Panasonic TH-L42U5D Service Manual page 35

11.5. M-Board
1. Remove the 3 screws.
2. Disconnect the connectors (P1, P2, P3, P4).
3. Remove the M-Board.
4. Remove the PCB-support.
11.6. Speaker unit
1. Remove the 2 screws.
2. Remove the speaker units.