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Harris 994 8047 001, Technical Manual

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Summary of Contents for 994 8047 001

Page 1: ...e TECHNICAL MANUAL FM 2 5K FM TRANSMITTER 994 8047 001 994 8047 004 M Fi o F1Fas T M No 888 1759 004 0 Copyright HARRIS CORPORATION 1985 All Rights Reserved Printed March 4 1985...

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Page 3: ...27895 Replaced all pages Added Manual Revision History page 003 11 06 84 29204 Replaced the following pages Title Page Manual Revision History Page vi 7 1 7 2 7 11 7 12 004 03 04 85 29376 Replaced the...

Page 4: ......

Page 5: ...owing 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 Halogenate...

Page 6: ...ILS MAKE AIRTIGHT SEAL 4 QUICK FULL BREATHS REMEMBER MOUTH TO MOUTH RESUSCITATION MUST BE COMMENCED AS SOON AS POSSIBLE CIRCULATION DEPRESS STERNUM 1 1 2 TO 2 INCHES APPROX RATE ONE RESCUER OF COMPRES...

Page 7: ...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...

Page 8: ...1 2 7 Installation 2 1 2 9 Cooling Air Requirements 2 1 2 12 Transmitter Placement 2 2 2 16 Component Installation 2 2 2 30 Wiring Connections 2 3 2 37 Initial Checkout 2 4 2 43 Connections to Remote...

Page 9: ...6 Tubes 5 5 5 30 IPA Grid Circuit 5 5 5 32 Fixed Resistors 5 5 5 33 Variable Resistors 5 6 5 34 Transformers 5 6 5 35 Fuses 5 6 5 37 Relays 5 7 5 38 Switches 5 7 5 39 Indicators and Indicator Switches...

Page 10: ...6 7 6 7 Meter Pnl Assy 6 8 6 8 Frnt Pnl Assy 6 9 6 9 PA Enclosure Assy 6 10 6 10 Shelf Assy 6 11 6 11 IPA Assy 6 12 6 12 Pnl Assy 6 13 6 13 Meter Multiplier 6 14 LIST OF ILLUSTRATIONS Lem_ Page 7 1 Bl...

Page 11: ...ith up to two SCA channels Plug in module provisions for operation of a future quadraphonic transmission system are also provided in the FM Exciter 1 7 PHYSICAL DESCRIPTION 1 8 The entire unit includi...

Page 12: ...PA Plate Tuning r IPA Output Loading s Remote Local t Potentiometers 4 for adjustment of PA Plate Current Remote Reading Recycle PA Overload and PA Plate Voltage Remote Reading 1 10 FUNCTIONAL DESCRIP...

Page 13: ...life 1 17 RF Output Power is inductively coupled from the plate lines The amplifier loading is changed by a variable output loading control The rf output to the antenna is fed through a Low Pass Filt...

Page 14: ...teristics and parameters of the FM 2 5K Transmitter 1 27 MECHANICAL ENVIRONMENTAL CHARACTERISTICS 1 28 Table 1 2 lists physical and environmental characteristics of the FM 2 5K Transmitter NOTE Specif...

Page 15: ...NIC SUPPRESSION TUBES USED AM Noise FM Noise Refer to FM Exciter specifications for additional characteristics 197 250V 60 or 50 Hz single phase 115 Vac 60 or 50 Hz single phase 4800 watts approximate...

Page 16: ...pieces Export 1165 pounds 476 73 kg in 4 pieces Domestic 94 6 ft 3 2 68 m3 Export 103 5 ft 3 2 93 m3 Width 29 inches 73 7 cm Depth 33 inches 84 cm Height 78 inches 198 cm 29 inches 73 7 cm 0 C to 45 C...

Page 17: ...eturn are to be included in the request for return Custom equipment or special order equipment is not returnable In those instances where return or exchange of equipment is at the request of the custo...

Page 18: ...ce is provided by the rear door The floor must be capable of supporting a load of approximately 100 pounds per square foot 487 kg m 2 2 16 COMPONENT INSTALLATION 2 17 Tubes capacitors connectors and c...

