GatesAir ULXATSC Maxiva ULX ATSC Series Digital Transmitter User Manual 2715

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Maxiva ULX ATSC Series Digital TransmitterUser MANUAL888-2715-001Maxiva ULX ATSC SeriesDigital TransmitterFebruary 19, 2010Rev: AT.M. No. 888-2715-001 © Copyright Harris Corporation 2010 All rights reserved

ii 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

2/19/10 888-2715-001 iii WARNING: Disconnect primary power prior to servicing.Technical AssistanceTechnical and troubleshooting assistance for HARRIS Transmission products is available from HARRIS Field Service (factory location: Quincy, Illinois, USA) during normal business hours (8:00 AM - 5:00 PM Central Time). Telephone +1-217-222-8200 to contact the Field Service Department; FAX +1-217-221-7086; or E-mail questions to tsupport@harris.com. Emergency service is available 24 hours a day, seven days a week, by telephone only. On-line assistance, including technical manuals, white papers, software downloads, and service bulletins, is available at http://support.broadcast.harris.com/eservice_enu. Address written correspondence to Field Service Department, HARRIS Broadcast Communications Division, P.O. Box 4290, Quincy, Illinois 62305-4290, USA. For other global service contact information, please visit: http://www.broadcast.harris.com/contact. NOTE: For all service and parts correspondence, you will need to provide the Sales Order number, as well as the Serial Number for the transmitter or part in question. For future reference, record those numbers here: ___________________/____________________ Please provide these numbers for any written request, or have these numbers ready in the event you choose to call regarding any Service, or Parts requests. For warranty claims it will be required, and for out of warranty products, this will help us to best identify what specific hardware was shipped.Replaceable Parts ServiceReplacement parts are available from HARRIS Service Parts Department from 7:00 AM to 11:00 PM Central Time, seven days a week. Telephone +1-217-222-8200 or email servicepartsreq@harris.com to contact the Service Parts Department. Emergency replacement parts are available by telephone only, 24 hours a day, seven days a week by calling +1-217-222-8200.UnpackingCarefully unpack the equipment and preform a visual inspection to determine if any apparent damage was incurred during shipment. Retain the shipping materials until it has been verified that all equipment has been received undamaged. Locate and retain all PACKING CHECK LISTs. Use the PACKING CHECK LIST to help locate and identify any components or assemblies which are removed for shipping and must be reinstalled. Also remove any shipping supports, straps, and packing materials prior to initial turn on.Returns And ExchangesNo equipment can be returned unless written approval and a Return Authorization is received from HARRIS Broadcast Communications Division. Special shipping instructions and coding will be provided to assure proper handling. Complete details regarding circumstances and reasons for return are to be included in the request for return. Custom equipment or special order equipment is not returnable. In those instances where return or exchange of equipment is at the request of the customer, or convenience of the customer, a restocking fee will be charged. All returns will be sent freight prepaid and properly insured by the customer. When communicating with HARRIS Broadcast Communications Division, specify the HARRIS Order Number or Invoice Number.

iv 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

2/19/10 888-2715-001 MRH-1WARNING: Disconnect primary power prior to servicing.Manual Revision HistoryMaxiva ULX ATSC Series Digital Transmitter User ManualREV. DATE ECN Pages AffectedAFEB 2010 -Created

MRH-2 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

2/19/10 888-2715-001 vii WARNING: Disconnect primary power prior to servicing.Guide to Using Harris Parts List InformationThe Harris Replaceable Parts List Index portrays a tree structure with the major items being leftmost in the index. The example below shows the Transmitter as the highest item in the tree structure. If you were to look at the bill of materials table for the Transmitter you would find the Control Cabinet, the PA Cabinet, and the Output Cabinet. In the Replaceable Parts List Index the Control Cabinet, PA Cabinet, and Output Cabinet show up one indentation level below the Transmitter and implies that they are used in the Transmitter. The Controller Board is indented one level below the Control Cabinet so it will show up in the bill of material for the Control Cabinet. The tree structure of this same index is shown to the right of the table and shows indentation level versus tree structure level.Example of Replaceable Parts List Index and equivalent tree structure:Replaceable Parts List Index Part Number Page Table 7-1. Transmitter 994 9283 001 7-2 Table 7-2. Control Cabinet 992 9244 002 7-3 Table 7-3. Controller Board 992 8344 002 7-6 Table 7-4. PA Cabinet 992 9400 002 7-7 Table 7-5. PA Amplifier 994 7894 002 7-9 Table 7-6. PA Amplifier Board 992 7904 002 7-10 Table 7-7. Output Cabinet 992 9450 001 7-12The part number of the item is shown to the right of the description as is the page in the manual where the bill for that part number starts. Inside the actual tables, four main headings are used:•Table #-#. ITEM NAME - HARRIS PART NUMBER - this line gives the information that corresponds to the Replaceable Parts List Index entry;•HARRIS P/N column gives the ten digit Harris part number (usually in ascending order);•DESCRIPTION column gives a 25 character or less description of the part number;•REF. SYMBOLS/EXPLANATIONS column 1) gives the reference designators for the item (i.e., C001, R102, etc.) that corresponds to the number found in the schematics (C001 in a bill of material is equiva-lent to C1 on the schematic) or 2) gives added information or further explanation (i.e., “Used for 208V operation only,” or “Used for HT 10LS only,” etc.).NOTE: Inside the individual tables some standard conventions are used:•A # symbol in front of a component such as #C001 under the REF. SYMBOLS/EXPLANATIONS col-umn means that this item is used on or with C001 and is not the actual part number for C001.•In the ten digit part numbers, if the last three numbers are 000, the item is a part that Harris has pur-chased and has not manufactured or modified. If the last three numbers are other than 000, the item is either manufactured by Harris or is purchased from a vendor and modified for use in the Harris product.•The first three digits of the ten digit part number tell which family the part number belongs to - for example, all electrolytic (can) capacitors will be in the same family (524 xxxx 000). If an electrolytic (can) capacitor is found to have a 9xx xxxx xxx part number (a number outside of the normal family of numbers), it has probably been modified in some manner at the Harris factory and will therefore show up farther down into the individual parts list (because each table is normally sorted in ascending order). Most Harris made or modified assemblies will have 9xx xxxx xxx numbers associated with them.The term “SEE HIGHER LEVEL BILL” in the description column implies that the reference designated part number will show up in a bill that is higher in the tree structure. This is often the case for components that may be frequency determinant or voltage determinant and are called out in a higher level bill structure that is more customer dependent than the bill at a lower level. Transmitter994 9283 001Control Cabinet 992 9244 002Controller Board 992 8344 002 PA Cabinet992 9400 002PA Amplifier992 7894 002PA Amplifier Board 992 7904 002Output Cabinet 992 9450 001

viii 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

2/19/10 888-2715-001 ix WARNING: Disconnect primary power prior to servicing.

x 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

2/19/10 888-2715-001 xi WARNING: Disconnect primary power prior to servicing.! WARNING:TTHE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE DANGEROUS. PERSONNEL MUST AT ALL TIMES OBSERVE SAFETY WARNINGS, INSTRUC-TIONS AND REGULATIONS.This manual is intended as a general guide for trained and qualified personnel who are aware of the dangers inherent in handling potentially hazardous electrical/electronic circuits. It is not intended to contain a complete statement of all safety precautions which should be observed by personnel in using this or other electronic equipment.The installation, operation, maintenance and service of this equipment involves risks both to personnel and equipment, and must be performed only by qualified personnel exercising due care. HARRIS CORPORATION shall not be responsible for injury or damage resulting from improper procedures or from the use of improperly trained or inexperienced personnel performing such tasks. During installation and operation of this equipment, local building codes and fire protection standards must be observed.The following National Fire Protection Association (NFPA) standards are recommended as reference:- Automatic Fire Detectors, No. 72E- Installation, Maintenance, and Use of Portable Fire Extinguishers, No. 10- Halogenated Fire Extinguishing Agent Systems, No. 12A! WARNING:ALWAYS DISCONNECT POWER BEFORE OPENING COVERS, DOORS, ENCLO-SURES, GATES, PANELS OR SHIELDS. ALWAYS USE GROUNDING STICKS AND SHORT OUT HIGH VOLTAGE POINTS BEFORE SERVICING. NEVER MAKE INTERNAL ADJUSTMENTS, PERFORM MAINTENANCE OR SERVICE WHEN ALONE OR WHEN FATIGUED.Do not remove, short-circuit or tamper with interlock switches on access covers, doors, enclosures, gates, panels or shields. Keep away from live circuits, know your equipment and don’t take chances.! WARNING:IN CASE OF EMERGENCY ENSURE THAT POWER HAS BEEN DISCONNECTED.! WARNING:IF OIL FILLED OR ELECTROLYTIC CAPACITORS ARE UTILIZED IN YOUR EQUIPMENT, AND IF A LEAK OR BULGE IS APPARENT ON THE CAPACITOR CASE WHEN THE UNIT IS OPENED FOR SERVICE OR MAINTENANCE, ALLOW THE UNIT TO COOL DOWN BEFORE ATTEMPTING TO REMOVE THE DEFEC-TIVE CAPACITOR. DO NOT ATTEMPT TO SERVICE A DEFECTIVE CAPACITOR WHILE IT IS HOT DWHILE IT IS HOT DUE TO THE POSSIBILITY OF A CASE RUP-TURE AND SUBSEQUENT INJURY.

