Home

HP 1GSa/s User's Manual

1. rn 3 1 3 2 Recommended Test Equipment issu 3 1 3 35 RECOM star ene 3 1 3 4 Performance Test Interval iii 3 1 3 5 Performance Test Procedures iii 3 1 3 6 DG GALE OUTPUT Testi icd eene cd rd 3 2 9 7 SAGCAEOUTPUT Test ie inte e tee 3 3 3 8 Input R SISTANCE actae e 3 4 3 9 Voltage Measurement Accuracy iii 3 6 3 10 Offset ACCU ACY A 3 9 3 11 Bandwidth 5 nie iit n fe e ter e 3 11 3 12 Time Measurement 3 13 3 13 Trigger Sensitivity Dee 3 15 3 1 Introduction The procedures in this section test the oscilloscope module s electrical performance using the specifications listed in Section I as the performance standards All tests can be performed without access to the interior of the instrument At the end of this section is a form that can be used as a record of performance test results 3 2 Recommended Test Equipment Equipment recommended for performance tests is listed in table 1 3 Any equipment that satisfies the critical specifications given in the table may be substituted for the recommended models 3 3 Test Record Results of performance tests may be tabulated on the Performance Test Record table 3 1 at the end of the procedures The test record lists all of the tested specifications and their acceptable li
2. general purpose NSR graticule groove NUM henries high OBD hardware hardened OD mercury OP AMP height OSC helical P horizontal P O Hewlett Packard PC Hewlett Packard PCB Interface Bus PD hour s PF high voltage PI Hertz PL input output PLA integrated circuit inside diameter PLST inch PNP include s incandescent POLYE input POS intensity POT internal inverter junction field PPM effect transistor jacket PREAMP kilo 103 PRGMBL low PRL pound PROG latch PSTN local PT light emitting PW diode PWR long R S lithium RAM lock lockwasher RECT low power Schottky RET low voltage RF mega 106 megohms RGLTR meter distance RGTR machine RK maximum RMS transistor SCR triode thyristor resistor thermistor switch jumper transformer terminal board test point manufacturer microprocessor miniature miscellaneous molded millimeter metal oxide mounting metallic multiplexer milliwatt nano 10 9 no connection n channel metal oxide semiconductor negative positive negative neoprene notrecommended for field replacement not separately replaceable numeric order by description octal outside diameter operational amplifier oscillator plastic part of printed circuit printed circuit board power d
3. AC Cal The AC Cal is a multiplexer circuit that can provide several signals to the Probe Compensation AC Calibrator output on the rear panel The signal provided depends on the mode of the instrument It can be either a probe compensation signal a pulse representing the trigger event signals used for self calibration or the 100 MHz reference oscillator when sample period is 1 ns DC Cal The DC Cal output a rear panel signal is used for self calibration It is one output from the 16 channel DAC Digital Interface The Digital Interface provides control and interface between the system control and digital functions in the acquisition circuitry Analog Interface The Analog Interface provides control of analog functions in the acquisition circuitry It is primarily a 16 channel DAC with an accurate reference and filters on the outputs It controls channel offsets and trigger levels and provides the DC Cal output 6 3 16532 Service 6 7 Self Tests The self tests for the HP 16532A oscilloscope module will identify the improper operation of major func tional areas in the module They are not intended for component level diagnostics If there are multiple oscilloscope modules the user must select the specific oscilloscope module to be tested at the main test system menu Multiple HP 16532A modules that are connected as one unit are rec ognized as a single unit in the test menu The external trigger cables connected
4. IN gt CHANNEL 1 SAME AS CHANNEL 2 8 CHAN 2 g IN ATTENUATOR 406 a gt PREAMP MEMORY LOW FREQ AMP n CLOCK SELECT 100 amp 06 2 SYNC TIMEBASE 4 1 HYBRID Ad Y NV CH1 CH2 ARM BYGGER QUAL TRIGGER TRIG LOGIC TRIGGER AC CAL OUTPUT PE CAL WE MB o N a a lt lt lt TO DIGITAL ACQUISITION INTERFACE LA 4 CIRCUITRY lt ANALOG INTERFACE LA DAC DC CAL output lt DC CAL CPU INTERFACE 16532814 Figure 6 1 HP 16532A Oscilloscope Block Diagram phase detector provide the sample clock for higher sample rates After conditioning and sampling the signals are digitized then stored in hybrid IC containing FISO fast in slow out memory The eight bit digitizes the channel signal Digitization is done by comparators in a flash converter The sample clock latches the digitized value of the input to save it so that it can be sent to memory FISO Memory 8000 samples of the FISO fast in slow out memory are used per measurement per channel Memory positions are not addressed directly The configuration is a ring which loops continuously as it is clocked Memory position is tracked by counting clocks The clocking rate is the same as the ADC however the clock frequency 1 half that of the ADC since the FISO clocks on both transitions of the clock period Da
5. HEWLETT PACKARD SERVICE MANUAL HP 16532A 1 GSa s Digitizing Oscilloscope COPYRIGHT HEWLETT PACKARD COMPANY COLORADO SPRINGS DIVISION 1991 1993 1900 GARDEN OF THE GODS ROAD COLORADO SPRINGS COLORADO U S A ALL RIGHTS RESERVED Manual Part No 16532 97002 PRINTED JULY 1993 SAFETY CONSIDERATIONS GENERAL This is Safety Class I instrument provided with terminal for protective earthing OPERATION BEFORE APPLYING POWER verify that the power transformer primary is matched to the available line voltage the correct fuse is installed and Safety Precautions are taken see the following warnings In addition note the in strument s external markings which are described under Safety Symbols e Servicing instructions are for use by service trained per sonnel To avoid dangerous electric shock do not perform any servicing unless qualified to do so BEFORE SWITCHING ON THE INSTRUMENT the protec tive earth terminal of the instrument must be connected to the protective conductor of the mains powercord The mains plug shall only be inserted in socket outlet pro vided with protective earth contact The protective action must not be negated by the use of an extension cord power cable without protective conductor grounding Grounding one conductor of two conductor outlet 1 not sufficient protection e If this instrument is to be energized via auto trans former for voltage reduc
6. calibrate calibration carbon composition counterclockwise ceramic cubic feet minute choke chamfered channel character centimeter complementary metal oxide semiconductor common mode rejec tion conductor counter connector contact cathode ray tube clockwise diameter digital to analog digital to analog converter darlington data double decibel referenced to imW direct current decoder degree demultiplexer detector diameter dual in line package division direct memory access double pole double throw DAG refresh controller driver DWL ECL ELAS EXT F FC FD FEM FF FL FM FR FT FW FXD GEN GND GP GRAT GRV H HD HDND HG HGT HLCL HORIZ HP HP IB HR HV HZ VO IC ID IN INCL INCAND INP INTEN INTL INV JFET JKT K LB LED REFERENCE DESIGNATOR fuse Q filter hardware R electrical connector RT stationary portion jack 5 coil inductor T misc mechanical part TB electrical connector TP moveable portion plug ABBREVIATIONS dowel MFR emitter coupled logic MICPROC elastomeric MINTR external MISC farads metal film MLD resistor MM carbon film MO composition MTG feed MTLC female MUX flip flop MW flat N foam from NC front NMOS gain bandwidth product NPN full wave fixed NPRN generator NRFR ground ed
7. through test point tapping triple transformer trigger ed trimmer turn s transistor transistor transmitter micro 10 6 Underwriters Laboratory unregulated voltampere volt ac variable voltage controlled oscillator volt dc vertical voltage filtered versus watts with without wirewound transistor zener degree Celsius Centigrade degree Fahrenheit degree Kelvin 5 3 16532 Replaceable Parts 2 ATTENUATORS 4 p 16532 02 Figure 5 1 Parts Identification 5 4 16532 Replaceable Parts Table 5 2 Replaceable Parts List Reference HP Part Qty Description Mfr Mfr Part Designator Number D Code Number 16532 69501 2 1 Board Exchange Assembly does not include attenuator assemblies A1 16532 66501 6 1 Board Assembly does not include attenuator assemblies A2 16532 63401 9 2 Attenuator Assembly H1 16500 22401 5 2 Endplate Thumbscrew H2 0510 0684 9 2 Thumbscrew Retaining Ring H3 1250 2075 51 4 Nut Hex 1 2 inch RF Connector H4 2 Nut Hex RF Connector Included with W2 H5 2 Washer RF Connector Included with W2 H6 0515 0430 3 Endplate Screw H7 0515 1246 1 4 Attenuator Retainer Screw MP1 16532 40501 2 1 Rear Panel MP2 16500 29101 6 1 Ground Spring MP3 16532 94301 3 1 ID Label Wi 16532 61601 7 1 Master Slave Trigger Cable W2 16
8. 09 CHANNEL 2 INPUT Figure 3 1 Voltage Measurement Accuracy Test 2 In the Waveform Selection menu delete channel 2 If channel 1 is not inserted insert channel 1 Set the following parameters in the order given Menu Selection Setting Channel Input 1 Probe 1 1 Coupling 1MQ DC s Div 500 ns Trigger Mode Immediate Display Mode Average Average 8 Grid On Markers On Set the Channel Coupling field to 1 or damage to the equipment will result 16532 Performance Tests Use the following table for steps 3 through 9 V Div Offset Supply Upper Limit Lower Limit 4 V Div 7 0 V 14 0 V 13 7 14 3 V 1 V Div 1 75 V 3 50 V 3 43 V 3 57 V 400 mV Div 700 0 mV 1 40 V 1 37 V 1 43 V 40 mV Div 70 0 mV 140 0 mV 137 0 mV 143 0 mV 40 mV Div 70 0 mV 140 0 mV 143 0 mV 137 0 mV 400 mV Div 700 0 mV 1 40 V 1 43 V 1 37 V 1 V Div 1 75 V 3 50 V 3 57V 3 43 V 4 V Div 7 0 V 14 0 V 14 3 V 13 7 V 3 With the power supply disconnected from the channel input set the Channel menu to the V Div 3 8 range and offset values shown in the first line of the table On the oscilloscope select RUN REPETITIVE and wait for approximately five seconds then select STOP Read the voltage displayed under the channel label on the left of the display Enter this value on the performance test record in the Zero Input column Set the power supply to the first su
9. 5 1 Introduction The service policy for this instrument is replace ment of defective assemblies This service manual contains information for finding a defective assembly This section contains parts and ordering information for the HP 16532A Oscilloscope Module Table 5 1 lists the reference designator and abbreviations used throughout this manual Table 5 2 lists all replaceable parts by reference designator 5 2 Abbreviations Table 5 1 lists abbreviations used throughout the manual In some cases two forms of the abbreviations are used one in all capital letters the other partially or not capitalized This was done because the abbreviations in the parts list are always all capitals However in other parts of the manual other abbreviation forms are used with both lower and uppercase letters 5 3 Replaceable Parts List Table 5 2 lists replaceable parts and is organized as follows Exchange assemblies alohanumerical order by reference designation Electrical assemblies alohanumerical order by reference designation e Chassis mounted parts alphanumerical order by reference designation HP 16532 Replaceable Parts SECTION V Replaceable Parts The information given for each part consists of the following Complete reference designation Hewlett Packard part number Total quantity Description of part e Check digit The total quantity for each part is only given once
10. All Tests Figure 6 6 Test Menu 7 Touch the A D Test field HP 16532A Service The individual test run screens see figure 6 7 give the test name a brief description of the test number of test runs and the number of test failures Functional Tests PLEASE DISCONNECT ALL INPUTS A D Test runs 0 This test verifies the correct operation of the A D on this board failures 9 Figure 6 7 WD Test Run Screen 8 Touch Run then drag your finger to Single or Repetitive During the time Single run Repetitive run is executing the Run field displays Stop 9 To stop Repetitive run touch Stop See figure 6 8 Scope D Functional Tests PLEASE DISCONNECT ALL INPUTS A D Test runs 12 This test verifies the correct operation of the A D on this board failures 9 Figure 6 8 Stop Field 16532 Service 10 Touch Done to exit the A D test 11 To exit the self tests touch the following fields in the lettered sequence below 1GSa s Scope b Test System c Configuration d Exit Test 12 Touch the box that reads Touch box to Exit Test System See figure 6 9 Test System Exit Test Touch box to Exit Test System Module Name Code Version Card ID Code 1 GSa s Scope D 04 00 ROM Version 00 02 System Memory 2 5 Figure 6 9 Exit T
