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Equipment information:

Synthesizer -- ARP Instruments Inc. Odyssey 2823

Manufacturer:
ARP Instruments Inc.
Model: Odyssey 2823
Date: 1978
Category: Professional music equipment
Group: Synthesizer
Description:
Information:
Three types of Odyssey models have been produced: I) 2800,
2) 2810-2815 and 3) 2820-2823. The model and serial number
are located at the rear or bottom of the Odyssey chassis.
Except for 2800, a typical number might read: 2813-0490. For
model 2800, the first two digits of the serial number denote
the model, such as: 28490. Listed below are the board
identification numbers for each model; they will be
referenced in the service manual by model number for easy
identification.

Model Changes
The Odyssey has undergone major cosmetic and electrical
changes since its original production in 1972, however, the
functional capabilities have remained virtually unchanged.
The following are the most noticeable physical differences
among models:

MODEL 2800
Black and white face panel (some later models have black and
gold face panels).

Pitch Bend knob

No Factory installed interface jacks.

Wrap around vinyl bottom cover.

MODEL 2810-2813

Black and gold face panel.

New style power switch.

Factory installed interface jacks*

Pitch Bend knob. (Some later models have PPC.)

Wrap around vinyl bottom cover.

MODEL 2820-2823 (current model, Odyssey '78)

Black and orange face panel.

Steel chassis Leather endblocks -

PPC

The major electrical changes found in the Odyssey-II as
compared to the Odyssey-I are:
1.	Uses 24db/octave filter in place of 12db/? octave.
2.	Improved VCO design for better tracking# and stability.
3.	Improved power supply regulation.
4.	Improved keyboard current source for CV generation.
5.	Improved S/H memory circuit design.







These manuals for the ARP Odyssey 2823 Synthesizer
can you download here for free:

Service Manual -- ARP Instruments Inc. -- Odyssey 2823

Manual Type: Service Manual ARP-9678-Manual-Page-1-Picture
Pages: 44
Size: 11.54 Mbytes (12101282 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 01 January 1978
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
Downloads: 150 since 15 October 2017
Information:
This service manual is divided into three major sections: A)
Circuit Descriptions, B) Trim Procedures, and C) Board Test
Points. The circuit descriptions should be consulted when a
problem is suspected in a particular area of the instrument.
The trim procedures should be used to verify calibrations or
when a component has been changed. The board test points are
a quick reference to verify circuits with suspected problems
and should be checked whenever a problem has been identified.
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These manuals are for personal use only.

These documentations are only intended for qualified technicians who are aware of the respective safety regulations.

Trademarks and Copyrights used herein are the property of their respective owners.