Agilent Technologies E8257C PSG Spezifikationen Seite 1

Service GuideAgilent TechnologiesPSG Signal GeneratorsThis guide applies to the following signal generator models: E8267C PSG Vector Signal GeneratorE

x ContentsAssemblies and Hardware Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Assemblie

1-90 TroubleshootingOverall DescriptionDigital ModulationThe I/Q modulator circuits in the A8 Lowband, A35 3–20 GHz I/Q Modulator and the A13 I/Q Mul

p-analog_ovr-allBlock Diagram for the Overall PSG Analog Signal Generator, Service Guide E8251-90259A21 Rear Panel InterfaceFM DriverA9 YIG DriverA6 F

p-vector_ovr-all Block Diagram for the Overall PSG Vector Signal Generator, Service Guide E8251-90259FM DriverA9 YIG DriverA6 Frac-N(Fine Tune)A5 Sam

1-95TroubleshootingReference/Synthesis Loop DescriptionReference/Synthesis Loop DescriptionThis description covers generating CW and swept signals at

1-96 TroubleshootingReference/Synthesis Loop DescriptionRamp Sweep (Option 007)The following basic functions are required to generate an accurate swe

1-97TroubleshootingReference/Synthesis Loop DescriptionA5 Sampler (CW mode only)The A5 Sampler contains a microwave sampler used to convert a portion

1-98 TroubleshootingReference/Synthesis Loop DescriptionA9 YIG DriverCW ModeThe A9 YIG Driver provides the YIG oscillator tune voltage. Coarse tuning

1-99TroubleshootingReference/Synthesis Loop DescriptionA28 YIG Oscillator (YO)The YIG oscillator output frequency (3.2 to 10 GHz) is controlled by the

1-100 TroubleshootingReference/Synthesis Loop Description

Sweep Start / Stop (to / from A9)Sweep Start / StopA5 Sampler / YO Loop (Coarse Tune)1 GHz RF1 GHz In250 MHz LO750 MHzJ1 1 GHz InMode BMode A¸P500 -

1-11 Troubleshooting• “Electrostatic Discharge (ESD) Information” on page 1-2• “Getting Started with Troubleshooting” on page 1-3• “A18 CPU Turn–On Te

1-103TroubleshootingRF PathDescription (Frequency Generation, Level Control, and Modulation)RF Path Description (Frequency Generation, Level Control,

1-104 TroubleshootingRF Path Description (Frequency Generation, Level Control, andModulation)the A30 Modulation Filter (in analog models) or to the 3

1-105TroubleshootingRF PathDescription (Frequency Generation, Level Control, and Modulation)A30 Modulation FilterBecause one function of the A30 Modul

1-106 TroubleshootingRF Path Description (Frequency Generation, Level Control, andModulation)<3.2 GHz Fast Pulse Modulator (Option 1E6)Option 1E6

1-107TroubleshootingRF PathDescription (Frequency Generation, Level Control, and Modulation)Level accuracy is a function of the detector and instrumen

1-108 TroubleshootingRF Path Description (Frequency Generation, Level Control, andModulation)PulsePulse modulation signals from the A11 Pulse/Analog

1-109TroubleshootingRF PathDescription (Frequency Generation, Level Control, and Modulation)Generator, and is used to drive the pulse modulators on th

1-110 TroubleshootingRF Path Description (Frequency Generation, Level Control, andModulation)Approximate Device Gains and LossesItem # Device Gain/Lo

p-analog_rf-pathBlock Diagram for the Analog RF Path, Service Guide E8251-90259Audio 1Audio 2External 1External 2F_GEN1F_GEN2FM1_MUXFM2_MUXMOD_MUXAM1_

Ext ALCFrontPanelExponentialModulation DriverL_20MOD_OFFL_20/H_40DIGALCMOD_LIN_DACALCMOD_BIAS_DAC_+H_RF_OFFH_SM_MODE-10v_+L UnlvlInterrupt+66mV/dBDet

1-2 TroubleshootingElectrostatic Discharge (ESD) InformationElectrostatic Discharge (ESD) InformationWARNING The following techniques related to ESD

1-115TroubleshootingSelf-Test OverviewSelf-Test OverviewA group of tests (self-tests) are embedded in the signal generator’s firmware that can evaluat

1-116 TroubleshootingContacting Agilent TechnologiesContacting Agilent TechnologiesIf you have a problem with your signal generator, contact your nea

1-117TroubleshootingContacting Agilent TechnologiesDescribe the problem:

1-118 TroubleshootingContacting Agilent TechnologiesAgilent Sales and Service OfficesSales and service offices are located around the world to provid

1-119TroubleshootingContacting Agilent TechnologiesPackaging a Signal Generator for Return1. Use the original packaging materials or a strong shipping

1-120 TroubleshootingContacting Agilent Technologies

2-12 Assembly Replacement

2-2 Assembly ReplacementBefore You Replace an AssemblyBefore You Replace an AssemblyCAUTION Many of the assemblies in this instrument are very suscep

2-3Assembly ReplacementAssemblies That You Can ReplaceAssemblies That You Can Replace• "Outer Instrument Cover" on page 2-5• "Inner In

2-4 Assembly ReplacementAssemblies That You Can Replace• "A30 Modulation Filter (Standard and Option 1EA)" on page 2-80• "A31 Motherb

1-3TroubleshootingGetting Started with TroubleshootingGetting Started with TroubleshootingReferring to Table1-1:• determine where to begin troubleshoo

2-5Assembly ReplacementOuter Instrument CoverOuter Instrument CoverTools Required • T-15 driver• T-20 driver Removal ProcedureRefer to Figure 2-1 for

2-6 Assembly ReplacementOuter Instrument CoverFigure 2-1 Outer Instrument Cover Removal

2-7Assembly ReplacementInner Instrument CoverInner Instrument CoverTools Required • T-10 driverRemoval Procedure Refer to Figure 2-2 for this procedur

