Harris Maxiva ULX

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4-52 888-2629-200 10/6/10

WARNING: Disconnect primary power prior to servicing.

Section 4 Theory of Operation

Maxiva ULX COFDM Series

Main Page

Table of Contents15
Purpose of this Manual19
General Description20
- Maxiva COFDM Series Transmitter Models22
- System Block Diagram22
- Transmitter Control System23
- Transmitter RF Power Control25
  - Graphical User Interface25
- Control System Communications25
  - Software Updates26
  - Remote Control26
- PA Module26
  - Module Control30
- Transmitter Power Supplies31
- Cooling System31
- M2X Multimedia Exciter40
General Specifications41
- Installation43
Introduction43
Documentation43
- Installation Drawings44
Installation Steps47
Transmitter Cabinet Placement48
Cooling System Installation48
- Heat Exchanger and Pump Module Installation49
- Calculation of Cooling System Capacities51
- Rigging Heat Exchanger & Pump Module53
- Initial Inspection53
- Module53
- Liquid Cooling System Plumbing Installation56
- Pump Module & Heat Exchanger Electrical58
Transmitter AC Connection62
- Safety Ground63
  - AC Connections Procedure64
  - Checking AC Configuration66
    - TB1 TB2 Jumpers 1 Cabinet 10 -16 Modules66
    - TB1 TB2 Jumpers 1 Cabinet 1 - 8 Modules66
Signal and Ground Connections71
Intercabinet Connections74
External Interlock Connections74
- Interlock Connector on Customer I/O Panel74
- Fault-Off Interlocks (Safety Interlocks)74
- RF Mute External Interlock Connections (J2)75
Port Patch Panel Connections76
Initial Cooling System Turn on76
- Heat Exchanger & Pump Module Start-Up and Maintenance78
Install PA Modules87
Initial Turn-On89
Final Cooling System Turn on92
- Setting the Transmitter Flow Rate93
Individual Transmitter Parallel Remote Control99
- Connections99
Install Battery in TCU PCM Card105
- Operation107
Introduction107
Transmitter Control Panel107
- Hardware Control Buttons108
Graphical User Interface (GUI)110
- Global Status and Navigation110
GUI Home Screen113
Drive Chain Main Menu115
- Drive Chain Faults116
- Drive Chain Meters117
Power Amp Main Menu119
- PA Faults120
Output Main Screen121
- Output Faults122
Power Supply Main Menu123
- PS Faults124
System Main Menu125
- System Faults126
- System Fault Log126
- System Service128
GUI Menu Structures135
- Theory of Operation137
Introduction137
- Active Logic Symbols137
Block Diagram Descriptions138
AC Distribution139
Transmitter Control System140
- Graphical User Interface (GUI)140
- Transmitter RF Power Control141
- TCU Control143
- Life Support Functions158
- Controller Area Network (CAN) Bus160
- System Bus161
- Cabinet Bus162
- Parallel Control Lines163
Customer I/O Board164
Transmitter RF System165
- Apex M2X Exciter(S)165
- Predriver165
- IPA (Driver) and PA Module169
- Module Combiner179
Cooling System180
- Heat Exchanger/Pump Module Diagrams180
- Leak Detector and Cabinet Drains184
Maxiva 16 Module Transmitter Diagrams185
- RF Block Diagram185
  - Maintenance and Alignments189
Introduction189
PA Module Removal and Replacement189
- PA Slot Locations190
- PA Module Removal191
- PA Module Installation192
- Operation with Inoperative PA Modules194
- PA Module/Rack Alignment194
PA Module Bias197
PA Module Phasing197
PA Module Component ID197
PA and IPA (Driver) Pallet Replacement199
PA Module AC/DC Converter (PS) Board201
- PS Board Removal and Replacement201
- AC/DC Converter (PS) Board Output Voltage202
  - Setting Voltage202
Power Calibrations203
- Forward Power Calibration203
  - Calibrate Forward Total Power204
  - Calibrate Forward Cabinet Power206
- Reflected Power Calibrate206
  - Calibrate Reflected Total Power207
  - Calibrate Reflected Cabinet Power208
- Exciter Output Calibration209
- PDU Calibration209
- Threshold Settings210
PA Cabinet Fan Replacement213
- Cabinet Fan Removal213
PA Cabinet RF System Removal215
- RF System Removal215
Miscellaneous Maintenance222
- Cooling System Checks222
- Air Filter Replacement226
- LCD Screen Adjustments227
- Changing the Battery on the PCM Card228
  - PCM Battery Installation Instructions229
- TCU Card Replacement233
  - MCM Card Replacement234
Typical Test Equipment235
Introduction237
GUI System Log238
Maxiva Three-Strike Fault Actions239
- Reflected Power Faults239
- Module Faults240
Fault Tables241
- Parts List251
Replaceable Parts List251
Heat Exchanger/Pump Module Replacement Parts263
Appendix-A267
Cutting & Soldering Transmission Line267
Appendix-B277
Cooling System Help277
Appendix-C297
Grounding Considerations, Surge & Lightning Protection297
Appendix-D301
Lightning Protection Recommendation301

Harris Maxiva ULX - Page 188

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