11. Contents SECTION IV Calibration 451 INTO cr oet tc AAA 3 4 1 4 2 Safety Requirements ied e er a E ete 4 1 4 3 Calibration Interval tre pet et epe be tp e eie bindes 4 1 4 4 Maintaining System 4 1 4 5 Calibration Protection Switch sise 4 1 4 6 Recommended Test Equipment sis 4 2 4 7 Instrument 4 2 4 8 Gallbration s sua opued up an pet ao does 4 2 4 9 Setting the PROTECT UNPROTECT Switch to seen 4 3 4 10 Equipment Required for Calibration sn 4 4 4 11 Loading the Default Calibration Factors 4 4 4 12 Self Cal Menu Calibrations iii 4 5 4 13 Setting the PROTECT UNPROTECT Switch to PROTECT esses 4 8 4 14 Sealing the 4 8 Section V Replaceable Parts 2 aca tU tes A en has ete hs eh a hat 5 1 5 22 FADBEVIdtlons Lismarka een eee 5 1 5 3 Replaceable Parts List 5 1 5 4 Ordering Information iii 5 1 5 5 Exchange Assemblies 1 5 3 ob a ee sere 5 1 5 6 Direct Mail Order System iii 5 2 SECTION VI Service 621 Introductio usto em STRAE tdt 6 1 6 2 Safety Requirements iii 6 1 6 3 Recommended Test Equipment iii 6 1 6 4 Modu
12. ENVIRONMENT Temperature Humidity Altitude Vibration Operation Non operating Instrument 0 to 55 C 32 to 131 F Probes and cables 0910 65 C 32 to 149 F Instrument up to 95 relative humidity at 40 104 F Recommended disk media 8 to 80 relative humidity at 40 C 104 F To 4600 m 15 000 ft Random vibration 5 500 Hz 10 minutes per axis 0 3 g rms Random vibration 5 500 Hz 10 minutes per axis 2 41 9 rms and swept sine resonant search 5 500 Hz 0 75 g 0 peak 5 minute resonant dwell 4 resonances per axis 1 8 HP 16532 General Information Table 1 3 Recommended Test Equipment EQUIPMENT CRITICAL SPECIFICATIONS RECOMMENDED MODEL USE Signal Generator Frequency 1 250 MHz at approx HP 8656B Option 001 P 170 mV RMS resolution Output Accuracy 1 dB 1 MHz time base accuracy 0 25 ppm Dc Power Supply Range 35 000 to 35 000 Vdc 1 mV 6114A P Digital Multimeter 0 1 mV resolution HP 3458A P Accuracy better than 0 00596 Resistance measurement better than 0 2596 accuracy Power Meter Sensor 1 250 MHz 3 accuracy HP 436 8482A Power Splitter Outputs differ by lt 0 15 dB HP 11667B P Blocking Capacitor 50 Q BNC m to f 0 18 uF 200 V HP 10240B P Adapter 50 BNC m m 1250 1236 50 Q Type N m to BNC m 1250 0082 Adapt
13. Equipment iii 1 2 1 1 Introduction The service policy for this instrument is replace ment of defective assemblies This service guidel contains information for finding a defective assembly by testing and servicing the HP 16532A 1 GSa s Oscilloscope Module Also included in the guide are installation procedures and a list of recommended test equipment This guide is divided into six sections as follows General Information Il Installation Performance Tests IV Calibration V Replaceable Parts Service The General Information Section includes safety requirements product description and list of accessories supplied and of accessories available Also included are tables listing specifications and operating characteristics and a list of recommended test equipment HP 16532A General Information SECTION I General Information To complete the service documentation for your HP 16500 Logic Analysis System place this service manual in the 3 ring binder with your other logic analysis system Service Guides 1 2 Module Covered by This Manual The information covered in this manual is for the HP 16532A 1 GSa s Oscilloscope Module 1 3 Safety Requirements Specific warnings cautions and instructions are placed wherever applicable throughout the manual These must be observed during all phases of operation service and repair of the module Failure to comply with them violates safety standards of
14. Hewlett Packard as single units not chained together If you need to use the modules as one unit chained together perform the Time Null Calibration in section 4 12 The calibration procedure sets the oscilloscope calibration factors and stores them in non volatile RAM on the board The procedures use signals generated in the oscilloscope module itself to calibrate channel sensitivity offset and trigger parameters The calibration factors set up the module each time the instrument is turned on The calibration procedures in this section should be followed in their entirety and in the sequence listed in table 4 1 Though in this section the default calibrations are loaded before calibration calibration can be done without loading them However if they are loaded they should be loaded before an actual calibration is done When calibrating the module it must be installed in the mainframe and the mainframe covers and filler panels must be in place The module must be warmed up refer to Instrument Warmup given earlier in this section Calibration procedures require the use of cables and adapters only Non service personnel can perform the calibration however to do the calibration it is necessary to unprotect the current calibration values This may not be allowed in some circumstances check with your Calibration Laboratory or Service Department before you attempt calibration To perform calibration follow the Self Cal
15. Menu Calibration procedures given later in this section Table 4 1 Calibration Sequence 4 2 Sequence Calibration Paragraph 1 Set the PROTECT UNPROTECT Switch to UNPROTECT 4 9 2 Default Not required as part of the calibration procedures 4 11 Self Cal Menu 3 Vertical Calibration all channels 4 12 4 Delay Calibration Channel 1 4 12 Delay Calibration Channel 2 4 12 5 Time Null Calibration all channels 4 12 6 Logic Trigger Channel 1 4 12 7 External Trigger Null Calibration 4 12 8 Set the PROTECT UNPROTECT Switch to PROTECT 4 13 16532 Calibration 4 9 Setting the Switch to UNPROTECT CAUTION The effects of ELECTROSTATIC DISCHARGE can damage electronic nents Use grounded wrist straps and mats when you are performing any kind of service on this module The oscilloscope board contains a calibration PROTECT UNPROTECT switch This switch must be set to UNPROTECT before calibration can be done Set the switch to UNPROTECT as follows 1 Remove power from the instrument Pull halfway out all of the modules located above the oscilloscope and remove the filler panels and cards located above the oscilloscope See figure 4 1 for the removal sequence TOP CARD NEXT LOWEST 2 4 1 Endplate Overlap Top Sequence 2 Remove the oscilloscope module and set the PROTECT UNPROTECT sw
16. NEXT LOWEST 2 16530 EX13 Figure 2 1 Endplate Overlap Top Sequence 16532A Installation Slide the oscilloscope module into the card cage approximately halfway If you have more oscilloscope cards to install slide them into the card cage approximately halfway Firmly seat the bottom card into the backplane connector Keep applying pressure to the center of the card endplate while tightening the thumb screws finger tight Repeat step 6 for all cards and filler panels in a bottom to top order See figure 2 2 Any filler panels that are not used should be kept for future use Filler panels must be installed in all unused card slots for correct air circulation NEXT 2 5 BOTTOM CARD gt 16530 15 Figure 2 2 Endplate Overlap Bottom Sequence 16532A Installation 2 7 Operating Environment The operating environment is listed in table 1 2 of Section I of this manual Note should be made of the non condensing humidity limitation Condensation within the instrument can cause poor operation or malfunction Protection should be provided against internal condensation The HP 16532A Oscilloscope Module will operate at all specifications within the temperature and humidity range given in table 1 2 However reliability is enhanc
17. Probe 10 2 5 pf miniprobe 2 m HP 10440A 1 7 Specifications Module specifications are listed in table 1 1 These specifications are the performance standards against which the module is tested 1 8 Operating Characteristics Table 1 2 is a listing of the module operating characteristics The operating characteristics are not specifications but are the typical operating characteristics included as additional information for the user 1 9 Recommended Test Equipment Equipment required to test and maintain the HP 16532A Oscilloscope Module is listed in table 1 3 Other equipment may be substituted if it meets or exceeds the critical specifications listed in the table 16532 General Information Table 1 1 HP 16532A Specifications HP 16532A SPECIFICATIONS Type 2 channel simultaneous acquisition Bandwidth dc to 250 MHz real time de coupled Maximum Sample Rate 1 Gigasample per second Number of Channels 2 4 6 8 simultaneous channels using the same time base setting OR Up to 10 channels with independent time bases for each pair of channels Up to 18 channels with the HP 16501A Expansion Frame Rise Time 1 4 ns ADG 8 bit real time Vertical Resolution 8 bits over 4 vertical divisions 0 4 Waveform Record Length 8000 points Time Interval Measurement Accuracy 3 6 0 00596 X At 2x 107 8x delay setting 150 ps Vertical dc Gain Accuracy 1 596 of full sc
18. at the first appearance of the part number in the list 5 4 Ordering Information To order a part listed in the replaceable parts table quote the Hewlett Packard part number check digit indicate the quantity required and address the order to the nearest Hewlett Packard office To order a part that is not listed in the replaceable parts table include the instrument model number instrument serial number the description and function of the part and number of parts required Address the order to the nearest Hewlett Packard office 5 5 Exchange Assemblies Exchange assemblies are available when a repairable assembly is returned to Hewlett Packard These assemblies have been set up on the Exchange Assembly program This allows the customer to exchange the faulty assembly with one that has been repaired calibrated and performance verified by the factory The cost is significantly less than that of a new assembly 5 1 16532 Replaceable Parts Exchange assemblies are listed a separate section in the replaceable parts table They have a part number in the form XXXXX 695XX where the new parts would be 665 Before ordering an exchange assembly check with your local parts or repair organization for procedures 5 6 Direct Mail Order System Within the USA Hewlett Packard can supply parts through direct mail order The advantages are as follows e Direct ordering and shipment from Hewle
19. be replaced See Service in Section M 3 5 16532 Performance Tests 3 9 VOLTAGE ACCURACY This test verifies the DC voltage measurement accuracy of the instrument This procedure uses dual cur sor measurement that nullifies offset error resulting in the following measurement 1 5 of full scale 0 016 x V div Specification 1 5 of full scale offset accuracy 0 008 x V div Equipment Required The following equipment is required for this test Procedures are based on the model or part numbers rec ommended Recommended Equipment Required Critical Specification Model Part Number DC Power Supply 14 to 14 0 1 mV resolution 6114A Digital Multimeter Better than 0 1 accuracy HP 3458A Cable 50 BNC m to 48 inch 10503A Adapter 50 Q BNC f to Dual Banana Plug HP 1251 2277 cable to power supply Adapter 50 BNC tee m f f HP 1250 0781 Blocking Capacitor 50 m f 0 18 uF 200 HP 10240B 3 6 16532 Performance Tests Procedure 1 Using BNC adapter connect one end of the cable to the power supply Connect the BNC tee the blocking capacitor and the shorting endcap to the other end of the cable Refer to figure 3 1 HP 16532A BOARD OSCILLOSCOPE CHANNEL 1 INPUT BNC TEE ADAPTER POWER SUPPLY BLOCKING CAP SHORTING END OSCILLOSCOPE 16532
20. channel 2 In the Waveform Selection menu delete channel 1 and insert channel 2 Repeat steps 1 through 9 for channel 2 replacing channel 1 with channel 2 where applicable Note Failure of the trigger sensitivity test can be caused by a defective main assembly 16532 Performance Tests Table 3 1 Performance Test Record Hewlett Packard Tested by Model 16532 Oscilloscope Module Recommended Performance Work Order No Serial No Verification Interval 12 Months Date Tested Paragraph No Test Results 3 6 DC CAL OUTPU Minimum Maximum Actual 5 000Vdc 10mV 4 990Vdc 5 010Vdc Vdc 377 AC CAL OUTPU Minimum Maximum Actual 0 8Vp p 10 0 72Vp_p 0 88Vp_p Vp p 1000Hz 10 Minimum Maximum Actual 900Hz 1100Hz HZ 3 8 Input Resistance Channel 1 Reading 50Q 0 50 49 5 to 50 50 1MQ 10 0 990 to 500 E 20mV Div Q 1 010MQ IMA E 20mV Div Q 500 200mV Div Q IMA E 200mV Div Q 500 E 1V Div Q 1MQ 1V Div Q 500 E 4V Div Q 1MQ 4V Div Q Channel 2 Reading 500 E 20mV Div Q IMA E 20mV Div Q 500 200mV Div Q IMA E 200mV Div Q 500 E 1V Div Q 1MQ E 1V Div Q 500 E 4V Div Q 1MQ E 4V Div Q 3 9 Voltage Measurement Accuracy Channel 1 Upper Limit Lower Limit Zero Input Measured Actual 13 7V 14 3V V 3 43V 3 57V V 1 37V 1 43V V 137 0nV 143 0mV mV 143 0mV 137 OmV mV AY 37V 3 57V 3 43V V 4 3V 3 7V V 16532 Perform
