Pioneer VSX-03TXH Service Manual page 48

1
QQ
3 7 63 1515 0
A
[5] HDMI Troubleshooting
A1
• The parts marked like
in "HDMI & DVC Assy Check Points".
Common section
Step 1: Connections
CN1001, CN1002 CN1001, CN1002
Are the
connectors
securely inserted?
B
Yes
Step 2-1: Power supply, CLK
Unreg INPUT
C1001
No
Is the voltage
11 V?
Yes
C
1.8 V
R1031
TE
L 13942296513
No
Is the voltage
1.8 V?
Yes
R1008 3.3 V
D
No
Is the voltage
3.3 V?
Yes
3.3 V
R1009
No
Is the voltage
3.3 V?
E Yes
C1073 5 V
No
Is the voltage
5 V?
www
Yes
F
48
1
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2
in the following chart are located
A1
A2
No
Insert the connectors
securely.
B1
Check the MAIN Assy or DC/DC
ASSY.
V+1R8H
Check the soldering of IC1001 and
the peripheries of IC1001.
If soldering has not been done
correctly, replace IC1001.
V+3R3_1
Check the soldering of IC1001 and
the peripheries of IC1001.
If soldering has not been done
correctly, replace IC1001.
V+3R3_2
Check the soldering of IC1001 and
the peripheries of IC1001.
If soldering has not been done
correctly, replace IC1001.
B2
Check the soldering of IC1071 and
the peripheries of IC1071.
If soldering has not been done
correctly, replace IC1071.
x ao
y
. i
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3
8
IC501 (Pin 13)
Is oscillation
of 15.7 MHz?
Yes
Step 2-2: Reset
CN501 (Pin 12)
Is the voltage
"H" (3.3 V)?
Yes
HDMI (HDMI input)
diagnosis : To Step 3-1
Video converter (Analog input)
Q Q
3 6 7
diagnosis : To Step 4-1
u163
VSX-03TXH
3
4
2 9 9 4
XOUT
C
No
Check the soldering of X501 or
IC501. If soldering has not been
done correctly, replace X501 or
IC501.
HDRST
C
No
Check the parts and patterns in
the path.
No
Check the MAIN Assy.
Scaler diagnosis :
To Step 5-1
Scaler diagnosis :
1 3 1 5 0 5 8 2 9
To Step 5-1
m
co
.
4
2 8
9 9
9 4 2 8 9 9