Keysight Technologies U3042AM04 User's And Service Manual
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Keysight Technologies U3042AM04 User's And Service Manual

Keysight Technologies U3042AM04 User's And Service Manual

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Keysight Technologies
U3042AM04
Notice: This document contains references to
Agilent. Please note that Agilent's Test and
Measurement business has become Keysight
Technologies. For more information, go to
www.keysight.com.
Use this manual with the following document:
PNA Series Network Analyzer On-line Help
System
User's and
Service Guide

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  • Page 1 Keysight Technologies U3042AM04 Notice: This document contains references to Agilent. Please note that Agilent’s Test and Measurement business has become Keysight Technologies. For more information, go to www.keysight.com. Use this manual with the following document: PNA Series Network Analyzer On-line Help System User’s and...
  • Page 2 EULA. Keysight from Keysight Technologies, Inc. as with the terms of such license. shall be under no obligation to governed by United States and U.S.

  • Page 3: Table Of Contents

    Table of Contents U3042AM04 Introduction ...............1 Description.
  • Page 4 Table of Contents Multiport Mode (Option 551) ........... 26 How to Access Multiport Mode .
  • Page 5 Table of Contents System Block Diagram ............58 Theory of Operation .
  • Page 6 Table of Contents Contacting Keysight ............79 Shipping Your Product to Keysight for Service or Repair .
  • Page 7 U3042AM04 U3042AM04 User’s and Service Guide...

  • Page 8: Introduction

    U3042AM04 Introduction Introd uction This document describes how to use and service the U3042AM04 Multiport Test Set. Figure 1 4-Po rt PNA- L with U3042AM04 Figure 2 4-Port PNA or PNA-X with U3042AM04 Keysight U3042AM04 User's and Service Guide...

  • Page 9: Description

    Network Analyzers will be referred to throughout this document as the PNA, PNA-L and PNA-X. Analyzer refers to all series of PNA. PNA-L and PNA-X. The U3042AM04 will be referred to as the Test Set. The N5221, N5231, and N5241 can be used, but will limit the frequency range to 13.5 GHz.

  • Page 10: Network Analyzer Requirements

    Insure the network analyzer has the latest version of firmware installed. The following web site links will provide the necessary information needed: • Network Analyzer Firmware - http://na.support.keysight.com/pna/firmware/firmware.html • U3042AM04 Test Set Files - http://na.support.keysight.com/multiport (see test set files link) Keysight U3042AM04 User's and Service Guide...

  • Page 11: Available Options

    These part numbers are for the previous Agilent Palette 2000 color format. Network Analyzer Interface Kit Options The U3042AM04 will require one of the following kits to interface the test set with your network analyzer. The Interface kit model option includes the hard ware...

  • Page 12: General Specifications

    AC line that powers the Test Set and analyzer. • U3042AM04 maximum power is 350 W. This is a Safety Class I Prod uct (provided with a protective earthing ground incorporated in the power cord). The mains plug shall be only be inserted in a socket outlet provided with a protective earth contact.

  • Page 13: Environmental Requirements

    U3042AM04 General Specifications Environmental Requirements Refer to the PNA, PNA-L and PNA-X standard documentation for environmental specifications. The U3042AM04 complies with all applicable safety and regulatory requirements for the intended location of use. • Pressure Altitude (Operation) 3,000 meters (~10,000 feet) •...

  • Page 14: Maximum And Recommended Power Levels

    (+30 dBm). The power levels must be 3 dB below maximum level to ensure no damage. Do not apply any DC voltage to the Access or Test Ports. Table 5 Recommended Power Levels U3042AM04 Test Port RF Power Levels: PORT 5-8 +27 dBm U3042AM04 Access Ports:...

  • Page 15: Typical Reflection Tracking

    Performance for the test set is typical. System performance for the analyzer and Test Set are only characteristic and are intended as non-warranted information. A functional certificate is provided for the U3042AM04 only. Typical performance is based on 1 to 2 units. See...