2-8 Assembly ReplacementInner Instrument CoverFigure 2-2 Inner Instrument Cover Removal

2-9Assembly ReplacementFront PanelFront PanelTools Required • T-10 driver • T-15 driver • needle-nose pliersRemoval ProcedureNOTE To remove the Front

2-10 Assembly ReplacementFront Panel• W49 (I IN) from the A35J7 (E8267C only).• W50 (Q IN) from the A35J8 (E8267C non 1EM signal generators only).•

2-11Assembly ReplacementFront PanelFigure 2-3 Front Panel Removal

2-12 Assembly ReplacementA1 KeyboardA1 Keyboard Tools Required • T-10 driver Removal Procedure Refer to Figure 2-4 for this procedure.1. Disconnect t

2-13Assembly ReplacementA1 KeyboardFigure 2-4 A1 Keyboard Removal

2-14 Assembly ReplacementA2 DisplayA2 Display Tools Required • T-10 driver Removal Procedure Refer to Figure 2-5 for this procedure.1. Disconnect the

1-4 TroubleshootingA18 CPU Turn–On TestA18 CPU Turn–On TestAt turn–on, the A18 CPU is designed to complete a series of operational checks. If all pow

2-15Assembly ReplacementA2 DisplayFigure 2-5 A2 Display Removal

2-16 Assembly ReplacementA2DS1 Display BacklightA2DS1 Display BacklightTools Required • T-10 driver • small phillips screw driverRemoval Procedure Re

2-17Assembly ReplacementA2DS1 Display BacklightFigure 2-6 A2DS1 Display Backlight Removal

2-18 Assembly ReplacementA3 Power SwitchA3 Power Switch Tools Required • T-10 driver Removal Procedure Refer to Figure 2-7 for this procedure.1. Disc

2-19Assembly ReplacementA3 Power SwitchFigure 2-7 A3 Power Switch Removal

2-20 Assembly ReplacementA4 InverterA4 Inverter Tools Required •noneRemoval Procedure Refer to Figure 2-8 for this procedure.1. Disconnect the power

2-21Assembly ReplacementA4 InverterFigure 2-8 A4 Inverter Removal

2-22 Assembly ReplacementA5 Sampler, A6 Frac-N, A7 Reference (Standard and Option UNR), and A8 OutputA5 Sampler, A6 Frac-N, A7 Reference (Standard an

2-23Assembly ReplacementA5 Sampler, A6 Frac-N, A7 Reference (Standard and Option UNR), and A8 OutputFigure 2-9 A5 Sampler, A6 Frac-N, A7 Reference, a

2-24 Assembly ReplacementA9 YIG DriverA9 YIG DriverTools Required • needle-nose pliersRemoval Procedure Refer to Figure 2-10 for this procedure.1. Di

1-5TroubleshootingA18 CPU Turn–On TestChecking the A18 CPU Voltages1. With the external and internal covers removed and the signal generator on its si

2-25Assembly ReplacementA9 YIG DriverFigure 2-10 A9 YIG Driver W12/A9J5W10/A9J3W11/A9J4W54/A9J9A9

2-26 Assembly ReplacementA10 ALCA10 ALCTools Required • needle-nose pliersRemoval Procedure Refer to Figure 2-11 for this procedure.1. Disconnect the

2-27Assembly ReplacementA10 ALCFigure 2-11 A10 ALC W13/A10J201W55/A10J303W4/A10J4W14/A10J5Option 540 - W15/A10J3A10Option 520 - W82/A10J3

2-28 Assembly ReplacementA11 Pulse/Analog Modulation GeneratorA11 Pulse/Analog Modulation Generator Tools Required • needle-nose pliersRemoval Proced

2-29Assembly ReplacementA11 Pulse/Analog Modulation GeneratorFigure 2-12 A11 Pulse/Analog Modulation GeneratorW16/A11J204W6/A11J203W7/A11J202W17/A11J

2-30 Assembly ReplacementA12 Pulse Modulator Board (Option 1E6)A12 Pulse Modulator Board (Option 1E6)Tools Required • T-10 driver • 5/16” open ended

2-31Assembly ReplacementA12 Pulse Modulator Board (Option 1E6)Figure 2-13 A12 Pulse Modulator Board (Option 1E6)W76W75A12W69W161

2-32 Assembly ReplacementA13 I/Q MUX (E8267C Models Only)A13 I/Q MUX (E8267C Models Only)Tools Required • T-10 driver • 5/16” open ended wrench• need

2-33Assembly ReplacementA13 I/Q MUX (E8267C Models Only)Figure 2-14 A13 I/Q MUXW62/A13J7W79/A13J4W78W77W80/A13J3W63/A13J6111W70A13

2-34 Assembly ReplacementA14 Baseband Generator (E8267C Models Only)A14 Baseband Generator (E8267C Models Only)Tools Required • T-10 driver• needle-n

1-6 TroubleshootingA18 CPU Turn–On TestNo Instrument Control From the Front PanelRefer to “Front Panel Display Assembly Troubleshooting” on page 1-11

2-35Assembly ReplacementA14 Baseband Generator (E8267C Models Only)Figure 2-15 A14 Baseband GeneratorW65/A14J800W64/A14J13A14W90/A14J21

2-36 Assembly ReplacementA17 Baseband Generator Interface (E8267C Models Only)A17 Baseband Generator Interface (E8267C Models Only)Tools Required • 5

2-37Assembly ReplacementA17 Baseband Generator Interface (E8267C Models Only)Figure 2-16 A17 Rear Panel Interface BoardW68/A17P421W64/A17P2A17W90/A17

2-38 Assembly ReplacementA18 CPUA18 CPUTools Required • T-10 driverRemoval Procedure Refer to Figure 2-17 for this procedure.1. Disconnect the power

2-39Assembly ReplacementA18 CPUFigure 2-17 A18 CPUW18/A18J1W66/A18P2W19/A18J2W64/A14J13A18W90/A14J21

