Sony Bravia KDL-37L4000 37 in. LCD HDTV Logo
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armando osorio Posted on Jun 22, 2016
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Sony LCD TV.

How do you test LCD front panel? My LCD HDTV has a solarize picture. I changed the main board and the T- Con board. I also checked the cable that connects from the main board to the T-con board, it checked good. Still have the same problem. My main question is; If the front panel is faulty, how do you test it?

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The Knight

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  • Sony Master 76,851 Answers
  • Posted on Jun 22, 2016
The Knight
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If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

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If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/
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Fault at its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
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In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
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Fault to its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
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About 3 yrs old. Picture is distorted for about 1/2 hour until tv warms up. Now has horizontal lines going through the picture and stays distorted on the right side of the screen.

This tv problems it is alway the board that call the T-CON decodering board it is dying.This T-CON decodering board sit in the middle at the bottom of the tv LCD screen panel.This T-CON decodering board decodes all the tv picture dots pixels before it go into the tv LCD screen panel itself.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish T-CON decodering board for the replacement.
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