Repair & Schematics
Sega Mega CD
Boot Up Diagnostics (Mega CD)
To help diagnose what is wrong there are a few common issues that can help pin point an issue.
Make sure to use a known working Mega Drive for these tests.
Monitor the green and red LEDs on the Mega CD and compare them below.
- Green light (and sometimes red) on for split second, then off
- Green light and red lights back on and full boot
- Green light on for a split second, then off
- Green light back on and hangs at boot screen with no MEGA CD / SEGA CD logo
- Black screen with no LEDs at all on Mega CD