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3151 And 3151A User Manual

Getting Started 1-3

Besides its normal continuous mode, the Model 3151/3151A offers a
variety of interrupted modes. The output waveform may be gated,
triggered, or may generate a counted burst of waveforms. A built-in
trigger generator with a programmable period can replace an
external trigger.

The Model 3151/3151A generates arbitrary waveforms with 12 bits of
resolution. There are nine standard waveforms which are memory-
resident. Other waveforms may be generated, either manually or
downloaded from the controller to the instrument using shared
memory or standard data bus transfer. Waveforms may also be
generated using the WaveCAD program.

The Model 3151A waveform generator is a digital instrument.
Besides its standard waveforms, any waveform it generates must first
be loaded into the arbitrary waveform memory. The arbitrary
waveform memory is a bank of 8-bit words. Each word represents a
point on the waveform. Each word has a horizontal address that can
range from 0 to 523288 (64536 for the Model 3151) and a vertical
address that can range from -2047 to +2048 (12 bits). Using a high
speed clocking circuit, the digital contents of the arbitrary waveform
memory are extracted and routed to the D/A converter. The D/A
converts the digital data to an analog signal, and the output amplifier
completes the task by amplifying or attenuating the signal at the
output connector.

The Model 3151/3151A is fully programmable using SCPI commands
and syntax. There are two ways to program the Model 3151/3151A,
the first being low level programming of each individual parameter.
The second alternative is to use the VXIplug&play driver for high
level programming. The VXIplug&play driver simulates a mechanical
front panel with the necessary push buttons, displays and dials to
operate the Model 3151/3151A as a bench-top instrument. The
Model 3151/3151A will not operate without being programmed.
Therefore, it is recommended that the user become familiar with its
basic features, functions and programming concepts as described in
this and the following chapters.

Options

A number of options are offered with the Model 3151/3151A.
Compare the option number with the number that is printed on the
instrument to verify which of the options is installed in your
instrument. Note that all Model 3151/3151A options are installed in
the factory. Contact your nearest Racal representative if the number
printed on the case does not reflect the correct version ordered. The
list of available Model 3151/3151A options is given below:

•

407719-002 - Model 3151A - 100MS/s Waveform Generator,

w/512k RAM

•

407719-012 - Model 3151A - 100MS/s Waveform Generator,

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Содержание 3151

Страница 1: ...k System GmbH Technologiepark Bergisch Gladbach Friedrich Ebert Strasse D 51429 Bergisch Gladbach Germany Tel 49 2204 8442 00 FAX 49 2204 8442 19 Racal Australia Pty Ltd 3 Powells Road Brookvale NSW 2...

Страница 2: ...t for service or calibration Call your nearest Racal Instruments support facility A list is located on the last page of this manual If you are unsure where to call contact Racal Instruments Inc Custom...

Страница 3: ...defeat the protective feature of the third conductor in the power cord Maintenance and calibration procedures sometimes call for operation of the unit with power applied and protective covers removed...

Страница 4: ...This page was left intentionally blank...

Страница 5: ...n 1 5 Input and Output Connectors 1 5 Main Output 1 5 SYNC Output 1 6 External Clock Input 1 6 Reference Clock Output 1 6 Trigger Input 1 6 Operating Modes 1 7 Continuous Mode 1 7 Triggered Mode 1 7 B...

Страница 6: ...To Do Now 3 2 Using the APPLy Command 3 3 Output Configuration Commands 3 8 Selecting an Output Function Type 3 8 Selecting a Standard Function Shape 3 8 Changing the Frequency and Sample Clock 3 9 S...

Страница 7: ...mory 3 28 Sequence 3 30 Generating Sequenced Waveforms 3 31 What Are Sequenced Waveforms 3 31 Sequence Commands 3 33 High Speed Sequence Downloads 3151A Only 3 35 Triggered Sequence Advance 3 37 Trigg...

Страница 8: ...13 System Related Command Summary 4 14 IEEE STD 488 2 Common Commands and Queries 4 14 The SCPI Status Registers 4 16 The Status Byte Register STB 4 18 Reading the Status Byte Register 4 18 Clearing t...

Страница 9: ...od 5 14 Recommended Test Equipment 5 14 Adjustment Procedures 5 14 Pulse Response Adjustment 5 15 Amplitude Adjustment 5 16 Offset Adjustment 5 17 Troubleshooting 5 18 Recommended Test Equipment 5 18...

