Question about Sony KDL-46XBR4 46 in. LCD Television

2 Answers

Sony KDL-46XBR4 right 2/3rds screen darker, motion blurred

I have a identical problem to the problem pasted below - but can make it go away by applying pressure to the panel:

"By krisvannoy on Oct 09, 2009 - I have a Sony KDL46XBR4 LCD that has a problem with the backlight. It is dark on 2/3 of the screen from the middle to the right side. After about 35 minutes the problem goes away"

I opened the set, removed the left speaker and high voltage shield, and after much analysis determined that if I press on the plastic strip holding the fluorescent tubes (with a plastic high voltage-safe probe and shield removed) the problem goes away immediately. I loosened the screw and adjusted the fit - but it did not last. If I press on the top right of the screen, slightly flexing the panel, the problem goes away, even if the set is "cold".

In addition to the darker image, the right side has motion blur until the problem goes away - then it is fine.

Would a defective inverter behave this way, or is there something wrong with the fluorescent tube connections? Can they be adjusted? The shop manual warns the backlight tubes can be destroyed if I remove the plastic holder screws. The problem seems to be under there - is there a way to remove that to see what the problem is?

After the set is warmed up (25 minutes or so), the tv works perfectly.

Thanks,

Ron

Posted by on

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I have the same description of the problem , I replaced the TCON but it is still the same. If the next part is going to be too expensive i'll just buy another tv set.

Posted on Jul 13, 2010

  • mrremedyo Jul 16, 2010

    I have the same description of the problem , I replaced the TCON but it is still the same.


    I have a feeling that the brackets from the back created a misalignment of the LCD overtime because of the weight so I decided to align it and use the base mount that came with the LCD TV and tried it first while its on the floor. Guess what? It worked for me. I hope it works for you too.

×

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 178 Answers

Hi Ron, thanks for describe many valuable details. You suspect something wrong with the fluorescent tube, if it is true, shall be dark on top or bottom, not left or right, also the problem with the backlight the TV will shut off and the timer LED will blink 6 times.
I think there is the bad connection inside the panel or the t-con board, only think you can do is try to reconnect the wires under the aluminum foil (see the picture) or replace the panel.

Sony KDL-46XBR4 right 2/3rds screen darker, motion - 9cf8352.jpg

Posted on May 10, 2010

  • Shukai Fung
    Shukai Fung Jul 13, 2010

    Right, I said "is the bad connection inside the panel or the t-con board, only think you can do is try to reconnect the wires under the aluminum foil (see the picture) or replace the panel" So next you can replace the panel.

×

Ad

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sony bravia kdl-46Xbr4 right side of screen is darker until the tv warms up flickers like a floresent bulb and is a brownish color


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Oct 01, 2016 | Sony Bravia XBR-Series KDL-46XBR4 46-Inch...

1 Answer

Part of screen is blurry but goes away when it is


It under a year?Call Sony for warrenty repair,it ur Tuner signal board it have problems.

Apr 14, 2010 | Sony KDL-46XBR4 46 in. LCD Television

1 Answer

VERTICAL LINES WHEN TURNED ON THEN CLEAR UP AND RIGHT HALF OF SCREEN DARKER


I Hope this helps!

Sony has extended the Warranty for people experiencing picture anomalies due to LCD Panel failure through October 31, 2012.

See here:
http://esupport.sony.com/US/perl/news-item.pl?news_id=378&template_id=1

IF YOU FOUND MY SOLUTION HELPFUL PLEASE VOTE 4 THUMBS UP.
(any less hurts our averages)
Thank and Good Luck!

Jan 10, 2010 | Sony KDL-46XBR4 46 in. LCD Television

1 Answer

Sony KDL-46XBR4 much darker on the right side of screen


ITS THE PANEL ASSY. I JUST HAD MY REPOACED. SONY WILL HONOR A COURTSEY WARRANTY UNTIL 2012

Nov 26, 2009 | Sony KDL-46XBR4 46 in. LCD Television

Not finding what you are looking for?
Sony KDL-46XBR4 46 in. LCD Television Logo

1,304 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

kakima

Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

74383 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

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

Answer questions

Manuals & User Guides

Loading...