I've ordered some molex connectors from Mark so hopefully these will fit...
I'm not 100% confident it will fix the problem but needs to be done....
I have replaced about 80% of switch diodes thus far....Not too sure what next step should be. I guess replace the diode under crane assembly which will complete that row/column.
From memory I had tested transisters on CPU Q48 onwards and they were OK. Nil further done ie resistors etc...
Clays guide suggests a shorted switch can cause similar issues. Now is this a diode which causes short, or physical short - ie pin touching metal etc...
As far as the flipper board goes, I'm still tempted to buy a PinLED / Rottendog replacement but will cost me about $200.00 to get in...