Question about HP Pavilion dv9000z Notebook

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Laptop does not power up

I just install a new screen and all was well and working once I connected everything. I had to replace a hinge. So I removed the keyboard bezel and unscrewed the hinge cover and put the new hinge in place. Now that I have it all back together, the power light comes on but the computer does not start up. Does the inverter have anything to do with the machine powering up ?

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Maybe you accidentally unplugged power wiring for your laptop when you are trying to replace a hinge.

Posted on Sep 21, 2008


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Replace ribbon cable going lcd compaq presario screen

Please replace it with a brand new flex cable. Please post the "4 tiles miniature screen".

Feb 12, 2014 | Computers & Internet


How to Install Compaq Laptop Keyboard

Compaq laptop keyboards have a variety of sizes and configurations to fit the design of the laptop itself like smaller laptops or larger laptops with full-size keys. You might now find that the keyboard or keypad exhibits problems such as sticking keys or general unresponsiveness from your owning Compaq Presario laptop because of several years'using. Besides, you have made sure that your old keyboad is clean but it still doesn't work well. Then you have to install a new one. So how to do it? Don't worry, you can DIY your Compaq new keyboard via this guide.
Step1. Exit Windows and turn off your computer.
Step2. Unplug the power cord and modem and network cables.
Step3. Place your laptop on a clean and disconnect the old keyboard. Open your laptop screen as far as you can.
If you are installing a USB keyboard, connect the keyboard to a USB port on the back of your computer.
Step4. Use the flathead screwdriver to pop open the hinge cover. Slowly and carefully pry it open from the right side to the left side, exposing the keyboard screws. Using the Phillips screwdriver, remove the screws that hold the Compaq Keyboard in place.
Note: Keep these screws in a safe place.
Step5. Gently tug the Compaq Keyboard component toward your laptop display. You are trying to pull it out of the slot that is located near the palm rest and mouse pad. It doesn't take much force, but you must be firm. Once you have pulled it out of the slot, you can lift it up and remove it from your laptop.
Step6. Take the replacement keyboard and slide it into the slot. Once in place, screw it into place with the Phillips screwdriver and the screws you removed in Step 2. Fit the hinge cover back into place by snapping it in from left to right.
Step7. Connect the power on your laptop and verify that the new Compaq Keyboard is working.
OK, well done! Compaq keyboards are inexpensive, easy to find and quick to install. Actually, all Compaq Presario laptops have reasonable prices and you don’t have to worry if something breaks down as replacements are easy to find and cheap to buy from Papatek. Papatek Compaq Laptop Keyboard are specifically designed for each Compaq laptop brand and model.

on Aug 31, 2010 | Computers & Internet

1 Answer

LCD screen flickering

Display Configuration A flickering screen may be caused by the computer detecting incorrect display settings as it starts or returns from sleep. It can also come from changes to the screen resolution settings caused by a new program or update installation. Verify screen resolution before assuming the issue is hardware related. Faulty Inverter Next to the display screen behind the plastic screen bezel is a small component called the inverter, which supplies power to the screen backlight. The flickering indicates the power is not reaching the backlight. To fix the issue, replace the inverter. Faulty Connectors The wires and cables traveling from the display around the hinges and into the motherboard tend to wear at the hinge area. Over time, the opening and closing of the screen causes this wear. The solution is to disassemble the plastic casing of the laptop, reorganize the cables so they have no interference from hinges, or replace the cables and connectors with new ones made specifically for the computer make and model experiencing the issue. b> Test an LCD Inverter An inverter is an electrical device on the bottom of your laptop screen. The job of the inverter is to convert DC electrical current to AC voltage to maintain power to the backlight lamp. If the display on your laptop is dark but working, odds are the inverter or the lamp are at fault. When troubleshooting monitor problems on a laptop, you may need to evaluate the inverter to determine which of the two parts is malfunctioning.

