Re: TDS 400 series scopes - calibration data


Is there a risk of losing critical operating data when the internal batteries run down?
I was pretty sure nothing important would be lost but just to make sure I opened up my TDS420,
disconnected the two batteries and let it sit for a little more than 5 minutes. This is what I found:

Saved Waveforms: Lost
Saved Setups: Lost
Calender Clock: Actual time and date lost
All options: OK

At first power up It will fail diags due to the corrupt data in the RAM's but is OK next power up.


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