Question about Lenovo IdeaPad S300 59359327 Silver Gray 3rd generation Intel Core i5-3317U Processor1.70GHz 1600MHz 3MB

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Upper sise of screen flickering problem - Lenovo IdeaPad S300 59359327 Silver Gray 3rd generation Intel Core i5-3317U Processor1.70GHz 1600MHz 3MB

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Technology b> A laptop's display assembly consists of an LCD panel, an inverter board and a backlight lamp. The inverter board supplies power to the lamp which lights up the LCD screen as it generates images. Light from the lamp is then uniformly distributed over the panel to create images. b> Cause b> Flickering is commonly caused by a damaged or malfunctioning inverter. Because a faulty inverter is not able to supply adequate power to the backlight lamp, the screen goes dim each time the backlight loses power. In some cases, flickering may also be caused by a faulty connection between the inverter and backlight lamp. Diagnosis b> Resolving a laptop screen's flickering problem entails correctly diagnosing the problem and replacing the faulty component. You may diagnose the problem by hooking up the laptop to an external display unit, such as a projector. If the external display has the same display problem as the laptop's LCD screen, it is indicative of a motherboard or video card problem. If the external unit displays bright, crisp images, the problem is probably caused by the backlight or inverter. b> Solution b> You may repair a laptop screen's flickering problem by replacing the inverter board or backlight. Order parts from a trusted supplier and replace the component by referring to your product documentation.
http://www.tech-faq.com/how-to-repair-a-laptop-screen.html http://www.laptop-repair.info/laptop_screen_repair.html b> Hope this helps.

Posted on Jan 21, 2013

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