Страница 10: ...3151 And 3151A User Manual vi Product Support 7 1 Reshipment Instructions 7 1 Support Offices 7 2 Appendix A Specifications A 1...

Страница 11: ...Address 2 5 Figure 3 1 Definite Length Arbitrary Block Data Format 3 27 Figure 3 2 12 Bit Waveform Data Format 3 28 Figure 3 3 Sin x x Waveform Loaded Into Segment 1 3 31 Figure 3 4 Sine Waveform Loa...

Страница 12: ...nd VXI Interface Checkout Procedure 5 20 Table 5 2 Output Amplifier and Amplitude Control Checkout Procedure 5 21 Table 5 3 Clock Synthesizer Checkout Procedure 5 22 Table 5 4 Sequence Generator Check...

Страница 13: ...ze module Waveform Generator It is a high performance waveform generator that combines two powerful instruments in one small package a function generator and an arbitrary waveform generator The instru...

Страница 14: ...3151 And 3151A User Manual Getting Started 1 2 32 Vp p into an open circuit and 10 mV to 16V into 50 Figure 1 1 3151 and 3151A Front Panel...

Страница 15: ...D A converter The D A converts the digital data to an analog signal and the output amplifier completes the task by amplifying or attenuating the signal at the output connector The Model 3151 3151A is...

Страница 16: ...able 1ppm option denotes an improved accuracy and stability of the 10 MHz reference clock Normally VXI modules receive their clock reference from VXIbus CLK10 There are applications that require compl...

Страница 17: ...d within a temperature range of 20o C to 30o C Specifications outside this range are degraded by 0 1 per o C Functional Description A detailed functional description is given in the following paragrap...

Страница 18: ...hat were assigned to the active segment is 1000 the output frequency will be 10 kHz 10 MHz divided by the number of points The external clock input accepts fixed level TTL signals within the range of...

Страница 19: ...mmable trigger generator The trigger signal whether it comes from the front panel or from the VXIbus has to pass through some circuits These circuits cause a small delay known as system delay System d...

Страница 20: ...ar wave square wave pulse ramp sinc sine x x pulse gaussian pulse exponential pulse and DC There are certain parameters that are associated with each standard function These parameters can be programm...

Страница 21: ...and the repeater will loop on this segment as many times as selected When in sequenced mode there is no loss of time between linked or looped segments Figure 1 5 shows an example of a sequenced wavef...

Страница 22: ...r and the rest of the instruments configured as slaves the instruments are phase locked to the start phase on the master module The slave modules may be configured to have phase offsets within the ran...

Страница 23: ...del 3151 3151A has no controls on the front panel Instrument functions parameters and modes can only be accessed through VXIbus commands There are a number of ways to talk to the instrument They all r...

Страница 24: ...3151 And 3151A User Manual Getting Started 1 12 This page was left intentionally blank...

Страница 25: ...ertified against the packing slip to determine that the shipment is complete Safety Precautions The following safety precautions should be observed before using this product and associated computer Al...

Страница 26: ...ed at all times during operation Carefully read the Safety Precautions instructions that are supplied with your computer Before performing any maintenance disconnect the line cord and all test cables...

Страница 27: ...t materials 2 Be sure the carton is well sealed with strong tape or metal straps 3 Mark the carton with the model and serial number If it is to be shipped show sending and return address on two sides...

Страница 28: ...Resource Manager to dynamically configure the module logical address To change the Model 3151 3151A s logical address use the 8 position DIP switch accessible from the top side of the module near the...

Страница 29: ...3151 And 3151A User Manual Configuring The Instrument 2 5 Figure 2 1 Set The Logical Address...

Страница 30: ...mainframe it should be gently rocked back and forth to seat the connectors into the backplane receptacle The ejectors will be at right angles to the front panel when the instrument is properly seated...

Страница 31: ...loss due to an impedance mismatch Proper termination is also required for an accurate amplitude level at the main output connector Use 50 cables and terminate the main and SYNC cables with terminating...

Страница 32: ...ng low level code to operate the Model 3151 3151A follow the instructions in this chapter to understand the meaning and response that each command generates Examples contained in the following paragra...

Страница 33: ...orm using WaveCAD Turn the main output on OUTPut ON Turn the SYNC output on if required OUTPut SYNC ON If the above commands are executed correctly a square waveform will be seen on your oscilloscope...