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2/19/10 888-2715-001 xiii WARNING: Disconnect primary power prior to servicing.FIRST-AIDPersonnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with first-aid theory and practices. The following information is not intended to be complete first-aid procedures, it is a brief and is only to be used as a reference. It is the duty of all personnel using the equipment to be prepared to give adequate Emergency First Aid and there by prevent avoidable loss of life.Treatment of Electrical Burns1. Extensive burned and broken skina. Cover area with clean sheet or cloth. (Cleanest available cloth article.)b. Do not break blisters, remove tissue, remove adhered particles of clothing, or apply any salve or ointment.c. Treat victim for shock as required.d. Arrange transportation to a hospital as quickly as possible.e. If arms or legs are affected keep them elevated.NOTE:If medical help will not be available within an hour and the victim is conscious and not vomiting, give him a weak solution of salt and soda: 1 level teaspoonful of salt and 1/2 level teaspoonful of baking soda to each quart of water (neither hot or cold). Allow victim to sip slowly about 4 ounces (a half of glass) over a period of 15 minutes. Discontinue fluid if vomiting occurs. (Do not give alcohol.)2. Less severe burns - (1st & 2nd degree)a. Apply cool (not ice cold) compresses using the cleanest available cloth article.b. Do not break blisters, remove tissue, remove adhered particles of clothing, or apply salve or ointment.c. Apply clean dry dressing if necessary.d. Treat victim for shock as required.e. Arrange transportation to a hospital as quickly as possible.f. If arms or legs are affected keep them elevated.REFERENCE:ILLINOIS HEART ASSOCIATION AMERICAN RED CROSS STANDARD FIRST AID AND PERSONAL SAFETY MANUAL (SECOND EDITION)

xiv 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.

Table of Contents 1Section 1IntroductionPurpose of This Manual . . . . . . . . . . . . . . . . . . . . 1-1General Description. . . . . . . . . . . . . . . . . . . . . . . . 1-2Maxiva ATSC Series Transmitter Models . . . . . 1-4System Block Diagram. . . . . . . . . . . . . . . . . . . . 1-4Transmitter Control System . . . . . . . . . . . . . . . . 1-5Transmitter RF Power Control . . . . . . . . . . . . . . 1-7Graphical User Interface . . . . . . . . . . . . . . . . . . . . . .1-7Control System Communications. . . . . . . . . . . . 1-7Software Updates. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8PA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8Module Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12Transmitter Power Supplies . . . . . . . . . . . . . . . 1-13Cooling System. . . . . . . . . . . . . . . . . . . . . . . . . 1-13Cooling System Control Panel . . . . . . . . . . . . . . . .1-15Pump Module/Heat Exchanger . . . . . . . . . . . . . . . .1-18Heat Exchanger Fan Control. . . . . . . . . . . . 1-19Pump Operation/Control Logic. . . . . . . . . . 1-19PA Module and Combiner Cold Plates . . . . . . . . . .1-20M2X Multimedia Exciter . . . . . . . . . . . . . . . . . 1-22General Specifications. . . . . . . . . . . . . . . . . . . . . 1-23Section 2OperationIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Transmitter Control Panel . . . . . . . . . . . . . . . . . . . 2-1Hardware Control Buttons . . . . . . . . . . . . . . . . . 2-2Graphical User Interface (GUI). . . . . . . . . . . . . . . 2-4Global Status and Navigation. . . . . . . . . . . . . . . 2-4GUI Home Screen. . . . . . . . . . . . . . . . . . . . . . . . . 2-7Drive Chain Main Menu . . . . . . . . . . . . . . . . . . . . 2-9Drive Chain Faults . . . . . . . . . . . . . . . . . . . . . . 2-10Drive Chain Meters . . . . . . . . . . . . . . . . . . . . . 2-11Power Amp Main Menu . . . . . . . . . . . . . . . . . . . 2-13PA Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Output Main Screen . . . . . . . . . . . . . . . . . . . . . . 2-15Output Faults . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Power Supply Main Menu. . . . . . . . . . . . . . . . . . 2-17PS Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18System Main Menu . . . . . . . . . . . . . . . . . . . . . . . 2-19System Faults . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20System Fault Log . . . . . . . . . . . . . . . . . . . . . . . 2-20System Service . . . . . . . . . . . . . . . . . . . . . . . . . 2-22Admin Setup (Local GUI Only) . . . . . . . . . . . . . . .2-23System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-24Cabinet Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25System and Cabinet Power Calibrate . . . . . . . . . . .2-26System Version Screen . . . . . . . . . . . . . . . . . . . . . .2-26System Network Screen . . . . . . . . . . . . . . . . . . . . .2-27GUI Menu Structures . . . . . . . . . . . . . . . . . . . . . .2-28Section 3DiagnosticsIntroduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1GUI System Log . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2Maxiva Three-Strike Fault Actions. . . . . . . . . . . . .3-3Reflected Power Faults. . . . . . . . . . . . . . . . . . . . .3-3Module Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3Fault Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Table of Contents2

2/19/10 888-2715-001 1-1 WARNING: Disconnect primary power prior to servicing.Maxiva ULX ATSC SeriesUser ManualSection 1 Introduction 11.1 Purpose of This ManualThis user manual contains the information pertaining to the Maxiva ULX Series, solid-state, UHF, ATSC digital TV transmitter. The various sections of this technical manual provide the following types of information.•Section 1, Introduction, provides general manual layout, photos, equipment descrip-tion, block diagram and general specifications.•Section 2, Operation, provides operation and navigation information for the Graphi-cal User Interface or GUI as well as identification and functions of all external panel controls and indicators.•Section 3, Diagnostics, provides detailed fault information and diagnostic procedures to the board level.

1-2 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2 General DescriptionThis section contains a general description of the Maxiva ULX Series ATSC digital television transmitters. Included in this section will be descriptions of the Control System, Power Amplifier, block diagrams of the different models and system specifications.Figure 1-1 ULX-12300AT Front ViewRedundant DriversRedundant Pre-Driver AApex M2X Exciter BPA Slots 11-18Apex M2X Exciter ARedundant Pre-Driver BPA Slots 1-8TCU System Controller IPA A (slot 10)1118AB 81 IPA B (slot 9)

2/19/10 888-2715-001 1-3 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual.Figure 1-2 ULX 12300AT Rear ViewUpper 8 Way Combiner3dB CombinerCoolant Hoses In/OutMain BreakersFinal Reject LoadRedundant Cabinet RF Output LineControl BreakersLower 8 Way CombinerBlowers (2)Upper 8 Way SplitterLower 8 Way Splitter

1-4 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.1 Maxiva ATSC Series Transmitter ModelsThe Maxiva ULX Series ATSC transmitter is available in 13 liquid cooled power levels. The models are listed below in Table 1-11.2.2 System Block DiagramFigure 1-3 on page 1-5 contains a system block diagram showing the basic signal flow and configuration for a Model ULX-12300AT Maxiva ATSC transmitter. The block diagram shows the 12.3 kW single cabinet, liquid cooled system with 2 pre-amp modules, 2 driver modules and 16 PA modules. Note that the predriver and driver modules are redundant. Table 1-1 Maxiva ATSC Series Transmitter ModelsTx Models Cabinets PA Modules Output Power Primary CoolingULX1600AT 1 2 1600W LIQUIDULX-2400AT 1 3 2400W LIQUIDULX-3200AT 1 4 3200W LIQUIDULX-4700AT 1 6 4700W LIQUIDULX-6300AT 1 8 6300W LIQUIDULX-7600AT 110 7600W LIQUIDULX-9200AT 112 9200W LIQUIDULX-12300AT 116 12.3 kW LIQUIDULX-13400AT 218(12+6) 13.4 kW LIQUIDULX-17800AT 224(12+12) 17.8 kW LIQUIDULX24600AT 232(16+16) 24.6 kW LIQUIDULX-25800AT 336(12+12+12) 25.8 kW LIQUIDULX-36900AT 348(16+16+16) 36.9 kW LIQUIDNOTE: All power levels given in average output power before the bandpass filter.

2/19/10 888-2715-001 1-5 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-3 Maxiva ULX-12300AT ATSC Block Diagram1.2.3 Transmitter Control SystemThe Maxiva ATSC transmitter uses a simplified control system that minimizes the number of microprocessors. Each transmitter sub-system is responsible for its own monitoring and protection and simply reports back to the TCU (transmitter control unit) for display on the GUI (Graphical User Interface) or to a remote interface. In multi-cabinet systems the TCU in cabinet 1 functions as the main controller while the TCU in each amplifier cabinet acts as a slave controller. The cabinet 1 TCU will contain the GUI display for the transmitter. Additional PA cabinets do not contain GUI screens.The system bus originates in MCM (master controller module) inside the cabinet 1 TCU and goes to the TCU located in each amplifier cabinet. The system bus is used to transfer telemetry information in between the TCU’s.The cabinet bus is similar to the system bus but it connects the cabinet TCU (MCM card) to all of the nodes inside each individual cabinet. If system bus communications with the master TCU (in cabinet 1) are interrupted the cabinet bus allows each cabinet to operate independently.EX 1EX 2MOV/AC SAMPLINGTCUȈGUIRFSWITCHPS AND COOLING MONITORRFMONITORING÷DIRCOUPLERPUMP CONTROL INTERLOCKSPARALLEL REMOTETO PUMP MODULEPA BusCABINET FLOW METERINLET /OUTLETTEMPLEAKDETECTORI/O PANELTransmitterMain CabinetPAINTERFACEACDistribution BusDriver-PAs16 PA’s CAN BusExciter CAN BusTO OTHERCABINETSN+1 CAN BusTO N+1CONTROLLERINTERLOCKSPARALLEL CONTROLFront Panel ButtonsSystem /CAN BusEthernetEthernetEthernetWebRemote /MonitoringL1L2L3FANSPre-Drivers

