1-12 (No.MB294)
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
Q
attaching the wire protection board to the main board.
(2) 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.
(3) Disconnect the card wires from the connectors (
CN450
and
CN460
) on the main board.
(4) Disconnect the parallel wires from the connectors (
CN404
to
CN407
,
CN456
and
CN457
) on the main board.
(5) Remove the two screws
R
and screw
R’
attaching the main
board on the bottom chassis.
Reference:
When attaching the screw
R’
, attach the earth wire with
it.
(6) Take out the main board from the main body.
Fig.11
Main board
R
R'
Q
Bottom chassis
Earth wire
CN404
CN407
CN406
CN405
CN402
CN401
Wire protection board
CN457
CN460
CN456
CN403
CN450
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