Question about HP Pavilion ZT3000 Notebook

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My hp zt3000 goes to a blank screen after starup. All lights are on and then shutsdown. I changed the backlight inverter and reseated the memory. Please help.

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Posted on Jan 02, 2017

SOURCE: blank screen

Hi

Its inverter or mother board problem power which passes to backlight is cutting off because of over heart (over heart of some IC).

Thanks

Posted on Sep 16, 2008

pontelemon
  • 531 Answers

SOURCE: HP Pavilion dv1227US notebook PC Backlight Power Inverter

Take 2 bottom screws from LCD bezel. Pull front bezel off gently. Small board in the middle right under the LCD.
Enjoy.

Posted on Mar 19, 2009

  • 56 Answers

SOURCE: Hp dv1000 no backlight, repalced inverter, still no screen

plug in a monitor in the side of the laptop if it shows up then the lcd is bad. Also try and reset the memory by pulling it out and then put it back in if not in all the wall nothing will appear on the LCD.

Posted on Jan 27, 2010

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1 Answer

My lcd is hpl1908w its display goes of 5 minutes on first starup and when its displays goes off i on and off the monitor display comes for fews seconds and then goes off again lcd light is green but...


well if your lcd has no bulge capacitors test your tft lamp both top & down of the screen( particularly top) with spare tft lamp. or use another screen to test it. secondly, test the c5607 transistors in the inverter section but if you know how to use spare tft lamp very well , you will easily detect between your screen & the inverter

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If you have checked all functions as you described and a remote monitor, then the problem is the graphics card on the motherboard, in most cases the motherboard must be changed because the graphics card is built in.

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My samsung LE40R74BD set works fine for about 10 mins then screen goes blank (black) . It would appear there is no back lighting. I have visually checked the psu for blown capacitors but all seem to be...


This does not seem to be a power supply issue but rather an issue with the backlight inverter board. When the screen goes black, take a flash light and focus it on the screen from a close distance and several angles. See if you notice a very faint image. Try changing the channels to make it more noticeable. Try it and let me know

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Laptop display goes blank after a second, not lcd inverter


I have had a similar issue with an LCD monitor and the issue was not with the inverter itself but the backlights. They can go bad and short (which is where my issue was. Once they were removed the screen was working again (the lights needed replaced).
Hope this helps!

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Screen goes black but still can see the desktop??


Yes this is a back-light problem. The fault could be the inverter board which supplies high voltage to the CCFL lamp or it could be a faulty CCFL lamp, this lamp is a mini fluro tube.
For service, parts and DIY info check out LCD Parts - click on this link to their WEB site : -
www.lcdparts.net

Oct 12, 2009 | HP w2207 Monitor

1 Answer

Display problem


You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :- 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 or appear black. 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.

Jun 10, 2009 | HP Hewlett Packard Pavilion dv9750us PC...

1 Answer

HP DV1000/screen turns on then turns off.


You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :-
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 or appear black.
  • 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 16, 2009 | HP Pavilion dv1000 Notebook

2 Answers

I turn on my computer but the screen is still black


think you might have a failed screen inverter (FL inverter); this problem is very common with laptops. The inverter board acts as a power supply for the LCD screen backlight bulb, it converts low voltage DC power into high voltage AC. On most laptops the inverter board is located inside the display assembly below the LCD screen and you can get access to it if you remove the screen bezel (LCD mask). When the screen inverter goes bad the backlight will not turn on anymore or it turns on for a short time and then goes off, but you still can see a faint image on the screen and the external monitor works just fine. First of all I would make sure it’s not just a loose connection and reseat connectors on the inverter (it looks like you already done this part). Next, I would try replacing the inverter board. It might fix your problem with the backlight. It’s possible that you have a faulty cable, bad motherboard or even bad LCD screen, but I would try replacing the screen inverter first.

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1 Answer

Blank screen


Hi

Its inverter or mother board problem power which passes to backlight is cutting off because of over heart (over heart of some IC).

Thanks

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