Athearn GP60M Decoder Installation done by TCS featuring the RTR-MB1 Motherboard with built in Keep-Alive™, WOW121-Diesel Decoder, and UNIV-SH1-C Speaker Kit.


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
These items are available in the WDK-ATH-5 which was used for this installation.

GEN-MB1 Motherboard with Keep Alive™ WOW121-Diesel Decoder UNIV-SH1-C Speaker Kit
Click here for more information on the WDK-ATH-5 and the rest of the WOWDiesel Kits line.

   
First, remove the coupler box screws and the coupler boxes from both ends of the locomotive.

With the couplers removed the shell should lift right off the chassis.


Remove the wires from the original lighting board.


Then lift the lighting board up from the back of the engine to remove it.



Install the RTR-MB1 into the engine by clipping it to the motor like the original lighting board, and solder the motor and track pickup wires to the motherboard. There is only one left rail pickup for this engine so don't worry about attaching a wire to the second left rail pickup tab (see bottom right of motherboard in the image below).

Though there are thru holes on the tabs on the mother board for track power and motor power we do not recommend that you thread the wire though them. Please use the preferred method which is to tin the tab using rosin core solder only,  tin the wire, then solder the wire to the tab by aligning it laying it straight down. Make sure the wire is short so that it does not go beyond the boundary of the solder pad. Please carefully note how neat and cleanly the wires are soldered to the tabs in this photo.  There is no exposed wire off the edge of the the solder tabs. Never use flux for this solder work. Use only rosin core solder approved for electronics.

Next, solder the two violet wires to your WOWSpeaker and mount your 35mm x 16mm WOWSpeaker in the UNIV-SH1-C speaker housing. With the speaker installed in it's enclosure install it below the rear fans and use a 4 small dots of hot glue to hold it in place.

     
Next, wire the RTR-MB1 according to the wiring diagram in the motherboard manual. All the original 1.5volt bulbs supplied with the Athearn loco were used. The white wire solder pad is the forward 1.5v solder pad for the front lights. The yellow wire solder pad is the reverse 1.5v solder pad for the reverse lights. The solder pad marked "1.5V" is the common power source for the bulbs. This motherboard can be configured for LED operation as well, the mother board has built in current limit resistors for LED use. Consult the wiring diagram for LED use.
Solder the speaker wires to the motherboard; please carefully notice how neatly the purple speaker wires are attached to the mother board in this photo.
All wire attachments to the mother board should be done in this manner.

Finally, plug in the WOW121-Diesel decoder, and replace the shell and coupler boxes.

Your WOWSound equipped engine is now ready to run!


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

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