JVC RX-D301S Service Manual page 12

3.1.12 Removing the PWM modulation 1 board
(See Fig.9)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) Disconnect the wire from the connector
PWM modulation 2 board.
(2) Disconnect the wires from the connectors (CN311, CN312,
CN313) on the PWM modulation 1 board.
(3) Disconnect the connector
1 board from the main amplifier board in an upward direc-
tion.
Note:
When removing the PWM modulation 1 board, take care not to
break the claw of the connector on the main amplifier board.
3.1.13 Removing the PWM modulation 2 board
(See Fig.9)
• Remove the top cover.
(1) From the top side of the main body, disconnect the wires
from the connectors (CN411, CN412, CN413) on the PWM
modulation 2 board.
(2) Disconnect the connector
2 board from the main amplifier board in an upward direc-
tion.
Note:
When removing the PWM modulation 2 board, take care not to
break the claw of the connector on the main amplifier board.
3.1.14 Removing the fan motor
(See Fig.10.)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) Disconnect the wire from the connector
amplifier board.
(2) Remove the two screws N and take out the fan motor as-
sembly.
(3) Remove the two screws P attaching the fan motor to the
fan bracket.
1-12 (No.MB479)
CN413 on the
CN301 on the PWM modulation
CN401 on the PWM modulation
CN103 on the main
Main amplifier board
CN401
CN301
CN312
CN412
CN413
PWM modulation 2 board
Fig.9
Fan motor assembly
Fan motor
P
P
Fan bracket
Fig.10
PWM modulation 1 board
CN311
CN313
CN411
Main amplifier board
CN103
N
N