JVC RX-D402B Service Manual page 14

Audio/video control receiver
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3.1.18 Removing the DSP connect board
(See Fig.14)
• Remove the top cover, tuner and DSP board.
(1) Disconnect the wire from the connector
speaker terminal 2 board.
(2) Disconnect the DSP connect board from the input board in
an upward direction while releasing the claw k of the con-
nector
CN502
on the input board.
Note:
When releasing the claw k, take care not to break it.
(3) Disconnect the connector
board from the input board.
3.1.19 Removing the OSD connect 1 board
(See Fig.14)
• Remove the top cover, tuner and DSP board.
(1) Disconnect the wire from the connector
woofer board.
(2) Disconnect the wire from the connector
connect 1 board.
(3) Disconnect the OSD connect 1 board from the main ampli-
fier board in an upward direction while releasing the claw m
of the connector
CN222
Note:
When releasing the claw m, take care not to break it.
3.1.20 Removing the input board
(See Fig. 15)
• Remove the top cover, HDMI board, rear panel, tuner, sub-
woofer board, DSP board, compulink board and DSP connect
board.
(1) Disconnect the wire from the connector
connect 1 board.
(2) Disconnect the wires from the connectors (CN530, CN531,
CN552) on the input board.
(3) Disconnect the parallel wire from the connector
the input board.
(4) Remove the three screws V and take out the input board
from the main body.
1-14 (No.MB448)
CN209
on the
CN516
on the DSP connect
CN524
on the sub-
CN513
on the OSD
on the main amplifier board.
CN513
on the OSD
CN540
DSP connect
board
k
CN502
Input board CN513
CN516
DSP connect board
CN540
CN552
on
V
Input board
OSD connect 1
board
m
CN222
Main amplifier board
CN209
CN524
Speaker terminal
2 board
Subwoofer
OSD connect 1 board
Fig.14
OSD connect 1 board
CN531
CN513
CN530
V
Fig.15
board

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