Page 19: ...press in nuts on the plate lines and tighten securely 2 25 Position the B feed connector on the 5CX1500B tube anode cap and tighten the holding screw Dress the B wire to the right in a smooth radius...

Page 20: ...datory to keep stray rf cur rents to a minimum RF interference usually shows up in one of two ways feedback or high noise in some cases both It should be pointed out that even a small amount of unshie...

Page 21: ...r to the Factory Test Data Sheets supplied with the transmitter and adjust the controls as indicated The transmitter was checked into a 50 ohm resistive load at the Factory Therefore any system with a...

Page 22: ...creen potential and increase the RF Output power Power for the motor 115 Vac is obtained from the single phase primary ac input e PA PLATE VOLTAGE METERING This circuit provides 10 Vdc maximum to oper...

Page 23: ...the 4X150A and 5CX1500A tubes The Filament ON pushbutton switch indicator should illuminate 3 9 The indication of PA or IPA filament voltage is determined by a tog gle switch on the upper front panel...

Page 24: ...indicated it is generally traced to transmission line and or antenna problems 3 20 Because the transmitter was checked into a 50 ohm resistive load any system with a mismatch will probably change the...

Page 25: ...small cover plate located on the front panel It is referred to as symbol number R10 on the schematic 3 27 OPERATION AT OUTPUT POWER BELOW 2500 WATTS 3 28 If specified the transmitter will be tested a...

Page 26: ...ut loading control Retune the plate and grid circuitry Observe the PA 1 G 2 care fully and do not let it exceed 100 mA during tune up 3 31 The PA plate overload adjustment is set for 150 mA to 200 mA...

Page 27: ...r is inductively coupled from the plate lines and the amplifier loading is changed by a variable output loading control Harmonics above the 2nd Harmonic are attenuated by a filter built into the PA en...

Page 28: ...the FM Exciter publication 4 15 POWER SUPPLY The high voltage power supply furnishes 3 3 5 or 4 5k Vdc for the power amplifier The basic configuration of the supply is single phase full wave bridge c...

Page 29: ...gh voltage when the plate current becomes excessive 950 mA at 2 5 kW output g High Voltage Interlock Switch S6A Actuated by the back door Its con acts are in the control circuit of K3 h High Voltage S...

Page 30: ...he output transmission line and a function switch located on the upper front panel 4 29 Calibration of the Power Output meter is accomplished against a known standard at the HARRIS Factory Unless the...

Page 31: ...mance characteristic the transmitter should be monitored using front panel indicators and the results recorded in the transmitter logbook at each shift change or at least once per day 5 9 MAINTENANCE...

Page 32: ...d indiscriminately specific instructions are necessary a Visual inspection is the most important preventive maintenance operation because it determines the necessity for the others Become thoroughly a...

Page 33: ...and keep the equipment operating normally Do not over lubricate g Paint surfaces with the original type of paint use prime coat if necessary when inspection shows rust worn or broken paint film 5 16...

Page 34: ...formance of the blower will be reduced and unbalance will result with a possibility of damage to the blower 5 22 MAINTENANCE OF COMPONENTS 5 23 The following maintenance paragraphs provide information...

Page 35: ...tage slightly higher than that point at which performance appeared to deteriorate A recheck should be made in 12 to 24 hours to make certain that emission is stable 5 28 Initial setting may be approxi...

Page 36: ...nals may cause flash overs Insulating compound or oil around the base of a trans former indicates overheating or leakage c Tighten loose mounting lugs terminals or rivets d Clean with a dry cloth Use...

Page 37: ...normal if a The relay is mounted securely b Connecting leads are not frayed and the insulation is not damaged c Terminal connections are tight and clean d Moving parts travel freely e Spring tension...

Page 38: ...ers loose envelopes loose mounting screws and loose or dirty connections d Tighten loose mounting screws and solder loose connections If connections are dirty or corroded clean with crocus cloth befor...

