Hi Karen,
It sounds like the
color wheel of your unit gone to malfunction and trigger that kind of symptoms. It needs to check by a qualified TV Technician because this kind of symptoms is not a DIY unless you have an experienced in electronics. If the buzzing sound came in front of the lamp assembly, then high chance that the
color wheel is already faulty. Lamp, ballast board, fans are also a suspect here.
Have a nice day!
Jdvillanueva
the entire time the tv is on. it seems to change a little when the picture changes.
its comming from the back of the tv.
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