Remove the screen bezel on your laptop. The bezel is the piece of the computer casing that surrounds and protects the LCD screen. To remove the bezel, remove the screws around the screen. Bezel removal method may vary by model. Once the screws come out, the bezel should pop off. The inverter will be under the screen. Attach the positive probe (+) of a multimeter to the pin 1 on the inverter. The inverter has two connections, one on each end. With the laptop screen facing you, look at the left side of the inverter. Pin 1 is the top metal flange pointing to the right. Secure the negative probe (-) of the multimeter to any bare screw. There should be a screw securing the inverter to the laptop that will be perfect for the negative ground connection. Turn the laptop on to test the inverter. Turn the multimeter on and check the multimeter reading. If the display records voltage going to the inverter, such as 19 V DC, the inverter power supply is working. Turn the laptop off. Unplug the LCD inverter connection on the right side of the inverter. This disconnects the backlight from the inverter. Plug a working backlight to the connection on the right side of the inverter. Turn on the laptop. If the screen lights up, the backlight lamp is bad but the inverter works. If the screen remains dark, the inverter is bad.

Feb 25, 2013 | HP Pavilion Computers & Internet

2 Answers

My ASUS laptop doesn't boot and displays vertical lines when plugged in

Try pressing in near the bottom of the screen near the battery, you should be able to make if flicker and come back to normal, even if you have to keep it pressed in. I have the exact same problem on my U31F.
It's 95% a loose connector inside the screen, or near the hinges.
I'm trying to figure out how to approach it myself, but will probably end up taking to asus for them to fiddle with.

Jun 22, 2012 | Computers & Internet

1 Answer

Change sceen

A replacement screen maybe available from this WEB site.
The screen is removed by undoing the hinge screws, careful unclip the video connector from the motherboard.
Keep the screws together as you remove them so you will know which screws are needed to install when you fi the new LCD screen
Undo the screws that hold the bezel that surround the LCD screen, then remove the bezel (it may be also held in place with double sided tape).
When the bezel is removed the LCD screen is secured to the hinge assembly by more screws around the edge of the LCD screen.
When you install the new LCD screen, reverse the order you took in removing the LCD screen.
These WEB sites may assist you in repairing the LCD etc.
Replacing Display hinges

Laptop repair info

Feb 11, 2012 | Computers & Internet

1 Answer

Screen becomes white for my laptop what is the reason?

Losing the display on a laptop or notebook computer is a perplexing and frustrating problem. It's a problem that is somewhat difficult to diagnose, and can require specialized tools and a considerable financial outlay to repair. When the display on a laptop computer stops working, the computer is usually not worth the investment to repair.

1. Diagnose the problem with your computer. Watch the screen from the moment you hit the power button through the time it should take to boot into the Operating System.
Adjust the computer's contrast and brightness through their full ranges to make sure that the display settings have not been changed.
Reset the computer's LCD-External Monitor display with the LCD/External Monitor key combination and reboot the computer.
Continue to Step 2 if the screen is blank throughout the booting process.

2. Adjust the screen from its fully closed position to its fully opened position. Watch the monitor for any change from a blank screen to a display or vice-versa. If the screen flashes or cuts out, the LCD panel will need to be replaced. Skip to Step 5.

3. Skip this step if your computer does not have an external monitor output.
Connect your computer's external monitor output to a known good monitor and change the display from LCD to External Monitor (the keystroke combination is different for all notebook brands). Reboot the comptuer, if necessary.
If the computer does not display to the external monitor, the video card could be bad. Skip to Step 6.

4. Consult with a professional technician to determine the cost-effectiveness of replacing your computer's LCD if you are not knowledgeable in that area.
Purchase a compatible replacement LCD and install it yourself, or pay a professional technician to do so if you do not feel comfortable performing the repair.