2-40 Assembly ReplacementA18BT1A18BT1WARNING This battery contains lithium. Do not incinerate or puncture this battery. Do not install this battery b

2-41Assembly ReplacementA18BT1Figure 2-18 A18BT1A18BT1W64/A14J13W66/A18P2W19/A18J2W18/A18J1W90/A14J21

2-42 Assembly ReplacementA19 Power SupplyA19 Power SupplyTools Required • T-10 driver • needle-nose pliersRemoval Procedure Refer to Figure 2-19 for

2-43Assembly ReplacementA19 Power SupplyFigure 2-19 A19 Power Supply Removal12A22W1A22W2W18/A18J1W66/A18J2W20W64/A14J13A1943

2-44 Assembly ReplacementRear Panel (Standard)Rear Panel (Standard)Tools Required • T-10 driver • needle-nose pliersRemoval ProcedureRefer to Figure

1-7TroubleshootingSelf–Test Failures and Related TroubleshootingSelf–Test Failures and Related TroubleshootingTable 1-4 Self-test Failures and Related

2-45Assembly ReplacementRear Panel (Standard)9. Disconnect the following ribbon cables: • W64 from A17P2 (E8267C only)• W90 from A17P1 (E8267C only)•

2-46 Assembly ReplacementRear Panel (Standard)Figure 2-20 Rear Panel Removal1A22W1A22W2W18/A18J1W20W64/A14J13322

2-47Assembly ReplacementRear Panel (Option 1EM)Rear Panel (Option 1EM)Tools Required • T-10 driver • needle-nose pliersRemoval ProcedureRefer to Figur

2-48 Assembly ReplacementRear Panel (Option 1EM)• W56 (-Q OUT) from A35 3-20 GHz I/Q Modulator J14 (E8267C only)• W57 (-I OUT) from A35 3-20 GHz I/

2-49Assembly ReplacementRear Panel (Option 1EM)Figure 2-21 Rear Panel Removal (Option 1EM)1A22W1A22W2W18/A18J1W20W64/A14J13322

2-50 Assembly ReplacementA20 SMI (Source Module Interface)A20 SMI (Source Module Interface)Tools Required • 5.0 mm hex-nut driver• needle-nose pliers

2-51Assembly ReplacementA20 SMI (Source Module Interface)Figure 2-22 A20 SMI

2-52 Assembly ReplacementA21 Rear-Panel InterfaceA21 Rear-Panel InterfaceTools Required • T-10 driver • 9/16” hex-nut driver• 5.0 mm hex-nut driver•

2-53Assembly ReplacementA21 Rear-Panel InterfaceFigure 2-23 A21 Rear-Panel Interface

2-54 Assembly ReplacementA22 Line ModuleA22 Line ModuleTools Required • T-10 driver• 5.0 mm wrench• needle-nose pliersRemoval ProcedureRefer to Figur

1-8 TroubleshootingSelf–Test Failures and Related TroubleshootingA9 YIG Driver “Self–Tests 6xx: A9 YIG Driver Self–Test Errors” on page 1-38600 Post

2-55Assembly ReplacementA22 Line ModuleFigure 2-24 A22 Line Module Removal

2-56 Assembly ReplacementAT1 115 dB AttenuatorAT1 115 dB Attenuator Tools Required • T-10 driver • 5/16” open ended wrenchRemoval ProcedureRefer to F

2-57Assembly ReplacementAT1 115 dB AttenuatorFigure 2-25 AT1 115 dB Attenuator (Option 1E1)W24AT1W25AT1W1/A26J131

2-58 Assembly ReplacementAT1 115 dB Attenuator (Option 1EM)AT1 115 dB Attenuator (Option 1EM)Tools Required • T-10 driver • 5/16” open ended wrenchRe

2-59Assembly ReplacementAT1 115 dB Attenuator (Option 1EM)Figure 2-26 AT1 115 dB Attenuator (Option 1E1)AT1W73W72AT1W1

2-60 Assembly ReplacementA23 Lowband Coupler/DetectorA23 Lowband Coupler/Detector Tools Required • T-10 driver • 5/16” open ended wrench•wire cutters

2-61Assembly ReplacementA23 Lowband Coupler/DetectorFigure 2-27 A23 Lowband Coupler/DetectorW27E8247C/57C - W37A23E8267C - W751

2-62 Assembly ReplacementA24 20 GHz Highband Coupler (Option 520 Only)A24 20 GHz Highband Coupler (Option 520 Only)Tools Required • T-10 driver • 5/1

2-63Assembly ReplacementA24 20 GHz Highband Coupler (Option 520 Only)Figure 2-28 A24 20 GHz Highband Coupler (Standard)Figure 2-29 A24 20 GHz Highba

2-64 Assembly ReplacementA24 40 GHz Highband Coupler (Option 540 Only)A24 40 GHz Highband Coupler (Option 540 Only)Tools Required • T-10 driver • 5/1

1-9TroubleshootingSelf–Test Failures and Related TroubleshootingA11 Pulse/Analog Modulation Generator “Self–Tests 13xx: A11 Analog/Pulse Modulation Ge

2-65Assembly ReplacementA24 40 GHz Highband Coupler (Option 540 Only)Figure 2-30 A24 40 GHz Highband Coupler (Standard)Figure 2-31 A24 20 GHz Highban

2-66 Assembly ReplacementA25 20 GHz Highband DetectorA25 20 GHz Highband Detector Tools Required • 5/16” open ended wrench• needle-nose pliersRemoval

2-67Assembly ReplacementA25 20 GHz Highband DetectorFigure 2-32 A25 20 GHz Highband DetectorFigure 2-33 A25 20 GHz Highband Coupler (Option 1EM)A25A

2-68 Assembly ReplacementA25 40 GHz Highband Detector (Option 540 Only)A25 40 GHz Highband Detector (Option 540 Only)Tools Required • T-10 driver • 5

