Varian Continental Electronics 802A, Instruction Manual

Page 1: ...802A FM BROADCAST SOLID STATE EXCITER INSTRUCTION MANUAL 83 0664 e 944 11 1 ces_ a Division of Varian Associates P O BOX 270879 DALLAS TEXAS 75227 214 381 7161 CABLE ADDRESS CONTRONICS TELEX ADDRESS 7...

Page 2: ......

Page 3: ...TYPE 802A FM BROADCAST SOLID STATE EXCITER INSTRUCTION MANUAL varian a Division of Varian Associates P O BOX 270879 DALLAS TEXAS 75227 214 381 7161 CABLE ADDRESS CONTRONICS TELEX ADDRESS 73 398...

Page 4: ...i 0...

Page 5: ...CHANGE NO 1 802A RECORD OF CHANGES 802A DATE 14 November 1983 EFFECTIVITY All Transmitters 2 10 July 1984 SN 240 and Above...

Page 6: ......

Page 7: ...C Circuits 4 1 4 1 2 Audio Circuits 4 6 4 1 3 Amplifier and Power Output Control Circuits 4 9 4 1 4 Power Supply Circuits 4 14 4 1 5 Metering and Monitoring Circuits 4 2 Detailed Circuit Description 4...

Page 8: ...Page 5 1 General 5 1 5 2 Power Supplies 5 2 5 3 Modulated Oscillator and Frequency Divider 5 2 5 4 Audio AFC And Modulation Display 5 3 5 5 Amplifier Amplifier Control and Metering 5 4 5 6 Harmonic Fi...

Page 9: ...plifier and Power Output Control Simplified Diagram 4 6 Power Supply Circuits Simplified Diagram 4 7 Power Supply Circuits Parts Location 4 8 Modulation Display Simplified Diagram 4 9 Metering and Mon...

Page 10: ...stics 1 5 1 2 Recommended Semi Conductor Spares List 1 8 3 1 Operating Controls 3 3 3 2 Typical AFC Voltage vs Frequency 3 6 3 3 Typical Amplifier Voltage and Current 3 7 5 1 List of Schematics and As...

Page 11: ...watts to 50 watts Designed primarily as a driver for higher power transmitters the 802A may also be used as a stand alone 50 watt transmitter The 802A is supplied with a balanced monophonic input a ba...

Page 12: ...802A 83 0665 U1114 116 Figure 1 1 Type 802A FM Exciter 1 2...

Page 13: ...ATOR LOOP 4 PHASE FILTER r REFERENCE OSCILLATOR 10 MHz PRE EMPHASIS AUDIO AMPS MODULATING SIGNALS CC DIRECTIONAL COUPLER FWD REFL OUTPUT POWER CONTROL 35V HARMONIC FILTER VOLTAGE REGULATOR 41 POWER SU...

Page 14: ...802A 1 2 EQUIPMENT REQUIRED OR SUGGESTED BUT NOT FURNISHED OPTIONAL Recommended Semiconductor Spares Kit 643 0055 002 100 Semiconductor Spares Kit 643 0055 001 Blank Panels per customer rack...

Page 15: ...o 109 MHz in 10 kHz steps PLL Frequency Synthesis from high stability master oscillator 250 Hz 0 to 55 C Direct carrier frequency modulation Peak reading LED display with over modulation indicator 73...

Page 16: ...MS for 75 kHz deviation SCA Amplitude Response 0 3 dB 40 kHz to 100 kHz MONAURAL OPERATION Audio Input Impedance Audio Input Return Loss Audio Input Level 600 ohms balanced 30 dB or better 10 dBm 6 93...

Page 17: ...to 55 C 32 F to 131 F Altitude Range 0 to 4600 M 0 to 15 100 ft Relative Humidity Range 0 to 95 Size 17 1 2 wide 444 5 mm centered in a 19 inch wide 483 mm rack mounting panel 5 1 4 133 35 mm high 22...

Page 18: ...A 352 5016 020 1 1 AR1A1Q2 Xstr PT9732 352 4009 010 1 1 AR1A1Q1 Xstr 2N3553 352 0632 010 1 1 A7VR1 Diode 1N4728A 353 6481 010 1 1 A6U4 I C LM555CN 351 1140 010 1 1 A6U2 3 I C LM3914N 351 4709 010 2 1...

Page 19: ...7N 351 1370 020 2 1 A6U1 A3U8 I C 4N28 351 0047 030 1 1 A3U6 A5U1 3 I C LM358N 351 1211 040 3 1 A3U3 4 I C CLM 51 352 4010 010 3 1 A3U2 I C LF353N 351 1370 040 1 1 A3U1 I C MC14568BCP 351 8883 010 1 1...

