VSX-1017AV-K
37
5
6
7
8
5
6
7
8
C
D
F
A
B
E
•
When
a
sound
is
not
output
in
the
XM
antenna
input.
(SurroundBack
is
not
output
by
setting.)
•
Suppose
CR
to
be
poor
contact
and
that
is
not
damaged.
•
T
his
shows
failure
analysis
of
DSP
Assy.
Step
2:
BtoB
connector
and
FFC
Step
1:
MUTE
pin
C
N
901,
C
N
701,
C
N
95
2
Are
the
connectors
securely
inserted
?
T
urn
the
power
off
and
insert
the
connectors
securely.
N
o
Replace
I
C801.
Replace
I
C
4
0
2
.
Replace
I
C901.
Replace
I
C90
2
.
Yes
C
N
95
3
I
s
the
FFC
securely
inserted
?
T
urn
the
power
off
and
insert
the
connectors
securely.
N
o
Yes
T
o
Step
3
T
o
Step
2
T
o
Step
4
Step
0:
Preliminary
confirmation
Confirm
the
following
items
before
checking
Do
screws
of
C
O
AX
Jack
securely
tighten
?
T
ighten
screws
securely.
N
o
Yes
T
o
Step
1
I
C801
(Pin
5
4
)
I
s
the
voltage
of
output
signal
0
V
?
N
o
Yes
MU
T
E
BtoB
connector
FFC
Troubleshooting
in
the
XM
mode
(AWX8805
only)
Step
3:
Regulator
IC
Check
the
C
N
901
and
Regulator
assy.
I
C901
(Pin
4
)
I
s
the
voltage
of
around
5
V
to
5.
3
V
input
?
N
o
Yes
(to
chassis)
Check
the
power
supply
path.
I
C
4
0
2
(Pin
1)
I
s
the
voltage
of
around
5
V
to
5.
3
V
output
?
N
o
I
s
the
voltage
of
I
C
4
0
2-
pin
5
around
5
V
to
5.
3
V
input
?
(to
chassis)
I
C90
2
(Pin
5)
I
s
the
voltage
of
1.
2
5
V
output
?
N
o
N
o
(to
chassis)
I
C901
(Pin
5)
I
s
the
voltage
of
3
.
3
V
output
?
N
o
Yes
Yes
Yes
Yes
Yes
Check
the
path
to
the
microcomputer.
I
s
the
voltage
of
I
C
4
0
2-
pin
4
more
than
2
.
4
V
?
N
o
(to
chassis)
Part
shape
and
Pin
arrangement
of
I
C901
and
I
C90
2
Содержание Elite VSX-90TXV
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Страница 126: ...VSX 1017AV K 126 1 2 3 4 1 2 3 4 C D F A B E ...