  • Page 16: Front And Rear Panel Features

    When the Test Set is connected and addressed by a analyzer, the LED is On (illuminated). The LED is Off (not illuminated) when the Test Set is in Standby, or not addressed by the analyzer. Keysight U3042AM04 User's and Service Guide...
  • Page 17 The Pass Through Interface is used to connection to another Test Set. Interface Test Set Interface The Test Set Interface connector is used to send address and data to the Test Set from the analyzer. Keysight U3042AM04 User's and Service Guide...
  • Page 18 For continued protection against fire hazard replace line fuse only with same type and rating. The use of other fuses or material is prohibited. Figure 5 Line Fuse Verify that the premise electrical voltage supply is within the range specified on the instrument. Keysight U3042AM04 User's and Service Guide...

  • Page 19: System Setup With N5230C And N5232A

    2. Remove the feet from the bottom of the analyzer. 3. Remove the 2 lower standoffs and screws (0515-1619) from the rear panel on the analyzer. Figure 6 Rear Bottom Feet Standoffs (x2) Feet (x4) Keysight U3042AM04 User's and Service Guide...
  • Page 20 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 (5063-9253) using screws (0515-1244). Figure 8 Rear Locking Feet Keysight U3042AM04 User's and Service Guide...
  • Page 21 The lock-feet kit (U3021-60001) includes the analyzer and Test Set lock-feet. Refer “Contacting Keysight” on page 79 for ordering information. • PNA - 5023-0132 (Kit includes locking feet and screws) • Test Set - 5063-9253 (Kit includes lock links, locking feet and screws) Keysight U3042AM04 User's and Service Guide...

  • Page 22: Pna-L Rf Interface Cable Connections

    PNA-L Interface Cable Connection (U3021-60045) RF Cables From PNA-L To Test Set Z5623-20418 (short) SOURCE OUT SOURCE OUT Z5623-20418 (short) CPLR ARM CPLR ARM Z5623-20419 (long) CPLR THRU CPLR THRU Z5623-20419 (long) RCVR IN RCVR OUT Keysight U3042AM04 User's and Service Guide...
  • Page 23 I/O to the Test Set I/O interface connector on the rear panel of the Test Set. Refer Figure 18 on page Refer to “System Operational Checks” on page 22 for turn-on verification of the multiport system. Keysight U3042AM04 User's and Service Guide...

  • Page 24: System Setup With N5222A And N5242A

    2. Remove the feet from the bottom of the analyzer. 3. Remove the 2 lower standoffs and screws (0515-1619) from the rear panel on the analyzer. Figure 12 Rear Bottom Feet Standoffs (x2) Feet (x4) Keysight U3042AM04 User's and Service Guide...
  • Page 25 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 is the left foot. Two screws (0515-2317) are included with this option. Figure 14 Install Locking Feet on Test Set N5242-20139 N5242-20138 Keysight U3042AM04 User's and Service Guide...
  • Page 26 The lock-feet kit (U3021-60002) includes the analyzer and Test Set lock-feet. Refer “Contacting Keysight” on page 79 for ordering information. • PNA - 5023-0132 (Kit includes locking feel and screws) • Test Set - N5242-20138 (right foot) and N5242-20139 (left foot). • Screw - 0515-2317 Keysight U3042AM04 User's and Service Guide...

  • Page 27: N5222A Or N5242A Rf Interface Cable Connections

    Port 2 CPLR ARM Port 8 CPLR ARM U3042-20044 Port 2 CPLR THRU Port 8 CPLR THRU U3042-20043 Port 2 SOURCE OUT Port 8 SOURCE IN Port 8 RCVR OUT U3042-20042 Port 2 RCVR B IN Keysight U3042AM04 User's and Service Guide...
  • Page 28 37 39 41 43 34 36 38 40 3. Connect the analyzer Test Set I/O cable (N4011-21002) to the Test Set Interface connector on the rear panel. Figure 18 Test Set I/O Cable Connection N4011-21002 Keysight U3042AM04 User's and Service Guide...

  • Page 29: System Operational Checks

    Reflection Port Response Trace Cable Path Diagram Port 1 to 4 Figure 19 on page 23 Figure 20 on page 23 Ports 5 to 8 Figure 21 on page 24 Figure 22 on page 24 Keysight U3042AM04 User's and Service Guide...
  • Page 30 Port 1 Port 3 (2) Port 4 (3) Port 2 (4) S22 (S44) S33 (S22) S44 (S33) U3042AM04 RF Diagram RCVR SIGNAL Mechanical Switches SOURCE SIGNAL Port 5 Port 6 Port 7 Port 8 Keysight U3042AM04 User's and Service Guide...
  • Page 31 PNA & PNA-X Port orientation is shown. PNA-L RF interconnections are the same. ( PNA-L ) Port 1 Port 3 (2) Port 4 (3) Port 2 (4) U3042AM04 RF Diagram RCVR SIGNAL Mechanical Switches SOURCE SIGNAL Port 5 Port 6 Port 7 Port 8 Keysight U3042AM04 User's and Service Guide...

