Well I've got it all out on a bench so no membrane tail contact..

What happens is it powers on is responsive like normal for 5 seconds then it starts going a bit crazy doing random things then it just freezes. If I turn it off and back on straight away it is still frozen but if you leave it for a minute you can repeat the whole thing again until it freezes. There is some nasty crackling happening on the output like some electricity bacon sizzling on a pan..

I have the later secondary power board so it is a bit difficult as the service manual is really written for the first board.

I am getting 4.80v on the DCOK when frozen.. but right away it is 4.76v with responsiveness before freeze.

Digi +5 it is hard to get it to load up with the Lower function D 3 but when I can all lights are lit and I am getting +4.83V (now in the manual it says to adjust R9 but there is no R9 to adjust on the secondary board>?? I need to get this up to 5v?)

Ref +5v - this is at +4.98v

AC OK - 4.69v (measuring this from P3 4 yellow wire to the ground in middle of main board.)

On the -12v I am getting -12.30V

On the +12v I am getting +12.08V

If anyone has any suggestions let me know. I don't have a scope at hand just a multimeter..

Cheers

Conor