Re: TDS 500 600 700 series calibration

Dan Fish
 

Hakan,

Consistent with the self-test complaining about cal if you mix boards between units. I do know the NVRAM holds purchased options. When I used to calibrate 520s and 540s I would pull the NVRAM, copy it into a fresh Dallas part, reinstall it, and then run the cal. Now I wonder if I was wasting my time. But I do recall a NVRAM location you can edit and turn on the FFT.

Do you know what part fails when you get the CalFails?

Thanks,
Dan

-----Original Message-----
From: TekScopes@groups.io <TekScopes@groups.io> On Behalf Of zenith5106
Sent: Monday, February 4, 2019 2:35 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] TDS 500 600 700 series calibration

On Mon, Feb 4, 2019 at 07:25 PM, Stephen Hanselman wrote:


I wonder if the cal data is really stored in the NVRAM. From looking
at the dumps it looks to be used mostly for storing screen grabs.
As far as I know they are in flash ROM on the Acq board and other than screen grabs (or Waveforms) the NVRAM also contains stored settings.

/HÃ¥kan

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