Chosen Solution
Unit powers up fine but image is scrambled. I tried patching 2nd monitor & it does the same. Any ideas?
Same scrambled video on external monitor = bad news. Probably a faulty graphic processor unit and that means a logic board replacement. Try all usual troubleshooting procedures (pram reset, PMU reset, etc). If nothing restore the video then replace the logic board. Here’s a link to troubleshooting steps: http://www.macosxhints.com/article.php?s…
I’m not looking forward to opening up the monitor but your common-sense response is very helpful. Thank you!
- Mark
I have a scrambled video problem on mine too, but it only happens when the tilt of the screen isn’t exactly right. Couldn’t this be a short-circuiting cable?