2-69Assembly ReplacementA25 40 GHz Highband Detector (Option 540 Only)Figure 2-34 A25 40 GHz Highband Detector A25A24

2-70 Assembly ReplacementA25B Highband Detector Bias BoardA25B Highband Detector Bias BoardTools Required • T-10 driverRemoval Procedure Refer to Fig

2-71Assembly ReplacementA25B Highband Detector Bias BoardFigure 2-35 A25B Highband Detector Bias BoardA25BW1A25B

2-72 Assembly ReplacementA26 MID (Microcircuit Interface Deck)A26 MID (Microcircuit Interface Deck)Tools Required • T-10 driver Removal ProcedureRefe

2-73Assembly ReplacementA26 MID (Microcircuit Interface Deck)Figure 2-36 A26 MIDW69/A26J14W28/A26J15A25BW1W70/A26J34W20/A26J20W33/A26J32W34/A26J31W35

2-74 Assembly ReplacementA27 40 GHz Doubler (Option 540 Models Only)A27 40 GHz Doubler (Option 540 Models Only)Tools Required • T-10 driver• 5/16” op

ii NoticeThe material contained in this document is provided “as is”, and is subject to being changed, without notice, in future editions.Further, t

1-10 TroubleshootingTroubleshooting Assembly–Level ProblemsTroubleshooting Assembly–Level ProblemsThis section provides the following:• “Front Panel

2-75Assembly ReplacementA27 40 GHz Doubler (Option 540 Models Only)Figure 2-37 A27 40 GHz DoublerW29W32W31A27Option 1EM - W83Standard - W30

2-76 Assembly ReplacementA28 YIG OscillatorA28 YIG OscillatorTools Required • T-10 driver • 5/16” open ended wrenchRemoval ProcedureRefer to Figure 2

2-77Assembly ReplacementA28 YIG OscillatorFigure 2-38 A28 YIG OscillatorA28W38W27W12

2-78 Assembly ReplacementA29 20 GHz DoublerA29 20 GHz DoublerTools Required • T-10 driver• 5/16” open ended wrenchRemoval ProcedureRefer to Figure 2-

2-79Assembly ReplacementA29 20 GHz DoublerFigure 2-39 A29 20 GHz DoublerW38W40W39E8247C/57C - W4111A29E8267C - W77W32

2-80 Assembly ReplacementA30 Modulation Filter (Standard and Option 1EA)A30 Modulation Filter (Standard and Option 1EA)Tools Required • T-10 driver •

2-81Assembly ReplacementA30 Modulation Filter (Standard and Option 1EA)Replacement Procedure • Reverse the order of the removal procedure.• Torque all

2-82 Assembly ReplacementA30 Modulation Filter (Standard and Option 1EA)Figure 2-40 A30 Modulator Filter W27/A30J3E8247C/57C - W41E8267C - W781W13/A

2-83Assembly ReplacementA31 Motherboard (E8247C/57C)A31 Motherboard (E8247C/57C)Tools Required • T-10 driver • 5/16” open ended wrench• needle-nose pl

2-84 Assembly ReplacementA31 Motherboard (E8247C/57C)Replacement Procedure • Reverse the order of the removal procedure.• Send command "DIAG:FIL

1-11TroubleshootingTroubleshooting Assembly–Level ProblemsFront Panel Display Assembly TroubleshootingOverviewThe Front Panel Display Assembly compris

2-85Assembly ReplacementA31 Motherboard (E8247C/57C)Figure 2-41 A31 Motherboard (E8247C/57C)W35W23W371W39W40W11/A31J1021W21/A31J1043W10/A31J1031W22/A

2-86 Assembly ReplacementA31 Motherboard (E8267C)A31 Motherboard (E8267C)Tools Required • T-10 driver • 5/16” open ended wrench• needle-nose pliersRe

2-87Assembly ReplacementA31 Motherboard (E8267C)8. Using the needle-nose pliers, disconnect the W68 wire cable from A31J2509. Disconnect the W23 ribb

2-88 Assembly ReplacementA31 Motherboard (E8267C)Figure 2-42 A31 Motherboard (E8267C)W231W76W39W60/A31J1052W61/A31J1053W40W11/A31J1021W21/A31J1043W1

2-89Assembly ReplacementA31 Motherboard (E8267C)This page intentionally left blank

2-90 Assembly ReplacementA32 10 MHz Crystal Oscillator (Option UNR)A32 10 MHz Crystal Oscillator (Option UNR)Tools Required • T-10 driver • needle-no

2-91Assembly ReplacementA32 10 MHz Crystal Oscillator (Option UNR)Figure 2-43 A32 Crystal Oscillator

2-92 Assembly ReplacementA33 6 dB PADA33 6 dB PADTools Required • 5/16” open ended wrench• needle-nose pliersRemoval Procedure Refer to Figure 2-44 f

2-93Assembly ReplacementA33 6 dB PADFigure 2-44 A33 6 dB PADA24A25A33A25BA24A74

2-94 Assembly ReplacementA34 Internal Hard Drive (E8267C Models Only)A34 Internal Hard Drive (E8267C Models Only)Tools Required • T-10 driver Removal

1-12 TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: Dark display1. Ensure that the front panel green power on LED is on. If not, refe

2-95Assembly ReplacementA34 Internal Hard Drive (E8267C Models Only)Figure 2-45 A34 Internal Hard Drive (Option 005)W66/A18P21A34

2-96 Assembly ReplacementA35 3-20 GHz I/Q Modulator (E8267C Models Only)A35 3-20 GHz I/Q Modulator (E8267C Models Only)Tools Required • needle-nose p

2-97Assembly ReplacementA35 3-20 GHz I/Q Modulator (E8267C Models Only)Figure 2-46 A35 3-20 GHz I/Q ModulatorW58/A35J12W59/A35J11W63/A36J5W62/A35J6W6

