Our TV was working fine and was on "Mute". All of a sudden the picture was gone and we only get a flashing power light. No video and no audio.
SOURCE: JVC 52 " Rear Projection TV Blinking Lights and no Picture
You need to replace the power supply board. The new ones have a bigger heat sink - obviously JVC knows about the problem because they made the new ones bigger. It cost $250 from JVC and I installed it myself - took about 3 hours to do. If you are not tech savvy call a repairman. Hope this helps.
SOURCE: Picture tube
Ur tv tube it still good.It ur deflection board have burn capacitors and transttors.The Fly back transformer is dead also,that where the noise came from.
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