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R&S SMC100A Service Manual - Rohde & Schwarz Philippines

1. gt 10 MHz Ref Note The INPUT of the directional coupler is directly screwed to the DUT The second signal generator is connected to the line connector OUTPUT the analyzer to the coupling output COUPLED of the directional coupler Test Assembly for Setting Time Test equipment Spectrum analyzer Table 1 1 item 18 Pulse generator Table 1 1 item 13 Test setup Pulse generator Trigger pulse 10 MHz Ref RF 1411 4060 82 1 5 E 3 Preparation Recommended Test Frequencies and Levels R amp S SMC100A Preparation Recommended Test Frequencies and Levels To ensure proper conditions for the performance test and prevent setting errors the instrument must be prepared as follows e Allow for a minimum warm up time of 30 minutes at ambient temperature e Carry out all internal adjustments see operating manual chapter 4 section Internal Adjustment Setup System e Press PRESET to establish a defined initial state before configuring a new measurement The following sections describe the procedures for checking the rated values The values are specified in the data sheet Additional uncertainties introduced by the measurement equipment must be taken into account when checking the rated values The following table lists the important internal switch point frequencies and the recommended measur
2. Test Assembly for Pulse Modulation Test equipment Oscilloscope Table 1 1 item 3 Signal generator Table 1 1 item 5 Mixer Test setup The pulsed RF is mixed down to DC in phase and analyzed with an oscilloscope Pulse 4 10 MHz Ref 1411 4060 82 1 3 E 3 Test Assemblies R amp S SMC100A Test Assembly for Residual AM Test equipment RF analyzer Table 1 1 item 18 Zero Bias Schottky Detector Table 1 1 item 20 Low Noise Preamplifier 10 Hz 30kHz gt 30dB Gain Table 1 1 item 9 10 MHz Ref Test setup e Detector Preamp Test Assembly for SSB Phase Noise and Jitter Test equipment SSB reference source Table 1 1 item 2 Phase noise test assembly consisting of Spectrum analyzer Table 1 1 item 18 Test setup LO Mixer IF gt RF 10 MHz Ref ooo e 1411 4060 82 1 4 E 3 R amp S SMC100A Test Assemblies Test Assembly for Output Impedance VSWR Test equipment VSWR bridge Table 1 1 item 10 Second signal generator Table 1 1 item 5 Spectrum analyzer Table 1 1 item 18 Directional coupler 6dB OUTPUT COUPLED INPUT Test setup
3. penseseas sujBu siu 104 JOA 31Yy99yY sun jueunyxog sesalp ANZ For this document all rights are reserved F r dieses Dokument behalten wir uns alle Rechte vor ROHDERSCHWARZ FRONTANSCHLUSSPLATTE FRONT CONNECTOR PLATE WAT OTT Er 30089528 E 1411 4748 00 EE ENEE
4. 3 14 Troubleshooting Internal Adjustments 3 16 U Unit cannot be switched on 3 9 Update of firmware 47 Update Of software 4 1 E 3 Basic Safety Instructions Always read through and comply with the following safety instructions All plants and locations of the Rohde 8 Schwarz group of companies make every effort to keep the safety standards of our products up to date and to offer our customers the highest possible degree of safety Our products and the auxiliary equipment they require are designed built and tested in accordance with the safety standards that apply in each case Compliance with these standards is continuously monitored by our quality assurance system The product described here has been designed built and tested in accordance with the attached EC Certificate of Conformity and has left the manufacturer s plant in a condition fully complying with safety standards To maintain this condition and to ensure safe operation you must observe all instructions and warnings provided in this manual If you have any questions regarding these safety instructions the Rohde amp Schwarz group of companies will be happy to answer them Furthermore it is your responsibility to use the product in an appropriate manner This product is designed for use solely in industrial and laboratory environments or if expressly permitted also in the field and must not be used in any way that may cause pe
5. TERT ode eR aaa 3 6 Troubleshooting ad 3 7 Measuring Equipment and Accessortes eene nnne 3 7 owitch On Problems ie ex e n eed e tent RE 3 8 ere E BEE 3 8 ee ee ege PEN 3 8 Problems wihi Booting toten did 3 11 Keyboard and Rotary Knob Test 3 12 Troubleshooting with Internal Self Test 3 13 Troubleshooting with Internal Test Points 3 14 Troubleshooting with Internal Adjustments nennen 3 16 Instrument Faults nel Ri deb donnus 3 17 Troubleshooting Basis Board Module emnes 3 21 lee Ke ms 3 21 FUSOS 2 5 ce EE 3 22 Troubleshooting RF Board module eene eene 3 23 lee Keele 3 23 Control lie ch ein eine nalen 3 24 Internal Input and Output Signals en 3 25 Error Messages Concerning the RF Board 3 26 Warnings Concerning the RF Board Module 3 26 Frequency I 3 27 1411 4060 82 1 3 1 2 Contents Repair R amp S SMC100A Troubleshooting Reference Oscillator option R amp S 5 1 3 28 Input and Output Signals nen 3 28 Error Messages Concerning the Reference Oscillator Module 3 29 Frequency Error Reference Oscillator Adjustment sese 3 29 Module Replacement ueniet HIR RUE I Fe o NO EL ere oe 3 30
6. 9 kHz 3 2 GHz Tr A 4 gt Install the Front Unit A300 400 see page 3 37 1411 4060 82 3 43 E 2 Module Replacement R amp S SMC100A Install the Encoder Board A310 gt Move the encoder board A310 411 and screw it with the two screws 412 9 kHz 3 2 GHz gt Install the Front Unit 400 see page 3 37 1411 4060 82 3 44 E 2 R amp S SMC100A Module Replacement Install the front corner plate gt Move the front corner plate 414 backwards and screw it with the four screws 406 gt Bocce Eppie gt Install the Front Unit A300 400 see page 3 37 gt Mounting the tube see page 3 33 9 kHz 3 2 GHz 1411 4060 82 3 45 E 2 Module Replacement R amp S SMC100A Replacing the Power Supply A50 see drawing 1411 4002 01 Removing the Power Supply A50 gt Switch off the instrument and pull the mains plug gt Dismounting the tube see page 3 33 Disconnect the three combinations screws 160 on the back side of the instrument 160 Disconnect the two screws 206 from the power supply holder 1 2 204 150 X101 Power supply cable Pullofthe power supply cable from X101 from the Basis Board 2 A100 150 gt Pull the power supply forwards and remove it 1411 4060 82 3 46 E 2 R amp S SMC100A Module Replacement Install the Power Supply A50 gt Move the power supply into the in
7. If connected correct most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 1411 4060 82 3 19 Troubleshooting R amp S SMC100A Fault Test Action if test fails Amplitude The AM is specified only up to the Peak Envelope Power Most probably the RF Board is defective Modulation Faulty PEP noted in the datasheet The PEP value of an AM signal with depth m at setting level P is Prep Level 20 logio 1 m 100 So at m 100 the PEP is 6 02 dB higher than the setting level shown in the display The AM performance has to match the values given in the datasheet Measure with a true demodulating receiver Le a R amp S FSMR or R amp S FSL FSP FSU FSQ spectrum analyzer equipped with option R amp S K7 Check the RF Board being supplied correct see page 3 23 Frequency Phase Modulation Faulty FM and PhiM Modulation are generated in the DDS synthesizer reference signal on the RF Board Run Internal Adjustments to ensure the VCOs generating the RF signal working in their optimum The FM performance has to match the values given in the datasheet Measure with a true demodulating receiver i e R amp S FSMR or R amp S FSL FSP FSU FSQ spectrum analyzer equipped with option R amp S K7 Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 Pulse Generator Pulse Modulator Faulty The pulse generat
8. RF power amplifier 10 MHz to RF max Mini Circuits ZHL 03 5WF power 33 dBm Pulse generator Pulse repetition frequency at least R amp S SMC100A or 10 kHz R amp S SMB100A equipped with option K23 or R amp S SMA100A AC DC voltmeter voltmeter 10Hzto100kHz Hz 10Hzto100kHz 100 KHz RESURES URE3 350 5315 03 5315 03 EM FM included in spectrum analyzer demodulator item 18 RF attenuator attenuator DC to RFnax 10 dB system N to RFmax 10 dB DC to RFnax 10 dB system N N DNF 0272421050 4210 50 LL M attenuator DC to RFmax 3 dB system N LI MM DNF ELM 4010 50 RF analyzer amp 9 kHz to RFmax 3 R amp S FSMR26 with options 1166 3311 26 Demodulator for analog R amp S FSU B25 1044 9298 02 modulations amp R amp S FS B223 or 1157 1955 26 FM demodulator R amp S FSQ26 with options 1155 5001 26 R amp S FSU B25 1044 9298 02 R amp S FSQ 7 1141 1796 02 Feed through termination 50 BNC system R amp S RAD 0289 8966 00 1411 4060 82 1 2 E 3 R amp S SMC100A Test Assemblies Standard Test Assembly for Analog Modulations Test equipment RF analyzer Table 1 1 item 18 Signal generator Table 1 1 item 5 Test Assemblies Test setup The RF analyzer is used as a modulation analyzer The signal generator is used as modulation source modulation 10 MHz Ref gt in case of external LF 10 MHz Ref
9. Reduce the output level setthe attenuator mode to Auto or reset the fix range by briefly switching the attenuator mode to Auto and then switching back to Fixed The peak envelope power PEP is higher than the permissible upper limit because of the set AM modulation depth Reduce the output level or increase the level limit e g by switching the attenuator mode to Auto if Normal or Fixed mode was set Reducing the AM modulation depth will also eliminate the warning The full output level range cannot be utilized at low frequencies below 500 kHz because internal components may be overloaded Reduce the output level to eliminate the warning The deviation setting in frequency or phase modulation is incorrect Check deviation setting of frequency or phase modulation Settings for the internal pulse generator are incorrect Check timing settings of the pulse generator 3 26 R amp S SMC100A Troubleshooting Frequency Error Error Error correction Internal reference frequency gt frequency accuracy of the synthesizer is determined set to internal reference without option R amp S SMC B1 OCXO by a highly stable 20 MHz quartz oscillator that is set to a calibrated frequency standard at the R amp S factory This oscillator is subject to ageing and can be recalibrated see chapter 2 Adjustment of internal Reference Frequency Frequency error greater than limit given in datasheet Note The internal re
10. Setting on DUT RF On Level 0 dBm Frequency recommended test frequencies Pulse Modulation menu Source External State On Polarity Inverse Setting on Analyzer FREQ CENTER test frequency SPAN 0 Hz AMPT REF LEVEL 0 dBm BW gt RES BW MANUAL 3 kHz SWEEP gt SWEEP TIME MANUAL 100 ms MEAS gt TIME DOM POWER on Determine the output level of the DUT at the recommended test frequencies with Pulse Modulation gt Polarity Inverse and Pulse Modulation gt Polarity Normal gt The level difference between the output level with Polarity Inverse and Polarity Normal is the ON OFF ratio Recommended test frequencies 5 MHz 150 MHz 400 MHz 1 1 GHz 2 2 GHz 3 GHz 3 2 GHz 1411 4060 82 1 40 E 3 R amp S SMC100A Rise Fall Time Test assembly Test method Measurement Recommended test frequencies 1411 4060 82 Test Procedures Test Assembly for Pulse Modulation see page 1 3 The RF signal is down converted to 0 Hz in phase Thus the IF output reproduces the RF amplitude vs time gt Setting on pulse generator For adjustment statically high level for measurement square wave pulse sequence with a frequency of 0 5 MHz TTL level gt Setting on DUT RF On Level 0 dBm Frequency recommended test frequencies Pulse Modulation menu State On gt Setting on Signal Generator RF On Level Recommended Lo Level of Mixer Frequency same as DUT gt Setting on oscilloscope Adjust V div according to
11. Disconnect the fan cable at X116 and push the rubber pins through the trough rubber pins Pullthe fan unit E1 106 upwards Install the Fan Unit E1 Install the new fan and proceed in the reverse order gt Cut off the unnecessary rubber from the pins which extend outside the instrument casing Fan Unit E1 106 see also Overview of the Modules page 3 30 1411 4060 82 3 55 E 2 Module Replacement R amp S SMC100A Replacing the R amp S SMC B1 Install the R amp S SMC B1 gt Switch off the instrument and pull the mains plug gt Unscrew the two combinations screws 508 and remove the rear panel 2 507 MN a H E SMC B1 gt Screw the reference oscillator R amp S SMC B1 with the 2 combinations screws 508 1411 4060 82 3 56 E 2 R amp S SMC100A Module Replacement Remove the Reference Oscillator R amp S SMC B1 gt Unscrew the 2 combinations screws 508 gt Carefully remove the reference oscillator R amp S SMC B1 backwards 1411 4060 82 3 57 E 2 R amp S SMC100A Contents Software Update Installing Options Contents Chapter 4 Software Update Installing Options 4 Software Update Installing Options 4 1 Installation of New R amp S SMC Firmware nen 4 1 Installing the Options 40 2 2 20 a een 4 2 Hardware TEE TE 4 2 Software ODptlOris 1 bere geen a Leda e ge dis a e or UE E Lact ri agde 4 3 1411 4060 82 1 4 1
12. Motherboard tier nire eter Sekt 3 5 O Option Installation Bee e dtl ee Seet 4 2 Output impedance EE 1 5 1411 4060 82 Index P Phase noise Test assembly 11452 BR NEN M 1 4 ee 5 2 Power Supply Module 251310 Protection service 5 3 14 Pulse modulation Test procedure 1 38 R Rated characteristics A Dedit aes 1 1 Test procedures iu ore ea 1 7 Reference frequency Test DroCedUre iuis ree tts 1 7 Replacement Mode e n en rei 3 30 Replacing F Uses sodes dieti dete tapete dete 3 34 Residual AM Test assembly nad eed bogus 1 4 S Software update 4 1 Spectral purity Test procedure sss 1 10 Switch on problems enne 3 9 T SR SAA cepe ves 1 3 Analog modulations Output impedance 1 5 Residual AM uii ita 1 4 SSB phase noise 1 4 Test equipment 1 1 Test frequency recommended 1 6 Test Points seine hinein 3 14 Test procedure Amplitude modulation 1 26 1 31 LOVER E 1 20 Modulation generator Pulse modulation 1 38 Spectral purity ossis eene 1 10 Test procedures esent 1 7 Troubleshooting Problems with booting 3 11 Switch on problems enne 3 9 Test points and debug
13. Printed documents are not subject to revision Pos Nr Menge ME El Kennz_ Benennung Bezeichnung 7 Sachnummer Ersatzteil BA VH ItemNo Quantity Unit bet Des Designation Stock No Subst part ACHTUNG EGB ATTENTION ESD VARIANTENERKLAERUNG EXPLANATION OF MODELS VARO2 GRUNDVARIANTE MODO2 BASIC MODEL MZ HALTEWINKEL 1 2 HOLDER 1 2 KB GERAETEWANNE SMC BEDRUCKT REAR PANEL SMC BEDRUCKT KR BW2 FRONTRAHMEN 2E 1 2 FRONTFRAME VN BLINDNIET 3 2X5 8 ST BLIND RIVET 3 2X5 8 ST WG HF DICHT O PROF 2 0 SI SEALING DX LUEFTEREINHEIT FAN UNIT MZ Dichtungsfeder L 12 05 MZ SEAL SPRING L 12 05 Benennung Designation CHASSIS SMC ROHDE amp SCHWARZ CHASSIS SMC Datum Date Abt 2008 05 28 1GPK Name Name MS 1411 4254 00 1411 4319 00 1096 0355 00 1096 4821 00 0396 1035 00 1406 6330 00 1143 8881 00 Sprach Lang C Blatt Sheet de en 06 00 1 of 1 Dokument Nr Document No 1411 4348 01 ST F r diese Unterlage behalten wir uns alle Rechte vor Ausgedruckte Dokumente unterliegen nicht dem nderungsdienst For this document all rights are reserved Printed documents are not subject to revision Pos Nr Menge ME El Kennz Benennung Bezeichnung 7 Sachnummer Ersatzteil BA VH ItemNo Quantity Unit bet Des Designation Stock No Subst part ACHTUNG EGB ATTENTION ESD VARIANTENERKLAERUNG EXPLANATION OF MODELS VARO2 GRUNDVARIANTE MODO2 BASIC MODEL ZN MON
14. Check power on switch on the rear Power switch OFF Switch on power supply Check fuses on the rear Check yellow LED standby LED remains unlit U Measure standby voltage at pin1 X101 see Fig 3 1 Rated value 4 75 V 5 25 V No voltage Check power cable from power supply no faulty voltage change power supply Otherwise Loose Flex Switchboard in X112 or bad contacts Fig 3 1 ON OFF Testpoint X101 and X112 location on the Basis Board e Error Signal generator starts up but display remains black Description of error Possible error causes and further steps CPU does not boot correctly Check red LED on Basis Board see Fig 3 2 If LED does not turn red approx 1 sec after power on either the Basis Board FPGA does not configure correctly or the CPU does not boot try to update the firmware which includes the FPGA configuration data If this does not help Change Basis Board Cables are loose Check cabling between Basis Board and Display TFT display defective Replace Front panel with TFT display 1411 4060 82 3 9 E 2 Troubleshooting R amp S SMC100A Fig 3 2 Red LED location on the Basis Board e Error Fan does not work Description of error Possible error causes and further steps Fan does not work Disconnect fan and check voltage on Basis Board X116 fan connector between pin 1 and 2 see Fig 3 3 Rated voltage 8 V 13 V depending on temperature Correct voltage Replace fan Faulty
15. de que se produzcan alergias provocadas por algunos materiales empleados los llamados al rgenos p ej el n quel Si durante el manejo de productos Rohde amp Schwarz se producen reacciones al rgicas como p ej irritaciones cut neas estornudos continuos enrojecimiento de la conjuntiva o dificultades respiratorias debe avisarse inmediatamente a un m dico para investigar las causas y evitar cualquier molestia o da o a la salud Antes de la manipulaci n mec nica y o t rmica o el desmontaje del producto debe tenerse en cuenta imprescindiblemente el cap tulo Eliminaci n punto 1 1171 0000 42 05 00 Page 10 5 Informaciones elementales de seguridad Ciertos productos como las instalaciones de radiocomunicaci n pueden a causa de su funci n natural emitir una radiaci n electromagn tica aumentada Deben tomarse todas las medidas necesarias para la protecci n de las mujeres embarazadas Tambi n las personas con marcapasos pueden correr peligro a causa de la radiaci n electromagn tica El empresario operador tiene la obligaci n de evaluar y se alizar las reas de trabajo en las que exista un riesgo elevado de exposici n a radiaciones Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias t xicas gases l quidos etc que pueden generar da os a la salud Por eso en caso de incendio deben usarse medidas adecuadas como p ej m scaras antig s e indumentaria de protecci
16. n el ctrica Si es necesario modificar el ajuste de tensi n tambi n se deber n cambiar en caso dado los fusibles correspondientes del producto Los productos de la clase de protecci n con alimentaci n m vil y enchufe individual solamente podr n enchufarse a tomas de corriente con contacto de seguridad y con conductor de protecci n conectado Queda prohibida la interrupci n intencionada del conductor de protecci n tanto en la toma de corriente como en el mismo producto La interrupci n puede tener como consecuencia el riesgo de que el producto sea fuente de choques el ctricos Si se utilizan cables alargadores o regletas de enchufe deber garantizarse la realizaci n de un examen regular de los mismos en cuanto a su estado t cnico de seguridad Si el producto no est equipado con un interruptor para desconectarlo de la red se deber considerar el enchufe del cable de conexi n como interruptor En estos casos se deber asegurar que el enchufe siempre sea de f cil acceso de acuerdo con la longitud del cable de conexi n aproximadamente 2 m Los interruptores de funci n o electr nicos no son aptos para el corte de la red el ctrica Si los productos sin interruptor est n integrados en bastidores o instalaciones se deber colocar el interruptor en el nivel de la instalaci n No utilice nunca el producto si est da ado el cable de conexi n a red Compruebe regularmente el correcto estado de los cables de conexi n a
17. 10 ms TRIGGER EXTERN External triggering by positive edge at 1 4 V Measurement gt Send the stop level from the controller to the DUT gt The externally triggered analyzer displays the settling curve The setting time is defined as the time from which on the level deviation from the final level is less than the specified deviation in the data sheet gt Measure the following steps with ALC state AUTO and with ALC state OFF Sample 8 Hold Recommended test Frequencies 1 MHz 30 MHz 375 MHz 1 1 GHz 2 2 GHz and frequencies and levels 3 2 GHz Start level Stop level 120 dBm 13 dBm 1411 4060 82 1 24 E 3 R amp S SMC100A Test Procedures Internal Modulation Generator Frequency accuracy The LF Generator is integrated into an FPGA clocked with the same reference frequency as the synthesizer Therefore the LF frequency has the same accuracy as the RF and has not to be measured Distortions Test equipment Test method Test setup Measurement of frequency settings and distortion Recommended test frequencies 1411 4060 82 Spectrum analyzer Table 1 1 item 18 The fundamental and harmonics of the LF generator are measured with the analyzer The analyzer calculates the Total Harmonic Distortion with the Harmonic Distortion function gt Connect the spectrum analyzer to the LF socket of the DUT gt Settings on DUT LF Output menu LF Gen Voltage 1 V LF Gen Frequency 1 kHz gt
18. AC voltmeter Item 14 of Table 1 1 LFGen Voltage 1 V peak State ON gt Settings on R amp S FSQ FFT Demodulation gt Vary the signal generator frequency and measure the modulation deviation The modulation frequency response is the factor between the greatest and the smallest modulation deviation Recommended settings gt LF in logarithmic steps 3 steps per decade 1 2 5 from 10 Hz to 100 kHz gt Perform the measurement for test frequency 23 MHz gt Repeat the measurement with changing the settings to FM Ext Coupling AC for test frequency 23 MHz gt Repeat the measurement with changing the settings to FM Ext Coupling AC FM deviation 500 kHz for test frequencies 200 1 MHz 266 MHz 333 MHz 400 MHz LF sweep from 1 kHz to 100 kHz gt Repeat the measurement with changing the settings to FM Source Internal FM deviation 500 kHz at test frequency 400 MHz LF sweep from 1 kHz to 100 kHz Synchronous AM with FM Test assembly See section Standard Test Assembly for Analog Modulations page 1 3 1411 4060 82 1 34 E 3 R amp S SMC100A Measurement Recommended settings 1411 4060 82 gt gt Test Procedures Settings on DUT RF On Level 0 dBm Frequency Modulation menu State on FM Source Internal FM deviation 40 kHz LFGen Frequency 1 kHz Settings on spectrum analyzer AMPTD REF LEVEL 6 dBm FREQ CENTER test frequency FMDEMOD FMDEMOD ON RESULT DISPLAY AM AF Spectru
19. DEMOD FM DEMOD gt RESULT DISPLAY gt AM FM DEMOD gt MEAS TIME 100ms FM DEMOD gt DEMOD BW 200 kHz FM DEMOD gt AF FILTER HIGH PASS AF FILTER 20 Hz FM DEMOD gt AF FILTER gt LOW PASS AF FILTER 20 kHz gt The Residual AM in the frequency range 20 Hz 23 kHz is the RMS value displayed Test Procedures R amp S SMC100A Example IFB 2 MHz Ref 0 Att 5 dB AOT 200 ms e gt CLRWR Center 1 GHz 20 ms Amplitude Modulation Summary Modulation Depth 0 022 5 Carrier Power 0 87 dBm Modulation peak 0 022 5 Modulation Frequency HE peak 05 023 Sampling Rate 250 kHz peak 2 0022 3 Record Length 50001 RMS 0 005 5 Demod Bandwidth 200 kHz AF Filter HP 20 Hz LP 23 kHz Date 25 FEB 2008 16 33 44 Residual AM 0 005 1411 4060 82 1 20 E 3 R amp S SMC100A Level Data Level Uncertainty Test method Test equipment Test Procedures The level uncertainty is measured in two steps First the frequency response is measured at a fixed level with high frequency resolution Then the level dependant uncertainty is measured at fixed frequencies over the specified range Power meter Table 1 1 item 8 Spectrum analyzer Table 1 1 item 18 Low noise preamplifier Table 1 1 item 9 Test method for levels in measurement range of power meter Test setup Measurement Recommended test frequencies for the level frequency res
