Question about Mitsubishi WS-55613 55" Rear Projection HDTV

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Ws55807 I turn tv on it starts slow with great picture then after a while it fads out,then it may come back again .If i turn it off for a minute it may come back on great and some times not .But when it comes on it stayes on all day.This has been going on for a year.This started after a repair job ,they replaced a gun I sent it back at that time and it did not do it ,but it does it every day i need help thanks bill

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  • mrbill9608 May 31, 2009

    this problem gets worse in hi humidity I removed front cover on the right side on bottem there is a cercuit board with a aluminum tower 3 inches tall 1 inch square ,if the tv is goasty i take a hair dryer to this object for a few seconds a tv get ok some times it goes out i put the hair dryer on again tv gets ok is there a name for this part and is the problem thanks bill.

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Check CRT socket. resolder CRT circuit board and main board. its a loose contact.

Posted on May 31, 2009

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Hi
your convergence circuit has started giving trouble .... normal thing after a few years running for projection televisions ...... could be that the convergence IC's are getting too hot (two big IC's on a heast sink bearing an STK number on it) or that you have some loose soldering that needs to be resoldered on them.... worth the check
or have your power supply circuit board checked, if nothing seems wrong trouble leads to your horizontal deflection circuit board.
regards

Posted on May 28, 2009

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