This installation is for HO-Scale Stewart F7A uses the TCS AK-MB1 Motherboard, WOW121-Diesel Decoder, and UNIV-SH4-C Speaker Kit and was performed by TCS.
|These items are available in the WDK-ATH-3 which was used for this installation.|
|GEN-MB1 Motherboard with Keep Alive™||WOW121-Diesel Decoder||UNIV-SH1-C Speaker Kit|
|Click here for more information on the WDK-ATH-3 and the rest of the WOWDiesel Kits line.|
Stewart F7A shown prior to decoder installation
Start by removing the front coupler screw and coupler box. Next, spread the shell and lift it off of the chassis.
Shown with the shell removed. Next, remove the wiring and motor connection tabs from the original lighting board and lift it from the frame.
Shown with the lighting board removed. Trim and tin the wires as neccessary. In this case, wire needed to be splice onto the track pick up leads and solder points established.
Soler a connection point on each of the original motor tabs and insulate them with shrink tubing.
Clip the AK-MB1 motherboard onto the motor just as the original lighting board had been attached. Solder the track and motor leads as indicated in your wiring diagram.
Next, using foam, double sided tape, mount the completed UNIV-SH4 speaker assembly onto the frame and solder the speaker leads to the AK-MB2 motherboard.
In this installation we used a sunny white 3mm LED to replace the original bulb lighting. As the AK-MB1 has built in 1K resistors, this gets soldered onto the motherboard
as indicated in your wiring diagram.
Using a small dab of hot melt glue, we secured this LED onto the back of the headlight light tube.
With the motherboard and speaker wired in you can install the WOW121-Diesel decoder. In order to maintain a neat appearance and prevent loose wires which could result in shorts, using waxed lacing cord, bundle the wires into a harness. replace the shell, and re-attach the front coupler.
Your WOWSound installation is complete and ready to run.