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Page 1: ...amPoweredRadio Com TECHNICAL MANUAL SX 1 AM TRANSMITTER MAINTENANCE MANUAL 994 8581 001 994 8581 003 IJHARRIS T M No 888 2126 028 Copyright HARRIS CORPORATION 1983 All Rights Reserved Printed December 01 1983 ...

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Page 3: ...age 7 60 8 33 8 34 27731 Replaced the following pages Title Page Manual Revision History Page 7 7 7 8 7 9 7 10 7 15 7 16 7 17 7 18 7 28 7 34 7 35 7 36 27738 Replaced the following pages Title Page Manual Revision History Page 8 7 8 8 10 31 83 27770 Replaced the following pages Title Page Manual Revision History Page iv thru xvi 2 6 2 7 2 8 All of Sections IV V and VII Added the following 3 3 3 4 0...

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Page 5: ... 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 references Automatic Fire Detectors No 72E Installation Maintenance and Use of Portable Fire Extinguishers No 10 Haloge...

Page 6: ...THING BEGIN ARTIFICIAL BREATHING TILT HEAD PINCH NOSTRILS MAKE AIRTIGHT SEAL 4 QUICK FULL BREATHS REMEMBER MOUTH TO MOUTH RESUSCITATION MUST BE COMMENC ED AS SOON AS POSSIBLE DEPRESS STERNUM 1 112 TO 2 ONE RESCUER APPROX 15 COMPRESSIONS BO SEC 2 QUICK BREATHS APPRDX 1 rT t O RESCUERS 60 SEC 5 COMPRESSIONS 1 BREATH NOTE DO NOT INTERRUPT RHYTHM OF COMPRESSIONS WHEN SECOND PERSON IS GIVING BREAHI Cal...

Page 7: ...s 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 minu...

Page 8: ...TION IV MAINTENANCE Introduction Station Records Maintenance Logbook Preventive Maintenance Maintenance Of Components Transistors Integrated Circuits Capacitors Fixed Resistors Variable Resistors Fuses Switches Indicators And Indicator Switches Toroids Printed Circuit Boards Air System Using The Keypad And Display Unit Basic Control And Status Status Fault Display Supply Voltage Power Supply Curre...

Page 9: ... Directional Coupler Adjustment Of Phase Angle Detector Output Network Cold Tuning Third Harmonic Trap L7 C4 Bandpass Filter L2 C2 Tee Network Load And Tune L2 Sliding Tap 11 Tap Meter Calibration Procedure Mechanical Zeroing Forward Reflected Power PA Volts PA Amps Power Supply Current Calibration Overload Adjustment Procedures R55 Overvoltage Status Indication 1 R54 Power Supply Current Status I...

Page 10: ...inated All Three Panel Meters Indicate Up Scale Approximately 1 8 And Are Oscillating Position 00 On Keypad Shows 32 64 or 96 Possible Causes Transmitter Grossly Mistuned Or Antenna Problem RF Contactor Or Transmission Line Connector Failure Acorn Arc Gap Above Loading Control Output Tuning Or Loading Control Defective Burnt Or Loose Connections In Output Network Phase Angle Detector Cable Bad Or ...

Page 11: ...111 5 114 5 116 5 118 5 120 Fault Status Indication l Power Supply Voltage 5 10 Supply Voltage Too High 5 10 Overloads Without The High Voltage On 5 10 Fault Status 2 PA Current Overload 5 10 Random Trips With Audio 5 10 PA Current Overl oads At Turn On 5 11 PA Current Overloads Continuous Cycling 5 11 PA Current Overloads Without The High Voltage On 5 11 Fault Status Indication 4 Underdrive 5 11 ...

Page 12: ...Frequency Synthesizer Output Oscillator Frequency Synthesizer To IPA Drive 5 179 5 180 5 181 5 182 5 184 5 187 5 189 5 190 5 196 5 198 5 199 5 218 5 222 5 223 Coax Open Troubleshooting a PA Volts PA Amps Ratio Change 5 225 5 226 5 227 5 228 5 229 viii Passible Causes Impedance Change PA Failure Modulator Failure Open Or Short Modulator Failure Short M odulator Failure Open Probing The Inside Of Th...

Page 13: ...RF AC Controller Switch Board System Controller Board Status and Multimeter Purpose Overview Description Of The Bus Bus Arbitration Logic Read Write Selection A Bus Devices Synthesizer Control Latch U54 Status Input Latch U42 Overload Input Latch U46 PDM Power Latch U47 PDM And Status Latch U48 Analog And Relay Control Latch U49 Status LEDs Latch U53 A Bus Address Decoder U52 MUX And Scaler Data L...

Page 14: ...laceable Parts Service SECTION VIII MAINTENANCE AIDS Introduction APPENDIX A INSTALLATION Introduction Unpacking Returns And Exchanges General Installation Information Setup Procedures General Requirements Equipment Placement Pre Installation Inspection Inspection Mechanical Installation Equipment Positioning Ground Strap Installation Electrical Installation Power Requirements Electrical Installat...

Page 15: ...www SteamPoweredRadio Com TABLE OF CONTENTS Continued Paragraph Page APPENDIX B TEST EQUIPMENT B 1 Introduction B 1 888 2126 026 xi WARNING Disconnect primary power prior to servicing ...

Page 16: ...ators PC Power Panel Controls and Indicators Rear View of Transmitter Showing Interlock Switches Optional Frequency Synthesizer Controls and Indicators Typical Readings Troubleshooting the SX 1 AM Transmitter Listing of Protection Devices in SX 1 Fuses SX 1 Xmtr Analog Signals and Multiplexer Pins Replaceable Parts List Index SX 1 lkW SS AM Xmtr Spare Fuses SX 1 Xmtr SX 1 PA Board Transformer Toro...

Page 17: ...ter Bd PDM Pull Up Board Cable 114 Power Supply Cable Ill SX 1 Main Cable Cable 6 Control Drawer 113 HV Filter Cable 5 Jumpers AC Controller Board 7 50 7 51 7 52 7 54 7 58 7 59 7 60 7 61 7 62 7 63 7 64 7 66 7 67 7 68 7 69 Special Installation Tools and Equipment A 5 Equipment Supplied with Transmitter and Listed on Packing Check List Supplied with Transmitter Customer Interface Connection Points 8...

Page 18: ...f MOSFET PA Transistor Identification J4 on A16 Oscillator 15 volts p p Ql Collector on A25 AC Controller 30 volts p p 50 usec per division Upper Trace A16 Oscillator Board Output at ClO 10 25 volts p p Lower Trace Q2 Collector A16 Oscillator Board before Divide By 4 Upper Trace IPA Input 10 volts per division Lower Trace IPA Transistor Output 20 volts per division PA Transistor Outputs from One Q...

Page 19: ... 2 of 2 Schematic Phase Angle Detector Board Schematic Directional Coupler Board Schematic RFI Board P N 992 5886 003 Schematic RFI Board P N 992 5886 002 Schematic Customer Interface Board Outline SX 1 SX 1 Running Sheets Explanation Sheet Sheet 1 of 11 SX 1 Running Sheets Sheet 2 of 11 SX 1 Running Sheets Sheet 3 of 11 SX 1 Running Sheets Sheet 4 of 11 SX 1 Running Sheets Sheet 5 of 11 SX 1 Runn...

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Page 21: ...ion d SECTION IV MAINTENANCE provides preventive and corrective main tenance as well as alignment procedures e SECTION V TROUBLESHOOTING provides a listing of the protection devices in the transmitter as well as low power and high power troubleshooting procedures f SECTION VI PRINCIPLES OF OPERATION provides detailed theory of operation of the various sections of the transmitter g SECTION VII PART...

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Page 23: ...gures and or tables supplied in this section of the technical manual Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 2 11 Figure 2 12 Figure 2 13 Figure 2 14 Figure 2 15 Table 2 16 Oscillator Board A16 System Controller Board Al3 Status and Multimeter Board A12 System Controller Board Al4 PDM Generator Board Al5 Base of SX 1 PDM...

Page 24: ...www SteamPoweredRadio Com _ __ 2126 lA Figure 2 1 Oscillator Board A16 Controls and Indicators 2 2 888 2126 024 WARNING Disconnect primary power prior to servicing ...

Page 25: ... frequency approx imately 20 Hz Protects 30 volt supply from faults within the oscillator Adjusts the oscillator output drive level Output for optional Frequency Monitor Counter e g HARRIS AF 80 or equiva lent Used to select onboard crystal oscil lator as frequency source jumper 1 3 or external source jumper 1 2 Input for external frequency source e g AM Stereo Exciter Combiner Common Drive Nomina...

Page 26: ...www SteamPoweredRadio Com Figure 2 2 System Con t roller Boar d Al3 Contro ls and Indicators 2 4 888 2126 001 WARNING Disconnect primary power orior to servicino ...

Page 27: ... S1 causes Controller to perform power fail restart This pushbutton should be depressed if RED LED comes on Controller Status Glows GREEN to indicate Controller Indicator GO functioning normally Al3DS1 Controller Status Glows RED to indicate Controller Indicator NO GO malfunction Al3DS2 888 2126 001 2 5 WARNING Disconnect primary power prior to servicing ...

Page 28: ...www SteamPoweredRadio Com 2126 3A Figure 2 3 Status and Multimeter Board A12 Controls and Indicators 2 6 888 2126 026 WARNING Disconnect primary power prior to serv icing ...

Page 29: ...justing R56 counterclockwise in creases sensitivity of RF Drive Level Overload Adjusting R57 clockwise decreases sensitivity of Final Power Amplifier Peak Current Overload Adjusting R57 counterclockwise increases sensitivity of Final Power Amplifier Peak Current Overload Adjusting R58 clockwise increases sensitivity of RF Drive Level Minimum Amplitude Overload Adjusting R58 counterclockwise decrea...

Page 30: ...ockwise decreases sensitivity of VSWR Overload Ad justing R51 counterclockwise increases sensitivity of VSWR Overload Adjusting R53 clockwise decreases sensitivity of PA Module Overload Adjusting R53 counterclockwise in creases sensitivity of PA Module Over load Adjusting R54 clockwise decreases sensitivity of 260 VDC Power Supply Current Overload Adjusting R54 counterclockwise increases sensitivi...

Page 31: ...www SteamPoweredRadio Com THIS PAGE LEFT BLANK INTENTIONALLY 888 2126 001 2 9 WARNING Disconnect primary power prior to servicing ...

Page 32: ...www SteamPoweredRadio Com 2126 4 Figure 2 4 System Controller Board Al4 Controls and Indicators 2 10 888 2126 001 WARNING Disconnect primary power prior to servic ing ...

Page 33: ...g Sl causes Controller to perform power fail restart This pushbutton should be pushed if RED LED comes on Controller Status Indicator GO A14DS1 Controller Status Indicator NO GO A14DS2 Glows GREEN to indicate Controller functioning normally Glows RED malfunction 888 2126 001 to indicate Controller 2 11 WARNING Disconnect primary power prior to servicing ...

Page 34: ...TER 240 kHz OSCILLATOR Ull OUTPUT COMPARATORS U9 UlO 3 Ul2 OPERATIONAL AMPLIFIER HUM AND CARRIER SJ IFT CANCELLING U6 CIRRENT MIRROR U7 U8 OUTPUT CONNECTOR J4 aize 5 Figure 2 5 PDM Generator Board Al5 Controls and Indicators 2 12 888 2126 001 WARNING Disconnect primary power prior to servicing ...

Page 35: ...di tion s Amp fuse JAG used to protect 30 volt supply from over current condi tion Selects type of frequency response transmitter will have Best loudness will be obtai ned in BESSEL position while flatter frequency response will be obtained in FLAT position With multimeter position 44 reading 999 adjust for maximum desired out put power from transmitter With multimeter position 44 reading 000 adju...

Page 36: ...AMPLE MOUNTED A20 RS AND CR2 lOV REMOTE OUTPUT SUPPLY BEHIND AC POWER PANEL IN SOME UNITS 4 Al9 R4 POWER SUPPLY CURRENT METERING SHUNT Al Cl C2 A20 CRl 30V FILTER 3ov SUPPLY CAPACITORS RECTIFIER Figure 2 6 Base of SX 1 Controls and Indicators 2 14 888 2126 001 WARNING Disconnect primary power prior to servicing ...

Page 37: ... A20R4 FUNCTION Main Power Supply transformer for 260 volt de supply Secondary Power Supply transformer for 30VDC 30VDC and 24 VAC 2 Amp fuse Slo Blo used to protect external interlock circuits from acci dental grounding If fuse is blown transmitter will not return to air Adjust s the supply voltage for the IPA FACTORY PRESET DO NOT ADJUST 888 2126 001 2 15 WARNING Disconnect primary power prio r ...

Page 38: ...ARISTOR RVl HIGH VOLTAGE DISCHARGE SWITCH 2 3 Al9 CS Al9 Cl DAMPER CAPACITOR POWER FILTER Al9 A4 Al9 R2 AND R3 HIGH VOLTAGE FAST DISCHARGE CIRCUIT 2126 7 Figure 2 7 PDM Amplifier Boards A6 and A7 Controls and Indicators 2 16 888 2126 001 WARNING Disconnect primary power prior to servicing ...

Page 39: ...the PDM Amplifier from over Al0Fl B current surges 3 PDM Amplifier Fuse Protects the PDM Amplifier from over A10F2 A current surges 4 PDM Amplifier Fuse Protects the PDM Amplifier from over A10F2 B current surges 5 A6Fl Protects 30 volt supply from over current surges on PDM Amp Board A6 6 A7Fl Protects 30 volt supply from over current surges on PDM Amp Board A7 888 2126 001 2 17 WARNING Disconnec...

Page 40: ...w SteamPoweredRadio Com Al0 Fl A Fl B F2 A AND F2 B PDM AMPLIFIER A6 2 12 1 Figure 2 8 PDM Filter Board Al0 Cont rols and Indicators 2 18 888 2126 001 WARN ING Disconnect p rimary power prior to servicing ...

Page 41: ... CONTROL INDICATOR Interlock Switch Al9S3 FUNCTION Rear Door control interlock When Al9S3 is disengaged ground is removed from return leads of main contactors thus preventing unwanted energizlng of 260 volt power supply 888 2126 001 2 19 WARNING Discunnect primary power prior to ervicing ...

Page 42: ...om R2 LJ RZ Z C J z tO 5 R I CRZ 2 51 I t 1 Ji _J V V 0 A CONTROLL ER c iq z S880 002 8 3 l655 200 R I A Figure 2 9 AC Controller Board A25 Controls and Indicators 2 20 888 2126 014 WARNING Disconnect primary power prior to servicing 2126 9A ...

Page 43: ... Blo fuse used to protect the Solid State relays from supply over current conditions 3 Amp Fast fuse used to protect the 5 volt power supply from accidental over current conditions Used to adjust electrical zero of PA Current meter Used to adjust the calibration of the PA Current digital reading position 05 Used to adjust the electrical zero of PA voltmeter Used to adjust the calibration of 260 vo...

Page 44: ...ITOR SAMPLE CUSTOMER INTERFACE BOARD IPA TUNING CAPACITOR A26 Cl IPA MODULE 2126 10 Figure 2 10 IPA Board AS and lPA Power Splitter Board A26Al Controls and Indicators 2 22 888 2126 001 WARN ING Disconnect p r imary power prior to oervicing ...

Page 45: ...OL INDICATOR FUNCTION 1 2 3 IPA Tuning A26Ll 30V Fuse A5Pl2 30V Fuse A5Fll Used to adjust match between IPA and input of PA Module Protects 30V supply from over current conditions on the IPA Protects 30V supply from over current conditions on the IPA 888 2126 001 2 23 WARNING Disconnect primary power prior to servicing ...

Page 46: ...o Com RF DRIVE RF DRIVE INPUT B CHOKES B 260V BYPASS CAPACITORS 2126 1 Figure 2 11 PA Boar d Al Controls and Indicators 2 24 888 2126 001 WARNING D isconnec t prim a ry power prior to s ervicing QUAD 4 QUAD 3 QUAD 2 QUAD 1 ...

Page 47: ...RECTIFIER TYPE FUSES ESPECIALLY DESIGNED TO PROTECT RECTIFIERS AND TRANSISTORS USE OF REGULAR GLASS FUSES DEFEATS THE PROTEC TION AND CAN RESULT IN DESTRUCTION OF THE GLASS CASE POSSIBLY RESULTING IN PERSONNEL INJURY FROM FLYING GLASS OR FROM GLASS PARTICLES THROWN INTO THE TRANSMITTER INTERIOR THE RECTIFIER TYPE FUSE IS FASTER ACTING THAN THE REGULAR FAST ACTING FUSES AND SO IS USED TO PREVENT CA...

Page 48: ...dio Com STEP START RESISTOR Al9Rl 2 I 2 l 2 Figure 2 12 AC Power Panel Controls and I ndicators To p View With Power Panel Removed From Transmitter 2 26 888 2126 001 WARNING Disconnect primary power p r ior to servic ing ...

Page 49: ...l Circuit Breaker CBl Lamp DS2 Relay Kl DSl will illuminate when power is applied to the low voltage circuitry 10 Amp circuit breaker to protect the low voltage power supply from an over current condition DS2 will illuminate when power is applied from the Main Disconnect Switch i e cabinet is receiving ac power Relay Kl is used to apply ac mains directly to the high voltage transformer 888 2126 00...

Page 50: ...www SteamPoweredRadio Com Figure 2 13 AC Power Panel Controls and Indicators Front View 2 28 888 2126 001 WARNING Disconnect primary power prior to servicing 2126 34 ...

Page 51: ...UNCTION When illuminated indicates main ac power is applied to transmitter When set to ON position applies ac power to low voltage transmitter power supplies Provides low voltage power lines with over current protection When illuminated indicates ac power supplied to low voltage circuits in transmitter 888 2126 001 2 29 WARNING Disconnect primary power prior to ervicing ...

Page 52: ...www SteamPoweredRadio Com Figure 2 14 Rear View of Transmitter Showing Interlock Switches 2 30 888 2126 014 WARNING Disconnect primary power prior to servicing 2126 35A ...

Page 53: ...this switch will interrupt the control voltage to the primary contactors allowing them to deenergize When rear door is partially opened this switch will discharge the energy storage capacitors through large resistors for current limiting When rear door is fully switch will short the directly to ground opened this power supply Protects 260 V supply from faults on the PA module 888 2126 014 2 31 WAR...

Page 54: ...www SteamPoweredRadio Com 2 3 6 2126 32 Fi gure 2 15 Optional Frequency Synthesizer Controls and Indicators 2 32 888 2126 001 WARNING Disconnect primary power prior to servicing ...

Page 55: ...re quency Synthesizer connect P2 between 1 and 3 To select the RF source from the external input Jl connect P2 be tween 1 and 2 This fuse protects the 30 volt wiring for the entire board 2A fuse To select which choke is used in the VCO circuit close the following switch only one 525 800 kHz S3 801 1175 kHz S2 1176 1605 kHz Sl This potentiometer adjusts the DC volt age supplied to the output transi...

Page 56: ... A5 Temp 16 PDM A6 Temp 17 PDM A7 Temp 20 Phase Det 21 PA Al Fuses 25 IPA A5 Fuses 26 PDM A6 Output 27 PDM A7 Output 41 Low Pwr Set 42 Med Pwr Set 43 High Pwr Set 44 Current Pwr 50 5 Volts 51 15 Volts 52 Ref Volts 88 Lamp Test MED PWR 100 Mod 67 8 4 540 0 Reading 1100 Watts Carrier 249 5 9 120 0 12 0 105 100 52 32 37 37 0 14 119 119 15 15 448 250 Watts 639 500 Watts 938 1100 Watts 938 5 25 15 44 1...

