VSX-LX50
34
1
2
3
4
1
2
3
4
C
D
F
A
B
E
C
D
I
nput a digital signal and check
w
ith
the state
w
hich selected the
f
unction.
Check the path to the
microcomputer.
I
C601
(
Pin 1
)
XMSW3
I
s the voltage
0
V
?
N
o
Y
es
Check the path to the
microcomputer.
Check the path to the
microcomputer.
I
C651
(
Pin 1
)
H
D
SW
DI
RL
I
C301
(
Pin 23
)
DI
RM
I
s the voltage
0
V
?
N
o
Y
es
N
o
N
o
Replace
I
C301
or
I
C651
(I
C601
)
.
Replace
I
C301
(I
C601
)
or
I
C651.
Y
es
Y
es
I
s there
a master clock
output
(
24.576 MH
z)
?
I
C601
(
Pin 11
)
N
o
Y
es
I
s there
a master clock
input
(
24.576 MH
z)
?
I
s the
voltage o
f
I
C301-pin 31
3.3
V
?
N
o
Replace
I
C301
or
I
C601.
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
I
C651
(
Pin 11
)
N
o
Y
es
I
s there
a master clock
input
(
24.576 MH
z)
?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C301
or
I
C651
(I
C601
)
.
I
C301
(
Pin 24
)
N
o
Y
es
I
s there
a LR clock
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
DI
R
D
Replace
I
C301
or
I
C651
(I
C601
)
.
I
C301
(
Pin 25
)
N
o
Y
es
I
s there
a audio data
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
DI
RB
Replace
I
C301
or
I
C651
(I
C601
)
.
I
C301
(
Pin 26
)
N
o
Y
es
I
s there
a bit clock
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
Replace
I
C301
or
I
C601.
I
C601
(
Pin 2
)
N
o
Y
es
I
s there
a audio data
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C301
(I
C601
)
or
I
C651.
I
C651
(
Pin 2
)
N
o
Y
es
I
s there
a audio data
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C301
or
I
C601.
I
C601
(
Pin 14
)
N
o
Y
es
I
s there
a LR clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C301
(I
C601
)
or
I
C651.
I
C651
(
Pin 14
)
N
o
Y
es
I
s there
a LR clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
I
s the output o
f
I
C301-pin 36
(D
R
E
RR3
)
0
V
?
•
:
KUXJ and KUXJ
/
CA types only