No picture no sound white arrow flashes 3 times stops then 3 times
No picture or sound on my 60inch sharp aquos tv model lc 60le741e white arrow flashes white 3 times
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D Robbins try a reset first while holding input and channel down, let us know if that changes anything. After that you will have to remove the back of your TV and checke the boards. Post some good pictures of those with your question so we can see what you see. iFixitでの質問に画像を追加する方法 You need to measure the voltages on the connector from teh power board to the main board. Let us know what voltages you get. There apparently have been issues (bad MOSFET) with the power board for this series.
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