This installation is for a HO-Scale Kato EMD-SD40-2 using a TCS WOW121-Diesel Decoder, AK-MB1 Motherboard with built in Keep Alive®
and UNIV-SH1-C WOWSpeaker kit.
|These items are available in the WDK-ATL-3 which was used for this installation.|
|AK-MB1 Motherboard with Keep Alive™||WOW121-Diesel Decoder||UNIV-SH1-C Speaker Kit|
|Click here for more information on the WDK-ATL-3 and the rest of the WOWDiesel Kits line.|
HO-Scale Kato EMD-SD40-2 shown prior to installation.
To start off this install, we must first remove the front and rear coupler screws highlighted above 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 Kato EMD-SD40-2 shown with the shell off. Remove the two screws highlighted above in red along with the wires from the original lighting board and remove it from the chassis.
Save these screws to install the new motherboard.
Remove the black plastic clip on top of the original lighting board.
Carefully bend up the motor connection tabs on the left and unsolder the track pick up leads on the right from the board.
Trim the motor connection tabs and lift off the lower plastic running board platform to gain direct access to the track pick ups. The track pick up tabs wil llift right out.
Solder new flat connection points to the left and right track pickups as well as the motor connection tabs.
Using small lengths of TCS 3/32" and 3/64" shrink tubing, insulate these solder leads.
Using the original lighting board screws, attach the AK-MB1 to the frame and solder the motor and track pickup wires to it according to the included wiring diagram.
With the 35mm X 16mm WOWSound speaker inserted into the UNI-SH1-C enclosure, using the same double sided foam tape, mount this assembly to the frame as shown
and solder the wire leads to the motherboard according to the included wiring diagram.
Inside the top of the shell is a weight that must be removed to allow space for the WOWSound components. Remove the single screw highlighted above
in red and the weight will easily come out. Next, using a blade or similar trimmer, cut each light tube as shown above in blue.
Unclip the original LEDs from the lighting board for reuse.
Solder new wire leads to each of these LEDs as shown above. Insulate these connections with the above mentioned shrink tube.
Using a small amount of hot melt glue, carefully mount the front and rear LED to the end of each light tube as shown above.
Solder these two lights to the AK-MB1 according to the included wiring diagram.
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 Kato EMD-SD40-2 is now WOWSound equipped and ready to roll!
Click here for important information on properly Stripping and Tinning wire