LG LHD625 - Hdmi Output

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ELECTRICAL TROUBLESHOOTING GUIDE
4. NO HDMI OUTPUT
No HDMI audio / video output
JK501 VCC50 OK?
Check VCC50 IC102.
YES
YES
YES
YES
NO
IC108
HDMI_SCL/SDA, EDID_SW, CEC_RX/TX
HDMI_RST OK?
JK501 pin19 HPD
about 3.3 V OK?
Is there signal on
pin1, 3, 4, 6, 7, 9, 10, 12?
Check IC108.
Check hot plug detect signal from TV.
Check IC500 MT1389 VCC
or replace IC500 MT1389.
HDMI output OK.
YES
NO
NO
NO