2-98 Assembly ReplacementB1 FanB1 FanTools Required • T-10 driver • 5/16” open ended wrenchRemoval ProcedureRefer to Figure 2-47 for this procedure.1

2-99Assembly ReplacementB1 FanFigure 2-47 B1 Fan21

2-100 Assembly ReplacementB1 Fan

3-13 Replaceable Parts

3-2 Replaceable PartsOrdering InformationOrdering InformationTo order a part, do the following:1. Determine the part number.2. Determine the quantity

3-3Replaceable PartsSave Money with Rebuilt-Exchange AssembliesSave Money with Rebuilt-Exchange AssembliesUnder the rebuilt-exchange assembly program,

3-4 Replaceable PartsShipping a Defective Assembly Back to Agilent TechnologiesShipping a Defective Assembly Back to Agilent Technologies1. When you

1-13TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: Bright display without characters1. Ensure that the front panel green power on LED

3-5Replaceable PartsFrequency, Hardware, and Personality OptionsFrequency, Hardware, and Personality OptionsThis section lists the options available w

3-6 Replaceable PartsAssemblies and Hardware OptionsAssemblies and Hardware OptionsAssemblyE8247CE8257CE8267CPart NumberPage NumberPart NumberPage Nu

3-7Replaceable PartsAssemblies and Hardware OptionsA21 Rear Panel Interface E8251-60203 3-16 and 3-12E8251-60203 3-17 and 3-13A22 Line Module 5064-5

3-8 Replaceable PartsAssemblies and Hardware OptionsAT1 115 dB Mechanical Attenuator (Option 1E1) E8251-60070 3-10, 3-16 and 3-14E8251-60070 3-11, 3-

3-9Replaceable PartsAssemblies and Hardware OptionsAssemblies from the Inside Front Panel ViewFigure 3-2 Assemblies from the Inside Front Panel View (

3-10 Replaceable PartsAssemblies and Hardware OptionsAssemblies from a Top ViewFigure 3-3 Assemblies from a Top View (E8247C and E8257C)A8A7A9A10A11A

3-11Replaceable PartsAssemblies and Hardware OptionsFigure 3-4 Assemblies from a Top View (E8267C)A32(Option UNR)A20B1A17A34A19A35A14A18A25BA25A24A33A

3-12 Replaceable PartsAssemblies and Hardware OptionsAssemblies from the Inside Rear Panel ViewFigure 3-5 Assemblies from the Inside Rear Panel View

3-13Replaceable PartsAssemblies and Hardware OptionsFigure 3-6 Assemblies from the Inside Rear Panel View (E8267C)A20A32B1A17A22A21A34

3-14 Replaceable PartsAssemblies and Hardware OptionsAssemblies from a Microcircuit Deck ViewFigure 3-7 Assemblies from a Microcircuit Deck View (E82

1-14 TroubleshootingTroubleshooting Assembly–Level Problems5. If all the signals measured in Step 4 are good, go to Step 6.If any of the signals meas

3-15Replaceable PartsAssemblies and Hardware OptionsFigure 3-8 Assemblies from a Microcircuit Deck View (E8267C)A25A33A25BA24A26A13A30A29A28A23AT1(Opt

3-16 Replaceable PartsAssemblies and Hardware OptionsAssemblies from a Bottom ViewFigure 3-9 Assemblies from a Bottom View (E8247C and E8257C)A31A22A

3-17Replaceable PartsAssemblies and Hardware OptionsFigure 3-10 Assemblies from a Bottom View (E8267C)A31A22A30A29A21B1A13A28A23AT1(Option 1E1)A12

3-18 Replaceable PartsAssemblies and Hardware OptionsA18BT1 Lithium BatteryFigure 3-11 A18BT1 Lithium BatteryA18A18BT1

3-19Replaceable PartsCablesCablesThis section lists part numbers for the cables in your signal generator.Table 3-1Reference DesignatorInput Output Par

3-20 Replaceable PartsCablesW13 A10J201 A30J6 8121-0624W14 A10J5 A23J104 8121-0627W15(Option 540)A10J3 A25 40 GHz Highband Detector 8121-0607W16 A11J

3-21Replaceable PartsCablesW36 Ribbon Cable, AT1 115 dB Mechanical Attenuator A26J13 8121-0982W37(E8247C/57C)Semi-Rigid Cable, A23 Lowband Coupler/Det

3-22 Replaceable PartsCablesW57 (E8267C)A35J13 rear panel (-I OUT) 8121-0901W58 (E8267C)A35J12 rear panel (Q OUT) 8121-0901W59 (E8267C)A35J11 rear pa

3-23Replaceable PartsCablesW75 Semi-Rigid Cable, A23 Lowband Coupler/DetectorA12 Pulse Modulator Board E8251-20033W76 Semi-Rigid Cable, A12 Pulse Mod

3-24 Replaceable PartsHardwareHardware This section lists part numbers for hardware and other instrument parts in your signal generator. • “Front Pan

1-15TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: Hardkeys or softkeys do not workThe A1 Keyboard contains the hardkeys and softkeys

3-25Replaceable PartsHardwareFront Panel ViewTable 3-2 Front Panel ViewItem No. Description Qty Part Number1 Small Overlay (E8247C, E8257C and E8267C

3-26 Replaceable PartsHardwareFigure 3-12 Front Panel View

3-27Replaceable PartsHardwareDisassembled Front Panel ViewTable 3-3 Disassembled Front Panel ViewItem No. Description Qty Part Number1 Front Panel Fra

3-28 Replaceable PartsHardwareFigure 3-13 Disassembled Front Panel View

3-29Replaceable PartsHardwareDisassembled Rear Panel ViewTable 3-4 Disassembled Rear Panel ViewItem No. Description Qty Part Number1 Rear Panel (E8247

3-30 Replaceable PartsHardwareFigure 3-14 E8247C/57C Disassembled Rear Panel View17 Left Rear Strut (E8247C and E8257C) 1 E8251-00030Left Rear Strut

3-31Replaceable PartsHardwareFigure 3-15 E8267C Disassembled Rear Panel View

3-32 Replaceable PartsHardwareDisassembled A32 10 MHz Crystal Oscillator (Option UNR)Table 3-5 Disassembled A32 10 MHz Crystal Oscillator (Option UNR

3-33Replaceable PartsHardwareFigure 3-16 Disassembled A32 10 MHz Crystal Oscillator (Option UNR)

3-34 Replaceable PartsHardwareDisassembled AT1 115 dB Attenuator View (Option 1E1)Figure 3-17 Disassembled AT1 115 dB Attenuator View (Option 1E1)Tab

1-16 TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: RPG not working properly1. Ensure that the front panel green power on LED is on.

