The Official Sequential/Oberheim Forum
SEQUENTIAL/DSI => Prophet => Prophet Rev2 => Topic started by: Antonino on May 14, 2018, 11:55:04 PM
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Hi, I'm Antonio from Italy.
two weeks ago, I contacted DSI support because I had the classic encoders problem.
They recommended a swap of the boards.
I installed the new boards and these work worse, the encoders jump continuously.
I wrote all this to DSI support and sent a video.
They tell me that everything is normal and that the boards are checked and verified before being shipped.
I've sent more videos in which other encoders jump continuously but DSi support no longer responds to my emails.
I reassembled the old boards, they work much better.
How is this possible? The DSI support left me alone.
Do I have to sell my REV 2?
I'm sad.
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Hey Antonio,
Have you updated the firmware of your Rev2 as well ? The newest versions corrected that issue a while ago. Also, keep in mind that the encoders work exponentially : if you scroll faster, it’s going to jump a bigger amount of values. If you scroll slowly, it should scroll steadily through the values.
I recommend to download the last firmware update and report back.
Hope that helps ;)
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yes, my version is the last one.
The thing that makes me angry is that old boards work better.
so I think it's a quality problem for the encoders.
But I DSI service no longer responds.
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Hello Antonino.
I also had problems with the encoders on my REV2, and it was fixed by replacing both front panel boards.
It has happened once that DSI support took a little longer to reply to my emails, because the guy responsible for my case was sick (which I didn't know at the time). A few days later he responded and apologized for the delay explaining why.
The DSI support team is made up of a small group of human beings that are dedicated and eager to help customers anyway they can.
So if it sometimes take a little longer to get replies from them, just be patient. I'm sure that you'll eventually get one.
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The problem is that I have already changed the boards.
even the new ones have problems, the encoders jump all. I had to put old boards back to limit the problem.
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If I am not mistaken, there is another forum member who has had the exact same experience as you, with the replacement boards being worse than the defective ones. I think everything turned out okay in his case...
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Very similar, if not exact same, experience. Two different boards, second one being worse. Firmware updated and all. Initial reply from support was " Although the encoders on the Rev2 are within specification..." and then they continue to explain (technically) why I'm having the issue ... which they are saying is "within specification." So in the end, it's that they are OK with this issue. Blunt, but seems the case
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I think I’m having the issue too. My resonance knob is jumping all over the place. What do I do?
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I'm sorry you're experiencing issues with your Rev2. The best course of action is to contact our dedicated support channel:
support (at) davesmithinstruments.com
We will get you back up and running right away.
Thanks!
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I think I’m having the issue too. My resonance knob is jumping all over the place. What do I do?
Had the same issue with osc slop. Advised to turn it all the way around about 150 times. Actually worked, so give it go.
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Yes, but lot of tipical problems are with the encoders...
Osc slop is potentiometer :)
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Yes, but lot of tipical problems are with the encoders...
Osc slop is potentiometer :)
The same principle applies for both. The idea is that by rotating vigorously several times the oxidation that might have occured will be partly cleaned by friction of the potentiometer/rotary encoder wiper rubbing against the carbon trace/contact points inside. It's not a definitive solution nor is it a guaranteed success at cleaning the oxidation. Sometimes it might even be the silicon lubricant that makes the potentiometer/encoder shaft turn smoothly that will "leak" down onto the surface contacts inside (bad quality component). And in that case, no amount of turning will fix that. The only solution would be to open the potentiometer/encoder and thoroughly clean the contact surfaces, or to replace the device entirely with a new one.
That's coming from 30 years experience as an electronics hobbyist.
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Yes, but lot of tipical problems are with the encoders...
Osc slop is potentiometer :)
The same principle applies for both. The idea is that by rotating vigorously several times the oxidation that might have occured will be partly cleaned by friction of the potentiometer/rotary encoder wiper rubbing against the carbon trace/contact points inside. It's not a definitive solution nor is it a guaranteed success at cleaning the oxidation. Sometimes it might even be the silicon lubricant that makes the potentiometer/encoder shaft turn smoothly that will "leak" down onto the surface contacts inside (bad quality component). And in that case, no amount of turning will fix that. The only solution would be to open the potentiometer/encoder and thoroughly clean the contact surfaces, or to replace the device entirely with a new one.
