VSX-LX50
38
1
2
3
4
1
2
3
4
C
D
F
A
B
E
G
H
Replace
I
C501
or
I
C601.
Replace
I
C501
or
I
C601.
Replace
I
C651
or
I
C601.
Y
es
XMMK
I
C501
(
Pin 43
)
N
o
I
s there
a master clock
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
Replace
I
C501
or
I
C601.
Y
es
XMLK
I
C501
(
Pin 41
)
N
o
I
s there
a LR clock
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
Replace
I
C501
or
I
C601.
Y
es
XM
FD
I
C501
(
Pin 37
)
N
o
I
s there
a audio data
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
Replace
I
C501
or
I
C601.
Y
es
I
C601
(
Pin 3
)
N
o
I
s there
a audio data
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C651
or
I
C601.
I
C651
(
Pin 2
)
N
o
I
s there
a audio data
input?
N
o
Replace
I
C501
or
I
C601.
Y
es
I
C601
(
Pin 13
)
N
o
I
s there
a LR clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C651
or
I
C601.
Y
es
Replace
I
C501
or
I
C601.
XMBK
USB
IN
I
C501
(
Pin 39
)
N
o
I
s there
a bit clock
output?
N
o
I
s there
abnormality at the
parts and patterns
in the output path?
Y
es
Y
es
Replace
I
C501
or
I
C601.
I
C601
(
Pin 6
)
N
o
I
s there
a bit clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Y
es
Replace
I
C651
or
I
C601.
I
C651
(
Pin 5
)
N
o
I
s there
a bit clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Y
es
I
C651
(
Pin 14
)
N
o
I
s there
a LR clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
To Step 5-1
Y
es
I
C601
(
Pin 10
)
N
o
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
I
s there
a master clock input
(
24.576 MH
z)
?
I
C301
(
Pin 46
)
H
D
SW
I
C651
(
Pin 1
)
Y
es
I
C651
(
Pin 11
)
N
o
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
I
s there
a master clock input
(
24.576 MH
z)
?
I
s there
abnormality at the
parts and patterns
in the input path?
S
tep
4-5:
When
a
sound
is
not
with
the
US
B
(
except
K
U
models
)
•
:
KUXJ and KUXJ
/
CA types only
Check the parts and patterns
in the path
f
rom the USB Module.
Can
obsever the digital
signal?
N
o
Y
es
DI
RM
I
s the voltage
0
V
?
N
o
Y
es
I
C301
(
Pin 23
)
Check the path to the microcomputer.
(
0
V
⇔
4
V)