Panasonic TC-L39EM6X Service Manual page 53

11.3. P-Board
1. Remove the 4 screws.
2. Disconnect the key board connectors (P1) & P-board connectors (PW P1, PW P2)
3. Remove the P-Board.
4. Remove the key button & key board.
11.4. M-Board
1. Remove the 2 screws.
2. Disconnect the connectors (M1,M2, M3,M4).
3. Remove the M-Board. & Side AV Bracket