21. dc coupling Compensation for the passive attenuators is laser trimmed and is not adjustable After the passive attenuators the signal is split into high frequency and low frequency components Low frequency components are amplified on the main assembly where they are combined with the offset voltage The ac coupling is implemented in the low frequency amplifier The high and low frequency components of the signal are recombined and applied to the input FET of the preamp The FET provides a high input impedance for the preamp The programmable preamp adjusts the gain to suit the required sensitivity and provides the output signal to the main assembly The output signal is then sent to both the trigger circuitry and ADC 6 6 Main Assembly Theory of Operation Acquisition The acquisition circuitry provides the sampling digitizing and storing of the signals from the channel attenuators The channels are identical The external trigger ECL input cannot be displayed Trigger signals from each channel and the external triggers synchronize acquisition through the time base circuitry A 100 MHz oscillator and a time base provide system timing and sample clocking A voltage controlled oscillator VCO frequency divider and digital 6 1 HP 16532 Service CHAN 1
22. div in 1 2 4 increments DC Offset Range 1 1 Probe Probe Factors Vertical Sensitivity 4 mV div to 100 mV div gt 100 mV div to 500 mV div gt 500 mV div to 2 5 V div gt 2 5 V div to 10 V div Any integer ratio from 1 1 to 1000 1 Maximum Safe Input Voltage 1 MQ 250 V peak lt 10 KHz 500 5 VRMS Channel to Channel Isolation to 50 MHz 40 dB 50 MHz to 250 MHz 30 dB TIMEBASE Range 1 ns div to 5 s div Resolution 20 ps Delay Pre trigger Range Time div Setting 1 us to 5 s div 1 ns to 500 ns div Delay Post trigger Range Time div Setting 100 ms to 5 s div 1 us to 50 ms div ins to 500 ns div Available Offset 2V 10V 50 V 250 V Available Delay 8 s div 4 us Available Delay 2 5ks 33 500 x s div 16 7 ms 1 4 HP 16532 General Information Table 1 2 HP 16532A Operating Characteristics cont TRIGGERING Trigger Level Range Trigger Modes Immediate Edge Pattern Auto Trigger Events Intermodule External DIGITIZER Within display window full scale and offset Triggers immediately after arming condition is met Triggers on rising or falling edge of any internal channel or external trigger count adjustable from 1 to 32 000 Triggers on entering exiting duration greater than duration less than and duration in range for specified pattern of both internal channels and ext
23. graph 6 10 for procedures to remove and replace a faulty cable If either of the attenuators are faulty re move the faulty attenuator and replace it with a new one Refer to paragraph 6 11 for procedures to re move and replace a faulty attenuator Oscilloscope Module Removal Procedure CAUTION Do not install remove or replace the module in the instrument unless the instru ment power is turned off 1 Turn off the instrument power switch unplug the power cord and disconnect any input or output connections 2 Starting from the top loosen the thumb screws on the filler panels and the cards See figure 6 11 if TOP CARD 31 NEXT LOWEST 5 12 Lad 16530 EX13 Figure 6 11 Endplate Overlap Top Sequence 3 Starting from the top pull out the cards and the filler panels halfway 4 Pull out the oscilloscope module completely 16532 Service 5 If a trigger cable was determined to be faulty replace the faulty trigger cable on the oscilloscope module refer to paragraph 6 10 Otherwise skip to step 6 6 If an attenuator was determined to be faulty replace the faulty attenuator on the oscilloscope mod ule refer to paragraph 6 11 Otherwise skip to step 7 7 If the oscilloscope module was determined to be faulty remove the attenuators from the oscillo scope module refer to paragraph 6 11 8 Acquire a replacement os
24. rear panel MP1 and the ground spring MP2 to the board assembly 1 and attach them with the three end plate screws H6 You may need to loosen the attenuator retainer screws H7 before assembling the ground spring to the board assembly then tighten the attenuator screws H7 when the assembly is finished Attach the SMB connectors to the rear panel MP1 with two hex nuts H4 and two washers H5 Attach the connectors to the rear panel MP1 with four hex nuts Note Tighten the hex nuts down 50 that they will not interfere with the installation of the board above the oscilloscope module One of the flat surfaces on the outside edge of the nut should be parallel with the top edge of the rear panel CERTIFICATION Hewlett Packard Company certifies that this product met its published specifications at the time of ship ment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members WARRANTY This Hewlett Packard product is warranted against defects in material and workmanship for period of one year from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defect
25. to 35 000 1 mV resolution HP 6114A Digital Multimeter Better than 0 1 accuracy 3458A Cable 50 Q BNC m to m 48 inch HP 10503A Adapter 50 Q BNC f to Dual Banana Plug HP 1251 2277 Procedure Zero Input Offset 1 Disconnect all cables and probes from the oscilloscope inputs In the Waveform Selection menu de lete channel 2 If channel 1 is not inserted insert channel 1 Then set up the oscilloscope module according to the following parameters in the order given Menu Selection Setting Channel Input 1 Probe 1 1 v Div AV Offset OV Coupling 1MQ DC s Div 500 ns Trigger Mode Immediate Display Mode Average Average 32 Grid On Markers On 2 With the DC power supply disconnected from the channel input make sure the markers are near the center of the display 3 9 16532 Performance Tests Select RUN REPETITIVE Wait approximately 15 seconds averaging complete then select STOP The display should read 0 00 V 320 0 mV as read from the markers voltage field Record the reading in the performance test record In the Channel menu change the vertical sensitivity to 1 V Div Select RUN REPETITIVE and wait approximately 15 seconds averaging complete then select STOP The display should read 0 00 V 80 0 mV Record the reading in the performance test record Inthe Channel menu change the vertical sensitivity to 100 mV Div Select RUN REPETITIVE and w
26. 12 Time Measurement EAN X 0 ns 5 500ns 150ps IN X 0 ns MEAN X 0 MIN 0 ps 0 ns 0 MEAN 0 ps 99 00ns 155ps EAN X 0 ns IN 0 ns MEAN X 0 MIN 0 ps 0 ns 0 MEAN 0 ps 3 13 Trigger Sensitivity Channel 1 Trigger Stable 100mVp Yes No Trigger Stable 200mVp Yes No Channel 2 Trigger Stable 100mVp p Yes No Trigger Stable amp 200mVp Yes No 3 20 TABLE OF CONTENTS Calibration 451 7 Introduction eie eant ae e Pa aae E E MR ed Es 4 1 4 2 Safety 4 1 4 3 Calibration Interval i oi edi m eee beh Pedes be td 4 1 4 4 Maintaining System 4 1 4 5 Calibration Protection Switch ss 4 1 4 6 Recommended Test Equipment ss 4 2 4 7 Instrument Warmup fete A E enden mtem 4 2 48 A RN 4 2 4 9 Setting the PROTECT UNPROTECT Switch to 4 3 4 10 Equipment Required for Calibration nennen 4 4 4 11 Loading the Default Calibration Factors 4 4 4 12 Self Cal Menu Calibrations iii 4 5 4 13 Setting the PROTECT UNPROTECT Switch to 4 8 4 14 Sealing the Mainframe eroi ect t tete lito 4 8 4 1 Introduction This section provides information on calibrating the HP 16532A 1 GSa s Oscilloscope
27. 532 61602 8 1 External Trigger Cable 5 5 5 6 TABLE OF CONTENTS Service 6 15 ea 6 1 6 2 Safety Requirements siennes 6 1 6 3 Recommended Test Equipment is 6 1 6 4 Module Block Diagram and Theory of Operation 6 1 6 5 Attenuator Theory of Operation iii 6 1 6 6 Main Assembly Theory of Operation iii 6 1 NS A 6 4 6 8 Troubleshooting 6 10 6 9 Oscilloscope Module Removal and Replacement 6 18 6 10 Trigger Cable Removal and Replacement 6 20 6 11 Attenuator Removal and Replacement 6 21 6 1 Introduction The service policy for this instrument is replace ment of defective assemblies This service manual contains information for finding a defective assembly This section contains information for servicing the HP 16532A Oscilloscope Module Included are block level theory and procedures for self diagnostics and troubleshooting If the module or a cable is determined faulty procedures are provided for module and cable replacement 6 2 Safety Requirements Specific warnings cautions and instructions are placed wherever applicable throughout the manual These must be observed during all phases of operation service and repair of the module Failure to comply with them violates safety standards of design manufacture and intended use of thi
28. E 4 DO PV TESTS PASS 2 PERFORM CALIBRATION SEE NOTE 5 DO ALL CALIBRATION STEPS RUN OK s RUN PERFORMANCE VERIFICATION TESTS SEE NOTE 4 DO PV TESTS PASS 2 Figure Troubleshooting Sheet 4 NO NO Y NOTE 4 REFER TO SECTION FOR PV TEST PROCEDURES NOTE 5 REFER TO SECTION IV FOR CALIBRATION PROCEDURES REPLACE MODULE AND RETEST 6 10 GO TO TROUBLESHOOTING SHEET 1 16532813 Troubleshooting Flowchart 16532 Service Troubleshooting Sheet 5 E FROM TROUBLESHOOTING SHEET 2 Y REPLACE SUSPECT ATTENUATOR WITH KNOWN GOOD ATTENUATOR Y CONNECT SIGNAL TO CHANNEL DOES SAME CHANNEL FAIL 3 YES NO REPLACE MODULE REPLACE FAULTY AND RETEST ATTENUATOR AND RETEST GO TO TROUBLESHOOT ING 16532812 SHEET 1 Figure 6 10 Troubleshooting Flowchart 16532 Service 6 9 Oscilloscope Module Removal and Replacement The effects of ELECTROSTATIC DISCHARGE can damage electronic compo nents Use grounded wrist straps and mats when you are performing any kind of service on this module When you need to remove and replace a module test the module first to determine the faulty part If either of the trigger cables are faulty remove the faulty cable and replace it with a new one Refer to para
29. LLY OR USE SEE NOTE 3 ALL TESTS m REPLACE GO TO bee BOARD 5 TROUBLESHOOTING RETEST 1 EXIT TEST SYSTEM CONNECT COMPENSATION SIGNAL TO CHANNEL 1 CONNECT COMPENSAT ION m SIGNAL TO NEXT CHANNEL TOUCH AUTOSCALE TOUCH CONTINUE IS NO A WAVEFORM NOTE DISPLAYED EE E CHANNEL ARE a THERE OTHER YES 16532B09 CHANNELS ANY FAILURES 2 GO TROUBLESHOOTING SHEET 5 GO TO TROUBLESHOOTING SHEET 4 Figure 6 10 Troubleshooting Flowchart Troubleshooting Sheet 3 IS 16532A OPERATING SYSTEM PRESENT ON DISK f TURN OFF POWER AND RESEAT SCOPE CARD DOES SCOPE MODULE APPEAR ON CONF IGURAT ION SCREEN NO TURN OFF POWER AND MOVE MODULE DIFFERENT SLOT DOES SCOPE MODULE APPEAR ON CONF IGURAT ION SCREEN NO REPLACE MODULE AND RETEST YES YES FROM TROUBLESHOOTING SHEET 1 INSERT DISK WITH 16532A OPERATING SYSTEM IN DISK DRIVE AND REBOOT POSSIBLE INTERFACE PROBLEM WITH MOTHERBOARD CONNECTORS A PROBLEM WITH MA INF MOTHERBOARD GO TO TROUBLESHOOTING SHEET 1 GO TO TROUBLESHOOTING SHEET 1 16532810 Figure 6 10 Troubleshooting Flowchart Y a HP 16532A Service 16532 Service 6 16 FROM TROUBLESHOOT ING SHEETS 1 AND 2 PERFORM DC AND AC CAL OUTPUT PV TESTS SEE NOT
30. Null of the Self Cal menu as follows 1 Connect the cables BNC adapter and BNC tee adapter together as shown in figure 4 4 Note When you touch Start the instrument will you to connect the cables to the appropriate locations on the rear panel of the module BNC TEE ADAPTER BNC SMB ADAPTER 16532e19 Figure 4 4 Ext Trig Null Calibration Connections 2 Touch the Procedure field then select Ext Trig Null from the pop up menu 3 Touch the Start field and follow the instructions on the display 4 Atthe conclusion of the ext trig null calibration remove the cables from the rear of the module Messages will be displayed as each calibration routine is completed to indicate calibration has passed or failed The resulting calibration factors are automatically stored to nonvolatile RAM at the conclusion of each calibration routine This is the conclusion of the calibration procedures The display should now look similar figure 4 5 4 7 16532 Calibration 1 65 5 Scope D Calibration Mode Procedure Channel Self Cal Ext Trig Null EXT art FUNCTION ch 1 ch 2 ext Time Null Ext Trig Null passed F failed D defaulted corrupted prefixed by if software revision without re cal Figure 4 5 End of Calibration Display 4 13 Setting the PROTECT UNPROTECT Switch to PROTECT CAUTION The effects of ELECTROSTATIC DISCHARGE can damage electronic nents Use gro
31. Re cord the reading in the performance test record 12 Repeat steps 7 through 10 for the remaining lines of the table using the V Div range offset and sup ply voltages given in the table 13 In the Channel menu select channel 2 In the Waveform Selection menu delete channel 1 and insert channel 2 14 Repeat steps 1 through 12 for channel 2 replacing channel 1 with channel 2 where applicable 3 10 3 11 BANDWIDTH This test checks the bandwidth of the oscilloscope module Specification Bandwidth dc coupled to 250 MHz Equipment Required HP 16532A Performance Tests The following equipment is required for this test Procedures are based on the model or part number rec ommended Equipment Required Critical Specification Recommended Model Part Number Signal Generator 1 250 MHz at approx 170 mVrms HP 8656B Power Meter Sensor 1 250 MHz 3 accuracy HP 436 8482A Power Splitter Outputs differ by lt 0 15 dB HP 11667B Cable Type N m to 24 inch 11500B Adapter 50 m to m 1250 0082 1 With the cable connect the signal generator to the power splitter input Connect the power sensor to one output of the power splitter 2 Using an N to BNC adapter connect the other power splitter output to the Channel 1 input of the oscilloscope module 3 the Waveform Selection menu delete channel 2 If c