20. DVD drive is integrated into a Rohde amp Schwarz product absolutely no other settings or functions may be used as described in the product documentation The objective is to prevent personal injury e g due to laser beams 1171 0000 42 05 00 Page 4 Basic Safety Instructions Repair and service 1 The product may be opened only by authorized specially trained personnel Before any work is performed on the product or before the product is opened it must be disconnected from the AC supply network Otherwise personnel will be exposed to the risk of an electric shock Adjustments replacement of parts maintenance and repair may be performed only by electrical experts authorized by Rohde amp Schwarz Only original parts may be used for replacing parts relevant to safety e g power switches power transformers fuses A safety test must always be performed after parts relevant to safety have been replaced visual inspection PE conductor test insulation resistance measurement leakage current measurement functional test This helps ensure the continued safety of the product Batteries and rechargeable batteries cells If the information regarding batteries and rechargeable batteries cells is not observed either at all or to the extent necessary product users may be exposed to the risk of explosions fire and or serious personal injury and in some cases death Batteries and rechargeable batteries with alkaline electrolytes e g
21. Required tools ecc M diee bei ug EL KH Heisse atada 3 30 Overview of the 3 30 After replacing an ASSOMDIY cccceccceeseccceeeetcaeceeedeceeeeeecheneesededendaueaeeesscddeensedsaaenseeaeeeneneeie 3 31 Safety Instr ction iii ida 3 32 Dismounting hue 3 33 Mounting the tube A s 3 33 Kee Tute WT CEET 3 34 ECH e NO 3 34 Replacing the Front Unit nn 3 35 Removing the Front Unit 1411 4802 02 3 35 Install the Front Unit 1411 4802 02 essem 3 37 Replacing the TFT Display A330 Encoder Board A310 Flex Switch Board Pushbutton Board Set the key frame and front corner 3 39 Removing the TFT Display A330 eee nemen enne 3 39 Removing the flex switch Board the Pushbutton Set and the key frame 3 40 Removing the Encoder Board A310 enm 3 41 Removing the front corner plate 3 41 Install the Flex switch Board the Pushbutton Set the key frame and the TFT Display A330 sss enn 3 42 Install the Encoder Board A310 sssssssssssseeeeene eene enne 3 44 Install the front corner plate eere 3 45 Replacing the Power Supply Ab 3 46 Removing the Power Supply Ab 3 46 Install the Power Supply Ab 3 47 Replacing t
22. SMC100A Troubleshooting Measure these signals Test point Function Signal at normal operation Defective Q4 Q6 Q14 Q15 Logic Control Signals Check the serial number of the RF Board Basis Board Q5 Logic Control Signal displayed in the GUI RF Board SETUP Hardware Config RF Board More If the number is correct these signals are OK If not measure these Test Points with an Oscilloscope They should toggle between LOW and HIGH LVC 3 3V Q11 Q13 Reset HIGH LVC 3 3V Basis Board Q12 Interrupt Signal normal Operation HIGH LVC 3 3V Switch RF Board R amp S SMC100A to Reference extern without applying 10 MHz Reference signal LOW LVC 3 3V Q1 Blank Signal normal Operation LOW LVC 3 3V during Basis Board Frequency switching HIGH LVC 3 3V Q3 Diagnosis Voltage Voltage toggles on every update of the RF Board diagnosis Q8 Q16 Q17 Logic Control Signals Check the serial number of the MOD FPGA Basis Board Q7 Logic Control Signal displayed in the GUI RF Board SETUP Hardware Config MOD FPGA More If the number is not 0 0 these signals are OK If not measure these Test Points with an Oscilloscope They toggle between LOW and HIGH LVC 3 3V during the first seconds after Switching on the instrument Q21 Interrupt Instrument Trigger no signal at PULSE EXT INST TRIG X203 RF Board HIGH LVC 3 3V trigger signal at PULSE EXT INST TRIG X203
23. Ship the module in a sturdy padded box e Wrap the module in antistatic foil If the packaging is only antistatic but not conductive additional conductive packaging is required The additional packaging is not required if the tightly fitting packaging is conductive Exception If the module contains a battery the tightly fitting packaging must always consist of antistatic non chargeable material to protect the battery from being discharged 1171 0200 61 01 1 Ordering Spare Parts To deliver spare parts promptly and correctly we need the following information Stock number see list of spare parts in chapter Documents Designation Component number according to list of spare parts Number of pieces Instrument type for which the spare part is needed Instrument stock number Instrument serial number Contact person for possible questions Refurbished Modules Refurbished modules are an economical alternative to original modules Bear in mind that refurbished modules are not new but repaired and fully tested parts They may have traces from use but they are electrically and mechanically equivalent to new modules Your Rohde amp Schwarz representative will be happy to inform you about which modules are available as refurbished modules Taking Back Defective Replaced Modules Defective modules of the replacement program which cannot be repaired are taken back within three months following delivery A repurchasing value is c
24. cord is disconnected If you are not using the supplied spares be sure to use fuses ofthe same type and rating gt Switch off the instrument gt Disconnect the power supply cord gt To replace a fuse unscrew the fuse holder at the rear panel of the instrument fuse holder gt the fuse of the fuse holder Installing Fuse gt Push the fuse in the fuse holder Fuse 5 x 20 250V 3 15A gt Screw the fuse holder at the rear panel of the instrument 1411 4060 82 3 34 E 2 R amp S SMC100A Module Replacement Replacing the Front Unit A300 See drawings Front Unit 1411 4802 01 Front Connector Plate 1411 4748 00 and R amp S SMC100A 1411 4002 01 NOTICE The new front unit 1411 4802 02 can be used on Basis Board 1406 6700 04 with change index starting from 4 00 Removing the Front Unit A300 1411 4802 02 gt Switch off the instrument and pull the mains plug gt Dismounting the tube see page 3 33 Disconnect the 4 screws remove the protective corner front left and right 520 and 530 and the front cover R amp S SMC100A 500 SIGNAL GENERATOR 9 kHz 3 2 GHz screws Disconnect the four screws 401 two on the top side and two on the bottom side of the front unit A300 400 401 400 e o ODO 9 kHz 3 2 GHz 401 1411 4060 82 3 35 E 2 Module Replacement R amp S SMC100A gt Pull off the flex switch board cable 403 from X112 th
25. de muerte El manejo de bater as y acumuladores con electrolitos alcalinos p ej celdas de litio debe seguir el est ndar EN 62133 1 2 No deben desmontarse abrirse ni triturarse las celdas Las celdas o bater as no deben someterse a calor ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y bater as deben mantenerse limpias y secas Limpiar las conexiones sucias con un pa o seco y limpio Las celdas o bater as no deben cortocircuitarse Es peligroso almacenar las celdas o bater as en estuches o cajones en cuyo interior puedan cortocircuitarse por contacto rec proco o por contacto con otros materiales conductores No deben extraerse las celdas o bater as de sus embalajes originales hasta el momento en que vayan a utilizarse Mantener bater as y celdas fuera del alcance de los ni os En caso de ingesti n de una celda o bater a avisar inmediatamente a un m dico Las celdas o bater as no deben someterse a impactos mec nicos fuertes indebidos 1171 0000 42 05 00 Page 11 Informaciones elementales de seguridad 6 Encaso de falta de estanqueidad de una celda el liquido vertido no debe entrar en contacto con la piel ni los ojos Sise produce contacto lavar con agua abundante la zona afectada y avisar a un medico En caso de cambio o recarga inadecuados las celdas o baterias que contienen electrolitos alcalinos p ej las celdas de litio pueden explotar Para garantizar la seguridad del
26. debe tener en cuenta que el producto solo pueda ser operado por personal especializado o personas instruidas en profundidad con las capacidades correspondientes Si fuera necesaria indumentaria de seguridad para el uso de productos de Rohde amp Schwarz encontrar a la informaci n debida en la documentaci n del producto en el cap tulo correspondiente Guarde bien las informaciones de seguridad elementales as como la documentaci n del producto y entr guelas a usuarios posteriores Tener en cuenta las informaciones de seguridad sirve para evitar en lo posible lesiones o da os por peligros de toda clase Por eso es imprescindible leer detalladamente y comprender por completo las siguientes informaciones de seguridad antes de usar el producto y respetarlas durante el uso del producto Deber n tenerse en cuenta todas las dem s informaciones de seguridad como p ej las referentes a la protecci n de personas que encontrar n en el cap tulo correspondiente de la documentaci n del producto y que tambi n son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que distribuye el grupo de empresas Rohde 8 Schwarz bajo la denominaci n de producto entre ellos tambi n aparatos instalaciones as como toda clase de accesorios S mbolos y definiciones de seguridad l Aviso punto de Atenci n en Peligro de Adver Conexi n a Conexi n Conexi n Aviso Cuidado peligro general el manejo d
27. frequencies 100 kHz 1MHz 23 4375 MHz 23 438 MHz 99 9 MHz 399 9 MHz 1100 MHz 1599 9 MHz 1600 1 MHz 2262 9 MHz 3200 MHz 1 28 E 3 R amp S SMC100A AM Distortion Test assembly Measurement Recommended test frequencies 1411 4060 82 Test Procedures See section Standard Test Assembly for Analog Modulations page 1 3 gt Settings on DUT RF On Level 0 dBm Amplitude Modulation menu LF Gen Frequency 1 kHz Source Internal AM depth 30 gt Settings on R amp S FSQ AMPTD REF LEVEL 6 dBm FREQ CENTER test frequency FM DEMOD FMDEMOD ON RESULT DISPLAY gt AM RESULT DISPLAY gt AF SPECTRUM DEMOD BW gt 7 fio RANGE gt DEVIATION PER DIV 20 MEAS TIME 0 16 s Measure the THD for all recommended test frequencies To convert the displayed THD value in dB to percent calculate THDya 100 10 THDgp 20 Limits according datasheet gt 100 kHz 1MHz 23 4375 MHz 23 438 MHz 99 9 MHz 399 9 MHz 1100 MHz 1599 9 MHz 1600 1 MHz 2262 9 MHz 3200 MHz 1 29 E 3 Test Procedures AM Frequency Response Test assembly Measurement 1411 4060 82 R amp S SMC100A See section Standard Test Assembly for Analog Modulations page 1 3 gt Settings on DUT RF On Level 0 dBm Amplitude Modulation menu Source External External Coupling DC AM depth 60 Settings on R amp S FSQ AMPTD REF LEVEL 6 dBm FREQ CENTER test frequency FM DEMOD FMDEMOD ON RESULT DISPLAY
28. frequency gt Setthe DUT to the start frequency gt Send the stop frequency fstop from the controller to the DUT gt The externally triggered analyzer displays the settling curve The setting time is defined as the time from which on the frequency deviation from the stop frequency is less than the specified deviation in the data sheet gt Repeat the measurement with ALC state Off RF Automatic Level Control gt State gt OFF Sample amp Hold frequencies 23 4 MHz 1100 MHz 110 Hz Example of Measurement IFB 200 kHz Marker 1 T1 38 504081726 Hz Ref 0 Hz Att 25 dB AOT 5 12 ms 1 927436 nis SGL 1 AP 1 EXT Center 750 1 MHz 512 ps Date 14 FEB 2008 18 58 23 The marker is set to the time when the trace enters the specified interval of 750 1 MHz 75 Hz The setting time is 1 34 ms 1411 4060 82 1 10 E 3 R amp S SMC100A Spectral Purity Harmonics Test equipment Test setup Measurement Recommended test frequencies and levels 1411 4060 82 Test Procedures Spectrum analyzer Table 1 1 item 18 gt Connect the spectrum analyzer to the RF output of the DUT gt Synchronize the reference frequencies of analyzer and DUT gt Settings on analyzer Reference level 20 dBm 10 dB div Span 0 Hz Resolution bandwidth 10 kHz gt Settings on DUT Frequency test frequencies unmodulated Level test levels gt First measure the level o
29. generated directly by the DDS In this mode all the modulation is done fully digital The modulated signal is converted to the analog domain by a DAC The analog RF signal is amplified low pass filtered and fed to the input of the step attenuator For frequencies above 23 4375 MHz the DDS generates a reference signal for the frequency synthesizer providing the fine frequency resolution for the frequency synthesis In the synthesizer a VCO is locked to the reference frequency from the DDS The RF signal is then generated by the means of fixed frequency dividers set to the appropriate divider ratio 1411 4060 82 3 3 E 2 Instrument Design and Function Description R amp S SMC100A Harmonics filters The output signal of the frequency dividers is a square wave signal To reach the guaranteed harmonic performance see datasheet the harmonics of the RF signal have to be suppressed Due to the wide frequency range multiple filters are needed The different filters are selected according to the RF output frequency and their cut off frequency They are put into the RF signal path by the means of RF switches LF generator A DDS generates the LF sine wave signal This signal can be used as a source for internal modulation or as output signal at LFOUT BNC connector for frequencies up to 100 kHz The output amplitude of the LF signal is set with a multiplying DAC in the range from 10 mV to 2 55 V Pulse generator and Pulse Modulator The pulse generato
30. is installed uninstall this option first see page 3 57 gt Switch off the instrument and pull the mains plug gt Dismounting the tube see page 3 33 Slice up the two cable ties 208 and disconnect the cables W214 Mod Ext RF Board 650 the W215 LF RF Board 660 and W212 630 and the cable BB RF Board W222 440 Remove the 4 nuts of the BNC connectors 1411 4060 82 3 52 E 2 R amp S SMC100A Module Replacement gt Unscrew the 5 screws 260 from the RF board A200 250 and remove the board carefully Installing the RF Board gt Place the RF Board A200 250 into the R amp S SMC100A in the right position and fix it with 5 screws 260 NOTICE Do not screw down the 5 screws just fix them and after fixing the 4 BNC Connector nuts you can screw down the 5 screws gt Fix the 4 BNC Connectors with the nuts gt Screw the 5 screws 260 and than screw the 4 BNC Connectors with the nuts 1411 4060 82 3 53 E 2 Module Replacement R amp S SMC100A gt Connect the Cables W214 Mod Ext Board 420 W215 LF RF Board 43 W212 630 and the cable BB RF Board W222 440 gt Mounting the tube see page 3 33 1411 4060 82 3 54 E 2 R amp S SMC100A Module Replacement Replacing the Fan Unit E1 see drawing 1411 4002 01 and 1411 4348 01 Removing the Fan Unit E1 gt Switch off the instrument and pull the mains plug gt Dismounting the tube see page 3 33
31. lithium cells must be handled in accordance with the EN 62133 standard 1 Cells must not be taken apart or crushed 2 Cells or batteries must not be exposed to heat or fire Storage in direct sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth 3 Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit each other or where they can be short circuited by other conductive materials Cells and batteries must not be removed from their original packaging until they are ready to be used 4 Keep cells and batteries out of the hands of children If a cell or a battery has been swallowed seek medical aid immediately 5 Cells and batteries must not be exposed to any mechanical shocks that are stronger than permitted 6 Ifa cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 7 Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the matching Rohde amp Schwarz type see parts list in order to ensure the safety of the product 8 Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries and normal batteries that contain lead mer
32. n En caso de que un producto Rohde amp Schwarz contenga un producto l ser p ej un lector de CD DVD no debe usarse ninguna otra configuraci n o funci n aparte de las descritas en la documentaci n del producto a fin de evitar lesiones p ej debidas a irradiaci n l ser Reparaci n y mantenimiento 1 El producto solamente debe ser abierto por personal especializado con autorizaci n para ello Antes de manipular el producto o abrirlo es obligatorio desconectarlo de la tensi n de alimentaci n para evitar toda posibilidad de choque el ctrico El ajuste el cambio de partes el mantenimiento y la reparaci n deber n ser efectuadas solamente por electricistas autorizados por Rohde 8 Schwarz Si se reponen partes con importancia para los aspectos de seguridad p ej el enchufe los transformadores o los fusibles solamente podr n ser sustituidos por partes originales Despu s de cada cambio de partes relevantes para la seguridad deber realizarse un control de seguridad control a primera vista control del conductor de protecci n medici n de resistencia de aislamiento medici n de la corriente de fuga control de funcionamiento Con esto queda garantizada la seguridad del producto Bater as y acumuladores o celdas Si no se siguen o se siguen de modo insuficiente las indicaciones en cuanto a las bater as y acumuladores o celdas pueden producirse explosiones incendios y o lesiones graves con posible consecuencia
33. red Aseg rese mediante las medidas de protecci n y de instalaci n adecuadas de que el cable de conexi n a red no pueda ser da ado o de que nadie pueda ser da ado por l p ej al tropezar o por un choque el ctrico Solamente est permitido el funcionamiento en redes de alimentaci n TN TT aseguradas con fusibles de 16 A como m ximo utilizaci n de fusibles de mayor amperaje solo previa consulta con el grupo de empresas Rohde amp Schwarz Nunca conecte el enchufe en tomas de corriente sucias o llenas de polvo Introduzca el enchufe por completo y fuertemente en la toma de corriente La no observaci n de estas medidas puede provocar chispas fuego y o lesiones No sobrecargue las tomas de corriente los cables alargadores o las regletas de enchufe ya que esto podr a causar fuego o choques el ctricos En las mediciones en circuitos de corriente con una tensi n gt 30 V se deber n tomar las medidas apropiadas para impedir cualquier peligro p ej medios de medici n adecuados seguros limitaci n de tensi n corte protector aislamiento etc Para la conexi n con dispositivos inform ticos como un PC o un ordenador industrial debe comprobarse que stos cumplan los est ndares IEC60950 1 EN60950 1 o IEC61010 1 EN 61010 1 v lidos en cada caso A menos que est permitido expresamente no retire nunca la tapa ni componentes de la carcasa mientras el producto est en servicio Esto pone a descubierto los cables y
34. supply voltages These supply voltages are generated by means of switching regulators Controller Central Controller of the R amp S SMC100A including all memory devices and external interfaces FPGA 5 COM This FPGA performs data processing for the serial bus which sends setting data to the modules The SMB COM is configured via an SPI Interface of the processor The Display Controller and timer functions are also implemented in the SMB COM Keyboard Controller The keyboard controller notifies the processor about keyboard and spin wheel events The keyboard controller switches on or off the power supply module and memorizes the power on state of the instrument when the main power is cut This state is reconstituted on powering the instrument again Diagnostic ADC The diagnostic ADC is used for measuring the voltages in the unit These voltages are used for internal adjustments and the ALC S amp H mode of the R amp S SMC100A Additionally the failure diagnostic of the instrument is carried out by the use of ADC EEPROM The following data is stored here Header line data of the board and service information SIM Card A SIM card is used for identification of the instrument e g serial number Temperature sensor A temperature sensor mounted on the Basis Board monitors the temperature If a defined temperature above the guaranteed maximum operating temperature is exceeded the power supply is switched off So the R amp S SM
35. synchronized with a phase offset of 90 phase quadrature Mixing to 0 Hz suppresses the RF carrier Due to the phase quadrature the mixer supplies a voltage representing the phase difference between the input signals This voltage is measured with the spectrum analyzer Measurement gt Setthe levels of the two generators in accordance with the speci fications of the mixer used For the MITEQ DB0118 mixer set the LO level to 10 dBm and the RF level to 0 dBm gt Settings of the DUT PM int PM deviation 0 01 rad Modulation frequency 19 kHz gt Settings on the analyzer Center frequency 19 5 kHz Span 2 kHz Input coupling DC Attenuator manual 0 dB average on count 10 average mode linear power Filter Type FFT Resolution Bandwidth 10 Hz set marker to 19 kHz set delta marker to 20 kHz gt Adjust the phase of the DUT for phase quadrature Set the Delta Phase in the Frequency Phase menu for maximum marker readout at 19 kHz in the Delta Phase range of 0 to 180 Note down the relative Delta marker level D gt Calculate the SSB phase noise in dbc Hz The Delta Marker measures the noise in 10 Hz bandwidth The power in 1 Hz bandwidth is one tenth of this power log10 10 The PM with a modulation rate of 0 01 rad is equivalent to a phase noise of 46 dBc In baseband the two sidebands fall on each other 6dB The phase noises of the two generators add together 3dB if th
36. the fan cable on X116 and W222 cable BB RF Board 440 on X103 710 Fan cable gt Screw the six screws 160 to the Basis Board 2 A100 150 gt Connect the flex switch board cable 403 on X112 the flex strip cable W310 413 on X111 and the flex strip cable of the display 408 from X2113 gt Install the power supply see page 3 47 gt Mounting the tube see page 3 33 1411 4060 82 3 50 E 2 R amp S SMC100A Module Replacement Replacing the SIM Card A110 NOTICE When changing the Basis Board 2 you have to remove the SIM card The SIM card is part of your instrument and will not be replaced by Rohde amp Schwarz if lost Therefore always keep the SIM card with you Switch off the instrument and pull the mains plug Dismounting the tube see page 3 33 Removing the power supply see page 3 46 VON ON V Removing the Basis Board 2 see 3 48 The SIM card A110 155 is located on the rear side of the Basis Board 2 gt Open the latch of the SIM card holder by sliding the retaining bracket toward OPEN gt Flip the SIM card holder upward Thelatch of the SIM card holder is open now remove the SIM card R amp S SMC100A Toinstall the SIM card proceed in the reverse order 1411 4060 82 3 51 E 2 Module Replacement R amp S SMC100A Replacing the RF Board A200 see drawing 1411 4002 01 Removing the RF Board Note If the R amp S SMC B1 Reference Oscillator option
