LG 42LV375H - HDMI 1;2 Video Troubleshooting

- 17 -
LGE Internal Use OnlyCopyright © 2011 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
7. HDMI 1/ 2 Video Trouble Shooting guide
- HDMI 1
Is Video input normal?
JK800
Check the input source & HDMI
cable.
N
Check DDC communication line
JK800 Pin 16, 17
Check the EDID data.
N
Check 5V_HDMI, HPD line. Check the HDMI Cable.
N
Y
Replace IC100.
Y
Y
- HDMI 2
Is Video input normal?
JK802
Check the input source & HDMI
cable.
N
Check DDC communication line
JK802 Pin 16, 17
Check the EDID data.
N
Check Switch IC(IC800) output
signal.
Replace IC800.
N
Check 5V_HDMI, HPD line. Check the HDMI Cable.
N
Y
Y
Check the IIC line IC800 to
IC100.
Y
Replace IC100.
Y
Y