DCC Sound Decoder Install on a Bachmann SD40-2 Diesel locomotive

[Desert Rose]

SoundTraxx 885840 Tsunami 2 TSU-BH1 2 Amp Digital Sound Decoder Install on a Bachmann EDM SD40-2 DCC onboard Diesel locomotive.



1 each. Bachmann Loco Chassis Bottom (HO SD40-2 DCC NEW). ................Model: 609XX-00C02-C NEW



1 each. SoundTraxx TSU-BH1 Tsunami 2 EDM Digital Sound Decoder. .........P.N. 885840 EDM Diesel



1 each. SoundTraxx 28mm (1") Round Speaker. .........................................................Product Coad: 810153
        Dimensions: 28 x 4.5mm(D)
        Frequency Response: 320 Hz - 18kHz
        Power: 1 Watt (Nominal) 2 Watts (Peak)
        Impedance: 8 Ohms



1 each. Bachmann Fuel Tank with Speaker holes - Gray (HO SD40-2). ......................Model: 609XX-00M01- DCC-GRAY



1 each. Bachmann LED Front (HO SD40-2). .......................................................................Model: 6090X-LED-F

     

1 each. Bachmann LED Rear (HO SD40-2). ...............................................................................Model: 6090X-LED-R
.
         

2 each. Fuel tank cover screws. .......................................................................................P.N. 10471

1 each. Plastic dip 11OZ. ...................................................................................................P.N. 11203




TASK: BREAK IN THE MOTOR BRUSHES AND GEARBOXES

: BREAK IN THE MOTOR BRUSHES AND GEARBOXES. RUNNING THE ENGINES FORWARD FOR TWENTY
  MINUTES AT THREE DIFFERENT SETTINGS, THEN BACKWARDS FOR TWENTY MINUTES AT THREE
  DIFFERENT SETTINGS THIS WILL QUIET DOWN THE GEAR BOXES AND INSURE POSITIVE BRUSH
  CONTACT FOR GOOD LOW SPEED MOTOR CONTROL.


TASK: DISASSEMBLE DIESEL LOCOMOTIVE

: REMOVE FUEL TANK COVER.



: REMOVE SHELL RETAINING SCREWS, RETAIN SCREWS FOR REASSEMBLY.



: REMOVE SHELL.



: REMOVE BLACK PLASTIC PCB CLIPS FROM LEFT AND RIGHT TRUCK TABS, MOTOR TABS AND LEFT AND 
  RIGHT BACK TRUCK.
NOTE: BACHMANN DOES NOT ALWAYS FOLLOW THE NMRA COLOR CODING. RIGHT DOWN WIRE COLOR
            AND TAB FOR FUTURE REFERENCE.



: REMOVE FRONT SCREW FROM BACHMANN DCC DECODER AND RETAIN.



: REMOVE BACK SCREW FROM BACHMANN DCC DECODER AND RETAIN.



: REMOVE THE BLACK (-) REAR TRUCK WIRE AND THE RED(+) RIGHT REAR TRUCK WIRE.



: REMOVE THE BLACK (-) FRONT TRUCK WIRE AND THE RED(+) RIGHT FRONT TRUCK WIRE.



: REMOVE THE ORANGE (-) MOTOR WIRE AND THE RIGHT GREY (+) WIRE.



: REMOVE THE DECODER FROM THE CHASSIS TOP.



: REMOVE PLASTIC WIRE HOLDER.



: REMOVE THE MOTOR FROM THE LOWER CHASSIS.



: USING A FLAT TIPPED SCREWDRIVER REMOVE FRONT AND BACK TRUCKS



: INSPECT THE END OF THE UNIVERSAL JOINT HUB FOR SPLITTING OR SEPARATION OF THE UNIVERSAL
  JOINT AND WORM GEAR SHAFT. FOR REPAIR SEE https://www.bachmanntrains.com/home-usa/board/index.php/topic,38176.0.html



 
: DISCARD OLD BOTTOM CHASSIS MODEL: 6090X-00C02-A



TASK: REASSEMBLE DIESEL LOCOMOTIVE

: BACHMANN LOCO CHASSIS BOTTOM (HO SD40-2 DCC NEW). .........MODEL: 609XX-00C02-C NEW



: USING A DREMEL ROTARY TOOL WITH A SANDING DRUM ATTACHMENT WIDEN OUT THE SPEAKER
  HOLE LIP ON THE BACHMANN LOCO CHASSIS BOTTOM SPEAKER HOLE, SO THE SPEAKER SITS FLUSH
  WITH THE CHASSIS BOTTOM.




