Electro-Metrics EM-2115 Instruction Manual Download Page 109

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EM-2115 4.0 SERVICE, MAINTENANCE, CALIBRATION

(EM2115S4-41)

Figure 4.3

Top View EM-2115 (A2 RF Tuner Assembly Cover Removed)

FIGURE 4.4 BOTTOM VIEW EM-2115 CALLOUT NUMBER CODE

(1)

A14 Power Supply Compartment (Shielded)

(2)

A15A3 Power Supply Filter Board

(3)

A16 Interface Board

(4)

A15A3J1

(5)

A2 RF Tuner Assembly

(6)

A12 Prescaler Assembly

(7)

A7 Card Rack Assembly

(8)

A1A3 Microprocessor Board

(9)

A1A2 Front Panel Board

(10)

A1A1A1 Main Tuning Assembly

(11)

A1A3-J9

(12)

A1A3-J8

(13)

Moter/Clutch Assembly

(14)

A2A16A6 RF Attenuator

(15)

A6 0.1 Narrowband Filter Module

(16)

A5 Discriminator Module

(17)

A3 IF Amplifier Module

(18)

A4 Log Detector Module

(19)

Submodule Assembly

(20)

A13 Rear Panel Compartment (Shielded)

Summary of Contents for EM-2115

Page 1: ...INSTRUCTION MANUAL INTERFERENCE ANALYZER MODEL EM 2115 EMC 30...

Page 2: ...BIDDEN 2002 ELECTRO METRICS CORP INTERFERENCE ANALYZER ELECTRO METRICS MODEL EM 2115 EMC 30 SERIAL NO N A ELECTRO METRICS CORPORATION 231 Enterprise Road Johnstown New York 12095 Phone 518 762 2600 Fa...

Page 3: ...kmanship This warranty is limited to the repair of or replacement of defective parts and is void if unauthor ized repair or modification is attempted Repairs for damage due to misuse or abnormal opera...

Page 4: ...Local Mode Of Operation S2 6 2 4 1 Amplitude And Frequency Measurement S2 6 2 4 2 Amplitude Accuracy Correction Factor S2 6 2 4 3 Input Attenuation Selection S2 8 2 4 3 1 Input Attenuation Selection C...

Page 5: ...3 3 4 Performance Test Procedures S3 3 3 4 1 CW Voltage Accuracy S3 3 3 4 2 Broadband Voltage Accuracy S3 4 3 4 3 Frequency Accuracy S3 5 3 4 4 Attenuator Accuracy S3 6 3 4 5 CW Sensitivity S3 7 3 4...

Page 6: ...tment Verification S4 16 4 4 5 1 IF Amplifier Bandwidth Check Adjustment S4 17 4 4 5 2 IF Amplifier Gain Check Adjustment S4 19 4 4 6 Preamplifier Board A2A16A2 Adjustment Verification S4 20 4 4 7 Tun...

Page 7: ...ode Switch A 3 A 5 1 1 Scan Mode Indicator A 3 A 5 2 Start Switch A 3 A 5 3 Scan Width Control A 4 A 5 4 Scan Rate Control A 4 A 5 5 Marker Switch A 5 A 6 0 Bandwidth Switch A 5 A 6 1 Bandwidth Indica...

Page 8: ...Module C 5 C 5 0 A3 IF Amplifier Module C 5 C 6 0 A6 0 1 Narrowband Filter Module C 7 C 7 0 A4 Log Detector Module C 7 C 8 0 A8 Detector Board C 8 C 9 0 A5 Discriminator Module C 9 C 10 0 A10 Tune Co...

Page 9: ...E 24 E 4 2 Tunable Rejection Filters E 25 E 5 0 Line Impedance Stabilization Networks E 25 E 5 1 LISNs Available For Use With EM 2115 E 25 E 6 0 CIG 25 E 26 E 7 0 EM 2116 Battery Pack Charger E 27 E 8...

Page 10: ...wband Determination S2 21 2 5 Device Dependent Command Summary S2 23 4 1 Log Detector Signal Input Level Vs DC Output Voltage S4 14 4 2 Single Mode Sweep Times S4 26 4 3 ContinuousMode Sweep Times S4...

Page 11: ...ctor Chart E 9 E 5 EM 6892 Typical Antenna Factor Graph E 14 E 6 EM 6893 Typical Antenna Factor Chart E 15 E 7 EM 6981 Typical Transfer Impedance Factor Chart E 19 FIGURE TITLE NUMBER H 1 Impulse Gene...

Page 12: ...NS FIGURE TITLE NUMBER H 22 Front Panel P C Board A1A2 R 9182 H 23 Interface P C Board A16 R 8631 C H 24 Microprocessor P C Board A1A3 R 8611 1 H 25 Interconnection Diagram R 8718 A H 26 Power Supply...

Page 13: ...ng 30 C 35 C 86 F 95 F 0 1 2 Rack Mounting To rack mount the EM 2110 using slide mounts use the following procedure a Pry off the black decorative covers at each end of the handles b Remove the one 1...

Page 14: ...ix 6 8 32 X 1 4 screws h The unit is now ready for installation into a console or rack containing a slide mounting assembly i To remove slide mounts and install handles reverse the procedure given abo...

Page 15: ...uasi peak true rms and slideback a True Average Detector The True Average detector provides the true time averaged value of the amplitude of any signals appearing at the RF input that are within the I...

Page 16: ...nalyzer type presentations are available by connecting the receiver to a conventional oscilloscope Sweep features include variable scan rate and variable dispersion 0 1 to 20 100 at click stop of the...

Page 17: ...idths Refer to the following table SPECIFICATION LIMITS 6 dB IF BANDWIDTH FREQUENCY RANGE MHz IF BANDWIDTHS SPECIFICATION LIMITS 0 009 0 150 1 3 200 Hz 20 30 Hz 1 0 kHz 100 Hz 10 kHz 0 120 1 1 4 6 1 0...

Page 18: ...ED display indicates actual frequency range covered Frequency Display 6 Digit inch LED Frequency Accuracy 0 1 1 count 0 2 resolution BW Frequency Tuning Dual 10 turn coarse and 100 turn medium per ban...

Page 19: ...f detected video signal nominal 150 ms time constant Crest Factor 30 dB minimum Slideback Metered threshold biased envelope detector for visual or aural extinction of peak levels Calibrator Impulse ge...

Page 20: ...greater Vertical 0 to 1 5 v nominal into 1 k or greater for 60 dB Selectable between peak quasi peak rms aver age or slideback Selectable marker for spec trum analysis Antenna Control Connector Provid...

Page 21: ...0 Hz nominal Optional EM 2126 Battery Pack Charger Mod ule required for field operation Environmental Designed to meet MIL T 28800C Type III Class 5 Style E environmental requirements Temperature Non...

Page 22: ...500 kHz 37 30 20 28 6 0 5 1 1 MHz 37 30 20 28 7 1 1 2 4 MHz 37 30 20 28 8 2 4 5 5 MHz 30 20 10 20 9 5 5 12 5 MHz 30 20 10 20 10 12 5 30 MHz 30 20 10 20 11 25 50 MHz 13 4 6 18 12 50 100 MHz 12 2 8 20 1...

Page 23: ...BANDWIDTH 6 dB 9 kHz SENSITIVITY BANDWIDTH 6 dB 120 kHz 1 9 35 kHz 30 2 35 75 kHz 30 3 70 150 kHz 30 4 120 250 kHz 14 5 250 500 kHz 14 6 0 5 1 1 MHz 14 7 1 1 2 4 MHz 14 8 2 4 5 5 MHz 14 9 5 5 12 5 MHz...

Page 24: ...VOLTMETER 500 ms 160 ms 550 ms MECHANICAL TIME CONS TANT OF CRITI CALLY DAMPED METER2 160 ms 160 ms 100 ms PRE DETEC TION OVER LOAD FACTOR 24 dB 30 dB 43 5 dB POST DETEC TION OVER LOAD FACTOR 12 dB 1...

Page 25: ...t the selector card displays the correct voltage for the AC power source be ing used Operation using a 220 VAC power source with the module set for 110 VAC can cause extensive circuit damage 2 1 2 Tun...

Page 26: ...1 105 130 VAC 50 60 Hz 2 210 260 VAC 50 60 Hz 2 2 2 Power Source Selector The Power Source Selector is incorporated as part of the power input connector The number visible in the window indicates the...

Page 27: ...ion cable from the Battery Module connects to A14J3 on the rear panel of the receiver Refer to the EM 2126 instruction manual for complete operating and charging instructions 2 3 Operating Procedures...

Page 28: ...by a remote command signal via the rear panel IEEE 488 GPIB Interface Bus connector Whenever a calibration sequence is initiated the UNCAL Indicator incorporated in the CAL Switch is lighted for the d...

Page 29: ...calibration se quence by pushing the front panel CAL Switch The UNCAL indicator will be lighted for the duration of the calibration sequence approximately 2 3 seconds NOTE 1 The receiver will not cali...

Page 30: ...ve amplitude indication only 2 4 2 Amplitude Correction Factor For signals close to the noise level of the receiver a correction factor must be added to the meter reading to obtain an accurate amplitu...

Page 31: ...ELECTRO METRICS EM 2115 2 0 OPERATING INSTRUCTIONS EM2115S2 7 Figure 2 1 Correction Factor Graph For Signals Near Noise...

Page 32: ...4 3 1 Input Attenuation Selection Criteria The best sensitivity versus dynamic range for the receiver is obtained whenever the input attenuator is adjusted to the lowest setting that does not result...

