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Yes. I returned 2- 4k projectors! Uhd30 and uhd50. Optomas 4k actuators are making this noise. I refused to own it after finding out its normal? Great picture but i won't settle for that! Many YouTube videos showing optoma owners complaining about this! I'll wait a year or more till they hear the customer's demanding a solution. OPTOMA is great had a 1080 hd projector loved it ,but the 4k's issue no thanks.
Sorry, there was a problem. Please try again later.I am having the same problem. It still makes a loud buzzing sound even on test pattern. So annoying.
Sorry, there was a problem. Please try again later.Hello, the UHD60 utilizes a 4K UHD DMD from TI -- features an actuator. The actuator has a slight audible output (the equivalent to a low throttled fan). To verify that the sound is coming from the actuator and not a suspect fan, please go to Settings > Test Pattern. If the sound disappears when the Test Pattern enabled, it is the actuator -- therefore there is nothing wrong with the projector. If the sound continues with the actuator enabled, it could be a suspect fan. Please contact support to discuss in depth. :-) https://www.optoma.com/us/support/contact-us/ Thank You.
Sorry, there was a problem. Please try again later.There is very small noise but you should seat far from projector or your projector may be defective...
Sorry, there was a problem. Please try again later.I also had experienced hearing buzz noise. However after thoroughly checking the noise out it turned out to be one of my LED light bulbs in my wall fixtures. I replaced the bulb and noise was gone.
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