: INSPECT THE SPEAKER FOR PROPER CLEARANCE FROM SHORTING TO THE BOTTOM CHASSIS.



: APPLY THREE COATS OF PLASTI DIP RUBBER COATING ON BOTTOM CHASSIS, LET DRY IN BETWEEN
  COATS.



: SOLDER SPEAKER WIRES TO SPEAKER AS SHOWN TO PREVENT SHORTING TO BOTTOM CHASSIS.
  NOTE: USE FLUX ON ALL WIRES TO BE SOLDERED. TIN WIRES BEFORE INSTALLING WIRES TO DECODER.



: INSTALL SPEAKER INTO THE BOTTOM CHASSIS AND FUEL TANK COVER WITH TWO 10471
  COUNTERSUNK SCREWS.


 

: REMOVAL OF CAPACITORS AND DOGBONE SHAPED INDUCTORS ATTACHED TO THE MOTOR. IF
  INSTALLED, REMOVE THE THREE ORANGE CAPACITORS AND TWO GREEN DOGBONE SHAPED
  INDUCTORS. THE POSITIVE AND NEGATIVE LEADS SHOULD BE ATTACHED TO THE BRUSH CAPS
  DIRECTLY TO THE DECODER BOARD.





: SOUNDTRAXX TSU-BH1 TSUNAMI 2 EDM DIGITAL SOUND DECODER. .........P.N. 885840 EDM DIESEL



: ON THE BENCH ALL TABS ON THE FRONT END OF THE DECODER TO BE USED, POPULATE WITH SOLDER.



: ON THE BENCH ALL TABS ON THE BACK END OF THE DECODER TO BE USED, POPULATE WITH SOLDER.



: WITH THE DECODER AND LIGHT SHIELD IN PLACE, FIT THE LED FRONT MODEL: 6090X-LED-F AS
  SHOWN. OBSERVE THE
  CORRECT POLARITY OF THE LEDS AS INDICATED IN THE DIAGRAM BELOW. LARGE FLAG (-).
 



: REMOVE LIGHT SHIELD AND SOLDER THE LED FRONT MODEL: 6090X-LED-F ON TO THE DECODER.



: I FIT THE DRIVE SHAFTS INTO THE TRUCK GEARBOX UNIVERSAL JOINTS AND REINSTALL INTO THE
  LOWER BODY CHASSIS DRIVE SHAFT TUNNEL. RED WIRES (+) RIGHT HAND, BLACK WIRES (-) LEFT HAND.



: FIT THE DRIVE SHAFTS INTO THE MOTOR FLYWHEELS AND REINSTALL THE MOTOR INTO THE LOWER
  BODY CHASSIS.



: INSTALL CHASSIS TOP AND INSTALL FRONT LIGHT SHIELD AND DECODER ON THE TOP CHASSIS REUSING
  SCREWS. FOUR-TAB END FORWARD,  THREE-TAB END REARWARD. INSTALL THE BACK PLASTIC WIRE
  HOUSING.



: TUCK SPEAKER WIRES ALONG THE SIDES IN BETWEEN DECODER AND CHASSIS.
: SOLDER THE RED (+) WIRE TO THE S+ TAB,  THE BLACK (-) WIRE TO THE S- TAB.
NOTE: USE FLUX ON ALL WIRES TO BE SOLDERED. TIN WIRES BEFORE SOLDERING WIRES TO DECODER.



: TUCK THE FRONT TRUCK WIRES ALONG THE SIDES IN BETWEEN DECODER AND CHASSIS.
: SOLDER THE RED (+) WIRE TO THE RR TAB,  THE BLACK (-) WIRE TO THE LR TAB.
NOTE: USE FLUX ON ALL WIRES TO BE SOLDERED. TIN WIRES BEFORE SOLDERING WIRES TO DECODER.




