Another Sencore cr70 calibration question

[4thdoctorwho]

I recently bought a cr70 and was going through the field calibration/test procedure and I have a question that I hope someone can answer.

Regarding the first two steps of the field test procedure where you are supposed to get greater than 350 volts. My question is once you press and hold the rejuve button, does the voltage remain steady? On the first two steps the voltage initially reads -400V then starts dropping fast to well under -300V. It can go down to the 250V range. Is this normal?

Any help would be appreciated.
Thanks,
Tony

[bandersen]

Yes, positive voltage are correct when you have the ground lead going to G1 and positive to K (cathode).

[4thdoctorwho]

Originally Posted by bandersen

Yes, positive voltage are correct when you have the ground lead going to G1 and positive to K (cathode).

Thanks, that is what I figured. Just wanted to be sure.

Do you have any insights regarding my first question on whether the -400V should be steady or is it normal for the voltage to drop while pressing the rejuve button.

[4thdoctorwho]

Does anyone have a cr70 who could do the first two steps of the field test mentioned in the manual.
This is in regards to the question from my OP. It only takes a minute to setup.

Thanks again,
Tony