Difference between revisions of "Lil' Erebus"
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| − | Lil' Erebus is a paraphonic synthesizer Eurorack module by Dreadbox. | + | Lil' Erebus is a paraphonic synthesizer Eurorack module DIY kit by Dreadbox. |
| + | The desktop version includes the synth, and an Eurorack power supply board. | ||
| + | == Documentation == | ||
| + | [https://www.dreadbox-fx.com/wp-content/uploads/2018/11/lilerebus_manual.pdf User manual] | ||
| + | |||
| + | [https://www.dreadbox-fx.com/wp-content/uploads/2018/04/Lil_Erebus_DIY_Kit_construction_manual.pdf Construction manual] | ||
| + | |||
| + | [https://www.dreadbox-fx.com/wp-content/uploads/2018/05/schematic-pcb_layout.pdf Schematic (for debugging purposes)] | ||
| + | |||
| + | == Using the Lil' Erebus == | ||
| + | * Connect to a sequencer/DAW using your preferred method (CV/Gate or MIDI using the DIN5 to 3.5mm adapter) | ||
| + | * Connect a 15VDC center positive power supply to the synth (IMPORTANT: check polarity and voltage using multimeter if not sure) | ||
| + | * Connect your speakers/headphones to the OUT jack on the ECHO/AMP section of the synth | ||
| + | * An infinite note will probably play, use that to tune the synth with the TUNE knob and a guitar tuner | ||
| + | * Program your sequence and start the sequencer. The synth should play what you've told it to. | ||
| + | |||
| + | == Troubleshooting == | ||
| + | * No sound | ||
| + | Check: | ||
| + | ** Pin 4 of IC5 (ATMega328). You should see a pulse each time the synth gets triggered by MIDI | ||
| + | ** All outputs of IC10, IC21, IC7, IC26 and IC2. You should see a waveform consistent with your VCO levels (LVL1 for sawtooth and LVL2 for pulsewave) | ||
| + | * No power | ||
| + | Check diode on power supply board. Be careful-er with voltage and polarity. | ||
Revision as of 17:36, 12 January 2024
Lil' Erebus is a paraphonic synthesizer Eurorack module DIY kit by Dreadbox. The desktop version includes the synth, and an Eurorack power supply board.
Documentation
Schematic (for debugging purposes)
Using the Lil' Erebus
- Connect to a sequencer/DAW using your preferred method (CV/Gate or MIDI using the DIN5 to 3.5mm adapter)
- Connect a 15VDC center positive power supply to the synth (IMPORTANT: check polarity and voltage using multimeter if not sure)
- Connect your speakers/headphones to the OUT jack on the ECHO/AMP section of the synth
- An infinite note will probably play, use that to tune the synth with the TUNE knob and a guitar tuner
- Program your sequence and start the sequencer. The synth should play what you've told it to.
Troubleshooting
- No sound
Check:
- Pin 4 of IC5 (ATMega328). You should see a pulse each time the synth gets triggered by MIDI
- All outputs of IC10, IC21, IC7, IC26 and IC2. You should see a waveform consistent with your VCO levels (LVL1 for sawtooth and LVL2 for pulsewave)
- No power
Check diode on power supply board. Be careful-er with voltage and polarity.
