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I have a hp Lcd monitor (f2105) and it shows a blank screen. The power light remains on and if i turm it off and back on again, screen comes on for a split second goes blank again. I've plug it into another computer and still the same problem please help

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  • Casey
    Casey May 11, 2010

    Screen come on for a split second as in
    1) Shows the desktop for a split second
    2) Powers up, but goes into sleep mode after a second

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  • 69 Answers

Hi,

sounds to me that the main board on your monitor needs replacing.

regards,

Philip

Posted on Dec 01, 2008

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1 Answer

My 1 year old computer has a black screen but u can hear the computer running help....


Are you getting any beeps while your computer starts up or when it has already started? If yes, then refer to the following HP Support page to get details about different types of beeps and the respective issue they indicate:
http://h10010.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&dlc=en&docname=c02222922#N315
If you are not getting any beeps, you can start troubleshooting the issue by first checking the connectivity and performance of your monitor. To do this, refer to the steps below:
1)Make sure that your monitor has power and the power light on it turns On when power is supplied to the monitor. If the light stays Off, turn Off the power supply- unplug and plug the power cord- reseat the power adaptor connection on your monitor's end- turn On the power supply. If the monitor's light glows, see if the computer still shows the blank screen. If yes, follow the steps ahead.
2)If your monitor is of flat panel LCD type, unplug its power cord and wait for around 30 seconds so that the electronics in your monitor are reset. Now reconnect the cord and turn On the monitor.
3)If you are still facing the blank screen issue, disconnect all the connected devices to your computer except mouse, keyboard, and monitor. Also remove memory cards from card reader slots (if any) and thumb drives connected to your computer (if any).
4)If the above steps do not resolve your issue, you can try (if possible) to connect your monitor to another video cable (if it is detachable) for testing purpose.
If the issue still persists, you can refer to the HP Support links below to troubleshoot your issue:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02217843&tmp_task=solveCategory&cc=us&dlc=en&lang=en&lc=en&product=5296671#N69
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03561545&tmp_task=solveCategory&cc=us&dlc=en&lang=en&lc=en&product=5296671
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03518095&tmp_task=solveCategory&cc=us&dlc=en&lang=en&lc=en&product=5296671

GuruAid.com

Jul 07, 2014 | HP Black Envy TouchSmart 20-d13w...

1 Answer

I have a hp laptop. was on line and screen went black. and will not show again. it strats up sounds but black screen.what do i do


1) Do you have a VGA monitor that you can use for an external monitor?
{VGA monitor is also referred to as a CRT monitor. Looks like a small TV}

The back of the laptop, or side, has a VGA port. The VGA monitor is plugged into it.
{Laptop off}
Then the VGA monitor is turned on, and allowed to 'come to life'.

Now turn on the laptop. Press the Fn key down on the keyboard, and hold it down.
Now press the Monitor toggle over key.
Since you did not state the HP laptop Model Name, and Model Number, I can only give you generic guidance on this.

The monitor toggle over key has a monitor screen symbol on it. It will be one of the F keys.

(It's an External Monitor toggle key.
Press it one time and the display toggles over to an external monitor.
Press it again, and both the laptop LCD screen, and the external monitor have a display on them.
Press it once more, and the display goes back to the laptop's LCD screen )

If display shows up on the external monitor, you have a problem with the display of the laptop.

Primer:
An LCD screen cannot produce enough light by itself. It needs an additional light source.
A Backlight is used as an additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp {Bulb}
Similar to the fluorescent lighting used in homes and businesses, but on a MUCH smaller scale.

{Average Backlight is 3 to 5 inches long, and half the diameter of a No.2 pencil.
The Backlight is located on one edge of the LCD screen}

An Inverter is used to provide power for the LCD screen, and the Backlight.

90 percent of the time the problem is the Inverter.

Inverters are relatively cheap, and if I knew the Model Name, and Model Number of your HP laptop, I could give you a link to HP Support where you could download the Service Manual for free.

This way you would have a manual to show, and detail how to replace the Inverter, and I could guide you.

I could also give links for your perusal for Inverters.

There is one more thing however.

HP Pavilion DV2000, DV6000, and DV9000 series laptops, have a graphics chip overheating problem.
The laptop comes on, the blue indicator LED lights light up, but the LCD screen is black.