1-6 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualThe heart of the control system is the TCU which is responsible for control, monitoring and protection. The TCU contains the MCM (master controller module) which controls all critical transmitter functions and the PCM (processor control module) which provides enhanced monitoring and control, exciter and cabinet data collection, fault logs and web remote connectivity. In addition to the MCM and PCM the Maxiva ATSC main TCU contains six modular cards for the following sub-systems:•PA Interface -Provides interface between TCU, IPA (driver) and PA backplane boards. The interface features 40 digital outputs/inputs and 24 ATSC outputs and inputs. A fully populated cabinet will require two PA interface cards, one card per eight PA modules. The PA interface card sends the ON/OFF commands to the PA modules and receives fault information and status from them.•RF Detector/Pump Control/ Interlocks - Consists of a main board and a daughter card. It features 7 RMS detectors with adjustable trip points (via EPOTS). It has pump control and interlocks on one D25 pin connector.•Customer I/O - Provides parallel remote control, status and meter outputs. Connector A has all inputs and Connector B has all outputs.•Exciter Switch - Contains PWB relay, 2 RMS detectors with adjustable trips (via EPOTs) for power monitoring and a control/status interface for Exciters A and B.•PS Monitor - Monitors AC lines for phase imbalance and high or low voltage, cool-ant inlet/outlet temperature, coolant flow, leaks, combiner temperature and cabinet fans. TCU’s also contain the following components:•Base-Plane - provides a common bus for custom plug-in cards•Power Supply Modules - two redundant internal power supply modules.•Standard Master Control Module (MCM) - FPGA based controller used for all criti-cal transmitter control functions.•LED’s - standard front LED mimic display panel.•Processor Control Module (PCM) - Coldfire based micro module running embedded Linux OS. It provides a touch screen for enhanced monitoring and control, exciter and multi-cabinet data collection, fault logs and web remote connectivity.•Graphical User Interface (GUI) front panel - 5.25" color 1/4 VGA touch screen that is present only in the main TCU (cabinet 1 in multi cabinet systems).In multi-cabinet systems, there is a TCU in every cabinet. Each TCU will always contain an MCM but PA cabinet TCU’s don’t require all TCU cards. The TCU in the first PA cabinet will assume the role of master controller for the system. The TCU’s in the remaining PA cabinets will be slaves.

2/19/10 888-2715-001 1-7 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.4 Transmitter RF Power ControlThe PA modules operate in open loop mode (no gain or level adjustment). The transmitter RF power control is done via the Phase and Gain Board located in the predriver modules. The predrivers are the only components in the drive chain (besides the exciter) capable of adjusting their RF power based on commands from the TCU.Each cabinet can also be placed in the "Manual Power Control Mode". In this mode the automatic level control is disabled.1.2.4.1 Graphical User InterfaceThe TCU front panel (in the control PA cabinet on multi-cabinet transmitters) contains the graphical user interface which is a 5.25" 1/4 VGA, LCD touchscreen display. The touchscreen display uses software buttons to monitor and control the transmitter. Hardware buttons for the primary transmitter functions such as ON, OFF, RAISE and LOWER are provided on the overlay panel next to the display.TCU’s in additional PA cabinets will not be equipped with GUI screens.Figure 1-4 TCU Front Control Panel 1.2.5 Control System CommunicationsThe control system uses a serial communications system called a CAN bus. CAN stands for Controller Area Network. The CAN bus is a closed loop serial network controlled by the main TCU. The CAN bus connects the main TCU with TCU’s in other cabinets. Each TCU board connected to the CAN bus is considered a node and therefore has a specific address. This allows the master TCU to use the system bus to gather information from all parts of the transmitter and display it on the GUI. One big

1-8 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manualadvantage of the CAN bus is that it requires only 2 wires of the system control bus ribbon cable, eliminating a large amount of discrete wiring which would otherwise be required.The system bus ties TCU’s in each cabinet together. The cabinet bus is for the most part a duplicate of the system bus but intended to connect nodes within each individual cabinet. The cabinet bus originates in the MCM module within each TCU. The cabinet bus is designed to keep the PA cabinets operating even if the communications with the master cabinet TCU is lost. 1.2.5.1 Software UpdatesThe use of the CAN bus for communication between the various Micro Modules in the transmitter also allows updating of the software used in each transmitter sub-system via a serial port connection to an external computer.NOTE:Software does not need to be loaded into the transmitter unless new components are installed or an update is sent from Harris. The transmitter, as shipped from the factory, is preloaded and ready to run.1.2.5.2 Remote ControlThe Maxiva Series ATSC transmitter has the basic discrete wired parallel remote control with the standard connections for control, status and analog monitoring located on the customer I/O card inside the main TCU(cabinet 1). Maxiva transmitters include Web enabled remote GUI interface that provides comprehensive remote control and monitoring of data points within the transmitter. It includes an SNMP (Simple Network Management Protocol) manager which allows integration with most Control Systems via the Internet or LAN.1.2.6 PA ModuleThe Maxiva ULX Series PA Module utilizes LDMOS (laterally diffused metal oxide semi-conductor) amplifiers to produce up to 800 W average power output. Each module weighs approximately 22kg and can be removed while the transmitter is running. A single cabinet Maxiva Series transmitter can have 2, 3, 4, 6, 8, 10, 12, or 16 PA modules to achieve the various power levels shown in Table 1-1 page1-4. A simplified block diagram of the PA module is shown in Figure 1-5 on page 1-9.

2/19/10 888-2715-001 1-9 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualThe amplifier and driver modules are interchangeable and do not contain microcontrollers but instead use a CPLD based monitor board in each PA to report faults to the TCU and to take appropriate self-protective action if needed.Figure 1-5 PA Module Simplified Block Diagram

1-10 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-6 Maxiva PA Module (cover removed)The diagnostic port shown in Figure 1-6 allows the operator to connect directly to the PA module with a handheld device and obtain PS voltages, fault status, FWD and REF RF power levels and internal temperatures. The diagnostic port can also be used to reprogram the CPLD as required.8 AC-DC Converter Modules4 RF PalletsStatus LED’sDiagnostic Port

2/19/10 888-2715-001 1-11 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-7 Maxiva ULX PA Module (top view, cover removed)Each PA module consists of the following components:a. Monitor Board - Responsible for all monitoring and protection of the module. Reports to the transmitter TCU via the parallel control lines.b. Connector I/O Board -I/O Connector Board provides interface connections between PA Module and transmitter back plane. The board includes a single hybrid connector on one side and five (5) connectors on the other side. The large hybrid connector interfaces with mating connector on the back plane board. It contains seven (7) AC contacts, twenty four (24) small signal contacts, and a sin-gle RF coaxial connector. c. AC Distribution Board - The AC distribution board provides three phase AC to the eight power supply boards. It also provides AC line filtering, step-start func-tion and transient protection for the module.d. Power Supply Boards - The eight (8) AC/DC power supplies provide 44VDC to 50VDC power to each pair of FET’s on the four (4) PA pallets. Voltage varies with modulation type and channel.Coolant In/OutRF OutCoolantacaghedabfi

1-12 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manuale. Splitter Board - The splitter board equally divides the RF signal between four (4) power amplifier pallets. The splitter is broadband (covers TV band IV/V). The splitter board also delivers a detected RF sample to the monitor board to indicate input power level and provide protection from excessive input drive power.f. Signal Distribution Board - Signal Distribution Board serves to route analog and digital control and monitoring data between four (4) PA module board subassem-blies, monitor board, PA pallets, connector I/O board, and 4-way splitter board.g. LDMOS Amplifier Pallets - There are four (4) single stage amplifier pallets operating in parallel in the PA module. When combined, they provide up to 800 watts of average power at the output of the module.h. Combiner Board - The board combines the RF outputs of the four (4) amplifier pallets, and delivers the combined signal to the output port. The combiner is broadband (covers the entire TV Band IV/V) and requires no tuning. The com-bining of the signals is accomplished using hybrid combiners in series. The first stage is a 2-way 3dB hybrid, the second stage a 2-way 4.77dB hybrid, and the 3rd stage is a 2-way 6dB hybrid. The use of reject loads in conjunction with the hybrids allows continuous operation of the PA Module in the event of a PA Pallet failure. The combiner contains Forward and Reflected signal directional couplers at its output. Detector circuits deliver the forward and reflected output samples to the Monitor Board, which indicates the forward power level in dBm and uses the reflected signal for VSWR monitoring and VSWR fault protection for the mod-ule. Another directional coupler provides an attenuated sample of output RF sig-nal to an optional coaxial port at the front of the PA module.Each Maxiva ATSC PA Module is a self-contained 800W transmitter including the power supply with its own internal control, monitoring and protection. The modules only receive basic On/Off, Mute, & Restart commands from the transmitter control system. This means that each module will protect itself without relying on the TCU.1.2.6.1 Module ControlThe primary method for control and monitoring of the PA Modules is via the individual 50 conductor ribbon cable bus to one of the two TCU assembly PA Interface boards. These busses are called Drive A (for preamp A and IPA A), Drive B (for preamp B and IPA B), and BP 1 through BP 4 (for PA backplanes A5, A6, A8, and A9 respectively). Each module contains a CPLD based monitor board that is responsible for reporting faults back to the TCU and for taking action when the ON/STBY command is issued from the TCU. The cabinet bus connects to each PA and IPA Module backplane, but it is only used for the PA_voltage_select line, which sets the DC output voltage of each of the eight AC to DC converters in the IPA and PA modules. The output can be switched between 44, 46, 48, or 50 VDC, depending on the operating frequency.

