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Sony vaio pcg 4a1l blank screen after replacing a new screen

Hi, I recently replaced the screen on my Sony Vaio pcg 4a1l because it was cracked. During the process, I disassembled the keyboard and the front cover under the keyboard (not knowing that all I had to disassemble was the screen portion only.) So I replaced the screen and connected all the wires to it and reassembled the laptop altogether. After everything was assembled, I tried to turn on the laptop, but the screen won't turn on. I noticed that everything else was running and the dvd-rom can open. I tried connect the laptop to an external moniter but it won't signal recognized it. Someone please help me with this problem.

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  • 27 Answers

Take it apart again, remove housings, disconnect cables, reconnect cables, and then power on. If that works then re-assemble

Posted on Oct 18, 2013

Testimonial: "Hi, I just tried that, but still no luck. :'("


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Posted on Jan 02, 2017

  • 87 Answers

SOURCE: How Replace CMOS Battery in Sony Vaio VGN-FS742 / PCG-7D2L?

Here is are disassemble instructions for you,

Good Luck

Posted on Jan 11, 2009

  • 1 Answer

SOURCE: I want to Down DRIVERS for Sony VAIO Version PCG-7L1M


Posted on Jul 22, 2009

  • 1 Answer

SOURCE: how can I change a internal hard drive at sony

change hard drive on sony pcg-7z2l
only covers on the back are battery and memory
No hard drive cover

Posted on Feb 24, 2010

  • 341 Answers

SOURCE: sony vaio pcg-3c1m does not start

recharge your battery or run the laptop while being connected to the AC adapter power

Posted on Mar 19, 2010

  • 117 Answers

SOURCE: My sony vaio PCG-71211L was

First of all PCG-71211L is not the model # of the VAIO computer, it is the hardware configuration code. Based on the hardware configuration code your model # must belong to VPCEB1 series computers.

As per Sony policy, if the parts are not customer replaceable, the information about the parts will not be published on their website.

I wold suggest that you call the Sony parts center at:
1-800-488-SONY (7669) and check for availability of the parts there.

If you get a positive response, it is good, otherwise let me know, I will search further for you and will get you the part number.


Posted on Dec 13, 2010

Testimonial: "Called sony and they want me to send them the laptop for repair which I cannot afford. I'm mechanically inclined and can do it with a little help!"

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1 Answer

How to replace Sony Vaio PCG-61A12L Screen


Almost all the Sony Vaio regular laptop screens are replaced the same way. The Model PCG-61A12L is one of the regular ones. I suggest using the replacement instruction at

Hope that helps.

Henry Ofor

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1 Answer

Pcg 4a1l

Did you go to this web page

If yes, have you tried the Option 1: AUTO DETECT (VAIO PCs ONLY)

What does this do?

This support option allows the support web site to determine your Sony VAIO computer model and forward you directly to your model support page.

After selecting this option for the first time you will be prompted to download a small program that will enable this feature.

The "Detect and Continue feature works on most Sony VAIO computers when using the Microsoft Internet Explorer browser.

That should help you

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