JVC RX-DV31SL Service Manual page 10

3.1.11 Removing the amp. sub(a) board and amp. sub(b) board
(See Fig.14)
• Prior to performing the following procedures, remove the top
cover, rear panel and amp. board.
(1) From the forward side of the amp. board, disconnect the
amp. sub(a) board from the connector CN203 on the amp
board.
(2) Disconnect the amp. sub(b) board from the connector
CN204 on the amp. board.
3.1.12 Removing the DVD mechanism assembly
(See Fig.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 screw P
and two screws Q attaching the DVD mechanism assem-
bly.
Reference:
• When attaching the screw P, attach the thrust spring
together with it.
• When attaching the screw Q, attach the earth wires to-
gether with them.
(2) Disconnect the DVD mechanism assembly from the con-
nectors CN512 and CN513 on the main board.
(3) Take out the DVD mechanism assembly.
3.1.13 Removing the main board
(See Fig.16)
• Prior to performing the following procedures, remove the top
cover, rear panel, DAC board, DSP board, video jack board,
tuner, amp. board and DVD mechanism assembly.
(1) From the top side of the main body, disconnect the fan mo-
tor wire from the connector CN122 on the main board.
(2) Disconnect the card wire from the connector CN125 on the
main board.
(3) Disconnect the wire from the connector CN121 on the main
board.
(4) Disconnect the parallel wire from the connector CN291 on
the main board.
(5) Remove the five screws R attaching the main board.
Reference:
Remove the barrier, DSP connector board and amp. connec-
tor board as required.
1-10 (No.22023)
Amp. sub (b) board
Amp. board
CN204
Fig.14
P
Thrust spring
CN512
Q
DVD mechanism Q
assembly
Fig.15
DSP connecter
R
board
Barrier
R
CN125 CN121 CN291
Fig.16
Amp. sub (a) board
CN203
CN513
Earth wires
Amp.
Main board
connector
board
CN122
Fan
motor
wire
Card
wire
Parallel wire
Wire