Batumi Quad LFO
- +12V = 45mA
- -12V = 15mA
- 5V 0mA
The shape of the saw waves depends on a jumper setting on the back of the module. More about that below and in section 9 of the manual.
- The top section (1 in the manual) consists of the 4 sliders that control the main parameters of the selected LFO mode. One slider per LFO.
- Under the sliders is a section (7 in the manual) with 2 LEDs to the left and 2 LEDs to the right of the center button which switches between the 4 LFO modes. The LEDS are for displaying which mode is selected, they also blink in certain states.
- Underneath the mode button section is a row of inputs. This section (2 in the manual) is for controlling the selected LFO mode parameter with voltages, one input per LFO.
- The second row of sockets are inputs for resetting or syncing cycles, one per LFO (section 3 in the manual). The behaviour depends on a jumper setting on the back of the module. More about that below and in section 8 of the manual.
- The third row of sockets (section 4 in the manual) output sine waves, one output per LFO.
- The fourth row of sockets (section 5 in the manual) output saw waves, , one output per LFO.
- The fifth (bottom) row of sockets (section 6 in the manual) output square waves, one output per LFO.
Connectors and jumpers on the module's rear
There are 3 sets of pin connectors on the back of the module:
- The left-most connector is for the power.
- Next to the power connector is a single column of 3 pins for updating the software (related to section 11 of the manual).
- The right-most set of pins are for preference settings that govern the behaviour of the module
- When the top two pins are bridged by a jumper, the module is in Sync mode (see section 8 of the manual).
- The middle and bottom pairs of pins control the saw waveform selection (see section 9 of the manual). These are the different possible connection layouts:
- Jumper linking the middle pair of pins, no jumper on the bottom pair = saw up (a.k.a. a ramp).
- Jumper on the bottom pair of pins, no jumper on the middle pair = saw down.
- Jumpers on both the middle and bottom pairs of pins = triangle.
- No jumpers on either the middle or bottom pairs of pins = trapezoid.
Poti Expander for the Batumi
The separate Poti expander module connects to the right-most connector on the back of a Batumi and replaces the jumpers. This module gives you manual access to the preference settings. It comes with 3 switches:
- +12V = 0mA
- -12V = 0mA
- 5V 0mA
The top switch changes between Reset (top position) and Sync (lower position).
The two switches at the bottom (switch 2 and 3) are for assigning the saw waveform. These are the different switch position combinations:
- Switch 2 right, switch 3 left is saw up (ramp).
- Switch 2 left, switch 3 right is saw down.
- Both switches right is triangle.
- Both switches left is trapezoid.