This installation is for a HO-Scale SD-24
using a TCS WOW121-Diesel Decoder, AK-MB1 Motherboard with built in Keep Alive™
and UNIV-SH4-C WOWSpeaker kit by TCS.
|These items are available in the WDK-ATL-2 which was used for this installation.|
|AK-MB1 Motherboard with Keep Alive™||WOW121-Diesel Decoder||UNIV-SH4-C Speaker Kit|
|Click here for more information on the WDK-ATL-2 and the rest of the WOWDiesel Kits line.|
HO-Scale train SD-24 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 SD-24 shown with the shell off. Unplug and 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.
Remove the screw highlighted in red above on the front weight and remove the weight, saving it and the screw for later reinstallation.
The front of the frame shown with the front weight removed.
Attach the AK-MB1 to the frame and solder the motor and track pickup wires according to the included wiring diagram.
Reinstall the front weight to check the clearance and that the AK-MB1 is not touching the motor flywheel.
Using a small dab of hot melt glue, mount the front (left) and rear (right) LED's on top of the screw mounts facing up into the light tubes.
Solder these wire leads to the AK-MB1 according to the included wiring diagram and permanently install the front weight.
Insert the 25mm x 14mm speaker into the UNIV-SH4-C enclosure and using double sided foam tape, mount the assembly onto the frame right in
front of the rear weight as shown above. Wire these leads to the AK-MB1 according to the included wiring diagram. For this installation, as the fan assemblies are open and there are loose fan blades inside, to prevent vibration from these blades we find it desired to place a small drop of appropriate plastic model glue at the junction of the fan blade to the spindle, to prevent them from moving and distorting the sound.
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 Atlas SD-24 is now WOWSound equipped and ready to roll!
Click here for important information on properly Stripping and Tinning wire