Pioneer SX-LX70SW Service Manual page 38

1
QQ
3 7 63 1515 0
A
I
IC701 (Pin 5)
Is there
No
a audio data
input?
Yes
(FDT)
IC701 (Pin 29)
B
Is there
No
a audio data
output?
Yes
IC751 (Pin 5)
Is there
No
a audio data
input?
C
Yes
LSFD
IC751 (Pin 29)
TE
L 13942296513
Is there
No
a audio data
output?
Yes
IC3101 (Pin 31)
D
Is there
No
a audio data
input?
Yes
E
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F
38
1
http://www.xiaoyu163.com
2
Is there
No
abnormality at the
parts and patterns
in the input path?
Replace IC701.
Is there
No
abnormality at the
parts and patterns
in the output path?
Replace IC701
or IC751.
Is there
No
abnormality at the
parts and patterns
in the input path?
Replace IC701
or IC751.
Is there
No
abnormality at the
parts and patterns
in the output path?
Replace IC751
or IC3101.
Is there
No
abnormality at the
parts and patterns
in the input path?
Replace IC751
or IC3101.
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y
. i
SX-LX70SW
2
http://www.xiaoyu163.com
3
8
Check the following points when the source is
Multi ch.
IC201 (Pin 6) SDTO
Is there
No
a audio data
(with SLch source)?
Yes
IC701 (Pin 8)
Is there
No
a audio data
(with SLch source)?
Yes
IC201 (Pin 5) CDTO
Is there
No
a audio data
(with Cch source)?
Yes
IC701 (Pin 12)
Q Q
3 6 7 1 3
Is there
No
a audio data
(with Cch source)?
Yes
IC701 (Pin 28) (SDT)
Is there
No
a audio data
(with Sch source)?
Yes
IC751 (Pin 8)
Is there
No
a audio data
(with Sch source)?
Yes
(CDT)
IC701 (Pin 27)
Is there
No
a audio data
(with Cch source)?
u163 Yes
J .
3
4
2 9 9 4 2 8
Is there
No
abnormality at the
parts and patterns
in the path?
Failure in 2nd DSP block,
Go to Step 9.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC701.
Is there
No
abnormality at the
parts and patterns
in the path?
Failure in 2nd DSP block,
Go to Step 9.
1 5 0 5 8 2 9 9 4
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC701.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC701
or IC751.
Is there
No
abnormality at the
parts and patterns
in the path?
Replace IC701
or IC751.
Is there
No
abnormality at the
parts and patterns
m
in the path?
Replace IC701
co
or IC751.
4
9 9
2 8 9 9