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Harris Platinum HT EL 2000LS, Техническое руководство

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Содержание Platinum HT EL 2000LS

Страница 1: ...3 Copyright 1999 2002 2003 Harris Corporation All rights reserved I Installation II Operation III Theory of Operation IV Maintenance Alignments V Troubleshooting VI Parts List Transmitter PA Amplifier...

Страница 2: ...K LISTs Use the PACKING CHECK LIST to help locate and identify any components or assemblies which are removed for shipping and must be reinstalled Also remove any shipping supports straps and packing...

Страница 3: ...L REVISION HISTORY 888 2457 001 Rev Date ECN Pages Changed 001 B 7 25 02 48420 Replaced Title Page iv and 4 6 Added MRH 1 MRH 2 888 2457 001 MRH 1 MRH 1 WARNING Disconnect primary power prior to servi...

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Страница 5: ...nd in the schematics C001 in a bill of material is equivalent to C1 on the schematic or 2 gives added information or further explanation i e Used for 208V operation only or Used for HT 10LS only etc I...

Страница 6: ......

Страница 7: ...ed The following National Fire Protection Association NFPA standards are recommended as reference Automatic Fire Detectors No 72E Installation Maintenance and Use of Portable Fire Extinguishers No 10...

Страница 8: ...ii...

Страница 9: ...le 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...

Страница 10: ...Section III Operation Introduction 3 1 Controls And Indicators 3 1 Local Turn on and Turn off 3 1 Video Controlled Operation 3 1 Remote Control Extended Operation 3 1 Section IV Theory of Operation In...

Страница 11: ...al Module Repair A 1 RF Amplifier Modules Theory of Operation A 1 Driver Module Low Band A 2 Driver Module High Band A 2 PA Module A 4 RF Quarter Modules A 4 Low Band Quarter Module A 4 High Band Quar...

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Страница 13: ...d visual modules are interchangeable and have overdrive over undervoltage power unbalance VSWR and overtemperature protection The modules may be repaired in the field at the quarter module or componen...

Страница 14: ...Figure 1 1 HT EL2000 LS HS Block Diagram Platinum Series 1 2 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 15: ...Table 1 1 Specifications Section I Introduction Specifications 888 2457 001 1 3 WARNING Disconnect primary power prior to servicing...

Страница 16: ...signal as in Differential Gain Incidental Carrier Phase Modulation 1 5 or better Carrier phase variation from reference white to sync tip relative to blanking Luminance Non linearity 1 0 dB or better...

Страница 17: ...60 dB RMS or better Relative to 25 kHz deviation AM Signal to Noise 55 dB RMS or better Relative to 100 amplitude modulation AM Synchronous Noise 40 dB RMS or better Relative to 100 amplitude modulat...

Страница 18: ...e 50 60 Hz Regulation 10 Air System Requirements Inlet Air Openings Rear door and front power module with filters Exhaust Air Openings Amplifier cabinet top 30 x 8 and amplifier cabinet right rear sid...

Страница 19: ...ossible damage to com ponents and connectors Notch diplexers are generally supplied in a frame which rests on or is bolted to the floor Directional couplers for metering are in the transmitter cabinet...

Страница 20: ...sed during unpacking The carrier may also wish to examine the packing material If the contents are incomplete or if the unit is damaged electri cally or mechanically notify the Harris Customer Service...

Страница 21: ...side front and rear When the cabinet is in its final position you may need to level the cabinet The HT EL cabinet has leveling jacks in the corners to aid in leveling the cabinet on un even floors Th...

Страница 22: ...ural Aural Input Dual Sound Audio 2 MONO AUR 2 XLR J8 J18 NICAM Reference BNC J9 J19 NICAM IF In BNC J10 J20 Option Access BNC J21 Remote Command Input 37 Pin D J22 Remote Status Output 37 Pin D J23 R...

Страница 23: ...ITTER FOR AC POWER SHORTS LOOSE HARDWARE WIRING ERRORS UNCONNECTED WIRES MISSING PARTS AND DEBRIS 2 6 2 Initial Turn on Sequence The following procedures are the sequential steps to safely turn on the...

Страница 24: ...of modulation Differential gain Incidental phase ICPM Differential phase Amplitude response and group delay compensation Exciter Group Delay Compensator and Notch Diplexer Equalizer adjustments Power...

Страница 25: ...tatus of the external interlock If the interlock is open a low will be asserted RF MUTE Exciter mute Indicates that some function has muted the exciter Asserted low for mute EXCITER FAULT Indicates ex...

