Agilent Technologies 4294A Manual de Serviço

○C Copyright 2009 Agilent Technologies Agilent 4294A PRECISION IMPEDANCE ANALYZER Service Manual Manual Change Agilent Part No. N/A May 20

2 NoticesThe information contained in this document is subject to change without notice.This document contains proprietary information that is prote

92 3 AdjustmentHPOT-Amplifier Offset Correction ConstantsHPOT-Amplifier Offset Correction ConstantsThe purpose of this procedure is to adjust the HPO

3 93AdjustmentRelative Impedance Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleRelative Impedance

94 3 AdjustmentDC Bias Monitor Correction ConstantsDC Bias Monitor Correction ConstantsThe purpose of this procedure is to adjust the DC Bias Monitor

3 95AdjustmentDC Bias Monitor Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleFigure 3-8Figure 3-8

96 3 AdjustmentDC Bias Level Correction ConstantsDC Bias Level Correction ConstantsThe purpose of this procedure is to adjust the DC bias level.Requi

3 97AdjustmentOSC Level Monitor Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleOSC Level Monitor C

98 3 AdjustmentOSC Level Monitor Correction ConstantsFigure 3-11 OSC Level Monitor Correction Constants Setup 14. Click OK, then wait till the measu

3 99AdjustmentOSC Level Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleOSC Level Correction Consta

100 3 AdjustmentImpedance Measurement Correction ConstantsImpedance Measurement Correction ConstantsThe purpose of this procedure is to adjust the re

3 101AdjustmentImpedance Measurement Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleFigure 3-14 I

3Safety SummaryThe following general safety precautions must be observed during all phases of operation, service, and repair of this instrument. Fail

102 3 AdjustmentImpedance Measurement Correction ConstantsFigure 3-15 Impedance Measurement Correction Constants Setup 26. Follow the adjustment pro

3 103AdjustmentFrequency Reference Adjustment (Opt.1D5 only)1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleFrequency R

104 3 AdjustmentFrequency Reference Adjustment (Opt.1D5 only)2. Adjust “TIME BASE ADJ” on the rear panel so that the counter reading is 10 MHz ± 0.1

1054. Troubleshooting4 TroubleshootingThis chapter describes troubleshooting flow and provides the procedure to determine which group or assembly is

106 4 TroubleshootingTROUBLESHOOTING SUMMARYTROUBLESHOOTING SUMMARYThe troubleshooting strategy of this manual is based on a verification (rather tha

4 107TroubleshootingTROUBLESHOOTING SUMMARY4. TroubleshootingFigure 4-1 Troubleshooting Organization

108 4 TroubleshootingSTART HERESTART HEREThis chapter contains the following troubleshooting procedures. By performing them in the order listed below

4 109TroubleshootingINSPECT THE POWER ON SEQUENCE4. TroubleshootingINSPECT THE POWER ON SEQUENCECheck the FanTurn the analyzer power on. Inspect the

11 0 4 TroubleshootingINSPECT THE REAR PANEL FEATUREINSPECT THE REAR PANEL FEATUREIf the 4294A is operating unexpectedly after these checks are verif

4 111TroubleshootingInternal Tests Failure Troubleshooting4. TroubleshootingInternal Tests Failure TroubleshootingCheck the Power-On SelftestThe anal

4 Safety SymbolGeneral definitions of safety symbols used on the instrument or in manuals are listed below.Instruction Manual symbol: the product is

Table 4-1 Troubleshooting Information for Internal Test FailureTest No.First Failed Test Probable Faulty AssemblyA1 A51 A50 A9 A2 A7 A3 A4 A5 A6 A81

4 113TroubleshootingExternal Tests Failure Troubleshooting4. TroubleshootingExternal Tests Failure TroubleshootingIf you can't identify the faul

Table 4-2 Troubleshooting Information for External Test FailureTest No.First Failed Test Probable Faulty AssemblyA1 A51 A30 A53 A2 A7 A3 A4 A5 A6 A8

4 115TroubleshootingPerformance Tests Failure Troubleshooting4. TroubleshootingPerformance Tests Failure TroubleshootingPerform the following procedu

Table 4-4 Troubleshooting Information for Performance Test Failure 2Test No.First Failed Test Probable Faulty AssemblyA1 A51 A50 A9 A2 A7 A3 A4 A5 A

1175. Power SupplyTroubleshooting5 Power Supply TroubleshootingThis chapter describes troubleshooting procedures to isolate the faulty assembly with

11 8 5 Power Supply TroubleshootingINTRODUCTIONINTRODUCTIONUse this procedure only if you have read Troubleshooting, and you believe the problem is i

5 119Power Supply TroubleshootingINTRODUCTION5. Power SupplyTroubleshootingFigure 5-1 Power Supply Lines Simplified Block Diagram

