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General| Brand | Harris |
|---|---|
| Model | DiamondCD Series |
| Category | Transmitter |
| Language | English |
Explains the content and purpose of each section of the manual.
Provides a general overview of the Diamond CD™ series transmitters and their cabinet configurations.
Lists the different Diamond Transmitter models and their power levels, including nomenclature.
Compares the original and new style PA cabinets, highlighting differences in combiners and detectors.
Presents block diagrams illustrating signal flow for various Diamond Transmitter models.
Describes the control cabinet's components, including GUI, exciters, and drivers.
Details the distributed control system architecture with main, life support, PA cabinet, and module controllers.
Explains the GUI's role in monitoring, control, configuration, and fault logging.
Describes updating firmware on controllers using ISP software without replacing ICs.
Details the operation and components of the PA cabinet, including modules, power supplies, and cooling.
Explains PA module amplification, palletization, self-protection, and hot-pluggability.
Describes the 32VDC power supplies powering PA modules and the control system.
Explains the in-phase module combiner design utilizing circulators for impedance matching.
Details cabinet combiner types (quadrature, Geysel) used for combining multiple PA cabinets.
Describes internal and optional external cooling systems for PA cabinets.
Introduces the CD-1A and APEX DTV exciters, their functions, and features.
States that specifications are located on the last page of the section.
Lists general specifications including RF output, power consumption, physical dimensions, and electrical requirements.
Provides information necessary for installing and performing initial checkout procedures on Diamond™ Series transmitters.
Offers guidelines for planning the transmitter installation, considering codes and site specifics.
Recommends minimum clearances for servicing and planning transmitter room space.
Lists cabinet weights for building planning and structural verification.
Details the RF system floor plan, supports, hangers, and component installation.
Explains the typical exhaust duct, blower system, and air intake requirements.
Covers transmitter power requirements, voltage variations, and AC power connection specifics.
Refers to schematics for connection and breaker information for each cabinet.
Provides guidance on locating circuit breaker panels and safety precautions for disconnecting main power.
Details information for inspecting and inventorying the transmitter shipment before installation.
Explains the use of a packing check list and procedures for notifying customer service of discrepancies.
Mentions the included CD-ROM and SuperDisk for installation and remote GUI operation.
Describes the purpose and use of factory test data sheets for operation parameters.
Lists necessary equipment for safely unloading transmitter cabinets and pallets.
Provides instructions for marking floor positions and leveling cabinets for proper alignment.
Explains how to connect grounding blocks inside cabinets for RF system and inter-cabinet grounding.
Provides caution about installing RF transmission line and wiring.
Details system return loss measurement and adjustment using a fine-matcher line section.
Describes installing serial, parallel, and RF drive cables between PA cabinets and the control cabinet.
Refers to wiring diagrams for system wiring, RF flow, and AC power flow.
Explains keyboard connection scenarios and hardware versions of the GUI computer.
Refers to wiring diagrams for PA cabinet connections and AC power flow.
Outlines the initial power-up and alignment procedures for PA cabinets.
Details checking AC voltage at the PA cabinet's LVPS assembly.
Provides a procedure to verify DC voltages on the LVPS assembly output.
Details steps for checking AC voltage at the Control Cabinet's LVPS assembly.
Outlines the procedure to verify DC voltages on the Control Cabinet's LVPS assembly.
Describes the process of powering up and aligning PA modules and cabinets.
Details how to verify CAN bus communication between PA cabinet controllers and modules.
Guides on bringing up RF output for individual PA cabinets, including monitoring power.
Explains how to bring the full transmitter up to power after individual PA cabinets are operational.
Details interfacing external parallel remote control units with the Customer I/O board.
Explains control inputs using opto-isolators for surge protection and their pinout.
Lists status output connections for J2, including transmitter status and faults.
Describes analog metering outputs providing 0-4Vdc for RF power measurement.
Refers to the DiamondCD™ Software Manual for GUI, Remote GUI, and ISP applications.
Details connecting external interlock switches and PA Cabinet Controller dipswitch settings.
Explains changes in PA cabinet styles, combiners, and module placement.
