Service manual

TABLE OF CONTENTS

Warranty......................................................................................................................... i

Safety Notice.................................................................................................................iii

Safety Symbols ............................................................................................................ iv

SECTION 1 – THEORY OF OPERATION

1.1 INTRODUCTION...............................................................................................1-1

1.2 SYSTEM OVERVIEW .......................................................................................1-1

1.3 INTERCONNECTION .......................................................................................1-3

1.4 DIGITAL CONTROL BOARD............................................................................1-4

1.5 ANALOG PROCESSOR BOARD......................................................................1-6

1.6 HOUSEKEEPING BOARD (HSKP)...................................................................1-7

1.7 POWER CONDITIONER MODULE ..................................................................1-8

1.7.1 RECTIFIER INPUT..............................................................................1-8

1.7.2 POWER FACTOR CORRECTION (PFC) INPUT................................1-8

1.7.3 DC/DC CONVERTER..........................................................................1-9

1.8 AMPLIFIER MODULE.......................................................................................1-9

1.9 GLOSSARY.....................................................................................................1-10

SECTION 2 – MAINTENANCE AND TROUBLESHOOTING

2.1 GENERAL ........................................................................................................2-1

2.2 FACTORY REPAIR ..........................................................................................2-1

2.3 REQUIRED TEST EQUIPMENT ......................................................................2-2

2.4 PERIODIC MAINTENANCE .............................................................................2-2

2.5 FAULT SYMPTOMS / TROUBLESHOOTING ..................................................2-3

2.6 DISASSEMBLY & RE-ASSEMBLY ..................................................................2-5