Harris HTlFM Technical Manual Download Page 21 | Manualshive

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Summary of Contents for HTlFM

Page 1: ...www SteamPoweredRadio Com If You Didn t Get This From My Site Then It Was Stolen From TECHNICAL MANUAL mHARRIS HARRIS CORPORATION Broadcast Group P O Box 4290 Quincy Illinois 62305 4290...

Page 2: ...ATT AC Power Set For 240 vP C 60 HEFnz F 0 F9502 40001 Tr ansmitter S N MFGt S388890001 MF 10 370300002 Excite r RF Amp S N 750 MFG 1 3 55c t i j2 F Al F Amp 3 N 2923 P 42 S N MFG10805590001 F A2 F Am...

Page 3: ...NTROLLER FUNCTION CHECKS L 1 2 LOCAL METERING OK REMOTE METERING OK 4 LOCAL CONTROLS OK 4 REFLECTED POWER 5 REMOTE CONTROLS OK 6 VSWR SHUTDOWN Di 8 EXT nnr u cw IV CONTROLLER MULTIMETER READINGS I I 1...

Page 4: ...C N Fr 1 NOISE AM ASYCHRONOUS NOISE AM SYCHRONOUS NOISE _ _ 01 t l 0 L II Ol 1 01 0 00 4 08 0123 83 80 dB 7 i 2 1 dB 66 10 dB 7 MONO TEST DATA WITH PRE EMPHASIS SET FOR DI ST 1 It 353 355 r _ J tJ a 5...

Page 5: ...Was Stolen From TECHNICAL MANUAL HT 2S0FM 994 9233 002 HT S00FM 994 9195 002 HT lFM 994 9231 002 fl HARRIS 2 J kcn r Pa s Boo t22 2vg r2e5ul r u 1 e S s t 217 2 2 Z 82 uo T M No 888 2312 002 Copyrigh...

Page 6: ...002 02 05 90 ECN MANUAL REVISION HISTORY PAGE HT250 S00 1FM 988 2312 001 Pages Affected PCNDP 37 Replaced the following pages Title Page iv 5 4 all of Section VI Added Manual Revision History Page MR...

Page 7: ...lowing 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 Halogenat...

Page 8: ...UTE APPROX RATE OF COMPRESSIONS 60 PER MINUTE IF NOT BREATHING BEGIN ARTIFICIAL BREATHING TILT HEAD PINCH NOSTRILS MAKE AIRTIGHT SEAL 4 QUl K FULL BREATHS REMEMBER MOUTH TO MOUTH RESUSCITATION f ONE R...

Page 9: ...s 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 o...

Page 10: ...ooting 5 2 Component Installation 2 1 Technical Assistance 5 2 Reassembly Instructions 2 1 Alignment Procedures 5 2 Initial Checkout 2 2 Voltmeter and Ammeter Calibration 5 3 Connections to Remote Con...

Page 11: ...500W PA c 50 ohms 500W PA to Combiner d 50 ohms Combiner to Antenna Load The convenience of 50 ohm interface al lows patching around any stage during an emergency fault condition For example should t...

Page 12: ...ARRIS I r NULTU T lt i rWJ JAT l wr Sllft Al C ttn l l l l l l I ltitMilC HA X X JOVJr 30 POfER AKPlJJIER I HARRIS I _ __ _ _ _ _ _ POTER AJIPfJ11EN _ PIJllat rH LT UliU OJ V ClND I Io o o I ff __ SLP...

Page 13: ...e PA current forward power and VSWR readings are all available for remote control monitoring These readings are all positive when referenced to ground 1 4 10 Controller Functions The Controller Panel...

Page 14: ...o the auto matic VSWR foldback circuit After the transmitter has been adjusted for desired output power the automatic power control automatically maintains power to within 5 The Automatic Power Contro...

Page 15: ...XIMUM LOAD VSWR i 5 1 VSWR maximum for full output power automatic power reduction into high VSWR s RF HARMONIC SPURIOUS OUTPUT Suppression meets or exceeds FCC DOC CCIR specifications AC INPUT POWER...

Page 16: ...ts varies due to the method ofshipment All removed items will be tagged to aid reinstallation in the transmitter Arrange these components in separate groups according to the section from which they we...

Page 17: ...the REMOTE LOCAL switch to LOCAL 2 2 5 Connections to Remote Controls The FM Transmitter may be operated by remote control by installing a remote con trol system If the transmitter is to be re motely...

Page 18: ...ORWARD Provides a remote indication offorward power 1 8 Vde typical signal at rated output power TBl 12 EXTSWR Provides a remote indication of SWR 1 0 Vdc typical signal at 1 5 1 VSWR at rated output...