2/19/10 888-2715-001 1-13 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.7 Transmitter Power SuppliesThree phase AC mains must be supplied to the cabinets via circuit breaker CB23 and CB24 on the AC mains input assembly (A15). The transmitter can accept 208-240VAC (Delta or WYE) or 380-415VAC (WYE) by changing jumpers in three areas:• Terminal boards TB1 and TB2• Parallel MOV boards (A15A1 & A15A2)•IPA (driver) and PA backplane boards If properly jumpered there will be three phase 208-240V AC inputs supplied to each driver and PA module.! CAUTION:THREE PHASE 440-480VAC AC MAINS CAN ALSO BE USED BUT ONLY WITH AN EXTERNAL TRANSFORMER WHICH CAN BE ORDERED SEPARATELY FROM HARRIS.The 208 to 240VAC is supplied to each PA module’s connector I/O board and then to the modules AC distribution board. There it is applied to eight AC/DC converters (two per pallet). Depending on the operating frequency, the AC/DC converter output can be switched between 44, 46, 48, or 50 VDC, which is supplied to each of the eight FET’s in the module. There are two FET’s on each of the four pallets in each module.The control system in the transmitter is powered by two low voltage power supply (LVPS) modules in the TCU.1.2.8 Cooling SystemThe Maxiva ATSC transmitter uses a 50/50 glycol/water cooling system to remove the majority of the heat away from the transmitter but also has cabinet flushing fans to remove residual cabinet heat. A simplified block diagram of the liquid cooling system is shown in Figure 1-8 on page 1-14. A simplified diagram of the liquid cooling system inside the transmitter cabinet is shown in Figure 1-12 on page 1-21. The cooling system basically consists of:a. Cooling System Control Panel/Pump Module & /Heat Exchanger Unitb. Air purger located at the highest point in the cooling system.c. Coolant strainer.

1-14 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manuald. Supply and return line hose and fittings.e. PCI (pump control interface) located in the TCUf. Transmitter PA Module, Splitter and Combiner Cold PlatesThe liquid cooling system is an efficient closed loop, pressurized system. Prior to operation the cooling system must be properly prepared for operation and bled to remove trapped air. Instructions for cooling system preparation can be found in the ULX technical manual.The heat exchanger & pump module units operates on either 208-240 VAC, 50/60 Hz or 380-415 VAC 50/60 Hz. The operating voltages and frequencies should be provided at time of order. The number of heat exchanger fans will vary with model number.Figure 1-8 Simplified Liquid Cooling System Block Diagram! CAUTION:SOME MAXIVA ULX SERIES TRANSMITTERS WILL NOT SUPPORT A WATER COOLED TEST LOAD. AN AIR COOLED LOAD SHOULD BE USED WITH ULX SERIES TRANSMITTERS.N

2/19/10 888-2715-001 1-15 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.8.1 Cooling System Control PanelThe cooling system control panel controls the operation of the pump module/heat exchanger, and sends fault and status information to the TCU. The cooling system control connects to the RF Detector/Pump Control/Interlocks card in the TCU for monitoring and control. NOTE:The control panel and pump module is designed for indoor use only.The pump control signals are described below: +12 Vdc - Voltage supplied by Pump Control Unit. PUMP_INTLK - Output, active high. When high, the transmitter’s RF output is muted and the pumps are forced to OFF regardless of the LOCAL/REMOTE setting in the pump cooling control panel. If this interlock is active, the pumps can’t be turned ON (even locally). This interlock is driven by the transmitter or PA cabinet leak detector. If a leak is detected, this interlock goes to high.PUMP RUN - Output, active high to turn on selected pump.SWITCH PUMP - Output, pulsed active high to switch between Pump A and Pump B.PUMP A SELECTED - Input, connect to open drain or relay contacts. Active when input is LOW. PUMP B SELECTED - Input, connect to open drain or relay contacts. Active LOW. LOCAL STATUS - Input, connect to open drain or relay contacts. Remote = HIGH, Local = LOW

1-16 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-9 Cooling System Control Panela. ISOLATOR - ON/OFFb. HEAT EXCHANGER FANS - Manual, OFF, or Remotec. PUMP SELECT - A or B pump is selected when pressedd. TEMP CONTROL - Sets fan cycle temps. Factory settings are fan 1 turns on at 23.9o C. (75oF.) and fan 2 turns on at 26.7oC. (80oF.). These can be adjusted in the field to more suitable levels. Fan 1 turn on at 32oC and Fan 2 turn on at 37oC would be typical. e. SYSTEM CONTROL - LOCAL/REMOTE - Allows local control or remote con-trol via transmitter.f. HEAT EXCHANGER TEMP CONTROL - PLC controller used to set fan ON and OFF temperatures.The control panel also has the following status indicators:g. PUMP - A RUN (ON = Green)AC Isolator ON/OFFPump-A Run LEDPump-B Run LEDFan-A Run LEDFan-B Run LEDHeat Exchanger FansMANUAL/OFF/AUTOSystem ControlLOCAL/OFF/REMOTETemp ControllerPump SelectPump-A SelectedPump-B Selected

2/19/10 888-2715-001 1-17 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manualh. PUMP - B RUN (ON = Green)i. FAN - A RUN (ON = Green)j. FAN - B RUN (ON = Green) k. PUMP - A SELECTED (ON = Green)l. PUMP - B SELECTED (ON = Green)m. PLC STATUS INDICATORWhen System Control is in Remote mode, see Figure 1-9, the transmitter is responsible for control of the cooling system, including ON/OFF, manual pump selection and automatic pump switching in the case of a failure. Placing the control panel in Local mode allows manual switching of the pumps.The red selector at the top of the control panel (labeled ON/OFF) is the AC isolation switch which disconnects AC power from the pump module as well as the control circuitry in the control panel itself. In the local mode, with the AC isolation switch set to ON, one of the two pumps will be energized unless the Pump Interlock is active. To deenergize the pumps, when in the local mode, set the AC isolation switch to OFF.

1-18 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.8.2 Pump Module/Heat ExchangerThe control panel/pump module and heat exchanger are separate units each in a rack. The control panel and pump module are self-contained in one rack and include a PLC (programmable logic controller), an expansion tank, air purger, pressure gauges, a strainer and dual pumps operating in main/standby mode. The control panel/pump module is designed for indoor operation and should be located near the transmitter if possible. The heat exchanger assembly is designed for outdoor mounting.Figure 1-10 Pump Module & Control PanelPump Module Front Pump Module Side

2/19/10 888-2715-001 1-19 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-11 Heat Exchanger (before installation)NOTE:The heat exchanger shown in Figure 1-11 is a 2 fan unit. It is shown on a shipping pallet. The two fans that are shown pull air up through the cooling coil/fins (not visible in the photo) if unit if mounted horizontally (as shown). This unit can be mounted horizontally or vertically depending on how the legs are attached to the heat exchanger. Smaller transmitters may use only one fan.1.2.8.2.1 Heat Exchanger Fan ControlUnits with two fans offer redundancy. In multi-cabinet transmitters there will be one heat exchanger and control panel/pump module per PA cabinet. The fans are controlled electronically. The fans are enabled whenever the pump module is activated, but the controller temperature set point, in degrees C, and the proportional band setting, in degrees C, determines when the fans will actually start. With the controller temperature set point at 32oC and the proportional band setting at 5oC, the first fan will turn on when the coolant discharge temperature reaches 32oC, with the second fan turning on at 37oC. As the coolant discharge temperature drops the fans will be turned off.1.2.8.2.2 Pump Operation/Control LogicPump operation is automatically controlled using a programmable interface device controller (PID). There are two modes of pump operation, "LOCAL" and "REMOTE". The PID controller interfaces with the pump control interface (PCI) located in the TCU. The PLC controller receives and sends signals to the transmitter PCI. With "LOCAL"

1-20 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manualselected a status signal is sent to the PCI reporting the mode selection. Loss of flow for more than 5 seconds in an active pump will cause activation of the standby pump. Loss of flow for more than 15 seconds will cause both pumps to shut down.1.2.8.3 PA Module and Combiner Cold PlatesEach PA Module has a liquid cooled cold plate which connects to the cooling system with quick release connectors. There are also cold plates inside the combiner and the splitter to which all of the internal combiner reject loads are attached. See Figure 1-12 for cabinet coolant routing and module slot numbering.NOTE:The module slot numbering should not be confused with the IPA and PA module numbering. Module numbering and slot locations will vary depending on model number. See the outline drawing to identify which PA modules go in which slot locations dependent on model.