Page 20: ...802A TABLE 1 2 RECOMMENDED SEMICONDUCTORS SPARES LIST A2U2 A3U5 A2U1 Al2Q1 4 A3Q1 2 A5Q1 A6Q1 I C SN74LS74AN I C MC12011P XSTR 2N2222A 351 1710 020 2 1 351 4708 010 1 1 352 0661 020 8 4...

Page 21: ...ine voltage connector with a 1 5 ampere fuse 4 The 802A is shipped from the factory set to the customer s operating frequency If the operating frequency was not specified the 802A will be shipped set...

Page 22: ...LECTOR 120 240 V 50 60 HZ 3A 1 5A S B FUSE 83 0671 ACTUAL LINE VOLTAGE Below 110 VAC 110 130 VAC Below 220 VAC 220 250 VAC LW1 1 19 SET AC LINE SELECTOR FOR 100 V 120 V 220 V 240 V Figure 2 1 Rear Pan...

Page 23: ...r approximately 5 seconds the AFC LED will illuminate and the forward power meter will indicate power output Output power may be adjusted through the hole in the top cover Verify the multimeter indica...

Page 24: ...11111 COMPOSITE MONO SWITCH da 11 11111 11111 11111 1I RF OUT MONO 7e RF OUTPUT FAN INTAKE 1111 II le 111113111111111111111 1111111_111111113111111 11111111111311111111111 1111111111111111111111 MIZI1...

Page 25: ...rving the modulation bar graph 4 Verify Power output and proper load by noting Forward and Reflected power and the absence of VSWR indicator illumination 5 Check meter readings a The 22V should read 2...

Page 26: ...4 REAR 3 REAR 1 83 0661 15 17 5 16 0 111M1 11 1111 I mum v 11 21 Ai IA list 001 M BR LTh1 _ 6 7 MODWA71012 mat 8 9 10 14 18 TOP 11 POWER le IC SWR j Figure 3 1 Operating Controls Indicators 12 13 N...

Page 27: ...plifier Collector voltage Power Amplifier Current 22V 22V 5V or AFC voltage for display on Item 2 The switch positions are mechanically inter locked 8 PUSH PUSH SWITCH Selects bar or dot when depresse...

Page 28: ...ion on Power Amplifier 15 BNC JACK Provides sample of RF output May be used to drive a frequency counter etc 16 BNC JACK Composite input provided for test convenience 17 BNC JACK Provides sample of co...

Page 29: ...FI FREQUENCY FL1 FILTERING DIVIDER A2 I MODULATED mgmu METERING AUDIO AFC OSCILLATOR NETWORK A3 MODULATION DISPLAY Al A7 A6 POWER TRANSFORMER 35V FILTER d CAPACITOR II POWER SUPPLY A4 AMPLIFIER CONTRO...

Page 30: ...AL AFC VOLTAGE vs FREQUENCY Fo MHz AFC VOLTAGE 87 3 5 88 4 0 89 4 4 90 4 9 91 5 4 92 5 9 93 6 4 94 6 9 95 7 4 96 8 0 97 8 7 98 9 7 99 11 0 100 5 7 101 6 1 102 6 5 103 6 9 104 7 3 105 7 7 106 8 1 107 8...

Page 31: ...0 14 4 2 31 25 15 9 2 62 30 17 4 2 92 35 18 8 3 20 40 20 1 3 44 45 21 5 3 71 50 22 7 3 94 98 1 MHz 5 8 4 98 10 11 1 1 49 15 13 3 1 89 20 15 2 2 23 25 16 9 2 51 30 18 5 2 78 35 20 0 3 01 40 21 4 3 23 4...

Page 32: ......

Page 33: ...ir CR1 CR2 is utilized for the AFC tuning voltage The other pair CR3 CR4 is used for modulation and biased with a DC voltage The DC bias voltage is changed at 100 MHz to optimize the AFC tuning voltag...

Page 34: ...mbly and is also rectified and used to drive the Reference Oscillator activity monitor DS2 DS2 will go out should the Reference Oscillator or its divider chain fail The Audio AFC Assembly in addition...

Page 35: ...D CK U5 M M DS2 6 REF OSC ACTIVITY U8 O ONE SHOT O Ric LD 1 625 Hz 10 MHz MSB I f U6 M M di LD 100 MHz LOGIC 625Hz 5 C11 C7 CR1 ZS DS1 5 MOD OSC MOD OSC ACTIVE 11 111 mwo U3 R28 MA _ rC34 MODULATING S...

