Nautel XL12 Technical Instructions Download Page 193

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Figure SD-1 Electrical Schematic - XL12 - 12 000 Watt AM Broadcast Transmitter

Page SD-1

01 January 2002

Summary of Contents for XL12

Page 1: ...tallon Bangor Maine USA 04401 Nova Scotia Canada B0J 3J0 Phone 207 947 8200 Phone 902 823 3900 Fax 207 947 3693 Fax 902 823 3183 ISO 9002 REGISTERED ISO 9001 REGISTERED Copyright 2002 NAUTEL All right...

Page 2: ...tents 5 0 01 January 2002 Contents 6 0 01 January 2002 Contents 7 0 01 January 2002 Contents 8 0 01 January 2002 Contents 9 0 01 January 2002 Contents 10 0 01 January 2002 Contents 11 0 01 January 200...

Page 3: ...2002 5 5 0 01 January 2002 5 6 0 01 January 2002 5 7 0 01 January 2002 5 8 0 01 January 2002 5 9 0 01 January 2002 5 10 0 01 January 2002 5 11 0 01 January 2002 5 12 0 01 January 2002 5 13 0 01 Januar...

Page 4: ...01 January 2002 9 2 0 01 January 2002 9 3 0 01 January 2002 9 4 Blank SD 1 0 01 January 2002 SD 2 0 01 January 2002 SD 3 0 01 January 2002 SD 4 0 01 January 2002 SD 5 0 01 January 2002 SD 6 0 01 Janua...

Page 5: ...g PINCH CASUALTY S NOSE AND EXHALE TWO SLOW BREATHS INTO CASUALTY Figure 5 h REMOVE YOUR MOUTH and check for breathing Figure 6 i CONTINUE GIVING ONE BREATH EVERY FIVE SECONDS without interruption If...

Page 6: ...and do not handle affected areas more than necessary 7 Do not apply salves grease etc to burns 8 Do not remove burned clothing which adheres to the skin or break blisters 9 Cover the burn with a dry...

Page 7: ...until the patient is breathing on his own or until medical aid arrives Survival rates can be quite high if cardio pulmonary resuscitation is started within 3 to 4 minutes of the injury being received...

Page 8: ...ping costs incurred in returning the part assembly to the Customer 5 Warranty replacement parts and repair which are provided under items 2 or 3 shall be guaranteed for a period of ninety days from da...

Page 9: ...to thirteen months from shipment repair and exchange of modules is at no charge to the customer When the warranty has expired a charge of 80 of the list price for all exchanged modules is made If the...

Page 10: ...Cable 2 2 2 1 2 4 Antenna RF Output Disconnect 2 2 2 1 2 5 Antenna Tower 2 2 2 1 2 6 External Control Monitor Wiring 2 2 2 1 3 ELECTRICAL POWER 2 2 2 1 3 1 Nominal Voltage 2 2 2 1 3 2 Voltage Stabili...

Page 11: ...8 2 1 11 9 B Power Supply Fault Alarm 2 9 2 1 11 10 AC Fail Alarm 2 9 2 1 11 11 Power Supply Over Temp Alarm 2 9 2 1 11 12 Battery Low Alarm 2 9 2 1 11 13 External Interlock Alarm 2 9 2 1 11 14 Intern...

Page 12: ...2 2 11 REFERENCE GROUND INTERCONNECTION 2 19 2 3 TECHNICAL PRE COMMISSIONING 2 21 2 3 1 AC POWER SOURCE VARIABLES 2 21 2 3 1 1 Main Power Transformer Primary Tap Selection 2 21 2 3 1 2 Low Volts Pwr...

Page 13: ...CONTROLS AND INDICATORS 3 1 3 4 RF DRIVE TUNING PWB CONTROLS 3 1 3 5 RF DRIVE STAGE CONTROLS AND INDICATORS 3 1 3 6 AC DC POWER SUPPLY CONTROLS AND INDICATORS 3 1 3 7 8 INPUT RF COMBINER FILTER ASSEM...

Page 14: ...PDM FAILURE 4 7 4 12 3 RF POWER MODULE FAILURES 4 7 4 12 3 1 RF Drive Failure Detectors 4 7 4 12 3 2 Over Temperature Detector 4 8 4 12 3 3 Modulator Failure Detectors 4 8 4 12 4 RESETTING LATCHED PRO...

Page 15: ...r Module Tuning 5 12 5 5 21 3 RF Drive Level 5 12 5 6 REPLACEMENT OF RF POWER MODULE 5 13 5 6 1 RF POWER MODULE REMOVAL 5 13 5 6 2 RF POWER MODULE INSTALLATION 5 13 5 7 PWB REPLACEMENT ADJUSTMENT 5 14...

Page 16: ...Static Drain Assembly 6 6 6 5 3 6 Surge Arrestor Assembly 6 7 6 5 3 7 Capacitive Divider Assembly 6 7 6 5 3 8 RF Current Probe Assembly 6 7 6 6 CONTROL MONITOR FUNCTION 6 7 6 6 1 SYSTEM CONTROL PWB A1...

Page 17: ...7 2 1 3 Rectifier 6 12 6 7 2 2 Power Supply Monitor PWB 6 12 6 7 3 DC POWER SUPPLY PWB 6 12 6 7 3 1 Power Supply Temp Monitor 6 12 6 7 3 2 B Monitor 6 12 6 7 3 3 Relay Controls 6 12 6 7 3 4 Low Volta...

Page 18: ...ART NO COLUMN 8 2 8 6 6 X Y GRID COLUMN 8 2 8 6 7 OEM CODE COLUMN 8 2 9 ELECTRICAL SCHEMATICS 9 1 INTRODUCTION 9 1 9 2 COMPONENT VALUES 9 2 9 3 GRAPHIC SYMBOLS 9 1 9 4 LOGIC SYMBOLS 9 1 9 5 REFERENCE...

Page 19: ...5 6 5 3 RF Drive Waveform 5 7 5 4 Interphase PDM Waveform 5 7 5 5 Interphase PDM Waveform 5 8 5 6 pdm Waveform 5 8 5 7 Chopper Control Waveform 5 9 7 1 c Unbalanced Drive 7 4 7 2 2 PDM Unbalanced Driv...

Page 20: ...bly Detail NAPI22E Exciter Interface PWB MD 7 MD 8 Assembly Detail NAE83 RF Drive Panel MD 8 MD 9 Assembly Detail NAAA02 RF Drive Amplifier MD 9 MD 10A Assembly Detail NAPI60 01 and NAPI60 02 RF Drive...

Page 21: ...s Waveforms for RF Drive Tuning PWB A11A2 7 12 7 8 Test Voltages Waveforms for Distribution PWB A16 7 13 7 9 Test Voltages Waveforms for System Control PWB A1A3 7 14 8 1 Manufacturer s Code to Address...

Page 22: ...REE The family tree for this transmitter is depicted in figure 8 1 It identifies the major assemblies and shows their hierarchical assembly relationship It also identifies the reference designation as...

