I mostly use it to play CDs and rely on the LED display for track no, elapsed/remaining time, etc. I had and used one of these for several years, and it worked fine. Then the display went out. Couldn't even tell if the machine was on, until I hit play and listened...
So I ordered a used one and it worked like a charm, with display as expected, for a couple of weeks. Then the display said it couldn't load a CD. And when I did get to work, unit turned itself off in the middle of a CD. This behavior replicated. So I presume the unit is toast.