No Hdmi Output - LG BPM55 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

3. NO HDMI OUTPUT

No HMDI audio / video output
JK802 pin18
VCC 5 V OK?
JK802 pin19 HPD
about 3.3 V OK?
Is there signal on
pin1,3,4,6,7,9,10,12?
HDMI output OK.
YES
YES
YES
YES
3-45
NO
Check VCC 5 V from IC150.
NO
Check hot plug detect
NO
Check IC501 MPEG IC Vcc
or replace IC501 MPEG IC.
signal from TV.