Trouble-Shooting; Midi Functions; Normal Operating Mode - Spectral Audio Neptune Bedienungsanleitung

The Neptune is also usable via MIDI if the CV / Gate switch on the rear side is on Out. The gate signal from
the MIDI converter and the external signal are mixed internally.

6. Trouble-shooting

1. Does the POWER indicator light ?
No : - Equipment is not switched on
- Power supply connection is faulty
Yes : Continue point 2.
2. Does the GATE/LEARN indicator light up when you play your MIDI keyboard ?
No : - The MIDI channel does not correspond with the MIDI keyboard. Set the MIDI channel and
reference sound as described in para. 5, MIDI Functions.
- MIDI connection is faulty / not correct
Yes : - The connection to the sound mixer is not correct
- Volume VCO 1, 2 and RINGMOD or SUSTAIN of the volume envelope is zero
- Sound mixer is not set correctly
3. I can hear a sound but there is no height variation..
- The CV In/Out switch on the rear side is set to In but there is no voltage on the CV socket. Set the switch
to Out if you want to use the MIDI or connect the socket to a CV Output of another synthesizer / converter.

7. MIDI Functions

7.1 Normal operating mode

In the normal operating mode the following MIDI commands are processed:
Note On/Off : In the range of the reference note, and up to a maximum of 5 octaves above it .
Pitch Bend : Control of the pitch
Controller 2 : Control of the cut-off frequency
Controller 1 : LFO modulation
Controller 64: Controls the hold function (Sustain): On = data value 127; Off = data value 0)
Controller 65: Switches the Slide function on/off: On = data value 127; Off = data value 0)
All these commands are of course only received on a MIDI channel which has been defined in the Learn
mode. In the normal operating mode, the GATE/LEARN indicator shows the gate function.
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