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I hav a RCA dlp TV. Recently,the top right corner of the screen has dimmed out. It started small, around a 4 in triangle. Now after about 2 weeks it has grown to about 8 inch's. Can anyone help me. I replaced the lamp last Dec.
Thanks Jeff
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Unfortunately your light engine(also know as optic block) may need to be replaced. If your tv is out of warranty, it will probably cost around $1000 to fix. There is a slim possibility that the optics lens could have dust on it and a tech could clean it for much less than that. This is a very common problem in any dlp tv and they are all expensive to fix. I've replaced several of them at our shop, but about half of the customers won't have the tv fixed and will get a new one. Good luck!
Ur convergence is dead.U Know how to solders?Must replaced the 2 Convergence ICS and all it resistors.Tries Tv Repair World.com,Tvrepairkits.com for the convergence kit to repair it ur self.The shop will cost u $300 for parts and labors.
You will need to pull out the engine and check for any smudge on the lens. then proceed with the polarizers 3 of them they are sitting in front of the DLP chips, this is a delicates operation. the blue polarizer is the one which usually suffers burn-in (dark spots on the glass). if everything looks ok, then it means that the dlp chips are faulty, at that stage it will be uneconomical to be fixed.
Because the issue is occurring in multiple brands of TVs, mine is a Samsung plasma, the element that is linking all the issues together is the cable and/or SATELLITE boxes. I have actually called Samsung and they disavow any responsibility for the 2 and say that it is a cable issue. I have to agree. THE SOLUTION is to replace the cable box with a new box. I just did this last week and the 2 was gone. So if you are having this problem then i recommend trying the same thing. REPLACE YOUR CABLE BOX and/or SATELLITE TV BOX AND THE 2 GOES AWAY...at least it did for me.
This is the same problem as other posts have mentioned about the right side of the screen having a bluish-balck stripe down the side of the screen. Here's what's happening. There's a small light tunnel which has 4 very small mirrors located just behind the color wheel. The lamp shines light through the color wheel as it turns and the light goes through this small tunnel and is then relected off several mirrors before it is projected through the lens and onto the screen. Optoma apparently did not use a very good heat resistant expoxy glue when they assembled these mirrors and over time the mirrors drop down causing a shadow effect on the screen. It can be repaired without paying some repair shop a small fortune. Previous posts have a solution from another contributer whihc includes photos. I had to repair mine and it's worked fine since I used a decent expoxy to hold the mirrors.
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