VSX-LX50
35
5
6
7
8
5
6
7
8
C
D
F
A
B
E
D
E
DI
RM
I
C481
(
Pin 11
)
Y
es
Y
es
Replace
I
C301
or
I
C651.
I
C601
(
Pin 5
)
R
IN
, L
IN
I
C481
(
Pins 1,2
)
N
o
I
s there
a bit clock
input?
N
o
Replace C
N
402.
Replace
I
C481.
I
s there
abnormality at the
parts and patterns
in the input path?
Y
es
Replace
I
C301
(I
C601
)
or
I
C651.
I
C651
(
Pin 5
)
N
o
N
o
I
s there
a bit clock
input?
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Can
observe the analog
input signal at
C
N
402-pins 1, 3?
N
o
N
o
Repair the analog
signal route o
f
the main unit.
N
o
I
s not
there poor contact
o
f
C
N
402-pins
1,3?
Replace
I
C301
or
I
C601.
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
Replace
I
C301
(I
C601
)
or
I
C651.
I
s there
a LR clock
input?
S
tep
4-
2
:
When
a
sound
is
not
out
with
the
analog
signal
input
To Step 5-1
I
s there
a analog input
signal?
Y
es
Y
es
Y
es
Y
es
XMSW3
I
C601
(
Pin 1
)
Check the parts and patterns
in the path on the
D
SP Assy.
Check the
analog signal path
o
f
the main
unit.
N
o
I
s there
a
DI
RM output
o
f
I
C301-pin 23
?
I
s the voltage
o
f
P
DN
input signal
at
I
C301-pin 31
3.3
V
?
N
o
Y
es
N
o
Check the parts and
patterns in the input path.
Check the path to the microcomputer.
Check the path to
the microcomputer.
I
s the
D
R
E
RR3 output
o
f
I
C301-pin 36
0
V
?
N
o
If
there is not
f
ailure o
f
a pattern,
replace
I
C301 or
I
C481 or
I
C651
(I
C601
)
.
Replace
I
C301 or
I
C481 or
I
C651
(I
C601
)
.
I
s the voltage
0
V
?
N
o
Y
es
H
D
SW
I
C651
(
Pin 1
)
Check the path to the microcomputer.
I
s the voltage
0
V
?
N
o
Y
es
I
s there
a master clock
input?
(
24.576 MH
z)
DI
RL
I
C481
(
Pin 10
)
N
o
I
s there
a
DI
RL output
o
f
I
C301-pin 24
?
Y
es
Check the parts and
patterns in the input path.
I
C601
(
Pin 11
)
Y
es
N
o
I
s there
a master clock
input?
(
24.576 MH
z)
N
o
N
o
I
s there
abnormality at the
parts and patterns
in the input path?
I
C651
(
Pin 11
)
Y
es
Y
es
N
o
I
s there
a master clock
input?
(
24.576 MH
z)
•
:
KUXJ and KUXJ
/
CA types only