2/19/10 888-2715-001 1-21 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser ManualFigure 1-12 ULX 12300AT Liquid Cooling System (Internal)

1-22 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.2.9 M2X Multimedia ExciterThe M2X exciter is used with the Maxiva ULX Series transmitter. This exciter is described in a separate instruction book. A second hot standby exciter, and drive chain switcher is available as an option. The exciter is controlled by the transmitter using an internal CAN bus or Ethernet connection. Configuration, editing, diagnostics and monitoring are possible using the front panel on the TCU display, or via Ethernet ports provided with the exciter. Figure 1-13 M2X Exciter FrontA single exciter unit drives the Maxiva ULX transmitter. The excellent quality and stability of ATSC UHF signal output maximizes the TV transmitter efficiency, improving performance and helping to reduce operating costs.Figure 1-14 M2X Exciter Block DiagramVideoAudioA/D A/DDVB-ASI/SMPTE-310Rcvr & Cable EqualizerModulator FPGADUC/Precorrector FPGAIFPLLA/DRF IN (IPA)RF IN (PA)RF IN (HPF)4Analog Input Option BoardD/A1PPS10MHzUp ConverterDown ConverterRFPLLRF OUTDSPuC10/100 BaseT8CAN2RS2322LVPS AC UniversalBattery BackupOptionGPS AntGPS Option10/100 BaseT8DVB-ASI/SMPTE-310MonitorCable DriverTransmitter Interface BoardPFRUUniversal Exciter Platform

2/19/10 888-2715-001 1-23 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual1.3 General SpecificationsNOTE:Specifications subject to change without notice. Unless otherwise noted specifi-cations apply at the output of the Harris supplied mask filter.Specifications continue on following pages.

1-24 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual

2/19/10 888-2715-001 1-25 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual

1-26 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 1 IntroductionMaxiva ULX ATSC SeriesUser Manual

2/19/10 888-2715-001 2-1 WARNING: Disconnect primary power prior to servicing.Maxiva ULX ATSC SeriesUser ManualSection 2 Operation 22.1 IntroductionThis section gives detailed operational information for the Maxiva ULX Series Solid-State UHF TV transmitter. Information will pertain mostly to the operation and navigation of the TCU graphical user interface (GUI) touchscreen display.NOTE:Operation of the M2X exciter is covered in a separate manuals which ships with the transmitter.2.2 Transmitter Control PanelThe front panel user interface is a 5.25" 1/4 VGA, LCD touchscreen display. This touchscreen display uses software buttons to monitor the transmitter. Hardware buttons for the primary transmitter functions such as ON/OFF, RAISE/LOWER and Remote Enable/Disable are provided on the overlay panel next to the display as shown in Figure 2-1.NOTE:When transmitter is turned off using the OFF button under normal conditions, the pump module pump will continue to operate for approximately 5 minutes and then shut off.

2-2 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-1 Transmitter Control Unit (TCU)NOTE:A similar set of GUI screens is available via web browser with an ethernet net-work connection and the optional eCDi hardware interface.2.2.1 Hardware Control ButtonsTo the right of the touchscreen, there are 6 pairs of hardware control buttons which are part of the front panel overlay. Located to the left of the buttons are Status LED’s which are green under normal, no fault conditions. The hardware buttons provide immediate control of 6 main transmitter functions:a. Power Control - Auto/Manualb. Remote - Enable/Disablec. Power - Raise/Lowerd. Exciter - A/Be. Drive - A/Bf. Transmitter - On/OffThe Status LED’s light amber (yellow) for a warning and red for a fault condition in the transmitter subsystems. LED’s light green if the sub-system is normal. This provides quick sub-system status information without having to be familiar with a menu structure.SYSTEM

2/19/10 888-2715-001 2-3 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualNOTE:The system control buttons described above will be referred to as hardware con-trol buttons in the following manual text.Figure 2-2 TCU Front Panel LoweredShould the GUI screen go gray, i.e., the software buttons or symbols are still visible but have turned shades of gray instead of the usual color scheme, a TCU reset may be required. To reset the TCU, pull down the GUI panel exposing the circuit cards in the TCU chassis as shown in Figure 2-2. The second board from the right is the PCM board. The TCU reset button is located about toward the center of the board and it faces outward toward the user. Use the tip of a pencil or pen to gently depress the small black button.NOTE:It will take approximately two minutes for the TCU to reset. If the transmitter is on the air, resetting the TCU will NOT affect transmitter operation. A TCU reset can also be accomplished by pressing the Local GUI SYSTEM ADMIN screen REBOOT button.The screen and button are shown in Figure 2-19 on page 2-24.PCMReset

2-4 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualThere is another reset button toward the bottom of the MCM board (farthest board to the right). This reset button will also reset the TCU but it will take the transmitter off the air for a short timeJust above the MCM Reset button is a removable memory card containing system software. This card should be installed in any replacement MCM card that is installed.2.3 Graphical User Interface (GUI)The GUI ("Gooey") was designed to provide an intuitive interface into the transmitter control system. Once you become familiar with content, finding information is a matter of following the screens to the desired section of the transmitter. Menu Trees of all available screens are given at the end of this section, see "2.10 GUI Menu Structures" on page 2-28For the most part, all navigation through the GUI screens is via the touchscreen and softkeys (software buttons). The exceptions are the 6 pairs of hardware control buttons mentioned above. The touchscreen display is also divided into an active display area, which will change with each screen selected, and the global areas which are present on all screens.2.3.1 Global Status and NavigationThe top 2 sections of the touchscreen display (dark blue background) are considered global because they show up on all screens. The top line indicates the transmitter name and model number.

2/19/10 888-2715-001 2-5 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-3 Global Display HeaderThe second line of the display has operational and status information including:a. ON, Standby, Fault OFF, ON/FB (transmitter foldback), PS MUTE, and RF MUTE status indication.• ON: Normal operating mode• Standby: Transmitter turned off manually or remotely• Fault OFF: Transmitter forced off due to fault condition• ON/FB: Transmitter power folded back. Conditions causing the foldback may by temporary and could possibly be cleared by pressing the ON button. If, after pressing the ON button to reset the foldback, the ON/FB indication resumes the malfunction will need to be determined and the transmitter repaired (see Section 6 for fault log listings).• PS MUTE: A temporary fault condition caused by a power supply related fault. If underlying fault clears, the mute condition will be lifted and the transmitter returned to normal operating mode. If the mute continues, the underlying fault will need to be determined and the transmitter repaired (see Section 6 for fault log listings).• RF MUTE: A temporary fault condition caused by an RF related fault. If underlying fault clears, the mute condition will be lifted and the transmitter returned to normal operating mode. If the mute continues, the underlying fault will need to be determined and the transmitter repaired (see Section 6 for fault log listings).System Forward Power BargraphTransmitter Model NumberFault & OperationalStatusForward and ReflectedPower OutputsReflected Power Bargraph100% Mark - Based on Nominal Power Output setting in System Setup screen

2-6 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manualb. Transmitter Forward power output reading in numerical format (for multiple cabinet transmitters this would be a system power reading and not for a single cabinet). It is important to note that this is the power output after the filter.c. Transmitter Forward power output reading in a Bargraph format. The 100% mark is based on the nominal power level or TPO (Transmitter Power Output) entered into the configuration screen. The bargraph will also turn yellow if the power level is more than 10% higher or lower than the nominal 100% level.NOTE:Indications on the global display header in Figure 2-3 should be all green under normal (no fault) operating conditions. A yellow or red symbol or status indica-tion on the global display header should be investigated by the station engineer.

2/19/10 888-2715-001 2-7 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.4 GUI Home ScreenThe HOME screen shown in Figure 3-3 is the primary operator screen and the default screen after boot up. The HOME screen contains the most important general operator information such as:a. Cooling statusb. Power supply statusc. Drive chain selection (pre-driver and IPA status)d. Amplifier statusFigure 2-4 ULX-12300AT Home ScreenIt also has the global status and operation information at the top of the screen which shows the transmitter status, power output and any faults present.The HOME button (shown to the right) is a software button located in the upper left quadrant of all 5 main menu screens for quick navigation to the HOME screen. If a submenu screen is displayed on the GUI (see Figure 2-4), the lower right-hand button will typically be the BACK (arrow) button; use this back arrow button to go back up a level.To Figure 2-5 on page 2-9To Figure 2-8 on page 2-13To Figure 2-10 on page 2-15To Figure 2-12 on page 2-17To Figure 2-14 on page 2-19

2-8 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualThe quickest way to access the HOME screen is to press either the HOME button on a main menu screen or the BACK button arrow on a submenu screen followed by a HOME button press on the main menu screen.There are five touchscreen navigation buttons on the right side of the GUI Home display. These buttons vary from screen to screen. The software menu buttons can also act as status indicators and turn red if a fault condition is detected.There is a navigation button (shown to the right) to allow access to information specific to the PA cabinet. Pressing this button will take you to the Power Amp screen shown in Figure 2-8 on page 2-13.This button is also a status indicator for the PA cabinet as it will change from green to red, if a problem is detected in that cabinet.NOTE:To simplify the discussion of GUI navigation, the following sections describe the screens under the 5 main menu buttons located on the right side of the GUI Home page.Similarly, pressing the exciter, PDU or IPA icons will take you to the main drive chain menu.

