JVC UX-S77 Service Manual page 12

3.1.8 Removing the main board (See Fig.17)
• Prior to performing the following procedures, remove the side
panels L/R, top cover assembly and rear cover.
Reference:
Remove the tuner as required. (See 3.1.6 "Removing the tuner")
(1) From the right side of the main body, remove the two
screws N attaching the main board.
(2) Remove the main board to the direction of this side and dis-
connect the connectors
board.
(3) From the forward side of the main board, disconnect the
card wires from the connectors CN700,
on the main board.
(4) Disconnect the wire from the connector
ward side of the main board.
3.1.9 Removing the power supply board (See Fig.18)
• Prior to performing the following procedures, remove the side
panels L/R, top cover assembly and rear cover.
Reference:
Remove the tuner as required. (See 3.1.6 "Removing the tuner")
(1) From the left side of the main body, remove the two screws
P attaching the power supply board.
(2) Cut off the tie band bundling the power cord.
(3) Remove the power supply board toward this side and dis-
connect the connector
(4) From the forward side of the power supply board, discon-
nect the power cord and wires from the connectors CN901,
CN904, CN905 and CN907
Reference:
• When connecting the wires to the connectors
CN905 on the power supply board, bundling the wires with
the wire clamps as before.
• After connecting the power cord to the connector
the power supply board, bundle the power cord with the new
tie band as before.
1-12 (No.MB230)
CN761 and CN762 on the main
CN763 and
CN767 on the for-
CN902 on the power supply board.
on the power supply board.
CN904
CN901
Card wire
CN700
CN764
N
CN767 Card wire
Wires
Power supply board
and
CN907
on
Tie band
Power cord
CN764 Card wire Main board
N
CN762 CN761
CN763
Fig.17
CN905
CN904
Wire clamps
CN905
CN904
CN902 CN902
P P
Fig.18