VSX-917V-K
112
1
2
3
4
1
2
3
4
C
D
F
A
B
E
• The parts marked like in the following chart are located
in "HDMI &DVC Assy Check Points".
Step 1-1: Connections
Step 1-2: Power supply
CN1001, CN1002
Are BtoB
connectors inserted
securely?
Insert it securely.
No
Yes
To Step 2-1: HDMI section
To Step 3-1: Video converter section
IC901 (Pin 1)
IC901 (Pin 3)
Is the voltage
5 V?
No
5 V
3.3 V
Diagnose the POWER PACK
Assy.
Yes
Is the voltage
3.3 V?
No
Check the IC901.
If IC901 is failure, replace IC901.
Yes
HDMI section
Common section
HDMI Troubleshooting
A
V+5
A
A
A
a
CN1003
Is FFC
cable inserted
securely?
Insert it securely.
No
Yes
B
Step 2-1: CE
CN318 (Pin 5)
Is the voltage
"H" (5 V)?
Step 2-2: Power supply
Step 2-3: SEL
No
CE
Diagnose between the BOARD
TO BOARD Assy and MAIN Assy.
Diagnose between the BOARD
TO BOARD Assy and MAIN Assy.
Yes
V+5
V+3R3
IC911 (Pin 1)
Is the voltage
7 V?
No
7 V
Diagnose the POWER PACK
Assy.
V+7
L101
Is the voltage
3.3 V?
No
3.3 V (IC101)
Check the L101 and Q101.
If L101 or Q101 is failure,
replace L101 or Q101.
Yes
Yes
Yes
IC911 (Pin 5)
Is the voltage
5 V?
No
5 V
Check the IC911.
If IC911 is failure, replace IC911.
V+5HD
Yes
L1001
Is the voltage
5 V?
No
5 V
Check the L1001.
If L1001 is failure, replace L1001.
V+5D
Yes
3.3V_EQ
CN318 (Pin 6)
Is the
voltage "H"(5V)
when selecting IN1?
And is the voltage "L"
when selecting
IN2?
No
SEL
Содержание VSX-817-K
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