description

Decoder Buddy Information

 

This product is versatile in terms of direction of the placement of the board and mounting in various configurations.  It can easily replace a QSI board, a Dual Mode decoder board or be mounted directly on the electric motor or frame with Kapton tape.  (It is recommended that a piece of Kapton tape be placed on the bottom of the mother board to assure electrical isolation from the electric motor or frame.)


This mother board does not include the 21 Pin Decoder.


This mother board and connector board require soldering.


These printed circuit boards are NOT FOR USE IN A DC SYSTEM.


The on board resistors are sized for LEDs. (2.2K)

Now I have added Decoder Buddys with 0 ohm, 750 ohm and custom specified resistors for function outputs.  These may be requested by the email link.


The mother board includes; 

One 21 Pin Decoder receptacle,

Two pairs of track input pads,

One pair of motor input pads,

One pair of stay alive pads (U+ and GND),

Two pairs of speaker pads wired in parallel,

Resistors for use with LED lighting. (on board 2.2K)  (Also available with 0 ohm, 750 ohm and custom specified resistors for function outputs.  this accommodates incandescent lamps or bulbs.)


The connector board contains pads for eight pairs of lighting function connections. U+ or the blue wire has eight connected pads for the common power source. The negative (-) discrete function pads are all labeled to indicate their connection to the functions available in the decoder.

If you require incandescent lamps there are procedures that require soldering and allow for incandescent lamp use or different Decoder Buddys made specifically the application.  Remember there are different incandescent lamp voltages and current draw that have to be taken into consideration also.

The lighting connector  was designed so that the shell of the diesel locomotive can be easily separated from the frame without unsoldering wires. This does require that the headlight and rear lights be mounted in the shell of the locomotive and that the diesel has a removable dynamic brake shell.

Decoder Buddy installed, speakers installed, decoder installed, and the motor is tested and ready.

Decoder Buddy installed, speakers installed, decoder installed, and the motor is tested and ready.

Decoder Buddy Size

Dimensions

Width x Length x Height


 O.67”  x  2.20”   x   0.35”


17 mm x 56 mm x 9 mm


Height may vary slightly 

depending on decoder.

Before and after in two of Jim Moe's Proto1000 RSC2s

Before and after in two of Jim Moe's Proto1000 RSC2s

Decoder Buddy Outputs for different manufacturers decoders

 

Pin #       Decoder     Digitrax           LokSound    SoundTraxx           TCS

                    Buddy                                            V4               T2 & E2


                

  3               A6                         A6                     A6                                                    F6*

  4               A4                       A4                     A4                        Fx6                    F4

  7               F0r                      F0r                   F0r.                      F0r                    F0r

  8               F0f                     F0f                    F0f                       F0f                    F0f

 13               A3                       A3                      A3                        Fx5                      F3

 14              A2                      A2                      A2                        Fx4                     F2

 15               A1.                      A1                       A1                        Fx3                      F1

 17              A5                       A5                      A5                                                     F5*

* Note: TCS functions 5 and 6 are not programmable, and will only output constant bright lights.

* Note: TCS functions 5 and 6 are not programmable, and will only output constant bright lights.

LOCOMOTIVE STARTUP WITH SOUND, LIGHTS AND MOTION!

An added benefit of Decoder Buddy beyond easy DCC decoder installation is YOU CHOOSE lighting functions.  Upgrade the motherboard that came with your locomotive for all the lighting functions available in your 21 pin decoder!  Ditch lights, blinking ditch lights, numberboard lights, step lights, ground lights, class lights, the list goes on.

WHAT ELSE CAN IT DO???

NS, CSX  and RAILROADS THAT BOUGHT THEIR "PREVIOUSLY OWNED" LOCOMOTIVES


EIGHT LIGHTING FUNCTIONS IF AVAILABLE ON THE 21-PIN DECODER