JVC NX-MD1R Service Manual page 7

Removing the system control board
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
1. Remove the screw D attaching the card wire
support board, then remove the card wire support
board.
2. Disconnect the card wires from connectors CN602
and CN605 on the system control board.
3. Remove the two screws E and screw F attaching
the system control board.
4. Disconnect connectors CN603 and CN604 on the
system control board from the connector CN693 on
the regulator board and the CN694 on the repeater
board respectively.
5. Disconnect the wire from connector CN601 on the
system control board.
Removing the main amplifier board
Prior to performing the following procedure, remove
the top cover.
Prior to performing the following procedure, remove
the rear cover.
1. Disconnect the card wires from connectors CN661,
CN695 and CN511 on the main amplifier board.
2. Remove the protector, then remove the screws G
attaching the main amplifier board.
3. Remove the screw H and screw I attaching the
main amplifier board.
4. Remove the screw J attaching the heat sink from
the back side.
5. Disengage claw b on the heat sink and disconnect
the connectors CN901 and CN904 on the main
amplifier board, from connector CN991 on the
repeater board and connector CN994 on the
regulator board respectively.
6. Disconnect the wire from connector CN301 on the
main amplifier board.
(See Fig.4)
(See Fig.5 and 6)
Card wire support board
CN603
System control board
E
Fig.4
CN695
CN511
I
CN901
CN301
Fig.5
Regulator board
Fig.6
NX-MD1R/NX-MD1
CN605
CN602
D
E
CN661
Protector
CN904
Main
amplifier
board
H
G
Claw b
J
F
CN601
CN604
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