Panasonic TH-L42U5D Service Manual page 34

11.3. Remove AC cord
1. Remove the bushing of the AC cord from the AC cord bracket.
2. Disconnect the connector (P1) of AC cord.
11.4. P-Board
1. Remove the 6 screws.
2. Disconnect the connectors (P2, P3).
3. Remove the P-Board.