G07 No Neck Glow...Great!

NCC-1701

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Was working fine up until a few days ago, turned it on and no picture. I have 120vac at the monitor chassis power connector from the isolation transformer, B+ measures 152vdc, not sure if the monitor circuit went into shutdown, both pigtail fuses on the chassis check good, no signs of any implosion, cracking on the Flyback, thought maybe the HOT died, but DMM shows 476, and 510 on each leg. I did make some minor screen adjustments on the pots recently, not sure if I turned up the B+ pot by accident. I'm going to try to turn the B+ back to 120vdc, need some direction on what to check next so I don't go looking for trouble.
 
should I start with turning the pot on B+ back to 120vdc, see if it holds steady, like I said not sure if I turned it up by mistake causing the HV shutdown.
 
Get out the high voltage probe and read the voltage as you power up the monitor. If it climbs rapidly to 30,000 volts then falls to zero, you have a problem in the power supply section of the monitor main board (usually the B+ regulator transistor).

Normal high voltage is between 19,000 and 22,000 volts.
 
Unfortunately I do not own an HV probe, what about the B+ regulator component, anyway to test it directly on the chassis with my DMM.
 
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