Page 23: ...er 5ppm up to 10MHz Fluke Model 1900A measure carrier frequency Oscilloscope Tektronix Model T922 testing and maintenance Modulation Monitor 50 ohm input impedance 100 to 125 mod depth TFT Model 375 t...

Page 24: ...r HAZ79 located in ancillary parts kit Tuning RF drive Table 1 3 Glossary of Terms TERM DESCRIPTION Integral Modular Reserve IMR Identical modules operating in an overall system design such that failu...

Page 25: ...emperature rise For air conditioning requirements it can be assumed 16 of the power being consumed from the AC power source is converted to waste heat NOTE A simple method of determining the number of...

Page 26: ...mination at the transmitter reference ground This toroid will be transparent to the RF signal but will present an impedance to transients originating in the antenna 2 1 2 4 Antenna RF Output Disconnec...

Page 27: ...inated by an appropriate mating connector 2 1 5 EXTERNAL RF DRIVE SOURCE There is provision to apply an externally generated RF drive monaural or AM stereo to the exciter interface PWB s EXT RF BNC co...

Page 28: ...M Stereo Exciter as RF Drive Source When the optional C QUAM AM stereo exciter PWB A2A2 is installed as exciter A s RF drive source exciter B may be configured for AM stereo or monaural operation from...

Page 29: ...d 2 1 8 REMOTE CONTROL CIRCUITS The on off status active A B exciter preset RF power level power level adjustment alarm recall and system alarm reset can be controlled remotely by switching circuits t...

Page 30: ...terface PWB is E3 The EXCITER B input terminals are TB1 7 and TB1 8 and the associated 3 pin header 2 socket shunt post on the remote interface PWB is E4 NOTE There must be a minimum two second interv...

Page 31: ...the RF load and must be maintained until contact closure has occurred and an appropriate impedance has been connected to the transmitter s RF output The RF output will be instantly restored to its ori...

Page 32: ...e in the RF output filter is in excess of 85 C is available on TB2 22 FILTER OVER TEMP A negative logic output current sink to ground will be present for an alarm condition 2 1 11 3 High Reflected Pow...

Page 33: ...Internal Interlock Alarm An alarm output that indicates the RF output is being inhibited because the transmitter s ground wand is not properly stored in its retaining clip is available on TB3 11 INT I...

Page 34: ...TROL switches on its control monitor panel is available on TB2 15 REMOTE STATUS A current sink to ground will be present as the logic true condition when remote control is selected An open collector o...

Page 35: ...h installation will dictate the parts required and will normally include the following A suitable 50 ohm RF output coaxial cable terminated by a 1 5 8 inch EIA connector complete with centre male conn...

Page 36: ...he power transformer will be removed The extent of any additional disassembly will be dictated by the shipping method site information provided by the user and the handling equipment of the mover a It...

Page 37: ...n tray mounting trays Each panel is secured by a pawl fastener which requires a quarter turn counter clockwise to release d Gain access to the interior of the RF output filter A21 by removing its rear...

Page 38: ...entry hole and reassemble it as depicted in figure 2 3 Ensure insulating shoulder washer is positioned in the entry hole from the exterior side and the flat insulating washer is against the interior o...

Page 39: ...the AC DC power supply compartment b Position the power transformer assembly directly behind the cabinet with its taps facing the right side viewed from rear as depicted in figure MD 2 Ensure the two...

Page 40: ...en the AC power service entrance and the transmitter Refer to figure MD 29 for the circuit breaker enclosure s dimensional assembly information NOTE The circuit breaker enclosure contains a number of...

Page 41: ...esponsible for proper connection a Verify the RF feed cable has been cut to the required length and has been terminated by a 1 5 8 inch EIA flange connector which contains a male inner connector bulle...

Page 42: ...remote interface PWB and connect the wiring to the termination point recorded in step a connect the single control wire from each single ended input to its associated negative terminal connect both c...

Page 43: ...nect right audio s positive input to TB1 10 negative input to TB1 8 and shield to TB1 9 2 2 9 5 External RF Drive Wiring If the RF drive for one or both exciters is to be applied from an external sour...

Page 44: ...12 000 WATT AM BROADCAST TRANSMITTER XL12 Page 2 20 01 January 2002 Figure 2 4 External Input Output Interface...

Page 45: ...TE Access to the main power transformer and its terminals is obtained through the rear door opening a Using the voltage recorded as the nominal loaded phase to phase RMS voltage enter table 2 1 and de...

Page 46: ...e the desired source Refer to the Preparation for Use section of the installed PWB s service instruction manual for selection instructions The factory default selection is the integral RF oscillator N...

Page 47: ...s selected during factory tests Refer to the Transmitter Configuration Sheet provided with the Factory Test Results to determine switch settings that were established to obtain this frequency These se...

Page 48: ...NOTE The alarm status outputs are grouped into sets see table 2 4 The presence or absence of the resistor array associated with each set will dictate which output option is selected for the whole set...

Page 49: ...E1 on 3 pin header XE1 of the system control PWB determines which alarm display option is selected The system control PWB is located on the rear of the control monitor panel If necessary refer to the...

Page 50: ...ply A2A1A3 B RF Drive or Freq Synthesizer PWB A2A1A4 B Interphase PDM driver PWB A2A1A6 B RF Drive Amplifier A11A3 B Regulated Power Supply A11A5 2 4 1 PRECAUTIONS TO BE OBSERVED The transmitter conta...

Page 51: ...output NOTE Exciter B is selected in the following procedures unless a test specifically requires exciter A to be selected This selection ensures the procedures can be used regardless of RF drive sou...

Page 52: ...cuits are reset Press release the SYSTEM RESET switch l All bicolor STATUS lamps shall be green NOTE If a STATUS lamp is red a fault condition exists Refer to section 5 to determine the cause and the...

Page 53: ...ust its 4 c variable capacitor C49 d Select exciter A Press release EXCITER A switch noting its integral lamp turns on and the EXCITER B switch s lamp turns off e Repeat steps a thru c f Disconnect th...

Page 54: ...s peak to peak amplitude should be between 66 and 87 volts Figure 2 7 2 pdm Frequency Waveform 2 pdm 150 kHz DC Coupled c Verify EXCITER RF DRIVE lamp is green indicating the RF drive level being appl...

Page 55: ...the DC voltage provided by the batteries on the system control PWB was interrupted or the RF power level was set to zero by simultaneously pressing releasing the DECR and INCR RF POWER switches the me...

Page 56: ...ort pins 1 and 2 of 3 pin header XE16 RF 1 using a 2 socket shunt post E16 Adjust RF PWR 1 potentiometer R26 for a reading of 5 0 volts rms l Select preset RF power level 2 lamp in RF POWER 2 switch s...

Page 57: ...nfigured as detailed in steps g and h of paragraph 2 4 2 a Verify the audio input is configured as a common source for exciter A and B exciter interface PWB s AUDIO SOURCE switch is set to its SINGLE...

