On Fri, Nov 8, 2019 at 02:45 PM, Szabolcs Szigeti wrote:
But these are all adjustments requiring turning trimmer pots.
I had a quick look in the SM. The Adjustments chapter (5) mentions e.g. on pages 5-8 and 5-10 (in my manual) "WRITE TO CAL STORE" and on page 5-13 "Pushing A HORIZONTAL MODE causes the instrument to make firmware corrections...".
I assumed that those writes and corrections were to the NVRAM. If you're right, the 2440 has yet another kind of "writable ROM" than the NVRAM. Do you know if that's true and if so, what kind of storage it is?
Raymond
Raymond Domp Frank