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©2011 Broadcast Electronics 

7

 

EXCITER METERING CIRCUIT BOARD 

This section provides general information and specifications relative to operation of the exciter metering circuit 
board. 

7.1

 

DESCRIPTION. 

The metering circuit board is equipped with LED status indicators for the +5 volt, +20 volt, -20 volt, TEMP, 
VSWR, RF, and LOCK operating parameters. Modulation percentage from 5% to 145% is indicated by a color 
coded moving bar LED display with an automatic ranging amplifier to convert the meter full scale indication to 
14.5%. 
The metering circuit board also includes a multimeter circuit with an LCD display for measuring five steady-state 
operating parameters. In addition, the multimeter can be converted into a high-impedance dc voltmeter for 
troubleshooting purposes. 

7.2

 

INTERNAL VOLTMETER CHARACTERISTICS. 

The internal voltmeter input impedance is 1.5 Meg Ohms. The meter is capable of measuring dc potentials from 
0 to ±45 volts. 

7.3

 

REMOVAL AND INSTALLATION 

This section provides removal and installation procedures for the FX-50/E metering circuit board assembly. 

7.3.1

 

REMOVAL PROCEDURE. 

REQUIRED EQUIPMENT.  The following equipment is required to remove the metering circuit board assembly. 

A. Flat tip screwdriver, 4 inch (10.16 cm) shaft with 1/4 inch tip. 
B. Number 2 Phillips screwdriver, 4 inch (10.16 cm) shaft. 
C. Number 1 Phillips screwdriver, 4 inch (10.16 cm) shaft. 

PROCEDURE.  The removal of the metering circuit board assembly requires the exciter be placed on a suitable 
work surface. To remove the metering circuit board assembly, refer to Figure 7-1 and proceed as follows: 

WARNING

 

DISCONNECT EXCITER PRIMARY POWER  BEFORE 
PROCEEDING.

 

WARNING

 

A. Disconnect the primary power from the exciter. 
B. Remove the FX-50 top-cover and disconnect P14 from the metering circuit board. 
C. Remove the two front-panel mounting screws on each side of the chassis. 
D. Remove the four front-panel mounting screws on the underside of the chassis and lower the front-panel. 
E. Remove the five screws securing the shield to the circuit board assembly. 
F. Remove the five stand-offs and one screw securing the circuit board assembly to the front-panel. 
G. Lift the circuit board assembly from the front-panel by applying light pressure on the multimeter 
function switches. 

7.3.2

 

INSTALLATION PROCEDURE. 

To install the metering circuit board assembly after repairs have been completed, proceed as follows: 

Summary of Contents for FX-50

Page 1: ...Electronics 4100 North 24th Street Quincy Illinois 62305 USA Phone 217 224 9600 Fax 217 224 9607 www bdcast com bdcast bdcast com FX 50 FX 50E 50 WATT FM Exciter Instruction Manual 597 1050 Rev B December 15 2011 ...

Page 2: ...this manual without notice Any modifications shall not adversely affect performance of the equipment so modified Proprietary Notice This document contains proprietary data of Broadcast Electronics Inc No part of this publication may be reproduced transmitted transcribed stored in a retrieval system translated into any other language in any form or by any means electronic or mechanical including ph...

Page 3: ...red from new their new condition d Resale Equipment defined as equipment purchased from another manufacturer or supplier then resold by BE shall only carry such manufacturers or suppliers standard warranty in effect as of the original shipment date All warranty claims against any and all resale equipment sold by BE must be filed directly with the original equipment manufacturer BE is unable to pro...

Page 4: ...e equipment is described as used equipment it is sold as is and where is and no warranty applies unless authorized in writing EXCEPT AS SET FORTH HEREIN AS TO TITLE AND AS SPECIFICALLY REQUIRED BY LAW THERE ARE NO OTHER WARRANTIES OR ANY AFFIRMATIONS OF FACT OR PROMISES BY BE WITH REFERENCE TO THE EQUIPMENT OR TO MERCHANTABILITY FITNESS FOR A PARTICULAR APPLICATION SIGNAL COVERAGE INFRINGEMENT OR ...

Page 5: ...nce is available from Broadcast Electronics by letter prepaid telephone or E mail Equipment requiring repair or overhaul should be sent by common carrier prepaid insured and well protected If proper shipping materials are not available contact the RF Technical Services Department for a shipping container Do not mail the equipment We can assume no liability for inbound damage and necessary repairs ...

Page 6: ...rompt issuance of credit Please furnish complete details as to circumstances and reasons when requesting return of merchandise All returned merchandise must be sent freight prepaid and properly insured by the customer MODIFICATIONS Broadcast Electronics reserves the right to modify the design and specifications of the equipment in this manual without notice Any modifications shall not adversely af...

Page 7: ... tubes and power transistors involves one or more of the following hazards any one of which in the absence of safe operating practices and precautions could result in serious harm to personnel A HIGH VOLTAGE Normal operating voltages can be deadly Additional information follows B RF RADIATION Exposure to RF radiation may cause serious bodily injury possibly resulting in Blindness or death Cardiac ...

Page 8: ...th hour average level has been adopted by several U S Government agencies including the Occupational Safety and Health Administration OSHA as the standard protection guide for employee work environments An even stricter standard is recommended by the American National Standards Institute which recommends a 1 0 mW cm2 per one tenth hour average level exposure between 30 Hz and 300 MHz as the standa...

Page 9: ... 2 INSTALLATION 7 2 3 WIRING 12 2 4 EXCITER CHECKOUT 14 3 OPERATION 17 3 1 CONTROLS AND INDICATORS 17 3 2 OPERATION 17 4 THEORY OF OPERATION 21 4 1 FUNCTIONAL DESCRIPTION 21 5 MAINTENANCE 25 5 1 SAFETY CONSIDERATIONS 25 5 2 FIRST LEVEL MAINTENANCE 25 5 3 SECOND LEVEL MAINTENANCE 25 5 4 TROUBLESHOOTING 26 6 POWER SUPPLY CONTROL CIRCUIT 31 6 1 DESCRIPTION 31 6 2 ELECTRICAL CHARACTERISTICS 31 6 3 REM...

Page 10: ...N 55 8 6 MAINTENANCE 57 8 7 TROUBLESHOOTING 57 9 AFC PLL 58 9 1 DESCRIPTION 58 9 2 ELECTRICAL CHARACTERISTICS 58 9 3 REMOVAL AND INSTALLATION 59 9 4 THEORY OF OPERATION 59 9 5 FUNCTIONAL DESCRIPTION 59 9 6 MAINTENANCE 64 9 7 ELECTRICAL ADJUSTMENTS 64 9 8 TROUBLESHOOTING 70 10 RF AMPLIFIER 74 10 1 DESCRIPTION 74 10 2 ELECTRICAL SPECIFICATIONS 74 10 3 REMOVAL AND INSTALLATION 74 10 4 THEORY OF OPERA...

Page 11: ...Broadcast Electronics 11 4 INSTALLATION 85 11 5 INSTALLATION ADJUSTMENTS 86 11 6 THEORY OF OPERATION 86 11 7 MAINTENANCE 90 12 BE Part Numbers 94 13 RF Technical Services Contact Information 148 14 Drawings 148 ...

Page 12: ...x 2011 Broadcast Electronics This page intentionally left blank ...

Page 13: ...able MODEL PART NO DESCRIPTION FX 50 909 1051 225 3 50 Watt FM exciter 120V ac 50 60 Hz solid state with automatic power control and synthesized frequency control rack mount FX 50 909 1051 325 3 50 Watt FM exciter 220V 240V ac 50 60 Hz solid state with automatic power control and synthesized frequency control rack mount FX 50E 909 1050 329 3 50 Watt FM exciter 240V ac 50 Hz CE compliant Solid stat...

Page 14: ...ions are routed to a rear panel terminal strip and several BNC connectors On FX 50E units input and output connections are routed to a rear panel 25 pin D Type connector and several BNC connectors Figure 1 1 FX 50 E Exciter 1 5 ELECTRICAL DESCRIPTION The Broadcast Electronics FX 50 E exciters are solid state wideband FM units providing a continuously variable RF output from 3 to 50 watts into a 50...

Page 15: ...tects the RF output circuitry from excessive temperatures high VSWR conditions over voltage conditions and short circuit conditions RF AMPLIFIER The RF amplifier is a broadbanded 3 to 50 watt amplifier covering the entire commercial FM broadcast band Tuning of the amplifier is not required An optional low pass filter can be installed in the exciter to convert the exciter to a low power transmitter...

Page 16: ...5 BNC Connectors 25 Pin D Type Connector and 4 BNC Connectors WIDEBAND COMPOSITE OPERATION COMPOSITE INPUTS FX 50 3 Total Unbalanced 1 and Balanced 1 Plus Front Panel Test Provision 1 BNC Connectors FX 50E 2 Total Unbalanced 1 and Front Panel Test Provision 1 BNC Connectors COMPOSITE INPUT IMPEDANCE UNBALANCED 10 k Ohm Nominal Resistive BALANCED 10 k Ohm or 50 Ohm Programmable Jumper Selected COMP...

Page 17: ... IMPEDANCE 600 Ohms Balanced Resistive Adaptable to Other Impedances 60 dB Common Mode Suppression AUDIO INPUT LEVEL 10 dBm Nominal for 75 kHz Deviation 400 Hz Adaptable to Other Levels AUDIO FREQUENCY RESPONSE 0 5 dB 30 Hz to 15 kHz Selectable Flat 25 50 or 75 Microsecond Preemphasis HARMONIC DISTORTION PLUS NOISE 0 005 or Less at 400 Hz SMPTE INTERMODULATION DISTORTION 0 005 or Less 60 Hz to 7 k...

Page 18: ...CIFICATION PHYSICAL WEIGHT PACKED 46 Pounds 20 8 kg UNPACKED 38 Pounds 17 2 kg DIMENSIONS HEIGHT 5 25 Inches 13 3 cm WIDTH 17 70 Inches 44 9 cm DEPTH 19 00 Inches 48 3 cm ENVIRONMENTAL AMBIENT OPERATING TEMPERATURE 32 F to 122 F 0 C to 50 C Operational to 20 C HUMIDITY 95 Maximum Non Condensing ALTITUDE 0 to 15 000 Feet 4572 m Above Sea Level ...

