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RCA big screen

The blue bulb fades in and out and u can hear a clicking noise then sometimes the tv will shut off or change channels.

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More then likely your blue tube is bad.repair cost 350.00 and up.ThankYou for using FixYa and Have a Nice Day.

Posted on Feb 05, 2008

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The blue led dies because the power source dies: it detects a big short on one of its outputs and shuts down to protect itself automatically. Since apparently it's a very big short and you just had to replace the bulb then the faulty part is the ballast board (the one that powers the bulb): when the bulb failed it has generated a power surge that fried it.
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1 Answer

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

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1) Replace IHVT (aka flyback transformer ) Part # 250694
OR
2) Replace HV BLock part # 250671
OR
3) Check for arcing CRT ( red,green or blue )

Please rate this solution.......

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