Read LG 55GA7900-UA (CHASSIS:LA37G) Service Manual online
Standard Repair Process Detail Technical Manual
Check power input voltage and ST-BY 3.5V
B. Power error _No power
A18
Established
date
Revised
date
Error
symptom
Content
LCD TV
A18
2011. 12 .14
<GA64/7900>
Check the DC 24V, 12V, 3.5V.
GA6400 : 18P
GA7900 : 24P
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