JVC RX-7000RBK Service Manual page 5

Removing the main board / regulator
board (See Fig.10 to 12)
Prior to performing the following procedure, remove
the top cover and the rear panel.
ATTENTION: It is not necessary to remove the
boards connected to the back of the
main board. But to disassemble the
main board and the power supply
board efficiently, remove them.
1. Disconnect the card wire from connector CN400 on
the main board.
2. Cut off the four tie bands fixing the harnesses.
3. Disconnect the harness from connector CN811 on
the power transformer board.
4. Disconnect the relay board 1, 2 and 3 from the main
board and the power supply board.
5. Disconnect the harness from connector CN704,
CN821, CN901, CN711, CN712, CN931 and CN932,
CN961.
6. Remove the screw G attaching the regulator board
to the heat sink cover.
7. Remove the eight screws H
board to the heat sink cover.
8. Remove the five screws I and the screw J attaching
the main board to the chassis base (The resistor
board will come off at the same time).
Removing the resistor board (See Fig.13)
Prior to performing the following procedure, remove
the top cover.
1. Disconnect the harness from connector CN881 on
the resistor board.
2. Remove the screw J attaching the resistor board.
Main board
CN400
Tie band
Main board
attaching the main
CN821 CN704
CN901
CN931
CN932
CN712
CN711
Fig.10
H
H H H
Fig.11
I
I
Main board
Fig.12
Main board
Resistor board
CN881
Fig.13
RX-7000RBK
Relay board 1
Relay board 2
Power supply
board
CN811
Relay
board 3
Power
transformer
Tie band
CN961
G
Regulator board
I
J
Resistor board
Power
transformer
J
1-5