Page 33: ...F bandwidth setting unless maximum selectivi ty or maximum narrowband broadband sensitivity is required Use a combination of medium and narrowest bandwidths when measuring a signal to de termine the f...

Page 34: ...r compared to narrowband signals thus they often need to be classified separately MIL STD 461 has traditionally required separate measurements of broadband and narrowband signals and noise with differ...

Page 35: ...iplex transmissions When the modulation spectrum of a signal is narrower than the bandwidth of the receiver it is classified as being narrowband and the broadband correction factor is not required The...

Page 36: ...input to the receiv er A Sample And Hold circuit is used to hold the peak level reading until the detector is reset dumped by the Dump circuit The length of the hold time is determined by front panel...

Page 37: ...he periodic resetting dumping of the Peak De tector circuit Any overload indication either false e g caused by transients during Frequency Range switching or true and corrected e g increasing input at...

Page 38: ...ication establishes the IF bandwidths verus frequency quasi peak detec tor rise and decay times and the metering time constants Refer to Table 1 4 Page 1 9 for the CISPR characteristics of the receive...

Page 39: ...lse Generator in dB V MHz to obtain the corresponding CISPR Quasi Peak reading in dB V on the digital meter of the EM 2115 2 4 6 2 1 Quasi Peak Measurement Technique When making Quasi Peak measurement...

Page 40: ...l then be the CISPR level into the 50 input impedance of the EM 2115 If any pickup devices antennas probes etc are used the cor rection factors of the device must be added to the indicated meter readi...

Page 41: ...normal for the RMS and Average detector modes of the Detection Switch Select the IF bandwidth required for the Frequency Range being used Always calibrate the EM 2115 before taking any measurements re...

Page 42: ...ocedure given for the RMS Detector 2 4 6 3 1 2 4 6 5 Slideback Detector The Slideback Detector is an envelope detector with the addition of an adjustable DC threshold voltage to backbias a diode envel...

Page 43: ...Range selected and set the Threshold Control FULL CCW c Set the EM 2115 for maximum dynamic range using the procedure in 2 4 6 2 1 Step c d With the signal tuned in hold the earphones to your ear and...

Page 44: ...iver to obtain the maximum amplitude of the signal in question and note the amplitude on the front panel digital meter this will be the reference point c Tune the receiver lower in frequency from the...

Page 45: ...t Commands are listed in Sec tion 2 5 5 In each case listed the EM 2115 is a listener as defined in the IEEE Std 488 1978 Some of the functions controlled through the Bus are a Bus Address j Dump Comm...

Page 46: ...exceptions STATUS and FREQUENCY READ any of the commands noted in Table 2 1 will automatically switch the EM 2115 to the Remote computer Mode of operation from the Local Mode of operation The STATUS a...

Page 47: ...mmon commands may be trivial TABLE 2 5 DEVICE DEPENDENT COMMAND SUMMARY FUNCTION COMMAND DESCRIPTION FREQUENCY RANGE BP Changes frequency range where 0 to 15 AUDIO AM FM BFO Selects AM Audio Selects F...

Page 48: ...k Detector for 1 ms and dwells for 10 ms before meter read Dumps Peak Detector for 1 ms and dwells for 30 ms before meter read Dumps Peak Detector for 5 ms and dwells for 10 ms before meter read Dumps...

Page 49: ...ed dwell time Tuning the EM 2115 through the bus also forces a reading of the A D converter but after a preset BW delay Each time the EM 2115 is set as a talker the microprocessor outputs the DVM read...

Page 50: ...ll connnec tions to the X Y recorder are thru the 11 pin Plotter Connector A13J3 on the rear panel 2 6 1 EM 2115 X Y Recorder Calibration NOTE For the following procedure it is assumed that the contro...

Page 51: ...ata recording the following procedure is based on the Scan Mode set for SIN GLE b Set the Scan Width Control at the setting desired 1 FULL CCW FULL BAND an intermediate setting 2 FULL CW MIN c Set the...

Page 52: ...o accurately record the peak amplitude of a response 2 Quasi Peak Detector Mode Mid range setting of the Scan Rate Control is normally used to accurately record the ampli tude of a response 3 RMS and...

Page 53: ...change the Blanking Pulse polarity For information on obtaining access to the PC Board refer to Section IV Service Maintenance and Calibration Para 4 2 If any additional assistance is required contact...

Page 54: ...the CAL po sition e The Scan Width Control is used to set the sweep width of the spectrum display in the Continuous Mode of operation 1 When set to FULL BAND click stop the sweep width is 100 FULL BA...

Page 55: ...will move up the CRT display until the trace line intersects the peak of the signal in ques tion Since the digital indication of the receiver matches the trace level increase on the CRT dis play the a...

Page 56: ...As part of the repair procedure to locate and isolate malfunctioning circuits 3 3 Preliminary 3 3 1 Precautions a Verify that the Power Source selector card is set for the AC power source being used...

Page 57: ...lowing front panel controls will remain at the settings indicated throughout the performance tests of Sec tion 3 4 AFC OFF FINE TUNE Control Mechanical center THRESHOLD Control FULL CCW SCAN MODE MANU...

Page 58: ...hree test frequencies per frequency range selected using the method described in para graph 3 3 3 a Set the front panel controls as follows DETECTOR AVERAGE BANDWIDTH Narrowest position of the frequen...

Page 59: ...ENCY RANGE Initial 0 009 0 035 MHz FREQUENCY INDICATION Initial 0 022 MHz Midrange frequency point of Frequency Range 1 b Perform the calibration sequence described in 3 4 1 Step b c Connect the outpu...

Page 60: ...e selected ATTENUATION 40 dB FREQUENCY RANGE 0 009 0 035 MHz b Perform the calibration sequence described in 3 4 1 Step b c Apply a CW signal at the test frequency selected to the RF Input of the EM 2...

Page 61: ...ing with the external Step Attenuator set for 0 dB of attenuation and the in ternal EM 2115 ATTENUATION set for 100 dB increase the external attenuation in 20 dB steps while simultaneously decreasing...

Page 62: ...residu al noise level Record the level of the signal generator in dB V minus all ex ternal attenuation required to obtain the 3 dB meter reading This is the CW sensi tivity at the test frequency and f...

Page 63: ...tion Refer to Section I Table 1 1 EM 2115 Specifications Equipment required Impulse Generator This test procedure is performed at three test frequencies per frequency range selected using the method d...

Page 64: ...nter conductor positive lead of the rear panel Vertical Output BNC Connector A13J9 and ground negative lead c Apply a 0 100 MHz CW signal at an input level of 40 dB V to the EM 2115 Input Connector Pe...

Page 65: ...Equipment required Signal Generator a Set the front panel controls as follows DETECTOR AVERAGE SAMPLE TIME Control Mid range FREQUENCY RANGE 0 009 0 035 MHz FREQUENCY INDICATION 0 220 MHz BANDWIDTH 2...

Page 66: ...selected g Repeat Steps b thru f for the mid frequency points of Frequency Ranges 2 15 us ing the following information IF Frequency Vs Frequency Range 0 009 0 070 MHz 175 kHz 0 070 0 500 MHz 1st IF...

Page 67: ...e 60 dB V reference indication and add 30 dB to the difference This figure will be the IF Rejection for the Frequency Range selected g Repeat Steps b thru f for the mid frequency points of Frequency R...

Page 68: ...EM 2115 3 0 PERFORMANCE CHECK EM2115S3 13...

Page 69: ...rce voltage is present on the front panel power switch c Use caution when making power on measurements to prevent inadvertent shorts and possible damage to circuit components d To prevent possible dam...

Page 70: ...eiver bottom side up b Remove the five retaining screws 4 40 x 3 16 that secure the cover to the receiv er c Slide the cover back and out of the slots holding the cover in place d To replace the cover...

Page 71: ...ear of the RF Tuner e Pull the RF Tuner slightly back then up and out of the receiver f To install an RF Tuner reverse the above procedure 4 2 2 1 RF Tuner Top Cover Removal a Remove the RF Tuner from...

Page 72: ...from A16J2A 2 A4P1A from A16J1A 3 A5P1B from A16J1B 4 A6P2B from A16J2B 5 A2J3 flexible coaxial cable from RF Tuner 6 J1 flexible coaxial cable from main bulkhead rear 7 J2 flexible coaxial cable fro...

Page 73: ...y A1 Removal a Remove the top and bottom covers b Remove the four two top corner two bottom corner flat head screws 4 40 x 3 16 that secure the Front Panel Assembly into the receiver c Remove the rigi...

Page 74: ...rews 4 40 x 3 16 two each top and bottom that secures the Prescaler Module to the front bulkhead e The Prescaler Module is now free for removal from the receiver f To install a Prescaler Module revers...

Page 75: ...receiver b The receiver is operated from a 120 VAC 50 60 Hz power source NOTE For users outside the continental USA the procedures in this manual can be performed using 220 VAC 50 60 Hz with no chang...

Page 76: ...mote Connector A13J2 A13J2 L RAW 21 0 VDC 3 0 VDC A13J2 M RAW 18 5 VDC 3 0 VDC A13J2 d 12 0 VDC 0 1 VDC A13J2 c 12 0 VDC 0 1 VDC A13J2 G 5 0 VDC 0 1 VDC 2 RF Tuner Module A2 A2TP 1 12 0 VDC 0 1 VDC NO...

