Hdmi - LG BD370 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

8. HDMI

No A/V
JK902
Soldering OK?
YES
JK902 Pin18
VCC +5V OK?
YES
JK902 Pin19
+2.0V < Voltage < +5.3V
OK?
YES
JK902 Pin15, 16
(SCL, SDA)
OK?
YES
HDMI out OK
LGE Internal Use Only
NO
Re-soldering
NO
L902
soldering OK?
IC204 Pin 4 Check
NO
TV hot plug detect signal
check (from IC301)
NO
Check HDMI Voltage
Level Shifter
3-38
NO
YES
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Re-soldering
Only for training and service purposes