Bad Hdmi Video / Audio Output - LG LAB550H Service Manual

5. BAD HDMI VIDEO / AUDIO OUTPUT

When unit is connected to HDMI TV using HDMI cable, picture shows bad color, no output or mixed
color on the screen. But component output is OK.
5-1. CN803 (HDMI JACK)
5-1-1. Solution
Replace CN803 (HDMI Jack).
5-1-2. How to troubleshoot (Countermeasure)
1) Check CN803 pin soldering.
2) If there is short soldering on pin CN803, re-soldering pin CN803.
3) If problem still occurs, check HDMI data.
- If all data OK, replace CN803.
- If data NG, check set on BD Mode :
Replace IC501.
5-1-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
HDMI IN HDMI IN
< MAIN board top view >
2-37
HDMI OUT HDMI OUT