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Topic: Benq HT2050 flickering. Is it the color wheel?
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Joined: May 16, 2020
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The lamp on my HT2050 exploded recently. When I replaced the lamp, there was glass dust everywhere in the projector case so I suspect this might have damaged the color wheel. Certain shades of red and blue now flicker on screen when the lamp is in Normal mode. Eco mode has no flicker.

I'm going to inspect the color wheel and housing for damage and debris. If this doesn't fix the flickering, where can I purchase another HT2050 color wheel? Ebay has many listings for the w1070 color wheel. Is the w1070 color wheel compatible with the HT2050?

Is it possible that my new lamp could be causing the flicker? I doubt it because the flicker only occurs on certain shades of blue and red.

Thanks for the help everyone.

-Jeff
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Joined: Mar 28, 2005
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Not sure if you got a BenQ factory lamp, or an aftermarket lamp, which could contribute to the issue, but if you are looking for more detailed advice on an issue, hopefully FixItFrank will swing by.

If not, please check out his channel on YouTube. You should be able to message him there as well.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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Thanks again for your help. I purchased the lamp from myprojectorlamps.ca. The website mentions "original" but I'm not sure if that translates to "factory".

I've been watching FixItFrank's video's. What an amazing wealth of knowledge he has posted online! I'm confident I can perform the repair myself if necessary because of his video's.
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Update:

Thanks again AV_Integrated for the very useful information. I've been in contact with FixItFrank. He suggested that the IR filter on the lamp housing might be defective. He said the IR filter must have a red/blue reflective tint. IR filters with a green tint are cheaper models and cause problems. Sure enough, the IR filter on my housing is tinted green. Frank commented that this is a common problem with cheap housing suppliers.

https://www.youtube.com/watch?v=pym7D7etOcM @ 19:00 <-- demonstrates the IR filter

I contacted my lamp supplier who then contacted their housing supplier. Both parties agree that the flickering likely is due to the green tinted IR filter. My lamp supplier will be sending me a red/blue IR filter once they receive it from their supplier. Might take a couple weeks to get delivered to me.

Once I have the new filter in, I will update this post with the results.
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The flickering is now gone! I received the replacement filter today and installed it in minutes. Thank you so much FixItFrank and AV_Integrated!

FixItFrank nailed it. His first guess was that the flickering was caused by a low-quality IR filter that was part of the lamp housing. This filter/lens should have an obvious red transparent coating on it but mine was clear.

This video shows what the difference is between the two filters: https://www.youtube.com/watch?v=pym7D7etOcM

I ordered the lamp from myprojectorlamps.ca (recommended by projectorcentral.com). After some communications issues, I was finally sent a red replacement filter which was very easy to install.

Problem solved. Thanks again FixItFrank and AV_Integrated!