Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
The look of your FCV-667 is that of a deep-profile, CRT-based display.
Given all I know about electronics, I advise you to at once, without delay, turn Off the FCV-667. It might be emitting UV radiation. If so, anyone's eyesight, that looks at it for long, is at hazard.
You see, when a CRT-based display gets smaller, it may be owing to an overvoltage of the anode on the CRT tube. Which in extreme cases, can cause UV emissions, or even X-rays in really severe cases. I doubt yours is a severe case. In fact, UV emissions or X-ray emissions from CRT-tubes when the circuitry behind them had severe errors, is a thing of the 1960s, and hopefully yours has been designed against such a possibility. But I wouldn't depend on it.
Now... if the same things are shown on the display that's left, just smaller, it is indeed an electronics malfunction requiring repairs. I don't doubt that for a minute.
Let me know... and let me know what you think. I'll advise you further. Thanks.