120 5 Power Supply TroubleshootingSTART HERESTART HERE1. Check the Fan Look at the fan on the rear panel. Check that the fan is rotating.• If the fan

5 121Power Supply TroubleshootingSTART HERE5. Power SupplyTroubleshootingA50 Shutdown LEDThe A50 SHUTDOWN LED turning off indicates some of A50 power

5WarrantyThis Agilent Technologies instrument product is warranted against defects in material and workmanship for a period corresponding to the indi

122 5 Power Supply TroubleshootingSTART HEREFigure 5-3 A1 +5 VD LED LocationMeasure the A1 +5 VD VoltageMeasure the DC voltage on a test point A1TP4

5 123Power Supply TroubleshootingSTART HERE5. Power SupplyTroubleshootingFigure 5-4 A9 Two LEDs LocationDisconnect Wire from A3 P11Turn the analyzer

124 5 Power Supply TroubleshootingSTART HEREFigure 5-5 A3 P11 and RF Cable “M” location

5 125Power Supply TroubleshootingFIND OUT WHY THE FAN IS NOT ROTATING5. Power SupplyTroubleshootingFIND OUT WHY THE FAN IS NOT ROTATINGIf the fan is

126 5 Power Supply TroubleshootingFIND OUT WHY THE FAN IS NOT ROTATINGFigure 5-7 A40 Output Voltage3. Check the A50 SHUTDOWN LEDWhen the fan stops,

5 127Power Supply TroubleshootingFIND OUT WHY THE A50 SHUTDOWN LED IS OFF5. Power SupplyTroubleshootingFIND OUT WHY THE A50 SHUTDOWN LED IS OFFUse th

128 5 Power Supply TroubleshootingFIND OUT WHY THE A1 +5 VD LED IS NOT ON STEADILYFIND OUT WHY THE A1 +5 VD LED IS NOT ON STEADILYIf the +5 VD LED is

5 129Power Supply TroubleshootingFIND OUT WHY THE A1 +5 VD LED IS NOT ON STEADILY5. Power SupplyTroubleshootingFigure 5-8 A1 CPU Connector Location3

130 5 Power Supply TroubleshootingFIND OUT WHY THE A1 +5 VD LED IS NOT ON STEADILY3. Reinstall the removed assemblies one at a time. Turn the analyze

5 131Power Supply TroubleshootingTROUBLSHOOT THE FAN AND THE A50 DC-DC CONVERTER5. Power SupplyTroubleshootingTROUBLSHOOT THE FAN AND THE A50 DC-DC C

6 For any assistance, contact your nearest Agilent Technologies Sales and Service Office. Addresses are provided at the back of this manual.Typeface

132 5 Power Supply TroubleshootingTROUBLSHOOT THE FAN AND THE A50 DC-DC CONVERTER2. Troubleshoot the A50 DC-DC Converter1. Turn the analyzer power of

1336. Digital ControlTroubleshooting6 Digital Control TroubleshootingThis chapter describes troubleshooting procedures to isolate the faulty assembl

134 6 Digital Control TroubleshootingINTRODUCTIONINTRODUCTIONUse this procedure only if you have followed the procedures in the Troubleshooting chapt

6 135Digital Control TroubleshootingINTRODUCTION6. Digital ControlTroubleshootingFigure 6-1 Digital Control Group Simplified Block Diagram

136 6 Digital Control TroubleshootingA1 CPU ReplacementA1 CPU ReplacementWhen you replace a faulty A1 CPU with a new one, remove the EEPROM from the

6 137Digital Control TroubleshootingFIRMWARE INSTALLATION6. Digital ControlTroubleshootingFIRMWARE INSTALLATIONNo firmware is installed in new A1 CPU

138 6 Digital Control TroubleshootingFIRMWARE INSTALLATIONFigure 6-4 Bootloader Menu Display4. Insert the firmware diskette into the floppy disk dri

6 139Digital Control TroubleshootingSTART HERE6. Digital ControlTroubleshootingSTART HERE1. Check the Power-On SequenceSee the INSPECT THE POWER-ON S

140 6 Digital Control TroubleshootingSTART HEREFigure 6-5 A1 Eight LEDs' Pattern

6 141Digital Control TroubleshootingSTART HERE6. Digital ControlTroubleshooting2. Check the A1 CPU1. Turn the analyzer power on.2. Press [System], DI

Contents 71. General InformationOrganization of Service Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

142 6 Digital Control TroubleshootingSTART HEREFigure 6-6 Bootloader Display4. Check the A1 Volatile Memory1. Turn the analyzer power on.2. Press [S

6 143Digital Control TroubleshootingSTART HERE6. Digital ControlTroubleshooting2. Press all of the front panel keys. The abbreviated key name should

