Pioneer VSX-1015TX-S Service Manual page 123

5
QQ
3 7 63 1515 0
B
IN4 (CD) (pin 42)
Is pin 42
inputting it?
Yes
Front IN (VIDEO2) (pin 7)
Is pin 7
inputting it?
Yes
MCKO1 (pin 23)
Is master
clock outputting
it?
Yes
TE
L 13942296513
LRCK (pin 24)
Is LR
clock outputting
it?
Yes
SDTO (pin 25)
Is data
outputting
it?
Yes
BCK (pin 26)
www
Is bit
clock outputting
it?
Yes
.
End
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No
Replace IC501
No
Check the FRONT-IN Assy
and related path.
No
PDN (pin 31)
Check the other Assy
Is input No
(the periphery of
signal 5V?
microcomputer)
Yes
XTO (pin 29)
X601 is oscillated only
at analog input.
Does
No
oscillation
stop?
INT0 (pin 36)
Yes
Is output
signal 0V?
Yes
No
Replace IC601
No
Replace IC601
No
Replace IC601
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Step 6: X'tal
pin 2 20MHz
Step 7: DSP output (digital)
• Digital output of each channel in the digital signal
(there is a sound) input.
SurroundBack L/R data (pin 4)
outputting it?
Center/LFE data (pin 5)
Q Q outputting it?
3 6 7 1 3 1 5
Surround L/R data (pin 6)
No
outputting it?
Replace IC601
Front L/R data (pin 7)
outputting it?
co
.
VSX-1015TX-K
7
9 4 2 8
IC802
Is
No
Replace IC802 or X801
outputting
it ?
Yes
End
IC801
No
Is pin 4
Replace IC801
Yes
No
Is pin 5
Replace IC801
0 5 8 2 9 9 4
Yes
No
Is pin 6
Replace IC801
Yes
No
Is pin 7
Replace IC801
Yes
End
m
7
8
9 9
A
B
C
2 8 9 9
D
E
F
123
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