Question about JVC LT-26C31 26 in. LCD Television

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JVC LCD tv - no picture, sometimes!

Hi, there is a problem with our JVC LCD tv, the sound is fine, but there is often (but not always) no picture when it is swiched on. It is about 6 years old, and the backlights are fine, and nothing inside looks blown or distorted. It appears to be that the y-spread (vertical) is not functioning properly as often a thin bright line will appear across the very top of the screen when there is no picture. Sometimes there will be no picture for 5mins (for example) and then the picture will reappear, and sometimes it will appear instantly, or not at all regardless of how long it's left on for. The problem seems intermittent at the moment, which is the most puzzling thing! If you have any idea what might be on its way out any help would be most appreciated! Cheers, Keri

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1153 Answers

SOURCE: Vertical portion pixelats then forms

Note
In some cases, there are minor defects in some parts of the screen. Points that do not light, points with
brightness different from that of the periphery, or points with color different from that of the periphery.
Some pixels will always be on or always off. Please note that this is not a malfunction. So what this says is that it's not the Plasma Cell problem, its more like a bad board inside. You will need more info like schematic and find out which area the bad part is in.

Posted on Jan 04, 2008

  • 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

  • 3422 Answers

SOURCE: Vertical Black Line

HI,
First thing to do is the reset and the whacking test. I give this a 50/50 chance of clearing it up.

ONE: Disconnect the power cord for 4 hours. Then when you power it back up the internal soft codes will automatically reset to factory defaults.

TWO: The whacking test is to just bang or smack the set with your hand on the back, side, top, etc., to see if there are loose connections or cold solder joints inside that are acting up. If so, the banging should knock them back to normal and the set should restore. You might have to use some creative banging and some have had to put a book or magazine under one corner to torque the chassis enough to get it to work reliably.

If these two procedures do nothing then:

The manual always knows the best.Go through the manual carefully and u will find the solution to ur problem..

Goodluck and Kind Regards
Please Don't forget to rate me as fixya..

Posted on Feb 02, 2008

jhoi
  • 11 Answers

SOURCE: jvc lcd cracked screen

LCD is one of the expensive part of a Monitor. maybe you can buy a new one because if you choose to repair it, it cost the same when you buy a new one.

Posted on Feb 27, 2008

agibbsholden
  • 30 Answers

SOURCE: A horizontal thin black line has appeared across screen.

hi all .ive had the same problem,a thick black line down screen.sometimes it flickers from top to bottom and other permantly in view.but i have solved it.forget your ic boards and taking apart tv.have you got either a ps3 or wii connected to tv.if so unplug power lead from socket and relocate in seperate socket.make sure the lead is completely free of any other leads and you might just find this works.i think the power lead creates some sort of frequency that the tv picks up .good luck hope it works

Posted on Oct 30, 2010

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