Question about Sony KDL40EX520 Bravia KDL-40EX520 40 Inch LED TV 1080P Full HD Multi

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Sony kdl 40ex520 display turning green

Display screen turned green when the tv was made 'on'. The color of pictures are in green and red patches with vertical lines all over the screen.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

mistersony
  • 320 Answers

SOURCE: Multi colored vertical lines

Probably you need an optical block, but it would take a tech looking at it to be sure

Posted on Oct 18, 2008

  • 1 Answer

SOURCE: different color vertical lines on screen Sony KDF-E55A20

Go to the last page of troubleshooting in the manual and perform the system reset procedure. Basically hold the Wega "arrow up" as you manually switch the TV off. It will automatically switch back on and reset. I had only vertical colored lines on the screen, with audio but no response to any remote control functions. The rest worked perfectly.

Posted on Sep 10, 2009

circuitworld
  • 335 Answers

SOURCE: A fine green vertical line displayed on the Sony Bravia 46.

Thats a pixel data problem, there's no data being sent to that row of pixels so they don't change color. This is a pixel address registry (PAR) issue and the PAR circuits need to be serviced its usually due to open or shorted SMT components on the PAR circuits. PAR also sends data, voltage, and control to each pixel, the green line you see are pixels that have voltage but because there's no data sent too them their all green because there's no control. If the pixels have voltage but no data or control they show up as green red, blue, yellow, or whit line vertically down the LCD panel. The vertical-horizontal section of PAR are controlled by 16 to 32 bit micro-controllers which may need replacing. If its under warranty take it back if not have your local repair center fix the tv for you...


Posted on Nov 09, 2009

tvtek
  • 1284 Answers

SOURCE: sony bravia kdl 32l4000 - color bars running vertically on screen

In most cases is the screen is covered with vertical lines all the way accross the screen then the T-Con module is at fault. The t-con board is replaceable without having to replace the entire LCD panel which would usually make it cheaper than replacing the TV. The part number I come up with is 1-857-213-11. Please take a moment to rate my answer. Thanks...

Posted on Dec 02, 2009

welcomejee
  • 10594 Answers

SOURCE: Vertical Lines on Sony Bravia TV.

I'm afraid, its problem of LCD Panel (screen).
LCD Panel replacement is only solution for this problem and will cost you 70% of TV price, please contact nearest Sony service center for LCD Panel replacement.

Posted on Dec 13, 2009

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1 Answer

How do i set convergence of red,green ,blue through service mode


Most common cause for this on the Sony KDL 40EX520 is that the connections to the screen across the top edge of the panel become loose causing blurred picture, mis-aligned colors etc. The Fix requires dis-assembly (Removal of the entire case) and re-seating/resecuring the connection across the top of the LCD Panel.
There is a pretty detailed video of the process (less the disassembly) here: https://www.youtube.com/watch?v=80PfZXFGDvQ

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the ribbon flat connection tapes that connect the led panel driver to the panel have prob delaminated
this cant be repaired easily and you would need to replace the panel

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The screen turns blue after about 2 minutes of turning on the TV


Sony TVs has an Optical Block issue. If there is an issue with the optical block, then there will be green, blue patches or tint on the TV display. Try resetting the TV to the factory settings and try Power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue still persists, then TV may require service. You can contact the Customer relations team and check for the available options. Sony had repaired free of cost for such issues. Hence, contact the customer relations.

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My Sony Bravia's screen is showing images in red and black only. By playing with the input sockets at the back (pulling out the leads and reinserting) it was temporarily fixed the problem but, now it seems...


If you are using Component Input (green/blue/red inputs) with component patch cords, try using other input jacks ( Video In (yellow) or Cable/RF In). If the color is good, then replace your Component patch cord, the green one is broken.

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1 Answer

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it's in a service test mode. have you unplugged the tv? that should reset the tv..if you still have problems after ..it will need repair.

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If you are using a HD cable box or satelite with component outputs, be sure that all 3 cables ( green, red, and blue ) are making good connection.A loss of red or blue will cause color shift. Usually,if the tv menu comes up as the correct color but the picture dose'nt, it is most likely a signal problem.

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1 Answer

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Hi, J ! You didn't say how old you set is, but to me it sounds like you may have a warped shadow mask in you picture tube. A shadow mask could be compared to a piece of screen wire. It's function is to make the electron "beams" from the three electron guns strike the proper phosphor dot to produce the proper color- red-green-or blue. If this is the case the picture tube would requie replacement. Stargazer

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