3.1.9 Removing the main board (See Figs.14 and 15) � Remove the metal cover, video board and heat sink with power amp. boards. (1) From the top side of the main body, disconnect the card wires from the connectors CN400, CN401 and CN403 to CN405, on the main board. (See Fig.14.) (2) Disconnect the wires from the connectors CN102, CN101 on the main board. (See Fig.14.) Reference: After connecting the wires, fix the wires with the wire clamp. (3) Remove the two screws P attaching the main board to the chassis base. (See Fig.14.) (4) From the back side of the main body, remove the three screws Q attaching the main board to the rear panel. (See Fig.15.) (5) Take out the main board from the main body.