Blue Pullman (single) sound decoder and speaker (21)

Below is a list of the Function keys and their assignments applicable to this model. F0 Lights on-off F1 Sound on-off F2 Double Horn (1) playable in direction of travel F3 Double Horn (2) playable in direction of travel F4 Single Horn playable in direction of travel F5 Carriage door slam F6 Guards whistle F7 Guard driver buzzer F8 Table lights (Aux 1) F9 Cab lights (Aux 2) F10 ‘Low high - low high’ horn in direction of travel F11 Station announcement at Manchester F12 Station announcement at St Pancras F13 Flange squeal F14 Wheel/sleeper groan F15 Accel/Decel override F16 Shunt mode (half speed) F17 Diesel Notch up F18 Diesel Notch down F19 Volume control 4 level steps F20 Disable Brake sound F21 Sound fade up-down