Question about Samsung LA40A450 40 in. LCD TV

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Television will not turn on; it's plugged in, the red light is blinking, but it doesn't turn on! The TV was working fine earlier, I turned it off with the Charter cable switch, after I had paused a show on Tivo (?). I have unplugging everything, turning the TV on from the cable remote, the television remote, and the switch on the TV itself. Help!

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I would have to say that you have bad capacitor in the power supply.Have you taken the TV apart?If you can take it apart,and send some pictures of the board with the power cord going to it,I can tell you which capacitors if any are bad.They have a rounded top to them instead of being flat.Also,how many blinks does the power light blink?Usually it's a series of flashes,and then it repeats.I hope this helps.Thank You very much!
Tyler

Posted on Sep 23, 2010

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This is a plasma unit and philips plasma's are nortorious for bad power supplys, your problem may very well be the power suppy in the television, it is possible you blew a low B+ fuse on the power supply. There is also a issue with the Y-sustain board failing in this model, If you open the back and looking at the unit from the rear the y board is on the left side of the unit and the PS is in the center. disconnect the Y-sustain power plug from the power supply and turn on the unit if the unit stays on with no red light then the y board is bad. it does the same then replace the Power Supply.

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