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RF Multiplexer

1. MODULE 00 VXI P1 VXI P2 P500 P501 A CONTROL INTERFACE ASSEMBLY P200 P400 MI RMD3 RMD2 RMD4 RMDO RMD5 RMD MODULE 01 MODULE 02 RELAY ASSEMBLY RELAY ASSEMBLY RELAY ASSEMBLY A2 AS A2 l A EK TITTI TTTT TITTI T BANK 5 BANK 4 BA 3 BANK 5 BANK 4 BA 3 BANK 5 BANK 4 BA 3 RELAY ASSEMBLY RELAY ASSEMBLY RELAY ASSEMBLY A1 A2 A1 1 1 1 TTTTT TTTTT TTTTT TTTTT TTTTT TTTTT TTTTT TTTTT TTTTT BANK 2 BANK 1 BANK O BANK 2 BANK 1 BANK O BANK 2 BANK BANK O Figure 4 1 Multiplexer Expander Simplified Diagram 52 Service Agilent E1472A 73A 74A 75A Service Manual Self test
2. Agilent 75000 SERIES C E1472A 50 Ohm RF Multiplexer E1473A 50 Ohm RF Multiplexer Expander E1474A 75 Ohm RF Multiplexer E1475A 75 Ohm RF Multiplexer Expander Service Manual E Agilent Technologies CopyrightO Agilent Technologies Inc 1996 2006 E1472 90011 Certification Agilent Technologies certifies that this product met its published specifications at the time of shipment from the factory Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology formerly National Bureau of Standards to the extent allowed by that organization s calibration facility and to the calibration facilities of other International Standards Organization members Warranty This Agilent Technologies product is warranted against defects in materials and workmanship for a period of one 1 year from date of shipment Duration and conditions of warranty for this product may be superseded when the product is integrated into becomes a part of other Agilent products During the warranty period Agilent Technologies will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned to a service facility designated by Agilent Technologies Buyer shall prepay shipping charges to Agilent and Agilent shall pay shipping charges to return the product to Buyer However Buyer shall pa
3. Repeat step 2 for channels 01 02 and 03 Move the load to the channel under test Use CLOS ccmmnn and OPEN ccmmnn where cc card number mm module number and nn channel number 4 Repeat for Banks 1 2 3 4 and 5 Repeat steps 2 and 3 for the remaining banks and channels e Connect the Port 1 test cable to the COM port on the Bank being tested Install the appropriate load on each channel as shown in Figure 2 4 500 MHz to 1 3 GHz Repeat Test 2 1 100 MHz to 500 MHz Test with the following changes Measurements e In Step 1 set the START frequency to 500 MHz and the stop freguency to 1 3 GHz Agilent E1472A 73A 74A 75A Service Manual Verification Tests 29 Example This example performs the VSWR Test for the Agilent E1472A E1474A and Agilent E1473A E1475A If a channel fails the VSWR test a message indicating the failing channel number is printed and the program pauses 10 RE SAVE VSWR_72 20 DIM Result1 3 5 Result2 3 5 30 Cc 01 1 Card Number 40 Mm 00 Module Number 50 ASSIGN Mux TO 70915 60 DISP CHR 129 70 CLEAR SCREEN 80 PRINT Select the test to run 90 PRINT Test 1 RF Multiplexer Agilent E1472A or E1474A 100 PRINT Test 2 RF Multiplexer Expander Agilent E1473A or E1475A 110 INPUT Enter the test number 1 or 2 Tst 120 IF Tst 2 THEN 130 Mm 01 140 END IF 150 CLEAR SCREEN 160 PRINT Equipment Setup 170 PRINT 180 PRINT 1 Turn Network Analyzer ON
4. 3 Ship the Multiplexer to Agilent Technologies e Place address label on shipping carton e Send carton to Agilent Technologies Shock Absorbing Material Figure 1 4 Packaging Shipping Guidelines We recommend that you use the same shipping materials as those used in factory packaging available from Agilent Technologies For other commercially available shipping materials use a double wall carton with minimum 2 4 MPa 350 psi test Agilent E1472A 73A 74A 75A Service Manual General Information 17 Environment RF Multiplexer Expander Description NOTE Agilent E1472A E1473A Description The recommended operating environment for the multiplexers expanders is Environment Temperature Humidity Operating 0 C to 55 C lt 95 relative 0 C to 40 C Storage and 40 C to 75 C lt 95 relative 0 C to 40 C Shipment The Agilent E1472A and E1474A RF Multiplexer modules are instruments in the slots of a VXIbus mainframe Each module is assigned an error queue input and output buffers and a status register Instruments are based on the logical addresses of the plug in modules See the Agilent 75000 Series C Installation and Getting Started Guide to set the addresses to create an instrument The Agilent E1472A 50 Ohm RF Multiplexer and the Agilent E1473A 50 Ohm RF Multiplexer Expander are VXI bus C Size register based products The Agilent E1472A RF Multiplexer and the Agilent E1473
5. 50 Ohm Test Cables and Adapters 87530 NETWORK ANALYZER fr rFFrF a C CC ct LI foe LI casi Gerd Feliz de UE E 3 Cr rf f f f 85046B H TERT SEE DM Port 1 O O I zz g SMB Load Type N Male SMB Short i SMB Open 75 ohm A SMB Female lt SMB Feedthrough Figure 2 2 75 Ohm Test Cables and Adapters 26 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Module 00 E1472A or E1474A Module 01 E1473A or E1475A Module 02 E1473A or E1475A Figure 2 3 RF Multiplexer Expander Connections Test 2 1 VSWR This test checks to see if all channels meet the VSWR specification for the Test multiplexer 100 MHz to 500 MHz Measurements 1 Setup and Calibrate the Network Analyzer Turn on the test set and allow at least a one hour warm up period Press the PRESET button Select the SWR measurement type from the FORMAT menu Set the START freguency to 100 MHz and the STOP freguency to 500 MHz e Select the CAL menu Select the 3 5 mm cal kit Agilent E1472A 73A 74A 75A Service Manual Verification Tests 27 NOTE e From the CAL menu sel