144 6 Digital Control TroubleshootingSTART HEREFigure 6-7 24 BIT I/O PORT Test Setup3. Turn the analyzer power on.4. Press [Preset], [System], DIAGN

6 145Digital Control TroubleshootingSTART HERE6. Digital ControlTroubleshooting9. Press done.10. Connect a 10Base-T twisted pair “straight-through” c

146 6 Digital Control TroubleshootingTROUBLESHOOT THE A51 GSP and A52 LCDTROUBLESHOOT THE A51 GSP and A52 LCDUse this procedure when the LCD (Liquid

1477. Service Related Menus7 Service Related MenusThis chapter describes the functions of the diagnosis key menus. These menus are used to test, ver

148 7 Service Related MenusDIAGNOSTIC TEST MenuDIAGNOSTIC TEST MenuThe diagnosis key menus consist of several menus that are accessed through the dia

7 149Service Related MenusDIAGNOSTIC TEST Menu7. Service Related MenusFigure 7-1 Test Status on the DisplayTo see the test status of the desired tes

150 7 Service Related MenusDIAGNOSTIC TEST MenuINTERNAL TESTThis group of tests run without external connections or operator interaction. All return

7 151Service Related MenusDIAGNOSTIC TEST Menu7. Service Related Menus5: ADJUST DATA Verifies that all correction constants which compensate for the

8 ContentsRequired Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

152 7 Service Related MenusDIAGNOSTIC TEST Menu(230kHz) signal at a frequency bus node. It checks that each measured value is within limits.15: A2/A9

7 153Service Related MenusDIAGNOSTIC TEST Menu7. Service Related Menusthe adapter selection of the analyzer is changed to the “NONE” status.23: A2 AT

154 7 Service Related MenusDIAGNOSTIC TEST Menu

1558. Theory of Operation8 Theory of OperationThis chapter describes the general overall operation of the 4294A and the operation of each functional

156 8 Theory of OperationOVERALL OPERATIONOVERALL OPERATIONOVERALL MEASUREMENT THEORYThe 4294A measures the impedance of the Device Under Test (DUT)

8 157Theory of OperationOVERALL OPERATION8. Theory of OperationProcessor), the A52 LCD, and the A53 FDD. These assemblies combine to provide digital

158 8 Theory of OperationPOWER SUPPLY OPERATIONPOWER SUPPLY OPERATIONThe power supply functional group consists of the following assemblies:• A40 Pre

8 159Theory of OperationPOWER SUPPLY OPERATION8. Theory of OperationFigure 8-2 Power Supply Functional Group, Simplified Block DiagramLine Power Mod

160 8 Theory of OperationPOWER SUPPLY OPERATIONA40 PreregulatorThe A40 preregulator contains a rectifier and a switching regulator, converts the line

8 161Theory of OperationDIGITAL CONTROL OPERATION8. Theory of OperationDIGITAL CONTROL OPERATIONThe digital control functional group consists of the

Contents 95. Power Supply TroubleshootingINTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

162 8 Theory of OperationDIGITAL CONTROL OPERATIONFigure 8-3 Digital Control Group Simplified Block Diagram

8 163Theory of OperationDIGITAL CONTROL OPERATION8. Theory of OperationA1 CPUThe A1 CPU consists of the following circuits and parts:CPU central proc

164 8 Theory of OperationDIGITAL CONTROL OPERATIONterminal, the PRINTER port, the 24-BIT I/O PORT, and the LAN port.A51 GSPThe A51 GSP (graphics syst

8 165Theory of OperationSOURCE THEORY8. Theory of OperationSOURCE THEORYThe source group generates all analog signals in the 4294A, a phase-locked te

166 8 Theory of OperationSOURCE THEORY• 8MHz (for A/D converter clock): is supplied to the A8 through the A20.• 10MHz: is routed to the INT REF Outpu

8 167Theory of OperationTRANSDUCER THEORY8. Theory of OperationTRANSDUCER THEORYThe transducer group balances the range resistor current with the DUT

168 8 Theory of OperationTRANSDUCER THEORYA3 Hp Amp.The A3 Hp amp. senses the voltage across the DUT (Edut), and transmit the voltage (Edut) to the v

8 169Theory of OperationVECTOR RATIO DETECTOR THEORY8. Theory of OperationVECTOR RATIO DETECTOR THEORYThe A8 board is the vector ratio detector. The

170 8 Theory of OperationVECTOR RATIO DETECTOR THEORY

10 ContentsTest Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1719. Parts Replacement9 Parts ReplacementThis chapter contains the 4294A’s replaceable parts list and the procedure to replace its assemblies.