32. ait approximately 15 seconds averaging complete then select STOP The display should read 0 00 V 8 0 mV Record the reading in the performance test record In the Channel menu change the vertical sensitivity to 10 mV Div Select RUN REPETITIVE and wait approximately 15 seconds averaging complete then select STOP The display should read 0 00 V 800 0 Record the reading in the performance test record DC Input Offset 7 Set the Channel Coupling field to or damage to the equipment will result Use the BNC to banana adapter to connect the cable between the power supply and channel 1 input Monitor the power supply using a voltmeter 8 Use the following table for the next steps V Div Offset Supply Min Max 1 V Div 35 00 V 35 00 V 35 4 V 34 6 V 100 mV Div 10 00 V 10 00 V 10 1 V 9 90 V 20 mV Div 2 00 V 2 00 V 2 02 V 1 98 V 20 mV Div 2 00 V 2 00 V 1 98 V 2 02 V 100 mV Div 10 00 V 10 00 V 9 90 V 10 1 V 1 V Div 35 00 V 35 00 V 34 6 V 35 4 V 9 In the Channel menu set the V Div range and offset per the first line of the table Set the power supply per the first line of the table 10 On the oscilloscope select RUN REPETITIVE and wait approximately 15 seconds averaging complete then STOP 11 Read the voltage from the markers voltage field It should be within the limits given in the table
33. ale DC Offset Accuracy 1 0 of channel offset 2 0 of full scale Voltage Measurement Accuracy 5 1 5 of full scale offset accuracy 0 008 x V div Trigger Sensitivity dc to 50 MHz 0 063 x full scale 50 to 250 MHz 0 125 x full scale Input Coupling 1 ac and dc 50 dc only Input R selectable 1 1 50 0 1 Input Approximately 7 NOTES Specifications valid within 10 of auto calibration temperature excluding bandwidth see note 1 for bandwidth specification 1 Upper bandwidth reduces by 2 5 MHz for every degree C above 35 C 0 35 bandwidth 3 Specification applies to the maximum sampling rate At lower rates the specification is t 0 005 x At 2 x 108 x delay setting 0 15 x sample interval for bandwidth limited signals 2 Rise time is calculated from the formula t tr 1 4 x sample interval Sample interval is defined as sample rate 4 Vertical gain accuracy decreases 0 08 per degree C from software calibration temperature 5 Digitizing level ft vertical divisions AN 9 where LSB 2 bits in ADO 6 The Time Interval Measurement Accuracy deteriorates across multiple modules connected as one unit with each added module 1 3 16532 General Information Table 1 2 HP 16532A Operating Characteristics HP 16532A OPERATING CHARACTERISTICS VERTICAL at BNC Vertical Sensitivity Range 1 1 Probe 4 mV div to 10 V
34. ance Tests Table 3 1 Performance Test Record Continued Paragraph No Test Results 3 9 Voltage Measurement Accuracy Channel 2 continued Upper Limit Lower Limit Zero Input Measured Actual 13 7V 14 3V V 3 43V 3 57V 1 3 V 1 43V V 137 0mV 143 0mV mV 143 0mV 137 OmV mV 43V 3 V 3 57 3 43V 4 3 3 7V 3 10 Offset Accuracy V Div Setting Reading Actual Zero input Offset Channel 1 AV Div 0 00Vt 320 OmV V 1V Div 0 00V 80 0mV V 100mV Div 0 00Vt 8 0mV 10mV Div 0 00V 800 0u V V Offset Accuracy Supply Min Max Actual DC Input Offset Channel 1 35 00V 35 4V 34 6V V 10 00V 10 1V 9 90V V 2 00V 2 02V 1 98V 2 00V 1 98V 2 02V 10 00V 9 90 10 1V 35 00V 34 6V 35 4V Offset Accuracy V Div Setting Reading Actual Zero input Offset Channel 2 AV Div 0 00V 320 OmV V 1V Div 0 00V 80 0mV V 100mV Div 0 00Vt 8 0mV V 10mV Div 0 00 800 0u V V Offset Accuracy Supply Min Max Actual DC Input Offset Channel 2 35 00V 35 4V 34 6V V 10 00V 10 1V 9 90V E V 2 00V 2 02V 1 98V 2 00 1 98V 2 02 10 00V 9 90 10 1V 35 00V 34 6V 35 4V 3 11 Bandwidth Channel 1 lt 3 0dB Actual Reading dB Channel 2 Actual Reading dB 16532A Performance Tests Table 3 1 Performance Test Record Continued Paragraph No Test Results 3
35. annel separately except channel 1 of the master board and Ext Trig Null for the external trigger ECL Calibrate Vert Cal of the Self Cal menu as follows 1 Connect two 50 0 9 inch cables to the BNC tee adapter Note When you touch Start the instrument will you to connect the cables to the appropriate locations on the rear panel of the module 2 Touch the Mode field then select Self Cal from the pop up menu 3 Touch the Procedure field then select Vert Cal from the pop up menu 4 Touch the Channel field then select a channel choice from the pop up menu 5 Touch the Start field and follow the instructions on the display 6 After completion of vertical calibration remove the cables from the rear panel of the oscilloscope Calibrate Delay of the Self Cal menu as follows 1 Obtain 50 0 9 inch cable Note When you touch Start the instrument will prompt you to connect the cable to the appropriate location on the rear panel of the module 2 Touch the Procedure field then select Delay from the pop up menu 4 5 16532 Calibration 3 Touch the Channel field then select 1 from the pop up menu where S is the slot letter where the oscilloscope module is installed in the mainframe 4 Touch the Start field and follow the instructions on the display 5 After completion of channel 1 delay calibration remove the cable from the rear panel of the oscilloscope 6 Repeat steps 3 t
36. calibration protection PROTECT UNPROTECT switch With the switch in the PROTECT position calibration values cannot be changed 4 1 16532 Calibration To run the scope calibration the switch must be in the position When you have more than one HP 16532A board in mainframe this must be done for each one of the boards After calibration is complete all the switches must be set to the PROTECT position to save the calibration values Also all the modules or filler panels must be reinstalled in the mainframe then seal should be placed on the equipment such that the seal touches both the top most module and the mainframe This is done to assure that calibration integrity is maintained 4 6 Recommended Test Equipment The only test equipment required for calibration are cables and adapters These are listed in paragraph 4 10 and are called out in the applicable calibration procedure 4 7 Instrument Warmup Calibrate the oscilloscope module at its environmental ambient temperature after 30 minute warmup period of the HP 16500 16501 mainframe with the module installed 4 8 Calibration This section provides software calibration procedures for the HP 16532A oscilloscope module There are no hardware adjustments on the oscilloscope module The calibration is performed without access to the interior of the instrument When ordered with system oscilloscope modules are calibrated at
37. ced or if the card slot configuration is changed HP 16532 Calibration SECTION IV Calibration oscilloscope software changes revision number and asterisks are on the calibra tion menu e Ambient temperature changes more than 10 If you add or delete card s from calibrated multicard oscilloscope module you must perform the Time Null calibration 4 4 Maintaining System Integrity Calibration factors depend on the mainframe module and module configuration all staying together If oscilloscope modules are interchanged between mainframes or the oscilloscope module slot configuration is changed calibration must be repeated In an environment in which the possibility of sharing oscilloscope modules exists Hewlett Packard recommends taking the following precautions in order to maintain system integrity With the system turned off place the PROTECT UNPROTECT switch all switches in a single or a chained multiple oscilloscope module configuration in the UNPROTECT position Boot the system and perform calibration for each module Turn off the system place the PROTECT UNPROTECT switch all switches in a single or a chained multiple oscilloscope module configuration in the PROTECT position then seal the mainframe 4 5 Calibration Protection Switch Each HP 16532A board stores the calibration factors for that board in non volatile RAM on the board itself The HP 16532A board contains a
38. cilloscope module and install the attenuators on the replacement oscillo scope module refer to paragraph 6 11 9 Reinstall the repaired or replacement oscilloscope module in the mainframe refer to the next pro cedure Oscilloscope Module Replacement Procedure Oscilloscope Module Replacement Procedure 1 If you have not already done so pull the installed boards half way out of the card slots refer to steps 1 through 3 of the preceding procedure Oscilloscope Module Removal 2 Determine which modules you want to install in the mainframe and the slots where you want them installed 3 Starting with the bottom slot slide each module to be installed approximately halfway into the main frame card slot 4 Firmly seat the bottom card into the backplane connector Keep applying pressure to the center of the card endplate while tightening the thumb screws finger tight 5 Repeat step 4 for all cards and filler panels in a bottom to top order See figure 6 12 NEXT 2 HIGHEST BOTTOM CARD 16530 15 Figure 6 12 Endplate Overlap Bottom Sequence 6 Any filler panels that are not used should be kept for future use Filler panels must be installed in all unused card slots for correct air circulation 16532 Service 6 10 Trigger Cable Removal and Replacement CAUTION The effects of ELECTROSTATIC DISCHARGE can damage el
39. design manufacture and intended use of this module Hewlett Packard assumes no liability for the failure of the customer to comply with these safety requirements 1 1 16532 General Information 1 4 Product Description The HP 16532A Oscilloscope Module is a 1 GSa s digitizing oscilloscope Some of the main features are 1 GSa s digitizing for 250 MHz bandwidth sin gle shot analysis 8000 samples per channel Automatic pulse parameters displays time be tween markers acquires until specified time between markers is captured performs statis tical analysis on time between markers e Lightweight miniprobes 1 5 Accessories Supplied The following accessories are supplied with the HP 16532A Oscilloscope module Quantity one unless shown otherwise e User s Reference and Programming Refer ence set e Service Guide HP 10441A 10 1 probes Qty 2 Right angle adapters Qty 2 e BNC miniprobe adapter Master slave trigger cable Operating System Software 1 6 Accessories Available 10 1 100 1 50 10 pf resistive divider probe set 1 2 m HP 10020A BNC to BNC cable 1 2 m HP 10503A 1 2 e 24 pin IC test clip HP 102114 e BNC to BNC ac coupling capacitor HP 10240B 10 1 Probe e 1 7 5 pf miniprobe 1 m HP 10435A 1 1 Probes e 40 pf miniprobe 1 m HP 10438A 64 pf miniprobe 2 m HP 104394 50 0 miniprobe 2 m HP 104374 100 1
40. dule 2 On the oscilloscope module set the following parameters in the order given Menu Selection Setting Calibration Channel Mode Procedure Signal Coupling Probe Service Calibration Oscillator Output Probe Compensation 1 MQ DC 1 1 3 Inthe Calibration menu select AUTOSCALE 4 Inthe Auto Measure menu verify that the waveform is approximately 0 8 Vp_p at approximately 1000 Hz Record the reading in the performance test record 3 3 16532 Performance Tests 3 8 INPUT RESISTANCE This test verifies the input resistance of the oscilloscope module A four wire measurement is used for ac curacy at 50 Specification 1MQ 1 and 500 1 Equipment Required The following equipment is required for the test Procedures are based on the model or part numbers rec ommended Equipment Required Critical Specification Recommended Model Part Number Digital Multimeter Measure resistance 4 wire better than 0 25 HP 3458A accuracy Cables 2 50 m to m 48 inch 10503A Adapter 50 BNC Tee m f f 1250 0781 Adapters 2 50 f to Dual Banana Plug HP 1251 2277 Procedure 1 Set up the multimeter to make a 4 wire resistance measurement 2 Use the adapters to connect one end of each cable to the 4 wire resistance connections on the multimeter and connect the fre
41. e and channel offset such that a simulated acquisition obtains data in the extremes and middle of the quantization range of the A D convertor After each simulated acquisition the data is compared with known values D A Test This test verifies the correct operation of the D A convertor on each board Both the offset and trigger level D A convertors for each channel are set to a reference level and then changed The logic trigger IC is programmed to detect the changes The detection of a correct trigger indicates that the D A convertor is operating normally Trigger Test This test verifies the correct operation of the trigger components on each board First the logic trigger memory is checked by writing and then reading known patterns The logic qualifiers logic trigger output and trigger holdoff are checked IMB Test This test verifies the correct operation of the oscilloscope card interface to the intermodule bus All Tests This will automatically execute each test one at a time until all tests are done 16532 Service 6 8 Troubleshooting The troubleshooting flow chart given in figure 6 10 will isolate module failures to card level only It is not intended for component level troubleshooting If self tests indicate a failure begin at the Start of the trou bleshooting flow chart When a specific test fails you will be instructed to replace a faulty card or you will be referred to other flow charts for the isolation of th