Page 19: ... nomenclature and installation requirements Installation is accomplished as follows 1 Preliminary Installation 2 Wiring and 3 Exciter Checkout 2 2 1 PRELIMINARY INSTALLATION ENVIRONMENTAL CONSIDERATIONS Table 1 2 provides physical and environmental conditions which should be considered prior to FX 50 E installation WARNING WARNING ENSURE ALL RACK POWER IS DEENERGIZED BE FORE ATTEMPTING EXCITER INS...

Page 20: ...8 2011 Broadcast Electronics Figure 2 1 FX 50 E REAR PANEL CONNECTIONS SHEET 1 OR 2 ...

Page 21: ...9 2011 Broadcast Electronics Figure 2 1 FX 50 E REAR PANEL CONNECTIONS SHEET 2 OR 2 ...

Page 22: ... the rails over the slide stops and push the exciter into the rack OPERATING FUNCTION PROGRAMMING The FX 50 E exciters are equipped with several programmable operating functions Refer to the following text and program the operating functions as desired Pull the exciter forward until the slide rail stops are encountered Loosen the eight turn lock fasteners on the top of the exciter and remove the t...

Page 23: ...oard is selectable for input levels ranging from 0 0 dB to 10 dB The FX 50 E is shipped from the factory for an input level of 10 dB If an alternate level is required refer to Figure 2 3 and connect the appropriate resistor between terminals E1 and E2 as determined by the following information INPUT LEVEL RESISTOR VALUE 10 dBm OMIT 8 dBm 39k Ohm 4 dBm 10k Ohm 0 0 dBm 4 7k Ohm ...

Page 24: ...utput of the exciter Figure 2 3 AFC PLL CIRCUIT BOARD GAIN CONNECTIONS WARNING WARNING ENSURE THE EXCITER CASE ISCONNECTED TO EARTH GROUND GROUND Ensure a ground wire is connected from terminal 4 of the exciter rear panel terminal board to earth ground REMOTE CONTROL The FX 50 E exciters are designed for remote control operation refer to Figure 2 1 The exciter will interface with almost any remote...

Page 25: ...Switch S3 on the power supply control circuit board is provided to select the RF mute input logic polarity When S3 is operated to POS a 0V signal is required to mute the transmitter output When S3 is operated to NEG a greater than 5V signal is required to mute the transmitter output To mute the transmitter proceed as follows 1 Refer to Figure 2 1 and remove the jumper between J2 6 and J2 7 on FX 5...

Page 26: ...he connections of a composite stereo or SCA signal to the transmitter If the unit is equipped with the FM synchronous booster system rear panel receptacle SUB 1 is used as the input output connection for a reference frequency When using an SCA input the output level of the source must be adjusted to obtain the desired peak modulation as indicated by the modulation display 14 5 range Each input is ...

Page 27: ...s will illuminate B The multimeter will indicate approximately 1 0 amperes assuming an RF output power of 5 Watts Depress the multimeter FWD switch A Extend the exciter forward on the slide rails to expose the R F POWER OUTPUT ADJ control access hole in the left side of the top cover B Using an insulated adjustment tool adjust the exciter output power to the level required by the transmitter WARNI...

Page 28: ...e FX 50 E exciter to a tube type B T series FM transmitter The exciter interface cable is stored in the transmitter cabinet for shipment Refer to Table 2 1 and connect the cable to the exciter rear panel as described Table 2 1 REMOTE FX 50 E EXCITER CONNECTIONS WIRE FX 50 FX 50E 283 J2 4 J1 4 244 J2 5 J1 5 245 J2 7 J1 7 246 J2 8 J1 6 247 J2 9 J1 9 246 J2 10 J1 10 ...

Page 29: ...ely 5 seconds the LOCK indicator will illuminate to indicate operating frequency stabilization D The multimeter will be operated to the forward power function and indicate a previously adjusted RF output level Observe the modulation indicator to ensure programming is applied to the exciter Operate the multimeter forward switch to illuminate the FWD indicator and record the multimeter output power ...

Page 30: ...eter LCD Display Indicates units of voltage power or current as selected by the multimeter switches 10 RFL Multimeter Indicator Illuminates to indicate the reflected power multimeter function is selected 11 FWD Multimeter Indicator Illuminates to indicate the forward power multimeter function is selected 12 Forward Multimeter Switch Selects the forward power multimeter function when depressed 13 R...

Page 31: ...e multimeter indicates units of power 23 Modulation Indicator Indicates peak composite baseband modulation level Scale is calibrated for 100 at 75 kHz deviation 24 X10 Scale Indicator Illuminates when modulation display input level is multiplied by 10 Table 3 2 POWER VSWR CONVERSION Reflected Power in Watts POWER RATIO Forward Power in Watts VSWR 0 000 1 0 1 0 002 1 1 1 0 008 1 2 1 0 017 1 3 1 0 0...

Page 32: ...20 2011 Broadcast Electronics Figure 3 1 FX 50 E CONTROLS AND INDICATORS ...

Page 33: ...e 20 volt 20 volt and 5 volt operating potentials The filtered 20 volt supply associated with the RF amplifier is regulated by the control circuitry in response to preset level controls and feedback loops This supply contains over voltage over current reverse voltage short circuit and over temperature circuitry to protect the exciter sub assemblies CONTROL CIRCUIT The control circuitry regulates o...

Page 34: ...10 kHz increments Carrier sampled at the output of the modulated oscillator is returned to the AFC PLL circuit as feedback This feedback is divided and compared to a scaled down reference frequency within a programmable frequency synthesizer and comparator logic circuit to develop a correction signal During normal operation the AFC PLL circuit constantly modifies the correction signal applied to t...

Page 35: ...23 2011 Broadcast Electronics Figure 4 1 FX 50 E OVERALL SIMPLIFIED SCHEMATIC ...

Page 36: ...ned in the direct air flow from a cooling fan Heat sink temperature is monitored by the control circuitry If an over temperature condition exists the control circuit will automatically reduce RF power to maintain safe operation of the RF devices The broadband characteristics of the amplifier eliminates the necessity for adjustments for any frequency within the FM band assures that the exciter outp...

Page 37: ...WARNING ENSURE ALL PRIMARY POWER IS DISCONNECTED FROM THE EXCITER BEFORE ATTEMPTING EQUIPMENT MAINTENANCE 5 2 FIRST LEVEL MAINTENANCE First level maintenance consists of precautionary procedures applied to equipment to pre vent future failures These procedures are performed on a regular basis and the results recorded in a performance log Periodically the exciter chassis and fan filter should be cl...

Page 38: ...ment refer to Figure 5 1 and the following procedure Procedure To convert the multimeter to a test instrument proceed as follows A Extend the exciter forward and remove the top cover WARNING DO NOT TOUCH ANY FEED THROUGH CAPACITORS OR COMPONENTS ON THE RF AMPLIFIER MODULE WARNING WITH POWER APPLIED B Operate the test switch indicator on the metering circuit board assembly to illuminate the switch ...

Page 39: ...z 5 Watts 1 10 Ampere 097 Ampere 1 00 Ampere 10 Watts 1 59 Ampere 1 40 Ampere 1 39 Ampere 20 Watts 2 20 Ampere 1 92 Ampere 1 88 Ampere 30 Watts 2 77 Ampere 2 40 Ampere 2 34 Ampere 50 Watts 3 87 Ampere 3 30 Ampere 3 27 Ampere FWD 3 to 50 Watts RFL Less than 2 Watts Table 5 2 AC POWER REQUIREMENTS RF POWER OUTPUT MIDBAND AC INPUT POWER REQUIREMENTS 50 W 230 V AC 0 70 Ampere 30 W 230 V AC 0 60 Ampere...

Page 40: ...28 2011 Broadcast Electronics Figure 5 1 FX 50 E ASSEMBLY ...

Page 41: ...n be destroyed by excessive heat or lateral movement during soldering Use of a small iron with steady pressure is required for circuit board repairs To remove a soldered component from a circuit board cut the leads from the body of the defective component while the device is still soldered to the board Grip each component lead with long nose pliers Touch the soldering iron to the lead at the solde...

Page 42: ...ION FOR SHIPMENT If the exciter is removed from service to be shipped to another location ensure the following steps are accomplished prior to shipping A Secure the modulated oscillator assembly in place with two 6 32 X 3 4 inch 1 27 cm screws in the tapped holes provided B Ensure the top cover is secured to the exciter C Pack the exciter in a carton allowing 2 inches 5 08 cm minimum of packing ma...

Page 43: ...d by the power supply Each power supply is full wave rectified filtered and electronically regulated to assure stable equipment operation 6 2 ELECTRICAL CHARACTERISTICS Refer to Table 6 1 for electrical characteristics relative to the power supply control circuit board Table 6 1 POWER SUPPLY CONTROL CIRCUIT ELECTRICAL CHARACTERISTICS PARAMETER SPECIFICATION INPUTS AC POWER REQUIREMENTS FX 50 97 to...

Page 44: ...t board from the mounting stud at each corner 6 3 2 INSTALLATION PROCEDURE To install the power supply control circuit board after repairs have been completed proceed as follows WARNING WARNING ENSURE ALL SYSTEM POWER IS DISCONNECTED BEFORE PROCEEDING A Disconnect the primary power to the exciter B Follow the REMOVAL PROCEDURE in reverse order 6 4 THEORY OF OPERATION This section presents the theo...

Page 45: ...e power control circuit and the metering circuit board The forward amplifier circuit consists of meter amplifier U1A FWD CAL control R5 diode D1 and AUTO MAN switch S1 The reflected amplifier circuit consists of meter amplifier U1B RFL CAL control R9 diodes D1 and D2 and VSWR indicator driver U2A Forward Amplifier Output from the forward directional coupler is applied to the non inverting input of...

Page 46: ...34 2011 Broadcast Electronics Figure 6 1 CONTROL CIRCUITRY SIMPLIFIED SCHEMATIC ...

Page 47: ...esistors R47 R48 and R62 R63 and pass transistors Q401 and Q402 Pass Transistors Parallel pass transistors Q401 and Q402 operate as an emitter follower circuit Voltage regulation is provided by a control voltage from U4 The regulated voltage at the emitter is routed to the PA transistor through meter resistors R62 R63 Zener diode D5 will limit the control voltage to 27 volts if voltage regulator U...