172 9 Parts ReplacementReplaceable Part ListReplaceable Part ListOrdering InformationTo order part listed in the replaceable part lists, quote the Ag

9 173Parts ReplacementReplaceable Part List9. Parts ReplacementParts ListFigure 9-1 Power Cables and Plug Configurations

174 9 Parts ReplacementReplaceable Part ListFigure 9-2 Top View (Major Assemblies)

Table 9-1 Top View (Major Assemblies)Reference DesignationAgilent Part NumberCheck DigitQty. DescriptionA2 04294-66502 3 1 High Current04294-69502 9

176 9 Parts ReplacementReplaceable Part ListFigure 9-3 Top View (Cables and Wires)

Table 9-2 Top View (Cables and Wires)Reference DesignationAgilent Part NumberCheck DigitQty. DescriptionA 04294-61601 3 1 RF Cable “A”, A3 to A4B 043

178 9 Parts ReplacementReplaceable Part ListFigure 9-4 Top View (Miscellaneous Parts)Table 9-3 Top View (Miscellaneous Parts)Reference DesignationA

9 179Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-5 Top View (Shield)Table 9-4 Top View (Shield)Reference DesignationAgilent

180 9 Parts ReplacementReplaceable Part ListFigure 9-6 Bottom View (Major Assemblies)Table 9-5 Bottom View (Major Assembly)Reference DesignationAgi

Contents 11A4 Lc Amplifier Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9 181Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-7 Bottom View (Cables and Wires)Table 9-6 Bottom View (Cables and Wires)Ref

182 9 Parts ReplacementReplaceable Part ListFigure 9-8 Bottom View (Miscellaneous Parts)

Table 9-7 Bottom View (Miscellaneous Parts)Reference DesignationAgilent Part NumberCheck DigitQty. Description1 0515-1719 3 4 Screw M42 0515-1550 0 1

184 9 Parts ReplacementReplaceable Part ListFigure 9-9 Front Assembly 1Table 9-8 Front Assembly 1Reference DesignationAgilent Part NumberCheck Digi

9 185Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-10 Front Assembly 2Table 9-9 Front Assembly 2Reference DesignationAgilent P

186 9 Parts ReplacementReplaceable Part ListFigure 9-11 Front Assembly 3Table 9-10 Front Assembly 3Reference DesignationAgilent Part NumberCheck Di

9 187Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-12 Front Assembly 4Tabl e 9 - 11 Front Ass emb l y 4Reference Designation

188 9 Parts ReplacementReplaceable Part ListFigure 9-13 Front Assembly 5Table 9-12 Front Assembly 5Reference DesignationAgilent Part NumberCheck Di

9 189Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-14 Front Assembly 6Table 9-13 Front Assembly 6Reference DesignationAgilent

190 9 Parts ReplacementReplaceable Part ListFigure 9-15 Front Assembly 7Table 9-14 Front Assembly 7Reference DesignationAgilent Part NumberCheck Di

○C Copyright 2009 Agilent Technologies Change 2 Change the Measurement Uncertainty value of OSC Level Accuracy Test (Page 69 to 70) to the

12 Contents

9 191Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-16 Front Assembly 8Table 9-15 Front Assembly 8Reference DesignationAgilent

192 9 Parts ReplacementReplaceable Part ListFigure 9-17 Front Assembly 9Table 9-16 Front Assembly 9Reference DesignationAgilent Part NumberCheck Di

9 193Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-18 Front Assembly 10Table 9-17 Front Assembly 10Reference DesignationAgilen

194 9 Parts ReplacementReplaceable Part ListFigure 9-19 Rear Assembly 1Table 9-18 Rear Assembly 1Reference DesignationAgilent Part NumberCheck Digi

9 195Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-20 Rear Assembly 2Table 9-19 Rear Assembly 2Reference DesignationAgilent Pa

196 9 Parts ReplacementReplaceable Part ListFigure 9-21 Rear Assembly 3

Table 9-20 Rear Assembly 3Reference DesignationAgilent Part NumberCheck DigitQty. Description1 1250-0252 6 1 BNC Connector2190-0102 8 1 Washer2950-00

198 9 Parts ReplacementReplaceable Part ListFigure 9-22 Rear Assembly 4Table 9-21 Rear Assembly 4Reference DesignationAgilent Part NumberCheck Digi

9 199Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-23 Rear Assembly 5Table 9-22 Rear Assembly 5Reference DesignationAgilent Pa

200 9 Parts ReplacementReplaceable Part ListFigure 9-24 Side ViewTable 9-23 Side ViewReference DesignationAgilent Part NumberCheck DigitQty. Descri

131. General Information1 General InformationThis Service Manual is a guide to servicing the 4294A Precision Impedance Analyzer. The Service Manual

9 201Parts ReplacementReplaceable Part List9. Parts ReplacementFigure 9-25 Chassis AssemblyTable 9-24 Chassis AssemblyReference DesignationAgilent

Table 9-25 Other PartsReference DesignationAgilent Part NumberCheck DigitQty. Description1 04294-61001 7 1 100 Ω Resistor2 1250-1859 1 1 BNC(m)-BNC(m

9 203Parts ReplacementReplacement Procedure9. Parts ReplacementReplacement ProcedureThis Chapter describes how to replace the 4294A major assemblies.