Page 57: ... directional coupler within the transmitter will detect this ef fort to change the load impedance and will cause the transmitter to remove itself from the air If a change in antenna impedance causes the reflected power to increase a thorough investigation should be made of all equipment connected between the transmitter and the antenna If there are shorted open capacitors or inductors in the anten...

Page 58: ...erated One of these items is the step start resistor s Should a step start resistor fail in the open mode the inrush current into the transmitter will increase dramatically This can cause premature tripping of circuit breakers in the primary service to the transmitter but will not damage the transmitter itself 3 13 If a rectifier should fail the transmitter can not be operated by simply removing t...

Page 59: ... s green LED does not illuminate then assume that this board has failed 3 19 Remove all power from the transmitter and disconnect the long blue ribbon connector from the failed board 3 20 Reapply power and the transmitter should return to normal operation on the single System Controller board 3 21 Have the defective board replaced or repaired as soon as possible It is possible for a System Control...

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Page 61: ...OGBOOK 4 6 The maintenance logbook should contain a complete description of all maintenance activities required to keep the equipment in operational status A listing of maintenance information to be recorded and analyzed to provide a data base for a failure reporting system is as follows DISCREPANCY CORRECTIVE ACTION DEFECTIVE PART S SYSTEM ELAPSED TIME Nil ME OF REPAIRMAN STATION ENGINEER Describ...

Page 62: ...ack of proper ventilation or the existence of some defect can be detected and corrected before serious trouble occurs Become familiar with operating temperatures in order to recognize deviations from the normal range c TIGHTEN Tighten loose screws bolts and nuts Do not tighten indiscriminately as fittings that are tightened beyond the pres sure for which they are designed may be damaged or broken ...

Page 63: ... TRANSISTORS IN THE IPA REQUIRE CHANGING ENSURE THAT ALL OF THE TRAN SISTORS ARE OF THE SAME TYPE NUMBER AND ARE FROM THE SAME MANUFACTURER 4 12 INTEGRATED CIRCUITS Preventive maintenance of integrated circuits is accomplished by performing the following steps USE CARE TO AVOID THE BUILDUP OF STATIC ELECTRICITY WHEN WORKING AROUND INTE GRATED CIRCUITS a Inspect the integrated circuits and surround...

Page 64: ...esponds to the component designated by the schematic diagram and parts list c Clean dirty resistors with a small brush 4 15 VARIABLE RESISTORS Preventive maintenance of variable resistors is __ accomplished by performing the following steps a Inspect the variable resistors and tighten all loose mountings connections and control knob setscrews do not disturb knob alignment Sliding taps on adjustabl...

Page 65: ...cks Do not disassemble switches c Inspect accessible contact switches for dirt corrosion or looseness of mountings or connections d Check contacts for pitting corrosion or wear e Operate the switches to determine if they move freely and are positive in action f Tighten all loose connections and mountings g Be sure to include an inspection of the power supply discharge switches located at the botto...

Page 66: ...e This will allow a complete visual inspection 4 21 PRINTED CIRCUIT BOARDS Preventive maintenance of printed circuit boards is accomplished by performing the following steps a Inspect the printed circuit boards for cracks or breaks b Inspect the wiring for open circuits or raised foil c Check components for breakage or discoloration due to overheating d Clean off dust and dirt with a clean dry lin...

Page 67: ... for faults which may still exist When 99 is depressed for example the upper display will go blank when the is depressed and then when depressing each 9 the number will be echoed in the upper display area When the digit 9 has been depres sed two times the display will change back to 00 and the next line on the display will indicate any faults which still exist If faults other than RF DRIVE LEVEL a...

Page 68: ...4 VOLTS STORED IPA DRIVE LEVEL STORED PHASE ANGLE DETECTOR VOLTAGE TEST ROUTINES FORMAT 9 99 99 99 99 99 999 99 9 999 999 99 9 999 999 999 999 999 9 99 11 12 13 14 15 16 17 18 IPA TEMP 999 999 999 999 999 999 999 999 999 88 95 99 LAMP TEST COMMANDS 8 8 8 8 8 19 20 PHASE 2 TEMP PHASE 1 TEMP PHASE 4 TEMP PHASE 3 TEMP PHASE ANGLE DETECTOR OUTPUT FAULT STATUS PER MODULE 21 Al FUSE FINDER 22 A2 FUSE FI...

Page 69: ...qual to 1 1 or a perfect match In practice it may be impossible to hold the VSWR at 1 1 but this chart shows the purpose of the positions 03 and 04 and the interaction of the LOADING and TUNING controls in minimizing VSWR at the PA The VSWR overloads are adjusted to trip at or below 1 5 1 VSWR at full output power However since only the reflected voltage is capable of causing an overload the trans...

Page 70: ...the fuses should be checked for failure The following paragraphs will discuss how to check a fuse on the IPA and PA modules 4 35 FUSE FINDER The blown fuse detectors are operated by current flowing through a resistor and LED circuit instead of flowing through the fuse which is blown This allows the LED contained within an optoisolator to operate a transistor whose output is fed into the Status and...

Page 71: ...y the temperature of the IPA in degrees Centi grade This feature can be used to determine if a module has malfunctioned by noting the temperature of each module when the transmitter is operating properly and then watching for significant increases in a particular module The following modules have temperature sensors installed POSITION 11 Al POWER AMPLIFIER SX 1 SX 2 5 SX 5 POSITION 12 A2 POWER AMP...

Page 72: ...er range at the touch of a pushbutton The power levels for LOW MEDIUM and HIGH are adjustable independently and the audio input level tracks the power output level within 2 from 10 to 100 of full power so no adjustment of the audio processing gear need be made when changing power levels This feature should simplify procedures at stations where more than one power level is required through the broa...

Page 73: ... 50 Now depress the HIGH pushbutton to bring the transmitter on the air at full power While the transmitter is coming on the air observe that the lower display changed to 000 and then quickly increased to be equal to the upper display The raise pushbutton also was illuminated during this time to indicate that the power was being raised Depress the MEDIUM pushbutton and observe the change in positi...

Page 74: ...r supply reads less that 4 75 volts or more than 5 50 volts then the 5 volt power supply has failed somehow and the AC Controller board should be repaired or replaced The 15 volt power supply is also contained on the AC Controller board and if the 15 drops below 13 5 volts or increases to more that 17 0 volts the AC Controller should be rfpaired or replaced 4 54 TESTING THE DISPLAY SEGMENTS Positi...

Page 75: ... an even coating of thermal com pound is applied to the mating heat sink surfaces Be certain to tighten down the captive fasteners which mount the PA module to the heat sink Be sure the RF drive cable J2 is fully locked into position 4 65 PDM AMPLIFIERS 4 66 Check jumper plug P4 next to the Molex connector J2 to ensure it is in the correct position for transmitter SX 1 SX 2 5 SX 5 4 67 With only t...

Page 76: ...able IPA ringing and a slight loss in IPA efficiency Excessive output from the Oscillator board will result in overworking of the Al6 output stage DO NOT ADJUST Al6R27 VOLTAGE ON THIS MAY IF THE IPA OSCILLATES JUSTMENT PROCEDURE 4 77 PDM GENERATOR Al5 WITH THE HIGH ENDANGER THE PA DURING THE AD 4 78 If the PDM Generator is being replaced with a new one very little adjustment should be necessary If...

Page 77: ... Status and Multi meter board Al2 This is the cable that supplies 5 volts to Al2 Discon necting P14 will take the load off of the 5 volt supply 4 88 Connect a de voltmeter between Pl4 3 wire 63 and ground IN THE FOLLOWING STEPS ONLY MOMENTARILY SET THE LOW VOLTAGE CIRCUIT BREAKER TO ON TO MINIMIZE THE POSSIBILITY OF DAMAGING THE 5 VOLT FILTER COMPONENTS ON THE AC CONTROLLER BOARD NEVER LEAVE THE L...

Page 78: ...ration procedures beginning with the paragraph entitled METER CALIBRATION PROCEDURE 4 94 In general readjustment should be made whenever a component which may affect meter calibration is replaced 4 95 STATUS AND MULTIMETER BOARD Al2 4 96 Replacement of the Status and Multimeter board may be accomplished faster and smoother if the calibration and overload potentiometers are pre set using a volt ohm...

Page 79: ...resistance between the following connector pin numbers These will determine the meter calibration potenti ometer settings of the new board Read the resistance as critically as possible 4 104 All of the ribbon connectors have odd numbered pins on one side and even numbered pins on the other side Look at one of the ribbon cables There should be an arrow in one corner on the outside The arrow denotes...

Page 80: ...n the old board 4 111 Once this is completed bring the transmitter power up to the normal power level Display 144 and use the RAISE LOWER pushbuttons to make the displayed number the same as recorded previously Let the transmitter stabilize for approximately five minutes The PA VOLTS PA CURRENT and FORWARD POWER should be equal to the readings first recorded 4 112 If the meter readings appear ques...

Page 81: ...isplay will be blanked If an error is detected while entering the frequency simply repeat the procedure To exit the frequency entry mode simply enter any other key code i e 45 NOTE 4 digits are required to set the fre quency e g 610 kHz is entered as 950610 4 117 To check the frequency that is programmed into the Frequency Synthesizer use the key code 45 to view the frequency and the status of the...

Page 82: ...isappear 4 124 Depress the RAISE pushbutton until a very narrow pulse appears A very narrow pulse will not reach 15 volts p p 4 125 Move the oscilloscope probe to the side of R45 nearest the printed circuit board edge Adjust R14 until a very narrow pulse as in the pre ceeding step is observed should be of the same amplitude 4 126 Rotate R28 several turns counterclockwise 4 127 Turn the transmitter...

Page 83: ...itter is properly adjusted and only the Directional Coupler needs adjustment If other portions of the Output Network need adjustment see the section on Output Network adjustment first before beginning with this procedure Ensure that the transmitter is connected to a 50 ohm dummy load WARNING I ENSURE ALL POWER IS REMOVED FROM TRANS MITTER AND THAT GROUNDING STICK HAS BEEN USED TO DISCHARGE ANY RES...

Page 84: ... and wait for power to decrease to zero ATTEMPTING STEP 1 WITH THE TRANSMITTER ON MAY RESULT IN DAMAGE TO THE DIREC TIONAL COUPLER BECAUSE AN ARC MAY DEVELOP WHEN THE PLUGS ARE REMOVED 1 Note which way plugs P2 and P3 are installed in the Directional Coupler These plugs can be reached through a hole in the top of the cabinet on the right side near the rear Notice that the plugs are connected side ...

Page 85: ...er to decrease to zero This will take longer that normal due to the effects of the VSWR protection and is normal ATTEMPTING STEP r WITH THE TRANSMITTER ON MAY RESULT IN DAMAGE TO THE DIREC TIONAL COUPLER BECAUSE AN ARC MAY DEVELOP WHEN THE PLUGS ARE REMOVED r Reconnect the plugs on the Directional Coupler the way they were before step 1 s Turn the transmitter back on at full power t Adjust R62 on ...

Page 86: ... which BNC connector b Connect an RF signal generator tuned to the carrier frequency of the transmitter and adjusted for a level between 1 and 10 volts RMS to JZ and connect an RF voltmeter to Jl c Adjust CZ middle capacitor until the voltage measured on Jl is a minimum At this point there is no further adjustment of CZ required d Reconnect Jl and J2 to the same BNC connectors as in step a and clo...

Page 87: ...ment is complete 4 138 OUTPUT NETWORK COLD TUNING 4 139 The Output Network should require retuning only if a component is replaced If this occurs ensure that the following caution note is followed THE RESONANT FREQUENCY OF L2 C2 MUST BE MEASURED ONLY WHEN THE REAR DOOR IS CLOSED A FREQUENCY SHIFT OF APPROXI MATELY 4 KHZ WILL BE NOTED WHEN THE DOOR IS OPEN WARNING I ENSURE ALL VOLTAGE HAS BEEN REMO...

Page 88: ...R L2 C2 Disconnect the strap which connects to the input side towards rear of transmitter of the Directional Coupler 4 145 Disconnect the strap which connects to the feedthrough bolt on the enclosure containing A21Ll and A21Cl 4 146 Connect an RF bridge vector impedance meter or any suitable impedance measuring device between the strap which was disconnected from the Directional Coupler and ground...

Page 89: ...ter Access to the mechanical zero adjustments may be gained by removing the dress panel Be sure to plug J4 back in after checking the mechanical zero of the meters 4 158 FORWARD REFLECTED POWER Calibrati on of the power output meter is covered in paragraph on ADJUSTMENT OF DIRECTIONAL COUPLER 4 159 PA VOLTS Turn the transmitter on at low power and lower the power setting or 44 to 000 Turn transmit...

Page 90: ...rawer out and routing the wiring through the holes located in the upper right hand side of the drawer enclosure which allow access into the main enclosure 4 166 The voltmeter leads may have to be extended in order to reach the appropriate connections 4 167 Connect the positive lead of an accurate DC Voltmeter to the B 260V connection on the PA Module Al the large red plug J3 4 168 Connect the nega...

Page 91: ...ent shunt A19R5 4 176 After correct electrical zeroing of the PA AMPS meter is achieved turn the transmitter off and open the back door WARNING I ENSURE ALL POWER IS REMOVED FROM THE TRANSMITTER BEFORE ATTEMPTING TO ROUTE THE LEADS IN THE FOLLOWING STEPS 4 177 Locate a DC Ammeter where it can be seen from front of transmitter and route its leads through one of the bottom side access holes and up t...

Page 92: ... Once the digital reading agrees with the external DC Ammeter R60 on the Status and Multimeter board Al2 should be adjusted to make the front panel PA AMPS meter read correctly WARNING I ENSURE ALL POWER IS REMOVED FROM THE TRANSMITTER BEFORE ATTEMPTING TO REMOVE THE LEADS IN THE FOLLOWING STEPS 4 185 Remove all power from transmitter and remove external DC Ammeter s leads from cabinet 4 186 POWER...

Page 93: ...ER FROM THE TRANSMITTER BEFORE ATTEMPTING ACCESS 4 191 If the digital reading does not agree with the reading on the exter nal DC Ammeter it will be necessary to adjust R23 on the AC Controller board A25 Due to the limited access of the AC Controller board all power will have to be removed from the transmitter before making the adjustment Adjust R23 slightly and then recheck the calibration 4 192 ...

Page 94: ...ill allow the supply voltage to increase due to the absence of a load on the supply 4 199 Rotate R55 counterclockwise until the transmitter trips off and displays the fault condition Rotate R55 one and one half turns clockwise from this point 4 200 R54 POWER SUPPLY CURRENT STATUS INDICATION 16 AND R57 PA CURRENT STATUS INDICATION 2 NOTE R54 and R57 overload adjustments need to be set so that R57 P...

Page 95: ...ter is pro ducing full power 4 207 R 58 UNDERDRIVE STATUS INDICATION 4 4 208 Before adjusting the underdrive threshold verify the rf drive on the PA module to be within normal limits Refer to the IPA tuning procedure for specific information on checking the drive level 4 209 Modulate the transmitter to 100 with 400 Hz at 110 power output 1100 watts for SX 1 2750 watts for SX 2 5 and 5500 watts for...

Page 96: ...ower level set in the previous paragraph Forward power will now read zero and reflected power will be the same as set in the previous paragraph Adjust R51 counterclockwise to the point where the sensing circuit operates Adjust R51 one third of a turn clockwise from the point where the sensing circuit operated WARNING I ENSURE THAT THE POWER OUTPUT IS ALL THE WAY DOWN BEFORE CHANGING THE POSITION O...

Page 97: ...OCEEDING WITH THE FOLLOWING STEPS 4 225 With the high voltage and the low voltage off connect an oscillo scope across Rl3 on the PA module Al If Rl3 is not used place the probe on the appropriate standoff The ground lead of the oscilloscope should connect to the side of Rl3 away from the copper heatsink 4 226 imately Qll and modules range Set the low voltage circuit breaker to ON There should be a...

Page 98: ...to the inside Q12 or Ql3 A 30 to 60 volt p p rf square wave with ringing should be present on both Ql2 and Q13 4 233 Adjust R27 on A16 the RF Oscillator and observe the IPA waveform on the oscilloscope As the drive to the IPA is decreased ringing will decrease Eventually the IPA transistors will stop operating in class D switching mode and will possibly oscillate 4 234 Adjust A16R27 so that the IP...

Page 99: ... the BNC connector is primarily dependent on the fixed capacitors that are installed in the RFI board next to the trimmer capacitors These capacitors are normally factory selected for customer operating power levels but the switches associated with the capacitors allow customer selection of which capacitors will be in circuit The trimmer capacitors C40 thru C43 allow fine adjustment of the modulat...

Page 100: ...ove and fold strap back into Cl compartment 4 253 Mark position of clip on L7 and then remove clip and fold back near LS 4 254 Remove 10 32 Phillips head screw from C3 connector strap that goes to 14 4 255 Remove BNC coax connector on J2 cable A27AlP2 4 256 Remove the two 6 32 screws holding Directional Coupler shield to side panel bracket near left side of L2 looking in from back of cabinet see f...

Page 101: ...BLY AS VIEWED FROM REAR AGAINST CABINET SIDE WHEN LOWERING TOP ASSEMBLY INTO CABINET 4 265 TECHNICAL ASSISTANCE 4 266 HARRIS Technical and Troubleshooting assistance is available from HARRIS Field Service during normal business hours 8 00 a m 5 00 p m Central Standard Time Emergency service is available 24 hours a day Telephone 217 222 8200 to contact the Field Service Department or address corres...

Page 102: ...www SteamPoweredRadio Com 2126 13 Figure 4 1 View Showing Ll Cover 4 42 888 2126 026 WARNING Disconnect primary power p rior to servicing ...

Page 103: ...TWO DIRECTIONAL COUPLER COVER SCREWS THAT ARE TO BE REMOVED DO NOT REMOVE SCREWS THAT ATTACH TO SIDE WALL Figure 4 2 Directional Coupler Cover Screws 888 2126 026 WARNING Disconnect primary power prior to se rvicing 2126 14 4 43 ...

Page 104: ... SteamPoweredRadio Com 4 44 DIRECTIONAL COUPLER SWITCH ACCESS SPARK GAP ADJUSTMENT LIFTING HANDLES Fj3ure 4 3 Top of SX 1 888 2126 026 RF OUTPUT WARNING Disconnect primary power prior to servicing 2126 15 ...

Page 105: ...r Fault Light Illuminated Raise Light Illuminated All Three Panel Meters Indicate Up Scale Approximately 1 8 and are Oscillating 5 5 Symptom Transmitter May or May Not be Able to Be Turned On The Digital Display May be Garbled The Transmitter May Want to Perform An ON Function by Itself 5 6 Symptom Transmitter Operates Normally but all Digital Display Voltages Read Incorrectly 5 6 Symptom Transmit...

Page 106: ...rs In Circuit Ohmmetering the PDM Amp A6 and A7 MOSFETs In Circuit Ohmmetering the PA Al Transistors Ohmmeter Testing The IPA Troubleshooting the RF Oscillator Symptom No Output Troubleshooting the Frequency Synthesizer Symptom No Output At J2 Pin 6 Symptom Improper Output Frequency Loss of Lock Troubleshooting The RF Drive System Symptom Underdrive Overload W i ll Not Allow Transmitter To Come On...

Page 107: ...r Output From The Transmitter 5 37 Symptom Symptom Imbalance In Output Pulse Widths Output s At J4 Always In A High State Causing One Or More PDM Amplifiers To C nduct Full Time Troubleshooting High Temperature Readings Waveforms provided in Figure 5 3 through 5 15 Listing of Protection Devices in Table 5 2 Fuse List for SX 1 in Table 5 3 888 2126 026 WARNING Disconnect primary power prior to serv...

