[sdiy] Juno 60 -- issue..only patch 11?
Bob Weigel
sounddoctorin at imt.net
Thu Apr 8 21:58:07 CEST 2010
Yeah later productions didn't have the problem I guess. Not sure what
they changed but glad Roland remembered. Somehow didn't strike me as
the kind of problem that would have a service bulletin! lol.
My website has supposed numbers produced. Looking... it was 72,000
106's, 30,000 60's and 14,000 6's.
And yeah the 106 did amazingly well alongside the dx7. A lot of other's
analog products didn't fare so well in 1984. Not a lot of Bit one's,
SX240's or AX80's in comparison I don't think. I'm recalling maybe
16000 Poly61? Due to the very low price point the poly800 did well with
100,000 produced. Followed by not too many DW6000 and about 20,000
DW8000's in '86 as the analog realm fizzled for Korg who again followed
Yamaha's success with the M1, using the dx7 movement for it. I've read
like 250000 M1's?
I don't know the specific numbers after the 106 for Roland but I'm sure
probably the alpha junos from what I've seen in the market was similar
in numers to the DW series in sales. The JX8P, 10 and MKS70 maybe a
little more. Roland I think had the most success in maintaining the
analog market with those products til the later 80's. IF ANYONE has
actual numbers I'd love to add them to my pages though. I also have no
numbers on the sequential circuits units produced save the T8 as I
recall.. It's great data for perspective on the era. -Bob
Graham Atkins wrote:
> Well done Bob,
>
> Not an easy one to find. I wonder if they ever did a mod or new board
> to overcome this. It sounds like it could be unreliably on edge much
> of the time.
> I wonder how many Juno 60's Roland sold compared to some of their
> other products. I came close to buying a Juno 6 as it was one of the
> first poly
> synths (Along with the Korg Polysix) that I could afford, but luckily
> the dealer told me the Juno 60 was soon to be released so I waited. I
> assume the
> Juno 106 was the next, but that must have been near the DX7 launch
> which changed the market forever.
>
> Graham
>
> On 8 Apr 2010, at 10:46, Bob Weigel 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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