Panasonic SA-AK640E Service Manual page 250

CRS1
Step 2: Install the UD base assembly.
Note: Ensure the UD base assembly seats properly into
the grooves and engage with the play lever B and tray
drive rack.
Step 3: Turn the UD connection lever anti-clockwise, the
UD base assembly will move downwards.
Note: When the UD connection lever is turn and the
UD base assembly did not move downwards, check for
step 1 to step 3 again.
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