Pioneer SX-LX70SW Service Manual page 37

5
QQ
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H
IC701 (Pin 2)
Is there
a master clock input
(24.576 MHz)?
Yes
IC751 (Pin 2)
Is there
a master clock input
(24.576 MHz)?
Yes
IC201 (Pin 79)
Is there
a LR clock
output?
Yes
IC701 (Pin 3)
TE
Is there
L 13942296513
a LR clock
input?
Yes
IC701 (Pin 31)
Is there
a LR clock
output?
Yes
IC751 (Pin 3)
Is there
a LR clock
input?
Yes
IC751 (Pin 31)
Is there
a LR clock
output?
Yes
www
IC3101 (Pin 26)
Is there
.
a LR clock
input?
Yes
5
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6
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC291,
IC701 or IC751.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC291,
IC701 or IC751.
LCKO
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Failure in 2nd DSP block.
Go to Step 9.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC701.
(LRCK)
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Replace IC701
or IC751.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC701
or IC751.
LSLK
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Replace IC751
or IC3101.
x ao u163
y
Is there
No
No
abnormality at the
i
parts and patterns
in the input path?
Replace IC751
or IC3101.
6
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7
2 9
8
IC201 (Pin 77)
Is there
a bit clock
output?
Yes
IC701 (Pin 4)
Is there
a bit clock
input?
Yes
IC701 (Pin 30)
Is there
a bit clock
output?
Yes
IC751 (Pin 4)
Q Q
3 6 7 1 3 1 5
Is there
a bit clock
input?
Yes
IC751 (Pin 30)
Is there
a bit clock
output?
Yes
IC3101 (Pin 27)
Is there
a bit clock
input?
Yes
IC201 (Pin 7)
Is there
a audio data
output?
Yes co
. I
SX-LX70SW
7
8
9 4 2 8
BCKO
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Failure in 2nd DSP block.
Go to Step 9.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC701.
(BCK)
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Replace IC701
or IC751.
0 5 8 2 9 9 4 2 8
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC701
or IC751.
LSBK
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Replace IC751
or IC3101.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC751
or IC3101.
FDTO
Is there
No
No
abnormality at the
parts and patterns
m
in the output path?
Failure in 2nd DSP block.
Go to Step 9.
9 9
A
B
C
9 9
D
E
F
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