i have an LG RD510 and when i was dissembling ,i remove “4″ (the FL inverter board from the CCFL (backlight bulb)) while the laptop is working and the screen is on ,i return it to his normal place but the screen wont work

Why did you disassemble the laptop? What was the problem?
Did you disconnect the inverter while the laptop was running?

its a dell studio 1537 laptop
how shoul i proceed next with my laptop for this problem of screen jumping

First, check your laptop with an external monitor. Make sure the external video works properly.
If the laptop image jumping, the problem could be with one of the following:
1. Bad connection between the video cable and LCD screen or motherboard.
2. Failed video cable.
3. Failed LCD screen.
I cannot tell which one is causing the problem without testing the laptop with spare parts.
Try reseating the video cable connectors first. If it doesn’t help, most likely this is LCD screen problem. If replacing the LCD screen doesn’t help, try replacing the video cable.

my laptop monitor display screen problem is like this!! help!! below is the picture. there’s a black panel on the right screen and multiple image below? how to resolve this probelm?! anyone help me! im using LG notebook X130 model.

http://www.flickr.com/photos/7…../lightbox/

When you turn on the laptop, there should be LG logo before Windows starts loading.
Is this logo shifted too or it appears correctly, right in the middle of the screen?

I have a HP compaq nc6720.

Laptop turns on, sounds okay, desktop opening, so motherboard works fine, i hear the every sound.

But monitor does not work, no display, no reactions, no any light on it. Looks like there is no any electricity or no connection from motherboard.

No video, no light on the screen at all? This could be the video cable related issue.
1. Test your laptop with an external monitor and confirm that external image works good.
2. Check connection between the video cable and motherboard. It’s possible the cable just got disconnected.

http://www.flickr.com/photos/7...../lightbox/

I have a HP compaq nc6720.

Laptop turns on, sounds okay, desktop opening, so motherboard works fine, i hear the every sound.

But monitor does not work, no display, no reactions, no any light on it. Looks like there is no any electricity or no connection from motherboard.

It has began since i tried to input another adapter before 3 days.

i need your help immediately, thanks so much..

First thought was that the inverter is dead, but can’t be sure, because input voltages to the board are 5v or less (6 pin connector)
Could anyone give any hints about how much input voltages should be? So is problem with inverter or somewhere before it.

New inverters are not expensive. Just buy a replacement inverter and test the laptop. That’s the best way to troubleshoot this kind of failures.