Page 108: ...he schematic of the AC Controller board if troubleshooting is necessary 5 10 System Controller Locked Out Inspect both System Controller boards __ in the pull out drawer Check to see if the green or red LED s are illumi nated Red signifies a System Controller is locked out Attempt to reset them by depressing the RESET switch in the middle of each board 5 11 Loose Ribbon Connectors Make sure all ri...

Page 109: ...e transformer 5 21 AC Voltages On A25 Connect an AC voltmeter to Fl on the AC Control ler board 24 VAC should be present if the low voltage is on A20Fl is good and a closure is provided between A23TB1 14 and 18 5 22 If any of the ON pushbuttons LOW MEDIUM or HIGH are depressed 24 VAC should appear momentarily at J2 6 on A25 It will not be necessary to close the door for this test 5 23 Open Contact...

Page 110: ...n 3 Check for 15V on Jl3 Molex pins Check for 15V on Jl3 Molex pins 2 and 3 supply boards 1 and 4 5 38 Ribbon Cable Connections Ensure that all ribbon cable connectors are locked into their proper socket and are tight Check the connectors on the Status and Multimeter System Controllers and RFI boards 5 39 System Controller Board Turn off transmitter low voltage and dis connect the large ribbon con...

Page 111: ... displayed which may be found under Possible Causes for Overloads 5 51 If no fault status is indicated check for intermittent interlock wire or switch 5 52 Possible dirty contacts on Kl and or K2 which supply control signals to the System Controller 5 53 Open step start resistor 5 54 SYMPTOM TRANSMITTER STAYS ON CONTACTORS ENERGIZED BUT NO POWER OUTPUT AND HIGH VOLTAGE SUPPLY MAY OR MAY NOT BE ON ...

Page 112: ... those inputs with defective optical isolators Ohmmeter test the input side of A12U2 U3 and U4 at the Customer Interface board They should test as diodes Otherwise measure across each optical isolator input on Al2 to see if a voltage is being applied as the remote control circuits are activated 5 64 TROUBLESHOOTING A 5 VOLT SUPPLY FAILURE 5 65 Loss of the 5 volt supply will result in the almost as...

Page 113: ...ts but in this case may be 30 volts 5 71 If the voltage at P14 3 is normal 6 volts there is probably no fault with the 5 volt supply The fault is more likely with the 5 volt com ponents on the Status and Multimeter board or one of the System Controller boards Plug Pl4 back in and see if the digital display stays illuminated 5 72 If the voltage at Pl4 3 is about 30 volts Ql on the AC Controller boa...

Page 114: ...ay It should be zero If this function shows a voltage possibly higher than a normal operating parameter suspect Ul on A25 the AC Controller board 5 82 If 01 shows a zero indication it is likely there is a fault on the Status and Multimeter board Al2 The fault may be with U44 or U46 on Al2 5 83 FAULT STATUS 2 PA CURRENT OVERLOAD 5 84 RANDOM TRIPS WITH AUDIO PA current overloads may be caused by ove...

Page 115: ...ow drive could be caused by mistuning of the IPA abnormally low IPA supply voltage or certain failed components in the IPA section 5 91 If the rf drive system is normal there may be a faulty component on the Status and Multimeter board Al2 Follow the overload adjustment proce dure to check the sensitivity of the overload If the rf drive level is normal but the overload condition will not clear che...

Page 116: ...E GROUNDING STICK IS USED TO REMOVE ANY RESIDUAL VOLTAGE THAT MAY BE PRESENT BEFORE THE FOLLOWING STEPS ARE PERFORMED NEVER OPERATE THE TRANSMITTER WITHOUT THE DAMPER CIRCUIT COMPLETE THE VOLT AGES IN THE PDM CIRCUITRY WILL RISE TO A DESTRUCTIVE LEVEL WITHOUT THE COM PLETE DAMPER CIRCUITRY 5 98 If supply current soars as the pulse width is brought up check the damper diodes A6 and A7 CRl This may ...

Page 117: ... a fall time of 66 nsec is typical 5 105 FAULT STATUS INDICATION 32 VSWR DIRECTIONAL COUPLER REFLECTED SAMPLE 5 106 TRIPS OCCUR WITH HIGH LEVELS OF MODULATION AND HIGH POWER If this problem is encountered in the first hours of operation there may be a set up problem Refer to the initial turn on procedure and maintenance section where PA tuning and PA loading are described 5 107 Check the reflected...

Page 118: ...citor or broken connection in the Output Network may be the cause if the transmitter also does not operate properly into a dummy load A thorough inspection of the Output Network may reveal the problem WARNING I REMOVE ALL AC POWER AND DISCHARGE ALL POINTS WHERE RESIDUAL MAY REMAIN BEFORE PREFORMING AN INSPECTION OF THE OUTPUT NETWORK 5 114 FAULT STATUS INDICATION 64 VSWR PHASE ANGLE DETECTOR OUTPU...

Page 119: ...ckaging could result in the destruction of the MOSFET A static charge could build up on a person as they walk across the carpet This static charge will eventually have to be discharged Dis charging to the MOSFET could damage the MOSFET NOTE MOSFET transistors which are in circuit are immune to this damage 5 122 The MOSFET transistors are shipped in antistatic packaging The transistors should remai...

Page 120: ...ONENTS WITH GROUNDING STICK BEFORE PERFORMING THE FOLLOWING PROCEDURE 2126 23 5 129 Remove all primary power and discharge all high voltage components with grounding stick 5 130 Using an ohmmeter on the Rxl scale check fuses AlOFlA AlOFlB A10F2A and Al0F2B These are located on the left wall of the transmitter as viewed from the rear along with the PDM Amplifiers and PDM Filter 5 131 Measure across...

Page 121: ...s and discard any open ones A blown fuse usually indicates one or two transistors have failed 5 138 The PA module can be removed from the transmitter for troubleshoot ing but disconnecting the large red banana plug from J3 will allow trouble shooting the PA module in place 5 139 Use an ohmmeter on the RxlOk scale to troubleshoot the transistors NOTE Which lead is the positive lead of the ohmmeter ...

Page 122: ...all sixteen transistors By checking all transistors a comparison can also be taken between pairs of transistors for future reference 5 144 Before installing any replacements refer to the paragraphs on HANDLING MOSFETS and TESTING MOSFETS 5 145 OHMMETER TESTING THE IPA WARNING I ENSURE ALL AC POWER HAS BEEN REMOVED FROM TRANSMITTER AND GROUNDING STICK IS USED TO REMOVE ANY RESIDUAL VOLTAGES THAT MA...

Page 123: ...www SteamPoweredRadio Com I A Ji A oll N _ II A C Figure 5 2 PA Transistor Identification 888 2126 026 WARNING Disconnect primary power prior to servicing 2126 39 5 19 ...

Page 124: ...n Fuse Loss of 30V Check the de voltage on each side of Fl 30 volts should be present anytime ac power is supplied to the transmitter and the low voltage circuit breaker is set to ON 5 159 Ql Q2 CR1 Using an oscilloscope check the signals at Ql and Q2 per the schematic Frequency of the signals at Ql and Q2 should be 2 or 4 times the carrier frequency depending on the jumper wire arrangement at E3 ...

Page 125: ...ive signal Pl must be connected as follows the center conductor 1 should be jumpered to the conductor closest to US 3 e Loss Of Reference With an counter verify that the waveform 10 000 MHz approximate square frequency it can be adjusted by oscilloscope and or frequency at E16 i s a 9 volt peak to peak wave If this signal is off potentiometer Rl4 f U9 U9 determines the de level supplied to Q8 and ...

Page 126: ...e width modulated signal is present on pin 12 of U2 when the frequency produced at El is not the desired carrier frequency If this waveform is not at a 10 KHz rate and the reference signal at El6 is at 10 000 MHz it is highly likely that U2 is not being properly programmed This could be due to a intermittent connection between J3 and U2 or a faulty synthesizer chip U2 d U3 The output of the phase ...

Page 127: ...he drive kill is added protection during a VSWR trip or other overload Because all the overloads are tied into the PDM RF drive kill command the drive level sensing is disabled for the duration of the kill signal This prevents the underdrive fault from being indicated during a non RF drive problem If however the RF drive is low it will be detected immediately once the RF sensing is enabled The res...

Page 128: ...nthesizer To IPA Drive Coax Open If the Oscillator output seems okay check for broken connections from the Oscilla tor board Al6 to the IPA AS J2 6 should measure 2 ohms to ground with a de ohmmeter 5 179 TROUBLESHOOTING A PA VOLTS PA AMPS RATIO CHANGE 5 180 POSSIBLE CAUSES 5 181 IMPEDANCE CHANGE The PA volts to PA amps ratio is sensitive to the impedance seen by the PA module If the impedance see...

Page 129: ...eck functions 06 thru 09 on the digital display These show the PA voltages of the four PDM phases Normally these voltages will equal each other within 2 to 3 volts In this case one phase will read the full supply voltage approximately 260 volts 5 187 Modulator Failure Short 5 188 Isolating the failure can be attempted first with an ohmmeter a OHMMETER TESTING WARNING I REMOVE ALL POWER AND GROUND ...

Page 130: ...13 CR23 CR33 or CR43 or a shorted capacitor in the same circuit 3 Shorted PDM Filter If the banana plug wire removed from the PDM Amplifier still shows a short to ground even with the PA banana plugs removed there is a short on the PDM Filter Trace the wire showing the short into the PDM Filter board There could be a shorted capacitor or shorted clamping diode in that section of the PDM Filter boa...

Page 131: ...E THAT THE HIGH VOLTAGE HAS BEEN APPLIED AND NO PA CURRENT HAS BEEN DRAWN THE HIGH VOLTAGE SUPPLY WILL NOT BE ROUTINELY DISCHARGED ALL HIGH VOLTAGE CAPACITORS HAVE BLEEDER RESIS TORS ON THEM WHICH WILL REQUIRE SEV ERAL MINUTES TO FULLY DISCHARGE THE SUPPLY OPENING THE BACK DOOR WILL CAUSE A VERY RAPID DISCHARGING OF THE SUPPLY DUE TO THE AMOUNT OF DISCHARGE CURRENT IT IS BEST TO ALLOW THE HIGH VOL...

Page 132: ...It may be necessary to re move these capacitors from the circuit in order to determine if they contribute to the fault condition A shorted clamping diode will cause the 2 ohm resistor near it to heat up when voltage is applied 4 PDM Amplifier Fault If the PA current only flows when the PDM Amplifier banana plugs are in place one of the PDM Amplifiers is at fault Determine which one of the PDM Ampl...

Page 133: ...ck AlOFlA FlB F2A and F2B These fuses are located on the left side of the transmitter along with the PDM Amplifiers and PDM Filter board as viewed from the rear of the transmitter These fuses are mounted in fuse blocks not to be confused with the fuses on the PDM Amplifier boards A6 and A7 If a fuse is blown it would be wise to make ohmmeter checks of the PDM Amplifiers to determine if there is a ...

Page 134: ...PA and modulator sections with the high voltage on This can be done by making use of a BNC bulkhead connector at the back of the pull out drawer enclosure 5 192 With the primary power turned off open the back door and locate J6 This is the upper left BNC connector in the group of four located directly above A23 the bottom Customer Interface board This connector is usually used for the frequency sa...

Page 135: ...sis tors may be checked for switching operation while running on 30 volts 5 198 PROCEDURE WARNING I BEFORE PERFORMING THE FOLLOWING PROCEDURE DISCONNECT ALL POWER FROM THE TRANSMITTER AND USE GROUNDING STICK TO DISCHARGE ALL POINTS BEFORE TOUCHING THEM a Disconnect all primary power from the transmitter b For an extra margin of safety disconnect and insulate the primary leads from the high voltage...

Page 136: ...ING MEASUREMENT 5 200 The RF drive phasing measurement may be useful in locating some problems which may be obscure to other means of troubleshooting Repeated failures of a particular PA transistor set might be caused by a large drive phasing imbalance Drive phase imbalance could also reduce PA efficiency 5 201 Measurements of the rf drive are made with the transmitter in the OFF mode but the low ...

Page 137: ...le to the 4 degree per division set up 5 212 Adjust the horizontal position of the oscilloscope to place the zero crossing of the rf drive signal in the center of the oscilloscope The oscilloscope has now been set up to measure degrees of phase shift relative to the drive signal across the R13 position 5 213 Move the oscilloscope probe to Rl4 the next rf drive test point 5 214 If the oscilloscope ...

Page 138: ...re alright and the fault lies with the drive transformer 5 218 TROUBLESHOOTING AM NOISE 5 219 When troubleshooting a noise problem it is important to know the level and frequency of the noise Knowing the frequency of the noise it is possible to isolate the source The frequency of the noise may be deter mined by connecting an oscilloscope to the output of most distortion ana lyzers The oscilloscope...

Page 139: ...e HV supply Al9CR1 Al9CR2 Al9CR3 and Al9CR4 Also check the block type rectifier bridge A20CR1 in the 30 volt supply An open rectifier would also result in a decrease in supply voltage Also use an oscilloscope to look for any evidence of 50 60 Hz noise in the power supplies 30 volts and a high voltage supply sample appear on the PDM Generator Al5 30 volts is at the fuses of the PDM Generator and th...

Page 140: ...her side of an audio line takes away common mode rejection which is essential in preventing this type of noise The SX transmitter is designed with extensive RFI filtering on the audio input circuitry and furthermore has a solid state instrumentation input circuit with high common mode rejection 5 222 TROUBLESHOOTING THE PDM GENERATOR 5 223 SYMPTOM HUM NULL CONTROL R30 HAS NO EFFECT ON THE NOISE LE...

Page 141: ...ccessible on RlOO located near Q3 and Q4 The voltage at J3 2 is 5 volts for nor mal operation and near zero during a PDM KILL Q3 and or Q4 may be at fault if 5 volts is present at J3 2 but no 15 volts is present at the collector of Q4 A continuous PDM KILL signal J3 2 low would be the fault of control circuitry on the Status and Multimeter board d DC AUDIO FAILURE Measure the voltage at 02 14 Norm...

Page 142: ...iangle wave converters may be the fastest way of locating the problem 5 229 SYMPTOM IMBALANCE IN OUTPUT PULSE WIDTHS Causes PDM Phase Volt age Imbalance a AUDIO IMBALANCE An imbalance in the two phases of the DC AUDIO circuitry is characterized by an imbalance i n the duty cycle between the two outputs of both threshold comparators U9 and UlO Each dual comparator is driven by one triangle wave and...

Page 143: ...Vdc a ONLY ONE OUTPUT HIGH This is probably a fault of U9 or UlO depending on the output line in question The outputs of U9 and UlO are open collectors If the connection from one of these outputs to the pull up resistor R45 R46 R62 or R63 is open the corresponding output terminal of the PDM Generator board will be continuously high Check the voltage directly at the appropriate pin on U9 or UlO to ...

Page 144: ... or warped heat sink will also cause poor heat sinking Examine the mating surfaces to be certain there are no metal burrs or debris 5 238 PA TEMPERATURE IS HIGH 5 239 Refer to the preceeding paragraphs which apply to all modules before attempting to find a specific problem with the operation of the PA module 5 240 Having already checked out the other causes for high temperature it is now evident t...

Page 145: ...tment of the IPA will have to be made Refer to the IPA tuning procedure 5 245 If the drive level is very much out of the proper range the UNDER DRIVE and OVERDRIVE overloads should be checked These overloads should prevent energizing of the high voltage supply if the drive level is wrong 5 246 RF DRIVE PHASE BALANCE Refer to the procedure for checking RF drive phasing Differences in RF drive phasi...

Page 146: ...adio Com Figure 5 3 J4 on Al6 Oscillator 15 volts p p Figure 5 4 Ql Collector on A25 AC Controller 30 volts p p 50 usec per division 5 42 888 2126 026 WAR NING Disconnect primary power prior to servicing 2126 24 2126 25 ...

Page 147: ...tput at ClO 10 25 volts p p Lower Trace Q2 Collector Al6 Oscillator Board Before Divide By 4 Figure 5 6 Upper Trace IPA Input 10 volts per division Lower Trace IPA Transistor Output 20 volts per division 888 2126 026 WARNING Disconnect primary power prior to servicing 2126 27 5 43 ...

Page 148: ...m Figure 5 7 PA Transistor Outputs from One Quad 1450 kHz No Modulation Figure 5 8 PA Transistor Outputs from One Quad 550 kHz No Modulation 5 44 888 2126 026 WARNING Disconnect primary power prior to servicing 2126 28 2126 29 ...

Page 149: ...mPoweredRadio Com 2126 30 Figure 5 9 PA RF Drive Waveform PA O FF 30 vol ts p p 2126 31 Figure 5 10 PA RF Drive PA ON at lkW 30 volts p p 888 2126 026 5 45 WARNING Di iconnect primary power prior to servic ing ...

Page 150: ...5 ll and U5 14 15 volts p p Figure 5 12 Upper Trace US 9 on Al5 PDM Generator Lower Trace Q2 Collector on Al5 Waveform is de offset above ground by 2 to 4 volts 2 volts per division on both traces 5 46 888 2126 026 WARNING Disoonnect primary power prior to servicing 2126 32 2126 33 ...

Page 151: ...ce U7 6 R42 3 5 volts p p Lower Trace US 6 R59 US leads by 90 degrees Figure 5 14 Upper Trace Ul0 12 R62 15 volts p p Lower Trace U9 7 R46 U9 leads by 90 degrees 888 2126 026 WARNING Disconnect primary power prior to servic ing 2126 34 2126 35 5 47 ...

Page 152: ...www SteamPoweredRadio Com Figure 5 15 PDM Amp A6 A7 Outputs 250 volts p p JS J6 Cases of MOSFETs 5 48 888 2126 026 WA RNING Disconnect p ri mary pow er prior to servic ing 2126 36 ...

Page 153: ... 30 volt supply from faults within the oscillator Used to protect 30 volt supply from over current condition Used to protect 30 volt supply from over current condition Interlock fuse used to protect external interlock circuits from accidental grounding Protects 30 volt supply from over current surges on PDM Amp A6 Protects 30 volt supply from over current surges on PDM Amp A6 Protects the PDM Ampl...

Page 154: ... mitter from over current condition in PA Module Protects other circuitry in trans mitter from over current condition in PA Module Protects other circuitry in trans mitter from over current condition in PA Module Protects other circuitry in trans mitter from over current condition in PA Module Protects other circuitry in trans mitter from over current condition in PA Module Protects other circuitr...

Page 155: ... X 1 1 4 LITTELFUSE 322003 2 11 FUSE FAST 10A 500VDC MAX 2 7 13 32 X 1 1 2 HIGH FAULT CURRENT CAPACITY 600VAC RMS MAX 200K AMPS AC INTERRUPTING RATING BUSSMANN KLMlO FUSE FAST SA 250V CARTRIDGE 2 5 25 IN DIA X 1 25 IN LG AGC BUSSMANN OLD 3AG 312 500 LITTELFUSE FUSE 3AG FAST 1A 250 CARTRIDGE 2 1 25 IN DIA X 1 25 IN LG AGC BUSSMANN 312001 LITTELFUSE FUSE 3AG FAST 2A 250 CARTRIDGE 2 15 25 IN DIA X 1 ...

Page 156: ... FOR EXACT RE PLACEMENT HARRIS PART NO DESCRIPTION SHOWN IN FIGURE 398 0081 000 FUSE SLOW 2A 125V 250V CARTRIDGE 2 9 25 IN DIA X 1 25 IN LG MDL BUSSMANN 313002 LITTELFUSE 398 0019 000 FUSE 3AG FAST 2A 250 CARTRIDGE 2 9 25 IN DIA X 1 25 IN LG AGC BUSSMANN 312002 LITTELFUSE 398 0403 000 FUSE RECTIFIER 3A 250V CERAMIC 2 10 1 4 X 1 1 4 LITTELFUSE 322003 398 0019 000 FUSE 3AG FAST 2A 250 CARTRIDGE 2 7 ...

