PS Audio Power Plant Premier Service Manual page 9

REGULATOR PCB REMOVAL
To replace the Main PCA remove the four corner screws being careful to not lose the stand-off
spacers. The thermal sensor R10 is mounted on the bottom side of the PCA so it can protrude
into the heat-sink.This thermal sensor is sometimes glued into the insulating spacer (Better seen
in next picture).
During reassembly, ensure that the thermal sensor is positioned into the insulating spacer.
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