Page 48: ...ectifier and filter net work and applied to voltage regulator U5 Resistors R75 and R76 adjust the output of U5 for a regulated 5 volt dc potential The supply is applied to the AFC PLL circuit board and metering circuit board 20 VOLT SUPPLY The 22 5 volt ac potential is routed to a full wave rectifier and filter network and applied to voltage regulator U6 Resistors R77 and R78 adjust the output of ...

Page 49: ...37 2011 Broadcast Electronics Figure 6 2 POWER SUPPLY SIMPLIFIED SCHEMATIC DIAGRAM ...

Page 50: ...iter P N 949 0017 2 F Calibrated 50 Ohm in line wattmeter G Digital voltmeter Fluke 75 or equivalent H Temperature probe Fluke 80T 150 or equivalent FWD CAL R5 AND RFL CAL R9 FWD CAL control R5 and RFL CAL control R9 on the power supply control circuit board must be adjusted in proper sequence Potentiometers R5 and R9 are adjusted as follows Procedure To adjust controls R5 and R9 proceed as follow...

Page 51: ...CAL control R5 for 40 watts as indicated on the front panel FWD meter H Remove the external wattmeter Refer to Figure 6 4 and connect two 100 watt 50 Ohm test loads in parallel to the RF OUTPUT receptacle as shown I Depress the FWD meter function switch and record the meter indication WARNING DONOT TOUCH ANY COMPONENT WITHIN THE EXCITER WITH POWER APPLIED WARNING J Depress the RFL meter function s...

Page 52: ...l circuit board calibrates the output voltage of temperature sensor U1 on the RF amplifier assembly in relation to temperature Potentiometer R25 is adjusted as follows Procedure To adjust TEMP CAL control R25 proceed as follows WARNING DISCONNECT EXCITER PRIMARY POWER BEFORE PROCEEDING WARNING A Disconnect the primary power to the exciter B Remove the top cover and attach a temperature probe to th...

Page 53: ...41 2011 Broadcast Electronics Figure 6 4 PARALLEL LOAD CONNECTION ...

Page 54: ...e threshold of the over temperature circuit Potentiometer R27 is adjusted as follows Procedure To adjust control R27 proceed as follows WARNING DISCONNECT EXCITER PRIMARY POWER BEFORE PROCEEDING WARNING A Disconnect the primary power to the exciter B Remove the top cover Refer to Figure 6 3 and connect a voltmeter between TP2 and TP6 ground C Apply primary power and operate the exciter WARNING DON...

Page 55: ...ubleshooting information WARNING DISCONNECT PRIMARY POWER FROM THE EXCITER BEFORE REMOVING ANY COMPONENTS WARNING After the problem is isolated and power is totally deenergized refer to the schematic diagrams and the theory of operation to facilitate in problem resolution The defective circuitry may be repaired locally or the circuit board may be returned to Broadcast Electronics for repair or rep...

Page 56: ...44 2011 Broadcast Electronics Figure 6 5 NO PA VOLTAGE TO THE RF AMPLIFIER ...

Page 57: ...DURE REQUIRED EQUIPMENT The following equipment is required to remove the metering circuit board assembly A Flat tip screwdriver 4 inch 10 16 cm shaft with 1 4 inch tip B Number 2 Phillips screwdriver 4 inch 10 16 cm shaft C Number 1 Phillips screwdriver 4 inch 10 16 cm shaft PROCEDURE The removal of the metering circuit board assembly requires the exciter be placed on a suitable work surface To r...

Page 58: ...46 2011 Broadcast Electronics Figure 7 1 METERING CIRCUIT REMOVAL AND INSTALLATION DIAGRAM ...

Page 59: ...HIGH is input to U9 U9 will generate a three digit BCD code to the input of meter function latch U10 and a HIGH to one shot U8A U8A outputs a momentary LOW to the clock input of U10 which latches the information and routes the BCD code to the input of meter function input switch decoder U11 U11 will decode the information and output logic HIGHs to operate the appropriate input switch es for the se...

Page 60: ...48 2011 Broadcast Electronics Figure 7 2 METTERING BOARD SIMPLIFIED SCHEMATIC ...

Page 61: ...C32 transistor switch Q4 and one shot U8B automatically selects the forward power meter function when exciter primary power is applied Q4 will output a LOW to U8B as C32 charges through R61 U8B outputs a momentary HIGH to forward power meter function switch S1 and the input of meter function encoder U9 7 4 4 MODULATION DISPLAY CIRCUIT The modulation display circuit and moving bar LED display provi...

Page 62: ...h provides a 5 volt potential Voltage regulator circuit U14 converts a 20 volt potential into a 15 volt source Finally voltage regulator circuit U22 converts the 30 volt unregulated voltage B to provide a 24 volt potential 7 5 MAINTENANCE This section provides maintenance information electrical adjustment procedures and troubleshooting information for the metering circuit board assembly 7 5 1 ELEC...

Page 63: ...e 7 3 METERING CIRCUIT BOARD CONTROLS AND TEST POINTS DISPLAY CALIBRATE R41 AND X10 CALIBRATE R28 CONTROLS Display calibrate control R41 and X10 calibrate control R28 on the metering circuit board must be adjusted in proper sequence R41 and R28 are adjusted as follows Procedure To adjust R41 and R28 refer to Figure 7 3 as required and proceed as follows A Remove the top cover and connect an audio ...

Page 64: ...ollowing information and Table 7 1 which presents troubleshooting information for the metering circuit board WARNING DISCONNECT PRIMARY POWER FROM THE EXCITER BEFORE REMOVING ANY COMPONENTS WARNING After the problem is isolated and power is totally deenergized refer to the schematic diagrams and the theory of operation to facilitate in problem resolution The defective circuitry may be repaired loc...

Page 65: ...k display driver U20 NO MULTIMETER FUNCTION SWITCH OPERATION 1 Check integrated circuit U8A 2 Check integrated circuit U9 3 Check integrated circuit U10 4 Check integrated circuit U11 NO PAV MULTIMETER FUNCTION 1 Check PAV switch S3 2 Check input switch U6B NO FWD POWER FUNCTION SELECTED WHEN PRIMARY POWER IS APPLIED 1 Check integrated circuit U8B 2 Check transistor Q4 and associated components NO...

Page 66: ...the RF Center Frequency SIGNAL OUTPUTS RF 1 mW at 50 Ohms AFC SAMPLE 1 mW at 50 Ohms 8 3 REMOVAL AND INSTALLATION This section provides removal and installation procedures for the modulated oscillator assembly 8 3 1 REMOVAL AND INSTALLATION PROCEDURES REQUIRED EQUIPMENT A number 2 Phillips screwdriver with a 4 inch 10 16 cm shaft is required to remove the modulated oscillator assembly from the exc...

Page 67: ... of transistor Q2 inductors L3 and L2 capacitors C1 and C2 and varactor diodes D1 through D8 C2 provides positive feedback to sustain oscillation Tuning is accomplished by the 2V to 9V dependent upon the carrier frequency potential applied to the varactor diodes from the AFC PLL circuit board through L1 L6 Varactor diodes D1 through D8 also operate as a linear FM modulator The modulation voltage a...

Page 68: ...56 2011 Broadcast Electronics Figure 8 1 MODULATED OSCILLATOR SIMPLIFIED SCHEMATIC DIAGRAM ...

Page 69: ...troubleshooting information for the exciter modulated oscillator assembly 8 6 1 MAINTENANCE ELECTRICAL ADJUSTMENTS The modulated oscillator assembly contains no controls which require adjustment or calibration 8 7 TROUBLESHOOTING Field servicing the modulated oscillator assembly is not recommended Therefore if difficulties are encountered and the modulated oscillator is suspected as faulty return ...

Page 70: ...hase with the reference frequency A dual speed PLL filter ensures rapid stabilization of the carrier frequency In addition the AFC PLL circuit board accepts sums and precorrects audio input signals to provide a linear response when applied to the modulated oscillator 9 2 ELECTRICAL CHARACTERISTICS Refer to Table 9 1 for electrical characteristics relative to the AFC PLL circuit board Table 9 1 AFC...

Page 71: ...ly D Remove the four screws securing the AFC PLL cover to the circuit board Remove the cover and the ground straps E Remove the four screws securing the AFC PLL circuit board to the exciter chassis and remove the circuit board 9 3 2 INSTALLATION PROCEDURE To install the AFC PLL circuit board assembly after repairs have been completed proceed as follows WARNING DISCONNECT EXCITER PRIMARY POWER BEFO...

Page 72: ... RF sample divider circuits and generates an error signal when a difference exists Logic circuit U9 is a programmable frequency synthesizer and comparator which will internally divide the 4 kHz signal at the OSC input to provide a frequency of 500 Hz When binary switches S1 S2 and S3 are preset for the appropriate carrier frequency U9 will divide the RF sample signal at the F input to provide 500 ...

Page 73: ...strip and 3 en able the AFC relay If an unlock condition exists the output of U4B will go LOW which rapidly discharges C42 through D2 and R40 and applies a LOW to U13A When this occurs the output of U13A will go LOW to extinguish the lock indicator disable the AFC relay inhibit the RF and activate a dual rate loop driver DUAL RATE LOOP DRIVER The LOW output from U13A is routed to a dual rate contr...

Page 74: ...62 2011 Broadcast Electronics Figure 9 1 AFC PLL CIRCUIT BOARD SIMPLIFIED SCHEMATIC ...

Page 75: ... amplifiers U16A and U16B Diodes D12 through D15 operate to limit the audio input level Pre emphasis is selected by programmable jumpers J5A and J5B which connect capacitor s C62 and or C63 into the circuit through resistor R37 The outputs of U16A and U16B are routed to differential amplifier U15B The voltage gain for U15B is selected by a gain select network consisting of resistor pack R96 and a ...

Page 76: ...exciter P N 407 0038 B Digital voltmeter Fluke 75 or equivalent C Low distortion audio generator and distortion analyzer Sound Technology 1710A or equivalent D Calibrated oscilloscope E High linearity FM demodulator Belar FMM 2 or equivalent F 20 dB power attenuator Bird 8343 200 or equivalent G Calibrated frequency counter HP 5315B or equivalent 9 7 1 BAL MONO R91 The BAL MONO level control on th...

