This installation documentation is for the Atlas GE U23B. This installation uses the WDK-ATL-3 Kit which includes the AK-MB1, WOW121-Diesel decoder, and UNIV-SH1 -C speaker kit
The Atlas GE U23B shown prior to installation.
To begin, remove the coupler screw and housing highlighted above in red.
Then, remove the other coupler as well.
With the couplers removed, carefully release these tabs located underneath and along the sides of the shell. The shell will lift off.
The Atlas GE U23B shown with the shell off. Remove the original lighting board.
Remove the screw highlighted above in red and with it, the rear weight. This space is needed for the speaker.
Shown with the original lighting board removed. Cut, trim or lengthen and tin the wire leads as necessary.
Clip the AK-MB1 motherboard to the chassis and solder the track and motor wire leads to it.
For this installation, with the rear weight removed, we spliced wire leads to the rear LED, insulating them with shrink tubing and using a dab of hot glue, mount the original LED light to the light tube. It might be necessary to slightly trim the tube to allow proper space for the speaker enclosure. We have found that LED light output is brightest when shinning directly into the end of the light tube, but in some circumstances, they may be placed along the length of the tube as well with satisfactory results. In doing so, white light LED output would be least affected, while the non white LED output will be more affected by placement. TCS motherboards include on board current limit resistors for LED use. There is no need to apply external resistors for LED use. The front LED was place with a dab of hot melt glue back into the original mounting channel.
Using foam, double sided tape, with the 35mm X 16mm WOWSound Speaker inserted into the UNIV-SH1-C enclosure, mount this assembly to the roof of the shell as shown. If your speaker enclosure installation covers the portholes on the enclosure, we recommend adding new porthole(s) similar to the original porting. Be sure that the new portholes are the same size and amount of the original and are vented freely into the locomotive We have found introducing a port of the correct size greatly increases the volume and sound quality of the installation. Too much or too little porting decreases the sound quality.
The installation shown complete.
You can now plug in your WOW121 decoder. Lastly, in order to keep the wires neat and prevent possible shorts, lace the wires into a bundle using lacing cord. 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 GE U23B is now WOWSound equipped and ready to roll!
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
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