• Roland Juno-G LCD failure and replacement

    From Nightfox@DIGDIST to All on Mon May 9 10:51:24 2022
    I have a Roland Juno-G synthesizer, which I've had for a number of yaers now. I like playing music with it every so often, but in the last few months, I've noticed its LCD display seems to be starting to fail. I've heard LCD failure is a common problem with this model synthesizer. I turned on my Juno-G a few months ago and the LCD was pretty much blank; I tried it again a copule weeks later and it was fine, so it seems it might be an intermittent issue for now (though I suspect its LCD will probably fully fail at some point).

    I've contacted a couple of repair shops, including an authorized Roland repair shop in my area, who have said replacements are hard to come by (as it's an old synthesizer now), and it seems there may be little chance of being able to get it repaired.

    The LCD is an important component on this synthesizer, since it provides information on what sound you're playing, what mode you're in, etc.. It seems my best option might be to buy a new synthesizer. :/ I also have one of Roland's SRX-07 sound expansion boards in it, so I'd hope to find something with a similar sound set and capabilities.

    I'm curious if anyone has experience with Roland synths? I've heard the Roland Juno DS has similar sounds, and Roland now offers SRX sound downloads from their web site. Also it looks like the Juno DS is at about the same price point as the Juno-G was, so perhaps it's aimed at the same target market.

    Nightfox

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  • From Moondog@CAVEBBS to Nightfox on Tue May 10 00:21:00 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to All on Mon May 09 2022 10:51 am

    I have a Roland Juno-G synthesizer, which I've had for a number of yaers now
    with this model synthesizer. I turned on my Juno-G a few months ago and th fully fail at some point).

    I've contacted a couple of repair shops, including an authorized Roland repa

    The LCD is an important component on this synthesizer, since it provides inf ion boards in it, so I'd hope to find something with a similar sound set and

    I'm curious if anyone has experience with Roland synths? I've heard the Rol
    so perhaps it's aimed at the same target market.

    Nightfox


    There's probably several thousand of those LCD panels sitting new in box stuffed in the back of some warehouse in Taiwan or Japan. The other day I spoke with someone who bought surplus items, and found a warehouse full of
    IBM parts from the 1990's.

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  • From Nightfox@DIGDIST to Moondog on Tue May 10 08:56:02 2022
    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Tue May 10 2022 12:21 am

    I have a Roland Juno-G synthesizer, which I've had for a number of

    There's probably several thousand of those LCD panels sitting new in box stuffed in the back of some warehouse in Taiwan or Japan. The other day I spoke with someone who bought surplus items, and found a warehouse full of IBM parts from the 1990's.

    I'm not sure if it's the LCD itself or something else that's failing. I had turned my synthesizer on once and the LCD wasn't showing anything, but a couple weeks later I turned it on and the LCD was working fine. That made me wonder if there may be an intermittent connection failure or something, rather than the LCD itself failing. But then, I suppose the connection failure could be in the LCD and replacing the LCD could fix it.

    Even if there are a bunch of those LCDs stored in a warehouse somewhere, they seem hard to find online to buy..

    Nightfox

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  • From Moondog@CAVEBBS to Nightfox on Wed May 11 01:05:00 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Moondog on Tue May 10 2022 08:56 am

    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Tue May 10 2022 12:21 am

    I have a Roland Juno-G synthesizer, which I've had for a number of

    There's probably several thousand of those LCD panels sitting new in bo stuffed in the back of some warehouse in Taiwan or Japan. The other day spoke with someone who bought surplus items, and found a warehouse full IBM parts from the 1990's.

    I'm not sure if it's the LCD itself or something else that's failing. I had intermittent connection failure or something, rather than the LCD itself fai

    Even if there are a bunch of those LCDs stored in a warehouse somewhere, the

    Nightfox

    Sounds like bad or leaky capacitors. When the caps on the power board on my 42" tv failed, the TV would take time to power up, and the colder it was, the longer it took. I had a large Zenith console TV doing the same thing.

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  • From Nightfox@DIGDIST to Moondog on Wed May 11 09:16:01 2022
    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Wed May 11 2022 01:05 am

    Sounds like bad or leaky capacitors. When the caps on the power board on my 42" tv failed, the TV would take time to power up, and the colder it was, the longer it took. I had a large Zenith console TV doing the same thing.