Page 157: ...y the door shorts the power supply to the cabinet eliminating any possible voltage remaining on the filter capacitors WARNING I THE NORMAL PROCEDURE IN TRANSMITTER TURN OFF SHOULD BE FOLLOWED IN DEENERGIZING THIS TRANSMIT TER TURN OFF THE HIGH VOLTAGE BY DEPRESSING THE OFF BUTTON LOW VOLTAGE MAY THEN BE REMOVED BY SETTING THE LOW VOLTAGE CIRCUIT BREAKER TO OFF IF YOU MUST ENTER THE TRANSMITTER ALL...

Page 158: ... milliseconds later Al9K2 de energizes 6 9 Single phase ac power for the low voltage circuits enters the trans mitter at TBl terminals 5 and 6 It is then fed to circui t breaker AlOCBl When AlOCBl is set to ON the load side of AlOCBl supplies ac power to A20Tl which in turn supplies voltage to the low voltage power supplies 6 10 RF POWER FLOW 6 11 The transmitter s carrier frequency originates fro...

Page 159: ...applied at J2 10 approximately 7 volts is dropped across CR3 Approximate ly 23 volts is then applied to the input of U8 and 15 volts regulated is provided at the output Diodes CRlO CRll and CR12 comprise a transient protection circuitry and reverse polarity protection for U8 CR12 limits any transients that might appear on the output of U8 to 17 volts thus pro tecting all of the low level circuitr ...

Page 160: ... sample which is proportion al to the current in the high voltage power supply This signal is applied to R24 R24 and R23 combine with Ul to form an inverting amplifier which turns the negative sample into a positive signal and R23 determines the gain of this signal This provides a positive buffered sample of supply current and is passed on from Jl 11 to the metering circuitry on the Status and Mul...

Page 161: ...applied to Jl 15 U5 conducts thus thereby turning on CR2 and K2 will be energized 6 26 The FAILSAFE interlock and the door interlock switches are in series with the main contactor coils If any interlock is broken the main con tactors will drop out thereby removing high voltage power from the transmit ter The transmitter will not come on if the door interlocks are broken or if the FAILSAFE interloc...

Page 162: ...s commonly known as 2016 s NOTE Some transmitters do not have U6 installed 6 32 U2 forms the interrupt control structure for the 8085 Interrupts are applied at the inputs of U2 which are pins 22 23 24 and 25 and then U2 signals Ul through the interrupt line INT that one of the lines is re questing an interrupt Ul responds and the interrupt is serviced IC s which can generate interrupts include Ul6...

Page 163: ...ortant in formation about other modules within the transmitter This includes infor mation about each of the power amplifiers within the transmitter and the main power supply along with information about the status and control system itself The Status and Multimeter board also provides signals for operating the main power supply and the power output of the transmitter The signals required for the o...

Page 164: ...N LOGIC The two control lines labeled A and B are used to indicate which of the two buses on the Status and Multimeter board the System Controller wishes to communicate with The A and B lines are ac tive low which is to say that they are low when they are true This is true of all the control lines except READY Signals which are active low are marked with a line above the signal designator on the s...

Page 165: ...d the processor isolator for the System Controller which is waiting is activated preventing any unwanted coupling of signals from System Controller Ill to System Controller E2 6 43 READ WRITE SELECTION Ul6 Ul7 and Ul8 are used to gate the RD and WR signals from each System Controller to the proper RDA RDB or WRA WRB lines depending on the Al Bl A2 B2 control lines The RD and WR signals are used by...

Page 166: ...times when operation at high power may damage components in the low power phasing networks of stations with low power directional arrays By activating the high power interlock on the Customer Interface board U4 pin 10 will be low When the System Controller detects a low condition on the input of U42 pin 4 depressing the HI POWER button on the front panel will have no effect 6 51 U42 pin 5 contains...

Page 167: ...er If the current to the main power amplifier is greater than the thres hold set by R57 then the output of U44 pin 2 will go low causing the System Controller to remove the PDM drive signals to the PDM amplifiers causing a shutdown of rf output from the transmitter If this action removes the overload the transmitter will recycle back on the air again 6 58 U46 pin 3 contains the state of the drive ...

Page 168: ...ll be to remove PDM drive from the transmitter and then as soon as possible restore the PDM drive and continue with the transmitter on the air This action is necessary in the event of a failure of some component in the transmission system causing the transmitter to be subjected to a high continuous VSWR 6 64 PDM Power Latch U47 U47 is an 8212 data latch which contains the least significant 8 bits ...

Page 169: ...or drivers on the AC Controller board This action will cause K2 in the main power supply to be turned on 6 75 U49 pin 15 is brought to the high state to turn off Q34 and thus turns on Q35 which is connected to the main power supply contactor drivers on the AC Controller board This action will cause Kl in the main power supply to be turned on 6 76 U49 pin 17 is brought to the high state to turn on ...

Page 170: ... the desired analog input CMOS logic levels by U31 and are U25 U26 U27 U28 and U34 used to set the analog multiplexer chan These 6 bits are translated from TTL to then sent on to the analog multiplexers 6 87 The upper 2 bits of U29 along with U30 and two bits from U49 are used to set the analog scale factor in U35 after being translated from TTL to CMOS logic levels by U32 and U33 6 88 Analog Mult...

Page 171: ...detect switch closures which are connected to its input and also to dis play up to 16 digits of information on an appropriate display device The controller requires a clock to use as timing for all of its functions so U39 is used to form an oscillator by connecting R40 from U39 pin 12 to 13 and Cl6 from pin 13 to ground This provides a frequency of about 500 kHz at the clock input pin 3 of U6 U6 i...

Page 172: ...AIN SUPPLY CURRENT U28 5 22 MAIN SUPPLY VOLTAGE U28 12 23 PHASE 4 VOLTS U28 4 24 10 00 VOLT REFERENCE U34 2 32 A6 TEMPERATURE U27 13 33 A2 FUSE FINDER U27 1 34 A8 Q39 40 U27 15 35 A2 TEMPERATURE U27 2 36 A6 Q39 40 U27 14 37 A4 FUSE FINDER U27 5 38 Al TEMPERATURE U27 12 39 Al FUSE FINDER U27 4 40 15 VOLT SUPPLY U34 5 48 AS TEMPERATURE U25 13 49 IPA DRIVE LEVEL U25 1 50 REFLECTED POWER U25 15 51 FOR...

Page 173: ...uffers the forward and reflected power indications to the customer interface panel J3 l contains the forward sample J3 3 contains the reflected power sample J3 5 con tains the PA voltage sample which is isolated by Rl3 J3 7 contains the PA current sample which is isolated by Rl4 6 97 PDM GENERATOR 6 98 The general purpose of the PDM Generator board is to set up the car rier power levels for the tr...

Page 174: ...eir associated circuitry consists of a current source which supplies the transistors in U6 with a constant current to charge up capacitors C37 and C38 When the switches in US are closed the current flowing through the transistors in U6 flow through the switches in U5 to ground thereby linear ly discharging the capacitors C37 and C38 When the switches in US are open the current flowing through U6 f...

Page 175: ... positioned one and two This allows two phases of the PDM signal to drive two separate pairs of PDM amplifier transistors The PDM input signal passes through isolation resistors Rll and R31 and into current amplifiers Ulland U31 These IC s act as voltage followers and pass the PDM signal to the class B drivers transistors Ql3 Ql4 Ql5 Ql6 Q35 Q36 and Q33 and Q34 Only the first leg of the PDM amplif...

Page 176: ...he power supply through the PDM pull up board TCl monitors the temperature of the PDM amplifier heatsink and sends a de voltage to the Status and Multimeter board for monitoring information 6 108 PDM PULL UP BOARD 6 109 The general purpose of the PDM pull up board is to bypass the damper diode and to aid in maintaining constant rise time of the PDM waveform to improve the modulation linearity Poin...

Page 177: ...he outputs of the PDM filters are tied directly to the power amplifier modulation input jacks In addition to this connection there are four resistors and three capacitors connected to the output of the PDM fil ter which act as a high frequency audio equali zation circuit This circuit helps to balance the PDM phases at high frequency modulation 6 112 OSCILLATOR Al6 6 113 The oscillator is the stand...

Page 178: ...rated by the phase comparator The first section comprising Rl8 R19 and C22 forms a low pass filter and determines the dynamic characteris tics of the PLL The first operational amplifier in U3 acts as a buffer voltage follower The second stage of U3 forms another low pass filter The third and fourth stages of U3 form a low pass notch filter with a notch placed at 10 0 kHz This filter prevents the 1...

Page 179: ...men tary power failures CRll and CR13 protect the regulator if there is a short to ground on the input or output respectively The above discussion also applies to the 5 volt de power supply U8 6 127 The 9 volt de power supply is derived from a transistor zener diode regulator Q2 R4 provides base current for Q2 and reverse biases zener diodes CR2 and CR3 Capacitor C6 provides output filtering Diode...

Page 180: ...from the rest of the circuit so that the r f drive will not sag Resistors Rll and R13 help swamp the input drive circuit The parallel chokes Ll3 and L16 parallel resonate the rf drive input for carrier frequencies of 1100 kHz and above For carrier frequencies below 1100 kHz these chokes should removed The self inductance of the transformers Tll and Tl2 parallel resonate the input circuit for these...

Page 181: ...least 80 dB below the desired carrier when operated int o a broadband resistive load Note the FCC requires 80 dB for 5 kW 77 dB for 2 5 kW and 73 dB for 1 kW b Impedance Matching The network provides an impedance transfor mation from the nominal 50 ohm output connection to the PA Toroid board The real part of the impedance presented to the PA Toroid board is approximately 28 ohms for 5 kW 14 ohms ...

Page 182: ...ee phase shift provides minimum interaction between the TUNING and LOADING controls The output series arm can be adjusted to com pensate for minor changes in the real part of the antenna load The input series arm can be adjusted to compensate for a minor reactive antenna load A 50 ohm non reactive load is presented to the Butterworth filter The bandwidth of the TEE network is so broad that it does...

Page 183: ...Q of the first section Since there is distributed inductance in the PA Toroid board the inductor of the first section of the filter is adjusted to zero reactance to the PA transistors This technique accommodates the reactances on the PA Toroid board gives a non reactive load to the transistors for maximum efficiency and maintains proper Q of the 1st section of the filter for correct Butterworth ba...

Page 184: ...exactly in phase such that no current will flow in CR2 and thereby no signal will be developed at the output of this detector The L C filter on the output of the detector acts as an audio low pass fil ter and filters any rf energy off of the detector output Resistors Rl and R2 are terminating resistors and along with resistors on the RFI board and the Status and Multimeter board provide a pad for ...

Page 185: ...OSURES PANELS OR SHIELDS ALWAYS USE GROUNDING STICKS AND SHORT OUT HIGH VOLTAGE POINTS BE FO RE SERVICING ENSURE DUST DIRT AND CHIPS ARE REMOVED FROM CABINET BEFORE POWER SUPPLY OPERATION IS STARTED NEVER MAKE INTERNAL ADJUSTMENTS PER FORM MAINTENANCE OR SERVICE WHEN ALONE OR WHEN TIRED 6 161 The purpose of the High Voltage Power Supply in this transmitter line is to supply the primary high power ...

Page 186: ...s There are no taps on the secondary of the power trans former for voltage adjustment There are taps on the primary of all the transformer to allow line voltage adjustment from 197 volts to 251 volts with 11 volt steps 6 165 During the turn on sequence a resistor is connected in series with the primary of each transformer to limit the capacitor charging current to a safe value for 500 milliseconds...

Page 187: ...SISTOR DIS CHARGE MECHANISM TO FUNCTION UP ON OPENING THE DOOR FURTHER THE POWER SUPPLY WILL BE SHORTED TO GROUND AND MADE SAFE A GROUNDING STICK IS PROVIDED IN THE TRANS MITTER TO ASSURE THAT ALL VOLTAGE HAS BEEN REMOVED UNDER FAULT CONDITIONS 6 167 If the above warning is not heeded substantial damage may be done to circuit card foil grounding switches and the capacitors themselves Always allow ...

Page 188: ... control and driver functions in the transmitter The 30 volts is not regulated however in dividual boards that require regulation will do onboard regulation for 15 and 5 volt applications 6 173 DESCRIPTION The 30 volt power supply is driven with a power transformer with 208 240 taps plus taps for 11 volt variations to compen sate for customer line variations The secondary of the transformer is cen...

Page 189: ... be voltage on the IPA matching LC network between the IPA and common point pc board Voltages within this circuit can exceed 70 volts and therefore are protected with a high voltage shield that must remain in place during operation of this equipment 888 2126 001 6 33 6 34 WARNING Disconnect primary power prior to ervicing ...

Page 190: ...www SteamPoweredRadio Com ...

Page 191: ...t parts are available 24 hours a day seven days a week from the HARRIS Service Parts Department Telephone 217 222 8200 to contact the service parts department or address correspondence to Service Parts Department HARRIS CORPORATION Broadcast Transmission Division P O Box 4290 Quincy Illinois 62305 4290 USA The HARRIS factory may also be contacted through a TWX facility 910 246 3312 or a TELEX serv...

Page 192: ... BOARD 1 KW PDM FILTER BD KEYBOARD DISPLAY BD H V FILTER BD IPA PWR SPLITTER BD PDM PULL UPBOARD CABLE 4 POWER SUPPLY CABLE 1 SX 1 MAIN CABLE 6 CONTROL DRAWER CABLE 3 HV FILTER CABLE 5 JUMPERS AC CONTROLLER BOARD 888 2126 029 PART NO 994 8581 001 992 6057 001 992 5868 002 939 5695 053 992 5870 002 939 5695 053 992 5879 003 992 5885 002 992 5870 007 992 5868 003 992 6414 001 992 5882 001 992 6260 0...

Page 193: ...L45 FREQ DETERMINED A01Ll4 A01L15 494 0390 000 CHOKE RF 3 30 UH 0 EA A01L24 A01125 A01L34 A01L35 A01L44 A01L45 FREQ DETERMINED A27A1Ll A27A1L2 494 0399 000 CHOKE RF 12 0UH 0 EA FREQ DETERMINED A27A1Ll A27A1L2 494 0401 000 CHOKE RF 18 0UH 0 EA FREQ DETERMINED A27AlC4 A27A1C6 500 0755 000 CAP MICA 270PF 500V 5 0 EA FREQ DETERMINED A27AlC6 FREQ DET 500 0761 000 CAP MICA 150PF 500V 5 0 EA A27AlC4 A27A...

Page 194: ...00 504 0396 000 504 0430 000 504 0431 000 504 0432 000 504 0442 000 504 0443 000 504 0444 000 504 0445 000 504 0451 000 504 0452 000 516 0743 000 516 0744 000 516 0745 000 516 0746 000 516 0747 000 516 0748 000 540 0589 000 700 0850 000 990 1012 001 992 5868 002 992 5868 003 992 5870 002 DESCRIPTION CAP 4700PF 500V 5 CAP 02UF 2KV 5 CAP 03 UF 1500V 5 CAP 0047 UF 6KV CAP MICA 5100PF 4KV CAP 7500PF 4...

Page 195: ... 5881 001 SX 1 PARTS FORMAT FREQ 1 EA A27A01 992 5882 001 PHASE ANGLE DETECTOR 1 EA A016 OPTION 992 5885 002 FREQUENCY SYN BOARD 0 EA 992 6197 001 SX 1 HORIZONTAL PKG CHK L 0 EA 992 6197 002 SX 1 VERTICAL PKG CHK LIS 0 EA OSCILLATOR OPTION 992 6260 007 SX44 SOFTWARE PKG 0 EA FREQ SYN OPTION 992 6260 008 SX44S SOFTWARE PKG 0 EA Al6Yl OSCILLATOR 992 6414 001 CRYSTAL SELECTION LIST 0 EA OPTION 994 85...

Page 196: ...OOA 250V 2 0 Al6Fl 398 0017 000 FUSE FAST CART 1A 250V 1 0 Al6F001 398 0019 000 FUSE FAST CART 2A 250V 1 0 A19F2 398 0413 000 FUSE SEMICONDUCTOR 25A 1 0 A19FlA A19FlB 398 0221 000 FUSE DUAL CART 30A 250V 2 0 A25Fl 398 0081 000 FUSE SLO CART 2A 125 250V 1 0 A25F004 398 0019 000 FUSE FAST CART 2A 250V 1 0 A5Fll A5F12 398 0403 000 FUSE RECTIFIER 3A 250V 2 0 A6F001 A7F001 398 0019 000 FUSE FAST CART 2...

Page 197: ...15 UF 400WVDC 5 1 0 C025 000 0000 003 FREQUENCY DETERMINED PART 1 0 C26 C27 508 0537 000 CAP 047 UF 600WVDC 5 2 0 C28 C29 500 0881 000 CAP 3000 PF 500V 5 2 0 C030 000 0000 003 FREQUENCY DETERMINED PART 1 0 C31 516 0081 000 CAP DISC OlUF 1KV 20 1 0 C32 508 0538 000 CAP 15 UF 400WVDC 5 1 0 C33 516 0081 000 CAP DISC OlUF 1KV 20 1 0 C34 508 0538 000 CAP 15 UF 400WVDC 5 1 0 C035 000 0000 003 FREQUENCY ...

Page 198: ...546 0295 000 000 0000 003 546 0293 000 546 0295 000 000 0000 003 546 0293 000 546 0295 000 000 0000 003 546 0293 000 382 0707 000 939 5695 053 382 0355 000 DESCRIPTION CHOKE RF 10 0UH FREQUENCY DETERMINED PART CHOKE RF 10 0UH CHOKE 40UH 2 AMP CHOKE RF 10 0UH FREQUENCY DETERMINED PART CHOKE RF 10 0UH CHOKE 40UH 2 AMP CHOKE RF 10 0UH FREQUENCY DETERMINED PART CHOKE RF 10 0UH CHOKE 40UH 2 AMP CHOKE R...

Page 199: ...F22B XF31A XF31B XF32A XF32B XF41A XF41B XF42A XF42B 16 0 358 2738 000 STDOFF 4 40 M M X 5 LG 8 410 0384 000 INSULATOR 4 SCREW 32 0 410 0385 000 INSULATOR T0 3 SILICON 16 0 612 1127 000 JACK CONNECTOR THRU HOLE 32 J3 817 0914 015 SPACER 1 0 1 Jll IIJ21 IIJ3l 817 0914 021 SPACER IIJ41 4 0 843 3655 199 INSULATOR PA 1 888 2126 026 7 9 WARNING Disconnect primary power prior to servicing ...

Page 200: ...weredRadio Com Table 7 5 TRANSFORMER TOROID 939 5695 053 REF SYMBOL HARRIS PART NO DESCRIPTION QTY UM CR1 CR2 386 0412 000 ZENER UDZ718 18V 2 0 7 10 888 2126 026 WARNING Disconnect primary power prior to servicing ...

Page 201: ...0 Jl 610 0830 000 HEADER 10 PIN PC RIBBON 1 0 J2 620 0515 000 RECP 50 051 0000 1 0 J3 610 0831 000 CONN 8 PIN PC MT 1 0 Lll L12 494 0395 000 CHOKE 40UH 2 AMP 2 0 Q011 Q012 Q013 380 0652 000 TRANSISTOR IRF130 Q014 4 0 Rl 540 0634 000 RES 9 1 K OHM 2W 5 1 0 R002 546 0295 000 RES 50 M 3 25W 5 1 0 ROH 546 0300 000 RES PO R 510 OHM 13W 5 1 0 Rl3 R14 546 0293 000 RES 2 OHM 2 5W 5 2 0 TCl 382 0707 000 IC...

