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BR class 37 (refurbished) XL sound decoder


A smile is bound to appear on your face when you start your 37 up for the first time…and hopefully everytime!
This is the XL variant (size 51 x 40 x 14mm) which is aimed at larger scale models with a current draw up to 3amps and is fitted with screw terminals for ease of connection. This decoder is not supplied with a speaker.


Below is a list of the Function keys and their assignments applicable to this model.
F0. Lights on/off (if fitted on model)
F1. Sound on/off
F2. Horn 1 – double tone a
F3. Horn 2 – double tone b
F4. Horn 3 – single tone
F5. Buffer up
F6. Coupling up
F7. Flange squeal
F8. Wheel/track ‘groan’
F9. Brake release
F10. Blower fan
F11. Air ‘tick’
F12. Guards whistle
F13. Shunting mode. Press once the loco goes slowly press again and you are back to normal control.
F14. Acceleration/Deceleration. Press once to over ride, press again to cancel
F15. Aux 1 – cab light if applicable


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