Page 77: ...to the specification limits stated The specification range limit for the 7 VDC supply is 6 6 to 8 0 VDC if the 7 VDC must be adjusted above these limits in order to obtain the 6 VDC limits check for...

Page 78: ...e sided extension board ECB 30 4 4 2 1 Signal Amplitude Digital Meter Adjustment Verification a Set the front panel controls as follows DETECTOR AVERAGE SAMPLE TIME CONTROL Mid range ATTENUATION 0 dB...

Page 79: ...0 022 MHz BANDWIDTH 9 10 kHz b Place the Detector Board A8 onto the 36 pin double sided extension board and remove the cable from A8J1 Log Input c Connect an external DC power source DC power supply...

Page 80: ...quired Signal Generator Digital Voltmeter 10 dB Step Attenuator 36 pin double sided extension board ECB 30 a Loosen the eight quarter turn fasteners that secure the Submodule Assembly into the receive...

Page 81: ...ve the external input and reconnect the subminature coaxial cable to A4J4 NOTE The specification limit allows a 2 dB compression for the 20 dB increase in signal level e i 18 dB increase in front pane...

Page 82: ...3 Connect the Signal Generator setup to A4J1 and apply a 8 7 MHz cw signal at an input level of 91 dB V Refer to Table 4 1 for the signal input levels 4 At the end of this step remove the external in...

Page 83: ...eps f and g until no further adjustments are required i Remove the subminiature coaxial cable from A6J2 Connect a Signal Generator via a 10 dB Step Attenuator to A6J2 Set the Signal Generator for a 1...

Page 84: ...bmodule Assembly lay a piece of masonite or similar material across the receiver and set the Submodule Assembly on it A6 Narrowband Mod ule side face up Take care not to strain or break the cabling or...

Page 85: ...r 1 kHz Middle IF Bandwidth of the 175 kHz IF channel Verify that IF center frequency is at 175 00 kHz If not adjust A3A1 L2004 h Using the procedure in Step d check the 1 kHz IF Bandwidth for the 175...

Page 86: ...s DETECTOR PEAK BANDWIDTH Wideband position of the frequency range selected ATTENUATION 0 dB FREQUENCY RANGE 0 009 0 035 MHz FREQUENCY DISPLAY 0 022 MHz b Place the Detector Board A8 onto the 36 pin d...

Page 87: ...justments are A6R37 and A6R26 h Set the Frequency Range to 20 45 MHz 11 and repeat Steps c thru f for the 8 7 MHz IF channel except for the following 1 Apply a 8 700 MHz signal at an input level of 75...

Page 88: ...ion board and connect a Digital Voltmeter to A8 16 f Turn on the receiver Leave the receiver in the UNCAL mode e g UNCAL in dicator on g Set the front panel controls as follows DETECTOR PEAK BANDWIDTH...

Page 89: ...mum indication on the voltmeter n The Digital Voltmeter monitoring the voltage on A8 16 should indicate 1 50 VDC 0 023 VDC At the end of this step reconnect the subminiature coaxial ca ble to A2A16A2...

Page 90: ...ltmeter should indicate 8 0 0 1 VDC If not adjust A10 R82 d Measure the voltage on A10 23 24 the voltmeter should indicate 8 0 0 1 VDC e Monitoring the voltage on A10 31 32 vary the Main Tuning Contro...

Page 91: ...rporated on A2A16A2 Equipment required Digital Voltmeter 36 pin double sided extension board ECB 30 a Remove the RF Tuner Module A2 from the receiver refer to Section 4 2 2 and next remove the top cov...

Page 92: ...til no further adjustments are required 4 4 9 Sweep Board A11 Adjustment Verification Equipment required Digital Voltmeter Oscilloscope 36 pin double sided extension board ECB 30 a Place the Sweep Boa...

Page 93: ...s SCAN RATE SETTING SWEEP TIMES PER BANDWIDTH seconds Specification Limit 20 WIDEBAND MIDDLE NARROW CAL 30 200 3200 MAX 0 3 2 32 NOTE To verify the longer sweep times use a time ratio method Example F...

Page 94: ...it be removed and returned to Electro Metrics for repair or replacement Equipment required Signal Generator a Set the front panel controls as follows DETECTOR PEAK BANDWIDTH Wideband position of the...

Page 95: ...PLAY PRESET NUMBER 0 1 LO FREQUENCY INPUT MHz LO FREQUENCY INPUT LEV EL dB V FRONT PANEL FREQUENCY DISPLAY READING MHz 0 1 1 9 82505 0 200 90 0 0 02498 2 9 82507 0 230 90 0 0 05500 3 8 40079 1 700 90...

Page 96: ...6 or A12 J3 A1A3 J5 may be defective h If the Frequency Display readings are in error or not present in Steps e and or f the Microprocessor Board A1A3 may be at fault Table 4 5 Microprocessor Board A1...

Page 97: ...cable to RF Tuner 10 A2J5 flexible coaxial cable to RF Tuner d Turn on the receiver Do Not Calibrate The EM 2115 i e by pushing the front panel CAL Switch Leave the receiver in the UNCAL mode e i UNCA...

Page 98: ...2A16A1 T2001 175 kHz Mixer Adjust for a peak indication on the front panel analog meter e Repeat Steps b thru d using the following information 1 Set the Frequency Range to 2 4 5 5 MHz 2 Set the Frequ...

Page 99: ...pins 8 22 RF Input adjustments opposite contact pins 1 7 a Set the front panel controls as follows DETECTOR PEAK BANDWIDTH NARROWEST position of the fre quency range selected ATTENUATION 40 dB FREQUEN...

Page 100: ...meter the front panel digital meter should indicate 40 dB V 1 0 dB Only when the RF frequency band amplitude level does not meet the stated specification lim its should the following procedure be perf...

Page 101: ...he Low column for RF Ad justments for 40 dB V 2 0 dB 4 Apply a CW signal at the high end frequency for RF Frequency Band 1 0 035 MHz at an input level of 40 dB V 5 Tune the receiver for a maximum indi...

Page 102: ...onent 1 8 MHz 4 4 11 5 RF Frequency Bands 10 15 A2A10 A2A15 Proper operation of RF Frequency Ranges 10 15 depends upon the arrangement of the internal components and short lead lengths Due to the crit...

Page 103: ...Down 4 AFC Switch 5 Frequency Range Display 6 Scan Mode Switch 7 Frequency Display 8 Bandwidth Selection Switch 9 Digital Meter Signal Amplitude Display 10 Cal Switch Uncal Indicator 11 Analog Meter T...

Page 104: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 36...

Page 105: ...Strip 5 A13J5 AM Video Connector BNC 6 A13J7 Blanking Output Connector BNC 7 A13J8 Horizontal Output Connector BNC 8 13J10 Pre IF Output Connector BNC 9 A13J11 Post IF Output Connector BNC 10 A13J9 V...

Page 106: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 38...

Page 107: ...riminator Module 7 A6 0 1 Narrowband Filter Module 8 Moter Clutch Assembly 9 A1P6 J6 Front Panel Power Connector 10 A1A3 Microprocessor Board 11 A1A2 Front Panel Board 12 A7 Card Rack Assembly 13 A1M1...

Page 108: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 40...

Page 109: ...oard 3 A16 Interface Board 4 A15A3J1 5 A2 RF Tuner Assembly 6 A12 Prescaler Assembly 7 A7 Card Rack Assembly 8 A1A3 Microprocessor Board 9 A1A2 Front Panel Board 10 A1A1A1 Main Tuning Assembly 11 A1A3...

Page 110: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 42...

Page 111: ...2115 FIGURE 4 5 REAR VIEW EM 2115 CALLOUT NUMBER CODE A14 POWER SUPPLY ASSEMBLY REMOVED 1 Grounding Strip 2 A15A1 J3A B 3 A15A1 Power Supply Filter Interconnect Board 4 A15A1 J1 5 A15A1 U2 6 A15A1 U2...

Page 112: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 44...

Page 113: ...SUPPLY ASSEMBLY EM 2115 CALLOUT NUMBER CODE 1 A14T1 AC Power Transformer 2 A14J2 AC Power Input Connector Fuse Holder Power Selector 3 A14C1 9000 F 40 VDC 4 A14C2 9000 F 40 VDC 5 A14 Heatsink Assembly...

Page 114: ...EM 2115 4 0 SERVICE MAINTENANCE CALIBRATION EM2115S4 46 Figure 4 6 A14 Power Supply Assembly EM 2115 B A M C P N L D R V U K...

Page 115: ...NNECTOR A13J1 PIN DESIGNATION FUNCTION A SU1 B GROUND C SU2 D RAW E SU3 F BD 1000 DETENT G 12 VDC FILTERED H BD 0100 DETENT J SU4 K BD 0010 L SU5 M BD 0001 N SU6 P SUS 1 R SUS 2 S SPARE T SPARE U SPAR...

Page 116: ...M2115S4 48 A13J3 PLOTTER CONNECTOR A13J3 PIN DESIGNATION FUNCTION A SPARE B X OUT 0 1 5 V C SHIELD GND D PEN LIFT COIL N O E X COMM GND F Y COMM GND H Y2 OUT J SPARE K SPARE L SPARE M Y1 OUT Figure 4...

Page 117: ...the Frequency Display corresponding to the PIA that does not agree The error may be caused by any number of things including a A defective PIA b A failure in the circuit being driven by the PIA c A fa...

Page 118: ...the Microprocessor Assembly Battery voltage should be greater than 3 0 VDC If battery is okay proceed to b NOTE 1 1 On the EM 2115 if the battery BR 1 fails or is momentarily shorted the RAM will los...

