Question about NEC MultiSync VT590 LCD Projector
If it is a bluish colour then the organic polarizer plate that allows the blue light to pass through it to the blue lcd panel is burnt due to old age.
If the spot is made up of pixel shaped spots rather than a blurred area, then perhaps the lcd panel is faulty, but this is less frequently the case.
You could disconnect the power cable and remove the cover and look at the optics parts to check where any overheated parts can be found.
Then you can be certain which bits to replace.
Another option is to buy a faulty VT590 unit off ebay for a fraction of the price and have a go at swapping the parts between the units.
The lcd panels can be removed and replaced, but require precision alignment and you need the extender cables to be able to do it successfully. So give that a miss, replace the whole lcd prism assembly as one item.
Hope this helps.
Posted on Apr 11, 2011
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Posted on Jan 02, 2017
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