Pioneer VSX-2016AV-S Service Manual page 217

5
HDMI Troubleshooting
V+5
• The parts marked like
in "HDMI &DVC Assy Check Points".
Common section
Step 1-1: Connections
CN1001, CN1002
Are BtoB
No
connectors inserted
securely?
Yes
Step 1-2: Power supply
5 V
V+5
V+5
No
Check the DSP Assy or AUDIO IN
Is the voltage
Assy or DC/DC Assy.
5 V?
Yes
3.3 V
IC901 (Pin 3)
V+3R3
No Check the patterns in the path and
Is the voltage
IC901.
3.3 V?
If IC901 is failure, replace IC901.
Yes
V+3R3UC 3.3 V (HDMI UCOM)
V+3R3UC
No Check the patterns in the path and
Is the voltage
L501.
3.3 V?
If L501 is failure, replace L501.
Yes
Step 1-3: Reset
HDRST
CN1001 (Pin 2)
O
No
Check the parts and patterns in
Is the voltage
"H" (3.3 V)? the path.
Check the DSP Assy or AUDIO IN
Assy or MAIN CONTROL Assy.
Yes
X'TAL
IC501 (Pin 13) XOUT
U
Check the X501 and IC501.
Is there
No
a 15.7 MHz If X501 or IC501 is failure,
output?
replace X501 or IC501.
Yes
To Step 2-1: HDMI section
To Step 3-1: Video converter section
5
6
in the following chart are located
Insert it securely.
6
7
HDMI section
Step 2-1: Power supply
CN1001 (Pin 26)
Is the voltage
7 V?
Yes
IC911 (Pin 5)
Is the voltage
5 V?
Yes
V+5D
Is the voltage
5 V?
Yes
V+5E0
Is the voltage
4.4 V?
Yes
V+5E1
Is the voltage
4.4 V?
Yes
V+3RX
Is the voltage
3.3 V?
Yes
V+3RA
Is the voltage
3.3 V?
Yes
A
VSX-2016AV-S
7
8
7 V
V+7D
No
Check the DSP Assy or AUDIO IN
Assy or DC/DC Assy.
5 V (HDMI OUT)
V+5HD
No
Check the IC911.
If IC911 is failure, replace IC911.
5 V
V+5D
No
Check the R1002.
If R1002 is failure, replace R1002.
5 V (HDMI IN1)
V+5E0
No
Check the D151.
If D151 is failure, replace D151.
5 V (HDMI IN2)
V+5E1
No
Check the D171.
If D171 is failure, replace D171.
3.3 V (HDMI Rx)
V+3RX
No
Check the L103.
If L103 is failure, replace L103.
3.3 V (HDMI RA)
V+3RA
No
Check the L104.
If L104 is failure, replace L104.
8
A
B
C
D
E
F
217