Question about Philips ProScreen 4750 Impact Multimedia Projector

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Dark screen Dear Experts, I have the following problem with my Philips Proscreen 4750 projector - when I turn it on the picture is extremely dark. I can see what is going on in the picture (meaning that connection with the source works well), but it is very dark, i.e. almost unrecognisable. I can also see that the lamp is glowing with full brightness (black level normaly high), so it is not a problem with a lamp. For me, it looks like the driving voltage on the LCD pannels has 10 or 100 times lower amplitude (i.e. swing) than nominal and that everything else works properly. In this way it keeps LCD's in dark state, but with the small voltage that it drives them it produces the image which I still can see. Problem does not depend which video input I use and it exists also when I bring the menu up. In the beginning it was present just from time to time, then got worse and now the problem is present all the time. Could anyone give me an advice how to repair it myself? Thank you very much in advance, Bob

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Dear Bob,

Pls contact me at the soonest , i can solve this and i am willing to buy your unit.


Posted on Mar 04, 2009


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Dear Sir,

I am willing to buy over your Philip4750

pls contact me at the soonest

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