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In this guide I explain how to remove and replace the LCD screen in a Dell Latitude D620 laptop.
The LCD screen removal steps will be very similar for many other Dell laptop. If this guide works for your laptop, please mention the model number in comments after the post.
If you need a new LCD screen or inverter for your Dell Latitude D620 laptop, you can find it here for about $70-80.
STEP 1.
There are six screw seals on the LCD screen bezel. Remove all six seals and screws found under them.
You can remove the screw seal with a sharp object or small flat head screwdriver. The seal bottom is sticky. Glue all screw seals somewhere on the screen bezel so they don’t get lost.
STEP 2.
Start separating the screen bezel from display cover with your fingers.
STEP 3.
Remove the screen bezel.
STEP 4.
Remove six screws securing the LCD screen mounting brackets to the display cover.
STEP 5.
Separate the LCD screen assembly from the display cover and place face down on the keyboard.
STEP 6.
Now you can access the back side of the LCD screen and video cable.
The video cable has two connectors. One of them is connected to the inverter board and another one to the LCD screen.
STEP 7.
Disconnect the small connector from the inverter board.
STEP 8.
Disconnect another connector from the LCD screen.
STEP 9.
Remove the LCD screen assembly from the laptop.
STEP 10.
If you are replacing the LCD screen, you’ll have to transfer both mounting brackets to the new screen. Each bracket is secured by a few screws.
In Dell laptops the inverter board is attached to the bottom of the LCD screen.
Even though it looks like the inverter board is a part of the LCD screen, it’s possible to remove the inverter and replace it separately.
In one of the previous posts I explain how to remove and replace the keyboard in a Dell Latitude D620 laptop.
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November 8th, 2009 at 12:43 am
[...] one of the following posts I explain how to remove and replace the LCD screen in a Dell Latitude D620 [...]
November 26th, 2009 at 6:05 am
i have dell latitude D620 laptop and have problem with the display. the lcd is ok and when turn on , it will flick and i can not see anything. or a blue screen will display.
” hardware malfunction
call your hardware vendor for support
NMI : parity check / memory parity error
the system has halted
then i sent to shop , they told it is chipset problem and cannot be fixed
help me out , i kind of broke and cannot get new one …at least repair fix should do .
November 27th, 2009 at 10:32 pm
sam,
I guess it means you have a problem with the motherboard.
It cannot be fixed without replacing the motherboard.
December 1st, 2009 at 10:31 am
Thanks, I followed your instructions and it worked like a charm!
Turned two dead 620’s in to one very live one
December 19th, 2009 at 10:20 am
This instruction works for my Dell Vostro 1400 too.
Thank you very much..
January 5th, 2010 at 12:39 pm
Hello, This procedure is similar for a Dell Latitude D830 ? Regards.
January 5th, 2010 at 1:03 pm
1xtra,
This procedure is similar for most Dell laptops.
January 17th, 2010 at 7:31 am
Hello:
Really appreciated your instructions on the removal of the LCD Screen on a Dell 620 laptop.
I am attempting to replace the inverter board (only) on my 620 but am not familiar on just how to do it for fear of messing things up. I followed your instructions and photos and proceeded with the sequence down to where I now see the inverter board but do not know how to remove it properly. There are wire connections on both ends and I cannot determine how to release them from their sockets.You state “Even though it looks like the inverter board is a part of the LCD screen, it is possible to remove the inverter board and replace it separately”. As stated, I am afraid to start pulling on the connectors to try to remove it so would like to know if you could furnish me with detailed instructions
and /or pictures on how to go about it properly. Sincere thanks: Richard
January 18th, 2010 at 6:38 am
Richard Metzger,
Take a look at this guide for a Dell Inspiron 6000 laptop.
http://www.insidemylaptop.com/replace-damaged-lcd-screen-in-dell-inspiron-6000-laptop/
I’m explaining how to remove the inverter board at the end of the guide. I think it could be similar to your laptop.
January 20th, 2010 at 10:43 pm
I see other posts regarding a ccfl lamp being the cause of the “dark screen”. This post does not mention anything about a lamp, only an inverter. I dropped mine today and the machine is working and displays but with no backlight. Do you think this is an inverter or a bulb? Thanks so much for sharing this info for tech wanna be’s like me.
January 21st, 2010 at 4:06 pm
Mip,
If the backlight stopped working after you dropped the laptop, most likely you damaged the lamp.
Also, it’s possible that one of the cables got disconnected from the inverter board and connecting them back fix the problem, but it’s not very likely.
January 30th, 2010 at 7:18 pm
Hi, I have a bit of a strange problem: My LCD (D620) almost always doesn’t work; so I have it hooked up to an external monitor. However, every so often, when the laptop shifts slightly, the LCD (again, the one removed in this tutorial) flickers on briefly- for at most 10 seconds, usually 1 second or less. I removed the LCD as per your instructions, but I can’t see any unusual crimps/bad connections. (and putting it back in did not clear it up.) Do you have any suggestions?
Note: I have been unable to reliably reproduce the conditions under which the LCD flickers on.
February 3rd, 2010 at 11:51 pm
OK I’m wondering if I have a inverter problem.
My back-light doesn’t come on…
You can see it boot, see the text FAINTLY and when my background pops up you can see that cause it bright green, but its all FAINT is it the actual back-light or the inverter i need to replace?
February 7th, 2010 at 8:46 pm
L T,
You cannot tell without testing the laptop with another known good inverter board or backlight lamp. Either one can cause this problem.
If you have to guess, try replacing the inverter board first.