MSO-X 4104a stuck on self check

I recently tried to power on my MSO-X 4104a but found the scope is stuck at the startup screen and continuously toggling through the various self test startup sequence (where it toggles through the main functions toggling on their LEDs).  Of course, someone will tell me this needs to be sent to repair, but I want to understand how to better diagnose what's at issue, is there a debugging screen or some kind of better disagnostics output that can be enabled?  As well, quite upset that it won't run, the scope gets very little use.

Thank you for your assistance.