Top Board - is physically mounted to the top stainless steel manifold plate and is primarily responsible for the RF power generation and peak control, peak width and peak location. The Top Board seems to be the most fragile board of the hp 5971 msd and hp 5972 msd. Non-existing or inconsistent peaks are the main clues to a bad top board. While RF power generation and control is a complicated engineering application, it is a board that can be relatively easy to repair. Send it to us and we'll troubleshoot it and repiar (or replace) it for you.
