Build Guide - Calibration

Build Guide - Calibration

Test Point	Trimpot	Procedure
TP-B52 VCO2-SQU	P1109	Set [TRANSPOSE] to '0' Set [PWM DEPTH] to minimum Set [PULSE WIDTH] to '5' Monitor TP-B52 with an oscilloscope or frequency meter Press 'MIDDLE C' on the keyboard Adjust VCO 1 [COARSE] and [FINE] to display one complete cycle Adjust P1109 until the duty-cycle is 50%
TP-B62 VCO2-SAW2	P1107	Monitor TP-B62 with either an oscilloscope or frequency counter Set VCO 2 [COARSE] to its mid-position Set VCO 2 [FINE] to '0' Press low `C` on the keyboard Adjust P1107 for a frequency of 65.406Hz
TP-B62 VCO2-SAW	P1101	Remove shunt JP1101 Monitor TP-B62 with either an oscilloscope or frequency counter Press low `C’ on the keyboard Adjust VCO2 [COARSE] and [FINE] for exactly 100Hz Press high `C’ on the keyboard Adjust P1101 trimmer for exactly 800Hz Repeat steps 3 to 6 until the frequency is correct on low `C’ and high `C’
TP-B62 VCO2-SAW	P1104	Fit shunt JP1101 Monitor TP-B62 with either an oscilloscope or frequency counter Press and hold low `C’ on the keyboard Adjust VCO2 [COARSE] and [FINE] for exactly 100Hz Press and hold middle `C’ on the keyboard Adjust P1104 trimmer for exactly 200Hz Repeat steps 3 to 6 until the frequency is correct on low `C’ and middle `C’