Erica Synths Bassline Bedienungsanleitung


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GUIDE TO ASSEMBLY OF ERICA SYNTHS BASSLINE MODULE
If you are reading this, most probably, you are
about to build Erica Synths DIY BASSLINE module.
The module is 45mm deep, skiff friendly, has solid
mechanical construction and doesn’t require wiring.
Erica Synths Bassline is full analogue synth
voice module for ultimate acid basslines. It features
highly stable AS3340-based VCO with three
waveforms, a filter inspired by Erica Synths Acidbox
and unique feature transistor-based suboscillator–.
Accent provides more expression to the bassline, by
adding volume and opening the VCF slightly.
The Bassline kit comes in three versions:
1) Set of 2 PCBs + rare ICs + mechanical parts (PCB
connectors and spacer),
2) Set of 2 PCBs + rare ICs + mechanical parts (PCB
connectors and spacer)+ panel,
3) Full kit.
FEATURES:
•Full analogue circuit
•Great 1V/oct tracking
•Simultaneous Triangle, Square and Master
outputs
•Accent
•Transistor-based suboscillator
•VCF and VCA decay envelopes
•LP/BP VCF
•External VCO FM and VCF cutoff CV inputs
SPECIFICATIONS:
•Pitch range -C0 C8
•Audio output amplitude 10Vptp
•CV amplitude (full span) -5V - +5V
•Panel width 16HP
•Module depth 45mm
•Power consumption 80mA @+12V,
40mA@-12V
13
4
2
5 6
7
89
1
2
3
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8
Set the initial tune of the VCO
Add some power to the sound! This is octave down transistor-based
suboscillaotr level control and effects Main output only
Set desired overdrive level! It effects Main output only
This is an external FM level attenuator. You can also do some self-
modulation by patching TRI OUT in to FM IN and increasing FM level.
Adjust VCF cutoff CV level! If nothing is patched in C OFF CV input, it
adjusts VCF envelope impact on the cutoff
Adjust the VCF cutoff envelope decay time
9Adjust the VCA envelope decay time. Full CW setting will open
the VCA even the gate is not present
10 11 12 13 14
15 16 17 18 19
10 Select the VCF mode
11 Select the VCO waveform that is sent to the master output
12 This is an external CV input to control the VCF cutoff
13 This is the VCO 1V/oct input. It tracks well over 9 octaves
14 This is the VCO FM input
15
16 This is the Accent input. +10V CV will increase the volume and
open the VCF slightly to an expression to the bassline
17 18
19 This is the main output of the module
Big knobs are for VCF cutoff manual control!
Adjust the VCF resonance! The filter is the same as on DIY Polivoks
VCF, and it’s capable of extreme resonance sweeps.
This is the Gate input. It accepts gate from any sequencer and
sends it to the VCF and VCA envelopes simultaneously
These are additional VCO outputs, and they are not affected by VCF
and VCA. You can use them as additional sound sources that are in
tune with your bassline
Take precautions with regard to electrostatic discharge (ESD) safety. Handling components should be done
in electrostatically safe environment. Use personal and workplace grounding. Any discharge (even a minor
one) from body to a component may permanently damage it.
Our PCBs have silkscreened both component values and designators nevertheless we highly recommend
you to print out files with component placement before you start assembly of the module. And, please, at
least take a look on this manual!
Some components are marked as NU (not used) leave those unpopulated! Some components are –
market as OPTION (those are for optional modifications) leave those unpopulated for now.–
ASSEMBLY
1Solder horizontally placed resistors, diodes and ferrite beads on both PCBs (Controls board and Main board)! Pay
attention on orientation of diodes! Also, solder IC sockets on the main board!
2Solder IC sockets and capacitors of both boards! Solder resettable fuses on the Controls board!
GUIDE TO ASSEMBLY OF ERICA SYNTHS BASSLINE
Controls board
Main board
When nothing is
patched into 1V/oct
input, it’s normalled to
+12V thru the R12,
which defines the
initial tune of the VCO.
You may want to
adjust it to your taste,
when calibrating the
VCO, therefore we
recommend to solder
R12 on the other side
of the PCB! Increasing
the R12, the initial
tune of the VCO will
decrease.
3Solder potentiometers, switches, jacks and transistors (pay close attention on transistor denominations and
orientation) on the Controls board and vertically placed resistors on the Main board!
4Solder transistors and K140UD12 opamps on the Main board! Pay close attention on orientation of transistors and
opamps! Solder electrolytic capacitors. Mind their polarity! Some capacitors are non-polarized their polarity –
doesn’t matter.
GUIDE TO ASSEMBLY OF ERICA SYNTHS BASSLINE
Negative lug of
electrolytic
capacitor is marked
with a stripe!


Produktspezifikationen

Marke: Erica Synths
Kategorie: Klaviatur
Modell: Bassline

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