INSTALL A DCC SOUND SYSTEM
Unscrew the seating unit to reveal the speakermounting location, above the bogie. The Legomanbiffo package appears to be a generic DMU kit with a choice of two speakers, neither of which fit the mount in the Dapol model. Before fitting the decoder, I soldered the other ends of the fine wires to the tiny terminals marked LS+ and LS-. It’s a much simpler job than it seems, requiring only a deft touch with a hot soldering iron. Take care not to bend the pins when removing the analogue PCB. Gentle leverage from underneath, close to the mounting pins, will help ease the PCB away. Keep it just in case you ever decide to go back to analogue. The speaker needs to be positioned to enable the two flange screws to hold it in place. Once secured, it presents a sealed edge around the speaker. The DCC decoder can then be pressed into place on the 21-pin locator. DCC Supplies offers a 20mm round speaker that fits perfectly within the flanged Dapol mounting. Two short, fine wires are needed – I snipped 30mm lengths from the spare speaker and soldered them to the round speaker.