3-35Replaceable PartsHardwareDisassembled A24 20 GHz Highband Coupler and A25B Highband Detector Bias BoardFigure 3-18 Disassembled A24 20 GHz Highban

3-36 Replaceable PartsHardwareDisassembled A24 40GHz Highband Coupler and A25B Highband Detector Bias BoardFigure 3-19 Disassembled A24 40GHz Highban

3-37Replaceable PartsHardwareMicrocircuit Interface Deck Top ViewFigure 3-20 E8247C/57C Microcircuit Interface Deck Top ViewTable 3-9 Microcircuit Int

3-38 Replaceable PartsHardwareFigure 3-21 E8267C Microcircuit Interface Deck Top View1

3-39Replaceable PartsHardwareMain Chassis and MID Bottom ViewTable 3-10 Main Chassis and MID Bottom ViewItem No. Description Qty Part Number1 Rib Brac

3-40 Replaceable PartsHardwareFigure 3-22 Main Chassis and MID Bottom View (E8247C/57C)

3-41Replaceable PartsHardwareFigure 3-23 Main Chassis and MID Bottom View (E8267C)713(3 places)(13 places)2465(3 places)(2 places)(4 places)(2 places)

3-42 Replaceable PartsHardware2.4 mm RF Output Connector (Option 540 Only)Figure 3-24 2.4 mm RF Output Connector (Option 540 Only)Table 3-11 2.4 mm R

3-43Replaceable PartsHardwareAPC 3.5 RF Output Connector (Option 520 Only)Figure 3-25 APC 3.5 RF Output Connector (Option 520 Only)Table 3-12 APC 3.5

3-44 Replaceable PartsHardwareType-N RF Output Connector (Option 1ED Models Only)Figure 3-26 Type-N RF Output Connector (Option 1ED Models Only)Table

1-17TroubleshootingTroubleshooting Assembly–Level ProblemsPower Supply TroubleshootingThe power supply is a switching supply, with automatic line-volt

3-45Replaceable PartsHardwareMain Chassis with Inside Cover and Right-Side Support WallFigure 3-27 Main Chassis with Inside Cover and Right-Side Suppo

3-46 Replaceable PartsHardwareOuter and Inner Instrument Covers and Associated PartsTable 3-15 Outer and Inner Instrument Covers and Associated Parts

3-47Replaceable PartsHardwareFigure 3-28 Outer and Inner Instrument Covers and Associated Parts

3-48 Replaceable PartsMiscellaneousMiscellaneousThis section lists part numbers for miscellaneous items that can be used with your signal generator.A

3-49Replaceable PartsMiscellaneousElectrostatic Discharge (ESD) Protective SuppliesTable 3-18 Electrostatic Discharge (ESD) Protective SuppliesDescrip

3-50 Replaceable PartsAbbreviations Used in Part DescriptionsAbbreviations Used in Part DescriptionsThis section defines the reference designators, a

4-14 Post-Repair Procedures• “Adjustments: Assemblies A1—A12” on page 4-2• “Adjustments: Assemblies A13—A26” on page 4-3• “Adjustments: Assemblies A

4-2 Post-Repair ProceduresPost-Repair Procedures MatrixPost-Repair Procedures MatrixTable 4-1 Adjustments: Assemblies A1—A12Adjustments Replaced Ass

4-3Post-Repair ProceduresPost-Repair Procedures MatrixTable 4-2 Adjustments: Assemblies A13—A26Adjustments Replaced AssemblyThe following adjustments

4-4 Post-Repair ProceduresPost-Repair Procedures MatrixTable 4-3 Adjustments: Assemblies A27—A35, AT1, B1, and RF Output ConnectorAdjustments Replace

1-18 TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-6 Power Supply vs. Assembly Matrix (2 of 3)Motherboard test points: +5.2 Digital +

4-5Post-Repair ProceduresPost-Repair Procedures MatrixTable 4-4 Performance Tests: Assemblies A1—A18Performance Tests The following performance tests

4-6 Post-Repair ProceduresPost-Repair Procedures MatrixTable 4-5 Performance Tests: Assemblies A19—A32Performance Tests Replaced AssemblyThe followin

4-7Post-Repair ProceduresPost-Repair Procedures MatrixTable 4-6 Performance Tests: Assemblies A34, A35, AT1, B1, and RF Output ConnectorPerformance Te

4-8 Post-Repair ProceduresPost-Repair Procedures Matrix

5-15 Safety and RegulatoryThis chapter provides information on the following:• “General Safety Considerations” on page 5-2• “Lithium Battery Disposal

5-2 Safety and RegulatoryGeneral Safety ConsiderationsGeneral Safety ConsiderationsThe following safety notes apply specifically to signal generators

5-3Safety and RegulatoryLithium Battery DisposalLithium Battery DisposalWhen the battery on the A14 CPU is exhausted and/or ready for disposal, dispos

5-4 Safety and RegulatoryLithium Battery Disposal

Index I-1Numerics10 MHz crystal oscillator (Option UNR)replacement, 2-90115 dB attenuator (Option 1E1)replacement, 2-56, 2-5820 GHzdoublerreplacement

