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Digalog Systems 2040D Series, Maintenance Manual

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Digalog Systems 2040D Series Maintenance Manual Download Page 18

Series 2040 Test System

Series 2040 Maintenance Manual V2.00

Selftest & Calibration

17

Any type of failure during calibration could indicate a hardware problem. If a

failure during Functional was the reason that a calibration is being run, refer to

the Selftest Failure Analysis sheet on page 8 of this section.

Summary of Contents for 2040D Series

Page 1: ...Series 2040D Test Systems 2040D Maintenance Manual Part Number 4200 0181 Version 1 0...

Page 2: ...enu Bar 25 TESTHEAD PATCHBOARD UUT P S BUILT IN DIAGNOSTICS 31 Breakers and Test Points 32 LED Indicators 32 GPIB HPIB POWER SUPPLIES 37 Troubleshooting Hewlett Packard Power Supplies 37 Certification...

Page 3: ...CONTACT SPRING REPAIR 63 USE OF PATCHBOARD SPRING REMOVAL TOOL 0000 2746 64 CONTACT SPRING REPLACEMENT Conventional Method 65...

Page 4: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Maintenance Overview 3 System Overview...

Page 5: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Maintenance Overview 4...

Page 6: ...n internal precision voltage standard The internal precision time standard is a Temperature Compensated Crystal Oscillator located on the Time Measurement System board The Calibration and Selftest rou...

Page 7: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Maintenance Overview 6...

Page 8: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Selftest Calibration 7 Selftest Calibration...

Page 9: ...asurements and calculating calibration terms which can be referenced at a later time These terms are used by the hardware functional calls to account for gains offsets and timing discrepancies and the...

Page 10: ...e towards the front of the unit until it is vertical B Slide the pins on the rear of the Selftest unit into the Patchboard and rotate the Selftest unit forward until it is vertical and sets into the P...

Page 11: ...a Fail Data or No Data All Data includes all of the pass or fail sequences from the test Fail Data includes only information on the tests that failed No Data disables that reporting function To select...

Page 12: ...lar test If a related group of tests is to be run they may be selected using only the mouse For example if the Measurement Display Electronics group is to be selected place the mouse pointer on test 3...

Page 13: ...e direct left of the stop button and the Windows text tool will appear in place of the mouse pointer Click the left mouse button while texttool is displayed in the box and a blinking cursor appears in...

Page 14: ...RECEIVER Remove the Selftest Assembly and carefully inspect the alignment of the Patchboard receiver pins Adjust any pins that are misaligned remount the Selftest Assembly and re test After the common...

Page 15: ...f MRLY RMUX AMS 13 14 rmux_dig_f RMUX TH Cont CPU TH P S Cont 15 rmux_f RMUX AMS Selftest 16 rmux_prt_f RMUX AMS MDE 17 18 19 20 21 arb_mem_f ASB TH Cont CPU TH P S Cont 22 arb_brst_f ASB AMS MDE 23 a...

Page 16: ...st_f UUT Controller AMS RMUX Selftest 55 th_iso_f Scope Connected Internal coax short 56 57 msp_ser_f MSP TH Cont CPU TH P S Cont 58 59 60 61 ocio_dig_f OCIO TH Cont CPU TH P S Cont 62 ocio_f OCIO Sel...

Page 17: ...ests box and select the 1 button for the number of times to be run See page 6 Ensure that the Printer and Fail Data are selected so that any failures will be printed automatically The following is a l...

Page 18: ...l V2 00 Selftest Calibration 17 Any type of failure during calibration could indicate a hardware problem If a failure during Functional was the reason that a calibration is being run refer to the Self...

Page 19: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Selftest Calibration 18...

Page 20: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Diagnostics 19 Diagnostics...

Page 21: ...ally problematic resources in the tester STEX can be very useful in aiding an operator who is troubleshooting possible problems in the Digalog testers by providing a graphical depiction of the locatio...

