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Got sound,no image,switch on to white screen on my led lg tv?

had to change led mainboard as 47lw5700 board not available, replaced one by 47lw4500 (EAX64290501)instead of 47lw5700. However screen switch on to white , got sound, but no image. when I press input for hdmi, led tv screen still stays white??. Thanks in adv for reply friends

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@victor89 why did you change the board to begin with? what was the issue? the white screen is your backlight turning on but not receiving video signal.

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I gotta change mainboard as defective,problem part not available even in nearest future so has to fit a board bearing same code LW, however issue; now I have sound, screen lights on to white only, but no tnt image or dvd image. Any idea what wiring must I connect or bypass to gotta image, Thks in adv for reply

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Post an image of your board. MY reference shows that the EAX64290501 is for a 50LS4000-UA AUSDLUR How did you get the information that this board will work in your 47lw5700? Use this guide Adding images to an existing question to post images with your question.

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@victor89 sounds like you have an incompatible board. I do not believe that you can make this work with the current board. I'd suggest that you replace the board with a proper model EBT61410008. You can still get those board at places like this and many others.

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victor will be eternally grateful.
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