204 9 Parts ReplacementReplacement Procedure2. Remove the two screws at the side strap handle caps to remove the strap.3. Slide off the side cover to

9 205Parts ReplacementReplacement Procedure9. Parts Replacement6. Gradually pull the rear panel assembly out from the rear frame.A1 CPU Board Replace

206 9 Parts ReplacementReplacement Procedure6. Disconnect the cable “C” from the A3 Hp Amplifier, and connect it to the replacement A3.A4 Lc Amplifie

9 207Parts ReplacementReplacement Procedure9. Parts Replacement2. Remove the top shield.3. Disconnect the cables “K” and “L” from the A7 board.4. Dis

208 9 Parts ReplacementReplacement ProcedureFigure 9-26 A9 Floating Power Supply3. Disconnect the cables (item ¦ and Æ)from the A9 board.4. Remove f

9 209Parts ReplacementReplacement Procedure9. Parts ReplacementA52 LCD RemovalTools Required• Torx screwdriver, T15• Pozidriv Screwdriver, pt size #1

210 9 Parts ReplacementReplacement ProcedureFigure 9-27 Preregulator ReplacementPower Switch ReplacementTools Required• Torx screwdriver, T15• Pozid

14 1 General InformationOrganization of Service ManualOrganization of Service ManualThis manual consists of the major chapters listed below. This sec

9 211Parts ReplacementReplacement Procedure9. Parts ReplacementFigure 9-28 Cable Clamp3. Remove the angel from the chassis.4. Disconnect the power s

212 9 Parts ReplacementReplacement Procedure

21310. Post Repair Procedures10 Post Repair ProceduresThis chapter lists the procedures required to verify the 4294A operation after an assembly is

214 10 Post Repair ProceduresPOST REPAIR PROCEDURESPOST REPAIR PROCEDURESTable 10-1 Post Repair Procedures lists the required procedures that must be

10 215Post Repair ProceduresPOST REPAIR PROCEDURES10. Post Repair ProceduresA7 Synthesizer Frequency Accuracy CC Image Rejection CC Null Detector Off

216 10 Post Repair ProceduresPOST REPAIR PROCEDURES

217A. Manual ChangesA Manual ChangesThis appendix contains the information required to adapt this manual to earlier versions or configurations of th

218 Appendix A Manual ChangesManual ChangesManual ChangesTo adapt this manual to your 4294A, refer to Table A-1 and Table A-2.Tabl e A -1

219B. Power RequirementB Power Requirement

220 Appendix B Power RequirementReplacing FuseReplacing FuseFuse SelectionSelect proper fuse according to the Table B-1.Table B-1 Fuse SelectionFuse

1 15General InformationInstruments Covered by This Manual1. General InformationInstruments Covered by This ManualAgilent Technologies uses a two-part

Appendix B 221Power RequirementPower RequirementsB. Power RequirementPower RequirementsThe 4294A requires the following power source:Voltage : 90 to

222 Appendix B Power RequirementPower RequirementsFigure B-1 Power Cable Supplied

223C. Error MessagesC Error messagesThe 4294A provides error messages to indicate its operating status. This appendix describes the error messages o

224 Appendix C Error messagesOrder of AlphabetNOTE If an error with a positive error number occurs, only its error message is displayed on the LCD fo

Appendix C 225Error messagesOrder of AlphabetC. Error Messages136 BRIDGE UNBALANCEDBecause the connection of a DUT or the setting for it was incorrec

226 Appendix C Error messagesOrder of Alphabeterror coefficients based on the measurement.-281 Cannot create programPrograms cannot be created. Insuf

Appendix C 227Error messagesOrder of AlphabetC. Error MessagesA comprehensive syntax error occurred for which the 4294A could not detect further deta

228 Appendix C Error messagesOrder of Alphabet138 DCBIAS CONSTANT OPERATION FAILEDWhen the DC bias mode was constant voltage (VOLT CONSTANT) or const

Appendix C 229Error messagesOrder of AlphabetC. Error MessagesAn equation data element was received at where the 4294A did not accept any equation da

230 Appendix C Error messagesOrder of Alphabet-105 GET not allowedA group execution trigger (GET) was received in a program message. (Refer to IEEE48

16 1 General InformationRequire EquipmentRequire EquipmentTable 1-1 lists the recommended equipment for performing maintenance on the 4294A.Table 1-

Appendix C 231Error messagesOrder of AlphabetC. Error Messages-161 Invalid block dataBlock data was expected but given block data was invalid for som

232 Appendix C Error messagesOrder of AlphabetL132 LIST SWEEP ONLYWhen a sweep type other than the list sweep was specified, you attempted to execute

Appendix C 233Error messagesOrder of AlphabetC. Error MessagesWhen the memory trace was not displayed, you attempted to set the function that needed

234 Appendix C Error messagesOrder of Alphabet(COPY FILE) key, no file or directory corresponding to the execution of the key was on the floppy disk.