Page 58: ...uts of the C QUAM AM stereo exciter PWB using a test audio switching circuit as defined in the exciter s service instruction manual e Set the C QUAM AM stereo exciter PWB to produce an AM stereo outpu...

Page 59: ...ests that are required as follows a Verify the RF power stage is turned off b Connect or verify the transmitter s RF output is connected to an antenna system 2 4 7 1 Connect the program audio input s...

Page 60: ...ight audio from the AM stereo exciter was disconnected from the remote interface PWB s AUDIO terminals to connect an audio generator for other test procedures ensure audio generator has been disconnec...

Page 61: ...d as follows NOTE The values of resistor A16R3 and A16R6 was selected during manufacture It should not be necessary to change select their value unless the distribution PWB is replaced or tuning of th...

Page 62: ...D 6 for the location of the exciter interface PWB A2A1 RF drive PWBs A2A1A1 A2A1A4 interphase PDM drive PWBs A2A1A5 A2A1A6 DC power supply PWBs A2A1A2 A2A1A3 and optional C QUAM AM stereo exciter PWB...

Page 63: ...cator s purpose function Refer to figure MD 18 for the location of controls and indicators on the 8 input RF combiner filter assembly FORWARD REFLECTED POWER PROBE ASSEMBLY 3 8 Table 3 7 identifies co...

Page 64: ...turned on indicates the PA volts being applied to the RF power amplifiers by the modulators is selected as the DC voltage to be displayed by the DC VOLTS meter read 0 200 scale A1A2DS3 MD 3 48V When t...

Page 65: ...WR Bi colour display which indicates the status of the RF output s terminating impedance by monitoring the reflected power level Display is green when the peak reflected power is less than 2000 watts...

Page 66: ...he preset level for the selected RF power level Display is red when RF output has been automatically reduced cutback because three or more RF shutbacks normally caused by high reflected power or high...

Page 67: ...sistors R1 R3 and discharge resistor R5 Display is green when the sensed temperature is satisfactory less than 85 C Display is red when sensed temperature exceeds 85 C A1A3DS12 MD 3 B POWER SUPPLY AC...

Page 68: ...LOCKS EXTERNAL Bi colour display which indicates status of external interlock circuit Display is green when circuit is intact Display is red when an external interlock is open RF power stages will be...

Page 69: ...reen when the RF stress current threshold is not being exceeded Display is red when the RF stress current threshold is exceeded normally caused by an impedance change in the RF output filter s tuned c...

Page 70: ...XE1 s FLASHING position pins 2 3 shorted A1A3R157 MD 3 VOLT METER CAL Adjusted to precisely set the DC VOLTS meter reading when 15 VDC is selected 15V lamp is on A1A3R159 MD 3 POWER METER CAL Adjuste...

Page 71: ...en if the RF power stage is off not producing an RF output When the RF power stage is turned on the RF output will be greater than the last established level for that preset power level In addition to...

Page 72: ...F output will be less than the last established level for selected preset power level If CONTROL and CONTROL switches are actuated simultaneously the carrier reference voltage and therefore the RF out...

Page 73: ...CITER STANDBY status display will switch to green Since exciter B has failed there is no reserve exciter A time delay in the exciter selection circuitry prevents more than one exciter change in any tw...

Page 74: ...sing and releasing the switch LOCAL control has been selected When LOCAL control is selected all of the remote control circuits except the external interlock and PDM inhibit during antenna switching a...

Page 75: ...set level for this selection A1A3S18 MD 3 CONTROL RF POWER 5 Push button switch that controls and indicates the status of preset RF power level 5 When its integral lamp is turned on by pressing and re...

Page 76: ...MD 3 RF PWR 2 Bi position selector circuit that allows the user to configure the RF PWR 2 input to accept either an open ended or a differential remote control input See A1A4E1 for selection options...

Page 77: ...en ended or a differential remote control input See A1A4E1 for selection options A1A4R26 MD 3 n RF PWR 1 Adjusted in conjunction with selection of the remote interface PWB s E16 E17 shunt posts to set...

Page 78: ...is on and the RF output is the desired level Refer to paragraph 2 4 5 3 for adjustment procedure A1A4R31 MD 3 n RF PWR 6 Adjusted in conjunction with selection of the remote interface PWB s E26 E27 sh...

Page 79: ...er switch monitor PWB A1A1 and protrudes thru the control monitor panel when installed Refer to figure SD 5 of this manual for its electrical schematic and to figure MD 4 for its assembly detail Denot...

Page 80: ...1000Hz sine wave A2A1R4 MD 7 IPM GAIN 2 Adjusted to set the reference voltage for the IPM compensation circuit to obtain an IPM compensation output that represents the voltage present at the most neg...

Page 81: ...ly is enabled when its associated exciter is the active exciter and providing a regulated 5 VDC output when turned on A2A1 DS3 MD 6 15 VDC Indicates the DC power supply PWB s 15 VDC power supply is en...

Page 82: ...complete listing of its controls indicators NOTE A2A1 Denotes two identical RF drive PWBs may be installed One for exciter A A2A1A1 and one for exciter B A2A1A4 Exciter A s RF drive PWB will not be in...

Page 83: ...Table 3 3 RF Drive Tuning PWB Controls and Indicators PANEL MARKING REF FIG NOMENCLATURE FUNCTION DES NO USED IN TEXT A11A2R5 MD 10 RF DRIVE THRESHOLD Adjusted to set the RF drive fail threshold to de...

Page 84: ...power supply A11A4 to ensure the RF power modules have an adequate RF drive signal A11A5DS1 MD 11 15V When turned on indicates 15 VDC is being applied to the control circuit of exciter B s regulated...

Page 85: ...WER A23K1 and FULL POWER A23K2 relays AC power is not removed from the input contactors Rear door must be closed in addition to resetting AC power input off then on to restore transmitter operation A2...

Page 86: ...nerate the RF drive B voltage for RF drive amplifier B at 5 0 amperes A28S1 MD 26 B Under Volt Test Normal Bi position selector that enables the user to monitor the voltage applied to the B Monitor ci...

Page 87: ...g an output and it is applied to the DC power supply monitor PWB A29DS7 MD 27 B ON When turned on warns user that the B power supplies are producing the B DC voltage nominally 312 VDC A29R11 MD 27 AC...

Page 88: ...1 MD 18 Filter Interlock Micro switch that is held in its spring loaded normally open position and completes the combiner filter portion of the internal interlock circuit when the filter s ground wand...

Page 89: ...ors PANEL MARKING REF FIG NOMENCLATURE FUNCTION DES NO USED IN TEXT A21A2A1S1 MD 16 REFLD PWR CAL In circuit elements determine load impedance for the secondary winding of the forward reflected power...

Page 90: ...wer produced by the power modules The following will not remove the AC power source voltage from the transmitter or inhibit any of the internal low voltage DC supplies or the B power supply If the rea...