: TUCK WIRES ALONG THE SIDES IN BETWEEN DECODER AND CHASSIS.
: AT THIS POINT A COMMON MISTAKE IS MADE. ON THE DECODER RIGHT IS (+) AND LEFT IS (- ). EXCEPT
  ON THE BACK END, THE MOTOR IS RIGHT (-) AND LEFT (+), BACKUP LIGHT IS RIGHT (-) AND LEFT (+).

IN FIG.1 SHOWS THE MOTOR AND BACK UP LIGHT WIRED BACKWARDS.

GREY MOTOR WIRE (+), SOLDERED TO MOTOR TAB M- (-).
ORANGE MOTOR WIRE (-), SOLDERED TO MOTOR TAB M+ (+).
BLUE BACKUP WIRE (+), SOLDERED TO BLUE BACKUP TAB BL (-).
YELLOW BACKUP WIRE (-), SOLDERED TO BLUE BACKUP TAB V+ (+).

WHEN TEST RUN FORWARD, THE HEAD LIGHT WILL TURN ON AND THE MOTOR WILL RUN BACKWARDS.
WHEN RUN IN REVERSE, THE BACKUP LIGHT WILL NOT TURN ON AND THE MOTOR WILL RUN FORWARD.

IN FIG.2 SHOWS THE MOTOR AND BACK UP LIGHT WIRED CORRECTLY.

GREY MOTOR WIRE (+), SOLDERED TO MOTOR TAB M+ (+).
ORANGE MOTOR WIRE (-), SOLDERED TO MOTOR TAB M- (-).
BLUE BACKUP WIRE (+), SOLDERED TO BLUE BACKUP TAB BL (+).
YELLOW BACKUP WIRE (-), SOLDERED TO BLUE BACKUP TAB V- (-).

NOTE: BACHMANN DOES NOT ALWAYS FOLLOW THE NMRA COLOR CODING. THE WIRE COLORS MAY
VARY ON THE MOTOR AND BACKUP LIGHT. ON THIS MODEL:
GREY MOTOR WIRE (+).
ORANGE MOTOR WIRE (-).
BLUE BACKUP WIRE (+).
YELLOW BACKUP WIRE (-).

NOTE: USE FLUX ON ALL WIRES TO BE SOLDERED. TIN WIRES BEFORE SOLDERING WIRES TO DECODER.



FIG. 1



FIG. 2

: SOLDER THE RED (+) RIGHT BACK TRUCK WIRE TO THE RR TAB, THE BLACK (-) WIRE LEFT BACK TRUCK
  TO THE LR TAB.
NOTE: USE FLUX ON ALL WIRES TO BE SOLDERED. TIN WIRES BEFORE SOLDERING WIRES TO DECODER.




TASK: TEST AND PROGRAM

: PLACE ON SERVICE TRACK ADDRESS 3, IN FORWARD MOVING THROTTLE FORWARD THE ENGINE
  SHOULD MOVE FORWARD WITH HEAD LIGHT ON BACKLIGHT OFF. IN REVERSE MOVING THROTTLE
  FORWARD THE ENGINE SHOULD MOVE IN REVERSE BACKUP LIGHT ON HEAD LIGHTS OFF.

: BEFORE INSTALLING THE SHELL, YOU CAN UPGRADE OR REPAIR YOUR COUPLER POCKETS. 
https://www.bachmanntrains.com/home-usa/board/index.php/topic,38183.0.html

: REMOVE FUEL TANK COVER.
: INSTALL SHELL WITH TWO 10157 SCREWS.



: INSTALL FUEL TANK COVER WITH TWO 10471 COUNTERSUNK SCREWS.







                                                                                          CV CHEET SHEET

IN ORDER TO KEEP ENGINE FLEET STANDARDIZED I USE A CHEAT SHEET FOR A PROGRAMING START POINT.

CV2 START VOLTAGE = ()

FOR NEW INSTALLS I SET UP CV2 START VOLTAGE VALUE TO MEET A STEP ONE THROTTLE, SPEED STEP 28 =  9 INCH PER 10 SECONDS TRAVELED REQUIREMENT ±.