6. SMA to SMA cable male male SMA to SMB female female lt SMB LOAD female Agilent PN 1250 0676 SMB SHORT male SMB Feedthrough male male E1474A E1475A 75 Q 75 Q impedance Test Kit contains the following parts Agilent PN E1474 80000 N to SMB cable male female Agilent PN 8120 4482 SMB OPEN male Agilent PN 1250 2354 SMB LOAD female Agilent PN 1250 2343 SMB SHORT male Agilent PN 1250 2358 SMB Feedthrough male male Agilent PN 1250 2337 Digital Multimeter 4 wire ohms Agilent 3458A or 2 wire ohms up to 1 GQ Agilent 34401A F Functional Verification Tests O Operation Verification Tests P Performance Verification Tests T Troubleshooting Test Kit must be ordered as a separate part from Agilent Technologies Agilent E1472A 73A 74A 75A Service Manual General Information 21 22 General Information Agilent E1472A 73A 74A 75A Service Manual Chapter 2 Verification Tests Introduction Test Conditions Procedures Performance Test Record Verification Test Examples The three levels of test procedures described in this chapter are used to verify that the multiplexer or multiplexer expander e is fully functional Functional Verification e meets selected testable specifications Operation Verification e meets all testable specifications Performance Verification See Table 1 1 for test equipment requirements You should complete the Performance
7. 3 1370 NEXT 1380 NEXT K 1390 END Pe rfo rmance Table 2 3 is a form you can copy and use to record performance verification Te st Reco rd test results for the multiplexer expander Information concerning test limits measurement uncertainty and test accuracy ratio TAR is provided below Test Limits Testlimits are defined for VSWR using the specifications in Appendix A of the Agilent EI472A User s Manual or the Agilent E1474A User s Manual The VSWR specifications are single sided i e there is an upper limit but no lower limit In the Performance Test Record the Minimum column is blank Agilent E1472A 73A 74A 75A Service Manual Verification Tests 33 Measurement For the performance verification tests in this manual measurement Uncertai nty uncertainties are calculated based on an Agilent 8753C Network Analyzer used with an Agilent 85046A 50 Ohm S Parameter Test Set for the Agilent E1472A E1473A VSWR Test and an Agilent 85046B 75 Ohm S Parameter Test Set for the Agilent E1474A E1475A VSWR Test The measurement uncertainty shown in Table 2 3 is computed using the 50 and 75 Ohm 3 5 mm connectors and the 3 5 mm CAL kit The calculations follow VSWR Test Assumptions e no change of temperature during the measurements e all calculations are for a one port test all parameters related to port 2 are set to 0 00 e calculations use typical parameters for the 3 5 mm CAL kit as provided in the Agilent 85046C System Performance
8. 3 0 00046 1 250 0 0017 W 3 0 000 0 000 S 0 010 0 00032 0 016 1 250 0 015 0 00032 1 250 0 035 1 250 0 0980 V 0 0980 V 0 0016 0 00172 0 1003 M U Er linear 20 1003 1 250 0 000 20 1003 Measurement Uncertainty 1 3 GHz Measurement Uncertainty is calculated using the values in Table 2 2 as follows Y 0 00032 2 0 00032 1 350 0 00032 1 350 0 0018 Xr 3 0 00046 1 350 20 0019 Wr 3 0 000 0 000 Sr 0 010 0 00032 0 016 1 350 40 015 0 00032 1 350 0 035 1 350 0 1071 V 0 1071 V 0 0019 0 0018 0 1097 M U E linear 20 1097 41 350 0 000 20 1097 Test Accu racy Test Accuracy Ratios are not defined for single sided measurements so all Ratio T AR VSWR measurements have NA Not Applicable in the TAR column 36 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Table 2 3 Performance Test Record Page 1 of 3 Model Report No Date General Information Test Facility Name Report No Address Date Customer City State Tested by Phone Special Notes Test Equipment Used Test Equipment Used Model No Trace No Cal Due Date Description Agilent E1472A 73A 74A 75A Service Manual Verification Tests 37 Table 2 3 Performance Test Record Page 2 of 3 Model Report No Date Test No Descripti
9. 9 15 to match your Multiplexers address setting include lt stdio h gt Hinclude lt sicl h gt define ADDR hpib7 9 15 Address of device main INST id Define id as an instrument char a 256 0 Result variable id iopen ADDR Open instrument session ipromptf id TST n 9 t a Self test command printf n 96s a Print result getchar Pause iclose id Close instrument session Agilent E1472A 73A 74A 75A Service Manual Example C Programs 59 Example The Functional Verification Test for the Agilent E1473A and E1475A RF E xpander Self Test Multiplexer Expanders consists of sending the COPTion query command and checking the response This test can be used to verify that the device is connected properly and is responding to basic commands include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 15 Address of device main INST id Define id as an instrument char a 256 0 Result variable id iopen ADDR Open instrument session ipromptf id SYST COPT 1n t a Self test command printf n s a Print result getchar Pause iclose id Close instrument session 60 Example C Programs Agilent E1472A 73A 74A 75A Service Manual Pe rformance This program is designed to do the Performance Verification Test found in Ve rifi cat i on Chapter 2 Verification
10. A of the Agilent E1472A El473A User s Manual or Agilent E1474A E1475A User s Manual as the performance standards The performance verification test is a test of the VSWR for each channel of the multiplexer This test is sufficient to determine that the multiplexer is operating within specifications This test is suitable for incoming inspection troubleshooting and preventive maintenance Figure 2 1 shows typical test connections cables and adapters required to test the Agilent E1472A E1473A 50 Ohm RF Multiplexer Expander Figure 2 2 shows typical test connections cables and adapters required to test the Agilent E1474A E1475A 75 Ohm RF Multiplexer Expander Figure 2 3 shows the RMD cable connections needed to test either the Agilent E1473A or Agilent E1475A RF Multiplexer Expander Refer to the list of multiplexer expander options in Chapter 1 for RMD cable part numbers Agilent E1472A 73A 74A 75A Service Manual Verification Tests 25 87530 NETWORK ANALYZER i Er A Gi Cr m reece f 85046A S PARAMETER TEST SET Port 1 TTTT n Fr F gt L E E Pata pt ier trea cp EE oven b O SMA to SMB E APC7 to SMA Load 50 ohm i Short SMA to SMA B Feedthrough Figure 2 1
