[Repairs] Rigol 'scopes for Repair centers?

[Ian Daniher]

What repairs would be carried out that necessitate a scope?
In my opinion and [limited] experience, the individuals with enough skill to
use a logic analyzer and oscope to determine the bug, and then a hot air
rework station and soldering set to fix the chip, could probably earn enough
money during the time period required to purchase a new XO(or at least a new
motherboard), therefor making it fairly illogical for first-world repair
centers to invest in such machinery.
Thoughts?
--
Ian

On Thu, Jun 12, 2008 at 10:39 PM, Nicholas Bodley <nbodley at speakeasy.net>
wrote:

>
> NKC Electronics carries them; also their logic analyzers. See
> <http://preview.tinyurl.com/4nskva>
> (Preview is a security measure.)
>
> When you get to some detail, they look very nice, indeed.
>
> Tried to download the manual (PDF) for the 25 MHz 'scope, and needed a
> username and password.  I think I clicked on Help, or such, and saw some
> Chinese!
>
> Company site (they're Chinese):
> <http://www.rigolna.com/default.aspx>
>
> Now, the $65,536 question: How good are they? I Googled a bit, and a
> rather offhand comment (sample of one) was that it's good for a knockabout
> 'scope; same person had a couple of Agilents.
>
> Also was reminded that for decent reconstruction, you need several samples
> per cycle (of a sine wave). I don't know, but the recommendation was a
> sample rate about 10x the upper limit you expect to see -- that would
> imply 1 Gsa/s (Gsa?) for seeing up to 100 MHz.
> Many years ago, Tek. had a sine interpolator, apparently to try to create
> a decent displayed waveform with fewer samples. No idea what it did for
> pulses. IIrc, it was user-selectable.
>
> --
> Nicholas Bodley
> Waltham, Mass.
> A  1 mHz clock puts out one pulse every 1,000 seconds.
> HP made function generators that went down to 1 µHz.
> Perhaps Agilent does, still.
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