Page 36: ...i C 0...

Page 37: ...802A FREQUENCY DIVIDER A2 MODU LATER OSCI LLATOR Al AUDIO AFC A3 8 0 00 LW14 I5 Figure 4 2 AFC Circuits Location Cover Removed 4 5...

Page 38: ...z by shunting resistor R27 with optically coupled transistor U8 below 100 MHz The bias voltage is approximately 2 8 VDC below 100 MHz and 5 8 VDC at 100 MHz and above 4 1 2 AUDIO CIRCUITS The Audio Ci...

Page 39: ...TER RF FILTER I RF FILTER RF FILTER R40 AAty R41 R70 MMEOP BALANCE R42 R43 ADJUST R44 R46 U9A U9B R47 R48 R50 R49 11 1 1 1 U9C R51 AUDIO LEVEL ADJUST R52 R53 AUDIO AFC A3 MEIMIM U9D R54 R71 MA R55 R59...

Page 40: ...o...

Page 41: ...ans of a lumped constant network This stage amplifies the signal to approxi mately a two watt level The output of the first stage is matched to the input of the second stage a PT9732 by means of a lum...

Page 42: ...83 0111111 HARMONIC FILTER FL1 AMPLIFIER CONTROL A5 AMPLIFIER AR1 Figure 4 4 Amplifier Power Control Circuit Location...

Page 43: ...G NETWORK 0 1 STRIPLINE mi MO Ma MR F31 5A 03 Vcc R24 VR1 U2 REGULATOR FC V R CL CS MUTE 02 R20 R21 R22 r R30 A111 VV 422 R31 R43 R23 R39 M A R42 R44 R27 R28 R26 S1 AGC R29 OF R18 ON R7 R8 R40 R6 CR1...

Page 44: ...C o o...

Page 45: ...shold voltage of VR2 the crowbar will fire shorting the collector voltage feed through R34 and blowing fuse Fl Over cur rent protection for the amplifier is provided by foldback current limiting in th...

Page 46: ...ormer secondary The 35V input is passed through regulator U2 to obtain 22V output This voltage is used to supply the first stage of the amplifier and other applications in the exciter where a very low...

Page 47: ...l TO AMPLIFIER CONTROL A5 35V I Cl 35V 15V 1 C20 T R8 R9 8 4V U1 r 1 1 AUDIO AFC A3 U10 C16 dame mum Ma awl U2 Ul 1 C20 1 R29 VR1 15V1 DS1 R30 VR2 15V DS2 1 Mill111 111 j 15V U1 C7 C4 I CR5 C8 U3 POWE...

Page 48: ...0 D...

Page 49: ...o POWER SUPPLY ASSEMBLY A4 83 066 7 o 81 CR1 Ti s1 UNDER COVER o C1 Figure 4 7 Power Supply Circuits Parts Location...

Page 50: ...es to calibrate the 115 full scale range of the display U1B and U1C form an absolute value detector This circuit detects both positive and negative peaks of the modulating signal The detector is flat...

Page 51: ...R3 c A7S1J K1 REMOTE FAULT RELAY 5V R7 R8 CR 2 R11 MODULATION DISPLAY ASSEMBLY A6 R13 R15 15 i AA f R14 CR3 C4 R12 20 CAL R17 R18 be OVERMODU LAT ION DS3 5V U4 ONE SHOT A7S1J 15 BAR DO AT 7si LW 1 1...

Page 52: ...C o o...

Page 53: ...o momunow DISPLAY A6 gar METERING MULTIMETER NETWORK A7 M2 POWER METER M1 83 0689 Figure 4 9 Metering Monitoring Circuits Location...

Page 54: ...resonant tank circuit is comprised of Li L2 CR1 CR2 CR3 and CR4 CR1 CR4 are varactor diodes used to modulate and tune the oscillator Diode pair CR3 and CR4 are used for modulation and to bias the osc...

Page 55: ...programmable counter R4 and C6 determine the output pulse width of U8 The 10 MHz crystal oscillator Yl is the reference oscillator for the AFC circuits The AFC circuits phase lock the carrier fre quen...

Page 56: ...mposite test input is applied to the inverting input of U9D A sample of U9D output is routed to the Modulation Display Assembly and to the Composite Monitor jack on the front panel Diode predistortion...

Page 57: ...ake quite a long time to achieve lock when first turning on or changing frequency Optically coupled variable resistors U3 and U4 are used to speed up the AFC filter response until phase lock is achiev...

