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Messed up screen..please help

My screen is black now but 20 mins ago the screen had a blue and green line crossing the screen horizontally. the blue and green line was about 9 inches tall. once when i turned it on the screen was black with a thin blue line crossing the screen. this line was about 3mm tall and it spanned the whole width of the screen just like the last blue line. the speakers only work about 30% of the time and when the speakers have worked the screen is 100% black. the picture that was apparent with the blue line was not a signal in was just undistiguishable clolors. note: there is no antenna...could that be the problem? also the coaxial jack on the back has come loose from the shell of the tv but is still attatched inside. there was also alot of dust inside the contraption. does anyone think that they could diagnose this problem...if not my friend's step-father owns a tv repair shop. as a last resort i will take the television there for a diagnostic and repairs.

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  • Dionysos Jun 26, 2008

    Hi!,
    I have a television Sharp model CU27FS51. The problem is that I have no image on the sreen but in the same time I have the sound on each chanel that I choose. What's going on? I have a courant on the tube cause I have littles lights on it.

    Thank you for your help.

    Denis Tetu
    denistetu@videotron.ca


  • Anonymous Jul 04, 2008

    line down center of screen. otherwise black screen. after sitting for awhile off, picturee returns for approx. 10 minutes

  • Anonymous Jul 19, 2008

    Hi!
    I have a DVD player Electrohome DVD816E and the power supply is out of order. The fuse is burned and the isolation transfo is burned to. I don't think that I have other problem. How I can fix that?

    Thank you.


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joust
  • 7 Answers

SOURCE: thin horizontal line

Thats almost definately bad solder connection. look at solder joints for cracks around teh lead. better yet, suck outold solder and put in new on any connections that have anything larger than a standard resistor lead. yoke plugs, tuner, etc

Posted on Jan 24, 2007

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nfandres
  • 168 Answers

SOURCE: Tv not working

this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!

Posted on Mar 10, 2007

  • 1694 Answers

SOURCE: Toshiba 36A40 36" TV / Chassis No: TAC 0011

Bad capacitor in vertical circuit + possible vertical output IC
damage.If you can identify part locations and solder.....?

Posted on Oct 24, 2007

  • 1030 Answers

SOURCE: Thin black horizontal lines on JVC PD-42WV74 EDTV

horizontal line is an idication of a bad board known as a x driver board. Their may be a slight possiblitliy it can be a small ribbion cable that runs from the driver board to the plasma panel. Another possiblility it can be a bad panel... but from the symptoms you describe i would first have to look at that driver board. and the sympton that getting worse makes me lean toward a bad ribbion cable.. if that could be reseated....well that the first thing as a technician i would try. Carefull Television generate dangerous voltages.

Posted on Jan 04, 2008

Cybertech
  • 149 Answers

SOURCE: TV has a thin horizontal line across the screen

intermintence in vertical IC deflection its a job for experienced tech need to look for that circuit and do fine job resolding that IC

Posted on Apr 01, 2008

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