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Bright white screen with negative image

KDL-40Z4100/B if power is removed for an hour then reapplied the picture is good for 5 seconds then gets bright white. TCON has been replaced with no help. Any ideas?

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rhozel2010
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SOURCE: Picture suddendly changed to "photo

hi! your lcd cpu is defective, here in the philippines we try to re heat the cpu and it works.

Posted on Sep 04, 2009

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fieldy14
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SOURCE: Bright white screen with faint images

If lighting did strike, you would be suffering power supply problems, due to a power surge from the strike.
The problem sounds like it could be related to the LCD panel becoming faulty or if your able to test inside the unit with a multimeter, you can measure the voltages from the printed circuit boards, especisly those suppling power to the LCD panel as well as the Logic PCB, A small printed circuit board you will find either attatched to the LCD panel. I hope this helps.
Good luck.

Posted on Jun 07, 2010

eagle338
  • 4889 Answers

SOURCE: Hi, I have a Dynex LG 42LC2D LCD TV set. The

Hello again. I believe I was the one who suggested the t-con replacement. Now lets see if we can deal with this too. Does this yellow line become less prominent after the set is on for a while?

Posted on Dec 03, 2010

  • 1 Answer

SOURCE: Sony Bravia KDL-40Z4100 The screen is very white

my tv goes white screen can i fix it..

Posted on Jul 18, 2011

  • 8457 Answers

SOURCE: I have a Samsung LN37550A

U can't buy the T-CON board in any stores in anywhere in the world because this T-CON board it is not buy able it new u only can buy it as a salvage tv PCB board only.This T-CON board u can buy it as refurbish board only.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON board for the replacement.

Posted on Sep 22, 2011

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1 Answer

TV has vertical lines all over the screen. Sometimes I get the image back but very rarely. Still have sound going through. Is it a bad Tcon or bad connection?


Check for bad connections first by plugging and unplugging all various times to remove any oxidation or corrosion. If still no go, then the anomaly is caused by the T con board.

Feb 12, 2016 | Sony Bravia KDL-40Z4100 40 in. LCD TV

1 Answer

I have a sony bravia kdl-40z4100 TV which is approximately 6-7 years old. The color faded to a white, but I can see a picture and the sound is fine. Does this sound like the TCON board has gone bad?


T'Con board fault. If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Jun 29, 2015 | Sony Televison & Video

1 Answer

I have a Sony KDL-32BX300 showing vertical lines. Is this repairable?


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.

Apr 30, 2015 | Sony Bravia KDL-32BX300 32" 1366 x 768...

1 Answer

Faces looking strange on sony kdl-40z4100


T'Con board suspected. Contact the authorized service center for Sony.
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/

Aug 31, 2014 | Sony Bravia KDL-40Z4100 40 in. LCD TV

1 Answer

Sony KDL-40Z4100 standby light solid red, orange blinks every 4 sec, What part may have gone bad?


The red stand by indicates the set is in PC stand by the blinking orange timer is indicating the timer has been set or has an issue

Mar 13, 2012 | Sony Bravia KDL-40V4100 40 in. LCD HDTV

1 Answer

Bright white screen with faint images


If lighting did strike, you would be suffering power supply problems, due to a power surge from the strike.
The problem sounds like it could be related to the LCD panel becoming faulty or if your able to test inside the unit with a multimeter, you can measure the voltages from the printed circuit boards, especisly those suppling power to the LCD panel as well as the Logic PCB, A small printed circuit board you will find either attatched to the LCD panel. I hope this helps.
Good luck.

Jun 07, 2010 | Dynex 32 in. LCD Flat-Panel HDTV

1 Answer

Sony KDL-40WL140 vs KDL-40Z4100


KDL40Z4100 Product Features
  • 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
  • Motionflow 120Hz; improves TV & DVD viewing
  • DMeX compatible; allows seamless feature upgrades
  • DLNA® Compliant - view photos from another room
  • HDMI x4, HD Component x2, PC Input
Technical Details
  • Brand Name: Sony
  • Model: KDL-40Z4100/B
  • Display Technology: TFT active matrix
  • Display Size: 40 inches
  • Image Aspect Ratio: 16:9
  • is_hdtv_compatible: Y
  • speakers_included_description: 2 speakers
  • Height: 23.9 inches
  • Width: 37.2 inches
  • Depth: 2.8 inches
  • Weight: 39.7 pounds
  • Refresh Rate: 120
KDL-40WL140 Product Features
  • 16:9 Full HD 1080p Resolution (1920x1080p) LCD Panel
  • Motionflow™ 120Hz - clear, smooth motion for DVDs, TV
  • DMex ™ compatible; allows seamless feature upgrades
  • Enhanced XMB™ with 3D graphics incl. TV Guide
  • HDMI™ x4, HD Component x2, PC Input
Technical Details
  • Brand Name: Sony
  • Model: KDL-40W4100
  • Display Technology: TFT active matrix
  • Display Size: 40 inches
  • Image Aspect Ratio: 16:9
  • is_hdtv_compatible: Y
  • speakers_included_description: 2 speakers
  • Height: 25.4 inches
  • Width: 38.8 inches
  • Depth: 4.3 inches
  • Weight: 44.1 pounds
  • Refresh Rate: 120
Bottom line for the extra connectivity and DLNA certification i would go with the
Bravia Z-Series KDL-40Z4100/B 40-Inch 1080pBecause if you connect this to your in home network you can stream music videos and music off you PC onto your TV without the need for extra wired or memory cards etc.

Otherwise if you don't need this feature the other options are identical on the other TV so it is just as good a choice.

May 25, 2009 | Sony Bravia Z KDL40Z4100 TV

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