Be happy with what you’ve got!
The technicians they will just replace boards only when the plasma display goes out when the plasma display goes out when they will just replace boards only when the technicians they will just replace boards only when they exchange it.
So you want to play tricky with the technician.
The question is how good are you?
Can you dis-assembly and reassembly the unit with out anyone notice?
If you can’t than I suggest don’t do it.
The only defect that can make you get new unit is when the defect comes from the panel it self.