JVC AV-48WP74 48" Rear Projection HDTV-Ready Television Logo

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Posted on May 23, 2011

My 48 inch tv have a curve like green streaks line on top of the screen

5 Related Answers

Anonymous

  • 1153 Answers
  • Posted on Aug 13, 2007

SOURCE: no picture on tv screen

When you say no picture, is there any sound or noise coming from rear of set when you try to turn on. If so then you have no high voltage and maybe a cap in the HV line that is bad. If no sound at all, then maybe a fuse or open resistor in powersupply.

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Anonymous

  • Posted on Sep 18, 2007

SOURCE: Green curved lines going across my t.v.

change the green lamp

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Sonny Berry

  • 8617 Answers
  • Posted on Jan 24, 2008

SOURCE: Green bent line on 48 inch jvc

Check for a burnt resistor on the convergence circuit board. This is usually what happens when the green gets distorted as the green is not adjustable only through the service menu so its either a burnt resistor or a leaky capacitor. Resistor is far more likely. Let me know if you need any further information.

Anonymous

  • 4 Answers
  • Posted on Feb 16, 2008

SOURCE: JVC 65 inch projection tv

thats how my stared than got worse i call for service and got fix after 4 moths had the same problem and i called the same guy again at firs he told me that the convergence was bad and replaced them i think there are three pieces but than the second time he took the box inside the tv he checked all the circuits and the board and he found out the something else was getting real hot and was causing that the convergence to bad now he fixed hope i got no more problems

Anonymous

  • 3 Answers
  • Posted on Aug 24, 2009

SOURCE: my 48 inch jvc tv has a green color to it what can

Okay so the green color that you see on the screen is because the coolant inside of the green picture tube is gone bad (it suppose to be cristal clear but now it is brownish and that makes the green color run all over the screen.) That just happens over time and I'm guessing the picture tubes have never been serviced. Now you got two choices
1- The easiest and fastest way would be to take it to a local repair shop and have them service the coolants of your picture tubes. I'm guessing it would run you about $165 or so to get them done (the three of them red,green and blue)
2-On the other hand you can do it yourself. It is not hard at all but it does require a lot of attention.

After the picture tubes have been serviced you'll notice the big difference.
You'll actually have a much brighter and sharper picture just like when it was new.

Let me know if you decide you want to do it yourself so i can post the instructions for you.

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TV turns on with a green screen with curved horizontal lines.

It seems you may have a serious problem with your video board. That's why you are getting those symptoms. It's better if you replace it asap!
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Red and blue streaks across the screen top and bottom

The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.
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Purple and Green Streaks

If lcd set the issue may be with the T con board which is responsible for video and any aberrations that you see on screen.
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Line on screen

if you found out how to fix or what is wrong with tv please let me no [email protected]
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Samsung rear projection 42" green curves causing distortion just started

http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
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Bluring at the top section of the TV

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/
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3 curved lines top & bottom/blurred picture

This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..
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Blue haze around image, yellow streak

the tv color circuit is off frequency change the color ic take a look on the crystal that gives the 4.8.mhz burst could be that it needs to be replace dont rule out the video IF change the two ICs you mention.good luck.from the look of your tv screen that is my conclusion.good luck.email me at [email protected]
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Green dot in middile of my screen

The green dot in the center sounds like a burn mark on one or more of the picture tubes inside the set, and the curved lines are telling me that you have a problem in the convergence circuits. The blue haze around everything white tells me you either have a lot of dust build up on the lens over the CRTs, or your picture tube(s) are very weak. If this set is over about 12 years old, I would replace it. I doubt if you will be able to get the green dot out of the picture without changing the tubes which would be VERY expensive.
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