Question about HP Compaq nx7010 Notebook

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Screen/ video display is dark.

The display does not light up, and it started out that it would c ome back on if you wiggle the switch that shuts off the monitor when you close the laptop. Now it is dark all the time, but I can hook it up to an external monitor and it runs fine. The display is working, (you can see the programs in the dark of the screen. It makes sense to me that it would be the switch, but I found a driver that supposedly would bypass the switch, it didn't work. Any thoughts? Thank you, Jeff

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In windows, you can sometimes disable the lid switch by going to control panel (obviously you'll need an external monitor) and into power options.. where there's a setting for "when I close the lid" and set it to "do nothing"

As for that flaky switch, all I did was follow the instructions from my manufacturer to pry the speaker panel off the keyboard *gently* find the wires, from the microswitch (my computer is an HP and it's a teensy two wire connector attached to the power button printed circuit board.)

I simply unplugged it, rendering the lid switch, inoperable.

When the switch is unplugged, it doesn't interfere with normal operation. IF that switch is causing your issues, disconnecting it should make your computer operate normally. It simply won't do anything when you close the lid.. you'll have to power it down manually.

Posted on Mar 19, 2008

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Sounds like a backlight or inverter problem or both. Most likely the backlight in the display panel. Unless you know how to open your laptop and if needed the and the display panel I would take it in to a professional. If you are able to do it yourself you can make sure that everything is plugged in properly. And test the components inside. You can replace these parts which are not very expensive. But if you have not be inside a laptop I would take it into a local shop for repair.

Posted on Sep 13, 2007

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1 Answer

Icons wiggle


Your computer screen or monitor may have wiggling images when it is too close to electronic interference, such as a power supply, cell phone, non-shielded speakers, a fan or electric motor.

Here's some tricks I would try...
1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or orange or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your display on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.

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Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

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Look at the LCD screen very closely and check if you can see a faint image on the screen. It's possible that the LCD lid close switch stuck in the "closed" position and the back-light stays off even when you open the LCD screen or turn on the laptop. The switch turns off the back-light when you close the LCD display to save the laptop battery power.

If no luck, try to remove battery and drain the power, then replace battery and turn on.

If that didn't fix it then there are 3 things that could have gone wrong:

1. Video cable connection from inverter to LCD got loose. To check this, follow instructions from step 3 on how to open the LCD and check if cable is fitted properly.

2. The video inverter is faulty
The screen inverter failure is very similar to the back-light lamp failure. In both cases the screen gets very dark and the image on the screen becomes very faint, barely visible under a bright light. If it's still under warranty, take it for a replacement. You can replace this otherwise - you can find the inverter under the screen, follow the procedure described at point 3 to open up the screen.

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1 Answer

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If this information is succesfull, then please rate!!

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