[sdiy] Roland Jupiter 6 issues

[Adam (synthDIY)]

When you say "Patch led" are you referring to the Patch Preset LED?
I don't own a JP6 but on the JP8 Roland employ a potentially confusing terminology, and I think they persisted with the JP6:
A "patch" is a single memory slot containing the synth voice parameters for VCO VCF VCA etc.
A "Patch Preset" is a special memory that holds two such patches along with their voice assignments/splits/glide etc

A

> On 8 Aug 2024, at 12:24 PM, al spitzley via Synth-diy <synth-diy at synth-diy.org> wrote:
> 
> A quick question for Tony. When you say to program all the patches with an Init patch are you referring to that the Factory patches with the Patch led lit?
> Cheers 
> Al
> 
> 
> Sent from Yahoo Mail for iPhone <https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_>
> 
> On Wednesday, August 7, 2024, 2:08 PM, al spitzley <kogz23 at yahoo.com> wrote:
> 
> Thanks for the ideas.
> I tried cranking the gain and no luck. Different results each time. Aargh!
> When it “freezes” with the Tape button lit it will not go into load. The only way to get out of it is to hit the Tape button. Occasionally it completely locks up and I have to restart.
> I’m having issues saving to the factory patch area. If I create a patch on A1, save it, create a different one on A2 (for example) it will save but also save into A1 or any previous patches I’ve just created. So I can’t create different patches when the Patch button is lit. I’m thinking this could be user error and confusion over factory patches vs user patches.
> I’m going to try loading factory patches using a utility eprom I found on the internet. I’ll be away for a few days and will report back.
> Thanks again 
> Al
> 
> 
> Sent from Yahoo Mail for iPhone <https://mail.onelink.me/107872968?pid=nativeplacement&c=Global_Acquisition_YMktg_315_Internal_EmailSignature&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000604&af_sub5=EmailSignature__Static_>
> 
> On Wednesday, August 7, 2024, 11:55 AM, Nathan Trites <nathan at idmclassics.net> wrote:
> 
> On one Jupiter 6 I did, I was convinced the RAM was bad because no matter what there would always be a few corrupt patches that would lock up the synth. Eventually I figured out the patches that failed had to do with the level I was doing the playback at, and it was consistent across every interface I have - the only solution was giving the tape signal an absurd amount of gain thru a preamp. If I recall the dump I got online was already normalized, and the cassette interface on the synth had no issues, so unless the CPU had a problem, it was possibly due to the frequency response of the specific dump or something like that. Ever since then I've done cassette restores on Jupiter 6's by giving it a ton of gain thru a mixer channel, and haven't had any patch dump issues yet. All that to say - don't rule out cranking the gain like crazy. 
> 
> I've also had to do what Tony describes to get JP-6 memory to work correctly 
> 
> Nathan
> 
> On Wed, Aug 7, 2024 at 3:28 AM Tony Allgood via Synth-diy <synth-diy at synth-diy.org <mailto:synth-diy at synth-diy.org>> wrote:
> I have seen similar behaviour before with various JP-6 units over the 
> years. What has always fixed it is going into manual mode. Create a 
> simple standard 'init' patch, something like a classic analogue pluck 
> sound will do. But it doesn't matter - just something you know the sound of.
> 
> Then program that same patch into *every* memory location.
> 
> Now check every patch still sounds the same and no crashes occur.
> 
> Reload the factory patches via tape if you wish.
> 
> However, if it is your own patches you are trying to load, then it could 
> be that it is those that are corrupted. In this case, it is probably 
> better to reprogram those sounds in manual mode.
> 
> Tony
> 
> www.oakleysound.com <http://www.oakleysound.com/>
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