Страница 34: ...cy amplitude offset phase power programs the generator to output a sine waveform with frequency amplitude offset start phase and power parameters Parameters are not optional if the above APPLy command...

Страница 35: ...generator to output a sine x x waveform with frequency amplitude offset and number of cycles parameters The default settings for these functions are 1 MHz 5 Vp p 0 V and 10 The command APPLy EXPonenti...

Страница 36: ...associated with the currently selected function shape and returns a string of values depending on the parameters available for the selected function shape For example if the generator is programmed to...

Страница 37: ...And 3151A User Manual Using The Instrument 3 7 OUTPut ON Turn the SYNC output on if required OUTPut SYNC ON If the above commands are executed correctly a square waveform will be seen on your oscillos...

Страница 38: ...rrently selected by the TRAC SEL command When SEQuence is selected the generator outputs the sequence that is programmed using the SEQ DEF command The query FUNCtion MODE queries the output function t...

Страница 39: ...alue in hertz The command FREQuency RASTer frequency MINimum MAXimum sets the sample clock frequency for the user and sequenced functions MIN selects the lowest frequency allowed for the currently act...

Страница 40: ...operate in phase synchronization mode The query FREQuency RASTer SOURce queries the sampe clock source setting and returns EXT INT or ECLT Programming the Output Amplitude and Offset Use the following...

Страница 41: ...tly active function 20 MHz has a Gaussian response and the 25 MHz and the 50 MHz filters have an Elliptical response Note that the filters cannot be changed if the generator is set to output sine wave...

Страница 42: ...be routed onto the VXI backplane Other Model 3151 3151As may be set up to receive this sample clock using the command FREQ RAST SOURCE ECLTRG0 See Selecting the Sample Clock Source ECLTRG1 should not...

Страница 43: ...ates a trigger signal at intervals set by the internal trigger generator EXTernal Generates a trigger signal every time a trigger is applied to the front panel TRIG IN connector The query OUTPut TRIGg...

Страница 44: ...f the SYNC OUTPUT and returns 0 OFF or 1 ON Assigning the Source For The SYNC Output The SYNC output when enabled can be triggered by signals coming from a number of sources Use the following command...

Страница 45: ...MHz The query OUTPut SYNC SOURce queries the validating signal source for the SYNC output and returns BIT LCOM SSYN or HCL Selecting the SYNC Position The SYNC output can be programmed to output the S...

Страница 46: ...ULSe function are described Use the same procedure to program parameters for the SINe TRIangle RAMP SQUare SINC GAUSsian EXPonential and DC waveforms The number of points used to define each Standard...

Страница 47: ...of SINC The standard waveform will be available at the output connector only after the FUNC MODE FIX command has been executed Select the FUNC SHAP PULS command Parameters for the PULSe function shape...

Страница 48: ...is measured between the two turning points of the first transition The query PULSe TRANsition queries the pulse rise time setting and returns a value in percent The command PULSe WIDTh value sets the...

Страница 49: ...ignal is used to stimulate the TRIG input The generator is sensitive to either the rising edge or the falling edge Each time a transition at the trigger input occurs the Model 3151 3151A generates one...

Страница 50: ...y TRIGger GATE queries the gate state and returns 0 OFF or 1 ON Burst Mode Burst mode is very similar to Triggered mode with the exception that only one trigger signal is needed to generate a counted...

Страница 51: ...IGger COUNt queries the burst count and returns an integer Selecting the Trigger Source When an external source is not available the operator has the option to use either the built in trigger generato...

Страница 52: ...o effect in Gated mode To use the internal trigger generator place the instrument in Triggerd mode but select the internal trigger generator as the trigger source Then use the following command to pro...

Страница 53: ...ansitions will trigger the Model 3151 3151A when the NEG option is selected POS is the default slope The query TRIGger SLOPe queries the trigger slope and returns POS or NEG Using the Soft Trigger The...

Страница 54: ...e from address 0 to the last address The rate at which each sample is replayed is defined by the sample clock rate parameter The Model 3151 3151A provides programmable sample clock rates from 100 mHz...

Страница 55: ...ents If a mistake is made and removal of one or more segments from the active directory is needed use the following command TRACe DELete n where n is the number of the segment to be removed from memor...

Страница 56: ...he data it receives Select the active segment using the following command TRACe SELect 8 The next step is to transfer data to the active segment Data is loaded into the Model 3151 3151A using high spe...

