If your NVRAM is still viable, dump the contents using a prom programmer and
then put the data into a new one before installing it.
It's not too hard to cobble up a suitable device using an arduino.
When you take out the old one, put in a good quality socket.
Paul
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On Mon, May 20, 2019 at 01:10:46PM +0200, Alberto I2PHD wrote:
I have a 2465B 'scope that I bought second hand about 20 years ago. It has
always worked flawlessly, no signs of the dreaded 04 error at power on.
Considering that maybe the previous owner did use it for a number of years
before selling it to me, I am fearing that the battery that holds the
calibration data is near to the end of its life....
So, my question is... is there a recommended procedure to change the battery
with a fresh one without losing the calibration data ?
I don't have the zillion test equipment that Tektronix deems as necessary to
perform a new calibration, and sending it to someplace in the States to have
it calibrated would cost me for shipping alone an amount similar to the
actual price of the instrument...
Thanks for any suggestions...
--
/*73 Alberto I2PHD*
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Paul Amaranth, GCIH | Manchester MI, USA
Aurora Group of Michigan, LLC | Security, Systems & Software
paul@... | Unix & Windows
