Read LG 55LE4500 (CHASSIS:LT01D) Service Manual online
2. Digital TV Video
Check RF Cable & Signal
Check Tuner 3.3V Power
L5003
Replace L5003
Check Tuner 1.2V Power
IC5001 2 pin : 1.2V
Check IF_P/N Signal
TU5001 17/18 Pin
Replace IC5001.
Check Tuner 5V Power
L5002
Check IC401
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
ok
ok
ok
ok
No
No
No
No
No
Replace IC401
No
Bad Tuner. Replace Tuner.
Replace L5002
ok
Click on the first or last page to see other 55LE4500 (CHASSIS:LT01D) service manuals if exist.