pg3
Switches Continued
Gate Switch:
The Gate switch selects how the LFOs will respond when a pulse/clock is patched to the GATE input jacks.
There are 4 different responses available.
Reset:
This is a pretty straight forward function similar to hard sync on a VCO. Each pulse resets the LFO to the start of the
waveform 0.
RSTST:
This mode is for Reset Start. This is similar to the RESET above but adds the capability to set the point at which the
waveform resets from 0-100%. The panel control for this is the Level/Reset knob panel top left. In this Gate Mode the level has
no effect having had its function replaced by Reset Start position. LFO amplitude is fixed at full scale or 100%. Also the LEVEL
CV modulation routing is now used to control the waveform start as well. Having control over the Reset position in the
waveform adds another unique dimension to shaping the way the LFOs cycle.
Hold:
In this Gate mode holding the gate input high FREEZES the LFO cycle position. When the gate returns to low state the
LFO resumes cycling.
Sync/Tap:
The Sync mode functions like a frequency counter. Using a timer it calculates the time or period between
pulses/clocks on the gate input jack and sets the LFO frequency to match. There is a separate gate input for each of the 4
LFOs so 4 different clocks can be used simultaneously. The RATE/DIV knob controls the division of the clock in this mode and
is able to divide the sync clock from 1-16 divisions including odd values. The TAP button can also be used to set the frequency.
Tapping 3 or 4 times at a steady pace to allow the timer to find an average is best for accuracy. The Rate/Division knob has no
effect when tapping.
CV Route Switch:
The CV Route switch assigns the CV input jacks to the 4 destinations for internal modulation.
Each of the 4 destinations can be modulated simultaneously. Even though only one LED colour is showing the other 3 can still
be active. The CV AMOUNT knob controls the depth of modulation and the CV AMOUNT LED indicates the polarity of the
modulation. GREEN= P and RED= Negative-. When LED is off the CV amount is 0 or none. The LED is also a handy
indication of whether CV routing is active for a given Route selection. When stepping through the Routing switch destinations
if the CV AMT LED is lit it is an indication that routing is assigned. If LED is off then no routing is assigned.
Holding the CV ROUTE switch in a depressed state for 2 seconds will remove all CV Routings from the active LFO channel.
This is a convenient way to get back to default state with all CV Routings OFF.
Input Jacks:
The range of input for the CV jacks is 0 - +/-5V. The high level pulse for the GATE inputs is ideally 5V but
10V will also work without damaging the module.
WAVES
LFO Waveforms:
There are 16 waveforms to choose from using the WAVE selection knob. Each wave can be
transformed or shaped in a manner that is different for each of the waves available. Please visit the web page
http://www.modcan.com/emodules/quadlfowaves.html to see Oscilloscope screen captures that illustrate the effect of the
TRANSFORM pot as it is rotated from 0 to fully clockwise. The same changes are also possible by assigning the CV input to
TRANS. Think of it like an advanced Pulse Width Modulation feature on a standard LFO.
The TAB1-3 contain 32 waves which are morphed smoothly with the transform control. The PATTERN wave uses the transform
knob to select the 1-32 patterns.
