Very helpful, thank you! I actually already submitted a manual request to SAMS, first for the CV-20/NV-20, then for ANY Midwest TV, hoping the circuitry might be similar enough so as to be able to figure things out. The response was that neither SAMS nor their partners have photofacts sheets or schematics for any Midwest TV model.
As for the arcing, so far it's only something I can hear, not see. I've looked at the HV area with the shielding cover off, and also from under the chassis, and haven't seen anything. Maybe I need to turn the lights off and try again.