Page 58: ...input C3 provides RF ground for the emitter of Ql The output of Ql is matched to the input of Q2 a PT9732 by the matching network comprised of L5 L15 C33 C9 L76 and a short strip line C8 provides DC...

Page 59: ...rs The regulated volt age from the series pass transistors is routed through current limiting and monitoring resistors R30 and R31 and applied to the amplifier The voltage developed across R30 and R31...

Page 60: ...wer signal at the non inverting input to U3A exceeds the bias voltage at the inverting input established by R16 and R17 the output of U3A will go high and cause the front panel VSWR LED indicator to i...

Page 61: ...ach driver at Pin 5 R17 adjusts the signal for 20 full scale The reference voltage for the drivers is derived from the internal reference voltage of U3 via R20 and R21 The low end of U3 voltage divide...

Page 62: ...SEMBLY A7 Refer to schematic 643 0025 001 and assembly drawing 643 0024 001 The Metering Network Assembly comprises the front panel selec tor switch and associated metering resistor networks Push Push...

Page 63: ...es sufficient harmonic rejection to allow the 802A to be used as a stand alone 50 watt transmitter The filter is a five pole lumped constant filter C2 and C4 are used to optimize filter input impedanc...

Page 64: ...0 o...

Page 65: ...vider and Audio AFC boards have covers which are held in place by four screws accessible from the bottom of the exciter The top cover of the amplifier may be removed for in place trouble shooting The...

Page 66: ...ving four screws from the bottom of the exciter The 802A output frequency may be calibrated by means of the reference oscillator this adjustment is accessible without removing the cover A sample of th...

Page 67: ...to the composite input With a voltmeter or oscilloscope adjust R51 for 2 25 VRMS 6 36 V peak to peak at TP9 Mono Composite Switch in COMPOSITE position C Modulation Adjust Apply a 400 Hz 1 25 VRMS si...

Page 68: ...t channel to the composite input Adjust the signal level for 75 KHz deviation on the FM monitor Select the bar display mode and the 115 scale on the 802A front panel switch Adjust R2 until the 100 LED...

Page 69: ...tion R5 during this process The re iteration of the reflected power calibration is neces sary due to the fact that the VSWR protection is active at all times Therefore changing the gain of the re flec...

Page 70: ...h a frequency range extending to at least the tenth harmonic of the operating frequency Adjust C2 and C5 for minimum reflected power and harmonic level Several iterations of the adjustment may be nece...

Page 71: ...UNDER COVER MOD LEVEL ADJUST 115 CAL 20 CAL 83 0663 AGC SWITCH ON OFF Figure 5 1 Operating Adjustments Location REFERENCE OSCILLATOR ADJUST REFERENCE OSCILLATOR CALIBRATION SAMPLE REFLECTED POWER CALI...

Page 72: ...DIRECTIVITY ADJUST 83 0666 H FILTER ALIGNMENT Figure 5 2 Alignment Location Left Side Top o...

Page 73: ...AMPLIFIER CURRENT CALIBRATION k eibean e V vuele rac u n fflree 14144 MOIMORI MWA 1 010 J MO D111 1 V z Z Anuemm urnm reemrs 11 sararr 4 enzl feem 1 4 e _ 83 0668 Figure 5 3 Alignment Location Top Vie...

Page 74: ...40 U E5 0 C20 t_ c OD cn cc cc cc c J CC C CD 41 CID j r wil u o rA ire c j i_je eelt gkse L2 a 0 4 wr MODULATED OSCILLATOR 643 0015 001 C 1 17 El 83 0673 Figure 5 4 Modulated Oscillator P C Card...

Page 75: ......

Page 76: ...1134111 74 Figure 5 6 Frequency Divider Card o...

Page 77: ...802A MO TP3 1 7 1 03 TP9 t e t AUDIO AFC crY cnt 52151ASSY 643 0006 00i R24 U4 te 1441 t U3 ui 4 TPic Figure 5 7 Audio AFC PC Card LN1 1 20 5 13...

Page 78: ...o ce o...

Page 79: ...d 643 0016 001 A2 Frequency Divider 643 0004 001 A3 Audio AFC 643 0007 001 A4 Power Supply 643 0010 001 A5 Amplifier Control 643 0013 001 A6 Modulation Display 643 0019 001 A7 Metering Network 643 002...

Page 80: ...o 0...

