Panasonic SA-BTT775GA Service Manual page 70

Step 9 Detach 4P FFC at the connector (P55006) on Digital
P.C.B..
Step 10 Detach 45P FFC at the connector (P55001) on Digital
P.C.B..
Step 11 Detach 5P FFC at the connector (P55007) on Digital
P.C.B..
Step 12 Detach 5P FFC at the connector (P55008) on Digital
P.C.B..
Step 13 Remove 4 screws.
Step 14 Slightly lift up BD Mechanism Unit (BRS1P).
Step 15 Remove the BD Mechanism Unit (BRS1P).
Step 16 Attach a short pin to the 45P FFC of the BD Mecha-
nism Unit (BRS1P).
Caution: During assembling, ensure that BD Mechanism
Unit (BRS1P) is properly inserted & fully seated on Bottom
Chassis before screwing.
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