JVC KW-XC939 Service Manual page 7

3.1.4 Removing the top chassis assembly and bottom
chassis assembly
(See Fig.5 to 7)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket and heat sink.
(1) From the back side of the main body, disconnect the card
wire from the connector
top chassis assembly. (See Fig.5)
(2) From the both side of the main body, remove the three
screws G attaching the bottom chassis assembly. (See
Figs.6, 7)
(3) Release the four joints b using a screwdriver, and then re-
move the top chassis assembly upward from the bottom
chassis assembly. (See Figs.6, 7)
3.1.5 Removing the main board
(See Fig.8)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, top chassis assembly
and bottom chassis assembly.
(1) From the bottom side of the top chassis assembly, remove
the three screws H attaching the main board.
(2) Disconnect the connector
take out the main board from the top chassis assembly.
Reference:
• When attaching the main board, joint the hole of the main
board in joint c of the top chassis assembly.
CN702 on the main board in the
CN501 on the main board, and
CN702
Card wire
Fig.5
Top chassis assembly
G
Bottom chassis assembly
Fig.6
Top chassis assembly
Joints b
Bottom chassis assembly
Fig.7
Main board
Top chassis assembly
H
H
Fig.8
Main board
G
Joints b
G
CN601
H
Joints c
(No.MA041)1-7