11. Channel 30 1 35 1 097E 1 Channel 31 E 1 097E 1 Channel 32 i 1 097E 1 Channel 33 1 35 1 097E 1 Channel 40 1 35 1 097E 1 Channel 41 1 097E 1 Channel 42 5 1 097E 1 Channel 43 1 35 1 097E 1 Channel 50 1 35 1 097E 1 Channel 51 1 097E 1 Channel 52 1 097E 1 Channel 53 1 35 1 097E 1 Single sided specification Minimum value does not apply Agilent E1472A 73A 74A 75A Service Manual Verification Tests 39 40 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Chapter 3 Replaceable Parts Introduction Replaceable Parts List Exchange Assemblies Ordering Information This chapter contains information for ordering replaceable parts for the Agilent E1472A 74A RF Multiplexers and Agilent E1473A 75A RF Multiplexer Expander modules Table 3 2 through 3 5 list replaceable parts for the multiplexers and expanders Table 3 6 shows reference designators for these parts and Table 3 7 shows the manufacturer code list for these parts Table 3 1 lists assemblies that may be replaced on an exchange basis Exchange assemblies are available only on a trade in basis Defective assemblies must be returned for credit Order assemblies for spare parts stock by the new assembly part number To order a part listed in this chapter specify the Agilent Technologies part number and the quantity required Send the order to your nearest Agilent Technologies Sales and Support
12. E1300 45101 8160 0686 E1473 00201 0515 0368 0515 0375 0515 1135 0515 1375 0515 1968 E1472 00602 E1472 00601 0590 1893 E1472 00603 0590 1459 2190 0124 50 OHM RF MULTIPLEXER EXPANDER ASSEMBLY See Figure 3 2 RELAY PRINTED CIRCUIT ASSEMBLY CABLE INTERCONNECT CONNECTOR POST TYPE 100 PIN SPCG 20 CONTACT CONNECTOR POST TYPE 100 PIN SPCG 60 CONTACT CABLE FLAT RIBBON 28AWG 60 CNDCT GRA JKT NUT HEX DBL CHAM 10 32 THD 067 IN THK HANDLE KIT BOTTOM VXI HANDLE KIT TOP Agilent RFI STRIP FINGERS BE CU TIN PLATED FRONT PANEL SCREW MACHINE M2 5 X 0 45 12MM LG PAN HD SCREW MACHINE M3 X 0 5 16MM LG PAN HD SCREW MACHINE M3 X 0 5 25MM LG FLAT HD SCREW MACHINE M2 5 X 0 45 6MM LG FLAT HD SCREW PH M2 5 X 11 TX SHIELD SHIELD TOP THREADED INSERT C SINK SPCR NO THD SHIELD BOTTOM THREADED INSERT STDF M3 X 0 5 6 MM LG WASHER LOCK INTL T NO 10 195 IN ID 28480 28480 18873 18873 76381 74163 28480 28480 30817 28480 28480 28480 28480 83486 28480 28480 28480 28480 28480 46384 98291 E1472 66502 E1472 61601 66900 220 66900 260 3365 60 500220 E1300 45102 E1300 45101 00786 185 E1473 00201 0515 0368 0515 0375 0515 1135 343 300 02506 0515 1968 E1472 00602 E1472 00601 0590 1893 E1472 00603 SOS 3 5M3 6 3002 26 Agilent E1472A 73A 74A 75A Service Manual Replaceable Parts 43 Reference Designator Agilent Part Number Table 3 4 Agilent E1474A R
13. E1474A The second parameter in the string is the model number of the first installed expander module and the last parameter in the string is the model number of a second installed expander module If no expander modules are installed the string returned will be 474A 0 0 and indicates a failure 24 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Example An example follows which uses an HP 9000 Series 300 computer with BASIC and an multiplexer address of 70915 The multiplexer is assumed to be switch card 1 10 DIM AS 50 20 OUTPUT 70915 SYST COPT 1 Send identify options command 30 ENTER 70915 A Get response 40 PRINT A 50 END Operation Verification The procedures in this section are used to provide a high degree of confidence that the multiplexer expander is meeting published specifications The Operation Verification tests are usually a subset of the Performance Verification tests and are suitable for checkout after performing repairs For the Agilent E1472A E1474A RF Multiplexer modules Operation Verification is performed by completing the VSWR Test as described in the performance verification test procedures Test 2 1 This test is usually sufficient to verify that the instrument is meeting its specifications Performance Verification Making Test Connections The procedures in this section are used to test the multiplexer s electrical performance using the specifications in Appendix
14. Equipment Any equipment that satisfies the requirements given in the table may be substituted To avoid damage to the screw head slots use a T8 Torx driver to remove the front panel handles and a T10 Torx driver to remove the shields Agilent E1472A 73A 74A 75A Service Manual Service 49 Service Aids See Chapter 3 for descriptions and locations of Agilent E1472A 73A 74A 75A mechanical replaceable parts Service notes manual updates and service literature for the modules may be available through Agilent Technologies For information contact your nearest Agilent Technologies Sales and Support Office T rou b les h O oti n g The troubleshooting information and procedures in this section will help Identifying the Problem Problem Type isolate a problem to an assembly Table 4 1 lists some common problems along with symptoms and possible solutions Table 4 1 Agilent E1472A 73A 74A 75A Common Problems Symptom Possible Solutions Self test Errors Non zero error code in response to the TST command Incorrect response to SYST COPT command See Table 4 3 for information on self test errors See Isolating to an Assembly in this chapter Operator Errors Non zero error code in response to the SYST ERR command See Appendix C of the the Agilent E1472A E1473A User s Manual or Agilent E1474A E1475A User s Manual for RF multiplexer errors and causes See Appendix B of the Agilent E
15. Office Agilent E1472A 73A 74A 75A Service Manual Replaceable Parts 41 Table 3 1 Exchange Replaceable Assemblies Model Assembly Exchange PN Replaceable PN Agilent E1472A Al E1472 69501 E1472 66501 E1472 66502 Agilent E1473A E1472 66502 Agilent E1474A A1 E1472 69501 E1472 66501 A2 A3 E1474 66502 Agilent E1475A A1 A2 E1474 66502 RMD Cable 3 to 1 Cable E1472 61601 Table 3 2 Agilent E1472A Replaceable Parts Reference Agilent Part Oty Part Description Mfr Mfr Part Designator Number Code Number 50 OHM RF MULTIPLEXER ASSEMBLY See Figure 3 1 A1 E1472 66501 11 PC ASSEMBLY RF COAX MUX 28480 E1472 66501 F500 F503 2110 0712 4 FUSE SUBMINIATURE 4A 125V NTD AX 75915 R251004T1 A2 A3 E1472 66502 2 RELAY PRINTED CIRCUIT ASSEMBLY 28480 E1472 66502 CBL1 E1472 61601 1 CABLE INTERCONNECT 28480 E1472 61601 1251 7584 3 CONNECTOR POST TYPE 100 PIN SPCG 18873 66900 220 20 CONTACT 1252 1371 1 CONNECTOR POST TYPE 100 PIN SPCG 18873 66900 260 60 CONTACT 8120 2981 1 CABLE FLAT RIBBON 28AWG 60 CNDCT 76381 3365 60 GRA JKT HDW1 HDW30 2950 0078 30 NUT HEX DBL CHAM 10 32 THD 067 IN THK 74163 500220 MNL1 E1472 90001 1 E1472A E1473A USER S MANUAL 28480 E1472 90001 MP1 E1300 45102 1 HANDLE KIT BOTTOM VXI 28480 E1300 45102 MP2 E1300 45101 1 HANDLE KIT TOP Agilent 28480 E 1300 45101 MP3 8160 0686 1 RFI STRIP FINGERS BE CU TIN PLATED 30817 00786 185 MP4 1
