BR Class 35 Hymek Sound Decoder & Speaker (21) New Heljan Model

Below is a list of the Function keys and their assignments applicable to this model. F0. Lights on/off (if fitted) F1. Sound on/off F2. Horn 1 Double F3. Horn 2 Single F4. Buffering up F5. Coupling up F6. Buffer clash on wagons F7. Flange squeal, continuous until function key is re-pressed F8. Guards whistle F9. Carriage door slam F10. Track/sleeper ‘groan’ F11. Shunting mode, Press once and the loco goes slowly press it again and you are back to normal control. F12. Acceleration/Deceleration over ride. Press once to over-ride, press again to return to preset settings. F13. Aux  6 Cab Lights No.1 End F14. Aux 5  Cab Lights No.2 End F15. Aux 3 Red Lights No.2 End F16. Aux 4 Red Lights No. End