Leitch DPS-475 - Page 12

Basic Parameters ..........................................................................................................112
DPS-475 Test Bench Unit .......................................................................................112
DPS-470 De-Tuned Reference ................................................................................113
Audio Precision ......................................................................................................113
Visual Inspection and Power-Up Test ..........................................................................113
Visual Inspection ....................................................................................................113
Installation of the card ...........................................................................................113
Apply Initial Power ................................................................................................113
Initialising the Audio Sub-system ................................................................................114
Programming the CPLD ........................................................................................114
Verifying the FPGA ................................................................................................114
The Analogue Audio Interface .....................................................................................114
Bypass Relays .........................................................................................................114
Input Termination Relays .......................................................................................115
Output Driver Calibration .....................................................................................115
Input Receiver Calibration .....................................................................................115
Specifications ..........................................................................................................115
Remaining Audio Channels ....................................................................................116
The Digital Audio Interfaces ........................................................................................116
Bypass Relays .........................................................................................................117
AES/EBU output modes ..........................................................................................117
SDI Embedding and DigiDuplex ............................................................................117
Auto-Track ..............................................................................................................117
Chapter 16: Schematics...................................................................................119
DPS-475/575 Main Board.............................................................................................119
DPS-475/575 Front Panel .............................................................................................140
DPS-475/575 Rear Connector.......................................................................................141
DPS-475/575 Audio Synchronizer Module ..................................................................142
DPS-475/575 Animated Logo Option...........................................................................145
Chapter 17: Bill of Materials .........................................................................147
804-575: DPS-475/575 Unit Overview .......................................................................147
804-575AV: DPS-475/575AV Unit Overview .............................................................149
843-570: Main Board Assembly .................................................................................151
843-571: Front Panel Assembly ..................................................................................175
843-572: Rear Panel Assembly ...................................................................................177
843-573: Audio Synchronizer Module ........................................................................178
843-574: Animated Logo Option Assembly ...............................................................188
843-575: Shaft Encoder Assembly .............................................................................188
Appendix A: Specifications ............................................................................189
Video Specifications ....................................................................................................189
Audio Specifications ....................................................................................................190
General Specifications .................................................................................................191
Appendix B: Test Signals ................................................................................193
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DPS-475/575 Service Manual