That's coming from 30 years experience as an electronics hobbyist.
Thanks for this, Alain
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Thanks for this, Alain
You're welcome. :)
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No more answers after two weeks.
I sent another email by opening another request, no reply.
Maybe there is a black list mail or do not answer because I'm Italian from Sicily.
I do not know what to think. :'(
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Did you try calling them on the phone?
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I did not call by phone because I do not speak English well.
this situation made me sad.
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Antonio, is there any possibility that you may be able to return your defective REV2 for another REV2 from the store where you purchased it?? As I’m certain not all REV2 has these issues, mine has no problems I just adore it.
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I did not call by phone because I do not speak English well.
this situation made me sad.
Ciao Antonio, come è finita poi la faccenda? Io ho avuto un problema, meno grave del tuo, con il mio rev2, e me lo hanno risolto immediatamente. Era alla mod wheel e me ne hanno mandata una nuova da sostituire in pochi giorni. Nel mio caso hanno risolto molto velocemente, quindi non credo abbiano pregiudizi sugli italiani.... Forse la soluzione può essere rivolgersi al negozio dove l'hai comperato, di sicuro è ancora in garanzia.
Spero che tu risolva, e se posso aiutarti lo farò volentieri, adoro questo strumento e credo valga la pena di averlo perfettamente funzionante, e dalla mia esperienza ho avuto l'impressione che DSI dia un buon supporto ai clienti.
Ciao e buona giornata.
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Grazie della tua disponibilità, alla fine dopo varie attese ho sostituito le Boards per la seconda volta, stessi problemi, ho mandato i video che dimostravano tutto, e nulla, per loro è normale.
Mi arrabbio perché dico: cioè ma se all’inizio mi dite che è un problema il fatto che gli encoder saltano, com’è che ora che saltano il doppio è tutto normale?? Boh...
comunque ho visto che girando molto lentamente funzionano normalmente quindi sarà un problema di software o non so più cosa.
A mio avviso hanno sbagliato qualcosa sulla compatibilità di questi encoder , sul Prophet 08 quelli della II generazione erano ottimi davvero.
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...comunque ho visto che girando molto lentamente funzionano normalmente quindi sarà un problema di software o non so più cosa.
(however I saw that turning very slowly work normally so it will be a software problem or I do not know what anymore.)
Hello Antonino.
The encoders on the REV2 have a software "accelleration" feature that will skip many values when the encoders are turned quickly. It is to allow to cover a wide range of values quickly instead of turning the encoder many many times.
It is a permanent feature and cannot be disabled.
However, the encoders should go up, or down, by only one value per click when turned slowly. If they don't they're malfunctionning.
Hope this helps.
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I agree, but in order not to skip any value my encoders must be turned very slowly.
In the first boards only one encoder jumped the values and very rarely. for this reason I wonder what was the need to get me a swap of the boards twice if the new ones work worse?! ...
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Encoder response has been
removed improved in the latest available BETA OS version. The 1.1.4.4 OS version can be found at the following link:
https://forum.davesmithinstruments.com/index.php/topic,1531.0.html
Thanks!
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Encoder response has been removed in the latest available BETA OS version. The 1.1.4.4 OS version can be found at the following link:
https://forum.davesmithinstruments.com/index.php/topic,1531.0.html
Thanks!
So no encoders at all now? :o ;D
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Ah! my bad, meant to say improved!
Thanks for the heads up!
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Just finished updating and, man, what a HUGE improvement ! I've spend about 10 minutes trying my best to have one of the encoder skip a value, but I couldn't. They all work absolutely flawlessly now, FINALLY!
So I guess the culprit was probably that software acceleration feature that was maybe too sensitive, so that when an encoder was occasionally a little scratchy between two contacts, the software thought mistakenly that the encoder was turned rapidly, or something like that, and skipped a few values ?
Anyway, a big thank you ! It's like having a whole new instrument !
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I can not believe it!!! Now everything is super perfect !!!! I'm excited!!!! Thank you so much!!! ;D
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I can not believe it!!! Now everything is super perfect !!!! I'm excited!!!! Thank you so much!!! ;D
Ah good the bad adventure is turning out to be a good one ;)
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how do I write (solved) in the post title?
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How do I write (solved) in the post title?
I've added the word "Solved."