All:
I just got this one in and all seems well. Best guess (original Tek cal date) puts the estimated vintage at around late 2006. Only issue that I can see is that the PCB seems to be slightly loose behind the top-right buttons - everything functions, but wiggles a bit. Other than that, all channels work and the self test and calibration routines pass.
So, what issues typically arise in these? I think the CMOS battery needs to be changed and I'll be inside to tighten the screws on the front board - is there any preventative maintenance or things to check while it is open? What about the availability of software upgrades?
In short, after a *long* string of bad luck (except, thankfully, for a couple of 2465B's and my LT344) I have what begun what I hope will be a happy long term new relationship with my main digital scope. (Which means a working perfectly LT344 with all options is available. Cough, cough.)
Also, what are the "NV" and "AV" in the name? I'm (pretty sure) that I've seen seen scopes with just the "TDS5054B" but I can't find anything in the manuals to tie the additional labels in with options.
Anyway, all help, tips and advice will be greatly appreciated.
TIA,
Hal