16. RF Multiplexer and the Agilent E1475A 75 Ohm RF Multiplexer Expander are identical in operation to the Agilent E1474A E1475A p p p g as E1472A E1473A described earlier in this chapter with the exception of the Description characteristic impedance of the RF channels Inputs and outputs for either module use special 75 Ohm SMB connectors The special connectors and their mating connectors are listed in the Agilent EI474A E1475A RF Multiplexer Expander User s Manual Multiplexer Specifications are listed in Appendix A of the Agilent E1472A E1473A RF Expander Multiplexer RF Multiplexer Expander User s Manual and the Agilent TT A E1474A E1475A RF Multiplexer RF Multiplexer Expander User s Manual Specifications These specifications are the performance standards or limits against which the modules may be tested Mu Itiplexe r Devices covered by this manual are identified by a serial number prefix E xpander listed on the title page Agilent Technologies uses a two part serial number in the form XXXXAY Y Y Y Y where XXXX is the serial prefix A is the Serial Numbers country of origin A USA and Y Y Y Y Y is the serial suffix The serial number prefix identifies a series of identical instruments The serial number suffix is assigned sequentially to each instrument The serial number plate is located on the right hand shield near the backplane connectors Agilent E1472A 73A 74A 75A Service Manual General Information 19 Mu Itiplexe r The fo
17. Table 4 3 shows the self test error codes for the multiplexer modules The Error Codes meaning of each code is given in the right hand column If a self test failure occurs cycle power and repeat the test If the problem reoccurs the device may need repair Table 4 3 Self test Error Codes Description Self test passes Firmware error Bus error communications problem with card Bad ID information in ID register Interrupt expected but not received Busy bit was not held 10 5 to 18 5 msec ss card number with leading zero deleted Procedure 1 Verify that the multiplexer is installed in the mainframe and that the mainframe has passed its power on test 2 Send the TST command to the device see example following 3 The device will return an error code Any non zero error code indicates a self test failure See Table 4 3 for a description of self test error codes Example An example follows which uses an HP 9000 Series 300 computer with BASIC and an multiplexer address of 70915 10 OUTPUT 70915 TST Send the self test command 20 ENTER 70915 A Get response 30 PRINTA 40 END Agilent E1472A 73A 74A 75A Service Manual Service 53 Disassembly Use the following procedures to disassemble the Agilent E1472A E1474A RF Multiplexer or Agilent E1473A E1475A RF Multiplexer Expander module For disassembly refer to Figures 4 2 and 4 3 RF Multiplexer Disassembly 1 To remove the covers Remove all 30 nuts and
18. allow a 1 hour warm up 190 PRINT 2 Install Agilent E1472A or E1474A RF Multiplexer in mainframe 200 IF Tst 2 THEN 210 PRINT 2a Install Agilent E1473A or E1475A Expander 220 END IF 230 PRINT 3 Turn mainframe power ON 240 DISP Press Continue when ready to begin testing 250 PAUSE 260 CLEAR SCREEN 270 PRINT Calibrate the Network Analyzer 280 PRINT 290 PRINT 1 Press PRESET 300 PRINT 2 Select SWR measurement type from the FORMAT menu 310 PRINT 3 Set the START frequency to 100 MHz 320 PRINT 4 Set the STOP frequency to 500 MHz 330 PRINT 5 Select the 3 5 mm CAL kit Ere TN 6 Calibrate the test port and cable for OPEN SHORT and 350 PRINT 7 Set the scale to 100 mV DIV 360 DISP Press Continue when ready to begin testing 370 PAUSE 380 CLEAR SCREEN 30 Verification Tests Agilent E1472A 73A 74A 75A Service Manual 390 OUTPUT Mux RST 400 FORK 0TO5 410 PRINT TABXY 1 1 VSWR from 100 MHz to 500 MHz 420 FORI 0TO3 430 CLEAR SCREEN 440 PRINT TABXY 1 3 1 Connect test port cable to COM VAL K 0 450 PRINT TABXY 1 4 2 Connect LOAD to Channel VAL K VAL 1 460 DISP Press Continue when test connections are complete 470 PAUSE 480 OUTPUT Mux CLOS amp Cc amp Mm amp VAL K amp VAL 1 amp 490 PRINT 500 PRINT Observe the Network Analyzer display 510 PRINT Note the highest measured VSWR reading 520 INPUT Enter measured value Result1 1 K 530 IF Re
19. washers from the RF connectors as shown Remove the eight T10 Torx screws from the top cover as shown Lift the top cover off the module The cover may be a tight fit around the RF Connectors Turn the assembly over and lift off the bottom cover The cover may be a tight fit around the RF Connectors 2 To remove the A2 and A3 Assemblies Remove the 3 to 1 cable from the A1 A2 and A3 assemblies Remove the three T10 Torx screws from the relay assembly PC board as shown Lift the top Relay Assembly out Lift the shield out as shown Lift the bottom Relay Assembly out 3 To remove the front panel Remove the two T8 Torx screws from handles MP1 and MP2 as shown Remove the two T8 Torx screws holding the panel to the Al PC Assembly as shown Lift the front panel from the A1 assembly 54 Service Agilent E1472A 73A 74A 75A Service Manual Bottom Cover Al gt 0 0006 Ol 2 T8 Torx ls 30 Washer P di M 30 Nut a De SHIELD 00000 00800 0 9 ooo oooO So 0000 ES 3 T10 Torx m o Top Cover VIVI VUVYVU UVVV Figure 4 2 Agilent E1472A E1474A Disassembly Agilent E1472A 73A 74A 75A Service Manual Service 55 RF Multiplexer Expander Disassembly 1 To remove the covers e Remove all 30 nuts and wash
