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5
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A
A
JA102 (Pin 19) JA301 (Pin 18) +5 V (HDMI OUT) HPD (HDMI IN2)
B-3
Is the voltage "L" when selecting IN1? And is the voltage "H"(5V) when selecting IN2? Yes No Check the Q171 and JA102. If Q171 or JA102 is failure, replace Q171 or JA102.
C-3
When selecting the input which connected to Source equipment, is the voltage 5V? Yes No Check the IC102, Q131 and Q132. If IC102 or Q131 or Q132 is failure, replace it.
Step 2-6: DDC
JA301 (Pin 16) Does a signal output in constant period (0 to 5 V) ? Yes JA301 (Pin 15) HPD_IN Does a clock output in constant period (0 to 5 V) ? Yes SDA (HDMI OUT)
B
Step 2-5: Hot Plug Detect
JA301 (Pin 19) HPD (HDMI OUT)
D-1 B-1
Is the voltage "H" (5 V)? Yes CN1001 (Pin 1) No Check the JA301. If JA301 is failure, replace JA301. No Check the JA301 and IC103. If JA301 or IC103 is failure, replace JA301 or IC103.
SCL (HDMI OUT)
D-2
No Check the JA301 and IC103. If JA301 or IC103 is failure, replace JA301 or IC103. * When connected the source equipment to IN1. SDA (HDMI IN1)
C
A
Is the voltage "H" (5 V)? Yes CN1001 (Pin 2) Is the voltage "L" when selecting IN1? And is the voltage "H"(5V) when selecting IN2? Yes CN1001 (Pin 3) Is the voltage "H"(5V) when selecting IN1? And is the voltage "L" when selecting IN2? Yes JA101 (Pin 19) Is the voltage "H"(5V) when selecting IN1? And is the voltage "L" when selecting IN2? Yes HPD (HDMI IN1) HPD1 HPD0 No Check the D381 and R389. If D381 or R389 is failure, replace D381 or R389.
JA301 (Pin 16)
A
D-3
Is there a same signal as D-1 ? Yes JA301 (Pin 15) SCL (HDMI IN1) No Check the IC102 and JA101. If IC102 or JA101 is failure, replace IC102 or JA101.
D
No Diagnose the MAIN CONTROL Assy.
D-4 A
No Diagnose the MAIN CONTROL Assy. Is there a same signal as D-2 ? Yes No Check the IC102 and JA101. If IC102 or JA101 is failure, replace IC102 or JA101.
* When connected the source equipment to IN2. SDA (HDMI IN2)
E
JA301 (Pin 16)
D-5 B-2
No Check the Q151 and JA101. If Q151 or JA101 is failure, replace Q151 or JA101. Is there a same signal as D-1 ? Yes JA301 (Pin 15) Is there a same signal as D-2 ? Yes SCL (HDMI IN2) No Check the IC102 and JA102. If IC102 or JA102 is failure, replace IC102 or JA102.
D-6
No Check the IC102 and JA102. If IC102 or JA102 is failure, replace IC102 or JA102.
F
B
VSX-1016V-K
5 6 7 8
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