JVC RX-5042S Service Manual page 8

3.6 Removing the front board
(See Fig.7)
• Prior to performing the following procedures, remove the top
cover, rear panel, DSP board, audio input board, DVD board,
video board and tuner.
(1) From the top side of the main body, disconnect the card
wire from the connector
(2) Disconnect the relay board from the connectors (CN291,
CN491) on the power supply board and front board.
(3) Disconnect the wires from the connectors CN471,
and CN473 on the front board.
(4) Remove the two screws F attaching the front board.
(5) Loosen the screw G attaching the front board.
(6) Take out the front board from the main body.
3.7 Removing the speaker terminal board
(See Fig.8)
• Prior to performing the following procedure, remove the top
cover and rear panel.
From the top side of the main body, remove the solders from
the soldered sections a on the speaker terminal board.
1-8 (No.MB171)
on the front board.
CN402
CN472
Card wire
Relay board
CN471
CN473
CN472
F
CN402
Front board
Fig.7
Soldered sections a
Speaker terminal board
Fig.8
Power supply board
CN291
G
CN491
F
Parallel wires