Correct.This machine is in the UK. The fuse is often in the power plug.
None at all. I tried numerous attempts to hold a couple buttons down to pull up some error codes, but nothing.Is there any sign of life on the control display?
I'll do some more pics, but I came across someone with the exact same machine as mine online today and he fixed his by replacing the exact same diode thats gone in mine. But, he replaced the 100v 1a diode with a 100v 2a and it fixed it for him. Of course, we both could have different issues, and I could be unlucky and had other parts go bad with the diode, however, i've ordered up the diode and its coming tomorrow. I will replace it and see. I will report back if it doesn't solve the issue.The left hand side of the larger board looks like a switch mode power supply. I am guessing that the two pin connector in the bottom left hand corner is the AC input to the board. Can you confirm that this is the case ? (Your pictures are not sharp enough to read all the labels.)
If my guess is correct can you test for continuity between the live and neutral on the mains plug to the two pins on the connector that plugs into this connector ? (This is to find out if this part of the board has power applied to it all of the time without you having to take readings of high voltages.)
I suspect that the small board with the large heat sink could be the power supply for the control electronics. What is under the large heat sink on this board ? (It looks too large to be for a linear regulator considering the size of the transformer.) Pictures of the etch side of the boards would also be helpful.
Les.

