This morning my TV was working fine, but when I came home this afternoon to turn it on the screen showed green with lines running through it. The sound was running fine and you could vaguely see the TV show in the background. The other TV upstairs worked fine, so I am guessing the problem is with the TV.
TV was working fine, but when I came home this afternoon to turn it on the screen showed green with lines running through it. The sound was running fine and you could vaguely see the TV show in the background. The other TV upstairs worked fine, so I am guessing the problem is with the TV.
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Could be serious...but first check the screen modes (for split screen, format, etc) to be sure the tv is set up properly for the picture you are trying to watch. Switch the input to a DVD or something similar. Is it the same? If not, you have a mode/resolution problem with the tuner and perhaps some other device.
These are retrace lines. The screen on the red tube is turned up too high. Inside the set there are 6 knobs. 3 for focus & 3 for screen. Turn down the red screen until lines are gone. These knobs are usually found by pulling of the front panel.
i have thought about this since you first posted it. if the demo is good then the light engine is ok. it sounds like a problem in the chassis. probably on the DM and the terminal board. to repair the chassis would cost about $250.00 plus shipping. go to www.tv-techs.com
how old is the tv ??
if this tv is older than 5 years it may need to refill the liquid on the proyection bulbs and/or could have contaminats in the fluid causing the ghost and to fix that you will need a professional person to do it
I'm trying to fix the issue on my 43FDX20B. So far, I'm able to move the lines up and down, but can't get the left/right motion to fix it. The attached link has the dynamic mode instructions, so you can correct this issue yourself.
The only thing I didn't have was the screen overlay jig the manual talks about. I decided to create one myself and use the screen as a beginning template. I went to our local hardware store and picked up some home window weather covering. The roll cost about $15, is a clear strong plastic and the template was very easy to create. I used a straight edge after I put dots on the plastic and measured the lines for being square and equal after I took it off my tv. Good thing is that if you don't like what you make the first time, you have a 25' roll to use to try again (ha).
If the screen control for the green picture tube is set too high, then the colors will be greenish, there will be green where there should be black and there will be fine curved lines (retrace lines) in the picture. If you feel confident then you can open the set and look for the focus block which has the 3 focus and 3 screen controls. One row is labeled Screen and the green control will be the center one. Try turning that control down a little and see is the green background and curved lines go away. If they do not go away then there is something more serious wrong. If you do not have experience working on projection sets then allow a qualified tech to handle it for you.
Very common problem John with projection sets. They have High powered audio amps inside the sets to control the red,green, and blue convergence for the color alighnment on the screen. These amps blow out and should be replace all at one time. There are also resistors that can go out at the same time and your gonna have to have these replace also if they have any discoloration to them. This is not a job for the novice to attempt, as there are HI Voltage safety issues involved, and should be done by a trained tech. This repair should run you anywhere from $250.00 all the way up to $400.00 bucks, depending on where you live and who you get to repair the set. It's always better, in my opiniuon to call a factory authourized repair place as they should have all the service data and most parts for your set. Good Luck