Page 19: ...ll of the controls and indicators with the func tion of each item listed Controls and indicatorsfor theFMExciter are described in the HARRIS FM Exciter Technical Manual IlHl HARRIS I I HT 250FM I IB W...

Page 20: ...Y Y ff Y Y l l 0 0 0 0 i 1 J f 0 Oiuim 0 0 0 0 0 Q30 l 020 2303 006 Figure 3 3 HT S00FM Front View Figure 3 4 HT S00FM Rear View Equipment Refer To Page THE 1 Exciter See separate Technical Manual 98...

Page 21: ...0 0 0 0 _ 0 0 0 0 o Figure3 5 HT lFM Front View Figure 3 6 HT lFM Rear View Equipment Refer To Page THE 1 Exciter See separate Technical Manual 988 2283 001 Controller 3 4 PAAmpiifier 3 5 Table 3 3 H...

Page 22: ...smitter VSWRFAULT When illuminated indicates VSWR Fault limit set by R 64 has been exceeded PAFAULT When illuminated indicates a PA FAULT has been detected REJECTLOAD When illuminated indicates the RE...

Page 23: ...etected in power amplifier SUPPLY TEST VtoGND Gives a reading of power amplifier voltage ltoGND Gives a voltage reading that indicates power amplifier current 0 1V per amp Table 3 5 PA AmplifierFront...

Page 24: ...the Controller at J8 lfold until 50 power is reached This d Extend the upper Amplifier chassis may take 15seconds 1 llol 11 li C o o1J_ aboutl2inchestogainaccesstothetwo 2 II t J 0 0F1 d Check the VSW...

Page 25: ...enna At full 1 KW power with APC operating this fault condition can re sult in more than the specified dissipation in the reject load To prevent this condition and to provide a fault alarm the voltage...

Page 26: ...41 40 39 200 v I I l I Efficiency vs Power Out HT 1FM 0 5 _ rr 0 7 Thousands Output Power Watts Figure 4 1 HT JFM Efficiency Curve Efficiency vs Power Out HT 500FM _ 1 z 300 fat ia _ 1 r yf 400 Outpu...

Page 27: ...r are capable of having their output circuits placed in a high impedance state referred to as tri state This capabil ity permits the separation of circuits which remain active du ri ng a power failure...

Page 28: ...switch selects the PAEvoltmeterposition the voltage appear ing at the input to voltage follower U6A scaled by resistor R54 appears on the 0 60 scale The signals from precision voltage dividers in the...

Page 29: ...REFL POWER DET D A FWD POWER CAL R28 S7C FWD o ____13 U11A 4 7K 100K U5B TRIP R38 SWR CAL S7F APC 22K S7D SWR o o METER Figure 4 5 Power Metering and Control 888 2312 001 WARNING Disconnect primary po...

Page 30: ...B 5 As the voltage increases the output from U4B 7 increases This volt age is then divided down by Rl9 Rl 5 12 and R60 when SS is in the APC OFF posi tion R19 sets the maximum voltage and hence the ma...

Page 31: ...care must be taken if heat damaged components are located Over heating is usually a symptom of trouble It is essential to determine the actual cause of overheating before the heat damaged component is...

Page 32: ...es Preventative maintenance of switches is accomplished by checking the following a Inspect switches for defective mechani cal action or looseness of mounting and connections b Examine cases for chips...

Page 33: ...er available from the Exciter in the Manual mode a Connect the EXCITER RF OUTPUT through a calibrated power meter to a known good 50 Ohm load Connect the power meter as close as possible to out put co...

Page 34: ...OTE Note the placement of the resistors lo cated close to each matched pair of RF transistors Remove resistors as neces sary to gain access to transistors to be removed Also one end of inductors L3 L4...

Page 35: ...ucted 2 Clear obstruction from blower inlet haust PA Voltage too high PAE Meter over 51V PA FAULT LED blinking Over temperature on one PA module Reject load fault Sudden rise in output power VSWR faul...

Page 36: ...equipment 1 No audio input to the Exciter 2 Defective Exciter 2 Refer to Controller Troubleshoot ing table for corrective action 1 If no voltage is present when a known VSWR is present replace the re...

Page 37: ...TRI STATE CONTROL is in the HIGH state POWER ENABLE is in the LOW state OPERATING CIRCUITS TX ON circuit does not start transmitter 1 Regulator integrated circuit Ul open 2 Diode CR27 open 3 15 VOLT...

Page 38: ...O 2 Integrated circuit U7A is defective 2 Replace integrated circuit U7 TX OFF circuit will remain OFF 1 Integrated circuit U7A is defective 1 Replace U7 only if the TX OFF switch is held depressed Wh...

