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Juno 106 versions MIDI Processors
Old 8th September 2011
  #1
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blinky909's Avatar
Juno 106 versions

i noticed something recently that i hadn't noticed before on my Juno 106. the Portamento switch is like that found on the 101, a thin silver tab vs. the gray block lever. i opened up the unit to find two chips that are not in later models.

can someone shed some light on the 106 versions?
Old 8th September 2011
  #2
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lain2097's Avatar
No definitive info but I had a 106 with the grey plastic switch - never had a problem with its voices either. I always assumed Roland simply used up their stock of silver switches and switched to plastic.
Old 8th September 2011
  #3


I never noticed that before... Thought I had two with greyswitches, but I have one of each.

The Silver switch unit has bad voices and is waiting a chip implant.
Old 8th September 2011
  #4
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blinky909's Avatar
Quote:
Originally Posted by kazper View Post


I never noticed that before... Thought I had two with greyswitches, but I have one of each.

The Silver switch unit has bad voices and is waiting a chip implant.
i never noticed and i've had this Juno for some time now - my first one had the gray flat knob.
Old 8th September 2011
  #5
I got the one with the silver switch cheap, and it had a bad voice. I was buying a house at the time so It's been shelved since waiting on extra cash for a set of chips from analoguerenaissance.

What chips did you notice as extra?

Roland is fairly good in there documentation and they probably show up in there revision notes.
Old 8th September 2011
  #6
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The 106 over it's production span had different revisions of the CPU board and the channel board. Some chorus boards need to be modified to fit with some channel boards. CPU boards had different EPROM configuration versions.
Old 8th September 2011
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blinky909's Avatar
Quote:
Originally Posted by triez View Post
The 106 over it's production span had different revisions of the CPU board and the channel board. Some chorus boards need to be modified to fit with some channel boards. CPU boards had different EPROM configuration versions.
my current 106 has the two extra EPROM's that later version do not have.
Old 20th September 2011
  #8
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Synthasy2000's Avatar
 

Quote:
Originally Posted by kazper View Post


I never noticed that before... Thought I had two with greyswitches, but I have one of each.

The Silver switch unit has bad voices and is waiting a chip implant.
Hmmmm...that's my Juno 106 from my website:

VOYNICH - intelligent synthetic music

Actually I put the silver tab on top of the switch myself. When I got my Juno 106, the cap was missing. I had the silver cap lying around from another project and it fitted a treat and looked the part too.

My Juno had two faulty filter chips which I replaced with new old stock ones. One of the faulty filter chips went off to the US guy who successfully restored it with the Acetone method.

Possible Repair Technique for the 80017a, the Juno-106 Voice Chip - YouTube
Old 20th September 2011
  #9
I just googled Juno-106 and looked for the best picture with the silver knob after Blink brought it up. Thats a great picture and it shows a silver knob. I thought it looked different but I didn't compare the picture to mine.
Old 21st September 2011
  #10
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Synthasy2000's Avatar
 

I hope I didn't come across as stroppy about the use of the picture. I'm not bothered about that. It's that looks can be deceiving now that Juno 106s are 27 years old now. They can't all still be original spec now.

The MSQ-100 sure looks good sitting on top of a Juno 106 though
Old 21st September 2011
  #11
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blinky909's Avatar
here is the silver switch on my now former Juno 106. it was standard.

http://asciibaron.dyndns.org/gearslu...no106_left.jpg
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