On 2018-04-04 8:31 AM, Chuck Harris wrote:
You all are going to a lot of work to save calibration
data that ceased to be relevant probably more than a
decade ago.
If the scope had something important, like firmware,
stored in the NVRAM I could see spending the effort,
but what you are talking about doing is surprisingly
similar to looking for ways to change a new fender
into a dented and rusted out duplicate of the old
fender on your car... so you can replace the old
fender...
I think this is an excellent point, but are calibration procedures
documented and possible for end users?
--Toby
(I haven't looked into that question yet, but I do own a TDS460A &
others that are pre-digital)
-Chuck Harris
Claimer: I trade in discount calibrations, so my opinions
are clearly biased in favor of doing calibrations...
ADas via Groups.Io wrote:
HI MIcro,
Yes i soldered temporary wires between pin 1 and 2 of cpu. The cpu is 6802 on all the tek 246x oscilloscopes despite the label "sc67127p". Dont be afraid the cpu assisted copy of data is much less likely to go wrong then if you desoldered the old nvram and then tried reading it, which often fails..
Cheers
Das
