Panasonic SA-HT540EE Service Manual page 41

11.1.4. Disassembly of Tray Loading
P.C.B.
Step 1 Remove 3 screws
11.1.5. Disassembly of Optical Pickup
Unit
Special Note: Anti-static measures are necessary due to
handling of OPU unit .
Step 1 Spread the tabs to push in the pin.
Step 2 Remove 4 pins.
Step 3 Remove the middle chassis.
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SA-HT540EE