Question about Sanyo DS27910 27" TV

1 Answer

Green Screen A few minutes after I turn on the television, the screen goes green with white lines. Is this maybe a problem that can be fixed easily, or not?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

The lines are retrace lines and the green screen could be a problem with the picture tube or a problem with the video circuitry connected to the green gun of the picture tube. Troubleshooting must be done to determine the overall cause of this problem. Is it an easy fix. If I were in my shop and you bought this set in, it would be finished in a day. It being easy depends on the person, easy for me may not be easy for you, I have the equipment to fix this problem, and that is what it will take. let me explain: First I would use a schematic to show me the voltages that should be present on the picture tube socket board, for red green and blue. Then I would measure the high voltage on the anode and write it down (usually 20Kv to 30Kv) Then I would inject an known good signal into the TV (usually color bars) via the RF input on channel 3 From there I would make sure I write all of my measurements down and compare them to the schematic. At this point I would waant to make sure the picture tube could not be the culprit, I would power off the set unplug the set and then discharge the high voltage anode of the picture tube I have a tool that does this but it can be done with a big flathead screwdriver and a clip lead. Attach the cliplead to the screwdrive and then the other end of the screwdriver to ground. MAKE SURE THE SET IS POWERED OFF AND UNPLUGGED!! Manuver the flat blade of the screwdriver under the rubber cap of the anode connection on the top of the picture tube and make contact with the metallic clip (you may draw an arc so be prepared for an electrical discharge). Once you do that leave the screwdriver inplace as you remove the rubber cap and the metallic clip from the anode of the picture tube. Once this is done, remove the socket board from the back of the picture tube. At this point you will now use what is called a CRT Analyzer/Rejuvenator. Follow the setup and test instructions for the CRT Analyzer/Rejuvenator perform a tube check first and if the tube shows bad on any of the guns, perform a rejunvenation run on all threen guns, balance them and then test them again (repeat this about four times if needed), an more and you can count the picture tube as bad. If the tube is good or can be bought to a good state then reconnect the anode and socket board and reapply power. If the problem is gone then it was the tube, if not then it's the circuitry and then troubleshooting is needed, to find the problem in the video circuit. I hope this helps.

Posted on Sep 21, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

We have a Sony Bravia KDL-40V3000 flat screen television. About 6 months ago, the screen started displaying white, green and black vertical lines and dots. This continued for a few weeks and then the...

It's a connection inside the TV that's faulty. It could be as simple as reseating the ribbon cables that connect the control board to the glass display. Or it could be that the fault is on the board and needs to be replaced. The fact that the problem comes and goes should tell you it's fixable.

Apr 28, 2017 | Sony BRAVIA KDL-40V3000 Television

2 Answers

Screen goes green with white vertical lines

I think either your red and blue filaments are not fully intact causing the green to take over or you have other electronics like subwoofers too close to your tv.

Try degaussing your tv, it might have a degaus button at the back or check the menu.

If you've tried those things without luck, respond with more details.

Hope that helped.

Jan 01, 2008 | Zenith C32V37 32" TV

1 Answer

My Sony kp-53xbr35 Rear Projection TV screen turns green for a few seconds when I turn it on, then goes blank. Audio still works. Timer/Stand-by blinks until screen goes green, then stops, even when screen...

check the lamp out if the lamp go to this website or if the lamp is not the issue maybe can be the board in the same page you can find the parts that you maybe would nedd

Dec 18, 2009 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

My sony xbr 60 picture turns off and on

No solution for you...but I have the same problem. I also had the green blob problem which sony fixed earlier this year. It happens on an intermittent basis. Screen goes off, standby light blinks green, then comes back on. Its off for maybe 1-2 min.

Nov 07, 2009 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Screen turns green and tv powers off.

visit your local service center. you cant do anything more up to this point

Jul 08, 2009 | Sony KP-46WT500 46" Rear Projection...

1 Answer

Green Vertical Lines across screen- Sansung HLR5067WAX/AA

Hi, your are experiencing the first stages of a light engine burn out. it will fail soon. i recommend replacing the light engine asap.

Samsung Part Number: BP96-00822F---$895.00

May 22, 2009 | Samsung HLR5067WX 50" Rear Projection HDTV

2 Answers

Sony Trinitron 36" TV

Try a "hard reset"===unplug AC for a long time, like overnight.Let me know if there is any change.

Mar 07, 2007 | Sony FD Trinitron WEGA KD-36FS130 36" TV

Not finding what you are looking for?
Sanyo DS27910 27" TV Logo

75 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sanyo Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76016 Answers


Level 3 Expert

5658 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

Are you a Sanyo Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides