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I have a vaio PCG-61313L, i replaced the screen because it was broken, when i test the new screen, i got no backlight, i try to replace it with the old one but got the same problem, backlight was gone. please help.

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  • erickbaquira May 18, 2011

    i can't see any inverter on it, it's a LED LCD,


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1. First of all if your sony vaio is still under warranty better to bring to the store where you purchase it and ask for assistance. Most probably they will replace it with a new one or they will coordinate with sony to have it fix for free

2. Another option is to contact sony vaio tech support because they are the only one who can perform series of tests to isolate the problem and give you the right solution for your vaio

This is the link for sony vaio tech support contact details:

Hope this help you a bit. Have a great day

Posted on May 18, 2011

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The problem is not with the screen. If you turn on your laptop in a dark room and you put a flashlight on your screen, you will get a very faint display. The problem seems to lying with the inverter.

The inverter is a electrical device which 'backlits' the LCD and gives the display. Without the inverter and the bulbs it powers, the screen would be too faint to be seen.

To test if the inverter is defective, just turn on your laptop in a dark space, then put a flashlight on the screen to see if you have a fainted display. If you can see something, it is the inverter which is defective and should be replaced.

If you are handy, you can also remove the screen cover to see if there is a neon like light which lits up behind the LCD. If you can see the light, it means that the inverter is just working fine and that the is with the LCD itself.

i have a vaio PCG-61313L, i replaced the screen - jbertrand_ba.jpg
Picture of an inverter.

Replacing the inverter:

1. After removing the screen 'cover', locate a small circuit board (usually below the LCD). Unplug the electrical cables and replace.

In your case, as the LCD has been replaced, check if the cables are well connected to both ends of the inverter. If the cables are well connected, consider replacing the inverter.

Posted on May 17, 2011

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