JVC RX-F31S Service Manual page 13

3.1.21 Removing the regulator connect board
(See Fig.17)
• Remove the top cover, tuner, DSP board, master clock board,
gate drive-2 board, S.S. setup board, gate drive-1 board, vol IC
board and main amplifier board.
(1) From the forward side of the main amplifier board, discon-
nect the parallel wire from the connector
ulator board.
(2) Disconnect the regulator connect board from the main am-
plifier board while releasing the claws (n, p) of the connec-
tors (CN703, CN704) on the main amplifier board.
Note:
When releasing the claws (n, p), take care not to break them.
3.1.22 Removing the regulator board
(See Fig.18)
• Remove the top cover, tuner, DSP board, master clock board,
gate drive-2 board, S.S. setup board, gate drive-1 board, vol IC
board, main amplifier board and regulator connect board.
(1) From the forward side of the main amplifier board, remove
the tie band fixing the wire.
Reference:
After reassembling, fix the wire with a new tie band as
before.
(2) From the front side of the main amplifier board, remove the
two screws S attaching the TR bracket to the heat sink.
3.1.23 Removing the regulator connect board
(See Fig.19)
• Remove the top cover, tuner, DSP board, master clock board,
gate drive-2 board, S.S. setup board, gate drive-1 board, vol IC
board, main amplifier board, regulator connect board and reg-
ulator board.
(1) From the back side of the main amplifier board, remove the
four screws T attaching the FET bracket to the heat sink.
(2) Remove the cooling rubbers on the heat sink from the FET
bracket and remove the heat sink from the main amplifier
board in the direction of the arrow.
All manuals and user guides at all-guides.com
CN705 on the reg-
Regulator
connect board
p
CN704
Main amplifier board
Regulator connect board
CN705
Main amplifier board
Fig.17
Heat sink
Regulator board
S
TR bracket
Fig.18
Heat sink
Cooling rubber
T
Main amplifier board
Fig.19
Regulator
connect board
n
CN703
Main amplifier board
Regulator board
Tie band
S
Cooling rubbers
T
FET bracket
(No.MB449)1-13