Question about HP Pavilion dv4000 Notebook

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I have a HP laptop,when I turn it on,the power button light is on and flashing,the LCD is totally black,could you please tell me what causes the problem.

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This ram or processor problem replace one by one and then check ... thanks

Posted on Sep 14, 2010

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MY hp laptop screen stays black and my buttons are flashing


Hi,


This may cause by an electrical charge in the motherboard itself,Im not really sure how it affects the display of the computer.There's also a possibility that the problem is with the LCD cable or the LCD itself. Please follow this method since it usually fix such problem like that,


1.Removed the battery then unplugged the AC adapter


2.Press and hold the power button or the ON/OFF button for at least 30 seconds


3.Connect the power supply back to your computer then turn it back on.


4. Check if you will see any difference.


5. If nothing happens, try to press and hold Fn and F2 on the keyboard.


If nothing happens, there is a possibility that the problem is with the LCD or monitor itself, maybe it will need a replacement...


I hope this information will be helpful. Thank you for using FixYa...

Sep 25, 2011 | HP Computers & Internet

1 Answer

HP Pavillion DV9000 will not start. Before, I would press the power button and the lights would flash, once, then turn off immediately. Less than a second. By resetting the motherboard, I was able to...


Hi

Try to remove the battery, hold on power button for about 50-60seconds, then plug-in the charger and turn the laptop ON, see what happens.

Please tell us your results
Good Luck

May 15, 2011 | HP Pavilion dv9000z Notebook

1 Answer

Computer turns on, no video on lcd or external video. HP Mini 110


Hi,

Sorry to hear that. To tell you honestly, this sounds like a video card issue. But, of course I will not jump into a conclusion without doing some diagnostics. Kindly try doing a power drain which most of the time causes issues with the display. Follow the steps below please.
  1. Make sure the computer is off. If the indicator lights are still on, press and hold the power button down for about 5 seconds or so, until indicator lights goes off.
  2. Take the battery out of the computer. Do not forcibly take it out. Most laptops have latches to unlock the battery.
  3. If the ac adapter or the charger is plugged in the computer, unplug it.
  4. Without any power source, press and hold the power button down for about 15-30 seconds. This drains electrical static on the motherboard which, again, most of the time causes issue with the display.
  5. After 15-30 seconds, put the battery back in and plug the charge into the computer for sufficient power supply and turn the computer back on.
If the display comes back up, then good. However, if you still have a black screen on both the built-in and the external monitor then the problem is the video card. If you have no display on the built-in LCD screen but there is display on the external monitor then the problem is with the LCD itself or the inverter cable, a cable that connects the LCD to the motherboard. I hope this fixes the issue though.

Thank you for visiting FixYa! have a good one.

May 10, 2011 | HP Mini 110-1037NR Netbook

2 Answers

My hp laptop dv6305us screen is blank power light is on but screen is totally blank.


The DV6000 series of notebooks are known to have problematic motherboards. Try the below options:

1) Hold the power button down for 5 second and the machine should shutdown. Then power on again.

or

2) Flip the laptop over and switch the "lock" switch to "unlock". Then flip the release button to remove the battery for a few seconds. Put the battery back in and try to power the laptop on.

or

3) Power on the notebook like normal. Watch the Hard Drive activity light (the one that looks like 3 stacked plates), if the screen is blank and the activity light is solid or flashing, you know that the LCD screen is bad and needs to be replaced. If that light is not flashing then the problem is your motherboard and it needs to be replaced. Call HP and ask them if your model was part of a DV6000 series recall, if so your repair costs might be covered.

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Regards,
Jacob

Mar 05, 2011 | HP Pavilion dv6305us Notebook

2 Answers

All the lights turn on on the hp pavilion dv1000, but the screen remains black. Almost as if there was no power going to the screen. I have tried reseating the RAM and the HD. Problem still remains. ...


Hook a external monitor to the video output on the back of the laptop, if okay! there is a LCD problem with the laptop screen, causes! bad inverter board, or back light. If both show black! causes are Video Graphics Card that is part of the motherboard.

Jan 10, 2011 | HP Pavilion dv1000 Notebook

1 Answer

My laptop won't open, i pushed the power button and then the screen is plain black, but the power button is lit on, the wifi is lit on and the other lights are blinking


If the HP laptop appears to boot up and the hard disk LED flashes the the problem could be a back light fault. this can be caused be a faulty inverter or a faulty CCFL lamp. Please click on this link to determine the fault and fix :-
http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Dec 30, 2010 | HP Compaq Presario CQ61420us Notebook

1 Answer

Dell 1525 lights flash when power button is pushed but no


Even if the hard drive is bad you should still see the normal bios post screens and then an error message saying "no boot device found" or something similar. If you have a monitor in your home you should attach the vga cable from it onto the vga connection on that laptop. Then turn on the laptop and see if you get a picture on that monitor. If you do then either the laptop lcd inverter is bad or the lcd itself is bad. If you don't get a picture you may have to press a toggle button or buttons on the laptop to switch to the external lcd. Usually this is Fn plus another F button on the top.

Feb 07, 2010 | Dell Inspiron 1525 Notebook

3 Answers

I have a HPw1907 monitor and it will turn on for about 2 seconds, and it turns off. The CPU is fine, just a problem with the monitor. Any way to fix this?


We have the same model of monitor and had the same problem few days ago. The monitor just goes black/turns off. I noticed that the power button has a yellow blinking light and cannot be turn on/off again using the power button. The CPU is working fine also. When I turn off the avr, the power button's light turns blue for a few second and you can hear a click sound from the back of the lcd before it totally turns off. My lcd monitor is over a year old now and is 110v or 220v capable. Mine was originally in a 220v, i just put it in 110v and the monitor was fixed.. Hope this can somehow fix your problem.

Aug 02, 2009 | HP w1907 LCD Monitor

1 Answer

Hp L1502 LCD blank, LED still flashes


just check ur lcd display cable and try to clean and c it it will cme

May 29, 2009 | Samsung SyncMaster 910T 19" LCD Monitor

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