37. the mixer in use Time base 20 ns div Trigger for adjustment free running for measurement 50 of signal amplitude rising and falling edge gt Adjustment At each test frequency adjust phase using menu RF Mod Frequency Phase Phase Settings Vary the Delta Phase to obtain maximal signal output at the mixers IF port The voltage at maximum corresponds to 100 of RF amplitude gt Measurement Evaluate the down converted pulse modulated signal on the oscilloscope gt Rise time time between 10 and 90 of signal amplitude Fall time time between 90 and 10 of signal amplitude 400 MHz 1 1 GHz 2 2 GHz 3 2 GHz 1 41 E 3 Test Procedures Video Crosstalk Test assembly Measurement 1411 4060 82 R amp S SMC100A As above for ON OFF Ratio gt Setting on pulse generator Square wave pulse sequence with a frequency of 100 kHz TTL level Setting on DUT RF On Frequency 1 GHz 6 GHz Level 0 dBm Pulse Modulation State On Settings on the Analyzer REF LEVEL 0 dBm FREQ CENTER 100 kHz SPAN 10 kHz Measure the signal level at 100 kHz with the analyzer The Video Crosstalk is the amplitude of the spectral line found at 100 kHz related to the RF carrier level 1 42 E 3 R amp S SMC100A Test Procedures Pulse Generator PULSE VIDEO Test equipment Test setup Measurement 1411 4060 82 Storage oscilloscope Table 1 1 item 3 with 50 Q Feed through termination on input gt C
38. voltage Check the power supply of the Basis Board see page 3 21 Fig 3 3 X116 Fan Connector Pin Location 1411 4060 82 3 10 E 2 R amp S SMC100A Troubleshooting Problems with Booting e Error Unit does not start the application After switch on the signal generator first runs the Boot Loader The Boot Loader displays the R amp S Logo The Boot Loader loads the FPGAs on the Basis Board and on the RF Board After successful initialization of the computer approx 10 seconds the LINUX operating system starts up and displays the background picture Subsequently the application is loaded During loading several progress bars are shown on the display All software of the R amp S SMC100A is stored in an on board flash memory There are no serviceable hardware parts related to mass memory The only possible service action is the reinstallation of firmware which requires at least some basically working computer and firmware Normal action Error possible causes and corrective action R amp S SMC 100A Signal Generator Copyright 2008 by Rohde amp Schwarz Germany Start signal generator Booting please wait ROHDE amp SCHWARZ R amp S logo does not disappear Error The operating system LINUX does not start Try to reinstall the firmware with the help of the maintenance system If this is not possible or does not solve the problem replace the Basis Board 1411 4060 82 3 11 E 2 Troubleshooting R amp
39. 006 7107 00 DS 0025 2365 00 DS 0099 1456 00 1411 4060 82 BS1363 1967 10 A 250 V complying with IEC 83 1975 standard B2 Type 12 10 A 250 V complying with SEV regulation 1011 1059 standard sheet S 24 507 Type 498 13 10 A 250 V complying with US regulation UL 498 or with IEC 83 GB2099 GB1002 10 A 250 V approvals CCC JIS C 8303 7A 125 V AC approvals PSE JET Type SAA3 10 A 250 V complying with AS C112 1964 Ap DIN 49 441 10 A 250 V angular DIN 49 441 10 A 250 V straight approvals VDE VE CEBEC KEMA S D N Fl LCIE IMQ UCIEE 5 2 Available Power Cables Great Britain Switzerland USA Canada Europe except Switzerland 1411 4060 82 R amp S SMC100A Spare Parts List 5 3 ROHDE amp SCHWARZ F r diese Unterlage behalten wir uns alle Rechte vor Ausgedruckte Dokumente unterliegen nicht dem nderungsdienst For this document all rights are reserved Printed documents are not subject to revision Pos Nr Menge ME El Kennz Benennung Bezeichnung 7 Sachnummer Ersatzteil BA VH ItemNo Quantity Unit bet Des Designation Stock No Subst part SMC100A ACHTUNG EGB ATTENTION ESD VARIANTENERKLAERUNG EXPLANATION OF MODELS VARO2 GRUNDVARIANTE MODO2 BASIC MODEL ZS ERSATZTEILLISTE VORHANDEN SPARE PARTS LIST AVAILABLE Ersatzteilliste SMC ID Nr 1411 4031 01 ST ZM CHASSIS SMC CHASSIS SMC ED BASISBOARD 2 BASIS BOARD 2 HS CHIPKARTE SMC100A C
40. 00A with suited 1406 6000 02 Frequency range up to RF max frequency option Reference Synthesizer or 1158 2878 R amp S SMA100A with option 1400 0000 02 R amp S SMA B106 or 1405 0809 02 R amp S SMU200A with option 1142 2005 02 R amp S SMU B106 1141 8803 02 Signal generator 0 1 MHz to RF max R amp S SMB with option 1406 6000 02 R amp S SMB B106 1407 2909 02 R amp S SMU with options 1141 2005 02 R amp S SMU B106 B10 B31 or R amp S SMA100A with option 1400 0000 02 R amp S SMA B106 1405 0809 02 7 Oscilloscope Bandwidth 2 100 MHz Tektronix TDS 1012B or two channels with DC coupling similar RF power meter 9 kHz to RFmax R amp S NRP with 1143 8500 02 R amp S NRP Z91 1168 8004 02 R amp S NRP Z51 or 1138 0005 02 R amp S NRVS with 1020 1809 02 R amp S NRV Z5 0828 3818 02 R amp S NRV Z51 0857 9004 02 Low noise preamplifier 9 kHz to 1 MHz based an ADI AD829 gain gt 20 dB input noise 4 nV 1 Hz Phase noise test assembly Phase Noise Test Set or R amp S FSUP 8 or 1166 3506 08 Mixer 10 MHz to RFmax FSU or FSQ with phase noise branching filter 20 MHz measurement option DC decoupling after the mixer Mixer f lt 1 GHz Minicircuits ZFM2H 1 GHz f lt 6 GHz Miteq DBO118LA2 1411 4060 82 1 1 E 3 Measuring Equipment and Accessories R amp S SMC100A EZI Type of Instrument Required Characteristics Suitable Instrument R amp S Order No VSWR bridge 100 MHz to RFmax R amp S ZRC or 1039 9492 55 directivity 30 dB Agilent 773D
41. 060 82 3 40 E 2 R amp S SMC100A Module Replacement Removing the Encoder Board A310 gt Removing the Front Unit 400 see page 3 35 gt Remove the Knob 416 from the front side of the R amp S SMC100A Removing the front corner plate gt Dismounting the tube see page 3 33 Removing the Front Unit A300 400 see page 3 35 gt Unscrew the four screws 406 and remove the front corner plate 414 forwards OLE 9 3 2 GHz 1411 4060 82 3 41 E 2 Module Replacement R amp S SMC100A Install the Flex switch Board the Pushbutton Set the key frame and the TFT Display A330 gt Move the key frame 405 the push button board R amp S SMC100A 404 the flex switch board 403 back and screw them with the five screws 406 NOTICE Put the flex switch board cable in the slot of the mounting through 402 after the components 403 404 and 405 are mounted and screwed with the five screws 406 73 COCSCO CC ACC 1411 4060 82 3 42 2 R amp S SMC100A Module Replacement gt Place the TFT display 408 and the shielding plate 410 in the mounting through 402 and screw the five screws 407 NOTICE When installing the display make sure it is free of dust and fingerprints 9 kHz 3 2 GHz gt Move the Knob 416 on the front side of the R amp S SMC100A 416 S000 gt EN 9 OLK
42. 2 R amp S SMC100A Installation of New R amp S SMC Firmware 4 Software Update Installing Options This chapter contains information on firmware update Linux operating system update and installing options to the R amp S SMC Additional manuals obtained together with a firmware update or with subsequently acquired options can be filed here NOTICE Possible impairment of the functioning of the instrument The instrument is equipped with the Linux operating system It is thus possible to install COTS software in the instrument The use and installation of commercial off the shelf COTS software may impair the instrument function For this reason we recommend that you only execute programs tested by Rohde amp Schwarz with regard to their compatibility with the instrument software In certain cases the use of these programs can impair the performance of the instrument The drivers and programs used in the instrument under Linux have been adapted to the test instrument Existing instrument software must only be modified with update software released by Rohde amp Schwarz Installation of New R amp S SMC Firmware Your R amp S SMC is delivered with the latest firmware version available Firmware updates as well as the Release Notes describing the improvements and modifications are provided on the Internet at the download site of the R amp S SMC homepage http www rohde schwarz com product smc100a This homepage always offers the latest informatio
43. AY gt PM gt Recommended test frequencies 23 4375 MHz 99 9 MHz 399 9 MHz 799 9 MHz 1100 MHz 1599 9 MHz 1600 1 MHz 2262 9 MHz 3200 MHz Limits according datasheet gt Measure the resulting phase modulation with peak detection peak 2 value 1411 4060 82 1 31 E 3 Test Procedures Frequency Modulation Test Methods Test assembly Test Method FFT Demodulation Option FS K7 FM Setting Uncertainty Test Method Measurement Recommended settings 1411 4060 82 R amp S SMC100A See section Standard Test Assembly for Analog Modulations page 1 3 The FM deviation and distortion are determined by digital signal processing in the spectrum analyzer gt Settings on R amp S FSQ AMPTD REF LEVEL test level FREQ CENTER test frequency FMDEMOD FMDEMOD ON RESULT DISPLAY FM resp PM DEMOD BW gt 2 deviation fmod for FM DEMOD BW gt 2 fmod 1 deviation for PM RANGE DEVIATION PER DIV 0 5 deviation MEAS TIME 3 fmod for distortion up to 3 harmonic RESULT DISPLAY FM resp PM AF SPECTRUM DEMOD BW gt 2 deviation 3 5 fmod for FM DEMOD BW gt 7 fmod 1 deviation for PM MEAS TIME 16 fmod FFT Demodulation see chapter Test Methods Settings on DUT RF On Level 0 dBm Frequency Modulation menu State on FM Source Internal Recommended test frequencies 10 MHz 1000 MHz with LFGen Freq 1 kHz FM Deviation 100 kHz Repeat measurement at 1000 M
44. B1 see page 3 57 and perform this test again If still failing most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 If the 10 MHz reference signal is in tolerance most probably the Reference Oscillator R amp S SMC B1 is defective Check this module being supplied correct see page 3 28 LFGen Output Faulty R amp S SMC100A settings LFGen Stat off Measure the input resistance of the LF signal output with a multimeter The input resistance should be 10 Q 10 Q Check the connection of cable W215 to the RF Board see page 3 52 If it is connected correct most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 R amp S SMC100A settings Setup Reference internal LFGen Stat on LFGen Level 1 V LFGen Frequency 100 kHz Attention LF specification applies to loads greater or equal 50 Q only Check the level at the LF BNC Connector with an oscilloscope or voltage meter Check the frequency and harmonic distortion with an oscilloscope with FFT functionality or with a spectrum analyzer Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 MOD Ext Input Faulty Measure the input resistance of the Mod Ext BNC connector signal with a multimeter The input resistance should be 221 kQ 20 Check the connection of cable W214 to the RF Board see page 3 52
45. C100A secures itself against damage due to overheating Fan Controller A Fan for cooling the RF modules is connected to the Basis Board and directly controlled according to the temperature of the Basis Board This is done independent of the controller 1411 4060 82 3 6 E 2 R amp S SMC100A Troubleshooting Troubleshooting The purpose of these troubleshooting instructions is to help to trace down malfunctions to board level The instrument can thus be made ready for use again by means of board replacement If error tracing doesn t show clear results we recommend that you ship your instrument to our experts in the service centers see address list for module replacement and further error elimination Some module replacements involve calibration procedures requiring calibrated equipment and appropriate software CAUTION Danger of shock hazard For module replacement ensure that the instrument is switched off and disconnected from the power supply by removing the plug from the and DC power connector Read all safety instructions at the beginning of this manual carefully before module replacement NOTICE Risk of damage to the boards Be careful not to cause short circuits when measuring voltages at pins placed close together The following utilities are provided in the signal generator for easy diagnosis Internal selftest Internal diagnosis test points Internal adjustments Info line with error messages and history of m
46. HIPCARD SMC100A VS 6900 ISR M2 5X8 A2 COMBINATION SCREWS MZ USB NETZTEILWINKEL USB POWER SUPPLY HOLDER VS 7985 ISR M3X6 A4 PA SCREW NJ SCHALTNETZTEIL AC90 264V POWER SUPPLY MZ NETZTEILHALTERUNG 1 2 POWER SUPPLY HOLDER VS 965 ISR M2 5X4 A4 PA 965 ISR M2 5X4 A4 PA MZ UNTERLEGBLECH HOLDER DZ KABELBI RD 1 BIS 25 B2 CABLETIE VS 965 ISR M2X5 A4 PA 965 ISR M2X5 A4 PA ED RF BOARD RF BOARD VS 7985 ISR M2 5X16 A4 PA 7985 ISR M2 5X16 A4 PA FJ FAECHERSCHEIBE SERRATED LOCKWASHER FJ MUTTER HEX 14 1 2 28UNEF HEX 14 NUT 1 2 28UNEF ZM FRONTEINHEIT SMC NEUES DISPLAY FRONT UNIT SMC VS 965 ISR M2 5X4 A4 PA 965 ISR M2 5X4 A4 PA DY KABEL BB RF BOARD CABLE BB RF BOARD KB FRONTHAUBE SMC BEDRUCKT FRONT COVER SMC PRINTED KB R CKWAND 2 SMC BEDRUCKT REAR PANEL 2 SMC PRINTED Benennung Designation SMC100A SIGNAL GENERATOR ROHDE amp SCHWARZ SMC100A SIGNAL GENERATOR Datum Date Abt Dept Name Name 2010 03 23 1GPK 0999 9684 00 1411 4348 02 1406 6700 04 1411 4883 00 0041 1653 00 1411 4331 00 1148 2630 00 1406 7336 00 1411 4277 00 1148 3271 00 1411 4260 00 0015 9038 00 1148 3265 00 1411 4402 02 1148 2869 00 3583 1578 00 3583 1561 00 1411 4802 02 1148 3271 00 1406 8110 00 1411 4683 00 1411 4302 00 Sprach Lang C Blatt Sheet de en 09 00 10f2 Dokument Nr Document No 1411 4002 01 ST F r diese Unterlage behalten wir u
47. Hz with changing settings to FM Source External FM Ext Coupling AC feed in a 1 kHz 1Vp external modulation signal at the MOD EXT connector 1 32 E 3 R amp S SMC100A FM Distortion Test Method Measurement Recommended settings 1411 4060 82 Test Procedures FFT Demodulation see chapter Test Methods gt Settings on DUT RF On Level 0 4 Frequency Modulation menu State on FM Source Internal LFGen Frequency 2 kHz Settings on R amp S FSQ DEMOD BW 5 FM deviation RANGE DEVIATION PER DIV 250 kHz RESULT DISPLAY FM AF SPECTRUM SWEEP MEAS TIME 50 ms FREQ AF STOP 50 kHz Read the THD from the display To convert to percent calculate THDpct 100 10 THDdB 20 CF sweep Recommended test frequencies with FM deviation 250 kHz 10 MHz with FM deviation 500 kHz 400 1 MHz 533 MHz 667 MHz 800 MHz with FM deviation 1 MHz 1100 MHz with FM deviation 2 MHz 3200 MHz 1 33 E 3 Test Procedures R amp S SMC100A FM Frequency Response Test Method FFT Demodulation see chapter Test Methods Measurement gt Settings on DUT RF On Level 0 dBm Frequency 23 MHz Frequency Modulation menu FM Source External FM Ext Coupling DC FM deviation 100 kHz gt Setting on the signal generator The internal LF generator of the signal generator delivers the modulation signal to the external modulation input of the DUT The level of the modulation signal is controlled by use of an
48. ILTER to 20 Hz and the LOW PASS AF FILTER to 23 kHz Limits and filters according datasheet Test Procedures R amp S SMC100A Example IFB 2 MHz Ref 0 Hz Att 30 dB AQT 50 ms e p rd CLRWR Center 1 GHz 5 ms Frequency Modulation Summary Coupling DC Carrier Offset 45 639 Hz Deviation peak 12 953 HE Carrier Power 0 91 dBm 12 41 HE Modulation Frequency Hz peak 2 12 67 Hz Sampling Rate 250 kHz RMS 3 465 Hz Record Length 12501 Demod Bandwidth 200 kHz AF Filter HP 20 Hz LP 23 kHz Date 22 FEB 2008 17 35 25 Residual FM 3 465 Hz 1411 4060 82 1 18 E 3 R amp S SMC100A Residual AM Test assembly Test method Measurement 1411 4060 82 Test Procedures Connect spectrum analyzer to RF socket of the DUT The FM demodulator of the analyzer is used to AM demodulate the CW signal of the DUT By setting the AF low pass and high pass filters the RMS value in the desired bandwidth can be measured The value displayed is the sum of the analyzer residual AM and the DUT residual AM Because they are uncorrelated the displayed result is worse than residual RMS of the DUT alone Therefore if the sum is in tolerance according to the data sheet the DUT is also in tolerance gt Settings on DUT frequency 1 GHz Level 0 dBm gt Settings on analyzer CENTER 1 GHz REFERENCE LEVEL 1 dBm AMPT gt RF ATTEN MANUAL 10 dB FM
49. KET PLATE SMC DW HF KABEL W212 RF FRONT L HF CABLE W212 RF FRONT L VS 7985 ISR M2X4 A4 PA 7985 ISR M2X4 A4 PA VS DIN125 A2 5 A4 WASHER DIN125 DV KABEL W214 MOD EXT RFBOARD CABLE W214 MOD EXT RFBOARD DV KABEL W215 LF RFBOARD CABLE W215 LF RFBOARD Benennung Designation FRONTANSCHLUSSPLATTE ROHDE amp SCHWARZ FRONT CONNECTOR PLATE Datum Date Abt Dept Name Name 2008 07 18 1GPK WB 1411 4648 00 1411 4390 00 1148 2698 00 0082 4657 00 1406 8149 00 1406 8132 00 Sprach Lang C Blatt Sheet deen 03 00 1 of 1 Dokument Nr Document No 1411 4748 00 ST 1411 4060 82 ROHDE amp SCHWARZ R amp S SMC100A Mechanical Drawings 5 9 M e AA Zeichn Nr Drawing No D e e iN S H e e SMC100A SIGNAL GENERATOR SMC100A SIGNAL GENERATOR So Ee ye Es d 3 FEST ROHDERSCHWARZ 720 mittig in L f P o ment ittig EEN au os aufkleben auf IEC Buchse AL aufstecken wenn ff an SMC K4 nic aktiviert ist W222 A100 X103 Du wp ee ee te EG EE schieben oo c 3 oOococo o n o QN 4 4 E o En 3 D E X wi ur oc ye 3 Dk 00 Zo nN a zee 3 Z5 So Y Cease CA Z E SES li 5 d be 29 45 ES O N AAA E j AY xu We f AN f 7 V LO
50. S SMC100A Keyboard and Rotary Knob Test e This utility allows you to check for proper operation of all front panel control elements Normal action Error possible causes and corrective action Test called with SETUP Check Front Panel An image of the front panel appears with gray keys Note Be careful with the rotary knob Turn only slightly in the When a key is pressed once or the knob is moved the field specified direction otherwise the field will change to changes to green red If the key is pressed more than once the field changes to red When all operating elements including the rotary knob have If the color changes to red at the first actuation a malfunction been actuated once all fields are green If operating elements has occurred bouncing have been actuated twice the fields are red If the color of the corresponding field remains the same after actuation the function is defective In either case Change the switching pad and or rotary knob A message is output when all keys have been pressed Note No error message is output even if a number of keys are red The user must decide whether a malfunction has occurred All Front Panel Keys were accessed correctly 1411 4060 82 3 12 E 2 R amp S SMC100A Troubleshooting Troubleshooting with Internal Self Test The internal selftest checks the instrument by measuring internal diagnostic points In case of an instrument fail this check sh
51. Service Manual Signal Generator R amp S SMC100A 1411 4002K02 ROHDE amp SCHWARZ Test and Measurement 1411 4060 82 04 1 Dear Customer throughout this manual the Signal Generator R amp S SMC100A is abbreviated as R amp S SMC100A The firmware of the instrument makes use of the operating system LINUX and other valuable open source software packages The most important of them are listed below together with their corresponding open source license The verbatim license texts are provided on the user documentation CD ROM included in delivery Package Link License LINUX Kernel http www linux org GPL2 gLibc http www gnu org software libc LGPL busybox http www busybox net GPL 2 OpenSSL http www openssl org OpenSSL SSLeay XFree86 http www xfree86 org XFree86 Xitami http www xitami com NetSnmp 5 0 8 PHP http www php net 2 5b6 OpenSSL http www openssl org BSD BOOST Library http www boost org Artistic zlib http www zlib net Boost Software v 1 PC SC Lite http www linuxnet com ACE TAO The OpenSSL Project for use in the OpenSSL Toolkit http www openssl org includes cryptographic software written by Eric Young eay cryptsoft com and software written by Tim Hudson tih cryptsoft com LINUX is a trademark of Linus Torvalds Rohde amp Schwarz would like to thank the open source community for their valua
52. Settings of the spectrum analyzer RF INPUT DC AMPT REF LEVEL 20 dBm FREQ CENTER LF Gen Frequency MEAS HARMONIC DISTOR RF ATTEN MANUAL increase by 10 dB gt Read the THD gt Repeat the measurement at the recommended test frequencies by changing the DUT LF Gen Frequency and the analyzer center frequency 1 kHz 10 kHz 1 25 E 3 R amp S SMC100A Test Procedures Level Accuracy and Frequency response Test equipment Test method Test setup Measurement of Level Accuracy Recommended test levels for Level Accuracy Measurement Recommended test frequencies AC voltmeter Table 1 1 item 14 The output level of the LF Generator is measured direct with an voltmeter gt Connect the AC voltmeter to the LF socket of the DUT gt Settings on DUT LF Output menu LF Gen Frequency 1 kHz set LF Output Voltage to recommended levels and measure the output level 10 mV 30 mV 100 mV 300 mV 1 V and 2 55 V gt Settings on DUT LF Output menu LF Output Voltage 1 V set LF Gen Frequency to recommended test frequencies and measure the output level gt Determine the highest and the lowest level Vmax and Vmin The frequency response in dB is defined as D 20 log10 Vmax 20 l0910 V min 10 Hz 1 kHz 10 kHz 100 kHz Note The settling time is a pure computer time and needs therefore not to be measured 1411 4060 82 1 26 E 3 R amp S SMC100A Amplitude Modulation AM Setting Uncertainty
53. State on PhiM Source Internal PhiM Deviation 2 5 rad LFGen Freq 1 kHz Settings on spectrum analyzer see chapter Test Methods Recommended test frequencies 10 MHz and 400 MHz Repeat measurement at 400 MHz with changing settings to PhiM Source External PhiM Ext Coupling AC feed in a 1 kHz external modulation signal at MOD EXT connector 1 37 E 3 Test Procedures PhiM Distortion Test Method Measurement Recommended settings 1411 4060 82 gt R amp S SMC100A FFT Demodulation see chapter Test Methods Settings on DUT RF On Level 0 dBm Phase Modulation menu State on PhiM Source Internal LFGen Frequency 10 kHz Settings on R amp S FSQ see chapter Test Methods SWEEP MEAS TIME 50 ms FREQ AF STOP 50 kHz AMPTD REF LEVEL 0 4 CENTER test frequency Read THD from the Display To convert to percent calculate THDpct 100 10 THDdB 20 CF sweep Recommended test frequencies with deviation 2 5 rad 10 MHz with deviation 5 400 1 MHz 533 MHz 667 MHz 800 MHz with PhiM deviation 10 rad 1100 MHz with PhiM deviation 20 rad 3200 MHz 1 38 E 3 R amp S SMC100A Test Procedures PhiM Frequency Response Test method FFT Demodulation see chapter Test Methods Measurement gt Settings on DUT RF On Level 0 dBm Phase Modulation menu PhiM Source External PhiM Ext Coupling DC PhiM deviation 5 rad gt Setting on the signal generato
