Hornby R2915-SD 28xx Class 2-8-0 2818 as preserved at NRM

 

I have recently chipped my Hornby R2915-SD 28xx Class 2-8-0 2818 As preserved at NRM its been sat on the shelve for a while and now found the loco runs in reverse, checking the wiring the black wire is connected to pin 8 and pin 4 is connected to the red wire I was hoping to order a sound chip but with this issue I am reluctant to do so until this is sorted 

Swapping the plug round didn't work it let the smoke out now the chip is dead Delving deeper the red wire from the tender pickup was poorly stripped leaving a stray strand, this was long enough to touch pin 7 it must have happened when I was swapping the plug around. Tided up the wires and fitted a cheap LAIS chip. I give it a running in then plunge for a sound chip.