spent a 5-6 hours researching and fixing and PLAYING  

- firstly the Baywatch schematics are poor for the view of the power board (what colours go where) but realised after a little while that the next super large DMD released might be the same in wiring which it was and the schematics for the power supply board were much clear. Did my check and everything was fairly good except how I recorded colours next to numbers yesterday was incorrect for a few but the colours were all correct so tick done - see below the Frankenstein schematic for a reference for others

- tried to install the suggested patch power lead and didn't have the right molex tool (I think) so will see beaky to make / supply an piggy back adaptor

- discovered that at some stage I reversed the CN5 plug as it was very worn and the plug can go in both ways hence why the board was not getting 5+ to the correct pins and me being the fool for not taking a photo and making notes before pulling things apart.  

- returned the CN5 plug to the correct orientation and the sort of worked on and off on a few start ups so tried to bend the pins a little on the power supply board to firm things up a little and I was in action - playing 20-30 games and left on for a few hours and no blank outs at all.

lesson learnt - take photos, take notes and understand the schematic better before launching in to a repair.

- what to do now - send the leads and power supply board to beaky to get a check over and the CN5 lead remade and the socket on the board replaced plus a check over as still wasn't pulling 5+v and one track looks a little suspect but dmd was operating on 4.83v which defied the articles on what was stated it needed.