Equipment information
Moog Music OPUS 339BX Synthesizer
Manufacturer:
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Model:
OPUS 339BX
Date:
1981
Category:
Group:
Description:
Information
SPECIFICATIONS
1.2.1 POWER REQUIREMENTS
Operating Voltage Range:
Domestic (Model 339A) - 95 to 130 Volts
60Hz.
Export (Model 339BX) - 190 to 260 Volts
50Hz.
Power Consumption: 20 Watts.
1.2.2 TONE GENERATOR
Reference Frequency: High A, 16’ = 440Hz. Stability (Drift):
Less Than .02% per °C.
1.2.3 CONTROLLERS
Keyboard: 49 Note, C to C, Polyphonic.
Master Tune Control Range: +/-3 Semitones. Pitch Wheel
Range: Greater Than +/- Perfect Fourth.
Modulation Oscillator Waveshape: Sinusoidal. Modulation
Oscillator Rate: From .18 to 18Hz.
Amount of Modulation: Variable.
FM (Oscillator): +/-3 Semitones Minimum. VCF (Filter): 10
Octaves.
Modulation Delay: From 20mS to 20S.
1.2.4 CHORUS
Input Mixer: Continuously Variable From Strings to Organ.
String Footages: 8’, 4’, both (8’ + 4’).
String Waveform: Sawtooth.
String Equalization: Low Band and High Pass. Equalization
Frequency: From 150Hz to 12kHz. Resonance: Variable.
Chorus Control: Depth (Variable), Rate (Fast 6.5Hz or Slow
.73Hz).
Animation Can Be Delayed, Same As Modulation.
1.2.5 ORGAN
Footages: 16’, 8’, 4 2 1’ With Separate Level Controls.
Waveform: Square wave.
Tone Control:
Type: 2-Pole Variable Lowpass Filter.
Cutoff frequency: From 150Hz to 15kHz.
1.2.6 VOLTAGE CONTROLLED FILTER
Type: 24dB/Octave Lowpass.
Input Mixer: Continuously Variable From Organ To Brass.
Brass Footages: 16’, 8 or 4’.
Brass Waveform: Sawtooth.
Filter Mode: Preset or Variable.
Cutoff Frequency: 30Hz To Out Of Audio Range.
Emphasis: Variable From None To Regeneration Mode.
Range of Filter Cutoff Control: 10 Octaves. Maximum Sweep of
CF by Filter Contour Generator: 8 Octaves.
Filter Contour Generator Controls the Cutoff Frequency Of
The Filter Through an Attenuator:
Range of Attack Time: From 0 to 5.5 Seconds. Range of Decay
Time: From 0 to 8.7 Seconds. Sustain Level: From 0% to 100%
of Contour
Peak.
Final Decay Switch Defeats Articulator Final Decay For VCF
Sound Path.
1.2.7 ARTICULATOR
Modes: “Cancelling” and “Overlapping.”
Range of Attack Time: From 0 to 20 Seconds. Range of Release
Time: From 0 to 6 Seconds.
Separate Pan, Level, and On/Off Controls. Typical Full
Output Level: OdBm.
Signal/Noise Level Better Than 80dB.
Nominal Output Impedance Less Than 5K Ohms.
1.2.9 REAR PANEL
Left and Right Stereo Outputs.
Mono Output.
Sustain Footswitch Input (Normally Closed).
1.2.8 STEREO OUTPUT Mixer
Master Gain Control For Three Sound Paths: Chorus
(Strings/Organ) - Coded Orange. Organ Direct - Coded Green.
VCF (Organ/Brass) - Coded Yellow.
1.2.10 PHYSICAL DIMENSIONS
Overall Size: 5-5/8” High x 14-15/16’ x 29-3/4” Wide (14.3cm
x 37.9cm x 75.6cm). Net Weight: 20 lbs. (9 Kg).
Manual Type:
Service Manual
Pages:
43
Size:
5.29 Mbytes (5549428 Bytes)
Language:
english
Revision:
Manual-ID:
993-044634-001
Date:
1981 01 01
Quality:
Scanned document, all readable.
Upload date:
2017 11 01
MD5:
e8df71ce33e55b2082cdd9cea08011c1
Downloads:
785
Information
This manual provides servicing and parts information for
Opus 3 Synthesizer, Domestic Model 339A and Export Model
339BX, manufactured by Moog Music Inc., 2500 Walden Avenue,
Buffalo, New York 14225.
This manual is divided into six Sections:
Section 1
Introduction and Specifications; Section 2 Circuit
Description; Section 3 Disassembly and Reassembly
Procedures; Section 4 Field Test Procedure and
Troubleshooting (also includes articulation mode charts);
Section 5 contains a Final Assembly Replacement Parts List
and a separate Replacement Parts List for each of the three
printed circuit boards; and Section 6 contains a functional
block diagram, schematic and parts location diagrams for
each board. Alignment and adjustment procedures, voltages
and waveforms, as applicable, appear on the schematics.