Why Is Your Mac on but the Screen Goes Black?
Many possible reasons that will lead to your MacBook Air or MacBook Pro screen going black, such as:
No or no enough power supply.
Insufficient Mac disk space.
Loose or damaged Hardware or firmware.
Whatever the causes are, you can identify them immediately. You need to troubleshoot your MacBook black screen problem in different ways, then the culprit can be locked at the end.
we have been successfully active in classic mac support for many years. why? because we like to listen to you and because we take our customers and their questions seriously.
it is important to us that you are satisfied with your equipment and that your work processes simply work.