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Figure 5-8. Code Synthesizer Block Diagram

5-63. The three modulation sources are sumed together on the Audio Synthesizer module after the level
controls. The composite modulation signal is then switched to the appropriate modulator and applied to the

modulation determination circuitry (MOD CAL AUDIO), the audio amplifier (SPKR AUDIO), and the

Modulation Output jack (MOD OUT) on the front panel. The signal to the front panel jack is buffered by a Driver
Amplifier to provide a low driving source impedance.

5-64. The AM modulation signal at the output of the Select Switch is sumed with a +5 volt signal. This
combination provides a DC level to control the average output power of the wideband amp in the RF Input
module, and a superimposed modulation signal to give an AM output. The RF Level control on the front panel
for local control or the Programmable Attenuator on the IEEE module provide local or remote RF level control

by simultaneously attenuating the DC level and the modulating signal. The resulting signal is the AM MOD &
DC REFERENCE signal to the RF Input module.

5-16

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Summary of Contents for R-2001A

Page 1: ... MOTOROLA test equipment oo ro oo w ro ro w oo R 2001AIR 2002A 68P81 069A84 0 Table of contents ...

Page 2: ...MOTOROLA INC Communications Group R 2001A R 2002A COMMUNICATIONS SYSTEM ANALYZER Motorola Inc 1980 All Rights Reserved Printed in U S A 1313 E Algonquin Road Schaumburg II 60196 68P81069A84 0 5 30 80 SK ...

Page 3: ...ff The Air Monitor 2 2 2 14 IF Display 2 2 2 15 Spectrum Analyzer 2 3 2 16 RF Burnout Protection 2 3 2 17 Terminated RF Power Measurement 2 3 2 18 In Line Power Measurement 2 3 2 19 Duplex Generator 2 3 2 20 500 kHz Oscilloscope 2 3 2 21 Frequency Counter 2 4 2 22 AC DC V o l t m e t e r 2 4 2 23 Power Supply 2 4 2 24 Accessories 2 4 SECTION 3 INSTALLATION 3 1 Packing Information 3 1 3 4 Initial S...

Page 4: ...ajor Assemblies 5 4 5 16 Theory of Operation 5 5 5 17 General 5 5 5 20 System Control 5 5 5 25 Generate Mode 5 5 5 34 Power Meter 5 11 5 40 Monitor Mode 5 12 5 52 Duplex Generator 5 14 5 56 Code Synthesizer 5 15 5 65 Frequency Counter 5 17 5 71 Digital Voltmeter DVM 5 17 5 84 Oscilloscope 5 19 5 96 Sinad Meter 5 21 5 99 Alignment Procedure 5 22 5 100 Introduction 5 22 5 102 Test Equipment Required...

Page 5: ...ODULE A3 9 1 General 9 1 9 4 Scope Vertical Control 9 1 9 7 SSB Detection 9 1 9 8 455 kHz PLL 9 2 9 9 Scope Horizontal Control 9 2 9 11 Synthesizer Sweep Control 9 2 9 12 Scope Z Axis Control 9 2 9 13 Modulation Display Control 9 2 9 17 Peak Detector 9 3 9 18 DVM Control 9 3 9 21 SINAD Detection 9 4 9 22 Module Control 9 4 SECTION 10 RECEIVER A4 10 1 General 10 1 10 2 Down Converter 10 1 10 4 Line...

Page 6: ...nal Modulation 12 2 12 12 Modulation Control 12 2 12 14 Module Control 12 2 SECTION 13 PROCESSOR I O MODULE A7 13 1 General 13 1 13 2 10 245 MHz Phase Locked Loop 13 1 13 3 System Control Bus Interface 13 1 13 6 DVM 13 1 13 8 Frequency Counter 13 1 SECTION 14 IEEE INTERFACE MODULE A8 14 1 General 14 1 14 2 IEEE Bus Interface 14 1 14 3 RF Level Control 14 1 14 5 Modulation Control 14 1 14 6 Address...

Page 7: ...18 1 SECTION 19 10 MHz FREQUENCY STANDARD MODULE A13 19 1 General 19 1 SECTION 20 FRONT PANEL A14 SECTION 21 BLOWER ASSEMBLY SECTION 22 IEEE 488 BUS CONTROL 22 1 Introduction 22 1 22 7 IEEE 488 Bus Structure 22 3 22 9 Bus Signals 22 3 22 10 Data Transfer 22 3 22 12 Programming 22 3 22 15 Command Structure 22 4 22 24 Command Strings 22 10 22 25 Command Types 22 10 22 29 Trigger Command 22 10 22 30 ...

Page 8: ...st Setup for Using DVM and Signal Generate with CRT Display 4 20 5 1 Communication System Analyzer Top View Cover Removed 5 3 5 2 Communication System Analyzer Bottom View Cover Removed 5 3 5 4 Generate Mode Block Diagram 5 10 5 5 Power Meter Block Diagram 5 12 5 6 Monitor Mode Block Diagram 5 13 5 7 Duplex Generator Block Diagram 5 15 5 8 Code Synthesizer Block Diagram 5 16 5 9 Frequency Counter ...

Page 9: ...5 4 5 2 Control Buses and Functions 5 9 5 3 Basic Test Equipment Required 5 22 5 4 Extended Test Equipment Required 5 23 5 5 Test Equipment 5 32 5 6 System Troubleshooting 5 37 5 7 Test Point Identification 5 42 9 1 Internal DVM Inputs 9 3 22 1 IEEE 488 Interface Controllable Functions 22 2 22 2 Command Categories 22 4 22 3 Programming Commands 22 5 22 4 Terminal Mode ASC II Characters Printable C...

Page 10: ...ency and accuracy and reduces servicing time The Communications System Analyzer performs the functions of signal generation signal monitoring and the tests normally associated with the devices listed below Spectrum Analyzer Duplex Generator Modulation Oscilloscope Frequency Counter AC DC Digital Voltmeter RF Wattmeter General Purpose Oscilloscope Multi Mode Code Synthesizer SINAD Meter Sweep Gener...

Page 11: ...Figure 1 1 Communications System Analyzer 1 0 8521 15 aaaa 2 UDIUI I IDDEI so 11S2 ...

Page 12: ...uency Range Resolution Accuracy Output into 50 ohms Attenuator Range Accuracy 10 kHz to 999 9999 MHz 100 Hz Equal to master oscillator time base 16 dB variable plus 10 dB steps over 13 ranges 0 1 u V to 1 Vrms 127 dBm to 13 dBm 2 dB accuracy on 0 dB step attenuator range 2 dB across other step attenuator ranges 1 dB over temperature range Spectral purity Spurious Harmonics Frequency modulation Ran...

Page 13: ...lator time base Autoranging CRT display 10 Hz resolution for frequency error measurements on 1 5 kHz 5 kHz and 15 kHz full scale ranges 1 Hz resolution on the 50 Hz full scale range 1 5 ft V for 10 dB EIA Sinad narrow band 6 kHz mod acceptance 7 fjtV for 10 dB EIA Sinad wide band 100 kHz mod acceptance 4 MHz to 1000 MHz Useable to 1 MHz 40 dB typical 0 dB image at 21 4 MHz 10 dB at L O harmonics 1...

Page 14: ...or 4 MHz to 1 000MHz Adjustable between 1 MHz and 10 MHz 1 3 Duplex Generator Frequency offset Modulation level FM only Adjustable from 0 to 10 MHz plus fixed offset of 45 MHz high or low side Adjustable from 0 to 20 kHz peak deviation Size Frequency response External vertical input range Sweep rates Sync 8 cm x 10 cm DC to 0 5 MHz 3 dB point 10 mV 100 mV 1V 10V per division 1 1 s 10 H s 0 1 ms 1 ...

Page 15: ...istortion External input Microphone External Jack Frequency range Level Impedance Code synthesizer external output level SINAD Meter Input level range Sinad accuracy 5 Hz to 9 9999 kHz sinewave 0 1 Hz 0 01 1 Four fixed 1 Tone only 2 Tone with battery saver 3 Tone and voice 4 Group call Four user programmable Remote base access sequence as follows Tone A for 150 msec Tone B for 40 msec 10 dB below ...

Page 16: ... Temp 5 x 10 8 maximum error over the 0 to 55 C temp range warmup to 5 x 10 7 of final frequency within 20 minutes 100 130 VAC 200 260 VAC 47 63 Hz 11 5 VDC to 16 VDC 13 6V battery provides 1 hour continuous operation 0 to 55 C operating 40 to 85 C storage Description 10K ohms nominal 150 mV typical for 20 kHz dev FM or 80 AM Mic input provides bias and IDC limiting suitable for Motorola RTM 9000A...

Page 17: ...tem to the power monitor mode before applying power in excess of 200 mW Additional protection is also obtained by making it a practice not to leave the step attenuator in the 0 dB position Characteristics suitable for Motorola ST 1200 series Wattmeter Elements 70 to 350 mV rms input required at 10 MHz impedance greater than 50 ohms Output Mod out Demod out RF in out Duplex gen out 10 MHz std out r...

Page 18: ...in both analog and digital format with the name of the function being displayed The CRT also displays control settings eliminating the need for operator search of different equipment panels Digital readouts are visually aided by the use of the continuously autoranging analog line segments which are similar to a bar graph Each has a base line and calibration markers in addition to the intensified s...

Page 19: ...ifiers and filters 2 11 SINAD Metering A comprehensive check of receiver performance can be made with a SINAD measurement The analog line segment and digital representation of SINAD appear automatically whenever the unit is in the normal generate mode The only hookups required are from the Communications System Analyzer to the RF input of the receiver under test and from the audio output of the re...

Page 20: ...Additional protection is also obtained by making it a practice not to leave the step attenuator in the 0 dB position 2 17 Terminated RF Power Measurement RF power is automatically measured when the Communications System Analyzer is in the Power Monitor mode The built in RF load dissipates up to 50 watts for three minutes and up to 125 watts for one minute If a high power transmitter should be keye...

Page 21: ...lue The auto ranging display provides full scale deflections of 1 10 100 and 300 Volts AC or DC measurement is selected on the CRT The meter s wide dynamic range and three digit display are ideal for setting power supply voltages checking bias levels and setting audio levels Like the Frequency Counter the DVM will operate simultaneously with generate or monitor operation 2 23 Power Supply The Comm...

Page 22: ...nd display of forward and reflected transmitted power Adapts front panel N connector to BNC female Plugs into RF in out connector on front panel with N to BNC adapter Used for off the air transmitter and receiver tests Used for voice modulation of signals Consists of connector shell clamp and four connector pins Used to fabricate a mating plug for male dc power connector at back of analyzer Enable...

Page 23: ...e cover RTP 1002A RTL 1007A RTL 4056A 13 6 volt battery and charger attaches to back of the unit Provides one hour of continuous operation Cannot be used with IEEE 488 or Blower options Improves stability of the time base as specified in electrical characteristics section Padded fabric type cover to protect unit from excessive field wear 2 6 ...

Page 24: ...es supplied with the analyzer are packed in the analyzer cover 3 4 INITIAL SETUP 3 5 ANALYZER To set up the Analyzer for use place the unit on workbench or in mobile repair unit Remove the front cover by operating the two latches on the bottom ofthe cover Lift the coverand slide itto the side to separate the hinges Remove the power cord AC or DC that is stored in the cover Attach the female connec...

Page 25: ...ected against overload by the DC 8A fuse on the rear of the unit but the vehicle is not protected 3 6 BATTERY PACK The battery pack is attached tothe rearofthe analyzerwith two clips and two screws Align and slide the mounting clips of the battery pack intothe slots on the mounting brackets on the leftside of the back panel of the analyzer Align the captive screws with the mounting holes on the ri...

Page 26: ...ters variables into memory enters manual variables selects variables to be used from the memory Moves the cursor down to the next line that may be changed Preset permanent entries are skipped Cursor will move down only When on last line will return to top line with next entry Moves the horizontal cursor left to the next entry position that may be changed When in the last left position the cursor w...

Page 27: ... Ott Sat1 AC Oven Ready Geni Mor Mtr Mo lv at on SpectAnaryler Duple Gcn RFMemory To eMemory FreqCounter DVM E tWattmetcr IF ScopeAC ScopeDC FM CW AM SSBtOSB SC SWPH0Mtt7 SWP 01 1 MHz II II Figure 4 1 Controls Indicators and Connectors Front Panel G J kJSynlhMnde PUOPI Pl DPtlrw lnMA lonf B AlB TOtloHtl TMlhl 4 2 ...

Page 28: ...Figure 4 2 Controls Indicators and Connectors Left Side Panel Figure 4 3 Controls Indicators and Connectors Rear Panel 4 3 ...

