LG BD370 - Hdmi

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Only for training and service purposes
LGE Internal Use Only
8. HDMI
ELECTRICAL TROUBLESHOOTING GUIDE
No A/V
HDMI out OK
Re-soldering
JK902
Soldering OK?
NO
JK902 Pin18
VCC +5V OK?
L902
soldering OK?
NO
NO
Re-soldering
YES
YES
IC204 Pin 4 Check
YES
JK902 Pin15, 16
(SCL, SDA)
OK?
NO
Check HDMI Voltage
Level Shifter
YES
JK902 Pin19
+2.0V < Voltage < +5.3V
OK?
NO
TV hot plug detect signal
check (from IC301)
YES