Provides instructions for installing switching power supplies for RF amplifiers.
Guides on placing PA modules into slots, emphasizing module phasing adjustments.
Provides a brief explanation of hardware controls and indicators on the Control Cabinet.
Refers to a separate manual for loading, updating, and operating GUI software.
Explains the soft-touch push buttons on the Control Cabinet for basic transmitter functions.
Describes the light bar above the GUI indicating overall transmitter status (green, red, yellow).
Presents detailed technical descriptions of cabinet operations, organized by transmitter cabinet.
Details the control cabinet's components and communication methods for PA cabinets.
Explains the feature of powering the control cabinet from two independent AC sources for reliability.
Refers to the exciter manual for detailed circuit descriptions.
Describes the DD-1 Driver's function, self-protection, and optional dual driver configuration.
Explains the function of RF detectors in monitoring power levels and converting them to DC voltage.
Details the cabinet splitter's role in distributing driver module output to PA cabinets.
Describes redundant low voltage power supplies in the control cabinet.
Explains the two parallel control systems (basic life support and main controller) and their communication.
Describes the Main Controller as a microprocessor-based system receiving commands from various sources.
Lists primary functions of the Main Controller, including ON/OFF, exciter/driver switching, and VSWR foldback.
Explains the Life Support system's role in providing basic control and protection during Main Controller failure.
Details how the Life Support board functions when the Main Controller fails, including disabled features.
Describes the GUI as a touch screen interface for local control, status, and metering.
Explains the GUI computer's hardware and its role as a control point, noting it's not essential for transmitter operation.
Explains the Main Controller's use of CAN bus for PA cabinet control and monitoring.
Describes how external interlocks control transmitter operation and inhibit specific functions.
Details the components within a PA cabinet, varying by transmitter model.
Explains the splitter's function in distributing the RF input signal to PA modules.
Describes the module combiner summing module outputs and using circulators to absorb reflected power.
Explains RF detector circuits monitoring power levels and converting them to DC voltage.
Describes the Cabinet Controller's communication, control, and protection functions.
Details how rear door interlocks and dipswitch S3 affect cabinet operation and shutdown timers.
Discusses how multiple PA cabinets are used for higher power and their communication methods.
Details the circuits within the control cabinet, focusing on the Main Controller and Life Support.
Explains the Main Controller's programming and its division into parallel processes.
Describes the Life Support board's function in maintaining operation during Main Controller failure.
Explains how AC failure is detected and how it triggers a transmitter OFF command.
Details how external interlocks are handled at the cabinet level and affect exciters.
Explains voltage, current, temperature, and RF samples from drivers and the driver disable circuit.
Describes the protection of remote control inputs/outputs by diodes and buffers.
Explains the Main Controller's priority for exciter control and the Mute command function.
Details the main function of the Life Support board's CPLD and its role in auto-exciter changer over.
Explains manual switching of drive chains for dual exciter/driver transmitters.
Describes how dual exciter/drivers use J3-23, J3-21, and J3-22 to monitor switch status.
Explains the function of U30 as a pulse stretcher for ON/OFF commands.
Explains the Watch Dog circuit's function in monitoring the microprocessor and initiating resets.
Describes how transmitter states are held in relay memory during shut down.
Details how Control Panel commands pass through the Life Support board and are sent to the Main Controller.
Explains how the CPLD drives the light bar to indicate transmitter condition.
Describes how power samples are buffered on the Life Support board before being sent to the remote connector.
Explains Main Controller's control of exciter fold back power based on signal levels.
Details how forward and reflected power samples are buffered for remote metering.
Introduces the DD-1 Driver and its five major circuit blocks.
Explains the preamplifier's role in providing RF gain and gain control.
Describes the PA Pallet's role in providing RF gain for the driver.
Details the Driver Controller board's functions for bias regulation, monitoring, and fault reporting.
Explains the bias control circuits for PA pallets and preamps, including fault sensing.
Describes temperature protection using thermistors and adjustable threshold voltage.
Explains the AGC circuit's function in maintaining constant gain using detected RF samples.
Details the control of the driver, including fault reporting and ON/OFF control.
