JVC MX-G500 Service Manual page 8

MX-G500
Removing the main board
Prior to performing the following procedure, remove
the metal cover, CD changer unit and rear panel.
1. Disconnect the card wire from the connector FCW3
and the harness from the connector JCW1, JCW2
and HCW3 on the main board.
2. Disconnect the harness from the connector PCW1
on the fuse board.
3. Remove the screw G attaching the main board
holder to the front panel assembly. (See Fig.9)
4. Remove the two screws O attaching the heat sink to
bottom chassis.
Removing the power cord
Prior to performing the following procedure, remove
the metal cover, CD changer unit and rear panel.
1. Disconnect the power cord from the connector
RCW2 on the power supply board and pull up the
power cord stopper upward.
Removing the power ICs
Prior to performing the following procedure, remove
the metal cover, CD changer unit and heat sink &
amp. board.
1. Remove the four screws P attaching the power ICs
to the heat sink.
2. Unsolder the power ICs solder point.
Removing the power transformer
Prior to performing the following procedure, remove
the metal cover, CD changer unit and heat sink &
amp. board.
1. Disconnect the power cord from the connector RCW2
on the power supply board.
2. Disconnect the harness from the connector PCW1 on
the fuse board.
3. Remove the four screws Q attaching the power
transformer and the screw R attaching the earth
terminal on the bottom chassis.
1-8
(See Fig. 14)
(See Fig. 14)
(See Fig.15 and 16)
(See Fig .17)
Fuse board
PCW1
Power supply
board
RCW2
Power cord
Power cord
stopper
Bottom chassis
Fig.14
Fig.15
Power ICs solder point
Fig.16
Power transformer
Q
Bottom chassis
Fig.17
FCW3
JCW2
JCW1
Main board
HCW3
Heat sink
O
P
Heat sink
Amp. board
Heat sink
Amp. board
(reverse side)
PCW1
Fuse board
R
Power supply
board
RCW2