20. 1405 User s Manual for additional information on operator errors Catastrophic Failures Not responding to commands Failing Functional Verification Test Chapter 2 Check logical address setting Check GPIB cables and connections Check RMD cables and connectors Performance Out of Specification Failing VSWR Test see Test 2 1 in Chapter 2 Check user wiring and test connections If channels are near or above the test limit replace the printed circuit board Agilent PN E1472 66502 or E1474 66502 50 Service Agilent E1472A 73A 74A 75A Service Manual Testing the Assembly You can use the tests and checks in Table 4 2 to isolate the problem See Figures 3 1 and 3 2 in Chapter 3 for locations of mechanical parts Table 4 2 Agilent E1472A 73A 74A 75A Tests Checks Test Check Reference Designator Check Heat Damage Discolored PC boards Damaged insulation Evidence of arcing Switch Jumper J100 J101 IRQ Level setting Settings SP1 LADDR setting J200 Relay Drive Level RF Multiplexer F501 F502 F503 F504 Fuse continuity PCA P200 P400 P500 P501 Connector contacts Relay Assembly P1 Connector Contacts PCA A2 A3 Test 2 1 VSWR Test Checking for Heat Damage Inspect the assembly for signs of abnormal internally generated heat such as discolored printed circuit boards or components damaged insulation or evidence of arcing Checking Switches Jumper
21. 22 28 el a P ede be as 57 Soldering Printed Circuit Boards o oo LL Le 57 Post Repair Safety Checks 2 KKK 57 Appendix A Verification Tests C Programs Functional Verification Tests ses 59 Example Multiplexer Self Test 59 Example Expander Self Test o o o o ooo e 60 Performance Verification Test o e ee 61 Example VSWR Test o e LL 61 10 Agilent E1472A 73A 74A 75A Service Manual Chapter 1 General Information ntrod u ct ION This manual contains information required to test troubleshoot and repair the Agilent E1472A 50 Ohm RF Multiplexer the Agilent 1473A 50 Ohm RF Multiplexer Expander the Agilent E1474A 75 Ohm RF Multiplexer and the Agilent E1475A 75 Ohm RF Multiplexer Expander see Figures 1 1 and 1 2 S Sa DI D 38 52 J so A p 23 go OS lt g Figure 1 1 Agilent E1472A E1474A RF Multiplexers Agilent E1472A 73A 74A 75A Service Manual General Information 11 S Y NS Figure 1 2 Agilent E1473A E1475A RF Multiplexer Expanders Relay Life Electromechanical relays are subject to normal wear out Relay life depends on several factors The effects of loading and switching freguency are briefly discussed below Relay Load In general higher power switching reduces relay life In addition capacitive inductive lo
22. 23 Performance Test Record 0 LL LL 23 Verification Test Examples LL 23 Multiplexer Functional Verification ss LL LL Le 24 Procedure ii ie 22 eus el AE DE exu Ed SS 24 Example ceo iae Eee ee 24 Expander Functional Verification Ke 24 Procedure 28 du esent DE James CR AT Ie E ni amp 24 Example x sr 2 0 ES VD d A Se gat e s 25 Operation Verification e 25 Performance Verification 25 Making Test Connections ee 25 T st2 1 VSWR Test xo ese Pie ea Ed a S 27 Agilent E1472A 73A 74A 75A Service Manual Performance Test Record KKK LL LL LL LL LL LL LL 33 TESIS c 2 os du nali t Ar der tU regen im e e aa 33 Measurement Uncertainty 2 2 Le 34 Test Accuracy Ratio TAR o ee 36 Chapter 3 Replaceable Parts Introductio ma ds ET eem RAIL 41 Replaceable Parts List 41 Exchange Assemblies i aa wen aan a dre ee 41 Ordering Information LL 41 Chapter 4 Service Introduction uode a e o rale E IE M 49 RepamStratesy ar a dl AA Rr Rc BTM 49 Eguipment Reguired 21b Pa DE AA 49 Service Adds a eta SE n RCR RR ER HON Get Ran ba Kod Sa 50 Trouble shooting ii a cde ba ad en al eee ee 50 Identifying the Problem LL 50 Testing the Assembly 2 12 eu STA a a DR Ead Eo ES 51 Isolating to an Assembly LL Le 52 Self test Error Codes si ud assa a Aa 53 Disassenibly aa Ber A A qu ET A 54 Repair Maintenance Guidelines 57 ESD Precautions 24 40
23. 400 0482 1 CABLE TIE 062 3 DIA 14 WD NYLON 59730 TY 26M 8 PNL1 E1472 00201 1 FRONT PANEL 28480 E1472 00201 SCR1 SCR2 0515 0368 SCR3 SCR5 0515 0664 SCR6 SCR13 0515 1135 SCR14 SCR17 0515 1375 SCR18 SCR19 0515 1968 SCREW MACHINE M2 5 X 0 45 12MM LG PAN HD 28480 0515 0368 SCREW MACHINE M3 X 0 5 12MM LG PAN HD 28480 0515 0664 SCREW MACHINE M3 X 0 5 25MM LG FLAT HD 28480 0515 1135 SCREW MACHINE M2 5 X 0 45 6MM LG FLAT HD 83486 343 300 02506 SCREW PH M2 5 X 11 TX 28480 0515 1968 N a o O N 42 Replaceable Parts Agilent E1472A 73A 74A 75A Service Manual Reference Designator Agilent Part Number Part Description Table 3 2 Agilent E1472A Replaceable Parts Continued Mfr Part Number SHD1 SHD2 SHD3 WSH1 WSH30 Reference Designator E1472 00601 0590 1893 E1472 00602 E1472 00603 0590 1459 2190 0124 Agilent Part Number SHIELD TOP THREADED INSERT C SINK SPCR NO THD SHIELD SHIELD BOTTOM THREADED INSERT STDF M3 X 0 5 6 MM LG WASHER LOCK INTL T NO 10 195 IN ID Table 3 3 Agilent E1473A Replaceable Parts Part Description Mfr Code E1472 00601 0590 1893 E1472 00602 E1472 00603 SOS 3 5M3 6 3002 26 Mfr Part Number HDW1 HDW30 MP1 MP2 MP3 PNL1 SCR1 SCR2 SCR3 SCR7 SCR8 SCR10 SCR11 SCR12 SCR13 SCR14 SHD1 SHD2 SHD3 WSH1 WSH30 E1472 66502 E1472 61601 1251 7584 1252 1371 8120 2981 2950 0078 E1300 45102
24. 80 28480 30817 59730 28480 28480 28480 28480 83486 28480 28480 28480 28480 28480 46384 98291 E1472 66501 R251004T1 E1474 66502 E1472 61601 66900 220 66900 260 3365 60 500220 E1474 90001 E1300 45102 E1300 45101 00786 185 TY 26M 8 E1474 00201 0515 0368 0515 0664 0515 1135 343 300 02506 0515 1968 E1474 00601 0590 1893 E1472 00602 E1472 00603 SOS 3 5M3 6 3002 26 44 Replaceable Parts Agilent E1472A 73A 74A 75A Service Manual Reference Designator Agilent Part Number Table 3 5 Agilent E1475A Replaceable Parts Part Description Mrr Part Number HDW1 HDW30 MP1 MP2 MP3 PNL1 SCR1 SCR2 SCR3 SCR7 SCR8 SCR10 SCR11 SCR12 SCR13 SCR14 SHD1 SHD2 SHD3 WSH1 WSH30 E1474 66502 E1472 61601 1251 7584 1252 1371 8120 2981 2950 0078 E1300 45102 E1300 45101 8160 0686 E1475 00201 0515 0368 0515 0375 0515 1135 0515 1375 0515 1968 E1472 00602 E1475 00601 0590 1893 E1473 00603 0590 1367 0590 1459 2190 0124 75 OHM RF MULTIPLEXER EXPANDER ASSEMBLY See Figure 3 2 PC ASSEMBLY 75 OHM MULTIPLEXER CABLE INTERCONNECT CONNECTOR POST TYPE 100 PIN SPCG 20 CONTACT CONNECTOR POST TYPE 100 PIN SPCG 60 CONTACT CABLE FLAT RIBBON 28AWG 60 CNDCT GRA JKT NUT HEX DBL CHAM 10 32 THD 067 IN THK HANDLE KIT BOTTOM VXI HANDLE KIT TOP Agilent RFI STRIP FINGERS BE CU TIN PLATED FRONT PANEL SCREW MACHINE M2 5 X 0 45 12MM LG PAN HD
