SPHINX Project Twelve - Table of Contents

SPHINX Project Twelve Service Manual
2
Contents
1. UNPACKING .......................................................................................................................................3
2. SPHINX WARRANTY CARD ..............................................................................................................3
3. CONTACTING THE MANUFACTURER.............................................................................................3
4. THE POWER AMP AT A GLANCE.....................................................................................................4
Front panel...................................................................................................................................................4
Rear panel ...................................................................................................................................................5
5. TECHNICAL SPECIFICATIONS.........................................................................................................6
6. GENERAL CHECKLIST......................................................................................................................7
Optical connections .....................................................................................................................................7
Switching the amp on...................................................................................................................................7
Protection mode...........................................................................................................................................7
Cables..........................................................................................................................................................7
7. USING THE AMP WITHOUT PROTECTION CIRCUIT......................................................................8
Removing the protection circuit board .........................................................................................................8
Repositioning the protection circuit board.................................................................................................... 8
8. ADJUSTMENT PROCEDURES..........................................................................................................9
Bias.............................................................................................................................................................. 9
Offset .........................................................................................................................................................10
Common mode ..........................................................................................................................................10
9. PROBLEMS AND SOLUTIONS........................................................................................................11
10. DIAGRAMS AND PARTS LISTS ....................................................................................................12
Connection diagram for testing the project 12........................................................................................... 13
Schematic layout of project 12 with securityprint.......................................................................................14
Schematic layout of all relevant parts........................................................................................................15
Project 12 amplifier diagram...................................................................................................................... 16
Project 12 protection diagram.................................................................................................................... 17
PCB drawings of Project 12.......................................................................................................................18
Partlist amplifier .........................................................................................................................................19
Partlist protection....................................................................................................................................... 22