/vr/ - Retro Games

>>2006398
I only repaired consumer CRTs and i encountered a similar issue in my KV-M1400D.
I just didn't stayed on, only if i wiggled the power switch then it might did.
I found the reason for this after desoldering that power switch.

However, it's possible to tell if a CRT that displays nothing is running.
One way would be to dim your room like a darkroom, you should be able to see that the whole phosphor glows.
The other way is to see if the heater for the electron gun is glowing, i don't think that you could see that through venting slits on a PVM. If not then take it apart until you exposed the CRT, so that you can look at the clear glass of the neck.