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Laptop gone crazy

I have a hp zd 8000 laptop that display on the thing is yacked,and same when connected to outside monitor

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Sounds like a video card problem, take it to a tech store to get it evaluated, there is not much else I can say

Posted on Dec 23, 2008

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I have a hp laptop. was on line and screen went black. and will not show again. it strats up sounds but black screen.what do i do


1) Do you have a VGA monitor that you can use for an external monitor?
{VGA monitor is also referred to as a CRT monitor. Looks like a small TV}

The back of the laptop, or side, has a VGA port. The VGA monitor is plugged into it.
{Laptop off}
Then the VGA monitor is turned on, and allowed to 'come to life'.

Now turn on the laptop. Press the Fn key down on the keyboard, and hold it down.
Now press the Monitor toggle over key.
Since you did not state the HP laptop Model Name, and Model Number, I can only give you generic guidance on this.

The monitor toggle over key has a monitor screen symbol on it. It will be one of the F keys.

(It's an External Monitor toggle key.
Press it one time and the display toggles over to an external monitor.
Press it again, and both the laptop LCD screen, and the external monitor have a display on them.
Press it once more, and the display goes back to the laptop's LCD screen )

If display shows up on the external monitor, you have a problem with the display of the laptop.

Primer:
An LCD screen cannot produce enough light by itself. It needs an additional light source.
A Backlight is used as an additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp {Bulb}
Similar to the fluorescent lighting used in homes and businesses, but on a MUCH smaller scale.

{Average Backlight is 3 to 5 inches long, and half the diameter of a No.2 pencil.
The Backlight is located on one edge of the LCD screen}

An Inverter is used to provide power for the LCD screen, and the Backlight.

90 percent of the time the problem is the Inverter.

Inverters are relatively cheap, and if I knew the Model Name, and Model Number of your HP laptop, I could give you a link to HP Support where you could download the Service Manual for free.

This way you would have a manual to show, and detail how to replace the Inverter, and I could guide you.

I could also give links for your perusal for Inverters.

There is one more thing however.

HP Pavilion DV2000, DV6000, and DV9000 series laptops, have a graphics chip overheating problem.
The laptop comes on, the blue indicator LED lights light up, but the LCD screen is black.

This video explains why, shows a solution to fixing the problem, and details out a lot more than I am privileged to state here,

http://www.youtube.com/watch?v=bnkQNmKauEc

Have further questions regarding any of the above, please state in a Comment.
(Believe upper right of your page)

Regards,
joecoolvette

Dec 02, 2010 | PC Desktops

1 Answer

Trying to connect hp 8000 to my lAPTOP MAC???????


http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=219&lc=en&dlc=en&cc=us&product=3762364&lang=en
download and install this software after that just hook the printer ..I assumed this is a office-jet pro 8000

Mar 09, 2010 | PC Desktops

1 Answer

Toshiba laptop satelite a135-s2386. I went to turn on computer and there is power but the screen is black. Thanks!


connect an external monitor on the unit and press the key combination to get the video on an  external monitor this is different on some laptops on HP dv 6000 for example it is FN F4 if external monitor work the problem is with your laptop display if the external monitor doesn't work its probebly your systemboard als check your memory.

May 04, 2009 | PC Desktops

2 Answers

I have a HP Pavilion laptop ze4900. Every time I move th screen, the display either goes off completely, or it goes vey dim and I cannot read anything from it. The only thing I can do to get a display


You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

May 03, 2009 | PC Desktops

3 Answers

LAPTOP POWERS EVERYTHING UP EXCEPT THE SCREEN


Could be actually your RAM connection is not getting a good contact. Shut it down completely, take out the battery and disconnect any other power source to it.

Then clean your memory edge connector using soft eraser. And take back again. Power it up.

If this doesn't help, try this, if you can somehow flash in to a secondary external monitor do it, if this work you have problem with the laptop monitor. Could be grip problem or cabling problem. In that case consider taking it in a repair shop.

Suspected defective RAm module or monitor screen defective

Hope I give you some helpful input.

Apr 24, 2009 | PC Desktops

1 Answer

Screen does not work any more. Got a new LCD but still no picture.


you said that you want a display card. first no extra card can be added to the laptop. that is not possible. and second if your lcd is not working then the inverter card might be gone. it is a small card which converts dc to high voltage ac so that the screen can be back lit and run. if this has gone it can be replaced and you can again restore ur screen.

you can check the working of the graphic card of you laptop by connecting external monitor. if that also not working then you need to replace ur motherboard. these are the solutions.

so in order to make sure your motherboard is ok. just connect an external monitor. and you cannot upgrade your graphic card as it is final in laptop.no upgrades for that.

Apr 19, 2009 | PC Desktops

1 Answer

Ok so my hp laptop computer will power up but my screen will not come on.


The first thing I would check before anything else is that your AC adapter (that brick on the floor) has an input of 110 v, 115 v, or 120 v. If not, then that is probably your problem.

If you have the correct AC adapter, then next thing I would try is hooking up an external monitor to the laptop and using the toggle display button (usually an Fn + Function key combination; for example, on my laptop it is Fn + F5) to see if you get a picture on the external display. Also, shine a flashlight at the display (at a 45 degree angle to it) when you try and turn on the computer and see if you can faintly see a picture.

Nov 28, 2008 | HP PC Desktops

1 Answer

Brand new Toshiba Satellite L305D-S5868 laptop display screen has gone black, even though the computer is on.


Since your laptop is brand new , you may not be familure with it's function keys , FN

Sometimes the users accidentaly presses the FN and the F5 monitor function key at the same time.
which effectively turns the notebooks display off.

D in the image below is the FN function key
and the monitor function key could be F5 , it will have a little monitor symbol on it.


470d8e8.jpg

When they are pressed together it will turn the notebooks display off and enable any VGA monitor connected to it's VGA ports. when pressed again , they will turn of the VGA port and turn on the notebooks display.


Thank you for using FixYa!




Az.

Sep 18, 2008 | PC Desktops

1 Answer

Laptop comes on but monitor remains black


Hello,

IT could be one of two things. First make sure that you have the laptop set to display on the LCD. Most laptops will have a Function key labeled by Fn then you will need to look at the function keys at the top F1-F12 and find the one that either says CRT/LCD or has a picture of a screen or monitor. Then, after you have found that key, you will need to press and hold the Fn key and tap the appropriate function key, this will alternate between the LCD (laptop) and CRT (monitor). If you have trouble finding the correct key combination for switching displays should be listed in the manual.

If that doesn't correct it, then I would try locating a desktop CRT and connecting it to the monitor connection on the rear of the laptop and again pressing the keys to switch between CRT/LCD. If it shows on the CRT then I would say that the LCD on the laptop is bad.

Thanks

Aug 28, 2008 | PC Desktops

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