Pioneer SX-LX70SW Service Manual page 37
Audio multi-channel receiver subwoofer
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Also See for SX-LX70SW:
- Service manual (141 pages) ,
- Operating instructions manual (182 pages) ,
- Operating instructions manual (114 pages)
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5
H
IC701 (Pin 2)
Is there
Is there
No
abnormality at the
a master clock input
parts and patterns
(24.576 MHz)?
in the input path?
Yes
IC751 (Pin 2)
Is there
Is there
No
abnormality at the
a master clock input
parts and patterns
(24.576 MHz)?
in the input path?
Yes
LCKO
IC201 (Pin 79)
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
output?
in the output path?
Yes
IC701 (Pin 3)
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
input?
in the input path?
Yes
IC701 (Pin 31)
(LRCK)
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
output?
in the output path?
Yes
IC751 (Pin 3)
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
input?
in the input path?
Yes
IC751 (Pin 31)
LSLK
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
output?
in the output path?
Yes
IC3101 (Pin 26)
Is there
Is there
No
abnormality at the
a LR clock
parts and patterns
input?
in the input path?
Yes
5
6
No
Replace IC291,
IC701 or IC751.
No
Replace IC291,
IC701 or IC751.
No
Failure in 2nd DSP block.
Go to Step 9.
No
Replace IC701.
No
Replace IC701
or IC751.
No
Replace IC701
or IC751.
No
Replace IC751
or IC3101.
No
Replace IC751
or IC3101.
SX-LX70SW
6
7
IC201 (Pin 77)
BCKO
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
output?
in the output path?
Yes
IC701 (Pin 4)
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
(BCK)
IC701 (Pin 30)
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
output?
in the output path?
Yes
IC751 (Pin 4)
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
IC751 (Pin 30)
LSBK
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
output?
in the output path?
Yes
IC3101 (Pin 27)
Is there
Is there
No
abnormality at the
a bit clock
parts and patterns
input?
in the input path?
Yes
FDTO
IC201 (Pin 7)
Is there
Is there
No
abnormality at the
a audio data
parts and patterns
output?
in the output path?
Yes
I
7
8
A
No
Failure in 2nd DSP block.
Go to Step 9.
B
No
Replace IC701.
No
C
Replace IC701
or IC751.
No
Replace IC701
or IC751.
D
No
Replace IC751
or IC3101.
No
E
Replace IC751
or IC3101.
No
Failure in 2nd DSP block.
Go to Step 9.
F
37
8
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Troubleshooting