Describes the on-board DC-DC regulator and its function.
Explains the RF output board's role in providing RF output samples for AGC.
Details the 200-watt, 28 VDC switching power supply used in the driver module.
Provides detailed circuit descriptions for PA cabinets.
Explains how DC voltage represents RF levels for monitoring by the Cabinet Controller.
Describes the Cabinet Controller's communication, control, and protection functions.
Explains how reject power samples are processed for phase imbalance detection.
Describes how forward, reflected, and input power samples are processed.
Details fault indications at the U37 input and monitoring of power supplies, airflow, and interlocks.
Explains how the transmitter can be configured for multiple cabinets and addressing modules.
Describes how modules send fault indications to the Cabinet Controller.
Identifies the CAN interface components (Controller U33, Driver U30).
Details the interface for connecting PCs to the Cabinet Controller and communication lines.
Mentions the crystal input requirement for microprocessor operation.
Explains the use of flash memory for microprocessor code updates.
Explains the watchdog circuitry for monitoring the microprocessor and initiating resets.
Explains how ON/OFF control from GUI and Main Controller enters and is opto-isolated.
Explains EPROM's role in storing non-volatile parameter data.
Details microprocessor control of PA module phasing based on reject samples.
Explains the need for an accurate voltage reference for the DAC.
Mentions the location and removability of 32VDC power supplies for PA modules.
Mentions low voltage power supplies are vendor manufactured.
Lists the sub-assemblies within the Power Amplifier Module.
Explains the Module Controller's role in PA module protection, compensation, and interfacing.
Describes how the Module Controller enables or disables the RF amplifier.
Explains the AGC algorithm's compensation for frequency, temperature, and pallet failures.
Defines "AGC unlocked" failure related to the inability to adjust module gain.
Explains how module gain is maintained consistently over temperature.
Describes how module frequency response is stored and gain is compensated.
Details the Controller's use of a 1ms time base for monitoring conditions like over voltage and temperature.
Explains the three-strike action for recovering from momentary failures.
Describes how the Module Controller turns the PA OFF for no-load conditions or circulator failures.
Explains the DC switch circuit controlling DC voltage to PA Pallets and its disable function.
Explains the Phase and Gain board's function in compensating for differences between modules.
Describes the RF Module Driver Pallet's role in providing RF gain.
Explains the pallet RF splitter's function in distributing the signal to pallet inputs.
Describes the PA Module's parallel RF pallets and their push-pull amplifier circuits.
Explains the PA Pallet Combiner's function in summing RF power from PA Pallets.
Provides detailed circuit descriptions for PA modules.
Details the Module Controller's microprocessor, CAN interface, and communication protocol.
Describes the microprocessor's clock, input signal clamping, and CAN/RS485 interface.
Explains the DC switch circuit controlling voltage to PA Pallets and current monitoring.
Describes signals that create a fast turn-off for protection.
Explains watchdog circuits for monitoring the microprocessor and initiating resets.
Details cabinet and module identification and configuration settings via switches.
Explains how digital-to-analog converters send voltages to adjust RF module output.
Explains the Phase and Gain board's function in adjusting phase shift and amplitude.
Details the Harris UHF MRF183-based PA pallet sections.
Explains the input circuit's components and functions, including hybrids, baluns, and bias circuits.
Describes the push-pull amplifier pairs performing amplification in the UHF PA pallet.
Details the output circuit's components, including drain bias, matching, balun, and hybrid.
Explains the properties and types of hybrids used in combiners and dividers.
Lists the rules for signal splitting in 3 dB quadrature hybrids.
Lists the rules for combining signals using hybrids.
Explains the use of hybrids in attenuator and phase shifter operations.
Outlines maintenance and alignment procedures including routine maintenance, module repair, and calibration.
Covers routine mechanical maintenance tasks for the transmitter.
Provides instructions for cleaning cabinets, boards, and RF amplifier module fins.
Details periodic checks for tight wiring connections, lead dress, and abrasions in high-current circuits.
Explains the necessity of changing disposable filter media and checking blower motors.
Describes using precision directional couplers and digital power meters for measuring DTV average power.
