I have a 93 fd and my odometer display just went out. The background orange light still works but it doesn’t display the numbers at all. Could this be the actual cluster? Or the computer? Has this happened to anybody before? How did you fix it? Thank you!

 

There are several threads on the forum about odometer problems. You might try researching some of them to see if your problem (and possibly solution) is similar to any of them. Here's one to get you started:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/odometer-illumination-fix-603413/