Board looks fine - no sign of burning. You think it still needs to be replace though?
Ok so just ended up jiggling the contacts back and forth as I couldn't work out how the blocks come off. Turned power on and got a big bang and shower of sparks which fused the house! Burnt area on the circuit board now round the small connect at bottom right of circuit board. Would that be the door lock bit you were talking about earlier? Definitely needs a new main board now though!!
The machine is 11 years old - I can buy a new Bosch £100 more than the minimum cost of repairing this so I think I'll just cut my losses now!
Thanks help - much appreciated! At least I got to the root of the problem and was able to make an informed decision!