Covers the removal and replacement of 32VDC power supplies.
Details how to remove a 32VDC power supply while the transmitter remains on air.
Guides on inserting a new power supply and restoring affected modules to the ON state.
Covers PA module removal and replacement procedures.
Explains removing PA modules while the transmitter is on air, noting potential over-temp faults.
Guides on sliding modules back into connectors and the transmitter ON button's role.
Details field replacement of individual pallets using a PA Pallet Replacement Kit.
Outlines four calibration procedures: Forward, Reflected, Driver, and Reject Load power.
Provides critical notes regarding PA cabinet door interlocks and switch settings before calibration.
Details calibrating PA Cabinet and system forward power RF detectors to provide 4 Vdc output.
Explains calibrating reflected power metering to 10% of forward power.
Details calibrating the Driver output power to match the GUI reading.
Guides on calibrating PA cabinet combiner reject loads to 100% on the GUI.
Explains that module combiner reject load RF detectors are factory set and replaceable without calibration.
Provides steps for calibrating the old style reject load detectors.
Provides steps for calibrating the new style reject load detectors.
Provides hardware calibration steps for 4-way and 8-way detectors.
Details adjusting VSWR foldback for CD-1A exciters, noting it's not required for APEX.
Covers complete setup procedures for the DD-1 Driver, including bias and AGC.
Provides a procedure for replacing or re-biasing the Driver Preamp Board.
Guides on re-biasing the Driver Pallet as part of a tune-up.
Guides on adjusting R88 and R89 for driver AGC setup and power output.
Details setting the RF OK LED trip point for drive chain switching or alarms.
Explains adjustments for overtemp and overcurrent alarm thresholds.
Describes jumper JP13's function in selecting internal or external opto-isolator supply.
Explains setting the driver to enable automatically on AC power application or via an ON command.
Outlines calibrating the GUI driver power reading to match a digital power meter.
Explains PA module phase adjustment using the GUI, focusing on reject levels.
Details the automatic phasing function available in GUI revision 2.3.0.
Guides on manually phasing modules when auto-phasing is ineffective or for optimization.
Describes adjusting cabinet phase and gain for multiple cabinet transmitters.
Covers procedures for changing Main Controller or Life Support boards without transmitter shutdown.
Details hot-swapping the Main Controller board, including EEPROM transfer and calibration.
Guides on hot-swapping the Life Support board, including setting drive control and VSWR foldback.
Explains adjusting the AC OK set point for transmitter turn-on voltage.
Details setting the AC FAIL trip point for transmitter shutdown at low AC voltage.
Covers replacing the Cabinet Controller board, including EEPROM transfer and interlock configuration.
Explains the EEPROM transfer and necessary calibrations if it needs replacement.
Details checking and configuring JP17 for interlock signal handling.
Refers to the DiamondCD™ Software Manual for detailed ISP procedures.
Describes failure modes for Module, Cabinet, and Main Controllers.
Explains module controller failure behavior and Pass FET requirements.
Details cabinet controller failure behavior, locking phase voltages, and continued operation.
Explains Main Controller failure, shift to Life Support, and loss of functions.
Describes transmitter behavior if Life Support and Main Controllers fail, and PA cabinet operation.
Provides troubleshooting steps for the GUI, including rebooting and attaching a keyboard.
Lists possible transmitter faults that appear on the GUI, grouped by screen.
Describes accessing the Drive Chain screen and lists the Exciter Mute fault.
Explains the Exciter Mute fault, its causes, and interlock connections.
Details the Exciter Fault, its trip adjustment, and switching behavior in dual exciter systems.
Explains the summary fault for the driver and its effect on dual-drive transmitters.
Lists internal driver faults indicated by a summary flag on the GUI.
Identifies a bad or disconnected control cable to the DD-1 controller board.
Indicates failure of the internal +28V power supply or AC outage, affecting output and fans.
Describes excessive current draw from the +28V supply, likely due to a shorted FET.
Explains FET failure detection, potential causes, and re-biasing procedures.
Details over-temperature detection by a thermistor and potential causes.