54. TAGEWANNE SMC MOUNTING THROUGH SF SCHALTFOLIE SMC FLEX SWITCH BOARD SMC SF SILIKONMATTE SMC PUSH BUTTON BOARD SMC MM TASTATURRAHMEN SMC KEY FRAME VS 965 ISR M2X5 A4 PA 965 ISR M2X5 A4 PA VS 965 ISR M2X8 A4 965 ISR M2X8 A4 ND TFT 3 5 QVGA DRGB LED 180MM KABEL TFT 3 5 QVGA DRGB LED 180MM EK KONTAKTFEDER CONTACT SPRING ZN SCHIRMBLECH SHIELDING ED ENCODER BOARD ENCODER BOARD VS 6900 ISR M2 5X6 A2 COMBINATION SCREWS DF FLEX STRIP 10P R 0 5 FLEX STRIP ZM FRONTANSCHLUSSPLATTE FRONT CONNECTOR PLATE OK DREHKNOPF RD20 KNOB Benennung Designation 1411 4825 00 1411 4848 00 1411 4654 00 1411 4819 00 1148 3265 00 0041 1601 00 3586 0172 00 1406 7713 00 1411 4831 00 1300 3044 02 1148 3059 00 1146 9150 00 1411 4748 00 2112 6131 00 FRONTEINHEIT SMC NEUES DISPLAY ROHDE amp SCHWARZ FRONT UNIT SMC 2010 03 11 Sprach Lang C Blatt Sheet de en 01 00 1 of 1 Dokument Nr Document No 1411 4802 01 ST Abt Dept Datum Date 1ZKS Neme KE F r diese Unterlage behalten wir uns alle Rechte vor Ausgedruckte Dokumente unterliegen nicht dem nderungsdienst For this document all rights are reserved Printed documents are not subject to revision Pos Nr Menge ME El Kennz Benennung Bezeichnung 7 Sachnummer Ersatzteil BA VH ItemNo Quantity Unit bet Des Designation Stock No Subst part ACHTUNG EGB ATTENTION ESD MF BUCHSENPLATTE SMC SOC
55. Test assembly Measurement of accuracy versus modulation depth Recommended modulation depths 1411 4060 82 Test Procedures See section Standard Test Assembly for Analog Modulations page 1 3 gt gt gt m Settings on DUT RF On Frequency 150 MHz Level 0 dBm Amplitude Modulation On AM Source Internal LF Gen Frequency 1 kHz Settings on analyzer gt REF LEVEL test level 6 dB FREQ gt CENTER 150 MHz FM DEMOD FMDEMOD ON RESULT DISPLAY gt AM DEMOD BW 50 kHz RANGE gt DEVIATION PER DIV 20 MEAS TIME 100 ms set the AM Depth to the recommended modulation depths and read the modulation depth peak 2 from the analyzer set DUT to AM Source External AM Ext Coupling AC AM Depth 80 LF Gen Output On Connect LF output to MOD EXT input and read the modulation depth peak 2 from the analyzer 5 10 96 20 40 60 80 96 1 27 E 3 Test Procedures Measurement of accuracy versus RF Recommended test frequencies 1411 4060 82 gt R amp S SMC100A Settings on DUT RF On Frequency recommended test frequencies Level 0 dBm Amplitude Modulation On AM Source Internal LF Gen Frequency 1 kHz AM Depth 80 Settings on analyzer AMPTD gt REF LEVEL 6 dBm FREQ gt CENTER same as DUT FM DEMOD FMDEMOD ON RESULT DISPLAY gt AM DEMOD BW 50 kHz RANGE gt DEVIATION PER DIV 20 MEAS TIME 100 ms measure the modulation depth for all recommended test
56. V 1411 4060 82 3 15 E 2 Troubleshooting R amp S SMC100A Troubleshooting with Internal Adjustments Various internal adjustments are necessary for correct operation of the instrument The failure of a certain adjustment can shorten troubleshooting considerably The affected module is the RF Board module Note Failed internal adjustments can also be queried on the info page gt History Normal action Error possible causes and corrective action Internal adjustments call Abort during adjustment SETUP Internal Adjustments Adjust All The adjustments are all carried out exclusively on the RF Board only the Diagnostic A D converter on the Basis Board is needed Check the Test Points on the Basis Board see page 3 14 Internal adjustment of the RF Board is executed Ifthe Test Points on the Basis Board are in tolerance most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 If not in tolerance check the Basis Board see page 3 21 1411 4060 82 3 16 E 2 R amp S SMC100A Instrument Faults Troubleshooting The following table lists R amp S SMC100A Faults For every fault additional test are described to determine the defective module Fault Test Action if test fails RF Output Level is wrong R amp S SMC100A settings Instrument Preset Reference internal Level 8 dBm Measure the Output Level with a power me
57. V 12 4 14 2 V 2 13V2 F6 DV 14 2 V 124 V 1 5V STBY F9 4 7 V 5 3V 4 7 V 5 3V 13 gt 3V lt 0 8V 14 20 GND GND 28V 0v 25 8V 30 2V 7V DV 6 4V 7 6V 3V3 0v 3 1V 3 5V 3V0 DV 2 85V 3 15V 2V5 DV 2 3V 2 7V 1V8 0v 1 7V 1 9V 1V2 DV 1 15V 1 25V em X wu H gos US T X117 9 a a i 2 1302 Fig 3 4 Power Supply Test Points of the Basis Board 1411 4060 82 3 21 Troubleshooting R amp S SMC100A Fuses Switch on the R amp S SMC100A and measure the voltage drop across the fuses F7 yellow marked see Fig 3 4 with a multimeter The voltage across every fuse should be in the range 100 mV 100 mV The fuses might be blown due to defective module other than the Basis Board If one of the fuses is blown replace the fuse with the correct type given below Remove connection W222 to the RF Board and the flex strip cable of the display A330 to the Basis Board Switch on the R amp S SMC100A and check the voltage drop across the fuses after two minutes again If one of the fuses is blown again the Basis Board is defective Ifthe fuses are OK switch of R amp S SMC100A again and then connect the display and switch on the R amp S SMC100A again If one of the fuses is blown afte
58. VSWR bridge from the DUT and let the test port open Increase the level of the second signal generator until the voltage on the analyzer is Vre 0 5 gt Screw the VSWR bridge onto the DUT again gt Measure the maximum voltage Vmax and minimum voltage Vmin of the sinusoidal trace Calculate the VSWR VSWR Vmax Vmin gt Test frequencies from 200 kHz every 50 MHz up to RF max gt Test levels 0 dBm and 13 dBm 1 23 E 3 Test Procedures R amp S SMC100A Setting Time only for Option R amp S 5 4 Test assembly Connect the spectrum analyzer Table 1 1 item 18 to the RF connector of the DUT Test method The spectrum analyzer is operated as a fast level meter in zero span A controller transfers the start and the stop level via the IEC IEEE bus The analyzer is triggered by the positive edge on the line of the IEC IEEE bus At switch over from start to stop level the settling procedure is displayed on the screen of the analyzer Preparation of measurement Synchronize the reference frequencies of the DUT and the analyzer Make IEC IEEE bus and RF connections Connect spectrum analyzers trigger connector to EOI line pin 5 of IEC IEEE bus Setting on DUT Frequency test frequency unmodulated Level start level Settings on spectrum analyzer REFERENCE LEVEL target level 3 dB AMPLITUDE LOG RANGE 10 dB RESOLUTION BANDWIDTH 200 kHz VIDEO BANDWIDTH 2 MHz SPAN 0 Hz SWEEP TIME
59. aY A OXN E X d ES III N Rei Mm O x 4 N 0 O p 8 u c x 9 Oo E N lt x Gu O p c zou m m o 24 nn A S paasasas JD S YBIs 0 jueun2op 514 404 zz JOA SUN JIM Juswnyoq seseip An E D Pos 104 7x 1411 4348 01 Sprache Lang JAci C I Blatt Sh de 05 00 Zeichn Nr Drawing No HOS 05 vorne CHASSIS SMC CHASSIS SMC links oleranz ol Benennung Designation Dote 2008 02 28 2x 0 6m Dichtschnur Fronteinheit innen Tubuskontaktierung aussen in jeweilige Nut eindr cken Enden mit kleinen Punkten Silicon gegen Ausfransen sichern ROHDE amp SCHWARZ gt c 4 c 23 Cc o gt E Q o0 E lt Pos 50 5x rechts Ansicht von oben parsasas asd SIu I jueun2op SIY JOY JOA 8 4994 9 D SUN JIM jueunxo Seselp Jny 12 10 lt D Schn Nr 7 Drawing No 1411 4802 01 OF 0 E 2 gt kE ZU D LL gt lt dech A 0 Q 0 2 2 2 o o G t LLI 26 I 2 1 E iz iy 14 de ROHDE amp SCHWARZ erst nach der Montage durch den Kabelanschluss der Schaltfolie Blechdurchbruch Ziehen Silikonmatte vorsichtig ohne VVerkzeug an der Trennfuge auseinander reissen
60. ada de l quidos En caso contrario existe peligro de choque el ctrico para el usuario o de da os en el producto que tambi n pueden redundar en peligro para las personas No utilice el producto en condiciones en las que pueda producirse o ya se hayan producido condensaciones sobre el producto o en el interior de ste como p ej al desplazarlo de un lugar fr o a otro caliente La entrada de agua aumenta el riesgo de choque el ctrico Antes de la limpieza desconecte por completo el producto de la alimentaci n de tensi n p ej red de alimentaci n o bater a Realice la limpieza de los aparatos con un pa o suave que no se deshilache No utilice bajo ning n concepto productos de limpieza qu micos como alcohol acetona o diluyentes para lacas nitrocelul sicas Funcionamiento 1 2 3 4 El uso del producto requiere instrucciones especiales y una alta concentraci n durante el manejo Debe asegurarse que las personas que el producto esten a la altura de los requerimientos necesarios en cuanto a aptitudes fisicas psiquicas y emocionales ya que de otra manera no se pueden excluir lesiones o da os de objetos El empresario u operador es responsable de seleccionar el personal usuario apto para el manejo del producto Antes de desplazar o transportar el producto lea y tenga en cuenta el cap tulo Transporte Como con todo producto de fabricaci n industrial no puede quedar excluida en general la posibilidad
61. address of your representative on our homepage www rohde schwarz com Navigate to Service amp Support Service Locations Shipping the Instrument We require the following information in order to answer your inquiry fast and correctly and to determine whether the warranty is still valid for your instrument Instrument model Serial number Firmware version Must the instrument be returned with this firmware Detailed error description in case of repair Indication of desired calibration Contact person for possible questions In some countries an RMA process is available for the return shipment of the instrument For details contact your local representative When shipping the instrument be careful to provide for sufficient mechanical and antistatic protection e Use the original packaging for transporting or shipping the instrument The protective caps for the front and rear prevent damage to the operating elements and the connectors e If you do not use the original packaging provide for sufficient padding to prevent the instrument from slipping inside the box Wrap antistatic packing foil around the instrument to protect it from electro static charging Rohde 8 Schwarz offers repair and calibrations of the test systems it produces The calibration documentation fulfills ISO 17025 requirements Shipping Defective Modules Also when shipping a module be careful to provide for sufficient mechanical and antistatic protection e
62. age RF Board Signal RF Board Signal RF Board Signal RF Board Signal Clock signal 4 5 1 serial b s B1 NC C1 GND D1 55V Data signal DV 0v A2 to option B2 when C2 NC D2 when serial bus Oven Cold option fitted Chip Select Data signal 5 0V A3 signal B3 from option C3 when D3 10 MHz serial bus serial bus option on LVDS signal A4 NC B4 NC C4 NC D4 A5 NC B5 NC C5 GND D5 GND 4 5V 4 5V 10 5 AG 5 5 V Bo 5 5 V 98 125 96 SR 1411 4060 82 3 28 E 2 R amp S SMC100A Troubleshooting Error Messages Concerning the Reference Oscillator Module Error message Error correction gt 10 MHz oven cold gt If this message does not disappear after 10 minutes OCXO is defective change the module gt Synchronization error on internal reference gt Switch the R amp S SMC100A to external Reference and supply a 10 MHz 10 dBm signal to the Reference Input of the RF BOARD If the error disappears and the R amp S SMC100A is working correct the OCXO is defective change the module gt OCXO cannot read EEPROM data gt This indicates problems concerning the data transfer from and to the EEPROM of the module If changing the module does help gt cannot store adjustment data change the RF Board module Frequency Error Reference Oscillator Adjustment Error Error correction Internal reference frequency gt frequency accuracy of the synthesizer is
63. and are thus easily available whenever they are required CAUTION Danger of shock hazard For module replacement ensure that the instrument is switched off and disconnected from the power supply by removing the plug from the AC and DC power connector Read all safety instructions at the beginning of this manual carefully before module replacement NOTICE Danger of damage to components of the module Protect the operational site against electrostatic discharge to avoid damage to electronic components of the modules For details refer to the safety instructions at the beginning of this manual The SETUP Installed Options menu provides information on the already installed options 1411 4060 82 4 2 E 2 R amp S SMC100A Installing the Options Software Options All available software options are already included in the latest firmware They are ready to operate after they are enabled by means of a key code supplied with the option Only if the R amp S SMC is equipped with an older firmware version a firmware update prior to enabling the software option may be required The information on the valid firmware versions for the purchased software option is provided together with the option The key code is to be entered into the SETUP Install SW Option menu Le ELE R Option Key ook The SETUP Installed Options m
64. ar transporte hasta 4500 m sobre el nivel del mar Se aplicar una tolerancia de 10 sobre el voltaje nominal y de 5 sobre la frecuencia nominal N No sit e el producto encima de superficies veh culos estantes o mesas que por sus caracter sticas de peso o de estabilidad no sean aptos para l Siga siempre las instrucciones de instalaci n del fabricante cuando instale y asegure el producto en objetos o estructuras p ej paredes y estantes Si se realiza la instalaci n de modo distinto al indicado en la documentaci n del producto pueden causarse lesiones o incluso la muerte o No ponga el producto sobre aparatos que generen calor p ej radiadores o calefactores La temperatura ambiente no debe superar la temperatura m xima especificada en la documentaci n del producto o en la hoja de datos En caso de sobrecalentamiento del producto pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte 1171 0000 42 05 00 Page 8 Informaciones elementales de seguridad Seguridad electrica Si no se siguen o se siguen de modo insuficiente las indicaciones del fabricante en cuanto a seguridad el ctrica pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte 1 10 11 Antes de la puesta en marcha del producto se deber comprobar siempre que la tensi n preseleccionada en el producto coincida con la de la red de alimentaci
65. ardous substances heavy metal dust such as lead beryllium nickel may be released For this reason the product may only be disassembled by specially trained personnel Improper disassembly may be hazardous to your health National waste disposal regulations must be observed 2 If handling the product releases hazardous substances or fuels that must be disposed of in a special way e g coolants or engine oils that must be replenished regularly the safety instructions of the manufacturer of the hazardous substances or fuels and the applicable regional waste disposal regulations must be observed Also observe the relevant safety instructions in the product documentation The improper disposal of hazardous substances or fuels can cause health problems and lead to environmental damage Informaciones elementales de seguridad Es imprescindible leer y observar las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde amp Schwarz consiste en tener nuestros productos siempre al d a con los est ndares de seguridad y de ofrecer a nuestros clientes el m ximo grado de seguridad Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados seg n las normas de seguridad vigentes Nuestro sistema de garant a de calidad controla constantemente que sean cumplidas estas normas El presente producto ha sido fabricado y examinado seg n el certificado de conformidad adjunto de la UE y ha sali
66. bably the RF Board is defective Check the RF Board being supplied correct see page 3 23 10 MHz Reference Input faulty Check the 10 MHz reference signal fed into the R amp S SMC100A with a spectrum analyzer or frequency counter and power meter If level and frequency of this signal is matching the specification in the datasheet set the R amp S SMC100A to Instrument Preset Reference external RF on Frequency 1 GHz Level 0 dBm Check for error Messages No External Reference Errors are allowed to occur Measure output frequency with a spectrum analyzer or a frequency counter synchronized to the same reference The frequency error has to be lt 0 1 Hz Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 1411 4060 82 3 18 R amp S SMC100A Troubleshooting Fault Test Action if test fails 10 MHz Reference Output faulty R amp S SMC100A setting Setup Reference internal Measure 10 MHz reference output signal with spectrum analyzer or frequency counter and power meter Output frequency and level have to meet the specifications given in the data sheet R amp S SMC100A without Reference Oscillator R amp S SMC B1 Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 R amp S SMC100A with Reference Oscillator R amp S SMC B1 Remove the Reference Oscillator R amp S SMC
67. ble contribution to embedded computing R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners 1411 4060 82 04 R amp S SMC100A Chapter Overview Chapter Overview Index Safety Instructions Customer Information Regarding Product Disposal Certificate of Quality Customer Support Procedure in Case of Service and Ordering of Spare Parts Contents of Service Manual for the Signal Generartor R amp S SMC100A Chapter 1 Performance Test Chapter 2 Procedures after Module Replacement Chapter 3 Repair Chapter 4 Software Update Installing Options Chapter 5 Documents 1411 4060 82 RE E 3 R amp S SMC100A Index A Adjustments utto met e Es 2 1 Amplitude modulation Test 1 26 1 31 B Boot problems Troubleshooting oda ens 3 11 C Check Rated characteristics sss 1 1 Check Front Panel 3 12 D AMA btc as 3 14 Ren 5 1 External level correction 2 3 Fan does not work 3 10 Firmware update Frequency Error Internal Adjustments 3 16 L Level Test procedure cti det Modus 1 20 M Measuring equipment Troubleshooting AAs hate tud 3 7 Modulation Analog Test assembly dp a aee 1 3 Modulation generator Test orocedurmge sss Module replacement Br X Modules overview
68. componentes el ctricos y puede causar lesiones fuego o da os en el producto 1171 0000 42 05 00 Page 9 12 13 14 15 16 17 18 Informaciones elementales de seguridad Si un producto se instala en un lugar fijo se deber primero conectar el conductor de protecci n fijo con el conductor de protecci n del producto antes de hacer cualquier otra conexi n La instalaci n y la conexi n deber n ser efectuadas por un electricista especializado En el caso de dispositivos fijos que no est n provistos de fusibles interruptor autom tico ni otros mecanismos de seguridad similares el circuito de alimentaci n debe estar protegido de modo que todas las personas que puedan acceder al producto as como el producto mismo est n a salvo de posibles da os Todo producto debe estar protegido contra sobretensi n debida p ej a una ca da del rayo mediante los correspondientes sistemas de protecci n Si no el personal que lo utilice quedar expuesto al peligro de choque el ctrico No debe introducirse en los orificios de la caja del aparato ning n objeto que no est destinado a ello Esto puede producir cortocircuitos en el producto y o puede causar choques el ctricos fuego o lesiones Salvo indicaci n contraria los productos no est n impermeabilizados ver tambi n el cap tulo Estados operativos y posiciones de funcionamiento punto 1 Por eso es necesario tomar las medidas necesarias para evitar la entr
69. cury or cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling Transport 1 The product may be very heavy Therefore the product must be handled with care In some cases the user may require a suitable means of lifting or moving the product e g with a lift truck to avoid back or other physical injuries 1171 0000 42 05 00 Page 5 Informaciones elementales de seguridad 2 Handles on the products are designed exclusively to enable personnel to transport the product It is therefore not permissible to use handles to fasten the product to or on transport equipment such as cranes fork lifts wagons etc The user is responsible for securely fastening the products to or on the means of transport or lifting Observe the safety regulations of the manufacturer ofthe means of transport or lifting Noncompliance can result in personal injury or material damage 3 If you use the product in a vehicle it is the sole responsibility of the driver to drive the vehicle safely and properly The manufacturer assumes no responsibility for accidents or collisions Never use the product in a moving vehicle if doing so could distract the driver of the vehicle Adequately secure the product in the vehicle to prevent injuries or other damage in the event of an accident Waste disposal 1 If products or their components are mechanically and or thermally processed in a manner that goes beyond their intended use haz
70. cy error in the rated temperature range and from aging 1411 4060 82 1 7 E 3 Test Procedures R amp S SMC100A Input for External Reference Test equipment Frequency counter Table 1 1 item 1 Signal generator Table 1 1 item 5 Test method The external reference input frequency of the DUT is varied according to the data sheet and the RF output signal frequency is controlled with a frequency counter to follow this variation Preparation of measurement gt Connect the signal generator RF output to the REF IN input for the external reference on rear panel of the DUT Connect a calibrated frequency counter to the RF output Synchronize the signal generator and the frequency counter gt Setting on DUT RFon Level 0 dBm suitable level for the frequency counter Frequency 1 GHz Setup gt Reference Oscillator gt Source External gt Setting on signal generator RFon Level 0 dBm Measurement gt Set the signal generator frequency to 9 99997 MHz and 10 0003 MHz Measure the output frequency of the DUT Signal generator frequency 9 99997 MHz 10 0003 MHz DUT frequency 999 997 MHz 1000 03 MHz There must be no relative frequency error and no error message in the display of the DUT 1411 4060 82 1 8 E 3 R amp S SMC100A Frequency Frequency Setting Test method Measurement Test Procedures The frequency setting is checked by running the internal synthesizer adjustmen
71. determined set to internal MN reference by a highly stable oven controlled 10 MHz quartz oscillator that is Frequency error greater than limit given in set to a calibrated frequency standard at the R amp S factory This oscillator is datasheet subject to ageing and can be recalibrated see chapter 2 Adjustment of internal Reference Frequency Note The internal reference can be tuned by up to approx 10 under the menu Setup Reference Oscillator Adjustment This setting does not affect the factory adjustment and can be reset at any time by means of deactivation 1411 4060 82 3 29 E 2 Module Replacement R amp S SMC100A Module Replacement This section describes in detail the replacement of modules Chapter 5 provides information on how to order spare parts it contains the list of mechanical parts with order numbers and the illustrations for module replacement Required tools e Star screwdriver TX 20 e Star screwdriver TX 8 Star screwdriver TX 6 e Side cutter e Flat pliers e Forceps e Tubular box wrench or a combinations wrench 16mm e Torque wrench 8mm Notice Urgent Please screw all the HF conductions with the Torque wrench 60 Ncm and NOT with an ordinary open end wrench Please wear gloves when you touch the electronic devices Overview of the Modules Table 3 1 Overview module replacement Power Supply AC 90 V to 264 V TFT 3 5 QVGA DRGB LED 180MM Note The words left and right in the manua