Page 29: ...ng DC power Illuminates when equipment is connected to an ac power source Position of POWER switch has no effect on indicator Equipment automatically switches to ac power source when connected to ac line voltage Illuminates when optional frequency standard oven has stabilized Continuously illuminated with the TCXO frequency standard Illuminate one at a time to indicate the function or type of oper...

Page 30: ...ailable g Freq Counter The frequency of the signal input to the front panel frequency counter jack is displayed h DVM The AC or DC level of the signal at the front panel DVM jack is displayed The AC or DC mode is selected with the display cursor and the keyboard The battery voltage is also displayed i Ext Wattmeter The external wattmeter element selected and the forward and re flected power being ...

Page 31: ...n unmodulated RF signal Monitor CW provides frequency error measurement only c AM equipment generates or monitors amplitude modulated signals d SSB DSBSC equipment generates a double sideband suppressed carrier signal NOTE The level of the DSBSC signal generated is not calibrated it is for use in relative measurements only Monitor SSB mode receives SSB signals with the use of the BFO e SWP 1 10 MH...

Page 32: ...mote access sequence to be output The access sequence leaves tone A at a low level for transmit type commands until the switch is returned to the Off position This switch is spring loaded to return to the Off position from the Burst position When illuminated indicates the selected mode of the Code Synthesizer a PL DPL Indicator PL Selected Private Line frequency output to 1 kHz DPL Selected Digita...

Page 33: ...layed by the equipment as indicated by the DISPLAY LEDs a moves the selection up one step at a time b V moves the selection down one step at a time Selects the type or mode of signal the equip ment will generate or monitor as indicated by the FUNCTION LEDs Operation is the same as for the DISPLAY select switches Selects the Code Synthesizer output mode as indicated by the CODE SYNTH MODE LEDs Oper...

Page 34: ...d beat frequency control for sideband reception Full Counterclockwise position is off NOTE To minimize interference the BFO should be turned off when not in use Flashes at a rate equal to the difference between the received carrier frequency and the programmed frequency Also is used as a squelch indicator Adjusts squelch threshold level full counter clockwise position disables squelch NOTE Monitor...

Page 35: ...mode In Auto position continuous sweep with no vertical input signal syncs on vertical input Normal position no sweep unless vertical input is present syncs on vertical input Controls the position of the CRT display when in the oscilloscope mode Controls the vertical position of the CRT display Controls the horizontal position of the CRT display Oscilloscope operation uses values marked to the rig...

Page 36: ...t in a distorted output Ten dB per step control of RF output level in generate mode Also serves as RF input level step attenuator in monitor and spectrum analyzer modes Allows input from Motorola ST 1200 series in line wattmeter elements for measurement and CRT display of forward and reflected trans mitted power Controls the duplex generator output frequency in the Duplex Generation mode Coarse fr...

Page 37: ...the functions the Communication System Analyzer is capable of performing The unit may be preset to any of the functions the unit performs As a function and its parameters are selected they are displayed on the CRT The unit contains a nonvolatile memory that stores frequently used data for fast access reducing setup time As a function is selected if data for that function is stored the data is disp...

Page 38: ...R POS AM 8521 22 ANALOG INDICATOR OF AM Figure 4 4 System Analyzer Time Base Calibrate Test Setup and CRT Display 4 8 GENERATOR OPERATION The system generates RF frequencies for FM AM CW SSB and DSBSC types of transmission covering a range of 10 kHz to 1000 MHz To generate a signal the FUNCTION switch is placed in the Gen position NOTE An RF protection circuit to protect against damage due to inad...

Page 39: ...sample to RF In Out connector The Duplex Gen Output level is fixed at 30 dBm nominal b Set FUNCTION switch to Gen and DISPLAY to Duplex Gen c Select Duplex Monitor frequency repeater transmit frequency from memory table or enter directly from keyboard d Set DUPLEX GENERATOR frequency to repeater receiver frequency e Adjust PL and test tone deviation to desired level on display f Set FUNCTION switc...

Page 40: ...right of the CRT The following is an example of locating the frequency of an incoming signal with the spectrum analyzer a Connect antenna to RF IN OUT connector b Set FUNCTION switch to Mon and DISPLAY to Sped Analyzer c Select center frequency from memory table or enter directly from keyboard d Adjust Disp Sweep control for desired spectrum span e Adjust Step attenuator f required to reduce sensi...

Page 41: ... signal samples or off the air monitoring For high power signal monitoring 0 2w to 125w set the FUNCTION switch to Pwr Mon CAUTION To prevent undue stress on the protected circuits it is advisable to always switch the system to the power monitor mode before applying power in excess of 200 mw Additional protection is also obtained by making it a practice not to leave the step attenuator in the 0 dB...

Page 42: ...embly into transmission line NOTE Arrow on In Line Wattmeter Adaptor must point in the forward direction of the desired rf power flow through the adaptor e Key transmitter and observe magnitudes of forward and reflected power as displayed simultaneously on the 2 analog meter bars and corresponding digital readouts POWER ANii nr RFTO ANTENNA TRANSMITTER R 2001A EXT WATT METER INDICATION OF REFLECTE...

Page 43: ...PUT LEVEL DIGITAL SINAD READING POS DEVIATION ANALOG DEVIATION INDICATOR 8521 23 Figure 4 8 Test Setup for FM Receiver Sensitivity Using Generator and SINAD Meter with CRT Display b Test pager decode and alert function and demonstrate simultaneous modulation 1 Set FUNCTION switch to Gen and DISPLAY to Tone Mem 2 Select pager frequency from RF memory table or enter directly from keyboard 3 Enter pa...

Page 44: ...nerate function simultaneously 1 Select the DVM function by means of the arrow keys located below the DISPLAY column 2 Using the keyboard down arrow position the CRT cursor adjacent to the DVM Mode graphics 3 Enter a 1 via the keyboard to select AC voltage measurement or a 2 for DC voltage measurement selection Set up the desired on channel RF signal to provide an input to the receiver Set Functio...

Page 45: ...ICATION OFDVM READING ICNITDE FM g 151 9550 m INPUT UflTTS 0 00 0 10 1 tBM flC 45 cvn MDIIE i i i flc E 1C PE RLflF M 05 0 K H Z flT 0 0 FREQUENCY DVM READING 1 DVM SELECT J AC OR DC BATTERY VOLTAGE 8521 24 Figure 4 10 Test Setup for Using DVM and Signal Generate with CRT Display 4 20 ...

Page 46: ...ment Repair Center via telephone Required replacement parts are then immediately shipped to the user thereby reducing shipping time and servicing costs For telephone troubleshooting contact the Test Equipment Repair Center toll free at 800 323 6967 5 5 All other inquiries and requests for test equipment calibration and repairs should be directed to the Area Parts Office They will contact the Test ...

Page 47: ... Parts Department 3125 Steeles Avenue East Willowdale Ontario Phone 516 499 1441 TWX 610 492 2713 Telex 02 29944LD 5 13 All Countries Except U S and Canada MOTOROLA INC OR MOTOROLA AMERICAS INC International Parts 1313 E Algonquin Road Schaumburg Illinois 60196 U S A Phone 312 397 1000 TWX 910 693 1592 or 1599 Telex 722433 or 722424 Cable MOTOL MIDWEST AREA PARTS 1313 E Algonquin Rd Schaumburg III...

Page 48: ...r Supply Module RF Input Module Protection Power Meter Card Converter Wide Band Amplifier Card Offset Generator Card Front Panel Interface Module Frequency Standard Module Front Panel Assembly Motherboard Assembly Part Number As Labeled 01 P00422N001 01 P00413N001 01 P00409N001 01 P00389N001 01 P00385N001 01 P00358N001 01 P00386N001 01 P00426N001 01 P00405N001 01 P00430N001 01 P00401N001 01 P00417...

Page 49: ... Figure 5 1 Communication System Analyzer Top View Cover Removed 8521 6 Figure 5 2 Communication System Analyzer Bottom View Cover Removed 5 4 ...

Page 50: ...n 8 bit data bus and a 7 bit control bus This bus interfaces the processor to its program memory ROM scratch pad memory RAM IEEE interface and the peripheral interface adapters PIA The PIA is the mechanism by which the processor interfaces with the system A PIA consits of a dual 8 bit latch which may be programmed as either an input or output for the microprocessor System input and control informa...

Page 51: ...ER VERT INPUT PROTECT DUPLEX AND GENERATOR I OUI WATTM ETER I 455 KHz IF EXT FWD PWR L TEMP T I _j EXT RFL PWR DVM INPUT BUSS A3 lc GFOFREO SCOPE DVM FRONT PANEL INPUTS DVM TO AIDCONVERTER CONTROL OFFSET FREO FRONT PANEL DISP t A12 EXT DVM FRONT PANEL CHAR GENZ AXIS VERT SINAD DVM INTERFACE EXT FRED A7 A9 AND SY NC FREQ COUNTER IN PROCESSOR PRO CESSOR EXT HORIZ INPUT 1 0 PROCESSORBUS SYSTEM CONTRO...

Page 52: ...In In In Sw In 500 1000 250 500 CSSG CSSG Hilla Gen 8 Out Out DVM MODE Cant Burst Image 8 Sw In Enab Enab Select Sw In Sw In Sw In WB MOD MOD MOD Pk Del Pk Del Pk Del Scope Vertical Switch Pas In ____ o 1v 1 o ow 9 MOD X 2 INV INV FM SWP FM MOD AM MOD Demod 10 VI 1V 100kHJ10kHz 1kHz 9 Enab Enab Sel Sel Enab Enab Enab ON V DN ON 0 01 500 700 LOOP MOD lnt DVM WB NB IF BFO Man Scope A 1000 00 1000 IN...

Page 53: ...00 MHz 1000 MHz locked loop The programming of the 500 MHz 1000 MHz locked loop is provided by the RF CONTROL BUS from the processor The SELECT SWITCH selectsone of three possible output points for the SYNTH RF output signal The first is from the 500 MHz 1000 MHz loop directly The second is from a divide by two on the output of the 500 MHz 1000 MHz loop which gives frequencies from 250 MHz to 500 ...

Page 54: ...enuator The total range of the attenuator is from 0 dBto 130 dB attenuation For the basic R2001 A the Step Attenuator is controlled directly by a shaft to the front panel knob With the IEEE control option the Step Attenuator is electrically programmable and controlled by the processor The front panel knob in this case is connected only to a rotary switch which directs the processor in setting the ...

Page 55: ...nd modulations can be accommodated with this system A block diagram of the monitor mode is shown in figure 5 6 5 42 The RF signal to be monitored is applied to the RF I nput jack on the RF Input module AH If the input level is less than 200 mW the input signal passes directly through the Input Protection circuitry to the Step Attenuator For input levels greater than 200 mW the protection circuit s...

Page 56: ...l Oscillator The Second Local Oscillator is phase locked to the 10 MHz system standard so that its frequency is as accurate as the standard The phase locked loop for the Second Local Oscillator is split between two modules A 10 245 MHz SAMPLE signal is compared with the REFERENCE FREQUENCIES from the RF Synthesizer on the Processor I O module A7 The comparison providesaTRACKINGVOLTAGEerrorsignalto...

Page 57: ...nge of 455 3 kHz The BFO signal is switched with the output of the 455 kHz IF Phase Locked Loop PLL to the frequency counter for frequency error determination The 455 kHz PLL filters and shapes the IF signal to make it suitable for frequency counting 5 51 When in the spectrum analyzer mode the linear IF Amplifier is shut down and the Log Amplifier is activated The output of the Log Amplifier and D...

Page 58: ...r The 23 bit DPL word is stored in the DPL Generator and continuously output when selected Either PL or DPL signals are switched to the Code Synthesizer Level control on the front panel 5 60 A 1 kHz reference signal from the RF Synthesizer is bandpass filtered to provide a low distortion 1 kHz sinewave to the front panel 1 kHz Level Control 5 61 Two sources of external modulation are possible A st...

Page 59: ...dulator and applied to the modulation determination circuitry MOD CAL AUDIO the audio amplifier SPKR AUDIO and the Modulation Output jack MOD OUT on the front panel The signal to the front panel jack is buffered by a Driver Amplifier to provide a low driving source impedance 5 64 The AM modulation signal at the output of the Select Switch is sumed with a 5 volt signal This combination provides a D...

Page 60: ... signal to the Frequency Counter circuitry The signal selected is controlled by the processor and is determined by the operating mode of the system 5 69 A 16 bit gated accumulator is used to determine the input frequency Gate times from 1 msec to 10 sec are automatically selected by the processor to give the maximum possible resolution The gate times are derived from the RF Synthesizer REFERENCE F...