Страница 26: ...Figure 2 3 Platinum Series 2 8 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 27: ...Figure 2 4 Section II Installation 888 2457 001 2 9 WARNING Disconnect primary power prior to servicing...

Страница 28: ...Figure 2 5 Platinum Series 2 10 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 29: ...Figure 2 6 Section II Installation 888 2457 001 2 11 WARNING Disconnect primary power prior to servicing...

Страница 30: ...Figure 2 7 Platinum Series 2 12 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 31: ...Figure 2 8 Section II Installation 888 2457 001 2 13 WARNING Disconnect primary power prior to servicing...

Страница 32: ...Figure 2 9 Platinum Series 2 14 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 33: ...Figure 2 10 Section II Installation 888 2457 001 2 15 WARNING Disconnect primary power prior to servicing...

Страница 34: ...Figure 2 11 Platinum Series 2 16 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 35: ...VIS FWD on the multimeter and press visual raise up arrow or visual lower down arrow button to set the visual power output level Next select aural output power AUR FWD on the multimeter and press aura...

Страница 36: ...Figure 3 1 Transmitter Controls and Indicators Platinum Series 3 2 888 2457 001 WARNING Disconnect primary power prior to servicing...

Страница 37: ...ON indicates AC power to Exciter 18 EXTERNAL INTERLOCK When ON indicates external interlock OPEN 19 50V SUPPLY FAULT When ON indicates power supply fault condition 20 MODULE FAULT When ON indicates on...

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Страница 39: ...e analog metering section The meter is a digital 4 1 2 digit A D convertor with multiplexed binary coded decimal BCD outputs This is followed by a BCD to seven segment display decoder and LED displays...

Страница 40: ...sing an UP or DOWN button U18 or U19 pin 23 PWR_CLK will issue one pulse then wait for 2 seconds and start issuing a 300Hz clock rate if the button is still pressed IC U18 also generates a 9 5Hz clock...

Страница 41: ...when the meter UP or DOWN button ispressed otherwisethe counter rests at 0 count The RAISE LOWER COMMANDS are debounced by the 105ms clock and passed on to the POWER UP DOWN output pins VISUAL STAY o...

Страница 42: ...ON 1 IN 840MS CLOCK TO ALL REGISTERS 2 IN METER UP COMMAND 3 IN METER DOWN COMMAND 4 IN RESET 5 IN VISUAL IF OSCILLATOR UNLOCK 6 IN MASTER OSCILLATOR UNLOCK 7 IN AURAL IF OSCILLATOR UNLOCK 8 13 IN NOT...

Страница 43: ...uce outputs as detailed below See Table 4 5 for U19 Input Output Functions 4 4 4 3 50V OK This circuit monitors the 50 volt supply and the comparator output will go low when the supply reaches 48 volt...

Страница 44: ...each 50 volt power supply and provides a summary fault signal to the interface logic assembly 1A7 Additionally the 5V P S fault signal is conditioned to interfaceto the 12V logic input of the interfa...

Страница 45: ...A7A3 PC boards for all three voltages and should be set to deliver 5V 0 1V and 12V 0 3V on the Interface Logic board at 1A7 U19 INPUTS 1 CLOCK LOGIC CLOCK 2 VIS_HI_VSWR 3 AUR_HI_VSWR 4 VIS_FB_ACT 5 AU...

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Страница 47: ...ge is exposed The information and procedures in this section is to be used by trained and experienced personnel Good judgement alertness and common sense are the best accident preventives 5 3 Preventi...

Страница 48: ...ing Discolored cracked or chipped com ponents indicate a possible overload b When replacing a resistor ensure the replacement value corresponds to the component designated by the schematic diagram c C...

Страница 49: ...urrent shunt and meter if recalibaration is needed a Select PS CURRENT on the Exciter Meter b On the Exciter Meter set R2 PA I CAL to match the measured current on the Bar Graph The Bar Graph reads 12...

Страница 50: ...Aural Exciter output to zero c Place JP1 and JP2 in 2 3 position to disable foldback 5 7 4 2 Visual High VSWR Adjustment a Move the coax cable 1A7P7 from 1A7J7 to 1A7J8 b Select the VIS REF meter pos...

Страница 51: ...reset R176 fully CW b Turn OFF the AC circuit breaker for one of the power supplies c Adjust R176 for a AURAL power output of 15 watts peak of sync d Turn ON the AC circuit breaker and the aural power...

Страница 52: ...n swab moistened with a suitable solvent Rubbing alcohol is highly diluted with water and is not effective Solvents are available at electronic supply houses which are useful The circuit board should...

