M41 Csörgő – 8bit MTB H0 Plux22

Project version 212.2.6
M41 Csörgő – 8bit MTB H0 Plux22
8bit

Sound sample

Project Information

  • Optimised for the MTB H0 model equipped with a Plux22 connector.
  • Designed for 8-bit ZIMO MX sound decoders.
  • Recommended minimum decoder software version is 40.22.
  • The factory default address is 3.
  • Program CV8 = 8 to reset the decoder to the project defaults.

Function Assignment

Function mapping and CV settings can be modified.

  • F0 White marker lights
    Affected function output: FA0v, FA0r
    Direction dependent
  • F1 Red lights
    Affected function output: FA1, FA2
    Direction dependent
  • F2 Headlight
    Affected function output: FA3
    Direction dependent, linked to F0
  • F3 Shunting mode
    Affected function output: FA0v, FA0r
    • speed range reduced to ½
    • reduces acceleration / braking times to ¼ of CV3 and CV4
    • turns off red lights if enabled
    • turns off the headlight if enabled
    • triggers a short horn at start
  • F4 Short horn
  • F5 Coasting
    Idle sound regardless of set speed
  • F6 Engine to maximum RPM
    Independent of set speed, even when stationary
  • F7 Long horn
  • F8 Sound on/off
    Engine on/off
  • F9 Driver’s cab light
    Affected function output: FA4, FA5
    Direction dependent, switches off once the model starts moving
  • F10 Short whistle
  • F11 Long whistle
  • F12 Screw coupler down
  • F13 Screw coupler up
  • F14 Sanding
  • F15 Dispatcher whistle – new
    Call to readiness
  • F16 Dispatcher whistle – old
    Call to readiness, departure
  • F17 Compressor
    Also random sound
  • F18 Unused
  • F19 Wheel squeal in curves
  • F20 Heating
  • F21 Ventilator
  • F22 Unused
  • F23 Unused
  • F24 Unused
  • F25 Unused
  • F26 Mute sounds
  • F27 Volume down
  • F28 Volume up

Setting Maximum Speed

Use CV57 to adjust the maximum speed. CV5 would change the sound range, while CV57 leaves CV3/CV4 untouched.

Shunting Mode

All four marker lights switch on in shunting mode. Disable the feature with CV37 = 0 and re-enable it with CV37 = 3. The mode also turns off the red lights and headlight; override this by setting CV430 = 0 and back to CV430 = 3 when needed.

The mode halves the speed range and reduces acceleration/braking times to a quarter of the CV3/CV4 values. Disable it via CV124 = 16 or fully remove the timings with CV124 = 19. Default CV124 = 18.

A script triggers a short horn whenever the model starts in shunting mode if F3 and F8 are active and the speed is zero. CV837 = 8 disables it.

F5 Coasting vs F6 Engine to Maximum RPM

If both functions are active, coasting takes precedence.

Cabin Lighting

The driver’s cab light on F9 is script-controlled: it switches off when the model moves and turns back on after stopping. Disable it with CV837 = 8 if you prefer manual control.

For manual control without automatic switching, set CV43 = 96 together with CV837 = 8. Revert to the default by setting CV43 = 0 and CV837 = 0.

Compressor

The compressor offers two modes:

  1. Random activation when F8 is on (enabling F17 cancels it).
  2. Direct activation via F17 that requires F8 on and zero speed.

CV837 = 1 disables F17, CV837 = 2 disables the random mode, and CV837 = 3 disables both.

Curve Squeal

The effect needs F19 and F8 plus a speed between 14 and 100 (range 0–126). Set CV837 = 4 to disable it.

Custom Function Mapping

Remap functions via CV400 – CV428 if needed. The project itself does not rely on these CVs.

Decoder Reset

Program CV8 = 8 (or CV8 = 0) to restore the default settings.

Basic CV Settings in Project

  • CV3 = 16
  • CV4 = 14
  • CV5 = 1
  • CV6 = 1
  • CV33 = 1
  • CV34 = 2
  • CV35 = 12
  • CV36 = 16
  • CV37 = 3
  • CV38 = 0
  • CV39 = 0
  • CV40 = 0
  • CV41 = 0
  • CV42 = 0
  • CV43 = 0
  • CV44 = 0
  • CV45 = 0
  • CV46 = 0
  • CV57 = 125
  • CV105 = 145
  • CV106 = 5
  • CV124 = 18
  • CV125 = 88
  • CV126 = 88
  • CV127 = 89
  • CV128 = 90
  • CV129 = 88
  • CV130 = 89
  • CV131 = 90
  • CV190 = 3
  • CV191 = 2
  • CV254 = 212
  • CV255 = 2
  • CV256 = 6
  • CV266 = 100
  • CV339 = 6
  • CV340 = 5
  • CV374 = 5
  • CV395 = 130
  • CV396 = 27
  • CV397 = 28
  • CV430 = 3
  • CV432 = 193
  • CV433 = 195
  • CV434 = 194
  • CV435 = 195
  • CV836 = 0
  • CV837 = 0

Sound Sample Numbers

F4 CV522 27 Short Horn
F7 CV531 26 Long Horn
F10 CV540 24 Short Whistle
F11 CV543 23 Long Whistle
F12 CV546 25 Screw Coupler Down
F13 CV549 29 Screw Coupler Up
F14 CV552 22 Sanding
F15 CV555 30 New Dispatcher Whistle
F16 CV558 31 Old Dispatcher Whistle
F20 CV673 21 Heating
F21 CV676 28 Ventilator
script 20 Compressor
script 32 Wheel Squeal in Curves

"Script" means that the corresponding sound is used inside a script outside the normal CV mapping. The number is provided for standalone use when the script is disabled.