Andy recapped and cleaned the circuit boards on my two Sony KVX 370 Indextrons more then 7 1/2 years ago. Both are still running strong as the day he returned then to me.
We decided to do a couple of videos to show what they look like operating. I don't think anyone has done that in the forums so far. I've done videos on conventional three gun color sets and have not encountered the scan problem seen in these two videos. Different scan rate? Not sure.
In this link, the top two videos show one of my two Indextrons. Choose the HD setting, otherwise you will see low quality video.
https://m.youtube.com/channel/UCejCrh3g0-hsYCG63RHNyYA
(Some might say the Indextrons produce cr*p video anyway) :-)