OK its running again, and most of it was my fault.
I replaced TR3 a BC548 transistor with a 2N3904 when the original problems started, Yes this transistor is a replacement for the BC548 BUT the leg pinout is reversed, so i put it in the correct way but really this was the wrong way.
So in goes a new 2N3904 back to front and i have my coin door switches back again.
Re programed the Time Machine and she goes
I think what started this whole saga was the battery acid corrosion and should have been the first thing i fixed
Thanks to all who offered suggestions on fixing this pin
Ian
