This installation documentation is for the HO-Scale Kato RS-1. This installation uses the TCS WOW121-Diesel Decoder, AK-MB1 with Keep Alive and UNIV-SH4-C WOWSpeaker Kit and was performed by our friends at DCC Xpress.
The Kato RS-1 shown prior to installation. To start the installation, remove the couplers and gently squeeze the sides of the shell toward the bottom and lift up, leaving the platform in place.
Shown with the shell off. Bend the motor pickup tabs out of the way, clip off the wire leads and then remove the the original lighting board.
With the lighting board removed, trim or lengthen, then tin the wire leads as necessary. Use the two motor pick up tabs and solder a new connection point to each of these. Solder a new wire lead to each and insulate them with shrink tubing.
Mount the AK-MB1 motherboard to the locomotive as shown to the existing clips. Solder the track and motor leads to it.
In this installation, we replaced the single light bulb with two new long lasting TCS Sunny White Leds. To do this, remove the two light tubes and trim as necessary. Create a small divot in each to accept the new Leds and using a small dab of hot melt glue, mount the newly wired LEDs into the spaces created for them in the light tubes. TCS motherboards include resistors and it is not necessary to add them to this installation.
Next, with the 25mm x 14mm speaker inserted into the UNIV-SH4-C speaker housing and using the same tape, mount it onto the top 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.
Solder the new LED wire leads as well as the speaker wire leads to the AK-MB1 motherboard according to the included wiring diagram.
You can now plug in your WOW121 Diesel 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 Kato RS-1 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