JVC KW-XC939 Service Manual page 9

3.1.8 Removing the changer control board
(See Fig.11, 12)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, top chassis assembly
and bottom chassis assembly.
(1) m the connector CN972
Fig.11)
(2) From the top side of the bottom chassis assembly, remove
the two screws L attaching the changer control board. (See
Fig.12)
Reference:
• When attaching the changer control board, joint the hole of
the changer control board in joints h of the bottom chassis
assembly.
3.1.9 Removing the mecha control board
(See Fig.13)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, bottom chassis as-
sembly and changer control board.
(1) From the back side of the bottom chassis assembly, re-
move the screw M attaching the mecha control board, and
release the joints i from the bottom chassis assembly.
(2) Disconnect the wire from the connector
card wire from the connector
board.
Reference:
• When attaching the mecha control board, joint the hole of
the mecha control board in joints i of the bottom chassis as-
sembly.
on the changer control board. (See
CN402 and the
CN403 on the mecha control
Changer control board
Bottom chassis assembly
Fig.11
Cassette mechanism assembly
Bottom chassis assembly
L
Changer control board
Fig.12
CN402 CN403
M
Top chassis assembly
Fig.13
CN972
Card wire
L
Joint h
Joint i
Mecha control board
(No.MA041)1-9