Страница 57: ...f Definite Length Arbitrary Block Data Format is demonstrated in Figure 3 1 Figure 3 1 Definite Length Arbitrary Block Data Format 6 bits of data are sent to the Model 3151 3151A although only 12 bits...

Страница 58: ...ble binary block 2002 is not a multiple of 4 therefore the generator will automatically adjust the size to 1002 points and generate an error message Reversing Byte Order Binary data is sent to the Mod...

Страница 59: ...0 Controller need only select the base address for both write and read cycles Shared Memory commands are explained below To write to or read from a segment the user must first define the segment usin...

Страница 60: ...emory transfers may start 3 Slot 0 sends command SMEM STATE OFF once data transfer is complete The OPC Response is set to 1 when the Model 3151 3151A has transferred memory access from the internal CP...

Страница 61: ...ed memory methods to load waveforms into memory Information on how to partition the memory and load waveforms is given in the section entitled Generating Arbitrary Waveforms An example of how sequence...

Страница 62: ...Into Segment 2 Figure 3 5 Pulse Waveform Loaded Into Segment 3 Figure 3 6 shows a sequence of waveforms that were stored in three different memory segments Note that segment number 2 is generated firs...

Страница 63: ...output will look like a continuous waveform If only one step is specified and the Model 3151 3151A is placed in Triggered mode the output will behave as it would in Burst mode where the repeat number...

Страница 64: ...mmediate effect on the output waveform or function The sequence generator goes through the steps in descending order In the continuous operating mode the sequence is repeated automatically after the l...

Страница 65: ...commands by packing all relevent data into a IEEE STD 488 2 Definite Length Arbitrary Block Data Format packet The format of the command is SEQuence DATA header binary data and the header structure is...

Страница 66: ...ginning and the mid byte and LSB Least Significant Byte are shifted left by one byte Figure 3 7 Fast Sequence Download A simple example using the sequence command is to generate a 1 step sequence with...

Страница 67: ...sequenced mode In Triggered Sequence Advance mode the Model 3151 3151A idles between steps until a valid trigger signal is sensed The trigger source can be selected from a number of options An extern...

Страница 68: ...of waveforms using the commands that were explained before Second place the instrument in Triggered mode using the INIT CONT OFF command To place the Model 3151 3151A in Triggered Sequence Advance mo...

Страница 69: ...ust not drive ECLTRG0 1 while phase synchronization is enabled There are phase synchronization commands that can tightly control phase offsets between two or more Model 3151 3151As These commands are...

Страница 70: ...ying to synchronize modules that are programmed to output waveforms with few memory points a 1 count error between modules may be seen To remove this error use the following command PHASe LOCK NULL CA...

Страница 71: ...waveform The frequency of the carrier wave is programmed in points Select from 10 to 500 points The default setting for the carrier frequency is 100 points The frequency of the carrier wave can be co...

Страница 72: ...d with 350 Too many errors No additional errors are stored until all errors have been removed from the queue The error queue is cleared only when power is cycled off or after the execution of a CLS co...

Страница 73: ...he RST and RES commands have no effect on status registers VXIbus states VXI address or SCPI command set The query OPT returns 1 for the 3151A and the 3151 002 version or 0 for the 3151 001 version qu...

Страница 74: ...3151 And 3151A User Manual Using The Instrument 3 44 This page was left intentionally blank...

Страница 75: ...rogram the instrument over the MXI interface bus are defined by the SCPI 1993 0 standard The SCPI standard defines a common language protocol It goes one step further than IEEE STD 488 2 and defines a...

Страница 76: ...and lower case letters The upper case letters indicate the abbreviated spelling for the command For shorter program lines send the abbreviated form For better program readability send the long form F...

Страница 77: ...hree commands TRIG SOUR ADV INT TRIG BURS ON TRIG INT RATE 5e 3 Use the colon and semicolon to link commands from different subsystems For example in the following command string an error is generated...

Страница 78: ...STD 488 2 common queries generate responses which are common to all instruments that are connected to the GPIB interface SCPI Command Terminator A command string sent to the function generator must t...

Страница 79: ...The following command is an example of a command that uses a numeric parameter VOLT AMPL amplitude Discrete Parameters Discrete parameters are used to program settings that have a limited number of v...

Страница 80: ...installed the Model 3151 3151A can accept binary blocks up to 1046576 bytes The following command uses an arbitrary block parameter that is loaded as binary data TRAC DATA 564000 binary_block SCPI Com...

