1-12 (No.MB427)
3.1.8 Removing the main board
(See Fig. 11)
• Prior to performing the following procedures, remove the metal
cover, rear panel, audio & digital input board and tuner.
(1) From the top side of the main body, remove the screw R at-
taching the bracket board and take the bracket board.
(2) Remove the screw S and screw S' attaching the main
board on the bottom chassis.
Reference:
When attaching the screw S', attach the wire protection
board with it.
(3) Take out the wire protection board, and disconnect the
card wires from the connectors (CN401
to CN403) on the
main board.
Reference:
When attaching the wire protection board, attach the
wire protection board after connecting the card wires to
the connectors (CN401
to CN403) on the main board.
(4) Disconnect the card wires from the connectors (CN450,
CN460
) on the main board.
(5) Disconnect the parallel wires from the connectors (CN404
to CN407, CN456 and CN457) on the main board.
(6) Take out the main board from the main body.
Fig.11
Main board
S
R
S'
Bracket
board
CN404
CN407
CN406
Bottom chassis
CN405
CN402CN401
Wire protection board
CN457
CN460
CN456
CN403
CN450