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X75HD/X75SD Installation and Operation Manual 287

Appendix C: Servicing

Figure C-23 shows the transfer function of the Audio Limiter:

Figure C-23. Audio Limiter Transfer Function

Input (dB)

Output (dB)

Threshold

Slope = 1.0

Slope = 0.5

Slope = 0.0

Slope = 0.75

Slope = 0.25

Table of Contents

Contents5
Preface15
- Manual Information15
- Writing Conventions16
- Obtaining Leitch Documents16
- Unpacking/Shipping Information17
- Safety Terms and Symbols18
  - Terms and Symbols Used in this Manual18
  - Terms and Symbols Found on the Product18
Section I-Startup19
Ch.1: Introduction21
- Overview21
- General Description22
- Main Features24
- Front and Rear Panels27
  - Front Panel Description27
  - Rear Panel Description27
- Product Packages30
  - Available Packages30
  - Options35
- Typical Control Configurations41
- Overview of Operating Modes43
Ch.2: Applications53
- Overview53
- Input Video Processing54
- Output Video Processing61
- Input Video and Audio Processing62
- Video and Audio Converting65
- Bridging Router Switchers67
- Simulcast Switching68
Ch.3: Module and Back Panel Descriptions69
- Overview69
- X75OPT-AS-16/X75OPT-AS-8 Modules and Back Panels70
- X75OPT-A3D Module and Back Panel76
  - General Description76
  - Special Control Considerations77
- X75OPT-PQM Module and Back Panel78
- X75HD Module and Back Panel81
  - General Description81
  - Special Control Considerations82
- X75OPT-STR Module and Back Panel83
  - General Description83
  - Minimum Requirements84
Ch.4: System Installation and Connections85
- Overview85
- Checking the Packing List86
- Preparing for Installation88
  - Meeting Electrical Requirements88
  - Meeting Environmental Requirements88
- Installing Rack Support Brackets and Cable Relief Bar90
- Making Cable and System Connections93
Ch.5: Initial Configuration103
- Overview103
- Initial Power-Up and Control Steps104
- Configuring Network Settings106
- Changing the PC Network Settings110
- Remotely Controlling X75HD/X75SD Systems113
- Processing Modes119
- Configuring Video123
  - Selecting a Video Source123
  - Adjusting Video Levels124
- Configuring Audio125
- Configuring the GPI126
- Configuring an X75OPT-A3D-1 Module127
- Launching QuickTime Player for Streaming Video128
  - CCS Navigator Streaming Installation128
Section II-Operation131
Ch.6: Operation via Front Panel Controls133
- Overview133
- Front Panel Description134
- Using the Control Knob and Menu Control Buttons135
- Getting Visual Feedback: Status and Alarm LEDs140
- Video Input LEDs144
- Audio Input LEDs144
- Control Mode Status LEDs145
Ch.7: Web Server Software Control147
- Overview147
- Launching the Web Server Software148
- Controlling Devices149
  - Navigating from the Main Menu Page149
  - Setting a Selected Value152
- Navigating Menus and Options via the Menu Navigation Tree155
- Monitoring Alarms156
  - Thumbnail Streaming156
- Getting Help159
Ch.8: Video Configuration161
- Overview161
- Selecting a Video Source162
  - General Information162
  - Procedure163
- Adjusting Video Levels164
- Video/Audio Timing Tool165
Ch.9: Audio Configuration169
- Overview169
- General Information170
- Selecting an Audio Source171
- Adjusting Audio Levels173
- Audio LED and Buttons Map174
Ch.10: Special Function Buttons181
- Overview181
- Using the Freeze Control183
- Using Proc Amp Controls184
  - Video Proc Amp184
  - Audio Proc Amp185
- Using the Memory Function190
- Using the FAV1 and FAV2 Function194
- Using the Bypass Function196
- Using the Mo/St Button Function196
- Using the Noise Reduction196
  - SD NR/Enhancement197
  - HD NR/Enhancement197
- Using the Test Signal Generator198
- Using the ARC Function202
  - ARC (HD-SDI Out)203
  - ARC (SD-SDI Out)203
- Using the Timing Control206
- Using Option Controls206
- Rebooting Shortcut208
- Display Screen Setup Parameters209
Section III-Appendixes211
App.A: Cables and Pinouts213
- Overview213
- Summary of Cables and Cable Sets214
- Analog Audio Connections220
- Multi I/O Cable (X75OPTCAB-MULTI)221
- DVI-D Output Cable (X75OPTCAB-DVI)223
- Audio Coax Cable (X75OPTCAB-8-C)224
- Audio Coax Cable (CAB-X75HD-COAX)226
- Audio BNC/XLR Cable (X75OPTCAB-8-XC)228
- Audio BNC/XLR Cable (CAB-X75HD-COMBO)231
- Optional Audio XLR Cable (X75OPTCAB-8-X)234
- Optional Audio XLR Cable (X75OPTCAB-XLR)236
App.B: Troubleshooting239
- Overview239
- Network Connectivity240
  - Forgotten IP address240
  - No response to SNMP Walk command242
- Front Panel Display243
- Video Conversion249
  - Performing an HD cross-conversion but can’t see the down-converted signal249
  - Won’t perform up and down conversions simultaneously251
- Audio253
- Alarms258
  - Major and Minor Alarms are on258
- Softkey Installation260
  - Can’t activate softkeys260
- Flash Memory262
  - Flash memory is locked262
- Upgrading Firmware265
- Troubleshooting the Software Installation271
App.C: Servicing273
- Overview273
- Safety Precautions274
  - Laser Caution274
  - ESD Caution274
- Understanding and Working With Fiber Optics275
- Preparing the X75HD/X75SD for Servicing279
- Common Replacement Part Numbers280
- Installing the X75OPT-HDDUOCON Software Key280
- Installing a Frame-Mounted Local Control Panel281
- Installing and Removing an Audio Synchronizer Module282
  - Installing a New Module282
  - Removing an Existing Module286
- Installing and Removing HDTV Modules287
  - Installing a New Module287
  - Removing an Existing Module291
- Installing and Removing X75OPT-A3D or X75OPT-PQM Modules292
  - Installing a New Module292
  - Removing an Existing Module296
- Installing and Removing the Streaming Module297
- Installing Noise Reduction, Auto Audio/Video Timing, and Audio Limiter Software Options303
  - Installing a Software Option303
  - Operating the X75OPT-AS-16 /8-L Audio Limiters303
- Installing a Dolby Decoder Module306
- Replacing a Power Supply308
- Installing a Redundant Power Supply311
- Installing Fans317
App.D: Software321
- Overview321
- Upgrading Module Firmware322
  - Upgrading the Firmware322
- Configuring SNMP Support329
  - Configuring Third-Party SNMP Software Control333
- Monitoring and Control Using Leitch MIBs335
App.E: Alarms339
- Overview339
- Configure Alarms Options340
- Alarms List341
App.F: Specifications349
- Overview349
- Video Specifications350
  - Input350
  - Output354
- Audio Specifications358
  - Input358
  - Output359
- I/O Specifications361
- Communication Specifications362
- Hardware Specifications363
- Power Consumption364
- HD Conversion Capabilities367
- Video Propagation Delay367
  - Video Path370
Index373
- Keywords373

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