[sdiy] Elektron

[Mattias Rickardsson]

Great to hear!
Have fun with your new little superdrummer! :-)

/mr


On 11 January 2014 17:38, Jean Bender <lofideadbeat at gmail.com> wrote:
> Hi !!
>
> I'm sorry for answering so late. Well, i think i made some mistakes in
> my measures. But at the end, i found what was wrong. One of the
> schottky diode wasn't ok. I change it, it was better, and then.. i
> realised that the fuse was also not so good. I tested it, and seemed
> to be ok, but it didn't let current pass through it all the time. Not
> burnt, but not functionnal.. At the moment, i bypassed the fuse, cause
> i don't have one at home.
> Once bypassed, everything work. So i'm happy, just need to replace
> this last component, and it'll be ok !!
>
> Thanks for your help, cause your tricks helped me a lot to find what was wrong.
> Cordially !
> Jean
>
> 2014/1/10 Mattias Rickardsson <mr at analogue.org>:
>> Hi again Jean,
>>
>> 23 V sounds almost impossible. Are you sure that you measure this
>> voltage towards Analog Ground? If measured towards something else, it
>> can show just about any value. Analog Ground and Digital Ground are
>> floating towards each other when the PSU board is disconnected from
>> the rest of the machine.
>>
>> /Mattias
>>
>>
>> On 8 January 2014 14:56, Mattias Rickardsson <mr at analogue.org> wrote:
>>> Oh, that sounds weird... I can't think of any immediate cause for
>>> that, unless your measurements are mistaken.
>>>
>>> /mr
>>>
>>>
>>> On 4 January 2014 17:55, Jean Bender <lofideadbeat at gmail.com> wrote:
>>>> OK !!
>>>>
>>>> i had a prooblem with one of my schottky diodes..  So now i can have
>>>> my 3,3v DC output, and my 5v output. Great.
>>>> But i still have a problem somewhere : If i can get my 8v out, i don't
>>>> have -8v, it's more -14v... I've tested the 7908 input, and it gets
>>>> ... 23v ??? still weird. Would the 12v transformer failled in a way or
>>>> another ?
>>>>
>>>> I will get it back... i really hope so !
>>>>
>>>> 2014/1/2 Gordon JC Pearce <gordonjcp at gjcp.net>:
>>>>> On Thu, Jan 02, 2014 at 12:41:37PM +0100, Jean Bender wrote:
>>>>>> Well, i've measured again everything, but no way, i can't get any DC
>>>>>> current anywhere. I just can trace the AC voltage, which goes.. almost
>>>>>> every where !! It's really strange. I don't have +12v on C15, and no
>>>>>> VDC on C8 & C21...
>>>>>>
>>>>>> I don't know how to check the schotky diodes. The current doesn't seem
>>>>>> to be rectified.. Maybe one of them is dead ? Or would the 10 000 uf
>>>>>> cap could cause such a problem if it was deffective ?
>>>>>>
>>>>>> Thanks for the help !!
>>>>>
>>>>> It could be that the rectifier has failed, in which case I'd change the smoothing capacitor for good measure.
>>>>>
>>>>> That's about the only time you'll ever see a genuinely faulty electrolytic, outside of cheap crappy switched-mode power supplies.
>>>>>
>>>>> --
>>>>> Gordonjcp MM0YEQ
>>>>>
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>>>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>>
>>>>
>>>>
>>>> --
>>>> Jean Bender
>>>>
>>>> Hak Lofi Record
>>>>
>>>> ELECTRON CANON
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>>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>
>
> --
> Jean Bender
>
> Hak Lofi Record
>
> ELECTRON CANON