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U3042AM08
Service Information

RF Switching Failures

Typical failures may be the loss of RF switch control or a non RF failure as outlined in
the prior section. The internal RF switches used in this instrument are controlled by
the +21 Vdc from the Switch Driver board.

Confirm that the analyzer and test set are properly connected using the Test Set
I/O cable (N4011-21002). See

Figure 19 on page 2

Using Multiport Mode (Option 551), verify that the analyzer’s firmware is correct,
and that the test set file is loaded into the analyzer. Refer to

“Network Analyzer

Requirements” on page

Using the I/O command values, confirm that the correct address and data values
are used. Refer to

“Address and Data Values” on page 5

Follow the

“Non-RF Failures” on page

procedures (if not already done so).

Front Panel R and S indicator LED Check.

Confirm that the test set Controller board Status LEDs are On. Refer to

Figure

on page 8

. If the LEDs are Off remove the Switch Driver board, if the LEDs

are remain Off replace the Controller board.

If the Status LEDs are On and the front panel Active LED is On, suspect the
front panel LED board or the ribbon cable (replace as needed).

Keysight U3042AM08 User's and Service Guide

Содержание U3042AM08

Страница 1: ...chnologies U3042AM08 Multiport Test Set Extension Notice This document contains references to Agilent Please note that Agilent s Test and Measurement business has become Keysight Technologies For more...

Страница 2: ...to U S government customers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula The license...

Страница 3: ...nhanced Measurement 13 Dimensions and Space Requirements 13 Maximum and Recommended Power Levels 14 Typical Reflection Tracking 15 Front and Rear Panel Features 16 System Setup with N5230C and N5232A...

Страница 4: ...o Access the Command Processor 50 SCPI Command Processor Console 52 Method 1 Using GPIB SCPI Command Values 52 Method 2 Using the Test Set Address and Data Values 53 Option 129 External Source Path 54...

Страница 5: ...ol Board 80 Switch Interface Board 80 Front Panel LED Boards 80 DUT Control Board 80 Power Supply 80 RF Coupler Bridges 81 RF Switch Components 81 Source and Receiver Switch Paths 81 Troubleshooting t...

Страница 6: ...97 Battery Collection 98 EMC 98 South Korean Class A EMC Declaration 98 Safety 98 Acoustic Statement European Machinery Directive 98 Declaration of Conformity 98 Keysight Support Services and Assistan...

Страница 7: ...U3042AM08...

Страница 8: ...to use and service the U3042AM08 Multiport Test Set with the Keysight 4 Port PNA PNA L and PNA X for a 12 Port network analyzer solution Figure 1 4 Port PNA L with U3042M08 Figure 2 4 Port PNA or PNA...

Страница 9: ...is damaged it should be kept until the contents of the shipment have been checked mechanically and electrically If there is physical damage refer to Contacting Keysight on page 99 Keep the damaged shi...

Страница 10: ...twork analyzer option requirements The analyzer s frequency range must be equal to or exceed that of the test set so that the measurement system covers the full frequency range of the test set The U30...

Страница 11: ...require one of the following kits to interface the test set with your network analyzer The Interface kit model option includes the hardware lock link and cable kit listed in Table 3 Interface Kit Opti...

Страница 12: ...mine the approximate performance of the system Power Requirements Verify that the required AC power is available before installing the Test Set to the analyzer 100 120 220 240 V 50 60Hz The instrument...

Страница 13: ...perating temperature of the instrument by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts forced convection must be used Requir...

Страница 14: ...determine the maximum input power levels for the access and test ports or to optimize the power levels in the receivers NOTE Damage and maximum levels are not necessarily the optimum level Table 5 Re...

Страница 15: ...its see Table 6 and Table 7 Table 6 Typical Reflection Tracking with PNA L Frequency Standard 700 300 kHz to 10 MHz 0 2 10 MHz to 4 GHz 3 4 GHz to 6 GHz 4 6 GHz to 10 5 GHz 5 10 5 GHz to 13 5 GHz 6 13...

Страница 16: ...3 Figure 4 Option 129 Front Panel Standard Front Panel Access Ports Coupler Arm Standby Switch Port Status LEDs 4 sets LED Active Coupler Thru Receiver Out Source In SOURCE IN Opt 129 SOURCE OUT Opt 1...

Страница 17: ...Standby Switch Note that this switch is Standby only not a line switch The main power cord can be used as the system disconnecting device It disconnects the mains circuits from the mains supply Active...

