TechSpot

Dell Latitude D-620 LCD is flickering and is pink in color

By Joester2007
Jan 3, 2010
  1. My lcd was flickering and had a pink hue to it and out of focus. I ordered an new lcd and installed it and it didn't change a thing. Does anyone know what it could be?

    Thanks in advance.
     
  2. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

    loose or damaged cable, chip, motherboard....

    overheating system......

    could be a variety of things.
     
  3. Joester2007

    Joester2007 TS Rookie Topic Starter

    Thanks tedster for the info. I know when it first started I could tap on the back of the lid or the back of the lcd and it would come in and out. A couple times when I closed the lid and opened it again it work for awhile. Then it finally stopped working all together. So from what your telling me my next step would be to replace the cable. Is this correct?
     
  4. raybay

    raybay TS Evangelist Posts: 10,716   +6

    Download the video driver, then go to device manager to suspend or remove the old driver, and install the new one... Anything better.
    If not, you likely have a defective video graphics inverter or backlight. Not difficult to fix but tedious and time consuming... First, see if you can find the inverter and backlight cheaply on eBay or other supply source. Then look at the dell site for drawings and images of what is needed to remove the old one.
    The units just plug in. But there are many screws of different sizes which you must remove from the bottom of the computer, then remove the keyboard, then remove the screw covers... and there can be as many as 16 to 24 screws... it is important to draw yourself a "map" as to where each screw size goes when you reinstall everything.
    The most difficult part is removing the screw covers so they can be replaced in a way that is attractive.... then getting screw cover replacements and the correct glue or adhesive.
     
  5. Joester2007

    Joester2007 TS Rookie Topic Starter

    When it went bad it was working on and off at first by opening and closing the lid and by taping on the back of the lcd lid. Doing this it work for awhile. After 3-4 times of this it finally stopped and couldn't get the picture to come back any longer. So I'm thinking it must be a short somewhere. Looks like I wasted my money on a new lcd huh.

    I bought a new lcd cable I'll install it when it arrives and will report when I'm finished. As for the
    back light it's a new lcd it should be fine, I hope. The inverter came with the lcd if thats the one your talking about. So I'll try a new cable and see if that fixes it.
     
  6. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

    I would say your LCD cable is shorting out.
     
  7. raybay

    raybay TS Evangelist Posts: 10,716   +6

    You never know. You could be right on your particular computer. I will put my money on the other.
    But we would all appreciate your replies as you get to a solution... we hope to learn from you.
     
  8. Joester2007

    Joester2007 TS Rookie Topic Starter

    Hey all, Well I bought and installed a new cable and still have the same problem. I contacted the seller of the lcd and they said it must be a defective inverter then but they don't sell them and offered to refund my money minus shipping and if it test out to be fine then there will be a 25% restocking fee. I would like to know how to test it myself. The only way I can think of is to install it into a working dell d620 laptop. If I can't at this point I would have to take there word for it that there is nothing wrong with it. I have ordered an inverter it was only $7 and if that turns out not to be it then I guess I have no chose but to take the loss and round file the laptop. I'll let you know what happens. Thanks for your time and insight.
     
  9. hhhh0530

    hhhh0530 TS Rookie Posts: 30

    lcd

    well i know for a 630 a refurbished screen is around 175
     
  10. hhhh0530

    hhhh0530 TS Rookie Posts: 30

    most of the time there out of stock
     
  11. Joester2007

    Joester2007 TS Rookie Topic Starter

    I don't know were your getting your lcd's but I bought a new one not refurbished for my wife's 620 with inverter for 78. They average from 70 to 120 for a new one.

    I don't know if I mentioned it, but this 620's video works great when connected to an external lcd monitor.
     
     
  12. Joester2007

    Joester2007 TS Rookie Topic Starter

    Well people a new inverter did not fix the problem. I did a little more research and found out that this model dell with the nvidia chip set has a none issue with that chip going out. The motherboard has to be replaced or replace the chip. Motherboard on eBay is around $100. I've already put to much into this thing trying to find the problem I refuse to put anymore into it. So It's time to part it out on eBay and see if I can recoup some of my money. Any one looking for a brand new lcd? This is a great forum with people willing to help, Thanks guys
     
  13. billyfranck

    billyfranck TS Rookie

    I need help to unlock a dell latitude d620
    Service Tag HN4THC1
    Please help me
     
  14. billyfranck

    billyfranck TS Rookie

    I need a master password to dell latitude d620
    Service Tag HN4THC1
    Please help me
     
  15. Archean

    Archean TechSpot Paladin Posts: 6,056   +76

    I think it is advisable that you may contact dell's technical support people; I am sure that will be much more fruitful with regard to solution of your problem.
     
  16. raybay

    raybay TS Evangelist Posts: 10,716   +6

    Techspot policy forbids our giving assistance with password issues.
     
  17. keithdot

    keithdot TS Rookie

    LCD problem.....

    When a flourescent or cold cathode lamp is at the end of its life, most will take on a pink hue. Change the backlamp....
     
Topic Status:
Not open for further replies.


Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...


Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.