Page 39: ...rcuit U3A with a high impedance meter to ground Gain from Rl 4 13 either end to U3A 1 is 11 4 Check integrated circuit USA with a high impedance meter to ground Gain from resistor Rl 3 14 either end t...

Page 40: ...247319 Replaceable Parts List Index XMTR HT lFM RACKED 994 9231 001 6 2 XMTR HT lFM LESS RACK 994 9231003 6 2 BASIC HT lFM SS FM XMTR 994 9231 002 6 2 CABLE PKG HTlFM 943 5135 030 6 2 COMBINER ASSY 99...

Page 41: ...566 000 ELEMENT 100W 1 DC1 620 2581 000 CONNECTOR TYPE N MALE 1 DC1 740117 000 AMP MODULE 700W 86 100MHZ 0 3A1 4A1 817 2130 007 FILTER 2 UNIT 3 UNIT 4 943 5135 030 CABLE PKG HT1 FM 1 989 0084 001 PKG...

Page 42: ...PLANATIONS 354 0309 000 TERM SOLDER 2 A4E1 A4E2 384 0205 000 DIODE SILICON 1N914 4148 1 A4CR1 A4C1 A4R2 516 0530 000 CAP 0 01 UF 100V 20 1 540 0033 000 RES 220 0 OHM 1 2W 5 1 544 1634 000 RES 100 0 OH...

Page 43: ...ING YEL 12 10AWG 2 253 0074 000 CABLE 4C 22AWG SHLD 3 5 FT 252 0004 000 WIRE STRD 18AWG RED 9 1 FT 252 0006 000 WIRE STRD 14AWG BLU 15 2FT 252 0002 000 WIRE STRD 22AWG GRN 9 5 FT 354 0001 000 LUG 6 RI...

Page 44: ...50K OHM 1 4W 5 1 540 0983 000 RES 910 0K OHM 1 4W 5 1 548 0254 000 RES 49 9K OHM 125W 1 6 548 0256 000 RES 4 99K OHM 1 BW 1 1 548 0292 000 RES 10K OHM 1 8W 1 4 548 0318 000 RES 1000 OHM 1 4W 1 2 548 1...

Page 45: ...N QTY UM REF SYMBOLSIEXPLANATIONS 358 2997 000 END PLATE 236 TERM MODULE 1 384 0431 000 RECT 1N4001 1 CR028 384 0720 000 DIODE 15V ICTE 15 27 CR001 CR002 CR003 CR004 CR005 CR006 CR007 CR008 CR009 CR01...

Page 46: ...IC 16 CONT 7 404 0685 000 HEAT SINK 1 404 0704 000 SOCKET IC 20 PIN 2 472 1186 000 XFMR PWR DPC28 800 1 506 0244 000 CAP 22UF 63V 5 1 516 0453 000 CAP 1UF 100V 20 30 516 0530 000 CAP 0 01 UF 100V 20...

Page 47: ...HM 1 8W 1 548 2067 000 RES 5360 OHM 1 4W 1 1 548 2162 000 RES 39 2K OHM 1 4W 1 1 550 0914 000 POT 10K OHM 5 550 0939 000 POT 100K OHM 1 2W 1 550 1069 000 POT 5K OHM 1 2W 2 560 0060 000 MOV 250A 2 5J 4...

Page 48: ...WIRE STRD 14AWG BLU 15 6FT 354 0008 000 LUG 6 RING BLUE 16 14AWG 2 354 0010 000 LUG 10 RING BLU 16 14AWG 1 354 0613 000 CONTACT SOCKET 26 18 AWG 2 612 0857 000 SOCKET HOUSING 3 CKT 1 354 0017 000 LUG...

Page 49: ...CHEM OVERALL HT500FM CABLE PKG HT 250 500 FM PKG CK LIST LPFM LESSRACK R SC KIT HT 500FM LOW PWR FM 500W PA AC DISTRIBUTION ASSY CONTROLLER LOW PWR FM FM EXCITER THE 1 R SP KIT HT 500FM R SB KIT HT 50...

Page 50: ...5135 004 PA REAR PANEL 943 5135 005 MOUNTING FRAME 943 5135 019 CABLE PKG 500W 250W 943 5135 033 PA CHASSIS 1 CR001 0001 0002 0003 0004 8001 S001 L001 FL001 C001 C002 C004 C005 C004 COOS R003 R002 R0...

