ARP Instruments Inc. Avatar 2222 Synthesizer
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The AVATAR is divided into two sections: Synthesizer
Pitch Extractor/CV Generator.
section is like the ARP Odyssey (in fact,
the AVATAR and Odyssey use several of the same printed
circuit boards). It consists of two voltage controlled
oscillators, a voltage controlled filter, a voltage
, two envelope generators (ADSR and AR),
a low frequency oscillator, and a sample and hold circuit.
As with standard Keyboard
synthesizers, the Synthesizer
requires a 1 V/ Octave control voltage, gate and trigger to
The Pitch Extractor/CV Generator translates the Guitar
string signals into the language of synthesizers: 1 V/Octave
control voltage, gate and trigger. Using the ARP Six Channel
(Hex) pickup, the string signals are multiplexed to one
output (last note played) and then transformed to a control
voltage. Since the Synthesizer
is monophonic (single note),
only one string can be extracted and converted to a control
voltage at a time.
35.42 Mbytes (37144241 Bytes)
01 January 1978
Scanned document, all readable.
16 October 2017
SECTION 1 General Information ... 1
SECTION 2 Theory of Operation ... 4
SECTION 3 Circuit Descriptions ... 7
SECTION 4 Test Points ... 15
SECTION 5 Trim Procedures ... 22
SECTION 6 Schematics & Assemblies ... 26
SECTION 7 Parts List ... 44