JVC RX-7030VBK Service Manual page 7

2.7 Removing the speaker board
(See Fig.8)
• Prior to performing the following procedures, remove the top
cover and rear panel.
(1) From the top side of the main body, remove the tie band
bundling the wires.
(2) Disconnect the wires from the connectors (CN813,CN814)
on the main board.
(3) Disconnect the parallel wire from the connectors
(CN931,CN932) on the micon board.
(4) Take out the speaker board in the direction of the arrow.
2.8 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 CN811 on the pow-
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 CN722 on the cen-
ter board.
(8) Disconnect the wire from the connector CN714 on the front
board(L).
(9) Disconnect the wire from the connector CN717 on the sur-
round back board.
(10) Disconnect the wire from the connector CN719 on the front
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.
wires from the connectors
Micon board Main board
CN814 CN813
Fig.8
Surround
Front board(R)
board
CN881
Tie
L
CN717
band
Tie band
Wire
protection
board
M
Card wire
N
Main
board
CN723
CN719 N
CN814
CN831
Micon board
CN813
Fig.9
Heat sink
Fig.11
Tie band
CN931
CN932
Speaker board
Front board(L)
Center board
Power
CN811
L supply
CN71
board
Power
transformer
board 1
Tie bands
Relay board
K
CN81
CN722
CN714
Q
Q
(No.22058)1-7