Page 22: ...not be accepted as proper files for analysis by STEX Analyzing Selftest Data When starting the STEX program the graphics show the Testhead as being empty Under the menu item File are the selections O...

Page 23: ...ighted in red with a label indicating which Choice it is in relative importance The information box with the Choice information will have the resource s description and other optional information rega...

Page 24: ...further possible insight into any problems with the tester Viewing the individual failures of a test may aid in troubleshooting an individual board Examining any system error messages and referring to...

Page 25: ...closes the currently selected diagnostic file and clears all result information from the program s windows This clears the on screen Testhead board configuration and removes any individual test result...

Page 26: ...e saved to a project specific file called resource ini and can be used by other Digalog System s applications Specifically the software is capable of printing out a Patchboard Map containing Patchboar...

Page 27: ...y from the File menu will be briefly discussed Link to Tester This item will toggle the link between the application and a tester When checked the application assumes a Testhead is present and enables...

Page 28: ...Maintenance Manual V2 00 Diagnostics 27 Manual Generation If Manual generation is selected the screen below will be displayed Note that the Power Supply Distribution board is always in slot 0 and ther...

Page 29: ...rogrammer to select a power supply type a GPIB HPIB Device number and what Relay Control board will be used The spin control on the middle left of the dialog Patchboard Connection is used to define wh...

Page 30: ...s directly linked to the slot drop down menu therefore any slot changes in either place will be reflected in the other View Testhead Configuration This utility displays the entire Testhead configurati...

Page 31: ...type name device designation and Patchboard connection for each supply as shown below Print Utility When this utility is selected from the File menu a small inputbox is displayed prompting for a speci...

Page 32: ...n over under voltage fault has occurred in a Patchboard power supply The power supply causing the fault will have it s respective LED extinguished Power could also have been removed from the Patchboar...

Page 33: ...DC PBF HP Fault PROX PBON Ext Fault Reset Breakers and Test Points 5VDC PB 15VDC PB 15VDC PB Common TPA1 TP1 TPA2 TP2 TPA3 TP3 TPA4 TP4 TPA5 TP5 5 2VDC PB 15VDC TH 15VDC TH 40VDC TH 40VDC TH 19VDC TH...

Page 34: ...give it a command The fault loop is broken by the controller itself whenever the controller detects an error This signals to the other controllers that they too should shut down If a controller for a...

Page 35: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Diagnostics 34...

Page 36: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Diagnostics 35...

Page 37: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Diagnostics 36...

Page 38: ...HP power supply serially with each other and with the PSC board It is completely independent of the UUT P S controllers external fault loop and the fault loop for each non HP GPIB power supply The PSC...

Page 39: ...t will then drive its Fault output line low to signal the next HP power supply positioned below it in the loop Eventually the fault signal will reach HP P S 0 and it in turn will trigger the PSC board...

Page 40: ...ists between connectors P1 and P3 on the relay disconnect board 5 Otherwise on the second relay disconnect board verify that pin 3 relative to pin 4 of connector P1 which mates to the first relay disc...

Page 41: ...supply or in the previous HP power supply itself 11 Otherwise verify that pin 1 relative to pin 2 of connector P1 which mates to the previous relay disconnect board is low or at a logic 0 If not a con...

Page 42: ...Manual V2 00 Diagnostics 41 the PSC board itself Note If there are no wires in the fault inhibit cable of the HP power supply for the fault and inhibit signals pins 1 4 on connector P2 then jumper shu...

Page 43: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Diagnostics 42...

Page 44: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Certification 43 Certification...

Page 45: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Certification 44 ETHERNET PRINTER GPIB Z Y X 10MHZ EXTCLK EXTEVENT KEYBOARD COM 1 MODEM 10MHz TDAC GPIB...

Page 46: ...cision digital multimeter and a precision counter timer Both instruments are equipped with a GPIB interface so that the certification process in terms of instrument setup and measurement processing is...

