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Jvc tv repair model LT - 47DG1 starts up ok then after 10mins has lines across the screen and image distorted. can you suggest why?

Was hooked up to blue ray DVD. Even on its own still does the same thing. Is it worth repairing

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 275 Answers

SOURCE: JVC 27"

Repaiur or replacement? It's Your call! If you know Solid State repairs, then worth a try. Most likely a bad Electrolytic capacitor in the Vertical Oscillator / Output section. Do not waste time identifying faulty one, but change all at one go. Even if one is faulty, the others must have started drying up, and will cause problems in the future.Remember "An Ounce of prevention is better than......"

Posted on Oct 02, 2006

  • 6 Answers

SOURCE: plasmaa tv not going

Try using a ground isolator. You can buy them at radio shack, or your local hardware store for under 10 bucks. this item has three holes on one side and two posts on the other. it takes the ground out of the tv. We call those a scrolling line or a hum. Can be caused by incorrect wiring in the tv or the wires that run to the tv, could be running with electrical lines or an hvac unit. try this solution if it doesnt work then go to the altrenative which is sending the unit out for repair.

Posted on Dec 12, 2007

  • 6 Answers

SOURCE: THICK BLUE LINE VERTICAL LINE ON SCREEN OF MY PLASMA PICTURE

IF THE LINE IS ABOUT 1INCH WIDE THE CHANCES ARE IT WILLBE YOUR PLASMA DISPLY THAT HAS GONE . WOULD BR CHEAPER TO BUY A NEW UNIT . HOWEVER TRY RINGING HITACHI EXPLAIN THE FAULT COMPLAIN THAT IT SHOULD OF LASTED LONGER THAN THE WARANTY AND SEE WHAT THEY WILL DO ABOUT IT

Posted on Feb 15, 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

SOURCE: olevia tv repair

CHANGE TO A ROOMSHOW

Posted on Mar 09, 2008

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JVC LT-42E910 LED flat screen TV, backlight comes on, menu box is displayed but after about 5 seconds backlight goes out. Picture and sound still working but no backlight. How can I troubleshoot?


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You need a repair guy for this one.

Feb 28, 2008 | Televison & Video

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White lines across the top of the screen


It sounds as though you can see Transmission lines which are sent out with any broadcast at the top of an image, The TV should normally blank these out, i suggest checking your horizontal and vertical settings

May 31, 2010 | JVC AV-27230 27" TV

1 Answer

I have Diagonal lines moving across the screen.


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer2_bing.gif Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.png http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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1 Answer

Vertical jitters on picture - JVC AV48P776


What you are experiancing is loss of High voltage. The line is called a retrace line. It is usally caused by failure of the flyback circuit or aging of the TV tube. This is the single most common failure with CRT based display systems. The high voltage can be tweaked up, to accomidate for the age of the tube. Its a short term solution. Because of the high voltage nature of this circuit, suggest a professional repair.

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1 Answer

No video input -- all ports -- for JVC LT-37X688


JVC may allow warranty exception or some accomodation for 15 days out. You have 2 seperate issues

1. White lines spreading is probably a video process problem. I think this TV has 3 Boards inside. Middle one is most likely suspect followed by the one on the Right

2. HDMI input not working is because they were turned OFF. JVC TV's have a sensor that will shut off the HDMI if the TV's back cover is removed. This must be reset in the Service Menu.

Nov 16, 2008 | JVC LT-37X688 37 in. LCD HDTV

1 Answer

Philips 46-inch Rear Projection with bowed image?? slight distortion



You have a convergence problem. Here are some of the most common symptoms. 

Screen looks 3D
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Screen is bowed in but stationary.

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1 Answer

Jvc lt-40fh97 40" LCD Hdtv


Ah! That is interesting! So if you are watching a certain channel full screen, the image is clear? It is only when you activate the Dish Guide on part of the screen that the problem occurs?

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1 Answer

Orion TV model TV_798 sl (thin line no picture)


problem is with the vertical output circuit. take it to a repair shop and have them fix it.

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4 Answers

Jvc av-27730 27"


One thing you should not do with electronic devices which have a start up proceedure is to turn the power off, and then on again without a wait of about five minutes. Some equipment manuals warn you about this, and specify a longer period. The start-up has to have time to reset. It will be more likely to reset if you do not leave it on standby, and even unplug it. In your TVs case you need to describe the distorted picture as it may give a clue to a fault, or incorrect start-up. The horizontal line indicates the frame timebase had stopped working. No picture could be a fuse blown inside the set, or a timed cutout which may reset after a time. Try after several hours to see if it comes on. If it is just the frame timebase (vertical) it is worth repairing.

Oct 22, 2006 | JVC AV-27230 27" TV

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