2-50
ELECTRICAL TROUBLESHOOTING GUIDE
4. NO HDMI OUTPUT
No HDMI audio / video output
JK252 H_5VA OK?
Check H_5VA IC152.
YES
YES
YES
YES
NO
IC101
HDMI_SCL/SDA, EDID_SW, CEC_RX/TX
HDMI_RST OK?
JK252 pin19 HPD
about 3.3 V OK?
Is there signal on
pin1, 3, 4, 6, 7, 9, 10, 12?
Check IC101.
Check hot plug detect signal from TV.
Check IC501 MT8563 VCC
or replace IC501 MT8563.
HDMI output OK.
YES
NO
NO
NO