    Interesting.. Maybe I'll open it up and look for any capacitors that look bad. I bought mine used in 2011, but I think they started making this model around 2006-2008. I seem to remember hearing stories of particularly bad capacitors around that time.

    Nightfox

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  • From Belly@BRAZINET to Moondog on Tue May 10 09:44:55 2022
    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Tue May 10 2022 12:21 am

    There's probably several thousand of those LCD panels sitting new in box stuffed in the back of some warehouse in Taiwan or Japan. The other day I

    My brother and I are both synthheads. I don't have a Juno-G, but he does, and I asked him last night about his. Apparently the LCD issues with those units stem from a factory defect with the original LCDs used, which was addressed by Roland later by offering free repairs. The updated LCDs were available for a while, but stocks have long been depleted. He told me that his was still original, and he managed to make the LCD work "well enough" to be usable, but I don't know the details.


    o
    (O)
    BeLLy

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  • From Nightfox@DIGDIST to Belly on Wed May 11 18:47:40 2022
    Re: Roland Juno-G LCD failure
    By: Belly to Moondog on Tue May 10 2022 09:44 am

    My brother and I are both synthheads. I don't have a Juno-G, but he does, and I asked him last night about his. Apparently the LCD issues with those units stem from a factory defect with the original LCDs used, which was addressed by Roland later by offering free repairs. The updated LCDs were available for a while, but stocks have long been depleted. He told me that his was still original, and he managed to make the LCD work "well enough" to be usable, but I don't know the details.

    It's unfortunate, because other than the LCD in mine, mine still seems to be working okay otherwise. If it really is pretty much impossible to fix, I've considered buying a newer Roland, perhaps a Juno DS. Maybe I can find a deal on a used one.

    Nightfox

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  • From Moondog@CAVEBBS to Nightfox on Wed May 11 22:08:00 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Moondog on Wed May 11 2022 09:16 am

    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Wed May 11 2022 01:05 am

    Sounds like bad or leaky capacitors. When the caps on the power board o my 42" tv failed, the TV would take time to power up, and the colder it was, the longer it took. I had a large Zenith console TV doing the same thing.

    Interesting.. Maybe I'll open it up and look for any capacitors that look b


    Nightfox


    If you see any bulged or leaking, replace it's brothers and sisters of the
    same type. The little smt cans with not bulge, but they will leak a fidhy smelling compund which would eat away at traces and pins. Use a little
    vinegar to neutralize it ebfore re-soldering the cans.

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  • From Belly@BRAZINET to Nightfox on Wed May 11 21:55:24 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Belly on Wed May 11 2022 06:47 pm

    It's unfortunate, because other than the LCD in mine, mine still seems to be

    I don't have any experience with newer Roland synths, except for my JD-Xi (which is a tiny powerhouse!). I do have an old Alpha Juno 1, though. Clunky interface, but nice sounds. A few years ago, I started looking at the Behringer DeepMind 12 as a way to get vintage Juno 60 sounds without the hassle (and expense!) of an aging 80s synth, but even though it begin as a Juno 60 clone, during the design process it evolved into so much more. I had one in my studio within a month. I'm a fan.

    Have ye any other synths? I'd like to hear about others' collections!

    o
    (O)
    BeLLy

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  • From Nightfox@DIGDIST to Belly on Thu May 12 08:21:27 2022
    Re: Roland Juno-G LCD failure
    By: Belly to Nightfox on Wed May 11 2022 09:55 pm

    Have ye any other synths? I'd like to hear about others' collections!

    The only other is a Zynthian (open-source kit-based synthesizer that runs on a Raspberry Pi) that I just recently got (the Zynthian kit just arrived this past Monday):
    https://www.zynthian.org

    Nightfox

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  • From Nightfox@DIGDIST to Belly on Thu May 12 08:48:52 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Belly on Thu May 12 2022 08:21 am

    Have ye any other synths? I'd like to hear about others'
    collections!

    The only other is a Zynthian (open-source kit-based synthesizer that runs on a Raspberry Pi) that I just recently got (the Zynthian kit just arrived this past Monday): https://www.zynthian.org

    Oh, and I also bought a used Roland MT-32 (version 2) from eBay a couple years ago.

