Harris Platinum Series Manuals

Manuals and User Guides for Harris Platinum Series. We have 1 Harris Platinum Series manual available for free PDF download: Technical Manual

Harris Platinum Series Technical Manual

Harris Platinum Series Technical Manual (158 pages)

Television transmitters

Brand: Harris | Category: Transmitter | Size: 1 MB

Table of Contents

Table of Contents
10
Section I

13
- General Description
  13
  - AC Power Distribution
    13
  - Transmitter Control System
    13
  - Display Panel
    13
  - Fault Indicators
    13
  - Main Controller
    13
  - Slave Controllers
    13
  - Volt Power Supplies
    15
  - RF Amplifier Modules
    15
  - Visual Signal Flow Path
    15
  - Aural Signal Path
    17
  - Transmitter Output Networks
    18
- Introduction
  13
- Specifications
  18
Installation

23
- Installation Planning
  23
  - Space Requirements
    23
  - Weights
    23
  - RF System Layout
    23
  - Air System
    23
  - Electrical Power
    23
  - Circuit Breaker Selection
    24
  - Starting Surge Requirement
    24
  - Power Input Isolation
    24
  - Disconnect Location
    24
- Introduction
  23
- Unpacking and Equipment Inventory
  24
  - Inventory and Inspection
    24
  - Equipment Required for Unloading
    24
- Cabinet Placement and Leveling
  25
- Grounding
  25
- Installation of 50 Volt Supplies
  25
  - Tap Transformers
    26
- Input Signal Wiring
  26
- Inter-Cabinet Wiring
  26
- Interlocks and Interfaces
  26
- Primary Wiring
  26
- RF Output Coax
  26
- Transmitter Check out
  29
- Initial Application of RF Power
  31
  - 2.12.5.1 Visual
    31
  - Aural
    32
Operation, Controls, and Indicators

33
- Control Cabinet
  33
  - Cabinet Circuit Breaker
    33
  - Front Panel Pushbutton Switches
    33
  - Fault Status Indicators
    33
  - User Display Panel
    34
  - Detailed Screen Descriptions
    36
  - Exciter Switcher (Optional)
    45
- AGC Module
  46
- Phase and Gain Module
  47
- Exciter Operation
  49
  - Controls and Indicators
    49
- PA Cabinets
  49
  - Circuit Breakers
    49
  - Slave Controller
    49
  - RF PA Module LED Display
    50
  - 50 Volt Power Supplies
    50
- Operation
  50
  - Turn on Sequence
    50
  - Turn off Sequence
    50
  - Power RAISE/LOWER
    51
Theory of Operation

53
- Introduction
  53
- RF Circuits
  53
  - Exciter
    53
  - Exciter Switcher (Optional)
    53
  - Hybrids
    53
  - AGC Module
    54
  - Phase and Gain Module
    54
  - Preamp
    55
  - Cabinet-Level Splitter and Combiner Circuits
    55
  - Control Circuits
    56
- Basler 50 Volt DC Power Supply
  60
Maintenance

67
- Air Filter Replacement
  67
- Air Switch Adjustment
  67
- Introduction
  67
- Check Connections
  69
- Cleaning
  69
- Fan Motor Currents
  69
- Motor Lubrication
  69
- Annual and Leap Year Clock Adjustment
  70
- Inspect Movs
  70
- Recommended Test Equipment
  70
- RF Power Measurements
  70
- Power Calibrations
  71
  - Mulas
    71
  - Directional Coupler Alignment
    72
  - Peak Detector Bias
    72
  - Reflected Power Peak Detector Calibration
    72
- Visual RF Power Calibration
  72
- WARNING: Disconnect Primary Power Prior to Servicing
  72
  - Single-Cabinet Transmitters
    72
  - HT20, HT30, HT60 Transmitters
    73
  - HT45 Transmitters
    73
- Aural RF Power Calibration
  74
  - Kw Transmitters
    74
  - 45 Kw Transmitters
    75
- Reject Load Calibration
  75
  - 60 Kw Transmitters
    76
- AC Line Sample Calibration
  78
- AGC Setup
  78
- Lamp Test
  78
- Monitor Configuration Switches
  78
- Slave Addressing
  78
- Slave Analog Channels Calibration
  78
- VSWR Protection Adjustments
  78
- Slave Controller RF Detectors
  79
  - Slave Controller
    79
  - Visual Driver Calibration
    79
Troubleshooting

81
- Cabinet Complete Power down
  81
- Contents of Raw Data Screens
  81
- Introduction
  81
- Monitor System ABORT
  81
- Monitor System RESET
  81
- Volt Power Supply Troubleshooting
  81
- Main Raw Data Screen Information
  82
- Slave Raw Data Screen Information
  83
Transmitter Parts List

85
PA Amplifier Module Parts List

113
Appendix A RF Amplifier Modules, Platinum Series

135
- General Information
  135
  - Factory Module Repair
    135
  - Local Module Repair
    135
- RF Amplifier Modules Theory of Operation
  135
  - Driver Module, Low Band
    136
  - Driver Module, High Band
    136
  - PA Module
    138
  - RF Quarter Modules
    138
  - Low Band Quarter Module
    138
  - High Band Quarter Module
    139
  - Quarter Module Bias
    139
  - Protection, Control and Monitor Subsystem
    139
  - Module Status Leds
    140
- Module Troubleshooting
  140
- Parts Replacement Procedures
  146
  - Soldering Precautions
    146
  - Quarter Module Replacement
    147
  - RF FET Replacement
    147
  - Testing and Replacing Isolation Resistors
    148
  - Pass FET Replacement
    148
  - Chip Cap Replacement
    149
- Test Procedure Solid State TV Modules
  149
  - Pre-Operational Checks
    149
  - RF Testing
    149
Appendix B Air Conditioning Considerations

155
- Air Conditioning
  155
- Heat Load Estimate Guide
  155
Appendix C Surge and Lightning Protection and Grounding Considera

157
- Surge and Lightning Protection
  157
- System Grounding
  157
  - Ground Wires
    157
  - AC Ground
    157
  - DC Ground
    158
  - Earth Ground
    158
  - RF Ground
    158

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