42. e ends of the cables to the BNC Tee 3 Connect the male end of the BNC tee to the channel 1 input of the oscilloscope module Set up the oscilloscope module according to the following parameters in the order given Menu Selection Setting Channel Trigger Input Probe V Div Offset Coupling Mode 1 1 1 20 mV OV 500 DC Immediate 3 4 10 11 16532 Performance Tests Select RUN SINGLE The clicking of attenuator relays should be audible Verify resistance read ings on the digital multimeter of 50 Q 0 5 49 5 to 50 5 Q In the Channel menu change the Coupling field to 1 MQ DC Select RUN The clicking of attenuator relays should be audible Verify resistance readings on the digital multimeter of 1 MO 10 0 990 to 1 010 In the Channel menu change the Coupling field to 50 O DC and V Div to 200 mV Div Repeat steps 4 through 6 In the Channel menu change the Coupling field to 50 DC and V Div to 1 V Div Repeat steps 4 through 6 In the Channel menu change the Coupling field to 50 and V Div to 4 V Div Repeat steps 4 through 6 Connect the male end of the BNC tee to the channel 2 input of the oscilloscope module Repeat steps 3 through 9 for channel 2 replacing channel 1 with channel 2 where applicable Note If a reading is not within limits then the attenuator for the out of bounds channel should
43. e faulty card or cable The effects of ELECTROSTATIC DISCHARGE can damage electronic compo nents Grounded wriststraps and mats should be used when you perform any kind of service to this instrument or the cards in it Troubleshooting Aids The Calibration menu contains the Service Cal mode that can help you troubleshoot the oscilloscope module When the problem is found and corrected run all of the calibration procedures given in Section IV Calibration If you suspect a fault in the system you can load the system default values to see if the NVRAM parame ters have possibly been corrupted The procedure for loading the default values is given in Section IV un der the heading Loading the Default Calibration Factors If loading the default values does not fix the problem you may want to verify that the system clock is working correctly The procedure to verify the system clock is given below If none of these aids find the problem go to the troubleshooting flow chart to find the problem As stated above when the problem is found and corrected run all of the calibration procedures given in Section IV Calibration 6 10 16532 Service Verifying the System Clock This procedure is provided as a troubleshooting aid to verify that the 100 MHz System Clock oscillator is functioning properly The 100 MHz oscillator is the primary time reference used for all of the acquisition clock periods The test limits provided are th
44. e test limits for the 100 MHz oscillator only If the readings are outside of the test limits the oscilloscope module will not operate properly Recommended Equipment Required Critical Specification Model Part Number Frequency Counter gt 100 MHz 50 Q HP 5315A Option 003 Oscilloscope Bandwidth gt 100 MHz Real Time HP 54502A Cable 50 Q m to m 48 inch HP 10503A Procedure 1 Connect the cable from the CAL OUTPUT connector on the rear panel of the HP 16532 oscilloscope module to the input of the frequency counter 2 On the HP 16532A oscilloscope module set the following parameters in the order given Menu Selection Setting Channel s Div 1ns Trigger Auto Trig Off Calibration Mode Service Cal Procedure Osc Out Signal Sample 3 Select RUN REPETITIVE Observe the frequency displayed on the frequency counter and verify that it is 100 MHz 0 005 4 Disconnect the cable from the frequency counter and connect the cable to the input of the HP 54502A Oscilloscope 6 11 16532 Service 5 On the HP 54502 Oscilloscope set the following parameters the order given Menu Selection Setting Channel Probe 1 000 1 V Div 200 mV Offset 0 0 V Coupling DC Timebase s Div 10 5 Acquisition Realtime Trigger Mode Edge Level 200 mV Slope Falling 6 Inthe HP 16532A Oscilloscope trigger menu se
45. e the BNC to banana adapter to connect the cable between the multimeter and the oscillo scope module DC CAL OUTPUT connector 2 On the oscilloscope module set the following parameters in the order given Menu Selection Setting Calibration Mode Service Calibration Procedure DC Cal BNC DC Volts OV 3 The DVM should read close to 0 0000 V Record the reading to four decimal places Vi 1 4 the Calibration menu set the DC Volts to 5 V 5 The DVM should read close to 5 0000 V Record the reading to four decimal places V2 6 In the Calibration menu set the DC Volts to 0 V 7 Subtract V1 from V2 The difference should be between 4 990 and 5 010 Record the reading in the performance test record 3 2 16532A Performance Tests 3 7 AC CAL OUTPUT Test The AC CAL OUTPUT port on the rear panel is used for instrument calibration and probe compensation Though calibrator accuracy is not specified in the performance specifications it must be within limits in or der to provide accurate calibration Test Limits 1000 Hz 10 0 8 Vp_p 10 Equipment Required The following equipment is required for the test Equipment Required Critical Specification Recommended Model Part Number Cable 50 m to 48 inch HP 10503A Procedure 1 Use the cable to connect the AC CAL OUTPUT to channel 1 input of the oscilloscope mo
46. ectronic nents Use grounded wriststraps and mats when performing any kind of service to this instrument or the cards in it Trigger Cable Removal Procedure 1 Follow the procedures given in paragraph 6 9 Oscilloscope Module Removal and Replacement to remove the HP 16532A Oscilloscope Module to be serviced 2 Remove the hex nut H4 and the washer H5 from the SMB connector on the cable to be removed See figure 6 13 ES QS Qw 16532 02 Figure 6 13 Oscilloscope Module Exploded View 6 20 3 Pull the straight SMB connector on the cable through the hole in the rear panel 4 Pullthe right angle SMB connector on the cable away from its mating connector on the board 5 Install new cable refer to the next paragraph Trigger Cable Replacement Procedure 1 Install the straight SMB connector on the cable through the hole in the rear panel See figure 6 13 2 Attach the washer H5 and the hex nut H4 to the straight SMB connector on the cable Tighten the hex nut 3 Connect the right angle SMB connector on the cable to its mating connector on the board 6 11 Attenuator Removal and Replacement CAUTION The effects of ELECTROSTATIC DISCHARGE can damage electronic nents Use grounded wriststraps and mats when performing any kind of service to this instrument or the cards in it Attenuator Removal Procedure 1 Fol
47. ed when operating the module within the following ranges e Temperature 20 T to 35 68 F to 95 e Humidity 20 to 80 non condensing 2 8 Storage The module may be stored or shipped in environments within the following limits Temperature 40 Cto 75 Humidity Up to 90 at 65 T Altitude Up to 15 300 meters 50 000 feet The module should also be protected from temperature extremes which cause condensation on the instrument 2 4 2 9 Packaging The following general instructions should be used for repacking the module with commercially available materials Wrap the module in antistatic plastic e Use a strong shipping container double walled carton made of 350 test material is adequate e Use a layer of shock absorbing material 70 to 100 mm 3 to 4 inch thick around all sides of the module to provide firm cushioning and to prevent movement within the container e Seal the shipping container securely e Mark the shipping container FRAGILE to en sure proper handling e correspondence refer to the module by its model number and serial number 2 10 Tagging for Service If the module is to be shipped to Hewlett Packard sales office for service or repair attach a tag showing owner with address complete serial number and description of the service required TABLE OF CONTENTS Performance Tests 9 15
48. ements 2 6 Module Installation CAUTION Do not install remove or replace the module in the instrument unless the instrument power is turned off The HP 16532A Oscilloscope Module will take up one slot inthe card cage For every additional HP 16532A Oscilloscope Module you install you will need an additional slot They may be installed in any slot and in any order The installation procedure for the module is continued step by step on the next page 2 1 16532A Installation Module Installation cont The effects of ELECTROSTATIC DISCHARGE can damage electronic nents Use grounded wrist straps and mats when you are performing any kind of service to this module Installation Considerations The HP 16532A Oscilloscope Modules can be installed in any available card slot For multiple modules connected as one unit the master card must be placed in the slot above the expander cards The master card and expander cards must be in adjoining slots Cards or filler panels below the empty slots intended for module installation do not have to be re moved to install a module above them Procedure 1 Turn instrument power switch off unplug power cord and disconnect any input connections 2 Starting from the top loosen the thumb screws on the filler panels and cards 3 Starting from the top begin pulling out the cards and filler panels halfway See figure 2 1 if TOP CARD 31
49. er 50 Q BNC f to Dual Banana Plug HP 1251 2277 P Adapter 50 Q N m to BNC f HP 1250 0780 P Tee Adapter 50 m f f 1250 0781 Cable Type N m to m 24 inch HP 11500B P Cable 50 Q BNC 48 inch 10503 Cable 50 Q BNC m to m 9 inch HP 10502A C Cable 50 BNC SMB 16532 61601 P Performance Tests C Calibrations 1 9 TABLE OF CONTENTS Installation 2 1 Introduction er in 2 1 2 2 Initial Inspection titm Eee ete e ia idad 2 1 2 3 Preparation for Use iii 2 1 2 4 Power Requirements iii 2 1 2 5 Safety 22 avd nas 2 1 2 6 Module Installation e antenne NG eee e Ed Bahn 2 1 2 7 Operating Environment 2 4 2 8 NN 2 4 2 9 Packaging vu a hd SOR D Pe tue Du 2 4 2 10 Tagging for id t tee t ei ed d i tee eet ds 2 4 2 1 Introduction This section explains how to initially inspect the HP 16532A Oscilloscope Module then how to prepare it for use storage and shipment Also included are procedures for module installation 2 2 Initial Inspection Inspect the shipping container for damage If the shipping container or cushioning material is damaged it should be kept until the contents of the shipment have been checked for completeness and the module has been checked mechanically and electrically The contents of the shipment should be as listed in the Accessories Supplied paragra
50. ernal trigger count adjustable from 1 to 32 000 Duration time range is adjustable from 20 ns to 160 ms in 10 ns steps Duration accuracy is approximately 3 2ns If enabled the module will self trigger if no trigger condition is found within approximately 50 ms after arming The trigger can be set to occur on the nth edge or pattern as specified by the user The number of events n can be set from 1 to 32 000 events Maximum count frequency is 70 MHz Arms another measurement module or triggers the rear panel BNG If enabled the oscilloscope will trigger on an ECL level signal 1 3 V Resolution 8 bits 1 part in 256 Digitizing Rate Up to 1 Gigasample per second Digitizing Technique Real time digitizing each 8000 samples are acquired on single acquisition Acquisition Memory Size 8000 samples per channel 1 5 16532 General Information Table 1 2 HP 16532A Operating Characteristics cont WAVEFORM DISPLAY Displayed Waveforms Eight waveform windows maximum with scrolling across 96 waveforms Display Formats Waveforms can be displayed in an overlapping and or non overlapping format Display capability of A and A Bis also provided Display Resolution 500 points horizontal 240 points vertical DISPLAY MODES Normal Single New acquisition replaces old acquisition on screen Accumulate New acquisition is displayed in addition to previous acquisitions unti
