Rigol DS2000 died - Page 1
Forum section: electronics / repair

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: February 23, 2017, 02:57:26 am
content: So my DS2000 died. POP, smelled something... very carefully looked over the psu + mainboard, nothing out of place, no burn marks etc.the soft power switch cycles so its getting some juice. push it, stays solid, fan comes on.. but nothing else.Im wondering if juice is making it through. I did some poking. In trying to find a dc gnd point I thought, hey start with the black wires on the big molex connector... they had continuity to the chassis.. I tested the -ve where the electrolytic caps are not populated they connect to ac earth too..the dc fan in the psu chassis, its gnd seems not connected to anything I can find, its pulling 9v.I wanted to try and test some voltages but without being able to find a gnd I didnt want to poke too much.There is a big diode labeled "NFC36G B10100 KA" its a "Schottky Barrier Rectifier" its anode pin appears connected to earth too.seems odd to me things are connected to earth, like the caps and stuff.maybe I'm going down the wrong road with this. (all the damn elastomer stuff makes it hard to probe stuff).

author: tautech
author_rank: Super Contributor
timestamp: February 23, 2017, 03:13:22 am
content: Shite, you are in a cactus bush.PSU voltages, repeat PSU voltages first.Is there a Service manual online for these, surely there must be......Try this one:http://www.eyou.com.au/upload_files/Rigol/DS2000%20Performance%20Verification%20Guide.pdfNBGMaybe this:http://guyygv14.consultantsite.info/rigol-ds-2000-service-manual.html(not checked) .rar 256 Mb

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: February 23, 2017, 03:21:34 am
content: thanks, the download link seems a bit dodgy, didnt actually work for me (need some kind of special account).

author: tautech
author_rank: Super Contributor
timestamp: February 23, 2017, 03:28:24 am
content: Quote from: BloodyCactus on February 23, 2017, 03:21:34 amYep, more investigation shows it could well be dodgy.https://www.google.co.nz/search?q=gravenfun&rlz=1C1ASUM_enNZ497NZ497&oq=gravenfun&aqs=chrome..69i57j69i60&sourceid=chrome&ie=UTF-8A manual will turn up, someone will have or find it.

author: tautech
author_rank: Super Contributor
timestamp: February 23, 2017, 03:41:30 am
content: Here's a Torrent file if you are keen:http://www.velikodvor.ru/rigol-ds2000-manual.htmlOld thread:https://www.eevblog.com/forum/testgear/rigol-service-manuals-where-to-find/

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: February 23, 2017, 12:40:58 pm
content: that thread was very interesting thanks!

author: saturation
author_rank: Super Contributor
timestamp: February 23, 2017, 02:47:02 pm
content: Keep us posted on the repair. How old was your unit? Was it bought new?

author: BloodyCactus
author_rank: Frequent Contributor
timestamp: February 23, 2017, 05:36:48 pm
content: yeah it was new, bought in june 2014..

author: JFJ
author_rank: Regular Contributor
timestamp: February 23, 2017, 07:12:10 pm
content: Quote from: BloodyCactus on February 23, 2017, 05:36:48 pmIs it still under warranty?According to aRigol MSO/DS2000A Series Datasheet, the warranty period (in the UK) is 3-years:

author: james_s
author_rank: Super Contributor
timestamp: February 23, 2017, 07:15:57 pm
content: If it was, it's probably not anymore after poking around inside it.This sort of failure is usually fairly straightfoward though, once you figure out where the pop and smell came from you can work backwards from that.