Ok, let's narrow this down. Turn the TV off, and make the room as dark as possible. Get a good idea of how black the screen is. Now turn the TV on and watch the screen. Does the screen change from pitch black to a very dark gray, almost like it's glowing slightly?
no...my husband has the back of the tv open and it's unplugged
Stand behind it and find the scan drive and the sustain board. They are on the left and right hand sides, respectively… large boards with heatsinks attached.Now, turn the TV on (so you can hear the audio) and let it play for 30 minutes.Now touch the heatsinks… are they all hot?
where is the part number located...or, what might it contain?
You helped us with our 50 " Vizio tv earlier this week. We replaced the Y sustain board at your suggestion. When we turned the tv on one of the IC chips on the upper y-buffer board started smoking! Now what?!?!
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