51. est System Screen 16532 Service Self Test Descriptions The following self tests check the major components of the HP 16532A oscilloscope module as well as all associated circuitry When the self tests have all been completed with PASS status the major data and control pipelines in the HP 16532A oscilloscope module are functioning properly Data Memory Test This test verifies the correct operation of the FISO fast in slow out data memory on each board Test patterns are written into the memory and then read and compared with known values Timebase Test The pre trigger and post trigger delay modes are first tested by programming a predetermined time interval in the trigger counters At the end of the time intervals the arm trigger and run status bits are read and compared with known values The coarse and fine interpolators are then checked by reading the values of the interpolator counters after a simulated acquisition The counter values are then com pared with a known value Finally the sample clock is checked by programming a sample clock frequency and then reading the status of the clock to detect when one clock period has elapsed The clock period time interval is then compared with a known value A D Test This test verifies the correct operation of the A D convertor on each board A check of the trigger in Trigger Immediate mode is first made The A D convertors are then exercised by setting the reference voltag
52. hannel 1 is not inserted insert channel 1 Set the following parameters Menu Selection Setting Channel Trigger Display Input Probe v Div Offset Coupling s Div Mode Level Mode Markers 1 1 1 80 mV OV 50 Q DC 200 ns Edge OV Average 32 On Off 3 11 16532 Performance Tests 4 Set the signal generator for 1MHz at 2 4 dBm On the oscilloscope select RUN REPETITIVE The signal on the screen should be two cycles at three divisions amplitude 5 After the measurement settles averaging complete about 15 seconds select STOP In the Auto Measure menu note the Vp p reading VimHz 6 Set the power meter Cal Factor to the 1MHz value from the calibration chart on the power splitter Then press dB REF to set a 0 dB reference 7 Change the signal generator to 250 MHz Set power meter Cal Factor to the 250 MHz value from the chart 8 Adjust the signal generator amplitude for a power reading as close as possible to 0 0 dB REL Reading dB 9 Set the oscilloscope s Div for 2 ns Div and select RUN REPETITIVE 10 After the measurement settles averaging complete select STOP In the Auto Measure menu note the Vp p reading V250MHz _ 11 Calculate the response using the formula response dB 20 logo 250Mhz _ 2010910 dB Vi MHz 12 Correct the result from step 11 with any differences the power meter from
53. harged even if the instrument has been disconnected from its source of supply marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect against damage to the product SAFETY SYMBOLS Instruction manual symbol The product will be Indicates hazardous voltages Earth terminal sometimes used in manual to in dicate circuit common connected to grounded chassis calls attention to procedure practice or the like which if not correctly per formed or adhered to could result in personal injury Do not proceed beyond WARNING sign until the indicated condi tions are fully understood and met calls attention to an operating procedure practice or the like which if not cor rectly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed be yond CAUTION sign until the indicated conditions are fully understood or met The WARNING sign denotes a hazard It The CAUTION sign denotes a hazard I SC1D984 16532A Table of Contents CONTENTS SECTION I General Information gt MAtOdUEHO tidad ee t re 1 1 1 2 Module Covered by This Manual iii 1 1 1 3 Safety RequireMents 1 2 iaa bea 1 1 1 4 Product Description cerei san De na anne 1 2 1 5 Accessories Supplied sia decade il 1 2 1 6 Accessories Available ss 1 2 def Specificati
54. he trigger point The time base has counters to control how much data is taken before pre trigger data and after post trigger data the trigger event After the desired number of pre trigger samples has occurred the Time base hybrid sends a signal to the Logic Trigger trigger arm indicating it is ready for the trigger event When the trigger condition is satisfied the Logic Trigger sends signal back to the time base hybrid The time base hybrid then starts the post trigger delay counter HP 16532A Service When the countdown reaches zero the sample clocks are stopped and the CPU is signaled that the acquisition is complete The Fine Interpolator dual slope integrator that acts as time interval stretcher When the logic trigger receives a signal that meets the programmed triggering requirements it signals the time base The time base then sends a pulse to the fine interpolator The pulse is equal in width to the time between the trigger and the next sample clock The fine interpolator stretches this time by a factor of approximately 500 Meanwhile the time base hybrid runs a counter with a clock derived from the sample rate oscillator When the interpolator indicates the stretch is complete the counter is stopped The count represents with much higher accuracy the time between the trigger and the first sample clock The count is stored and used to place the recently acquired data in relationship with previous data
55. hrough 5 for channel 52 7 After completing all of the channel delay calibrations remove the cable from the rear panel of the oscilloscope Calibrate the Time Null of the Self Cal menu as follows 1 Connect two 50 0 9 inch cables to the BNC tee adapter Note When you touch Start the instrument will you to connect the cables to the appropriate locations on the rear panel of the module 2 Touch the Procedure field then select Time Null from the pop up menu 3 Touch the Channel field then select 2 from the pop up menu where S is the slot letter where the oscilloscope module is installed in the mainframe 4 Touch the Start field and follow the instructions on the display 5 Repeat steps 3 through 4 for each channel replacing 82 with the appropriate channel number 6 At the conclusion of the time null calibration remove the cables from the rear of the module Calibrate the Logic Trigger of the Self Cal menu as follows 1 Obtain one BNC 50 Q 9 inch cable Note When you touch Start the instrument will prompt you to connect the cables to the appropriate locations on the rear panel of the module 2 Touch the Procedure field then select Logic Trigger from the pop up menu 3 Touch the Start field then follow the instructions on the display 4 At the conclusion of the Logic Trigger calibration remove the cable from the rear of the module 4 6 16532 Calibration Calibrate the Ext Trig
56. is available in the menu or by touching either the Mode or Procedure fields if the continue field is still displayed on the screen 4 Touch the Start field and follow the instructions on the display The display should now look similar to the display shown in figure 4 3 1 GSa s Scope D Calibration Autoscale Print Mode Procedure Service Cal Default Values continue ch 1 ch 2 ext elay Time Ext Trig Null D passed F failed defaulted corrupted prefixed by if software revision without re cal Figure 4 3 Default Calibration Display 4 4 16532 Calibration 4 12 Self Cal Menu Calibrations Note After you touch the Start field you can abort the calibration procedure either by touching the Cancel field if it is available in the menu or by touching either the Mode or Procedure fields if the continue field is still displayed on the screen Messages will be displayed as each calibration routine is completed to indicate calibration has passed or failed The resulting calibration factors are automatically stored to nonvolatile RAM at the conclusion of each calibration routine The Self Cal menu lets you calibrate vertical sensitivity Vert Cal for channels 1 and 2 individually or both channels board simultaneously if it is stand alone scope Also the Self Cal menu lets you cali brate delay Delay for channel 1 and 2 separately then Time Null for each ch
57. issipation picofarads plug in plate d programmable logic array plastic positive negative positive polyester positive position potentiometer pozidrive peak to peak parts per million precision preamplifier programmable parallel programmable position point potted wirewound power reset set random access memory rectifier retainer radio frequency regulator register rac root mean square RND ROM RPG SCR SEC SEG SEL SGL SHF SI SIP SKT SL SLDR SLT SOLD SPCL sa SREG SRQ STAT STD SYNCHRO TA TBAX TC TD THD THK THRU TP TPG TPL TRANS TRIG TRMR UL UNREG VA VAC VAR VCO VDC VERT VF VS W W O XSTR ZNR oC oF oK integrated circuit microcircuit electron tube glow lamp voltage regulator breakdown diode cable socket crystal unit piezo electric or quartz Round read only memory rotary pulse generator receiver Schottky clamped seconds time screwssilicon controlled rectifier second time secon dary segment selector single shift silicon single in line package skirt slide solder slot ted solenoid special square shift register service request static standard synchronous tantalum tubeaxial temperature coefficient time delay thread ed thick
58. itch to the UNPROTECT position See Figure 4 2 to locate this switch D UNPROTECT Figure 4 2 Location of the PROTECT UNPROTECT Switch 3 Repeat step 2 for every oscilloscope module if this is a multimodule calibration 4 Reinstall the modules and filler panels in reverse order of steps 1 and 2 4 8 16532 Calibration 4 10 Equipment Required for Calibration The equipment listed below is required for calibration Cable 2 500 9 inch equal length 10502 Cable 500 SMB HP 16532 61601 Adapter 500 BNC tee f f HP 1250 0781 Adapter 500 m m 1250 1236 4 11 Loading the Default Calibration Factors CAUTION Once the default calibration factors are loaded all calibrations must be done This includes all of the calibrations in the Self Cal menu The calibration must be performed in the exact sequence listed in table 4 1 Note The calibration switch on the oscilloscope board must be set to UNPROTECT Load the default calibration factors as follows 1 Touch the menu field top row second from the left then select Calibration from the pop up menu 2 Touch the Mode field then select Service Cal from the pop up menu 3 Touch the Procedure field then select Default Values from the pop up menu Note After you touch the Start field you can abort the calibration procedure either by touching the Cancel field if it
59. ive For warranty service or repair this product must be returned to a service facility designated by HP Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer However Buyer shall pay all shipping charges duties and taxes for products returned to HP from another country HP warrants that its software and firmware designated by HP for use with an instrument will execute its pro gramming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer buyer supplied software or interfacing unauthorized modification or misuse operation outside the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFICALLY DISCLAIMS THE IMPLIED WAR RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HP SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY ASSISTANCE Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard p
60. l screen is erased Average New acquisitions are averaged with old acquisitions with the updated waveform displayed until erased Maximum number of averages is 256 Overlay Up to 8 acquired waveforms from separate channels can be overlayed in the same display area Connect the dots Provides display of the sample points connected by straight lines Waveform Reconstruction When there is insufficient data to fill every horizontal location a post acquisition reconstruction filter fills in missing data points for time lt 50 ns div Waveform Math Display capability of A B and A B functions is provided 1 6 HP 16532 General Information Table 1 2 HP 16532A Operating Characteristics cont MEASUREMENT AIDS Time Markers Two vertical markers X and O are provided for measurements of time and voltage Capabilities are measure voltage at point where X and O markers cross each analog waveform measure time from trigger to X trigger to O and X to O automatic marker placement by specifying percentage of edge edge number and rising or falling edge type run until Xto O gt than lt than range and not in range provides selective event search X to O statistics mean max and min provide analysis of time interval deviation Automatic Search Searches for a percentage or an absolute voltage level at a positive or negative edge count adjustable from 1 to 100 Auto Search S
61. lap Top Sequence iii 4 8 5 1 0 PartsildentifiGatioh Ee ene Dee nn nai 5 4 6 1 HP 16532A Oscilloscope Block Diagram 6 2 6 2 Startup Screen vanes pundet A 6 4 6 3 1Load T st System SCIGOn zeit t ete ee Ege te be Ec e mn 6 5 6 4 Test System Screen iii 6 5 6 5 Functional Tests 6 6 6 6 Main Test Menu neret Peed te Re dede nee re EE e tee ee a a 6 6 6 7 AD Test Sere ncs n e noe A 6 7 658 Stop Eleld da O 6 7 6 9 Exit Test System Screen iii 6 8 6 10 Troubleshooting Flowchart ss 6 13 6 11 Endplate Overlap Top 58 8 66 6 18 6 12 Endplate Overlap Bottom 6 19 6 13 Oscilloscope Module Exploded View 6 20 vii TABLE OF CONTENTS General Information 1512 Introductions ai 1 1 1 2 Module Covered by Manual iii 1 1 1 3 Safety 199 8 8 1 1 1 4 Product Descriptio aii A diei 1 2 1 5 ACC sSorles Supplied eae lin i oe 1 2 1 6 Accessories Avallable 2 ope n ree e lode oe dette tao tete MAN ES 1 2 1 75 SPSCHICAUONS reds 1 2 1 8 Operating Characteristics siens 1 2 1 9 Recommended Test
