TV Flickers up and down and screen is shifted to the right w/ red color dominating the screen.
I have a 2004 Hitachi 51G500A rear projection TV. The TV Flickers up and down and screen is shifted to the right w/ red color dominating the screen. Under the assumption and the advise of a "Tech" was advised it was the IC's Digital chips. I replaced them by soldering the new ones to the board. It took about 4 total to do it. With much dismay the exact same screen appeared. Can anybody recommend some other solution??
Vertical scroll won't stop - is it the vertical oscillator circuit? How can I fix this problem?
Re: TV Flickers up and down and screen is shifted to the...
I am having a sony vega tv of 2002 purchase. for last some days, after 10 to 15 min. of starting of tv, the flickering band starts on the screen. it distorts the picture also. and after sometime, everything becomes ok for some time & after that again intermittent flickering goes on.
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If the green is all dominating then it is the red or yellow that is missing in the spectrum. The likely problem is that one of your color guns has burned out. good news is they can be replaced but you have to determine if you have three individual color guns, or one that projects all three colors. (don't skip the easy analysis first though) Check your cables to make sure they are not worn, cut, nicked and most certainly check to see that they are plugged all the way in. Try jiggling the red and yellow inputs while someone watches the screen to see if it flickers. If it does you could just need a new cable. Swapping it out with a known working cable also will work for testing.
U tries go into the tv colors setup and turn down the color RED,might help?Tv could have a problems known a convergence problems,it dead very common problems for old DLP tvs.The tv have R,G,B colors lines mis alignments,have colors shadows pictures or 3D pictures look alike?Yes,than the tv have a dead convergence board.The tv convergence board require changes 2 STK convergence ICS and some or all of it resitors too.For fixing the convergence board to solved convergence picture problems.The shop,will cost u like $300-350 for parts and labors.
This might be something really simple... In a large number of DPTV310 chassis, of which this TV is, the yoke connections where put in place with black electrical tape just below the retaining rings. Job is to loosen the rings, remove the tape and push the yoke back in place and tighten down retainer.. Be careful not to throw off the tilt of the yoke.
The adhesive on the tape, over time, gets hot so many time it becomes slippery and allows the yoke to fall away from it's position dulling the look of the image (or focal length) causing the problem you're describing here...
It also throws off the convergence - so in attempting to converge it just looks worse.
the last hitachi that had this problem i fixed it bad finding bad solder conenctions throughout the board that the convergance ic's are on, also i foind some on the two main board in my repair. hopefully resoldering the convergance foard will fix the jitter or jumping around problem. if the picture is too red you can also try turning down the screen control slightly.