Dreadbox Erebus Yapım Kılavuzu - Sayfa 10
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Step 7 - Tuning
This is the most challenging part of the build.
First thing you should do, is to prepare your workbench. Make sure that
your working area is all cleaned up and we strongly suggest to use the
foam to support the module.
1. Connect a patch cable to the CV1 output.
2. Use the crocks to connect the multimeter with the minijack as shown in
the picture. The red goes to the tip and the black goes to the ground. Then
turn the multimeter on to the DC voltage measurement.
3. Connect the module to a USB power source.
IMPORTANT NOTE: To enter the calibration mode you must flip the OMNI/
CHAN switch 6 times in the first 10 seconds that the unit is powered.
4. After entering the calibration mode :
- Set GLIDE 1, GLIDE 2, A, D, S, R knobs (from the Envelope) to about 50%.
- Set the LEG/OFF switch to the OFF position
5. Tuning of CV1:
- set the OSC1 octave switch to "32"
- The multimeter will show a measurement of about 3 volts. Use the
"GLIDE 1" knob to set it as close as possible to 3 volts. The ideal voltage is
3.000mV (3V = 3000mV) but that is not always possible. You can allow a
0,010 offset with no problems.
- Then set the octave 1 to "16". The multimeter will show about 6 volts.
This time use the GLIDE 2 knob to set it to 6.000 volts.
- Then set the octave 1 switch to "8". The multi meter will show about 9
volts. Use the A knob to set it to 9,000.
IMPORTANT NOTE: After setting it up make sure not to touch these knobs
again while in calibration mode, because the setting will be lost and you will need to run the process
again.
6. Tuning of CV2:
- Remove the patch cable from CV1 and connect it to CV2 .
- set the OSC2 octave switch to "16"
- The multimeter will show a measurement of about 3volts. Use the "D" knob to set it as close as possible
to 3 volts. Ideal is 3,000 but that is not always possible. You can allow a 0,010 offset with no problems.
- Then set the octave 2 to "8". The multimeter will show about 6 volts. This time use the "S" knob to set
it to 6.000 volts.
- Then set the octave 1 switch to "4". The multi meter will show about 9 volts. Use the "R" knob to set it
to 9,000.
IMPORTANT NOTE: After setting it up make sure not to touch these knobs again while in calibration
mode, because the setting will be lost and you will need to run the process again.