JVC RX-F31S Service Manual page 9

3.1.13 Removing the fan motor
(See Fig.10)
• Remove the top cover.
(1) Form the top side of the main body, remove the tie bands
bundling the wires.
Reference:
After reassembling, bundle the wires with the new tie
bands as before.
(2) Disconnect the wire from the connector
mother board.
(3) Remove the two screws K attaching the fan motor assem-
bly on the chassis base assembly.
(4) Take out the fan motor assembly from the main body.
(5) Remove the two screws M attaching the fan motor on the
fan holder.
3.1.14 Removing the gate drive-1 board
(See Fig.11)
• Remove the top cover and DSP board.
From the top side of the main body, disconnect the connectors
(CN811, CN911) on the gate drive-1 board from the main ampli-
fier board in an upward direction.
3.1.15 Removing the speaker relay board
(See Fig.11)
• Remove the top cover and DSP board.
(1) From the top side of the main body, disconnect the parallel
wire from the connector
(2) Disconnect the speaker relay board from the main amplifier
board while releasing the claw j of the connector
the main amplifier board.
Note:
When releasing the claw j, take care not to break it.
3.1.16 Removing the vol IC board
(See Fig.11)
• Remove the top cover and DSP board.
(1) From the top side of the main body, disconnect the card
wire from the connector
(2) Disconnect the vol IC board from the main amplifier board
while releasing the claw k of the connector
input mother board.
Note:
When releasing the claw k, take care not to break it.
(3) Disconnect the connector
the main amplifier board in an upward direction.
CN552 on the input
CN301 on the speaker relay board.
CN392
CN518 on the vol IC board.
CN501
CN512 on the vol IC board from
Chassis base assembly
Tie bands
K
Input mother board
Vol IC board
on
Speaker relay board
Vol IC
board
on the
Input mother board
Fan holder
M
K
Fan motor assembly
CN552
Fig.10
Main amplifier board
Gate drive-1 board
CN512
CN811
CN911
Speaker
CN518
terminal board
Speaker
j
relay board
k
CN319
CN501
Speaker
terminal board
Fig.11
Fan motor
CN301
(No.MB449)1-9