Open the console, unscrew the 4 screws at the back and remove the circuit board.
- Connect the board to the PC and to the home trainer
- Switch on the home trainer
- Put on the heart rate belt
- Locate the variable resistor (similar to a screw, see red arrow in the picture).
- Using a screwdriver, turn the screw in very small increments until the red LED starts flashing. (The maximum rotation is half a turn clockwise and half a turn counterclockwise).
- Test with the software and check the detected frequency.
- Close the console with the appropriate screws.