If, when it goes dark you can still see the desktop, replace the inverter cables. If it goes totally black, replace the Display Data Cable. The inverter cables are the yellow and pink ones show in step 6 here: http://www.ifixit.com/Guide/Repairing-MacBook-Core-2-Duo-Installing-LCD-Inverter-fast-method-A1181/3631/1
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If, when it goes dark you can still see the desktop, replace the inverter cables. If it goes totally black, replace the Display Data Cable.
If, when it goes dark you can still see the desktop, replace the inverter cables. If it goes totally black, replace the Display Data Cable.
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If, when it goes dark you can still see the desktop, replace the inverter cables. If it goes totally black, replace the Display Data Cable. The inverter cables are the yellow and pink ones show in step 6 here: http://www.ifixit.com/Guide/Repairing-MacBook-Core-2-Duo-Installing-LCD-Inverter-fast-method-A1181/3631/1