72. do de nuestra planta en estado impecable seg n los est ndares t cnicos de seguridad Para poder preservar este estado y garantizar un funcionamiento libre de peligros el usuario deber atenerse a todas las indicaciones informaciones de seguridad y notas de alerta El grupo de empresas Rohde amp Schwarz est siempre a su disposici n en caso de que tengan preguntas referentes a estas informaciones de seguridad Adem s queda en la responsabilidad del usuario utilizar el producto en la forma debida Este producto est destinado exclusivamente al uso en la industria y el laboratorio o si ha sido expresamente autorizado para aplicaciones de campo y de ninguna manera deber ser utilizado de modo que alguna persona cosa pueda sufrir da o El uso del producto fuera de sus fines definidos o sin tener en cuenta las instrucciones del fabricante queda en la responsabilidad del usuario El fabricante no se hace en ninguna forma responsable de consecuencias a causa del mal uso del producto 1171 0000 42 05 00 Page 6 Informaciones elementales de seguridad Se parte del uso correcto del producto para los fines definidos si el producto es utilizado conforme a las indicaciones de la correspondiente documentaci n del producto y dentro del margen de rendimiento definido ver hoja de datos documentaci n informaciones de seguridad que siguen El uso del producto hace necesarios conocimientos t cnicos y ciertos conocimientos del idioma ingl s Por eso se
73. e choque tencia conductor de a tierra a masa en el manejo de dispositivos el ctrico superficie protecci n dispositivos Observar la de peso caliente sensibles a la EEN elevado electrost tica del producto ESD IO lo IB Tensi n de Indicaci n de Corriente Corriente alterna Corriente El aparato est protegido alimentaci n de estado de continua DC AC continua en su totalidad por un PUESTA EN espera Corriente alterna aislamiento doble MARCHA Standby DC AC reforzado PARADA 1171 0000 42 05 00 Page 7 Informaciones elementales de seguridad Palabras de se al y su significado En la documentaci n del producto se utilizan las siguientes palabras de se al con el fin de advertir contra riesgos y peligros PELIGRO identifica un peligro inminente con riesgo elevado que 4 PELIGRO provocar muerte o lesiones graves si no se evita ADVERTENCIA identifica un posible peligro con riesgo medio de provocar muerte o lesiones graves si no se evita lesiones leves o moderadas si no se evita AVISO indica la posibilidad de utilizar mal el producto y como consecuencia da arlo En la documentaci n del producto se emplea de forma sin nima el t rmino CUIDADO ATENCI N ATENCI N identifica un peligro riesgo reducido de provocar Las palabras de se al corresponden a la definici n habitual para aplicaciones civiles en el rea econ mica e
74. e flex strip cable W310 413 from X111 and the flex strip cable of the display 408 from X2113 from the Basis Board 2 A100 150 gt Slice up the cable tie 208 and disconnect the cables W214 Mod Ext RF Board 650 the W215 LF RF Board 660 and W212 630 gt Remove the front unit A300 400 forwards 1411 4060 82 3 36 E 2 R amp S SMC100A Module Replacement Install the Front Unit A300 1411 4802 02 gt Move the Front Unit 400 backwards gt Connect the cables W214 Mod Ext RF Board 650 the W215 LF RF Board 660 W212 630 and fix them with the cable tie 208 gt Plugin the flex switch board cable 403 to X112 the flex strip cable W310 413 to X111 and the flex strip cable of the display 408 to X2113 from the Basis Board 2 A100 150 1411 4060 82 3 37 E 2 Module Replacement R amp S SMC100A gt Connect the four screws 401 two on the top side and two on the bottom side of the front unit 400 8 e oo e amp 9 kHz 3 2 GHz de gt Move the front cover R amp S SMC100A 500 and the protective corner front left and right 520 and 530 back and screw it with the four screws SIGNAL GENERATOR 9 kHz 3 2 GHz screws gt Mounting the tube see page 3 33 NOTICE Store the RF cables at a save place These cables are not components of the front unit Please screw all the RF conductio
75. edures Evaluation gt If the power Pres Pnoise 0 41 dB the inherent noise power of the analyzer can be subtracted W Noise Pg 10 log10 10 40800 pe 50dB gt If the power Pres gt Preise 0 41 dB the analyzer resolution is not sufficient for precise measurement The true result is in such case certainly more than 10 dB below the measured value The result than is at least W _ Noise P 50dB 10dB noise gt The difference between the possibly corrected power Proise IN dBm and the power P in dBm is the broadband noise floor in dBc Recommended test frequencies 1 02 MHz 23 438 MHz 51 MHz 101 MHz 201 MHz 401 MHz 801 MHz 1100 MHz 1601 MHz 2200 MHz and 3200 MHz 1411 4060 82 1 15 E 3 Test Procedures R amp S SMC100A SSB Phase Noise The SSB phase noise of the DUT can be measured direct if a Phase Noise Test Set is available An R amp S FSUP or any other analyzer with phase noise option is suitable if its own phase noise is at least 6 dB less than the guaranteed DUT Phase noise in the data sheet Measurement Set the Level of the DUT to O dBm and measure the phase noise at 20 kHz offset with the analyzer in phase noise mode If no suited analyzer is available the Phase noise can be measured with the aid of a second generator and a mixer Test assembly See section Test Assembly for SSB Phase Noise and Jitter page 1 4 Test method The two generators are set to the test frequency and
76. efinition may also exist in other economic areas or military applications It is therefore essential to make sure that the tags described here are always used only in connection with the related product documentation and the related product The use of tags in connection with unrelated products or documentation can result in misinterpretation and in personal injury or material damage Operating states and operating positions The product may be operated only under the operating conditions and in the positions specified by the manufacturer without the product s ventilation being obstructed If the manufacturer s specifications are not observed this can result in electric shock fire and or serious personal injury or death Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed 1 Unless otherwise specified the following requirements apply to Rohde amp Schwarz products predefined operating position is always with the housing floor facing down IP protection 2X pollution severity 2 overvoltage category 2 use only indoors max operating altitude 2000 m above sea level max transport altitude 4500 m above sea level A tolerance of 10 shall apply to the nominal voltage and 5 to the nominal frequency N Do not place the product on surfaces vehicles cabinets or tables that for reasons of weight or stability are unsuitable for this purpose Always follow the manufac
77. ement frequencies derived from these frequencies We recommend measurements at these frequencies unless particular test frequencies are specified In the following RF max is the maximal settable RF depending on installed options Table 1 1 Range limits main test frequencies for CW Mode Hardware switching points Recommended test frequencies Direct DDS 9kHz lt f lt 23 4375 MHz 23 4375 MHz 9 kHz 200 kHz 1 MHz 5 MHz Synthesis 10 MHz 23 4375 MHz Divider 128 23 4375 MHz lt f lt 25 MHz 25 MHz 23 438 MHz 24 999 MHz Divider 64 25 MHz lt f lt 50 MHz 32 MHz 50 MHz 25 01 MHz 31 99 MHz 49 99 MHz Divider 32 50 MHz lt f lt 100 MHz 71 MHz 100 MHz 50 01 MHz 70 9 MHz 99 9 MHz Divider 16 100 MHz f x 200 MHz 141 MHz 200 MHz 100 1 MHz 140 9 MHz 199 9 MHz Divider 8 200 MHz f x 400 MHz 283 MHz 400MHz 200 1 MHz 282 9 MHz 399 9 MHz Divider 4 400 MHz f x 800 MHz 566 MHz 800 MHz 400 1 MHz 565 9 MHz 799 9 MHz Divider 2 800 MHz f lt 1 6 GHz 1131 MHz 1600 MHz 800 1 MHz 1100 MHz 1130 9 MHz 1599 9 MHz 1 6 GHz lt f 3 2 GHz 2263 MHz 1600 1 MHz 2262 9 MHz 3 2 GHz RF max is the maximum output frequency of the instrument according to its frequency option 1 1 GHz or 3 2 GHz For high resolution measurements in the entire frequency range a logarithmic frequency grid in 1 2 5 sequence is recommended up to 50 MHz above this value linear 50 MHz steps should be used up to the upper limit frequency The reco
78. ennen nnnm E nnns 1 37 PIM RTE BEE 1 38 Frequency 1 39 1411 4060 82 1 1 1 E 3 Contents Performance Test R amp S SMC100A PulseiModulation s s ti er A A NRE ODP 1 40 ON OFF Ratio EE 1 40 Riser Eall iMac iaa 1 41 Video Grosstalk s zone ed oed 1 42 Generatore are 1 43 PUESEVIDEO TEE 1 43 1411 4060 82 1 1 2 E 3 R amp S SMC100A Measuring Equipment and Accessories 1 Checking the Rated Characteristics This performance test describes the steps for testing the R amp S SMC Signal Generator family and the installed options with respect to function and compliance with specifications In the following the term DUT Device under Test is used for any signal generator of this family The tests to be performed depend on the installed options The values are given in the data sheet of the respective instrument Measuring Equipment and Accessories Table 1 1 Measuring equipment and accessories item Type of Instrument Required Characteristics Suitable Instrument R amp S Order No 1 Frequency counter 1 Hz to RFmax resolution 0 1 Hz included in spectrum analyzer item 18 Reference source for SSB Identical generator as DUT or R amp S SMC100A with suited 1411 4002 02 noise measurements generator with at least 10 dB frequency option lower SSB noise as DUT R amp S SMB1
79. enu provides information on the already installed options 1411 4060 82 4 3 E 2 R amp S SMC100A Contents Documents Contents Chapter 5 Documents 5 eom oe eee beetle eb te cedes 5 1 Spare Parts EE 5 1 Available Power Cables co Ie dee ade ada 5 2 E 2 1411 4060 82 1 5 1 R amp S SMC100A Spare Parts 5 Documents This chapter contains the spare parts list and the documents for the complete R amp S SMC unit For gen eral information about spare parts for our products please refer to the sheet Procedure in Case of Ser vice and Ordering of Spare Parts atthe beginning of this manual Spare Parts The stock numbers necessary for ordering replacement parts and modules can be found in the compo nent lists further down CAUTION Danger of shock hazard For module replacement ensure that the instrument is switched off and discon nected from the power supply by removing the plug from the AC and DC power connector Read all safety instructions at the beginning of this manual carefully before mod ule replacement NOTICE Risk of damage to the module When shipping a module be careful to provide for sufficient mechanical and anti static protection 1411 4060 82 5 1 E 2 R amp S SMC100A Available Power Cables Table 5 1 List of power cables available ew Earthed contact connector Preferably used in DS 0006 7013 00 DS 0006 7020 00 DS 0006 7036 00 DS 0041 4752 00 DS 0041 6232 00 DS 0
80. essages Internal keyboard test Note When problems occur first check whether any connections cables plug in connections of boards etc are damaged or wrongly connected Measuring Equipment and Accessories Item Type of equipment Specifications recommended Equipment R amp S recommended order No DC voltmeter L R amp S URE 0350 5315 02 Spectrum analyzer Frequency range 0 to 7 GHz R amp S FSP 1164 4391 07 3 Adapting cable 1 long 1129 8259 00 SMP to SMA connection Oscilloscope 100 MHz Hameg HM504 2 1411 4060 82 3 7 E 2 Troubleshooting R amp S SMC100A Switch On Problems The yellow LED on the front panel next to the ON OFF Button is directly connected to the Standby Voltage of the power supply via a resistor on the Basis Board and is therefore a good indicator of the basic working of the power supply When the instrument is switched on the following modules are involved e Power supply e Basis Board e Switching pad To analyze switch on and switch off problems that occur with the R amp S SMC100A the interplay of the individual modules is summarized in the following Switch on When the ON OFF button on the front panel is pressed the voltage of the ON OFF testpoint at X112 switching pad connector goes low In this case the Basis Board pulls the signal on pin 13 of X101 power supply connector see Fig 3 4 low which in turn switches on the power supply In case of a prior emergency shutdown pres
81. ey are of the same type If the reference generator is of the same type as the DUT PN D 10 log10 10 46 dB dB 0 59 If the phase noise of the reference generator is at least 10 dB better than the phase noise of the DUT PN D log10 10 46 dB PN 0 56 dB Recommended test 1 GHz RFmax frequencies 1411 4060 82 1 16 E 3 R amp S SMC100A Residual FM Test assembly Test method Measurement 1411 4060 82 Test Procedures Connect spectrum analyzer to RF socket of the DUT The FM demodulator of the analyzer is used to FM demodulate the CW signal of the DUT By setting the AF low pass and high pass filters the RMS value in the desired bandwidth can be measured The value displayed is the sum of the analyzer residual FM and the DUT residual FM Because they are uncorrelated the displayed result is worse than residual RMS of the DUT alone Therefore if the sum is in tolerance according to the data sheet the DUT is also in tolerance gt Settings on DUT frequency 1 GHz Level 0 dBm Settings on analyzer CENTER 1 GHz REFERENCE LEVEL 1 dBm FM DEMOD FM DEMOD gt MEAS TIME 100ms FM DEMOD gt DEMOD BW 200 kHz FM DEMOD gt AF FILTER HIGH PASS AF FILTER 300 Hz FM DEMOD gt AF FILTER gt LOW PASS AF FILTER 3 kHz The Residual FM in the frequency range 300 Hz 3 kHz is the RMS value displayed Repeat the measurement with setting the HIGH PASS AF F
82. f the fundamental P at the test frequency f as a reference Then measure the signal levels and P3 at twice and three times the carrier frequency f c The harmonic spacing is the measured harmonic level referred to the fundamental HD2 P HD3 Pax in dBc referred to the carrier Test frequencies 1 MHz 32 1 MHz 71 1 MHz 141 1 MHz 283 1 MHz 567 MHz 1132 MHz 2264 MHz Test level 8 dBm Test Procedures Nonharmonics Test equipment Test setup Measurement R amp S SMC100A Same as for harmonics Same as for harmonics gt Setting on analyzer Reference level 0 dBm 10 dB div Span 50 Hz Resolution bandwidth 10 Hz gt Setting on DUT Level 0 dBm gt First the carrier level P is measured at the test frequency f as reference and then the signal level Daach is measured at the analyzer search frequency The nonharmonic spacing D is the measured level referred to the reference level D Pr amp Psearch in dBc referred to the carrier Note Some of the nonharmonics suppression values measured might be outside the analyzer specifications In case of doubt repeat the measurement with a 3 dB attenuator at the analyzer input If the nonharmonic spacing changes the nonharmonic is due to the analyzer Alternative Check with a second source with differing synthesizer architecture not a R amp S SMC Recommended settings and search frequencies DUT Frequency Analyzer search f
83. ference can be impaired under the menu Setup Reference Oscillator Adjustment This setting does not affect the factory adjustment and can be reset at any time by means of deactivation If the tuning range is insufficient to reach the frequency error given in the datasheet the TCXO is defective Replace the RF Board 1411 4060 82 3 27 E 2 Troubleshooting R amp S SMC100A Troubleshooting Reference Oscillator option R amp S SMC B1 If a frequency error is observed which is greater than specified in the data sheet try to adjust the center frequency of the reference oscillator see chapter 2 Adjustment of internal Reference Frequency If it is not possible to meet the specifications by adjusting the center frequency the module is defective and should be replaced Input and Output Signals The Reference Oscillator has only one Futurbus connector X1 The Reference Oscillator is plugged into the RF Board X221 see Fig 3 7 All signals and the supply voltage are fed to the module through this connector Check the voltages for the OCXO being according to the following table To test the serial bus signals watch the signal lines while toggling between internal and external reference with an Oscilloscope Voltage Levels between LOW and HIGH LVC 3 3V PN LE LED OM er ifie 1 Fig 3 7 Pin location X221 on RF Board Pin of X221 Voltage Pin of X221 Voltage Pin of X221 Voltage Pin of X221 Volt
84. generator and Pulse modulator control Modulation matrix and DDS with AM FM PhiM modulator AM modulator Harmonics filters Pulse modulator RF amplifiers Level control Step Attenuator Reverse power protection Diagnostics Internal and external 10 MHz reference The instrument s reference frequency is determined either by the built in TCXO the optionally built in OCXO option R amp S SMC B1 or by an external 10 MHz reference signal that is fed to the input X201 REFIN The output X202 REFOUT provides a buffered 10 MHz signal which has been derived from the active reference source TCXO 20 MHz crystal oscillator In Reference internal mode without OCXO Option R amp S SMC B1 the 20 MHz TCXO is the internal reference signal for the Synthesizer and LF generator In this mode the frequency of the TCXO can be adjusted by DAC When the 10 MHz OCXO Option R amp S SMC B1 is plugged into the RF Board or Reference external mode is chosen the 20 MHz TCXO is synchronized to the 10 MHz reference signal with a PLL In Reference internal mode without the OCXO the 10 MHz output signal for X202 REFOUT is derived from the internal 20 MHz TCXO by the means of a frequency divider In Reference external mode or with OCXO fitted the 10 MHz reference signal is fed straightforward to the 10 MHz REFOUT connector X202 RF Synthesizer DDS The multiplied 20 MHz signal of TCXO provides the system clock for the DDS The RF signals from DC to 23 4375 MHz are
85. gers Also pay attention not to damage or pull off cables Screw the rear feet back on immediately after mounting the cabinet Do not move the unit with the rear feet missing 1171 0300 12 E Esp 2 Informaciones de seguridad para aparatos con tubo de quita y pon 1171 0300 12 Peligro de heridas Al sacar los pi s de la pared posterior puede deslizarse el aparato fue ra de la caja Posicionar el aparato de manera segura sobre las asas delanteras antes de sacar los pi s de la pared posterior y entonces sacar la caja De esta manera evitar n el riesgo de da os en personas y da os en el aparato ER Existe el riesgo de heridas en el momento de poner otra vez la caja como por ejemplo posiblemente engancharse los dedos Por favor ten gan ademas en cuenta de que no se enganchen o desconecten cables Por favor atornillen los pi s de la pared posterior directamente despues de poner la caja No muevan el aparato nunca sin que los pi s de la pared posterior est n atornillados E Esp 2 Procedure in Case of Service and Ordering of Spare Parts This section contains information on shipping an instrument to your service center and ordering spare parts Please contact your local Rohde amp Schwarz service center if you need service or repair work of your equipment or to order spare parts The list of the Rohde amp Schwarz representatives is provided at the beginning of this service manual You can find the current
86. ges of the RF Board at the test points shown in Fig 3 5 The measured voltages have to meet the values given in the table below If one or more voltages are not of the required level check the Basis Board see page 3 21 PCB label Test Point R amp S SMC switched On Shielding enclosure GND Q22 12V 12 14 V Q23 7V 6 5 7 5 924 12V 14V 12V Q25 28V 26V 30V Q26 3V3 3 1V 3 5V Fig 3 5 Power Supply Test Points ofthe RF Board 1411 4060 82 3 23 E 2 Troubleshooting R amp S SMC100A Control Signals The control signals of the RF Board can be measured at test points on the bottom side of the RF Board nearby the ribbon cable connection W222 to the Basis Board see Fig 3 6 Signals going to the RF Board are colored red and signals coming from the RF Board are colored blue a21 er 7114 017 015 08 016 05 013 P 090 996 u Ee as vo TT gu E El x 2 B d u 024 012 023 Fig 3 6 Signal Test Points of the RF Board Perform the following settings at the R amp S SMC100A e Preset e RE on e SETUP Protection deactivate protection level 1 see 3 14 Test Point gt DIAG_SMC_RF_LCON Use the test points in the table below and control the signals with an Oscilloscope Oscilloscope settings e Voltage 1V Div e Timespan 1 us Div e Trigger Normal 1411 4060 82 3 24 E 2 R amp S
87. gt AM RESULT DISPLAY gt AF SPECTRUM DEMOD BW 200 kHz RANGE gt DEVIATION PER DIV 20 MEAS TIME 2 16 fmod s Vary the carrier frequency from 1 MHz to RF max Recommended test frequencies 1 MHz 99 9 MHz 399 9 MHz 799 9 MHz 1100 MHz 1599 9 MHz 1600 1 MHz 3200 MHz Settings on the signal generator LF Output ON LFGen Voltage 1 V Vpeak gt Set the generator frequency to the frequencies given below and measure the modulation depth in RMS Gen frequency 10 Hz 100 Hz 1kHz 10 kHz 50 kHz MEAS TIME 1 65 0 2 5 0 2 5 0 2 5 0 2 5 c The modulation frequency response in dB is the difference between the greatest and the smallest modulation depth Mmax and Mmax min 20 109 10 M max 20 109 40 M min gt Repeat the measurement at RF 1 GHz with the setting Amplitude Modulation gt External Coupling AC gt Repeat the measurement at RF 1 GHz with the internal modulation generator with the setting Amplitude Modulation gt Source Internal 1 30 E 3 R amp S SMC100A Test Procedures Synchronous PhiM with AM Test assembly See section Standard Test Assembly for Analog Modulations page 1 3 Measurement gt Settings on DUT RF On Level PEP Pmnax 0 dBm Amplitude Modulation menu LF Gen Frequency 1 kHz Source Internal AM depth 30 gt Settings on spectrum analyzer AMPTD REF LEVEL dBm FM DEMOD DEMOD BW 12 5 kHz MEAS TIME 100 ms RESULT DISPL
88. he Basis Board 2 ATO0 nennen 3 48 Removing the Basis Board 2 3 48 Installing the Basis Board 2 3 50 Replacing the SIM Card ATI 3 51 Replacing the RF Board A200 sse enne nennen nennen 3 52 Removing the RF BOard u oed e ni rey rende 3 52 Installing the RF Board 3 53 Replacing the Fan Unit itt Lt EHRE en 3 55 Removing the Fan nit E 42 np Hei A dE Se 3 55 Install the Fan Unit E1 El 3 55 Replacing the R amp S SMC B1 ET 3 56 Installthe NR 3 56 Remove the Reference Oscillator R amp S SMC B1 3 57 1411 4060 82 1 3 2 E 2 R amp S SMC100A Purpose 3 Repair Purpose NOTICE Validity e This version of the document describes the instrument R amp S SMC100A starting with Serial Number 102000 e It differs from former versions in a new front unit caused by new TFT display For service purposes the front unit can be replaced by the new version in all instruments with a Basis Board with the Change Index 04 00 or higher Instrument Design and Function Description A schematic of the signal generator s design is presented below as block diagram at module level SMCI00A E e gj WOUT BNC RF UN N Front Panel SMC Rear Panel 100 240V AC 50 60Hz 1 2 04A F1 F2 IEC 127 T3 1SH 250V 1411 4060 82 3 1 SS Instrument Design and Function Description R amp S SMC100A T
