1.4 Card
Summary
1.4.1 Mixer
Card
Contains eight VCAs (one per voice) and a stereo mixer that sums the
system outputs. Calibrations include CVA offset trimmers and channel
gain trimmers. The MIXER also contains the Noise Source and various
other minor system functions.
1.4.2 VCO
Card
Contains four VCOs. The system has four of these cards, two per side.
1.4.3 VCF
Card
Contains four VCFs and modulation circuitry. The system has two of
these cards, one per side. Calibrations include filter scaling, initial filter
cutoff and initial filter resonance for each VCF.
1.4.4 DAC
Card
Contains the Voice on/off functions, and the A/D and D/A functions,
which allow the CPU to control the analog system components.
Calibrations include DAC offset adjustment, reference trim and mod
system offset trim.
1.4.5 DIGIMOD
Card
Contains system clocking logic for the modulation and DAC subsystem.
1.4.6 ANAMOD 1 Card
Contains the mod subsystem routing circuitry.
1.4.7 ANAMOD 2 Card
Contains high speed multiplexed VCAs for the mod subsystem.
Calibrations include VCA offsets and gain as well as an adjustment for
pitch bend LEFT and RIGHT balance.
1.4.8 CPU
Card
Contains the host computer and memory circuitry for controlling the
Voyetra
and memorizing patch settings.
