Question about Compaq Presario R3000 Notebook

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Compaq r3000 dark screen

Greetings. I am having a similar problem with my laptop. Works fine with an external monitor. I replaced the inverter which did not make a difference. I had not tried wiggling the rubber screen shut-off button until reading your post a few minutes ago. That did restore the screen, but I suspect this is not much of a fix. Any ideas?
Please respond to ndobner at yahoo dot com

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  • auxialiary Sep 23, 2008

    I have not hooked my laptop to an external monitor yet but my screen is also black on my presario R3000. Any solutions would be helpful.

  • Anonymous Sep 25, 2008

    I have same near dark screen. when i use an second monitor my desktop picture appears but no icons or task bar. I have done all the configing to allow a second monitor to opperate but it is no use. Any ideas would be awsome.

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If you already replaced the inverter and the screen still continues dark, you need to replace your lcd screen. Your video card is good due you have signal with external monitor.

Posted on Oct 13, 2008

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Compaq presario v5000 dark screen and failing hard drive


The problem you described, is related to the inverter board.
There's a little board, that take care of lights on the monitor. You must replace the inverter board to solve the problem.

Here you have an image, of an inverter board.

ed452f58-06a1-44e2-8fe4-71fd08bc1dd5.jpg

Good luck, and be safe!
Inverter boards, it's dangerouse to replace yourself if you don't know what you are doing. High-Voltage inside :)

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Your Question My Toshiba Satellite m115 will boot up but the monitor wont light up, you can see the images in the back round but the screen is dark. if i connect to external monitor the external monitor...


Diagnosis:
1. Test using an external monitor. If it works, then either the screen bulb or the inverter board might be defective.
2. Test the inverter. Easiest way to do it if you have a good screen with a good bulb. Connect the good screen to the inverter board & test it. If it lights up, then the inverter board is good. If it did not, then the inverter board is bad & needs to be replaced.
3. If the inverter board is good, then we are left with the possibility that the screen bulb is bad. To fix this, we will need to replace the LCD screen.

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My brightness control does not work just turned on and can not hardly see anything it is up and running what now


Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

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Have you tested it with an external monitor?

I would say you either have a damaged inverter board or screen baclight lamp. Usually the inverter board fails in one of the following ways:

1. When you turn on the laptop, the screen lights up for a short period of time and then goes dark. You still can see an image but it is very dark, almost invisible and definitely not usable. When you restart the laptop, the screen lights up and then goes dark again. The laptop works fine with an external monitor.
2. Your laptop turns on but the screen remains dark all the time. You still can see a very dim image outline. The laptop works fine with an external monitor.
3. The laptop screen works fine for hours or even days, but sometimes it goes very dark as it mentioned above. When you restart the laptop, the screen works fine again.

Inverter failure symptoms are very similar to backlight lamp failure symptoms and in most cases you cannot tell which one is causing the problem until you replace either the inverter board or the backlight lamp. From my personal experience, inverter boards fail more often than backlight lamps. If you have to guess, replace the inverter first.

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The screen on my laptop flickers colors and there are lines running through through middle red blue green ect.. it does work on an external monitor tho could this be the lcd inverter


Lines on the screen means the LCD is bad and needs to be replaced. The inverter just makes sure the lcd turns on. That wouldn't cause lines on the screen.


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1 Answer

My compaq preasrio r3000 black screen cant conect to an external


have you any other A/V ports out ie Svid etc if so try that via an A/V lead, if that works reset your bios settings to minimal settings, if that doesnt work search the 'net someone somewhere has had the same problem! try shining a flashlight/lamp onto the screen whilst booting up, if you see anything on the screen then your inverter is definatly gone and yes it could still be your inverter! your laptop may have software/hardware issues with an external monitor?

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Sounds like the auto-dim in the BIOS is set too low. Fortunately the Compaq R3000 allows you to adjust the brightness right from the keyboard. Hold down the [FN] function key while tapping the [F8] key will brighten the screen, while [FN]-[F7] will dim it. The settings are different for running on AC power and battery, so you must do each individually.

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