JVC RX-D301S Service Manual page 16

3.1.22 Removing the OSD connect 1 board
(See Fig.17)
• Remove the top cover, front video board and volume board.
Reference:
Remove the tie band bundling the wires.
(1) Disconnect the wire from the connector
woofer board.
(2) Disconnect the wire from the connector
connect 1 board.
(3) Disconnect the connector
board from the main amplifier board in an upward direction.
Note:
When removing the OSD connect 1 board, take care not to
break the claw of the connector on the main amplifier board.
3.1.23 Removing the master clock board
(See Fig.18)
• Remove the top cover, tuner, front video board, PWM modula-
tion 1 board, PWM modulation 2 board, volume board and
OSD connect 1 board.
(1) Remove the two screws Y with a short driver and remove
the transistor hold from the joints g of the heat sink.
(2) Disconnect the wire from the connector
amplifier board.
(3) Take out the master clock board from the main body.
1-16 (No.MB479)
CN524 on the sub-
CN513 on the OSD
CN522 on the OSD connect 1
CN201 on the main
OSD connect 1 board
Main amplifier board
CN522
CN513
Subwoofer board
Fig.17
Heat sink
Transistor hold
g
CN201
Y
Main amplifier board
Fig.18
CN524
g
Master clock board