Question about Philips ProScreen 4650 Multimedia Projector

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Philips LC4650G PROJECTOR COLOR ALIGNMENT PROBLEM

The projector projects a blurred image, the settings in the menu do not seem to help.

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fredcause
  • 51 Answers

SOURCE: i have a lc4750 proscan

most likely the mirror has moved or a lense has come out of its groove.

Posted on Dec 08, 2008

  • 1 Answer

SOURCE: Philips bsure sv1 projector

press menu, then picture, select mirror, then choose the "Aa" which appear to be the right way up for you, then press ok.   Done!!

Posted on Jan 04, 2009

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Look in the setup to see where you select from rear projection to front projection.

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if you can get a menu when you press the menu button, reset the settings to factory default. if you don't get a menu, the color wheel or the dmd chip is bad. either way, you'll have to replace the entire optical engine. and unfortunately, infocus no longer has any more in stock.

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You have to open the LP750 and check the alignment of your color lenses. You might be needed to adjust, also check your lamp too.

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The setting is in the Menu. It sounds like you went to the "Image" section which lets you make the adjustments you list. Try the "Source" menu, then "Mirror". That's where you will find options for Rear Screen Projection, which makes the image backwards.

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press menu, then picture, select mirror, then choose the "Aa" which appear to be the right way up for you, then press ok.   Done!!

Oct 04, 2008 | Philips bSure SV1 Multimedia Projector

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Two problems, first the menu appears to be burned into the projection, the bulb has less than 100 hours. Second when black is supposed to be projected it projects blue?


You have a bad lcd, you would probabaly have some blue lite leakage also. Any lcd projector should not be left on the same image for long periods, it wears out the pixels that control the lite thru. The blue lcd is usually the culprit.

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Unfortunately an expensive repair or total replacement are probably your only real options. Electronically the projector is fine but your problem lies in the physical optics part of it. Either part of the lense assembly or the refraction array is likely damaged or at least very dirty. I wouldn't suggest trying to clean it yourself as this is a 3 LCD projector and all 3 must align perfectly after cleaning or you'll end up with seperated colors. It could also be one of the LCD's is damaged but from your description I don't think so.

I have a client that had the exact same issue with a different VPL model and it was cheaper to go out and buy a new projector than to fix it.

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