Страница 81: ...PHAS POW Not confirmed TRIangle FREQ AMPL OFFS PHAS POW Not confirmed SQUare FREQ AMPL OFFS DCYC Not confirmed PULSe FREQ AMPL OFFS DEL WIDT LEAD TRA Not confirmed RAMP FREQ AMPL OFFS DEL LEAD TRA Not...

Страница 82: ...nly No 3151 support DEFine 1 1 4096 1 1 4096 1 1 1E6 Not Confirmed Link segment repeat DELete Not Confirmed NAME 1 1 4096 Not Confirmed ALL Not Confirmed RESet Confirmed SYSTem Confirmed ERRor Confirm...

Страница 83: ...ds and Parameters Low Limit High Limit Default SOURce APPLy SINusoid frequency amplitude offset phase power APPLy TRIangle frequency amplitude offset phase power APPLy SQUare frequency amplitude offse...

Страница 84: ...7 19 7 19 0 VOLTage OFFSet OUTPut FILTer FREQuency 20MHz 25MHz 50MHz 20MHz FILTer FREQuency FILTer OFF ON OFF FILTer STATe OFF ON OFF STATe SOURce SYNC SOURce BIT LCOMplete SSYNc HCLock BIT SYNC POSit...

Страница 85: ...e SINusoid POWer value 1 9 1 SINusoid POWer TRIangle PHASe value 0 360 0 TRIangle PHASe TRIangle POWer value 1 9 1 TRIangle POWer SQUare DCYCle value 1 99 50 SQUare DCYCle PULSe DELay value 0 99 9 10...

Страница 86: ...in bold Command and Parameters TRACe header binary_block TRACe DEFine segment_number length TRACe DELete segment_number TRACe DELete ALL TRACe SELect segment_number FORMat BORDer NORMal SWAPped FORMa...

Страница 87: ...ative POS TRIGger SOURce ADVance EXTernal INTernal TTLTrg n EXT TRIGger TIMer value 60e 6 1000 100e 6 TRIGger IMMediate TRG Inter Module Phase Synchronization Command Summary Phase Synchronization com...

Страница 88: ...queries which all compatible devices must use This avoids situations where devices from various manufacturers use different sets of commands to enable functions and report status The IEEE STD 488 2 tr...

Страница 89: ...ng with service requests and multiple polls to the instrument However both the system bus and the controller handshake are in a temporary hold off state while the controller is waiting to read the OPC...

Страница 90: ...nstrument conditions Figure 4 1 shows the SCPI status system An Event Register is a read only register that reports defined conditions within the generator Bits in an event register are latched When a...

Страница 91: ...6 MSS ESBMAV 3 2 1 0 7 5 4 3 2 1 0 Service Request Enable Register SRE value SRE Status Byte Register read by STB read by Serial Port Output Queue Standard Event Status Enable Register ESE value ESE...

Страница 92: ...device and then wait for MAV to become true If an application program begins a read operation of the output queue without first checking for MAV all system bus activity is held up until the device re...

Страница 93: ...reasons for the generator to issue a service request by altering the contents of the Service Request Enable Register The Service Request Enable Register is read with the SRE common query The response...

Страница 94: ...is bit operation is disabled on the Model 3151 3151A Bit 2 Query Error This bit indicates that an attempt is being made to read data from the output queue when no output is either present or pending B...

Страница 95: ...Register is cleared by setting ESE0 Summary of ESE messages is given in the following ESE0 No mask Clears all bits in the register ESE1 ESB on Operation Complete ESE2 ESB on Request Control ESE4 ESB o...

Страница 96: ...different than allowed 108 Parameter not allowed More parameters were received than expected for the header 109 Missing parameter Too few parameters were received for the command One or more paramete...

Страница 97: ...errors are stored until the errors from the queue are removed The error queue is cleared when power has been shut off or after a CLS command has been executed 410 Query INTERRUPTED A command was rece...

Страница 98: ...3151 And 3151A User Manual SCPI Command Reference 4 24 This page was left intentionally blank...

Страница 99: ...ecautions are not observed CAUTION ALWAYS PERFORM DISASSEMBLY REPAIR AND CLEANING AT A STATIC SAFE WORKSTATION Disassembly Instructions If it is necessary to troubleshoot the instrument or replace a c...

