Table Of Contents - Alesis ADAT BRC Service Manual

PREFACE............................................................................................................ i
WARNINGS ........................................................................................................ i
SAFETY SUGGESTIONS ................................................................................. ii
DOCUMENT REVISIONS................................................................................ iii
TABLE OF CONTENTS ................................................................................... iv
LIST OF FIGURES ............................................................................................ vi
LIST OF TABLES .............................................................................................. vi
1.0 INTRODUCTION......................................................................................... 1
1.1 Scope..............................................................................................................1
1.1.1 Document Conventions ..................................................................1
1.2 BRC Reference Manual.................................................................................1
1.3 BRC Error Messages .....................................................................................1
1.4 BRC Sync Cable Requirements.....................................................................2
1.5 List Of Abbreviations ....................................................................................2
2.0 BRC BUILDING BLOCKS ......................................................................... 3
2.1 BRC Power Supply........................................................................................3
2.2 Front Panel PCBs...........................................................................................3
2.3 Main PCB ......................................................................................................3
2.3.1 VCO Circuit....................................................................................3
2.3.2 10 MHZ Timer................................................................................4
2.3.3 ADAT Synchronization ..................................................................4
2.3.4 SMPTE Interface ...........................................................................4
2.3.5 Video Interface ...............................................................................5
2.3.6 48 KHZ Interface............................................................................5
2.3.7 MIDI Interface ................................................................................5
2.3.8 Main PCB Component Orientation ................................................5
3.0 BRC REPAIR................................................................................................ 6
3.1 BRC Assembly and Disassembly ..................................................................6
3.2 Removal of the Front Panel PCBs .................................................................6
3.3 BRC Internal Cabling ....................................................................................8
3.4 Front Panel Troubleshooting .........................................................................8
3.4.1 Front Panel PCB LEDs...................................................................8
3.4.2 Front Panel PCB Switches..............................................................9
3.4.3 Orientation of the Diodes and the LEDs ........................................9
3.5 Main PCB Troubleshooting...........................................................................9
3.5.1 VCO Circuit Troubleshooting ........................................................11
3.6 BRC Software Upgrades................................................................................11
3.7 Error Messages ..............................................................................................11

TABLE OF CONTENTS

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