Question about Sony KDS-R50XBR1 50" HDTV

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I have a Sony 50" LCD projection TV. It's slightly older than 4 yrs. now. My problem is the Power/Standby light blinks green when I try to turn the set on, which is typical, but the picture only comes on briefly then off, with the Power/Standby light blinking red, repeating a 4 light blinking pattern. I bought a new XL-5100 lamp from Sony, but it did not correct the problem. Is there anything else I can try? Thanks, Jim Coley james.coley@sbcglobal.net

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A four flash error sometimes means one of the fans is bad or clogged so much it won't rotate. You probably will have to remove the back and visually see if the fans that are visible are rotating. There is also the main lamp fan that is located in the housing to the left as you take the back off. This fan is not easy to get to at all as it requires a bit of a tear down to get to.

Posted on Sep 16, 2010

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The main fan in my R50XBR1 50" TV runs for about one minute -- after I shake it a few times -- and then quits. I have already replaced the lamp and the T1 board and even ordered a T3 board, I just ordered a replacement fan hoping that will fix the problem. If it does, I will return the lamp and the T3 board.

Posted on Apr 01, 2011

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Possible that the main convergence board is having issues.
The power supply is working OK and tthe standby indicates that the microprocessor is also working.
So you migh need to take a first hand view to look into the set to confrim if there is any visible signs of damage, a leaked capacitor, a open power resistor, shorted semiconductor- power-, heating in IC's. these can be relative to the fault as a first hand infomation.

Posted on Sep 16, 2010

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