Question about Apple "Imac 20"" A1224 Used"

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Early 2008 imac 20" lcd has veritcal lines. is there a way to repair the actual lcd

I have confirmed the video card is ok (External mon via Mini-dvi to vga works with no lines) Very sporadically, the correct image will pop up on the screen for a second or two then go back to gray with the vert lines

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 233 Answers

SOURCE: Mac Mini G4 Flickering Screen at Start Up

Does this have a graphics card or is it on board graphics? The problem could be there. Also might test with a CRT monitor.

Posted on Dec 22, 2008

smartr10U
  • 1305 Answers

SOURCE: Display screen does not work

First of all, try a restart with the monitor attached.
Secondly try going to the system preferences panel- It should be in the dock - the icon with the apple and the light switch.
Try to "detect displays" and see if it comes up in the menu and if the screen responds..

Let me know what you find out.

Posted on Jun 03, 2009

  • 35 Answers

SOURCE: Apple 20" display black screen

I've read that aftermarket DVI cable adapters don't work well with this set-up. You might try the Apple DVI to ADC adapter. It's expensive but I see them on eBay or craigslist from time to time at less than half the normal $99 cost.

Posted on Aug 17, 2009

rajak2009
  • 527 Answers

SOURCE: I have an iMac G5

Sir,
The iMac G5 and iMac G5 (Ambient Light Sensor) computers have a video out port located on the back of the computer, which will mirror video. Video mirroring means you can see the same image that is on the iMac G5's flat-panel display on an external monitor, television, or projector.
Using the video out port, you can mirror video with a compatible VGA display using the Apple VGA Display Adapter.
You can also use the video mirroring feature with a television or projector that has S-video or composite video connectors when you use the Apple Video Adapter.
Both the Apple VGA Display Adapter (M8639G/A) and the Apple Video Adapter (M9109G/A) are available separately, and are needed if you want to use your iMac with a VGA monitor cable, S-video cable, or composite video cable.
The video mirroring feature is "plug and play". Simply connect a VGA display, television, or projector to the appropriate adapter (see above), then connect the adapter to the video out port located on the back of the computer.
When you connect the adapter to the computer, the screen may refresh momentarily as the computer prepares itself for the new video output. The computer tries to match the resolution of the built-in and external display. If there is no match, the computer changes both screen resolutions and may black out areas on the built-in display in order to match the capabilities of the external display.
Important: To ensure that your iMac G5 automatically detects the external display or projector, be sure you plug the adapter into the external display or projector before you plug it into the iMac G5.
You can switch resolutions and frequencies for both the iMac G5 flat-panel display and the external display, television, or projector using Displays preferences.
Want to watch a DVD movie disc on a television that's connected to your iMac G5? Select a 720 x 480 NTSC (in the United States) or 720 x 576 PAL (in Europe and other regions) resolution in Displays preferences.
Tip: Because of the display limitations of most televisions, the images displayed on a television screen are usually not as high quality as those on the built-in display or an external monitor.


Thanks
Good Luck

Posted on Aug 21, 2009

gserle1
  • 4 Answers

SOURCE: imac g4 lcd black screen replaced pram battery

If you can find an older SVGA monitor, try hooking it up to the port on the back of your mac. If you get video then chances are the LCD display is shot.

Posted on Sep 02, 2009

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I am running OS X 10.4.11 and would like to upgrade my operating system?


Please provide more information.
To what would you like to upgrade it?

Since OSX Mavericks was just announced, I'm going to assume that's what you're wanting to upgrade to.

Not all Macs can run Mavericks.

Mavericks Capable Macs

Mavericks, like its predecessor Mountain Lion, requires one of the following Macs with at least 2 GB of RAM and 8 GB of available hard drive space:
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If your Mac isn't one of the ones listed above, you won't be able to upgrade.

If you have an iMac, MacBook, MacBook Pro, or Mac mini model that was originally released in Early/Mid 2006, the latest version of Mac OS X your system supports is Snow Leopard.

http://store.apple.com/us/product/MC573/mac-os-x-106-snow-leopard

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soldbyajt,

It sounds as though the video card has gone bad in your system. There are a couple of things to try to eliminate the lcd.
If the LCD on the system shows no display or has other problems, here are some basic steps to take:
  1. If the LCD is not displaying any video, connect an external monitor to eliminate a no-POST problem. A good image on the external monitor eliminates a video card problem or a POST problem.
  2. Connect an external monitor when possible for all LCD-related problems to help eliminate a possible software or video card problem.
  3. If the LCD has lines on the screen, check the system during POST as well as system setup to determine if the lines are present in all modes of operation.

    If you cannot get any video by connecting an external monitor then your motherboard will need to be replaced. The reason for the motherboard replacement is because your video card is soldered onto the motherboard.

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I want to connect an LG 32LD550 television monitor to an Intel based 24" I mac computer---what cable is needed?


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1 Answer

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Whenever I turn on my desktop the screen just stays black.


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2 Answers

Yellow line


It sounds like a hardware problem ,if it still has warranty then you should return it.
It could also be a faulty vga card the only way to test would be to connect monitor to another computer.

Good Luck

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