User Guide

Mac mini Troubleshooting - 15

Symptom Charts

Display shows ghosting (signal reﬂection)

1. Verify monitor that is used in testing is known-good and is supported by this computer.

2. Verify that the cables are correctly installed and ﬁrmly seated.

3. Connect a known-good display (if you have an extra one available). If it solves the

issue, replace your display.

4. Try and known-good DVI to VGA adapter.

5. Replace the adapter cable.

6. Replace the logic board.