VSX-917V-K
113
5
6
7
8
5
6
7
8
C
D
F
A
B
E
B
A
Step 2-5: Hot Plug Detect
R386
Step 2-6: DDC
HPD (HDMI OUT)
B-1
B-2
Is the voltage
"H" (5 V)?
Check the JA301.
If JA301 is failure, replace JA301.
Check the D381 and R389.
If D381 or R389 is failure,
replace D381 or R389.
Check the Q151 and JA101.
If Q151 or JA101 is failure,
replace Q151 or JA101.
Yes
Yes
CN318 (Pin 9)
HPD_IN
A
Is the voltage
"H" (5 V)?
Yes
No
No
A
Diagnose between the BOARD
TO BOARD Assy and MAIN Assy.
Yes
CN318 (Pin 8)
Is the
voltage "L"
when selecting IN1?
And is the voltage "H"(5V)
when selecting
IN2?
No
Diagnose between the BOARD
TO BOARD Assy and MAIN Assy.
No
HPD0
A
Yes
CN318 (Pin 7)
Is the
voltage "H"(5V)
when selecting IN1?
And is the voltage "L"
when selecting
IN2?
HPD1
No
Yes
Q151 Collector
Is the
voltage "H"(5V)
when selecting IN1?
And is the voltage "L"
when selecting
IN2?
HPD (HDMI IN1)
B-3
Check the Q171 and JA102.
If Q171 or JA102 is failure,
replace Q171 or JA102.
No
Q152 Collector
Is the
voltage "L"
when selecting IN1?
And is the voltage "H"(5V)
when selecting
IN2?
HPD (HDMI IN2)
IC103 (Pin 3)
SDA (HDMI OUT)
SDA (HDMI IN1)
* When connected the source
equipment to IN1.
D-1
Does
a signal output in
constant period
(0 to 5 V)
?
Check the JA301 and IC103.
If JA301 or IC103 is failure,
replace JA301 or IC103.
No
No
No
No
Yes
IC103 (Pin 2)
SCL (HDMI OUT)
SCL (HDMI IN1)
D-2
Does
a clock output in
constant period
(0 to 5 V)
?
Check the JA301 and IC103.
If JA301 or IC103 is failure,
replace JA301 or IC103.
Yes
JA101 (Pin 16)
D-3
Is there a
same signal as D-1
when selecting
IN1?
Yes
Check the IC102 and JA101.
If IC102 or JA101 is failure,
replace IC102 or JA101.
Check the IC102 and JA101.
If IC102 or JA101 is failure,
replace IC102 or JA101.
JA101 (Pin 15)
D-4
Is there a
same signal as D-2
when selecting
IN1?
Yes
Step 2-4: Source 5 V
Q153 Emitter
Is the voltage
5 V?
No
+5 V (HDMI IN1)
Check the JA101.
If JA101 is failure, replace JA101.
C-1
Yes
Q154 Emitter
Is the voltage
5 V?
No
+5 V (HDMI IN2)
Check the JA102.
If JA102 is failure, replace JA102.
C-2
Yes
* When connected the source
equipment to IN1.
* When connected the source
equipment to IN2.
Содержание VSX-817-K
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