Zenith R450X clock radio

[Adam]

I think this is a 1980 model. I picked this one up because I've never seen one of these in the white cabinet before. One of the led segments isn't working. I put an arrow towards it in the picture, while it doesn't look that dim in the picture it really barely lights up at all. Is this likely a problem with the display itself (then I'll have to find another one to swap the display out of), or something else? I don't have schematics for anything this new.