This installation of TCS WOW121 Decoder with a GEN-MB1 and UNIV-SH1-C speaker enclosure is for HO Scale Bachmann SD-45 and was performed by TCS.

These items are available in the WDK-BAC-1 which was used for this installation.
GEN-MB1 Motherboard with Keep Alive™ WOW121-Diesel Decoder UNIV-SH1-C Speaker Kit Motherboard Mounting Clip
Click here for more information on the WDK-BAC-1 and the rest of the WOWDiesel Kits line.

Important Soldering Tip:
Please do not use any flux either liquid or paste on the mother board. It will damage it. Use only Rosin core solder approved for electronics use.
We recommend to use only Kester "44" rosin core, SN63PB37, .015" diameter, part number 24-6337-0007.
This can be ordered from Techni-Tool under Techni-Tool part number 488SO157

http://www.techni-tool.com

The Bachmann SD-45 shown with the shell on .

    

To begin this installation, first remove the front and rear coupler screws and boxes as highlighted above.

Shown with the shell off. Remove the wires from the original lighting board, unscrew the board from the chassis and remove it.

With the original lighting board removed, trim, tin or lengthen the wires as necessary.

Important: Remove the yellow capacitor attached to the motor seen above. It will cause speed control problems for the decoder if left in place.

Using double sided foam tape, secure the board mount to the top of the motor and then attach the GEN-MB1 to the board mount.
Solder the motor and track connections to the GEN-MB1.

To facilitate a level platform on which to mount the speaker enclosure, file off the original board mounting tabs as shown above.

Next, using double sided foam tape, mount the UNIV-SH1C speaker enclosure assembly on top of the frame and solder the wire leads to the GEN-MB1.

Following the included wiring diagram, solder the front and rear lighting leads to the GEN-MB1.

Lastly, in order to keep the wires neat and prevent possible shorts, lace the wires into a bundle using lacing cord, which is a wax impregnated string 
used for wire bundling and making harnesses. There are many choices of lacing cord available from Digikey www.digikey.com
We use part number 802534B BK032-ND

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 Bachmann SD-45 is now WOWSound equipped and ready to roll!

 


Other solder tips: When stripping wire, only strip a tiny little bit of the insulation. Strip no more then a 1/64 of an inch. When the wire gets tinned with solder the insulation will shrink back more. Try to not expose any more wire then half the length of the solder pad at most. In no case should solder or exposed wire wire ever be outside the boundary of the the solder pad you are attaching a wire to.
Click here for important information on properly Stripping and Tinning wire

Like us on Facebook Subscribe to our YouTube Channel Join our newsletter
  Back To Top
Home
Entire contents © Copyright Train Control Systems 2004-2017