Страница 18: ...est Set to a conductive object cabinet or structure to ensure a common potential and reduce leakage current in a system Requires an English 1 4 20 thread nut 2950 0004 and lock washer 2190 0067 The Pa...

Страница 19: ...he instrument The front panel switch is only a standby switch and is not a LINE switch Alternatively an externally installed switch or circuit breaker which is readily identifiable and is easily reach...

Страница 20: ...instrument from all voltage sources before being opened Locking the Test Set to the PNA L 1 The kit U3021 60001 includes items to interface the Test Set to the analyzer 2 Remove the feet from the bot...

Страница 21: ...s were removed Figure 8 Install Locking Feet 5 Remove the top two standoffs and screws 0515 1619 from the rear panel on the Test Set 6 Install the top left and right rear locking feet from the kit 506...

Страница 22: ...the screws securing the feet to the instrument slightly to align and tighten Figure 10 Locking the Analyzer to the Test Set Figure 11 Locking Feet Screws NOTE The lock feet kit U3021 60001 includes t...

Страница 23: ...A L to the Test Set Torque each cable to 8 in lb The Z5623 20418 are the short cables and the Z5623 20419 are the long cables Refer to Table 8 and Figure 12 CAUTION Each end of the interconnect RF cab...

Страница 24: ...RF Interface Connections 3 Connect the 25 pin D Sub parallel cable N4011 21002 from the PNA L Test Set I O to the Test Set I O interface connector on the rear panel of the Test Set Refer to Figure 19...

Страница 25: ...strument from all voltage sources before being opened Locking and Test Set to the PNA or PNA X 1 The kit U3021 60002 includes items to interface the Test Set to the analyzer 2 Remove the feet from the...

Страница 26: ...tandoffs and screws 0515 1619 from the rear panel on the Test Set 6 Install the two rear locking feet onto the Test Set Looking at the front panel the N5242 20138 is the right foot and the N5242 20139...

Страница 27: ...osen the screws securing the feet to the instrument slightly to align and tighten Figure 16 Locking the Analyzer s Figure 17 Locking Feet Screws NOTE The lock feet kit U3021 60002 includes the analyze...

Страница 28: ...s to spin or become loose Table 9 PNA or PNA X RF Interface Cable Connection U3021 60047 Numeric Order RF Cables From PNA X To Test Set 1 U3042 20031 Port 1 SOURCE OUT Port 5 SOURCE IN 2 U3042 20032 P...

Страница 29: ...ust be connected in the numeric order listed in Table 9 on page 28 PNA X RF Interface Cable Connections 3 Connect the analyzer Test Set I O cable N4011 21002 to the Test Set Interface connector on the...

Страница 30: ...ted reflection response trace should be displayed that resembles the following plots indicated in the table below If you suspect an RF signal path problem refer to the RF cable diagram and check the i...

Страница 31: ...ariation will be higher than when using an ECal Module due to variation in your Short s performance If response is in question perform Cal Kit Operational Check on page 64 Figure 20 Typical Reflection...

Страница 32: ...SOURCE OUT RCVR B IN CPLR ARM Port 4 3 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Agilent 4 Port PNA NOTE PNA PNA X Port orientation is shown PNA L RF interconnections are the same PNA L CPLR THRU SOURCE...

Страница 33: ...CPLR ARM Port 4 3 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Agilent 4 Port PNA NOTE PNA PNA X Port orientation is shown PNA L RF interconnections are the same PNA L CPLR THRU SOURCE OUT CPLR ARM Port 6...

Страница 34: ...LR ARM Port 4 3 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Agilent 4 Port PNA NOTE PNA PNA X Port orientation is shown PNA L RF interconnections are the same PNA L CPLR THRU SOURCE OUT CPLR ARM Port 6 Po...

Страница 35: ...al source path switch ports 1 5 and 9 Typeface Key Conventions The following key conventions are used throughout this document HARDKEYS are labeled front panel keys SOFTKEYS are indicated on the instr...

Страница 36: ...r s Sweep Setup be configured to Stepped Sweep before calibrating This is slower than the Analog Sweep but is more accurate due to the extra electrical length of the Test Set and test port cables Step...

Страница 37: ...on 551 must be installed for Multiport capability To access the multiport application select Utility System Configure Multiport Capability OR Instrument Setup External hardware Multiport Multiport Con...

Страница 38: ...named Port 2 The External Test Set Control U3042M08 also allows control of the DUT control lines refer to Control Lines on page 58 To change the state from LOW to HIGH select the graphical user interf...

