toshiba led tv has sound, backlights and blue screen but no picture
Tohiba led tv has sound, back lights and blue screen but no picture or menu. Replaced main board but problem remains. Voltages on power supply board seem ok.
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T-con board failure check the 24 v return coming from power supply to main logic board l(HDMI and cable hook up board )not the 24 v feeding the backlighting since it has sound there's a better chance its not the main logic
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