This installation is for a HO-Scale Kato SD40-2 using a TCS WOW121-Diesel Decoder, AK-MB1 motherboard with Keep Alive™
and UNIV-SH4C 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 Kato SD40-2 prior to installation.
To start off this install, we must first remove the front and rear couplers as highlighted above in red and their housings.
Once that is complete, the shell will lift off of the chassis. Do this by holding the fuel tank with one hand and lifting the shell off by
pressing up underneath the end platforms with your other hand.
With the shell off, we can now remove the original light board. Remove the wires from the board and the board can easily be unscrewed from the motor mount.
Make sure to save the two screws as they will be used to secure the AK-MB1 back in place.
In this particular locomotive there was a lot of exposed motor tab and wire so we reworked and shrunk wrapped the motor connections prior
to installing the AK-MB1 on top of the motor.
With the motor connections corrected we can mount the AK-MB1 in place of the original lighting board, screw it down, and solder the motor and
track connections to the board.
This engine typically uses LED's mounted directly to the original lighting board or decoder as seen in the second picture of this installation process.
For our installation we decided to use 2 of the TCS 1417 (2x wired surface mount sunny white LED kit) as a replacement for the existing LED's.
To mount these LED's I placed a small dab of hot glue on the end of the light tube and pressed the LED facing into the light tube into the hot glue.
With all 4 LED's mounted on the light tubes you can connect the LED's to the AK-MB1 motherboard.
With the lighting soldered in, insert the 25mm x 14mm speaker into the UNIV-SH4-C enclosure and using double sided foam tape, mount this assembly to the frame
behind the AK-MB1.
Finally, install the WOW121-Diesel decoder onto the AK-MB1 motherboard.