25. A RF Multiplexer Expander each provide six banks of 4 1 switching Inputs and outputs for either module use 50 Ohm SMB connectors The multiplexer and each multiplexer expander consists of six banks of channels bank O through bank 5 to form six 4 1 multiplexers Each channel in a bank is connected to COM when the channel is CLOSed Following power on power off or a card reset the first channel in each bank is connected to COM Channel numbering is in the form bc where D is the bank number from 0 to 5 and c is the channel number from O to 3 For example following a card reset channel 20 is closed that is channel O in bank 2 is connected to COM 20 The Agilent E1472A RF Multiplexer can control up to two additional expander modules for up to eighteen banks of 4 1 switching The expander modules can be either the Agilent E1473A 50 Ohm RF Multiplexer Expander module or the Agilent E1475A 75 Ohm RF Multiplexer Expander module 18 General Information Agilent E1472A 73A 74A 75A Service Manual The Agilent E1473A RF Multiplexer Expander Module can be inserted in a C Size VXI bus mainframe next to the multiplexer or can be located up to eight meters away from the multiplexer using remote expander cables Locating the expander module close to the external device keeps connecting cable lengths to a minimum thereby reducing the possibility of cross talk and insertion loss of high freguency signals Agilent The Agilent E1474A 75 Ohm
26. BXY 1 1 VSWR from 500 MHz to 1 3 GHz FORI 0TO3 CLEAR SCREEN PRINT TABXY 1 3 1 Connect test port cable to COM VAL K 0 970 PRINT TABXY 1 4 2 Connect LOAD to Channel VAL K VALS 1 980 990 1000 1010 1020 1030 1040 1050 1060 1070 1080 1090 1100 1110 1120 1130 1140 1150 1160 1170 1180 1190 DISP Press Continue when test connections are complete PAUSE OUTPUT Mux CLOS amp Cc amp Mm amp VAL K amp VAL 1 amp PRINT PRINT Observe the Network Analyzer display PRINT Note the highest measured VSWR reading INPUT Enter measured value Result1 1 K IF Result1 l K gt 1 35 THEN PRINT PRINT Channel amp VAL K amp VAL amp FAILED VSWR gt 1 35 PRINT Press Continue to test the next channel PAUSE CLEAR SCREEN END IF NEXT I NEXT K OUTPUT Mux RST CLEAR SCREEN PRINT 500 MHz to 1 3 GHz VSWR test complete DISP Press Continue to display measurement results PAUSE CLEAR SCREEN 32 Verification Tests Agilent E1472A 73A 74A 75A Service Manual 1200 1210 Print Measurement Results 1220 1230 PRINT 100 MHz to 500 MHz 1240 PRINT 1250 Format IMAGE 2 Channel D D VSWR D DDD 5X 1260 FORK 0T02 1270 FORI 0TO3 1280 PRINT USING Format K l Result1 1 K K 3 1 Result1 l K 3 1290 NEXT 1300 NEXT R 1310 PRINT 1320 PRINT 500 MHz to 1 3 GHz 1330 PRINT 1340 FORK 0T02 1350 FORI 0TO3 1360 PRINT USING Format K l Result2 1 K K 3 1 Result2 l K
27. IEC 61000 4 11 1994 EN 61000 4 11 1994 I cycle 100 Canada ICES 001 1998 Australia New Zealand AS NZS 2064 1 Safety IEC 61010 1 1990 A1 1992 A2 1995 EN 61010 1 1993 A2 1995 Canada CSA C22 2 No 1010 1 1992 UL 3111 1 1994 Supplemental Information l I The product was tested in a typical configuration with Agilent Technologies test systems September 5 2000 Wien Na Date Ouality Manager Title For further information please contact your local Agilent Technologies sales office agent or distributor Authorized EU representative Agilent Technologies Deutschland GmbH Herrenberger StraBe 130 D 71034 B blingen Germany 4 Agilent E1472A 73A 74A 75A 50W 75W RF Multiplexers Expanders Module Service Manual Agilent 75000 Series C Service Documentation Suggested Sequence to Use Manuals Installation and Getting Started Guide Instrument Applications Using the Command Module Plug in Module Mainframe Command Module User s Manuals User s Manual User s Manual Repairing the Command Module Plug in Module Command Module Service Manuals Service Manual Manual Descriptions Series C Installation and Getting Started Guide This manual contains step by step instructions for all aspects of plug in module mainframe and command module installation This guide also contains introductory programming information and examples Command Module User s Manual This manual contains programming
28. INEERING amp MFG CORP WILMINGTON DE US 19801 PALO ALTO CA US 94304 DEL WATER GAP PA US 118327 DOYLESTOWN PA US 18901 RARITAN NJ US 08869 NEW YORK NY US 10022 DES PLAINES IL US 60016 ST PAUL MN US 55144 ROCRFORD IL US 61125 TRUMBULL CT US 06611 46 Replaceable Parts Agilent E1472A 73A 74A 75A Service Manual F501 MP3 SCR18 SCR19 lac pent PNL1 SCR1 SCR2 J Re F502 SCR6 SCR13 Nx g LA MP2 8 N we y i Q y p y x d S ea AS ps WSH1 WSH30 e y y z A Q zT S 9 y S AS amp a ts S Ya SCR3 SCR5 HDW1 HDW30 NN 2 N al P ON E N gt oe A lt oF R J R R N SCR14 SCR17 N MP1 A N Figure 3 1 Agilent E1472A amp E1474A Replaceable Parts Agilent E1472A 73A 74A 75A Service Manual Replaceable Parts 47 SHD3 MP3 SCR13 SCR14 d N K A PNL1 I 2 a SCR1 SCR2 y N MP2 Ver N lt SLI N P US see a A OF N QS V amp 2 S ME AS C L S QE JN PIIN WSH1 WSH30 S g id SA SEL N la SAO S AR HBO P d a I 7 LI _ Q S Q N N A De Howi Howso fo 9 Se Rey N Pag a E dI si SHD2 dera SCR11 SCR12 MP1 Figure 3 2 Agilent E1473A 8 E1475A Replaceable Parts 48 Replaceable P
29. Manual and shown in Table 2 2 34 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Table 2 2 Parameters used in Measurement Uncertainty Equations Error Term Linear Value Linear Value 500 MHz O 1 3 GHz Directivity 0 010 0 010 Reflection Tracking 0 016 0 016 Source Match 0 015 0 015 Dynamic Accuracy Magnitude 0 035 0 035 S11 1 250 1 350 Noise Floor 0 000 0 000 High Level Noise 0 00046 0 00046 Connector Reflection Repeatability 0 00032 0 00032 Connector Transmission Repeatability 0 00032 0 00032 Magnitude drift due to temperature 0 000 0 000 Cable Reflection Stability 0 00032 0 00032 Worst case Reference Power Level 0 dbm S11 is a measured value not an error term The measurement uncertainty is calculated using the maximum VSWR specification as the S11 term Measurement Uncertainty Equations Used Y random port 1 repeatability Ra 2 Ra S11 RA S11 Xr random high level noise 3 Nh S11 Wr random low evel noise 3 Nj S systematic error D 4 Sa Tr S11 Ms Sr1 S11 Am S11 V2 S NW x Y Er linear reflection uncertainty magnitude Vr 11 Tra magnitude Agilent E1472A 73A 74A 75A Service Manual Verification Tests 35 Measurement Uncertainty 500 MHz Measurement Uncertainty is calculated using the values in Table 2 2 as follows Yr 0 00032 2 0 00032 1 250 0 00032 1 250 0 0016 Xr