Страница 100: ...containers only at a properly grounded work station 3 Remove a device by grasping the body do not touch the pins 4 Any printed circuit board into which the device is to be inserted must also be ground...

Страница 101: ...rly tinned for best heat transfer to the solder joint A higher wattage soldering iron may separate the circuit from the base material 2 Keep the soldering iron in contact with the PC board for a minim...

Страница 102: ...generator If self test failures have been encountered the instrument first needs to be serviced and the source of failure removed Instructions on how to perform self test is given later in this chapte...

Страница 103: ...ndwidth 1 kHz resolution Pulse Function Generator 20 MHz 10 ns pulsewidth Oscilloscope 2 channels 400 MHz analog bandwidth Feedthrough termination 50 1 BNC Cables 1 meter long 50 impedence 20dB feedth...

Страница 104: ...0 VOLT 1 2 Set the counter to frequency measurement 3 Connect the Model 3151 3151A output to the counter s input Change the frequency setting as required for the test and verify the reading on the cou...

Страница 105: ...nfigure the Model 3151 3151A as follows Function Sine Frequency 1 000 kHz Amplitude 15 V Remote Commands RES OUTP ON FUNC SHAP SIN FREQ 1000 VOLT 15 2 Set the DMM to ACV measurements RMS 3 Connect the...

Страница 106: ...N FUNC SIN FREQ 1e6 VOLT 1 61 VOLT OFFS 5 2 Set the DMM to DCV measurements 3 Connect the Model 3151 3151A output to the DMM input Terminate the output with a 50 feedthrough termination Set the Model...

Страница 107: ...e the Model 3151 3151A as follows Function Square wave Frequency 1 000 MHz Amplitude 10 V Remote Commands RES OUTP ON FUNC SHAP SQU FREQ 10e6 VOLT 10 2 Connect the Model 3151 3151A output to the oscil...

Страница 108: ...on analyzer input 2 Set the distortion analyzer to distortion measurements set the Model 3151 frequency setting and verify the distortion reading as below 3 Configure the Model 3151 as follows Functio...

Страница 109: ...Model 3151 3151A as follows Function Sine wave Frequency 1 000 KHz Amplitude 6 V Remote Commands RES OUTP ON FREQ 10e3 VOLT 6 2 Connect the Model 3151 3151A OUTPUT to the oscilloscope set the oscillo...

Страница 110: ...Configure the Model 3151 3151A as follows Function Sine wave Frequency 1 000 MHz Operating Mode Triggered Remote Commands RES OUTP ON FREQ 1e6 INIT CONT OFF 2 Set the external pulse function generator...

Страница 111: ...equency 1 000 kHz Operating Mode Burst Remote Commands RES OUTP ON FREQ 1e3 INIT CONT OFF TRIG BURST STAT ON TRIG COUN 10 TRIG SOUR ADV EXT 2 Set the oscilloscope and verify that the Model 3151 3151A...

Страница 112: ...ting calibration and performance checking is listed at the beginning of this chapter in the section entitled Recommend Test Equipment Test instruments other than those listed may be used only if their...

Страница 113: ...uator 1 Configure the Model 3151 3151A as follows Function Square Frequency 1 MHz Amplitude 10 V Remote Commands RES OUTP ON FUNC SHAP SQU FREQ 10e6 VOLT 10 2 Connect the Model 3151 3151A output throu...

Страница 114: ...Remote Commands RES OUTP ON FREQ 1E3 VOLT 16 2 Connect the Model 3151 3151A output to the DMM input through the 50 feedthrough termination Set the DMM to ACV measurements and 10 V range 3 Adjust R84...

Страница 115: ...FREQ 1e6 VOLT 1 61 VOLT OFFS 7 19 2 Connect the Model 3151 3151A output to the DMM input through the 50 feedthrough termination Set the DMM to DCV measurements and 10 V range Record this reading 3 Ch...

Страница 116: ...ced feature of the Model 3151 3151A is its self test capability This feature helps in reducing troubleshooting time of faulty circuits to the minimum If the instrument fails its self test procedure it...

Страница 117: ...es are supplied to the Model 3151 3151A through the backplane In case of a dead short between one of the supplies to the common ground disconnect the entire supply section from the remaining circuitry...

Страница 118: ...circuits Check the various components associated with the CPU circuitry its clocks and the components associated with the VXI ASIC using the information given in Table 5 1 Table 5 1 CPU and VXI Inter...

