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EEVblog => Other Blogs => Topic started by: Hugoneus on April 23, 2015, 04:07:17 pm

Title: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: Hugoneus on April 23, 2015, 04:07:17 pm
Enjoy:

Watch the video here: [40 Minutes]
http://youtu.be/UPSLgY_-4HE (http://youtu.be/UPSLgY_-4HE)

More videos at The Signal Path:
http://www.TheSignalPath.com (http://www.TheSignalPath.com)
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: embeddedbob on April 23, 2015, 06:06:02 pm
Broken eBay check list:
1 Is there any damage?
2 Are there any scorch marks?
3 Does anything get hot? <-- Bingo  :-+
4 ...etc

Nice unit to have around.
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: Len on April 23, 2015, 06:54:47 pm
It's not YouTube unless there's a cat!
You should add him here: Cats of Engineering (https://www.adafruit.com/catsofengineering)

Quote from: embeddedbob on April 23, 2015, 06:06:02 pm
Nice unit to have around.
I don't think Shahriar is ever more than two steps from a spectrum analyzer, I don't see why he needs a portable one.   :-//
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: dadler on April 23, 2015, 07:51:01 pm
I'll admit that when the video was nearing the end and you had not yet swapped the SRAM, I thought it would be a lost cause. Excellent to see that you managed to entirely fix it via intuition!
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: vaualbus on April 23, 2015, 09:38:30 pm
So in this time you are in software problem: this specturm analyzer and the Agilent scope that I read in somewhere in the blog. At the end have you menaged to restore also the Agilent scope?
Anyway amazing video like always!
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: mikeselectricstuff on April 23, 2015, 09:50:22 pm
I took apart a very similar unit a while ago, including the RF Voodoo area
Anritsu spectrum analyser teardown (https://www.youtube.com/watch?v=eyA2lWQrxwg#ws)
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: embeddedbob on April 24, 2015, 11:29:28 am
Quote from: Len on April 23, 2015, 06:54:47 pm
It's not YouTube unless there's a cat!
You should add him here: Cats of Engineering (https://www.adafruit.com/catsofengineering)

Quote from: embeddedbob on April 23, 2015, 06:06:02 pm
Nice unit to have around.
I don't think Shahriar is ever more than two steps from a spectrum analyzer, I don't see why he needs a portable one.   :-//

I cant speak for Shahriar but I find lugging an expensive full size Agilent analyser around a pain for simple tasks and testing of RF designs. Not to mention the cost of analysers that go up to 7GHz being left in the boot of a car...etc. So, Nice unit to have around.

Quote from: mikeselectricstuff on April 23, 2015, 09:50:22 pm
I took apart a very similar unit a while ago, including the RF Voodoo area

LOL at the ending  ;)

Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: Hugoneus on April 24, 2015, 03:07:12 pm
The main advantage of the portable one is being able to easily use it outdoor hunting for signals! Now if I could only get one that goes up to 77GHz in a portable form factor I could look for all those automotive radars! :)
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: BFX on April 24, 2015, 04:48:57 pm
Quote from: mikeselectricstuff on April 23, 2015, 09:50:22 pm
I took apart a very similar unit a while ago, including the RF Voodoo area
Anritsu spectrum analyser teardown (https://www.youtube.com/watch?v=eyA2lWQrxwg#ws)

Nice END  :-DD  :-+


Hugoneus : again very nice video but you are lucky man , always some not very complicated issue  8)
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: Hugoneus on April 24, 2015, 06:48:29 pm
Quote from: BFX on April 24, 2015, 04:48:57 pm
Hugoneus : again very nice video but you are lucky man , always some not very complicated issue  8)

Always?  O0
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: dadler on April 24, 2015, 07:43:31 pm
Usually it's some complicated issue - like blown custom ASICs.
Title: Re: Video Teardown, Repair and Analysis of an Anritsu MS2721A Spectrum Analyzer
Post by: HighVoltage on April 25, 2015, 03:24:38 pm
Always something really nice to learn from you!
Thanks for another great video and repair.