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Digalog Systems 2040D Series, Руководство по обслуживанию

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Series 2040 Test System

Series 2040 Maintenance 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 shunts #9-10 (Fault/Inhibit Bypass) must be installed.

Содержание 2040D Series

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

Страница 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...

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

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

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

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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