  • Page 32: Controlling The Test Set With N5222/32/42A/B

    Test Set and test port cables. Stepped Sweep is available on all models. 1. On the analyzer select STIMULUS > Sweep > Sweep Setup. 2. Select Stepped Sweep-sweep moves in discrete steps. 3. Set the Dwell Time to 5 ms > OK. Figure 23 Sweep Setup Keysight U3042AM04 User's and Service Guide...

  • Page 33: Multiport Mode (Option 551)

    If the U3042AM04 is not available in the drop-down list, it will be necessary for you to copy the required test set file to the analyzer's hard drive. The current version of the test set files are available on the web at http://na.support.keysight.com/...

  • Page 34: External Test Set Control Feature

    Trace/Chan > Channel > Hard ware Setup > External Test Set > Other -OR- (Instrument > Setup > External hardware > External Device... > Multiport > Other Test Set Setup...). The test set will be displayed as External Test Set Control-U3042AM04. Figure 25...

  • Page 35: Trace Measure S-Parameter

    Multiple S-Parameters can be made from selecting Trace/Chan > Trace > New Trace -OR- (Instrument > Trace > New Trace). Use the drop-down menu and select any of the 64 S-Parameters. Figure 27 New Trace Measure Keysight U3042AM04 User's and Service Guide...
  • Page 36 Figure 28 Selecting Balanced Measurements Receivers Tab The S-Parameter measurements can be ratioed with selectable Denominators for each port and receiver. Refer to the standard documentation for more information. Figure 29 Receiver Measurements Keysight U3042AM04 User's and Service Guide...

  • Page 37: Rf Path Configuration With Analyzer Option 029

    Utilities System> Configure > Preferences -OR- (Utility > System > System Setup > Preferences > User Preset). If not, select Meas: Port 1 Noise Tuner Switch is set to external. Figure 30 RF Path Configuration Keysight U3042AM04 User's and Service Guide...

  • Page 38: N-Port Calibration

    Response > Cal Wizard > Characterize ECal Module -OR- (Response > Cal > Other Cals > ECal...) and follow the prompts. 2. Save the ECal characterization file. Refer to the Help menu for characterizing information. Figure 31 ECal Characterization and Calibration Wizard Keysight U3042AM04 User's and Service Guide...
  • Page 39 If measurement errors occur, ensure the newest version of firmware is installed on the analyzer. Measurement errors can be a result of firmware algorithms. Consult with Keysight Service or firmware web page for the latest firmware revisions and history at http://na.support.keysight.com/pna/firmware/firmware.html. Keysight U3042AM04 User's and Service Guide...

  • Page 40: Interface Control

    Control data can only be WRITTEN to the interfaces, NOT READ from the interfaces. • Control data is sent in the following order and this order cannot be changed: 1. GPIB Interface 2. Material Handler Interface 3. Test Set Interface 4. Dwell Time Keysight U3042AM04 User's and Service Guide...

  • Page 41: How To Access Interface Control Settings

    The network analyzer comes with the Interface Control application. Please review this application before connecting the test set to the analyzer. Information regarding this application can be found in the analyzer’s Help menu, Interface Control. Figure 33 Interface Control Access Keysight U3042AM04 User's and Service Guide...

  • Page 42: Using Interface Control Mode

    The quantity of Test Set I/O entries that can be entered is limited by the available memory of the analyzer. Address and Data example: addr.data (3) 16.1 32.2 Keysight U3042AM04 User's and Service Guide...
  • Page 43 Word Pad. Applies the settings and closes the dialog box. Cancel: Does not apply changes that were made and closes the dialog box. Help: Provides additional information for using the interface control application. Keysight U3042AM04 User's and Service Guide...