Page 77: ...equipment and replace the top cover 9 7 2 BAL COMP R81 The BAL COMP level control on the AFC PLL circuit board adjusts the output level of the balanced composite amplifier circuit BAL COMP control R81 is adjusted as follows Procedure To adjust BAL COMP control R81 refer to Figure 9 2 as required and proceed as follows WARNING DISCONNECT EXCITER PRIMARY POWER BEFORE PROCEEDING WARNING A Disconnect ...

Page 78: ... B Remove the top cover and connect an audio generator to the rear panel UNBAL COMPOSITE INPUT receptacle C Connect a digital voltmeter to the front panel COMPOSITE OUT receptacle WARNING DONOT TOUCH ANY COMPONENT WITHIN THE EXCITER WITH POWER APPLIED WARNING D Apply primary power and operate the exciter E Adjust the audio generator for 400 Hz at 1 24V RMS output F With an insulated adjustment too...

Page 79: ... control R52 refer to Figure 9 2 as required and proceed as follows A Perform the BAL MONO R91 BAL COMP R81 and the UNBAL COMP R69 adjustment procedures WARNING DISCONNECT EXCITER PRIMARY POWER BEFORE PROCEEDING WARNING B Disconnect the exciter primary power C Remove the top cover and connect an audio generator to the front panel COMPOSITE IN receptacle Connect a digital voltmeter to the front pan...

Page 80: ...z 1 Hz depending on programmable jumper J3 E Disconnect the primary power remove all test equipment and replace the top cover 9 7 7 FREQUENCY SELECTION The exciter carrier frequency is established by programmable frequency synthesizer switches S1 S2 and S3 on the AFC PLL circuit board assembly refer to Figure 9 3 The position of each switch corresponds to a weighted binary number refer to Table 9 ...

Page 81: ...69 2011 Broadcast Electronics Table 9 2 FREQUENCY SYNTHESIZER PROGRAMMING ...

Page 82: ...PRE EMPHASIS SELECTION Programmable jumpers P5A and P5B on the AFC PLL circuit board establish the exciter pre emphasis The exciter is normally shipped with 75 microsecond pre emphasis If required an alternate pre emphasis can be selected as follows Procedure To select an alternate pre emphasis refer to Figure 9 2 as required and proceed as follows WARNING DISCONNECT EXCITER PRIMARY POWER BEFORE P...

Page 83: ...s totally deenergized refer to the schematic diagrams and the theory of operation to assist in problem resolution The defective circuitry may be repaired locally or the circuit board may be returned to Broadcast Electronics for repair or replacement CAUTION CAUTION INADVERTENT CONTACT BETWEEN ADJACENT COMPONENTS AND CIRCUIT TRACES MAY DAMAGE THE AFC PLL BOARD ...

Page 84: ...72 2011 Broadcast Electronics Figure 9 4 NO RF OUTPUT LOCK IS EXTINGUISHED ...

Page 85: ...73 2011 Broadcast Electronics Figure 9 5 NO MODULATION LOCK INDICATOR ILLUMINATED ...

Page 86: ...TIONS PARAMETER SPECIFICATIONS SIGNAL LEVELS RF AMPLIFIER INPUT 0 0 dBm at 50 Ohms OUTPUT 3 to 50 Watts RF at 50 Ohms DIRECTIONAL COUPLER OUTPUT FORWARD 2 2V DC at 50 Watts RF output REFLECTED Less than 1V DC at 50 Watts RF Output at 50 Ohms 10 3 REMOVAL AND INSTALLATION This section provides removal and installation procedures for the RF amplifier assembly 10 3 1 REMOVAL PROCEDURE REQUIRED EQUIPM...

Page 87: ...F amplifier circuit board contains a three stage FM broadband amplifier with a maximum output power of 50 watts Output levels from 3 to 50 watts are attained by adjusting the power transistor control voltage Due to the broadband characteristics tuning of the amplifier is not required In addition the RF amplifier circuit board contains forward and reflected power directional couplers and an input m...

Page 88: ... of output power to the following stage L3 provides a dc return path for Q3 and R8 ensures stable amplifier operation Driver amplifier Q3 operates from a dc potential of 20 volts Inductors L4 and L5 and capacitors C19 C22 and C23 provide power supply isolation Power Amplifier The power amplifier consists of power transistor Q4 an impedance matching network resistor R10 and PA bias control R17 The ...

Page 89: ...77 2011 Broadcast Electronics Figure 10 1 RF AMPLIFIER SIMPLIFIED SCHEMATIC ...

Page 90: ...s C40 and C41 and resistor R13 Capacitor C41 establishes the broadband characteristics of the circuit The directivity of the circuit is adjusted by null control R12 INPUT MUTE CIRCUIT The input mute circuit consists of transistors Q5 and Q6 During normal operation 20 volts is routed to input amplifier U2 through Q5 When the exciter is muted the final V supply is terminated The loss of this potenti...

Page 91: ...ction switch WARNING MAINTENANCE WITH POWER APPLIED IS ALWAYS CONSDIERED HAZARDOUS AND THEREFORE CUATION SHOULD BE OBSERVED DO NOT TOUCH ANY COMPONENTS WITHIN THE EXCITER WHEN POWER IS APPLIED WARNING WARNING USE AN INSULATED TOOL FOR ADJUSTMENT WARNING F Refer to Figure 10 2 and adjust R12 for minimum reflected power as indicated on the front panel meter WARNING DISCONNECT THE PRIMARY POWER TO TH...

Page 92: ...80 2011 Broadcast Electronics Figure 10 2 RF AMPLIFIER CIRCUIT BOARD CONTROLS ...

Page 93: ...NCE WITH POWER APPLIED IS ALWAYS CONSDIERED HAZARDOUS AND THEREFORE CUATION SHOULD BE OBSERVED DO NOT TOUCH ANY COMPONENTS WITHIN THE EXCITER WHEN POWER IS APPLIED WARNING WARNING USE AN INSULATED TOOL FOR ADJUSTMENT WARNING I Remove RF drive by disconnecting P17 from the RF amplifier J Refer to Figure 10 2 and adjust PWR SET control R52 on the power supply control circuit board fully clockwise K ...

Page 94: ...amplifier assembly WARNING DISCONNECT PRIMARY POWER FROM THE EXCITER BEFORE REMOVING ANY COMPONENTS WARNING After the problem is isolated and power is totally deenergized refer to the schematic diagrams and the theory of operation to facilitate in problem resolution The defective circuitry may be repaired locally or the circuit board may be returned to Broadcast Electronics for repair or replaceme...

Page 95: ...83 2011 Broadcast Electronics Figure 10 3 RF AMPLIFIER TROUBLESHOOTING INFORMATION ...

Page 96: ... VCXO The slave exciter will continue to operate reliably and well within the assigned frequency range 11 2 SYSTEM CONFIGURATIONS The optional synchronous FM booster circuit boards may be ordered in the following con figurations MODEL NO PART NUMBER DESCRIPTION FX 50 E 909 0131 Master synchronous FM booster circuit board for the FX 50 E exciter factory installed FX 50 E 909 0132 Slave synchronous ...

Page 97: ...over to the circuit board Re move the cover and ground strap Secure two card guides to the AFC PLL assembly cover using the hardware provided Install two ribbon cable press clips on the side of the AFC PLL assembly cover Remove and discard intergrated circuit U1 from the AFC PLL circuit board Align pin 1 of the ribbon cable connector with pin 1 of socket XU1 and insert into the socket Install the ...

Page 98: ...ory of operation for the Broadcast Electronics optional synchronous FM booster system 11 6 1 FUNCTIONAL DESCRIPTION The synchronous FM booster system consists of 1 a master circuit board which generates a reference frequency and 2 a slave circuit board which locks to the reference frequency The master and slave circuit boards are plug in modules which interface with the AFC PLL circuit board in th...

Page 99: ...in the output range of the VCXO within accept able limits If loss of reference frequency occurs the output pulse of phase comparator U2 will exhibit a 50 duty cycle This will generate 2 5 volts to maintain the output frequency of the VCXO at a constant 10 MHz 11 6 3 MASTER CIRCUIT BOARD Figure 11 2 presents a simplified schematic of the master synchronous FM booster circuit board Refer to Figure 1...

Page 100: ...88 2011 Broadcast Electronics Figure 11 1 SLAVE FM BOOSTER SIMPLIIFED SCHEMATIC ...

Page 101: ...89 2011 Broadcast Electronics Figure 11 2 MASTER FM BOOSTER SIMPLIFIED SCHEMATIC ...

Page 102: ...ard adjusts the duty cycle of the reference signal Control R20 is adjusted as follows Procedure To adjust duty cycle control R20 proceed as follows WARNING DISCONNECT THE PRIMARY POWER TO THE EXCITER BEFORE PROCEEDING WARNING A Disconnect the exciter primary power B Remove the exciter top cover Refer to Figure 11 3 and connect an oscilloscope between TP2 and ground C Apply primary power to the exc...

Page 103: ...mmable jumpers J3 and J4 to position 2 3 C Refer to Figure 11 3 and adjust output level control R26 to midrange position D Refer to Figure 11 3 and connect an oscilloscope to exciter rear panel SUB 1 receptacle E Apply primary power to the exciter WARNING DO NOT TOUCH ANY COMPONENT WITHIN THE EXCITER WITH POWER APPLIED WARNING F Refer to Figure 11 3 and adjust L1 L2 and L3 for a maximum indication...

Page 104: ... POWER TO THE EXCITER BEFORE PROCEEDING WARNING B Disconnect the exciter primary power C Remove the top cover Refer to Figure 11 3 and connect a frequency counter between TP1 and ground D Remove the reference input from the rear panel SUB 1 input connector E Apply primary power to the exciter WARNING DO NOT TOUCH ANY COMPONENT WITHIN THE EXCITER WITH POWER APPLIED WARNING F Refer to Figure 11 3 an...

Page 105: ...93 2011 Broadcast Electronics REFERENCE FREQUENCY C25 C26 C29 125 kHz Removed Removed Removed 100 kHz Installed Installed Removed 90 909 kHz Installed Installed Installed ...

Page 106: ... 529 FX 50E EXCITER 220V CE NICKEL GRAY 1 027 2200 CAP LYTIC 22000UF 50V NOTE 1 1 140 0008 VARISTOR V250LA20A GE 2 1 230 3502 RECT ASSY 35A 200V 1 1 330 1200 FUSE 12A 250V CERAMIC SLO BLOW 1 1 334 0100 FUSE 1A MDL SLO BLO 250V 2 1 334 0150 FUSE 3AG 1 5 AMP SLO BLO 1 1 360 0003 FERRITE BEAD 291 DIA 2 1 360 6504 FUSE LINE FILTER MOD 120 240V 1 1 376 0050 XFMR POWER FX50 AM13377B 1 1 380 4600 FAN 4 1...