Page 202: ...weredRadio Com Table 7 7 TRANSFORMER TOROID 939 5695 053 REF SYMBOL HARRIS PART NO DESCRIPTION QTY UM CR1 CR2 386 0412 000 ZENER UDZ718 18V 2 0 7 12 888 2126 026 WARNING Disconnect primary power prior to servicing ...

Page 203: ...0V 1 0 C016 516 0453 000 CAP lUF 100V 20 1 0 C017 C018 526 0318 000 CAP lOUF 35V 20 2 0 C019 C020 516 0453 000 CAP lUF 100V 20 2 0 C021 500 0818 000 CAP MICA 50UUF 500V 1 0 FOOl 398 0017 000 FUSE FAST CART 1A 250V 1 0 JOOl 620 1677 000 RECEPTACLE PANEL BNC 1 0 J002 610 0831 000 CONN 8 PIN PC MT 1 0 J003 610 0827 000 HEADER 20 PIN PC RIBBON 1 0 J004 J005 620 1677 000 RECEPTACLE PANEL BNC 2 0 LOOI 4...

Page 204: ...0 000 RES 51 0 OHM 2W 5 1 0 R026 540 1188 000 RES 270 0 OHM l 2W 5 1 0 R027 550 0623 000 POT 5K OHM 5W 10 1 0 T001 939 5695 117 XFMR OSCILLATOR TOROID 1 0 UOOl 382 0074 000 IC 7476 1 0 U002 382 0726 000 IC DS0026J 8 MMH0026CP1 1 0 U003 382 0475 000 IC 317 1 0 XFlA XFlB 402 0129 000 CLIP FUSE 2 0 XYOOl 404 0267 000 SOCKET CRYSTAL 1 0 IIU003 335 0254 000 WASHER TEFLON 114 2 IIQ003 IIQ004 404 0513 00...

Page 205: ...V 20 2 0 C022 506 0246 000 CAP 47UF 63V 5 1 0 C023 C024 516 0453 000 CAP lUF lOOV 20 2 0 C025 500 0899 000 CAP 4300PF 500V 5 1 0 C026 500 0754 000 CAP MICA 220PF 500V 5 1 0 C027 500 0887 000 CAP 2200PF 500V 5 1 0 C028 C029 500 0902 000 CAP 3300PF 500V 5 2 0 C030 500 0787 000 CAP 200PF 500V 5 1 0 C031 516 0067 000 CAP DISC 003UF lKV 20 1 0 C032 C033 C034 516 0453 000 CAP lUF 100V 20 3 0 C035 526 00...

Page 206: ...951 000 RES 43 0K OHM l 4W 5 2 0 R025 540 0947 000 RES 30 0K OHM 1 4W 5 1 0 R026 540 0952 000 RES 47 0K OHM l 4W 5 1 0 R028 548 1401 000 RES 12 lK OHM 1 4W 1 1 0 R029 548 0366 000 RES 22 lK OHM 1 4W 1 1 0 R030 548 1401 000 RES 12 lK OHM 1 4W 1 1 0 R031 548 1403 000 RES 2490 OHM 1 4W 1 1 0 R032 548 1548 000 RES 37 4K OHM 1 4W 1 1 0 R033 540 0929 000 RES 5 lK OHM l 4W 5 1 0 R034 540 1119 000 RES 1 8...

Page 207: ... 0 U005 382 0667 000 IC 74S196 1 0 U006 382 0726 000 IC DS0026J 8 MMH0026CP1 1 0 U007 382 0359 000 IC 7815 1 0 U008 382 0184 000 IC 340T 5 7805 5V REG 1 0 U009 382 0475 000 IC 317 1 0 UOlO 700 0423 000 OSC CRYSTAL 10MHz 1 0 XF01A XF01B 402 0129 000 CLIP FUSE 2 0 XU002 404 0507 000 SOCKET IC 18 PIN 1 0 XU003 XU004 404 0674 000 SOCKET IC 14 CONT XU005 3 0 XU006 404 0673 000 SOCK ET IC 8 CONT 1 0 XU0...

Page 208: ...PA TOROID BOARD 16 TO 2 992 5870 007 REF SYMBOL Cll R011 R012 HARRIS PART NO 508 0538 000 540 0089 000 DESCRIPTION CAP 15 UF 400WVDC 5 RES 47 0K OHM 1 2W 5 7 18 888 2126 026 WARNING Disconnect primary power prior to servicing QTY 1 0 2 0 UM ...

Page 209: ...NT 1 0 Rl 540 1386 000 RES NETWORK 10K OHM 2 1 0 Rll R12 R21 R22 540 0116 000 RES 620 0K OHM l 2W 5 R31 R32 R41 R42 8 0 IIT11 IIT21 IIT31 255 0018 000 WIRE lOAWG 15KV STRD SPC IIT41 13 0 FT IIT11 IIT21 IIT31 414 0243 000 TOROID FERRITE IIT41 4 0 843 3655 025 PC BD TOROID 1 0 IIT11 IIT21 IIT31 917 0914 010 STAPLE IIT41 64 0 888 2126 026 7 19 WARNING Disconnect primary power prior to servicing ...

Page 210: ...60KHZ 1 0 750 444 2198 000 XTAL NE6A 3000KHZ 1 0 760 444 2199 000 XTAL NE6A 3040KHZ 1 0 770 444 2200 000 XTAL NE6A 3080KHZ 1 0 780 444 2201 000 XTAL NE6A 3120KHZ 1 0 790 444 2202 000 XTAL NE6A 3160KHZ 1 0 800 444 2203 000 XTAL NE6A 3200KHZ 1 0 810 444 2204 000 XTAL NE6A 3240KHZ 1 0 820 444 2205 000 XTAL NE6A 3280KHZ 1 0 830 444 2206 000 XTAL NE6A 3320KHZ 1 0 840 444 2207 000 XTAL NE6A 3360KHZ 1 0 ...

Page 211: ... 2246 000 XTAL NE6A 4920KHZ 1 0 1240 444 2247 000 XTAL NE6A 4960KHZ 1 0 1250 444 2248 000 XTAL NE6A 5000KHZ 1 0 1270 444 2249 000 XTAL NE6A 2540KHZ 1 0 1290 444 2250 000 XTAL NE6A 2580KHZ 1 0 1310 444 2251 000 XTAL NE6A 2620KHZ 1 0 1330 444 2252 000 XTAL NE6A 2660KHZ 1 0 1350 444 2253 000 XTAL NE6A 2700KHZ 1 0 1370 444 2254 000 XTAL NE6A 2740KHZ 1 0 1390 444 2255 000 XTAL NE6A 2780KHZ 1 0 1410 444...

Page 212: ...44 2664 000 XTAL NE6A 2920KHZ 1 0 1480 444 2665 000 XTAL NE6A 2960KHZ 1 0 1500 444 2666 000 XTAL NE6A 3000KHZ 1 0 1520 444 2667 000 XTAL NE6A 3040KHZ 1 0 1540 444 2668 000 XTAL NE6A 3080KHZ 1 0 1560 444 2669 000 XTAL NE6A 3120KHZ 1 0 1580 444 2670 000 XTAL NE6A 3160KHZ 1 0 1600 444 2671 000 XTAL NE6A 3200KHZ 1 0 816 3493 001 CRYSTAL DET CHART 0 7 22 888 2126 026 WARNING Disconnect primary power pr...

Page 213: ... 0515 000 000 0000 003 540 0577 000 540 1215 000 540 0977 000 917 0914 179 DESCRIPTION DIODE SILICON 1N914 ZENER 1N4740A lOV CAP 210 lOOOPF FREQUENCY DETERMINED PART CAP 0022UF 63V 5 FREQUENCY DETERMINED PART RECEPTACLE BNC VERT PCB RECP 50 051 0000 FREQUENCY DETERMINED PART RES 39 0 OHM 2W 5 RES 20 0 OHM l 2W 5 RES 510 0K OHM 1 4W 5 TRANSFORMER PHASE ANGLE 888 2126 026 WARNING Disconnect primary ...

Page 214: ...BOL HARRIS PART NO DESCRIPTION QTY UM Al3U4 Al3U5 382 0575 000 IC 2716 Al3U6 3 0 Al3U7 Al3U8 382 0700 000 IC 2016 2128 2 0 Al4U4 Al4U5 382 0575 000 IC 2716 A14U6 3 0 Al4U7 Al4U8 382 0700 000 IC 2016 2128 2 0 7 24 888 2126 029 WARNING Disconnect primary power prior to servicing ...

Page 215: ...U5 Al4U6 Al4U7 A14U8 Table 7 15 SX44S SOFTWARE PKG 992 6260 008 HARRIS PART NO DESCRIPTION 382 0575 000 IC 2716 382 0700 000 IC 2016 2128 382 0575 000 IC 2716 382 0700 000 IC 2016 2128 888 2126 029 WARNING Disconnect primary power prior to servicing QTY 3 0 2 0 2 0 2 0 UM 7 25 ...

Page 216: ... 317 o 382 0552 000 IC TL074CN3 0 382 0565 000 IC 741S138 TTL DECOD o 382 0569 000 IC 8212 o 382 0588 000 IC 4013 o 382 0617 000 IC LM319 o 382 0726 000 IC DS0026J 8 MMH0026CP1 o 384 0020 000 RECTIFIER IN4005 o 384 0612 000 DIODE 1N3070 0 384 0351 000 RECTIFIER 2N5756 o 384 0431 000 RECT 1N4001 o 384 0702 000 RECT lOOPIV 27A MDA 990 2 o 384 0704 000 TRlAC DRIVER MOC3020 o 384 0705 000 RECT 80A 100...

Page 217: ...14 147 STRAP A21C4 TO 17 1 IIA21Cl 817 0914 195 STANDOFF INSULATED 6 829 8305 429 PLATE A21C3 CONN 2 829 8305 434 STRAP A21Cl TO A21Ll 1 829 8305 435 STRAP A21C3 JUMPER 1 IIA21Cl IIA21C4 829 8305 489 STRAP INTERCONNECT 10 IIA21Cl IIA21C4 829 8305 491 STRAP JUMPER 3 IA21Cl IIA21C4 829 8305 492 STRAP INTERCONNECT 4 829 8305 621 STRAP Al8 TO E22 1 IIA21Cl IIA21C4 839 5695 149 PLATE CAP MTG 3 lfAl 839...

Page 218: ... HOUSING 20 POS RECEPT 2 618 0213 000 COAX CABLE RG188A U 20 FT 354 0710 000 CONTACT 22 26 RECEPTACLE 32 296 0261 000 TUBG SHRINKABLE 125 9 FT 252 0375 000 WIRE 24 AWG STRD BLK 1 4 FT 296 0264 000 TUBING SHRINKABLE 5 3 FT 829 8305 481 COAX CABLE ASSY PA PWR 0 ___ 7 28 888 2126 026 WARNING Disconnect primary power prior to servicing ...

Page 219: ... 100W A10R03 A10R04 4 0 AlOXFl A10XF2 402 0177 000 FUSE BLOCK 2 POLE 2 0 Al2Al 992 5875 001 KEYBOARD DISPLAY BD 1 0 A17DS1 A17DS2 396 0183 000 LAMP 14V 08A 382 A17DS3 Al7DS4 A17DS5 Al7DS6 6 0 Al8El 560 0044 000 SPARK GAP 1500V 1 0 A19Al 992 5887 001 H V FILTER BD 1 0 Al9A4 992 5871 001 PDM PWR FILTER BD 1 0 Al9CR1 Al9CR2 384 0705 000 RECT 80A 1000V PIV Al9CR3 Al9CR4 4 0 A19Cl Al9C2 524 0178 000 CA...

Page 220: ... 1019 000 917 0914 003 614 0681 000 614 0059 000 fil4 0165 000 DESCRIPTION RES 4750 OHM 1 4W 1 RES 130K OHM 2W 1 RES 500 OHM 200W SW MICRO BZ2RQ1A2 APPEARS ON HIGHER LEVEL XMFR POWER FUSE BLOCK 1 POLE CIRCUIT BREAKER 10A RECT 100PIV 27A MDA 990 2 ZENER 1N2974B lOV CAP 76 000UF 40WVDC PILOT LIGHT AMBER FUSE SLO CART 2A 125 250V VARISTOR 95ACRMS 20J RES 2 0K OHM 2W 5 RES ADJ 50 OHM SOW RESISTOR 50 O...

Page 221: ... flA19S6 IIA19S6A IIE40 5 0 flA19Cl IIA19C2 358 2555 000 BUSHING FLANGED 375 ID 2 0 358 2588 000 FLAT CABLE MOUNT 5 358 2589 000 FLAT CABLE MOUNT 5 358 2739 000 PLASTIC CAP 5 8 24 1 fflN2974B 386 0015 000 ZENER 1N2974B 10V 1 ffA17S5 flA17S6 406 0417 000 LENS WHITE 3 4 SQ 2 0 IIA26Ll IIA26L1A 410 0013 000 INS ROUND NS5W 0216 2 0 IIPS 410 0014 000 INS ROUND NS5W 0220 2 424 0410 000 GROMMET 1 38 MTG ...

Page 222: ... 817 0914 115 STRAP A26Ll TO A26Al 1 0 817 0914 139 STRAP A21L4 TO A21C3 1 817 0914 159 PLUNGER SWITCH 1 0 817 0914 171 CONTACT CAB GRD 2 817 0914 189 STRAP A21C3 TO 14 1 IIA21C2 817 0914 191 STANDOFF INSULATED 2 817 0914 193 STRAP A21C2 1 817 0914 227 STRAP A21L4 INTERCONNECT 1 817 0914 238 STRIP PROTECTION 1 829 8305 001 LABEL SX 1 COMPONENT 1 0 829 8305 029 COVER BOTTOM 1 0 829 8305 063 STRAP S...

Page 223: ...5695 023 939 5695 049 939 5695 075 939 5695 111 DESCRIPTION ROD GND PALLET SHIPPING BRACKET CAB GRD CLIP GRD ROD MTG SHIELD PWR SUPPLY BRKT SHIELD SUPPORT END SHIELD HEAT SHIM DWR SLIDE TUBE A21L5 TO A21L4 BRACKET H V RECT PLATE H V RECT COVER TERM BO PANEL BLANK 7 RU BEZEL METER PNL HINGE PANEL DRESS SCREEN PANEL HV COVER WIRING DIAG SXl PWR SUP TUBE A21L5 INTERCONNECT WIRING DIAGRAM SIDE RIGHT L...

Page 224: ...0 939 5695 183 CABLE A1Pl A24P3 1 0 943 3655 049 BASE 1 0 943 3655 053 SIDE RACK ENCL 2 0 IIAl 943 3655 069 HEATSINK PA 1 0 IIA5 943 3655 071 HEATSINK IPA MOD 1 0 943 3655 083 DIVIDER DRWR 1 0 943 3655 093 CHASSIS HV CONTACTOR 1 0 943 3655 143 TOP CABINET REAR 1 952 8846 002 BOTTOM CABINET 1 952 8846 045 TOP CABINET FRONT 1 952 8846 049 SHIELD INNER LEFT 1 952 8846 051 SHIELD INNER RIGHT 1 992 588...

Page 225: ...TANDOFF 1 4 20 X 1 3 IIE20 813 5019 047 SPACER 3 4 LG 1 IIE14 IIEI5 IIE21 813 5019 051 STANDOFF 10 32 X 1 1 2 3 IIEI3 IIE34 IIE35 813 5606 019 STUD BRS 10 32 X 1 1 2 IIE39 4 IIE33 813 5606 024 STUD BRS 10 32 X 2 1 4 1 IIA21L01 813 5608 007 STUD BRS 1 4 20 X 3 4 6 IIA21L2 817 0914 153 CLAMP COIL TAPPING 1 IIA21L3 817 0914 183 PLATE TAPPING 1 IIA19Sl 829 8305 179 BRACKET SHORTING SW 1 943 3655 131 S...

Page 226: ...A18 IfA18A IfAl8B IfAl8C lfA25 lfA25A lfA25B IIA25C 17 IIA26L01 813 5605 007 STUD BRS 8 32 X 3 4 lfA26L01A 2 flA20Cl lfA20ClA 813 5606 011 STUD BRS 10 32 X 1 lfA20C2 lfA20C2A IIEl0 lfE20 IIE29 7 lfAlORl lfAlORlA 813 5606 007 STUD BRS 10 32 X 3 4 IIA10R2 lfA10R2A IIA10R3 l A10R3A IIA10R4 lfA10R4A IIA19Sl IIA19S1A flA19S6 lfA19S6A l A39 lfE14 f E15 lfE20 16 7 36 888 2126 026 WARNING Disconnect prima...

Page 227: ...516 0375 000 CAP OlUF 50V 1 0 Cl7 Cl8 Cl9 C20 516 0419 000 CAP 05 UF 500V C21 C22 6 0 C23 C24 500 0837 000 CAP MICA 510PF 500V 5 2 0 C25 C31 516 0453 000 CAP lUF 100V 20 2 0 C33 526 0351 000 CAP 6 8UF 50V 20 1 0 C34 516 0375 000 CAP OlUF 50V 1 0 C35 526 0351 000 CAP 6 8UF 50V 20 1 0 C36 516 0375 000 CAP OlUF 50V 1 0 C37 C38 C39 C40 516 0419 000 CAP 05 UF 500V C41 C42 6 0 C43 C44 500 0837 000 CAP M...

Page 228: ...102 000 RES 100 0 OHM l 2W 5 1 0 R32 540 1147 000 RES 27 0K OHM l 2W 5 1 0 R33 540 1164 000 RES 390 0 OHM 1 2W 5 1 0 R34 540 1117 000 RES 150 0 OHM 1 2W 5 1 0 R35 540 1164 000 RES 390 0 OHM l 2W 5 1 0 R36 540 1117 000 RES 150 0 OHM l 2W 5 1 0 R37 R38 R39 R40 546 0294 000 RES 150 OHM 2 5W 5 4 0 R41 R42 540 0611 000 RES LOK OHM 2W 5 2 0 R43 R44 540 0570 000 RES 20 0 OHM 2W 5 2 0 R45 540 1198 000 RES...

Page 229: ...weredRadio Com Table 7 21 PC BD ASSY PDM AMP 943 3655 039 REF SYMBOL HARRIS PART NO DESCRIPTION QTY UM J4A J4B J4C 612 0904 000 JACK PC MT 3 0 888 2126 026 7 39 WARNING Disconnect primary power prior to servicing ...

Page 230: ... 516 0453 000 CAP lUF 100V 20 1 0 C006 500 0759 000 CAP MICA lOOPF 500V 5 1 0 C007 516 0453 000 CAP lUF 100V 20 1 0 coos 526 0318 000 CAP 10UF 35V 20 1 0 C009 526 0342 000 CAP 2 7UF 35V 10 1 0 C010 516 0453 000 CAP lUF 100V 20 1 0 COll 526 0047 000 CAP 220UF lOV 20 1 0 _ C012 500 0759 000 CAP MICA lOOPF 500V 5 1 0 C013 516 0453 000 CAP lUF 100V 20 1 0 C014 500 0759 000 CAP MICA lOOPF 500V 5 1 0 C0...

Page 231: ... 0929 000 540 0920 000 540 0929 000 540 0936 000 540 1359 000 540 1376 000 540 1386 000 540 1376 000 DESCRIPTION LED RED HEADER 20 PIN PC RIBBON HEADER 26 PIN PC RIBBON HEADER 20 PIN PC RIBBON HEADER 40 PIN PC RIBBON HEADER 26 PIN PC RIBBON HEADER 20 PIN PC RIBBON HEADER 40 PIN PC RIBBON CONN 4 PIN PC MTG RECP 50 051 0000 TRANSISTOR 2N4401 TRANSISTOR 2N4403 TRANSISTOR 2N4401 TRANSISTOR 2N4403 TRAN...