Page 91: ...voltages are not present on external control monitoring circuits when they are connected PRE STARTUP CHECKS 4 6 Prior to applying input power to the transmitter observe the following a Verify all asse...

Page 92: ...L REMOTE CONTROL 4 8 The transmitter s operational control functions RF on off status preset RF power level selection RF power level trim and the active exciter selection and two of its status control...

Page 93: ...atic transfer has occurred because it failed In this case the control monitor panel s STATUS display s EXCITER STANDBY lamp will have changed from green to red and there is no reserve exciter 4 9 1 3...

Page 94: ...nd release will decrease the RF power level by one increment If the switch is held its integral lamp will turn on while it is pressed and the RF power will slew in a decreasing direction after a 0 25...

Page 95: ...alled This feature allows a maintainer to identify the cause of nuisance shutbacks that disrupt the RF output but are not present during initial fault diagnostics Refer to figure 4 1 to identify locat...

Page 96: ...se PDM driver is part of the selected main exciter a two stage sequence of events will occur The RF output will be turned off the control monitor panel STATUS display s EXCITER INTERPHASE PDM DRIVE an...

Page 97: ...rmal the protection circuit will instantly return to its latched failure state If the function is not abnormal it may be because sufficient time has elapsed to cool down the over heated area or becaus...

Page 98: ...edure 5 5 22 RF Power Module Replacement 5 6 System Control PWB Replacement 5 7 1 Distribution PWB Replacement 5 7 2 Exciter Interface PWB Replacement 5 7 3 Power Supply Control PWB Replacement 5 7 4...

Page 99: ...OFF AIR TROUBLE SHOOTING Off air trouble shooting must be performed when replacement of a defective RF power amplifier module or routine on air calibration adjustments will not restore operation It i...

Page 100: ...le is displaying an alarm and which alarm lamps are on b Attempt to reset the RF power module by pressing RESET on its front panel If it successfully resets the alarm indication may have been false If...

Page 101: ...coming AC voltage and verify the power supply transformer is tapped as tabulated in table 2 2 c If the transformer taps are correct the monitoring circuit is suspect Contact Nautel for troubleshooting...

Page 102: ...tiometer R3 c If the voltage cannot be adjusted confirm the following voltages 15 VDC at J1 4 and 50 VDC at E1 d If the input voltages checked in step c are satisfactory and the output cannot be adjus...

Page 103: ...Trouble shoot an RF DRIVE alarm as follows Figure 5 2 c Output Waveform c 1700kHz AC Coupled a The RF drive alarm initiates an automatic exciter changeover to the standby exciter To trouble shoot a de...

Page 104: ...ion circuitry or the system control PWB s alarm circuitry Trouble shoot an INTERPHASE PDM DRIVE alarm as follows Figure 5 4 Interphase PDM Waveform pdm 75kHz DC Coupled a The interphase PDM alarm init...

Page 105: ...s described in step f suspect the interphase PDM driver PWB Figure 5 6 pdm Waveform pdm 75kHz DC Coupled 5 5 13 EXCITER MODULATOR PROTECTION ALARM The exciter monitors the output of the modulators in...

Page 106: ...uit Trouble shoot the STANDBY alarm as follows a Press hold ALARM RECALL and record any alarm indicators that glow red Trouble shoot any recorded alarms to determine the cause of the exciter changeove...

Page 107: ...bution PWB s detection circuitry or a fault in the system control PWB s alarm circuitry Trouble shoot an output network RF current alarm as follows a Verify the VSWR of the output load does not exceed...

Page 108: ...d Perform a visual inspection of the RF output filter Inspect for signs of overheated and or defect components or loose connections e Using ohmmeter measure the impedance across thermistor A21RT1 If...

Page 109: ...Using the screwdriver Nautel Part HAZ79 from the transmitter ancillary kit adjust RF power module A s RF drive tuning inductor for a minimum reading Refer to the RF power module service instruction bo...

Page 110: ...ew at the bottom front of the RF power module the connector must be removed from A1J1 to allow access to the screw f Carefully pull the RF power module forward and lift it out of the transmitter NOTE...

Page 111: ...e set to zero RF OFF EXCITER A RF PWR 1 shall be selected The meters shall be turned off integral lamp of METER ON OFF switch shall be off k Ensure to toggle METER ON OFF to enable the meters before p...

Page 112: ...and retain mounting hardware for two interphase PDM drive PWBs A2A1A5 and A2A1A6 on the exciter assembly Remove PWBs noting identification for correct re assembly d Remove and retain mounting hardwar...

Page 113: ...interphase PDM driver PWB refer to figure MD 6 to locate an interphase PDM driver PWB a Press RF OFF on the front panel of the transmitter b Remove faulty interphase PDM driver PWB from exciter panel...

Page 114: ...nputs the control monitor function will output the necessary control signals to the exciter stage RF power stage and AC DC power supply to ensure proper operation and protection of the transmitter sys...

Page 115: ...relay K2 III Dual Audio Source If separate mono audio sources are used for each transmitter exciter the AUDIO SOURCE switch is set to DUAL SOURCE When a dual audio source is used the audio input wiri...

Page 116: ...rough the exciter interface PWB and is used to drive the PDM ramp integrator circuit Refer to the frequency synthesizer PWB instruction manual for detailed information 6 3 2 3 C QUAM1 AM Stereo Excite...

Page 117: ...CR1 to the base of transistor Q2 which provides an alarm signal should the RF drive power supply fail The RF DR B FAIL alarm output is normally at ground potential and switches to an open circuit cond...

Page 118: ...for the RF power module cooling fans which is turned on when the associated transmitter RF ON status is active When the fans on input at J5 8 is at 5 VDC FET Q2 will be turned on providing a ground r...

Page 119: ...d through the relay contact Capacitors C4 thru C7 provide the necessary reservoir for their associated RF power module 6 5 3 2 RF Output Filter The RF output filter A21 accepts the combined RF output...

Page 120: ...functions are Produces a DC voltage as the carrier reference output that ultimately determines the transmitter s RF carrier level This voltage is used as the reference voltage for a variable pulse dur...

Page 121: ...e single throw on off switch It must apply a ground potential from its on position to the remote interface PWB s SYSTEM RESET terminal when all latched alarms are to be cleared and power modules reset...

Page 122: ...the cause of the alarm has been removed the RF output will be restored at an exponential rate over a 200 millisecond period 6 6 14 1 RF Stress Current Alarm The RF Current Alarm output is applied to...

Page 123: ...ideal voltage for the power transformer s selected primary winding taps 6 6 14 12 Modulation Protection Alarm The Modulation Protection Alarm output is applied to the remote interface PWB s ALARM MOD...

Page 124: ...ied in the DC power supply EMERGENCY ON OFF switch S1 is located on the front door and is used to de energize the charge and full power relays and therefore the power transformer A23A1T1 is removed Th...

