Read LG 55GA7900-UA (CHASSIS:LA37G) Service Manual online
Standard Repair Process Detail Technical Manual
Power Board voltage measuring method
A. Video error_No video/ Audio
A4
Established
date
Revised
date
Error
symptom
Content
LCD TV
A4
Check the DC 24V, 12V, 3.5V.
2011. 12 .14
GA6400 : 18P
GA7900 : 24P
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