Page 232: ... SPDT TOGGLE 1 0 uoo1 uoo2 uoo3 382 0510 000 IC OPTO ISOL U004 4 0 U005 382 0565 000 IC 74LS138 TTL DECOD 1 0 U006 382 0579 000 IC 8279 1 0 U007 382 0581 000 IC 74LS123 1 0 U008 382 0669 000 IC 74LS367N 1 0 U009 382 0556 000 IC 74LS00N 1 0 U010 U011 382 0125 000 IC SN75453BP 2 0 U012 382 0557 000 IC 74LS02 1 0 U013 382 0125 000 IC SN75453BP 1 0 U014 382 0558 000 IC 74LS04N TTL INV 1 0 U015 382 056...

Page 233: ...0 IC P8282 1 0 U047 U048 U049 382 0569 000 IC 8212 3 0 U050 U051 382 0721 000 IC MC14504BCP 2 0 U052 382 0565 000 IC 74LS138 TTL DECOD 1 0 U053 U054 382 0569 000 IC 8212 2 0 U055 382 0363 000 IC 74S74 1 0 U056 U057 382 0428 000 IC LM358 2 0 U058 U059 U060 382 0523 000 IC MC14066BCPDS U061 4 0 XU019 XU024 404 0682 000 SOCKET IC 24 CONT XU029 XU030 XU047 XU048 XU049 XU053 XU054 9 0 888 2126 026 7 43...

Page 234: ...PC RIBBON 1 0 J3 610 0840 000 CONN 4 PIN PC MTG 1 0 J4 J5 J6 610 0787 000 HEADER STRAIGHT 6 POS 3 0 P4A P4B P5A P5B 612 0954 000 JUMPER MINI FEMALE P6A P6B 6 0 Ql Q2 380 0126 000 TRANSISTOR 2N4403 2 0 Rl 540 0946 000 RES 27 0K OHM l 4W 5 1 0 R2 R3 R4 540 0912 000 RES LOK OHM 1 4W 5 3 0 RS 540 1134 000 RES 33 0 OHM 1 2W 5 1 0 R6 540 1161 000 RES 27 0 OHM 1 2W 5 1 0 R7 540 0912 000 RES 1 0K OHM l 4W...

Page 235: ...D 2 0 Ul2 382 0712 000 IC 5101 1 0 U13 382 0626 000 IC 4093B 14093B 1 0 Ul4 382 0581 000 IC 741S123 1 0 U15 382 0561 000 IC 74LS74 1 0 Ul6 U17 382 0640 000 IC 8251 2 0 U18 382 0292 000 IC 75189 1489 1 0 Ul9 382 0291 000 IC 75188 1488 1 0 XU4 XU5 XU6 XU7 404 0682 000 SOCKET IC 24 CONT XU8 5 0 Yl 444 2694 000 CRYSTAL 4 992MHz 1 0 888 2126 026 7 45 WARNING Disconnect primary power prior to servicing ...

Page 236: ...20 2 0 C020 500 0787 000 CAP 200PF 500V 5 1 0 con 500 0838 000 CAP MICA 560PF 300V 5 1 0 C022 500 0827 000 CAP MICA 130PF 500V 5 1 0 C023 C024 516 0453 000 CAP lUF 100V 20 2 0 C025 526 0049 000 CAP 6 8UF 35V 20 1 0 C026 500 0832 000 CAP MICA 360PF 500V 5 1 0 C027 526 0049 000 CAP 6 8UF 35V 20 1 0 C028 C029 516 0453 000 CAP lUF 100V 20 2 0 C030 500 0819 000 CAP MICA 51PF 500V 5 1 0 C031 C033 516 04...

Page 237: ...0 0936 000 550 0961 000 540 0936 000 540 1102 000 540 1356 000 DESCRIPTION CAP 300PF 500V 5 CAP lUF 100V 20 CAP 0 47UF 100V 20 CAP MICA 24UUF 500V CAP lUF 100V 20 CAP 2 7UF 35V 10 CAP lUF 100V 20 CAP MICA 500 PF 500V CAP 2 7UF 35V 10 CAP lUF lOOV 20 CAP 2 7UF 35V 10 CAP lUF 100V 20 CAP MICA lOOPF 500V 5 CAP MICA lOOOPF 100V 5 CAP 47 UF 35V 20 CAP 33UF 35V 20 CAP 47 UF 35V 20 CAP 33UF 35V 20 CAP 0 ...

Page 238: ...0868 000 382 0460 000 382 0359 000 382 0360 000 404 0674 000 DESCRIPTION RES NETWORK 22K OHM 2 RES 100 0 OHM l 2W 5 RES 9 lK OHM l 4W 5 POT 100K OHM l 2W 10 RES 10 0K OHM 1 4W 5 RES 100 0 OHM l 2W 5 RES 20 0K OHM 1 4W 5 RES l OK OHM 1 4W 5 POT 500K OHM l 2W 10 RES l OK OHM l 4W 5 POT 200K OHM 1 2W 10 RES 10 0K OHM 1 2W 5 RES 30 0K OHM l 2W 5 RES 20 0K OHM l 2W 5 RES 1 0K OHM l 4W 5 RES 100 0K OHM ...

Page 239: ...u008 IIU013 lu014 IIU014 IIU014 HARRIS PART NO 402 0129 000 404 0250 000 404 0513 000 410 0335 000 410 0344 000 DESCRIPTION CLIP FUSE HEAT SINK FOR T0 5 CASE HEAT SINK PAl lCB INSULATOR SCREW INSULATOR KAPTON 888 2126 026 WARNING Disconnect primary power prior to servicing QTY 4 2 2 1 1 UM 7 49 ...

Page 240: ...Jl Sl S2 S3 S4 S5 S6 Table 7 25 SWITCH BOARD 992 5883 001 HARRIS PART NO 610 0825 000 598 0394 000 DESCRIPTION HEADER 20 PIN PC RIBBON SWITCH BASE SPST NO 7 50 888 2126 026 WARNING Disconnect primary power prior to servicing QTY 1 0 6 0 UM ...

Page 241: ...NCY DETERMINED PART 1 0 C012 C013 500 0903 000 CAP 2700PF 500V 5 2 0 El 000 0000 002 APPEARS ON HIGHER LEVEL 1 0 Jl 610 0830 000 HEADER 10 PIN PC RIBBON 1 0 J4 620 1677 000 RECEPTACLE PANEL BNC 1 0 L001 L002 494 0198 000 CHOKE RF lOMH 2 0 P2 P3 610 0679 000 PLUG SHORTING 2 0 R001 R002 540 1183 000 RES 5 6K OHM l 2W 5 2 0 R003 540 0589 000 RES 120 0 OHM 2W 5 1 0 R004 540 0588 000 RES 110 0 OHM 2W 5...

Page 242: ... PF 500V 5 1 0 C31A 516 0453 000 CAP lUF 100V 20 1 0 C31F 508 0404 000 CAP 15UF 100V 10 1 0 C32A 516 0453 000 CAP lUF 100V 20 1 0 C32F 508 0404 000 CAP 15UF 100V 10 1 0 C33F 500 0878 000 CAP 1500 PF 500V 5 1 0 C41A 516 0453 000 CAP lUF 100V 20 1 0 C41F 508 0404 000 CAP 15UF 100V 10 1 0 C42A 516 0453 000 CAP lUF 100V 20 1 0 C42F 508 0404 000 CAP 15UF 100V 10 1 0 C43F 500 0878 000 CAP 1500 PF 500V 5...

Page 243: ... CHOKE R F MOLDED 33 UHY 1 0 L52F 494 0218 000 CHOKE WIDE BAND 1 0 L61F 494 0438 000 CHOKE R F MOLDED 33 UHY 1 0 L62F 494 0218 000 CHOKE WIDE BAND 1 0 L71F 494 0438 000 CHOKE R F MOLDED 33 UHY 1 0 L72F 494 0218 000 CHOKE WIDE BAND 1 0 L81F 494 0438 000 CHOKE R F MOLDED 33 UHY 1 0 L82F 494 0218 000 CHOKE WIDE BAND 1 0 L91F 494 0438 000 CHOKE R F MOLDED 33 UHY 1 0 L92F 494 0218 000 CHOKE WIDE BAND 1...

Page 244: ...B 516 0453 000 CAP lUF 100V 20 1 0 C031C 526 0342 000 CAP 2 7UF 35V 10 1 0 C031D 516 0081 000 CAP DISC OlUF lKV 20 1 0 C031H 506 0246 000 CAP 47UF 63V 5 1 0 C031J 508 0416 000 CAP 068 UF 50V 5 1 0 C032H C032J 516 0453 000 CAP lUF lOOV 20 2 0 C033H 508 0378 000 CAP 22 UF 100V 10 1 0 C033J 522 0391 000 CAP lOOOUF 16V 1 0 C040 C041 500 0854 000 CAP 210 lOOOPF 2 0 C041B 516 0453 000 CAP lUF 100V 20 1 ...

Page 245: ...00 494 0384 000 494 0441 000 494 0218 000 494 0384 000 494 0440 000 494 0218 000 494 0189 000 DESCRIPTION CAP 8200PF 100V 5 CAP lUF 100V 20 CAP 2 7UF 35V 10 CAP DISC OlUF 1KV 20 CAP lUF lOOV 20 CAP DISC OlUF lKV 20 CAP lUF 100V 20 CAP DISC OlUF KV 20 CAP lUF 100V 20 CAP DISC OlUF lKV 20 CAP lUF 100V 20 CAP DISC OlUF lKV 20 CAP lUF 100V 20 CAP DISC OlUF lKV 20 CAP lUF 100V 20 CAP DISC OlUF lKV 20 C...

Page 246: ...2B 540 1112 000 RES 510 0 OHM l 2W 5 2 0 R022C 540 0844 000 RES 6 2 OHM l 2W 5 1 0 R022D R031B 540 1112 000 RES 510 0 OHM 1 2W 5 2 0 R031C 540 0844 000 RES 6 2 OHM 1 2W 5 1 0 R031D R032B 540 1112 000 RES 510 0 OHM 1 2W 5 2 0 R032C 540 0844 000 RES 6 2 OHM l 2W 5 1 0 R032D R041B 540 1112 000 RES 510 0 OHM l 2W 5 2 0 R041C 540 0844 000 RES 6 2 OHM l 2W 5 1 0 R041D R042B 540 1112 000 RES 510 0 OHM 1 ...

Page 247: ...R292B soo1 soo2 soo3 IIL011J L012J IIL021J IIL022J IIL031J flL032J IIL011J L012J lfL021J IIL022J IL031J IIL032J HARRIS PART NO DESCRIPTION 540 1112 000 RES 510 0 OHM 1 2W 5 540 1151 000 RES 10 0 OHM 1 2W 5 540 1112 000 RES 510 0 OHM 1 2W 5 604 0885 000 SWITCH MINI DIP ROCKER 357 0056 000 NUT HEX 4 40 NYLON WHITE 357 0077 000 SCREW NYLON 4 40 X 1 448 0734 000 839 5695 340 843 3655 202 CAPTIVE PNL F...

Page 248: ...05 085 929 8305 086 929 8305 085 929 8305 086 929 8305 085 548 0825 000 DESCRIPTION CAP 15 UF 400WVDC 5 CAP 2 UF 400VDC 10 CAP 15 UF 400WVDC 5 CAP 2 UF 400VDC 10 CAP 15 UF 400WVDC 5 CAP 2 UF 400VDC 10 CAP 15 UF 400WVDC 5 CAP 2 UF 400VDC 10 JACK BANANA BRASS COIL ASSY 37TURNS COIL ASSY 36 TURN COIL ASSY 37TURNS COIL ASSY 36 TURN COIL ASSY 37TURNS COIL ASSY 36 TURN COIL ASSY 37TURNS COIL ASSY 36 TUR...

Page 249: ... DS8 DS9 DS10 DS11 DS12 DS13 DS14 DS15 DS16 16 0 Jl 610 0826 000 HEADER 26 PIN PC RIBBON 1 0 Rl R2 R3 540 0912 000 RES LOK OHM l 4W 5 3 0 S1 604 0948 000 KEYBOARD 12 POS X Y 1 0 Ul 382 0094 000 IC 7445 1 0 U2 382 0563 000 IC 741S154 1 0 XDS1 XDS2 XDS3 404 0675 000 SOCKET IC 16 CONT XDS4 XDS5 XDS6 XDS7 XDS8 XDS9 XDSlO XDSll XDS12 XDS13 XDS14 XDS15 XDS16 16 0 610 0837 000 JUMPER FLEX 7 C 2 LG 1 0 88...

Page 250: ...Al9A1Fl Al9AlF2 398 0433 000 FUSE 1 TIME 6A 250V A19AlF3 A19AlF4 Al9AlF5 Al9A2Fl A19A2F2 A19A2F3 A19A2F4 Al9A2F5 10 0 llc1 llc1A llc2 300 1575 000 SCREW 10 32 X 3 8 IIC2A llc3 IIC3A IIC4 ffc4A lfc5 IIC5A 10 0 308 0007 000 10 FLAT WASH ER BRASS 10 0 llcl lfclA lfc2 354 0386 000 TERM LOCKING 10 RING IIC2A lfc3 IIC3A llc4 f C4A lies IICSA 10 0 7 60 888 2126 026 WARNING Disconnect primary power prior ...

Page 251: ...adio Com Table 7 32 IPA PWR SPLITTER BD 992 5889 001 REF SYMBOL HARRIS PART NO DESCRIPTION 610 0873 000 HEADER KIT 20 PIN EJECT QTY 2 0 UM J001 J002 888 2126 026 7 61 WARNING Di connoct primary povver prior to ervicing ...

Page 252: ...RIS PART NO 384 0686 000 384 0751 000 508 0539 000 516 0081 000 612 0301 000 494 0395 000 817 0914 021 DESCRIPTION DIODE DSR3400X 400V PIV DIODE UES1306 CAP 2 UF 400VDC 10 CAP DISC OlUF lKV 20 JACK BANANA BRASS CHOKE 40UH 2 AMP SPACER 7 62 888 2126 026 WARNING D isconnect primary power prior to servicing QTY 2 0 2 0 1 0 1 0 1 0 2 0 2 UM ...

Page 253: ...FT 252 0210 000 WIRE 8 AWG STRD BLK 30 0 FT 354 0001 000 TERM LUG RED RING 6 16 0 354 0008 000 TERM LUG BLUE RING 6 4 0 354 0023 000 TERM LUG YEL RING 6 2 0 354 0703 000 TERM PRESSURE 8 RING 14 354 0289 000 LUG 25 RING D71 3 0 354 0324 000 LUG 10 RING 2 0 354 0010 000 LUG BLUE RING 10 4 0 296 0263 000 TUBG SHRINKABLE 375 1 6 FT 354 0260 000 LUG 6 RING SOLDERLES 2 0 817 0914 079 RUNNING LIST SX 1 1...

Page 254: ...N BANANA RED PLUG NYLON BANANA GREEN PLUG NYLON BANANA WHITE PLUG NYLON BANANA RED PLUG NYLON BANANA BLACK PLUG NYLON BANANA GREEN PLUG BNC UG 88 U RECEPTACLE 8 CKT PLUG BNC UG 88 U CONN 12 CKT RECEPTACLE 8 CKT PLUG RT ANGLE UG1466 U RECEPTACLE 8 CKT HOUSING CONN 4 PIN PLUG NYLON BANANA ORANGE PLUG NYLON BANANA YELLOW PLUG STRAIGHT BNC CRIMP PLUG STRAIGHT BNC CRIMP PLUG NYLON BANANA WHITE PLUG NYL...

Page 255: ...039 829 8305 247 354 0615 000 354 0023 000 354 0311 000 DESCRIPTION TERM SNAP ON TERM 18 24 AWG CRIMP COAX CABLE RG58C U COAX CABLE RG187A U COAX CABLE RG188A U RUNNING LIST SX 1 CABLE LAYOUT CABLE 1 ASSY SX 1 MAIN TERM FOR 22 26 AWG CRIMP TERM LUG YEL RING 6 LUG 10 RING 888 2126 026 WARNING Disconnecc primary power prior IO servicing QTY 4 0 36 9 5 30 6 5 2 1 0 1 0 0 4 6 1 UM FT FT FT 7 65 ...

Page 256: ...AIGHT BNC CRIMP P4A PSA P6A 6 0 P7A P8A 620 1913 000 PLUG STRAIGHT BNC CRIMP 2 0 A27AlP3 620 0566 000 PLUG RT ANGLE UG1466 U 1 0 252 0003 000 WIRE STRD 20AWG WHT 71 5 FT 618 0213 000 COAX CABLE RG188A U 15 8 FT 354 0689 000 TERM 18 24 AWG CRIMP 39 296 0265 000 TUBG SHRINKABLE 1 16 5 FT 296 0253 000 TUBG SHRINKABLE 3 16 1 9 FT 618 0081 000 COAX CABLE RG187A U 29 7 FT 253 0059 000 CABLE AUD 2C 22AWG...

Page 257: ...8 000 354 0023 000 839 5695 215 354 0324 000 354 0323 000 817 0914 079 DESCRIPTION CABLE 3 HV FILTER WIRE STRD lOAWG GRY TERM LUG YEL RING 6 CABLE 113 LAYOUT LUG 10 RING LUG 8 RING SOLDERLES RUNNING LIST SX 1 888 2126 026 WARNING Disconnect primary power prior to servicing QTY 0 17 5 2 0 1 0 3 0 1 0 1 0 UM FT 7 67 ...

Page 258: ...IRE lOAWG 15 KV STRD SPC 1 2 FT 354 0600 000 LUG 3 8 RING 2 0 296 0263 000 TUBG SHRINKABLE 375 1 2 FT 354 0289 000 LUG 25 RING D71 3 354 0311 000 LUG 10 RING 4 0 254 0017 000 WIRE ROPE lOAWG 6 2 FT 296 0019 000 PLASTIC TUBE 4 AWG CLEAR 5 4 FT 354 0703 000 TERM PRESSURE 8 RING 6 252 0003 000 WIRE STRD 20AWG WHT 2 5 FT 252 0004 000 WIRE STRD 18AWG RED 2 FT 354 0001 000 TERM LUG RED RING 6 8 354 0003...

Page 259: ...CAP 250 UF 50V 1 0 C019 516 0453 000 CAP lUF 100V 20 1 0 C020 522 0523 000 CAP 470UF 16V 1 0 C021 508 0540 000 CAP 2UF lOOVDC 1 0 C022 516 0453 000 CAP lUF 100V 20 1 0 C023 506 0239 000 CAP 022UF 63V 5 1 0 C024 500 0844 000 CAP MICA lOOOPF lOOV 5 1 0 C025 516 0453 000 CAP lUF 100V 20 1 0 C026 526 0351 000 CAP 6 8UF 50V 20 1 0 C027 C028 516 0453 000 CAP lUF 100V 20 2 0 C029 526 0318 000 CAP lOUF 35...

Page 260: ...R029 540 1356 000 RES NETWORK 10K OHM 2 2 0 R032 540 1201 000 RES 910 0 OHM 1 2W 5 1 0 R033 540 1111 000 RES 10 0K OHM 1 2W 5 1 0 R034 540 1116 000 RES 1 0K OHM 1 2W 5 1 0 R040 540 1111 000 RES IO OK OHM 1 2W 5 1 0 R042 R043 548 0394 000 RES 5110 OHM l 4W 1 2 0 R044 540 1145 000 RES 6 8K OHM 1 2W 5 1 0 R045 548 0313 000 RES 4990 OHM 1 4W 1 1 0 R046 548 1394 000 RES 3 92K OHM 1 4W 1 0 R048 R049 540...

