Question about Thomson 14MG135 14" TV

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Some part of TV has been fused causing no picture on screen , only bright green horizontal lines , not even video channel could be set ,cannot see menu on screen please help by specifying possible hardware electronic/technical problem rohit

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  • Rohit Chawla Apr 12, 2006

    my tv is 8 yrs old can u specify the life of green transister what are the chances of transister fusing ?

  • Anonymous Feb 14, 2008

    Has the same problem. Picture is in full green color & sound quality very bad.

  • Anonymous Mar 30, 2014

    The picture has turned green. The faces all have a green tinge. The screen is also very bright. Even turning down the brightness does not help?



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If the screen is real bright green with thin small white lines in it its probably a shorted picture tube. Or a shorted Green driver Transistor. Good Luck

Posted on Apr 12, 2006

  • Larry  Dillon
    Larry Dillon Apr 12, 2006

    there is no real life expectancy but my moneys on the picture tube being bad Sorry man



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You have stated that your TV has a lot of horizontal lines before it went off picture. We say that lines as retrace lines. So many of them will there on the entire screen, at about one inch or so apart, horizontaly scattered along with picuture. At that time, you may be unable to down the brightness control also. Even though you have reduced the brightness control to zero position, there will be some brightness level on the screen. You should have to repair that fault at the begining. There is a voltage going to the picture tube base, known as screen voltage. That voltage determine the emission of the picture tube, and we call it a bias voltage. When it goes higher than normal, this trouble ie retrace lines will occur. In long run it may spoil the picture tube itself. I don't know what the case of yours.
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1 Answer

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Possible Answer Posted by PEE_WEE 4/28/2005
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My resistors are not numbered the same on my crt board APT187. GSM 02/20/2008

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1 Answer

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