Page 61: ...ements are made in sequence at an approximate rate of thirty per second The net effect is a multiplexing of the voltage information to the processor 5 74 Two modulation signals MOD CAL AUDIO and CARRIER MOD LVL and a demodulated signal DEMOD CAL AUDIO are made available to the peak detectors Positive and negative peak determination of the selected signal enables the processor to determine the leve...

Page 62: ...ntrolled autoranging over a four decade range Input voltages from 1 millivolt to 300 volt can be handled through the DVM Input 5 81 For DC measurements a lowpass filter LPFL removes AC signal components The filter provides approximately25dBrejectionat50HzsothataccurateDCmeasurementscanbemadewithsuperimposedAC line ripple When the AC measurement mode is selected the LPFL is reprogrammed for less th...

Page 63: ...nel is added The resulting DC offset positions the display horizontally on the CRT 5 88 Six decade sweep ranges from 1u sec to 100 msec per division are provided by the Time base Generator Control of the Time base Generator is from the front panel horizontal switch through the processor 5 89 Front panel external horizontal inputs are applied to the top of the horizontal vernier gain potentiometer ...

Page 64: ...e external vertical input or the modulation scope inputs The External Vertical input path is further selected between AC and DC coupling before becoming the vertical input jack on the front panel The modulation scope signal path is switched to one of three possible sources on the Scope DVM Control module Demodulation signals from the Receiver are selected via the DEMOD CAL AUDIO path and frequency...

Page 65: ...gnment procedure requires module extenders and a calibrated digital voltmeter in addition to the oscilloscope The extended procedure should be performed as required after servicing the system All adjustments not covered in this procedure are to be performed on suitable module test fixtures only 5 102 Test Equipment Required 5 103 The test equipment or its equivalent listed in table 5 3 is required...

Page 66: ...and allow a warmup time of 15 minutes prior to alignment 5 105 Basic Alignment Procedure 5 106 CRT Astigmatism and Geometry 1 Select the Monitor Function and the Gen Mon Mtr Display on the R2001 A Set the Intensity Control for a medium intense display 2 While using the Focus Control to maintain a focused display at the center of the CRT adjust the Astigmatism and Geometry potentiometers Figure 5 1...

Page 67: ... The Balance potentiometer affects the intensity on the left side of the trace 5 109 CRT Horizontal Centering 1 Select the Gen Mon Mtr Display on the R2001A Adjust the Intensity Control for a comfortable viewing brightness 2 With the Test Point Shorting Jumper connect TP1 of the Scope Amplifier Board Figure 5 13 to chassis ground 3 Adj ust the Horizontal Position Potentiometer Figure 5 13 so that ...

Page 68: ...he Code Synthesizer off the Ext Level off and the 1 kHz Level up about half way 4 Connect an oscilloscope with a calibrated vertical input to TP4 on the Scope Amplifier Board Figure 5 13 5 Using the front panel 1 kHz Level Control adjust for a 3V p p amplitude on the sinewave at TP4 6 With 3V p p at TP4 adjust the Vertical Gain Potentiometer Figure 5 13 for a 6 cm p psinewaveonthe CRT use the fron...

Page 69: ...anel Set the RF Step Attenuator to obtain a convenient spectral display 3 Adjust the Spectrum Analyzer Centering Potentiometer on the Scope DVM Control Board Figure 5 15 so that the spectral line on the CRT is centered about the center graticule line 5 117 Horizontal Time Base 1 Select the Tone Memory Display and the Generate FM Function on the R2001 A Program tone A for 20 0 Hz and Tone B for 200...

Page 70: ...creen to avoid nonlinearities near the edge of the CRT Figure 5 16 Hor zon l t Time Base Alignment Points Set the Oscilloscope Horizontal Control for a 100ft Sec Div sweep rate and select the Tone B output on the Code Synthesizer Adjust the Fine Time Base Calibration Capacitor on the Scope Amplifier Board Figure 5 16 so that one cycle of the displayed waveform occurs in 5 cm along the horizontal a...

Page 71: ...Input and connect the DVM Input to TP 12 of the Scope DVM Control Board Figure 5 18 Figure 5 18 Scope DVM Control Test Point Numbering 6 Disconnect the external DVM from pins 1 and 6 of J3 and connect it to TP 12 of the Scope DVM Control Board and chassis ground Note the DVM reading for TP 12 7 Reconnect the external DVM between pin 1 and pin 6 of J3 The external DVM should show a reading equal to...

Page 72: ... I O Board Figure 5 19 for a DVM reading on the CRT equal to the voltage measured at TP 12 with the external DVM for paragraph 5 119 6 12 Connect the external DVM to TP11 of the Scope DVM Control Board and chassis ground Note the DVM reading for TP11 13 Disconnect he external DVM from TP11 and connect the DVM Input Jack on the front panel to TP11 of the Scope DVM Control Board 14 Adjust the A D Ba...

Page 73: ...aracter Sweep Width Potentiometer on the Scope DVM Control Board FigureS 20 so that the bottom edge of the CRT display is approximately 3 3 graticule divisions below the graticule center line 6 Turn the system power off and reinstall the Scope DVM Control Board into the R2001A 5 121 Sinad Notch Filter 1 Turn the R2001A off and extend the Scope DVM Control Board using the 100 pin extender card 2 Tu...

Page 74: ...on the Receiver Test Cover for a reading of 30 5 on the CRT AM display 5 124 FM Detector 1 Select the Monitor FM Function and the Gen Mon Mtr Display Set the monitor frequency to 250 MHz the RF Step Attenuator to the 0 dB position and the BW Switch to the Wide position 2 Connect the external signal generator to the RF In Out Jack on the front panel Adjust the external generator for a center freque...

Page 75: ...ral line lies on the 30 dB line of the CRT and that successive step increases of the input attenuator move the spectral amplitude downward in 10 dB increments on the CRT The accuracy required for any one step attenuator position is 3 dB 6 It will generally be necessary to repeat paragraphs 5 125 4 and 5 125 5 until the best possible accuracy is obtained 7 Turn the power off and remove the Receiver...

Page 76: ...ultaneously depress both cursor keys and after a five second delay turn the system power OFF Turn the system power back ON and verify that the same Display Function and Modulation Modes are present 5 135 Modulation Capability 1 Set the UUT to the Generate FM Mode and select the Gen Mon Mtr Display On the Gen Mon Mtr Display enter a DPLcodeof 111 Select the Oscilloscope Display and connect the Mod ...

Page 77: ...1 verify the operation of each position of the Horizontal Control and the Horizontal timebase vernier 3 With the Horizontal Control set to the External Mode connect the External Horizontal jack to the Mod Out jack Verify a horizontal line whole length is variable with the Horizontal Vernier 4 Connect the Vert In jack to the Mod Out jack on the UUT Set the vert and horizontal controls for a conveni...

Page 78: ... tone at the speaker output 6 Connect the Modulation Meter to the RF In Out Jack on the UUT Set the Modulation Meter for a deviation display of 5 kHz 250 Hz 7 Select the Wide Band mode on the UUT and verify that the CRT displays a deviation of 20 kHz Also verify that the Modulation Meter shows a peak deviation of 20 kHz 1 kHz 8 Select the Modulation Display on the UUT and verify a peak to peak mod...

Page 79: ...Signal Generator for a 10 dB reading on the SINAD Meter Verify that the Signal Generator s level is less than 103 dBm 1 5 yUVrms 5 Calibrate the RF Signal Generator for 3 kHz FM at 1 kHz rate using the Modulation Meter Set the Generator for a nominal output level of 60 dBm and connect it to the RF In Out Jack of the UUT Select the Gen Mon Mtr Display and verify a monitor deviation reading of 3 kHz...

Page 80: ...y fora duplex output of 100 MHz Connect the Duplex Output Jack to the RF In Out Jack and verify a 20 kHz 1 kHz FM deviation reading on the CRT 5 146 System Troubleshooting 5 147 A troubleshooting procedure is outlined in Table 5 6 Because of the complexity of the system the table covers only the major failures and provides only a guide to the most probable failed module When using the table it is ...

Page 81: ...dthru cap on the high voltage supply and can be reached from the top side just beyond the CRT socket CAUTION There is 110V on the rear panel connector even when the power switch is turned off If 9 volts is not present replace the high voltage supply A1 3 If items 1 and 2 check okay replace the low voltage supply A1 1 Check for presence of high voltage by dis connecting the CRT anode lead and arcin...

Page 82: ...ace module A8 or check for the presence of the modulation jumpers on J8 for the standard unit 3 Continue troubleshooting at step 3 of the no DPL signal on the CRT 1 Check for presence of a 1 kHz signal at TP9 of the Audio Synthesizer A6 If not present check for the 10 MHz signal from the Fre quency Standard module A13 to the RF Synthesizer A5 If present replace the RF Synthesizer If not present re...

Page 83: ...Panel Interface module 2 lfthesignalisokayfromA12 switchtotheAC mode and apply an AC signal to the DVM in put Proceed from step 2 under DVM AC mode inoperative 1 Check for a voltage level between 2 0 VDC and 2 0 VDC at TP4 of the Scope Amplifier module A2 Ifthevoltagecannot be brought within range with either the vertical range attenuator or the vertical position control replace the Front Panel In...

Page 84: ...he RF Synthesizer 2 If the Synthesizer output is okay replace the RF Input module 1 Check for modulation signal at pin 56 of the RF Synthesizer A5 If the signal is okay replace the RF Synthesizer 2 If the modulation signal is not present pro ceed to the troubleshooting list under no DPL modulation signal on CRT 1 Replace RP input module A11 1 Apply a 10 7MHz modulated carrier td theRF input Check ...

Page 85: ...counted from left to right when facing the component side of the card Module A2 Scope Amplifier A3 Scope DVM Control A6 Audio Synthesizer Test Point No 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 Signal Description Horizontal Amp Input Horizontal Deflection Plate Horizontal Deflection Plate Vertical Amp Input Focus Tracking Voltage Vertical Deflection Plate Vertical Deflection Plate Z Ax...

Page 86: ...D A Output Ground Composite Modulation Audio Composite External Mod Audio Synthesizer Clock 104 857 6 Hz 1 kHz Modulation Source A D Input Unfiltered 10 245 MHz T V DVM Freq Counter Select Frequency Counter Input Not Used Ground Character Clock Character Row Clock Character Dot Clock Enable Character Line Clock R W Select Char Gen Processor Select Attenuator Buffer Output 5 43 ...

Page 87: ...SECTION 6 SYSTEM INTERCONNECT AND PARTS LISTS ...

Page 88: ...0 v Oo 1 ao J6 t 7 g g EEE t l I Oo l 50 1 11 1 C 13 k Do l 1 1 1 s a Oo J soo t C T l o o l UP M t 55 i r t uP1 t e c 1 _ t v 1 5 c Urt o l oO O Vel o VOl C 1 a uDIO t t 4 VOL 1 0 0 oJl5o l lo i oo 10 1orv 5WP 5tl 10 t DIV iW P 5101 f 1 5 I 81 0 FP Ii O I l o I T t g 51 lo LT 00 A l I g MOO 1 55 lt olt t lfii OI To l 1 ll u 5 1 1 12 l I 7 ll t 5 o IIO 0 00 Q To j 1 1 MOO 0 iJ J K Y 0 0 7 llli ec ...

Page 89: ...1 19 S 100 9 5 IJPc JT 5 a Q t LJ QST sco P oJT 4 MJPO ITI J 15 P I I I C llo IP JlL 7 T u JIO f t J D t e J o a r c o a 1 1 o eu o 1 IL 15 o eu 0 l C o i h TCI ll t e li J T lORI EtJ 41 rt TI l IA 1io J t r lii T Fioll 57 R l A c Aftl q MOD L JO J TI l _ p R oiChJ P tY O 0 b 5 o 1 L C tW 0 Ji t T 540P t W RI l o o UDIO l ttTO MP II tlOJZ P tl 5 JT 18 Tli MP 1 0111 0 t 19 MOO 1 010 I f O 0 0f J L ...

Page 90: ...Of MOD V CI I Q HT _ 11 0 0 Figure 6 2 Motherboard Assembly Parts Locator RTL 4060A 44 1 44 ...

Page 91: ...4 085 086 A 001 A 002 A 003 A 004 A 005 A006 A 007 A 008 A009 A 015 A 010 A011 A 012 A 013 F 001 F 002 F 003 J 002 J011 J 014 J 015 J 016 T 001 v 001 Qty Req AR AR AR AR AR AR AR AR AR AR 2 Part No Nomenclature Part Value 30 P06804A001 CABLE ASSEMBLY A11 A4 10 7 MHZ IF 30 P06805A001 CABLE ASSEMBLY SYNTH A5 A11 30 P06606R001 30 P06607R001 30 P06808A001 30 P06809A001 29 15159A03 SN63WAP3 M23053 5 10...

