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Keysight Technologies E4360 Series Service Manual Download Page 55

Troubleshooting 5

Series E4360 Service Guide

55

Backplane Board Troubleshooting

Troubleshooting the backplane board consists of visually inspecting the
pins and pin connections.

If there are missing or broken pins, replace the board.

If there are bent pins, carefully try to straighten the pin. If you are
unsuccessful, replace the board.

Closely examine the solder connections at the pins. If there are cracks in
the solder, carefully re-solder the connector. If unsuccessful, replace the
board.

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Summary of Contents for E4360 Series

Page 1: ...Service Guide Keysight Technologies Series E4360 Modular Solar Array Simulator ...

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Page 3: ... software documentation that is not customarily provided to the public or 2 Relinquish to or otherwise provide the government rights in excess of these rights customarily provided to the public to use modify reproduce release perform display or disclose commercial computer software or commercial computer software documentation No additional government requirements beyond those set forth in the EUL...

Page 4: ...flammable gases or fumes Do Not Remove the Instrument Cover Only qualified service trained personnel who are aware of the hazards involved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover Do Not Modify the Instrument Do not install substitute parts or perform any unauthorized modification to the product Return the prod...

Page 5: ...ecautions 42 Disassembly Procedures 42 Installing a Redundant Ground for 400 Hz Operation 48 5 Troubleshooting 49 Preliminary Checkout 50 Overall Troubleshooting 51 Front Panel Troubleshooting 54 Bias Board Troubleshooting 54 Backplane Board Troubleshooting 55 Power Module Troubleshooting 56 Calibration and Passwords 58 Initialization 58 6 Replaceable Parts 59 E4360A Mainframe Parts List 60 E4360A...

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Page 7: ...e a defective module you can return it to Keysight Technologies for repair or replacement Refer to the following note NOTE You can contact Keysight Technologies at one of the following telephone numbers for warranty service or technical support information In the United States 800 829 4444 In Europe 31 20 547 2111 In Japan 0120 421 345 Or use our Web link for information on contacting Keysight in ...

Page 8: ...r repair be sure to Attach a tag to the unit identifying the owner and indicating the required service or repair Include the model and serial number Place the unit in its original container with the appropriate packaging material and secure the container with strong tape or metal bands If the original shipping container is not available place your unit in a container that will ensure at least 4 in...

Page 9: ... module in channel 1 SYST CHAN MOD 1 SYST CHAN OPT 1 SYST CHAN SER 1 Firmware Upgrade You can query the instrument s firmware revision either from the front panel or over the remote interface as previously described under Additional Information To upgrade your instrument with the latest firmware revision go to http www keysight com find E4360firmware The upgrade procedure consists of the following...

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Page 11: ...ures described in this chapter verify that the Keysight E4360 Series Solar Array Simulator is operating normally and is within published specifications NOTE Perform the verification tests before calibrating your solar array simulator If the solar array simulator passes the verification tests the unit is operating within its calibration limits and does not need to be re calibrated ...

Page 12: ...monitor 15 A 0 1 ohm TC 4ppm Guildline 9230A 15R DC power supply 5 V 5 A for negative current readback Keysight 6611C or equivalent Digital multimeter Resolution 10 nV 1V Readout 8 1 2 digits Accuracy 20 ppm Keysight 3458A or equivalent Load resistors 3 8 Ω 300 W for CV ripple noise 1 3 1 Ω 300 W for CV ripple noise Additional 300 W resistors for Jxx models refer to test record cards Ohmite C300K8...

Page 13: ...inals Connect the voltmeter directly to these current monitoring terminals Electronic Load Many of the test procedures require the use of a variable load capable of dissipating the required power If a variable resistor is used switches should be used to connect disconnect or short the load resistor For most tests an electronic load can be used The electronic load is considerably easier to use than...

Page 14: ...ar array simulator and program the instrument as indicated in the test record form under Voltage Programming Readback Min Voltage with the load off The CV annunciator should be on and the output current should be close to zero 3 Record the output voltage reading from the DMM and the voltage measured over the interface The readings should be within the limits specified in the test record form under...

Page 15: ...st measures the change in output voltage that results from a change in AC line voltage from the minimum to maximum value within the line voltage specifications 1 Turn off the solar array simulator and connect the ac power line through a variable voltage transformer or an AC source 2 Connect a DMM and an electronic load see Test Setup figure A Set the variable voltage transformer or AC source to no...

