Question about Sony KP-57WS500 57" Rear Projection Television

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No signal or sound but menu comes up

I have a Sony KP-57WS500 I have an issue with. When I turn the TV on it comes up with "No Signal" at the bottom of the screen. I've tried every video input on the back of the TV and nothing happens. The menu still comes up and looks and operates just fine. I checked and there are no codes stored in the TV. I've heard this could be caused by a bad "signal" board but I'm not sure what board this is referring to. Any help would be highly appreciated. Thanks!

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Check for open resistor and shorted regulator on signal pcb (the pcb with tuners on board). let me know if you need more assistance.

Posted on Sep 30, 2007

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Sony kp-57ws500 flashes blue, green, red then turns off
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Check out this link. I had the same problem.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

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