Page 92: ...C power removed and the unit off no power is present on the DC bus When the unit is switched to the standby mode the DC relay closes connecting the DC input to the DC bus and the supply voltage to the frequency standard is enabled Then with the unit turned on the chopper generator is enabled and normal operation occurs 7 6 DC Output Control Regulation of the DC output voltages is accomplished by r...

Page 93: ...f the thermal switch the switch closes to ground shorting the control line and shutting down the supply Normal operation of the supply will be resumed when the temperature returns to a safe operating level 7 12 Protection for high or low DC and AC line inputs is provided by monitoring the voltage on the DC Bus If the bus voltage exceeds 20 volts or if the voltage falls below 10 volts the shutdown ...

Page 94: ...LSE l r 1 WIDTH OOULATOR I 1 HIGH lo7 29 VOLT lHIGH LOW I CONTROL I VOLT SHUT DOWN m 020 22 281 l EWIDTH CONTROL U5 ICHOPPER GEN Sl AND I DRIVER OVERTEMPl A SHUTDOWN 09 12 rl CHOPPER h T2 T4 li OVER CURRENT I CURRENT t OET SH l XFORMER CURRENT h LIMIT U3 I J I u 1 BATI VOLT DC LEO AC LEO FREO STO OVEN SUPPLY 12V TO HV SUPPLY CENTER TAP HY XFORMER 04 DRIVE 06 DRIVE 35V 13V LOW VOLT RECTIFIER 12V AN...

Page 95: ... a c i 0 J r 1 0 r E 1 3 0 s 0 0 6f 0 2 0 C 1 iii tJ C 0 iil E 3 en f r c 1 0 0 s 0 118 0 0 l ____ _ _ _ ___ l r m 7 1f l R tS 8 0 5 m I I j N V r _ t _ _t 1 I J B ...

Page 96: ...I Lll I I I C4 1 o 1 e c 4 I J I4B a c 1 r t o 4 t l 5 I 5 101 I Ll PQV E l S T Af lOBY TT r C R 1 2 CD 3 o it I AI 4 1K ___ __________j I J 9 S Go v I E D JII I y f CD I z 2 1oJ r J G1 4 O IV 4 I T E M T O i T g 0 r c o 00 O E OV T T 7BT 1 P 0 RI T t EEJ Po L _ _ s_o J t l L V tt IT ii f 6 EE h 7_ r 1 GLI I CLJ I GLJ I I 7 I I I 8 no J I 2 10 1 1 11 G o lO OU TPU T PW6 b I Jl 5 ___ __ __ _ _ __ _...

Page 97: ... n 0 c co U r 0 l r Q 0 iii a 0 0 ro U 0 c 0 0 ...

Page 98: ...AA 5 5 AA AR AA 25 AA AA AA AA 1 AA AA 12 4 Part No B51566F011 MS35338 39 MS35649 222 9317 A 194 RTV3145 MS77068 1 Nomenclature WASHER LOCK WIRE WIRE WIRE WASHER LOCK NUT HEX SPACER ROUNO ADHESIVE SIUCONE TERMINAL LUG Part Value 16WHT 14WHT 20WHT N0 2 2 56 10X 25 TAPE NATURAL M23053 5 103 9 INSULATION SLEEVING 093 WHT MS3367 5 9 STRAP CABLE NATURAL 4 5 11 14167A01 INK BLACK WIAE BUS 22 SST21 M STA...

Page 99: ... L I 1 i L i r I 1 Low Voltage Power Supply Control Assy A1A1 ...

Page 100: ... 80345A60 48A00869571 48 80345A59 48A00869570 48A00869570 48 80345A43 48A00869570 48 80345A43 48 80345A50 48A00869570 48A00869570 48 80345A59 48R00869570 48 80335A79 6S124A45 6S124A57 6S124814 6S124814 6S124A73 6S124A44 6S124A03 6S125A33 6S125A33 6S124A73 6S124A65 6S124A65 6S124A73 6S124A73 6S124A65 6S124A75 6S124A73 Nomenclature D IODE DIODE DIODE DIODE DIODE DIODE CHOKE AF CHOKE AF CHOKE AF CHOK...

Page 101: ... fBl 1 1 F 1 11 l lf 10 II F 1 10 mrilFII ilmFI l J D llJlJD L J u tJ C29 C28 C27 C24 C2Z C85 C84 C81 NU11SS CASE 612 C17 C15 C23 C94 EB Low Voltage Power Output Assy A1A2 ...

Page 102: ...V 1A 20V 5A 30V 3A 30V 3A 20V 5A 40V 1 A 40V 1A 100V 1A 100V 1A 40V 1A Find No L 006 L 007 L 008 L 009 l 010 L 027 L 046 A 073 A 074 A 075 A 076 R 077 A 078 A 079 T 002 Find No 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 c 091 c 092 c 101 c 102 c 103 c 104 c 105 c 108 CR021 Qty Req Qty Req AA AA AA AA AA AA AA AA Part Number Nomenclalure 24 P...

Page 103: ...f time begins During the hold off time which is equal to the sweep time the sweep generator and trigger circuits are reset in preparation for the next sweep 8 5 Horizontal Switching The input to the horizontal deflection amp is selected between two sources The INT HORIZ IN signal line provides the horizontal character sweep and the horizontal spectrum analyzer sweep The othersource is the scope mo...

Page 104: ...T INTEN LVL SCOPE t AXIS FOCUS LEVEL FOCUS SAMPLE VOLT U10 TP1 SCOPE y MODE 1 U9 SEL TB U3 4 5 7 11 EXT r J HORIZ SEL HORIZ A U6 U10 TB GEN r I INTENSITY CONTROL CIRCUIT U13 06 INT LVL GATE FOCUS CONT CKT U24 01 5 Z AXIS MOD I _ _ _ _ _ _ _j U28 024 25 29 30 HORIZ DEFL AMPL I TP6 y TP2 J2 f VERT DEFL PL 4 VERT DEFL PL 5 I I I HORIZ DEFL PL I SWP BLANKING J P1 16 TP9 J1 y INTEN TV I I I TPB I y CRT...

Page 105: ...R182 ars1 m1R EJ J ITmJ Figure 8 3 Scope Amplifier Parts Locator oB 1 001 ciliir u R105 oooo t i i 0010C6801 GQ 126 D 0i33l D o o RliJ 010 C76 S 016 BgJ ...

Page 106: ... li y q_ mill l llll s s g ii l t 0 c t 2 i NZo 0 c IJI F lJ r 1 Q f c R n z c 6E 0 h 0 0 t E j o c ib Cf JJ 0 0 1 T 0 r 1 0 I 3 1 8 o 3 0 i 0 iil 3 1 ...

Page 107: ...28862 CAPACITOR 21 D82428862 CAPACITOR 21D82428962 CAPACITOR 21D82187806 CAPACITOR 21 D82187806 CAPACITOR 21 D82428862 CAPACITOR 21 D82428862 CAPACITOR 21 D82428862 CAPACITOR 21 D82428862 CAPACITOR 21D82187806 CAPACITOR 21D82187806 CAPACITOR 21D82187806 CAPACITOR 21D82187806 CAPACITOR 21 14032G97 CAPACITOR 21 14032G97 CAPACITOR 21082428862 CAPACITOR M39014 02 1350 CAPACITOR 21 D82428836 CAPACITOR ...

Page 108: ...621 A85 06 10621A85 06 10621 C07 06 t0621C07 Nomenclature RESISTOA VAAIA 3LE RESISTOR RESISTOR AESISTOA VARIABLE RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR VARIABLE RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOA VAAIABLE RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR...

Page 109: ...output of the receiver logarithimic IF is the vertical input for the spectrum analyzer The remaining signal source is the second IF signal from the receiver for IF envelope observation 9 5 For the spectrum analyzer and the scope sweep displays the Dual Display Control and Character Sweep Counter circuitry allow a single row of characters at the top of the CRT This function is implemented with the ...

Page 110: ...MHz and 0 01 1 MHz 9 12 Scope Z Axis Control The SCOPE Z AXIS signal has three possible sources as selected by the Z Axis Control circuit For character displays the Z Axis signal is the CHAR GEN Z AXIS from the character generator The SWP BLANKING signal from the horizontal timebase generator is switched to the scope Z Axis for the scope modes For the remaining modes spectrum analyzer and scope sw...

Page 111: ...g to the last cycle reading made at that input Thus each internal input is auto ranged over two decades to give three digit accuracy up to a maximum input of 10 volts The internal DVM inputs and their function are listed in table 9 1 Table 9 1 Internal DVM Inputs Peak Voltage Peak Voltage Carrier Level RF INPUTPWR EXT FWD PWR EXT RFL PWR BATT VOLT TEMP SENS VOLT SINAD OUT SINAD IN Positive modulat...

Page 112: ...ed and input to the processor where the SINAD is calculated 9 22 Module Control Processor control of the Scope DVM Control module is via the AF ADD BUS 0 3 the AF DATA BUS 0 3 and the AF BUS EN 1 signal lines The four address bits are decoded by the Address Decode to determine which Control Latch the fours bits of data will be latched The latching process is synchronized by the enable line Control...

Page 113: ...I 7 IFI BFO I SEL l FREO IFIBFO FREQ 1 KHz BFO FREQ I LL J 1 I j DISPERSION SWP RTN mr 455 KHz 1 I r _ WIDTH DISPERSION SWP 1 I U12 51 59 SEL I 6 95 SYNTH swP SYNC I I s H 1 I us2 Ll us 1 52 I l GEN I SCOPE I B3 I HORIZ CHAR SYNC I l I HORIZ I INT SCOPE HORIZ I I CHAR I I l HORIZ L SEL I 7 SWP GEN I I I I U59 60 11 I sw I SCOPE MO H HORIZ I t _ COPE HORIZ CONT CONT I DE EN I 84 j I I r m 1 87 CHAR...

Page 114: ...f t i r t 8 I I I im I 0 _ 8 I I I J I I I I I I 1 Cii l r 0 a J c 1 ib r s 0 0 0 m 0 t 0 0 m r ...

Page 115: ...oo cuuo S I w 1 c CD o ill 4 1 Po I I Sl l 4 c rr J W it Sl l 4 G J Po5 I I I SM 4 c J POi I I Z DI S44 D J l_ _2 r RC 5 3900 c J 010 101 o 4 CD ov a OiJD D J4 o Ill _ 4 aLl ovs Ex H L dE n R Oo T EMP SEt JSOR VOL1 ie y S44 P G It I OIA 7 BA TTE 1 VOLT u 40C C PI I GoO r G JE Tq DVM OM R SW G tr t E 1 2 1 14 trrj ov r I 3 0VM TO tt D ...

Page 116: ... C1 1 s 0 c i f f 0 0 C1 _ 0 s 0 0 l Q_ s 0 Cl c ro w r 1 I I I I J J G c frt j1Jo tl 0 c fi I _ I I I 1 J9 8888 l O IlO ll fll l lrfl r r f r r r c i r r r r ol N 0 0 I 3 N j g 0 0 g ili 0 11 j r 1 J i i g 0 c 0 Plf I f ll 0 t 0 c c 0 k c J 0 ...

Page 117: ... Figure 9 3 Scope DVM Control Module Parts Locator 00001800 illi 8 cr 1 r 1 I R168 I r E j 0 U20 It Q CMLJ _ J a r EIJ C37 8 ii i 1Q _ L 0 c K J ...

Page 118: ...665F01 23084665F01 23084665F01 23084665F01 23084665F01 48 80345A73 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 84463K02 48 8 4463K02 48 84463K02 48 84463K02 48 84463K02 MS90539 07 48R00869570 48A00869570 48 80341 A48 48 80341A47 48 80345A48 48R00869571 06 10621001 18D83452F11 06D83175C03 06 10621D96 06 10621C67 06 10621 D05 18D8345...

Page 119: ...019 u 020 u 021 u 022 u 023 u 024 u 026 u 028 U029 u 030 u 034 u 037 u 038 u 039 u 040 U041 u 042 u 043 u 044 u 045 u 046 U047 u 048 Oty Req 1 6S124A65 06 10621021 06 10621D48 06 10621021 06 10621D21 06D63175C03 6S124A73 6S124A73 06 10621D21 06 10621D52 06 10621021 06 10621 D21 06D83175C03 6S124A73 6S124A73 6S124A73 6 124A73 06 10621 DOl 06 10621C67 06 10621C83 06 10621C67 6S124A65 18D83452F01 18D...