Page 261: ...t 2 of 4 8 8 Schematic Status Multimeter Sheet 3 of 4 8 8 Schematic Status Multimeter Sheet 4 of 4 8 9 Schematic PDM Generator Board Sheet 1 of 2 8 9 Schematic PDM Generator Board Sheet 2 of 2 8 10 Schematic PDM Ampli fier 8 11 Schematic lkW PDM Filter 8 12 Schematic IPA Board 888 2126 024 DRAWING NO PAGE 839 5695 329 8 3 8 4 839 5695 329 8 5 8 6 839 5695 247 8 7 8 8 839 5695 327 8 9 8 10 839 5695...

Page 262: ...Running Sheets Sheet 9 of 10 8 20 SX 1 Running Sheets Sheet 10 of 10 8 20 DELETED 8 21 Optional Frequency Synthesizer 8 22 Block Diagram SX 1 8 23 Simplified HV Power Supply Diagram 8 24 Simplified LV Power Supply Diagram 8 25 Simplified Control Circuit Diagram 8 2 888 2126 028 DRAWING NO PAGE 839 5695 241 8 37 8 38 839 5695 241 8 39 8 40 839 5695 264 8 41 8 42 839 5695 119 8 43 8 44 839 5695 340 ...

Page 263: ...A24PIH A24Pll 20 26 26 Al2P9 I J 9 I Al2P9 26 1 lJ9 26 20 Al2PIO I t tJI0 1 od o A15PH2 Jl3 I Al6P2 I 65 Jl3 2 JI I Jl 20 J2 I J2 IO J2 II J2 20 J3 I J3 IO J3 II J3 20 J4 I J4 IO J4 II J4 20 A12P7 I 1 4 0 _JH J2 I PIO I Al5Pl 9 501 Jl3 3 Al5PHI 59 Jl3 4 J5 I J5 IO J5 II J5 20 20A6PH A6PHO A7PH A7PHO A12P7 40 Jl 40 A13P3 2 201 Al3P3 I 200 Al2Pl3 I 204 Al2Pl3 3 205 J3 I J3 2 J3 3 J3 4 Al5 J2 26 PI0 ...

Page 264: ... 3 r11 AIOAIE23 J3 4 r12 AIOAIE43 J3 5 r76 TSl 9 J3 6 r1sREO l E39 j _5 J2 I l 29 TB2 9 J2 2 31 TB2 8 J2 3 30 TB2 6 J2 4 r2s A23TBl 18 __ _ J2 5 r J2 6 r28 TB2 II J2 1 1 21 m J2 8 27 TB2 10 J2 9 J2 10 19 A20CI PCS 1 1 J2 11 26 A24Pl2 7 J2 12 Jl 20 A27AI PHASE ANGLE DETECTOR BOARD 992 5882 001 SCHEM 839 5695 264 TO SHEET I JI TSZ 1 220 J2 TS3 1 221 J3 A12Pl5 223 Al AIAI R 0021 2TgmD 0 8 0 39 5695 2...

Page 265: ...5P2 8 27 A25P2 6 28 A23 TBl 4 225 224 2A A25P2 IO 19 5ow 12 107 SLOW BLOW e r AC 1 I I I A20CBI I I A25P3 5 TSl 9 0 0 A25P3 6 E39 TB2 4 I TB2 5 2 3 TB2 13 L L I 0 A20DSI N A E D 4 T82 12 TB2 12 46 A20TI I A20RVI I I I I I I I Ac t_________ 8 A25P3 7 TSl 5 RE A25P2 IO A20CI POS A25P3 8 TSl 4 BL 1 A5P3 I 17 1 A24Pl2 4 20 PA BOS AIP3 A24Pl2 I A20CI POS 22 RFI BO A24P12 4 A20C2 NEG 20 A5P3 I A20C2 NEG...

Page 266: ...1 2 INDUCTANCE IS IN UH 1 s rmTii ift t 1 bED Rl6 IOK l 4W R7 240 f Rl8 IOK l 4 W C2 05 R20 IOK l 4W PA VOLTS ZERO PA CURRENT METERING AMPLIFIER R8 240 Rls h756 C3 01 RII 240 C4 05 q12 J5 r 756 C5 01 C29 10 15 1 5 GND C6 47 R29 t IOK 4 R29 IOK II 3 14 Jl 6 Jl 8 Jt 10 Jt 12 Jt 14 Jt 16 Jt 18 Jl 20 6 REMOVE ALL POWER BEFORE DISCONNECTING JI OR J2 R24 IOK R25 9 IK Jt 22 JJ 24 Jl 26 l V 15V 15 TO METE...

Page 267: ...I 06f 8 rl8 E 0 7 9 so JH I O U2 08 10 o9 f II__ 010 13 1 011 _14 1 1 01 2 l 15 ___ 1 1 23 A SI Jl 9 S2 Jl 7 013 16 1 l 4 014 rl7 I S3 Jl 5 ENABLE Jl 2 DISPLAY SCAN J2 JH9 A Jl 23 1L Ji n J H 5 Jl 21 JH7 6 U2 74LSl54 5 UI MC7445P BL 4 OSI THRU DSl6 T IL 308 3 RES ISTORS ARE IK I 4 WATT 5 2 CAPAC I TANCE IS IN UF I RES ISTANCE IS IN OHMS UNLESS OTHERWISE NOTED 5 Ji 16 Jl 18 Jl 20 Jl 22 Jl 24 Jl 26 ...

Page 268: ...00 00 00 00 I DSI DS2 DS3 DS4 DS5 OS6 2 r 4 r 4 2 Al7 SWITCH PANEL C JI 3 15 JI 7 LOWER JI II RA ISE Jl 15 OFF FAULT Jl 19 HIGH Jl 18 MEDIUM Jl 14 LOW JI I 15 JI 5 LOWER JI 9 RAISE Jl 13 OFF FAULT Jl 17 HIGH JI 20 MEDIUM Jl 16 LOW FIGURE 8 5 SCHEMATIC SWITCH BOARD 839 5695 057 8 13 8 14 ...

Page 269: ...7 ourl 10 25 VOLTS leis r I R6 R26I IO I 270 __ Cl 7 OUTPUT O LEVEL Cl5 Cl2 R27 F lt _QL 2 7 5K 1 C9 r pl rl 11 P CIO 0 22 H I r l _cd 1oi 1 J w c 03 c U2 R24 1 Cl4 I 21 6 3 7 33 1 I 1 w lc13 910PF 7 C PUSH PULL C 0 4 OUTPUT LEVEL 2 E SHIFTER m lE211 5V TO 15V Tl 5 r 1 6 INDUCTANCE IS IN UH 5 CAPACITANCE IS IN UF 4 RESISTANCE IS IN OHMS l 2 WATT 5 JUMPER I TO 3 FOR INTERNAL USE I TO 2 FOR EXTERNAL...

Page 270: ... Ul3 4093B U14 74L S5l23 U15 74LS74 Ul6 Ul7 825IA Ul8 MCl489 Ul9 MCl488 3 CAPACITORS ARE O IUF 2 CAPACITANCE I S IN UF I ALL RESISTORS ARE IN OHMS I 4 WATT 5 UNLESS OTHERWISE NOTED U9 3 BAUD I 5 4 AD6 A 7 ROM PSO PSI PS2 PS3 PS4 Rl7 6 2K 5 R S 5 5 ADO 0 0 11 13 5 ROM C26 J2 9 J2 I J2 5 ROM ROM 5 1 4 w 1 2 w CR3 ADO ADI SID 5 CRB IN9l4 CR7 IN9l4 CR6 IN9l4 ISV IN400I CR9 J 3 3 J2 3 Cl9 r J2 7 IN400I...

Page 271: ... i R35 I IOK 8 2 1 TO SH3 TO SH3 R35 I IOK 10 R38 1 IOK t 81 Jl2 I 62 J7 I At Jl2 3 A2 J7 3 2 5 I R35 IOK 9 ROI Jl2 5 5 R38 IOK 9 READ WRITE SELECTION RD2 J7 5 WAIT STATE U41 GENERAT ION 5V R47 5 IK Jl2 9 6 J7 9 BUS ARBITRATION LOGIC R49 100 RO JS I RI J8 3 J8 25 R 2 6 R4 IK U59 5 6 12 13 6 10 J8 II J8 9 J8 7 J8 5 U20 13 5 6 12 SH4 U21 13 5 6 12 SH4 U22 13 5 6 12 SH4 U23 13 5 6 12 SH4 5i t6 12 1 3...

Page 272: ...U44 4 TO SH3 U45 7 15 J9 I J9 2 I 15 5 MUX AND SCALER OATA LATCHES 5 TO U49 6 SH3 U49 4 5 5 15 5 15 I 13 6 15 ABB2 A 3 ABB4J TO SH4 FWD POWER BUFFER REFL POWER BUFFER J3 i J3 3 Et 3 J9 15 17 J9 19 1 J3 5 1 J3 7 I U25 U28 U34 C04051BE U29 U30 8212 U31 U33 MCl4504BCP U35 A07525 U36 74LS138 U37 LM308AH U38 A0584JH U39 74Cl4 U40 AD7550B0 U56 U57 LM358 CRl2 ICTE 5 CRl3 IN4 733A CRl4 CRl6 IN914 CRl5 IN4...

Page 273: ...ATUS LATCH 5 5 c Rf TO SHI TO SH 2 rol U39 IO 5 15 5 7 9 II 14 TTL CMOS LOGIC TRANSLATION 5 15 032 034 STATUS ANO MULTIMETER Al2 15 L 5 TO SH2 J2 t J2 25 J2 23 J2 21 J2 t9 J2 t7 J2 t5 J2 4 J2 6 8 J2 IO 12 J2 14 16 J2 18 20 J2 22 24 J2 26 J2 t3 J2 tl J2 9 J2 7 J2 5 J2 3 J9 t2 J9 t0 U39 9 H2 J9 21 J9 23 J9 25 TO SH4 A ABA2 ABA3 ABA4 U52 viiii 4 l l n TO SHI UIS II A BUS ADORES OECODER 5 CS3 0 AO 3 S...

Page 274: ...Jl2 I6 Jl2 I8 Jl2 20 J7 22 Jl2 22 J7 24 Jl2 24 J7 26 Jl2 26 J7 28 Jl2 28 J7 30 Jl2 30 J7 32 1 J12 32 1 J7 34 Jl2 34 J7 36 Jl2 36 J7 38 Jl2 38 J7 40 Jl2 40 I Ul9 U24 8212 U20 U23 MC14066 U58 U6I MC14066 ncao D881 3 nooo 10 DBB3 9 5 I 14 U58 7 5 14 ____Q L t lt n RR 4 5 0885 0B87 II 8 087 7 PROCESSOR 2 ISOLATOR 5 DBA7 I i DBAn 6 DBAI Q U60 t r 5 14 n A OBA 0 4 10 BA3 Q u U61 I DA5 4 DA II DA4 8 OA3 ...

Page 275: ... JI II BESSEL R31 SI IOK R33 IOK C34 rlOOPF R32 IOK J2 r J2 J l AUX IN OUT 10 Rl9 100 8 15 m l 4W R36 IK l 4W MAXIMUM POWER OUTPUT l 4W AOJUST tK C31 15 r R96 18K l 4W CRl5 Rg I s IN 2W 4 CRl4r35V CRIB f2 R67 51 5 2W c r7 C28 r lv r T 1H CRl6 T 1ii CRl9 J J C29 15 15 15 DIGITALLY CONTROLLED POTENTIOMETER DC AUDIO CII rl D BALANCE ADJ Cl2 r 15 Rl5 IOK l 4W 15 l 4W 17 U3 4 5 6 7 8 9 0 11 12 3 4 5 16...

Page 276: ...TAL OSCILLATOR 2 0 1 02 04 2N4403 03 2N4401 I CR7 CR8 CR9 CRIO CRII CRl2 IN914 en rlOOOPF l5 C33 15 I R35 7 R52 20K IK l 4W CRl2 5 CRII 01 R56 IOOK CONSTANT CURRENT SOURCES CR7 CR8 3 I I PP 6 KHZ 15V POM ON OV POM KILL r 64 C65 3lvf iii 28S F 15 8 C66 mF UNITY GAIN BUFFERS 15 I 1 TO SH I 15 TO SH I UZ 14 re lv r TH ESHOLD COM ARATORS 15 Ui 14 A J4 l r J4 2 m 12 12 J4 3 rJ4 4 PDM GENERATOR OUTPUTS ...

Page 277: ...C20 30 R20 150 C2I 05 05 2 5W C22 05 CRIG CRl7 CRIS C40 05 R40 150 2 5W C42 05 CR36 CR37 CR38 C37 30 R38 C38 05 150 05 2 5W C39 05 CR32 CR33 CR34 0 1 9 0 20 0 40 0 39 R4I IK 2W R25 CRl9 470K IN9I4 I fcfPF R23 20 2W R26 IOK OUTPUT R45 470K CR39 R46 IOK OUTPUT I Pf 20 2W 6 CRI UES2606 CRII CRI5 CRl9 CR31 CR35 CR39 IN9 I4 5 4 CRl2 CRl3 CRIG CRl7 CR32 CR33 CR36 CR37 IN4005 CRl4 CRIS CR34 CR38 ICTE I5 ...

Page 278: ... h R_ FROM PDM AMP J31 32 C31 P C33 2 0 1 iL FROM POM AMP J41 C41 p 42 5 C43 2 0 El l GND AIO IKW PDM FILTER 1 CAPACITANCE IS IN UF UNLESS OTHERWISE NOTED PHASE 2 R23 150K E23 TO AC CONTROLLER 1 4W 1 E22 TO PA MODULE PHASE 3 R33 150K E33 TO AC CONTROLLER l 4W 1 E32 TO PA MODULE PHASE I R43 150K E43 TO AC CONTROLLER l 4W 1 E42 TO PA MODULE FIGURE 8 11 SCHEMATIC lKW PDM FILTER 839 5695 203 8 33 8 34...

Page 279: ...I T LM335AZ 939 5695 053 _ E6 t E 51 1 i Tl2 939 5695 053 ct I CII 01 Cl2 15 E12 Cl6 15 Cl8 01 13W Cl9 01 Cl7 15 Ell Cl3 01 Cl4 15 rri Rl2 ric CI Ell RII TPII I I TPl2 47K I I 1 __ _ _ _ 2 TII 15 47K IPA TORIOD 992 870 003 THRU 008 ASAI L NUMBER IF WIRES AND TURNS ARE FREQUENCY DETERMINED Jl 3 Jl 4 JI I Jl 2 Jl 9 J3 6 RF DRIVE FROM OSC SYN TO RFI BO TO RFI BO TO RFI 8D Ll FROM IPA SPLITTER RESISTA...

Page 280: ...9 5695 053 I 4 I I Ct 2 I 5 _ J II 1 1 ___ Cl7 Cl4 J 2l i 1 C27 C24 FROM CII Cl2 Cl6 Cl8 Rl5 CRl3 Cl9 047 Cl3 15 C21 C22 C26 C28 R25 CR23 C29 047 C23 15 PDM FI LTER 01 15 047 3000PF 2 UESl306 3000PF T T 01 T T 01 T 15 047 3000PF 2 UES1306 3000 F 01 OUTPUT 2 5W l 2 5W 4 _ _ _ _ 1___ _ 1 __ _ 1 1 c I I I Ell E12 QUAD I __ ffi ______________________ _ _ ______ I 2 _ _ ____ _ c I El2 RII 62M I I 5 4 r...

Page 281: ...___ l _R_3_5 __ C_R_3_3___ C_3_9______ 6l C33 s 4 J 41 C 4 l C4 12 C 4_6__ C_4_8____ l __R _4 _5__ C _R_4_3 ___C_4_9 __ J _____ co 4l7 C43 c 4 I PDM 01 15 047 3000PF 2 UES1306 3000PF 01 01 15 047 3000PF 2 UES1306 3000PF1 T 0 1 FILTER 2 5W I 2 5W I TO SHI c c_____ _____ ___ _ _ __ c 41 TO TO SHI SHI 5 4 3 2 I E31 QUAD 3 E31 ________ 2 I I I I I I R31 62M I 11 1 1 T1 1 T31 OUTPUT TOROID E32 C I E32 ...

Page 282: ...CR3 IN4 740A IO V B C2 250 IKPF T UNE T l T O CARRIER FREQUENCY L2 u C6 ISOPF T l CR I IN914 R4 20 SW cs 0022UF CR2 IN914 RS SIOK 2SW C3 2SO IKPF VOL TAGE ADJUS T J 2 I C4 r __ 270PF lJ J2 2 2 DO NOT REMOVE JI WHILE TRANSMITTER IS OPERATING FIGURE 8 14 SCHEMATIC PHASE ANGLE DETECTOR HOARD 839 5695 264 u LI L2 C4 B C6 ARE FREQUENCY DETERMINED 8 41 8 42 ...

Page 283: ...KW Jl 6 Al8 DIRECTIONAL COUPLER J l 8 J l I0 CI I FREQUENCY DETERMINED It CLIP OUT C4 C5 C6 C7 FOR IKW C5 C6 FOR 2 5KW CLIP OUT R4 R5 R6 R7 FOR IKW R5 R6 FOR 2 5KW FOR TEST TO CALIBRATE IN FWD REFLD MODE DO NOT REMOVE WHILE TRANSM ITTER IS OPPERATING TRANSFORMER TORO ID INDIANA GENERAL CF 123 QI MATERIAL 40 TURNS 20 WIRE 3 CAPAC ITANCE IS IN PF 2 RESISTORS ARE l 2WATT 5 I RES ISTANCE IS IN OHMS UN...

Page 284: ...Ig2e Ig2e fi D2B 28 rnir fu528 162D eIi 20 R262B i o2D eIs2D 510 510 510 510 C23I8 CIID 6 D C24I8 C2ID C3ID Clll8 Cl_rl8 Cl3I8 Cl4I8 Cl5IB Cl_ IB Cl7IB Cl 18 Cl9I8 C20I8 C2118 C22I8 c i5 1 10 Cl3ID Cl4ID C26IB C4ID Cl5ID I 01 I 01 01 I I I I I I 01 01 I 01 01 J l 7 l h 6 2 I 4 3 12 5 8 7 1 0 9 II 13 14 15 16 17 18 1 9 201 7 9 II 1 3 14 15 16 17 18 19 2 6 2 I 4 3 12 5 8 1 0 1 y JT1 JIO J C44lC45lC4...

Page 285: ...20 1g20 R262B g42D 1 2D 510 510 510 510 510 510 10 510 10 I I I C231B CIID Cl21D C241B C2ID C3ID CIIIB Cl21 B Cl31B Cl4IB Cl5IB Cl61B Cl71B Cl8IB Cl9IB C201 B C211B C22IB CIIE C25I8 Cl31D Cl41D C26IB C41D Cl51D I 01 01 I 01 01 I I I I I I I I I I I I 01 I 01 01 I 01 01 J l l 7 l l l 6 2 I 4 3 1 2 5 8 7 10 9 II 13 14 15 16 1 7 18 19 201 7 9 II 13 14 15 16 17 18 9 20 6 2 I 4 3 12 5 8 10 y Y I JIO 1C...

