[sdiy] Juno 60 -- issue..only patch 11?
cheater cheater
cheater00 at gmail.com
Thu Apr 8 12:17:38 CEST 2010
Funny. So it's fixed?
I guess you were very right about the 'parts machine' thing :-)
Cheers
D.
On Thu, Apr 8, 2010 at 11:46, Bob Weigel <sounddoctorin at imt.net> wrote:
> The problem was one Spook recalled. There was actually a bulletin about
> interconnect problems on early ones where the 5V would get drug down to the
> marginal zone on that board resulting in some bizarre behavior. I thought
> it might be something like that and figured it must be related to the number
> of segments lit on the displays...however it had no correlation. Some with
> MORE segments were stable while ones with fewer lit were unstable. Go
> figure. They didn't understand it either but resoldering/cleaing i/c on
> power supply board corrected the problem. Volatage was within technical spec
> at 4.86V on that board I believe. quite strange. -Bob
>
> Bob Weigel wrote:
>
>> you see what they're going for of late? :-) One sold for 1100 the other
>> day and I just sold another for 900 that had a few low profile scuffs. The
>> membrane switches are the same type as the cheap yamaha ce20 uses... -Bob
>>
>> cheater cheater wrote:
>>
>>> Ugh. If anything, sounds like a parts machine. Think if it's worth
>>> your headache.
>>>
>>> D.
>>>
>>> On Fri, Apr 2, 2010 at 11:54, Bob Weigel <sounddoctorin at imt.net> wrote:
>>>
>>>>
>>>> Hey all thanks for the thoughts. I actually discovered after replacing
>>>> memory chips to no avail that there are intermittent results hitting
>>>> some
>>>> other buttons. In fact it seems 1, 4, 7 on the bottom will get a
>>>> response
>>>> and if I get 4 up on the banks..then *all but 8* will work! So I think
>>>> we
>>>> have a combination of bad buttons and possibly a bad data line or
>>>> something
>>>> here. The buttons measue several hundred ohms and I was thinking they
>>>> were
>>>> the tacticle ones and hit some deoxit on one. Bad mistake. THey're the
>>>> kind with carbon/silicon rubber in a tiny little disk. My contact disks
>>>> barely fit int he hole there but the one I sprayed swelled a bit and in
>>>> trying to get it back in the hole a delicate stretch of it cracked on
>>>> top.
>>>> Arghh. I'm trying to recall what else used those that I might have
>>>> scrap.
>>>> I've seen them before in something else. I'll sleep on it.
>>>>
>>>>
>>>> Ryan Powers wrote:
>>>>
>>>>
>>>>>
>>>>> I've owned a few of these - if there are any power issues, the board
>>>>> will
>>>>> reset to the manual patch - sometimes it is external - like having a
>>>>> space
>>>>> heater plugged into the same outlet.
>>>>>
>>>>>
>>>>> On Apr 1, 2010, at 2:57 PM, cheater cheater wrote:
>>>>>
>>>>>
>>>>>>
>>>>>> That's a crazy bug if i've seen one. Staying tuned, this will turn out
>>>>>> interesting.
>>>>>>
>>>>>> On Thu, Apr 1, 2010 at 21:40, Bob Weigel <sounddoctorin at imt.net>
>>>>>> wrote:
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Very peculiar. Has anyone ever seen it where you punch in a patch
>>>>>>> and
>>>>>>> it
>>>>>>> just reverts to manual mode after a brief flash of the patch number
>>>>>>> you
>>>>>>> are
>>>>>>> selecting maybe? patch 11 works..its the only one of all the
>>>>>>> buttons
>>>>>>> I've
>>>>>>> tried so far. If it's bad memory chips I have a lot of them :-).
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>
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>>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>>
>>
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>
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