[**Official Erica Synths Drum Sequencer Manual PDF**](https://www.ericasynths.lv/media/Drum_Sequencer_manual_FW_1.056.pdf)
# Erica Synths Drum Sequencer — Cheat Sheet
---
## PANEL & JACK REFERENCE
### **Inputs**
- **MIDI IN**: 3.5mm TRS (Adapter to 5-pin DIN supplied). Accepts MIDI clock/start/stop (usually 5V logic MIDI signals).
- **CLK IN**: 3.5mm mono. Accepts analog clock pulses, 4 PPQN (4 pulses per quarter note), 5V logic.
- **RST IN**: (Not typically present, but may be on some models) 3.5mm, 5V logic, resets the pattern.
### **Outputs**
- **TR1–16**: 16x 3.5mm mono, trigger/gate out. +10V standard, patchable to drum modules.
- **ACC1–ACC12**: Accent outputs (Trigger Tracks 1–12 only), 3.5mm. Default +10V (or configurable to +5V).
- **CV OUT**: 3.5mm, pitch CV for melodic track, 0–5V range (1V/oct, ~5 octaves).
- **GATE OUT**: 3.5mm, gate for melodic track, 0/+10V.
- **LFO1 & LFO2**: 2x 3.5mm, assignable LFO signals, typically 0-5V or bipolar, selectable shape and speed (typ. -5V to +5V if bipolar).
- **CLK OUT**: 3.5mm, outputs clock (configurable divisions/multiplications, 5V logic).
### **Knobs / Encoders**
- **ENC1**: Menu/data browse knob 1. Used to navigate/scroll through menu parameters.
- **ENC2**: Value/data entry knob 2. Used to change parameter values/settings.
### **Buttons**
**Top Row:**
- **BANK, PATTERN**: Change/select banks and patterns.
- **COPY, PASTE**: Copy and paste tracks, patterns, steps.
- **SHIFT**: Secondary functions when held. Combos for advanced functions.
- **CLEAR**: Clears individual steps, tracks, patterns (when used with SHIFT).
- **TRIG SEL**: Select tracks for editing or as paste destination.
- **STEP/TAP**: Enter tap/record mode, live step input (use SHIFT for FILL mode).
- **SHUFFLE**: Opens shuffle/swing settings (pattern or track).
- **DRCTN**: Opens direction (fwd/back/ping-pong/random) settings (pattern or track).
- **MUTE**: Opens mute mode for instant/performance mutes; with SHIFT for clear/arm.
- **LAST STEP**: Set last step for pattern/track (length adjustment).
**Transport:**
- **PLAY (►)**: Start sequence. Hold SHIFT to enter settings page.
- **STOP (■)**: Stop sequence. Double-tap to play. With SHIFT, enter settings page 2.
- **RECORD (●)**: Save pattern, enable record functions, save states.
**STEP KEYS 1-16:**
Used for pattern entry, step selection, track and pattern navigation, mute/solo, bar navigation, and advanced functions.
### **Menu Shortcuts**
- **Settings**: SHIFT + PLAY (first page), SHIFT + PLAY again for page 2
- **Song Mode**: SHIFT + BANK (once: write, twice: play)
---
## JACK VOLTAGE RANGES
| JACK TYPE | VOLTAGE RANGE | NOTES |
|----------------------|------------------|--------------------------------|
| Trigger Out (TRxx) | +10V (default) | Adjustable pulse width, 2-10ms |
| Accent Out (ACCxx) | +10V/+5V | Configurable per accent out |
| CV OUT | 0–5V / -3V to +4V| CV track, 1V/oct (see tuning) |
| GATE OUT/LFO OUT | +10V / 0-5V | Gate is standard 0V=low/10V=high|
| CLK IN/OUT | 5V logic | 4 PPQN (in), divides/mults out |
| MIDI IN | 5V logic | TTL MIDI via adapter |
---
## QUICK OPERATIONS
### **Selecting Banks, Patterns, and Tracks**
- **BANK:** Hold BANK, press STEP KEY 1–8 to select bank (A–H).
- **PATTERN:** Press STEP KEY 1–16 to choose pattern within current bank.
- **TRIG SEL (Track Select):** Hold TRIG SEL, press STEP KEY 1–16 (TR1–TR16), or turn ENC2 with TRIG parameter highlighted. CV/Track: Hold TRIG SEL + ENC2.
### **Entering/Editing Steps**
- In Pattern Edit: Press STEP KEYS to toggle steps on/off.
- Double-tap for ACCENTS (Tracks 1–12 only, accent must be enabled).
- Hold LAST STEP + desired step to set last step (track length).
### **Saving/Undo**
- **Save:** Press RECORD (●) any time to save current state.
- **Undo ("Pattern Reload"):** Hold ENC1, press ENC2 (restores last saved version).
### **Copy & Paste**
- **Pattern:** COPY, select to copy; PASTE, select to paste.
- **Track or Step:** COPY, TRIG SEL (select destination), PASTE. Use SHIFT for steps.
- **Clear:** HOLD SHIFT + CLEAR to clear track/steps.
### **Randomization (CV Track only)**
- Hold SHIFT + SHUFFLE while in CV track mode for step/random settings.
- Press BANK to randomize per chosen probability.
- Save with RECORD.
### **Direction & Shuffle/Swing**
- **Pattern**: Hold SHUFFLE/DRCTN in Pattern Play to set global pattern swing/direction.
- **Track**: Hold SHUFFLE/DRCTN in Pattern Edit for per-track swing/direction.
### **Mute/Solo**
- MUTE button toggles Mute Mode; individual STEP KEYS mute/unmute tracks.
- SHIFT + STEP KEY in MUTE Mode solos/un-solos.
- SHIFT + MUTE clears all mutes. Hold MUTE, select STEP KEYS for Mute Arming.
### **Tap (Live Record) Mode**
- STEP/TAP: Enter live step entry, tap triggers live.
- SHIFT + STEP/TAP: FILL submenu, for rolls/repeats.
### **LFOs**
- Hold TRIG SEL + ENC1 to enter LFO mode.
- ENC2 scrolls between: LFO1/2, wave (SIN, TRI, SAW, SQU, S&H), frequency, amplitude.
- Save with RECORD.
### **CV/Gate Track**
- Hold TRIG SEL + ENC2 to access.
- Note Edit: Press ENC1 in CV/Gate Track mode.
- Set scale (SCL), root note (ROO), octave (OCT), gate length per step.
- Step slides: Press two adjacent STEP KEYS in Note Edit to enable.
### **Song Mode**
- SHIFT + BANK: Write, twice for Play. Arrange/chains patterns with adjustable lengths.
### **Settings**
- SHIFT + PLAY: Enter settings (clock source, default BPM etc.)
- SHIFT + PLAY again: Second page (reset out, bar auto copy, accent settings).
---
## TUNING TIPS
- For 1V/oct, use a tuner and set CV/Track to C0/OCT 0, and tune oscillator C3 (130.81Hz) for basslines, or C6 (1,046.50Hz) for leads. Outputs 0–5V.
---
## FACTORY RESET
1. Turn off unit.
2. Hold PLAY + STOP while turning on.
3. Wait for completion.
---
## [Full PDF Manual Link](https://www.ericasynths.lv/media/Drum_Sequencer_manual_FW_1.056.pdf)
---
[Generated With Eurorack Processor](https://github.com/nstarke/eurorack-processor)
This sheet summarizes operational workflow, I/O references, voltage ranges, and fast-access combos for the Erica Synths Drum Sequencer (Firmware 1.056). Refer to the official manual above for deeper features, firmware updates, troubleshooting, and safety info!