This installation is for HO-Scale Stewart F7A using a TCS WOW121-Diesel Decoder, AK-MB1 Motherboard with 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.|
Stewart F7A shown with the shell on prior to installation
To start this installation, remove the front coupler screw and coupler box. Next, spread the shell outwards from each side and lift it off of the chassis.
Shown with the shell removed. Next, clip off the wiring and remove the motor connection tabs from the original lighting board lifting it from the frame.
Discard this board along with the original lighting bulbs.
Shown with the lighting board removed. Trim, tin or lengthen the wires as necessary.
Solder new connection points on each of the original motor tabs, solder the motor wire leads to these and insulate them with shrink tubing.
Attach the AK-MB1 motherboard onto the frame and solder the track and motor leads to the motherboard.
Next, insert the 25mm x 14mm speaker into the UNIV-SH4 housing and using double sided foam tape, secure this assembly onto the frame.
Solder the speaker leads to the AK-MB1 motherboard.
In this installation we used a sunny white 3mm LED in place of the original bulb. With new wire soldered to the LED leads, solder this to the AK-MB1 according
to your included wiring diagram.
Using a small dab of hot melt glue, secure this LED onto the back of the headlight tube.
The above installation was done utilizing the 25mm X 14mm speaker and the UNIV-SH4C. We found this to produce the best sound, but presented that the enclosure was visible within the cab, to which we painted it black for a more minimal presence. As an alternate that we have used, you can also install the 35mm X 16mm speaker with the UNIV-SH1-C enclosure into the rear of the locomotive as detailed below. To accommodate this installation, the enclosure will need to be narrowed with a file to fit between the frame. If you would prefer this option, order the WDK-ATL3 kit instead.
To accomplish this fit, we marked the enclosure, filed the width slightly and it fits nicely in between the rear frame members,
secured with a small amount of hot melt glue.
You can now plug in the decoder.