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Service Information

2-

Test Set Diagrams and Graphics

Figure 2-1 

N5261A Test Set Diagram

Test Set 

Control Bd.

PCB 1

Keysigh

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mm-wave Test Set Controller

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Keysight N5261/62A User’s & Service Guide  

 

51

Содержание N5261A

Страница 1: ...User s and Service Guide Keysight Technologies N5261A and N5262A Millimeter Head Controller...

Страница 2: ...ftware 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...

Страница 3: ...s 13 PNA X Based Configurations 14 System Accessory Information 16 N5261A Interface Kits 16 N5262A Interface Kits 17 Test Set to the Module Cable Sets 19 Compatible mm wave Modules 20 Available OML Mo...

Страница 4: ...ve and Port Status LED 65 Troubleshooting RF Level 67 RF Out Failures 67 LO Out Failure 67 REF IF or Test IF Failure 68 Test Set Operation Check 68 Preparation 68 Required Equipment 68 Power Sensor an...

Страница 5: ...pplying Power 86 Connector Care and Cleaning Precautions 87 Regulatory Information 89 Instrument Markings 89 Battery Collection 90 Electrical Safety Compliance 90 EMI and EMC Compliance 90 Electrical...

Страница 6: ......

Страница 7: ...Keysight N5261 62A User s Service Guide 1 Installation System Operation...

Страница 8: ...Introduction This section of this document describes system installation and operation of the N5261A N5262A Millimeter Module Controller Figure 1 1 2 Port Banded Millimeter wave Configuration N5261A F...

Страница 9: ...s document the N5261A and N5262A will be referred to as the test set This manual should be used in conjunction with the following documents PNA X Series Network Analyzer On line Help System Millimeter...

Страница 10: ...1002 W7 Multi Cond Flex CA AY DSub25 m m 520mm 20in Rear Panel Connections 1 9230 0333 Envelope Calibration Certificate 1 9320 6636 Functional Certificate 1 N5262 90001 User s and Service Guide 1 N525...

Страница 11: ...ty of 80 for temperatures to 31 degrees C decreasing linearly to 50 relative humidity at 40 degrees C Ventilation Requirements When installing the instrument in a cabinet the convection into and out o...

Страница 12: ...4 See Figure 2 15 on page 74 10 11 5 14 5 14 5 dB 8 to 19 GHz N5262A TEST or REF IF Input characteristic 27 10 7 6 MHz Test IF to A B C D IF OUTPUTS specification See Figure 2 17 on page 77 2 dB 1 7 6...

Страница 13: ...61A 2 Port Front Panel Features Figure 1 4 N5262A 4 Port Front Panel Features LO Out SRC1 Input Port Status LEDs RF Out Ref IF Test IF Standby Switch Over Current LEDs DC Power Active LED Active LED S...

Страница 14: ...is active All receivers are active in normal operation DC Power Bias This bias supplies the 12 Vdc and ground lines for OML millimeter wave modules Pins 1 and 3 are both 12 Vdc supplies Pins 4 and 6 a...

Страница 15: ...Features Figure 1 5 N5261A Rear Panel Features Figure 1 6 N5262A Rear Panel Features Line Module Test Set I O Pass Thru Interface Chassis Ground IF Outputs D C B A LO IN SRC1 IN OUT R IF Outputs LO IN...

Страница 16: ...IN and SRC 2 RF OUT Not installed in the N5261A Rear panel RF Input access for use with the analyzer s Option 224 or 423 SRC 2 provides the power input for RF OUT Ports 3 4 Chassis Ground A threaded...

Страница 17: ...lectrical supply and receptacle configurations Please refer to our website at http www keysight com for assistance in power cord selection Available Fuses Fuse F 5 A 250V 2110 0709 UL listed and CSA c...

Страница 18: ...the PNA Option s column of Table 1 4 The required options for PNA X models are indicated in the PNA Option s column of Table 1 5 Note that all models require Option 020 The minimum firmware revision...

Страница 19: ...A front n N5262A 112 B V C1 C2__C4 __ 4 400 401 or 419 N5261A front n N5261A 114 A Z C1 C2 C3 C4__ N5262A front n N5262A 114 B X C1 C2 C3 C4 C5 N5227A B 200 201 or 219 N5261A front n N5261A 112 A Y C1...

Страница 20: ...ont n N5262A 104 B X C1 C2 C3 C4 C5 400 423 N5261A front n N5261A 104 A Z C1 C2 C3 C4__ rear y N5261A 104 C C1 C2 C3 C4 __ N5262A front n N5262A 104 B X C1 C2 C3 C4 C5 rear y N5262A 104 D C1 C2 C3 C4...

