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REVIEW - Rigol MSO5000. Tests, bugs, questions

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Howardlong:
I've had the MSO5074 out on the bench again for a couple of weeks.

I noticed that one of the probes PVP2350 had become a bit intermittent, but if I jiggled it about a bit I could get it to behave.

Today, it's completely failed in 10:1 mode: it looks like the series 9Mohm resistor has failed, as it responds to transitions but there's no DC.

Scope channels themselves are fine.

Is there a secret to taking these probes apart, or are they completely sealed?

This unit's only seen a few days of use, and it sits in a Rigol carry case when not in use with a front panel cover. There's only me uses it too, so I know it's not been mishandled (other than by me!).

jemangedeslolos:
Tautech  :-/O

jundar:
I see it is an old post but maybe someone still can take a look at the photo. Is it some bug in firmware?
The probe are on x1 and all settings are the same expect the 50mV/div vs 51mV/div. Thanks much for any response!!

Fungus:
Not a bug. It's probably switching to a different front-end attenuation/amplifier range when it goes to 50mV.

If that's the case then 51nV will be at the outside limit of the previous range.

MegaVolt:

--- Quote from: jundar on June 21, 2022, 02:51:45 am ---I see it is an old post but maybe someone still can take a look at the photo. Is it some bug in firmware?
The probe are on x1 and all settings are the same expect the 50mV/div vs 51mV/div. Thanks much for any response!!

--- End quote ---
If I'm not mistaken, he can choose from round values 1, 2, 5V .... And he can also set a fractional gain per cell. I don't know how it's implemented. But this is not a mistake. This is a feature.

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