[sdiy] Juno-106 replacement filters

[KRiSh]

**** I'm still investigating on this, probably after completing the
restoration of my beloved Soundtracs FM-16 i'll be back to the Juno and try
to find a correct socket for the easy swaps.


K

2017-11-29 20:22 GMT+01:00 KRiSh <krish0005 at gmail.com>:

> I have a 106 with 1 VCA always "open".
>
> I already replaced all sliders (19 sliders including the Bender ones) +
> all 34 switch to it.
>
> Feels like new now, only that voice is needing repair now.
>
> I have rescued 4 voices from a friend's Juno that are supposed to be
> working (he decided to change all of them with the AnalogReinassance ones).
>
> My intention would be to remove the broken voice, then soak in acetone the
> broken one and the working ones,
> then try to fix the broken one and if not successful then swap it with one
> of the other working ones.
>
> To do this easily, i'd like to find a 12 pin socket that does not require
> the original terminals of the voice cards to be removed and resoldered with
> other terminals compatible with common sockets found around the web while
> looking for solutions on forums videos.
>
> Those sockets have bigger holes than the originals on the board, thus
> needing thicker terminals, but we all know removing and resoldering
> terminals on those voices is potentially dangerous for the integrated
> circuits aside (you don't want to heat them too much...).
>
> Never found discussions about board level resoldering afterward nor about
> death of the voices depending the date code actually:
> if you have links to them please share.
>
> I always thought that the epoxy on the voice modules is causing
> overheating and that is what causes the slow death of the rare unobtaniums
> custom ICs underneath.
>
> I'm still investigating on this, probably after restoring
>
>
>
> 2017-11-29 20:05 GMT+01:00 MTG <grant at musictechnologiesgroup.com>:
>
>> It would be nice to find out what the definitive "fix" is for these,
>> aside from replacement.  I've seen discussions talking about arbitrary
>> acetone soaking.  Other ones discussing the length of time depending on the
>> date code, and yet another discussing that it's not the acetone at all,
>> it's the board level resoldering you have to do afterward.
>>
>> I have an MKS30 waiting for me.
>>
>>
>>
>> On 11/29/2017 10:53 AM, NSSINC wrote:
>>
>>>
>>>      I like fixing stuff. I like the Juno-106. But I have grown tired of
>>> fixing my brother's 106 every few months. We don't even bother calibrating
>>> it anymore.
>>>
>>>      So I'm looking for list members opinions of this guys replacement
>>> filter chips:
>>>
>>> http://www.analoguerenaissance.com/AR80017A/
>>>
>>>      And if anyone in the US has opinions on weather it's better to
>>> order direct or from Syntaur.
>>>
>>>
>>> Thanks!
>>>
>>> -Al
>>>
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>>>
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>
>
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