Страница 21: ...261A 104 E C1 C2 C3 C4 __ 6 N5262A front n N5262A 114 B X C1 C2 C3 C4 C5 rear y N5262A 104 F C1 C2 C3 C4 C5 8 4 Can only drive output on one port at a time in this configuration 5 Must use RF OUT on t...

Страница 22: ...SRC1 to Port 1 PNA 1 U3021 60002 Lock Link Kit Test Set to PNA 1 N5261A Option 106 Interface Kit for the 2 Port PNA N5224 25 44 45A B 5061 9038 Coax Flex CA Assy SMA m m 520 mm 20 in rear panel connec...

Страница 23: ...1 N5262 20017 W3 Coax Rigid CA Assy SMA male to female SRC2 to PNA SRC2 Out1 1 N5262 20020 W2 Coax Rigid CA Assy SMA male to female SRC2 to Port 2 PNA 1 U3021 60002 Lock Link Kit Test Set to PNA 1 N5...

Страница 24: ...Kit for the 2 Port N5227 47A B 5061 9038 Coax Flex CA Assy SMA m m 520 mm 20 in rear panel connections 7 N5262 20023 W1 Coax Rigid CA Assy SMA male to 2 4 mm female SRC1 to Port 1 PNA 1 N5262 20024 Co...

Страница 25: ...070 Coax flex CA Assy right angle SMA m m 2 m 79 in Ref Test IF 2 N5260 60025 Multi Cond Flex CA Assy Cir 7C 2 m 79 in DC Power Bias 1 N5261 60020 Cable Sleeve and Marker Kit 5 m 197 in 1 N5261 62A Op...

Страница 26: ...er wave modules contain a test downconverter to receive the test signal from a Transmission Reflection millimeter wave module The use of a Receiver module as the second module allows the system capabi...

Страница 27: ...N5256 90001 Table 1 10 Available VDI Modules1 2 Banded Freq Ranges GHz Port Type Source Receiver Model Notes 750 to 1100 Waveguide N5262AW01 TST T R Module 500 to 750 Waveguide N5256AW01 TST T R Modu...

Страница 28: ...so use a power meter A separate DC supply is recommended for OML modules if they are greater than 5 meters from the controller A DC bias power cable with banana plug connectors is available for use wi...

Страница 29: ...r parts of the instrument The front panel switch is only a standby switch and is not a LINE switch Protect Against Electrostatic Discharge ESD IMPORTANT If not properly protected electrostatic dischar...

Страница 30: ...nsport the instrument Mounting a Network Analyzer on the Test Set Refer to the following kits for your specific analyzer In this procedure a N5242A B 4 Port PNA X is used with a N5262A There are other...

Страница 31: ...moved Figure 1 11 Install Locking Feet on Network Analyzer 4 Remove the top two standoffs from the rear panel on the test set 5 Install the two rear locking feet from the kit U3021 60002 onto the test...

Страница 32: ...26 Keysight N5261 62A User s Service Guide Installation System Operation 1 Figure 1 12 Rear Locking Feet N5222A B or N5242A B N5242 20138 N5242 20139 0515 2317 x2...

Страница 33: ...r s lower locking feet to the test set s upper locking feet using the spring loaded screws on the locking feet Refer to Figure 1 14 on page 28 If the locking feet are not aligned with the screw holes...

Страница 34: ...28 Keysight N5261 62A User s Service Guide Installation System Operation 1 Figure 1 14 Locking Feet Screws Locking Screw Locking Screw N4011 21002...

Страница 35: ...tions are documented in Figure 1 15 through Figure 1 20 Refer to Table 1 4 on page 13 and Table 1 5 on page 14 to determine which figure applies to your configuration Figure 1 15 N5261A Rear Panel Con...

Страница 36: ...N5261 62A User s Service Guide Installation System Operation 1 Figure 1 16 N5262A Rear Panel Configuration B From PNA PNA X D R2 C R1 R Test Set I O LO OUT J5 B A To N5262A Controller D C R Test Set I...

Страница 37: ...n Figure 1 17 N5261A Rear Panel Configuration C From PNA PNA X D R2 C R1 Test Set I O LO OUT J5 B A SW SRC1 OUT J11 1 Install the adapter N4903 61250 on the N5224 25A B or N5244 45A B SW SRC OUT J11 T...

Страница 38: ...Panel Configuration D From PNA PNA X D R2 C R1 R Test Set I O LO OUT J5 B SW SRC1 OUT J8 A SW SRC1 OUT J11 1 Install the adapters N4903 61250 on the N5224 25A B or N5244 45A B SW SRC OUT J8 and J11 T...

