Question about Olevia LT42HVi 42 in. LCD Television

1 Answer

Have black lines in my tv and if you tap the screen it goes away. comes on when you turn it on. and it shows other pics in it only acrossed one side of the screen kinda like if you have a specker to close but its getting worse. when you tap it now it dont say off

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  • rebecca ritter Nov 19, 2012

    this is on a olevia lt42hvi 42 in lcd television

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1 Answer

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  • Olevia Master
  • 933 Answers

Sounds like either a faulty LCD panel tab or ribbon connection @ the panel or T-con.

Posted on Jun 04, 2013

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3 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

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Posted on Jan 02, 2017

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budmrtn

Bud Martin

  • 11361 Answers

SOURCE: tv will not stay on. When we turn the tv on the

Check the power supply module for bad DC filter caps with leaking/bulging tops first, then you need to check the voltages.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

Posted on Aug 04, 2010

SuperTech-11

Norman Skinner

  • 1591 Answers

SOURCE: i have and olevia 26 in tv..when i try powering

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors.
The parts are cheap, and skill required is minimal.
Cpacitors are less than a buck a piece typically if you order online from a place like www.digikey.com plus shipping, and they usually arrive next business day.

Posted on Jul 13, 2011

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1 Answer

Any idea on what is causing these issues with Vizio TV? Black lines horizontal, shadow vertical.


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Line faults to all LCD TVs will be similar, irrespective of its screen size and brand.

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We have a sony bravia 46" tv. Model number KDL-46W4150. It is 2 years old and has now developed black lines on the right side of the picture.It goes half way across the screen. It is like this when...


That sounds correct, I just have to work on SONY BRAVIA KDL-40BR4 with Horizontal lines problem on ther right side, you you tap around the frame, the lines will come and go, this is only 2 years old TV! Poor quality panel made by SONY/SAMSUNG company jointed venture.
Very sad indeed when you paid for BRAVIA series which are not cheap.
New screen will cost more than new TV.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

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Have horizontal lines across the screen and some


Yeah we have the same exact problem here. Defective TV....ours would correct itself after 30 mins, but now it's blurry all the time. I'm never dropping 2K on a SONY tv again.

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That is normally cold solder joints around the High Voltage transformer ( IFT) and also the video section. It should'nt be a major repair for a tech.

Apr 16, 2009 | Televison & Video

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Screen has lines going across one half and the other half was solid black, can not change input device or hear sound, does make fuzz sound when first turned on....


Sounds like the line output transformer is not soldered on the board properly or needs replacing. The quickest way to check for dry joints is if you tap the tv and the problem goes away then it needs soldering to the board properly. Otherwise sounds like a replacement line output transformer. Hope this helps.

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Your problem is most likely caused by a cold solder joint in the vertical circuit. Normally this is easy to find and correct. The problem will only get worse over time, but not likely for more damage to occur.

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