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Trimmer Description:
(1) VCO1 OFFSET
(2) VCO1 SCALE
(3) VCO2 SYMMETRY
(4) VCO2 OFFSET
(5) VCO2 SCALE
(6) VCO2 DC OFFSET
(7) VCO2 PURITY
(8) VCO2 GAIN
(9) VCO2 SYMMETRY
(10) VCO2 OFFSET
(11) VCO2 SCALE
(12) VCO2 DC OFFSET
(13) VCO2 PURITY
(14) VCO2 GAIN
(15) DC -15V
(16) DC +15V
(17) 4012 VCF FREQ CAL
2600 Trimmer Calibration Manual
(18) 4012 VCF VCF SCALE
(19) 4012 VCF OUTPUT OFFSET
(20) 4012 VCF GAIN
(21) 4072 VCF FREQ CAL
(22) 4072 VCF BIAS TRIM
(23) 4072 VCF OUTPUT OFFSET
(24) 4072 VCF GAIN
(25) VCA LINEAR GAIN
(26) Reserved
(27) VCA CONTROL REJ
(28) VCA EXPONENTIAL GAIN
(29) RING MOD GAIN
(30) RING MOD POS NULL
(31) RING MOD NEG NULL
(32) Reserved
(33) S&H PUSE WIDTH TRIM
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Summary of Contents for Behringer 2600
- Page 1 2600 Trimmer Calibration Manual Trimmer Description: (1) VCO1 OFFSET (18) 4012 VCF VCF SCALE (2) VCO1 SCALE (19) 4012 VCF OUTPUT OFFSET (3) VCO2 SYMMETRY (20) 4012 VCF GAIN (4) VCO2 OFFSET (21) 4072 VCF FREQ CAL (5) VCO2 SCALE...
- Page 4 Module Trimmer Description Procedure 1. Please reference Behringer SynthTool for this calibration. VCO1 VCO1 OFFSET VCO1 Frequency 1. Monitor VCO1 PULSE OUTPUTS with a Frequency Counter. VCO1 SCALE Baseline and Octave 2. Set INITIAL OSCILLATOR FREQUENCY , FINE TUNE and PULSE WIDTH to center, S/H OUT , ADSR...
- Page 5 VCO3 VCO3 OFFSET VCO3 Frequency 1. Monitor VCO3 PULSE OUTPUTS with a Frequency Counter. VCO3 SCALE Baseline and Octave 2. Set FREQUENCY , FINE TUNE and PULSE WIDTH to center, NOISE GEN , ADSR, VCO2 and ADSR Range to minimum, LFO SPEED , VIB DELAY and VIB DEPTH to minimum, REPEAT switch to center , AUDIO switch to KYBD ON, SYNC switch to OFF .
- Page 6 6. Set all VCF input fader to minimum. 7. Adjust 4012 FREQ CAL trimmer for output 10Hz±0.5Hz( 9.5 Hz – 10.5 Hz 4012 VCF VCF 4012 1V/Octave 1. Set VCF MOD switch to 4012. SCALE 2. Using a keyboard or MIDI-OX let the CV output +3V, Or outside +3V CV input to the KYBD CV jack.
- Page 7 5. Set RESONANCE fader to minimum. 6. Set all VCF input fader to minimum. 7. Adjust 4072 OUTPUT OFFSET trimmer for D.C. output to ±100mV. 4072 BIAS VCF 4072 Bias Trim 1. Set VCF MOD switch to 4072. TRIM 2. Monitor the VCF output with an oscilloscope that can read frequency. 3.
- Page 8 4. Adjust PEG NULL trimmer for Vpp < 100mV. RING MOD Positive Null of Ring 1. Monitor RING MOD output with an oscilloscope. POS NULL Modulator 2. Set the AUDIO/D.C. switch to AUDIO position. 3. Keep VCO1 fader and VCO2 fader not change. 4.
- Page 9 4. Set the VCA INITIAL GAIN, RING MOD and AR fader to minimum, set the VCF, ADSR fader to maximum. 5. Depress and hold the MUNUAL button then adjust EXPONENTIAL GAIN trimmer for output = 10V± 0.5V. S&H S&H PULSE S&H Clock Pulse Width 1.
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