I've recently accquired a Hornby A4 - Falcon number R2779. It's a Railroad model and according to the box is DCC ready. Unfortunately there are no instructions on how to convert it from DC to DCC, nor can I find any on various websites. Does anyone have a copy of the instructions that they could forward to me? Also, while I'm at it, am considering putting an A4 sound module in it. Has anyone installed a sound module in this loco? TIA