VSX-52TX
131
5
7
8
5
6
7
8
C
D
F
A
B
E
Replace IC801
Is pin 4
outputting it?
SurroundBack L/R data (pin 4)
No
Yes
Replace IC801
Is pin 5
outputting it?
Center/LFE data (pin 5)
No
Yes
Replace IC801
Is pin 6
outputting it?
Surround L/R data (pin 6)
No
Yes
Replace IC801
Is pin 7
outputting it?
Front L/R data (pin 7)
No
Yes
End
End
Is
about 3.3V
outputting it
during above
operation?
Replace IC801
No
Yes
Is
about 0V
outputting it
after above
operation?
Replace IC801
No
Yes
IC801
Replace IC851
There is movement
when turned MCACC
to ON and does
movement stop
within 3 seconds?
Slave Select (pin 1)
DATA Out (pin 2)
DATA In (pin 5)
Clock In (pin 6)
No
Yes
IC851
BUSY (pin 70)
IC801
Step 7: ROM
Step 8: DSP output (digital)
• Digital output when indicating each channel
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TEL 13942296513
9
9
2
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4
2
9
8
0
5
1
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6
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Q
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299