JVC RX-D301S Service Manual page 11

3.1.8 Removing the power transformer
(See Fig.7)
• ReReference:zmove the top cover.
Reference:
Remove the tie bands bundling the wires.
(1) Disconnect the wires from the connectors (CN106, CN111)
on the main amplifier board.
(2) Remove the soldered sections b and remove the wires.
(3) Remove the four screws M and take out the power trans-
former from the main body.
3.1.9 Removing the trans primary board
(See Fig.7)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) Remove the wires from the soldered sections b and re-
move the wires.
(2) Remove the solders from the soldered sections c and re-
move the trans primary board.
3.1.10 Removing the trans secondary board
(See Fig.7)
• Remove the top cover and power transformer.
From the side of the power transformer, remove the solders from
the soldered sections d and remove the trans secondary board.
3.1.11 Removing the DCDC control board
(See Fig.8)
• Remove the top cover.
From the top side of the main body, disconnect the connector
CN152 on the DCDC control board from the main amplifier board
in an upward direction.
Note:
When removing the DCDC control board, take care not to
break the claw of the connector on the main amplifier board.
Trans primary board
b
c
d
Trans secondary
board
M
Power transformer
Fig.7
DCDC control board
CN152
Fig.8
Main amplifier board
M
CN106
CN111
M
Main amplifier board
(No.MB479)1-11