The Maytag Neptune Control Board
is not made to be repaired.
I would replace the board with a new one and move on.
We tried repairing a number of these boards when we first heard about the repairs being done to them years ago.
Three out of four that we did repair would work, for awhile. The ones that did work we ended up going back to replace with in six months.
I'm not saying that I'm a expert on the Maytag Neptune, but that has been my experience with them over the years.