Page 6 of 7
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The
AVS-MIDI-1
MIDI to CV
Converter
User Guide
Troubleshooting
Issue
Potential Solution
No LEDs light on
power up
Ensure that the 16-pin power cable is connected correctly, and
that the 12V, -12V, GND, and +5V lines are active.
I'm playing notes, but
nothing's happening
First, ensure that your MIDI cable is connected to the MIDI Input
of the unit, and that you are seeing indication from the sender
of MIDI that it is being sent correctly.
If the cable is connected, and MIDI messages are being sent
from the source device, the 'IN' LED on the AVS-MIDI-1 blinks
as messages are received.
If the 'IN' LED is blinking, but nothing else is happening, check
that you have selected matching MIDI channels on the source
device and the AVS-MIDI-1 (see page 3). If you set the
AVS-MIDI-1 to 'OMNI' mode, and your problem persists, then it
is likely not MIDI channel related.
Also ensure that you have a patch cable inserted into at least
one Gate output. These outputs are used to select the
polyphony (see page 4) and if no cables are connected to any
Gate outputs, the polyphony selection is zero (no notes). Note
that the other side of the patch cable inserted to a Gate output
need not be connected to anything if gates are not used.
The tuning process is
failing, stalling, or not
tuning the expected
range
Only use simple (ie. sine, triangle, sawtooth, pulse) waves of
analogue VCOs (digital VCOs shouldn't need tuning).
Make sure that the VCO is set to around 20Hz, or the lowest
audible pitch of a sine wave before starting the tuning routine.
Make sure that you've selected the channel by inserting a patch
cable into the gate output of the channel you would like to tune
(with no patch cables in higher numbered channels).
Make sure that the V/OCT output of your selected channel is
connected to the V/OCT input of your VCO, and that no other CVs
that could in
fl
uence the pitch or other characteristics of the VCO
are used. These can be reconnected after tuning.