Page 16: ...bandwidth limit on usually 20 or 30 MHz and set the sampling mode to peak detect 4 Turn on the solar array simulator and program the instrument as indicated in the test record form under CV Ripple and Noise and enable the output Let the oscilloscope run for a few seconds to generate enough measurement points On the Keysight Infiniium scope the maximum peak to peak voltage measurement is shown at t...

Page 17: ...ed the rms limits in the test record form under CV Ripple and Noise rms SAS Table mode Constant Current Tests NOTE Test each output channel individually Refer to the appropriate test record form for the instrument settings of the model you are checking Current Programming and Readback Accuracy Test category performance calibration This test verifies that the current programming and measurement fun...

Page 18: ... reading on the display The difference between the readings should be within the limits specified in the Performance Test Record Form under Current measured over interface CC Load Effect Test category performance This test measures the change in output current resulting from a change in output voltage from full scale to short circuit 1 Turn off the solar array simulator and connect the current shu...

Page 19: ...6 Divide the voltage drop DMM reading across the current monitoring resistor by its resistance to convert to amperes and record this value Iout 7 Adjust the transformer or AC source to the highest rated line voltage 264 VAC 8 Divide the voltage drop DMM reading across the current monitoring resistor by its resistance to convert to amperes and record this value Iout The difference between the DMM r...

Page 20: ... N A N A __________ __________ __________ __________ 150 mV 24 mV 125 mV 20 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 20 mA Iout 20 mA 8 463 A Iout 37 mA Iout 50 mA __________ __________ __________ __________ __________ 20 mA Iout 20 mA 8 537 A Iout 37 mA ...

Page 21: ..._________ __________ __________ __________ 150 mV 24 mV 125 mV 20 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 22 mA Iout 23 mA 9 2594 A Iout 41 6 mA Iout 55 mA __________ __________ __________ __________ __________ 22 mA Iout 23 mA 9 3406 A Iout 41 6 mA Iout...

Page 22: ...A N A N A __________ __________ __________ __________ 150 mV 25 mV 136 mV 21 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 19 mA Iout 19 mA 7 965 A Iout 35 mA Iout 48 mA __________ __________ __________ __________ __________ 19 mA Iout 19 mA 8 035 A Iout 35 mA...

Page 23: ... A N A __________ __________ __________ __________ 150 mV 26 mV 147 mV 22 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 17 mA Iout 17 mA 6 969 A Iout 31 mA Iout 42 mA __________ __________ __________ __________ __________ 17 mA Iout 17 mA 7 031 A Iout 31 mA Io...

Page 24: ...A N A N A __________ __________ __________ __________ 150 mV 22 mV 99 mV 22 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 5 mA Iout 5 mA 1 991 A Iout 9 mA Iout 13 mA __________ __________ __________ __________ __________ 5 mA Iout 5 mA 2 009 A Iout 9 mA Iout 1...

Page 25: ...N A N A N A N A __________ __________ __________ __________ 150 mV 30 mV 195 mV 24 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 10 mA Iout 10 mA 4 98 A Iout 20 mA Iout 26 mA __________ __________ __________ __________ __________ 10 mA Iout 10 mA 5 02 A Iout 2...

Page 26: ...A __________ __________ __________ __________ 150 mV 30 mV 195 mV 24 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 11 mA Iout 11 mA 5 478 A Iout 22 mA Iout 28 mA __________ __________ __________ __________ __________ 11 mA Iout 11 mA 5 522 A Iout 22 mA Iout 28...

Page 27: ... N A __________ __________ __________ __________ 150 mV 30 mV 195 mV 24 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 11 mA Iout 11 mA 5 3782 A Iout 21 8 mA Iout 28 mA __________ __________ __________ __________ __________ 11 mA Iout 11 mA 5 4218 A Iout 21 8 m...

Page 28: ...N A N A N A __________ __________ __________ __________ 150 mV 28 mV 172 mV 23 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 12 mA Iout 12 mA 5 976 A Iout 24 mA Iout 31 mA __________ __________ __________ __________ __________ 12 mA Iout 12 mA 6 024 A Iout 24 ...

Page 29: ...A __________ __________ __________ __________ 150 mV 34 mV 239 mV 27 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 8 mA Iout 8 mA 3 7844 A Iout 15 6 mA Iout 21 mA __________ __________ __________ __________ __________ 8 mA Iout 8 mA 3 8156 A Iout 15 6 mA Iout ...

Page 30: ..._______ __________ __________ __________ 150 mV 27 mV 158 mV 22 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 15 mA Iout 15 mA 6 2724 A Iout 27 6 mA Iout 38 mA __________ __________ __________ __________ __________ 15 mA Iout 15 mA 6 3276 A Iout 27 6 mA Iout 3...