2/19/10 888-2715-001 2-9 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.5 Drive Chain Main MenuIf you press the Drive Chain button on the HOME screen, it will take you to the screen shown in Figure 2-5. The Drive Chain Menu structure is shown in Figure 2-24 on page 2-29.Figure 2-5 Drive Chain ScreenThe Drive Chain screen is basically an exciter, pre-driver and IPA control and monitoring screen. It has a power reading for each exciter and IPA output and allows the operator to select exciters and pre-driver/IPA’s. It also allows selection of AUTO or MANUAL switching mode for the drive chain when the optional dual exciter system is installed. Specifically it includes:a. The operational and on-air status of 1 or 2 exciters (the second exciter is optional) pre-drivers and IPA’s.NOTE:The standard M2X exciter comes with a main and aux input. b. The status of Exciters and Drivers A and B. The screen also allows exciter and driver selection.c. A Dual Exciter Control box (located at the bottom of the screen on the left). This section will be grayed out for single exciter systems. For dual exciter systems this box has two exciter buttons and Auto/Manual buttons:To Figure 2-6To Figure 2-7 To Figure 2-4

2-10 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual1. Auto/Manual - Auto should be the standard position for normal operation. Placing it in Manual mode prevents an autoswitch to the alternate drive chain. In AUTO mode, if the on-air exciter drops below 50% of nominal power, or if the on-line exciter experiences a fault, the controller will auto-matically switch to the backup drive chain (if available). Manual mode could be used if an exciter or driver has been removed for service or for any application where an automatic switch to the alternate drive chain is not desired.2. Exciter A/B - These buttons select operational exciter. To use these buttons, place the Auto/Manual button to Manual, then press the A or B button to select the on-air drive chain.d. Pre-Driver/IPA Control box (located at the bottom of the screen on the right). This dual driver has 2 switches:1. Auto/Manual - This toggle button should always be in the Auto position for normal operation. Placing it in Manual mode prevents an autoswitch to the alternate IPA (Preamp/Driver). In AUTO mode, if the on-air predriver/IPA-drops below 50% of nominal power, the controller will automatically switch to the backup pre-driver/IPA. Manual mode could be used if a exciter or driver has been removed for service or for any application where an automatic switch to the alternate IPA(Preamp/Driver) chain is not desired.2. Pre-driver/IPA A/B - These are the manual selection buttons. To use these buttons, place the Auto/Manual button to Manual, then press A or B to activate the on-air predriver/IPA combination.2.5.1 Drive Chain FaultsWhen the "Faults" button in Figure 2-5 is pressed, it will bring up the screen shown in Figure 2-6. This screen is basically a fault display for exciters and pre-driver/IPA’s. For more information on these faults and what to do if one should occur, refer to the M2X exciter manual.

2/19/10 888-2715-001 2-11 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-6 Drive Chain Faults ScreenNOTE:Exciter A is always factory installed as the upper exciter unit. The optional exciter B is installed immediately above the TCU and below the top exciter unit (see layout photo Figure 1-1 on page 1-2).2.5.2 Drive Chain MetersWhen the "Meters" button in Figure 2-6 is pressed, it will bring up the screen shown in Figure 2-6. This screen displays input and output information for exciters and pre-driver/IPA units.Current values for the pre-driver and IPA’s are also given. To Figure 2-7To Figure 2-5

2-12 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-7 Drive Chain Meters Screen To Figure 2-6To Figure 2-5

2/19/10 888-2715-001 2-13 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.6 Power Amp Main MenuIf you press the Power Amps button on the HOME screen, it will take you to the screen shown in Figure 2-8. The Power Amps Menu structure is shown in Figure 2-24 on page 2-29.Figure 2-8 Power Amps Screen(PA Cabinet 1 ULX12300AT shown)This screen shows the current and forward power for individual PA modules in the indicated cabinet. Additional modules in the same cabinet are viewed by selecting the PA’s 1-8 or 11-18 buttons in the lower left portion of the bottom of the screen. The PA, Input and On/Off indications on the screen are also status indicators with 3 possible states indicated:a. OK - Green backgroundb. Fault - Red backgroundc. OFF - The background is gray. The On/Off field will can be used to toggle individual amplifier modules on or off as needed.NOTE:For multi-cabinet Maxiva Series transmitters (ULX13400 - ULX36900) the cabi-net select buttons are located to the right on the screen. Selecting "Next Cabinet" will allow viewing of information for the next cabinet. Once the desired cabinet is selected, submenus are navigated in the same way as the others cabinets’. To Figure 2-9To Figure 2-4PA SectionSelectViewed Cabinet

2-14 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualNOTE:Always be sure that you are accessing the desired cabinet number. The cabinet being viewed is indicated in the upper left corner of the screen.To get detailed information on a particular PA Module, press the Faults button on the right section of the screen. The Faults button will take you to the PA Faults screen shown in Figure 2-9.2.6.1 PA FaultsThis screen is basically a list of all faults monitored in each PA Module.• An active fault will be highlighted in RED• A warning condition will be highlighted in YELLOW.The PA Faults screen in Figure 2-9, shows that PA Module #1, in PA Cabinet #1 has no faults and 1 temperature warning. It also shows a power supply fault on module 3 and an input power warning on module 4.NOTE:For a detailed explanation of all PA Faults in Figure 2-9 refer to Section 6, Diag-nostics.Figure 2-9 PA Faults Screen (PA Module 1 Selected)PA Modules will fault off at 200W reflected power. Also, it will display a temperature fault at 65° C ambient temperature (measured by a thermistor on the monitor board) or 90° C pallet temperature.To Figure 2-8

2/19/10 888-2715-001 2-15 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.7 Output Main ScreenIf you press the Output button on the HOME screen, it will take you to the screen shown in Figure 2-10. The Output Menu structure is shown in Figure 2-23 on page 2-27.Figure 2-10 Output Screen The main Output screen is has 3 main areas:• RF Output System - This panel gives the total system Forward and Reflected power, measured after the filter. It also has a VSWR and Foldback status indications with backgrounds that are red for fault or yellow for warning. A VSWR fault is indicated when the system VSWR is > 1.9:1. Foldback warning is indicated when system VSWR is > 1.4:1NOTE:Both VSWR fault and foldback levels are adjustable via software.• Power Amplifier Cabinet - Amplifier cabinet icons (triangle) give a status indication of OK (green) or Fault (red) along with cabinet Forward and Reflected power (before the filter) for each cabinet.• Output Control - The control area at the bottom of the screen is used to control an external RF switch so that the transmitter can be switched from Antenna to the Test Load. The diagram indicates the position of the RF switch based on micro-switches located on the switch.To Figure 2-11To Figure 2-4Cabinet Indicators

2-16 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualNOTE:If the load interlock is open and the transmitter is switched to the "Test Load" position, the transmitter output will be muted. If a test load interlock is not used the appropriate connection on the interlock connector on the customer I/O panel must be jumpered. For more information see UAX technical manual section two.2.7.1 Output FaultsThis screen shows faults which are considered Cabinet or System level such as VSWR, Power High, foldback etc.... • An active fault will be highlighted in RED• A warning condition will be highlighted in YELLOWA detailed explanation of each of these faults is given in Section 6, Diagnostics.Figure 2-11 Output Faults ScreenTo Figure 2-10ON becomesON/FB in fold-back condition.Background turnsyellow in foldback.

2/19/10 888-2715-001 2-17 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.8 Power Supply Main MenuIf you press the Power Supply button on the GUI screen it will take you to the screen shown in Figure 2-12. The Power Supply Menu structure is shown in Figure 2-24 on page 2-29.This is the power supply metering screen for both the low voltage power supply units (in the TCU) and the AC Mains. It also allows access to Power Supply Fault screens:• PS Faults - Fault list and status• Next Cabinet - Access to PS screens on other cabinets if applicable.Figure 2-12 Power Supply ScreenTo Figure 2-13To Figure 2-5

2-18 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.8.1 PS FaultsThis is the PS (power supply) Faults screen which lists of all of the monitored power supply faults for the AC mains and low voltage power supplies. An active fault will be highlighted in RED, while a warning condition will be highlighted in YELLOW. For a detailed explanation of these faults, refer to Section 6, Diagnostics.Figure 2-13 PS Faults ScreenTo Figure 2-12

2/19/10 888-2715-001 2-19 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.9 System Main MenuIf you press the System button on the GUI screen, it will take you to the screen shown in Figure 2-14. The System Menu structure is shown in Figure 2-24 on page 2-29.Figure 2-14 System Main MenuThis screen contains the System Main Menu which gives overall status information and access to additional System screens. This includes:a. CAB1 - Provides coolant temperatures, air temperatures and coolant flow (liters per minute). The CAB1 block also provides the status of the RF Mute and Safety Interlocks. Interlocks can read Open (red background) or Closed (gray back-ground)b. Pump Status - Pump icon has a green background color if no faults are present or a red background color if faults are active. For more information on faults press "Faults"c. Pump Control - Pump A & Pump B for dual pump systems are indicated. This panel would be grayed out (inactive) for single pump systems. The active pump will have a green background. Pumps can be switched from this screen, by pressing A or B only if the pump control panel switch is in the REMOTE mode. Placing the pump control panel in LOCAL mode will disable pump selection on the System GUI screen. For additional information on LOCAL operation and the pump control panel see "1.2.8.1 Cooling System Control Panel" on page 1-15. AUTO or MANUAL can also be selected here. Selecting AUTO allows automatic switchover in case of pump failure in dual pump systems. AUTO is the normal operating mode if the system has dual pumps. To Figure 2-15To Figure 2-16To Figure 2-17To Figure 2-4

2-20 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.9.1 System FaultsThis screen is accessed by pressing the Faults button on the System screen. An active fault condition is highlighted in RED while a warning condition is highlighted in YELLOW.For more information on these faults refer to Section 6, Diagnostics.Figure 2-15 System Faults Screen2.9.2 System Fault LogThis screen is accessed by pressing the System Fault Log button on the System screen in Figure 2-14 on page 2-19. It is a complete listing of all transmitter and system faults in the order in which they occurred. It can hold up to 99 faults and then becomes a FIFO (First IN - First Out) memory buffer, with the latest fault entry on top. Active Faults will be highlighted and cannot be reset. All other faults will be cleared when the RESET button is pressed. Use the NEXT and PREVious buttons to view the entire list.A complete listing of all faults which can show up in this log, along with a brief explanation of each fault, is given in the following tables in Section 6, Diagnostics.• Table 3-1, “Maxiva Drive Chain Fault List,” on page 3-5• Table 3-2, “PA and IPA Module Fault List,” on page 3-7• Table 3-3, “Power Supply Faults List,” on page 3-8To Figure 2-14

