Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
3. If you can`t see the UHD live TV, please connect signal at left side of jack. (Korea model only)
Standard Repair Process Detail Technical Manual
TUNER checking part
A. Video error_Video error, video lag/stop
<ALL MODELS>
A5
Established
date
Revised
date
Error
symptom
Content
LCD TV
A5
2015.5.25
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Summary of Contents for 55UF6790
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