    Nightfox

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  • From Moondog@CAVEBBS to Belly on Thu May 12 14:36:00 2022
    Re: Roland Juno-G LCD failure
    By: Belly to Nightfox on Wed May 11 2022 09:55 pm

    Re: Roland Juno-G LCD failure
    By: Nightfox to Belly on Wed May 11 2022 06:47 pm

    It's unfortunate, because other than the LCD in mine, mine still seems to

    I don't have any experience with newer Roland synths, except for my JD-Xi (which is a tiny powerhouse!). I do have an old Alpha Juno 1, though. Clunky interface, but nice sounds. A few years ago, I started looking at the Behringer DeepMind 12 as a way to get vintage Juno 60 sounds without the has (and expense!) of an aging 80s synth, but even though it begin as a Juno 60 clone, during the design process it evolved into so much more. I had one in studio within a month. I'm a fan.

    Have ye any other synths? I'd like to hear about others' collections!

    o
    (O)
    BeLLy


    Whenever I think of old synths, I don't think of DX7's or Rolands. I thnk of those cheesy little Casio portables. Here's an example https://www.youtube.com/watch?v=DM-v3cvX8M4

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  • From Belly@BRAZINET to Nightfox on Thu May 12 19:29:52 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Belly on Thu May 12 2022 08:21 am

    The only other is a Zynthian (open-source kit-based synthesizer that runs on https://www.zynthian.org

    I looked that up, and it looks pretty neat. I might have to scavenge one of my Pis from its current home and try it out. The Oberheim OB-X emulation sounds quite enticing.


    o
    (O)
    BeLLy

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  • From Belly@BRAZINET to Moondog on Thu May 12 19:33:30 2022
    Re: Roland Juno-G LCD failure
    By: Moondog to Belly on Thu May 12 2022 02:36 pm

    Whenever I think of old synths, I don't think of DX7's or Rolands. I thnk o those cheesy little Casio portables. Here's an example

    I used to have something similar when I was a kid. It might have even been a Casio :)

    o
    (O)
    BeLLy

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  • From MRO@BBSESINF to Nightfox on Wed May 11 12:29:14 2022
    Re: Roland Juno-G LCD failure
    By: Nightfox to Moondog on Wed May 11 2022 09:16 am

    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Wed May 11 2022 01:05 am

    Sounds like bad or leaky capacitors. When the caps on the power board on my 42" tv failed, the TV would take time to power up, and the colder it was, the longer it took. I had a large Zenith console TV doing the same thing.

    Interesting.. Maybe I'll open it up and look for any capacitors that look bad. I bought mine used in 2011, but I think they started making this model around 2006-2008. I seem to remember hearing stories of particularly bad capacitors around that time.

    Nightfox

    https://en.wikipedia.org/wiki/Capacitor_plague
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  • From Moondog@CAVEBBS to MRO on Wed May 18 22:44:00 2022
    Re: Roland Juno-G LCD failure
    By: MRO to Nightfox on Wed May 11 2022 12:29 pm

    Re: Roland Juno-G LCD failure
    By: Nightfox to Moondog on Wed May 11 2022 09:16 am

    Re: Roland Juno-G LCD failure
    By: Moondog to Nightfox on Wed May 11 2022 01:05 am

    Sounds like bad or leaky capacitors. When the caps on the power boar on my 42" tv failed, the TV would take time to power up, and the col it was, the longer it took. I had a large Zenith console TV doing th same thing.

    Interesting.. Maybe I'll open it up and look for any capacitors that loo bad. I bought mine used in 2011, but I think they started making this mod around 2006-2008. I seem to remember hearing stories of particularly bad capacitors around that time.

    Nightfox

    https://en.wikipedia.org/wiki/Capacitor_plague

    2002-2003 was the prime plague years, but some companies kept using whatever stock they had left for the next 3 or 4 years.

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  • From MRO@BBSESINF to Moondog on Wed May 18 23:06:18 2022
    Re: Roland Juno-G LCD failure
    By: Moondog to MRO on Wed May 18 2022 10:44 pm

    https://en.wikipedia.org/wiki/Capacitor_plague

    2002-2003 was the prime plague years, but some companies kept using whatever stock they had left for the next 3 or 4 years.


    yeah that's money. they wont dump their stock and rebuy anything unless they absolutely have to. and at my old employer the workers were real shady. when making repairs they would scavenge in the recycling area instead of pulling new parts.
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