Here's one of my CTC-68s during replacement of a few caps that looked ugly, that ended up fixing my convergence issue. Note that basically, it's almost identical in design to a CTC-53 tube set, with solid state components. In fact, I'd be willing to wager that it WAS adapted from a tube chassis.
Unlike tube RCAs, though, after replacement of a few caps that were blistered, I had no problem getting the convergence spot on and it's been fine since. Best of both worlds IMO. Performance wise, there's nothing that'll blow your mind about the picture, but it's been a good reliable television for me for over a decade.
Japanese TVs to me are much like Japanese cars. They're extremely reliable, and extremely forgettable