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FLICKERING AT THE BOTTOM OF LCD SCREEN

I notice the LCD of my Compaq Presario notebook have a small bar of greenish color that flickers on and off at fixed intervals. i notice it because the flickers happened at the Window Vista Taskbar (at the bottom of the screen) which make it very obvious. i only have the laptop for less than 4 mths. what could be the fault?

pls help. really need some advice here.

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1 Answer

I haveMy compaq presario CQ40 and my monitor screen got flicker always for past few days and more red horizantal lines @bottom of the screen, where i couldn't see the data,time,date... Plz help me...


This is usually a sign of either a bad LCD screen cable, a bad LCD screen, or a bad display adapter.
If you connect an external monitor & you get a picture without these red horizontal lines, then your display adapter is OK.
Diagnosing a bad LCD screen cable or a bad LCD screen requires that you disassemble the LCD screen panel, & swap them one at a time with a matching part. This way you can identify which part is causing the problem & replace it.

Sep 02, 2011 | Compaq Presario CQ40 Series Laptop Charger...

1 Answer

Hi..i am using compaq presario cq 40 and screen is flickering.i had it checked and they told me lcd is the problem but they didnt even bother to check.they just turned it on and they told me that i have to...


When it flickers, can you still see the text when the screen goes dark?
May have to use a bright flashlight set right on the display to see
the text on the screen beside where the light sits.
That will tell you if it's the backlight.

You can also look at a grazing angle into one of the edges to see if the
backlight is flickering when the display does.
When it's cold, does it start with a slight pinkish color? That can be
a sign of backlight going bad.
Anything interesting happen when you flex the cable by moving the screen?

I'm not saying it's impossible, but I've never seen software cause
consistent screen flicker. And if the vga port doesn't flicker, sw is
even less likely the problem.

If you bet the odds, you'd bet on a bad display cable.
Won't hurt to try replugging it.

If that doesn't help, then your monitor may be dying....

Jun 20, 2011 | Computers & Internet

1 Answer

I have Compaq presario CQ60 notebook pc.When the lid of screen is moved it starts flickering. What should I do ?


This is typically caused by a loose cable inside of your screen. I do not suggest tinkering with it as you could possibly damage it more. In case you're feeling brave, here's a guide on how to get to the LCD on your model of laptop:

http://www.insidemylaptop.com/remove-replace-damaged-lcd-screen-hp-g50-g60-g70-notebook/

Again, I don't recommend trying this unless you have some prior experience with this sort of thing. Take it into a certified technician or call Compaq (HP) @ 1-800-HP-INVENT

Good luck!

Mar 31, 2011 | Compaq Presario Notebook

1 Answer

My Compaq 14" laptop (LED


does it keep flickering? If so, there is a small circuit board in the top below the screen that can go bad, resulting in your screen eventually going dark---I had to use a flashlight to see anything. I would have it checked by a service tech soon.

Feb 14, 2011 | Compaq Presario CQ50-215NR Notebook

1 Answer

Laptop screen flickering CQ50-110US


unseat and reseat the LCD cable behind the LCD and also where it connects to the motherboard. If that doesn't solve it, then try another lcd cable. If that doesn't fix it then that means the LCD is bad and would need to be replaced.

Apr 19, 2010 | HP Compaq Presario CQ50-110US Laptop

1 Answer

My screen is bouncing around a lot. A lot of flickering


could be a ribbon cable to lcd or the inverter
both are cheap parts sold on ebay

Apr 04, 2010 | Compaq Presario Notebook

1 Answer

Compaq presario F700. Display screen is garbled and illegable most of the time. Occasionally it will come up perfectly normal and clear but majority of time its a bunch of multi colored lines flickering....


Since the problem you describe is intermittent I would first suspect a loose or shorted electrical connection. To check this you will need to take the computer apart. Step by step photos of this procedure are at http://www.insidemylaptop.com/disassemble-compaq-presario-f700-notebook/ .
Once you have access to the lcd cable you can check its connection and the condition of the cable itself. If the connection is secure and the cable looks good you probably have a bad lcd. 

Nov 28, 2009 | HP Compaq Presario F500 F700 and G6000...

1 Answer

FLICKERING AT THE BOTTOM OF LCD SCREEN


On a 3 month old laptop don't even bother finding out why just get it back to get fixed under warranty. The flickering can be from several things but unless it has been damaged there is no way you should have any problems even small ones with that new a laptop.

The flickering can be a bad connector or power problem which you might see on a 3-5 year old tired laptop but definitely not acceptable on a new one.

Sep 26, 2009 | Gateway NX560X Notebook

2 Answers

Black screen/flickering


try using an external monitor, if the problem doesn't happen on the external monitor then definitely the problem is with the LCD screen. Possible replacement required for the LCD panel.

Jul 13, 2009 | Compaq Presario CQ50-215NR Notebook

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