I-2 Index40 GHz highbandreplacement, 2-68highband bias boardreplacement, 2-70lowbandreplacement, 2-60digital modulation, description, 1-108displayrep

1-19TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-7 Power Supply vs. Assembly Matrix (3 of 3)Motherboard test points: -15 Vdc -5.2 Vdc

Index I-3referencereplacement, 2-22reference/synthesis loopblock diagram, 1-95description, 1-95repairadjustments required, 4-1performance tests requi

I-4 Index

Contents iii1. TroubleshootingElectrostatic Discharge (ESD) Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-20 TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-8 E8267C, Option 520, Power Supply vs. Assembly Matrix (1 of 5)Motherboard Test Po

1-21TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-9 E8267C, Option 520, Power Supply vs. Assembly Matrix (2 of 5)Motherboard Test Poin

1-22 TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-10 E8267C, Option 520, Power Supply vs. Assembly Matrix (3 of 5)Motherboard Test P

1-23TroubleshootingTroubleshooting Assembly–Level ProblemsTable 1-11 E8267C, Option 520, Power Supply vs. Assembly Matrix (4 of 5)Motherboard Test Poi

1-24 TroubleshootingTroubleshooting Assembly–Level ProblemsNOTE For all models except the E8267C, Option 520, use the Power Supply vs. Assembly Matri

1-25TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: Instrument does not power up; power supply LEDs not onChecking Power Supplies Each

1-26 TroubleshootingTroubleshooting Assembly–Level ProblemsFigure 1-2 Motherboard Power Supply LEDs (1 of 2)Power Switch On/Off Line For all models

1-27TroubleshootingTroubleshooting Assembly–Level ProblemsFigure 1-3 Motherboard Power Supply LEDs (2 of 2)To troubleshoot:1. Turn the front panel swi

1-28 TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: Green front panel LED and power supply LEDs on motherboard blinkingOvervoltage or

1-29TroubleshootingTroubleshooting Assembly–Level ProblemsSymptom: –5.2 V2, +1.95 VD, +1.8 VD LEDs not onThese supplies are generated by voltage regul

iv ContentsTroubleshooting Unlevels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-67T

1-30 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf-Tests 1xx for the A13 I/Q Multiplexer100 Power Supply• If all power supply voltages a

1-31TroubleshootingTroubleshooting Assembly–Level Problems102 Ext In Offset DAC and Switch• Replace the A13 I/Q Multiplexer103 Path 1 & 2 and Ext

1-32 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 2xx: A5 Sampler Self–Test ErrorsBefore proceeding to the reported self–test err

1-33TroubleshootingTroubleshooting Assembly–Level Problems201 Tuning + Bias Test1. Turn power off and remove the A5 Sampler and connect a signal analy

1-34 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 3xx: A7 Reference (Standard) Self–Test ErrorsBefore proceeding to the reported

1-35TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 4xx: A8 Output Self–Test ErrorsBefore proceeding to the reported self–test error

1-36 TroubleshootingTroubleshooting Assembly–Level Problems401 Prelevel Loop Test1. With the signal generator powered up, carefully remove the A8 Out

1-37TroubleshootingTroubleshooting Assembly–Level Problems3. If both the I and Q signals are good, reconnect the cable removed in Step 2. Check the si

1-38 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 6xx: A9 YIG Driver Self–Test ErrorsBefore proceeding to the reported self–test

1-39TroubleshootingTroubleshooting Assembly–Level ProblemsA9 YIG Driver Output VoltagesIf any of the following voltages are out of specification, repl

Contents vALC Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-106

1-40 TroubleshootingTroubleshooting Assembly–Level Problems605 Sweep Lock1. Using an oscilloscope with high input impedance, measure the center pin o

1-41TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 7xx: A6 Frac–N Self–Test ErrorsBefore proceeding to the reported self–test error

1-42 TroubleshootingTroubleshooting Assembly–Level Problems702 Tuning Voltage1. Using an oscilloscope, check 10 MHz Synthesis line on P33–15. The sig

1-43TroubleshootingTroubleshooting Assembly–Level Problems704 Filter Test1. Refer to Table1-13, and check J1 on the A6 Frac–N:a. Turn the signal gener

1-44 TroubleshootingTroubleshooting Assembly–Level Problems705 F/2 Test1. Using an oscilloscope, check the 10 MHz Synthesis line on P33–15. The signa

1-45TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 9xx: A10 ALC Self–Test ErrorsBefore proceeding to the reported self–test error co

1-46 TroubleshootingTroubleshooting Assembly–Level Problems901 Detector Test1. Using a digital voltmeter, check J3 for –0.6 Vdc:a. Turn the signal ge

1-47TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 10xx: A7 Reference (Option UNR) Self–Test ErrorsBefore proceeding to the reported

1-48 TroubleshootingTroubleshooting Assembly–Level Problems1001 10 MHz Test1. Using an oscilloscope, check P41–2 for a 10 MHz signal greater than 1.1

1-49TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 11xx: A18 CPU Self–Test Errors1100 Power SupplyThe A18 CPU self–test verifies the

vi ContentsReplacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16A3 Power

1-50 TroubleshootingTroubleshooting Assembly–Level Problems5. If a supply voltage is not present on the connector, measure the appropriate point list

1-51TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 12xx: A26 MID Self–Test ErrorsBefore proceeding to the reported self–test error c

1-52 TroubleshootingTroubleshooting Assembly–Level Problems1200 Power Supply1. Press View Details, highlight Self Test 1200, then press View Details

1-53TroubleshootingTroubleshooting Assembly–Level Problems1203 40 GHz Doubler1. Disconnect the 0 to 20 GHz cable between the A30 Modulation Filter and

1-54 TroubleshootingTroubleshooting Assembly–Level Problems1205 LB Pulse ModLowband Pulse On 1. Disconnect the cable from J5 of A10 ALC, and connect

