Question about Philips Magnavox 27MS343S 27" TV
3/4 of the screen is black and the top is perfect clear picture
tv is about 15 mo old and never had a problem
If the loss of picture is either on top half or bottom half of screen. there are y buffer boards that go from top to bottom on left side of screen when looking at back that control those sections. when there is loss of half of picture then buffer associated with that area would be at fault and would need to be replaced. when i see a degrading symptom such as loss of picture on top half or bottom half leading to no picture issue normally you would check heat syncs on y sustain board and if not heating up after a few minutes of being turned on would recommend replacing y main and both y upper and lower y buffer boards as they complete a circuit
Posted on Aug 20, 2008
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Posted on Jan 02, 2017
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