Black Knight back to life,,,   
After restoring the wire hack and soldering up a new connector with the right colour coded wires in order BK is running like a dream.
This Rottendog board is only temporary till I get the original CPU and Driver boards refurbished.
After playing BK for a couple of hours last night I found the Rottendog board has sum minor faults in the programing, little thing like speech doing weird things or not saying anything it at all. Ran a diagnostic on the sound/speech boards and no faults,,, strange 
I find the game runs better with the original boards in the game.
My Black Knight may not be in showroom condition but it does me and I learn a lot on how pinball electronics work.


And to Strangeways for his assistance, many thanks .


Pinball is a fun hobby, I probably get more enjoyment fixing them than playing pinball.....


Pinpal...  :-)