Question about JVC AV-27F702 27" TV

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Black hairline inside the tv.

Their is a thin black hairlone inside the screen and it moves is this a big problem???

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Your  unit need for resoldering, try it

Posted on Oct 13, 2007


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1 Answer

Very thin black vertical line moving across tv screen left to right on tv

The screen voltage to the picture tube is more than normal. Adjust it by the help of screen pot-meter integrated with Line Output Transformer. Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy.

Aug 05, 2012 | Panasonic CT-20SL14 20" TV

1 Answer

I own a 5 year old 40" sony bravia lcd tv, When

This sounds like what I managed to do to my screen, even though I knew better. Is there any chance you layed the screen face down at some time?

Even though you can still watch it OK, you probably have hairline fractures in the screen face (NOT the screen itself- be thankful for that- the cracks are in the screen coating). LCD screens are a very thin glass laminate with a thin protective glass-like coating. When they are laid flat (like I did to connect cables) if the screen bears any weight, microcracks develop on the front of the screen.

I am sorry to say that the effect is permanent.

Feb 24, 2011 | Sony BRAVIA KDL-V40XBR1 40 in. LCD HDTV

1 Answer

Marks on the inside of the screen

If that is internal, that needs repair or replacement and is usually eligible for warranty repair if your laptop is in warranty. I mean physical damage like cracked screen is I think not considered in warranties. Hope this helps. Thank you.

Aug 11, 2008 | Toshiba Satellite A105 Notebook

2 Answers

Many thin black horizontal lines on my Hitachi Ultravision 50" TV

Good Day, LDS also;
You may have a poor seated cable connector. Unplug TV from A/C, remove back look for a large black connector. It connects between the Main Digital Module and the Drive PWB. Re-insert both ends several times to make better contact, use contact cleaner if have but not always needed. Good Luck, big IRISH.

Jul 21, 2008 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

51 big screen apex tv, convergence or verticle IC?

If the lines are thin and close together running horizontally, it may be the vertical driver, but that usually takes out the resistor and sometimes the diode in the B+ for the vert. Also you must replace the caps that caused the problem in the first place.

Feb 05, 2008 | Apex Digital GB5108 51" Rear Projection...

1 Answer

The tv has rainbow colors all the way down the screen. it is a magavox big screen.

cheak main bord for hairline cracks and add solder 1st look for them before we start changing parts ic chips ect

Feb 03, 2008 | Televison & Video

2 Answers


If it is a cable...There are many(from 7-11)driver ribbon cable with horizontal driver chips mounted on them!!!! So if problem didn´t go away after fixing all cables...your plasma has died.

Oct 08, 2007 | Panasonic TH-50PX60U 50 in. Plasma HDTV

1 Answer

Black screen with green smiley face

If your tv has a picture tube,your problem is in it. If you have only one line now,the vertical circuit is not working. You could have jarred something loose around the picture tube.Maybe a yoke lead ???

Jan 13, 2007 | Mitsubishi VS-60607 TV

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