Appendix C 235Error messagesOrder of AlphabetC. Error MessagesWhen the percent format was not selected as the display format, you attempted to select

236 Appendix C Error messagesOrder of Alphabetthe error. This code simply indicates the occurrence of a Query error that is defined in IEEE488.2,11.5

Appendix C 237Error messagesOrder of AlphabetC. Error MessagesWhen the band width function was off, you attempted to execute a command to search the

238 Appendix C Error messagesOrder of AlphabetBefore executing a command to set the phase unit or a command to set the phase expansion display, perfo

Appendix C 239Error messagesOrder of AlphabetC. Error MessagesFor a 24-bit input/output (I/O) shared port (port C and port D), you attempted to execu

240 Appendix C Error messagesOrder of Alphabet

1 17General InformationRequire Equipment1. General InformationAdapter 7 mm-N(m) AdapterDual Banana-BNC(f) AdapterN(m)-BNC(m) AdapterBNC(f)-BNC(f) Ada

18 1 General InformationRequire Equipment

192. Performance Test2 Performance TestThis chapter contains the performance test for the 4294A Precision Impedance Analyzer. These performance test

20 2 Performance TestPerformance TestPerformance TestIntroductionThis section provides the test procedures used to verify that the 4294A’s specificat

2 21Performance TestPerformance Test2. Performance TestFrequency Accuracy TestThis test checks the frequency accuracy of the internal frequency refer

○C Copyright 2009 Agilent Technologies OSC Level Accuracy (with 42942A Terminal Adapter) OSC Level Frequency Test Limits Test Result Mea

22 2 Performance TestPerformance TestFigure 2-1 Frequency Accuracy Test Setup2. Initialize the frequency counter. Then set the controls as follows.G

2 23Performance TestPerformance Test2. Performance TestOSC Level Accuracy TestThis test checks the actual power level of the test signal at 10 MHz.Sp

24 2 Performance TestPerformance TestFigure 2-2 OSC Level Accuracy Test Setup 12. Press Reset key (blue,⇒) to initialize the multimeter, then Set it

2 25Performance TestPerformance Test2. Performance Test7. Confirm that the monitor accuracy is within the monitor accuracy limit.NOTE If the monitor

26 2 Performance TestPerformance TestFigure 2-3 OSC Level Accuracy Test Setup 212. Set the 4294A as follows.Setting OperationCenter Frequency: 1 MHz

2 27Performance TestPerformance Test2. Performance Test16. Repeat from Step 13 to 15 for all frequency settings in Table 2-2Table 2-2 OSC Level Accu

28 2 Performance TestPerformance TestFigure 2-4 42942A Setup25. Setup the 42942A as follows.a. Press [Cal],Adapter,7mm 42942A,SETUP.b. Connect the O

2 29Performance TestPerformance Test2. Performance TestFigure 2-5 OSC Level Accuracy Test Setup 327. Set the 4294A as follows.Setting OperationCente

30 2 Performance TestPerformance Test31. Repeat from Step 28 to 30 for all frequency settings in Table 2-3Table 2-3 OSC Level Accuracy Test (Interfa

2 31Performance TestPerformance Test2. Performance TestDC Bias Monitor Accuracy TestThis test checks the accuracy of the DC bias monitor.Specificatio

○C Copyright 2009 Agilent Technologies Accessory: Nothing Standard: 1pF OSC Level Frequency Parameter Test Limits Test Result Measurement U

32 2 Performance TestPerformance Testb. Press [NPLC] - [1] - [0] - [0] - [Enter].3. Press [Preset] to initialize the 4294A, then set it as follows.Se

2 33Performance TestPerformance Test2. Performance TestFigure 2-7 DC Bias Monitor Accuracy Test (current) Setup 9. Press Reset key (blue - ⇒) to ini

34 2 Performance TestPerformance Test12. Press [Trigger] - Single for a single sweep measurement.13. Record the multimeter reading and the DC Bias mo

2 35Performance TestPerformance Test2. Performance TestDC Bias Level Accuracy TestThis test checks the accuracy of the DC bias level at several level

36 2 Performance TestPerformance TestFigure 2-8 DC Bias Level Accuracy Test (voltage) Setup2. Press Reset key (blue - ⇒) to initialize the multimete

Table 2-6 DC Bias Monitor Accuracy Test (voltage) SettingBias Level0 V25 V40 V–25 V–40 V2 37Performance TestPerformance Test2. Performance Test8. Di

