Panasonic SA-AK520E Service Manual page 31

Step 2 Remove the upper plate.
Step 3 Remove 3 screws.
Step 4 With lifting the claw in the direction of (1), draw the CD Detect P.C.B. in the direction of
arrow (2).
Step 5 Remove the mechanism cover.
Step 6 Insert the gear with hexagonal wrench into the hole.
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