Decoder Family: MRC Sounder Decoders

CV Definitions:

CVNamePositionsValues
120
    121
      7
        8
          50
          1. Horn 1
          2. Horn 2
          3. Horn 3
          4. Horn 4
          5. Horn 5
          6. Horn 6
          7. Horn 7
          8. Horn 8
          9. Horn 9
          10. Horn 10
          11. Horn 11
          12. Horn 12
          13. Horn 13
          14. Horn 14
          15. Horn 15
          16. Horn 16
          17. Horn 17
          18. Horn 18
          19. Horn 19
          20. Horn 20
          21. Horn 21
          22. Horn 22
          23. Horn 23
          24. Horn 24
          25. Horn 25
          26. Horn 26
          27. Horn 27
          28. Horn 28
          29. Horn 29
          30. Horn 30
          31. Horn 31
          32. Horn 32
          33. Horn 33
          34. Horn 34
          51
            52
            1. Bell 1
            2. Bell 2
            3. Bell 3
            4. Bell 4
            5. Bell 5
            6. Bell 6
            53
              54
                55
                  56
                    57
                      58
                        59
                          60
                            61
                              62
                                63
                                  64
                                    113
                                      114
                                        115
                                          116
                                          1. Off
                                          2. Type 1
                                          3. Type 2
                                          118
                                          1. Ditch Light
                                          2. Gyra Light
                                          3. MARS Light
                                          4. Prime Strato Light
                                          5. Strobe Single Pulse
                                          6. Strobe Double Pulse
                                          7. On/Off
                                          119
                                          1. Ditch Light
                                          2. Gyra Light
                                          3. MARS Light
                                          4. Prime Strato Light
                                          5. Strobe Single Pulse
                                          6. Strobe Double Pulse
                                          7. On/Off
                                          122
                                          1. Auto notch - RPM and notch synchro to speed
                                          2. Manual notch - notch up/down with F8/F9
                                          123
                                          1. EMD SD60
                                          2. EMD 567B
                                          3. Alco 244
                                          4. EMD SD70
                                          Reset delle CV ai valori di fabbrica LIGHT EFFECTS WIRING Controlled by F3* If your locomotive has ditch lights, or any type of accessory lights, you can solder wires to the three solder tabs on the Sounder The center tab is the common for the light effects. You would then program CV's #118 and #119 to choose the desired light effect. Both light effects are turned on and off by function 3 (F3). There is no independent selection of either light effect. If you program the effect for ditch lights, F3 turns them steady on/off, but activation of the horn function, F2, makes them blink alternately. LIGHT EFFECTS PROGRAMMING CHART FOR CV118/CV119* You would program CV #118/119 to choose the desired light effect. CV118 for ACC1 and CV119 for ACC2. For ditch lights both CV118 and CV119 must be set to 0. *Note - The light effects operate on the track output voltage supplied by your DCC system. Please contact the locomotive manufacturer as to the operational voltage of these extra lights, so you can then choose the proper current limiting resistor (1k to 3k) to add into the circuit to prevent light bulb or LED failures. Also be careful not to short the tabs with solder or wire strands causing a short circuit and damaging the MRC Sounder. These lighting functions are not designed for headlight use, only accessory type lighting. Lights MRC 1666 Diesel Sounder Decoder with 4 Prime Mover Sounds Four types of synchronized diesel prime movers, ALCO 244/SD60/SD70/EMD567B MRC
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