If you are sure you have power to the control board/console and it will not light up then the problem is likely in the board, but that is an expensive piece so make sure you are getting full power to it.

If so your likely solution is to replace it.

Good luck.

I understand your need to be certain it is the board before replacing it. Unfortunately the world of microprocessor controls that the engineers designed does not allow for this. Basically they designed the software in your machine with very sophisticated diagnosis routines, but failed (either deliberately or out of ignorance) to allow for the situation where the CCU itself fails. This is even more of an issue since the board is the weak point in the system.

I do not have a wiring diagram for the machine, and you can trace the main power line, but it almost certainly has to come into the board initially. If the board is dark and power is coming to it, the board is very likely the problem. So, all I can leave you with is that if you decide you want to fix it you will have to replace the board and hope that fixes the problem.

Again, good luck and let us know how it turns out.

Well, for some reason your board is just not getting power, or it is possible you received a defective board. I do not see the part you describe as a replacement part and it is not described in the service manual.

At this point I can only suggest that you determine if power is getting to the board, and and if so, clean and check all of the connections. You may also want to consider a new wiring harness. It is not expensive.

If it still does not function you may want to return the board as defective and see if another one will work. The do have defective replacements on occasion.

Sorry the replacement did not work, it's now somewhat of a mystery.

Well, sorry we are able to get you going, good luck with your new machine and thanks for the update