JVC RX-7032VSL Service Manual page 9

3.8 Removing the main board
(See Fig.9)
• Prior to performing the following procedures, remove the top
cover.
(1) From the top side of the main body, remove the tie bands
bundling the wires.
(2) Remove the tie band and wire protection board bundling
the card wire.
(3) Disconnect the wire from the connector
er transformer board 1.
(4) Disconnect the relay board from the connectors (CN71,
CN81) on the power supply board and micon board.
(5) Disconnect the parallel wires from the connectors
(CN831,CN881) on the main board.
(6) Disconnect the
(CN723,CN813,CN814) on the main board.
(7) Disconnect the wire from the connector
ter board.
(8) Disconnect the wire from the connector
board(L).
(9) Disconnect the wire from the connector
round back board.
(10) Disconnect the wire from the connector
board(R).
(11) Remove the screw K, five screws L, screw M and two
screws N attaching the main board.
(12) Take out the main board.
3.9 Removing the heat sink
(See Figs.10 and 11)
• Prior to performing the following procedures, remove the top
cover and main board.
(1) From the reverse side of the main board, remove the two
screws P attaching the main board to the heat sink. (See
Fig.10.)
(2) Disconnect the connectors (CN701-CN706) on the main
board, remove the main board. (See Fig.10.)
(3) Remove the twelve screws Q attaching the heat sink. (See
Fig.11.)
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CN811 on the pow-
wires from the connectors
CN722 on the cen-
CN714 on the front
CN717 on the sur-
CN719 on the front
Front board(L)
Front board(R)
Surround board
CN881
Tie band
Tie band
CN717
L
Wire
protection
board
M
Card wire
N
Main
board
CN723
N
CN814 CN831
CN719
Micon board
CN813
Fig.9
Heat sink
P
CN704 CN702
CN703 CN701
Fig.10
Heat sink
Fig.11
Center board
Tie bands
CN71
CN811
L
Power
supply
board
Power
transformer
board 1
Tie bands
Relay
board
K
CN81
CN722
CN714
Main board
P
CN706
CN705
Q
Q
(No.MB003)1-9