89. he R amp S SMC100A consists of very few main modules and very few connections between these modules The main units are Power Supply Basis Board which includes all digital external Interfaces the main CPU the Fan control logic the hardware drivers for the front panel and the Interface for the RF Board Front Unit consisting of the rotary knob with encoder the flexible switch board and the QVGA Color Display RF Board including the whole measurement hardware R amp S SMC B1 Reference Oscillator which is plugged direct into the RF Board A detailed description of these modules is given in the next chapter 1411 4060 82 3 2 E 2 R amp S SMC100A Instrument Design and Function Description RF Board The BOARD contains the complete measuring hardware of the instrument The RF and LF signals are generated and modulated on the module The output level is controlled by a level control loop controlling the level before the step attenuator The fully electronic step attenuator is temperature compensated to achieve very precise output levelling of the instrument The RF Board is equipped with a reverse power protection to ensure the instrument not being damaged due to supplying reverse power to the RF output of the instrument The module is controlled by the Basis Board via a serial bus and few additional control signals Implemented functions Reference crystal oscillator and reference frequency switch Synthesizer LF generator Pulse
90. ing so can cause fire or electric shocks 9 For measurements in circuits with voltages gt 30 V suitable measures e g appropriate measuring equipment fusing current limiting electrical separation insulation should be taken to avoid any hazards 10 Ensure that the connections with information technology equipment e g PCs or other industrial computers comply with the IEC60950 1 EN60950 1 or IEC61010 1 EN 61010 1 standards that apply in each case 11 Unless expressly permitted never remove the cover or any part of the housing while the product is in operation Doing so will expose circuits and components and can lead to injuries fire or damage to the product 12 If a product is to be permanently installed the connection between the PE terminal on site and the product s PE conductor must be made first before any other connection is made The product may be installed and connected only by a licensed electrician 13 For permanently installed equipment without built in fuses circuit breakers or similar protective devices the supply circuit must be fused in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 1171 0000 42 05 00 Page 3 14 15 16 17 Basic Safety Instructions Use suitable overvoltage protection to ensure that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person ope
91. inverted trigger signal LVC 3 3V If one of these Signals is not as described change the connector cable and test again If the signals still not match their description change the defective board according to the table Internal Input and Output Signals Connector Signal name Setting on signal Frequency Level Signal flow System generator X212 SMA RF ON 9 kHz to 3 2 GHz 120 d m to to connector at front 19 dBm X214 SMP MOD EXT AM FM PM Source 0 0 to 100 kHz 1 Vto 1V from BNC MOD EXT at front Ext 215 SMP LFGEN LF output on 0 1 Hz to 100 kHz 0Vto 2 55 V to BNC LF at front 1411 4060 82 3 25 E 2 Troubleshooting R amp S SMC100A Error Messages Concerning the RF Board Module Error message ALC unlocked Synthesis main loop PLL unlocked Synthesis adjustment failed Synthesis adjustment data invalid Error correction gt V V V NN v Automatic Level Control ALC exceeds upper bound Set attenuator mode Auto Execute Internal Adjustment Adjust Synthesis If the error message does not disappear change the module Execute Internal Adjustment Adjust Synthesis If error messages does not disappear check the diagnosis see Troubleshooting with Internal Test Points If the diagnosis measurements work change the RF Board Execute Internal Adjustment Adjust Synthesis If error messages does not disappear check the diagnosis see Troubleshooting with In
92. justment correction Recommended Test Procedure refer to chapter 1 Performance Test Checking the rated characteristics RF Board Setup Internal Adjustments Adjust All Level Data at 0 dBm External Level Correction power meter and special measuring software required OCXO Setup Internal Adjustments Adjust All Reference Frequency Output of Internal Reference Power Supply Setup Internal Adjustments Adjust All 1411 4060 82 2 1 E 2 Procedures after Module Replacement R amp S SMC100A Procedures after Replacing the Basis Board Required equipment USB Memory Stick at least 128 MB Required software Actual SMC_Firmware see R amp S homepage www rohde schwarz com Copy the firmware to the root folder of the memory stick Install the new Firmware See Chapter 4 Software Update Adjustments Preliminary Remark Setting a defined initial state by pressing the PRESET key prior to adjustments is recommended To ensure that the internal adjustments are valid at operating temperature at least 20 minutes warm up time at this temperature must be observed Internal Adjustments All internal adjustments are available in the Setup Internal Adjustments menu see operating manual Adjustments of the Complete Unit Performing Setup Internal Adjustments Adjust All activates all internal adjustments in a reasonable order The external adjustments have to be performed if the recommended calibration interval is e
93. l always refer to the front view of the instrument 1411 4060 82 3 30 E 2 R amp S SMC100A Module Replacement After replacing an assembly After you have replaced one of the assemblies certain adjustments functional checks or performance tests have to be carried out Please refer to chapter 2 Procedures after module replacement SMCI00A T z gj WOUT BNC RF NN N Front Panel SMC Rear Panel 100 240V AC 50 60Hz 1 2 04A FI F2 IEC 127 T3 15H250V 1411 4060 82 3 31 E 2 Module Replacement R amp S SMC100A Safety Instruction CAUTION CAUTION 1411 4060 82 Danger of injury For module replacement ensure that the instrument is switched off and disconnected from the power supply by removing the plug from the AC and DC power connector Read all safety instructions at the beginning of this manual carefully before module replacement Only Rohde amp Schwarz Service personnel and trained personnel may perform a module replacement When removing the rear feet the unit can slip out of the cabinet Put the unit into the front handles before removing the rear feet and taking off the cabinet Thus the risk of personal injuries and damages to the unit is avoided e When mounting the cabinet take care not to pen in the fingers Also pay attention not to damage or off cables Screw the rear feet back on immediately after mounting the cabinet Do not move the unit with the rear feet missi
94. le replacement it is recommended to perform the internal self test refer to chapter 3 Troubleshooting with Internal Self Test The self test checks the instrument by measuring internal diagnostic points and verifies whether generator is operating properly If a self test failure occurs check again whether all cables are properly connected If the self test fails continuously contact your local service center 1411 4060 82 24 E 2 R amp S SMC100A Contents Repair Contents Chapter 3 Repair J Repi ae alerts 3 1 P rpose uote erie nn aiat fied MA Bere 3 1 Instrument Design and Function Description nn 3 1 ee ee TEES 3 3 Internal and external 10 MHz reference 3 3 TCXO 20 MHz crystal osclator nenn 3 3 RE Synthesizer DD Sis ote ee SEP EENS 3 3 Harmonies EE 3 4 LF generator iade nece A 3 4 Pulse generator and Pulse Modulator eme 3 4 Modulation matrix and AM FM pM modulator sn ennennnnennnenenennn 3 4 AM Rue EEN 3 4 Automatic Level Control 3 4 Step Attenuator and reverse power protection nenn 3 5 Supply voltage control and Diertng nenn 3 5 Power Supply Module 3 5 EA EE 3 5 EE ee dee ee 3 5 Switching Ne Ee 3 6 Controller M 3 6 EPGA SMB COM ii cadet ee ae NEE 3 6 Keyboard Controller 2 nn aa nennen nnd naeh 3 6 Diagnostic LEE 3 6 EEPROM ee 3 6 SIM Card M 3 6 Temperature Sensor crine re cuna einen 3 6 Fan Controller
95. m AF Start 0 Hz AF Stop 5 kHz RES BW 30 Hz DEMOD BW 100 kHz IF BW MANUAL 10 MHz RANGE REFERENCE VALUE 0 2 MEAS TIME 3 ms Read the AM depth at 1 kHz modulation frequency from the demodulated AF spectrum CF sweep Recommended test frequencies 23 4 MHz 400 MHz 800 MHz 1100 MHz 3200 MHz 1 35 E 3 Test Procedures R amp S SMC100A Carrier Frequency Offset with FM Test assembly See section Standard Test Assembly for Analog Modulations page 1 3 Measurement gt Settings on DUT RF On Level 0 dBm Frequency 1 GHz Frequency Modulation menu State on FM Source Internal FM deviation 1 MHz LFGen Frequency 10 kHz gt Settings on spectrum analyzer AMPT REF LEVEL 0 dBm FREQ CENTER 1 GHz SPAN 10 kHz MKR SIGNAL COUNT NEXT CNT RESOL 10 Hz gt Terminate the DUT External Modulation input with 50 Q and execute the internal FM offset adjustment gt Execute a single sweep Using PEAK read counted marker frequency gt The offset is the difference between marker frequency and set carrier frequency gt Repeat measurement with FM source external coupling ac and dc 2 measurements 1411 4060 82 1 36 E 3 R amp S SMC100A Phase Modulation Test Procedures PhiM Setting Uncertainty Test Method Measurement Recommended settings 1411 4060 82 gt gt FFT Demodulation see chapter Test Methods Settings on DUT RF On Level 0 dBm Phase Modulation menu
96. measure voltages at internal test points which are located on all important modules of the instrument Diagnostic test points are located on following modules Basis Board RFBOARD The internal selftest checks all voltages at the points listed below so if the selftest passes without a fail skip this manual test Normal action Error possible causes and corrective action Internal diagnosis switched on with SETUP Test Points Select the desired test point under Select Test Point To operate set State ON The measured voltage is displayed under Voltage For troubleshooting refer to the following chapters Compare the displayed values with the values specified in the next table 99 9999V means that the test point does not exist Major deviations from the named values indicate a defect Change the affected module If all test points are out of tolerance maybe only one of the modules is defective and disturbs the diagnostic system To determine which module is defective remove all modules that include test points one after another except the Basis Board If values are still out of tolerance replace the Basis Board The diagnostic system operates with multiplexers on each If the remaining test points are in tolerance after removing a board to switch the desired test point to the common line module the module removed is defective Replace this board named DIAG on the Basis Board Each test point is s
97. mmended test levels are at the upper and lower switching threshold of the attenuator The electronic attenuator of the DUT is switched depending on frequency modulation parameters and level according to an internal stored table in approximately 4 dB steps The switching thresholds can be detected under Attenuator fixed range in the Level menu After setting all other parameters the threshold level can be detected by level variation The level at which the attenuator fixed range changes is the threshold By measuring at the last level setting of one range and the first level setting of the next range the internal setting range borders are used In the following Pmin is the lowest level before switching the attenuator and Pmax the highest 1411 4060 82 1 6 E 3 R amp S SMC100A Test Procedures Test Procedures Reference Frequency Output of Internal Reference Important Allow the DUT to warm up for at least 2 hours before the measurement Test equipment RF power meter Table 1 1 item 8 Frequency counter Table 1 1 item 1 Test setup gt Connect an RF power meter to the REF OUT output on rear panel Measurement gt Measure the output level It should be within 3 dB of the data sheet specifications Test setup gt Connect a calibrated frequency counter to the REF OUT output rear panel Measurement gt Measure the frequency gt frequency deviation must not exceed the sum of deviations resulting from the frequen
98. n on your signal generator e g also on changes of the firmware update procedure Firmware updates always are delivered in one single file with a filename starting with SMC_ and ending in rsu The version numbers in the filename vary with each update Firmware update SMC x xx xx rsu The installation of a new firmware version is performed via the USB interface A deinstallation of the old firmware is not necessary The update file has to be downloaded from the Internet to a PC From there the file should be transferred to the root directory of a memory stick which will later be plugged into the USB interface of the instrument The firmware update is performed while the instrument is running The new firmware will be loaded right after the update process If the instrument sees a memory stick at its USB interface it offers all versions stored in the root directory for selection Thus an upgrade or downgrade of the firmware is possible at any time Installing the firmware NOTICE Risk of impairment of instrument function To avoid impairment of instrument functions the update of the firmware must not be cancelled and the instrument must not be switched off during the update It is strongly recommended to do no downgrade below the firmware version the instrument has been delivederd with 1411 4060 82 4 1 E 2 Installing the Options R amp S SMC100A 1 Switch on the instrument and wait until it is operational 2 Plug i
99. n the memory stick which contains the update file previously downloaded from the Internet to the USB interface of the instrument 3 Want until the software update dialog appears and confirm the update Select the firmware version to be installed with the cursor up down keys and press the rotary knob to activate your selection The selected version will be installed gt Wait until the software update completed message appears Remove USB stick and press the rotary knob to shut down instrument Power on instrument by pressing the power button When the new updated firmware is up and running execute internal adjustments after a warmup time of approx 10 minutes gt Press the 5 key on the instrument front panel select Internal Adjustments and execute Adjust All This process updates internal instrument adjustments and can take several minutes Adjustments requiring external measurement equipment are not affected by the firmware update and need not to be performed Installing the Options A list of all available R amp S SMC options is provided in the data sheet and on the internet http www rohde schwarz com product smc100a Hardware Options Installation and replacement of hardware options is described in chapter 3 of this service manual Please also note the mounting instructions enclosed with the options These mounting instructions can be filed at this place in the service manual
100. ng Risk of damage to the electronic components To avoid damage of electronic components the operational site must be protected against electrostatic discharge The following two methods of ESD protection may be used together or separately Wrist strap with cord to ground connection Conductive floor mat and heel strap combination A Wrist strap with cord Fa Fd e a 1 Building ground y Nd Ground connection u of operational site Heel strap 8 4 e Floor mat R amp S SMC100A Module Replacement Dismounting the tube gt Putthe instrument on the protective front corners gt Unscrew the four screws of the 2 protective rear corners rear right 550 and rear left 540 on both sides and take them off gt Pull off the tube R amp S SMC100A 510 When mounting the tube take care not to damage or pull off cables E 540 550 510 Front corner Front comer Mounting the tube gt instrument on the protective front corners gt Pull on the tube R amp S SMC100A 510 gt the two protective rear corners rear right 550 and rear left 540 on the R amp S SMC100A and screw it with the four screws When mounting the case take care not to damage or pull off cables 1411 4060 82 3 33 E 2 Module Replacement R amp S SMC100A Replacing Fuse NOTICE Risk of damage to the instrument Ensure that the power supply
101. ns alle Rechte vor Ausgedruckte Dokumente unterliegen nicht dem nderungsdienst For this document all rights are reserved Printed documents are not subject to revision Pos Nr Menge ME El Kennz_ Benennung Bezeichnung 7 Sachnummer Ersatzteil BA VH ItemNo Quantity Unit bet Des Designation Stock No Subst part VS 6900 ISR M2 5X8 A2 COMBINATION SCREWS SMC100A KR BW2 TUBUS 2E1 2T350 SMC100A BW2 TUBE 2HU1 2D350 SMC100A KR BW2 SCHUTZECK VO LI 2E HART PROTECTIVE CORNER FRONT LEFT KR BW2 SCHUTZECK VO RE 2E HART PROTECTIVE CORNER FRONT RIGHT 2HU KR BW2 SCHUTZECK HI LI 2E HART PROTECTIVE COVER REAR LEFT 2HU KR BW2 SCHUTZECK HI RE 2E HART PROTECTIVE COVER REAR RIGHT 2HU HS FIRMWARE SMC FIRMWARE SMC HS FONT MICROSOFT ARIAL WGL FONT MICROSOFT ARIAL WGL DY IEC BUS CABLE IEC BUS CABLE FM SCHUTZKAPPE F 24POL BU PROTECION CAP OS KLEBESCHILD GPIB LABEL GPIB Benennung Designation SMC100A SIGNAL GENERATOR ROHDE amp SCHWARZ SMC100A SIGNAL GENERATOR Datum Date 2010 03 23 II 1GPK Nem 0041 1653 00 1411 4383 00 1096 6618 00 1096 6624 00 1096 6630 00 1096 6647 00 1411 4502 00 3584 9795 00 1411 4760 00 0836 8850 00 1411 4548 00 Sprach Lang C Blatt Sheet de en 09 00 2 of 2 Dokument Nr Document No 1411 4002 01 ST F r diese Unterlage behalten wir uns alle Rechte vor Ausgedruckte Dokumente unterliegen nicht dem nderungsdienst For this document all rights are reserved
102. ns with the Torque wrench and not with an ordinary open end wrench When you mount the cables ensure their correct position in the front unit 1411 4060 82 3 38 E 2 R amp S SMC100A Module Replacement Replacing the TFT Display A330 Encoder Board A310 Flex Switch Board Pushbutton Board Set the key frame and front corner plate It is recommended to replace the front unit as a whole Principally it is possible to replace the individual components of the front unit see drawing 1411 4802 01 Removing the TFT Display A330 NOTICE The new Display 408 can be used only with the new front unit 1411 4802 02 and on Basis Board 1406 6700 04 with change index starting from 4 00 gt Removing the Front Unit 400 see page 3 35 Unscrew the five screws 407 to dismount the shielding plate 410 and remove the display 408 407 M AAA Zem eegen Y 9 kHz 3 2 GHz 1411 4060 82 3 39 E 2 Module Replacement R amp S SMC100A Removing the flex switch Board the Pushbutton Set and the key frame gt Removing the Front Unit 400 see page 3 35 gt Remove the Knob 416 from the front side of the R amp S SMC100A 5 3 9 kHz 3 2 GHz gt Removing the TFT Display A330 see above gt Unscrew the five screws 406 an remove the key frame 405 the push button board R amp S SMC100A 404 and the flex switch board 403 1411 4
103. nt is either in standby or in operating mode depending on a value stored in an internal EEPROM The power supply works over a wide input voltage range from 100 V to 240 V 10 and AC supply frequencies form 50 Hz to 60 Hz 5 The power factor correction meets EN 61000 3 2 On the secondary side the power supply generates three DC voltages 5 0 V 13 25 V 13 25 V and one standby voltage 5 V all 5 The control signal POWER_ON_N controlled by the front panel controller depending on the operating key STBY on the front of the instrument frame switches the power supply from standby mode to operating mode In standby operation it only supplies a 5 V standby to supply the front panel controller and the STBY LED on the front panel The secondary voltages are open circuit proof and short circuit proof with respect to ground and each other The power inlet module contains two fuses Replace these fuses only with type and rating specified on the rear panel If the replaced fuse blows again change the module Further fuses are fitted on the Basis Board as a means of fire protection Basis Board The Basis Board of the signal generator involves the following components and modules Fuses Each supply voltage is fused with one or several fuses on the Basis Board 1411 4060 82 3 5 E 2 Instrument Design and Function Description R amp S SMC100A Switching regulators Switching regulators for 1 2 V 1 8 V 3 3 V 7 V and 28 V
104. onnect the PULSE VIDEO socket on the rear of the DUT to the storage oscilloscope Setting on DUT Pulse Modulation menu State On Source Pulse Generator Pulse Generator menu State On Pulse Period 10 us Pulse Width 5 us Setting on oscilloscope 1 V div Time base 2 5 us div Trigger 50 of amplitude rising edge Check the signal for a symmetric square wave with 10 us pulse period and 1 5 V amplitude Rise and fall time lt 10 ns 1 43 E 3 R amp S SMC100A Contents Procedures after Module Replacement Contents Chapter 2 Procedures after Module Replacement 2 Procedures after Module 2 1 Procedures after Replacing the Basis Board nn 2 2 Adus EE 2 2 Internal AUS Met ana LER 22 Adjustments of the Complete Un 2 2 External Adjustments Requiring Measurement Equipment 2 2 External Level Correction eene nennen rrr tenth nennen 2 3 Recalibration D ES 2 3 Adjustment of internal Reference Freoguency eee 24 Recalibration m PEE 2 4 Internal Self Test ET 2 4 1411 4060 82 1 2 1 E 2 R amp S SMC100A Procedures after Module Replacement 2 Procedures after Module Replacement This chapter describes all necessary measures to restore the performance of the R amp S SMC after module replacement There are no manual adjustments to be performed Internal and external adjustment routines are implemented for this p
105. operating the products Before you move or transport the product read and observe the section titled Transport As with all industrially manufactured goods the use of substances that induce an allergic reaction allergens such as nickel cannot be generally excluded If you develop an allergic reaction such as a skin rash frequent sneezing red eyes or respiratory difficulties when using a Rohde amp Schwarz product consult a physician immediately to determine the cause and to prevent health problems or stress Before you start processing the product mechanically and or thermally or before you take it apart be sure to read and pay special attention to the section titled Waste disposal item 1 Depending on the function certain products such as RF radio equipment can produce an elevated level of electromagnetic radiation Considering that unborn babies require increased protection pregnant women must be protected by appropriate measures Persons with pacemakers may also be exposed to risks from electromagnetic radiation The employer operator must evaluate workplaces where there is a special risk of exposure to radiation and if necessary take measures to avert the potential danger Should a fire occur the product may release hazardous substances gases fluids etc that can cause health problems Therefore suitable measures must be taken e g protective masks and protective clothing must be worn If a laser product e g a CD