1-55TroubleshootingTroubleshooting Assembly–Level Problems1206 20 GHz IQ Modulator1. If the power supplies 8V AF, 2.5V AF, 9V AFSW, 12V AFSW, 15V VLIM

1-56 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 13xx: A11 Analog/Pulse Modulation Generator Self–Test ErrorsBefore proceeding t

1-57TroubleshootingTroubleshooting Assembly–Level Problems1301 Internal Pulse Generator Clock1. Using an oscilloscope, measure P131–91 for a 10 MHz si

1-58 TroubleshootingTroubleshooting Assembly–Level Problems1313 Amplitude Modulation• Replace A11 Pulse/Analog Modulation Generator.1314 External 1•

1-59TroubleshootingTroubleshooting Assembly–Level ProblemsSelf-Tests 16xx for the A14 Baseband Generator (Option 002/602)Power Supply Voltage(Vdc)A31

Contents viiReplacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36A18 CPU

1-60 TroubleshootingTroubleshooting Assembly–Level Problems1600 Host <–> BBG Comm• If the +3.4 VD, +2.6 VD, and +1.9 VD supply voltages are goo

1-61TroubleshootingTroubleshooting Assembly–Level Problems1608 VCO Tune Test• If the +32 V, ±15V, –5.2 V2, and + 5.2V supply voltages are good on the

1-62 TroubleshootingTroubleshooting Assembly–Level ProblemsSelf–Tests 22xx: A8 Output Self–Test ErrorsBefore proceeding to the reported self–test err

1-63TroubleshootingTroubleshooting Assembly–Level Problems3. Connect a spectrum analyzer to the A6 Frac–N RF output at J4 of the A8 Output. The signal

1-64 TroubleshootingTroubleshooting UnlocksTroubleshooting UnlocksThe phase lock loop refers to part of the frequency generating circuit used to main

1-65TroubleshootingTroubleshooting Unlocks515 10 MHz Signal BadA 515 10 MHz Signal Bad message indicates a problem on the A7 Reference.A7 Reference (S

1-66 TroubleshootingTroubleshooting Unlocks625 Internal Pulse Generator UnlockA 625 internal pulse generator unlocked message indicates a failure on

1-67TroubleshootingTroubleshooting UnlevelsTroubleshooting UnlevelsA leveled output power is obtained comparing a detected voltage with a reference vo

1-68 TroubleshootingTroubleshooting Unlevelsb. Connect the RF output of the signal generator to the spectrum analyzer. Measure and record the minimum

1-69TroubleshootingTroubleshooting Unlevels4. For each of the failed conditions listed, always start with the signal generator set to the following se

viii ContentsReplacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58A23 Lo

1-70 TroubleshootingTroubleshooting Unlevelsunleveled.• Connect a power meter or spectrum analyzer to the RF output connector.• Using the RPG adjust

1-71TroubleshootingTroubleshooting Adjustment ProblemsTroubleshooting Adjustment ProblemsWhen an adjustment does not work or fails to resolve a proble

1-72 TroubleshootingTroubleshooting Adjustment ProblemsAttenuator Calibration-Highband and Low Power AT1 RF PathALC Modulator Calibration A30 Modulat

1-73TroubleshootingTroubleshooting ADC Adjustment FailuresTroubleshooting ADC Adjustment FailuresThe ADC adjustment adjusts the ADC reference voltage

1-74 TroubleshootingTroubleshooting Performance Test ProblemsTroubleshooting Performance Test ProblemsIf a performance test fails and all self–tests

1-75TroubleshootingTroubleshooting Performance Test ProblemsDigital Modulation Power Relative to CW Perform I/Q and digital calibrations.Performance t

1-76 TroubleshootingTroubleshooting the RF PathTroubleshooting the RF PathTroubleshooting RF Path procedure:• preset the signal generator• set a freq

1-77TroubleshootingTroubleshooting the RF Path• Power Search Manual• Do Power Search4. Using the RF Path Block Diagram, check the power levels at the

1-78 TroubleshootingTroubleshooting the RF Path(W17). Probe the end of the cable. Compare the results with Table1-20.12.If the signal levels are good

1-79TroubleshootingTroubleshooting the RF PathTroubleshooting AT1 AttenuatorStarting from +25 dBm, the attenuator steps when the power is changed from

Contents ixReplacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-78A30 Modu

1-80 TroubleshootingTroubleshooting Harmonic SpuriousTroubleshooting Harmonic SpuriousHarmonics are multiples of the output frequency. The second har

1-81TroubleshootingTroubleshooting Harmonic Spurious11.If the harmonic level is >–55 dBc, replace the A30 Modulation Filter.20 GHz ModelsHarmonic p

1-82 TroubleshootingTroubleshooting Harmonic Spurious•ALC Off• Amplitude Power Search (softkey)2. Remove the cable from the A30 Modulation Filter J2

1-83TroubleshootingTroubleshooting Non–Harmonic SpuriousTroubleshooting Non–Harmonic SpuriousThere are nine different groupings a spur can fall into.

1-84 TroubleshootingTroubleshooting Option UNR Phase NoiseTroubleshooting Option UNR Phase NoisePoor grounds or shielding problems in either the test

1-85TroubleshootingOverall DescriptionOverall DescriptionThe overall description provides a functional overview of the Agilent PSG signal generators.

1-86 TroubleshootingOverall DescriptionA18 CPUThe A18 CPU controls all activities in the signal generator:• translating information entered from the

1-87TroubleshootingOverall Descriptionnot installed.Frequency GenerationThe YIG oscillator generates frequencies from 3.2 to 10 GHz.Highband Path – Fr

1-88 TroubleshootingOverall Descriptionlow frequency signals flow to the front panel through the highband path.Frequency ControlCW Mode The A9 YIG D

1-89TroubleshootingOverall DescriptionOutput Power Level/Automatic Leveling ControlThe output power control circuitry, commonly referred to as the ALC