  • Page 44: Scpi Control

    Utility > System > Configure > SICL/GPIB/SCPI -OR- (System Setup > Remote Interface > SCPI Monitor Input > Show SCPI Parser Console) 2. Check the SCPI Command Processor Console box. Command Console for 'A' Model Analyzers Figure 35 Keysight U3042AM04 User's and Service Guide...
  • Page 45 U3042AM04 Controlling the Test Set with N5222/32/42A/B Figure 36 Command Console for 'B' Model Analyzers Keysight U3042AM04 User's and Service Guide...

  • Page 46: Scpi Command Processor Console

    Address and data are separated by a comma. Commands should be separated by a new line, or carriage return. For Example: CONT:EXT:TEST:DATA <address>,<data> CONT:EXT:TEST:DATA 0,0 Example: CONT:EXT:TEST:DATA 0,0 Figure 37 SCPI Command Window Refer to “Address and Data Values” on page Keysight U3042AM04 User's and Service Guide...

  • Page 47: Address And Data Values

    PNA-L PNA or PNA or Source Receiver PNA-X PNA-X Address Path Path Source Receiver Path Path Data Ports Ports Ports Ports Refer to “System Block Diagram” on page 58 for in-depth RF path information. Keysight U3042AM04 User's and Service Guide...
  • Page 48 PNA & PNA-X Port orientation is shown. PNA-L RF interconnections are the same. ( PNA-L ) Port 4 (3) Port 2 (4) 32.1 64.16 RCVR SIGNAL SOURCE SIGNAL Port 7 Port 8 Receiver Port Source Port Keysight U3042AM04 User's and Service Guide...

  • Page 49: Control Lines

    100 mA (each line) Control Line DC resistance < 10 Ω (each line) Voltage Range: Positive Input 0 to +5 V Negative Input –5 to 0 V Internal Variable Voltage +2 to +5 V Keysight U3042AM04 User's and Service Guide...
  • Page 50 Internal voltage output, adjusted with the trimmer on the +2 V to +5 V rear panel. Positive Input Connection for internal (pin 12) or external positive voltage supply. Negative Input Connection for ground (pin 15) or external negative voltage supply. ground terminal Keysight U3042AM04 User's and Service Guide...

  • Page 51: Internal Voltage Supply Configuration

    You may only connect pin 12–13, and pin 14–15. Damage may result if any other path is short-circuited. Figure 40 Internal DC Power Configuration (rear panel view) Line 1 Line 2 (Rear Panel View) TO DUT (Only required Lines) Line 8 2 to 5 Vdc TEST SET Keysight U3042AM04 User's and Service Guide...

  • Page 52: External Voltage Supply Configuration

    Line 1 Line 2 (Rear Panel View) TO DUT (Only required Lines) DC Power Supply Line 8 + Gnd 2 to 5 Vdc Positive: 0 to 5 Vdc Negative: 5 to 0 Vdc TEST SET Keysight U3042AM04 User's and Service Guide...

  • Page 53: Setting The Control Lines With Address And Data Values

    DUT Control Line 6 set to logic low or connected to Pin 14 DUT Control Line 7 set to logic low or connected to Pin 14 DUT Control Line 8 set to logic low or connected to Pin 14 Keysight U3042AM04 User's and Service Guide...
  • Page 54 3. The SUM of the <data> values = 6 4. Front panel PNA Interface Control Mode line entry = 112.6 > OK. Since all control lines have the same <address>, only one "<address>.<data>" command line is needed to control all 8 lines. Keysight U3042AM04 User's and Service Guide...

  • Page 55: Cal Kit Operational Check

    N5222A, N5232A or N5242A Option 400 and 551 Set of interconnect cables (PNA and test set), see “PNA-L RF Interface Cable Connections” on page 15 “N5222A or N5242A RF Interface Cable Connections” on page Keysight U3042AM04 User's and Service Guide...

  • Page 56: Verification Limits

    Only a functional certificate is provided for the U3042AM04. It is recommended that you return your instrument to Keysight Technologies for servicing or repair if the test set and analyzer performance exceed the operational verification limits.

  • Page 57: Cal Kit Operational Check Procedure

    Utility > System > Configure > Multiport Capability -OR- (Instrument > Setup > External Hardware > Multiport > Multiport Configuration...). Select Restart as multiport PNA with this testset and select U3042AM04 (8-Port) from the drop-down menu > OK. Refer to Figure 24 on page 5.

