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REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol
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CustomEngineerer:
I was using my Rigol DS2072A-S tonight and noticed what seems to be a bug. At the time I noticed it I was running the 00.03.03.02.06 (aka 00.03.03SP2) that was release in June 2015. When the Trigger->Coupling is set to AC or LFReject the temporary line that shows where the trigger level is at when adjusting it does not show up. If Trigger->Coupling is set to DC or HFReject it shows up. I tried resetting the scope, setting AUTO, running the Auto calibration as well as changing various settings but nothing else seemed to make a difference. Finally I went ahead and updated to the 00.03.04.01.00 firmware that was released a couple of days ago hoping maybe it was something that had been fixed (assuming it really is a bug). I am still seeing the same behavior. I can't say when this behavior started (again, assuming it is a bug) but tonight was the first time I had noticed it. I generally use one of the other 2 places on the screen that actually shows the numerical value of the trigger level while adjusting and don't ever really change the Trigger->Coupling setting so its possible it has always been this way.

AC Trigger Coupling with no trigger level line.


LFReject Trigger Coupling with no trigger level line.


DC Trigger Coupling with visible trigger level line.


HFReject Trigger Coupling with visible trigger level line.
Godzil:
As far as I know, not showing the trigger bar in trigger AC coupled is normal, as it would not mean anything.

Can't remember the vids, but Dave speak about that in one of his video.

For LFReject I don't know if this si normal, but as we remove the low frequency part it would make sense, as the DC component is "low frequency".

Here is the video:

DG5SAY:

--- Quote from: Muxr on October 17, 2015, 01:08:32 am ---I just received a 03.04.01.00 for my DS2000, haven't tried it yet.

http://rev.muxr.org/rigol/DS2000Update.zip


--- End quote ---

I´ve done the update with this latest firmware (03.04.01.00) on my DS2072A (HW 2.0), an what should I say: no more lockup so far I can say!  :-+

I hope not that someone else finds new errors.  :phew:
Mosaic:
Regarding that FW update...there's a way it can brick the scope.

https://www.eevblog.com/forum/testgear/ds2072a-full-300mhz-all-options-upgrade-plus-bricking-unbricking/
marmad:

--- Quote from: Mosaic on October 18, 2015, 05:54:35 pm ---Regarding that FW update...there's a way it can brick the scope.

https://www.eevblog.com/forum/testgear/ds2072a-full-300mhz-all-options-upgrade-plus-bricking-unbricking/

--- End quote ---

It's not possible to brick the DSO - it has a bootloader. The guy that wrote the mistitled post you linked to is using the term incorrectly because he didn't understand how to load new FW correctly. He goes on to say how he "unbricked" it in 3 minutes. Sorry, but that's not "bricking/unbricking" - that's realizing you updated the FW incorrectly, then doing it the way Rigol tells you to do it.
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