Page 81: ...3 TO 0257 A1N DesiReo FR EaEIVCY AT TP1 F CONNECT PI o mH2 13 1e Z AS SHOWN mHz u3 3 2 5 MHZ J3 54 6 F Y I 3 1 19 X09 4 3 3 2 5 0 9 8 741 593 0 7 77 625 A 12 1J 0 X 110 14 2 3 2 5 0 9 7 74L5 90 rP5 LI...

Page 82: ......

Page 83: ...RE EMPHASIS CONNECT El TO E3 AND 6 TO E5 FOR 25 Af SEC PRE EMPHASIS CONNECT E2 TO 3 AND E9 TO 5 P d9 P55 K WA P7 K DS GRN 15V 79 5 CP5ei N4005 Ot T C201 CR6 11 cel N4005 L2 BALA Mt__ cze 444 77 830 80...

Page 84: ...o...

Page 85: ...4 3 4 r f77 C7 00 me 22 V 2 I 3 ROUND I 4 5 I e 22 V 7 I 8 9 c 1 OUT CR7 1 m 400 5 C9 ROUND 15 6 3 5 V 4 TEmi OINEI PART OA IDENT1 NO 50 Of Fe DASH NO 11 V T 44 ONIENCiA1UPE col scA Pi ON LIST OF MATE...

Page 86: ...C I o...

Page 87: ...3 R 9 R20 4 7 e 1 21e R25 8 2K 849 0 n P24 AAA 80 11 VR N4752A 177 1 C5 000pf CA f P2 5A 2 77 P38 P22 0IC 827 P28 K 02 2A 2222A A I R37 6 8K 7 LJ38 4 P45 41E6 P4 4 99 e 844 249 K C8 40 10 K C9 VP2 N47...

Page 88: ..._ C 0...

Page 89: ...R 0 39 0K RIZ 20 2 4W R G 5012 4w c9 rncii 470pF 470 0F 177 177 S cio 470 PF g3 2N5 03 RI f R 3 820 2 ASK 4W 1 4 1 4 77 R 8 3 3e Azw L4 I O2jH t i Q 4 2m5 09 C 2 VS 470 0F J 0 11 I 4 1 4 w VS g 7 80 2...

Page 90: ...C...

Page 91: ...7 8 920 8 17 6 5 6 1 2 1 0 1 3 XU3 Lbt 39 4 2 3 4 Ir 5 6 7 8 9 7 E 1 0 5V 6 1 COMPO6iTE IN D ISPLAY 6 4 A c L A vce GROUND 0 e 4 5 1 1 IR2 2 0K 1 NT I 3 HS R 114 1001 Xe I SCALE ADJUST I U A LF3 4 TP...

Page 92: ...0...

Page 93: ...RIPTION R C6 22 PF OK ITE ZONE PART OR IDENTIFYING NO DwG SIZE Crre REQD PER DASH NO Qi RF OUT J3 RF SAMPLE DATE APPROVED FL NOMENCLATURE OR DESCRIPTION LIST OF MATERIAL OR PARTS LIST CODE IDENT 43 00...

Page 94: ...o 0...

Page 95: ...C 00 0 DEC 0 00 I hi 0 LO IwErER NP 7 7 P449 coAfAio 8 NOLO S ANA PET 2 DISPLAY ENABLE 3 5 C A IT A7 1 OTT RIO PER D SH NO ITEM ZONE ORO PART OR IDENTIFYING NO elm NOKIENC ATuRE OR DESCRIPTION LIST OF...

Page 96: ...4 cl o...

Page 97: ...56p h E C36 pf E 0 00 n 1 2 IY 541 1 2 W C5 390p j7 L5 L 5 03 2 h 032ph C8 L6 M 023 1 4 390 4 2N355 1 1C3 IC33 C9 6 8 68 R 3 22 0 1 2W OUTPUT AMPLIFIER ASS Y 643 0027 00 Al CZ5 330p e L7 o 4 r CPI tR...

Page 98: ...C o o...

Page 99: ...FROM FRO141001F7 DOA f R0 9 FROM 47 fL SEE MIT 2 ZONE C 8 1 11 Id Id ff 1 E i n N Z Zi gel t I AN NiNritv4 A Ztii e isi 4 i t t it 1 111111111 11 t 2411 Lel tttlir 1111tft 11 r ff cl j l ln j j s i j...

Page 100: ...o P...

Page 101: ...SSY DWG 643 0020 00 SCHEMATIC 643 0022 001 L _ _ 4 7 A A R c 7 3 E4 A5jP 7 4e13 _ A A4 05 4 0 2 A 10 3 A4P 8 10 A P 8 3 A44 8 7 iltr e 8 3 4 1 A4P 8 9 M2P23 6 M4R23 7 Fihrl i _L_ P221 J2 r 2 I f 4 r w...