Страница 53: ...quence of events meter readings revision level of circuit boards 6 3 Returns To return material to Harris under warranty a return authoriza tion number must be obtained from the Harris Customer Servic...

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Страница 55: ...001 F 7 5 Table 7 9 EXCITER SWITCHER HTEL2000 992 9272 001 J 7 5 Table 7 10 KIT FORMAT PARTS HTEL2000HS 992 9511 592 B 7 6 Table 7 11 CABINET HTEL 2000 992 8610 004 AR 7 7 Table 7 12 PWA MOV AC 198 2...

Страница 56: ...005 KIT INSTALL HTEL2000 120V 0 EA W 120V SOLDERING IRON 992 8788 001 KIT SPARE PWB 0001 EA SPARE BOARDS KIT OPTION QTY 1 REQ D IF ORDERED 992 8895 000 VIS COMB 3 WAY SELECT 0 EA 1A18A3 QTY 1 REQUIRE...

Страница 57: ...LDERING IRON 992 8755 005 KIT INSTALL HTEL2000 120V 0 EA W 120V SOLDERING IRON 992 8788 001 KIT SPARE PWB 0 EA SPARE BOARDS KIT OPTION QTY 1 REQ D IF ORDERED 992 8895 000 VIS COMB 3 WAY SELECT 0 EA OX...

Страница 58: ...KIT EXT LO SINGLE EXCITER 992 9511 251 B Harris PN Description QTY UM Reference Designators 200000000000000351COVER POWER SUPPLY 1 EA 620 0124 000 ADAPTER BNC UG306U 1 EA 1A19 OUTPUT 620 0455 000 ADP...

Страница 59: ...EXT DRAWER 1 PR 358 3372 000 CABLE CARRIER 1 EA 448 0973 000 LATCH SWELL 083 SERIES 2 EA 610 0762 000 PLUG 37 PIN 1 EA 610 0836 000 HOUSING PLUG 6 POS 1 EA 620 0547 000 ADAPTER BNC TO N UG201A U 2 EA...

Страница 60: ...K 10K OHM 2 2 EA R021 R045 540 1417 000 RES NETWORK 1500 OHM 2 3 EA R011 R022 R032 540 1494 000 RES NETWORK 1 8K 8 DIP 1 EA R046 548 2400 169 RES 51 1 OHM 1 2W 1 1 EA R029 548 2400 401 RES 10K OHM 1 2...

Страница 61: ...2 POLE 2 AMP 277VAC 1 EA 1A1CB4 606 0908 000 CB 2 POLE 5 AMP 277VAC 1 EA 1A1CB3 614 0046 000 TERM BD 2 TERM 1 EA 1A18TB1 614 0050 000 TERM BD 6 TERM 1 EA 1A18TB3 614 0872 000 BARRIER BLOCK 3 POLE 1X4...

Страница 62: ...7 13 POWER MODULE HTEL 2000 992 8612 010 E Harris PN Description QTY UM Reference Designators 041 6030 014 CHANNEL 1 16 MTL 3 150 FT 358 0002 000 BRACKET RESISTOR MTG 2 EA 1A11R1 358 2598 000 CABLE T...

Страница 63: ...OW STRT POL 1 EA J001 612 1184 000 SHUNT JUMPER 0 1 CENTERS 1 EA JPR001 843 5275 441 SCH SUPPLY FAULT DISPLAY 0 843 5275 443 PWB SUPPLY FAULT DISPLAY 1 Table 7 15 INTERFACE MODULE 992 8613 003 E Harri...

Страница 64: ...U034 404 0797 000 SOCKET DIP 24 PIN DL 3 EA XU008 XU015 XU019 404 0825 000 SOCKET DIP16 LO PROFILE 3 EA XK001 XK002 XK003 478 0392 000 XFMR RF MODEL T4 1 4 EA T001 T002 T003 T004 494 0398 000 CHOKE RF...

Страница 65: ...R158 R170 548 2400 404 RES 10 7K OHM 1 2W 1 2 EA R123 R133 548 2400 405 RES 11K OHM 1 2W 1 2 EA R098 R111 548 2400 418 RES 15K OHM 1 2W 1 1 EA R081 548 2400 426 RES 18 2K OHM 1 2W 1 1 EA R167 548 2400...

Страница 66: ...CR001 CR002 CR003 CR004 494 0389 000 CHOKE RF 2 70UH 2 EA L001 L002 516 0530 000 CAP 01UF 10 100V X7R 6 EA C002 C003 C004 C006 C007 C008 526 0342 000 CAP 2 7UF 35V 10 2 EA C001 C005 548 2400 169 RES...

