Leitch DPS-475 - Chapter 13: Theory of Operations

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Chapter 13:

Theory of Operations

CHAPTER 13: THEORY OF OPERATIONS

85

Table of Contents

Default Chapter3
- Caveats3
- Trademarks3
- Table of Contents5
- Table of Contents7
- Introduction15
Chapter 1: Installation and Configuration17
- Installation17
Chapter 2: Connections19
- Breakout Cables19
  - Multi-I/O Breakout Cable19
  - AES/EBU Audio Breakout Cable [On Audio-Equipped Units Only]19
- Video Connections19
- Audio Connections21
- Remote Control Ports22
Chapter 3: Operation - Front Panel Controls25
- Resetting the Unit26
- Menu Controls26
- Status Indicators28
- Video Input Selection29
- Audio Input Selection29
- Freeze Controls30
- Mode Selection31
- Proc Amp Controls and User Keys32
- Automatic Proc Amp Setup ("Gimme Bars")32
- DV Control Mode34
- User-Programmable Keys35
- Power-Up Keys35
Chapter 4: Menu Overview and Feature Cross-Reference37
- Menu Controls37
  - Moving through the Menus37
  - Changing Parameters37
- Menu Tree38
- Feature Cross-Reference43
Chapter 5: Menus: Video Setup47
- Luma Gain47
- Black Level47
- Chroma Gain47
- Hue Phase47
- Color Balance - Cb47
- Color Balance - Cr48
- Video AGC48
- AGC Bias48
- Input H-Position48
- Input Y/C Delay48
- Sync Mode48
- 3D Comb Decoder49
- 3D Chroma Motion Bias49
- Comb Decoder50
- Digiduplex Mode50
- Self Setup to Bars51
- More Video Settings51
Chapter 6: Menus: Audio Setup59
- Channel 1 Only, Channel 2 Only, both Channels59
- Global Audio Config65
Chapter 7: Menus: Keyer Setup73
- Fade out73
- Cut out73
- Fade in73
- File73
- Settings74
- Change Settings74
Chapter 8: Menus: Noise Reduction77
- Noise Reduction77
- Split Screen77
- Spatial Filter77
- Spatial Filter MIX78
- Horizontal Bandwidth78
- Vertical Bandwidth-Y78
- Vertical Bandwidth-C79
- Temporal NR-Luma79
- Temporal NR-Chroma79
Chapter 9: Menus: DV Control81
Chapter 10: Menus: Timing Setup83
- Genlock83
- Subcarrier Phase83
- Horizontal83
Chapter 11: Menus: Tsg/Image Grabbing85
- Grab 10-Bit Video85
- Grab 8-Bit Video85
- Grab Linear Key85
- Grab & Apply Luma Key86
- Luma Key Gain86
- Threshold86
Chapter 12: Menus: System Config87
- Line Standard (525/625) [DPS-575 Only]87
- Misc. Setup87
- One-Time Video Setup91
- Remote Control Setup93
- Flash Memory Mgmt96
Chapter 13: Theory of Operations99
- Audio Synchronizer Module102
Chapter 14: Test/Alignment Procedures - Video115
- Test Equipment Required115
- General Procedures116
- Calibration: NTSC119
- Calibration: PAL121
Chapter 15: Test/Alignment Procedures - Audio125
- Test Equipment Required125
- Basic Parameters126
- Visual Inspection and Power-Up Test127
- Initialising the Audio Sub-System128
  - Programming the CPLD128
  - Verifying the FPGA128
- The Analogue Audio Interface128
- The Digital Audio Interfaces130
Chapter 16: Schematics133
- DPS-475/575 Main Board133
- DPS-475/575 Front Panel154
- DPS-475/575 Rear Connector155
- DPS-475/575 Audio Synchronizer Module156
- DPS-475/575 Animated Logo Option159
Chapter 17: Bill of Materials161
- 804-575: DPS-475/575 Unit Overview161
- 804-575AV: DPS-475/575AV Unit Overview163
- 843-570: Main Board Assembly165
- 843-571: Front Panel Assembly189
- 843-572: Rear Panel Assembly191
- 843-573: Audio Synchronizer Module192
- 843-574: Animated Logo Option Assembly202
- 843-575: Shaft Encoder Assembly202
Appendix A: Specifications203
- Video Specifications203
- Audio Specifications204
- General Specifications205
Appendix B: Test Signals207
Appendix C: Installation of Hardware Options209
- Precautions209
- Starting the Installation210
- Installation of DV I/O Option Board210
- Installation of Audio Synchronizer Module211
- Removal of Audio Synchronizer Module213
- Installation of Animated Logo Option Board213
- Completing the Installation214
Appendix D: the Uploader Software215
- Software Installation215
- Starting the Software215
- Using the Software215
  - Uploading Files217
  - Converting Files217
- Field Ordering in Stills and Animations220
- Maximum Animation Sequence Length and Frame Size221
Appendix E: Digiduplex Mode223
- What Is Digiduplex223
- Controlling the Digiduplex Signal Path223
  - Video224
  - Audio225
- Configuration Example226
Appendix F: Ethernet Control229
- Configuring Ethernet Control229
- Web Browser Control229
Appendix G: Remote Control Protocol233
Appendix H: Cable Pinouts235
- Video Cable235
- Audio Cable (Standard)236
- Audio Cable (Optional)237
Appendix I: Important Addresses and Phone Numbers239
- Internet239
- Canada239
- USA & Latin America239
- Europe239
- Asia and the Pacific Rim240
Appendix J: a Brief History of DPS245
Appendix K: Warranty245
- Warranty Statement245
Appendix L: Compliance247
- FCC Compliance Statement247

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