62. le Block Diagram and Theory of Operation 6 1 6 5 Attenuator Theory of Operation is 6 1 6 6 Main Assembly Theory of Operation 6 1 6 7 Salf Tests ie anesthetic uei uibs 6 4 6 8 Troubleshooting urere Ande ieee de 6 10 6 9 Oscilloscope Module Removal and Replacement 6 18 6 10 Trigger Cable Removal and Replacement ss 6 20 6 11 Attenuator Removal and Replacement 6 21 vi 16532 Table of Contents LIST OF TABLES TABLE TITLE PAGE 1 1 HP 16532A Specifications 0 en 1 3 1 2 HP 16532A Operating Characteristics essen 1 4 1 3 Recommended Test Equipment sisi 1 9 3 1 Performance Test Record ss 3 17 4 1 Calibration Sequence 4 2 5 1 Reference Designator and Abbreviations iiien 5 3 5 2 Replaceable Parts Elster ee diete eom 5 5 LIST OF FIGURES FIGURE TITLE PAGE 2 1 Endplate Overlap Top 2 2 2 2 Endplate Overlap Bottom 2 3 3 1 Voltage Measurement Accuracy Test 3 7 4 1 Endplate Overlap Top 4 3 4 2 Location of the PROTECT UNPROTECT Switch 4 3 4 3 Default Calibration Display sise 4 4 4 4 Ext Trig Null Calibration Connections ss 4 7 4 5 End of Calibration Display sisi 4 8 4 6 Endplate Over
63. lect Auto Trig On Verify that the 100 MHz System Clock is gated 7 Select STOP on both the HP 54502A and HP 16532A oscilloscopes 8 Disconnect the cable from both oscilloscopes 6 12 FROM TROUBLESHOOT ING SHEETS 2 3 4 5 FROM TROUBLESHOOT ING SHEET 3 16532808 Ho HP 16532A Service Troubleshooting Sheet 1 NOTE 1 SWAP PROBES CABLES AS NEEDED BAD PROBE OR CABLE SEE NOTE 1 2 REPLACE PROBE OR CABLE DONE ARE ALL MODULE GO TO CARDS PRESENT ON CONF IGURAT ION SCREEN CAN GO TO YOU VERIFY TROUBLESHOOT ING A USER PROBLEM SHEET 4 ATTEMPT CALIBRATION SEE NOTE 2 NOTE 2 REFER TO SECTION TV FOR CALIBRATION PROCEDURES IS DO ALL CALIBRATION pace NO STEPS RUN OK 2 i 2 GO TO NO TROUBLESHOOTING SHEET 4 Y LOAD TEST SOFTWARE Y RUN MAINFRAME SELF TESTS DO IS MAINFRAME PROBLEM NO SELF TESTS m STILL RUN OK PRESENT GO TO TROUBLESHOOTING SHEET 4 ES GO TO TROUBLESHOOTING SHEET 2 Figure 6 10 Troubleshooting Flowchart 6 13 16532 Service Troubleshooting Sheet 2 FROM TROUBLESHOOTING SHEET 1 NOTE 3 OSCILLOSCOPE RUN OSCILLOSCOPE SELF TESTS MAY BE RUN SELF TEST INDIVIDUA
64. low the procedures given in paragraph 6 9 Oscilloscope Module Removal and Replacement to remove the HP 16532A Oscilloscope Module to be serviced 2 Remove the four hex nuts H3 from the BNG connectors on the rear panel MP1 See figure 6 13 3 Remove the two hex nuts H4 and the two washers H5 from the SMB connectors on the rear panel 4 Remove the three end plate screws H6 holding the rear panel MP1 and the ground spring MP2 to the board assembly 1 5 Pull the rear panel MP1 and the ground spring MP2 from the board assembly A1 You may need to loosen the attenuator retainer screws H7 before removing the ground spring 6 Remove the two attenuator retainer screws H7 holding the attenuator assembly A2 to the board assembly 7 pull the attenuator assembly A2 straight up from the board assembly being careful not to damage the connector and the components beneath the attenuator assembly 8 Install a new attenuator assembly refer to the next paragraph Attenuator Replacement Procedure 16532 Service Attenuator Replacement Procedure 6 22 Gently push the attenuator assembly 2 straight down on the board assembly A1 being careful not to damage the connector and the components beneath the attenuator assembly See figure 6 13 Attach the attenuator assembly A2 to the board assembly A1 with the two attenuator retainer screws 7 Assemble the
65. mits HP 16532 Performance Tests SECTION Performance Tests The results recorded on the test record may be used for comparison in periodic maintenance and troubleshooting or after repairs and adjustments have been made 3 4 Performance Test Interval Periodic performance verification of the HP 16532A Oscilloscope Module is required at one year intervals The instrument s performance should be verified after it has been serviced or if improper operation is suspected Calibration should be performed before any performance verification checks 3 5 Performance Test Procedures All performance tests should be performed at the environmental operating temperature of the instrument after a 30 minute warmup period 3 1 16532 Performance Tests 3 6 DC CAL OUTPUT Test The CAL OUTPUT port on the rear panel is used for instrument calibration and probe calibration Though calibrator accuracy is not specified in the performance specifications it must be within limits in or der to provide accurate calibration Test Limits 5 000 V 10 mV Equipment Required The following equipment is required for the test Recommended Equipment Required Critical Specification Model Part Number Digital Multimeter 0 1 mV resolution better than 0 005 accuracy 3458A Cable 50 Q m to m 48 inch HP 10503A Adapter 50 Q BNC f to Dual Banana Plug HP 1251 2277 Procedure 1 Us
66. module Information is included about when to calibrate the module the module warm up interval required prior to calibration and how to do the actual calibration of the module Also included are safety requirements to observe when working on the equipment a list of recommended test equipment and equipment setups for the different calibration procedures Although the module has no hardware adjustments it does contain calibration PROTECT UNPROTECT switch that you use before and after calibration Actual calibration of the module is performed in software 4 2 Safety Requirements WARNING Read the safety summary at the front of this manual before any replacement maintenance or repair is performed Specific warnings cautions and instructions are placed wherever applicable throughout the manual These must be observed during all phases of operation service and repair of the module Failure to comply with them violates safety standards of design manufacture and intended use of this module Hewlett Packard assumes no liability for the failure of the customer to comply with these safety requirements 4 3 Calibration Interval To maintain proper calibration perform calibration at approximately six month intervals or every 1000 hours when the instrument is being used under normal operating conditions Immediate calibration is required if one of the following occurs e Oscilloscope module is installed repaired or repla
67. nel Trigger Display Input Probe v Div Offset Coupling s Div Mode Source Level Mode Average Grid Markers 1 1 1 400 mV OV 50 Q DC 20 ns Edge Chan 1 OV Average 8 On Off 2 With an N to BNC adapter and BNC cable connect the signal generator to channel 1 input 3 15 16532 Performance Tests 10 11 3 16 Set the signal generator for 50 MHz 35 mV rms signal On the oscilloscope module select RUN REPETITIVE In the Auto Measure menu read Vp p Adjust the signal generator output level so that the signal is close to and not more than 100 In the Trigger menu adjust the trigger level for a stable display The test passes if the trigger is sta ble Record whether the trigger is stable or is not stable On the oscilloscope module select STOP Set the signal generator frequency to 250 MHz and 70 mV rms signal level In the Channel menu change s Div to 5 ns Div and select RUN In the Auto Measure menu read Vp p Adjust the signal generator output level so that the signal is close to and not more than 200 mVp p In the Trigger menu adjust the trigger level for a stable display The test passes if the trigger is sta ble Record whether the trigger is stable or is not stable in the performance test record On the oscilloscope module select STOP In the Channel menu select channel 2 In the Trigger menu select Source
68. ons update dae e eia ani inet ape etel aan a e e 1 2 1 8 Operating Characteristics sisi 1 2 1 9 Recommended Test Equipment sisi 1 2 SECTION II Installation 2 Introduction ihn 2 1 2 2 InttialllnSpEcliO Maia 2 1 2535 Preparation or eee 2 1 2 4 Power Requirements 2 1 2 5 Safety Requirements 5 Teen tede sein bete oce 2 1 2 6 Module Installation iii 2 1 2 7 p ep e Ea a a ER ix C nd 2 4 2 8 Storage aiiud ate net diced BOT ee eee nite aan 2 4 2 97 Packaging par ae meer een 2 4 2 10 Tagging for Service 2 4 SECTION Performance Tests 9 1 Introductio Dic aoc EE Ee ERE RENE Hates 3 1 3 2 Recommended Test Equipment iii 3 1 3 3 3 1 3 4 Performance Test Interval iii 3 1 3 5 Performance Test Procedures is 3 1 3 6 DC CAL OUTPUT Test 3 2 AG GAL OUTPUTTESH una 3 3 3 8 Input Resistance Laurie alanerne 3 4 3 9 Voltage Measurement Accuracy iii 3 6 39 10 5 ln Lis 3 9 311 Bandwidth uiuat apunta lp 3 11 3 12 Time Measurement Accuracy 3 13 3 13 Tngger Sensitivity uses tee et rre tede ce ete ao ede ue dee de vete oae ed unte diee da 3 15 16532 Table of
69. ph located in Section I Procedures for checking electrical performance are in Section If the contents of the container are incomplete there is mechanical damage or defect or the instrument does not pass the performance tests notify the nearest Hewlett Packard sales office If the shipping container is damaged or the cushioning material shows signs of stress notify the carrier as well as the Hewlett Packard sales office Keep the shipping material so the carrier can inspect it The Hewlett Packard office will arrange for repair or replacement at Hewlett Packard s option without waiting for claim settlement 2 3 Preparation for Use WARNING Read the Safety Considerations in the front of this manual and in Section I before installing or operating this module HP 16532A Installation SECTION Il Installation 2 4 Power Requirements All power supplies required for operating the 16532A Oscilloscope Module are supplied to the module through the backplane connector in the mainframe 2 5 Safety Requirements Specific warnings cautions and instructions are placed wherever applicable throughout the manual These must be observed during all phases of operation service and repair ofthe module Failure to comply with them violates safety standards of design manufacture and intended use of this module Hewlett Packard assumes no liability for the failure ofthe customer to comply with these safety requir
70. pply value listed in the table Connect the power supply to the channel input as shown in figure 3 1 On the oscilloscope select RUN REPETITIVE and wait for approximately five seconds then select STOP Read the voltage displayed under the channel label on the left of the display Enter this value on the performance test record in the Measured column To obtain the test results subtract the Zero Input voltage from the Measured voltage listed in the performance test record For example Measured Zero Input Actual When calculating the results observe the plus or minus value of the voltage measurements Record the results in the per formance test record in the Actual column Repeat steps 3 through 8 for the second line of the table then for the rest of the lines of the table for channel 1 In the Waveform Selection menu select Input channel 2 Delete channel 1 and insert channel 2 Re peat steps 2 through 8 for channel 2 replacing channel 1 with channel 2 where applicable 16532A Performance Tests 3 10 OFFSET ACCURACY This test verifies the offset accuracy Specification 1 0 of channel offset 2 0 of full scale Equipment Required The following equipment is required for the test Procedures are based on the model or part numbers rec ommended Recommended Equipment Required Critical Specification Model Part Number DC Power Supply 35 000
71. roducts For any assistance contact your nearest Hewlett Packard Sales and Service Office CWA388
72. s module Hewlett Packard assumes no liability for the failure of the customer to comply with these safety requirements 6 3 Recommended Test Equipment Table 1 3 lists recommended test equipment Any equipment that satisfies the critical specification given in the table may be substituted for the recommended models 6 4 Module Block Diagram and The ory of Operation The following paragraphs contain block level theory of operation This theory is not intended for component level troubleshooting rather it is to be used to help isolate a module failure to card level The HP 16532A Oscilloscope Module is contained on one board It runs at a 1 GSa s digitizing rate with a 250 MHz single shot real time bandwidth 8000 samples per measurement per channel with 2 channel simultaneous acquisition which is expandable to up to 8 channels See figure 6 1 HP 16532 Service SECTION VI Service 6 5 Attenuator Theory of Operation The channel signals are conditioned by the attenuator preamps thick film hybrids containing passive attenuators impedance converters and a programmable amplifier The channel sensitivity defaults to the standard 1 2 4 sequence other sensitivities can be set also However the firmware uses passive attenuation of 1 5 25 and 125 with the programmable preamp to cover the entire sensitivity range The input has a selectable 1 MO input impedance with ac or dc coupling or a 500 input impedance with
