Pioneer VSX-1018AH-K Service Manual page 51

5
[5] HDMI Troubleshooting(VSX-1018AH-K, VSX-1018AH-S)
A1
• The parts marked like
in "HDMI Assy Check Points".
Common section
Step 1: Connections
A1
CN1001, CN1002 CN1001, CN1002
A2
Are the
No
connectors
securely inserted?
Yes
Step 2-1: Power supply, CLK
Unreg INPUT
C1001
B1
No
Is the voltage
11 V?
Yes
R1306 1.8 V
V+1R8
No
Check the soldering of IC1001 and
Is the voltage
the peripheries of IC1001.
1.8 V?
If soldering has not been done
correctly, replace IC1001.
Yes
R1307 1.8 V
V+1R8VC
No
Check the soldering of IC1001 and
Is the voltage
the peripheries of IC1001.
1.8 V?
If soldering has not been done
correctly, replace IC1001.
Yes
3.3 V
R1304
V+3R3
No
Check the soldering of IC1001 and
Is the voltage
the peripheries of IC1001.
3.3 V?
If soldering has not been done
correctly, replace IC1001.
Yes
R1305 3.3 V
V+3R3VC
No
Check the soldering of IC1001 and
Is the voltage
the peripheries of IC1001.
3.3 V?
If soldering has not been done
correctly, replace IC1001.
Yes
5
6
in the following chart are located
Insert the connectors
securely
Check the MAIN Assy or DC/DC
ASSY.
6
7
C1073
Is the voltage
5 V?
Yes
IC501 (Pin 13)
Is oscillation
of 15.7 MHz?
Yes
Step 2-2: Reset
IC501 (Pin 12)
Is the voltage
"H" (3.3 V)?
Yes
HDMI (HDMI input)
diagnosis : To Step 3-1
Video converter (Analog input)
diagnosis : To Step 4-1
VSX-LX51
7
8
5 V
B2
No
Check the soldering of IC1071 and
the peripheries of IC1071.
If soldering has not been done
correctly, replace IC1071.
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.
8
A
B
C
D
E
F
51