Страница 39: ...U3042AM08 Controlling the Test Set with N5222A B N5230C N5232A B or N5242A B Figure 29 External Test Set U3042M08 Port 9 12 Keysight U3042AM08 User s and Service Guide 39...

Страница 40: ...eiver Port and the second number will be the Source Port Any port can be selected to be the Receiver Source or both as in S11 The front panel R LED indicates the port is the Receiver and the S LED ind...

Страница 41: ...th N5222A B N5230C N5232A B or N5242A B Figure 32 12 Port New Trace Measure S11 S55 Figure 33 12 Port New Trace Measure S88 S1212 measurements s parameter to select other Use the scroll bar Keysight U...

Страница 42: ...ment refer to the Application Note 1373 1 and 1373 2 5988 5634EN and 5988 5635EN at http www keysight com In the search menu type Multiport and Balanced Figure 34 Selecting Balanced Measurements Recei...

Страница 43: ...rnal Hardware RF Path Config and in the drop down menu select Default OK Save this configuration as a User Preset by selecting Save User Preset Save current state as User Preset Do not use the factory...

Страница 44: ...connect the DUT This removes the effect on the measurement of the DUT Failure to do this will create ripple and other measurement errors Refer to ECal User Characterization NOTE If measurement errors...

Страница 45: ...to the ports you are calibrating following the Cal Wizard prompts and click Measure after each connection 5 At the Calibration Completed prompt select Save As User Calset and enter the name desired a...

Страница 46: ...uipment using the GPIB Material Handler I O Test Set I O and Auxiliary I O without needing to create a remote program Refer to Help menu Rear Panel Tour A unique set of control data can be sent for ea...

Страница 47: ...ent Setup Internal Hardware Interface Control in the drop down menu and select Enable Interface Control NOTE The network analyzer comes with the Interface Control application Please review this applic...

Страница 48: ...setting Interface Control is disabled and NO data is sent To send data the individual interfaces must also be enabled Provides control of the Test Set I O Interface on the rear panel of the analyzer U...

Страница 49: ...t trace on the channel begins sweeping The After Sweep Start data is sent after the last trace on the channel sweep is completed Specifies a wait time in milliseconds after all commands to all interfa...

Страница 50: ...xternal test set without needing to create a remote program The user is required to manually input address and data using the Command Processor Console in the PNA Help menu Command Processor settings...

Страница 51: ...U3042AM08 Controlling the Test Set with N5222A B N5230C N5232A B or N5242A B Figure 42 Command Console for B Model Analyzers Keysight U3042AM08 User s and Service Guide 51...

Страница 52: ...ides more PNA X control capability than Method 2 The following example shows two executable commands needed to create an S parameter measurement on your Multiport system This first command creates a n...

Страница 53: ...and Data values Each Address and Data value pair sets the Source or Receiver switch paths For an S parameter measurement two pairs of Address and Data values will be needed Address and Data values are...

Страница 54: ...2 20076 provided with Option 129 is intended to be used with the N46xx series ECal modules The ECal module with Option M0F is recommended 1 Connect the ECal module to the NOISE SOURCE IN on the test s...

Страница 55: ...Port 1 5 or 9 as the noise source path NOTE The test set will not operate in multiport mode Interface or GPIB control is required to set the Noise Source Path NOTE The Noise Source path is active whe...

Страница 56: ...he Source and Port 8 is the Receiver Source Port 5 address 0 data 1 and Receiver Port 8 address 16 data 16 Two separate commands must to be sent you may use the same dialog box Send address 0 and data...

Страница 57: ...4 7 11 64 Ports 2 8 12 2 8 12 Port 2 4 B D CPLR THRU SOURCE OUT RCVR B IN CPLR ARM Port 4 3 CPLR THRU SOURCE OUT RCVR D IN CPLR ARM Agilent 4 Port PNA NOTE PNA PNA X Port orientation is shown PNA L RF...

Страница 58: ...2 to 5 Vdc or an external DC power supply depending on how the connection to the control line is configured When using an external power supply a positive or negative voltage can be used Refer to Figu...

Страница 59: ...r pin 14 5 Line 5 Control Line Output of the voltage from pin 13 or pin 14 6 Line 6 Control Line Output of the voltage from pin 13 or pin 14 7 Line 7 Control Line Output of the voltage from pin 13 or...

Страница 60: ...tes an example of the connection between the DUT and the test set without an external DC power supply Connect pin 12 to pin 13 for 5 V and pin 14 to pin 15 to provide the ground path Connect each DUT...

