[sdiy] Elektron

[Mattias Rickardsson]

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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>
>
> --
> Jean Bender
>
> Hak Lofi Record
>
> ELECTRON CANON
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