Page 51: ...C KIT HT 250FM 0 992 8123 001 AC DISTRIBUTION ASSY 1 992 8240 001 CONTROLLER LOW PWR FM 1 994 9124 001 FM EXCITER THE 1 1 994 9218 001 R SP KIT HT 250FM 0 994 9219 001 R SB KIT HT 250FM O UNIT 7 T1 RE...

Page 52: ...078 001 PLT LOGO 2 0LG PLSTC 1 7401109 000 MODULE 300W SS AMPLIFIER 1 8172130007 FILTER 1 817 2130 008 CHASSIS LATCH 1 822 0975 024 TERMINAL COVER PLT 839 7909 017 PA PWR SUPPLY HS 843 5135 006 PA TOP...

Page 53: ...ILTER 1 UNIT 5 831 5483 003 PANEL BLANK 1 3 4 IN 1 831 5483 027 PANEL BLANK 7 IN 5 606 0786 000 CB 10A 2P 250VAC 50 60HZ 1 PACB1 740 1109 000 MODULE 300W SS AMPLFIER 1 PA 6 14 888 2312 002 WARNING Dis...

Page 54: ...0319 000 XSTR MPS A14 1 380 0421 000 XSTR 2N4258 2 380 0536 000 XSTR 2N5179 1 380 0614 000 XSTR MJ11028 2 380 0622 000 XSTR U310 ESD 1 380 0678 000 XSTR ARRAY QUAD 2222 2 380 0716 000 TRANSISTOR 2N568...

Page 55: ...LCE10A 2 384 0838 000 DIODE 36V ICTE 36 2 386 0062 000 ZENER 1N4753 36V 2 386 0085 000 ZENER 1N4740A 10V 1 386 0092 000 ZENER 1N474415V 3 386 0135 000 ZENER 1N4733A5 1V 3 386 0138 000 ZENER 1N4750A 27...

Page 56: ...526 0097 000 CAP 47 UF 35V 20 2 526 0238 000 CAP 33UF 35V 20 526 0311 000 CAP 2 2UF 35V 10 526 0351 000 CAP 6 8UF 50V 20 2 2 526 0362 000 CAP 10UF 50V 20 2 526 0374 000 CAP 1 0F 5V 1 526 0376 000 CAP...

Page 57: ...ASSY 1 424 0100 000 BUMPER 8125 SQ 4 472 1675 000 XFMR PWR 60HZ FERRO 0 472 1676 000 XFMR PWR 50HZ FERRO 0 484 0385 000 FILTER LOWPASS 1200W FM 1 620 0122 000 ADPTR ANGLE N UG27CU 1 620 2548 000 RECP...

Page 58: ...XPLANATIONS 250 0086 000 250 0474 000 357 0089 000 358 0002 000 358 1971 000 358 2996 000 3583121 000 380 0716 000 384 0761 000 410 0378 000 CORD W PLUG ASSY 1 8001 CORD W PLUG ASSY 1 FL001 GUIDE MODU...

Page 59: ...TION QTY UM REF SYMBOLS EXPLANATIONS CORD W PLUG ASSY 1 UNIT 7 FILTER LOWPASS 1200W FM 1 FL002 ADPTR ANGLE N UG27CU 1 FL2 RECP FEMALE N PANEL 1 DC1 DIR COUPLER DUAL SOCKET 1 DC001 ELEMENT 250W 1 DC1 E...

Page 60: ...SD 2 382 1016 000 IC MM74C240N ESD 1 382 1017 000 IC MM74C244N ESD 1 382 1070 000 IC ILQ 1 OPTO ISOLATOR 2 384 0020 000 RECTIFIER IN4005 2 384 0205 000 DIODE SILICON 1N914 4148 10 384 0321 000 DIODE 5...

Page 61: ...POWER LINE 1 484 0370 000 FILTER AC LINE 120 250VAC 1 506 0232 000 CAP 01 UF 100V 5 3 506 0243 000 CAP 15UF 63V 5 2 516 0453 000 CAP 1UF 100V 20 5 516 0530 000 CAP 0 01UF 100V 20 2 516 0777 000 CAP 10...

Page 62: ...604 0851 000 SW RKR 8PST DIP 1 604 0852 000 SW RKR DIP 4 SPST 1 604 0903 000 SWITCH TGL SPDT MOM OFF 604 1091 000 SWITCH PB 1 0 POSITION 604 111 0 000 SWITCH PB 6 POSITION 1 606 0786 000 CB 10A 2P 250...

Page 63: ...9 016 839 7909 050 843 4114 151 839 6337 292 829 9135 466 SECTION VII DIAGRAMS HT 500FM Cabinet Outline Overall Schematic Control Board LPFM 1 0 Board 50V DC Supply Amplifier Overall Amplifier RF Part...

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