Page 119: ...0 1 VDC the microprocessor should go through a normal power on front panel LED indicator test sequence and return to operating normal ly The front panel LED indicators may be totally out of sequence a...

Page 120: ...AUSE 3 a Failed PIA In example given PIA 4 or U24 b Output of PIA is being loaded or affected by the circuit which the PIA is control ling NOTE 3 Refer to Table 4A 2 Address MAP to translate PIA numbe...

Page 121: ...EPROM A1A3 U7 E000 FFFF 8k x 8 EPROM A1A3 U6 SECONDARY AD DRESSES A000 PIA 1 ATTEN CON TROL FREQ CON TROL EM 2110 EM 2115 A1A3 U26 A200 PIA 2 A1A3 U25 A400 PIA 3 A1A3 U22 A600 PIA 4 A1A3 U24 A800 PIA...

Page 122: ...dB of RF AT TEN J1 27 b1 Digit Select Freq Counter a2 30 dB of RF AT TEN J1 25 b2 Digit Select Freq Counter a3 40 dB of RF AT TEN J1 23 b3 Digit Select Freq Counter a4 10 dB of IF AT TEN J1 24 b4 Dig...

Page 123: ...gic J1 21 b4 Detent J1 20 a5 0 1 NB Logic J1 19 b5 Sweep Width Log ic detent J3 4 a6 Band Step DOWN J1 15 b6 Reverse Sweep J2 15 a7 Band Step UP J1 17 b7 AFC FT Sensitivi ty J2 8 PIA 4 U24 PIA 4 U24 a...

Page 124: ...2115 DVM CONTROL Bit 1 b6 Switching Unit 1 Select a7 CISPR EM 2115 DVM CONTROL Bit 2 b7 Switching Unit 2 Select PIA 6 U23 PIA 6 U23 a0 a0 a7 b0 b0 b7 a1 Low Order D A b1 High Order D A a2 Converter b2...

Page 125: ...computer operation for a total attenuation range of 100 dB A 2 1 Attenuation Switches Type Momentary pushbutton switch Number 2 Indicator LED integrated into Increase Attenuation switch only Color Red...

Page 126: ...ose range is approximately 0 1 of the main Tuning Control range A 3 3 Frequency Display Type Six digit LED display Color Red Function Indicates the tuned frequency of the receiver in MHz The accuracy...

Page 127: ...g is controlled by the front panel tuning controls b Continuous Used in conjunction with an external oscilloscope the sweep is automati cally started and continuously repeated Sweep speed is determine...

Page 128: ...junction with the IF bandwidth selected Varible from 0 1 to 3000 seconds Single Sweep mode Switch Position Mark ings CAL FULL CCW MAX FULL CW a CAL click stop FULL CCW Maximum sweep time slowest sweep...

Page 129: ...Indicator None Function To select one of five IF bandwidths 6 dB 200 Hz 1 kHz 9 10 kHz 100 120 kHz and 1 MHz depending upon the frequency range selected Only three bandwidths are accessible for any o...

Page 130: ...rements that conform to ANSI C63 2 1980 CISPR Publication 16 and related VDE requirements Refer to Table 1 4 Section I Page 1 10 for complete pass band and time con stant specifications b 1 Sample Tim...

Page 131: ...ay peak detector circuit that in conjunction with the Threshold Control provide a variable bias for aural or video extinction of peak level signals e 1 Threshold Control Type Cermet single turn 280 ro...

Page 132: ...Color Red Function Used to initiate the calibration sequence The switch incorporates an LED indicator that functions as an UNCAL indicator Whenever a calibration sequence is initiated the UNCAL indic...

Page 133: ...t the front panel Phone Jack A 10 2 Audio Volume Control Type Cermet single turn 280 rotation 100 k Function Used to adjust the audio output level to the front panel Phone Jack A 11 0 Local Switch Typ...

Page 134: ...5 APPENDIX A DESCRIPTION FRONT PANEL CONTROLS EM2115A 10 Color Red Function Indicates the Remote mode of operation is selected A 12 0 Power Switch Type Two cycle pushbutton switch Function Self explan...

Page 135: ...Standard Function Self explanatory B 2 0 Rear Panel Connectors The following is a description of the rear panel connectors for the EM 2115 B 2 1 PRE IF Connector A13J10 Type BNC receptacle Function S...

Page 136: ...mVpk nominal into 91 B 2 6 X Y Plotter Connector A13J3 Type 11 pin connector SRE 11SJ TCH8 Function To connect an optional single or dual pen X Y recorder to the EM 2115 B 2 7 GPIB Connector A13J4 Typ...

Page 137: ...DESCRIPTION FRONT REAR PANEL CONNECTORS EM2115B 3 B 2 10 Battery Input Connector A14J3 Type 9 pin connector MS 3192A 20 16S Function To connect an optional external EM 2126 Battery Pack Charger Mod u...

Page 138: ...M 2115 A13J1 REAR PANEL ANTENNA CONNECTOR A13J1 PIN DESIGNATION FUNCTION A SU1 B GROUND C SU2 D RAW E SU3 F BD 1000 DETENT G 12 VDC FILTERED H BD 0100 DETENT J SU4 K BD 0010 L SU5 M BD 0001 N SU6 P SU...

Page 139: ...ear Panel Antenna Connector A13J1 A13J3 PLOTTER CONNECTOR A13J3 PIN DESIGNATION FUNCTION A SPARE B X OUT 0 1 5 V C SHIELD GND D PEN LIFT COIL N O E X COMM GND F Y COMM GND H Y2 OUT J SPARE K SPARE L S...

Page 140: ...attenuator Depending on the frequency of the input signal the RF Tuner produces one of three IF outputs 175 kHz 1 6 MHz 8 7 MHz A Preamplifier circuit pre amplifies and for three frequency ranges 0 0...

Page 141: ...5 f RF Input Attenuator A2A16A6 g Gear Train Assembly A2A16A3 C 4 1 A2A16A6 RF Input Attenuator The signal from the RF Input Connector is applied via the 1 GHz low pass input filter to the programmabl...

Page 142: ...y Range Bands 3 5 are double converted the first IF is 1 6 MHz with the final conversion to 175 kHz accomplished on the Pre amplifier Tuning Regulator Board The IF produced by the mixer stage is appli...

Page 143: ...rystal oscillator produces the LO signal for the high frequency mix er stage located on the Stator Board Assembly C 4 5 A2A16A2 Preamplifier Tuning Regulator Board Refer to Figure H 10 The Preamplifie...

Page 144: ...high voltage tuning circuit provides the 0 to 98 V tuning voltage required by the va ractors in the active tuning circuits on the RF Frequency Range Bands and the Stator Board As sembly A2A16A1 Using...

Page 145: ...e pass band shaping network and wideband filter consists of coupling transformers capacitors and resistors A wide band amplifier provides the first level of amplification for the circuit IF Circuitry...

Page 146: ...d to balance out the insertion loss maintaining an overall 0 dB loss through the module A separate output connector for each IF circuit applies the amplified and bandwidth de fined IF signal through a...

Page 147: ...ents the log of the true RMS Average or Quasi Peak linearly detected signal depending on the detector value selected In the Peak mode of the Peak Slideback Detector circuit a sample and hold circuit c...

Page 148: ...Refer to Figure H 16 The Discriminator Module produces the FM Video output for the receiver The module contains three separate discriminator subassemblies a A5A1 175 kHz IF b A5A2 1 6 MHz IF c A5A3 8...

Page 149: ...t from this circuit is applied to an output amplifi er buffer circuit whose output 0 to 8 V is applied to the Preamplifier Tuning Regulator Board A2A16A2 In addition the circuit produces a 0 to 1 5 V...

Page 150: ...rd A8 is applied through an amplifier buffer circuit to a multiplexer The multiplexer controlled by logic commands from the Microprocessor Board A1A3 switches between the AM signal and FM Video signal...

Page 151: ...n turn activate LED indicators The indi cators provide a visual indication of the switch function activated The sweep function and tuning controls Main Tuning Control Fine Tune Sweep Rate Sweep Width...

Page 152: ...he microprocessor C 16 A16 Interface Board Refer to Figure H 23 The Interface Board is the interface buffer between the Microprocessor Board A1A3 and the internal circuitry of the receiver A series of...

Page 153: ...r select module power transformer rectifier di odes and filter capacitors The power select module combines the power connector fuse holder and AC voltage selector into one unit The regulator circuit p...

Page 154: ...x xxxx 7 1 1 2 4 MHz 40 xxxx xxxx 8 2 4 5 5 MHz xxxx 21 xxxx 9 5 5 12 5 MHz xxxx 21 xxxx 10 12 5 30 MHz xxxx 20 xxxx 11 25 50 MHz xxxx xxxx 1 12 50 100 MHz xxxx xxxx 1 13 100 200 MHz xxxx xxxx 4 14 20...

Page 155: ...male TNC male Length 7 6 m 25 Number 1 E 1 0 Optional accessory Items The following section contains a listing and a short description of the optional accessory items available for use with the EM 211...

Page 156: ...ching networks and control cir cuitry Ten LED indicator lights numbered 1 thru 10 located on the front of the antenna base indicate which of the ten lower frequency RF Frequency Ranges is being used A...

Page 157: ...VC containing the nec essary impedance matching components Each series of antennas is calibrated during manufacturing with the calibration data at 1 3 and 10 meters included in the manual as gain and...