Page 102: ...o...

Page 103: ...lumn contains the identifying noun or item name followed by a brief description The description for electrical electronic parts includes the application ratings and tolerances For consecutively listed...

Page 104: ...0...

Page 105: ...NC Bulkhead 357 6000 010 CR1 Bridge Rectifier 353 5017 010 CR2 CR3 Diode 1N4005 353 6442 050 Fl Fuse 1 5A SB 240VAC 264 0303 000 Fl Fuse 3A SB 120VAC 264 0306 000 FL1 Harmonic Filter Assembly 643 0053...

Page 106: ...nnector 6 Pin 372 9604 110 Terminal for P16 372 9604 050 P19 Connector 6 Pin 372 9604 090 Terminal for P19 372 9604 010 P13 Connector 12 Pin 372 5909 790 Terminal for P13 372 5904 060 P12 Connector 6...

Page 107: ...o T SDNVHD 4 0D o Ref 643 0052 001 Rev Figure 6 1 Modulator Oscillator Assembly Al...

Page 108: ...dthru Cap 1000PF 913 4064 000 C3 Capacitor 82PF 912 3873 000 C5 Capacitor 56UF 913 5019 530 El Teflon Feedthru 306 3002 010 J1 J2 Connector 357 9670 000 J3 Connector Terminals 372 9604 020 J3 Connecto...

Page 109: ...i 1 Afir NumBee 0 Sue ASSEMBLY DeecemAreAlS oe zeorw Foe CoMiPZETEDESi6A4477044 2 CieCell Gremer A7d1 8 e CATioet SHALL AIEET oe ExcEED PEQZ ZPEMENTS Ofi kez P 55 eter AA L mm STD 275C Ref 643 0015 00...

Page 110: ...V2801 922 8004 010 CR5 CR6 Diode 1N4005 353 6442 050 CR7 CR8 Diode 353 0448 020 El Terminal 306 1126 000 thru E7 Li L2 RF Coil 051UH 278 5042 040 L3 L4 RF Choke 1 0UH 240 1590 000 L5 RF Coil 11UH 278...

Page 111: ...t 745 0748 000 R22 Resistor 47 Ohm 1 4 Watt 745 0700 000 R23 Resistor 15 Ohm 1 4 Watt 745 0682 000 R24 Resistor 243 Ohm 1 8 Watt 705 3600 670 R25 Resistor 2 67K 1 8 Watt 705 3605 200 R26 Resistor 100...

Page 112: ...A1 w Th 4 eA4 8E7 OE W6 A552AteLY s GNAT OMS 0 earl Pee C0 11 24 72 DeSAWAT CW 2 c Atee r ZECe24eGs fiit te CAT704 SAMez MEET ae exeeeD gee zed me VT 5 a 41 c 0 esnee Awn Ny h STD 275C REF FREQ ADJUST...

Page 113: ...UF 1UF 1UF 10UF 1000PF 1 8UH r 2N2222A r 2N2222A 47 ohm 1 4 Watt 1000 ohm 1 4 Watt 10K 1 4 Watt 5 6K 1 4 Watt 6 8K 1 4 Watt 220K 1 4 Watt 100 ohm 1 4 Watt 680 ohm 1 4 Watt 220K 1 4 Watt 180 ohm 1 4 Wa...

Page 114: ...U6 I C SN74LS190N 351 1711 010 U7 I C SN7420N 351 1548 090 U8 I C SN74121N 351 1187 010 U9 I C SN74LS93N 351 1711 060 U10 I C SN74LS9ON 351 1711 050 XU1 Socket 16 Pin 220 0049 020 XU2 Socket 14 Pin 22...

Page 115: ...TS OP Aez P 55 0e AND 4 4 c 57e e7 5C e wg re in feol e7H 4R4 CR is 6 4 0 Hz H o r n ydi 1 2Z H F 5 x1 5 JI tn De I L16 11J6 CM C13 25 C24 CE23 0 M C C 271 ern tR3 21 11 TOH 15 4 e C31 1 ur I _ti 4 0...

Page 116: ...Capacitor 1UF 913 5019 320 C23 Capacitor 1000PF 913 7006 010 C24 Capacitor 500PF 913 7006 020 C25 Capacitor 1000PF 913 7006 010 C26 Capacitor 500PF 913 7006 020 C27 C28 Capacitor 47UF 183 5007 020 C29...

