DS2072 boot failure - Page 1
Forum section: electronics / testgear

author: jc101
author_rank: Frequent Contributor
timestamp: April 07, 2014, 10:05:08 pm
content: Hi,I have a DS2072, original version, been running very happily for ages. Had everything unplugged today to do some tidying up and on putting it all back I find the scope won't boot.I powers on, displays the Rigol Logo but the series of dots/squares which were there don't appear. It just sits there, fan running, all the lit buttons lit up. I tried the boot loader recovery as per post 2, it flashes away for a bit but the problem remains. Also tried it the 6th switch on the left held in, still no joy.Open to suggestions. Fairly annoyed if it is seriously unwell, it was a year old about a week ago....

author: Galaxyrise
author_rank: Frequent Contributor
timestamp: April 07, 2014, 10:17:13 pm
content: Since you just moved it around, I'm reminded of the loose heatsink issue (https://www.eevblog.com/forum/testgear/first-impressions-and-review-of-the-rigol-ds2072-ds2000-series-dso/msg176746/#msg176746)

author: jc101
author_rank: Frequent Contributor
timestamp: April 07, 2014, 10:31:21 pm
content: Galaxyrise, Ah, interesting, I forgotten about that....After much squinting with a torch it seems they are all still intact. At least the print clips are still holding the heat sinks anyway. Although if I hold it screen up and tip it side to side (a bit like you do with a toner cartridge when eking out the last of the toner) there is a 'click' from somewhere inside.Back on the bench and still no joy

author: GiskardReventlov
author_rank: Frequent Contributor
timestamp: April 09, 2014, 01:23:42 am
content: Quote from: Teneyes on April 08, 2014, 08:41:36 amDo they repair yours and send it back or do they send a new one? Just curious what the turn around time is from Rigol.p.s. in videos on Rigol site they pronounce Rigol Ree-gull, I hear in other vids pronounced Rye-goal.Rigol wanted the name to sound regal I guess.

author: Teneyes
author_rank: Frequent Contributor
timestamp: April 09, 2014, 01:47:32 am
content: Quote from: GiskardReventlov on April 09, 2014, 01:23:42 amIt was repaired and sent back. Here in the USA, I got a prepaid shipping label, And Shipped by truck 2200 miles to Rigol,then 36 hour @ RIgol and shipped back 2200 miles 8 days. Never new ( replaced parts)

author: GiskardReventlov
author_rank: Frequent Contributor
timestamp: April 09, 2014, 02:00:40 am
content: Quote from: Teneyes on April 09, 2014, 01:47:32 amNot to read too much into it but I think it's a good sign that they repair them instead of just sending a new one. Did they say what the issue was? Or do you know?

author: Marc M.
author_rank: Regular Contributor
timestamp: April 10, 2014, 02:34:05 am
content: My DS2072 started acting up about 6 months ago (spurious noise on both channels - ampiitude independent of front end attenuator). Initially RigolNA wanted me to pay for shipping to them, but sent a prepaid label after I sent them an e-mail pointing out my other Rigol purchases.Turn around was about 2 weeks. In my case, they did not repair the board, they replaced it. When I got it back, the S/N displayed in extended info was reset to ..001 and one of the flip down feet were missing. I contacted RigolNA who were very apologetic and mailed me 2 replacement feet and a replacement warranty sticker since the case had to be separated to install the feet.They also confirmed that the boards are typically swapped out with repaired boards which led to the S/N corruption. They further stated that the corrupted S/N would not be an issue should there be any further warranty work required. I was able to correct the S/N using the utility I posted a while back in the 'Sniffing..' thread. Overall, their customer support was great.

author: jc101
author_rank: Frequent Contributor
timestamp: April 10, 2014, 08:01:51 am
content: Just an update, it's back. I was sent a document detailing the reset, I was counting the menu button as one of the left hand buttons, powering on and rapidly pushing the correct button seemed to do the trick, it took a few seconds of seemingly doing nothing before the beep then it started to boot up.All seems to be working, just don't know why it did that.

author: miguelvp
author_rank: Super Contributor
timestamp: April 10, 2014, 08:07:26 am
content: Quote from: jc101 on April 10, 2014, 08:01:51 amThanks for letting us know, if mine ever gets in that state it's good to know that an on power reset will deal with it.Or did you have an update on the USB when you did the on power reset to restore the system?

author: jc101
author_rank: Frequent Contributor
timestamp: April 10, 2014, 08:22:29 am
content: Quote from: miguelvp on April 10, 2014, 08:07:26 amNothing plugged in, I had also removed the network from the back. I tried to see if I could 'talk' to it through the various interfaces but they were dead too.There is a chance it is still iffy, possibly with a faulty flash or something like that with the reset swapping to an alternate set? Time will tell, I had it unplugged again for half an hour to see if I could provoke the same issue but it booted up OK. I did need to run the self calibration, as with CH1/CH2 displayed and zero'd they were way out, set at 1v a division they were about an inch apart and neither on 0v. Once that had run though things were OK again.I have a quiet week this week, hence the time to have a bit of a tidy up, so will look to sit down and check it over later. The only thing out of the ordinary was physically powering the unit off and moving it.

author: GiskardReventlov
author_rank: Frequent Contributor
timestamp: April 10, 2014, 03:22:52 pm
content: Quote from: jc101 on April 10, 2014, 08:22:29 amI wonder if there's any logging that takes place on these devices. It sounds like file system corruption after it didn't shut itself down properly. What storage medium is used in these? You mentioned flash. Do they use SSD or eMMC or ??The delay on boot must have been the time to reflash itself. Was it at factory defaults when it came back?

author: jc101
author_rank: Frequent Contributor
timestamp: April 10, 2014, 04:21:14 pm
content: Quote from: GiskardReventlov on April 10, 2014, 03:22:52 pmFrom the teardown videos there is no removable storage, just the soldered on flash chips. I was meaning storage for holding settings and such rather the core OS. It wasn't true factory default, it had remembered some things, but the likes of the probe x setting was wrong and the calibration was way out. I was wondering if it has an area of memory where it keeps this data, which if it gets into a certain state prevents boot. The reset tells it to ignore this area, or use an alternate copy.Just glad it's working TBH, they said it might be a few weeks to turn it around if it had to go back.