Page 158: ...ter is attached to the an tenna near its horizontal center of gravity Each antenna is calibrated at 1 meter with the calibration data included in the manual as gain and antenna factors vs frequency fo...

Page 159: ...The EM 6950 Log Periodic Antenna is a linearly polarized broadband antenna operating from 200 to 1000 MHz The primary design concern was one of size considerations This along with all alumi num const...

Page 160: ...M 6960 Double Ridged Guide Antenna E 2 5 1 EM 6960 Specifications a Electrical Frequency Range calibrated 200 MHz 2 GHz Calibration Chart furnished with each antenna Impedance 50 nominal Average VSWR...

Page 161: ...The conversion is accomplished by adding the an tenna factor in dB m to the receiver reading in dB above 1 microvolt Typical antenna radiation patterns horizontal and vertical polarization at 200 MHz...

Page 162: ...d strengths from 1 V m to 1 V m CW plus broadband field strengths up to 105 dB V m MHz The EM 6892 comprises an approximate 1 meter 41 inch standard or 2 meter 82 inch optional extensible rod that scr...

Page 163: ...lectro Metrics Model EM 2115 Interference Analyzer and is used to obtain electric field meas urements from 9 kHz to 30 MHz This frequency range covers the first ten RF Frequency Ranges for the EM 2115...

Page 164: ...lements used a c 2 Model EM 6925 65 180 MHz Elements used a 3 Model EM 6926 180 400 MHz Elements used b 4 Model EM 6927 400 1000 MHz Elements permanently fixed Antenna Factor calibration chart furnish...

Page 165: ...that contains a frequency versus dipole length column A balun transformer located within the dipole mounting transposes the balanced dipole to unbalanced coaxial line The high performance balun design...

Page 166: ...uency and conducted signal current The EM 6981 Current Probe is an instrument type transformer that utilizes the conductor under test as a single turn primary winding with the probe clamped around the...

Page 167: ...al information concerning probe calibration price and availability Impedance 50 nominal b Mechanical NOTE Physical Data is identical for all three probes Length 24 0 cm 9 5 Inside Circle Approx 5 0 cm...

Page 168: ...IL STD 461 462 but extend in frequency above 50 kHz up to 230 MHz The probes are designed to work into a 50 system and the calibration chart is based on this use The calibration chart gives values of...

Page 169: ...e can be used to block the low frequency voltage on a power line while allowing the high frequencies present on the line to be measured The probe presents a resistance of at least 1500 ohms to all vol...

Page 170: ...3 5 cm Ball E field Sensor Connector BNC female Model EM 6997 0 3 cm Stub E field Sensor Connector BNC female E 3 5 2 EM 6992 Description The EM 6992 Near Field Probe Set is intended to serve as a ver...

Page 171: ...2115 E 4 1 High Low Pass Filters The Electro Metrics Model EM 7450 1 EM 7450 2 High Pass and Model EM LPF 30M EM LPF 1000M Low Pass Filters enhance the performance of the EM 2115 Interference Analyze...

Page 172: ...d FCC Testing 100 kHz to 65 MHz two line single phase rated at 25 A Other LISNS are available on request Contact Electro Metrics for availability usage rating and phasing E 5 2 LISNS Applications The...

Page 173: ...y with a front panel push button switch for single pulse operation Either a positive or negative impulse polarity can be selected that facilitates checks for a possible overload of a device or unit un...

Page 174: ...rger Module enables the EM 2115 Interference Analyzer to be operated independently of an AC power source This allows the EM 2115 to be used on site in field or to eliminate possible ground loop proble...

Page 175: ...equency Range 10 kHz 1 GHz Gain 26 dB typical Gain level chart furnished with each unit Flatness 1 5 dB Noise Figure 7 dB Maximum above 100 kHz Power Output 1 dB compression 7 dBm typical Impedance 50...

Page 176: ...d E 8 3 EM 4206 Applications The Electro Metrics Model EM 4206 Broadband Preamplifier is a self contained module used to improve the sensitivity of EMI analyzers spectrum analyzers oscilloscopes and m...

Page 177: ...ee dynamic range SFDR of 47 dB Bandwidth 990 MHz Overall Noise Figure 6 0 dB Gain 43 dB This provides an impulse sensitivity of 31 dB V MHz for the 990 MHz bandwidth E 9 3 EM 4205 Applications The Ele...

Page 178: ...AA 136 Audio Amplifier and Speaker m EM MSA 30 Mast Section 51 cm 20 2 each n EM GPIB 6 Control Cable Computer 1 8 m 6 o EM GPIB 10 Control Cable Computer 3 m 10 p Carrying Cases 1 EM 1490 Carrying C...

Page 179: ...Source Impedance 50 1 dB Attenuation Range 0 12 dB Accuracy 0 25 dB Source Impedance 50 Hewlett Packard Model 355C 1 dB Model 355D 10 dB Impulse Generator Freq Range 0 1 MHz 1 0 GHz Average VSWR 1 7 1...

Page 180: ...stics equivalent equipment can be substituted 2 The test equipment shall have the accuracy stability range and resolution required for the intended use Unless otherwise specified the collective uncert...

Page 181: ...sembly A2A1 RF Frequency Range Band 1 A2A2 RF Frequency Range Band 2 A2A3 RF Frequency Range Band 3 A2A4 RF Frequency Range Band 4 A2A5 RF Frequency Range Band 5 A2A6 RF Frequency Range Band 6 A2A7 RF...

Page 182: ...s arranged left to right as follows Column 1 Reference designation Column 2 Description of the component Column 3 Manufacturer s part number Column 4 Name of manufacturer G 3 1 Resistor Part Number Co...

Page 183: ...E in ohms Indentified by four digit number First three digits represent significant figures Last digit specifies the number of zeros to follow When reisitance value is less than 100 ohms or when fac t...

Page 184: ...22100 ITW S4 Switch Nonlighted 3922500 ITW S5 Switch Nonlighted 3922500 ITW S6 Switch Lighted 3922100 ITW S7 Switch Nonlighted 3922500 ITW S8 Switch Nonlighted 3922500 ITW S9 Switch Lighted 3922100 IT...

Page 185: ...actory Adjust C11 Capacitor Factory Adjust C12 Capacitor Factory Adjust C13 Capacitor Factory Adjust C14 Capacitor Factory Adjust C15 Capacitor Factory Adjust C16 Capacitor Factory Adjust C17 Capacito...

Page 186: ...31K Allen Bradley R38 Res 330 ohm RC07GF331K Allen Bradley R39 Res 330 ohm RC07GF331K Allen Bradley R40 Res 330 ohm RC07GF331K Allen Bradley R41 Res 10 kilohm RCO7GF103K Allen Bradley R42 Res 10 kiloh...

Page 187: ...97BPC Fairchild U14 Integrated Circuit F40097BPC Fairchild U15 Integrated Circuit F40097BPC Fairchild U16 Integrated Circuiit MC6809 P Motorola U17 Integrated Circuit MC 1408L8 Motorola U20 Integrated...

Page 188: ...BATTERY BR1 3 0 V Battery BR 2325 IHB Panasonic CRYSTAL Y1 4 MHz Crystal VF00A Valpey Fisher TRANSISTORS Q1 Transistor 2N3646 Motorola Q2 Transistor 2N3646 Motorola Q3 Transistor 2N3646 Motorola Q4 T...

Page 189: ...39 Cap 2 2 F TD1035 225 25 Mepco Electra C40 Cap 2 2 F TD1035 225 25 Mepco Electra C41 Cap 0 1 F 8131100W5R0104M Murata Erie C42 Cap 100 pF CM05F101G03 Arco C43 Cap 22 F 35 V 196D226X9035PE4 Sprague C...

Page 190: ...s R19 Res 15 8 kilohm RN60D1582F Mepco Electra R21 Res Var 3262W 1 103 Bourns R22 Res 18 kilohm RC07GF184K Allen Bradley R23 Res Var 3262W 1 103 Bourns R24 Res 3 9 Megohm RC07GF395K Allen Bradley R25...

Page 191: ...IL ASSEMBLIES L1 Choke 330 H 9220 O4 J W Miller L2 Choke 1000 mH 9250 105 J W Miller L3 Choke 330 H 9220 O4 J W Miller L4 Choke 1000 mH 9250 105 J W Miller L5 Choke 330 H 9220 O4 J W Miller L7 Choke 3...

Page 192: ...rie C102 2 2 F 35 V TD 1035 225 25 Arco C103 Cap 0 01 F 100 V CK05BX103K Murata Erie C104 2 2 F 35 V TD 1035 225 25 Arco C106 Cap 0 01 F 100 V CK05BX103K Murata Erie C107 2 2 F 35 V TD 1035 225 25 Arc...

Page 193: ...A4826 EMD L0103 Coil Assy A4863 1 EMD T0104 Coil Assy A4828 1 EMD CAPACITORS C1 Cap Var 5 25 pF 557 000 C0P039 Murata Erie C2 Cap Var 5 25 pF 557 000 C0P039 Murata Erie C3 Cap 0 01 F 100 V CKO5BX103K...

Page 194: ...F 557 000 C0P039 Murata Erie C5 Cap 12 pF CM05F120G03 Mallory C6 Cap 3300 pF CM06F332G03 Mallory C7 Cap 82 pF CM05F820G03 Mallory C8 Cap Var 7 25 pF 538 002 93R Murata Erie RESISTORS R1 Res Var 3339P...