Page 125: ...tor A23K2 to de energize remove AC supply to power transformer The P S over temp signal is also activated and applied to the control monitor function to be saved in memory 6 7 3 2 B Monitor A sample o...

Page 126: ...s R4 R5 R6 This sample voltage is smoothed by capacitor C2 and resistor R13 and is used as a DC sample proportional to the level of the AC mains voltage at the inverting input pin 2 of U1 A When this...

Page 127: ...Table 7 2 provides typical test voltages and references to waveforms for the RF drive PWB Refer to the RF drive PWB service instruction manual for additional trouble shooting information 7 3 3 DC POWE...

Page 128: ...ual for trouble shooting information CONTROL MONITOR FUNCTION 7 6 The following section provides trouble shooting information for the control monitor function 7 6 1 SYSTEM CONTROL PWB Table 7 9 provid...

Page 129: ...RM TP1 Ground Ground TP2 PDM 1 3 0 5V TP3 PDM 2 3 0 5V TP4 Detected Carrier Reference 2 0 5V TP5 Carrier Reference 7 5 0 5V TP6 LVPS Detector Threshold High 2 0 0 1V TP7 LVPS Detector Threshold Low 1...

Page 130: ...FORM TP1 Ground Ground TP2 Ground Ground TP3 Ground Ground TP4 Carrier Frequency c See figure 7 3 TP5 IPM Compensation Input 5V TP6 c Unbalanced Drive See figure 7 1 TP7 2 PDM Unbalanced Drive See fig...

Page 131: ...ANSMITTER XL12 Page 7 5 01 January 2002 Table 7 3 Test Voltages for DC Power Supply PWB A2A1A2 A2A1A3 LOCATION DESCRIPTION TEST VOLTAGE WAVEFORM TP1 Ground Ground TP2 15V 15 0 4V TP3 5V 5 0 0 2V TP4 1...

Page 132: ...P6 Buffered Gain Control 7 1V TP7 Carrier Level Control Input See figure 7 7 TP8 Buffered B Sample 7 1V TP9 Carrier Level Control Output See figure 7 8 TP10 Ramp See figure 7 9 TP11 Ramp Level 1 8V TP...

Page 133: ...io with Positive Peak Limiting Figure 7 7 Carrier Level Control Input Monitor TP9 RF 12kW 50 Mod MOD 1000Hz Figure 7 8 Carrier Level Control Output Figure 7 9 Linear Integrator Output Monitor TP3 RF 1...

Page 134: ...ase Generator Input PDM 1 Figure 7 11 Interphase Generator Input PDM 2 Figure 7 12 PDM1 Output Figure 7 13 PDM2 Output Monitor TP14 RF 12kW 50 Mod MOD 1000Hz Monitor TP15 RF 12kW 50 Mod MOD 1000Hz Mon...

Page 135: ...12 000 WATT AM BROADCAST TRANSMITTER XL12 Page 7 9 01 January 2002 Figure 7 14 PDM Output Monitor TP18 PDM 72kHz...

Page 136: ...0 01 January 2002 Table 7 5 Test Voltages for Regulated Power Supply PWB A11A4 A11A5 LOCATION DESCRIPTION TEST VOLTAGE WAVEFORM E1 48V Supply 50V E2 Ground Reference Ground E3 RF Drive B See Transmitt...

Page 137: ...e 7 6 Test Voltages Waveforms for RF Drive Amplifier A11A1 A11A3 LOCATION DESCRIPTION TEST VOLTAGE WAVEFORM E1 RF Amplifier Output See Figure 7 15 TP1 RF Amplifier Input See Figure 7 16 Figure 7 15 RF...

Page 138: ...7 Test Voltages Waveforms for RF Drive Tuning PWB A11A2 LOCATION DESCRIPTION TEST VOLTAGE WAVEFORM TP1 Ground Reference Ground TP2 Detected RF Drive 6 5V TP3 RF Drive Fail Alarm not active 0V TP4 Tune...

Page 139: ...hold 6 8V TP2 Ground Reference Ground TP3 Ground Reference Ground TP4 Filter High Temp Alarm Not Active 0V TP5 Detected RF Current Sample 1 54V TP6 RF Current Detector Bias 1 62V TP7 RF Current Detect...

Page 140: ...11V TP9 8V 8 11V TP10 24V 22 27V TP11 24V 22 27V TP12 48V 46 53V TP13 Watchdog Timer See Figure 7 19 TP14 Carrier Reference Fault Detector Output 0V TP15 Reset 5V 5ms TP16 Reset PM AC PWR 5V 5ms TP17...

Page 141: ...tified table 8 4 2 WHEN REFERENCE DESIGNATION IS KNOWN Locate the information for a part when the full reference designation is known as follows Enter the family tree depicted in figure 8 1 with the f...

Page 142: ...r preferred choice A JAN MIL number has been assigned as the manufacturer s part number where practical to assist the user in finding a suitable replacement part The use of this number does not restri...

Page 143: ...15 Riverdale Avenue Newton Massachusetts 02158 09482 AMP of Canada Limited 20 Esna Park Drive Markham Ontario Canada L3R 1E1 USA customers use 00779 09675 Raytheon Canada Limited 400 Phillips Street...

Page 144: ...llinois 60626 50434 Hewlett Packard Company 640 Page Mill Road Palo Alto California 94304 52072 Circuit Assembly Corporation 18 Thomas Street Irvine California 92718 56289 Sprague Electric Company 87...

Page 145: ...ctifier 9220 Sunset Boulevard PO Box 2321 Terminal Annex Los Angeles California 90069 82807 Milwaukee Resistor Company 700 W Virginia Milwaukee Wisconsin 82877 Rotron Incorporated Custom Division 7 Ha...

Page 146: ...2A1A1 OR OR C QUAM AM STEREO EXCITER PWB NAPE49 SEE NAPE MANUAL A2A2 OR DC POWER SUPPLY NAPS06 SEE NAPS06 MANUAL A2A1A2 DC POWER SUPPLY NAPS06 SEE NAPS06 MANUAL A2A1A3 FREQUENCY SYNTHESIZER PWB NAPE60...

Page 147: ...TPUT RELAY ASSY 183 8140 PART OF TABLE 8 2 A11A6 F1830337 V1 NOT USED A12 NOT USED A13 NOT USED A14 NOT USED A15 RF POWER MODULE NAP29 SEE NAP29 MANUAL A9 RF POWER MODULE NAP29 SEE NAP29 MANUAL A10 DI...

Page 148: ...AP ASSEMBLY 183 7038 PART OF TABLE 8 16 A23A3 LVPS TRANSFORMER ASSEMBLY 183 7024 PART OF TABLE 8 16 A23A2 CHOKE STRAP ASSEMBLY 183 7035 PART OF TABLE 8 16 A23A4 DC POWER SUPPLY PWB NAPS16 SEE TABLE 8...