Page 120: ...H LVL from the front panel is compared to the AGC voltage When the AGC voltage fall below the squelch level indicating a strong signal the SIG PRESENT line is activated With the SIG PRESENT active the audio is allowed through the select switch and the signal present light on the front panel is illuminated To warn the operator when the IF input level is beyond the linear range of the IF amplifier t...

Page 121: ...e DVM Control module 10 11 Alarm Generator and Audio Amplifier An astable multivibrator operating at 1 2 kHz is the Alarm Generator The Alarm signal is controlled by the processor and is summed with the VOL CNTL AUD RTN signal at the input of the Audio Amplifier The SPKR ADD output of the amplifier has 0 5 watt capability and is connected directly to the system speaker 10 12 Module Control Address...

Page 122: ... I I CR1 U2 i SEL FIL IVOL CNTL AUD I 64 I I FIL I I 9 MPL AM AuiJ I I 62 01 DET BFA I I U11 12 28 I P1 b CONVERTER __ _ _ ___ j AGC I v I I SQUELCH LVL AGC AMPLI I I I ffi RF LCH ADD 13 u 21 24 L I I I RFLCHADD14 I I f __ _l_ _____________j CONTROL 1 LATCH 19 61 53 55 45 47 49 51 I RF DATA BUS 0 3 455KHz IF J3 I I IF OVLD 58 I I I I I SIG PRESENT r 59 I I LOG l I AMPL SPECT ANA VERT DET I 17 I U1...

Page 123: ... C11 IT RF1 RF2 Figure 10 3 Receiver Parts Locator Sheet 1 I L19 l C101 ueoe v C79 v C80 ...

Page 124: ... _ I I I ...

Page 125: ...0669570 48R00069571 48R00869571 48R00669571 48R00869570 48R00869571 48R00669571 48 83827031 48ROOB69570 48R00669570 48R00869571 48 84302A36 48R00669570 48R00869571 6S124A25 65124822 6S124A89 6S1248 10 6S124A79 6S124A53 6S124A25 6S124A69 6S124A56 6S124A73 6S124A67 6Sl24A25 6S124A85 6S1 24A73 6S124A73 6S124A75 6S124A25 6S124A85 6S124A73 SS124A49 6S124A25 6S124A81 SS124A77 6S 124A45 SS124A65 Nomencla...

Page 126: ... appropriate frequency source is switched to the SYNTH RF output by the Output Select switch 11 4 A basic flow diagram for programming the RF Synthesizer is shown in figure 11 2 This diagram includes generate and monitor considerations wideband amplifier control and modulation control 11 5 310 440 MHz Phase Locked Loop A single 310 440 MHz VCO is phase locked to the 100 kHz reference input using a...

Page 127: ...ol provides programmable gain control to maintain constant sensitivity at the FM MOD and SWEEP inputs Additionally the wideband modulation mode requires a gain of four beyond that for the narrowband mode Thus under the control of the processor the Modulation Control selects between the SWEEP and FM MOD inputs provides gains of 1 2 4 and 8 for the FM MOD input and gains of 1 and 2 for the SWEEP inp...

Page 128: ...C SYNTH 1KHz SYNTH 5KHz SYNTH 10KHz SYNTH 50 KHz SYNTH 100Hz SYNTH 500 KHz OUTPUT ISYNTH RF SELECT 15 16 s 6 7 8 3 4 11 12 9 10 13 14 J2 C R 2D6 208 210 212 223 226 K201 LO HI IBAND ALC VOLT I SELECT 67 68 I I CONTROL I 7 57 58 45 52 j RF ADD BUS 0 3 I f j uso I 1 21 22 RF BUS EN L U112 123 137 145 U136 RF LATCH ADD 13 14 28 29 8521 34 Figure 11 1 RF Synthesizer A5 Block Diagram ...

Page 129: ...UTPUT SET MOD X2 SELECT 700 1000 MHz VCO CLR 500 1000 LOOP INV CLR MOD INV F310 440 Fc2 60 5 MHz YES F1000 PGM FREQ SET 5m 1000 OUTPUT F 2 F1000 2 CLR 250 500 MHz OUTPUT ClR MOD X 2 YES F1000 PGM FREQ 550 MHz CLR 500 1000 OUTPUT SELECT 500 700 MHz VCO SET 500 1000 LOOP INV SET MOD INV F310 440 F f2 60 5 MHz INTERGER F310 440 J N310 440 INTERGER 20 j5 f PNTERGER F310 440l A310 440 40LDECIMALt 20 10...

Page 130: ... T V 3 l0 440MH t VCO T V F o FM MOD t SWEeP f 5 MH VC O T V i T FLI E4 E 7 o 1 DE TEL TOR E 9 Ec o I OM H t E 19 E 0 310 440 Ml i t E O El MHt REF E 2 2 E 18 IO S Ml l t E3 E 0 5 MH t MI l4 E l E 2 40 I 500 IOCOV t ENABLE I oE 2 4 C l E l 3 0 I 2 50 500 lvlt I I E J f BLE 1 l 0 j T IE _ 0 G ITP I _ t T E S Z ER E S wEEP CZ I F E c o I NC Io J v J C3 E S 0 1 1 D o N _ 4 E 4 GA 0 C S E c E 4 I c c ...

Page 131: ...01 f l ICR10SI I EJ rc171 oog 8 U132 8 0 c ar Moo U147 E I uTn I I U134 EJ 8 1 C170 c Figure 11 7 Digital Synthesizer A5A1 Parts Location 00 00 I R169 I U136 U137 U121 0U138 C142 c J U111 U122 U139 U112 U123 0 U140 0 U113 U124 00 U125 U126 U128 00 U141 U142 U143 U144 U145 0 ...

Page 132: ... 1 I go tc it tcf g f R H 0 t F il it 8b t g l j s s n a 2 HH t t t i t t t H H e i E i r f m c r l Hi f i i r rH o f tt H l n r g q HI H r 1 ei H g g t H g sms s o i ...

Page 133: ... R202 g L J R o nR262m r IR288 L246 OC349 N tJ 0 a Jmr 7 a R237 230 220C348 0R420 C 4 rfe06 0 R4QR421 C227 a mEl cnJ C385 C240 I R262 C387 R267 D CJ g N N C342 0 me r 37 0 RhlsD a n R269 I R270 N o f 5 m u 0C287 0 R263 R 264 r l C246 c J 0 C244 C371 D c gaR258 5 L20a Cimo c J J tiL I K201 I R257 256 CR209 8 r l LJC2 ICR2osli __ c38itJ n o o o U ror 1 C245 Cl 5 0 C35o0 I U206 J 8 ...

Page 134: ... n a c il i JJ 0 n i T t1 3 J c t1 0 0 l i 3 a Cii T 10 t1 1 Q I L 5 H 0 r u l v 1 1 o f IH IH 8 8 z ...

Page 135: ...V o 4 EQ P J li 8 t s 3 7 J I j 1 9 C Z9 4 tpr r r _Lr 00 5 0 N Ht R OO f o no T IT J 3 T CKJ TUW 1 J o f T o c 4 OY I N I C 50 C 2 I 1 1 PF ft Jr j Z Z n I ZV l 0 1 8 1 1 1 b l0 t J 0 A tl oo 1 Figure 11 5 RF Synthesizer Card A5A2 Schematic Diagram Sheet 2 of 3 RTC 4010A R1 7o _ 7 ...

Page 136: ... rr li f 8 _1 l gQ 1 f o 1 a J 0 uJ gg 8 f H 0 f t 0 0 S g 0 0 0 b Jk BBB E Ot 0 _01 H_I J o m m B g m O 0 B 8 6 8 I r IH m m s 5 01 o 0 0 H t u 0 g ...

Page 137: ......

Page 138: ...0 100 10UF 25V l OOOPF 10 100 t OUF 20 35 270PF 10 SOO 33PF 5 100 l OUF 20 35 100UF 25V 10UF 25 10UF 25V lOOOPF 10 100 l OOOPF 10 100 1000PF 10 100 1000PF 10 100 1000PF 1Q 100 1000PF 10 100 t OOOPF 10 100 100UF 25V 100UF 25V 10UF 25V OlUF 10 100 Find No L 101 L102 L103 a 101 a 102 a 1o3 a 104 a 10s a 1o6 a 101 a 108 A 101 A 102 A 103 A 104 A 105 A 106 A 107 A 108 R 109 R 110 R 111 R 112 A 113 A 11...

Page 139: ...C 330 100PF 2D 100 C 331 100PF 5 500 C 332 01UF80 20 200 C 333 68PF 5 500 C 334 01UF80 20 200 C 335 01 UF80 20 200 C 336 82PF 5 500 01UF80 2Q 200 01UF80 20 200 390PF 10 500 3 9PF 25 100 3 9PF 25 100 12PF 5 100 S SPF 25 100 5 6PF 25 10C 18PF 5 100 15UF 20 15 01UF 10 101 15UF 25V 15UF 2SV 6 8UF 10 35 100UF 25V 4 7UF 20 2C c 337 c 338 c 339 c 340 C341 C342 c 346 c 347 c 348 c 349 C350 C351 C352 c 353...

Page 140: ...m A Am Am Am Am Am Am Am A R AE A A R AW A A A200 Am A A A Am A Am Qty Req Part Number 6S185A33 6S185A09 6S185A85 6S185A95 6S185A47 6S185A49 6S124A25 6S185A18 6S185A41 6S185A43 6S185A43 6S18SA53 6S185A33 6S185A33 6S185A25 6S185A05 6S185A05 6S124A97 6S124A85 6S185A57 6S185A49 6S185A53 6S165A45 6S185A09 6S185A09 6S185A21 6ST85A49 6S185A49 6S185A49 6S185A49 6S185A49 6S185A49 6S124A73 6S124A65 6S185A5...

Page 141: ...1 4 91K 5 1 4 22K 5 1 4 3 3K 5 1 4 SSK 5 1 4 2 0K 5 1 4 22K 5 1 4 120K 5 1 4 10K 5 1 4 100 5 1 4 91 5 1 8 tOK 5 1 4 100 5 1 4 100K 5 1 4 18K 5 1 4 100 5 1 4 12K 5 1 4 12K 5 1 4 10 5 1 4 lOK 5 1 4 820 5 1 4 1 2K 5 1 4 10 5 1 4 lK 5 1 4 lK 5 1 4 tK 5 1 4 tK 5 1 8 10K 5 1 4 tK 5 1 4 2 0K 5 1 8 100 5 1 4 tK 5 l 8 3 3K 5 1 8 1K 5 1 8 470 5 1 8 680 5 1 8 330 5 1 4 330 5 1 4 4 7K 5 1 8 100 5 1 8 220 5 1 ...

Page 142: ...and thus the final output frequency A 20 Bit Adder adds the control word to the current word in the 20 bit accumulator Latch At the next increment time the Adder output is latched and becomes the next input to the Adder 12 5 Conversion of the linear digital output of the 20 Bit Latch accumulator into a sinusoidal digital output is the function of the Decode ROM A Digital to Analog D A converter fo...

Page 143: ...ite modulation audio The composite signal is then routed to the Scope DVM Control module MOD CAL AUDIO for modulation determination to a buffer amp which drives the front panel modulation output MOD TO FP and to a Modulation Select Switch which routes the signal to the desired modulator 12 13 Modulation audio is switched to the speaker VOL CNTL AUDIO for any generate mode to the DSBSC modulator DS...

Page 144: ... I 1 r I o DC Q1 2 U l OPlClK OPl I MOD TO rP I I 4J 44 I MOO CAl AUDIO I 1 49 TP1 INT M OO I 1 r25 2 I I I I I I II LJ liif I I I I 34 ___ __ G N I I U46 m I I SYNTH IKHz y IKHz SINE I 41 42 I BP Fll I 5 46 I I I I I u I 1112 MIC IN I I UJ1 m 1 J 14 1 EXT MOO IN I L I I tXTMOO I 2 J 24 8521 31 Figure 12 1 Audio Synthesizer A6 Block Diagram 12 3 1 2 4 ...

Page 145: ...GO U45 Q E v GD Cs3 L C38 L Figure 12 3 Audio Synthesizer Parts Locator w 0 ...