106. or is implemented fully digital in the RF Board FPGA The pulse signals are fed exclusive on the RF Board to the pulse modulator switch All external pulse BNC connectors are fitted on the RF Board as well Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 Faulty Remote interface IEEE488 USB or LAN All remote interfaces including the interface connectors are fitted directly on the Basis Board Most probably the Basis Board is defective Check the Basis Board being supplied correct see page 3 21 1411 4060 82 3 20 R amp S SMC100A Troubleshooting Troubleshooting Basis Board Module Supply Voltages Before Troubleshooting on the Basis Board switch the R amp S SMC100A on and measure the supply voltages on its power supply connector X101 see Fig 3 4 and compare them to the values specified in the table below Pin 13 is the Power On Signal for the power supply As long as the voltage at this pin is 5 V the power supply is switched off The power supply is turned on by assigning 0 V to this pin If one or more voltages are not of the required level the power supply is defective Pin at X101 Test Point Fuse R amp S SMC in stand by mode R amp S SMC switched On 5 10 5V 1 F4 DV 4 7 V 5 3V 5 10 5V 2 F7 DV 4 7 V 5 3V 3 4 13V2 1 F3 DV 12 4 14 2 V 3 4 13V2 2 F5 D
107. or strips are implemented they must be checked on a regular basis to ensure that they are safe to use 4 If the product does not have a power switch for disconnection from the AC supply network the plug of the connecting cable is regarded as the disconnecting device In such cases always ensure that the power plug is easily reachable and accessible at all times corresponding to the length of connecting cable approx 2 m Functional or electronic switches are not suitable for providing disconnection from the AC supply network If products without power switches are integrated into racks or systems a disconnecting device must be provided at the system level 5 Never use the product if the power cable is damaged Check the power cable on a regular basis to ensure that it is in proper operating condition By taking appropriate safety measures and carefully laying the power cable you can ensure that the cable will not be damaged and that no one can be hurt by for example tripping over the cable or suffering an electric shock 6 The product may be operated only from TN TT supply networks fused with max 16 A higher fuse only after consulting with the Rohde amp Schwarz group of companies 7 Do not insert the plug into sockets that are dusty or dirty Insert the plug firmly and all the way into the socket Otherwise sparks that result in fire and or injuries may occur 8 Do not overload any sockets extension cords or connector strips do
108. ould always be done first Execute SETUP Selftest The selftest reports the modules failing the test PASSED e FAILED Basis Board PASSED To see the details of the selftest select the board failing the selftest FAILED FAILED PASSED PASSED PASSED DETI FAILED E If the Basis Board fails this test check the fuses and supply voltages from the power supply see page 3 21 When the Basis Board fails this test the other modules cannot work correct So only if the Basis Board passes the selftest check the other modules failing the selftest 1411 4060 82 3 13 E 2 Troubleshooting R amp S SMC100A Troubleshooting with Internal Test Points The Protection menu provides access to the unlocking of protected service functions authorized personnel of R amp S Service Departments only To deactivate the protection the correct password has to be entered After the instrument has been switched on the protection levels 1 to 5 are automatically activated Protection Level 1 can be deactivated to expand the functionality of the internal adjustment to change the host name and to access the test points The password is 123456 BI FESTEN DS Prot Level 1 On Pw veer Prot Level 2 on PWD Prot Level 3 PWD Herne Prot Level 4 On PWD Prot Level 5 diagnostic A D converter on the Basis Board allows you to
109. plifier is used to obtain information about the actual output power This information signal is fed back to the Automatic Level Control ALC unit The ALC sets the Level Control Voltage controlling the AM modulator to reach the desired output level 1411 4060 82 3 4 E 2 R amp S SMC100A Instrument Design and Function Description Step Attenuator and reverse power protection Due to the limited dynamic range of the ALC RF detector the regulated RF signal is attenuated with passive attenuators The step attenuator is a settable attenuator with known attenuation Atthe RF output of the RF Board a reverse power protection circuitry detects RF power fed into the RF Board from outside the instrument To protect the R amp S SMC100A against damage a relay disconnects the RF output when excessive reverse power is detected In standby or power off mode this relay is also in off state to protect the RF output of the instrument against damage Supply voltage control and filtering The module supply voltages are filtered by means of passive filtering and additional active voltage regulators Linear regulators with very good noise and distortion suppression characteristics have been implemented based on operational amplifier circuitry Power Supply Module The power supply module provides all currents necessary for the operation of the signal generator It can be switched on and off by means of the power switch on the rear panel After switch on the instrume
110. ponse measurement 1411 4060 82 Connect power meter to RF output socket gt Setting on DUT Levels 13 dBm in level Mode AUTO gt Measure the level Papsolute at the recommended test frequencies up to RF max gt The level error is the deviation of the measured level from the set value gt Repeat this measurement at 13 dBm in level Mode OFF Sample amp Hold at 200 kHz 25 MHz 100 MHz 1 1 GHz 2 2 GHz and 3 2 GHz 200 kHz 500 kHz 1 MHz 5 MHz 10 MHz 23 4375 MHz 25 MHz to 95 MHz in 10 MHz Steps 112 5 MHz to 3 2 GHz in 25 MHz Steps 1 21 E 3 Test Procedures Test method for low levels Test principle Test setup Measurement Recommended test frequencies 1411 4060 82 R amp S SMC100A Low levels can only be measured using a frequency selective measurement instrument Spectrum analyzers with digital IF are best suited for this measurement due to their low linearity error The absolute accuracy of these analyzers is not sufficient for this measurement So a relative measurement referred to the measurements performed with the power meter is used to increase the accuracy of the measurement Only by switching the input attenuator and preamplifier when available of the analyzer the needed dynamic range of more than 120 dB can be reached After switching the analyzer attenuator or preamplifier a continuity calibration is to be carried out It is therefore recommended to switch the attenuator not until
111. producto las celdas o baterias solo deben ser sustituidas por el tipo Rohde amp Schwarz correspondiente ver lista de recambios Las bater as y celdas deben reciclarse y no deben tirarse a la basura dom stica Las bater as o acumuladores que contienen plomo mercurio o cadmio deben tratarse como residuos especiales Respete en esta relaci n las normas nacionales de eliminaci n y reciclaje Transporte 1 El producto puede tener un peso elevado Por eso es necesario desplazarlo o transportarlo con precauci n y si es necesario usando un sistema de elevaci n adecuado p ej una carretilla elevadora a fin de evitar lesiones en la espalda u otros da os personales Las asas instaladas en los productos sirven solamente de ayuda para el transporte del producto por personas Por eso no est permitido utilizar las asas para la sujeci n en o sobre medios de transporte como p ej gr as carretillas elevadoras de horquilla carros etc Es responsabilidad suya fijar los productos de manera segura a los medios de transporte o elevaci n Para evitar da os personales o da os en el producto siga las instrucciones de seguridad del fabricante del medio de transporte o elevaci n utilizado Si se utiliza el producto dentro de un veh culo recae de manera exclusiva en el conductor la responsabilidad de conducir el veh culo de manera segura y adecuada El fabricante no asumir ninguna responsabilidad por accidentes o colisiones No utilice n
112. r The internal LF generator of the signal generator delivers the modulation signal to the external modulation input of the DUT The level of the modulation signal is controlled by use of an AC voltmeter Item 14 of Table 1 1 LFGen Voltage 1 V peak State ON gt Settings on R amp S FSQ FFT Demodulation gt Vary the signal generator frequency and measure the modulation deviation gt The modulation frequency response is the factor between the greatest and the smallest modulation deviation Recommended settings gt LF in logarithmic steps 3 steps per decade 1 2 5 from 10 Hz to 100 kHz gt Perform the measurement for test frequency 23 MHz gt Repeat the measurement with changing the settings to PhiM Ext Coupling AC for test frequency 23 MHz gt Repeat the measurement with changing the settings to PhiM Ext Coupling AC for test frequencies 200 1 MHz 266 MHz 333 MHz 400 MHz LF sweep from 1 kHz to 100 kHz gt Repeat the measurement with changing the settings to PhiM Source Internal PhiM deviation 5 rad at test frequency 400 MHz LF sweep from 1 kHz to 100 kHz 1411 4060 82 1 39 E 3 Test Procedures Pulse Modulation ON OFF Ratio Test equipment Test setup Measurement R amp S SMC100A Spectrum analyzer Table 1 1 item 18 Pulse generator Table 1 1 item 13 To determine the ON OFF ratio connect the spectrum analyzer to the RF output socket of the DUT and let the PULSE EXT input open
113. r R amp S SMC B1 is defective Check the Reference Oscillator being supplied correct see page 3 28 1411 4060 82 3 17 R amp S SMC100A Troubleshooting Fault Test Action if test fails Poor Harmonic R amp S SMC100A settings Most probably the RF Board is defective Distortion Check the RF Board being supplied correct Instrument Preset see page 3 23 Reference internal Auto Level Maximum guaranteed level for harmonic distortion see datasheet Measure the level of the fundamental frequency with a spectrum analyzer The level of every harmonic has to be at least 30 dB lower than the level at the fundamental frequency Repeat this test over the frequency range of the instrument Comment In ATT Mode fixed harmonic distortion is not guaranteed above Levels displayed under Level menu Attenuator Settings Fixed Range in Overvoltage Switch on RF gt apply a RF power of gt 1 W to If RF output is not switched of the RF Board protection does not trigger connector gt The overvoltage protection must trigger is defective Slow Settling times Settling times are defined for GPIB remote control only The settling time is the time delay after asserting EOI until level and frequency are within the given tolerance from their final values Be careful not to measure with an instrument drifting on its own due to applying the RF from the R amp S SMC100A Most pro
114. r in a small bandwidth is measured The difference of the carrier power and the noise power in 1 Hz bandwidth which is calculated from the measurement is defined as wideband noise Because wideband noise degrades with lower electronic levels in front of the output step attenuator the output level of the generator has to be set to the lowest level before switching the step attenuator gt Settings on DUT frequency test frequency Level 0 dBm determine Att fixed range upper Level Pupper gt RF gt Level Att fixed range gt upper set level to Pupper 0 1 dB Settings on analyzer center test frequency reference level Pupper 1 dB Attenuator Dmin Pupper 50 gt round to next larger available Attenuation of the analyzer P4agy analyzer P1dB level at test frequency span 110 kHz Detector RMS Sweep Time Manual 1s switch on channel power measurement with 100 kHz bandwidth Determine the channel power with the center frequency of the analyzer set to the test frequency and note it down as Per Increase the analyzer center frequency by 9 9 MHz Inhibit the switching of the attenuator with AMPT RF ATTEN MANUAL without entering a value so that the input mixer is not overdriven Lower the reference level of the analyzer by 20 dB read the new channel power Pyroise Minimize the output level on the DUT by means of RF OFF read the channel power Pres R amp S SMC100A Test Proc
115. r is digitally implemented in an FPGA The pulse generator has three different modes The pulse generator can run free can be triggered or gated externally using the PULSE EXT input The input impedance at the PULSE EXT BNC connector is fixed to high impedance The pulse signal serves as a source for internal pulse modulation and can additionally be applied at the output PULSE VIDEO in a buffered way Below 23 4375 MHz the pulse modulator is implemented digitally switching on and of the output signal of the DAC Above 23 4375 MHz three CMOS FET switches are used as pulse modulator Modulation matrix and modulator The external modulation signal from MODEXT can be AC or DC coupled This signal is converted into the digital domain by the means of a 10 Bit ADC The Frequency and Phase Modulations are implemented fully digital For output frequencies below 23 4375 MHz the AM is implemented fully digital as well For RF frequencies above 23 4375 MHz the modulation signal is applied as reference signal to the level control loop The AM modulation depth is set by a multiplying DAC A switch matrix to select internal or external modulation signals is implemented in analog circuitry and additionally in the digital domain AM modulators Below 23 4375 MHz in the DDS RF frequency range the AM is generated digitally For RF frequencies above 23 4375 MHz a PIN modulator is used Automatic Level control A RF detector at the output of the power am
116. r two minutes and the display is not working the display is defective If the RF Board is equipped with the Reference Oscillator R amp S SMC B1 remove this unit first see page 3 57 Now repeat the fuse test by first adding the connection to the RF Board and then adding the Reference Oscillator R amp S SMC B1 The module causing the blown fuse is defective Fuse Type R amp S Part Number Manufacturer Part Number F3 T5A 1090 4442 00 Littlefuse R452 005 NRL MRL 4 FF10A 6104 9199 00 Littlefuse R452 010 NRL MRL F5 T5A 1090 4442 00 Littlefuse R452 005 NRL MRL F6 T5A 1090 4442 00 Littlefuse R452 005 NRL MRL F7 FF10A 6104 9199 00 Littlefuse R452 010 NRL MRL 1411 4060 82 3 22 E 2 R amp S SMC100A Troubleshooting Troubleshooting RF Board module The tests listed below ensure that an assumed error on the RF Board module is not caused by a defective or incorrectly connected cable incorrect adjustment or another module A comprehensive test of the module is to run the internal selftest and the internal adjustments See chapters Troubleshooting with Internal Self Test see page 3 13 and Troubleshooting with Internal Adjustments see page 3 16 Supply Voltages The supply voltages of the RF Board are inspected via the test points located on the bottom side of the RF Board nearby the ribbon cable connection W222 to the Basis Board Switch on the R amp S SMC100A and measure the supply volta
117. rating the product will be exposed to the danger of an electric shock Any object that is not designed to be placed in the openings of the housing must not be used for this purpose Doing so can cause short circuits inside the product and or electric shocks fire or injuries Unless specified otherwise products are not liquid proof see also section Operating states and operating positions item 1 Therefore the equipment must be protected against penetration by liquids If the necessary precautions are not taken the user may suffer electric shock or the product itself may be damaged which can also lead to personal injury Never use the product under conditions in which condensation has formed or can form in or on the product e g if the product has been moved from a cold to a warm environment Penetration by water increases the risk of electric shock Prior to cleaning the product disconnect it completely from the power supply e g AC supply network or battery Use a soft non linting cloth to clean the product Never use chemical cleaning agents such as alcohol acetone or diluents for cellulose lacquers Operation 1 Operating the products requires special training and intense concentration Make sure that persons who use the products are physically mentally and emotionally fit enough to do so otherwise injuries or material damage may occur It is the responsibility of the employer operator to select suitable personnel for
118. reaching 50 dB under full scale since the linearity errors are very small in this range gt Connect the spectrum analyzer to the RF output of the DUT with hermetically sealed RF measurement cables gt Settings on DUT Frequency recommended test frequencies Level 13 dBm unmodulated gt Setting on the analyzer Test frequency SPAN 10 Hz FILTER TYPE FFT RES BW 5 Hz set Marker to test frequency Reference level Pres 15 dBm gt Read the marker level Puarker and calculate the correction factor Pabsolute Parker with Pabsolute from the measurements performed with the power meter gt Now decrease the DUT level in 5 dB steps and calculate the output power P by adding the Correction factor C to the marker readout gt As soon as the marker level Pam is lower than P er 45 dB increase the sensitivity of the analyzer by reducing the input attenuation switching on the internal preamplifier if available and reducing the resolution bandwidth to 1 Hz for levels below 90 dBm Set the analyzer reference level to Pat 1 dB After switching the analyzer sensitivity read out the marker level Pai and recalculate the Correction factor Crew Cola Pat Parto gt Continue the measurement down to 120 dBm in 5 dB steps 1 MHz 512 5 MHz 1087 5 MHz 2187 5 MHz 3187 5 MHz 1 22 E 3 R amp S SMC100A Test Procedures Output Impedance Test assembly Test method Measurement Recommended test frequencies and level
119. redited Excluded are parts which cannot be repaired e g printed boards that are burnt broken or damaged by attempts to repair them incomplete modules and parts with severe mechanical damage Please return the defective replacement modules together with the accompanying document for returned merchandise which you received with the spare module We need the following information Stock number serial number and designation of the removed part Detailed error description Stock number serial number and type of instrument from which the module was removed Date of removal Name of the engineer technician who replaced the module R amp S ordering number Service reference number if available 1171 0200 61 01 R amp S SMC100A Contents Performance Test Contents Chapter 1 Performance Test 1 Checking the Rated Characteristics 100 1 1 Measuring Equipment and Accessories 1 1 Test Assemblies A E E Rn AEA E 1 3 Standard Test Assembly for Analog Modulations nn 1 3 Test Assembly for Pulse Modulation nennen 1 3 Test Assembly for Residual AM 1 4 Test Assembly for SSB Phase Noise and Jitter em 1 4 Test Assembly for Output Impedance VW 1 5 Test Assembly for Setting Time AEA 1 5 Preparation Recommended Test Frequencies and 1 6 Test Procedures idilio We E Ede n adea nd R
120. requency 13 MHz 13 MHz 22 MHz 17 MHz 15 MHz 1411 4060 82 R amp S SMC100A Test Procedures Non systematic nonharmonics Measurement gt Settings on DUT Test frequency 1 GHz Test level 0 dBm unmodulated Recommended settings on analyzer Max peak detector Filter Type FFT Ref Level 0 dBm gt Set analyzer center frequency to 1 GHz span to 40 MHz and resolution bandwidth to 2 kHz Measure carrier level P all signals other than the carrier must be below P 60 dB Set analyzer span to 100 kHz and resolution bandwidth to 200 Hz all signals other than the carrier must be below P 60 dB Note Some of the nonharmonics suppression values to be measured might be outside analyzer specifications In case of doubt repeat the measurement with a 3 dB attenuator pad at the analyzer input If the nonharmonics suppression changes the nonharmonics are due to the analyzer Because of the bell shaped noise of the analyzer near the carrier smaller resolution bandwidths may have to be used To exclude amplitude independent nonharmonics of the analyzer use a second generator with different synthesis architecture 1411 4060 82 1 13 E 3 Test Procedures Wideband Noise Test assembly Test method Measurement 1411 4060 82 R amp S SMC100A Connect spectrum analyzer to RF socket of the DUT The carrier power is measured first Then the center frequency of the analyzer is increased by 10 MHz and the noise powe
121. rsonal injury or property damage You are responsible if the product is used for any intention other than its designated purpose or in disregard of the manufacturer s instructions The manufacturer shall assume no responsibility for such use of the product The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits see data sheet documentation the following safety instructions Using the product requires technical skills and a basic knowledge of English It is therefore essential that only skilled and specialized staff or thoroughly trained personnel with the required skills be allowed to use the product If personal safety gear is required for using Rohde amp Schwarz products this will be indicated at the appropriate place in the product documentation Keep the basic safety instructions and the product documentation in a safe place and pass them on to the subsequent users Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations Therefore carefully read through and adhere to the following safety instructions before and when using the product It is also absolutely essential to observe the additional safety instructions on personal safety for example that appear in relevant parts of the product documentation In these safety instructions the word product refers to all merchandise sold and distributed b