Page 149: ...API50A See Table 8 10 37338 A17 Fan Tray Assembly 183 8350 183 8350 37338 A17B1 Fan Brushless DC 24V 140 CFM ZA42 W2G110 AK43 31 62292 A17B2 Fan Brushless DC 24V 140 CFM ZA42 W2G110 AK43 31 62292 A17P...

Page 150: ...onnector MTA Keyed 12 Pin 22AWG JU26 1 644463 2 00779 P3 Connector MTA Keyed 12 Pin 22AWG JU26 1 644463 2 00779 P4 Connector MTA Keyed 12 Pin 22AWG JU26 1 644463 2 00779 P5 Connector MTA Keyed 12 Pin...

Page 151: ...ector Kit D Sub 25 Way Female 183 5010 183 5010 37338 P49 Connector Kit 17 16 S Std Clamp 182 5013 182 5013 37338 P50 Connector Coaxial BNC 50 Clamp JDP25 69475 02660 P51 Connector Coaxial BNC 50 Clam...

Page 152: ...MIL OEM OEM CODE DES AND DESCRIPTION PART NO PART NO CODE XF3 Fuseblock 30A 600V 2 Position FD02 BM6032SQ 71400 USE CODE EXPLANATION Denotes item is optional and replaces RF drive PWB A2A1A1 when it...

Page 153: ...Light Emitting Yellow 8 6mm Lg QM19 SSL LX5093YD D 2 1EM90 A2DS5 Diode Light Emitting Yellow 8 6mm Lg QM19 SSL LX5093YD B 4 1EM90 A2DS6 Diode Light Emitting Yellow 8 6mm Lg QM19 SSL LX5093YD B 3 1EM90...

Page 154: ...1 183 2021 37338 W3P1 Connector IDC DIP 26 Socket 0 1 x 0 1 JF37 CA 26 IDS2 F 52072 W3P2 Connector IDC DIP 26 Socket 0 1 x 0 1 JF37 CA 26 IDS2 F 52072 W4 Ribbon Cable Assembly 26 Cond 183 2021 183 202...

Page 155: ...3 56289 C21 Capacitor Ceramic 0 1uF 10 100V CCG07 CKR06BX104KRV E 5 56289 C22 Capacitor Ceramic 0 1uF 10 100V CCG07 CKR06BX104KRV F 4 56289 C23 Capacitor Ceramic 0 1uF 10 100V CCG07 CKR06BX104KRV N 2...

Page 156: ...CR10 Diode General Purpose 200V 0 1A QAP29 1N4938 D 3 27014 CR11 Diode General Purpose 200V 0 1A QAP29 1N4938 D 2 27014 CR12 Diode General Purpose 200V 0 1A QAP29 1N4938 D 3 27014 CR13 Diode General P...

Page 157: ...Connector Coaxial BNC PWB Mount JF35 R141426161 O 6 0GP12 J2 Connector Coaxial BNC PWB Mount JF35 R141426161 O 4 0GP12 J3 Header DIP 26 Pin Contacts 0 1 x 0 1 161 3007 26 161 3007 26 C 6 37338 J4 Hea...

Page 158: ...10 Ohms 1 1 4W RAB01 MF55D10R0F I 2 59124 R36 Resistor Metal Film 10 Ohms 1 1 4W RAB01 MF55D10R0F J 2 59124 R37 Resistor Metal Film 10 Ohms 1 1 4W RAB01 MF55D10R0F J 2 59124 R38 Resistor Metal Film 1...

Page 159: ...59124 R84 Resistor Metal Film 475 Ohms 1 1 4W RAB21 MF55D4750F E 1 59124 R85 Resistor Metal Film 475 Ohms 1 1 4W RAB21 MF55D4750F F 3 59124 R86 Resistor Metal Film 475 Ohms 1 1 4W RAB21 MF55D4750F F 2...

Page 160: ...tre 161 3008 03 161 3008 03 37338 XE23 Header SIP 3 Pin Contacts 0 10 Centre 161 3008 03 161 3008 03 37338 XE24 Header SIP 3 Pin Contacts 0 10 Centre 161 3008 03 161 3008 03 37338 XE25 Header SIP 3 Pi...

Page 161: ...0V CS41 82DA222M050HA2D B 12 62643 C15 Capacitor Tantalum Dipped 10uF 35V CCP36 TAP106K035G C 1 96095 C16 Capacitor Tantalum Dipped 10uF 35V CCP36 TAP106K035G C 2 96095 C17 Capacitor Tantalum Dipped 1...

Page 162: ...11 04713 CR13 Diode General Purpose 200V 0 1A QAP29 1N4938 D 10 27014 CR14 Diode General Purpose 200V 0 1A QAP29 1N4938 E 9 27014 CR15 Diode General Purpose 200V 0 1A QAP29 1N4938 E 9 27014 CR16 Diode...

Page 163: ...5D1003F E 8 59124 R6 Resistor Metal Film 100K Ohms 1 1 4W RAC01 MF55D1003F D 9 59124 R7 Resistor Metal Film 100 Ohms 5 2W RBP07 GS 3 100 Ohms B 5 75042 R8 Resistor Metal Film 100K Ohms 1 1 4W RAC01 MF...

Page 164: ...D1003F E 14 59124 S1 Switch Slide DP3T PWB ON ON ON SD02 MSSA 2350 D 6 95146 U1 IC Transistor Array 8 Darlingtons UM28 ULN2803A D 3 04713 U2 IC Analog Multiplier UN12 RC4200AN B 3 09675 U3 IC Comparat...

Page 165: ...KC09 W389DZCX 3 94696 A7 Relay Assembly 183 8145 183 8145 37338 A7CR1 Diode General Purpose 200V 0 1A QAP29 1N4938 27014 A7K1 Relay 24VDC SPDT NC NO DB DM 30A KC01 W389DZCX 3 94696 L1 RF Drive Coil As...

Page 166: ...Diode Power Rectifier 4A Ultra Fast QI10 MUR415 E 2 04713 J1 Header MTA Keyed 4 Posts 0 156 Centre JU20 640383 4 A 3 09482 J2 Connector Coaxial BNC PWB Mount JF35 R141426161 A 2 0GP12 L1 Inductor Cho...

Page 167: ...7 CKR06BX104KRV D 1 56289 C10 Capacitor Ceramic 0 01uF 10 100V CCG04 CKR05BX103KRV F 1 56289 C11 Capacitor Ceramic 0 01uF 10 100V CCG04 CKR05BX103KRV B 4 56289 C12 Capacitor Ceramic 0 01uF 10 100V CCG...

Page 168: ...istor Metal Film 100K Ohms 1 1 4W RAC01 MF55D1003F D 2 59124 R22 Resistor Metal Film 100 Ohms 2 1 2W RAP05 RL20S101G E 3 35005 R23 Resistor Metal Film 100K Ohms 1 1 4W RAC01 MF55D1003F E 2 59124 1 2 R...