Страница 61: ...ning On the Test Set using an External Power Supply 1 Turn on the test set 2 Connect the DUT 3 Turn on the external power supply Turning Off the Test Set using an External Power Supply 1 Turn off the...

Страница 62: ...ue is always 112 Table 16 Test Set DUT Control Address and Data Logic Table Address Data Description Line Pin 112 0 ALL DUT Control Lines set to logic high or connected to Pin 13 1 8 112 255 ALL DUT C...

Страница 63: ...and calculate the SUM of their data values Listed are two examples to illustrate this concept To change lines 1 8 to equal logic Low all others logic high 1 Line 1 address 112 and data 1 2 Line 8 add...

Страница 64: ...section provides an equipment list and setup of the analyzer and test set Table 17 Equipment List Description Qty N4691A 3 5 mm ECal Module 10 MHz 26 5 GHz Option 00F or M0F or N4691B 3 5 mm ECal Modu...

Страница 65: ...TE If you suspect that your 12 Port configuration is not operating properly ensure that all front RF jumper interconnect cables are correctly attached Table 18 Reflection Tracking with PNA La a Reflec...

Страница 66: ...5 dB 6 GHz to 10 GHz 2 dB 10 GHz to 15 GHz 3 dB 15 GHz to 20 GHz 4 dB 20 GHz to 26 5 GHz 5 dB Table 21 Option 129 Noise SOURCE IN to Port 1 5 or 9 Frequency Port 10 MHz to 4 GHz 4 dB 4 GHz to 6 GHz 5...

Страница 67: ...s 4 Verify that the analyzer is in Multiport mode See the bottom of the measurement window a If only four S Parameters are listed select Utility System Configure Multiport Capability OR Instrument Set...

Страница 68: ...ue following the Cal Wizard prompts In the Select Calibration Ports and ECal Module dialog box click Clear All then select Port 1 Next Measure 4 Ensure the Cal Kit you are using is indicated on the ri...

Страница 69: ...reen 9 To launch the Cal Set Viewer toolbar Select Response Cal Manage Cals Cal Set Viewer OR Response Cal Cal Sets Cal Kits Cal Set Viewer On Off Figure 52 Calibration Cal Set Viewer 10 From the Cal...

Страница 70: ...PNA L Port 1 12 Figure 55 Reflection Tracking Ports 5 to 12 with PNA or PNA X NOTE Response from 10 MHz to 500 MHz is normal due to the PNA or PNA X Couplers in comparison to the test set bridges The...

Страница 71: ...NA Ports 3 and 4 Connect the two cables together using an adapter 4 Perform a response calibration to normalize and remove the loss created the test cables 5 Move the adapter to Port 1 6 Connect the c...

Страница 72: ...using an adapter 4 Perform a response calibration to normalize and remove the loss created the test cables 5 Remove the adapter 6 Connect the cable from Port 3 to Noise Source Out 7 Connect the cable...

Страница 73: ...check the accuracy of a 1 Port calibration performed with mechanical standards or an ECal module In order to perform this check the test port of the ECal module must connect directly to the test port...

Страница 74: ...tion 1 Perform the System Operational Checks on page 30 2 If the problem still exists perform the RF Switching Failures on page 86 If a power hole or other failure still exists refer to Contacting Key...

Страница 75: ...to do so Replaceable Parts The following replaceable parts are available from Keysight Technologies Find A Part system on the web at http keysight com my fapHomePage Table 22 Available Replacement Par...

Страница 76: ...Port 3 CPLR ARM U3042 20033 Port 3 RCVR C IN U3042 20034 Port 3 CPLR THRU U3042 20036 Port 4 CPLR ARM U3042 20037 Port 4 RCVR D IN U3042 20038 Port 4 SOURCE OUT U3042 20039 Port 4 CPLR THRU U3042 2004...

Страница 77: ...Port PNA NOTE PNA PNA X Port orientation is shown PNA L RF interconnections are the same Bypass or S33 S22 16 0 Bypass or S11 0 0 PNA L Bypass or S44 S33 32 0 Bypass or S22 S44 64 0 CPLR THRU SOURCE...

Страница 78: ...X Port orientation is shown PNA L RF interconnections are the same Bypass or S33 S22 16 0 Bypass or S11 0 0 PNA L Bypass or S44 S33 32 0 Bypass or S22 S44 64 0 CPLR THRU SOURCE OUT CPLR ARM Port 6 Por...