Страница 67: ...atinum Series transmitter Driver Modules are multiple stage high gain RF amplifiers used primarily to amplify an exciter output and drive sub sequent amplifier stages 525 Watt PA Modules are built in...

Страница 68: ...ample to the module s protec tion control and monitor PCM system On the input and output Driver RF Intraconnection assemblies are provided optional capacitors for response correction On the input asse...

Страница 69: ...upler to the module output The directional coupler provides a reflected power sample to the module s protection control and monitor PCM system On the input and output Driver RF Intraconnection assembl...

Страница 70: ...on with application of 50 Volts to the quarter modules The quarter module supplies voltages representing temperature and ISO voltage to the module PCM system For any given channel class A and class AB...

Страница 71: ...nished by a step down regulator in the Protection Monitoring and Control Subsystem This regulated voltage switches with the switched 50 Volts Thermistor R1 is mounted to the heat sink between RF FETS...

Страница 72: ...his switched 50 Volts is reduced to 15 Volts by regulator U10 The 15 is supplied to each module to be used for temperature sensing and FET biasing The logic will not allow the module to enable if a fa...

Страница 73: ...nable switch S1 allows local control of the module on the extender while the transmitter is on CAUTION AN EXTERNAL RF LOAD MUST BE CONNECTED TO THE MOD ULE AT ALL TIMES DURING TEST BE SURE TO DISABLE...

Страница 74: ...ult 1 blink The cause for this fault is often external to the module First check the system VSWR on the display panel and check for a VSWR foldback or VSWR overload condition on the transmitter Check...

Страница 75: ...off bias to each FET one at a time with the bias adjustment pots Record the current after turning each pot off and look for one or more FETs whose bias current is zero or lower than the others If no...

Страница 76: ...d by measuring the resistance from the red 50 Volt wire of any quarter module to the 50 Volt pins of the input connector with an ohmmeter If open pass FETs are suspected check the voltage at collector...

Страница 77: ...r a load resistor should still be placed at the module output to prevent oscillation Starting with the first quarter module nearest the logic board and working toward the front handle measure the tota...

Страница 78: ...s and best mechanical strength For all other joints use SN 63 PB 37 for its low melting point b Always use electrical solder with a rosin flux Never use plumbing solder or acid fluxes which can cause...

Страница 79: ...TO ALL FOUR FET POSITIONS ON THE QUARTER MODULE BEFORE INSTALLING THE NEW FETS IMPORTANT WHEN CLEANING THE OLD THERMAL COMPOUND FROM UN DERNEATH THE FET AFTER REMOVAL USE A SWAB WITH JUST ENOUGH SOLV...

Страница 80: ...y concave the heat sink compound should be thickest in the center There should be excess heat sink compound on the blade Carefully wipe the excess compound off on a clean cloth do NOT try to re use th...

Страница 81: ...can be applied Enable module with MODULE ENABLE switch on test fixture Red LED will extinguish On PA modules one half of green LED will illuminate On driver modules both halves of green LED will be o...

Страница 82: ...ults The module should trip off between 1 7 and 2 1 Volts A 5 2 4 Overdrive Check Perform this check only after verifying that the module gain adjustment is correct See paragraph on Gain Check located...

Страница 83: ...reference At the reflected sample feedthrough or at the anode of CR1 inject a DC voltage Slowly increase the voltage until the module faults It should trip at a voltage 0 84 times the reference 10 To...

Страница 84: ...Table A 1 Summary of Module Specifications Platinum Series A 18 888 2457 001 WARNING Disconnect primary power prior to servcing...

Страница 85: ...Table A 2 Input Attenuators Driver Appendix A RF Amplifier Modules 888 2457 001 A 19 WARNING Disconnect primary power prior to servcing...

Страница 86: ...Table A 3 30 Watt Attenuators Platinum Series A 20 888 2457 001 WARNING Disconnect primary power prior to servcing...

Страница 87: ...erated by equipment and personnel in the air conditioned area Again we recommend consulting profes sionals experienced in the area of HVAC design to ensure satis factory results FACTOR ITEM BTU PER HO...

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Страница 89: ...g on ground wires or adjacent wiring Thus all ground wiring must be low in impedance as well as low in resistance without splices and as direct as possible Four basic grounds are required a AC ground...

Страница 90: ...s 0 5 meters The ground rods should be copper clad steel a minimum of eight feet 2 5 meters in length and spaced apart not more than twice the rod length Brazing or welding should be used for permanen...

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