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Why does my TV have a green screen but no picture?

Screen is bright green, no picture

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Single color predominant screen; is the fault. There are many reasons for this fault. It will be best to contact any service technician. 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/ Probable causes are repair procedure to this fault "One color predominant screen" is given by one among the posts.

Posted on Apr 09, 2015

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Posted on Jan 02, 2017

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Colour is not normal, sometimes the picture is too dark, football pitches bright green, peoples faces very orange.


that would be a failing tcon board on the back of the screen.you would need to replace this part but they are available on ebay the part number is on the tcon board. match the numbers a version number to get the matching board for the screen. tcon board is the board were the main wire cluster goes to the screen board this is the tcon board.

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IM A TV TECH. I HAVE A SONY LCD KP-60XBR800 I HAVE NO RASTER. POWER OK, MENU OK BUT NO RASTER ON TUNER, TUNER VOLTS OK,CAN YOU HELP ME PLEASE. THANKS my email sergioaguirre0182@hotmail.com


check the high voltage with the screen control turned up high where there is no raster. suspect problem within the video circuit where there is no high voltage or defective picture tube.some time when the screen is black and the screen control advanced,you can see if the tv has video or vertical or horizontal problems on the screen.service the high voltage circuit if there is no raster or high voltage is seen.no raster can be caused by the no heater or filament in the CRT.---- a defective picture tube can cause many problems, such as, poor brightness ,missing colors,intermittent picture,poor focus,a single-colored raster,arching in the gun assembly,retrace lines in the picture,negative picture,chassis shutdown,noheater or filament lit and no raster to name a few.an open filament or heater can cause no picture or no raster symptom.a defective CRT can have an extremely bright screen.loose particles of the cathode element can lodge between the grids and cause an intermittent black and white picture. simply tap the ends of the CRT gun assembly and notice if the picture begins to flash off and on.---- with a leaky picture tube after turn on the raster dims and get extremely bright.a dim picture with no green in the raster can result from a bad green assembly. a heater-to-cathode short can cause a raster to change colour or a result in no raster at all.replace the picture tube if there is severe arching in the neck of CRT. excessive brightness with retrace lines and a vertical collapse to a thin line can be caused by a bad coil on the neck board of the picture tube.rejuvenate the picture tube when there is very bright green screen. check for the resistance change on the resistors of the CRT neck board for an excessively bright picture with retrace lines.excessive dust inside the CRT spark gaps within the picture tube socket can cause the very bright raster and the chassis shutdown.a defective video amp,luminance buffer,or reference transistor can cause a bright picture with retrace lines. -------- for getting any required parts to replace you can get it from www.radioshack.com or from www.partstore.com or from www.shopjimmy.com --------- thanks.please do rate the solution.thank you for using fixya.keep updated.

Sep 06, 2009 | Televison & Video

1 Answer

Green band


http://www.mitsubishi-tv.com/support.html
click warranties...
Important Warranty Announcement for LCD TV Owners

Jul 26, 2009 | Mitsubishi LT-52244 TV

1 Answer

Our Mitsubishi WD 52525 goes to blue screen and shuts off.


It sounds like you TV is overheating and the video is suffering and the lamp is overheating as well. Also, if your TV is over 2-3 years old, the mirrors (behind and below the big front screen) desperately need to be cleaned. Clean all filters and fans as well. (Look on side and behind the unit). Is the TV in a "hot" environment and/or dirty environment? DLP TV's are NOT sealed units. They need to be cleaned every few years to work well to have a good, clear, bright picture.

Jun 24, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Sony kp57hw40


Reset RGB screen controls....located behind lower front speaker
grill & access cover.....turn down ( CCW ) green screen slightly
and other two colors as needed.....T.

Mar 05, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Picture has green tint on startup


Jar-Head, bad news, the picture tube has a mild short in the green cathode, tech can come out and try to restore it but it`s usually a futile attempt on sony tubes, sorry to be the bearer of bad news, BMW Rider

Jan 14, 2008 | Sony KV-32S26 32" TV

1 Answer

Green Screen


Sounds like the green tube is shorted.

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can you clarify that are you seeing white bright lines on screen & is there faint picture with green color?

Sep 16, 2007 | Televison & Video

1 Answer

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Is the green really bright with small white lines in the screen?? If it is its probably a shorted picture tube. That is if you still have sound. If you have no sound its probably a power supply problem in the sweep section of the set. This is not a repair for a consumer to do as its a solid state set and there are no user serviceable parts inside these sets. Get a service person to assit you with this repair. Good Luck

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1 Answer

Some part of TV has been fused causing no picture on screen , only bright green horizontal lines , not even video channel could be set ,cannot see menu on screen please help by specifying possible...


if the screen is real bright green with thin small white lines in it its probably a shorted picture tube. Or a shorted Green driver Transistor. Good Luck

Apr 12, 2006 | Thomson 14MG135 14" TV

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