Trouble Shooting - Pioneer VSX-D2011-S Service Manual

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7.1.3 TROUBLE SHOOTING

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• When a sound is not out in the surround mode with the digital signal input.
• Suppose CR to be poor contact and that is not damaged.
• This shows failure analysis of DSP Assy.
Step 1
CN101
FFC inserted
tight ?
CN601
FFC inserted
tight ?
CN102
connector
inserted
tight ?
End
TE
L 13942296513
Step 2
IC901
there the input
of 5V ?
Is 3.3V
outputting it ?
IC902
Is 1.8V
outputting it ?
End
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Is
No
Insert it tight
Yes
Is
No
Insert it tight
Yes
Is
No
Insert it tight
Yes
Is
No
Check CN102
Yes
No
Replace IC901
Yes
No
Replace IC902
Yes
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Step 3
Is SPDIF signal coming ?
(be different with Function)
Coax1 (pin 44)
the poor contact
of lead wire of
CN101-pin 16.
Coax2 (pin 46)
the poor contact
of lead wire of
CN101-pin 14.
Opt in1 (pin 48)
the poor contact
of lead wire of
Q Q
3 6 7 1 3
CN101-pin 12.
Opt in2 (pin 1)
the poor contact
of lead wire of
CN101-pin 10.
RF Demodulator (pin 3)
the poor contact
of lead wire of
CN101-pin 8.
USB (pin 5)
the poor contact
of lead wire of
CN101-pin 6.
u163
.
VSX-D2011-S
6
7
2 9 9 4 2 8
IC201
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
so on.
Yes
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
so on.
Yes
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
1 5 0 5 8 2 9 so on. 9 4
Yes
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
so on.
Yes
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
so on.
Yes
Confirm
Check the COXIAL IN Assy
No
or OPTICAL IN Assy and
so on.
m
Yes
co
A
7
8
9 9
A
B
C
2 8 9 9
D
E
F
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