JVC RX-7030VBK Service Manual page 10

2.13 Removing the power supply board
(See Fig.14)
• Prior to performing the following procedures, remove the top
cover.
(1) From the top side of the main body, disconnect the parallel
wires from the connector CN55 on the power transformer
board 1.
(2) Disconnect the card wire from the connector CN402 on the
power supply board.
(3) Disconnect the relay board from the connector CN71 on
the power supply board.
(4) Remove the three screws U attaching the power supply
board.
(5) Remove the power supply board from the hook d of the
chassis base bracket in the direction of the arrow, take out
the power supply board.
(6) Turn over the power supply board, remove the solders from
the soldered sections e attaching the wires.
2.14 Removing the headphone jack board
(See Figs.14 and 15)
• Prior to performing the following procedures, remove the top
cover and front panel assembly.
(1) From the top side of the main body, remove the tie bands
attaching the parallel wire. (See Fig.14.)
(2) Disconnect the parallel wire from the connector CN881 on
the main board. (See Fig.14.)
(3) From the front side of the main body, remove the nut and
screw V attaching the headphone bracket to the front
bracket. (See Fig.15.)
(4) Remove the three screws U attaching the power supply
board. (See Fig.14.)
(5) Take out the headphone jack board from the inside of the
chassis base while lifting the power supply board.
1-10 (No.22058)
CN71
Tie bands
Main board
CN881
Relay board
Nut
Headphone bracket
CN402 Power supply board
Card wire
Headphone jack
U
board
CN55
U
Soldered
sections e
U
Power
transformer
board 1
Hook d of the chassis
base bracket
Fig.14
V
Headphone jack board
Front bracket
Fig.15