73. step 8 Observe signs For example Result from step 11 2 3 dB Power meter reading 0 2 dB REL then true response 2 3 0 2 2 1dB dB 13 The result from step 12 should be lt 3 0 dB Record the result in the Performance Test Record 14 In the Channel menu select channel 2 In the Waveform Selection menu delete channel 1 and insert channel 2 15 Repeat steps 2 through 14 for channel 2 replacing channel 1 with channel 2 where applicable Note Failure of the bandwidth test can be caused by a faulty attenuator or main assembly 3 12 3 12 TIME MEASUREMENT ACCURACY This test uses precise frequency source to check the accuracy of time measurement functions Specification 0 005 x At 2 x 107 9x delay setting 150 ps Equipment Required HP 16532A Performance Tests The following equipment is required for this test Procedures are based on the model or part number rec ommended Equipment Required Critical Specification Recommended Model Part Number Signal Generator 200 MHz timebase accuracy 0 25 ppm HP 8656B Opt 001 Cable 50 Q m to m 48 inch HP 10503A Adapter 50 to f 1250 0780 1 Set the signal generator to 181 81818 MHz 5 5 ns period and approximately 600 mV rms 2 Use the N to BNC adapter to connect the cable to the signal generator Connec
74. t the free end of the cable to the channel 1 input 3 In the Waveform Selection menu delete channel 2 If channel 1 is not inserted insert channel 1 Set the following parameters in the order given Menu Selection Setting Channel Trigger Display Input Probe v Div Offset Coupling s Div Mode Source Level Slope Mode Grid 0 0 V Positive Normal On 3 13 16532 Performance Tests 4 Select the Markers Auto menu and set the following parameters Menu Selection Setting Markers Auto X gt O gt Statistics Set on chan 1 at Level 50 Slope Positive Occur 1 Set on chan 1 at Level 50 Slope Positive Occur 2 On 5 Select DONE On the oscilloscope module select RUN REPETITIVE If the waveform is clipping reduce the signal generator output voltage level until the waveform no longer clips Allow the oscil loscope module to run approximately two minutes then select STOP 6 In the statistics field check to see that the MEAN X O field is approximately 5 500 ns Check that both the MIN X O and the MAX X O are within 150 ps of the MEAN X O Record the results in the performance test record 7 Select the Markers Auto menu and set the following parameters Menu Selection Setting Markers Auto X gt Statistics Manual Set on chan 1 at Level 50 Slope Positive Occ
75. ta is buffered onto the CPU data bus for processing Triggering There are two main trigger circuits that trigger four trigger sources The two trigger circuits are the analog trigger and the logic trigger The analog trigger IC operates as multichannel Schmidt trigger comparator Atrigger signal a copy of the analog input signal from each of the inputs is directed to the analog trigger IC inputs The trigger signal is continuously compared with the trigger reference level selected by the user Once the trigger condition is met the trigger TRUE signal is fed to the logic trigger which begins the acquisition and store functions by way of the time base The four trigger sources are Channel 1 Channel 2 Intermodule Bus IMB and external The operation of the input channels was discussed previously The IMB trigger signal is sent directly to the logic trigger External triggering is provided by the input of the 16500A Logic Analysis System mainframe Time Base The time base provides the sample clocks and timing necessary for data acquisition consists of the 100 MHz reference oscillator and time base hybrid The 100 MHz reference oscillator provides the base sample frequency The time base hybrid has programmable dividers to provide the rest of the sample frequencies appropriate for the time range selected The time base uses the time stretched output of the fine interpolator to time reference the sampling to t
76. tatistics Mean maximum and minimum values for elapsed time from X to O markers for multiple runs Number of valid runs and total number of runs available Automatic Measurements The following pulse parameter measurements can be performed automatically Frequency Rise time pulse width Period Fall time pulse width Vp p Preshoot V amplitude Overshoot gives difference between top and base voltages only available over bus Grid Graticules can be displayed in backround of waveform Voltage Markers Two horizontal markers A and B are provided for voltage measurements These markers can each be placed on any acquisition channel trace A delta voltage display provides delta V between markers on the same channel or between two channels 16532 General Information Table 1 2 HP 16532A Operating Characteristics cont SETUP AIDS Autoscale Presets Calibration Autoscales the vertical and horizontal ranges offset and trigger level to display the input signals Requires a frequency between 50 Hz and 250 MHz Scales the vertical range offset and trigger level to predetermined values for displaying ECL or TTL waveforms Vertical trigger delay and all defaults Calibration factors stored in NV RAM on the circuit board Probe Compensation Source External supplies square wave approximately 0 0 mV to 800 mV into the open circuit at approximately 1000 Hz OPERATING
77. tion make sure the common ter minal is connected to the earth terminal of the power source e interruption of the protective grounding conductor inside or outside the instrument or disconnecting the pro tective earth terminal will cause a potential shock hazard that could result in personal injury e Whenever it is likely that the protection has been im paired the instrument must be made inoperative and be secured against any unintended operation e Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired fuses or short circuited fuse holders To do so could cause a shock or fire hazard Do not operate the instrument in the presence of flamma ble gasses or fumes Operation of any electrical instru ment in such an environment constitutes a definite safety hazard e Do not install substitute parts or perform any unauthorized modification to the instrument e Adjustments described in the manual are performed with power supplied to the instrument while protective covers are removed Energy available at many points may if con tacted result in personal injury e Any adjustment maintenance and repair of the opened in strument under voltage should be avoided as much as possible and when inevitable should be carried out only by a skilled person who 1 aware of the hazard involved Capacitors inside the instrument may still be c
78. to the ECL IN and ECL OUT do not need to be removed in order to do the self test for each board All other cable connections must be removed All self tests can be run without access to the interior of the instrument If a self test fails refer to section 6 8 Troubleshooting Self Test Access Procedure 1 Disconnect all oscilloscope inputs and turn on the power switch 2 From the startup screen shown in figure 6 2 touch the Configuration field Then touch Test in the pop up menu Master Frame SCOPE ACQUISITION 400 MEGASAMPLE S SCOPE TIMEBASE 400 MEGASAMPLE S B Unrecognized Card 35 MHz STATE 100 MHz TIMING Configuration Rear Disk Front Disk Utilities 1 Keyboard Controller RS 232C Printer Figure 6 2 Startup Screen HP 16532 Service 3 Install the Composite PV Test software disk in the inactive disk drive 4 Touch the box labeled Touch box to Load Test System See figure 6 3 Note When the self test software is loaded the user operating system is overwritten in the mainframe system RAM Touch Box to Load Test System Module Name Code Version Card ID Code SYSTEM 1 2 SLOT A SLOT B Oscilloscope B Y04 00 SLOT C SLOT D 1 GSa s Scope D 4904 00 SLOT E State Timing E 04 00 ROM Version 00 02 System Memory 2 5 Figure 6 3 Load Test System Screen 5 From the test s
79. tt Packard Parts Center in Mountain View California 5 2 No maximum or minimum on any mail order there is a minimum order for parts ordered through local Hewlett Packard offices when orders require billing and invoicing Prepaid transportation there is a small handling charge for each order e No invoices to provide these advantages check or money order must accompany each order Mail order forms and specific ordering information are available through your local Hewlett Packard offices Table 5 1 Reference Designator and Abbreviations HP 16532A Replaceable Parts BT CR DL DS A AD AC ADJ AL AMPL ANLG ANSI ASSY ASTIG ATTEN AWG BAL BCD BD BFR BIN BRDG BSHG BW C CAL CC CCW CER CFM CH CHAM CHAN CHAR CM CMOS CMR CNDCT CNTR CON CONT CRT CW D A DAC DARL DAT DBL DBM DC DCDR DEG DEMUX DET DIA DIP DIV DMA DPDT DRC DRVR assembly fan motor battery diode diode thyristor varactor delay line annunciator lamp LED misc electrical amperes analog to digital alternating current adjust ment aluminum amplifier analog American National Standards Institute assembly astigmatism asynchronous attenuator American wire gauge balance binary code decimal board buffer binary bridge bushing bandwidth ceramic cermet resistor
80. unded wrist straps and mats when you are performing any kind of service on this module The PROTECT UNPROTECT switch must be set to PROTECT after calibration is finished Set the switch to as follows 1 Remove power from the instrument Pull the modules located above the oscilloscope halfway out then remove the filler panels and cards located above the oscilloscope See figure 4 6 for the removal sequence TOP CARD NEXT LOWEST 2 mn Figure 4 6 Endplate Overlap Top Sequence 2 Remove the oscilloscope module and set the switch to the PROTECT position See Figure 4 2 to locate this switch 3 Repeat step 2 for each module calibrated 4 Reinstall the modules and filler panels in reverse order of steps 1 and 2 4 14 Sealing the Mainframe After calibration has been completed the mainframe should be sealed to protect the integrity of the system Place seal on the equipment such that the seal touches both the top most module or filler panel and the mainframe 48 TABLE OF CONTENTS Replaceable Parts 5 1 5 2 5 3 5 4 5 5 5 6 5 1 Abbreviations 7 5 1 Parts List id 5 1 Ordering Information Wii ad Seg eel a Ae ee ee Seabee E ae 5 1 Exchange Assemblies conocio 3 9 2G n pue DURO D pd 5 1 Direct Mail Order System
81. ur 1 On 8 Select DONE In the Display menu set MODE AVERAGE 8 and DELAY 99 00 ns Select RUN RE PETITIVE and allow the oscilloscope module to run approximately two minutes Select STOP 9 In the statistics field check to see that the MEAN X O field is approximately 99 000 ns Check that both the MIN X O and the MAX are within 155 ps of the MEAN X O Record the results in the performance test record Note Failure of the time measurement accuracy test can be caused by a defective main assembly 3 14 3 13 TRIGGER SENSITIVITY This test checks channel triggers for sensitivity at rated bandwidth Specification dc to 50 MHz 0 063 x full scale 0 25 division 50 to 250 MHz 0 125 x full scale 0 5 division Equipment Required HP 16532A Performance Tests The following equipment is required for this test Procedures are based on the model or part number rec ommended Equipment Required Critical Specification Recommended Model Part Number Signal Generator 50 250 MHz 30 80 mV rms output HP 8656B Opt 001 Cable 50 Q BNC 48 HP 10503B Adapter 50 to f 1250 0780 Procedure 1 In the Waveform Selection menu delete channel 2 If channel 1 is not inserted insert channel 1 On the oscilloscope module set the following parameters in the order given Menu Selection Setting Chan
82. ystem screen in figure 6 4 touch Test System then touch 1 GSa s SCOPE D For the example shown in figure 6 4 the oscilloscope module is in slot D If multiple oscilloscope mod ules are present select the one to be tested Test System Master Mainframe Test Keyboard Unreco Ca Unrecognized Controller GIGASAMPLE S OSCILLOSCOPE MN RS 232C Unrecognized a Card Figure 6 4 Test System Screen 16532 Service Figure 6 5 shows the selection menu for choosing to perform functional tests The status the functional tests 15 given Functional Tests Status UNTESTED Figure 6 5 Functional Tests Screen 6 Touch the Functional Tests field Figure 6 6 is the main self test menu Self tests can be either run individually by touching a specific test field or run automatically through all tests one time by touching the All Tests field When either All Tests or individual tests are run the status will change to either PASSED or FAILED If you do all tests by touch ing the Tests field skip to step 11 The procedures given in steps 7 through 12 use the A D Test as example of how individual tests are done Functional Tests Data Memory Test D A Test Status UNTESTED Status UNTESTED Timebase Test Trigger Test Status UNTESTED Status UNTESTED A D Test IMB Test Status UNTESTED Status UNTESTED PLEASE DISCONNECT ALL INPUTS

HP 1GSa/s User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents