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Hey everyone. Recently, my Epson Home Cinema 720 has developed a momentary buzz when it changes to one of the low-light modes (Theater Black, etc). I've had the projector for 3.5 years and I'm on my second bulb. I'm hoping this isn't a sign that it's near the end of its life already.


It's fine when I first turn the projector on, as it starts off in one of the standard full brightness modes. Once I turn on one of my source components and it automatically swaps to a low-light profile (Theater Black), it buzzes loudly for just less than a second. I can change back to a full brightness mode with no noise, but then changing back to a low-light profile again brings the momentary buzz. It sounds almost like the buzzer from that old board game "Taboo."


Any ideas what might be happening?
 
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