Page 31: ..._________ __________ __________ __________ 150 mV 35 mV 249 mV 28 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 7 mA Iout 7 mA 3 3862 A Iout 13 8 mA Iout 19 mA __________ __________ __________ __________ __________ 7 mA Iout 7 mA 3 4138 A Iout 13 8 mA Iout 19 ...

Page 32: ...N A __________ __________ __________ __________ 150 mV 32 mV 217 mV 26 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 0 42 A 8 mA Iout 8 mA 3 984 A Iout 16 mA Iout 22 mA __________ __________ __________ __________ __________ 8 mA Iout 8 mA 3 984 A Iout 16 mA Io...

Page 33: ...________ __________ __________ 150 mV 29 mV 178 mV 24 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 0 42 A 14 mA Iout 14 mA 6 7225 A Iout 27 5 mA Iout 34 5 mA __________ __________ __________ __________ __________ 14 mA Iout 14 mA 6 7775 A Iout 27 5 mA Iout 34...

Page 34: ...________ __________ __________ __________ 150 mV 30 mV 189 mV 24 mV Constant Current Tests Current Programming Readback Min Current Iout Current measured over interface High Current Iout Current measured over interface Current measured over interface 0 42 A 14 mA Iout 14 mA 6 972 A Iout 28 mA Iout 35 5 mA __________ __________ __________ __________ __________ 14 mA Iout 14 mA 7 028 A Iout 28 mA Io...

Page 35: ...apter 2 for a list of the equipment required for calibration Also refer to Measurement Techniques for information about connecting the voltmeter and current shunt NOTE Perform the verification tests before calibrating your solar array simulator If the solar array simulator passes the verification tests the unit is operating within its calibration limits and does not need to be re calibrated Calibr...

Page 36: ...read each time OPC is given Once started you must perform the complete calibration procedure in its entirety As each calibration section is completed the instrument calculates new calibration constants and begins using them However these constants are not saved in nonvolatile memory until a SAVE command is explicitly given Exit the calibration mode either by logging out of the front panel menu or ...

Page 37: ...p 3 Measure the output voltage with the DMM and enter the data Front Panel SCPI Command Select the Measured Data field Enter the data from the external DMM Press Select when done CAL VOLT data Step 4 Select the second voltage calibration point Front Panel SCPI Command Select Next The information field should indicate Enter P2 data CAL VOLT LEV P2 OPC Step 5 Measure the output voltage with the DMM ...

Page 38: ...tep 9 Calculate the shunt current I V R and enter the data Front Panel SCPI Command Select the Measured Data field Enter the data from the external DMM Press Select when done CAL CURR data Step 10 Select the second current calibration point Front Panel SCPI Command Select Next The information field should indicate Enter P2 data CAL CURR LEV P2 OPC Step 11 Calculate the shunt current I V R and ente...

Page 39: ...min Calibration Password The password must be numeric and can be up to 15 digits in length After it has been changed you can only enter the calibration mode by providing the correct password If the password is lost access can be restored by setting an internal switch that resets the password to 0 If the message Locked out by internal switch setting or Calibration is inhibited by switch setting app...

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Page 41: ...mbly Electrostatic Discharge ESD Precautions 42 Disassembly Procedures 42 Installing a Redundant Ground for 400 Hz Operation 48 This chapter discusses the disassembly procedures for troubleshooting and repairing Keysight E4360 SAS mainframes ...

Page 42: ...foam vinyl paper and other static generating materials from the immediate work area Disassembly Procedures WARNING SHOCK HAZARD Turn off the mainframe and disconnect its power cord before attempting any of the following procedures Required Disassembly Tools Tool Use 9 32 Hex driver Removing GPIB connector 5 16 Hex driver Removing DC cable assembly from bias supply T20 Torx driver Removing bias boa...

Page 43: ...2 To remove a module first remove the two fastening screws at either end of the module Grasp the module at the ends and lift it straight up out of the mainframe Step 3 To install a power module align the module over the alignment pins and push it down onto the mainframe connector Step 4 Fasten the power module or filler module to the mainframe Use the screws provided with the module and install th...

Page 44: ...4 Disassembly 44 Series E4360 Service Guide ...

Page 45: ...left side and two at the rear of the unit Then remove the screw at the front of the cover Lift off the cover Step 3 The calibration switch is on the interface board near the ribbon cable To change the calibration switch settings use a small screwdriver to move the switches Refer to chapter 3 for settings information CAUTION Do not use a pencil to move the switches Any graphite dust that gets on th...

