Samsung LN40A550 Support Question
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Question posted by Anonymous-46585 on December 25th, 2011
Troubleshooting
i have problem with my samsung 40A550seris it not turn on and off under screen and for remote control led light screen not turn on
Current Answers
Answer #1: Posted by TVDan on December 26th, 2011 12:43 PM
This could be a capacitor problem on the power board. remove the back and check for capacitors on the power supply that has the top puffed up slightly. If you find any, replace them. These parts (capacitors) are available at places like Radio Shack. you can either replace them yourself, or take the power supply board and the capacitors to a local TV shop and they will likely charge $20 to replace them for you. The power supply is the module that the AC cord plugs into, and the value of the capacitors is printed on the side. Normally the bad ones are rated at 10vdc-16vdc and they could be 1000 to 2200 microfarads. These capacitors will look like a cylinder with a silver top. Google bad capacitors on LCD HDTV and you will see mass data.
TV Dan
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