[sdiy] Juno 60 -- issue..only patch 11?

[Bob Weigel]

Yeah worked great after pulling the PS board and resoldering and 
cleaning the i/c for 5V and grounds. -Bob

cheater cheater wrote:

>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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>>>
>>>
>>>      
>>>
>
>
>  
>