30. ORT OR ANY OTHER LEGAL THEORY Notice The information contained in this document is subject to change without notice Agilent Technologies MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Agilent shall not be liable for errors contained herein or for incidental or conseguential damages in connection with the furnishing performance or use of this material This document contains proprietary information which is protected by copyright Allrights are reserved No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Agilent Technologies Inc Agilent assumes no responsibility for the use or reliability of its software on eguipment that is not furnished by Agilent U S Government Restricted Rights The Software and Documentation have been developed entirely at private expense They are delivered and licensed as commercial computer software as defined in DFARS 252 227 7013 Oct 1988 DFARS 252 211 7015 May 1991 or DFARS 252 227 7014 Jun 1995 asa commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 Jun 1987 or any eguivalent agency regulation or contract clause whichever is applicable You have only those rights provided for such Software and Documentation by the applicable FAR or DFARS clause
31. SCREW MACHINE M3 X 0 5 16MM LG PAN HD SCREW MACHINE M3 X 0 5 25MM LG FLAT HD SCREW MACHINE M2 5 X 0 45 6MM LG FLAT HD SCREW PH M2 5 X 11 TX SHIELD SHIELD TOP THREADED INSERT C SINK SPCR NO THD SHIELD BOTTOM THREADED INSERT STDF M3 X 0 5 10 MM LG THREADED INSERT STDF M3 X 0 5 6 MM LG WASHER LOCK INTL T NO 10 195 IN ID 28480 28480 18873 18873 76381 74163 28480 28480 30817 28480 28480 28480 28480 83486 28480 28480 28480 28480 28480 46384 46384 98291 E1474 66502 E1472 61601 66900 220 66900 260 3365 60 500220 E1300 45102 E1300 45101 00786 185 E1475 00201 0515 0368 0515 0375 0515 1135 343 300 02506 0515 1968 E1472 00602 E1475 00601 0590 1893 E1473 00603 SOS 3 5M3 10 SOS 3 5M3 6 3002 26 Agilent E1472A 73A 74A 75A Service Manual Replaceable Parts 45 Table 3 6 Agilent E1472A 73A 74A 75A Reference Designators Reference Designators assembly bracket electrical connector jack jumper mechanical part electrical connector plug resistor pack thermistor probe terminal block integrated circuit Table 3 7 Agilent E1372A 73A 74A 75A Code List of Manufacturers Manufacturer s Name Manufacturer s Zip Address Code AGILENT TECHNOLOGIES CORPORATE THOMAS amp BETTS CORP PHELPS DODGE CORP LITTELFUSE INC 3M CO ELCO INDUSTRIES INC ITT SEALECTRO CORP DUPONT E DE NEMOURS amp CO INSTRUMENT SPECIALTIES CO INC PENN ENG
32. Tests Test NOTE This program assumes a primary address of 09 and a secondary address of 15 If your Multiplexer address does not match this you must either change the Multiplexers address setting or change the program lines define ADDR hpib7 9 15 to match your Multiplexers address setting Example VSWR This example performs a VSWR Test on all channels in the RF Multiplexer ple p P Test fa channel is out of specification the program prints a message and pauses VSWR Test E1366A include lt stdio h gt include lt sicl h gt define ADDR hpib7 9 15 Address of device void main void INST id dm Define id and dm as an instrument double result 4 12 int i k Mm tst iif defined BORLANDC amp amp Idefined VVIN32 _InitEasyWin endif ionerror I ERROR_EXIT id iopen ADDR Open instrument session RETRY printf n nSelect the test to run printf n n Test 1 RF Multiplexer Agilent E1472A or E1474A printf n Test 2 RF Multiplexer Expander Agilent E1473A or E1475A printf nEnter the test number 1 or 2 scanf u tst if tst 1 Mm 0 if tst 2 Mm 1 if tst 1 amp amp tst 2 goto RETRY printf n nEquipment Setup Agilent E1472A 73A 74A 75A Service Manual Example C Programs 61 printf nin 1 Turn Network Analyzer power ON allow a one hour warm up printf An 2 Install Agilent E1472A or E1474A Component Ass
33. Verification tests at least once a year For heavy use or severe operating environments perform the tests more often The verification tests assume that the person performing the tests understands how to operate the mainframe the multiplexer expander and specified test equipment The test procedures do not specify equipment settings for test equipment except in general terms It is assumed that a qualified service trained technician will select and connect the cables adapters and probes required for the test It is assumed that the temperature is no greater than 25 C and the relative humidity is no greater than 40 The results of each Performance Verification test may be recorded in the Performance Test Record Table 2 3 Each verification test procedure includes an example program that performs the test All example programs assume the following Controller is an HP 9000 Series 200 300 computer Programming language is BASIC Switch address is 70915 o o o e Switch card number is 1 Agilent E1472A 73A 74A 75A Service Manual Verification Tests 23 Multiplexer Functional Verification Procedure Example The Functional Verification Test for the Agilent E1472A E1474A multiplexers consists of sending the TST command and checking the response This test can be used to verify that the device is connected properly and is responding to basic commands 1 Verify that the multiplexer is installed in the mainframe and tha
