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I changed the lamp bulb in my tv about 6 months ago and now I am seeing spots on the screen. They appear to be dust spots. I tried to remove the lamp and clean it up a bit but to no success. I'm not sure my model number, but this tv seems to be similar. Any suggestions?
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1,white spots appeared on screen,means the DMD chip is broken,you need a new DMD chip.
we supply the new DMD chip,it's life is 6 years,
and the price is USD190
Have a nice day!
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
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Lampdeng Limited
Unfortunately lamps go bad without the visible state of being bad. I don't know who or where you bought the lamp from but I order all my lamps through dlplamps.com
The clicking sound you hear is the lamp inverter igniteing the lamp but the lamp is bad.
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!
We have a PT-50LC14. We replaced the lamp 6 months ago with a TY-LA1000 bulb we bought from a company online (not directly from Panasonic) and it worked for 6 months. Then the TV started turning off on it's own...sometimes it would not come back on for an hour or so. We called the lamp company and we luckily had 1 day left on our 6 month warranty!! They sent us a replacement bulb and the TV would never power on. It would try to power up, but the bulb would never ignite. The power light would flash and then the lamp light would flash every 5 seconds. I had a friend that has the same type of TV and she ordered her bulb directly from Panasonic. I borrowed her lamp and it powered right up. We then called the online company and they sent us yet another replacement bulb, and I tried it today and it works. It seems like these TVs are very particular about the type of bulb used. Next time, we will be ordering ours directly from Panasonic and just paying the extra $100. We have been without our big screen for 2 very long months! I had called a local tv repair shop, called Panasonic directly, and read through countless internet forums, and I thought we were going to have to replace the ballast or get a ballast repair kit and start messing with the circuit board.
The HD-ila sets accumulate a lot of dust in the light engine. The worst offender is the little fold mirror just under the lens. I take my set apart about every 8 months or so to clean all the dust from the light tunnel and all lenses, mirrors, diffusers etc. The picture really regains it's pop when this is done. Unless you are a skilled technician though, I would recommend against attemptimg this procedure as you need to disconnect the individual color lcds. Check with a local service center to get it properly cleaned.
The gray spots are caused by dust on your lens, very easy to clean.
Power down the TV.
If you open the right side access panel (right side as you are looking at the front of the TV) you can see it in the middle, it's not very big. Using a scratch/lint free cloth, gently wipe off the lens or use a vacuum to **** up the dust being careful not to actually touch the lens.
Replace the access panel and enjoy your spot free screen.
Good Day,
There is a device that can be used to correct your concerns. Symptoms can be correct by EE PROM CORRECTION TOOL: LSUQ0100. Instructions included. Try calling 1-800-458-6053. It's under $100.00 and takes about 1 hour from start to finish.
Good Luck, big IRISH.
Tiny particles of dust on the light engine lens can cause this (and was a service call for me about a month ago), or possibly the expensive light engine.
Your problem could be dust or dirt on the lens inside the reflection cavity or the problem could be the light engine. If the problem is the light engine, thank god you have an extended warranty as the light engine alone cost somewhere around 1000 buck. Good Luck.
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