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Invertor board is relatively cheap ($20-60) and somewhat easy to replace. &nbsp;May be difficult to find for a Sony though. &nbsp;I would start there...<br />

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Invertor board is relatively cheap ($20-60) and somewhat easy to replace.  May be difficult to find for a Sony though.  I would start there...


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This is the LED screen. &nbsp;Only LCD screen has inverter.
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This is the LED screen.  Only LCD screen has inverter.

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does it work ok on an external screen? &nbsp;then it can be the video connector - reseat it to test
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does it work ok on an external screen?  then it can be the video connector - reseat it to test

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Hi, I have reseated it 3 times. &nbsp;I even tried it with two good screen.s
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Hi, I have reseated it 3 times.  I even tried it with two good screen.s

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does it work on an external one? or not?
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Yes it works on external. &nbsp;
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Hi, Thanks for all your help. I came to conclusion it is the the bad motherboard. &nbsp;
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Hi, Thanks for all your help. I came to conclusion it is the the bad motherboard.  

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Hi, Thanks for your help . Enjoy the points.
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Hi, Thanks for your help . Enjoy the points.

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I have a Sony Viao VPS-C111FM Model Laptop with LED Screen. &nbsp;When turned on you can barely screen. &nbsp;In LCD screen I know either the inverter is bad or back light is bad. &nbsp;What could be wrong with the LED screen now. &nbsp;Is the cable that connects the motherboard is bad. &nbsp;Is there any setting in BIOS that says only work with external screen? a
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I have a Sony Viao VPS-C111FM Model Laptop with LED Screen.  When turned on you can barely screen.  In LCD screen I know either the inverter is bad or back light is bad.  What could be wrong with the LED screen now.  Is the cable that connects the motherboard is bad.  Is there any setting in BIOS that says only work with external screen? a

Sony Viao VPS-C111FM Model LED screen barely can see not bright

A monitor or a display is an electronic visual display for computers, usually comprised of the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used a cathode ray tube (CRT) about as deep as the screen size. They are connected to the computer via VGA, DVI, DisplayPort, Thunderbolt, LVDS or other proprietary connectors and signals.

Displays / Monitors

A laptop or notebook is a portable personal computer with a clamshell form factor, suitable for mobile use. Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, there is often no longer any difference. Laptops are commonly used in a variety of settings, such as at work, in education, and for personal multimedia. A laptop combines the components, inputs, outputs and capabilities of a desktop computer, including the display screen, speakers, a keyboard, and pointing devices (such as a touchpad or trackpad) into a single unit. The device can be powered either from a rechargeable battery or by mains electricity from an AC adapter.