Question about Toshiba 13A26 13" TV

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Green screen Had tv less than 5 months. Green screen started. Tried to adjust color nothing happened. Took it back to Best Buy. They tried to degauss it. Did not work.

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Re: green screen


Posted on Apr 03, 2008

Re: green screen

To clarify the repair the video board sets upright verticile that plugs onto the (main board) horizontal with locking tabs just lift up off clean pins with emery board spray socket with abrasive cleaner called (blue stuff )
I also checked for bad solder connections on the crt board and resoldered some connections on main board where the pins go in to the upright video board I hope this clarification is more complete
I am an engineer electronics tech for 27 years servicing

good luck people

Posted on Dec 11, 2007

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Re: green screen

If you can still see the video and some fine white lines running diagnally across the screen, it is very likely the picture tube itself which would likely be covered under warranty. If it is a solid green screen with no video, it could be a defective driver transistor or IC going to the picture tube.

Posted on Dec 18, 2006

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Tv is 10yrs old. Started with color only red and blue, standby blinking, now nothing. Had something like this long time ago is this worth fixing?

propably green not working. due to age its hard decision its worth or not to repair, but i recommend to sell for a few bucks to a hobby-freak and buy a new one...

Nov 13, 2011 | Sony FD Trinitron WEGA KV-32HS500 32" TV

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how extended is that warranty, and what does it cover? Sounds to me like a classic video controller board about to fail.

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Took the "questionable" receiver to 2nd TV. Satellite was awaiting connection message, then it said it was downloading a software update to the receiver. After the download completed, the color was fine.

Nothing to do with the JVC TV, it was related to a software update from Bell Expressvu to the 2700 card/receiver.

Mar 16, 2009 | JVC AV-32D305 32" TV

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No Picture or Sound

I dont think it's worth getting a repair man to come fix a Symphonic TV... honestly, they are problem prone... and It would cost much less to just buy a whole new one. I have a symphonic tv with no remote, and now, I cant switch into game mode! It's like they designed their tv's to be crappy!

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Green tint I can't seem to fix

Hopefully someone on here has a manual and can tell you exactly where the tint controls are. Also need to try adjusting the color level, turn it clear down so you have a black and white picture.
Is the picture still green over the screen with the color control
set clear down to black and white? If it does, you might
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By the way, the best way to adjust the picture settings on a
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May 20, 2008 | Mitsubishi CS-27205 TV

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Color problem with TV

Are you getting Green or purple or pink patches all over the screen?
This could be a problem of Degaussing. Have you placed any Magnetic source near the TV recently? Some Tape recorder or walkie talkie or a Speaker, etc? The Magnetic field created by any of the above sources can cause coloured patches over a colour TV screen.
It also happens if you shift the TV from one location to another.

The third possibility is that the Picture Tube's Red Output stage gone faulty. Unless you are a trained Solid state Electronics Technician, there is nothing you can do. Better go for a trade in.

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1 Answer

Green horizontal lines across screen

try adjusting the green screen control. remove the front bottom panel of the tv by removing any screws holding it in place. gently pull of the front panel, there are gromets holding it in place, you will be able to gently remove the front, just make sure you get all those screws. now reove the small wodden or plastioc panel. now you will see the screen/focus assy. check to see of the screen controls are the top 3 or bottom 3. adjusted the center screen it's the green one, the other 2 are the red & blue. it is best to adjust in a dark room where the lines will show up easier. good luck

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2 Answers

Green is not being displayed on my TV

If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

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