122. s 1411 4060 82 Test Assembly for Output Impedance VSWR page 1 5 For the VSWR measurement of a source the effect of the level control must be taken into account For this purpose an auxiliary generator is used which transmits a wave with a slightly offset carrier frequency into the DUT The difference frequency hast to be within the control bandwidth of the level control In the case of ideal source impedance the wave from the auxiliary generator is not reflected by the DUT In the case of not ideal DUT source impedance the output wave of the DUT and the reflected wave of the auxiliary generator are superimposed on one another A directional coupler couples a part of these outgoing superimposed waves to an analyzer The frequency offset results in a beat of the superimposed outgoing waves The VSWR is the ratio between the maximum and minimum amplitude of the beat gt Settings on DUT Level test level Frequency test frequency unmodulated gt Settings on spectrum analyzer Test frequency span 0 Hz test level Resolution and video bandwidth 10 kHz Linear level scale Sweep time 20 ms gt Settings on second signal generator set the frequency to the test frequency 100 Hz set minimum level unmodulated gt Vary the reference level to bring the line displayed on the screen of the spectrum analyzer approximately into the middle of the screen Measure the voltage of the signal gt Unscrew the
123. sing the ON OFF Button for more than 5 seconds it may take a few seconds until this mechanism works again Within four seconds after switch on the CPU takes over the control of pin 13 of the power supply connector If the green LED on the front panel lights up for only a short time approx five seconds and then the orange standby LED lights up again this means that the CPU is not booting properly The cause may be a defective or overheated power supply or Basis Board Switch off Besides pressing the power switch the instrument can be switched off in three ways After briefly pressing the ON OFF button on the front panel the CPU performs a normal system shutdown and then powers off the power supply via pin 13 of the power supply connector Pressing and holding the button on the front panel for longer than five seconds leads to an emergency shutdown which is controlled by special hardware on the Basis Board In this case no user data can be saved The instrument can also be switched off by means of the temperature monitoring circuit on the Basis Board If the temperature sensor on the Basis Board detects an over temperature e g in the event that a fan fails the power supply is switched off via pin 13 of the power supply connector It can only be Switched on again after cooling down 1411 4060 82 3 8 E 2 R amp S SMC100A Troubleshooting e Error Instrument cannot be switched on Action Possible error causes and further steps
124. strument and push it backwards 150 X101 Power supply cable me 206 204 Plug the power supply cable in X101 from the Basis Board 2 A100 150 Connect the power supply holder1 2 204 with the two screws 206 on both sides of the instrument Connect the three combinations screws 160 on the back side of the instrument VV ON Y Mounting the tube see page 3 33 1411 4060 82 3 47 E 2 Module Replacement R amp S SMC100A Replacing the Basis Board 2 A100 see chapter 5 drawing 1411 4002 01 Removing the Basis Board 2 Switch off the instrument and pull the mains plug Dismounting the tube see page 3 33 Removing the power supply see page 3 46 VV V WV Unscrew the three combinations screws 160 on the back side of the instrument gt Pull off the flex switch board cable 403 from X112 the flex strip cable W310 413 from X111 and the flex strip cable of the display 408 from X2113 y 1411 4060 82 3 48 E 2 R amp S SMC100A Module Replacement gt Unscrew the six screws 160 from the Basis Board 2 A100 150 710 Fan cable gt Pull off the IEC Bus Cable W108 710 from X108 the fan cable from X116 and W222 cable BB RF Board 440 from X103 gt Remove the Basis Board 2 A100 150 1411 4060 82 3 49 E 2 Module Replacement R amp S SMC100A Installing the Basis Board 2 gt Move the Basis Board 2 A100 150 gt Connect the IEC Bus Cable W108 710 on X108
125. ted against electrostatic discharge ESD J Wrist strap with cord Floor mat Heel stra P Ground connection of operational site The following two methods of ESD protection may be used together or separately e Wrist strap with cord to ground connection e Conductive floor mat and heel strap combination 1171 0300 62 E Esp 3 Instructions Instrucciones Instrucciones para la protecci n contra descargas electroest ticas Riesgo de averia de los componentes electr nicos Para evitar averias en los componentes electr nicos el rea de trabajo tiene que estar protegido contra descargas electroest ticas ESD elec trostatic discharge J Mufequera con cord n Conexi n a tierra del edificio amp AC N L Estera Talonera Conexi n del area de trabajo Los siguientes dos m todos de protecci n ESD pueden ser usados tos separados e Mu equera con cord n para conexi n a tierra e Combinaci n de estera antiest tica y talonera 1171 0300 62 E Esp 3 Safety Instructions for Units with Removable Cabinet Danger of injuries When removing the rear feet the unit can slip out of the cabinet Put the unit onto the front handles before removing the rear feet and taking off the cabinet Thus the risk of personal injuries and damages to the unit is avoided AR When mounting the cabinet take care not to pen in the fin
126. ter across the frequency range The difference between set and measured level has to be lower than guaranteed in the datasheet Check the mating torque of the SMA connector at cable W 212 being 80 N cm to 110 N cm Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 RF Output Frequency is wrong R amp S SMC100A settings Instrument Preset Setup Adjustment e Adjust al Setup Reference external RF on Level 0 dBm Supply an external 10 MHz reference signal meeting the level and frequency specification given in the datasheet Measure output frequency with a spectrum analyzer or a frequency counter synchronized to the same reference The frequency error has to be lt 0 1 Hz Most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 R amp S SMC100A setting Setup Reference internal Measure the 10 MHz reference output signal with spectrum analyzer or frequency counter and power meter Output frequency and level have to meet the specifications given in the data sheet Without Reference Oscillator R amp S SMC B1 being equipped most probably the RF Board is defective Check the RF Board being supplied correct see page 3 23 If the R amp S SMC100A is equipped with Reference Oscillator R amp S SMC B1 remove the unit see page 3 57 and perform this test again If it works most probably the Reference Oscillato
127. ternal Test Points If the diagnosis measurements work change the RF Board Warnings Concerning the RF Board Module Warnings External reference oscillator out of range or disconnected Output protection tripped Pep value greater than defined limit Pep value less than defined lower bound fix range Pep value greater than defined upper bound fix range Settings conflict pep value vs AM depth Settings conflict pep value greater than allowed level vs frequency Settings conflict frequency vs deviation vs modulation mode Settings conflict PulseGen 1411 4060 82 Warning correction v Wi Check the external reference input signal Ifthe input signal is correct and the error message is still displayed change the module Excessive reverse power at the RF port tripped the output protection Remove the overload condition and press the RF ON OFF button to enter normal operation The peak envelope power PEP is higher than the set upper limit Reduce the output level The peak envelope power PEP is lower than the permissible lower limit in the fix range mode of the attenuator Increase the output level set the attenuator mode to Auto or reset the fix range by briefly switching the attenuator mode to Auto and then switching back to Fixed The peak envelope power PEP is higher than the permissible upper limit in the fix range mode of the attenuator
128. toffhaltige Batterie Diese darf nicht mit dem Hausm ll entsorgt werden Nach Ende der Lebensdauer darf die Entsorgung nur ber eine Rohde amp Schwarz Kundendienststelle oder eine geeig nete Sammelstelle erfolgen Safety Regulations for Batteries according to BattV This equipment houses a battery containing harmful sub stances that must not be disposed of as normal household waste After its useful life the battery may only be disposed of ata Rohde amp Schwarz service center or at a suitable depot Normas de Seguridad para Baterias Seg n BattV Este equipo lleva una bater a que contiene sustancias judiciales que no se debe desechar en los contenedores de basura dom sticos Despu s de la vida til la bater a s lo se podr eliminar en un centro de servicio de Rohde amp Schwarz o en un dep sito apropiado Consignes de s curit pour batteries selon BattV Cet appareil est quip d une pile comprenant des sub stances nocives Ne jamais la jeter dans une poubelle pour ordures m nag res Une pile usag e doit uniquement tre limin e par un cen tre de service client de Rohde 8 Schwarz ou peut tre col lect e pour tre trait e sp cialement comme d chets dan gereux D E ESP F 2 Instructions Instrucciones Instructions for Electrostatic Discharge Protection Risk of damaging electronic components To avoid damage of electronic components the operational site must be protec
129. ts to check the frequency overlap ofthe VCOs gt Run Setup gt Internal Adjustments gt Adjust Synthesis There must be no error message Setting Time only for Option R amp S SMC K4 Test assembly Test method Preparation of measurement 1411 4060 82 See section Test Assembly for Setting Time page 1 5 For measuring after IEC IEEE bus delimiter the EOl line of the IEC IEEE bus is used as trigger signal instead of the pulse generator The spectrum analyzer operates as an FM demodulator A controller transmits the start and the stop frequency via the IEC IEEE bus The analyzer is triggered by the positive edge on the EOI line of the IEC IEEE bus or the trigger pulse in list mode At switch over from start to stop frequency the settling procedure is displayed on the screen of the analyzer gt Synchronize the reference frequencies of the DUT and the analyzer gt Make IEC IEEE bus and RF connections gt Connect spectrum analyzers trigger connector to EOI line pin 5 of IEC IEEE bus gt Settings on DUT Frequency start frequency unmodulated Level 0 dBm gt Settings on spectrum analyzer AMPT REF LEVEL 0 dBm FREQ CENTER STOP FREQUENCY FM DEMOD ON DEMOD BW 50 kHz RANGE DEVIATION PER DIV 200 Hz MEAS TIME 10 ms TRIGGER EXTERN External triggering by positive edge at 1 4 V 1 9 E 3 Test Procedures R amp S SMC100A Measurement gt Settings on analyzer Set the analyzer to the stop
130. turer s installation instructions when installing the product and fastening it to objects or structures e g walls and shelves An installation that is not carried out as described in the product documentation could result in personal injury or death w Do not place the product on heat generating devices such as radiators or fan heaters The ambient temperature must not exceed the maximum temperature specified in the product documentation or in the data sheet Product overheating can cause electric shock fire and or serious personal injury or death 1171 0000 42 05 00 Page 2 Basic Safety Instructions Electrical safety If the information on electrical safety is not observed either at all to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal voltage setting on the product matches the nominal voltage of the AC supply network If a different voltage is to be set the power fuse of the product may have to be changed accordingly 2 In the case of products of safety class with movable power cord and connector operation is permitted only on sockets with an earthing contact and protective earth connection 3 Intentionally breaking the protective earth connection either in the feed line or in the product itself is not permitted Doing so can result in the danger of an electric shock from the product If extension cords or connect
131. unca el producto dentro de un veh culo en movimiento si esto pudiera distraer al conductor Asegure el producto dentro del veh culo debidamente para evitar en caso de un accidente lesiones u otra clase de da os Eliminaci n 1 Si se trabaja de manera mec nica y o t rmica cualquier producto o componente m s all del funcionamiento previsto pueden liberarse sustancias peligrosas polvos con contenido de metales pesados como p ej plomo berilio o n quel Por eso el producto solo debe ser desmontado por personal especializado con formaci n adecuada Un desmontaje inadecuado puede ocasionar da os para la salud Se deben tener en cuenta las directivas nacionales referentes a la eliminaci n de residuos En caso de que durante el trato del producto se formen sustancias peligrosas o combustibles que deban tratarse como residuos especiales p ej refrigerantes o aceites de motor con intervalos de cambio definidos deben tenerse en cuenta las indicaciones de seguridad del fabricante de dichas sustancias y las normas regionales de eliminaci n de residuos Tenga en cuenta tambi n en caso necesario las indicaciones de seguridad especiales contenidas en la documentaci n del producto La eliminaci n incorrecta de sustancias peligrosas o combustibles puede causar da os a la salud o da os al medio ambiente 1171 0000 42 05 00 Page 12 1171 0300 41 Kundeninformation zur Batterieverordnung BattV Dieses Ger t enth lt eine schads
132. uropea Pueden existir definiciones diferentes a esta definici n en otras reas econ micas o en aplicaciones militares Por eso se deber tener en cuenta que las palabras de se al aqu descritas sean utilizadas siempre solamente en combinaci n con la correspondiente documentaci n del producto y solamente en combinaci n con el producto correspondiente La utilizaci n de las palabras de se al en combinaci n con productos o documentaciones que no les correspondan puede llevar a interpretaciones equivocadas y tener por consecuencia da os en personas u objetos Estados operativos y posiciones de funcionamiento El producto solamente debe ser utilizado seg n lo indicado por el fabricante respecto a los estados operativos y posiciones de funcionamiento sin que se obstruya la ventilaci n Sino se siguen las indicaciones del fabricante pueden producirse choques el ctricos incendios y o lesiones graves con posible consecuencia de muerte En todos los trabajos deber n ser tenidas en cuenta las normas nacionales y locales de seguridad del trabajo y de prevenci n de accidentes 1 Si no se convino de otra manera es para los productos Rohde amp Schwarz v lido lo que sigue como posici n de funcionamiento se define por principio la posici n con el suelo de la caja para abajo modo de protecci n IP 2X grado de suciedad 2 categor a de sobrecarga el ctrica 2 uso solamente en estancias interiores utilizaci n hasta 2000 m sobre el nivel del m
133. urpose Spare part RF boards are tested at Rohde 8 Schwarz with calibrated working standards according to the performance test All measurement values are within the specified values including the measurement uncertainty as a minimum guard band Power levels are corrected to nearly ideal values When installing a spare part RF board the only difference at the RF side is the connecting cable between the RF board and the front panel When testing the RF boards Rohde amp Schwarz uses the same type of cable as it is installed in the R amp S SMC OCXOs are tested at Rohde amp Schwarz for the frequency adjustment range and the control voltage for an exact 10 MHz output frequency This control voltage is coded in a digital value and stored on the OCXO module In the R amp S SMC the digital value is read from the OCXO module The probability that the R amp S SMC meets it specifications after the replacement of a RF board and or an OCXO is very high To increase this probability even further and to detect a defective connecting cable between the RF board and the front panel Rohde amp Schwarz recommends to adjust and to verify the power level and the reference frequency according to the instructions in the table below If a calibration of the instrument is strictly necessary the performance test should be performed completely After replacing an assembly check the following table to see which service procedure you perform Changed module Required ad
134. us lee 1 7 Reference Freguency 1 7 Output of Internal Heterence sss eren nennen 1 7 Input for External Reference ener enne 1 8 Frequentes ld naci 1 9 Frequency Set sicuti rr Ec IDE OE EIE Deae a Hee ia 1 9 Setting Time only for Option R amp S GMC KA 1 9 Spectral ud ER 1 11 ia uno 1 11 Elle le 1 12 Non systematic nopnbarmonics nenn nn 1 13 ee lie Ne 1 14 SOB Phase N oIlse nd ede e e t d Lidia 1 16 Residual Seege Dee ee MU Misi a 1 17 Isesidial AM TEE 1 19 eet 1 21 Level Uncertainty civic ii en ne D me Dd ua 1 21 Output Impedance EEN 1 23 Setting Time only for Option R amp S SMC K4 1 24 Internal Modulation Generator 1 25 Amplitude Modulation 1 et dae o ede nen pe He se een ea 1 27 AM Setting Uncertainty haben rennen 1 27 AM DIST ION e trf e A iue der tee i bet ttes 1 29 AM Frequency Response 1 30 Synchronous with AM E a e 1 31 Frequency Modulation Sue ein a lcd 1 32 TestMEthodSs ee ie nc m at o ee 1 32 FM Setting Uncert inty ren Dad 1 32 DI reip iD add HR 1 33 FM Frequency Response nennen 1 34 Synchronous AM with ener enne 1 34 Carrier Frequency Offset with EM 1 36 Ph se Mod lation ter dete eee ee Tune neuere 1 37 PhiM Setting LUlncertaintby n
135. ustments Adjust Ext Level ECEXUTE Adjustment Data CUSTOM Note that the R amp S factory level correction data is not replaced by this procedure instead an additional data set is created The active correction data set is selected by the setting Adjustment data 1411 4060 82 2 3 E 2 Procedures after Module Replacement R amp S SMC100A Adjustment of internal Reference Frequency The frequency accuracy of the synthesizer is determined set to internal reference by a 20 MHz VTCXO or when the Option R amp S SMC B1 is fitted with a highly stable OCXO that is set to a calibrated frequency standard at the R amp S factory This oscillator is subject to ageing and can be recalibrated Recalibration Important Allow the DUT to warm up for at least 20 minutes before adjustment is executed Test equipment External frequency counter 1 Hz to RF max resolution 0 1 Hz Test setup gt Connect a calibrated external frequency counter to the reference output at the rear panel Adjustment gt Setting on DUT PRESET Setup Menu Protection Protection Level 2 147946 ENTER Setting on spectrum analyzer external frequency counter MKR SIGNAL COUNT MKR NEXT CNT RESOL 0 1 Hz Adjust the TCXO OCXO Calibration Value Setup Reference Oscillator Calibration Value for an external frequency counter reading of 10 MHz with minimal error Press Write value to Eeprom to store the DAC value Internal Self Test After each modu
136. witched to the line only for the time of a measurement and switched off after it The A D converter is located on the Basis Board Itis advisable to begin by checking the test points on the Basis Board since the diagnostic converter is located on this module 1411 4060 82 3 14 E 2 R amp S SMC100A Troubleshooting Module Test Point Min Max Function Basis Board DIAG_SMB_BAB_ADCGRD 25 mV 25 mV Reference Ground DIAG_SMB_BAB_P7V 6 4 V 7 6V Supply Voltages DIAG_SMB_BAB_P5V 4 6V 5 4 V DIAG_SMB_BAB_P3V3 3 1 V 3 5 V DIAG_SMB_BAB_P12V 12 2 V 14 3 V DIAG_SMB_BAB_POV9 0 88 V 0 92 V DIAG_SMB_BAB_P28V 25 8 V 30 2 V DIAG_SMB_BAB_P2V5 2 3V 27V DIAG_SMB_BAB_P1V2 1 1V 1 3V DIAG_SMB_BAB_M12V 14 3 V 12 2 V DIAG SMB BAB TEMP 0 75 C Temperature DIAG_SMB_BAB_VREF 3 15 V 3 45 V RF Board DIAG_SMC_RF_GND 100 mV 100 mV Reference Ground DIAG_SMC_RF_REF3V3REF 3 15 V 3 45 V Supply Voltage DIAG_SMC_RF_REF100A 1 5V 4 0V DIAG_SMC_RF_REF100B 500 mV 2 0V DIAG_SMC_RF_TEMP_ATT 5 C 75 C Temperature DIAG SMC RF DET I 50 mV 20V DIAG SMC RF VDETTUNE 50 mV 5 1V DIAG_SMC_RF_VCO_PLL 50 mV 2 0V DIAG_SMC_RF_VDET 50 mV 80V DIAG_SMC_RF_LEVELREF 9 0 V 50 mV DIAG_SMC_RF_LCON 1 5V 11 0V DIAG_SMC_RF_MODEXT 1 05 V 1 05 V Extern Modulation Input DIAG_SMC_RF_TCXOCTRL 50 mV 3 45 V DIAG_SMC_RF_PDDIVREF 50 mV 3 45 V DIAG_SMC_RF_TCOMP 50 mV 2 2V DIAG_SMC_RF_2LOOPF 3 0V 28 0
137. xhausted or the RF Board has been replaced External Adjustments Requiring Measurement Equipment The external adjustments require calibrated equipment and special software Data sheet specifications of the unit are concerned If required contact your local Rohde amp Schwarz representative 1411 4060 82 2 2 E 2 R amp S SMC100A Procedures after Module Replacement External Level Correction External level correction measures output power over frequency and level and stores the correction values inside the instrument to maintain level accuracy The R amp S SMC provides a build in measuring procedure for external level correction NOTICE Risk of damage to the power sensor Power sensor NRP Z91 can be damaged when being exposed to R amp S SMCs maximum output power So it is recommended to PRESET the instrument before connecting the power sensor The build in level correction procedure does not overload the sensor Recalibration Test equipment gt R amp S NRP Z91 or R amp S NRP Z92 power sensor with NRP Z3 or NRP Z4 USB adaptor Test setup gt Power on instrument gt Setting on instrument PRESET Setup Menu Reference Oscillator Source INTERNAL Protection Protection Level 2 147946 ENTER gt Connect the power sensor to the RF plug and to the USB connector of the instrument gt Allow the R amp S SMC and the power sensor to warm up for at least 20 minutes Adjustment gt Setting on instrument Setup Menu Internal Adj
138. y the Rohde amp Schwarz group of companies including instruments systems and all accessories Symbols and safety labels AS Notice general Caution Danger of Warning PE terminal Ground Ground Be careful when danger location when electric Hot surface terminal handling handling shock electrostatic Observe product heavy sensitive documentation equipment devices olol E ON OFF supply Standby Direct current Alternating current Direct alternating Device fully protected by voltage indication DC AC current DC AC double reinforced insulation 1171 0000 42 05 00 Page 1 Basic Safety Instructions Tags and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers indicates a hazardous situation which if not avoided will result in death or DANGER serious injury indicates a hazardous situation which if not avoided could result in death or indicates a hazardous situation which if not avoided could result in minor or moderate injury indicates the possibility of incorrect operation which can result in damage to NOTICE the product In the product documentation the word ATTENTION is used synonymously These tags are in accordance with the standard definition for civil applications in the European Economic Area Definitions that deviate from the standard d

R&S SMC100A Service Manual - Rohde & Schwarz Philippines

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R&amp;S SMC100A Service Manual - Rohde &amp; Schwarz Philippines

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R&S SMC100A Service Manual - Rohde & Schwarz Philippines