Ordered the replacement board set from AppliancePartsPros. Moved the range away from the wall. Removed the metal cover panels. released the old circuit boards from their mounting posts (a dowel with an 1/8" hole helped to release each post). Mount the new board on the pins - note that the new replacement main board is a different size from the old board, but fits onto a subset of the existing posts. Transferred the connectors to the new board, one at a time. The new board came with a list of corresponding connector locations. Replace the metal cover panels. Reposition the range.