Atlas B40-8W BNSF #580

This page was last updated on Sunday, July 11, 2010 03:12:07 AM










Tsunami Sound Installation Instructions for Atlas B40-8W. 


List of Materials (purchased with confidence from Ulrich Models)


- Tsunami AT1000 Board with GE FDL-16 sound (1)

- QSI Mini oval speaker (1)

- QSI Mini oval speaker enclosure (1)

- 470ohm resistors (2)

- Sunny white micro LED's for ditch lights (2)

- Minitronics 3mm yellow-glo LED's (3)

- Kadee #58 couplers (2)




1. Remove handrails from both sides of locomotive as they may get damaged during shell removal.


2. Remove couplers and coupler pockets and remove air reservoir tanks from bottom. Also remove air cylinder on rear truck holding chain.


3. Carefully remove entire shell (both cap and walkway portion). Be patient as these caps are tightly shoved onto the frame. (I will show you how to fix this later)


4. Once shell is removed, remove old board. All electrical contacts are held in place by plastic covers which cam be removed one at a time with a small pair of pliers. If you do not intend on soldering you will need to save these. 


5. Remove front and rear weights. These are held by a single screw.


6. You will need to sand down the sides a bit so the shell does not fit so tightly. I use a Black and Decker mouse in a vise using course paper. It should take only a few minutes to sand them down sufficiently. There are also two spots on the cap and walkway which need to be sanded down. I do this with a Dremel sanding wheel. These are marked as shown in the photo below. Once you do this the shell should freely slide on and off.


7. Mill down the rear weight 6mm from the top of the weight to a point just before the rear light housing. I have a milling machine so it makes it easy. A Dremel cutting tool can be used with greater difficulty. This is were the mini speaker will go.



8. Insert board into tabs over motor and solder all truck wires and motor wires onto correct tabs. 


9. Drill a hole into the side of the mini oval speaker enclosure. Solder two small wires onto speaker then fish wires through hole and snap speaker into enclosure. 


10. Put a small piece of double sided tape onto bottom of speaker enclosure and put in spot milled out. Solder wires to speaker tabs on board.


11. Use liquid electrical tape (purchased from Harbor Freight Tools among many suppliers) to coat three Minitronics LED leads from LED to a few millimeters from end of leads and let dry.


12. Solder a 470ohm resistor onto each of the common tabs on the tsunami board.


13. Stand Each LED with leads up and down into light pockets (there are three) and bend leads accordingly. For the rear you will need to bend them to go over speaker (see photo below). 


14. Solder wires onto ends of LED's and cover exposed areas with shrink wrap.


15. Solder wires onto light tabs with one going onto resistor common. In the case of the LED for the number boards use the front light tabs.


16. On the platform part of plastic shell, from underside of front locate ditch lights and push out plastic inserts. 


17. Glue with CA each micro LED into hole. They should fit perfectly into hole. Let dry a few minutes then insert plastic inserts back into holes. You may need to clip a millimeter or so off so it fits flush.


18. Insert platform part of shell back onto frame.


19. Fish ditch light leads from to the board as shown in photo below. Cover exposed metal with tape as any slight imperfection in armature wire can cause a short as I learned after a few hours of frustration.


20. Tape down LED's in housing as shown.


21. Solder one set of ditch light leads onto front lighting tabs with resistor (common) then solder one ditch light lead onto F5 tab and other onto F6 tab.


22. Cut out two channels in cab interior floor over two wire channels on front weight so the cab interior will fit properly. Insert it into the appropriate hole.


23. Tape capacitor wire in half as shown below and sit capacitor on tsunami board.


24. Program to road number and test all lighting. 


25. Insert cap on frame and re-install all handrails.