Page 46: ...e covers as previously described Step 2 Disconnect all cable assemblies from the bias board Step 3 Use a T10 driver and remove the screws that attach the bias board to the chassis Use a T20 driver and remove the 4 screws that attach the board to the backplane assembly Lift the board out Step 4 To reinstall the bias board perform the above steps in reverse order Replace all covers when finished Rem...

Page 47: ... each side of the front panel assembly that attach the front panel assembly to the chassis Slide the front panel assembly forward and away from the chassis You now have access to the remaining screws that install the bulk supplies Step 4 Use a T20 driver and remove all screws that fasten the bulk supplies to the chassis Step 5 Disconnect the ribbon cable that connects the interface board to the fr...

Page 48: ... Hardware for attaching wire to earth ground point The following tools are required to install the redundant ground 3 8 inch hex wrench Step 1 Remove the top cover of the interface board as previously described under Accessing the Calibration switch Step 2 Use the wrench and remove the binding post 1 from the rear of the chassis The binding post is located between the AC input connector and the GP...

Page 49: ...reliminary Checkout procedure in the beginning of this chapter If the solar array simulator passes selftest and there are no obvious faults perform the verification procedures in chapter 2 to determine if any output modules are not calibrated or are not operating properly This will help isolate a problem to a specific output module The following table documents the test equipment required for trou...

Page 50: ...t modules the solar array simulator will not operate Check that the mainframe has the latest firmware installed Turn off the unit and cycle power to run selftest again If the supply passes selftest and there are no obvious faults perform the verification procedures in chapter 2 to determine if any functions are not calibrated or are not operating properly Selftest Error List The following table do...

Page 51: ...l board and bias board Perform bias assembly troubleshooting Perform front panel assembly troubleshooting No output on all channels YES Check for 48V from A2 bulk supply see note Perform bias assembly troubleshooting Perform backplane assembly troubleshooting YES Go to Sheet 2 Is the fan running NO YES YES Check the line switch Check cables from AC plug to line switch and from line switch to A2 bu...

Page 52: ...latest firmware revision Update firmware if required Replace the power module YES NO NO Not getting full output Perform verification procedures in Service guide Calibrate the output if required Replace the power module YES Can t calibrate any outputs Check calibration jumper settings Reset calibration password using calibration jumpers Update firmware if required Replace interface assembly YES NO ...

Page 53: ... module YES NO Off voltage not at zero Replace the power module YES NO Digital port not working Perform bias assembly troubleshooting Replace interface assembly YES NO Remote interface not working Check for latest firmware revision and update if required Replace interface assembly YES NO There is either no problem with the power supply or the problem could not be isolated with this proccedure Perf...

Page 54: ... Board Troubleshooting Troubleshooting the bias board involves checking for the presence of the correct bias voltages on the board Refer to the following table and figures Note that if the bias voltages at test points 2 4 in the following table are not present it could be caused by a defect in the output module or interface board that is pulling the bias voltage low Test Point Location Voltage Act...

Page 55: ...ecting the pins and pin connections If there are missing or broken pins replace the board If there are bent pins carefully try to straighten the pin If you are unsuccessful replace the board Closely examine the solder connections at the pins If there are cracks in the solder carefully re solder the connector If unsuccessful replace the board ...

Page 56: ...nnel Fail message No Output No fan Yes No Yes Yes No Unregulated voltage 1 Replace DPM 2 Replace main board No Yes No No Protection falsely tripping 1 Replace DPM 2 Replace main board Yes If you suspect a defective output module first place a known good module in the defective module s channel slot If the good module does not work the problem is most likely with the mainframe and not the output mo...

Page 57: ...ng Sheet 2 Calibration fixed problem Voltage current accuracy off Cannot get to full power Remote sensing problems 1 Replace DPM 2 Replace main board 1 Check output connector 2 Replace main board No No Yes No Yes Yes No End Spec failure Calibrate unit From Sheet 1 Yes No Yes ...

Page 58: ... s Guide for information on setting the calibration password as well as the Admin menu password Initialization The solar array simulator s model number serial number and other constants that are required to program the instrument are stored in an EEPROM on the A6 board If this board is replaced the instrument must be re initialized To initialize the solar array simulator you must send the followin...

Page 59: ...s E4360A Mainframe Parts List 60 E4360A Mainframe Parts Location Diagram 61 E4361A E4362A Parts List 63 E4361A E4362A Parts Location Diagram 63 The following table documents the replaceable parts assembles The diagrams show the location of the parts ...