Страница 39: ...rvice Guide 33 Installation System Operation Figure 1 19 N5261A Rear Panel Configuration E From PNA PNA X D R2 C R1 Test Set I O LO OUT J5 B A RF 1 OUT J6 To N5261A Controller D C Test Set I O LO IN B...

Страница 40: ...ation System Operation 1 Figure 1 20 N5262A Rear Panel Configuration F From PNA PNA X D R2 C R1 R Test Set I O LO OUT J5 RF 2 OUT J12 B RF 1 OUT J6 A To N5262A Controller D C R Test Set I O LO IN SRC...

Страница 41: ...o Table 1 4 on page 13 and Table 1 5 on page 14 to determine if these connections are necessary for your configuration Figure 1 21 and Figure 1 22 provide the connection diagrams Figure 1 21 N5261A Fr...

Страница 42: ...F cables for each T R module Cables provided with the VDI modules are pre labeled The cables for use with the OML modules come in two types two lighter and two heavier Use the lighter cables for the I...

Страница 43: ...s 1 through 5 of the Installation Guide from the Millimeter wave Cable Dress Kit document number N5260 90070 contained in kit part number N5261 60019 DO NOT APPLY THE VELCRO ASSEMBLIES AT THIS TIME 2...

Страница 44: ...r the remaining modules 7 Apply Velcro assemblies to the ends of the cable sleeves a Complete steps 6 7 and 8 of the Installation Guide from the Millimeter wave Cable Dress Kit document number N5260 9...

Страница 45: ...the test set Before turning on this instrument verify that the AC supply voltage is in the specified range Typeface Key Conventions The following key conventions are used throughout this document HAR...

Страница 46: ...ystem Configure Millimeter Module 3 Select the test set you are using from the drop down menu N5261A or N5262A 4 Click the New command button 5 In the Selected Configuration dialog box enter a title s...

Страница 47: ...the RF and LO inputs A nominal cable loss between the test set and extender modules is assumed If the ALC mode Enable Test Set RF ALC is off the max power may be set by the user in the Max Power Limi...

Страница 48: ...ficant degradations in the system that make the performance unacceptable The calibration kit and test environment can affect the System Operation Check results Refer to Site Preparation on page 23 Whe...

Страница 49: ...Display all receivers on the analyzer s screen using the following menu selections System Service Utilities Receiver Display c Compare the A 1 and R1 1 traces to the data for your modules Test and Ref...

Страница 50: ...Chan Trace Delete Trace c Select Preset Trace Chan Trace New Trace Select S12 S21 S34 and S43 This test confirms that the modules are sourcing and receiving Refer to your millimeter wave modules data...

Страница 51: ...Keysight N5261 62A User s Service Guide 45 Installation System Operation Figure 1 30 Uncalibrated S12 and S21...

Страница 52: ...4 for connections e Normalize each trace Select the trace and press Memory Normalize f For a 1 Port system remove the TEST IF cable from the test set or module For a 2 Port or 4 Port system disconnect...

Страница 53: ...s in the documentation included with the module If the REF IF and Test IF levels are low connect the REF IF and TEST IF cables directly from the mm wave module to the analyzer s rear panel IF Inputs I...

Страница 54: ...48 Keysight N5261 62A User s Service Guide...

Страница 55: ...Keysight N5261 62A User s Service Guide 49 Service Information...

Страница 56: ...ysight Support Services and Assistance on page 92 Description Keysight Part Number Millimeter Head Interface Bd N5261 60101 DC Power Bd N5261 60102 RF LO Bias ALC Bd N5261 60103 Preamplifier Bias Bd N...

Страница 57: ...FAN AC IN Active ON LED Frt Pnl 5 Vdc Interface Bd PCB2 J11 J10 DC Pwr Bd PCB3 5 15 15 Vdc J8 J5 J9 J6 PCB5 Over Current LEDs Frt Pnl 5 Vdc J7 PCB4 Port Status LEDs Frt Pnl 5 Vdc J4 J1 Port 1 Port 2 D...

Страница 58: ...CB3 5 15 15 Vdc J8 J5 J9 J6 PCB5 Over Current LEDs Frt Pnl 5 Vdc J7 PCB4 Port Status LEDs Frt Pnl 5 Vdc J4 J1 J3 J2 Port 1 Port 2 Port 3 Port 4 DC Pwr 12 Vdc Front Pnl JTAG J1 Port 1 Test Port 1 Ref P...

