Difference between revisions of "Lil' Erebus"
| Line 18: | Line 18: | ||
== Troubleshooting == | == Troubleshooting == | ||
| − | * No sound | + | * No sound |
| − | Check: | + | **Check: |
| − | ** Pin 4 of IC5 (ATMega328). You should see a pulse each time the synth gets triggered by MIDI | + | *** 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) | + | *** 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 | * No power | ||
| − | Check diode on power supply board. Be careful-er with voltage and polarity. | + | ** Check diode on power supply board. Be careful-er with voltage and polarity. |
Latest revision as of 18:53, 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
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)
- Check:
- No power
- Check diode on power supply board. Be careful-er with voltage and polarity.