Page 107: ...W 4 40X 625 S S PH 8 1 420 6104 SCREW 6 32X 250 S S PH 8 1 420 6105 SCREW 6 32X 312 S S PH 14 1 420 6108 SCREW 6 32X 500 S S PH 2 1 420 6112 SCREW 6 32X 750 S S PH 2 1 420 6605 SCREW 6 32X 312 S S PH FH UC 11 1 420 8107 SCREW 8 32X 437 S S PHH 12 1 420 8116 SCREW 8 32X 250 S S PH FLH UC 6 1 421 1102 RIV BLD DOMED 3 32 2 1 421 1113 RIV CLOSED END 125 X 316L 1 1 421 4008 4 40 KEP NUT 12 1 421 6001 6...

Page 108: ... 5 1 450 1700 PLUG HOLE 1 2 NYL BLACK 2643 1 1 453 6701 CAP MTG BRKT MALLORY VR12 1 1 465 0090 101 ANGLE UPPER FRT PNL CE EXCITER 1 1 465 0091 100 ANGLE LOWER FRT PNL FX50 1 1 466 0093 ANGLE FRONT PANEL MOUNT FX50 2 1 467 0178 BOOT INSULATING FOR 360 6504 1 1 467 1003 OVERLAY FX50 1 1 469 0365 FINGER STOCK 1S197520A 32 1 469 0365 1 STRIP RFI SHIELD 2 2 469 0365 FINGER STOCK 1S197520A 2 75 1 469 03...

Page 109: ...2 1 486 0014 FERRULE BLK FOR 25 DIA HANDLE 4 1 488 0010 LATCH LO PROFILE 27 10 501 50 2 1 520 0034 100 CHASSIS FX50 FX50E 1 1 591 0001 PLATE FCC ID 1 1 594 0095 LABEL 1EC LINE RCPT 700 0152 1 1 594 0250 LABEL CAUTION TOP COVER FM EXC 1 1 594 0500 LABEL DANGER 1 1 601 1802 WIRE AWG18 19 30 RED NOTE 0 25 1 611 1250 TUB HT SHK 1 8 0 01 1 611 5000 TUB HT SHK 1 2 0 25 1 700 0145 FILM 2 DOUBLE ADHESIVE ...

Page 110: ...C38 C48 C54 2 031 1043 CAP MYLAR FILM 01UF 100V RAD 3 C9 C11 C40 2 031 2243 CAP MYLAR FILM 022UF 200V RAD 1 C26 2 038 4753 CAP PYST 47UF 100V 1 C44 2 040 2422 CAP MICA 240PF 3 C45 C46 C47 2 042 2531 CAP MICA 2500PF 500V 1 1 C62 2 042 3312 CAP MICA 33PF 500V 5 2 C65 C67 2 042 3922 CAP MICA 390PF 100V 5 6 C2 C17 C18 C19 C20 C36 2 042 5031 CAP MICA 5000PF 500V 1 1 C63 2 100 1031 RES 100 OHM 1 4W 1 ME...

Page 111: ...2 103 1331 RES 1 33K OHM 1 4W 1 METAL 2 R98 R100 2 103 1375 RES 13 7K OHM 1 4W 1 METAL 1 R101 2 103 1504 RES 1 5K OHM 1 4W 1 METAL 1 R28 2 103 1745 RES 17 4K OHM 1 4W 1 METAL 1 R82 2 103 1825 RES 18 2K OHM 1 4W 1 METAL 1 R92 2 103 2213 RES 221 OHM 1 4W 1 METAL 1 R33 2 103 2673 RES 267 OHM 1 4W 1 METAL 5 R7 R14 R38 R93 R94 2 103 3014 RES 3 01K OHM 1 4W 1 METAL 1 R83 2 103 3323 RES 332 OHM 1 4W 1 ME...

Page 112: ... 1 4W 1 METAL 1 R35 2 103 8256 RES 825K OHM 1 4W 1 METAL 1 R56 2 175 1034 RES TRMR 1K VERT ADJ 1 R63 2 177 5044 RES TRMR 5K VERT ADJ 3 R69 R81 R91 2 177 5054 RES TRMR 50K VERT ADJ 1 R52 2 200 0009 DIODE ZENER 1N 4739A 2 D17 D19 2 203 4005 DIODE 1N4005 2 D16 D18 2 203 4148 DIODE 1N4148 7 D1 D2 D3 D4 D5 D6 D7 2 211 3904 TSTR 2N3904 4 Q1 Q2 Q3 Q4 2 220 0317 VR LM317LZ TO92 1 U6 2 220 4040 IC MC14040B...

Page 113: ...2 360 2200 CHOKE RF 2 2UH 550MA 2 L1 L2 2 364 0047 COIL MOLDED 47UH 1 L3 2 370 0002 XMFR RF MCL T4 1 NOTE 1 T1 2 390 0001 OSC XTAL PC MT TCXO 10MHZ 1 Y1 2 402 0000 TY RAP 2 2 407 0074 SPR LED 25 ODX 147 1D X 22L 5 2 413 1597 TERM TURRET 2 SHLDR 219 GOLD FLASH 5 2 417 0003 CONN HEADER 3 PIN 3 J3 J4 J10 2 417 0004 JACK TEST RIGHT ANGLE PC MT 1 TP1 2 417 0200 CONN HEADER 20 PIN 2 J5 J8 J2 J1 2 417 08...

Page 114: ...P CER MNLY 1uF 50V 20 9 C5 C6 C7 C16 C25 C28 C30 C33 C37 2 014 1084 CAP LYTIC 100UF 50V INS 1 C15 2 014 1094 CAP LYTIC 1000UF 50V INS 2 C24 C29 2 023 1076 CAP LYTIC 10uF 50V STDUP 1 C17 2 023 1084 CAP LYTIC 100MFD 35V STDUP RAD 6 C26 C27 C31 C32 C35 C36 2 024 1064 CAP LYTIC 1UF 50V RAD 2 C11 C23 2 024 2274 CAP LYTIC 22UF 100V STDUP 1 C34 2 030 1033 CAP CER MOLDED 001UF 200V 10 2 C12 C20 2 031 1043...

Page 115: ... R86 2 103 1504 RES 1 5K OHM 1 4W 1 METAL 1 R10 2 103 1561 RES 150K OHM 1 4W 1 METAL 1 R31 2 103 2212 RES 22 1 OHM 1 4W 1 METAL 1 R54 2 103 2241 RES 2 21K OHM 1 4W 1 METAL 1 R39 2 103 3324 RES 3 32K OHM 1 4W 1 METAL 1 R29 2 103 3325 RES 33 2K OHM 1 4W 1 METAL 3 R35 R40 R48 2 103 3631 RES 365 OHM 1 4W 1 METAL 1 R75 2 103 3924 RES 3 92K OHM 1 4W 1 METAL 2 R16 R18 2 103 4755 RES 47 5K OHM 1 4W 1 META...

Page 116: ...R 1N4728 2 D29 D30 2 202 0502 RECT 3A 200V IN5402 1 D18 2 203 4005 DIODE 1N4005 14 D13 D14 D16 D17 D19 D20 D12 D15 D21 D22 D23 D24 D25 D26 2 203 4148 DIODE 1N4148 8 D1 D2 D3 D4 D8 D11 D28 D31 2 210 3906 2N3906 PNP 40V 2A 35W 250MHZ 2 Q3 Q5 2 211 3904 TSTR 2N3904 2 Q4 Q2 2 221 0358 AMP DUAL OP LM358 3 U1 U2 U3 2 227 0317 VR LM317T LM317KC 1 U5 2 227 0337 VOLTAGE REGULATOR 3 TERM NEG 1 U6 2 227 0723...

Page 117: ...NN 9 PIN 640501 5 AMP 1 J10 2 420 6105 SCREW 6 32X 312 S S PH 3 2 423 6002 6 LOCK SPLIT 3 2 426 6000 PEM NUT 6 32 KFS2 632 3 2 455 7805 HEATSINK TO 220PKG LOW PROFILE 2 2 519 0107 001 PCB MACH P S CNTL FM 100C scan 1 1 919 0108 ASSY PCB METERING 1 2 001 5004 CAP CER DISC 5PF 500V NPO 2 C8 C11 2 003 1054 CAP CER MNLY 1uF 50V 20 35 C2 C3 C4 C9 C10 C15 C17 C18 C19 C21 C22 C24 C27 C28 C30 C31 C34 C35 ...

Page 118: ... R69 R70 R71 2 100 1083 RES 10MEG OHM 1 4W 5 1 R26 2 100 1111 RES 118 OHM 1 4W 1 1 R110 2 100 1231 RES 121 OHM 1 4W 1 5 R78 R80 R82 R88 R108 2 100 1873 RES 1 8MEG OHM 1 4W 5 1 R59 2 100 2041 RES 2K OHM 1 4W 1 1 R40 2 100 2283 RES 22MEG OHM 1 4W 5 2 R21 R37 2 100 3051 RES 30 1K OHM 1 4W 1 1 R55 2 100 6031 RES 604 OHM 1 4W 1 1 R89 2 100 7132 RES 715 OHM 1 4W 1 1 R13 2 103 1007 RES 1 MEG OHM 1 4W 1 M...

Page 119: ... METAL 1 R24 2 103 3631 RES 365 OHM 1 4W 1 METAL 1 R83 2 103 4741 RES 4 75K OHM 1 4W 1 METAL 1 R43 2 103 4755 RES 47 5K OHM 1 4W 1 METAL 5 R57 R61 R62 R85 R96 2 103 4993 RES 499 OHM 1 4W 1 METAL 6 R6 R91 R93 R95 R7 R8 2 103 4996 RES 499K OHM 1 4W 1 METAL 1 R10 2 103 5112 RES 51 1 OHM 1 4W 1 METAL 2 R77 R112 2 103 5141 RES 5 11K OHM 1 4W 1 METAL 1 R35 2 103 5363 RES 536 OHM 1 4W 1 METAL 1 R11 2 103...

