Question about JVC AV-27230 27" TV

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Jvc av-32wf36--have sound no picture

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My JVC TV had sound and white horizontal light across the screen... But no picture or Vertical light... How can I fix it?

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A bright Horizontal Line indicates failure of teh Vertical deflection Circuits.
Get a competent Technician to have a look.

Posted on Dec 01, 2008

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1 Answer

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

Video just reduced to a tiny horizontal line across the screen. sound is fine, what could be the problem? jvc tv model av-32720


You have a bad vertical IC at its worse or one that may need resoldered. Be sure to check the grounds on this IC and check for rings around the pins. And you can bet in the immediate area you have bad capacitors that created a hot vertical IC. This will cause the Vertical IC to break down!

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Our JVC AV-32F703 has a black screen when we turn it on. The sound works fine. What could it be? The tv was purchased in Jan 03


try up the screen bottom in the fly back. if yoy see a white horizontal line the tv have a cold solder in vertical ic or is bad.

Apr 14, 2010 | JVC AV-32F703 32" TV

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JVC AV-27730: horizontal bright line across screen in the


it could be an electrolytic capacitor or the vertical output I.C. in the vertical circuitry,if you remove the rear cover tap on the board in different places and see if the picture fills out or atleast jitters like it might fill out,then it could be just a cold solder joint,then remove the main board and resolder all joints and this should repair the condition you have

Nov 18, 2009 | JVC AV-27730 27" TV

1 Answer

Bright horizontal line across black tv screen


Hi There,
If your picture has collapsed to just a horizontal line across the center of the screen, this indicates that your Vertical Output circuit is bad and needs to be serviced by a qualified technician. I hope this helps and thank you for using FixYa!

Mar 29, 2009 | JVC Televison & Video

3 Answers

TV: bright line across black screen for several hours.


vertical output ic needs to be resoldered. careful leaving that bright line displayed on the screen as this will cause a permanent phosphor burn into the tube. this can not be corrected once burned unless you replace the tube. mch

Mar 08, 2009 | JVC Televison & Video

2 Answers

JVC AV-K21TR


The faint white lines at the top of the screen is the warning that the pump-up capacitor in the vertical output circuit is going bad and the output itself is about to short out. When the TV stops working, the vertical output IC has finally shorted out. Replacing the vertical output IC, the pump-up capacitor and possibly a small value resistor next to the flyback (B+ for the v-out) should bring the set back to life.

Jan 26, 2008 | JVC AV-27230 27" TV

1 Answer

Jvc av-29ts2ek


It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
Good Luck
Ed
NC Electronic Mills, Wyo USA

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2 Answers

No picture on screen


if its wired to cable/satelite test scart leads unplugg /plug back in and if you have xbox unplug that while watching tv then plug in when u want to use it hope this helps it worked on mine

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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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