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LG 47LN5750-uh. While watching TV the picture went blue and has no sound. Plugged in other devices into usb and other HDMI slots, still blue screen no sound. suggestions? Main board or T-con?

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Main Board. If changed main board, the problem still there, please try a new T-CON board.

Posted on Apr 26, 2017

Testimonial: "Changed main board. Still same problem, blue screen, backlights on but no picture. Any other ideas?"

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