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Slim Phatty Problems: Osc2 Tune + Envelope

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Slim Phatty Problems: Osc2 Tune + Envelope

Postby Vitja » Mon Jan 16, 2017 10:03 am

HI!

Long time no posts from me. Guess everything was good.

I really did't play ma slim phatty lately, so here it goes… some problems:

Oscillator 2 has a offset. It is always higher than Osc1. It goes higher by Freq control, and It doesn't go low as it should.
Also it is not in tune if you go and play in the higher register. I did calibration. I know this synth well.
So is there a trimpot inside for offset? Or can I do something about it?

Envelopes: This is bigger problem. When I select a preset, panel is not in active mode. But suddenly without moving anything, panel becomes active and envelop changes. It is random thing. I tried this without MIDI cable and no USB.

I will try and do a factory restore and see if it can help to solve this problems.

Any help would be helpful!

Vitja
Gear:Slim Phatty, Arturia Minibrute, Casio MT-600, MF-101,MF-102,MF104Z,MP-201,CP-251,Ibanez John Scofield, PRS custom 24, circuit bent Kawai R-100,Circuit Bent Roland TR-505, Boss Dr55, Akai MPK 25, Ensoniq DP/4, RME Fireface 800, tons of guitar effects.
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Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby MRNUTTY » Tue Jan 17, 2017 1:23 pm

Vitja, what firmware version d you have? When I bought my four SP's, I noticed a lot of weirdness went away when I updated them all to 2.90 (or something). It's been updated past that since then.
VoyagerEB,Minitaur,LittlePhattyII,4xSlimPhatty,Sub37, MF[2x101,2x102,103,104M,105,105B,105M,2x107,108M],3xMP251,XV351,MP201;
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Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby Vitja » Wed Jan 18, 2017 7:45 am

I have the latest firmware.

Ok, so the problem with envelopes was a ground issue of the place. At home, everything is ok.
I calibrated it yesterday… I have to check how is the tuning of Osc2 now.
Gear:Slim Phatty, Arturia Minibrute, Casio MT-600, MF-101,MF-102,MF104Z,MP-201,CP-251,Ibanez John Scofield, PRS custom 24, circuit bent Kawai R-100,Circuit Bent Roland TR-505, Boss Dr55, Akai MPK 25, Ensoniq DP/4, RME Fireface 800, tons of guitar effects.
Vitja
 
Posts: 175
Joined: Thu Apr 23, 2009 12:14 pm
Location: Slovenia

Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby Vitja » Mon Jan 23, 2017 2:01 pm

Ok, so Envelope is good.

But, Osc 2 frequency is bad.
If I want osc 1 and osc 2 in tune, I have to turn the control so the second led of the center is illuminated.
As I turn the Freq up, I can't reach the perfect fifth. It doesn't get that high. But I can get almost major third if I turn it all the way down.

So whats happening here?

Did anyone have the same problem?

Please help!

I have a very important gig in next week, and all my presets that are using 5ths and 4ths are useless.
Gear:Slim Phatty, Arturia Minibrute, Casio MT-600, MF-101,MF-102,MF104Z,MP-201,CP-251,Ibanez John Scofield, PRS custom 24, circuit bent Kawai R-100,Circuit Bent Roland TR-505, Boss Dr55, Akai MPK 25, Ensoniq DP/4, RME Fireface 800, tons of guitar effects.
Vitja
 
Posts: 175
Joined: Thu Apr 23, 2009 12:14 pm
Location: Slovenia

Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby stiiiiiiive » Mon Jan 23, 2017 3:14 pm

In your shoes, I would try a second calibration. I remember having solved a problem through double calibration. Crossed fingers, mate :)
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Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby Vitja » Wed Jan 25, 2017 4:53 am

Ok, I will try. Hope this helps.
Gear:Slim Phatty, Arturia Minibrute, Casio MT-600, MF-101,MF-102,MF104Z,MP-201,CP-251,Ibanez John Scofield, PRS custom 24, circuit bent Kawai R-100,Circuit Bent Roland TR-505, Boss Dr55, Akai MPK 25, Ensoniq DP/4, RME Fireface 800, tons of guitar effects.
Vitja
 
Posts: 175
Joined: Thu Apr 23, 2009 12:14 pm
Location: Slovenia

Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby Vitja » Tue Jan 31, 2017 12:59 pm

OK, I tried several calibration procedures. Osc2, Note and PW.
Everything is the same.

I tried factory restore, nothing happens :cry:

What I figured out is:

Both oscillators in lowest octave (16') are sharper than other octaves.
So if I tune phatty in 16 octave and move the octave to 8' it will be 20 cents flat for the osc1.
If I do the same for osc2 it will be almost a half tone flat!!!

And also, Osc2 frequency is not reaching perfect 5th. It can't go that high.

BUT!

If I switch the octaves on my Akai MPK25 MIDI controller, It is in perfect pitch?
So it has to do something with the calibration for the controls…

So, I tried everything about tuning and calibration.
I always turned phatty 3 hours before I ran the calibration and in the constant temperature.



I have a very important show to play in 1 week. I'm doomed.

All the presets are out of tune - out of timber … Oscilator 2 is constantly detuned, I can't use the octaves.

Amos, I miss you! :cry:
Gear:Slim Phatty, Arturia Minibrute, Casio MT-600, MF-101,MF-102,MF104Z,MP-201,CP-251,Ibanez John Scofield, PRS custom 24, circuit bent Kawai R-100,Circuit Bent Roland TR-505, Boss Dr55, Akai MPK 25, Ensoniq DP/4, RME Fireface 800, tons of guitar effects.
Vitja
 
Posts: 175
Joined: Thu Apr 23, 2009 12:14 pm
Location: Slovenia

Re: Slim Phatty Problems: Osc2 Tune + Envelope

Postby stiiiiiiive » Tue Jan 31, 2017 7:01 pm

Sorry it did not work. Definitely write to Moog tech support.
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