Question about Samsung LN52A850 52 in. LCD HDTV
Thanks for using FixYa. To check what has gone bad you’ll have to open the back of the unit and check the backlight inverter board. The inverter is the power supply source for the backlights and is normally supplied by a dedicated voltage from the power supply (24vdc). If that’s the issue then it’s always better to replace the inverter board completely just to avoid any future issues. If not then check the power supply board however, it seems to be the inverter board as the sound is still working fine. If you have some electrical expertise and know how to use a voltmeter then you can do it yourself, if not then its good to take assistance from a professional. Please do accept the solution if the issue is resolved or post a comment for further assistance.
Posted on Jun 03, 2010
Hello. this is a common problem which may be under warranty. The cause of your symptoms is usually a poorly soldered connection on a circuit board. This can be difficult to locate unless you have good TV diagnostic equipment. Begin by checking on the warranty because working on it yourself will void any warranty that may be in effect. J.
Posted on Jun 02, 2010
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Posted on Jan 02, 2017
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