Question about Apple 15.4 MacBook Pro Intel Core 2 Duo 2.33GHz Notebook with Glossy Display REFURBISHED Notebook

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Screen will remain blank after mac is turned on sporadically.

When i turn the computer on the screen will stay blank, allowing no images to appear. Also the computer will randomly shut off completely when I am using it.

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  • Kenneth Klare
    Kenneth Klare May 11, 2010

    Do you get Menu bar and background picture?

    Random shut off sounds like a battery problem.

    Go to Apple Menu :: About This Mac :: More Info, select Power and give the "Charge Information:" and " Cycle count:". If the count is over 300 or charge remaining is < 80% of full charge and it is not charging, buy a new battery. "See" you at the Genius Bar.

  • Ben Wabnick
    Ben Wabnick May 11, 2010

    are you ever getting any video on the screen now when you turn the laptop on?




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  • 73 Answers

The only place i know they fix this is london (shop name micromend ) had the same it is a common fault graphics chip fault

Posted on Aug 30, 2009

  • 1 more comment 
  • L.K.Computers Ltd
    L.K.Computers Ltd Aug 01, 2014

    The shop mentioned is no longer existing .

  • L.K.Computers Ltd
    L.K.Computers Ltd Aug 01, 2014

    The shop mentioned is no longer existing .

  • L.K.Computers Ltd
    L.K.Computers Ltd Aug 01, 2014

    There is a new shop opened close-by L.K.Computers Ltd this is where you can look for all the hardware and software problem mac and pc related plus much more.

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Toshiba Portege r200 was working normal (up until yesterday). Today, when I first turned it on, the fan was on and it sounded full blast, but screen remained dark (blank). I held power button until it shut...


The part that supplies the power to the screen is gone. I recall is is called the 'exciter'. They can be replaced, so take it to a computer repair shop. Same thing happened to my Toshiba.

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I have a problem about my laptop if i turn it on my screen are still blank but my laptop is still working.. can i ask if what is the problem about my laptop. pls help me... tnx!


Although your Toshiba portable computer appears to be on and running, there is no image on the built-in LCD display screen Look closely at the LCD display screen. If you can see a faint image on the screen, the display screen's fluorescent backlight may be turned off. Shining a flashlight directly at the screen will make it much easier to see whether or not there is a screen image actually present, though not lit up. On most Toshiba portable computers, there is a small plastic or metal pin near one of the LCD display lid hinges. When the display lid is shut (closed), this pin is pressed against an internal switch which turns off the backlight, saving battery power. You may be able to turn the backlight on again by tapping this pin repeatedly. The normal screen image will then suddenly appear, or re-appear.If there appears to be no display image at all, the problem is probably not related to the backlight. In this case, press and hold the Fn key and then press the F5 key several times, pausing several seconds between each keypress. This will cycle through several display output modes: Internal, External, Simultaneous, and possibly one or two more.If no image appears on the LCD display after cycling through the Fn-F5 sequence, try doing so with an external CRT monitor attached, if possible. If you still see no image, on either screen, try restarting the computer with the CRT monitor connected.If you see a screen image that looks normal when the computer is first powered on, or when you try to enter the BIOS Setup during the power-on sequence, it's an indication of a software problem (a driver or an application that's launched while the computer is loading Windows, possibly). Try downloading the display drivers for the computer from the Toshiba Support website, and then re-installing them.If the LCD screen or an external CRT monitor is blank only while the computer is first powered-on, but then works fine, it's probably not an indication of a problem. Some models display no text or images during the startup process. Additionally, installing some Windows Updates may delay the appearance of the familiar Windows desktop.If there are blank margins bordering the image on the LCD screen, launch the Windows Control Panel, then double-click the Display icon. Click the Settings tab, and then adjust the Screen Resolution setting until image fills the entire LCD screen, which will cause the margins to disappear.If the font size on an external CRT monitor seems too small for comfortable viewing, try clicking the Advanced button on the Settings page, and then adjust the DPI (dots per inch) value. Try 120DPI and 135DIP, to begin with. Avoid changing the DPI to much greater values, in order to avoid settings that will be difficult to change.
  1. Hold down the power button for approximately 10 seconds until the computer turns off.

  2. Verify that neither one of these keys are stuck in the down position:

    the Tab key (arrows pointing left and right)

    the tilde key ( ~ and ` characters)

  3. Turn the computer on.

  4. If either of the keys above appears to be stuck in the down position, and if the issue is not corrected by pressing these keys repeatedly, then service is required.

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1 Answer

I have held down Fn and F4 to restore my image to my lap top screen- many times, but the screen remains blank


If you have diverted the screen output to an external monitor or a TV, turn off the computer then disconnect the TV or monitor and turn computer back on again. The computer LCD is the default screen.

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Hp flat panel monitor comes on shows logon and then blank screen


Ok, another words, monitor powers up for few seconds and shuts down by itself. If green LED on the front panel turns off as well or stays on?
If stays on, then inverter turns into protection mode because of old backlight lamps.
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Computer turns on but screen wont


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Hardware would be the invertor board is bad.

Ttry to start with F8 and choose start in vga mode,If this allows you to start normally,go to the device manager and update the video drivers

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1 Answer

Blank screen


This looks like a problem with the video card or the power supply to the monitor. Try connecting a different monitor and if you still face the same problem then probably you may need to have a look at your video card or its connection in motherboard

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Flat Panel Monitor: 1907FPt


Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
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  2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove both Digital (white connector) and the Analog(blue connector) cables from the back of computer.
  3. Turn on the monitor.
    The floating 'Dell Self-test Feature Check' dialog box should appear on-screen on a black background if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen.
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Dell172fpb 17" monitor


Self-Test Feature Check (STFC) Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
  1. Turn off both your computer and the monitor.
  2. Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove Analog (blue connector) cables from the back of computer.
  3. Turn on the monitor. The floating 'Dell - self-test Feature Check' dialog box should appear on-screen (against a black background) if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green and the self-test pattern will scroll through the screen continually.
  4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your video controller and computer system; your monitor is functioning properly.

Thanks
proton

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