Page 195: ...ley A2A4 RF FREQUENCY BAND 4 3152 COIL ASSEMBLIES T0401 Coil Assy A4861 4 EMD T0402 Coil Assy A4862 3 EMD L0403 Coil Assy A4863 4 EMD T0404 Coil Assy A4830 1 EMD CAPACITORS C1 Cap Var 5 25 pF 557 000...

Page 196: ...3 Cap Var 5 25 pF 557 059 C0P039R Murata Erie C4 Cap 0 01 F 100 V CK05BX103K Murata Erie C5 Cap Var 5 25 pF 557 059 C0P039R Murata Erie C7 Cap Var 5 25 pF 557 059 C0P039R Murata Erie C8 Cap 22 pF CM05...

Page 197: ...2200 pF CM06F222G03 Mallory RESISTORS R1 Res 220 ohm RC07GF221K Allen Bradley R2 Res Var 3339P 1 104 Bourns A2A7 RF FREQUENCY BAND 7 3486 3 COIL ASSEMBLIES T0701 Coil Assy A4864 3 EMD T0702 Coil Assy...

Page 198: ...0 pF CM06F152G03 Mallory C4 Cap Var 1 5 7 pF 557 059 COPO10R Murata Erie C5 Cap 12 pF CM05F120G03 Mallory C6 Cap Var 5 25 pF 557 059 COPO39R Murata Erie C7 Cap 330 pF CM05F331G03 Mallory C8 Cap 1500 p...

Page 199: ...3 Mallory C8 Cap 2200 pF CMO6F222G03 Mallory C9 Cap 1500 pF CM06F152G03 Mallory RESISTORS R1 Res 220 ohm RC07GF221K Allen Bradley R2 Res Var 3339P 1 203 Bourns R4 Res 100 ohm RC07GF101K Allen Bradley...

Page 200: ...ractor 47 pF MC105B Crystalonics CR15 Varactor 47 pF MC105B Crystalonics CR16 Varactor 47 pF MC105B Crystalonics CAPACITORS C1 Cap Var 8 10 pF VAJ 16 J F D C2 Cap 0 01 F 100 V CK05BX103K Murata Erie C...

Page 201: ...ap 0 01 F 100 V CK05BX103K Murata Erie C36 Cap 10 pF 10TCCQ10 Sprague C37 Cap 27 pF CK05BX270K Murata Erie C38 Cap 47 pF CK05BX470K Murata Erie C39 Cap 0 01 F 100 V CK05BX103K Murata Erie C40 Cap 1 0...

Page 202: ...RC07GF332K Allen Bradley R27 Res 1 0 kilohm RC07GF102K Allen Bradley R28 Res 1 0 kilohm RC07GF102K Allen Bradley R29 Res Var 3262X 104 Bourns R30 Res 100 kilohm RC07GF104K Allen Bradley R31 Res 220 k...

Page 203: ...CR7A Varactor 235 pF VS821 Crystalonics CR7B Varactor 235 pF VS821 Crystalonics CR8A Varactor 235 pF VS821 Crystalonics CR8B Varactor 235 pF VS821 Crystalonics CR11A Varactor 235 pF VS821 Crystalonics...

Page 204: ...F 100 V CK05BX103K Murata Erie C4 Cap 2 2 F 15 V TSD1 15 225 Semcor C5 Cap 0 01 F 100 V CK05BX103K Murata Erie C6 Cap 2 2 F 15 V TSD1 15 225 Semcor C7 Cap 2 2 F 15 V TSD1 15 225 Semcor C8 Cap 0 01 F 1...

Page 205: ...p 0 01 F 100 V CK05BX103K Murata Erie C50 Cap 0 01 F 100 V CK05BX103K Murata Erie C51 Cap 330 pF CMO5F331G03 Mallory C52 Cap 47 pF CM05F470G03 Mallory C53 Cap 0 01 F 100 V CK05BX103K Murata Erie C54 C...

Page 206: ...GF224K Allen Bradley R14 Res 220 kilohm RC07GF224K Allen Bradley R15 Res 220 kilohm RC07GF224K Allen Bradley R16 Res 220 kilohm RC07GF224K Allen Bradley R17 Res 47 kilohm RC07GF473K Allen Bradley R18...

Page 207: ...Res Var 5 kilohm TYPE 100 1 IRC R53 Res 220 kilohm RC07GF224K Allen Bradley R54 Res 100 kilohm RC07GF104K Allen Bradley R55 Res 200 ohm RC07GF201K Allen Bradley R56 Res 220 kilohm RC07GF224K Allen Br...

Page 208: ...15 REPLACEMENT PARTS LIST A2A16A2 PREAMPLIFIER TUNING REGULATOR PC BOARD 8612 JACKS J1 Jack 50 051 0000 Sealectro J2 Jack 50 051 0000 Sealectro J3 Jack 50 051 0000 Sealectro INTEGRATED CIRCUITS U1 Int...

Page 209: ...sistor 2N4416 Central Semiconductor EM 2115 REPLACEMENT PARTS LIST A2A16A2 PREAMPLIFIER TUNING REGULATOR PC BOARD 8612 TRANSISTORS Q15 Transistor 2N2920 Central Semiconductor Q16 Transistor 2N3690 Cen...

Page 210: ...225 25 Arco C4 Cap 1200 pF CK05BX122K Murata Erie C5 Cap 1800 pF CK05BX182K Murata Erie C6 Cap 2 2 F TD1035 225 25 Arco C7 Cap 5600 pF CM06F562G03 Arco C8 Cap 2 2 F TD1035 225 25 Arco C9 Cap 2 2 F TD1...

Page 211: ...C39 Cap 2 2 F TD1035 225 25 Arco C40 Cap 2 2 F TD1035 225 25 Arco C41 Cap 2 2 F TD1035 225 25 Arco C42 Cap 2 2 F TD1035 225 25 Arco C43 Factory Adjust C44 Cap 150 F 196D157X9006PE4 Sprague C45 Cap 33...

Page 212: ...00 kilohm RC07GF104K Allen Bradley R14 Res 100 kilohm RC07GF104K Allen Bradley R15 Res 2 2 kilohm RC07GF222K Allen Bradley R16 Res 100 kilohm RC07GF104K Allen Bradley R17 Res 2 2 kilohm RC07GF222K All...

Page 213: ...TORS R48 Res 1 8 kilohm RC07GF182K Allen Bradley R49 Res 1 0 kilohm RC07GF102K Allen Bradley R50 Res 1 5 kilohm RC07GF152K Allen Bradley R51 Res 1 5 kilohm RC07GF152K Allen Bradley R52 Res 1 8 kilohm...

Page 214: ...PLIFIER TUNING REGULATOR PC BOARD 8612 RESISTORS R89 Res 680 ohm RC07GF681K Allen Bradley R90 Res 680 ohm RC07GF681K Allen Bradley R91 Res 52 3 kilohm RN55D5232F Mepco Electra R92 Res 10 kilohm RC07GF...

Page 215: ...TD 1035 225 25 Arco EM 2115 REPLACEMENT PARTS LIST A2A16A4 LO AMPLIFIER ASSEMBLY 8684 CAPACITORS C3 Cap 2 2 F 35 V TD 1035 225 25 Arco C4 Cap Feed Thru FA5C 102W Allen Bradley C5 Cap 0 001 F CHIP 10 5...

Page 216: ...STORS Q1 Transitor 2N4250 National Q2 Transitor 2N4250 National EM 2115 REPLACEMENT PARTS LIST A2A16A4 LO AMPLIFIER ASSEMBLY 8684 TRANSISTORS Q3 Transitor 2N5307 National Q4 Transitor 2N5308 National...

Page 217: ...F104K Allen Bradley R7 Res 220 ohm RC07GF221K Allen Bradley R8 Res 6 8 kilohm RC07GF682K Allen Bradley A2A16A6 RF ATTENUATOR ASSEMBLY 8671 Programmable Atten 50P 299 JFW Industries EM 2115 REPLACEMENT...

Page 218: ...l Assy A9189 3 EMD T4 Coil Assy A9189 3 EMD EM 2115 REPLACEMENT PARTS LIST A3A1 IF AMPLIFIER 175 kHz PC BOARD 9176 1 CAPACITORS C1 Cap 3300 pF CM06F332G03 Mallory C2 Cap 750 pF CM05F751G03 Mallory C3...

Page 219: ...rco C39 Cap 2 2 F TD1035 225 25 Arco C40 Cap 2 2 F TD1035 225 25 Arco C41 Cap 2 2 F TD1035 225 25 Arco C42 Cap 2 2 F TD1035 225 25 Arco C43 Cap 2 2 F TD1035 225 25 Arco EM 2115 REPLACEMENT PARTS LIST...

Page 220: ...ohm RC05GF471K Allen Bradley R26 Res 3 3 kilohm RC05GF332K Allen Bradley R27 Res 3 3 kilohm RC05GF332K Allen Bradley R28 Res 820 ohm RC05GF821K Allen Bradley R29 Res 100 ohm RC05GF101K Allen Bradley...

Page 221: ...ke 1 mH 9250 105 J W Miller L10 Choke 1 mH 9250 105 J W Miller L11 Choke 1 mH 9250 105 J W Miller L12 Choke 1 mH 9250 105 J W Miller L13 Choke 1 mH 9250 105 J W Miller EM 2115 REPLACEMENT PARTS LIST A...

Page 222: ...25 25 Mepco Electra C26 Cap 0 68 F 8131050651684M Murata Erie C27 Cap 0 68 F 8131050651684M Murata Erie C28 Cap 2 2 F TD1035 225 25 Mepco Electra C29 Cap 2 2 F TD1035 225 25 Mepco Electra C30 Cap 2 2...

