KITTEN CALIBRATION PROCEDURE
TRIMMER LOCATIONS
1. Keyboard Current
6. VCO Range
2. ADSR Attack Time
7. VCO Initial Pulse Width
3. Octave Transpose Cal.
8. VCO Triangle Symmetry
4. Pitch Bend Cal.
9. VCA Control Rejection
5. VCO Volts/Octave
10. VCF Volts/Octave
TRIMMER ADJUSTMENT
PROCEDURE
1
KEYBOARD CURRENT
1. Monitor the CONTROL VOLTAGE output (ring of the TO SLAVE
output jack) with a digital voltmeter.
2. Adjust the KEYBOARD CURRENT TRIMMER for a difference of
exactly 3.000 volts between the highest and lowest keys
depresses on the keyboard.
6 VCO
RANGE
1.
Place the KEYBOARD CONTROL switch in the ON position.
2.
Turn up the VCO Sawtooth slider.
3.
Set the VCO TUNE controls to the 12 o’clock position.
4.
Pin A2 on the keyboard.
5.
Adjust the VCO RANGE TRIMMER until the frequency of VCO is
approximately 440 Hz.
5 VCO
V/OCT
1.
Place the KEYBOARD CONTROL switch in the ON position.
2.
Pin high C on the keyboard.
3.
Using the VCO FREQUENCY controls, tune VCO Reference
Frequency until zero beat.
4.
Depress low C and adjust the VCO V/Oct Trimmer the frequency
of VCO is exactly three octaves below that of Reference
Frequency. At this point, zero beat will occur.
5.
Repeat step 2, 3, and 4 until no further adjustment is necessary.
3 OCTAVE
TRANSPOSE
1.
Leave the KEYBOARD CONTROL switch in the ON position.
2.
Pin High C.
3.
Tune VCO and Reference Frequency to zero beat.
4.
Depress C2.
5.
Place the OCTAVE Switch in the +2 position.
6.
Adjust the OCTAVE TRANSPOSE TRIMMER for zero beat between
VCO1 and Reference Frequency.
4 PITCH
BEND
1.
Repeat steps 1, 2 and 3 for the OCTAVE TRANSPOSE adjustment.
2.
Depress C3.
3.
Place the PITCH BEND slider in the +1 position.
4.
Adjust the PITCH BEND TRIMMER for zero beat, between VCO1
and Reference Frequency.
7 VCO
INITIAL PULSE WIDTH
1.
Turn up the VCO
slider and turn all other audio sources
fully off.
2.
Check that PULSE WIDTH control is fully off.
3.
Monitor the synthesizer output with an oscilloscope.
4.
Adjust the VCO INITIAL PULSE WIDTH TRIMMER for 50% duty
cycle.