Recently we've been having problems with the color on our TV. The color and picture are fine when you first turn it on, then about 10-20 minutes into viewing, the picture "loses" it's red color/hue, and the image is then only in greens and blues. The image itself is clear, so it's just a color problem. If you turn the TV off for 30 minutes or so, it will turn back on with full color, but will again lose the red color and go to the green/blue screen after a few minutes. It seems like the length of time that the screen stays in full color is diminishing, so something seems like it's "going out" for lack of a better term. Any ideas would be greatly appreciated! Thanks!
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Re: problem with color
Yes you have a problem in the red crt driver board. Most likely the driver transistor is failing. This is a component level repair, so if you have no experience with TV repair, play it safe and call in a trained tech to assist you in this matter. Good Luck
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The loud noises came from the tv with a colors wheel design in it have to be replaced every few years,because the spinning of the colors wheel disc are spinning in very high speed in RPM to have it colors for the tv to operate correctly,the humming,loud motors noises and eventually the effect of the tv colors.The colors wheel disc are worn out and spinning hitting it axes motor,the colors wheel must be replaced to solved this problems.
Tv have a problems known as a convergence problems,it is dead.The tv convergence board it is dead,that why ur tv picture are R,G,B colors lines mis alignments,have colors shadows picture or 3D picture lood alike?The tv convergence board require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence picture problems.The shop will cost u like $300-350 for parts and labors.
DLP tvs have a design weakness,the problems it is call a convergence problems,it is dead.This convergence problems,will have happen many times through out the tv live.The tv have a colors R,G,B lines misalignments,have colors shadow pictures or 3D pictures look alike?Yes,than the tv board,that call the tv convergence board it is dead.The tv convergence board,must require changes 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv colors picture convergencce problems.The tvs shops will cost u like $300-350 for parts and labors.
Loud sound would be coming from defective color wheel that is mounted i light engine, next to lamp housing. Replacement of color wheel is required expertise/ experience and professional will do that for you in correct and in safe manner. Contact local tv repair shop to get color wheel replaced in tv. Thanks.
Ur tv have convergence problems,before ur convengence ICS totally went dead.U must have tools like soldering iron,solders,solder witch,and know how to solders to fix this problems ur self.Must replaced 2 convergence ICS,and some or all it resistors.Tries websites like Tv repair world.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.
I have the exact TV and had the exact same problems. It is the light engine with color wheel that needs to be replaced, and they are VERY hard to come by for this model. Our repairman has had our TV for 5 months and still cannot locate a vendor that carries the part. He said according to Toshiba, the part has been discontinued. If you happen to find one, please post. I'll do the same.
Not long ago I had my head inside one of those units,I was looking for something else but I did notice and repaired many loose conections and believe you have the same ,your problem is related to the screen voltage and a loose conection might be around the high voltage transformer.Please let Us know how it goes or if you need more information.