           

EXAMPLE



TSUNAMI 2 TSU-BH1 2 AMP DIGITAL SOUND FOR ENGINE CONSISTS OF UP TO EIGHT ENGINES:

ONE SD40-2 ENGINE AT 15.3 OZ.
CV2 START VOLTAGE VALUE IS SET AT = 30
SPEED STEP 28 AT STEP ONE THROTTLE, 9 INCH PER 3 SECONDS TRAVELED.
SPEED STEP 128 AT STEP ONE THROTTLE, 9 INCH PER 3 SECONDS TRAVELED.

UNDER LOAD.

EIGHT SD40-2 ENGINES IN CONSISTS AT 122.4 OZ. TOTAL ENGINE WEIGHT PULLING 80 CARS TOTAL 440OZ.
CV2 START VOLTAGE VALUE IS SET AT = 30
SPEED STEP 28 AT STEP ONE THROTTLE, 9 INCH PER 13 SECONDS TRAVELED.
SPEED STEP 128 AT STEP ONE THROTTLE, 9 INCH PER 20 SECONDS TRAVELED.

EDM SD40 – 2, SINGLE ENGINE OPERATION:
SOUNDTRAXX 885840 TSUNAMI 2 TSU-BH1 2 AMP DIGITAL SOUND

***CV1 PRIMARY ADDRESS = ()
CV114 ENGINE EXHAUST CONTROL = 2
CV120 HORN SELECTION = 28. (LESLIE S3L)
CV123 PRIME MOVER SELECT (EMD 645 TURBO) = 5  
AUTOMATIC SOUNDS (CV198 = 6) (CV193 = 2) (CV194 =5)
CV198 = 2 AUTO-BELL
CV198 = 4 AUTO-BRAKE
CV198 = 6 AUTO BELL & AUTO BRAKE
CV193 = () BELL START RANGE ANYWHERE BETWEEN 1 AND 126 (CV193 MUST BE LOWER THAN CV194)
CV194 = () BELL ON TIME RANGE ANYWHERE BETWEEN 1 AND 255 (DURATION 1 TO 255 SECONDS)
          (CV194 MUST BE HIGHER THAN CV193)


EDM SD40 – 2, ENGINE CONSISTS OF UP TO EIGHT ENGINES:
SOUNDTRAXX 885840 TSUNAMI 2 TSU-BH1 2 AMP DIGITAL SOUND

****CV1 PRIMARY ADDRESS = ()
CV2 START VOLTAGE = 30
CV3 BASELINE ACCELERATION RATE = 29
CV4 BASELINE DECELERATION RATE = 2
CV10 EMF FEEDBACK CUTOUT = 126
CV114 ENGINE EXHAUST CONTROL = 2
CV116 DYNAMIC BRAKE RATE = 2
CV117 INDEPENDENT BRAKE RATE – 12
*CV120 HORN SELECTION = 28. (LESLIE S3L)
CV123 PRIME MOVER SELECT (EMD 645 TURBO) = 5
CV211 LOW-SPEED COMPENSATION = 255
CV212 BEMF FEEDBACK INTENSITY = 126
CV215 BEMF REFERENCE VOLTAGE = 125
CV220 CONSTANT BRAKE DISTANCE = 2
CV223 PRIME MOVER PITCH SHIFT = 88 (No. 2 CONSIST ENGINE) = 168 (No. 3 CONSIST ENGINE)
**AUTOMATIC SIGNAL, THE DECODERS IS SETUP (IN ORDER)
    CV31 INDEX 1 (READ ONLY) = 16
    CV32 INDEX 2 = 1
    CV258 CLICKETY-CLACK EFFECT = 0
**AUTOMATIC WHISTLE SIGNAL, THE DECODERS IS SETUP (IN ORDER)
  *CV31 INDEX 1 (READ ONLY) = 16
  *CV32 INDEX 2 = 1
  *CV407 AUTOMATIC WHISTLE SIGNAL FORWARD = 1
  *CV408 AUTOMATIC WHISTLE SIGNAL REVERSE = 2
  *CV409 AUTOMATIC WHISTLE SIGNAL STOP = 12 
*HEADLIGHT SET POINTS. (CV 57 OFF=0, ON =1) (CV 58 OFF=0, ON =2)
*AUTOMATIC SOUNDS (CV198 = 06) (CV193 = 2) (CV194 =5)
*CV198 = 2 AUTO-BELL
*CV198 = 4 AUTO-BRAKE
*CV198 = 6 AUTO BELL & AUTO BRAKE
*CV193 = () BELL START RANGE ANYWHERE BETWEEN 1 AND 126 (CV193 MUST BE LOWER THAN CV194)
*CV194 = () BELL ON TIME RANGE ANYWHERE BETWEEN 1 AND 255 (DURATION 1 TO 255 SECONDS)
                    (CV194 MUST BE HIGHER THAN CV193).