  • Page 58: 1-Port Calibration And Verification Procedure

    If you do not have a keyboard, select Save As User Calset > Ed it Name and save as 999.x. X is the port number you are calibrating. Use the numeric keypad on the analyzer front panel to enter “999.1.” Figure 43 Calibration Complete Keysight U3042AM04 User's and Service Guide...
  • Page 59 Limit Test). The trace should be above the limit. PASS will be displayed on the screen if the limit lines are used. 12. Repeat step 10 step 11 for Cal Sets "999.1" thru "999.8" (8-Port). Keysight U3042AM04 User's and Service Guide...
  • Page 60 Reflection Tracking (Ports 5 to 8) with PNA or PNA-X 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 bridges have more gain in the coupled RF path. Keysight U3042AM04 User's and Service Guide...

  • Page 61: Verifying Cal Kit Operational Check Failure

    5. Click Change Measurement and select the test port S-parameter > Apply > OK. Click Read Mod ule Data. 6. Select the ECal Module you are using and select the ECal Mod ule Memory > Factory > OK. Figure 47 ECal Confidence Check Keysight U3042AM04 User's and Service Guide...

  • Page 62: Interconnect Cable Verification

    1. Perform the “System Operational Checks” on page 2. If the problem still exists, perform the “RF Switching Failures” on page If a power hole or other failure still exists, refer to “Contacting Keysight” on page Keysight U3042AM04 User's and Service Guide...

  • Page 63: Service Information

    These servicing instructions are for use by qualified personnel only. To avoid electrical shock, do not perform any servicing unless you are qualified to do so. Replaceable Parts The following replaceable parts are available from Keysight Technologies “Find-A-Part” system on the web at http://www.keysight.com/my/faces/fapHomePage.jspx. Table 18...
  • Page 64 User’s Guide (Option M04) U3042-90013 Dress Nut (coupler/bridge) N5230-20081 PNA-X Test Set Rear Lock Feet (right) N5242-20138 PNA-X Test Set Rear Lock Feet (left) N5242-20139 10 LED Board N5261-60005 Test Set Control Board (programmed) N5261-60006 Keysight U3042AM04 User's and Service Guide...

  • Page 65: System Block Diagram

    SOURCE OUT CPLR ARM RCVR A IN CPLR THRU SOURCE OUT CPLR ARM RCVR C IN CPLR THRU SOURCE OUT CPLR ARM RCVR D IN CPLR THRU SOURCE OUT CPLR ARM RCVR B IN Keysight U3042AM04 User's and Service Guide...
  • Page 66 U3042AM04 Service Information Figure 49 Electrical Block Diagram Keysight U3042AM04 User's and Service Guide...

  • Page 67: Theory Of Operation

    The test set uses 4 couplers (5087-7752) on the front panel for RF Test Ports 5 to 8. The couplers provide the signal separation of the source and receiver paths. The test set ports can receive from or stimulate a signal to the DUT. Keysight U3042AM04 User's and Service Guide...

  • Page 68: Rf Switch Components

    I/O for control of the RF switch paths through the Switch Interface board (U3025-60062). The front panel “Active” and port LEDs are on only when the PNA has addressed the test set. The rear panel fan is on when the controller board supplies are operational. Keysight U3042AM04 User's and Service Guide...

  • Page 69: Troubleshooting The Test Set

    The Active LED will be On when test set is connected to an active the analyzer and is addressed by the analyzer. c. Verify that the DC LEDs indicators are On. Keysight U3042AM04 User's and Service Guide...
  • Page 70 The +9 and -10 Vdc indicators are not used in this instrument (Off is normal). Figure 50 DC Power Status LEDs 4. Front Panel R and S indicator LED Check. a. If the indicators are not operating, continue to “RF Switching Failures” step 1 step Keysight U3042AM04 User's and Service Guide...
  • Page 71 Verify that the control voltage pin connections to the DUT control lines are connected properly. Refer to “Control Lines” on page b. Verify that the rear panel DC voltage control adjustment can be set to 5 Vdc. Refer to Figure 4 on page Keysight U3042AM04 User's and Service Guide...

  • Page 72: Rf Switching Failures

    Off, replace the Controller Board. b. 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 U3042AM04 User's and Service Guide...

  • Page 73: Test Set And Rf Switching Path Test

    The <addrs>.<data> entries noted in the following Test Instructions table will be used to configure the RF switches for this testing. After making your entry, select <OK> to execute the command, to return back for further entries, select Interface Control on the analyzer’s display. Keysight U3042AM04 User's and Service Guide...

  • Page 74: Cable Connections

    P7 CPLR, S30 Figure 51 on page 68 Figure 51 on page 68 Source IN to Port 8 64.1 P8 CPLR, S40 1. Use the Source IN port associated with this group of test ports. Keysight U3042AM04 User's and Service Guide...
  • Page 75 U3042AM04 Service Information Figure 51 Source IN to Ports 5-8 Path Response Figure 52 RCVR OUT to Ports 5-8 Path Response Figure 53 Source & Receiver Bypass Signal Path Response Keysight U3042AM04 User's and Service Guide...
  • Page 76 RCVR OUT to Ports 7 32.16 P7 CPLR, S31 Figure 52 on page 68 RCVR OUT to Ports 8 64.16 P8 CPLR, S41 1. Use the RCVR OUT port associated with this group of test ports. Keysight U3042AM04 User's and Service Guide...

  • Page 77: Rf Performance Fails

    Port 8 RCVR OUT to CPLR ARM 64.0 RF Performance Fails If the U3042AM04 operates correctly, but RF performance fails the Signal Path test, refer to the “U3042AM04 Block Diagram” on page 58 to determine the components that will need to be inspected further. The following procedures can be used to isolate the failed component.

  • Page 78: Troubleshooting Diagrams And Tables

    Switch Interface Board Switch Interface Board Connection Switch Interface Board Connection Ports 5 (Source) Ports 5 (Receiver) Ports 6 (Source) Ports 6 (Receiver) Ports 7 (Source) Ports 7 (Receiver) Ports 8 (Source) Ports 8 (Receiver) Keysight U3042AM04 User's and Service Guide...
  • Page 79 U3042AM04 Service Information Figure 54 Top View DUT Control Bd. Controller Board Power Supply LEDs Switch Interface Bd . Figure 55 Bottom View Couplers (x4) Coax Switch (x8) Fuse (x2) Power Line Module Supply Keysight U3042AM04 User's and Service Guide...

  • Page 80: Safety And Regulatory Information

    Declaration of Conformity A copy of the Declaration of Conformity is available upon request, or a copy is available on the Keysight Technologies web site at http://regulations.keysight.com/DoC.htm. Statement of Compliance This product has been designed and tested in accordance with accepted industry standards, and has been supplied in a safe condition.

  • Page 81: Before Applying Power

    (outside the cabinet) must be less than the maximum operating 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. Keysight U3042AM04 User's and Service Guide...

  • Page 82: Connector Care And Cleaning Precautions

    Allow all residual alcohol moisture to evaporate, and fumes to dissipate prior to energizing the instrument. To prevent electrical shock, d isconnect the Keysight U3042AM04 from the mains electrical supply before cleaning. Use a dry cloth or one slightly dampened with water to clean the external case parts.
  • Page 83 If 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. Keysight U3042AM04 User's and Service Guide...

  • Page 84: Instrument Markings

    Forty years is the expected useful life of the product. This symbol on all primary and secondary packaging indicates compliance to China standard GB 18455-2001. South Korean Certification (KC) mark; includes the marking's identifier code which follows the format: MSIP-REM-YYY-ZZZZZZZZZZZZZZ. Keysight U3042AM04 User's and Service Guide...

  • Page 85: Battery Collection

    A 급 기기 ( 업무용 방송통신기자재 ) 이 기기는 업무용 (A 급 ) 전자파적합기기로서 판 매자 또는 사용자는 이 점을 주 의하시기 바라 며 , 가정외의 지역에서 사용하는 것을 목적으 로 합니다 . Keysight U3042AM04 User's and Service Guide...

  • Page 86: Keysight Support, Services, And Assistance

    Keysight for repair. If you wish to send your instrument to Keysight Technologies for service or repair: • Include a complete description of the service requested or of the failure and a description of any failed test and any error message.
  • Page 87 Keysight U3042AM04 User's and Service Guide...
  • Page 88 This information is subject to change without notice. © Keysight Technologies 2013, 2018 Edition 1, February 2018 Supersedes: April 2017 www.keysight.com...

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