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REVIEW - Rigol DS2072 - First Impressions of the DS2000 series from Rigol

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Teneyes:

--- Quote from: Sparky on August 07, 2013, 02:05:18 am ---Just wanted to post a reminder that this is something to be on the look out for if you hear rattling in your scope!  Obviously not good to have metal pieces loose around in there...

--- End quote ---
Hi Sparky
Sh!t , a rattle in my DS2072, and one retaining clip fell out :--
and another one rattling, I got it near the vent and working on getting that clip out, :-- :--
Now where are the loops??

What will you do?
Fix it w/rebar-wire;D or an RMA??? I have already sent my DSO back Once.
DS2A1425xxxxx

Sparky:

--- Quote from: martinv on August 07, 2013, 03:24:46 am ---Check the fan.  On my scope one of the loose parts stuck to the fan motor and was held there by the motor magnets so shaking didn't dislodge it.

--- End quote ---

Thanks martinv! That's a good suggestion.  The loop could have lodged there, but I didn't see anything when I cleaned the back case.


--- Quote from: SeanB on August 07, 2013, 04:54:49 am ---Very stupid to rely on the solder alone to hold it in the board. At the least I would make a new one out of a paper clip cut in half, pushed through the hole and bent over on the underside before soldering back in the hole.

--- End quote ---

I like this idea SeanB, a paper clip is probably almost an exact fit.  If I repair it myself, I'll go this route!


--- Quote from: Teneyes on August 07, 2013, 03:14:26 pm ---Sh!t , a rattle in my DS2072, and one retaining clip fell out :--
and another one rattling, I got it near the vent and working on getting that clip out, :-- :--
Now where are the loops??

What will you do?
Fix it w/rebar-wire;D or an RMA??? I have already sent my DSO back Once.
DS2A1425xxxxx

--- End quote ---

Hi Teneyes!  I get the feeling this issue is more frequent than first thought!  In your case, it is both retaining springs that have come loose?  I could not get the spring out through the vent and had to take it apart. 

I looked around for my loop and never found it...it could still be in my unit, which is a bit of a worry, or has fallen out.  I'm going with the latter because I inspected pretty thoroughly when I had the case apart.

For now, I'll use it as is.  The heat sinks are held on with thermal adhesive, so I doubt they will fall off in the short term.  But I'm not sure about long term; the springs are there for a reason...

Likely I will RMA it at sometime, but if it is no longer in warranty I'll do the mini rebar = paperclip fix :D

Mine is DS2A1427xxxxx

Good luck getting those loose parts out!

Gecko:
I noticed a bug(?) when decoding RS232 communication with the DS2072:

I have a RS232-like communication, with TX on channel 1 (named DC on the scope) and RX on channel 2 (named DP).
Have a look at the attached screenshots: Serialdecode1.png shows the correct decoding for channel 2 on Decode2-RX. But this only works correctly if Decode2-TX is set to Channel1 (although it only decodes garbage from that because it has an inverse polarity). If I switch Decode2-TX decoding to Channel1 (like in Serialdecode1.png) or switch the Decode2-TX to off, it decodes the RX line wrong.

Has anybody else seen similar problems?

Teneyes:

--- Quote from: Gecko on August 07, 2013, 07:34:05 pm ---I noticed a bug(?) when decoding RS232 communication with the DS2072:


--- End quote ---

@ Gecko
Use RS232 Triggering

Teneyes:

--- Quote from: Sparky on August 07, 2013, 04:49:29 pm ---
--- Quote from: Teneyes on August 07, 2013, 03:14:26 pm ---Sh!t, a rattle in my DS2072, and one retaining clip fell out :--
and another one rattling, I got it near the vent and working on getting that clip out, :-- :--

--- End quote ---

I get the feeling this issue is more frequent than first thought!  In your case, it is both retaining springs that have come loose?  I could not get the spring out through the vent and had to take it apart. 

--- End quote ---

Well, I got 2 springs and 2 hoops out
See pic for fishing tool.
Everyone watch-out

Do I dare turn it on and have the heat sinks fall off?

Has anyone opened a DS2000 and seen any improvement in the spring-clamp anchors?


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