Moog polymoog 280a 203a

Page 2

CONTENTS

SECTION PAGE NO.
POLYMOOG SYNTHESIZER SPECIFICATIONS .. . . . . . . .; ....... x
POLYMOOG KEYBOARD SPECIFICATIONS .................... xii

1 GENERAL ............................................... 1-1
1.1 INTRODUCTION ....................................... 1'1
1.2 PRINTED CIRCUIT BOARD ABBREVIATIONS ................... 1-1
1.3 CONNECTOR NOMENCLATURE ............................. 1-3
1.4 GENERAL ............................................. 1-10
1.5 POWER SUPPLY ......................................... 1-10
1.6 FRONT PANEL CONTROL ASSEMBLY ......................... 1-12
1.7 CONTROL CIRCUITRY ................................... 1-13
1.8 MODULATOR/GENERATOR ............................... 1-16
1.9 FILTERING AND OUTPUT SECTIONS ......................... 1-17
1.10 OSCILLATOR RANKS ................................... 1-19
1.11 POLYMOOG AND POLYMOOG KEYBOARD PRELIMINARY CHECK . . . 1-19
1.12 DISASSEMBLY ......................................... 1-19
1

TEST EQUIPMENT .

1. . . . .

1.16 TROUBLESHOOTING ..................................... 1-22
1.17 KEYBOARD GENERAL SERVICING ........................... 1-36
1.18 REMOVAL ............................................. 1-36
1.19 TROUBLESHOOTING ..................................... 1'36
1

POLYMOOG AND POLYMOOG KEYBOARD LEVELING PROCEDURE .

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333?

1.24 REAR PANEL CIRCUIT DESCRIPTION AND TROUBLESHOOTING ..... 142
1.25 FRONT PANEL SUBASSEMBLIES ........................... 1-42
1.26 GENERAL SERVICING POLYMOOG AND POLYMOOG KEYBOARD . . . 1-42
1.27 FRONT PANEL DISASSEMBLY ............................. 1-43
1.28 RIBBON PITCH CONTROLLER REMOVAL ..................... 1-43
1.29 TROUBLESHOOTING ..................................... 1-43
1.30 POLYPEDAL ........................................... 1-46
1.31 POLYPEDAL DISASSEMBLY PROCEDURE ..................... 1-47
2 BOARDS 1, 2, 3 DIVIDER AND HIGH FREQUENCY OSCILLATORS. 2-1
2.1 CIRCUIT DESCRIPTION ................................... 2.1
2.2 GENERAL SERVICING ................................... 22
2.3 REMOVAL ............................................. 2-2
2.4 TROUBLESHOOTING ..................................... 2-2

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