1

Score

Avatar
noland Roger
13

Asked

scrambled image on screen

History

Unit powers up fine but image is scrambled. I tried patching 2nd monitor & it does the same. Any ideas?

Post Answer

1

Score

Avatar
lemerise
17.3k

Answered

Permalink • History

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...

1

Score

Avatar
Mark Lambertson
13

Answered

Permalink • History

I'm not looking forward to opening up the monitor but your common-sense response is very helpful. Thank you!

- Mark

0

Score

Avatar
nick
15.3k

Answered

Permalink • History

Your video card could need to get relowed or the monitor is bad

Or if you not want to do the reflow you need a logicboard

Edited by: nick ( )

0

Score

Avatar
Mark Lambertson
13

Answered

Permalink • History

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?

Yes it could be a bad LVDS (video) cable or a faulty LCD screen. First connect your computer to an external monitor and if the video is normal on the external then try to reseat LVDS cable both ends. If it doesn't solve the problem, replace the LVDS cable. If you still have the issue then the LCD panel need to be replaced.

lemerise,

Add Your Answer