Page 223: ...5GF471K Allen Bradley R12 Res 560 kilohm RC05GF564K Allen Bradley R13 Res 2 2 kilohm RC05GF222K Allen Bradley R14 Res 1 0 kilohm RC05GF102K Allen Bradley R15 Res 100 ohm RC05GF101K Allen Bradley R16 R...

Page 224: ...4 Transistor 2N3690 Motorola Q5 Transistor 2N3690 Motorola Q6 Transistor 2N3646 Motorola DIODES CR1 Diode FD 600 Motorola CR2 Diode FD 600 Motorola CR3 Diode FD 600 Motorola CR4 Diode FD 600 Motorola...

Page 225: ...C7 Cap 100 pF CM05F101G03 Mallory C8 Cap 0 56 pF TYPE TC ARCO C9 Cap 82 pF CM05F820G03 Mallory C10 Cap Var 6 22 pF 5STRIK004N 1500 Stettner Trush C11 Cap 0 01 F CK05BX 103 K Murata Erie C12 Cap 0 01...

Page 226: ...Cap 0 01 F CK05BX 103 K Murata Erie C47 Cap 0 01 F CK05BX 103 K Murata Erie C49 Cap 0 01 F CK05BX 103 K Murata Erie RESISTORS R1 Res 150 ohm RC05GF151K Allen Bradley R2 Res 1 5 kilohm RC05GF152K Alle...

Page 227: ...9 Res 100 ohm RC05GF101K Allen Bradley R30 Res 100 ohm RC05GF101K Allen Bradley R31 Res 100 ohm RC05GF101K Allen Bradley R32 Res 100 ohm RC05GF101K Allen Bradley R33 Res 100 ohm RC05GF101K Allen Bradl...

Page 228: ...e 100 H 21000M Stanwyck L13 Choke 100 H 21000M Stanwyck L14 Choke 100 H 21000M Stanwyck L15 Choke 100 H 21000M Stanwyck L16 Choke 100 H 21000M Stanwyck L17 Choke 100 H 21000M Stanwyck CAPACITORS C1 Ca...

Page 229: ...V TDS 115 225 Arco C34 Cap 2 2 F 15 V TDS 115 225 Arco C35 Cap 0 15 F 40 V C280AA P 150K Amperex C38 Cap 0 15 F 40 V C280AA P 150K Amperex C39 Cap 0 01 F 100 V 8121100651103M Murata Erie C40 Cap 2 2...

Page 230: ...a R25 Res 100 ohm RC07GF100K Allen Bradley R26 Res 200 300 ohm RN55D F Mepco Electra R27 Res 1 kilohm RC07GF101K Allen Bradley R28 Res 40 2 ohm RN60D4020F Mepco Electra R29 Res 181 ohm RN55D1810F Mepc...

Page 231: ...Transistor 2N3563 Motorola Q5 Transistor 2N3563 Motorola Q6 Transistor 2N3563 Motorola Q7 Transistor 2N3563 Motorola Q8 Transistor 2N3563 Motorola Q9 Transistor 2N3563 Motorola Q10 Transistor 2N3563...

Page 232: ...e C12 Cap 0 15 F 40 V C280AA P 150K Amperex C13 Cap 0 01 F 100 V 8121100651103M Murata Erie C14 Cap 2 2 F 15 V TDS 115 225 Arco C15 Cap 0 01 F 100 V 8121100651103M Murata Erie C16 Cap 0 01 F 100 V 812...

Page 233: ...C45 Cap 2 2 F 15 V TDS 115 225 Arco C46 Cap 0 15 F 40 V C280AA P 150K Amperex C48 Cap 2 2 F 15 V TDS 115 225 Arco C50 Cap 2 2 F 15 V TDS 115 225 Arco RESISTORS R2 Res 1 kilohm RC07GF101K Allen Bradle...

Page 234: ...R33 Res 1 kilohm RC07GF101K Allen Bradley R34 Res 40 2 ohm RN60D4020F Mepco Electra R35 Res 181 ohm RN55D1810F Mepco Electra R36 Res 750 ohm RN60D7500F Mepco Electra R37 Res 100 ohm RC07GF100K Allen...

Page 235: ...Transistor 2N3563 Motorola Q12 Transistor 2N3563 Motorola Q13 Transistor 2N3563 Motorola Q14 Transistor 2N3563 Motorola Q15 Transistor 2N3563 Motorola Q16 Transistor 2N4250 Motorola Q17 Transistor 2N...

Page 236: ...o C8 Cap 2 2 F 15 V TDS 115 225 Arco C9 Cap 470 pF CM05F471G03 Arco C10 Cap 2 2 F 15 V TDS 115 225 Arco C11 Cap 470 pF CM05F471G03 Arco C12 Cap 1000 pF CM05F102G03 Arco C13 Cap 1000 pF CM05F102G03 Arc...

Page 237: ...C45 Cap 2 2 F 15 V TDS 115 225 Arco C46 Cap 470 pF CM05F471G03 Arco C48 Cap 2 2 F 15 V TDS 115 225 Arco C50 Cap 2 2 F 15 V TDS 115 225 Arco C51 Cap 120 pF CM05F120G03 Arco RESISTORS R1 Res 100 ohm RC0...

Page 238: ...0D7500F Mepco Electra R31 Res 100 ohm RC07GF100K Allen Bradley R32 Res 200 300 ohm RN55D F Mepco Electra R33 Res 1 5 kilohm RC07GF152K Allen Bradley R34 Res 40 2 ohm RN60D4020F Mepco Electra R35 Res 1...

Page 239: ...Crystal 175 kHz International Crystal TRANSISTORS Q1 Transistor 2N3690 Central Semiconductor Q2 Transistor 2N3690 Central Semiconductor Q3 Transistor 2N2484 Motorola Q4 Transistor 2N2484 Motorola Q5...

Page 240: ...200 pF 10TCU T20 Sprague C10 Cap 200 pF 10TCU T20 Sprague C11 Cap 1000 pF CM05F102G03 Arco C12 Cap 1600 pF CM06F162G03 Arco C13 Cap 220 pF CM05F221G03 Arco C14 Cap 220 pF CM05F221G03 Arco C15 Cap 2 2...

Page 241: ...z PC BOARD 8656 2 CRYSTALS Y1 Crystal 1 6 MHz International Crystal TRANSISTORS Q1 Transistor 2N3690 Central Semiconductor Q2 Transistor 2N3690 Central Semiconductor Q3 Transistor 2N2484 Motorola Q4 T...

Page 242: ...pF CM05F331G03 Arco C8 Cap 180 pF CM05F181G03 Arco C9 Cap 180 pF CM05F181G03 Arco C10 Cap 33 pF CM05F330G03 Arco C11 Cap 33 pF CM05F330G03 Arco C12 Cap 2 2 F TD1035 225 25 Mepco Electra C13 Cap 2 2 F...

Page 243: ...1 Transistor 2N3690 Central Semiconductor Q2 Transistor 2N3690 Central Semiconductor Q3 Transistor 2N2484 Motorola Q4 Transistor 2N2484 Motorola Q5 Transistor 2N4250 IDI Q6 FET 2N4416 Motorola DIODES...

Page 244: ...C10 Cap 20 pF CM05F200G03 Arco C11 Cap 20 pF CM05F200G03 Arco C12 Cap 0 01 F CK05BX103K Murata Erie C13 Cap 0 01 F CK05BX103K Murata Erie C14 Cap 0 01 F CK05BX103K Murata Erie C15 Cap 33 pF CM05F330G0...

Page 245: ...900 146 24 Murata Erie TRANSISTORS Q1 Transistor 2N2483 Motorola Q2 Transistor 2N4250 Inter Devices Inc Q3 Transistor 2N3690 Central Semiconductor Q4 Transistor 2N2484 Motorola Q5 Transistor 2N4250 I...

Page 246: ...V TD1035 225 25 Arco C18 Cap 2 2 F 35 V TD1035 225 25 Arco C19 Cap 0 01 F CK05BX 103 K Murata Erie C20 Cap 2 2 F 35 V TD1035 225 25 Arco C22 Cap 0 1 F 200 V MMW 2P1K Cornell Dublier C23 Cap 0 1 F 200...

Page 247: ...ilohm RC07GF102K Allen Bradley R26 Res Var 1 0 kilohm TYPE 100 1 102 Allen Bradley R27 Res 6 8 kilohm RC07GF682K Allen Bradley R28 Res 6 6K RC07GF682K Allen Bradley R29 Res 1 5 kilohm RC07GF152K Allen...

Page 248: ...Bradley R57 Res 12 kilohm RC07GF123K Allen Bradley R58 Res 1 kilohm RC07GF102K Allen Bradley R59 Res Var 2 kilohm TYPE 100 1 202 IRC R60 Res 6 8 kilohm RC07GF682K Allen Bradley R61 Res 470 ohm RC07GF4...

Page 249: ...l CR2 Diode FD 300 National CR3 Diode FD 300 National CR4 Diode FD 300 National CR5 Diode FD 300 National CR6 Diode FD 300 National CR9 Diode 1N3064 National CR10 Diode 1N3064 National CR11 Diode 1N75...

Page 250: ...F 8131100W5R014K Murata Erie C23 Cap 0 1 F 8131100W5R014K Murata Erie C25 Cap 0 1 F 8131100W5R014K Murata Erie C26 Cap 1 0 F T1M105K050P0 W Mallory C27 Cap 2 2 F TD1035 225 25 General Inst C28 Cap 2 2...

