Question about Computers & Internet
First, try to connect an external monitor to see if the problem is the video card or the LCD. If the external monitor works, then make sure that the brightness of the built-in display is not set to "0."
2) Next, try to reset the power Mac's PMU.
3) Reset the PRAM.
4) Next, check to see if the Apple computer has video when you start up from a disc. Find the Install or Restore disc that came with the Apple computer. Insert the Software Install and Restore disc into your CD/DVD drive.
If the same problem occur even when using the disc, then you may need to send it to the manufacturer for repair. Same thing if you're not familiar on how to reset the PMU and PRAM.
Thank you and good luck!
Posted on Jul 13, 2010
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Posted on Jan 02, 2017
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