I started getting a buzzing noise on the right side of my TV. A few weeks ago I replaced the ventilation fan that is located on the right side just behind the bulb with a new OEM fan. The noise is not from that fan, but seems to be coming from behind the fan somewhere. Is there another fan in that area or is this coming from the bulb or what? The noise seems to be at it's worst when the house is harm like during day light hours. During the night the TV seems to cool off enough to not cause this noise. The noise stays on for about a minute or so until after the TV is turned off. It seems like when I was replacing the ventilation fan I heard a milder version of this noise and unplugged the ventilation fan to see if it was coming from there, but it was not. Does the bulb make noise when it starts to fail?

When the TV was under warranty it had problems with the color. They replaced some sort of device in there. I want to say color wheel but I'm not totally sure there is even a color wheel in this TV.