Page 169: ...White 5A J043 105 0751 001 E 4 74970 TP8 Connector Jack White 5A J043 105 0751 001 F 4 74970 TP9 Connector Jack White 5A J043 105 0751 001 B 2 74970 TP10 Connector Jack White 5A J043 105 0751 001 D 2...

Page 170: ...6 3014 176 3014 D 4 37338 L3 Inductor Assembly 176 3014 176 3014 D 2 37338 Q1 Transistor Field Effect N Channel Plastic QR52 IRF540N D 3 81483 Q2 Transistor NPN Switch Amplifier QA03 2N2222A B 5 04713...

Page 171: ...apacitor Ceramic 0 01uF 10 100V CCG04 CKR05BX103KRV D 9 56289 C21 Capacitor Ceramic 0 01uF 10 100V CCG04 CKR05BX103KRV D 8 56289 C22 Capacitor Ceramic 0 01uF 10 100V CCG04 CKR05BX103KRV D 8 56289 C23...

Page 172: ...83 Q8 Transistor FET N Channel 100V 8A QR13 IRF520 C 9 81483 Q9 Transistor FET N Channel 100V 8A QR13 IRF520 C 9 81483 Q10 Transistor FET N Channel 100V 8A QR13 IRF520 C 10 81483 Q11 Transistor FET N...

Page 173: ...m 1000 Ohms 1 1 4W RAB25 MF55D1001F B 10 59124 R29 Resistor Metal Film 4750 Ohms 1 1 4W RAB33 MF55D4751F B 9 59124 R30 Resistor Metal Film 1 0M Ohms 1 1 4W RAC13 MF55D1004F A 10 59124 R31 Resistor Met...

Page 174: ...000V CU34 293150B152J00 00853 6 C1 Capacitor Mica Cast 1200pF 5 15000V CU36 293150B122J00 00853 7 C1 Capacitor Mica Cast 1100pF 5 20000V CU37 293200B112J00 00853 8 C1 Capacitor Mica Cast 1000pF 5 2000...

Page 175: ...ch item variation is required for a specific installation USE CODE EXPLANATION Denotes item contains frequency dependent variables 1 Denotes used when carrier frequency c is between 535 610kHz 2 Denot...

Page 176: ...ms 5 2W RBP07 GS 3 100 Ohms B 2 75042 A1R5 Resistor Metal Film 220 Ohms 5 2W RK31 GS 3 220 Ohms B 2 75042 A1R6 Resistor Metal Film 390 Ohms 5 2W RBP33 GS 3 390 Ohms B 2 75042 A1R7 Resistor Metal Film...

Page 177: ...L OEM X Y OEM CODE DES AND DESCRIPTION PART NO PART NO GRID CODE J1 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 J2 Connector Coaxial BNC 50 Bulkhead JDP26 UG1094 U 02660 T1 Transformer Curr...

Page 178: ...Dipped 47pF 1000V CS17 CDV18EF470J03 14655 A10C3 Capacitor Mica Dipped 47pF 1000V CS17 CDV18EF470J03 14655 A10C4 Capacitor Mica Dipped 1500pF 2 500V CB39 CM06FD152G03 14655 A10R1 Resistor Metal Film...

Page 179: ...ctor Detail Assembly RH 183 6022 01 183 6022 01 37338 L4 Inductor Detail Assembly LH 183 6022 02 183 6022 02 37338 L5 Inductor Detail Assembly RH 183 6022 01 183 6022 01 37338 L6 Inductor Detail Assem...

Page 180: ...r to description to determine which item variation is required for a specific installation USE CODE EXPLANATION 1 Denotes used when carrier frequency c is between 535 610kHz 2 Denotes used when carrie...

Page 181: ...R3 Resistor Metal Film 47 Ohms 2 1 2W RC21 RL20S470G 35005 R4 Not Used R4 Resistor Metal Film 56 Ohms 2 1 2W RAP04 RL20S560G 35005 R5 Resistor Metal Film 39 Ohms 2 1 2W RC20 RL20S390G 35005 T1 Transf...

Page 182: ...fier 1A UltraFast QN33 MUR160 04713 CR4 Diode Power Rectifier 1A UltraFast QN33 MUR160 04713 CR5 Diode Power Rectifier 1A UltraFast QN33 MUR160 04713 CR6 Diode Zener 4 7V 1W 5 0 14 QL43 1N4732A 04713...

Page 183: ...5 2W RBP24 GS 3 68K Ohms 75042 A3R2 Resistor Wirewound 33K Ohms 1 5W RN13 RS5 33K Ohms 1 35005 A3RT1 Thermistor PTC 9 600V Trip 0 375A RX18 TR600 150 4G927 A4 Choke Strap Assembly 183 7035 01 183 703...

Page 184: ...00V CCG01 CKR05BX102KRV C 6 56289 C20 Capacitor Tantalum Dipped 10uF 35V CCP36 TAP106K035G D 4 96095 C21 Capacitor Ceramic 0 1uF 10 100V CCG07 CKR06BX104KRV C 7 56289 C22 Capacitor Ceramic 0 1uF 10 10...

Page 185: ...itch Amplifier QA15 2N3904 C 1 04713 Q5 Transistor NPN Switch Amplifier QA15 2N3904 B 5 04713 Q6 Transistor Field Effect N Channel QE19 MPF6661 B 5 04713 Q7 Thyristor Triac 800V 25A QN24 MAC223A10 E 4...

Page 186: ...etal Film 10K Ohms 1 1 4W RAB37 MF55D1002F C 4 59124 R41 Resistor Metal Film 3300 Ohms 2 1 2W RAP11 RL20S332G D 1 35005 R42 Resistor Metal Film 1000 Ohms 1 1 4W RAB25 MF55D1001F C 5 59124 R43 Resistor...

Page 187: ...r PWB Mount Type 3AG FA31 4245 91833 XF5 Fuseholder PWB Mount Type 3AG FA31 4245 91833 XF6 Fuseholder PWB Mount Type 3AG FA31 4245 91833 XF7 Fuseholder PWB Mount Type 3AG FA31 4245 91833 XF8 Fuseholde...

Page 188: ...CR12 Diode General Purpose 400V 1A QE28 1N4004 A 2 04713 CR13 Diode General Purpose 400V 1A QE28 1N4004 B 2 04713 CR14 Diode General Purpose 400V 1A QE28 1N4004 B 2 04713 CR15 Diode General Purpose 40...

Page 189: ...22 Resistor Metal Film 1000 Ohms 1 1 4W RAB25 MF55D1001F B 3 59124 R23 Resistor Metal Film 22 1K Ohms 1 1 4W RAB41 MF55D2212F B 3 59124 R24 Resistor Metal Film 10K Ohms 1 1 4W RAB37 MF55D1002F B 4 591...

Page 190: ...e two state logic inputs outputs which differ from those inputs outputs having only one distinct state or multiple states analog 9 6 1 TYPE OF INPUTS OUTPUTS On electrical schematics names used to des...