Page 47: ...serial number of the 8840 Fluke multimeter in the Calibration Station This number can be found on a Digalog tag inside the Calibration Station next to the meter It also prompts for the Selftest Assem...

Page 48: ...isplaying the frequency counter The user should wait until the frequency is stable and then click on certify to start the test Again the results and a pass fail condition are displayed For the portion...

Page 49: ...on the screen The fourth procedure certifies the ICAM Selftest current measurement circuitry and the last certification screen is shown below Connect the ICAM Certification cable from the white conne...

Page 50: ...Series 2040 Test System Series 2040 Maintenance Manual V2 00 Module Repair and Replacement 49 Module Repair Replacement...

Page 51: ...mer must provide a method of payment for the repairs 2 Return the defective part and reference the RMA number All equipment being returned to Digalog Systems should be shipped prepaid and insured at t...

Page 52: ...he right 3 Lift up the side panel and remove it 4 Remove the two screws from the front edge of the inner panel and swing it out to expose the computer assembly 5 Carefully remove all of the cables fro...

Page 53: ...maintains its function without regard to the monitored supplies The result of the logical OR of any Testhead Internal Power Supply failure is logically OR d with any Patchboard Power Supply failure T...

Page 54: ...nd remove it 4 Remove the two screws from the front edge of the inner panel and swing it out to reveal the four power supplies 5 Locate the proper Testhead or Patchboard power supply connector for the...

Page 55: ...s you 2 to 3 inches 2 Remove the five fasteners for the filter housing plate as shown above and remove the plate from the cooling fan assembly 3 Loosen the two Testhead retaining screws located along...

Page 56: ...om the Testhead section of the AC Distribution box 7 Remove and replace the assembly through the Testhead bay taking care to route the wiring for the new Testhead fan assembly exactly as the old wirin...

Page 57: ...a Kikusui PDA110 1 5L completes the top power supply rack Directly beneath a second rack contains from left to right PS1 a Kikusui or Kenwood PD 35 20 and a Kikusui PD55 10 Kenwood PD56 10 The bottom...

Page 58: ...should slide directly forward Place the controller to be installed on the floor directly beside the controller being replaced Place it in the same orientation to make the process simpler One by one re...

Page 59: ...n access to the rear of the power supplies 2 Disconnect the AC power cords from the AC DC Distribution Box and remove the Power Output Programming cables from the UUT Controllers 3 Remove the screws i...

Page 60: ...Distribution Box and disconnect the GPIB cable Fault Inhibit cable and power output cable from the rear of the supply 3 If the faulty supply is the lower of two GPIB HPIB supplies it may be easier to...

Page 61: ...0 UUT GPIB HPIB POWER SUPPLY DISCONNECT AT TEST BAY From top to bottom PS0 PS1 PS2 PS3 Jumper PS4 Jumper All unused power supplies must be jumpered This is a typical installation Individual systems ma...

Page 62: ...de of the tester as viewed from the rear of the Testhead and are dedicated to those slots shown The PSD Power Supply Distribution assembly always occupies Slot 0 while the PSC P S Controller occupies...

Page 63: ...hboard pins are properly aligned with the receptacles on the board When the alignment is correct a slight give will be felt as the pins begin to seat At this point place your thumbs on the white tabs...

Page 64: ...45 designed for this purpose When several contact springs of a single row are out of position straighten them with the alignment comb to attain uniformity Use the comb as follows 1 De energize the sys...

Page 65: ...the range shown If a contact spring is severely bent or bent vertically replacement of the contact spring is recommended Should the bend be minor and in the horizontal lateral plane the contact spring...

Page 66: ...n either side of the slot The latching tab of the spring should be fully depressed inside the tool sleeve Be sure that the tool is held straight in line with the spring Apply steady careful pressure o...

Page 67: ...d then destroy the contact spring immediately To install a new contact spring in the board the following steps are recommended 1 Be sure that you have the proper contact spring right hand or left hand...

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