Страница 119: ...with the checkout procedure given in Table 5 2 Before starting the following procedure reset the Model 3151 3151A to the factory defaults using the RST command Then send the command OUTPUT ON Table 5...

Страница 120: ...u start with the following procedure reset the 3151 to the factory default using the RST command Table 5 3 Clock Synthesizer Checkout Procedure Step Test Point Expected Result 1 U15 pin 3 100 MHz ECL...

Страница 121: ...ep to repeat once Use the following commands after loading the waveforms Remote Commands FUNC MODE SEQ SEQ DEF 1 1 SEQ DEF 2 1 SEQ DEF 3 1 OUTP ON Table 5 4 Sequence Generator Checkout Procedure Step...

Страница 122: ...A is made of two boards If the engine board is removed from the main board reinstall it before continuing with the following checks The following circuit checks are performed on the engine board only...

Страница 123: ...ns 13 21 TTL Level 1 MHz 8 U31 U32 pins 13 15 TTL Level Positive going pulses 20 ns width 1 MHz 9 U35 U36 pins 13 15 TTL Level Positive going pulses 20 ns width 1 MHz 10 U37 U38 U58 U60 pin 9 TTL Leve...

Страница 124: ...5 U26 pin 11 TTL Level Negative going pulses 1 Fs width 200 kHz 6 U24 pin 1 ECL Level Negative going pulses 1 Fs width 200 kHz Change the Model 3151 3151A setting to delayed trigger and change delay t...

Страница 125: ...eries Test Receiver Interfaces Each harness documentation consists of an assembly drawing parts list system wire list and wire list 407433 Virginia Panel Inc Series VP90 Interface Harness 407434 TTI T...

Страница 126: ...3151 And 3151A User Manual Optional Harness Assemblies 6 2 This page was left intentionally blank...

Страница 127: ...3151 And 3151A User Manual Optional Harness Assemblies 6 3...

Страница 128: ...OO 2 602201 807 PATCHCORD MINICOAX 50OHM 60 5 w J1OO 3 602210 CON CXL PLG001C 000S 5 OUTPUT SYNC OUT 4 TRIG IN CLOCK IN 5 10 MHz REF OUTPUT 6 610777 TIE CA LKG 062 075 A R 7 910541 POLYURETHANE CONF C...

Страница 129: ...SYSTEM WIRE LIST This system wirelist serves as a template for incorporating this harness assembly into the overall system wirelist It does not in any way affect the fabrication of this harness assemb...

Страница 130: ...602201 807 54 CLOCK IN 5 J100 5 602201 008 REF OUTPUT 602210 COAX 602201 807 54 REF OUTPUT 6 J100 6 NO CONNECT 7 J100 7 NO CONNECT 8 J100 8 NO CONNECT 9 J100 9 NO CONNECT 10 J100 10 NO CONNECT 11 J100...

Страница 131: ...3151 And 3151A User Manual Optional Harness Assemblies 6 7...

Страница 132: ...S LIST ITEM REV PART NO DESCRIPTION QTY REEERENCE 1 407262 CABLE ASSY COAX BNC TTI 5 2 610777 TIE CA LKG 062 075 A R 3 RACAL Instruments Inc 4 Goodyear St Irvine CA 92718 DOCUMENT TITLE SIZE CODE NO D...

Страница 133: ...yy TRIG IN CABLE 407434 BLK AAx PN 04 J103 Uxx SLOTyy CLOCK IN CABLE 407434 BLK AAx PN 05 J104 Uxx SLOTyy REF OUT CABLE 407434 This system wirelist serves as a template for incorporating this harness...

Страница 134: ...E 407262 40 OUTPUT 2 J101 1 SYNC OUT CABLE 407262 40 SYNC OUT 3 J102 1 TRIGIN CABLE 407262 40 TRIG IN 4 J103 1 CLOCK IN CABLE 407262 40 CLOCK IN 5 J104 1 REF OUT CABLE 407262 40 REF OUTPUT RACAL Instr...

Страница 135: ...rtment When sending your instrument in for repair complete the form in the back of this manual For worldwide support and the office closes to your facility refer to the Support Offices section on the...

Страница 136: ...tronica s r l Strada 2 Palazzo C4 20090 Milanofiori Assago Milan Italy Tel 39 02 5750 1796 FAX 39 02 5750 1828 Racal Elektronik System GmbH Frankenforster Strasse 21 51427 Bergisch Gladbach Germany Te...

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