This video explains why, shows a solution to fixing the problem, and details out a lot more than I am privileged to state here,

http://www.youtube.com/watch?v=bnkQNmKauEc

Have further questions regarding any of the above, please state in a Comment.
(Believe upper right of your page)

Regards,
joecoolvette

Dec 02, 2010 | PC Desktops

1 Answer

I have an hp pavilion dv5. When I power it on the computer starts up but the monitor doesn't come on. And then it does this series of beeps. Beep beep beep. It does that series 5 times


Before you begin
Check the following items before using the steps in this document:
•If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
•Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
•If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
•Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots.
With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting. Update the BIOS to resolve this issue.
Step 1: Connect the computer to another monitor
Connect another monitor to the computer to determine which device has the problem (the monitor or the computer). This step is very important to help you determine if the problem is coming from the computer or the monitor. If necessary, temporarily connect the computer to a friends monitor for troubleshooting purposes.
After the monitor is connected, turn on the computer and the monitor. What happens?
•If the newly attached monitor does not display anything , disconnect the cable and continue at Step 2: Is the video connection damaged?
•If the newly attached monitor displays the first startup screen(s) but then goes black, there is a problem with Windows starting. Skip to step 5 .
•If the new monitor works , the original monitor or its cables are faulty. Do the following:
1.Replace the monitor power cable.
1.Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.Replace the video cable.
Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.If the monitor does not work after replacing the cables, replace or service the monitor.
Step 2: Is the video connection damaged?
Inspect the video cable and video connectors for damage. Check for sharp bends or breaks in the cable and bent or broken pins at the connectors. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen.
Figure 1: Video connector
If you had to straighten any pins, reconnect the monitor making sure that the video cable is firmly connected and then turn on the computer and monitor. If the display is still blank, continue to the next step.
Step 3: Resetting and updating the BIOS
You can use these steps even though you will not be able to see anything on the monitor.
In case an item was changed in the BIOS, such as the primary display device setting, use the following steps to reset the BIOS back to its default configuration:
1.Turn on the computer and repeatedly press one of the following keyboard keys. Press the key about once every second for 5 seconds after turning the computer on.
◦For HP and Compaq computers that came with Windows 7 and Vista, press F10 .
◦For HP and Compaq computers that came with Windows XP, press F1 .
◦For Compaq Presario desktop computers built prior to 2002, press F10 .
1.Wait another 5 seconds.
1.Press the F5 key. This restores the default settings of the BIOS.
1.Press the Enter key. This accepts the changes.
1.Press the F10 key. This saves the changes.
1.Press the Enter key. This saves the changes and exits from the BIOS.
1.The monitor should display the first screens received from the computer (the logo screens). If not, find and download the latest BIOS update if one is available for your computer.
1.If a BIOS update was not available or the monitor is still blank, continue to the next step.

Jun 11, 2010 | PC Desktops

1 Answer

My monitor screen is ok for awhile but suddenly turns a dull yellow color. I just bought it a few months ago.


Hi,
you must adjust the display settings in the software program that was being used to change the display setting.
  • If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
  • Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
  • If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
  • follw the another steps-
  • Replace the monitor power cable.
    1. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    2. Replace the video cable. Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
    3. If the monitor does not work after replacing the cables, replace or service the monitor
  • Thanks,

    Nov 18, 2009 | Compaq Presario 5000 PC Desktop

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    Compaq Presario SR2013WM Problem


    Unplug power cable from of the PC. Then hold power button in for 30 seconds, this will drain the capacitors, then plug back in the power cable see if this helps, if not could power supply, or video card.

    Apr 20, 2009 | HP Compaq Presario SR2013WM (RE468AA#ABA)...

    2 Answers

    Monitor displays breifly then goes to blank screen


    If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.

    Dec 17, 2008 | Dell Dimension 4600 PC Desktop

    1 Answer

    HP desktop monitor problem


    hi try this ,,,
    1. Ensure the video cable is connected (and connected to the correct video port).
    2. Turn off the monitor using the monitor's power button and then restart the monitor.
    3. Cycle the power on the monitor as follows:
    4. Turn off the monitor. The power light on the monitor should be off. Leave the computer turned on.
    5. Unplug the power cord.
    6. Wait 5 seconds.
    7. Plug in the power cord.
    8. Press the power button on the monitor to turn on the monitor. One of two things happens:
      1. The image from the computer displays on the monitor and you can use the computer again. This indicates that the monitor was unable to detect that the computer had awakened from suspend mode. Turn the monitor off when it is not being used or disable suspend mode. For some computers, updating the BIOS corrects these types of suspend problems.
      2. The power light on the monitor comes on but the screen displays one of the messages again. The monitor is not receiving a video signal from the computer that it can detect and use. Continue using these steps to adjust the Windows display resolution to the Monitor's native (default) resolution
      3. Connect the monitor to another computer that you know is working to determine if the monitor should be serviced or replaced:
        • If the monitor displays an image from another computer, you know that the monitor works. Troubleshoot the video connection and graphics adapter on the computer.
        • If the monitor remain blank when connected to another computer, the monitor signal processing hardware may be bad. The monitor should be repaired or replaced.
        hope it will work for u .. little_angel

    Apr 30, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

    1 Answer

    LCD Monitor


    is it connected to a PC? is the power source good 110v or 220v?

    Mar 30, 2008 | PC Desktops

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