Page 60: ...bulk supply to bulk supply 11 5185 1358 qty 2 5185 1358 Cable bulk supply to ground 12 5185 1354 5185 1354 Ribbon cable to front panel 13 5188 4236 5188 4236 Bias cable to backplane 14 5185 8865 5188 9625 AC cable Line switch to RFI filter 15 5185 8864 5185 8864 Ribbon cable to backplane 16 5188 4219 5188 9624 Bias cable assembly to interface board 17 5063 9208 not used Strap handle 18 E6601 21033...

Page 61: ...60A Mainframe Parts Location Diagram 3 4 5 6 7 8 1 2 23 9 10 A4 15 13 A1 A2 A3 A6 A5 16 25 20 21 blue stripe faces right red stripe faces back blue stripes face back 11 24 12 upper lower 14 22 26 located under RFI cover 27 17 18 19 blue stripe faces left ...

Page 62: ...le Parts 62 Series E4360 Service Guide E4360AJ01 3 4 5 6 7 8 1 2 9 A4 15 13 A1 A2 A3 A6 A5 16 25 blue stripe faces right red stripe faces back blue stripe faces left 11 24 12 14 26 27 blue stripe faces left 20 23 ...

Page 63: ...E4361 60102 A1 main board PCA tested A1 E4361A J01 E4361 60002 A1 main board PCA tested A1 E4361A J02 E4361 60103 A1 main board PCA tested A1 E4361A J03 E4361 60104 A1 main board PCA tested A1 E4361A J11 5067 6788 A1 main board PCA A1 E4362A E4362 60102 A1 main board PCA tested A1 E4362A J01 E4362 60105 A1 main board PCA tested A1 E4362A J02 E4362 60106 A1 main board PCA tested A1 E4362A J03 E4362...

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Page 65: ...s Displaying Error Messages 66 Error List 66 This appendix gives the error numbers and descriptions that are returned by the Keysight E4360 Series Solar Array Simulator Error messages can be displayed on the front panel and also read back programmatically ...

Page 66: ...out by the calibration switch 104 Bad sequence of calibration commands Calibration commands have not been entered in the proper sequence 105 Unexpected output current The measured output current is outside the acceptable range 106 Zero measurement out of range error The zero measurement value is outside the acceptable range 107 Programming cal constants out of range The programmed calibration cons...

Page 67: ...les do not match group NV config A module has been replaced in the mainframe that does not match the characteristics required for it to be a grouped module 210 Frame NVRAM error An error has occurred in the mainframe s nonvolatile random access memory 302 Option not installed The option that is programmed by this command is not installed 303 There is not a valid acquisition to fetch from There is ...

Page 68: ...6 Table not found A table with that name has not been found 327 Cannot de select table in Table mode The table cannot be de selected because the instrument is operating in Table mode Set the instrument to Fixed mode to de select the table 328 Calculated open circuit voltage too large The calculated open circuit voltage exceeds the output voltage rating of the instrument 329 Exceeds soft limit The ...

Page 69: ...lid character in number An invalid character for the data type was found in the command string 123 Exponent too large The magnitude of the exponent was larger than 32000 124 Too many digits The mantissa of a numeric parameter contained more than 255 digits excluding leading zeros 128 Numeric data not allowed A numeric parameter was received but a character string was expected 130 Suffix error Gene...

Page 70: ...e 222 Data out of range A data element could not be executed because the value was outside the valid range 223 Too much data A data element was received that contains more data than the instrument can handle 224 Illegal parameter value An exact value was expected but not received 225 Out of memory The device has insufficient memory to perform the requested operation 226 Lists not same length One o...

Page 71: ...ocked query error occurred 440 Query UNTERMINATED after indefinite response A query was received in the same program message after a query indicating an indefinite response was executed Selftest Errors these errors set Standard Event Status register bit 3 202 Thermistor Failed chan The internal temperature thermistor has failed chan is the channel location of the failure 202 Mass Storage Error The...

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Page 73: ...oard 39 bulk supply 40 front panel 39 interface board 39 parts location 55 ribbon cables 36 tools 36 E electronic load 11 electrostatic discharge precautions 6 36 error codes 58 displaying 58 selftest 44 F firmware upgrade 7 flowchart 45 front panel 39 48 G ground redundant for 400 Hz 41 H history 2 I initialization post repair 52 installing modules 37 instrument identification 6 7 interface board...

Page 74: ...ies E4360 Service Guide backplane board 49 bias board 48 flowchart 45 front panel 48 V verification 10 12 18 equipment 10 procedure 12 15 voltage programming accuracy 12 readback accuracy 12 W Warning 3 Web URL s 5 ...

Page 75: ...This information is subject to change without notice Keysight Technologies 2008 2018 Edition 8 December 2018 E4360 90010 www keysight com ...

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