Identifies an RF output lower than the minimum set point, causing alternate exciter/driver switching.
Lists faults internal to PA Modules, noting PA Pallet as the only field-repairable item.
Describes warning for module frequency not matching system settings or GUI configuration.
Details EEPROM write errors and data retention behavior.
Notes +5V reference voltage issues affecting module calibration.
Indicates +12V not in tolerance on the Module Control board.
Explains module communication failure via CAN bus, including possible causes and troubleshooting steps.
Describes excessive current draw by the pallet, likely due to AGC issues.
Similar to pallet over-current but for the driver pallet, including current for transistors.
Explains FET failure based on pallet current levels and the three-strike policy.
Describes +32V source exceeding 33V, likely a power supply issue.
Indicates +32V source below 30V, likely a power supply issue.
Notes total current on +32V line exceeding 75A.
Indicates module temperature exceeding limits.
Describes high internal reflected RF, about 200W.
Identifies input RF being too high, causing modules to 3-strike.
Indicates input RF is too low, causing a warning but allowing continued operation.
Explains AGC circuit inability to maintain constant gain, leading to module shutdown.
Lists faults sensed by or on the Cabinet Controller.
Describes AC power dropping below threshold, causing micro reset and automatic restart.
Indicates missing or imbalanced 3-phase AC line voltage, protecting the blower motor.
Indicates low-voltage power supply failure, with no effect if the other supply is working.
Notes EEPROM write errors and potential data loss if AC is lost.
Describes EPLD signature mismatch, indicating a bad chip or programming failure.
Explains how external interlocks affect RF output and automatic restart based on dipswitch settings.
Indicates low air pressure, likely due to fan failure, causing cabinet trip-off.
Indicates the Cabinet Controller is not responding to the Main Controller.
Lists cabinet-level faults for the Control Cabinet.
Notes EEPROM write errors and data loss if AC is lost.
Indicates the Life Support board's clock or timer is not operational, requiring replacement.
Describes the failsafe interlock being opened by remote control or other devices.
Explains how external interlock faults appear on the GUI with numbers indicating the tripped interlock.
Describes AC power drop below threshold, saving configuration and resetting the micro.
Indicates low-voltage power supply failure, displaying LVPS A or B fault.
Lists three possible communication failures: TCP/IP, Harris Protocol RS-232, and GUI.
Describes a +32V fault at the module detector, affecting RF output.
Provides an index of replaceable parts with part numbers and page references.
Provides guidelines for field cutting and soldering of RF transmission line for system interconnection.
Details determining transmission line length and performing flange soldering.
Describes various methods for cutting transmission line, emphasizing a square smooth cut.
Explains the procedure for attaching silver soldered flanges for greater reliability.
Provides a procedure for cleaning soldered joints using acid solution and scrubbing.
Offers an alternate procedure for cleaning soldered transmission line using Naval Jelly.
Explains protection against lightning-induced transients and recommends surge protectors.
Details the requirements for effective grounding of electrical and electronic equipment.
Provides guidelines for ground wire size, impedance, and connections.
Suggests grounding methods using separate wires for AC power input and peripheral equipment.
Explains connecting DC grounds to a bus, then to common cabinet and earth ground.
Covers transmitter connection to earth ground, impedance requirements, and measurement.
Explains the necessity of grounding, bonding, and shielding for reliable operation.
Instructs to inspect package for damage, notify carrier, and verify acceptance test procedure.
Warns about hazardous output voltage and current, advising caution during connection.
States the power supply is for commercial/industrial environments and meets UL requirements.
Provides details on power supply configuration, clearances, and AC voltage verification.
Describes the power supply's design for 240VAC or 480VAC single-phase AC input.
Lists key features and detailed specifications for the power supply, including AC input and DC output.
Shows outline drawing and mounting hole information for the power supply.
Details the connections for the DB25 option connector, AC input, and DC output.
Provides procedures for bench testing fan failure detection and AC input.
Guides on removing the top cover and front panel to access and replace AC input fuses.
Details the process of removing and replacing the fan assembly.
Lists parts for field repairs with PMI part numbers, descriptions, and contact information.
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