Page 117: ...1 4 Watt 6 8K 1 4 Watt 1K 1 4 Watt 12K 1 4 Watt 1 8K 1 4 Watt 6 8K 1 4 Watt 180 ohm 1 4 Watt 10K 1 8 Watt 2 15K 1 8 Watt 4 42K 1 8 Watt 560K 1 4 Watt 180 ohm 1 4 Watt 6 8K 1 4 Watt 49 9K 1 8 Watt 3 9...

Page 118: ...51 I C SN74LS74AN I C LM358N I C CLM 51 I C 4N28 I C LF347N I C UA7815UC I C UA7915UC Zener 1N4739A Socket 16 Pin Socket 8 Pin Socket 14 Pin Socket 8 Pin Socket 14 Pin Socket 6 Pin Spacer Mounting Pa...

Page 119: ...A1 1 NUMBEe eze ASSEMBL Dde4tmecws ae BOTH rae comezere DE5 6 VAreN 2 checifir eroAeo F Azez eArloni SHALL Au Er oe EX E Re4k Aed t4i A re OF M S5 0 AND Adiz STD 27ec T 1 t L JI _ I 2 ede CD 4 Pee 2 R...

Page 120: ...Connector 372 9604 190 R1 Resistor 120 ohm 1 4 Watt 745 0715 000 R2 Resistor 2000 ohm 1 4 Watt 745 0759 000 R3 Resistor 220 ohm 1 4 Watt 745 0724 000 R4 Resistor 3600 ohm 1 4 Watt 745 0768 000 Ul I C...

Page 121: ...RENT CAL worz s PART AL APE FE PEA CZ DES 6A AT OA S ARE ShlOWN PPEF X WITH eAl T NUMBER OP SUB ASSEMBLY DES 6AUTIONS OR BOTH FOR c0 44Pi TE DeS 4 4 Ar oev 2 ezece r BoARLD 4 Age cArioAl s v4bI meer o...

Page 122: ...10K 1 4 Watt 3 9K 1 4 Watt 10K 1 4 Watt 1 8K 1 4 Watt 10K 1 4 Watt 1K 1 4 Watt 10K 1 2 Watt VAR 10K 1 4 Watt 15K 1 4 Watt 10K 1 4 Watt 2 2K 1 4 Watt 82K 1 4 Watt 4 7K 1 4 Watt 1 2K 1 4 Watt 5K 1 2 Wa...

Page 123: ...5 1117 000 R46 Resistor 10 ohm 1 4 Watt 745 0676 000 R47 Resistor 680 ohm 1 4 Watt 745 0742 000 R48 Resistor 1K 1 4 Watt 745 0748 000 R49 Resistor 10 ohm 1 4 Watt 745 0676 000 S1 Switch Slide SPDT 266...

Page 124: ...L et FE PE tee DES GNAT 0 V ARE SNOWN 4 YE Y WITH zbvir Aiibtelee P 5U8 ASSEMEIY DE lice VAT OA 5 g febrA FJR G 44 e LETZ DE S 6 i44r oiv 2 PC lg eazree FA Ie ATie CA ALL mdEr cif EXed d L PEQC ReNTEA...

Page 125: ...K 1 4 Watt 10K 1 2 Watt 10K 1 8 Watt 4 99K 1 8 Watt 10K 1 8 Watt 100K 1 8 Watt 10K 1 8 Watt 5600K 1 4 Watt 470K 1 4 Watt 10K 1 4 Watt 1 2K 1 4 Watt 5K 1 2 Watt VAR 10K 1 4 Watt 1 2K 1 4 Watt 1 8K 1 4...

Page 126: ...1K 1 8 Watt 705 1019 000 TP1 Terminal 306 1126 000 thru TP5 Ul I C LF347N 351 1370 020 U2 U3 I C LM3914N 351 4709 010 U4 I C LM555CN 351 1140 01D XDS1 XDS2 Socket 20 Pin 220 0049 093 XU1 Socket 14 Pin...

Page 127: ...E DESIGA 417 0A 5 Aee swoem Peel v1 N 4 A 7 NuMBE e OF sue Assema V DiSge IAT DA 5 Oe sorm ebe comezere Afeembdizay z c Pczar go teo FAeficArAIN 51 AZ Z MEE TOR e Ye dwo PE 17e ecciet A 7 5 OF NW 47 s...

Page 128: ...or Resistor Resistor Resistor 100K 1 8 Watt 9 09K 1 8 Watt 1 01K 1 8 Watt 499K 1 8 Watt 1 01K 1 8 Watt Variable 1K Switch 10 Station Diode 1N4728A Schematic Circuit Board PARTS NUMBER 372 9604 190 705...