Page 191: ...of the transmitter and any of its modules assemblies that are not the subject of their own service instruction manual If the block in the family tree references a manual that is keyed to a Nautel nom...

Page 192: ...ical Schematic Control Monitor Functions Figure SD 6 Electrical Schematic AC DC Power Stage Figure SD 7 Electrical Schematic Remote Interface PWB NAPI25A Figure SD 8 Electrical Schematic Exciter Inter...

Page 193: ...Figure SD 1 Electrical Schematic XL12 12 000 Watt AM Broadcast Transmitter Page SD 1 01 January 2002...

Page 194: ...Figure SD 2 Electrical Schematic Exciter Stage Page SD 2 01 January 2002...

Page 195: ...Figure SD 3 Electrical Schematic RF Drive Stage Page SD 3 01 January 2002...

Page 196: ...Figure SD 4 Electrical Schematic RF Power Stage Page SD 4 01 January 2002...

Page 197: ...Figure SD 5 Electrical Schematic Control Monitor Functions Page SD 5 01 January 2002...

Page 198: ...Figure SD 6 Electrical Schematic AC DC Power Stage Page SD 6 01 January 2002...

Page 199: ...Figure SD 7 Electrical Schematic Remote Interface PWB NAPI25A Page SD 7 01 January 2002...

Page 200: ...Figure SD 8 Electrical Schematic Exciter Interface PWB NAPI22E Page SD 8 01 January 2002...

Page 201: ...Figure SD 9 Electrical Schematic RF Drive Tuning PWB NAPI60 Page SD 9 01 January 2002...

Page 202: ...Figure SD 10 Electrical Schematic Distribution PWB NAPI50B Page SD 10 01 January 2002...

Page 203: ...Figure SD 11 Electrical Schematic DC Power Supply PWB NAPS16C Page SD 11 01 January 2002...

Page 204: ...Figure SD 12 Electrical Schematic DC Power Supply Monitor PWB NAPI48B Page SD 12 01 January 2002...

Page 205: ...Figure SD 13 Electrical Schematic RF Combiner Output Filter NAF101C NAF102 Page SD 13 10 July 2003...

Page 206: ...d CONTENT OF MECHANICAL DRAWINGS 10 2 Mechanical drawings are illustrations that depict the location of electrical components and show assembly outline detail Where appropriate dimensional information...

Page 207: ...il NAPI50B Distribution PWB Figure MD 13 Assembly Detail Fan Tray P N 183 8350 Figure MD 14 Assembly Detail NAF102 RF Output Filter Top View Figure MD 15 Assembly Detail NAF102 RF Output Filter Rear V...

Page 208: ...Figure MD 1 Assembly Detail XL12 12 000 Watt AM Broadcast Transmitter Top and Front Page MD 1 01 January 2002...

Page 209: ...Figure MD 2 Assembly Detail XL12 12 000 Watt AM Broadcast Transmitter Rear and Sides Page MD 2 01 January 2002...

Page 210: ...Figure MD 3 Assembly Detail NAC101 Control Monitor Panel Page MD 3 01 January 2002...

Page 211: ...Figure MD 4 Assembly Detail NAPD07 01 and NAPD07 02 Meter Switch Monitor PWBs Page MD 4 01 January 2002...

Page 212: ...Figure MD 5 Assembly Detail NAPI25A Remote Interface PWB Page MD 5 01 January 2002...

Page 213: ...Figure MD 6 Assembly Detail NAE73A Exciter Panel Page MD 6 01 January 2002...

Page 214: ...Figure MD 7 Assembly Detail NAPI22E Exciter Interface PWB Page MD 7 01 January 2002...

Page 215: ...Figure MD 8 Assembly Detail NAE83 RF Drive Panel Page MD 8 01 January 2002...

Page 216: ...Figure MD 9 Assembly Detail NAAA02 RF Drive Amplifier Page MD 9 01 January 2002...

Page 217: ...Figure MD 10A Assembly Detail NAPI60 01 and NAPI60 02 RF Drive Tuning PWB Page MD 10A 01 January 2002...

Page 218: ...Figure MD 10B Assembly Detail NAPI60 03 and NAPI60 04 RF Drive Tuning PWB Page MD 10B 01 January 2002...

Page 219: ...Figure MD 11 Assembly Detail NAPS10B Regulated Power Supply PWB Page MD 11 01 January 2002...

Page 220: ...Figure MD 12 Assembly Detail NAPI50B Distribution PWB Page MD 12 01 January 2002...

Page 221: ...Figure MD 13 Assembly Detail Fan Tray P N 183 8350 Page MD 13 01 January 2002...

Page 222: ...Figure MD 14 Assembly Detail NAF102 RF Output Filter Top View Page MD 14 01 January 2002...

Page 223: ...Figure MD 15 Assembly Detail NAF102 RF Output Filter Rear View Page MD 15 01 January 2002...

Page 224: ...Figure MD 16 Assembly Detail NAFP90 Forward Reflected Power Probe Page MD 16 01 January 2002...

Page 225: ...Figure MD 17 Assembly Detail NAX161 Static Drain Choke Page MD 17 01 January 2002...

Page 226: ...Figure MD 18 Assembly Detail NAF101 8 Input RF Combiner Filter Rear View Page MD 18 01 January 2002...

Page 227: ...Figure MD 19 Assembly Detail NAF101 8 Input RF Combiner Filter Side View Page MD 19 01 January 2002...

Page 228: ...Figure MD 20 Assembly Detail NAPP02 RF Current Probe PWB Page MD 20 01 January 2002...

Page 229: ...Figure MD 21 Assembly Detail Capacitive Divider Assembly 176 8253 Page MD 21 01 January 2002...

Page 230: ...Figure MD 22 Assembly Detail NAX202 04 Surge Arrestor Assembly DWA00 555 Page MD 22 01 January 2002...

Page 231: ...Figure MD 23 Assembly Detail NASR108 AC DC Power Supply Top View Page MD 23 01 January 2002...

Page 232: ...Figure MD 24 Assembly Detail NASR105 01 Power Transformer Assembly Page MD 24 01 January 2002...

Page 233: ...Figure MD 25 Assembly Detail 3 Rectifier UP28 Page MD 25 01 January 2002...

Page 234: ...Figure MD 26 Assembly Detail NAPS16C DC Power Supply PWB Page MD 26 01 January 2002...

Page 235: ...Figure MD 27 Assembly Detail NAPI48B DC Power Supply Monitor PWB Page MD 27 01 January 2002...

Page 236: ...Figure MD 28 Dimensional Information XL12 12 000 Watt AM Broadcast Transmitter Page MD 28 01 January 2002...

Page 237: ...Figure MD 29 Assembly Dimensional Information NAX165 Circuit Breaker Enclosure Page MD 29 01 January 2002...

Page 238: ...Figure SD 13 Electrical Schematic RF Combiner Output Filter NAF101A NAF102 Page SD 13 01 January 2002...

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