I use a circuit board clamp so i can work on it still in the machine.
This board is my least favourite of any to work on - absolutely hate them with avengence.

But! Stu - after the last one i worked on, i swore i would from now on place a connector in line.

How do you test this board out of the machine?? You cant - it relys on inputs from the connectors

I knew you would like this thread, Gavin 

To test mine, I just place the entire unit back in the cab and reconnect the unput. Stand back - and then switch on