Page 39: ...s isolate the trouble area to one of the fol lowing with the meters and indicators for each section a Antenna and Feedline b Power Supply and Control Circuits c IPA Section d PA Section e Exciter 5 46...

Page 40: ......

Page 41: ...ery case how ever a substitute part is selected for conformance to overall design specifi cations so that equipment performance is not affected Components that are frequency determined or peculiar to...

Page 42: ...002 6 5 6 5 SCRN MOTOR ASSY 992 2703 001 6 6 6 6 SW PNL ASSY 992 2704 001 6 7 6 7 METER PNL ASSY 992 2705 001 6 8 6 8 FRNT PNL ASSY 992 2706 001 6 9 6 9 PA ENCLOSURE ASSY 992 2707 001 6 10 6 10 SHELF...

Page 43: ...170 000 374 0018 000 994 6871 002 994 7950 001 994 7983 001 DESCRIPTION TUBE 5CX1500B TUBE 4X150A XMTR BASIC FM2 5H3 FM EXCITER MS15 BLANK MODULE 10 REQ LESS 1 MONO 1 SCA41 I SCA67 3 STEREO QTY UM 1 0...

Page 44: ...REF SYMBOL HARRIS PART NO DESCRIPTION QTY UM 374 0018 000 TUBE 4X150A 1 374 0170 000 TUBE 5CX1500B 1 994 6871 002 XMTR BASIC FM2 5H3 1 994 7950 004 BASIC MX 15 FM EXCITER 1 6 4 888 1759 004 WARNING Di...

Page 45: ...LTER ASSY 000 CHOKE FLTR 10HY lA 000 REACTOR FLTR 10HY 000 RES 15 0K OHM 10W 000 RES 40 0K OHM 160W 000 RES 25 0K OHM 20W 001 METER MULTIPLIER MM5 000 RES 1 5K OHM 50W 001 HV INTERLOCK SWITCH 000 TERM...

Page 46: ...SY 992 2703 001 HARRIS PART NO 436 0106 000 542 0084 000 552 0371 000 604 0052 000 DESCRIPTION MOTOR SYN 2RPM RES 3 0K OHM 10W RHEOSTAT 5K OHM 75W SW PRECISION SPNC QTY UM 1 0 1 0 1 0 2 0 888 1759 002...

Page 47: ...RRIS PART NO 396 0182 000 604 0445 000 598 0118 000 598 0119 000 814 2843 001 DESCRIPTION LAMP 2A 6 3V 381 SW PB LESS LENS CAP LENS CAP SW GREEN LENS CAP SW RED WINDOW METER QTY UM 2 0 4 0 2 0 2 0 1 0...

Page 48: ...001 HARRIS PART NO 516 0082 000 632 0575 002 632 0661 000 632 0026 002 632 0662 000 DESCRIPTION CAP DISC 01UF 1KV GMV MTR 0 5000 VDC SCALE METER VSWR POWER MTR 0 1 ADC MULTIMETER QTY UM 4 0 1 0 1 0 1...

Page 49: ...50 0104 000 650 0129 000 DESCRIPTION CAP DISC 01UF 1KV GMV CONTACTOR 4 POLE RELAY DPDT 110VAC METER 0 10 VAC POT 5K OHM 2W 10 POT 15K OHM 2W POT 1K OHM 2W RES 15 0 OHM 25W POT 500 OHM 2W RHEOSTAT 16 O...

Page 50: ...0709 000 0157 000 5241 001 0025 000 0026 000 CAP CAP CAP CAP CAP DESCRIPTION HV 500 UUF 5000V VAR 5 3 102PF HV 100 UUF 5000V FEEDTHRU 1000PF HV 500 UUF 5000V CAP FEEDTHRU 1000PF CAP 200 PF 7500V 10 MO...

