Question about LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television

1 Answer

Blue streak of light running through the screen when watching tv.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 597 Answers

Hello,

When a blue streak of light is running through the screen of your television then the problem is most likely from your main board of your television or the t-com board.

You can open up the television with the appropriate screwdriver, then assess the capacitors to see which is faulty, and if none is swollen then the problem is not from the main board.

Then replacing the t-com board will do the job.

Take care

Posted on Oct 08, 2010

5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

SOURCE: Hitachi rear proj TV, light blue vertical streak center screen, moves slowly

Had this problem fixed. It is a common problem caused by dust brought in by the fan into the projection area of the set adjoining the projector lamp.....had to be replaced .... EXPENSIVE!

Posted on Nov 21, 2007

  • 1 Answer

SOURCE: Blue streak appears across the tv

i have the same thing with mine same brand and all the problems. i was stupied and opened it and under the the circle retrackable scope is another piece u can unscrew but dont. there is liqiud in there and it will spell all over the best thing is to take it in and spent 40.00 to look at it and 160.00 for a new tube yes a tube runs about 70.00 to 160.oo for one tube. good luck

Posted on Aug 07, 2008

waynejamescm
  • 67 Answers

SOURCE: blue streak at bottem of screen

Hello,

You have the classic "blue blobs," In most of Sony's rear projection LCD's, the Optical block is bad. Manufacturer's defect. The blue panel inside of the optical block starts de-laminating (due to heat from the lamp). This is a very common problem. I have changed about 70-80 optical blocks myself over the course of about 4 years.

There is no other fix but to replace the optical block. Unfortunately, it will get worse, and will probably develop "stars," or stuck pixels, as well. You can call Sony and try to get some assistance, but the extended warranty on these sets has recently expired.

Hope this helps you in some way...

Posted on Jan 05, 2009

mbelectronic
  • 147 Answers

SOURCE: blue streaks, looks like a spill from the top

light engine is defective.try cleaning lens first.

Posted on Jul 28, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a LG 42LB5D 42" 1080 LCD television that


hi, usually you can correct this issue with only a few system checks, dark streaks can be caused by damaged pixels on the screen, in which case you need to replace the TV.
  • Inspect where the dark streaks are on the television. If the streaks occur at the same place on the top and bottom of the screen, they are due to the formatting of a movie or television show you are watching. This is normal. Also, if the streaks appear on the left and right of the screen, they are due to the show being filmed in full-screen instead of wide-screen. This also is normal.

  • Change the input setting so you are viewing the contents of a different device. If the dark streaks are gone, you know they are due to the device connected to it. However, if the dark streaks remains no matter what input the TV is connected to, the problem lies with the television.

  • Inspect the cable connection. Oftentimes when connecting a computer to an LCD TV, you can have strange dark streaks across the screen. Use a DVI-to-HDMI cable connection when plugging in your computer, then press the "Menu" button on your TV remote, select "Picture" and chose "Square Pixel." See whether the image adjusts and the dark streak goes away.
  • Contact the manufacturer of your LCD television if the dark streak remains. This streak can be caused by a defect in the television; if the TV is still under warranty, you can have it replaced.
  • Feb 02, 2011 | LG 42LB5D 42 in. LCD Television

    1 Answer

    My tv picture seems ok, but there is blue, arching streaks running horizontally, and a blue outline around words on screen. What is wrong with my tv? Please help.


    u have a bad convergence ic , if u have same soldering skill u can do this repair , but i would recoment u to hire a tv tech normal repair is about $250

    Aug 26, 2010 | Sony KP-57WS500 57" Rear Projection...

    1 Answer

    Have a blue streak down middle of screen. all


    I have exact problem. Is anybody know how to fix it? tv is 4 years old

    Jul 15, 2010 | Hitachi UltraVision CineForm 55VG825 55"...

    1 Answer

    Blue dots and streaks


    Blue streaks might have been just your video connection and problem with signaling. But, blue dots is faulty light engine, aka "optical block". The engine in this could be a defective LCD array. Very expensive, a optical block is about $850. Hope it's still under warranty. You could get a rebuilt one, possibly. Need service adjustment too. Bad problem that Sony has with these kinds of sets.


    Oct 05, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

    1 Answer

    Blue streaks, looks like a spill from the top


    light engine is defective.try cleaning lens first.

    Jul 28, 2009 | Panasonic PT-47WX49 47" Rear Projection...

    1 Answer

    Red and blue streaks across the screen top and bottom


    The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.

    Jul 11, 2009 | Mitsubishi WS-65809 65" Rear Projection...

    2 Answers

    White Spots Streaks on DLP Screen


    If you bought the set new you might just want to contact the manufacturer - if they are decent, they might just try to help you out with your dilemma.

    Apr 02, 2017 | Mitsubishi WD-65833 65" HDTV

    1 Answer

    Picture has a blue shadow


    Hi,
    Seems convergence out IC is fried in TV so it gives blue shadow.

    Check out Convergence Out IC which you need to replace in TV, if you have enough experience of repair of big TV, necessary tools and know basic electronics.

    Dec 18, 2008 | Hitachi 51SWX20B 51" Rear Projection...

    1 Answer

    Blue wide streaks in my 42" Sony TV model KDFE42A10.


    I have the same TV and the same problem and it's also just over 2 years old (bought it June 2006) when the problem started. Every day, I saw the blue streak cover more of the tv, now 6 months later, it has all turned to green and the entire tv has a green tint. It looks like I am watching tv in murky green water.
    I am lucky that I purchased the additional warranty on the tv and finally got around to calling them. I hate to tell you this, but they told me that the optical light has gone up and they are replacing the tv.

    Jul 13, 2008 | Televison & Video

    2 Answers

    Hitachi rear proj TV, light blue vertical streak center screen, moves slowly


    Sounds like a source problem. What happens when you play
    a DVD or some other source??
    Need more info? Always give Model # and age----T.

    Nov 03, 2007 | Televison & Video

    Not finding what you are looking for?
    LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television Logo

    Related Topics:

    69 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top LG Televison & Video Experts

    Computer Repairing
    Computer Repairing

    Level 3 Expert

    14641 Answers

    The Knight
    The Knight

    Level 3 Expert

    74106 Answers

    Les Dickinson
    Les Dickinson

    Level 3 Expert

    18390 Answers

    Are you a LG Televison and Video Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...