Panasonic SA-BT222EB Service Manual page 56

Step 6 Move the DVD Lid Unit to remove from Front Panel.
10.13.2. Assembly of DVD Lid Unit
Step 1 Insert the DVD Lid Unit into the Front Panel as arrow
shown.
Caution: Ensure that Shaft A of DVD Lid Unit is fully
inserted into Slot A of Front Panel.
Step 2 Locate DVD Lid Spring in between ribs of Front Panel.
Step 3 Insert the DVD Lid Unit (Shaft B) into the Front Panel
(Slot B) as arrow shown.
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