the rear as shown above.
NOTE: In this installation, the open fans on the roof have loose fan blades. In order to prevent vibration which could compromise the sound quality,
we recommend that you add a small drop of model glue to the junction of the fan and spindle to prevent this movement.
Solder the speaker and lighting leads to the RTR-MB-1 according to the included wiring diagram.
In this installation, we used all the original 1.5 volt bulbs as the RTR-MB1 includes solder pads for both 1.5 v bulbs.
You could also add LEDs to this installation if you so desired.
Shown with the shell lighting and speaker reattached to the RTR-MB1.
You can now plug in your WOW121 decoder.
Now you can close up the locomotive and reinstall the coupler assemblies. Be sure to be mindful of wire routing and reassembly of the shell as to not damage or foul the installation. Your Athearn SD40T-2 is now WOWSound equipped and ready to roll!
Click here for important information on properly Stripping and Tinning wire