Originally Posted by spmurph
I have a 62HM195 that was here when I bought the house about a year and a half ago. It has always made a humming noise that has been constant since I've had it. It stays even after the TV is turned off, then it shuts down and sounds like a jet engine powering off.
Lately, there has been an increase in a grinding sound and the occasional picture flickering (mostly when the TV starts up) accompanies the grinding.
Very rarely the picture will go completely out and will return once the tv is powered on/off. Other, than that there is really no effect on the picture.
I took a video of the problem:http://www.youtube.com/watch?v=_eFGHe9eZpE
Its either the color wheel or the cooling fan for the bulb.
The cooling fan stays on 4-5 mins after you shut down to cool down the bulb.
If you feel adventurous, take the back cover off and carefully stop the cooling fan while its running. But do it briefly or the TV will shut down.
If when you stop the fan, the noise is gone, you've found it.
If when you stop the fan its still making the noise its the color wheel and there's little you can do about that, but get a new light engine.
I just sold my 56HIM195 but if it is the cooling fan, I'd be surprised if its not the same one I used and I have an extra from mine. Its about 5" or 6" square and has "AFB1212L" as the part number. If you need it, PM me.