(Note that amplitude is clipped when pulses overlap.)

1. Patch a 5VAC 500Hz saw wave to [SAW IN]
2. Monitor [OUT]
3. Observe Waveshape and:
4. Set [RANGE] to '5Vpp'
5. Set [PULSE WIDTH] to '4'
6. Set [PULSE POSITION] to 8'
7. Set [PULSE AMPLITUDE] to minimum

Adjust trimmer P101 for equal pulse widths

The following steps can be performed to perform a Functional Test:-

• Vary [PULSE AMPLITUDE] from minimum to maximum
• Verify second pulse amplitude ranges from -2.5V to +2.5V, with 0V near midpoint

• Tweak [PULSE WIDTH] and [PULSE POSITION] slightly for good symmetry (25% duty cycle for
  each segment.)
• Patch a 'modulation signal' (triangle or sine from an LFO) to [PULSE AMPLITUDE MODULATION]
• Verify ~ 0-50% pulse width range

• Set [PULSE WIDTH] control for a narrow pulse
• Set [PULSE MODULATION] to ~'8'
• Patch the 'modulation signal' to [PULSE POSITION MODULATION]
• Verify pulse position varies across the full wave cycle

• Set [PULSE WIDTH] to ~’4’
• Adjust [PULSE AMPLITUDE] for zero amplitude of second pulse
• Apply the 'modulation signal' to [PULSE AMPLITUDE MODULATION]
• Verify pulse amplitude varies over full +/-5V range.