Pioneer SX-LX70SW Service Manual page 31

5
QQ
3 7 63 1515 0
C
IC301 (Pin 26)
Is there
a bit clock
output?
Yes
IC651 (Pin 5)
Is there
a bit clock
input?
Yes
To Step 5-1
Step 4-2: When a sound is not out with the analog
signal input
IC3013 (Pins 1,2)
TE
L 13942296513
Is there
a analog input
signal?
Yes
IC651 (Pin 1)
Is the voltage
www
0 V?
Yes
.
5
http://www.xiaoyu163.com
6
DIRB
Is there
No
No
abnormality at the
parts and patterns
in the output path?
Replace IC301
or IC651.
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC301
or IC651.
RIN, LIN
Can
No
No
observe the analog
input signal at
IC3012-pins 3, 5?
Yes
Check the parts and patterns
in the path.
Can
observe the analog
No
signal at IC3011
input by
FUNC selection?
Yes
Check the parts and patterns
in the path.
Check the parts and patterns
in the path of ANALOG FUNC selection
(iPoD, F.AIN, AIN, etc).
HDSW
No
Check the path to the microcomputer.
x ao u163
y
i
6
http://www.xiaoyu163.com
7
2 9
8
IC3013 (Pin 11)
Is there
a master clock
input?
(24.576 MHz)
Yes
If there is not failure of a pattern,
replace IC301 or IC3013 or IC651.
Q Q
3 6 7 1 3 1 5
IC651 (Pin 11)
Is there
a master clock
input?
(24.576 MHz)
Yes
IC3013 (Pin 10)
Is there
a LR clock
input?
Yes
D
co
.
SX-LX70SW
7
8
9 4 2 8
DIRM
Is there
No No
a DIRM output
of IC301-pin 23
?
Yes
Check the parts and
patterns in the input path.
Is the voltage
of PDN input signal
at IC301-pin 31
Is the
3.3 V?
DRERR3 output
of IC301-pin 36
0 V?
Check the path to
No
the microcomputer.
0 5 8 2 9 9 4 2 8
Is there
No
No
abnormality at the
parts and patterns
in the input path?
Replace IC301
or IC651.
DIRL
Is there
No
No
a DIRL output
of IC301-pin 24
?
Yes
Check the parts and
patterns in the input path.
Replace IC301 or IC3013 or IC651.
m
9 9
A
B
No
C
9 9
D
E
F
31
8