Question about HP Pavilion ze4935wm PC Notebook

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Screen stays black when I turn it on

The screen on my HP Pavilion ze4935wm stay black after I turn it on. The indicator lights come on but the screen is blact except for a very faint HP logo.

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  • HP Master
  • 630 Answers

Hi,
My point of view RAM section direct connect to display so first you check RAM.Then check processor Fan proper working or not. and finally power connection in screen.
Thanks..

Posted on May 08, 2013

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6ya6ya
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Posted on Jan 02, 2017

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  • 359 Answers

SOURCE: Why did my HP Pavilion ze2000 screen go black?

john79:

I know that you had a chat about this matter, and I hope that your issue was solved. However, I had made a note of it when I saw the chat go through. I was unable to help at that time, but remembered having seen something of this nature and wanted to follow through on it.

Although the ze2000 is not listed, other 2000 models are listed in the following link as defective - and recognized as such by HP - with this very specific defect. (Please see http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=en&dlc=en&cc=us&product=18703&docname=c01087194.)

Again, if your issue has already been solved, congratulations. Otherwise, I hope that the information provided here will be of use to you, either in fixing the equipment problem yourself (perhaps with a BIOS update) or by convincing HP to do something about it. At least you would be armed with good solid documentation of their recognized issue!

If this information assists you in resolving the problem, please take a moment to rate the solution at a "FixYa" level. If you do not feel that you can rate at a "FixYa", please post back with more information regarding what has occurred subsequently and/or more details regarding the situation, and I will gladly help you until we have reached a definitive solution. Thank you for using and rating FixYa!

Posted on Sep 26, 2008

SYSTEM ONE
  • 85 Answers

SOURCE: Hp Pavilion dv1000 Black screen

It is either the inverter board or the bulb

If it looks pink in color than it is the bulb and that can be quite the intensive project to replace

If it is the inverter board than that is not so bad and you can pick up an inverter board on eBay usually for around $10 to $20 and that usually installs right under the LCD screen (usually screwed to the LCD screen)

The inverter board is what powers the light bulb the data cable is totally separate function.
If you can see data on the screen with a flashlight but there is absolutely no light coming from the screen at all ever than it is probably just the inverter board

But there is a possibility that you could order the inverter board and have it turn out to be the bulb and if that is the case then unless you are very comfortable taking apart laptops then maybe a new screen would be best since you practically have to take apart the LCD to change the bulb.

But screen cost around 100 to 150 on eBay so if you decide to do that then might as well try for a deal like this: (I just spotted this on eBay and it is for entire new top half of laptop with glossy screen and inverter board wire harness and all for the same price or less than just the screen http://cgi.ebay.com/HP-dv1000-Pavilion-14-1-BrightView-Glossy-LCD-screen_W0QQitemZ310102538774QQihZ021QQcategoryZ31569QQssPageNameZWD1VQQrdZ1QQcmdZViewItem#ebayphotohosting

That is guaranteed to solve your problem for sure.

Posted on Nov 25, 2008

  • 2 Answers

SOURCE: WONT BOOT BLACK SCREEN

this is a easy one plug up your unit take out ur battery for 30 sec while holding do the power button hit the power button once again and it should come on and if it dont the great things is there a recall on those pc call hp they will send u a new pc free of charge

Posted on May 22, 2009

fullyfuntime
  • 33 Answers

SOURCE: Screen stays black

There is few reason. Either your one of RAM is defective. Try both memory one by one. Even though if U don't see screen than its time to change motherboard.

Posted on Jul 22, 2009

bhagyavichar
  • 414 Answers

SOURCE: laptop turns on but screen stays black

probably itz either minor case of software corruption/improper ground/cpu fan..
or major case of faulty or defective main board/ram/addon/daughter cards..

..plz do check the following as in order:..
the Hardware part:..
1)a) in power-on mode, open/unplug the data/vga cable of the monitor from cabinet..see if raster or 'osd' is appearing on the monitor screen..if so monitor is ok..else replace the monitor and see..[not applicable in case of laptop]..
b) in case of laptop try to get output from external display unit/monitor using vga port..if there's proper display in there..the problem is probably with either the 'lcd' or 'ccfl' or 'inverter circuit'..

2) if u hv a graphics card, replace with a standby or onboard and see..[not applicable in case of laptop]..

3) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..

4) see if the ram(s) is loose/faulty..open clean/remove carbon & or oxide formed on the teeth with an eraser n resit it..or replace with a standby n see..

5) a) see if ur hdd is noisy or emitting any 'ticking' noise (like 'tuk tuk' or 'kirr kirr')..
b) or if the system is not supporting either the newly installed device or itz software/driver /firmware
if so, u need either a fresh os installation or ur hdd is likely to b replaced..

6) remove/clean dust neatly..dust is non-uniform in nature n may cause jam/short circuitry/excess resistance n many more..resulting an increase in heat..

7) open the CPU Heat-Sink with fan out of the socket..put some "Heat Sink Compound" (available in local electronics chip level spare market)between the cpu/processor and the CPU Heat Sink *** fan..resit/fit it tightly in position..

8) on main/mother board..see with a debug card for mb error..may b short..look for defective capacitors(espabove1000mfd)/mosfets..go through the mb's south bridge n the circuit lie around atx connector..the crystal clock generator (if cpu isn't heating up)..

9) [in case of desktop] the smps itself may b defective/faulty..check the outputs of smps viz. 0v (black~ground); +12v(yellow); +5v (red, green~ps-on, violet~pg& grey~sb); -12v (blue);-5v(white); +3.3v(orange)..the 'oscillator and error amplifier ic',or pwm switching regulator circuit..look for defective protector-transformer/resistance (esp 4.7k)/mosfet..
check the battery n adapter [main power], in case of laptops..

for any further assistance u may plz leave comment and or testimonials at any point of time, so that i/we can help or u think it to b helpful..

if u r not a professional, always better to seek advise from ur system admin/vendor....

Posted on Nov 23, 2009

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