Unfortunately its a common fault with the early PCB board, Hornby later updated them. However there is a simple fix... Just put the decoder in back to front and all will be well :)
Plugging the decoder in backwards will work ... up to a point. For loco movement it's fine, but the reason that works is that you lose the common positive pin for driving lights. More importantly for me, it also swaps the left and right rail connections, which will affect how ABC is seen by the decoder.
@@DongitsModelRailway done this on several Class 50’s with forward lights (old pcb board as per your video) and had no issues, also used dcc sound decoders bank to front with no issues on said pcb board. Glad you got it sorted 😁 certainly an in-depth and well explained video 👍
@@DugmerJunction I guess all the lighting circuit they had to convert from common anode to common cathode handled the missing pin successfully then -- that's normally a problem when plugging in a decoder backwards, but obviously not in this specific case. Did you use ABC on the locos with the decoders plugged in backwards at all?
Hi. Which Class 50 is that? I got Agincourt which I think was the last all blue one they did. Hopefully I won't have this problem, although I can live without lights if necessary
Unfortunately its a common fault with the early PCB board, Hornby later updated them. However there is a simple fix... Just put the decoder in back to front and all will be well :)
Plugging the decoder in backwards will work ... up to a point.
For loco movement it's fine, but the reason that works is that you lose the common positive pin for driving lights.
More importantly for me, it also swaps the left and right rail connections, which will affect how ABC is seen by the decoder.
@@DongitsModelRailway done this on several Class 50’s with forward lights (old pcb board as per your video) and had no issues, also used dcc sound decoders bank to front with no issues on said pcb board. Glad you got it sorted 😁 certainly an in-depth and well explained video 👍
@@DugmerJunction I guess all the lighting circuit they had to convert from common anode to common cathode handled the missing pin successfully then -- that's normally a problem when plugging in a decoder backwards, but obviously not in this specific case.
Did you use ABC on the locos with the decoders plugged in backwards at all?
Hi. Which Class 50 is that? I got Agincourt which I think was the last all blue one they did. Hopefully I won't have this problem, although I can live without lights if necessary
@@DongitsModelRailway either that or it was just a print error on the pcb board.