38 2 Performance TestPerformance TestMeasurement Accuracy TestThis test checks the DC bias level of the stimulus signal at several frequencies from 4

2 39Performance TestPerformance Test2. Performance TestFigure 2-9 Measurement Accuracy Test Setup (Accessory: None)5. Press [Cal] - FIXTURE COMPEN -

40 2 Performance TestPerformance TestFigure 2-10 Sweep List for Measurement Accuracy Testc. Press done.10. Press done to save the sweep list menu.11

2 41Performance TestPerformance Test2. Performance TestFigure 2-11 Measurement Value List15. Record the 4294A reading on the calculation sheet for a

○C Copyright 2009 Agilent Technologies Accessory: Nothing Standard: 1000 pF OSC Level Frequency Parameter Test LimitsTest Result Measuremen

Table 2-8 Measurement Accuracy Test(Accessory: None, Standard Capacitor) SettingStandard CapacitorOSC Level Frequency1 pF 0.5 V 1 MHz3 MHz10 pF 0.5 V

2 43Performance TestPerformance Test2. Performance Test16. Connect the 10 Ω standard resistor to the 4294A UNKNOWN Terminal as shown in Figure 2-9 on

44 2 Performance TestPerformance Test21. Press [Cal] - Adapter - 7mm 42942A to set the adapter to the 42942A.22. Setup the 4294A as follows.NOTE If S

2 45Performance TestPerformance Test2. Performance Testc. Gently inserts the airline center conductor into the open termination center conductor. Mat

46 2 Performance TestPerformance Testtorque. (A 1/2 inch open end wrench may be necessary to hold the airline stationary.)Figure 2-14 10 cm Airline

2 47Performance TestPerformance Test2. Performance TestFigure 2-15 Connection for phase compensationd. Press PHASE COMP to measure the phase compens

48 2 Performance TestPerformance TestFigure 2-17 Measurement Accuracy Test Setup (Accessory: 1m Test Leads)35. Connect the OPEN Termination as shown

Table 2-12 Measurement Accuracy Test(Accesory:1m Test Leads, Standard Capacitor) SettingStandard CapacitorOSC Level Frequency10 pF 0.5 V 1 kHz1 MHz3

50 2 Performance TestPerformance TestFigure 2-18 Measurement Accuracy Test Setup (Accessory: 2m Test Leads)49. Press [Cal] - FIXTURE COMPEN - OPEN50

Table 2-14 Measurement Accuracy Test(Accesory:2m Test Leads, Standard Capacitor) SettingStandard CapacitorOSC Level Frequency10 pF 0.5 V 1 kHz1 MHz3

○C Copyright 2009 Agilent Technologies Accessory: Nothing Standard: 10 Ω OSC Level Frequency Parameter Test Limits Test Result Measurement

52 2 Performance TestCalculation SheetCalculation SheetOSC Level Accuracy TestOSC Level Accuracy(Accessory: Nothing, 40 Hz to 100 kHz)OSCLevel [a]Fre

2 53Performance TestCalculation Sheet2. Performance TestOSC Level Accuracy (Accessory: Nothing, 1 MHz to 110 MHz)OSCLevel [a]Freq. MonitorReading[b]P

54 2 Performance TestCalculation SheetDC Bias Monitor Accuracy TestDC Bias Monitor Accuracy Test (voltage)Bias Level Monitor Reading [a]Multimeter Re

2 55Performance TestCalculation Sheet2. Performance TestDC Bias Level Accuracy TestDC Bias Level Accuracy Test (voltage)Bias Level [a] Multimeter Rea

56 2 Performance TestCalculation SheetMeasurement Accuracy TestStandard Calibration Values (16380A/C,42030A)Standard Frequency Parameter Calibration

2 57Performance TestCalculation Sheet2. Performance Test0.01 μF 120 Hz Cp nF CV23D

58 2 Performance TestCalculation SheetStandard Calibration Values (16190A)Table 2-16 Standard Calibration ValueStandard Frequency Parameter Calibrat

2 59Performance TestCalculation Sheet2. Performance TestMeasurement Accuracy TestAccessory: NothingStandard: 1 pFOSC Level Frequency Parameter 42

60 2 Performance TestCalculation SheetAccessory: NothingStandard: 100 pFOSC Level Frequency Parameter 4294A reading [a]Test Result Equation0.5 V

2 61Performance TestCalculation Sheet2. Performance TestAccessory: NothingStandard: 1000 pFOSC Level Frequency Parameter 4294A reading [a]Test Re

○C Copyright 2009 Agilent Technologies Accessory: 42942A Terminal Adapter Standard: 10 cm Airline with SHORT OSC Level Frequency Parameter

62 2 Performance TestCalculation SheetAccessory: NothingStandard: 0.1 μFOSC Level Frequency Parameter 4294A reading [a]Test Result Equation0.5 V