5. Verify that the monitor connection cables are not loose or disconnected before attempting to replace it.
Replace the monitor yourself by removing the old monitor. Remove the hinge covers by gently prying them. Check if they are screwed to the computer before prying.
Find the monitor cable's connection to the motherboard. Turn your computer over and remove any plates that may cover the point of connection. Note the orientation of the cables before disconnecting them.
Unscrew the monitor from the hinges and gently detach it from your computer. Feed the new LCD panel's wires through the same path as the old wires, and reconnect them. Secure the new LCD's hinges and replace the hinge covers.
Power up the computer and check that it works. If it does not, recheck the wire connections.

6.Consult with a professional technician to determine the cost-effectiveness of replacing your computer's motherboard or video card if you are not knowledgeable in that area.
Purchase a compatible replacement motherboard or video card, and install yourself or pay a professional technician to do so if you do not feel comfortable performing the repair.

7. Replace the motherboard by disassembling the computer. Document every connection and be sure to retain all screws and small parts in order to reassemble the computer correctly. Reassemble the computer and power it up; check the keyboard to make sure that it has been reconnected properly.
Replace the video card by removing any covers or plates that hide the card. Remove the old card and install the new card in its place. Power up the computer to test the display.

I hope you find it very helpful. Thank you for using fixya.

Aug 13, 2011 | HP Compaq Presario V6000T Notebook

1 Answer

LCD replacement

The LCD screen is fixed to the base of the laptop with screws at the hinges.
Some screws are hidden behind small stuck on plastic covers, you need a thin sharp blade to lift them to reveal the screws. The frame around the LCD screen most likely held in place by plastic clips or stuck on with double sides tape. Slide a spatula between the LCD and frame and gently prize the frame free, take care not to break the plastic frame.
Once you remove the frame there are screws that fix the LCD to the lid of the laptop.
You need to lay the screew flat to unclip the plastic cover to expose the hinges and the video cable between the screen and motherboard. There are usually screws holding this cover in place.

Mar 09, 2009 | Toshiba Satellite A305-S6883 Notebook

1 Answer

Replacing Laptop LCD Screen

you'll need to remove the screws holding the screen bezel (the plastic around screen) on...they'll probably be under little circular plastic or rubber covers....gently pry these out as they'll go back in place when you reverse the procedure....should be four of them....Gently pry the bezel away from the main screen housing ...once thats'll need to unscrew the screws holding the screen onto the hinge plates...(again should be 4 of these)...screen should now be free
NB be careful when screwing in the new screen to the hinge plates as overtightening can sometimes crack the screen

Dec 15, 2008 | Compaq Armada E500 Notebook

1 Answer

How to change the LCD

Leo -

Replacement LCDs are available for just about every make and model of laptop on Ebay, generally for a reasonable price.

However, installing a new LCD in a laptop can be a difficult operation; I highly recommend having the installation done in a repair shop.

If you do decide to try installing a new LCD yourself, here are the basics:

There are several screws you need to remove. On the bottom of the computer are generally between two and six screws that hold the power/hinge bezel in place, as well as the keyboard. Remove these screws and CAREFULLY pull up the bezel. The keyboard may also have screws under that bezel, remove those before lifting the keyboard (usually doesn't have to be completely disconnected, just shifted aside, but don't stress the ribbon cable that connects the keyboard to the motherboard too much).

With the bezel and keyboard out of the way, you should see a cable that connects the motherboard to the LCD through one of the LCD hinges. Disconnect that cable.

The plastics covering the LCD should have a handful of rubber or plastic 'plugs', between four and ten of 'em, with small screws located underneath each. Remove these screws, then very gently use a small flathead screwdriver to pry the LCD plastics apart at the seams along the side.

Once the front plastics are removed from the LCD, disconnect the long, slim PCB that rests beneath the actual screen. Remove the screws that hold the screen to the mounting brackets along its sides, and the LCD should be loose. Carefully lift it from the rear plastic cover, and you'll see a ribbon cable connected to the display. Release the clips that hold the ribbon cable in place on the screen, and you're ready to put in the new LCD!

I know its long and circuitous, but repeat the steps above in reverse to install the new screen.

Hope this helps!

Jun 13, 2008 | Acer Aspire 5500 5570-2609 Laptop

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