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Do you have a logic probe?
Check U1 P18. If it is always high the PIC is probably bad. If it is mostly low and goes high when the magnet should be on, the problem is in the transistor drive area. One more transistor, Q4 2n5551 -> TIP32C -> TIP36C. Sounds like PIC failure is somewhat common on this board from the amount of posts about it.
I think the manual has theory of op about the magnet board if you want to try and understand how it works.
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Leesburg, VA