Page 120: ...06 2N3906 PNP 40V 2A 35W 250MHZ 3 Q3 Q4 Q5 2 211 3904 TSTR 2N3904 3 Q1 Q2 Q6 2 220 0317 VR LM317LZ TO92 1 U17 2 220 7136 A D 3 1 2 DIGIT LCD ICL7136CPL 1 U7 2 221 0074 AMP OP BIFET TLO74CW 2 U1 U2 2 221 4227 AMP DUAL OP 2 U4 U5 2 225 0004 IC CD4066BE 2 U3 U6 2 226 0392 RES NETWORK 10K 1 R32 2 226 2004 MC1416 ULN2004 7 DRLNGTNS DP16 1 U12 2 227 0317 VR LM317T LM317KC 2 U14 U22 2 227 0337 VOLTAGE RE...

Page 121: ...2 413 1597 TERM TURRET 2 SHLDR 219 GOLD FLASH 7 E1 TP1 TP2 TP3 TP4 TP5 TP6 2 417 0172 SKT 20 PIN SINGLE ROW SAMTEC 2 2 417 0200 CONN HEADER 20 PIN 1 J14 2 417 0804 SOCKET 8 PIN DIP BURNDY 3 XU4 XU5 XU18 2 417 1404 SOCKET 14 PIN DIP 5 XU1 XU2 XU3 XU6 XU13 2 417 1604 SKT 16 PIN DIP 6 XU8 XU9 XU10 XU11 XU12 XR32 2 417 1804 SOCKET 18 PIN DIP HIGH RELIABILITY 3 XU19 XU20 XU21 2 417 4005 SOCKET 40 PIN D...

Page 122: ...0 2 C312 C313 3 038 4750 CAP POLY 47MFD 50V 10 OR BETTER 2 C324 C325 3 040 1022 CAP MICA 100PF 500V RAD 10 C314 C316 C318 C320 C322 C326 C327 C328 C329 C330 3 047 1035 CAP FIL EMI SUPPR 1000pF 3 PIN 3 FL312 FL313 FL319 3 100 1041 RES 1K OHM 1 4W 1 3 R302 R306 R307 3 100 1051 RES 10K OHM 1 4W 1 1 R303 3 100 6031 RES 604 OHM 1 4W 1 1 R308 3 103 5112 RES 51 1 OHM 1 4W 1 METAL 2 R310 R311 3 103 8254 R...

Page 123: ...IN 2 J308 J309 3 417 0039 VLX CONN BNC PCB VERT MOUNT VALOX BODY 5 J305 J301 J302 J303 J304 3 417 0200 CONN HEADER 20 PIN 1 J307 3 417 1276 CONN PCB 12 PIN 1 J306 3 417 2502 FER RCPT 25 PIN D FEMALE FERITE FILTER 1 J1 3 420 6105 SCREW 6 32X 312 S S PH 10 3 423 6002 6 LOCK SPLIT 20 3 426 6000 PEM NUT 6 32 KFS2 632 10 3 441 0184 STOFF 6 32 MALE FEMALE 3 8 10 3 519 0445 001 PCB MACH RFI FILTER 1 4 51...

Page 124: ... AMP 350967 1 6 2 417 0053 SKT CONN 641294 1 AMP 52 2 417 0059 CONN 9 PIN 1 640521 0 AMP 1 P10 2 417 0122 HSNG 20 POS MOD IV 3 87499 7 2 P14 P307 2 417 0123 HSNG 16 POS MOD IV 2 87499 9 1 P1 2 417 0148 HSNG 10 POS MOD 1V 1 87499 7 1 P2 2 417 0176 CONN 20 PIN FEM AMP 1 350245 9 1 P15 2 417 0224 KEYING PLUG MOD IV 87077 AMP 3 2 417 1401 HOUSING SKT 14PIN AMP MOD IV 2 P12 P13 2 417 2379 CONN 155OC HO...

Page 125: ...MDL SLO BLO 250V 1 2 334 0150 FUSE 3AG 1 5 AMP SLO BLO 1 2 682 0003 CORD PWR EUROPEAN RIGHT ANGLE 6 1 2 701 0001 ENVELOPE COIN 2 1 2 X 4 1 4 3 2 701 0019 ANTISTATIC ZIPLOC BAG 13X18 4M 1 2 947 0020 ASSY CBL BNC ACCESS SBCM 2 3 417 0094 CONN BNC RG U58 31 320 AMPH 2 3 622 0050 CBL SH 50 OHM RG 58 CU 2 5 2 979 9983 KIT BIND MAN FX 50 1 3 597 1050 INSTRUCTION MANUAL FX 50 FX 50E FM EXCITER 1 3 598 00...

Page 126: ... 601 0022 WIRE AWG22 BUSS 0 166 2 611 2500 TUB HT SHK 1 4 0 083 2 693 0220 TUB TEFLON TW AWG22 NTL 0 249 2 919 0106 ASSY PCB MODLTD OSC FX 50 1 3 000 3302 CAP CER DISC 3 3PF 1000V 1 C16 3 001 5004 CAP CER DISC 5PF 500V NPO 1 C15 3 009 4723 CAP CER CHIP 470PF 200V 5 2 C3 C22 3 023 1076 CAP LYTIC 10uF 50V STDUP 1 C6 3 023 1084 CAP LYTIC 100MFD 35V STDUP RAD 2 C4 C7 3 040 1213 CAP MICA 12PF 500V 5 1 ...

Page 127: ...D9 D10 D11 3 203 4005 DIODE 1N4005 1 D12 3 205 0109 DIODE VARI CAP TUNING 6 D2 D3 D4 D6 D7 D8 3 205 3201 DIODE VARACTOR KV3201 2 11PF 2 D1 D5 3 211 0006 MPS A06 NPN 80V 5A 3W 100MHZ 1 Q1 3 211 5109 TSTR RF 2N5109 NPN 2 Q4 Q5 3 212 0310 TSTR FET N CHAN RF J3100 2 Q2 Q3 3 360 3300 CHOKE RF 3 3UH 380MA 9230 32 3 L1 L3 L6 3 364 0047 COIL MOLDED 47UH 2 L4 L5 3 370 0106 COIL MOD OSC L2 1 L2 4 555 0106 L...

Page 128: ...333 RES 330 OHM 2W 5 1 R19 2 210 2860 TSTR RF DU2860U 60W DMOS 1 Q4 2 213 6198 TSTR RF PWR 2N6198 1 Q3 2 219 3000 TSTR DARLINGTON SI NPN 2 Q1 Q2 2 227 0339 VR LM338K 5AMP ADJUSTABLE 1 U1 2 229 2830 AMP RF HYBRID MHW5342A 1 U2 2 330 0802 FUSE FAST ACTING 8A GBB 8 BUSS 1 2 360 0003 FERRITE BEAD 291 DIA 15 2 402 0000 TY RAP 1 2 402 0835 CLAMP CBL 3 8 1 2 407 0186 TOOL ADJ 8 T000 5 SPECTROL 1 2 407 30...

Page 129: ...23 6011 6 FLAT 310 X 160 X 030 1 2 423 8005 8 LOCK SPLIT 6 2 441 0184 STOFF 6 32 MALE FEMALE 3 8 1 2 450 0651 PLUG HOLE 5 16 1 2 455 0049 001 HEATSINK RF AMP FX50 1 2 471 0585 COVER RF AMP FX50 1 3 471 0585 009 COVER RF AMP UNSCREENED FX50 1 2 474 0301 PLATE FRT RF AMP PCB COVER 1 2 474 0302 PLATE BACK RF AMP PCB COVER 1 2 919 0105 001 ASSY PCB RF AMP FX 50 1 3 002 1034 CAP CER DISC 001UF 1000V 1 ...

Page 130: ...R21 3 103 4324 RES 4 32K OHM 1 4W 1 METAL 1 R2 3 103 4755 RES 47 5K OHM 1 4W 1 METAL 1 R3 3 103 4993 RES 499 OHM 1 4W 1 METAL 1 R18 3 103 5112 RES 51 1 OHM 1 4W 1 METAL 1 R7 3 103 7541 RES 7 50K OHM 1 4W 1 METAL 1 R16 3 110 3623 RES 36 OHM 1 2W 5 1 R6 3 130 2223 RES 22 OHM 2W 5 2 R9 R11 3 130 4723 RES 47 OHM 2W 5 1 R10 3 177 2034 RES TRMR 200 OHM VERT ADJ 1 R12 3 177 2045 RES TRMR 2K 10T TOP ADJ 3...

Page 131: ...CM 1 3 030 1053 CAP MYLAR FILM 1uF 100V RAD 4 C404 C405 C406 C407 3 042 3922 CAP MICA 390PF 100V 5 3 C401 C402 C403 3 100 1231 RES 121 OHM 1 4W 1 1 R401 3 229 0335 IC LM335 TEMPERATURE SENSOR 1 U401 3 360 0001 FERRITE BEADS F R 2643000301 13 FB401 FB402 FB403 FB404 FB405 FB406 FB407 FB408 FB409 FB410 FB411 FB412 FB413 3 417 0169 CONN 15 PIN 640503 1 AMP 1 J401 3 417 0299 SOCKET TO 3 PCB MT 3 XU402...

Page 132: ...621 1359 CBL COAX RG316 U 50 OHM 1 3 693 0002 SLVG 1 4 EXPANDO FR BLACK 1 1 961 0003 100 KIT HARDWARE RACK FX50 1 2 402 0001 TY RAP T B TY24M 1 1 4 DIA 4 2 420 0108 SCREW 10 32X 500 S S PHH 4 2 420 0508 SCREW 10 32X 500 S S FLH 8 2 420 8006 SCREW 8 32X 375 S S PH FLH UC 4 FOR CUSTOMER TO MOUNT OUTER SLIDE RAILS 2 420 8110 SCREW 8 32X 625 S S PHH 4 2 421 0102 10 32 KEP NUT 8 2 423 0001 WASHER FLAT ...

Page 133: ... 1200 FUSE 12A 250V CERAMIC SLO BLOW 1 2 334 0100 FUSE 1A MDL SLO BLO 250V 2 2 334 0300 FUSE 3AG 3A 125V SLOW BLOW 1 2 360 0003 FERRITE BEAD 291 DIA 2 2 360 6504 FUSE LINE FILTER MOD 120 240V 1 2 376 0050 XFMR POWER FX50 AM13377B 1 2 380 4600 FAN 4 1 2 1 2 380 5502 FILTER FAN 1 2 380 6307 FINGER GUARD FAN 4 125 CENTERS 1 2 400 0024 SHOCK MT MODULATED OSC FX50 1 2 402 0000 TY RAP 11 2 402 0008 MTG ...