2/19/10 888-2715-001 2-21 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual• Table 3-4, “Output Faults List,” on page 3-10• Table 3-5, “System Faults List,” on page 3-12These tables are a quick reference list and in most cases is all that is required for advanced user to diagnose the problem. However, detailed information on each of these faults is also given in context with the fault page where it originated, also in Section 6.Figure 2-16 System Fault Log ScreenTo Figure 2-14Note:Date format isDD/MM/YYPress to clear all faults

2-22 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual2.9.3 System ServiceThis screen provides a way to change 3 pieces of information which are then used throughout the GUI. The System Service screen us shown in Figure 2-17 on page 2-22. •Station Name: This can be up to 24 characters and will appear at the top of every GUI screen•Model Number: This value is entered at the factory. The model number chosen must match the transmitter name plate. It is used to gray out portions of the GUI screens which are not used by some models.•Serial Number: This is entered at the factory. Refer to this number if calling for sup-port.Figure 2-17 System Service Screen (Remote)The System Service screen varies depending on whether it is viewed on the local GUI screen or remotely via web browser. The local screen shown in Figure 2-18 on page 2-23 contains additional entry windows to allow manual entry of date and time values. The TCU will automatically set date and time values at turn on if it is connected to a network.To Figure 2-20To Figure 2-23To Figure 2-20To Figure 2-22

2/19/10 888-2715-001 2-23 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-18 System Service Screen (Local)2.9.3.1 Admin Setup (Local GUI Only)The Admin screen is accessed by pressing the Admin button shown on the Local GUI System Service screen shown in "Figure 2-18 System Service Screen (Local)" on page 2-23. The following parameters are accessed via the System Service Admin screen.•Login: Allows access as Guest, Operator or Expert. Guest level allows user to view screens but does not allow adjustments. Operator allows viewing and operational adjustments. Expert allows viewing, operational and maintenance adjustments. - Local GUI login is admin. Web browser login is admin.•Password: Allows user password entry. There are different login and passwords for local and web browser GUI usage. The default logins and password from the factory are: - Local GUI passwrord is harris. Web browser login is harris2009.•Expire: Sets the expiration time for the user access level.•LCD Contrast: The screen contrast can be adjusted dynamically to allow for differ-ent room lighting by change the percentage setting.•User (administrators only): This area is used to enter ID’s and passwords for the various user levels. •Reboot: This button will reboot the TCU. The transmitter will stay on the air. Reboot takes about 2 minutes To Figure 2-20To Figure 2-19To Figure 2-20To Figure 2-22

2-24 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-19 System Admin Screen2.9.3.2 System Setup•Sys Pwr Out (W): Set this value to the system nominal power output. This value determines the 100% level on the GUI power out bar.•Center Freq (MHz): Enter the center frequency for the desired operational channel. This only sets the transmitter frequency. It doesn’t set the exciter frequency.• Modulation Type: Select the system modulation type from the values displayed in the box.•AC Line Volt (VAC): Set this to the nominal AC line voltage at the transmitter site.•Number of Exciters: Set this to either 1 or 2 depending on how many exciters are in the transmitter.•Number of Cabinets: Set this to the number of PA cabinets in the system.•System Setup Entry: Enter a number from 1 to 8 in this field. For example if you want to set up the transmitter for CH29 and store it in entry 3, you enter 3 in the Sys-tem Setup Entry. This will recall the data for entry 3. If no data is there, defaults will be loaded. Once all the calibrations for channel 29 are done you press SAVE SETUP. This will save the data to entry 3.To Figure 2-20

2/19/10 888-2715-001 2-25 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-20 System Setup ScreenNOTE:The Save Setup button allows storage of up to eight setups for the purpose of N+1 operation. All the calibrations for the transmitter are saved in the MCM module. This means the transmitter can change to anyone of 8 channels and be fully calibrated by simply recalling the set up entry. The N+1 controller will send the set up the entry that needs to be recalled, as well as set the exciter frequency.2.9.3.3 Cabinet Setup•Cab Pwr Out (W): Set cabinet output power here. This is the power out of the cabi-net before the combiner or filter. This needs to be set for each cabinet. Sets cabinet nominal power used to set ALC level. Maximum cabinet power is limited to 10% over this value.•Number of PA’s: Enter the number of PA modules in the selected cabinet. This needs to be set for each cabinet.• Number of IPA’s: Enter the number of IPA modules in the selected cabinet. This needs to be set for each cabinet.•Cooling Pumps: Set this to either 1 or 2 depending on how many pumps are in pump module/heat exchanger for this cabinet. This needs to be set for each cabinet.To Figure 2-21To Figure 2-17

2-26 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-21 Cabinet Setup Screen2.9.3.4 System and Cabinet Power CalibrateSee the UAX technical manual Section 5 for the procedure that utilizes these screens.2.9.3.5 System Version ScreenThis screen shows the software revision for the TCU controllers. This information should be known before calling for technical support.To Figure 2-17

2/19/10 888-2715-001 2-27 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-22 System Version Screen2.9.3.6 System Network ScreenThis screen provides information about network settings. MAC, IP, Netmask and Gateway settings are given.Figure 2-23 System Network ScreenThe System Network screen when viewed from the local GUI has an additional button called Save & Restart Network. When a change is made to one of the network parameters (IP address, mask, etc.) the networking system has to be restarted before the To Figure 2-17To Figure 2-17

2-28 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manualchange is implemented. Save & Restart saves the change and restarts the network system so the change is made permanent and the new parameters become active.2.10 GUI Menu StructuresFigure 2-24 on page 2-29 shows the menus which can be accessed on the GUI. This menu tree may be helpful when learning to navigate the screens. The blocks on the left represent the main menus which can accessed using one of the 5 software buttons on the right side of the GUI HOME Page. Each successive level (to the right) represents software buttons which will show up on the right side of the GUI submenu screens.NOTE:Multi-cabinet Maxiva Series transmitters will require an extra button press at the top level menus to select the desired cabinet.

2/19/10 888-2715-001 2-29 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser ManualFigure 2-24 GUI Menu TreeDrive ChainPower Amps OutputPower Supply System Faults Meters Faults Faults Faults Faults Logs ServiceFaults LogClear Log System Setup Version Network Cabinet Setup CalibrateSave Setup Cabinet Calibrate Trips

2-30 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 2 OperationMaxiva ULX ATSC SeriesUser Manual

2/19/10 888-2715-001 3-1 WARNING: Disconnect primary power prior to servicing.Maxiva ULX ATSC SeriesUser ManualSection 3 Diagnostics 33.1 IntroductionThis section contains diagnostic and troubleshooting information for the ULX series UHF transmitter. Included is a complete description of all faults which can be displayed via the transmitter front panel TCU display or GUI (Graphical User Interface). Due to the complexity of the transmitter control system and the extensive use of surface mount components, the scope of this diagnostics section is to isolate the problems down to a PC board or module level which can then be easily exchanged.The GUI buttons and icons use a symbol and color code system. Some examples using the triangle shape are given below. The other shapes operate similarly.a. Green with a 1 - - ON and operating normally.b. Green symbol - - ON and operating normally.c. Light Gray - - "Grayed Out" - Not communicating or not available.d. Yellow - Warning - A non-critical sub-system or parameter is out of tolerance and should be addressed by engineering personnel.e. Red - - Critical Fault - This could be a sub-system fault in which the sub-system is muted or shut off (such as a PA Module) or could be a system level fault which could mute or shut the transmitter off.When a fault occurs one or more of the 5 LED’s on the TCU will illuminate RED. To track down the cause of the fault, begin by looking at the TCU Home screen and the

3-2 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser Manualsoftware buttons along the right side as shown in Figure 2-4 on page 2-7 another option is to start by going to the System Log and seeing what faults have occurred and in what order. If you are not familiar with GUI navigation, refer to Section 3.3.2 GUI System LogThe GUI contains a System Log which is a listing of all faults which have occurred. To see the System Log press SYSTEM then SYSTEM LOG. This will bring up the screen in Figure 3-1. The System Log gives the following information:a. # - This gives the number of the fault. There can be up to 99 faults in the log, then it is FIFO (First IN, First Out)b. Fault Type - This is simply the name of the fault.c. Time and Date - This gives the exact time and date that the fault occurred.d. Active or Inactive - If the fault is highlighted in red, it is still active and cannot be cleared. If the fault is not highlighted, then the fault is gone and can be cleared if so desired.Function Buttons:a. RESET - Will erase all inactive faults in the log.b. NEXT and PREV - These buttons allow you to scroll through the entire fault list if necessary.c. BACK - Will take you back to the System main menu.NOTE:Tables 6-1 and 6-2 give a complete listing of all possible faults in the Maxiva transmitter. They also give a brief description of each fault, the trip point and the transmitter action taken in response to the fault.

2/19/10 888-2715-001 3-3 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualFigure 3-1 Fault Log Screen3.3 Maxiva Three-Strike Fault Actions3.3.1 Reflected Power FaultsThe TCU monitors reflected power at the Cabinet output and at the System output. When the reflected power level (typically 10% of the rated power or a 1.9:1 VSWR) is exceeded the TCU generates an RF MUTE. If after three attempts to restart (three strikes) subsequent faults occur, the transmitter will turn OFF and operator intervention will be needed to turn it back ON. The three strike counter resets after 30 seconds with no faults.Reflected power faults that initiate a three strike procedure are:• Cabinet Reflected Power• System Reflected Power3.3.2 Module FaultsShould a module failure occur (say a power glitch) the TCU will initiate a three-strike action. This action will cause a reset of only the PA Module experiencing the fault and not the entire transmitter.