Страница 79: ...s 7 11 LED Frt Pnl PCB5 Ports 6 10 LED Frt Pnl PCB4 Ports 5 9 LED Frt Pnl S21 S30 S31 S41 P11 P20 P21 P30 P31 P41 Front Panel Active 9 10vdc N C Signal Path Name Test Set Port Group Ext Control Bd PCB...

Страница 80: ...installed on top of the test set Controller Board and provides connections to the RF switches This board regulates the DC voltage supply 24 volts and routes logic signals to the switches through harne...

Страница 81: ...Port 3 and the test set Ports 6 and 10 In the state shown in the block diagram switch 20 routes the RF Source back to the PNA Port and unused test set ports 6 and 10 are terminated Switch 30 provides...

Страница 82: ...2 8 and 12 Coupler Arm paths are terminated Test Set Control Board The test set Control board N5261 60006 is a surface mount printed circuit assembly PCA It provides a connection to the power supply...

Страница 83: ...Line voltage checks remove AC power from the instrument a Ensure the proper AC Line voltage is present at the instrument line cord b Remove the AC power cord from the instrument Confirm the instrumen...

Страница 84: ...e power supply label to identify the terminal voltage values e If all of the DC Input LEDs are On and the fan is not working replace fan f Using a DVM confirm that the RF Switch power regulator output...

Страница 85: ...t the control voltage pin connections to the DUT control lines are connected properly Refer to Control Lines on page 58 b Verify that the rear panel DC voltage control adjustment can be set to 5 Vdc R...

Страница 86: ...oaded into the analyzer Refer to Network Analyzer Requirements on page 10 3 Using the I O command values confirm that the correct address and data values are used Refer to Address and Data Values on p...

Страница 87: ...test set PNA PNA L or PNA X Network Analyzer Two RF Flex Cables 3 5 mm male 3 5 mm Adapters female to female Test Set I O Cable Equipment Setup 1 Turn on the test set and the analyzer 2 Preset the an...

Страница 88: ...Source Signal Path Insertion Loss Test Connect the RF Flex cables to the Test Port and Source IN port indicated in Table25 the expected results should be similar to Figure 63 on page 89 Source Signal...

Страница 89: ...vice Information Figure 63 Source IN to Ports 5 12 Path Response Figure 64 RCVR OUT to Ports 5 12 Path Response Figure 65 Source Receiver Bypass Signal Path Response Keysight U3042AM08 User s and Serv...

Страница 90: ...dress Data Path Components 1 RCVR OUT to Ports 5a 0 16 P5 CPLR S11 2 RCVR OUT to Ports 9 0 32 P9 CPLR S11 3 RCVR OUT to Ports 6 16 16 P6 CPLR S21 4 RCVR OUT to Ports 10 16 32 P10 CPLR S21 5 RCVR OUT t...

Страница 91: ...able 27 Connect the RF Flex cables to the Source IN and CPLR THRU port indicated in Table 27 the expected results should be similar to Figure 65 on page 89 Source Bypass Signal Path Test Instructions...

Страница 92: ...View Figure 67 Bottom View Power Supply LEDs 11 10 21 31 DUT Control Bd Switch Interface Bd 41 40 16 20 30 Status LEDs Fuse Assy Power Supply Screw Terminals Fan Couplers x8 40 41 30 31 20 21 10 11 92...

Страница 93: ...h contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited CAUTION Always use the three pron...

Страница 94: ...his product Failure to ensure adequate earth grounding by not using this cord may cause product damage and the risk of electrical shock CAUTION This product is designed for use in Installation Categor...

Страница 95: ...operator serviceable parts inside Refer servicing to qualified personnel To prevent electrical shock do not remove covers WARNING The detachable power cord is the instrument disconnecting device It di...

Страница 96: ...flammable cleaning materials are used the material shall not be stored or left open in the area of the equipment Adequate ventilation shall be assured to prevent the combustion of fumes or vapors 96...

Страница 97: ...opean Community The Keysight email address is required by EU directives applicable to our product The CSA mark is a registered trademark of the CSA International This is a symbol of an Industrial Scie...

Страница 98: ...61010 1 Acoustic Statement European Machinery Directive Accoustical noise emission LpA 70 dB Operator position Normal operation mode Per ISO 7779 Declaration of Conformity To find a current Declarati...

Страница 99: ...resentative can determine the warranty status of your unit Shipping Your Product to Keysight for Service or Repair IMPORTANT Keysight Technologies reserves the right to reformat or replace the interna...

Страница 100: ...This information is subject to change without notice Keysight Technologies 2019 Print Date December 2019 Supersedes November 2016 www keysight com...

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