Pioneer VSX-2016AV-S Service Manual page 222

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3 7 63 1515 0
A
Video converter section
Step 3-1: Power Supply
5 V (VIDEO BUFFER)
V+5A
No
Is the voltage
5 V?
Yes
3.3 V
IC903 (Pin 3)
B
No
Is the voltage
3.3 V?
Yes
3.3 V (VIDEO DEC)
V+3DE
No
Is the voltage
3.3 V?
C
Yes
3.3 V (VIDEO DEC)
3.3V_DE1
TE
L 13942296513
No
Is the voltage
3.3 V?
Yes
3.3 V (VIDEO DEC)
3.3V_EN1
D
No
Is the voltage
3.3 V?
Yes
3.3 V (VIDEO ENC)
3.3V_EN2
No
Is the voltage
3.3 V?
Yes
E
1.8 V (VIDEO DEC)
IC904 (Pin 1)
No
Is the voltage
1.8 V?
Yes
www
1.8 V (VIDEO DEC)
1.8V_DE1
No
F
Is the voltage
1.8 V?
Yes
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V+5A
Check the patterns in the path
and R1001.
If R1001 is failure, replace R1001.
V+3R3VC
Check the patterns in the path
and R902 and IC903.
If R902 or IC903 is failure,
replace R902 or IC903.
V+3DE
Check the patterns in the path
and L401.
If L401 is failure, replace L401.
3.3V_DE1
Check the patterns in the path
and L404.
If L404 is failure, replace L404.
3.3V_EN1
Check the patterns in the path
and L701.
If L701 is failure, replace L701.
3.3V_EN2
Check the patterns in the path
and L702.
If L702 is failure, replace L702.
V+1R8VC
Check the patterns in the path
and D903 and IC904.
If D903 or IC904 is failure,
replace D903 or IC904.
x ao
y
1.8V_DE1
. i
Check the patterns in the path
and L402.
If L402 is failure, replace L402.
VSX-2016AV-S
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3
8
1.8V_DE2
Is the voltage
1.8 V?
Yes
Step 3-2: Video Input
CN1002 (Pin 1)
Is there a
composite
signal?
Yes
CN1002 (Pin 5)
Is there a
Y signal?
Yes
CN1002 (Pin 7)
Q Q
3 6 7 1 3
Is there a
C signal?
Yes
CN1002 (Pin 13)
Is there a
Y signal?
Yes
CN1002 (Pin 15)
Is there a
Pb signal?
Yes
CN1002 (Pin 17)
Is there a
Pr signal?
Yes
u163
.
E
3
4
2 9 9 4 2 8
1.8 V (VIDEO DEC)
1.8V_DE2
No
Check the patterns in the path
and L403.
If L403 is failure, replace L403.
CVBS IN
a
No
Diagnose the MAIN CONTROL
Assy or COMPOSITE Assy.
SY IN
a
No
Diagnose the MAIN CONTROL
Assy or S-VIDEO Assy.
SC IN
a
1 5 0 5 8 2 9 9 4
No
Diagnose the MAIN CONTROL
Assy or S-VIDEO Assy.
Y IN
a
No
Diagnose the MAIN CONTROL
Assy or COMPONENT Assy.
Pb IN
a
No
Diagnose the MAIN CONTROL
Assy or COMPONENT Assy.
Pr IN
a
No
Diagnose the MAIN CONTROL
Assy or COMPONENT Assy.
m
co
4
9 9
2 8 9 9