Emu XL-7 & MP-7 User's Group

I am certainly nop expert on this...but it sounds like the OS is corrupted.  
Searching for OS is what the machine says when you start it with the enter 
button pressed down; perhaps that button is stuck in the down position.  
Perhaps others with more knowledge can tell you if it would help to 
reinstall the OS    best wishes for you and your machine; when they act up 
it is a bother

Dan