Страница 59: ...Leveled 8 to 19 GHz 10 5 11 5 dB Gain SRC 1 IN 8 to 19 GHz Divider N5262 80003 Isolator 0955 1595 5087 7750 Pre Amp 7 dB 7 2 dB Isolator 0955 1595 RF Section Dir Coupler 0955 0148 10dB Damage 15 dBm 3...

Страница 60: ...80021 5086 7771 LO Amp Dir Coupler 0955 0148 ALC Sw d Dectector 33330 80021 5086 7771 Port 1 2 RF Amp ALC Sw d 6 dB 6 dB 5087 7733 Solid State Sw SRC 1 Out In Rear Panel Front Panel Port 2 RF Out 8 to...

Страница 61: ...2A 4 Port mm WaveTest Set Controller Keysight 4 Port PNA C Port 3 A Port 1 Keysight 4 Port mm wave System Port 1 S2 2 1 C DC3 LO Amp1 Pre Amp1 10dB DC1 RF Amp1 S1 2 1 C DC2 RF Amp2 SCR 2 Input LO Inpu...

Страница 62: ...Top View Interface Bd Test Set Controller Bd Power Supply LEDs J10 J11 J12 J13 J14 Slope Attn Cable Assy Isolator Port 1 2 RF Switch Isolator RF Mod Amp Coupler LO Mod Amp LO Preamp Power Divider 56 K...

Страница 63: ...Service Information 2 Figure 2 8 Sloped Attenuator Cable Assembly Keysight N5261 62A User s Service Guide 57...

Страница 64: ...Figure 2 2 on page 52 for IF cable routing between the Interface board and the front and rear panels Isolator x4 Port 1 2 LO Mod Amp Test Set Interface Bd Slope Atten Cable Assy Controller Bd ALC Amp...

Страница 65: ...261 62A Bottom View Fan Power Supply Line Module DC Power LED Cable DC Power Dist Board DC Power Wire Harnesses Fuse Assembly Toriod Filter Keysight N5261 62A User s Service Guide 59 1 1 N5261A will o...

Страница 66: ...Millimeter Head Controller The rear panel fan is on when the Controller board supplies are operational IF the Controller board is replaced the gain data will need to be stored into the new board Refe...

Страница 67: ...ach Mod Amp to set the maximum output power to 12 0 or 12 5 dBm R3 The output of each amplifier is connected to a coupler and with a detector for ALC the mod amps provide RF and LO leveling Each Mod A...

Страница 68: ...h LO Out Two 50 ohm terminators are installed on the unused N5261A divider paths If a system is configured with a unused port a 1 Port reflection system for example the front panel LO Output ports are...

Страница 69: ...position 2 AC Line voltage checks a Ensure the proper AC line voltage is present at the instrument line cord b Remove the AC power cord from the instrument Check the instrument AC line module 5 amp fu...

Страница 70: ...60002 connections d Measure the 12 Vdc red wires on the DC Power board If the 12 Vdc is present replace the DC power cable from the front panel N5652 60001 If the 12 Vdc is not present go to step 4 e...

Страница 71: ...dicators are not operating verify the ribbon cable connection and ensure the rear panel test set interface cable is connected securely Proceed to the next section for further troubleshooting before re...

Страница 72: ...istribution Details Ref Des Load DC Voltage DC Source J10 RF Amp1 2 2 9 15 15 Main PS U22 U23 J11 RF Amp2 2 2 9 15 15 Main PS U22 U23 J12 LO Pre Amp 15 Main PS J14 LO Amp 2 2 9 15 15 Main PS U22 U23 J...

Страница 73: ...r and Detector from the LO Amp section If the RF Amp is replaced a gain calibration must be performed 3 If you suspect the Solid State Switch SW1 SW2 confirm that one of its two LEDs toggle on off whe...

Страница 74: ...el Port 1 4 REF and IF coax cables and rear panel coax cables A B C D and R are properly connected to the Interface board Verify that the insertion loss is not 2 5 dB Replace the coax cable if defecti...

Страница 75: ...elect Utility System Configure Millimeter Module Configuration The Millimeter Module Configuration window will be displayed Standard PNA should be the Selected Configuration If not click on Standard P...

Страница 76: ...nd A write command is of the form cont ext test data n m n is the address and m is the data to be written Typically these values may be any number up to three digits in length A read command is of the...

Страница 77: ...in Table 2 3 on page 76 The commands for reading and writing gain factors for are listed in Table 2 5 on page 81 Table 2 2 I O Commands 0 32 0 32 1 32 2 address for reading two digits from model numbe...

