Pioneer VSX-918V-S Service Manual page 42

1
QQ
HDMI Troubleshooting (VSX-818V)
3 7 63 1515 0
• This shows failure analysis of the HDMI Assy.
A
Preparation
Step 1-1: Screws on the rear panel
JA101
COAXIAL jack
Do
screws of COAXIAL
jack securely
tighten?
Yes
B
JA601, JA602, JA701
Do screws
securely tighten?
*Should tighten one screw at least
for diagnosis.
Yes
Step 1-2: FFC
CN1001, CN1002
C
Is FFC
No
cable inserted
securely?
Yes
TE
L 13942296513
Step 1-3: Connect the HDMI equipment
Source equipment:
Connect a DVD player to HDMI 1 or HDMI 2.
D Sink equipment:
Connect a TV to HDMI OUT.
Step 1-4: POWER ON
Turn on the power of the Receiver and equipments
which was connected with HDMI.
Step 1-5: Function switch (HDMI 1 or HDMI 2)
Switch the function that HDMI was assigned.
E
Factory shipments setting:
HDMI 1: DVD
HDMI 2: TV
To Step 2
www
F
42
1
http://www.xiaoyu163.com
2
No
Tighten screws securely.
HDMI connector
No
Tighten screws securely.
Insert it securely.
x ao
y
. i
2
http://www.xiaoyu163.com
3
8
Diagnosis
Step 2-1: CE
CN1001 (Pin 1)
Is the voltage
"H" (5 V)?
Yes
Step 2-2: Power supply
CN1002 (Pins 1, 2)
Is the voltage
5 V?
Yes
CN1002 (Pin 5)
Is the voltage
7 V?
Yes
IC901 (Pin 1)
Q Q
3 6 7
Is the voltage
3.3 V?
Yes
IC911 (Pin 5)
Is the voltage
5 V?
Yes
* When connected the equipment to IN1;
JA101 (Pin 18)
Is the voltage
5 V?
Yes
* When connected the equipment to IN2;
JA102 (Pin 18)
Is the voltage
5 V?
u163
Yes
A
VSX-918V-K
3
4
2 9 9 4
CE
No
Diagnose the MAIN Assy.
V+5
No
Diagnose the MAIN Assy.
V+7
No
Diagnose the MAIN Assy.
V+3R3V
1 3 1 5 0 5 8 2 9
No
Check the IC901.
If IC901 is failure, replace IC901.
V+5HD
No
Check the IC911.
If IC911 is failure, replace IC911.
V+5R0
No
Check the JA101.
If JA101 is failure, replace JA101.
V+5R1
No
Check the JA102.
m
If JA102 is failure, replace JA102.
co
.
4
2 8
9 9
9 4 2 8 9 9