Page 286: ...C IF JS C4 F 1 1 5 C4 F iii 311F L42F iii I 2 I iii cw i 3 1F C5 F i s L52F C5 F I iii I iii iii I I c w C F i s 1 5 3 1F C6 F C7 F 1 5 s L62F C7 jF C6 F 1500PF 1500PF 1500PF 1500PF 1 1 1 l 0 O CZ r 1 T T T T T T REMOTE CONTROL INPU HI A231 Rf MUTE IA23 IEBS Off FAULT RESET IA23 I I I I I LOWER A221 RAISE A22 OFF IA22 I I I I CZ O _ N I a a I I RIIA 91 Rl3A 91 fl A R23A 91 1 31A R33A 91 Cl l A Cl ...

Page 287: ..._I r B 4 I 1 0 0 L J l B l C C 1 o C l i i0 1 R 1 1 lT C C t P 0 0 i Sl C1 0I I r o o i T I l e I l 1 Te 1 l ll _ i _ z t L I I I 2 1 4 I e l r 7 J 17 r t _ T61 i i l _J_ H 4 0 UTl Wl Y RE 1 R E l J b 0 oJl JG US CW E I JiE Rr p c_ c_ l i o l I 1 eo 1 o 1 _ _ o 1 I i c 7 0 II 0 I C C E S OU L HO l t iOl C lfl S P E OOE r iO O Jt R PL E 0 11 t C E S 1O1 E OR C J TO _E I l11 11 1e 1 H _J_ I l 7 I Ll...

Page 288: ...2 A19R13 A19R14 A19R15 A19RV1 A20R1 A20R2 A20RV1 CT NOTES FROM TO M1 M1 M2C M2C M3C M3 M1C M1C M2C M2C M3C M3 TS1 2 TS1 6 TS1 1 TS1 5 TS1 4 TSE8 TS1 9 TS1 6 A19C1 A19C1C A19C3 A19C3C A19C5C A19C5C TS1 2 TS1 7 TSl 2 TS1 6 E30 E31 A20C1C A20C1 A20C2 A20C2C A20T1CSEC A20T1CSEC FIGURE 8 20 SX 1 RUNNING SHEETS EXPLANATION SHEET SHEET 1 OF 10 817 0914 079 8 53 8 54 WARNING Disconnect primary power prior...

Page 289: ...RD C 14 114 AWG STRD r 14 14 AWG STRD C 14 II 14 AWG STRD C 14 18 AWG STRD C 18 f 10 AWG STRD D 10 II12 AWG STRD D 12 f 12 AWG STRD D 12 1 118 AWG STRD C 18 tfl8 AWG STRD r IR 1118 Awr s T on r lR fl 8 A T Df I r rn 1118 AWG STRD C 18 1118 AWG STRD C 18 II18 AWG STRD C 18 118 AWG STRD C 18 1 IQ T DT 1 Q 18 AWG STRD C 18 f 118 AWC STRD C 18 II18 AHG STRD C 18 118 AWG STRil C 18 EQUIPMENT TERMINAL 4...

Page 290: ...STRD C 18 118 AWG STRD C 18 i 18 AWG STRD C 18 1 1R ATJr STRD r lR 18 AWG STRD C 18 ii18 AWG STRD C 18 f 18 AWG STRD C 18 ii 18 AWG STRD C 18 i 18 AWG STRD C 18 1120 AWG STRD C 20 1114 AWG STRD C 14 114 AWG STRD C 14 120 AWG STRD C 20 1120 AWG STRD C 20 l 20 AWG STRD C 20 120 AWG STRD C 20 1120 AWG STRD C 20 I AW STRn r n If EQUIPMENT TERMINAL l A25P2 1 1 A25P2 3 1 A25P2 2 4 Al9K2 COIL A 4 Al9Kl C...

Page 291: ...20 1 A24Pl4 7 1120 AWG STRD C 20 1 M3 1120 AWG STRD C 20 6 AlSPl 11 t 20 AWG STRD C 20 6 AlSPl 9 1120 AWG STRD C 20 6 AlSPl 12 1120 AWG STRD C 20 6 Al2Pl4 1 1120 AWG STRD C 20 6 Al2Pl4 3 f 20 AWG STRD C 20 6 Al6P2 2 120 AWG STRD C 20 6 Al6P2 1 1120 AWG STRD C 20 1 Al0AlE13 120 AWG STRD C 20 1 Al0Al E33 1 20 AWG STRD C 20 1 AlOAlE23 1120 AWG STRD C 20 1 Al0AlE43 120 AWG STRD 2 C SHLD l A25P3 7 1120...

Page 292: ...STRD D 8 4 Al9Kl L2 1 8 AWG STRD D 8 4 Al9Rl 1 lt8 AWG STRD D 8 4 ElO 1 10 AWG STRD D 8 4 KZ Al9Tl SECONDARY 1 8 AWG STRD D 8 5 Rl Al9Tl SECONDARY 18 AWG STRD D 8 5 E35 lflO AWG STRD D 10 3 E39 110 AWG STRD D 10 3 Al9CR1 3 CATH 6 AWG STRD D 6 5 Al9CR4 2 ANODE 116 AWG STRD D 6 5 E35 6 AWG STRD D 6 5 FIGURE 8 20 REV L M L TO EQUIPMENT TERMINAL Al9Kl T2 Al 9Rl 2 Al9Kl L2 A19Kl Tl A1 QKl T2 Al9Tl 240 ...

Page 293: ...M L TO WIRE SIZE AND TYPE CABLE 110 AWG STRD D 10 1 10 AWG STRD D 10 fl10 AWG STRD D 10 1110 AWG STim D 10 IIl O AtJr C 1 R n rn lllfl r r C T Rn n 1 n 10 AWG STRD D 10 1112 AWG STRD C 12 1112 AWG STRn D 12 1 1 I rnr S T Rn n_ 1 I II 2 Al lG STRD D 12 112 AWG STRD D 12 II EQUIPMENT TERMINAL 3 Al9R3 2 5 Al9S6 N 0 1 Al9Cl 1 Al9C2 5 ins 5 Al9R3 l 5 Al9R3 2 1 AlPl l 1 A1 Rf l 1 AlP 11 1 Al0R3 I l A1p ...

Page 294: ...jcABLE NO REV L M L TO WIRE SIZE AND TYPE CABLE 1112 AWG STRD D 12 112 AWG STRD D 12 12 AWG STRD D 12 12 AWG STRD D 12 111 1 1 T STRn n_ 1 tl 2 AWG STRD D 12 ltl2 AWG STRD D 12 1 12 AWG STRD D 12 lt12 AWG STRD D 12 It12 AWG STRD D 12 1112 AWG STRD D 12 Rr 87 RG187 II EQUIPMENT TERMINAL 1 Al OR 2 2 l AlP41 l AlORl 2 l AlOFlA 2 1 AlOFlR 1 Al0F2B 1 1 Al0F2A 1 5 AhP 5 A6P6 l A7P5 1 A7P6 1 11 P 1 l A6P...

Page 295: ...2P3 A22P3 A22P3 P6A P6A E34 CTR SHLD CTR SHLD CTR SHLD CTR SHLD CTR C l lTn CTR SHLD CTR SHLD CTR SHLD CTR SHLD 1 2 4 CTR SHLD RG187 l A6P2 3 1 A6P2 4 RG187 1 A7P2 3 1 A7P2 4 RG58 1 Al8P4 CTR 1 Al8P4 SHLD 1 r1QQ 1 A P C TR 1 A5P2 SHLD RG187 F A 1 p t 8 6 Al5P4 7 RG187 6 Al5P4 1 6 Al N 2 RG187 6 Al5P4 3 6 Al5P4 4 RG187 6 Al5P4 6 6 Al5P4 5 RG188 6 Al6P2 6 6 Al6P2 5 Rn nnN 2 rnNn ATmrn F A l p J A 1 ...

Page 296: ...E CABLE II EQUIPMENT T ERMINAL ii10 15KV SILVER PLATE l A1P3 10 lSKV SILVER PLATE 5 A26Cl 118 STRD D 8 5 A19CR2 CATHODE 118 STRD D 8 5 Al9CR4 CATHODE 117n l l 11 STRn r n 6 A 1 P l 2 1 20 AWG STRD C 20 5 A21L6 1 lf20 AWG STRD C 20 5 A21L6 2 1120 AWG STRD C 20 6 AlJPJ 4 1 20 AWG STRD C 20 6 Al4PJ 2 120 AWG STRD C 20 6 Al4PJ 1 1120 AWG STRD C 20 6 Al 2Pl3 4 il n AtJr C l Rn r n A1 Pl 1 t 20 AWG STRD...

Page 297: ... AWr S T Rn r 1Q 14 AWG STRD C 14 1114 AWG STRD C 14 1114 AWG STRD C 14 Ii14 AWG STRD C 14 120 AWG STRD C 20 120 AWG STRD C 20 1120 AWG STRD C 20 122 BUS BAR RG188 SHLD Rr 188 SHLD RG188 n f 18 AWG STRD C 18 if18 1 hTG STRD C 18 1118 AWG STRD C 18 ii EQUIPMENT TERMINAL 6 Al5Pl 7 CTR 6 AlSPl 8 SHLD 5 A20R5 2 1 A23TB1 20 i A20CR2 CATHODE 5 Al9R20 l 5 Al9R20 2 1 A6A1Pl l A7A1Pl 5 TSl 8 5 TSl 1 5 TSl ...

Page 298: ...I Rfu9 2 IK 2 W l lo 5 f 39 IJw ew c 1 N3904 7E I I I I I I I I I I I I I I I I I I I I I I CR7 MVAMI09 19 IPPF EIAND SELECT SI ____g vco C32 I U4 M Cl6 8 l _ YCO L_ 0 5 C33 L ______________________________ 2 2W J4 FREQUENCY SAMPLE 15V P P r TTL TO 15V LEVEL SHIFTER E13 i Cl8 R54 100 IW i I iW 2 Hf R36 7 91 l 2W J2 6 RF OUTPUT JZ 5 TO IPA J2 2 7 R46 l 2W lif POWER AMP 150 CRII 2W I IN4002 R51 IN u...

Page 299: ...WER SUPPLYl V r METER Al TOROID PA SHUNT JI I J21 J31 J41 MONO OR STEREO L R AUDIO INPUT DAMPER DIODES 1 Al5 JI I J6 E21 1 1 I I I I _J I E41 J5 J2 I PDM 270 90 180 0 J 4 GENERATOR 4 PHASE PDM GEN TRANSFORMER L ESS AIO PDM I F ILTER I _J JG A6 PDM I AMP I _J BALANCED 1 BESSEL 1 0 INPUT FILTER 7 _J A21 Al8 DIR CPLR A21 BP FILTER 1 MOD MONITOR SAMPLE FIGURE 8 22 BLOCK DIAGRAM SX 1 839 5695 333 888 2...

Page 300: ...2 L I 8 ____ _1 1 f 1_ _ 10 _ _ _ _s_ ___ 6 I 40 Al9S3 Al9S4 El3 41 0 41 42 h 206 T T SHLD 260V IE29 182 181 sm o 25 AMP I 25 AMP Al9LI Al9R20 214 A7AIPI 2l2 21 I 2HY 2 215 A6AIPI 1 lc c w 2 PDM PULL UP GND SW REAR DOOR Al9SI 119 0 1 _n 218 TSl 7 u l TSl 9 TSl 6 A25P3 5f 76 o _ _ SUPPLY VOLT SAMPLE FRONT DOOR Al9 S2 120 0 1 SX 2 5 USES 20 AWG SINGLE CONDUCTOR WIRE 2 USED ON SX 2 5 I NOT USED ON SX...

Page 301: ... L 50 60 HZ _ I DENO T ED WIRES USED ON SX 2 5 30V 8 9 A t 2 I 3 1 2 24 A20CI A20RI 7 6K 2K 40WVDC 2W A20R4 30V 22 A24Pl2 I RF OSC RFI PDM GEN PDM AMP 30V 1 9 A25P2 IO 15V AC CONT 16 A5P 3 8 VARIABLE IPA A20R5 50 25W 208 209 A23 TBl 20 209 210 210 CUST INTF 211 IOV IN2974B 10 El3 A20CR2 i 1 11 A20C2 A20R2 7 6K 2K I 40WVDC 2W 30V 30V 17 A5P3 I IPA 20 A24Pl2 4 30V RF I PDM GEN AC CONT FIGURE 8 24 SI...

Page 302: ...OR REMOTE FAULT LOW INDICATOR REMOTE LOW MED INDICATOR REMOTE MED H IGH INDICATOR REMOTE HIGH LOWER INDICATOR REMOTE LOWER RAISE INDICATOR REMOTE RAISE REMOTE CONTROL POM KILL U3 Al5 POM GENERATOR CII Cl2 Cl3 L21 L22 I I I C21 C22 C23 RFI I I_ o o _ J r ENABLE PDM GENERAT R OUTPU RF eoARD ____7 RF SAMPLE 1 N 1 1 Il MOD MONITOR HIGH MED MONITOR Kl MEO LOW MONITOR MEDT LOW 1 SHOWN OE ENERGI ZED OFF ...

Page 303: ...turned unless written approval and a Return Authorization is received from HARRIS CORPORATION Broadcast Group Special shipping instructions and coding will be pro vided 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...

Page 304: ...l air flow through the transmitter is taken in through the back of the unit at the bottom of the cabinet No filter should be in stalled here unless forced air is going to be provided as part of the in stallation A filter will obstruct the normal convection air flow and allow the transmitter to overheat Maximum temperature at the base of the trans mitter should not be more than 50 degrees C The air...

Page 305: ...V V V v V _ v V _ V V L v y y _ I V V L L I I i V V V s L 1 L V 2 3 4 5 6 7 8 9 10 INSTALLATION ALTITUDE THOUSANDS OF FEET __ 2126 33 Figure A 1 Correction Factors To calculate actual reading using the correction factor curve SPsl I Correction Factor SP expected Example Where SPsl Static Pressure at Sea Level SP Corrected Static Pressure Installation Altitude 10 000 f eet Inlet Ai r to Transmitter...

Page 306: ... In addition HARRIS offers as an option design fabrication and installation services to any required level for total integration of the system into a facility A 21 Several specific items should be planned for prior to delivery of the system These items are a Installation of ac power up to the wall mounted Fused Disconnect Box to be supplied with the transmitter and if desired instal lation of ac p...

Page 307: ...pment Lifting Equipment Fork Lift etc Hand Tools Shims 2 by 2 400 lbs 181 kg capacity For opening wooden crates Aluminum assorted thicknesses Hand Operated Hole Punch For adding O 25 hardware holes to 0 020 thick copper ground strap at transmitter ground connection Ring Lug Crimping Tool BNC Tooling For crimping lugs Crimp or solder Table A 2 Equipment Supplied With Transmitter and Listed on Packi...

Page 308: ...ck the following connections to ensure that they are tight High Voltage transformer Al9Tl Low Voltage transformer A20Tl Rectifier Diodes Al9CRl CR4 All Filter Capacitors Al9C5 Al9Cl Al9C2 and back door capacitors Output Network clips insulators and hardware PA Secondary white HV wire behind PA board Al All heatsinks and PC board captive fasteners blade screw driver slots IPA input drive coax white...

Page 309: ...wide copper grounding strap between the grounding connection located at the bottom right rear of the transmitter under the dust filter cover and station earth ground A 34 ELECTRICAL INSTALLATION A 35 POWER REQUIREMENTS The SX 1 is designed to operate from a standard 208 240 Vac single phase 50 to 60 Hz source Thirty ampere service is required Wire the primary of Al9Tl and A20Tl to the 240 11 taps ...

Page 310: ...he output of this second box to transmitter terminal board TBl 5 and TBl 6 using 1112 AWG wire and ensure that there are no jumpers installed between TBl 1 and TBl 5 and TBl 2 and TBl 6 This Fused Disconnect Box should be equipped with 15 amp fuses A 40 CUSTOMER INTERFACE CONNECTIONS A 41 Customer interfacing to the transmitter is accomplished by connecting the appropriate connectors from the Cust...

Page 311: ...ication Remote MED power indication Remote HIGH power indication Remote LOWER power indication Remote RAISE power indication Remote RF FAULT indication Remote MODULATOR FAULT indication Remote READY indication Ground for remote PA CURRENT metering 888 2126 001 COMMENTS Voltage supplied for customer usage in remote switching and indicating applications that follow Station needs to provide an indica...

Page 312: ...rWarD PoWeR metering NOTE COMMENTS Remote inputs are optically isloated and require a voltage to be applied to the terminal pairs listed A 10 volt terminal is provided at A23TB1 20 Typically one side of the input termi nals will be bussed t ogether For ex ample tying the even terminals numbers together to 10 volts then requires the remote control unit to only momentarily switch the odd numbered te...

Page 313: ...BS PHASOR OFF PDM KILL control A23TB2 16 A23TB2 17 Remote HIGH POWER INTERLOCK control A23TB1 14 A23TB1 18 FAILSAFE INTERLOCK Terminals NOTE Contactor coil current passes through the Failsafe Interlock terminals A constant closure is needed Opening of the contacts results in de energizing the HV contactor Contacts and wiring connected to these terminals should be rated at 125 VAC 1 amp A24J16 on R...

Page 314: ...f front panel meters A 54 INITIAL TURN ON PROCEDURES A 55 Before i niti al turn on ensure that the following items are checked a Ground strap is properly connected between transmitter and sta tion earth ground b Check for debris hardware in base of transmitter and in AC Panel c AC i nput wiring is properly connected d Transmitter output is properly terminated into a suitable load capable of handli...

Page 315: ...HE POWER SUPPLY WILL BE SHORTED TO GROUND AND MADE SAFE A GROUNDING STICK IS PROVIDED IN THE TRANSMITTER AND SHOULD BE USED TO ASSURE THAT ALL HIGH VOLTAGE HAS BEEN REMOVED UN DER FAULT CONDITIONS BE CAREFUL NOT TO GROUND ANY CONNECTIONS WHICH ARE STILL ENERGIZED THIS WOULD INCLUDE ALL LOW VOLTAGE CIR CUITS IF THE LOW VOLTAGE CIRCUIT BREAKER HAS NOT BEEN SET TO OFF POSITION IF ANY ABNORMALITIES AR...

Page 316: ...emoving ac power grounding transformer taps moving the primary wiring to the next lower in crement then measuring 30 volt supplies to achieve the desired supply voltages A 63 Verify that when the three power on pushbuttons LOW MEDIUM HIGH are depressed they illuminate AC contactors should not be heard energizing at this time A 64 Verify that depressing the OFF pushbutton clears all power on push b...

Page 317: ...ad This monitors the power supply voltage It should be in the range of 200 to 260 This is a fairly broad range due to range of expected ac power line voltages What is important is that the high voltage supply is actually on A 72 Verify that the FAULT indicator is extinguished A 73 Depress the RAISE pushbutton and observe the PAV PAI and PWR meters A 74 Raise the power until the 44 power setting is...

Page 318: ...the transistors This determines the ratio of the PA voltage to the PA current A 78 The TUNING 14 control should affect primarily only the reactive part of the load on the transistors This determines the efficiency of the PA Maximum efficiency should occur when the transistor voltage and current are in phase A 79 It is intended that the maintenance personnel adjust the TUNING and LOADING controls f...

Page 319: ...djustments in power output level should be made with the RAISE and LOWER pushbuttons after the correct high voltage supply voltage is ob tained Compare all readings with the factory test data Report any major discrepancies to the HARRIS Service Department A 87 Switching the REMOTE LOCAL switch Sl on the Status and Multimeter board Al2 to the REMOTE position will enable the remote control circuits ...

Page 320: ...ended to perform general maintenance and troubleshooting on the SX 1 AM TRANSMITTER An oscilloscope with 15 MHz or higher bandwidth A VOM with an ohmmeter battery voltage between 3 and 18 V A low distortion sinewave audio generator A noise distortion meter Digital Logic Probe 888 2126 026 WARNING Disconnect primary power prior to servicing B 1 B 2 ...

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