Page 146: ... 4 348 C Go4 lt 4 IGoOO BOO l fo 4 0 H2 V E I T t IOD lo JPUT l l 14 IHO Q I 00 OK 00 oi S t 04 Ml 5 9 1 ry r 0 o o u i c r ot t3 e o h f l e IOit 3 ftL 4 L c Qt _ 0 v sv mv v 4 30 l S r P L uv J oh i t I Z V I Z V _Go 1 1 Ul 9 loJSUl L_______l_ I Z V 4 44 100 Tel I IO rT PW I _ I 3 4 4 l o f 0 nu s g U t M I l4P 4 11 101 z g g I l IN 4 7 Q 101 8 Ul u o 4 lA II I q 1 0 10 A0 I II 00 r II OQ C 0 1 ...

Page 147: ...DIODE ZENER DIODE ZENER DIODE OIODE ZENER DIODE DIODE DIODE DIODE DIODE ZENER TEST POINT TEST POINT TEST POINT TEST POINT TEST POINT TEST POINT TEST POINT TEST POINT TEST POINT COIL COIL INDUCTOR INDUCTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR RESIS...

Page 148: ...s at one address as there are bus enable lines The system utilizes one RF bus enable and two AF bus enables for a total control bus capability of 192 bits The second bus enable for the AF control bus is on the processor card 13 5 For internal timing ontonesequences theprocessorisinterruptedevery10msec When interrupted by the timing input the processor stops it current process acknowledges the inte...

Page 149: ...H 1 kHz signal is the reference input for the generator Selection of the gate time is by processor control to give a five digit or 0 1 Hz resolution frequency display 13 11 Zero Beat A zero beat with the incoming carrier is obtained by successively mixing the 455 kHz IF BFO FREQ with 500 kHz 50 kHz and 5 kHz The beat signal that results from the mixing drives the ground return circuit for the sign...

Page 150: ...MI i9 I RESET 70 87 MA 88 90 R W I I I I I I U25 I I I TP3 I ZERO BEAT DET U32 10 245 MHz VCO TV AF BUS EN2 P1 L 9 I RF ADRS BUS 0 3 37 44 RFQATABUS0 3 50 55 57 AF ADRS BUS 0 3 1 3 15 17 19 AF DATA BUS 0 3 29 36 I I I I I I I I I BEAT NO I 21 Figure 13 1 Processor 1 0 A7 Block Diagram 13 3 13 4 8521 32 ...

Page 151: ... o 0 0 CD Q 0 o D i r 0 0 D Q D g EJ G n n o rJl l 18 I J lJL_j t JEJ EJ LV 2 Q 10 c c eLJLJN w l n 0 0 n 0 r l fn Jan ni J L J LJ t J EEl s DD ffi8 35 88 8 0 0 B 8 0 D0 D0 8 D8 D0 8 0 8 ...

Page 152: ...4L5l H 111Cl 040 IIIC 503 11104503 MC1C50 l4LSN M 0U UOOI IA UOOI IA nM LIOOIIA lltC1407 M u u w w u 7 l l u u u u u u IIOTUS 0 C3 I C I C 28THROCZ CF 5 Q9 R O I R R4 l U U4 I I 14 5 5 l TH I r 7 2 127 N r 1 N I U 5 s r 5YNTI 4 1 1 u e IOII D IOl 1 10 161110 I kt I lL z u 2 u u w w 5114 U C OIItO IZ r l t 1 o ww uHr u u 0 RS U3PI 00 10116 2 4 L_ S o C4 I lOS fto dlW ll H Rio 00 9 USB 1407 211 8 _ ...

Page 153: ...4 18 J 1 v c J rt cr 1 114 0 JIG l u J9 L___ tJ I OP I I 14jr P 0SQ if Ulf A I I T os4q UI A C FF 74L0 4 T 8D 00 l Ull t Ul q 7 o J SH3 SH3 SH3 _M SH3 8o PRPHL J 1 IJlf C l ADPTR f GMI 10 j 35 PB 0 II l 33 PB1 7 I A6 t I D2 PBZ I2 2 AD 0 D 13 29 q D4 PB 5 8 D5 14 13 ct DG 15 1 1 1 A t l sD 6 o i B6 19 AA 5 RSI PB 2 50 0 2 so PAC 3 6 I RF DATA 4 CS I PAl 4 55 z BoSS S E PA 1 5 57 3 R W PA CO 37 QES...

Page 154: ... oK sv U l 0 Q SV 19 ro i SV c CCQ IOOPJ OI r e pc CR3 IN41 45 GR4 I i414B SV I R IS so o 1 6 I _ r R 0 7 SK I PC T SPARES 8 UHC 40f l 4 U oB U331 U338 14 l 8 J J tl t0 J t ts_r j _l 4 f J J t J J f j j j J rt 1 89 J N 1ft z lPQ Q Figure 13 2 Processor 1 0 A7 Schematic Diagram Sheet 3 of 3 RTC 4012A ...

Page 155: ...24A57 6S124A43 6S124A53 6S124A73 6S124A73 6S124A69 6 124A73 6S124A73 6S124A89 6S124A73 6S124A65 06083115C72 06D83175C72 06083175C72 6S124A65 06D83175C51 18D63452F01 06D83175C72 6S124A85 06 10621 D88 06 10621A97 06 10621088 06 10621C27 06 10621 D68 18D83452F13 06D84444A75 t8D63452F13 06 10621C91 06 10621C63 06 10621C91 65124816 6S124A49 6S124A25 6S124A97 06 10621 F55 6S124A29 6S124A29 6S124A29 6S12...

Page 156: ... programmed for unity gain so that the AM MOD DC REF I signal from the front panel RF level potentiometer controls the RF output level 14 4 For the IEEE control option a electronically programmable RF step attenuator is installed in the system Control of the attenuator is then from the processor through the Address Decode and Control Latch circuitry on the Interface Module 14 5 Modulation Control ...

Page 157: ...iRll BUS INTERFACE VMA E R W IEEE OPT DET r RFLEVELcoNT I I I SEL SW U24 34 44 AND 51 64 65 PRGM I ATTEN L _ _J r i 10ociiNT l I SEL SW U27 37 47 I AND 52 66 67 I PRGM I ATTEN I I I I SEL SW U26 36 46 I AND 52 66 67 PRGM ATTEN I I I I SEL SW U25 35 45 l AND 52 64 65 I P RGM ATTEN I _J AM MOD DC REF 0 P1 INT MOD RTN 0 EXT MOD RTN 0 1KHz SINE RTN 0 I I 10 DB 20 DB 30 DB 35 DB DI01 DI08 DAV NRFS NOAC...

Page 158: ... cCi c Cil t m m m ro 4 S 0 CD 3S 0 a c D U S l r 0 0 S Q j I i 0 ...

Page 159: ...ii CD C Ql 0 3 a c QON D CD r I I I I J FF i a h Eg 2 i E g q J 0 t o a I I I I li 51 vNn 1 1 30 ld0 31i31 to O 50 LO c N J 3 i UO 1tw 401 0 N 1 31 110 i 1 1V IOI O L N 31 L3 i t i0 11 1 13 li i I IQ r 1 W C N IJ 3N Q J iS UO C J 3 iHO 3ttnJ JJ J UHO N 1toll IX lf l 1 1131 Q Q ...

Page 160: ...CIRCUIT Part Value BLACK 1 8X 312 4 40X 312 26 150PF 10 500 150PF 10 500 150PF 10 500 150PF 10 500 220PF 10 500 220PF 10 500 220PF 10 500 220PF 1Q 500 01UF80 20 200 01UF80 20 200 01UF8Q 20 200 01UF8Q 2Q 200 Ol UFSQ 20 200 01 UF8Q 2Q 200 01UF80 20 200 01UF80 20 200 01UF80 20 200 01UF80 20 200 01UFBQ 20 200 01UF80 20 200 OlUFB0 20 200 01UF80 20 200 01 UFB0 20 200 01 UFB0 20 200 Ol UFS0 20 200 10UF 2...

Page 161: ...the IEEE option detector input IEEE OPT DET theAF BUS EN1 signal line and the nonvolatile memory NVM Data that is to be held during power off is stored by the microprocessor in the NVM Then when power is turned on the microprocessor reads the contents of the NVM to obtain its start up mode the RF and tone memory presets and the rest of the preset data If the operator changes a preset the microproc...

Page 162: ...d by the CHAR LATCH signal A Character ROM decodes the seven bits plus a three bit ROW ADRS to determine the dot pattern for the current dot row scan position for the character to be displayed The dot pattern is then parallel loaded into a Shift Register and clocked out serially to give the CHAR GEN Z AXIS pulse modulation sequence It should be noted that each character line on the CRT is scanned ...

Page 163: ...A U14 15 21 ADRS BFR l ADRS 1 BFR I U25 29 30 U22 23 CHAR LATCH I 7 BIT I I LCH I 1 U24 I CHAR I ROW ADRS ROM I RAM 1 I 1K X 1KXS U18 19 lU20 DOT CLOCK r SEA l I SHF r REG U9 PIA AFBUS EN 1 t I NUM J U11 13 AO A15 D O D7 HALT NMI RESET IRQ VMA E R W CHAR G EN Z AXIS VERT CHAR SYNC HORIZ CHAR SYNC LINE 1 E XTAL P1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 11521 18 18 7...

Page 164: ... 2S ZS 1 25 s 9 191101lll zl l 41 l oo J7 lnl eii Jholtolll J zs oo 5 04 i t W t Ul Js X TAl l4 C W M lCROPRC S b 7 1 I l 0 00 2 U 13 7 Ill 19 Ill 0 H P0QOOODCI o N ffl llltO t O lCIOatlOO 92f g 4f 331 l619 f l n DO 01 02 D3 04 05 DG 01 2 1 14 I 5 I I 7IB I9 Nm tlfii Si t CJl f 4 DIR E tJBLG W C6 C 74Ul o 74U z r u 74L 2 9 U 0500 _ U O t3U 8 0 o wet 74lSl 1 wcw C7on NC Q U nLSW 74 LUU 74U2 l l UID...

Page 165: ...T Ql Ql j C1 l C1 Ql Q CD 0 6 C 0 r VMA_j AIS If 1 1 A12 l J lA A l3 i IB I II 0 J jl 0 ill 6 c f 6 X AO RSO PAo _ 7 AI ffi RSI PAII y 7 A4 CSI PAzl 7 Al4 CSO tl PA3 4 E E R W R W 6l C PA4 6 PACj _ 7 PAGI _ 7 PA I 7 PB7 l DO Dl D2 1 D3 j D4 dl 0 5 DG D7 PB3 CB2 PSG I L_______ __________________j lRc l I 0 z t r I lJ e g I I EE OPTDE T ...

Page 166: ...1 0 5 f 9 II 13 85 7 9 I T wu a w I u UDUJ U I 1 4 I UI S I 1 lE X 8 F R I H E 6F R 2 occs E z 3C S dl u a wu 1 wu ow u ITIGI TII4 1214161101 1 T 0 rl Ill t9 4 U35D 9 e 0 4 5 9 II 13 i rouow u l l UIG HE X BFR E 2 3GS fdl 0 Q 1 11 u 2 4 G 10 1 21 4 1 4 1 3 11 11 m s 3 AO IO AI 7 A2 4 A S A4 2 A5 I AIO ll A7 16 AS IS 10 3lshl9llll13 l f 5 1uu a w u 1 _ urr c2s t i I HE X BFR I 22 0 RND M ACS E 2 8 ...

Page 167: ...P2 TfG S A pCLK IWHt I 1 0 j e CPI s 7 u Z g 4 8 ll O A l BIN CTR U OD 0 3 04 IQO 2 D fl U IF J 04y 13 0 81 1 C TR TP3 J U32A 20 2 0 5 11 14 SV 14 w TP4 4 U Z lF 104 3 sv CB 001 F S i C 2 4 Rr l UI ZOK 5 1 SHI 5H3CI J I q 5 3 p SH3 Q SH3 R lffi I I I _ lgl l 7A I 4 Ll L 1 Go B UI l 8UH SV D 1 1 PF Rl8 CLl 2 1 PF CHAR S NC HORI2 I E RT to 119 o U2GD U2GC 00 00 12 1 3 10 9 1 5PARES U35 SV SPARE CON ...

Page 168: ... 0 c il I c i c GiQ I c I J I TP1 c OTIJ 0 C24 0 I c 1 l c 0 C n1 I oi s QQI c 0 ii 0 0 0 OIJ 0 1 I c w G I c 01 I QQ I c 0 I 5 1 c l I B c 0 9 I c I 09 I I I D 9 I c 0 I GQ GD GQ 4 g9 I c I c l 1 1 I c ...

