Not that anyone cares.......Zenith console

Here's a set that's nearby which I found on Craigslist. Sent the person an e-mail and am waiting for a reply. It's not working and they "believe it needs a new computer board" What gave them that idea I dunno.

Can anyone guesstimate what model this is, and which series Chromacolor etc it may be? Am curious if there's a common failure mode to these. I really like the looks of this for a daily driver. Thanks