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Blurry tv screen

I have a 27 inch GE tv model 27GT722 made in 2001. Recently while watching TV the screen has become somewhat blurry and difficult to read the program guide. Is there an adjustment that can be made and if so, how?

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If you are comfortable on doing adjustment with working TV then take off back cover of TV and check flyback transformer, there you would see 2 control knobs, upper knob if to adjust focus. rotate it CW or CCW to obtain maximum focus on TV screen.
Put back cover and enjoy.

Posted on Feb 10, 2009

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2 Answers

Blurry screen


I have researched your set. There isn't a date of production that is available so your guesstimate of 11 years old is about where I would place it.

For your specific problem (which is common among old style projection TVs) it's usually the three picture tube or "guns" are showing their age. If it has slowly become more blurry then that is the case. If it has suddenly become blurry then there may be a fixable defect. Judging by it's age I would suspect that your are up for replacing all three tubes in your set. My recommendation is DON'T DO IT. You will be much better off purchasing a newer and preferably flat screen TV. All projection TVs with picture tubes in them typically last between 10,000 and 20,000 hours of operation. At 11 years your set is in that range if you watch an average amount of TV. Enjoy looking for a new set and pick out something that tickles your fancy. Sets have improved vastly with the thin screen technology.

Zashiban

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My AIWA TV 19-inch color is 9 years old. It is


HI,

WHEN WORDS AND PICTURES ARE BLUR,DIFFICULT TO SEE,,

ITS PROBLEM WITH LOT (LIGHT OMITTING TRANSISTOR) WHICH INSIDE TV ...

NOT OTHER PROBLEM ..JUST GO TO ECONOMIC TV TECHNICIAN.

TNKS

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The problem could be with your crt base socket, if you know how to solder well and can identify the components and have a knack in dealing with the internals you can fix this yourself. Base socket is the stuff that you connect to the narrow end of the picture tube, you will find a pcb and a plastic connector almost round in shape on that board. Desolder the socket (the plastic connector) and get a new one, exactly the same type and solder this back.

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http://www.electronix.com/catalog/product_info.php/cPath/6_308/products_id/9541

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Hello, one of the possible causes can be the malfunction of the HV splitter transformer. Best regards, Arpi

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Sounds like theres a leaky capacitor in the screen drive circuit. I have seen this problem also be a gassy crt but was able to clean off the grids of the CRT with a crt/rejuvinator. It happens because of low emmissions in the tube and when white is on thats a mix of all the colors, so the tube works harder. I bet when you whatch a movie and the scene changes suddenly to a white or brite scene the pic looks a little washed out. If this is not the case then I aggree with the Pravin and try it on another TV just to be sure .. This is not a repair for a consumer to do, though however it is only a three year old set you stated, so there should be life left in the tube, so im kinda thinking a capacitor is bad. Seek out a yechnician to check this out for you as a TV is not a place to see it you can fix it or to exoeeriment with. Good Luck

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