Page 129: ...L2 L3 L4 RF Choke 288 0842 100 Ql XSTR MJ3001 352 5016 010 R1 Resistor 2 7K 1 4 Watt 745 0910 750 Si Temp Switch 267 5001 000 XQ1 Socket TO 3 220 0968 010 Cable Clamp 150 1540 000 XSTR Insulator 352 9...

Page 130: ...PLACES T SDNVHD J2 ci c_e J1 e k VlEYV A A 7 0 33 Ref 643 0054 001 Rev RorArep 30 clY Figure 6 9 Output Amplifier Assembly AR1 o...

Page 131: ...0PF 47PF 390PF 470PF 47UF 390PF 68PF 12PF 47PF 390PF 470PF 47UF 470PF 47PF 68PF 220PF 390PF 470PF 47UF 1000PF 39PF 330PF 47PF 330PF 56UF 6 8PF 47PF 10PF 47PF Coil 051UH Choke 1 0UH Choke 56UH Coil 032...

Page 132: ...zhevr Animg e OF cats Ass Ana4 CM 17 6NAT 04VS 64 4G7 N Foe ceedesere Z ciece r ercAea Awre zwinAe 45 m ser ne ArrYeerl kv au 4 esei Nrs ce Mhc 1 55 0 1 AND 3 SOLDER qz 05 TO MeAnD AFTEg HEA SMA AT A...

Page 133: ...esistor Resistor 100 ohm 1 2 Watt 15 ohm 1 2 Watt 22 ohm 1 2 Watt 10 ohm 1 2 Watt 22 ohm 2 Watt 200 ohm 1 2W VAR 1K 1 2 Watt 100 ohm 1 2 Watt 1K 1 2 Watt 22 ohm 1 2 Watt 2 2K 2 Watt 150 ohm 2 Watt Hea...

Page 134: ...802A PAGER T r 56 BOARD ASSY pETALL A 2 PLAcE 2 7o VVIDF 005 Thii PPE 9 STRAP Ref 643 0053 001 Rev Figure 6 11 Harmonic Filter FL1 6 32 CHANGE 1...

Page 135: ...802A SECTION 7 VENDOR DATA 7 1 SOLID STATE COMPONENT LAYOUT Table 7 1 contains connection layouts for the Solid State Components Change 1 7 1...

Page 136: ...0 0 o...

Page 137: ...OUT OUTPUT A INVERTING INPUT A NON INVERTING INPUT A v LF 353 OUTPUT A INVERTING INPUT A NON INVERTING INPUT A GND 6 5 LED NO 1 V 3 V 4 DIVIDER LOW END 5 SIGNAL INPUT DIVIDER HIGH END REFERENCE OUTPUT...

Page 138: ...F 4 BIT PROGRAMMABLE 4 I Q1 C2 COUNTER D2 VDD Pin 16 DP3 DP2 Vss Pin 8 MC14568B MR F315A PT 9732 4N28 Q MTTL Vcc MTTL OUTPUT VEE ANALOG HI IN ANALOG LO IN ANALOG RETURN REFERENCE IN REFERENCE OUT HOLD...

Page 139: ...OCK MIN INPUTS OA ENABLE DOWN Oc c 0 GND G UP NC 2 CURRENT E LIMIT 3 CURRENT SENSE IN I 74LS190 _J UA723 14 NC 13 FREQ COMP 12 v 11 VC 10 V OUT 9 Vz 8 NC GND OA OD OB INPUT A Nc OA 0 13 A OC B r Ro l...

Page 140: ...o o 0...

Page 141: ...Iv i013Vi...

Page 142: ...o...

Page 143: ...RTION Hz 100 MOD 50 100 400 1 000 5 000 7 500 10 000 15 000 0 04 0 025 FM NOISE 78 dB AM NOISE 70 dB IM DISTORTION 4 1 0 045 RESPONSE dB Ikeec o 0dB 0 02 0 2 0 025 1 0 0 025 8 4 0 03 11 4 0 047 13 6 0...

Page 144: ...40...

Page 145: ...FM EXCITER METER READINGS 22 22 5 AFC 21 3 V 21 5 V 4 93 V 8 0 V POWER OUTPUT Vc VOLTS Ic AMPS 50 25 2 3 70 45 23 7 3 55 40 22 0 3 36 35 20 4 3 17 30 18 8 2 96 25 17 1 2 74 20 15 5 2 50 15 13 7 2 20...

Page 146: ...gai...