Panasonic SA-XH50P Service Manual page 64

Step 4 Remove 4 screws.
Step 5 Lift up to remove SMPS P.C.B..
Caution: Handle the SMPS P.C.B. with care. Avoid touching
the heatsink due to its prolong use.
Caution: During assembling, ensure that SMPS P.C.B. is
properly located & fully inserted onto Bottom Chassis.
Caution: Replace the Bottom PC Sheet if broken Ensure
that it is pasted on the Bottom Chassis properly.
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