Comments on: How to remove LCD screen and inverter board from Sony Vaio VGN-SZ645 display

By: Laptop Tech

Laptop Tech — Wed, 08 Feb 2012 22:21:22 +0000

@ Jeffery,

is it possible to clean the inside of the plastic cover on the veiw screen?

I don’t understand your question. Not sure what you are talking about.

By: Jeffrey

Jeffrey — Sun, 05 Feb 2012 14:25:47 +0000

is it possible to clean the inside of the plastic cover on the veiw screen?
Sony Vaio VGNFE670G

By: RT

RT — Fri, 21 Oct 2011 06:11:26 +0000

Thanks so much for this! I have a VGN-NW180J (PCG-7171L). The screen is extremely dim and cannot be seen under normal circumstances. However if I shine a flashlight on the screen I can make out what is on it. So I am assuming it is either the inverter or the panel (its not the video card because an external monitor works just fine).

Can you please explain how I can test the inverter? I read online that you can test the output from the inverter to see if it is 6v. Is this indeed a valid test? Is it easy to know which two pins for positive and negative to connect to my volt meter?

Also I was told that if I do not have 6v out of the inverter, I should check the input to the inverter to see if it is 19v. Again, is this true? And if so, which pins on the input are for the positive/negative that I should connect my meter to?

I am not handy at all so quite apprehensive about taking about the screen. But the repair costs will be more than what the laptop is worth if I send it out, so I’m going to give it a try.

Any tips are greatly appreciated. Thanks again!

By: Revit

Revit — Mon, 17 Oct 2011 19:45:09 +0000

Can you tell me if the graphics is in the motherboard or is a separate card? vgn sz 370p

Thanks

By: yukiri

yukiri — Fri, 30 Sep 2011 22:32:00 +0000

@Madmax, if you receive this, I had the same issue and my problem was the screen was receiving too much pressure from the back lid. I simply took the LCD screen out and popped it back in and it’s working beautifully. Hope this works, and best of luck with your hard drive. I don’t presently have that problem but I hope you are able to resolve that.

By: madmax

madmax — Wed, 24 Aug 2011 13:18:25 +0000

i have a sony vaio laptop model PCG 392L it has vista ultimate OS system wich loads and searches fine and shuts down normally.the problem is that alot of green fluid that resembles ink is coming out of the area of the hard drive cover door.and the screen is mostly clear on first vaio screen with some colored verticle lines.then on second screen as it loads i get red and brown blocks horisontally across the screen then on desktop i get very thin blue and green horiziontal lines making it hard to see desk top icons.have you ever seen this before.i have turned on and shut down normally many times but each and every time the screens are just like ive described.any help would be very welcome.ty

By: Lauren

Lauren — Thu, 04 Aug 2011 03:19:10 +0000

Hi,

Thank you for these instructions. After I was finally able to remove the bezel from my VPC-EB33, I saw that the LCD screen was glued to the bezel. What can I do in this case?

Thanks in advance for your response!

By: Laptop Tech

Laptop Tech — Sun, 29 May 2011 18:04:55 +0000

@ traumaut,

I don’t think there is an inverter, or atleast I do not see cables running underneath the screen like yours. It looks like the screen and inverter are all one piece attached to only one cable behind the screen, which I’m not even sure is detachable. Do you know how I should treat this?

Apparently, your laptop has a LED-backlit LCD screen which doesn’t require the inverter board. The video cable connected directly to the screen.
In order to replace the screen, you simply unplug the video cable from the screen and replace it with a new one.
Take a look at this guide as an example. It shows how to unplug the video cable from a LED-backlit LCD screen.
You can find a new replacement screen if you google the model number from the original screen.

The screen is really dim, and plugged into an external monitor works well.

It’s hard to tell what is wrong, probably just a failed screen.

By: traumaut

traumaut — Sun, 29 May 2011 16:48:03 +0000

Thanks for these great instructions. Got the screen on my SZ450N off in 10 minutes. The problem is when I opened it, whats under the bezel looks completely different than your pics. I don’t think there is an inverter, or atleast I do not see cables running underneath the screen like yours. It looks like the screen and inverter are all one piece attached to only one cable behind the screen, which I’m not even sure is detachable. Do you know how I should treat this? The screen is really dim, and plugged into an external monitor works well.

By: Laptop Tech

Laptop Tech — Thu, 14 Apr 2011 05:05:37 +0000

99leesea,

Could you tell me how I’d identify the video cable when i’ve removed the keyboard ? (sorry for my incompetence).

Follow the harness which is coming from the display panel. The display harness routed though the left hinges.
Locate the harness and find where it’s connected to the motherboard.
It’s possible you’ll have to remove the top cover. I cannot tell for sure because I don’t have this laptop in front of me.