2 63Performance TestCalculation Sheet2. Performance TestAccessory: NothingStandard: 1 ΩOSC Level Frequency Parameter 4294A reading [a]Test Result

64 2 Performance TestCalculation SheetAccessory: 42942A Terminal AdapterStandard: OPENOSC Level Frequency Parameter 4294A reading [a]Test Result

2 65Performance TestCalculation Sheet2. Performance TestAccessory: 1m Test LeadsStandard: 100 pFOSC Level Frequency Parameter 4294A reading [a]Te

66 2 Performance TestCalculation SheetAccessory: 2m Test LeadsStandard: 10 pFOSC Level Frequency Parameter 4294A reading [a]Test Result Equation0

2 67Performance TestCalculation Sheet2. Performance TestAccessory: 2m Test LeadsStandard: 100 mΩOSC Level Frequency Parameter 4294A reading [a]Te

68 2 Performance TestPerformance Test RecordPerformance Test RecordAgilent Technologies 4294A Precision Impedance AnalyzerSerial Number:

2 69Performance TestPerformance Test Record2. Performance TestOSC Level Accuracy TestOSC Level Accuracy (Accessory: Nothing)OSC Level Frequency Test

70 2 Performance TestPerformance Test RecordOSC Level Accuracy (with 42942A Terminal Adapter)OSC Level Frequency Test Li mi t Test Result Measurement

2 71Performance TestPerformance Test Record2. Performance TestDC Bias Level Accuracy TestBias Level Test Limit Test R e sul t Measurement Uncertainty

○C Copyright 2009 Agilent Technologies Accessory: 2m Test Leads Standard: 10 pF OSC Level Frequency Parameter Test Limits Test Result Meas

72 2 Performance TestPerformance Test RecordMeasurement Accuracy TestAccessory: NothingStandard: 1 pFOSC Level Frequency Parameter Test Limit Te

2 73Performance TestPerformance Test Record2. Performance TestAccessory: NothingStandard: 100 pFOSC Level Frequency Parameter Test Limit Te st R

74 2 Performance TestPerformance Test RecordAccessory: NothingStandard: 1000 pFOSC Level Frequency Parameter Test Limit Te st Re sult Measuremen

2 75Performance TestPerformance Test Record2. Performance TestAccessory: NothingStandard: 0.1 μFOSC Level Frequency Parameter Test Limit Te st R

76 2 Performance TestPerformance Test RecordAccessory: NothingStandard: 10 ΩOSC Level Frequency Parameter Test Limit Te st Re sult Measurement U

2 77Performance TestPerformance Test Record2. Performance TestAccessory: 42942A Terminal AdapterStandard: 50 ΩOSC Level Frequency Parameter Test

78 2 Performance TestPerformance Test RecordAccessory: 1m Test LeadsStandard: 10 pFOSC Level Frequency Parameter Test Limit Te st Re sult Measur

2 79Performance TestPerformance Test Record2. Performance TestAccessory: 1m Test LeadsStandard: 1 ΩOSC Level Frequency Parameter Test Limit Te s

80 2 Performance TestPerformance Test RecordAccessory: 2m Test LeadsStandard: 100 pFOSC Level Frequency Parameter Test Limit Te st Re sult Measu

811. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter Title3 AdjustmentThis Chapter describes the Adjustment procedures require

Agilent 4294A Precision Impedance AnalyzerService ManualThird EditionManufacturing No. 04294-90110January 2007

82 3 AdjustmentSafety ConsiderationsSafety ConsiderationsThis manual contains NOTEs, CAUTIONs, and WARNINGs that must be followed to ensure the safet

3 83AdjustmentOrder of Adjustment1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleOrder of AdjustmentWhen performing mor

84 3 AdjustmentPreparation for using the Adjustment ProgramPreparation for using the Adjustment ProgramTo use the Adjustment Program, some preparatio

3 85AdjustmentPreparation for using the Adjustment Program1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleFigure 3-1 A

86 3 AdjustmentRunning the Adjustment ProgramRunning the Adjustment Program1. Start the HP VEE.2. Load the adjustment program file into the HP VEE as

3 87AdjustmentFrequency Accuracy Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleFrequency Accuracy

88 3 AdjustmentImage Rejection Correction ConstantsImage Rejection Correction ConstantsThe purpose of this procedure is to generate the correction co

3 89AdjustmentLPOT-Mixer Offset Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleLPOT-Mixer Offset C

90 3 AdjustmentNull Detector Offset Correction ConstantsNull Detector Offset Correction ConstantsThe purpose of this procedure is to adjust the Null

3 91AdjustmentNull Loop Phase Correction Constants1. Chapter Title2. Chapter Title 3. Adjustment4. Chapter Title5. Chapter TitleNull Loop Phase Corre