JVC RX-F31S Service Manual page 7

3.1.4 Removing the tuner
(See Fig.6)
• Remove the top cover.
(1) From the top side of the main body, disconnect the card
wire from the connector
(2) From the back side of the main body, remove the two
screws E attaching the tuner to the rear panel and take out
the tuner.
3.1.5 Removing the DSP board
(See Fig.6)
• Remove the top cover.
(1) From the back side of the main body, remove the five
screws E attaching the DSP board to the rear panel.
(2) From the top side of the main body, disconnect the DSP
board from the vol IC board while releasing the claw c of
the connector CN601 on the DSP board.
Note:
When releasing the claw c, take care not to break it.
(3) Take out the DSP board and disconnect the card wire from
the connector CN602
board.
Reference:
When attaching the DSP board, align the section d of the
speaker relay board in hole on the DSP board.
3.1.6 Removing the master clock board
(See Fig.7)
• Remove the top cover.
(1) From the top side of the main body, remove the screw F.
Reference:
When attaching the screw F, attach the holder with it as
before.
(2) Disconnect the connector
board from the main amplifier board in an upward direction.
3.1.7 Removing the gate drive-2 board
(See Fig.7)
• Remove the top cover.
From the top side of the main body, disconnect the connector
CN311 on the gate drive-2 board from the main amplifier board
in an upward direction.
3.1.8 Removing the S.S. setup board
(See Fig.7)
• Remove the top cover.
(1) From the top side of the main body, remove the tie band fix-
ing the wire.
Reference:
After reassembling, fix the wire with a new tie band as
before.
(2) Disconnect the wire from the connector
setup board.
(3) Disconnect the S.S. setup board from the main amplifier
board while releasing the claw e of the connector
on the main amplifier board.
Note:
When releasing the claw e, take care not to break it.
CN1 on the tuner.
on the forward side of the DSP
CN771 on the master clock
CN725 on the S.S.
CN727
CN601
c
Tuner
DSP board
CN1
Rear panel
E
Fig.6
Gate drive-2 board
Main amplifier board
CN771 CN311
Holder
F
Master clock board
Speaker terminal board
Fig.7
Vol IC DSP board
board
CN601
CN602
d
Speaker relay board
Rear panel
E
S.S. setup board
Tie band
CN725
S.S. setup
e
board
CN727
(No.MB449)1-7