JVC RX-7520VBK Service Manual

RX-7520VBK
1-6
Prior to performin
g
the followin
g
procedure, remove
the top cover and the rear panel
.
Removin
g
the audio board (See Fi
g
.10
)
Disconnect the card wire from connector
C
N4
0
2 on
th
e
aud
io
b
o
a
r
d.
Disconnect the rela
y
board from the audio board and
the power suppl
y
board. (CN291, CN491
)
Disconnect the harness from connector CN471
,
CN472
,
CN473
.
Remove the three screws G attachin
g
the audio
board assembl
y.
Remove the screw H attachin
g
the audio board
assembl
y.
1.
2.
3.
4.
5.
Removin
g
the Heat sin
k
(See Fi
g
.12 to 14
)
Prior to performin
g
the followin
g
procedure, remove
the top cover, the rear panel and audio board
.
Disconnect the harness from connector
C
N241 and
CN203 on the power suppl
y
board respectivel
y.
Disconnect the harness from connector
C
N2
5
1 on
the power transformer board
.
Remove the four screws I and the two screws
J
attachin
g
the main board
.
1.
2.
3.
Removin
g
the main board (See Fi
g
.11
)
Prior to performin
g
the followin
g
procedure, remove
the top cover and main board
.
R
e
mov
e
th
e
two
sc
r
e
w
s
K
attachin
g
the heat sink to
th
e
r
e
v
e
r
se
s
i
de
of m
a
in
b
o
a
r
d.
Disconnect the for connectors with each amp. board,
a
n
d
r
e
mov
e
th
e
m
a
in
b
o
a
r
d.
R
e
mov
e
th
e
fo
u
r
sc
r
e
w
s
M
a
n
d
t
e
n
sc
r
e
w
s
L
attachin
g
the heat sink
.
1.
2.
3.
Fig.10
Fig.13
Fig.11
Fig.12
powe
r
supply
supply
b
o
a
r
d
y
board
y
Power
/
Fus
e
b
o
a
r
d
Rela
y
board
C
N47
3
Audio board
Main board
rear side
Main
b
o
a
r
d
Heat sink
C
N2
91
CN203
CN491
H
G
CN471
C
N4
02
CN472
Pow
e
r
tr
a
n
s
form
er
G
G
CN241
I
I
I
I
J
J
L
L
K
K
M
M
CN251
L
Fig.14
Main board
Rear Rch amp. boar
d
Front Lch amp. board
Front Rch amp. board
Center amp. board
R
ear
L
c
h
amp.
b
oar
d
Heat sink
CN802
CN801
CN302
CN301
CN901

JVC RX-7520VBK Specifications

General

Brand	JVC
Model	RX-7520VBK
Category	Stereo Receiver
Language	English