JVC TH-S3 Service Manual page 12

3.1.8 Removing the main board
(See Figs.12 and 13)
• Remove the metal cover.
(1) From the top side of the main body, disconnect the card
wires from the connectors (CN341,
the main board. [B/E/EN/EV/EE version] (See Fig.12.)
(2) From the top side of the main body, disconnect the card
wires from the connectors
board. [A version] (See Fig.12.)
(3) Disconnect the wires from the connectors (CN190, CN430,
CN901) on the main board. (See Fig.12.)
Reference:
After connecting the wires to the connectors (CN190,
CN901), fix the wires with the wire holder. (See Fig.12.)
(4) Disconnect the power cord and wire from the connectors
(CN950, CN953) on the transformer board. (See Fig.12.)
(5) Remove the three screws J and screw J' attaching the
main board on the chassis base. (See Fig.12.)
Reference:
When attaching the screw J', attach the wire holder with
it. (See Fig.12.)
(6) From the back side of the main body, remove the six
screws K attaching the main board to the rear panel. (See
Fig.13.)
(7) Release the engagement sections g and remove the rear
panel together with the scart terminal board and tuner as-
sembly. (See Fig.13.)
(8) Take out the main board from the main body.
Reference:
When attaching the main board, align the hole on the main
board to the projections h of the chassis base before attaching
the screws J and J'. (See Fig.12.)
1-12 (No.MB187)
CN422 to CN428) on
(CN422 to CN428) on the main
Transformer board
Wires
Wire holder
CN190
CN901
J'
h
CN953
J
CN426
CN950
Power cord
CN430
CN424
CN341
Fig.12
Rear panel
g
Fig.13
Main board
CN428
Card wires
CN423
Card wires
h
Chassis
base
Card wire
J J
CN427
CN422
CN425
K g