Page 251: ...F Mepco Electra R22 Factory Adjust R23 Factory Adjust R25 Res 931 ohm RN60D9310F Mepco Electra R26 Res 4 31 kilohm RN55D4321F Mepco Electra R27 Res 17 4 kilohm RN55D1742F Mepco Electra R28 Res 1 0 Meg...

Page 252: ...hm RC07GF102K Allen Bradley R56 Res 15 8 kilohm RN55D1582F Mepco Electra R57 Res 4 7 kilohm RC07GF472K Allen Bradley A9 AUDIO AMPLIFIER PC BOARD 8869 CONNECTORS J1 Conn PC BD Mnt 50 053 0000 Sealectro...

Page 253: ...PE4 Sprague C12 Cap 2 2 F 35 V TD1035 225 25 Arco C13 Cap 68 F 100 V 196D686X9015PE4 Sprague C14 Cap 68 F 100 V 196D686X9015PE4 Sprague C15 Cap 0 68 F 15 V 8131050651684M Murata Erie C16 Cap 0 68 F 15...

Page 254: ...Mepco Electra R10 Res 2 55 kilohm RN55D2551F Mepco Electra R11 Res 100 ohm RC07GF101K Allen Bradley R12 Res 100 ohm RC07GF101K Allen Bradley R13 Res 4 7 kilohm RC07GF472K Allen Bradley R14 Res 1 0 kil...

Page 255: ...Allen Bradley R44 Res 10 kilohm RC07GF103K Allen Bradley R45 Res 1 0 kilohm RC07GF102K Allen Bradley R46 Res 100 ohm RC07GF101K Allen Bradley R47 Res 1 0 kilohm RC07GF102K Allen Bradley R48 Res 100 o...

Page 256: ...nsistor 2N2484 National DIODES CR1 Diode 1N3064 National CR2 Diode 1N3064 National CR3 Diode 1N3064 National CR4 Diode 1N3064 National CR8 Diode 1N3064 National CR9 Diode 1N3064 National CR10 Diode 1N...

Page 257: ...196D686X9015PE4 Sprague C27 Cap 68 F 15 V 196D686X9015PE4 Sprague RESISTORS R1 Res 499 kilohm RN60D4993F Mepco Electra R2 Res 499 kilohm RN60D4993F Mepco Electra R3 Res 10 Megohm RC07GF106K Allen Brad...

Page 258: ...ohm RC07GF103K Allen Bradley R38 Res 10 kilohm RC07GF103K Allen Bradley R39 Res 4 99 kilohm RN55D4991F Mepco Electra R40 Res 82 kilohm RC07GF823K Allen Bradley R41 Res 100 ohm RC07GF101K Allen Bradley...

Page 259: ...OARD 6325 1 RESISTORS R72 Res 2 2 Megohm RC07GF225K Allen Bradley R73 Res 6 8 kilohm RC07GF682K Allen Bradley R74 Res Var 3262X 1 103K Bourns R75 Res 100 ohm RC07GF101K Allen Bradley R76 Res 3 9 Megoh...

Page 260: ...9169 INTEGRATED CIRCUITS U6 Integrated Circuit LM 1458N National U7 Integrated Circuit LM 1458N National U8 Integrated Circuit LM 1458N National U9 Integrated Circuit LM 1458N National U10 Integrated...

Page 261: ...1N3064 National CAPACITORS C1 Cap 0 47 F 100 V 8131100651474 M Murata Erie C2 Cap 0 1 F 35 V 232A1Z105K Electrocube C3 Cap 2 0 F 35 V 232A1Z205K Electrocube C4 Cap 2 2 F 35 V TD1035 225 25 Sprague C5...

Page 262: ...dley R9 Res 22 kilohm RC07GF223K Allen Bradley R10 Res 1 0 kilohm RC07GF102K Allen Bradley R11 Res 1 0 kilohm RC07GF102K Allen Bradley R12 Res 10 kilohm RC07GF103K Allen Bradley R13 Res 10 kilohm RC07...

Page 263: ...adley EM 2115 REPLACEMENT PARTS LIST A11 SWEEP PC BOARD 9169 RESISTORS R51 Res 39 kilohm RC07GF393K Allen Bradley R52 Res 10 kilohm RC07GF103K Allen Bradley R53 Res 10 kilohm RC07GF103K Allen Bradley...

Page 264: ...len Bradley R88 Res 100 ohm RC07GF101K Allen Bradley EM 2115 REPLACEMENT PARTS LIST A11 SWEEP PC BOARD 9169 RESISTORS R89 Res 100 ohm RC07GF101K Allen Bradley R90 Res 100 ohm RC07GF101K Allen Bradley...

Page 265: ...egrated Circuits A723PC National U2 Integrated Circuits GPD 461 Avantek EM 2115 REPLACEMENT PARTS LIST A12A1 PRESCALER PC BOARD 8617 TRANSISTORS Q1 60 V MOSPOWER FET VN10KM Siliconix Q2 60 V MOSPOWER...

Page 266: ...ilohm RC05GF123K Allen Bradley R5 Res 4 7 kilohm RC05GF472J Allen Bradley EM 2115 REPLACEMENT PARTS LIST A12A1 PRESCALER PC BOARD 8617 RESISTORS R6 Res 4 7 kilohm RC05GF472J Allen Bradley R7 Res 330 o...

Page 267: ...6J4 VS F CORCOM EM 2115 REPLACEMENT PARTS LIST A14 POWER SUPPLY ASSEMBLY 8601 CAPACITORS C1 Cap 9000 F 40 V G5902U040R4C Mallory C2 Cap 9000 F 40 V CG5902U040R4C Mallory C3 Cap 0 1 F 8131100W5R0104K M...

Page 268: ...n CR14 Diode 2A400 Solitron EM 2115 REPLACEMENT PARTS LIST A14A1 POWER SUPPLY PC BOARD 8623 RESISTORS R1 Res 2 2 ohm RC32GF2R2K Allen Bradley R2 Res 2 2 ohm RC32GF2R2K Allen Bradley R3 Res 3 9 kilohm...

Page 269: ...GF472K Allen Bradley EM 2115 REPLACEMENT PARTS LIST A15 POWER SUPPLY FILTER ASSEMBLY 8639 CAPACITORS C1 Cap 1000 pF 2402 X5U 102P Tusonix C2 Cap 1000 pF 2402 X5U 102P Tusonix C3 Cap 1000 pF 2402 X5U 1...

Page 270: ...pF 2402 X5U 102P Tusonix C27 Cap 1000 pF 2402 X5U 102P Tusonix C28 Cap 1000 pF 2402 X5U 102P Tusonix C29 Cap 1000 pF 2402 X5U 102P Tusonix A15A1 POWER SUPPLY FILTER INTERCONECTION PC BOARD 8632 INTEGR...

Page 271: ...Allen Bradley R5 Res 22 kilohm RC07GF223K Allen Bradley R6 Res 22 kilohm RC07GF223K Allen Bradley R7 Res 22 kilohm RC07GF223K Allen Bradley EM 2115 REPLACEMENT PARTS LIST A15A1 POWER SUPPLY FILTER INT...

Page 272: ...ke 100 H DD100 100 H Nytronics L4 Choke 100 H DD100 100 H Nytronics L5 Choke 100 H DD100 100 H Nytronics L6 Choke 50 H LL50 TRW L7 Choke 300 H LL 300 TRW L8 Choke 300 H LL 300 TRW L9 Choke 300 H LL 30...

Page 273: ...c Q11 Transistor TIP 120 Panasonic Q12 Transistor TIP 120 Panasonic Q13 Transistor TIP 120 Panasonic DIODES CR1 Diode 1N3064 National CR2 Diode 1N3064 National CR3 Diode 1N3064 National CR4 Diode 1N30...

Page 274: ...ry C5 Cap 0 0001 F CK05BX 102 K Mallory C6 Cap 0 33 F 8141050WSR3345 Tusonix C7 Cap 0 01 F 8131100WSR0104K Tusonix RESISTORS R1 Res Var 3262 X 103 Bourns R2 Res Var 3262 X 103 Bourns R3 Res Var 3262 X...

Page 275: ...radley R31 Res 22 kilohm RC07GF223K Allen Bradley R32 Res 22 kilohm RC07GF223K Allen Bradley R33 Res 22 kilohm RC07GF223K Allen Bradley R34 Res 22 kilohm RC07GF223K Allen Bradley R35 Res 22 kilohm RC0...

Page 276: ...hm RC07GF103K Allen Bradley R67 Res 10 kilohm RC07GF103K Allen Bradley R68 Res 10 kilohm RC07GF103K Allen Bradley R69 Res 47 kilohm RC07GF473K Allen Bradley R70 Res 47 kilohm RC07GF473K Allen Bradley...

Page 277: ...103K Allen Bradley R87 Res 22 kilohm RC07GF223K Allen Bradley R88 Res 22 kilohm RC07GF223K Allen Bradley R89 Res 10 kilohm RC07GF103K Allen Bradley R90 Res 10 kilohm RC07GF103K Allen Bradley R91 Res 1...

Page 278: ...er A2A16A4 B 8725 H 12 Interconnection Diagram RF Tuner A2 D 8723 H 13 IF Amplifier A3 D 9195 H 14 Narrowband Filter Module A6 0 1 NB Crystal Filter R 4325 1 H 15 Log Amplifier Detector A4 R 3779 1 S...

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