Moog Slim Phatty - Page 44

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 SlimPhattyUser’sManualTheUserInterface        
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 SlimPhattyUser’sManualTheUserInterface
Notes:Allcalibrationproceduresshouldbethoroughlyreviewedbeforeproceeding.Observethefollowing
precautionsandrecommendationsbeforeattemptinganycalibrationoperation.
1.TheSPmustbeatastableandconstanttemperatureduringcalibration.YoushouldallowtheSPto
warmup45minutesbeforebeginninganycalibrations.
2.TheNoteCalibrationproceduretakesabouttwohourstocoverthefullMIDInoterange.Ifyouare
performingthiscalibration,allowsufcienttimeforthecalibrationprocesstocomplete.
3.TheSPiscalibratedatthefactory.TheNoteCalibrationoperationisnotnecessaryunlesstheSP
goesoutoftune.TheNoteCalibrationoverwritesthecurrentcalibrationlookuptable(LUT).Performinga
FactoryRestoreoperationwillnotcausetheLUTtoreverttothefactorycalibration.
4.YoucanexitoutofacalibrationatanytimebypressingtheMASTERbutton.FortheNoteCalibration
operation,onlythosenotesthathavealreadybeencalibratedwillbesaved.Theremainingnoteswill
reverttotheirpreviouscalibrationvalues.InterruptingtheNoteCalibrationoperationinthismannermay
resultininaccuratetuning.
5.NoteCalibrationisnotmeantforoveralltuningdrifts,suchasiftheSPis10centssharp.Smalltuning
driftsarebesttakencareofusingtheAutoTunefunction.
6.IfyouperformaNoteCalibration,itishighlyrecommendedthatyoualsoperformtheOscillator2
FrequencyCalibrationtoensureaccuratefrequencytrackingwiththenewLUT.
The sixth page of the System Utilities menu allows you to calibrate the
Slim Phatty. In the past, calibration of analog synthesizers had to be
performed manually by experienced service personnel. The SP’s built-
in calibration utilities now allow you to perform many of these proce-
dures yourself, without the expense and hassle of shipping the SP back
to the factory for calibration. The SP’s calibration utilities allow you to
perform individual calibrations on the oscillators and the note range.
For example, the Note Calibration operation individually tunes each
note exactly for each oscillator and octave setting. This tuning informa-
tion is stored in the SP’s EEPROM and referenced when playing a note
to guarantee that the SP’s oscillators will be in tune. Other calibrations
ensure that variable controls such as the pitch wheel amount and oscil-
lator 2 detuning function predictably and precisely.
To access the calibration options, press ENTER, then use the VALUE
knob to select the desired calibration.
While the restore process is taking place, the LCD will briefly
display a ‘RESTORING FACTORY DEFAULTS’ message. When
complete, the screen will return to the System Utilities menu.