3-4 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualThe module three strike policy is:• The TCU will try to restart the module three times within a 10 second window. After that, if a fault is still present, the module will be turned OFF until it receives the restart command from the Main Controller (ON Command).• There is a 3 second delay between restart attempts.• The fault-strike restart process is the same as the system restart command, all of the module faults will be reset.• During the 10 second three-strike window, any of the nuisance faults will be reported to the Main Controller.These are the module faults which will be allowed three strikes:• Over Voltage Pallet• Under Voltage Pallet• Over Temperature Module Controller• Over Current Module Driver• Over Temperature Pre-driver Heatsink• Over Drive Module RF Input• Over Drive Module RF Output• Under Current Phase and Gain Board• Over Current Phase and Gain Board• Over Current Pallet• Under Current Pre-Driver• Over Current Pre-Driver• Over Temperature Power Supply Board• Low Voltage Output DC Converter• Short Circuit • High Module Reflected Power

2/19/10 888-2715-001 3-5 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser Manual3.4 Fault TablesThe following tables provide a listing of Maxiva Transmitter faults along with a brief description, the fault level or threshold and the action taken by the transmitter.Table 3-1 Maxiva Drive Chain Fault ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life SupportIPA A Fault: Power Supply, LDMOS, VSWR, Power Overload, Tempera-ture, Input PowerThe IPA can report up to 6 faults via their parallel con-trol pins Any one fault active IPA Switch to alternate IPA if in Auto ModeYES YESIPA B Fault: Power Supply, LDMOS, VSWR, Power Overload, Tempera-ture, Input PowerThe IPA can report upto 6 faults via their parallel con-trol pins Any one fault active IPA Switch to alternate IPA if in Auto ModeYES YESPDU (Predriver) A FaultThe Predriver cur-rent is monitored inside the PDU. A fault is sent if it is below the normal minimum current.Predriver current is below TBD mAIPA Switch to alternate IPA if in Auto ModeNO YESPDU Predriver B FaultThe Predriver cur-rent is monitored inside the PDU. A fault is sent if it is below the normal minimum current.Predriver current is below TBD mAIPA Switch to alternate IPA if in Auto ModeNO YESExciter A Power OutputExciter A power level lowTrip point is 50% of nominal. Trip point adjustable by epot Exciter Switch to alternate Exciter if in Auto ModeNO YES

3-6 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualExciter B Power OutputExciter B power level lowTrip point is 50% of nominal. Trip point adjustable by epot Exciter Switch to alternate Exciter if in Auto ModeNO YESEXCA NO COMMU-NICATIONSExciter A not com-municating with transmitter main controllerNo serial communica-tions traffic detectedExciter Switch to alternate Exciter if in Auto ModeNO NOEXCB NO COMMU-NICATIONSExciter B not com-municating with transmitter main controllerNo serial communica-tions traffic detectedExciter Switch to alternate Exciter if in Auto ModeNO NOEXCA Summary FaultExciter A reports a summary faultExciter Switch to alter-nate Exciter if in Auto ModeNO YESEXCB Summary FaultExciter B reports a summary faultExciter Switch to alter-nate Exciter if in Auto ModeNO YESTable 3-1 Maxiva Drive Chain Fault ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support

2/19/10 888-2715-001 3-7 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualTable 3-2 PA and IPA Module Fault ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life SupportTemperature Fault YES YESVSWR Fault YES YESPower Overload (including Input Power Overdrive)YESLD-MOSFET Failure YES YESInput Power Low YES YES

3-8 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualTable 3-3 Power Supply Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support+VA VDC FLT+15V Voltage Fail-ure Value is more than +/-15% of normal readingWARNING NO YES-VA VDC FLT -15V Voltage Failure Value is more than +/-15% of normal readingWARNING NO YES+5 VDC FLT +5V Voltage Failure Value is more than +/-15% of normal readingWARNING NO YES+3.3 VDC FLT+3.3V Voltage Fail-ure WARNING WARNING NO YESAC Mains HighAC Mains voltage has exceeded 10% above nominalWARNING NO YESAC Mains LowAC Mains voltage has exceeded 15% below nominalAny phase is greater than +/- 5% of the average of all three phasesNO YESAC Phase ImbalanceAC line imbalance phase to phaseWrong sequence WARNING NO YESAC Phase SequenceWrong Phase sequence detectedFUSE OPEN RF MUTE, Pump and Heat exchanger turned OFF. Transmitter returns to ON state auto-matically when fault clears.NO YESMOV Fuse 1 Fuse failed on MOV boardFUSE OPEN WARNING NO YES

2/19/10 888-2715-001 3-9 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualMOV Fuse 2 Fuse failed on MOV boardFUSE OPEN WARNING NO YESMOV Fuse 3 Fuse failed on MOV boardFUSE OPEN WARNING NO YESMOV Fuse 4 Fuse failed on MOV boardValue is more than +/-15% of normal readingWARNING NO YESTable 3-3 Power Supply Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support

3-10 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualTable 3-4 Output Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life SupportCabinet VSWR (Reflected Power Fault)Cabinet Reflected Power has exceeded 10% of rated powerTrip point is set at VSWR = 1.9:1. Trip point adjustable by epotRF MUTE, Fault OFF after 3-strike. The Time interval between strikes should be about 3 seconds YES YESSystem VSWR (Reflected Power Fault)System Reflected Power has exceeded 10% of rated powerTrip point is set at VSWR = 1.9:1 (Foldback starts at 1.4:1). Trip point adjustable by epot. Foldback set point adjustable by soft-wareRF MUTE, Fault OFF after 3-strike. The Time interval between strikes should be about 3 senconds YES YES for trip NO for Fold-back. Fold-back routine requires PCM actionCabinet For-ward Power Fault (Visual Power in Analog TV)Cabinet Forward Power has exceeded 10% of rated powerWARNING NO YES YESCabinet Aural Power Fault (Ana-log TV only)Aural Power is below 50% of rated powerWARNING NO NO NOSystem For-ward Power FaultSystem Forward Power has exceeded 10% of rated powerWARNING NO YES YESSystem Aural Power Fault (Analog TV only)Aural Power is below 50% of rated powerWARNING NO NO NO

2/19/10 888-2715-001 3-11 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualSystem Power Fold-backThe forward power is folded-back (reduced) to maintain the reflected power below 2.8% of nominal power (1.4:1 VSWR)Trip point is set at VSWR = 1.4:1. This is a software trip point which depends on the transmitter nomi-nal powerWARNING NO NOReject 1 FaultReject power threshold exceededWARNING NO YES YESReject 2 FaultReject power threshold exceededWARNING NO YES YESReject 3 FaultReject power threshold exceededWARNING NO YES YESTable 3-4 Output Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support

3-12 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualTable 3-5 System Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life SupportAir Temp Ambient control enclosure air tem-perature has exceeded 65°C. The source of this temp can be from the temp sensor in the MCM module for instance.65°C WARNING NO YESCoolant Flow Coolant flow is less than the minimum Liters per minute flow rate for the number of PAs presentDepends on transmitter modelRF MUTE followed by pump switcho-ver. If still insuffi-cient flow RF MUTE stays active until proper flow is restored. Transmit-ter returns to ON state automatically when fault clears.NO YESCoolant Leak Coolant leak detected inside transmitter cabinetN/A Transmitter Fault OFF. A manual turn ON is required for recovery NO YESCoolant Inlet TemperatureCoolant tempera-ture has exceeded 55°CWarning at 55°C, Fault at 65°CWARNING. RF MUTE if coolant temperature reaches 65°C. Transmitter returns to ON state auto-matically when fault clears.NO YES

2/19/10 888-2715-001 3-13 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualCoolant Out-let Tempera-tureCoolant tempera-ture has exceeded 55°CWarning at 55°C, Fault at 68°CWARNING. RF MUTE if coolant temperature reaches 68°C. Transmitter returns to ON state auto-matically when fault clears.NO YESCoolant Fault The tank in the pump module is empty Open circuit from level detector inside tankTransmitter Fault OFF. A manual turn ON is required for recovery NO YESCoolant WarningThe coolant in the tank is lowOpen circuit from level detector inside tankWARNING NO YESFan 1 Fault Fan AC current too low or too highFault levels LOW: 100 mA, HIGH: 800 mAWARNING NO YESFan 2 Fault WARNING NO YESSystem Safety Inter-lock Open circuit Transmitter Fault OFF. A manual turn ON is required for recovery NO YESTable 3-5 System Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support

3-14 888-2715-001 2/19/10 WARNING: Disconnect primary power prior to servicing.Section 3 DiagnosticsMaxiva ULX ATSC SeriesUser ManualSystem RF Mute Inter-lockOpen circuit Transmitter RF MUTE. Transmit-ter returns to ON state automatically when the interlock is closed.NO YESCabinet Safety Inter-lock Open circuit Cabinet Fault OFF. A manual turn ON is required for recovery NO YESCabinet RF Mute Inter-lockOpen circuit Cabinet RF MUTE. Cabinet returns to ON state automati-cally when the interlock is closed.NO YESTable 3-5 System Faults ListTYPE Description Fault Level or Threshold Transmitter Action Three Strike Available in Life Support

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