Page 169: ...V 10UF 25V 10UF 25V 10UF 25V 1 0UF 20 35 1 0UF 20 35 1UF80 20 25 1UFB0 20 25 01 UFB0 20 200 1000PF 10 100 1UF 20 16 01 UFS0 20 200 21PF 5 500 21PF 5 500 220PF 5 500 68UH 68UH 33K 5 1 4 3 3K 5 1 4 3 3K 5 f 4 lOK 5 1 4 IOOK 5 114 2 2K 5 1 4 5 6K 5 1 4 5 6K 5 1 4 2 2K 5 1 4 IOK 5 114 Find No A 013 A 015 A 016 R017 A 018 u 001 u002 u 003 u004 u005 U006 u 007 u 008 u009 u010 u 011 u 012 u 013 u014 u015...

Page 170: ...the CRT heater drive 16 3 The 2 kV is regulated by comparing a sample ofthat voltage to the7 9VREFsignal The resultant error signal HV CONTROL controls the level of the DC input to the high voltage transformer 16 4 A Bias Divider circuit on the primary center tap provides the operating potential for the Q4 Q6 drive winding in the low voltage power supply 16 5 Intensity and Focus Control An 87V zen...

Page 171: ...2V TO HV SUPPLY P1 2 INTENSITY T V P3 6 FOCUS T V P3 8 CRTZ AXIS P3 9 U101 87V HV REG v m v H V CONTROL HEATER CRT HEATER CRT CRT ANODE 4000V U302 0302 INTENSITY t CRT GRID MODULATOR INTENSITY SAMPLE J CRT CATHODE 2000V J FOCUS ll CRT FOCUS MODULATOR FOCUS SAMPLE U301 0301 HV REF P1 6 P1 3 P2 1 P2 14 P 5 P2 3 P3 5 P2 2 P2 4 P3 7 P3 10 8521 28 Figure 16 1 High Voltage Power Supply A10 Block Diagram...

Page 172: ...ator A10A1 High Voltage Power Supply A10 Parts Location C212 R11 4 8 I R109 I c J Cc c C111 i1J c C116 High Voltage Regulator A1CA2 04 GID J L J 8 w I R319 I C302 B I I I R3l3 l I R315 I I C303 J R301 J R302 I R303 I c J R308 I G0 SCOPE ZAxis Focus lnt Control A10A3 ...

Page 173: ...w i i oc 2 P2 S 4 5 VERT Olif l P _ f I V E R T 01 11 1 Pt _T1ii 10 1 l 3 rz D FI PL A Tl I I II 2 t ORit Cli f l Pt ATE 1 J GEOM 1 IP ASTIG t JO Ti S l PARTIAL Rliii FE QSJ J E O A f Ot l A RE J c ot AP l TE O i A T I RSi F l JI WIT t ofrr 0 l FOR R fi I REI lCJii O aA J t JG 6 Raj Ot TO 01 P004t W 3 Ut JI_E OTI IEI l WI oi PkC I FI AJ I RI 1 I Q ll l Qlo IM S PC T 1 4WJ A 1 C C I TOtt t WI 1 1 J...

Page 174: ...1C82372C09 CAPACITOR 1UF80 20 25 21D83596E19 CAPACITOR 01UF80 20 3KV 30GA 027 CAPACITOR 27PF 10 3KV 21082187814 CAPACITOR tOOOPF 10 100 06 10621E85 RESISTOR0 100 1M 1 1 8 18083452F32 RESISTOR VARIABLE lOK 06 10621E17 RESISTOR 196K 1 1 8 06 10621E85 RESISTOR 8 1M 1 1 8 06 10621E85 RESISTOR 1M 1 1 8 6S124830 RESISTOR 2 2M 5 1 4 6S126A25 RESISTOR 100 5 1 6S124A01 RESISTOR 10 5 1 4 CGH 1 RESISTOR 20M ...

Page 175: ...eveling loop are the input VCA Voltage Controlled Attenuator the output level detector and the level comparator A level control voltage proportional to the desired output level is compared to the actual output level as determined by the level detector The result of the comparison steers the VCA maintaining the detected output level equal to the requested output level In the generate mode the contr...

Page 176: ...atorsignal from the widebandamp which isalreadyoffsetby 10 7 MHz with asignal frequencyfrom 10 7 MHz to 0 7 MHz or 34 3 MHz 17 10 For the 34 3 MHz mixing signal a single VCO is used Tuning of the VCO is with the OFFSET FINE TUNE line from the front panel Frequency modulation of the VCO is implemented by suming the OFFSET MOD signal with the tuning voltage 17 11 For the 0 7 MHz to 10 7 MHz mixing s...

Page 177: ...NVERTER P2 AT0 13 2 15 STEP ATTEN I I I I I r I I I I 4 SYNTH RF I I I I 16 HIILO BAND SEL I I M201 R AI L I I I I I 6 I AM MOD DC REF 207 AMPL VAEF I I I I I I 1 10 7 MHz IF J I ALC VOLT P1 13 LVL I CARRIER MOD LVL 21 I I I 01_Tf i 1 I T J I 1 2 I OFFSET COARSE TUNE 12 3 I 45 MHz OFFSET EN I 4 1 0 10 MHz OFFSET EN I Figure 17 1 RF Input Module A11 Block Diagram OFFSET osc I OFFSET FREQ 8521 19 ...

Page 178: ... L z RF IIJ OUT _ 1 B__________2 2 1 l _R j c _ooPF 1 E E E 7 E l ti E JGo J5 10 7 II Ol ll NATTM oTER C OI li OL I ZV 33V Gt 0 FII JE TUIJE AUDI 0 I NPUI 45 Mi L 5E EC T O IO MI h 5E EC T C OARSE TUNE J J Z A IIA 2 1 1 15 PI 1 WIOEBt 10 1 AP IF ER El 1 F 1 4 t 1 2 1 PI L 5 E Z E 14 14 E23 A II I I OE I I I i c uH Rl ll l PUT A l lo W TTMETE R L I PI c 3 E 3 1 2 JG I r SOOOPF 0 E 3 A I A 3 23 F l ...

Page 179: ... T1 0 c il ...

Page 180: ... CR1120 AT2 0 C107 C109D Power Meter Protection A11A1 ...

Page 181: ...K 1 1 ill R l 2 8 OFF SE T PWt ME TE R o z OK I 1RI 9 C 1 3 IOK I V 1 10 PF 17 X 1oP e s 7 Pl DTE LT o l JOTES I PA t TII L RE FIO IE lC E DE SI ll TIO o IS RE 5 0WI L FOR C OMPI ETE OcS 6 JI TIO J PRI FI NI T _ 11 1 AI Z OR RE FE RE jC E_ ORI WI j6 RE FE J TO P 01 POO 400io J 3 UNLiiSS OTI IE ISE SPEc iFI J tt llW s t e 1 1 1 1 o s PC T 1 4 w o TT f LL 11 J OUC TO R S ARE 1 l WI I LL VOL TI G E S...

Page 182: ...Wideband Amplifier A11 A2 I R2 I I L8 I R5 2oCR1 Qt V 0 ovR GR D 0 013 0 R62 G QR31 R24 0 R16 Offset Generator A11 A3 C41 l zl rilm a a a 0 U9 G Oc11 Ocs Oc7 ...

Page 183: ...11 Sl 2 04 0 C Z Z 7 tl t t9 C Z Z rr rl I 4E 5 8 T9G 10 I L 10 7 II OUT I L R c CAlntl c 244 I 10o MOO I EV I _ If I P LC 10 TA t e NOTE 5 PA I l O I Q E QE Jc E A 11Qit J AR E 45 Ch J i OQ JIP T ii t IE II T 0 F l _ W TI t 1 1 Z R 2 4 2 FOQ E F t t a RaFii CI o P 01 900 9 81 J 3 i liJLE Pe C F I 0 t t l 2 b fe Ott 5R T 1 4 WA rr A U t lO X TO lloaE lt l LIH VO qs oc 4 P1 l0u T 5 ARE n 105e OF T ...

Page 184: ... TI a c a I JJ Ul 0 0 1 T 0 CD I 3 j c CD 0 l 0 CD iil co Q iil 3 0 S a Q c 0 5 0 4 c N m 0 g H H o 0 Q g T r C o IH 9 H 0 c 0 o ...

Page 185: ...00 lOPF 10 200 l OPF 10 200 22PF 5 100 22PF 5 100 1000PF 10 100 CA103 CR104 CA105 CA107 CA108 CR109 CR110 CA1 11 CA1 12 CA113 CA11 4 K 101 K 102 l101 a 101 a 1o3 a 1o4 a 105 a 1os A 101 A 102 R 103 A 104 R 105 R 105 A 105 R 106 R 106 R 106 R 106 R 106 R 107 A 106 A 109 A 110 A 111 R 112 A 113 R 114 A 118 119 20 t 121 122 R 123 A 124 R 125 R 126 A 127 R 128 R 129 A 132 R 133 A 134 R 135 R 137 R 136...

Page 186: ...0 5 1 4 5 6K 5 1 4 Find No A268 A266 A266 R 269 R 271 R272 R 273 A 274 A 275 A 276 R277 R 278 A 279 A 280 R 281 u 201 u 202 u 203 u 204 U205 u 206 u 207 U208 U209 VR201 VR202 VA203 VR204 Find No 001 002 003 004 005 006 007 c 301 c 303 C304 c 305 C306 C307 C308 C309 c 310 c 311 C312 c 313 c 314 c 315 c 316 C317 c 318 c 318 c 318 c 319 c 320 c 321 c 322 c 323 c 324 c 325 c 326 Qty Req Oty Req AA AA ...

Page 187: ...OR 470 5 1 4 A 329 6S124A47 RESISTOR 820 5 1 4 A 330 6S124A51 RESISTOR 1 2K 5 1 4 R 332 6S124A41 RESISTOR 470 5 1 4 R 333 6S124A71 RESISTOR 8 2K 5 114 R 334 6S124A41 RESISTOR 470 5 1 4 R 335 SS124A57 RESISTOR 2 2K 5 1 4 A 336 SS124A57 RESISTOR 2 2K 5 1 4 R 337 6S124A57 RESISTOR 2 2K 5 1 4 R 338 6S124A73 RESISTOR 10K 5 1 4 R 339 6S124A49 RESISTOR 1K 5 1 4 R 340 6S124A18 RESISTOR 51 5 1 4 R 341 6S12...

Page 188: ...equency Counter Preamp has sufficient gain for 30 mV rms sensitivity and provides hystersis for noise immunity 18 6 Scope Vertical Preamp A calibrated gain of 50 or a variable gain from 5 to 50 is provided by the Vertical Preamp The gain is control led from the front panel For vertical scope positioning the DC bias point of the preamp is controlled by the front panel position control Deflection se...

Page 189: ...NCDR I l U12 15 INPUT BUFFERS us ADRS DECOD E EXT IN Cr 1 K34 41 I 1 2 1 I AC DC I I I I l INT SCOPE TORNGSW 6 1 3 i1 XT VERT POS VERT GAIN 1 VERT GAIN RTN I HORIZ IN J Ul 4 6 8 4 1 6 3 8 LATCHES DECODERS AND LEO DRVRS I U1 0 4 BIT LCH U9 ATTEN C ONT R39 44 KS 8 07 14 TP1 RANGE y DVM ATTEN BUFFER r DISPLAY LED S FUNCTIO N LED S MODULATIDN LED S U25 DVM FROM RNGSW U24 01 5 EXT FREOCNTR 5 86 92 93 9...

Page 190: ... of 2 RTL 4045A IZV 5v 4 4C J l sv 0 1 I ZV 6V IJD G I en t JO T I P C Q T A I QfLFE O IC K io OIO I C t J A T Ot l A 5 40 NtoJ R 0 0 PI 1t E OE l6lo I Do T OI J PRill W l Tiol lllo Z Z I OR EI I R i t IG E DiO t VJi t t ctS FE Q To o y o PCl0 2 1tV 3 U t Jl S 5 O T oo W 51 E O I IEO lt 1 1 5b C Q llo J O MS PC T 114 WJ T T 1 C A PA C TOR o c A lt U A l l DUO t 11 ti IN U 0 10 lt l 1 0 5 95 10 TI ...

Page 191: ... u B H Tr 1T tr _ta II o I I i J 55 5 lo t a J JG i CD GII i i i i f i ii o w 5 lliiD JJ Q 1 I I i 5 I p H i P6 6 o 1 1 5 I c o 0 ra I 1 11 2i s If o i m i g g t l fl UlAIA I I ec me t 11 60 D 111 rll HH p c c c c z Hm t 8 t 2 JIC J t g6gt t fj f i IJIJI I II I g o sa QIJI 6 r s s r s H m aS 5 Sao IHi c g _ ...