Page 51: ...0030 000 0036 000 0208 000 0016 000 0121 000 DESCRIPTION RECTIFIER IN4005 CAP 50 UF 150V CAP 530UF 250V RELAY TIME DELAY 180 SEC RLY 41F 10000 S SIL RELAY TEL AK12670 RELAY TEL AK12175 RES 2 0K OHM 2W...

Page 52: ...00 915 1150 001 DESCRIPTION ZENER 1N3015A 200V CAP 1000 PF 500V CAP 1000PF 500V 20 CAP FEEDTHRU 1000PF CAP 1000 PF 600V CAP FEEDTHRU 1000PF CAP HV 500 UUF 5000V CAP VAR 5 3 102PF RECEPTACLE BNC UG 109...

Page 53: ...8 0056 000 398 0319 000 570 0158 000 402 0074 000 402 0118 000 DESCRIPTION PILOT LIGHT AMBER FUSE SLOW CART 500A 250V FUSE SLOW CART 1 50A 250V FUSE SLOW CART 35A 250V CONTACTOR 4 POLE FUSEHLDR INDICA...

Page 54: ...ON R001 R002 R003 548 0373 000 RES 249K OHM 1 2W 1 R004 R005 R006 R007 R008 R009 R010 R011 R012 R013 R014 R015 R016 R017 R018 R019 R020 838 4432 001 827 6002 001 PRINTED CKT PRINTED CIRCUIT QTY UM 20...

Page 55: ...Title Number Page 7 1 Block Diagram FM 2 5K 815 3522 001 7 3 7 4 7 2 Coarse Plate Tuning Chart FM 2 5K 815 0206 001 7 5 7 6 7 3 Installation Layout FM 2 5K 838 4123 001 7 7 7 8 7 4 2nd Harmonic Filter...

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Page 57: ...OUTPUT ONINEIVM FM EXCITER n STEREO GENERATOR SCA GENERATOR RF OPTIONAL SCREEN GRID IPA 4X150A PLATE VVVV 11 RF PA 5CX1500A CONT 10L GRID SCREEN GlID PLATE 150 VOLT SUPPLY 700 VOLT SUPPLY 1500 VOLT S...

Page 58: ...0...

Page 59: ...EQUENCY RANGE MHz LINE REMOVED 1 2 3 4 5 6 8 10 1 1 87 5 88 1 88 3 88 9 89 1 89 9 90 1 91 7 91 9 93 3 93 5 95 9 96 1 98 9 99 1 101 9 102 1 105 9 106 1 107 1 107 3 107 9 FIGURE 7 2 COARSE PLATE TUNING...

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Page 61: ...EIA LINE KNOCKOUT HOLES Ik1PUT 3 fr DO AND RT 14 01C NPuT C ABINEI BASE KNOCKOUT HOLE coi POSS BLE kt tmPuT ENTRY PARTIAL RIGNI SIM vitw FIGURE 7 3 INSTALLATION LAYOUT FM 2 5K 838 4123 001 7 7 7 8 WAR...

Page 62: ......

Page 63: ...OTCH FILTER AT SECOND HARMONIC ADJUSTABLE SHORTING SLEEVE II I I I I I I II AT FREQUENCIES BELOW RESONANCE THE STUB APPEARS AS AN INDUCTANCE AT FREQUENCIES ABOVE RESONANCE THE STUB APPEARS AS A CAPACI...

Page 64: ......

Page 65: ...n POWER OUTPUT WATTS REFER TO TRANSMITTER FACTORY TEST DATA FOR THE EFFICIENCY FACTOR DETERMINED ON FINAL TEST FIGURE 7 5 PA EFFICIENCY CURVE FM 2 5H3 FM 2 5K 815 3518 001 C 888 1759 003 7 1 1 7 12 WA...

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Page 67: ...UN SCUTT negJig VIM rilts llncIFY COT ANC COI III OM SITO FREDUENCT WW1 rT7 MT 1 liii 12J 8 RA TIME LAI I88 SECOND cl la we re1tR 16 6 81 54 gg 111 eta ree O cefe siTs 2 1 cmiA tWffil IV link lin o IL...

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