Oberheim ob xa service manual 2

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oberheim ob xa service manual 2

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Page 2

OB-Xa

PROGRAMMABLE POLYPHDNIC SYNTHESIZER

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Covering Units With Serial Numbers 820818 And Above

THIRD EDITION JUNE 1982

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333383==:::=B:l:l!==::=:=::5=

TABLE OF CONTENTS

TECHNICAL NOTES

THEORY

Specifications
Improvements and Additions
DB-Xa Software History
Teet Procedure
Power Supply Test
Modulation Assembly Calibration
Upper and Lower Controi Board Calibration
Voice Card Calibration
The OB-Xa Diagnostic Eprom

OF OPERATION
Cassette Interface
Computer Interface

CONNECTOR DIABRAMS

SCHEMATICB

PARTS LAYOUT DIAGRAMS

PRINTED CIRCUIT COMPOSITE DIABRAMS

ENGINEERINB CHANGE ORDERS (ECOS)

CORRECTION NOTICE (Business Reply Letter)

OBERHEIM ELECTRONICS, INC.
2250 So. Harrington Ave.
Los Angeles, CA 90064 USA