Page 192: ... K3 II K4 I 03 GLJL__j K2 Kl rcR2ll1 c Cl K6 II K7 II KB Figure 18 3 Front Panel Interface Module Parts Locator E J B p U20 I p U21 F U17 I CJ CJ 8 u I u l U14 IG p Ull I I I l U15 I u u u l ll ll I n l U4 J c J u ...

Page 193: ...K 5 1 4 lOK 5 1 4 10K 5 114 lOK 5 1 4 10K 5 114 tOK 5 1 4 10K 5 1 4 10K 5 1 4 10K S 1 4 tOK 5 1 4 l OK 5 114 10K 5 1 4 t OK 5 1 4 10K 5 1 4 tOK 5 1 4 10K 5 1 4 tOK 5 1 4 10K 5 1 4 tOK 5 1 4 tOK 5 1 4 10K 5 1 4 lOK 5 114 t OK 5 1 4 10K 5 114 4 7K 5 1 4 4 7K S 1 4 4 7K S 114 4 7K 5 1 4 Find No A 038 A 039 A 040 A 041 A 042 A 043 R 044 Ro4s A 046 R 047 A 048 R 049 R 050 A 051 R 052 R 053 A 054 A 055 ...

Page 194: ...ven draws high current As the oven warms up the current decreases reaching some low valve when the operating temperature has been reached A current detector illuminates the oven ready indicator when the current has decreased to the stabilized valve The indicator is continuously illuminated with the TCXO 19 3 Internal External Switchover With no signal at the external 10MHz input jack the internal ...

Page 195: ... U2 01 t VOLT E13 _ O VEN SUPPLY a REG ULATOR AND OVEN IND DRIVER Ul 2 1 INTIEXT SWITC H OVER E DRIVER SYNTH 10 0 MHz 7 Jl E XT 10 MHz OUT 7 J18 LEO ANODE 7 El l LEO CATHODE 7 E12 8521 21 Figure 19 1 Frequency Standard Module A13 Block Diagram ...

Page 196: ...r n 0 il a c 0 I J Q en c II 0 0 c c D ...

Page 197: ...8 R l 510 1 7 RIO 510 R 24 2 2 1 E 8 L IOMH STD E13 OVEN 5LIPPLY C RC R Z 3 10 4 I8V E l4 1104148 IO JD o I 1 ZW r 1 R l9 9V r r rzT I I I C 9 I Ql I T IOUF I M JE 700 I L I I Rll 7 700 Rl 2 G ZOO I I YE 3____ _j Cl7 00 1 ce 1 01 E 3 O MHL OUT 2 3 E l Rl 3 I R14 510 R ZO 2 10 Rl 7 G Zi R7C R 2 l 2 100 7 100 C R4 I Z5 e Q Z ill 1 1 1 9570 l J753A C Zv 11 1 lW R 7 Z1 K OVE 1 1 lD ADJ Rt8 Z ZK Ell El...

Page 198: ...CK SOLDER WIRE 16 CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR CAPACITOR DIOOEF 10 100 OIOOEF 10 100 DIODE ZENEAOO CONNECTOA PHONE JACK 01UF80 20 200 1UF80 20 25 27PF 5 500 01 UF80 20 200 1 0UF 20 35 01UF80 20 200 01UF80 20 200 01UF80 20 200 10UF 25V 1UF80 20 25 15UF 25V 15UF 25V 15UF...

Page 199: ...1 FIOO X Z PO IT O J 1 1 I 414 Z I t W I f VEi RT 1 1 I 127 5V 1 I I I IOQI Z 00 I RlS 1 V R Z Z I 5K I Z ZOO l ____ _ j I PO I T IO J F SET C OA Q i T J E PI 3 OK VR I 1W9G 05V H I 1 ___j 7 CX I S T C oJE Figure 20 1 Front Panel A14 Schematic Diagram Sheet 1 of 3 01 80304A42 I 12 V 1 I Kli SOARO Q W 0 I E BOA R OvJ I Kl SOAS O Ro t 2 KE YBO D QCN 3 KE SO A RO RON 4 l liL et0 6J O t Q UMl 1 0 I E ...

Page 200: ...cO CA OO GoJO itO 31 Qv1 L Lc O e T 1 001 _ CNE J e O C A T 1 001 29_ I 1 CN aJ 1 1 EO b t iOOE 0 E J LE O t WOO E I AG L LO C LE D f I V 5V Figure 20 1 Front Panel A14 Schematic Diagram Sheet 3 of 3 01 80304A42 PL DPL l JO P L DPL f J 1 1 JD TO lE A 11 J D TOWE S 1 D A B l D TO R t l 0 I J D i M 11 JD C Vv WD A tVI iND 5 5 B D 6 f J D SWP 1 IOM r h tt JD SW P 0 I MHz IIJD GEt J MO t J MTR 1 l D M...

Page 201: ... Figure 20 2 Display Board A14A1 Schematic Diagram 01 80304A43 ...

Page 202: ...r __ ...

Page 203: ... RF UJ2B CONNECTOR PHONE JACK N0 4 R 026 R 027 R 028 s 001 DUAL 118 114SHAFT S 002 NATURAL S 003 s 004 s 005 s 006 s 007 s 008 s 009 s 010 8011 s 012 s 014 s 015 s 016 01 80304A54 18 80346A15 06 CABLE ASSEMBLYE JACK 16PIN 101N END RESISTOR VAR DISPR SW 10K 1D 1 4 s 017 s 018 s 019 VR001 VR002 06 06 18 80346A16 18 80346A14 18 80346A14 06 RESISTOR RESISTOR RESISTOR PART OF F N 16 PART OF FIN 16 PAin...

Page 204: ...additional cooling for the system The blower as received from the factory will run whenever the unit is connected to the AC line However a jumper shorting out a thermostat in the blower assembly may be removed so that the fan only operates when high temperature conditions exist A schematic of the Blower Assembly is shown in figure 21 1 21 1 21 2 ...

Page 205: ...N CHASSIS BLOWER Find No 001 002 003 004 005 010 Qty Req 1 1 1 1 1 Part Number MU2A1 15 P00257N001 3450 87 239 477712 32 P06859A001 206429 1 JUMPER Nomenclature FAN CASE HOUSING THERMOSTAT Fll TEA ASSY GASKET BLOWER CONNECTOR Part Value 120 VAG M OTOR ...

Page 206: ...r this application should be capable of reading and writing ASCII and control characters from and to the bus in accordance with the 488 specification Application software is the user s responsibility as dictated by the controller selected although interface and application assistance is available from Motorola 22 5 The IEEE option package consists of an IEEE Interface module A8 with a rear panel c...

Page 207: ...layable level 1 40 to 11 dBm in 0 1 dBm steps Note 3 Note 4 Of1set Oscillator Adjust Duplex Generator Frequency Settable from fa to fo 10 MHz in 1 KHz steps Switch placed in 0 1 0 MHz position Nole 3 Scope Vertical Step Attenuator 0 0 1 0 1 1 10 volts Horizontal Scope Sweep 1 10 100 milliseconds 1 10 100 microseconds External lnpu1 Power Meier Frequency Error Deviation or AM or External Frequency ...

Page 208: ...ve released the line Thus the slowest device on the bus determines the transfer rate When the NDAC line goes false the source devices sets the DAV false which in turn causes the acceptor devices to set the NDAC line true When the acceptor devices have completed processing the data byte just received they allow the NRFD line to go to the false state completing the handshake As the data transfer con...

Page 209: ...r Wattmeter 22 17 The data field is comprised of five sub fields as shown n n E n DATA SIGN EXPONENT EXPONENT MAGNITUDE DATA VALUE EXPONENT SIGN Data limits and accompanying units are given in table 22 3 The data field is optional or not allowed for certain commands 22 18 Data Sign The data sign is a single or character indicating the sign of the data value The sign may be omitted for positive val...

Page 210: ...evel 3 GEN 5 Tone Mem FM 6 Freq Counter AM 7 DVM WE 1 9 D Wattmeter element number 1 2 5W 2 5W 3 10W 4 25W I 8 Ext Wattmeter MS 0 99 9 kHz FM c Code Synthesizer 3 GEN 9 IF AM Mod l evel 10 Scope AC 11 Scope DC OSCILLOSCOPE 12 Terminal OH 0 6 t Horizontal Sweep Select CF 0 5 c Function Select 1 0 1 micro sec div 5 50W 6 100W 7 250W 8 500 w 9 1000W WI 0 132 0 WATTS 0 Internal Wattmeter 4 PWA 0 FM 1 ...

Page 211: ...quire the designated reading These states are listed in table 22 3 The measurement however is not made until a trigger command T has been sent from the controller The trigger command causes the measurement to be made and the data held for transmission to the controller Then when the controller addresses the analyzer as a talker the data is output to the controller A reading can be retaken for any ...

Page 212: ... are sent The down cursor key causes a bus service request to be generated regardless of the operating mode Thus this key could be used to halt an automatic test sequence 22 39 The remaining pushbuttons are defined prior to entering the terminal mode with the use of the keyboard control commands listed in table 22 3 Each key is assigned an ASCI I character by following the Kn command prefix with t...

Page 213: ... 39 G 01000111 28 40 H 01001000 29 41 I 01001001 2A 42 J 01001010 28 43 K 01001011 2C 44 L 01001100 20 45 M 01001101 2E 46 N 01001110 2F 47 0 01001111 30 48 p 01010000 31 49 Q 01010001 32 50 R 01010010 33 51 s 01010011 34 52 T 01010100 35 53 u 01010101 36 54 v 01010110 37 55 w 01010111 38 56 X 01011000 39 57 y 01011001 3A 58 z 01011010 38 59 01011011 3C 60 01011100 3D 61 1 01011101 3E 62 01011110 ...

Page 214: ...er must then be programmed to recognize the error message and to decodethe error number A successful data transmission wilt send back an error code 00 when addressed as a talker The controller should be programmed to ignore error 00 and to display any other error to the operator Of course if a valid output command followed by the trigger command was sent the talker address will result in the reque...

Page 215: ...3MS3 CFAA1 5E3AB300MM5MS3 CFAS4AA1E3AB2E3MM4MS3 CFAS5AA1E3AB2E3AW1 AX1AY1AZ1MM4MS3 FM DPL Code 131 3 kHz FM FM DPL Code 313 5 kHz FM AM PL 60 5 Hz 30 AM FM 2000 Hz 3 kHz FM FM 2000 Hz 3 kHz FM FM A 1500 Hz B 300 Hz 3 kHz FM FM Sequence4 A 1 kHz B 2kHz 3kHzFM FM Sequence 5 A 1 kHz B 2 kHz 1 sec on off times 3 kHz FM 22 49 Modulation The system analyzer is capable of modulating with three simultaneo...

Page 216: ...ram is then simply a duplication of the manual steps with control commands substituted 22 54 R2002A Analyzer Configuration The R2002A analyzer differs in configuration from the standard R2001A in the following manner A11 Module The manual attenuator AT1 is replaced with a programmable version P N RTL 4064A A new ribbon cable assembly connected to the A8 module provides control signals for the atte...

Page 217: ...ition and ac power is applied to the R 2001A the RTP 1002A Battery Pack draws de cur rent from the R 2001A to activate the charging circuit The charging circuit delivers approximately 750 rnA of current until the battery voltage reaches 14 volts As the battery voltage reaches 14 volts the current drops to ap proximately 25 rnA and the high charge indicator LED extinguishes 2 3 When the R 2001A sys...

Page 218: ... FOR 14 1 V USING A DIGITAL VOLTMETER ACROSS THE BATTERY TERMINALS ll S H 5 0 COMPONENT SIDE il 80 CEPS 29556 0 SOLDER SIDE tl BD CEPS 29 5 57 0 OL CEPS 29558 0 SHONN FROM COMPONENT SIDE RTP 1002A Battery Pack Schematic Diagram Circuit BoardDetail Parts Location Detail and Parts List Motorola No PEPS 19554 0 Sheetl of2 312418 SK 2 ...

Page 219: ...1 43 865080 1 80304A73 30 10310A26 29 859118 1 80304A74 10 134301 29 859118 3 120938 4 7667 64 80342A54 1 80303A91 15 10811A08 9 83741F01 42 80340A90 2 2BBB 2 7005 4 7666 14 80340A91 75 82566801 3 80342A46 3 136774 3 132840 4 7667 42 850925 BATIERY CASE Includes CASE battery SCREW captive 6 32 21 32 2 used SPRING clip COVER battery case CIRCUIT BOARD ASSEMBLY includes CLIP fuseholder 2 used STANDO...

Page 220: ...0 0 s s c z 0 0 z C 1 C 1 m s z r N m D 0 00 00 0 6 ...

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