THere are an increasing number of white spots (damaged pixels?) on the projection screen. It started with one, and one flickering, now there are 4 clear spots, and another flickers. Can this be solved?

Thats caused by the DLP chip. Unfortunately most Toshiba models will end up having to have both the DLP chip and the formatter board replaced at the same time to fix the issue where as other models only require replacing the DLP chip alone to fix the white dots issue

this sounds like a bad optical light engine, the spots will only continue to grow in number.

See typical engine for this brand, lens on left is where image comes out and is directed on the screen.

The DLP chip is going bad. You are better off buying a new projector.

On a WS-73735 the white spots usually mean a failing or damaged optical light engine.

It is a major part----Google the model number with "problems" or "light engine" etc.

This is a problem with the internal DMD chip which needs to be replaced.
Contact BenQ Service,should be covered under warranty.
Samir

It's a bad pixel spot. I have a TV that has a dark spot.
Nothing you can do about it.

These are failing pixels in the matrix. Eventually the screen will not be viewable.
The screen is made of millions of points of l;ight called pixels They turn on and off to create what you see on the screen. When they fail they become minute white spots.

My Samsung LCD has white spots on the screen. The tiny spots seem to be increasing in numbers. I am outside my warranty. Is this going to cost a lot. It is a 43in screen.

you might have what you call "dead pixels" or a "stuck pixel" try a simple test like this one now it is not the most creative one, but it does help to see if that is the case. u might be able to Fix a STUCK pixel, but unfortunately you can not fix a "DEAD pixel" simply because it is DEAD.
try this website for simple fix instructions.
if is dead pixel what you have, if u can live with it, great, if not , it might be a good reason to get yourself an another monitor.

Good luck

If these spots are small, they are likely the visual effect of a failing DLP chip. When some of the tiny mirrored surfaces on the chip stop moving, this is the result. This is not something you can fix yourself. A Samsung authorized service center will charge $400-$500 to replace it for you.

michtech