Страница 78: ...within 10 dB of flat and have no significant holes or discontinuities Refer to Figure 2 14 below 3 Select Sweep Sweep Type CW Time Set the sweep time to 10 seconds 4 5 Disconnect the cable from LO IN...

Страница 79: ...on on page 69 Use a frequency range of 8 to 20 GHz and a power level of 2 dBm 1 Re install the SRC1 RF IN to SRC1 RF OUT and the SRC2 RF IN to SRC2 RF OUT rear panel jumpers 2 Connect PNA Port 2 cable...

Страница 80: ...1 enable ALC and output to Port 1 6 Measure the Port 1 RF OUT power using the power sensor Confirm that RF OUT is 12 5 dBm 1 5 dB 7 Repeat the previous three steps for each of the remaining test set...

Страница 81: ...ss on the N5262A The IF paths for the N5262A are switched i e multiplexed see Figure 2 2 on page 52 The cable connected to PNA Port 1 must be long enough to reach the rear panel of the test set 1 Prep...

Страница 82: ...rt 2 TEST IF B B 16 4 3 Port 3 TEST IF n a C 16 2 3 Port 4 TEST IF n a D 16 1 3 Port 1 REF IF C D 16 8 6 0 Port 1 REF IF n a R 16 33 7 5 Port 2 REF IF D C 16 4 6 0 Port 2 REF IF n a R 16 2 7 5 Port 3...

Страница 83: ...Service Information 2 Figure 2 17 Test IF Path to A B C or D N5262A Figure 2 18 Ref IF to A B C or D N5262A Figure 2 19 Ref IF to R N5262A Keysight N5261 62A User s Service Guide 77...

Страница 84: ...ditional Required Procedures for Assemblies Replaced Description of the Replaced Component Keysight Part Number Location Ports 1 2 RF Section1 Location Ports 3 4 RF Section1 Location LO Section Genera...

Страница 85: ...is installed Instructions for issuing Test Set I O commands are contained in the Preparation section beginning on page 68 Table 2 4 on page 78 indicates which procedure s is required Measure Gain Fact...

Страница 86: ...Service Information 11 Move the PNA Port 1 cable to Test Set Port 2 RF OUT 12 Record the values for Port 2 in Table2 5onpage81 80 Keysight N5261 62A User s Service Guide...

Страница 87: ...o Port 3 The Test Set I O command to set the path to Port 4 is 0 32 Table 2 5 Gain Factor Addresses and Values Ports Freq Write Address Read Address Value Port 1 7 GHz 144 16 Port 1 10 GHz 148 20 Port...

Страница 88: ...d NCLR labels are silk screened near the sides of the switch To enable writing slide both sections of the switch toward U5 To disable writing slide both sections of the switch away from U5 The switch...

Страница 89: ...ort 2 to SRC 1 IN 3 Connect the power sensor to Port 1 RF OUT 4 Issue the Test Set I O commands 32 0 and 0 1 ALC on and Port 1 RF OUT 5 Identify the Port 1 2 ALC Amp see Figure 2 10 on page 58 Identit...

Страница 90: ...r to Figure 2 2 on page 52 and Figure 2 10 on page 58 for the location of the Interface Board SMB connectors and IF cable routing information The SMB connectors on the cables that connect to the Inter...

Страница 91: ...with a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited Always use...

Страница 92: ...e three prong AC power cord supplied with this product Failure to ensure adequate earth grounding by not using this cord may cause product damage and the risk of electrical shock This product is desig...

Страница 93: ...e user to dangerous voltages Disconnect the instrument from all voltage sources before opening No operator serviceable parts inside Refer servicing to qualified personnel To prevent electrical shock d...

Страница 94: ...rical supply before cleaning Use a dry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally If flammable cleaning materials are used the materi...

Страница 95: ...chassis The CE mark is a registered trademark of the European Community If accompanied by a year it is when the design was proven The CSA mark is a registered trademark of the CSA International This m...

Страница 96: ...3rd Edition Acoustic statement European Machinery Directive 2022 42 EC 1 7 4 2U Accoustical noise emission LpA 70 dB Operator position Normal operation mode Per ISO 7779 EMI and EMC Compliance EMC Com...

Страница 97: ...rotection are listed below Purchase acceptable ESD accessories from your local supplier Conductive table mat and wrist strap combination Conductive floor mat and heal strap combination Both types when...

Страница 98: ...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 internal hard disk dri...

Страница 99: ...This information is subject to change without notice Keysight Technologies 2011 2014 2016 2019 Print Date May 2019 Supersedes July 2016 www keysight com...

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