Page 134: ... 40X 625 S S PH 4 2 420 6104 SCREW 6 32X 250 S S PH 8 2 420 6105 SCREW 6 32X 312 S S PH 14 2 420 6108 SCREW 6 32X 500 S S PH 1 2 420 6112 SCREW 6 32X 750 S S PH 2 2 420 6605 SCREW 6 32X 312 S S PH FH UC 11 2 420 8107 SCREW 8 32X 437 S S PHH 12 2 420 8116 SCREW 8 32X 250 S S PH FLH UC 4 2 421 1102 RIV BLD DOMED 3 32 2 2 421 1113 RIV CLOSED END 125 X 316L 1 2 421 4008 4 40 KEP NUT 8 2 421 6001 6 32 ...

Page 135: ...2 5 2 453 6701 CAP MTG BRKT MALLORY VR12 1 2 465 0090 101 ANGLE UPPER FRT PNL CE EXCITER 1 2 465 0091 100 ANGLE LOWER FRT PNL FX50 1 2 466 0093 ANGLE FRONT PANEL MOUNT FX50 2 2 467 0178 BOOT INSULATING FOR 360 6504 1 2 467 1003 OVERLAY FX50 1 2 469 0365 FINGER STOCK 1S197520A 32 2 469 0365 1 STRIP RFI SHIELD 2 3 469 0365 FINGER STOCK 1S197520A 2 75 2 469 0366 1 STRIP RFI SHIELD 1 25 4 3 469 0366 F...

Page 136: ...LE BLK FOR 25 DIA HANDLE 4 2 488 0010 LATCH LO PROFILE 27 10 501 50 2 2 520 0034 100 CHASSIS FX50 FX50E 1 2 591 0001 PLATE FCC ID 1 2 594 0095 LABEL 1EC LINE RCPT 700 0152 1 2 594 0250 LABEL CAUTION TOP COVER FM EXC 1 2 594 0500 LABEL DANGER 1 2 601 1802 WIRE AWG18 19 30 RED NOTE 0 25 2 611 1250 TUB HT SHK 1 8 0 01 2 690 1200 TUB BLK PVC 105C 1 2 0 354 2 700 0145 FILM 2 DOUBLE ADHESIVE 467 0 003 2...

Page 137: ...UF 100V RAD 4 C34 C38 C48 C54 3 031 1043 CAP MYLAR FILM 01UF 100V RAD 3 C9 C11 C40 3 031 2243 CAP MYLAR FILM 022UF 200V RAD 1 C26 3 038 4753 CAP PYST 47UF 100V 1 C44 3 040 2422 CAP MICA 240PF 3 C45 C46 C47 3 042 2531 CAP MICA 2500PF 500V 1 1 C62 3 042 3312 CAP MICA 33PF 500V 5 2 C65 C67 3 042 3922 CAP MICA 390PF 100V 5 6 C2 C17 C18 C19 C20 C36 3 042 5031 CAP MICA 5000PF 500V 1 1 C63 3 100 1031 RES...

Page 138: ...103 1215 RES 12 1K OHM 1 4W 1 METAL 1 R11 3 103 1331 RES 1 33K OHM 1 4W 1 METAL 2 R98 R100 3 103 1375 RES 13 7K OHM 1 4W 1 METAL 1 R101 3 103 1504 RES 1 5K OHM 1 4W 1 METAL 1 R28 3 103 1745 RES 17 4K OHM 1 4W 1 METAL 1 R82 3 103 1825 RES 18 2K OHM 1 4W 1 METAL 1 R92 3 103 2213 RES 221 OHM 1 4W 1 METAL 1 R33 3 103 2673 RES 267 OHM 1 4W 1 METAL 5 R7 R14 R38 R93 R94 3 103 3014 RES 3 01K OHM 1 4W 1 ME...

Page 139: ...1 METAL 2 R68 R80 3 103 8255 RES 82 5K OHM 1 4W 1 METAL 1 R35 3 103 8256 RES 825K OHM 1 4W 1 METAL 1 R56 3 175 1034 RES TRMR 1K VERT ADJ 1 R63 3 177 5044 RES TRMR 5K VERT ADJ 3 R69 R81 R91 3 177 5054 RES TRMR 50K VERT ADJ 1 R52 3 200 0009 DIODE ZENER 1N 4739A 2 D17 D19 3 203 4005 DIODE 1N4005 2 D16 D18 3 203 4148 DIODE 1N4148 7 D1 D2 D3 D4 D5 D6 D7 3 211 3904 TSTR 2N3904 4 Q1 Q2 Q3 Q4 3 220 0317 V...

Page 140: ...GRAMMABLE 5 P3 P4 P5A P5B P10 3 360 2200 CHOKE RF 2 2UH 550MA 2 L1 L2 3 364 0047 COIL MOLDED 47UH 1 L3 3 370 0002 XMFR RF MCL T4 1 NOTE 1 T1 3 390 0001 OSC XTAL PC MT TCXO 10MHZ 1 Y1 3 402 0000 TY RAP 2 3 407 0074 SPR LED 25 ODX 147 1D X 22L 5 3 413 1597 TERM TURRET 2 SHLDR 219 GOLD FLASH 5 3 417 0003 CONN HEADER 3 PIN 3 J3 J4 J10 3 417 0004 JACK TEST RIGHT ANGLE PC MT 1 TP1 3 417 0200 CONN HEADER...

Page 141: ...3 003 1054 CAP CER MNLY 1uF 50V 20 9 C5 C6 C7 C16 C25 C28 C30 C33 C37 3 014 1084 CAP LYTIC 100UF 50V INS 1 C15 3 014 1094 CAP LYTIC 1000UF 50V INS 2 C24 C29 3 023 1076 CAP LYTIC 10uF 50V STDUP 1 C17 3 023 1084 CAP LYTIC 100MFD 35V STDUP RAD 6 C26 C27 C31 C32 C35 C36 3 024 1064 CAP LYTIC 1UF 50V RAD 2 C11 C23 3 024 2274 CAP LYTIC 22UF 100V STDUP 1 C34 3 030 1033 CAP CER MOLDED 001UF 200V 10 2 C12 C...

Page 142: ... 1 4W 1 METAL 2 R82 R86 3 103 1504 RES 1 5K OHM 1 4W 1 METAL 1 R10 3 103 1561 RES 150K OHM 1 4W 1 METAL 1 R31 3 103 2212 RES 22 1 OHM 1 4W 1 METAL 1 R54 3 103 2241 RES 2 21K OHM 1 4W 1 METAL 1 R39 3 103 3324 RES 3 32K OHM 1 4W 1 METAL 1 R29 3 103 3325 RES 33 2K OHM 1 4W 1 METAL 3 R35 R40 R48 3 103 3631 RES 365 OHM 1 4W 1 METAL 1 R75 3 103 3924 RES 3 92K OHM 1 4W 1 METAL 2 R16 R18 3 103 4755 RES 47...

Page 143: ...N4751A 30V 1W 1 D6 3 201 4728 DIODE ZENER 1N4728 2 D29 D30 3 202 0502 RECT 3A 200V IN5402 1 D18 3 203 4005 DIODE 1N4005 14 D13 D14 D16 D17 D19 D20 D12 D15 D21 D22 D23 D24 D25 D26 3 203 4148 DIODE 1N4148 8 D1 D2 D3 D4 D8 D11 D28 D31 3 210 3906 2N3906 PNP 40V 2A 35W 250MHZ 2 Q3 Q5 3 211 3904 TSTR 2N3904 2 Q4 Q2 3 221 0358 AMP DUAL OP LM358 3 U1 U2 U3 3 227 0317 VR LM317T LM317KC 1 U5 3 227 0337 VOLT...

Page 144: ...DIP BURNDY 3 XU1 XU2 XU3 3 417 1404 SOCKET 14 PIN DIP 1 XU4 3 418 0900 CONN 9 PIN 640501 5 AMP 1 J10 3 420 6105 SCREW 6 32X 312 S S PH 3 3 423 6002 6 LOCK SPLIT 3 3 426 6000 PEM NUT 6 32 KFS2 632 3 3 455 7805 HEATSINK TO 220PKG LOW PROFILE 2 3 519 0107 001 PCB MACH P S CNTL FM 100C scan 1 2 919 0108 ASSY PCB METERING 1 3 001 5004 CAP CER DISC 5PF 500V NPO 2 C8 C11 3 003 1054 CAP CER MNLY 1uF 50V 2...

Page 145: ...00 R101 R102 R103 R104 R105 R106 R107 R16 3 100 1051 RES 10K OHM 1 4W 1 15 R1 R3 R23 R19 R29 R38 R42 R52 R60 R66 R67 R68 R69 R70 R71 3 100 1083 RES 10MEG OHM 1 4W 5 1 R26 3 100 1111 RES 118 OHM 1 4W 1 1 R110 3 100 1231 RES 121 OHM 1 4W 1 5 R78 R80 R82 R88 R108 3 100 1873 RES 1 8MEG OHM 1 4W 5 1 R59 3 100 2041 RES 2K OHM 1 4W 1 1 R40 3 100 2283 RES 22MEG OHM 1 4W 5 2 R21 R37 3 100 3051 RES 30 1K OH...

Page 146: ... 1 R63 3 103 2675 RES 26 7K OHM 1 4W 1 METAL 3 R22 R84 R86 3 103 2751 RES 27 4K OHM 1 4W 1 METAL 1 R45 3 103 3061 RES 301K OHM 1 4W 1 METAL 1 R24 3 103 3631 RES 365 OHM 1 4W 1 METAL 1 R83 3 103 4741 RES 4 75K OHM 1 4W 1 METAL 1 R43 3 103 4755 RES 47 5K OHM 1 4W 1 METAL 5 R57 R61 R62 R85 R96 3 103 4993 RES 499 OHM 1 4W 1 METAL 6 R6 R91 R93 R95 R7 R8 3 103 4996 RES 499K OHM 1 4W 1 METAL 1 R10 3 103 ...