ACTIVATE THE QUIET START :

IF YOU WANT THE SOUND ENGINES ON THE LAYOUT TO START ON DEMAND, THE DECODERS IS SETUP CV114=2



NOTE: F5 FULL ENGINE SOUND START UP.
NOTE: F6 FULL ENGINE SOUND SHUTDOWN.



* ACTIVATED ON LEAD ENGINE.

** INDEX DESIGNATORS FOR MORE INFORMATION:
    https://www.bachmanntrains.com/home-usa/board/index.php/topic,38188.0.html
    https://soundtraxx.com/content/Reference/Manuals/Tsunami2/tsu2_diesel_usersguide.pdf

*** CHANGING FACTORY CAB NUMBER:
      https://www.bachmanntrains.com/home-usa/board/index.php/topic,38011.0.html

**** CV1 PRIMARY ADDRESS FOR CONSISTS ARE DONE IN GROUPS:
        (SD40-2 = 2) (GP40-2 = 4) (DD40AX = 3) (DD40AX-SD40-2-DD40AX = 5).


NOTE: CVs CAN BE QUICKLY RESET TO THEIR FACTORY DEFAULT VALUES USING THE FOLLOWING PROCEDURE.

1. TURN ON TRACK POWER TO THE DECODER.  WAIT 5 SECONDS THEN RETURN POWER TO THE DECODER.  IF YOU HAVE INSTALLED
A SOUNDTRAXX CURRENTKEEPER™ OR ANOTHER DEVICE THAT MAINTAINS TRACK POWER, ALLOW AT LEAST TWO MINUTES FOR
CHARGING BEFORE PROGRAMMING.

2. ENTER ONE OF THE FOLLOWING VALUES INTO CV 8 (MANUFACTURER ID) TO PERFORM A FULL OR PARTIAL CV RESET:

    CV8 MANUFACTURER ID
    CV8 TO 8  =  RESET ALL CVS
    CV8 TO 9  =  RESET CVS  1-128
    CV8 TO 10 = RESET CVS  129-256
    CV8 TO 11 = REST CVS 1.257-1.512
    CV8 TO 12 = RESET CVS 2.257-2.512
    CV8 TO 13 = RESET CVS 3.257-3.512

3. TURN OFF POWER TO THE DECODER. WAIT 5 SECONDS THEN RETURN POWER TO DECODER. IF YOU HAVE INSTALLED A
SOUNDTRAXX CURRENTKEEPER OR ANOTHER DEVICE THAT MAINTAINS TRACK POWER, ENSURE THAT THE DEVICE IS FULLY
DISCHARGED (USUALLY ABOUT 3-4 MINUTES) BEFORE RETURNING POWER.

4. WAIT ABOUT 10 SECONDS AFTER RETURNING POWER TO THE DECODER.  ALL LIGHTS (HEADLIGHT, BACKUP LIGHTS OR EFFECT
LIGHTS) AS WELL AS THE DECODER'S ERROR LIGHT, WILL FLASH 16 TIMES TO INDICATE CVS HAVE BEEN SUCCESSFULLY
RESET. TSUNAMI2 WILL RESPOND TO PRIMARY ADDRESS 3 AFTER ALL CVS OR CVS 1-128 HAVE BEEN RESET.