LG 32LH500D - Power error_No Power - Method When Power is ON

Standard Repair Process Detail Technical Manual
Check “3.3V(R708)” pin is high (about 3.3V)
LED TV
Error
symptom
Power error_No Power
Established
date
2016. 03.07
Content
Check method when power is ON
Revised
date
A7
CN701-1/2
+12V
FB703 +3.3V_Normal
C708 +5V_SW
R708 +3.3 PS_ON