Page 147: ... D21 D23 3 203 4148 DIODE 1N4148 15 D1 D2 D5 D6 D7 D8 D9 D10 D11 D12 D13 D15 D16 D17 D22 3 210 0271 TSTR FET J271 1 Q7 3 210 3906 2N3906 PNP 40V 2A 35W 250MHZ 3 Q3 Q4 Q5 3 211 3904 TSTR 2N3904 3 Q1 Q2 Q6 3 220 0317 VR LM317LZ TO92 1 U17 3 220 7136 A D 3 1 2 DIGIT LCD ICL7136CPL 1 U7 3 221 0074 AMP OP BIFET TLO74CW 2 U1 U2 3 221 4227 AMP DUAL OP 2 U4 U5 3 225 0004 IC CD4066BE 2 U3 U6 3 226 0392 RES...

Page 148: ... RED MV57164 INTEN G OR H 1 DS11 3 340 0107 KEYSWITCH SI20601H1 SECME NOTE 6 S1 S2 S3 S4 S5 S6 3 402 0000 TY RAP 1 3 413 1597 TERM TURRET 2 SHLDR 219 GOLD FLASH 7 E1 TP1 TP2 TP3 TP4 TP5 TP6 3 417 0172 SKT 20 PIN SINGLE ROW SAMTEC 2 3 417 0200 CONN HEADER 20 PIN 1 J14 3 417 0804 SOCKET 8 PIN DIP BURNDY 3 XU4 XU5 XU18 3 417 1404 SOCKET 14 PIN DIP 5 XU1 XU2 XU3 XU6 XU13 3 417 1604 SKT 16 PIN DIP 6 XU...

Page 149: ...4 CAP CER MNLY 1uF 50V 20 8 C304 C305 C306 C307 C308 C309 C310 C311 3 031 2033 CAP MYLAR FILM 0022uF 100V 10 2 C312 C313 3 038 4750 CAP POLY 47MFD 50V 10 OR BETTER 2 C324 C325 3 040 1022 CAP MICA 100PF 500V RAD 10 C314 C316 C318 C320 C322 C326 C327 C328 C329 C330 3 047 1035 CAP FIL EMI SUPPR 1000pF 3 PIN 3 FL312 FL313 FL319 3 100 1041 RES 1K OHM 1 4W 1 3 R302 R306 R307 3 100 1051 RES 10K OHM 1 4W ...

Page 150: ...FL309 FL310 FL311 FB312 FB313 FL314 FL315 FL316 FL319 FL320 FL321 FL322 FL323 3 417 0003 CONN HEADER 3 PIN 2 J308 J309 3 417 0039 VLX CONN BNC PCB VERT MOUNT VALOX BODY 5 J305 J301 J302 J303 J304 3 417 0200 CONN HEADER 20 PIN 1 J307 3 417 1276 CONN PCB 12 PIN 1 J306 3 417 2502 FER RCPT 25 PIN D FEMALE FERITE FILTER 1 J1 3 420 6105 SCREW 6 32X 312 S S PH 10 3 423 6002 6 LOCK SPLIT 20 3 426 6000 PEM...

Page 151: ...640521 0 AMP 1 3 417 0122 HSNG 20 POS MOD IV 3 87499 7 2 3 417 0123 HSNG 16 POS MOD IV 2 87499 9 1 3 417 0148 HSNG 10 POS MOD 1V 1 87499 7 1 3 417 0176 CONN 20 PIN FEM AMP 1 350245 9 1 3 417 0224 KEYING PLUG MOD IV 87077 AMP 3 3 417 1401 HOUSING SKT 14PIN AMP MOD IV 2 3 417 2379 CONN 155OC HOUSING AMP MR 1 3 417 8766 CONTACT CRIMP MOD IV 87809 1 72 3 418 0006 HSNG CONN 6 PIN 1 640510 AMP 1 3 418 0...

Page 152: ...5 3 979 9983 KIT BIND MAN FX 50 1 4 597 1050 INSTRUCTION MANUAL FX 50 FX 50E FM EXCITER 1 4 598 0010 001 BINDER 1 IN BLUE W CD POCKET 1 2 959 0203 ASSY MODL MODLTD OSC SBCM 1 3 008 1020 CAP FEEDTHRU 100PF 20 250V 1 C21 3 008 1033 CAP FEEDTHRU 1000PF 20 500V 2 C19 C20 3 040 6223 CAP MICA 620PF 300V 5 1 C23 3 360 0003 FERRITE BEAD 291 DIA 3 3 364 0002 CHOKE VK200 20 4B FERROXCUBE 1 L7 3 402 0000 TY ...

Page 153: ...DUP 1 C6 4 023 1084 CAP LYTIC 100MFD 35V STDUP RAD 2 C4 C7 4 040 1213 CAP MICA 12PF 500V 5 1 C2 4 042 3312 CAP MICA 33PF 500V 5 2 C1 C8 4 042 3922 CAP MICA 390PF 100V 5 9 C5 C9 C10 C11 C12 C13 C14 C17 C18 4 100 1031 RES 100 OHM 1 4W 1 METAL 2 R12 R6 4 100 1041 RES 1K OHM 1 4W 1 3 R7 R13 R14 4 100 1111 RES 118 OHM 1 4W 1 1 R22 4 100 4561 RES 453K OHM 1 4W 1 1 R10 4 103 1007 RES 1 MEG OHM 1 4W 1 MET...

Page 154: ...OIL MOLDED 47UH 2 L4 L5 4 370 0106 COIL MOD OSC L2 1 L2 5 555 0106 LABOR 370 0106 1 5 610 0026 SMALL TRANS LINE 0 708 4 409 0012 PAD TSTR 520 021 BIVAR TO 5 2 4 413 1597 TERM TURRET 2 SHLDR 219 GOLD FLASH 6 E1 E2 E3 E4 E5 E6 4 440 0018 STOFF ANTI ROT 7 32 RND X 1 4 4 4 519 0106 PCB BLANK MODLTD OSC scan 1 3 949 1050 ASSY CABLE MOD OSC SBCM 1 4 402 0051 TY RAP W FLAG 1 4 417 0165 HSNG 5POS MOD IV S...

Page 155: ...2 0835 CLAMP CBL 3 8 1 3 407 0186 TOOL ADJ 8 T000 5 SPECTROL 1 3 407 3000 COVER TSTR 3 3 415 1010 FUSE CLIP LITTLEFUSE 101002 4 3 417 0017 RECP BNC BULKHEAD UG 492A U 2 J17 J18 3 418 0010 INSULATOR MICA TSTR TO 3PKG 3 3 420 0305 SCREW 4 40X 375 BR PH SC 2 3 420 0509 SCREW 10 32X 500 BR SL PAN HD 1 3 420 4104 SCREW 4 40X 250 S S PH 4 3 420 6105 SCREW 6 32X 312 S S PH 13 3 420 6106 SCREW 6 32X 375 S...

Page 156: ...1 ASSY PCB RF AMP FX 50 1 4 002 1034 CAP CER DISC 001UF 1000V 1 C26 4 009 6813 CAP CER CHIP 68PF 500V 5 1 C43 4 024 3374 CAP LYTIC 33UF 35V STDUP 2 C23 C31 4 038 4753 CAP PYST 47UF 100V 2 C22 C30 4 040 3312 CAP MICA 33PF 350V 10 1 C35 4 040 5013 CAP MICA 50PF 500V 5 2 C37 C41 4 040 6813 CAP MICA 68PF 500V 5 1 C13 4 042 2000 CAP MICA 200PF 350V 10 4 C14 C15 C25 C36 4 042 3922 CAP MICA 390PF 100V 5 ...

Page 157: ...MR 200 OHM VERT ADJ 1 R12 4 177 2045 RES TRMR 2K 10T TOP ADJ 3299W 1 R17 4 201 2800 DIODE HOT CARRIER 2 D1 D2 4 211 3904 TSTR 2N3904 1 Q6 4 218 0032 TSTR TIP32A 2N6125 1 Q5 4 330 0200 FUSE 3AG 2 AMP 1 F1 4 360 0010 FERRITE TOROID 5961001101 1 L7 4 364 0002 CHOKE VK200 20 4B FERROXCUBE 2 L1 L4 4 364 0010 CHOKE MOLDED RF 10UHY 10 1 L3 4 364 0032 COIL MOLDED 032UH 1 L6 4 364 0051 COIL MOLDED 051UH 1 ...

Page 158: ...412 FB413 4 417 0169 CONN 15 PIN 640503 1 AMP 1 J401 4 417 0299 SOCKET TO 3 PCB MT 3 XU402 XQ401 XQ402 4 519 0410 004 PCB MACH REGULATOR FM 100C 1 4 601 0022 WIRE AWG22 BUSS 0 8 3 949 0144 ASSY WIRE HRNS FX50 RF AMP SBCM 1 4 402 0000 TY RAP 11 4 410 0060 LUG TERM 10 RING CRIMP 10 12G 1 4 410 1553 LUG TERM 10 RING CRIMP 16 22 1 4 417 0036 PIN CONN AMP 350967 1 19 4 417 0053 SKT CONN 641294 1 AMP 19...

Page 159: ...A 4 3 420 0108 SCREW 10 32X 500 S S PHH 4 3 420 0508 SCREW 10 32X 500 S S FLH 8 3 420 8006 SCREW 8 32X 375 S S PH FLH UC 4 FOR CUSTOMER TO MOUNT OUTER SLIDE RAILS 3 420 8110 SCREW 8 32X 625 S S PHH 4 3 421 0102 10 32 KEP NUT 8 3 423 0001 WASHER FLAT 10 SST 438 X 203 X 065 8 3 459 0138 001 RETAINER SLIDE BRKT 2 3 469 0415 SLIDE EXCITER CHASSIS 1 3 470 0102 BRKT MTG EXCITER SLIDES 4 3 701 0005 ANTIS...

Page 160: ...nics 13 RF Technical Services Contact Information RF Technical Services Telephone 217 224 9617 E Mail rfservice bdcast com Fax 217 224 6528 web www bdcast com 14 Drawings The following pages present the FX 50 E Exciter drawings ...

Page 161: ...149 2011 Broadcast Electronics Figure 14 1 OPTIONAL LOW PASS FILTER ASSEMBLY ...

Page 162: ...150 2011 Broadcast Electronics Figure 14 2 EXCITER FRONT RAIL MOUNTING APPLICATIONS ...

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