JVC RX-DP20VBK Service Manual page 13

3.1.18 Removing the power transformer 3 with the power supply 3 board
(See Fig.17)
• Prior to performing the following procedure, remove the top
cover, power supply 1 board, power transformer 1 and power
transformer 2.
(1) Disconnect the harness from the connector
power supply 3 board.
(2) Remove the two screws M attaching the power transformer
3.
3.1.19 Removing the power/ fuse board
(See Fig.18)
• Prior to performing the following procedure, remove the top
cover, rear panel, power supply 1 board and power transform-
er 2.
(1) Disconnect the harness from the connector
power/ fuse board.
(2) Remove the four screws N attaching the power/ fuse
board.
(3) Unsolder the solder points PW21, PW22,
on the power/ fuse board.
3.1.20 Removing the head phone board
(See Fig.19 and 20)
• Prior to performing the following procedures, remove the top
cover and front panel assembly.
(1) Disconnect the harnesses from the connector
the system control board (see fig.5) and
power amp. board.
(2) Removing the nut O fixing the head phone board.
(3) Removing the screw P attaching the lug wire and bracket.
Lug wire
P
CN41
CN25
PW23 and
CN981
CN738
Bracket
O
Head phone board
Fig.19
on the
M
on the
CN25
N
PW24
on
on the
Barrier
Q
(Front side)
Power supply 3 board
CN41
Power
transformer 3
Fig.17
N
PW23 (red)
PW21 (blue)
PW24 (white)
N
PW22 (brown)
Power/ fuse board
Fig.18
Q
Power
amp.
assembly
Power amp.
R
CN738
Fig.20
(No.22008)1-13
board