34. ads and high inrush currents e g when turning on a lamp or motor reduce relay life Exceeding the specified maximum inputs can cause catastrophic failure Switching Freguency Relay contacts heat up when switched As the switching freguency increases the contacts have less time to dissipate heat The resulting increase in contact temperature reduces relay life 12 General Information Agilent E1472A 73A 74A 75A Service Manual End of Life A preventive maintenance routine can prevent problems caused by Detection unexpected relay failure The end of the life of a relay can be determined using one or more of the three methods described below The best method or combination of methods as well as the failure criteria depends on the application in which the relay is used Contact Resistance As the relay begins to wear out its contact resistance will increase When the resistance exceeds a pre determined value the relay should be replaced Typically a relay should be replaced when the contact resistance exceeds 1 0 Ohm Stability of Contact Resistance The stability of the contact resistance decreases with age Using this method the contact resistance is measured several 5 10 times and the variance of the measurements is determined An increase in the variance indicates deteriorating performance Number of Operations Alternatively relays can be replaced after a predetermined number of contact closures However this method regui
35. arts Agilent E1472A 73A 74A 75A Service Manual Chapter 4 Service i n t rod u cti on This chapter contains service information for the Agilent E1472A 73A 74A 75A RF Multiplexer Expander modules including repair strategy troubleshooting techniques and repair maintenance guidelines WARNING Do not perform any of the service procedures shown unless you are a qualified service trained technician and have read the WARNINGS and CAUTIONS in Chapter 1 Repai r St rategy Procedures in this chapter describe troubleshooting technigues for the Agilent E1472A E1474A RF Multiplexers and Agilent E1473A E1475A RF Multiplexer Expanders The VXI interface relay decoders and relay drivers are all contained on a single PC board in the Agilent E1472A or Agilent E1474A RF Multiplexer This PC board should be replaced as an exchange assembly Exchange assembly part numbers are contained in Chapter 3 Replaceable Parts The multiplexer relays tree relays and their associated RF connectors are contained on separate PC boards The Relay Assembly PC board Agilent PN E1472 66502 or E1474 66502 is available only as a replaceable part not an exchange assembly Each Relay Assembly PC Board contains three banks of channels Two complete Relay Assembly PC Boards are contained in each Agilent E1472A E1473A E1474A E1475A module Egu ipment Eguipment reguired for multiplexer expander troubleshooting and repair is Regu ired listed in Table 1 1 Recommended Test
36. e printf n Press ENTER for 500 MHz to 1 3 GHz test getchar 62 Example C Programs Agilent E1472A 73A 74A 75A Service Manual printf n nEquipment Setup printf n n 1 Turn Network Analyzer power ON allow a one hour warm up printf n 2 Install Agilent E1472A or E1474A Component Assembly into Mainframe if tst 2 printf An 2a Install Agilent E1473A or E1475A Expander printf n 3 Turn Mainframe power ON printf n 4 Press ENTER when ready to begin testing getchar printf n nCalibrate the Network Analyzer printf m 1 Press PRESET printf n 2 Select SWR measurement type from FORMAT menu printf n 3 Set the START frequency to 500 MHZ printf n 4 Set the STOP frequency to 1 3 GHz printf n 5 Select the 3 5 mm CAL kit printf n 6 Calibrate the test port and cable for OPEN SHORT and LOAD printf An 7 Set the scale to 100 mV DIV printf in 8 Press ENTER when ready to begin testing getchar iprintf id RST n for k 0 k lt 5 k printf n nVSWR from 500 MHz to 1 3 GHz for i 0 i lt 3 i printf nin 1 Connect test port cable to COM u0 k printf n 2 Connect LOAD to channel u u k i printf n 3 Press ENTER when connections are complete getchar iprintf id CLOS 10 u u u n Mm k i printf n nObserve the Network Analyzer display printf n Enter the highest
37. ect a single port measurement typically port S11 Calibrate the port for OPEN SHORT and LOAD using the appropriate test connectors on the cable that will be used for the test refer to Table 1 1 Press DONE when the Network Analyzer indicates it is calibrated and ready for a measurement Set an appropriate scale per division to measure the VSWR typically 100 mV DIV The connectors cables adapters loads and shorts used to calibrate the Network Analyzer must be the same connectors cables adapters and loads used in the VSWR tests 2 Measure Bank 0 VSWR Turn mainframe power ON Send RST to multiplexer Connect the Port 1 test cable to the COM 00 port on the multiplexer expander as shown in Figure 2 4 Install the appropriate load on Channel 00 as shown in Figure 2 4 Send CLOS ccmm00 to close chan 00 where cc card number and mm module number Observe the Network Analyzer response Select marker search for MAX or manually locate the maximum value indicated and record the measurement VSWR in Table 2 3 for Channel 00 Send OPEN ccmm00 to open chan 00 where cc card number and mm module number 28 Verification Tests Agilent E1472A 73A 74A 75A Service Manual 87530 NETWORK ANALYZER COTTA rr FRI CONTA Poa AA 85046 S PARAMETER TEST SET Port 1 Figure 2 4 Channel 00 VSWR Test Connections 3 Repeat for Channels 01 02 and 03
38. embly into Mainframe if tst 2 printf An 2a Install Agilent E1473A or E1475A Expander printf n 3 Turn Mainframe power ON printf n 4 Press ENTER when ready to begin testing getchar printf n nCalibrate the Network Analyzer printf nin 1 Press PRESET printf n 2 Select SWR measurement type from FORMAT menu printf n 3 Set the START frequency to 100 MHz printf n 4 Set the STOP frequency to 500 MHz printf n 5 Select the 3 5 mm CAL kit printf n 6 Calibrate the test port and cable for OPEN SHORT and LOAD printf An 7 Set the scale to 100 mV DIV printf in 8 Press ENTER when ready to begin testing getchar iprintf id RST n for k 0 k lt 5 k printf n nVSWAR from 100 MHz to 500 MHz for i 0 i lt 3 i printf nin 1 Connect test port cable to COM u0 k printf n 2 Connect LOAD to channel u u k i printf n 3 Press ENTER when connections are complete getchar iprintf id CLOS 10 u u u n Mm k i printf n nObserve the Network Analyzer display printf n Enter the highest measured VSWR reading scanf lf amp result i k iprintf id OPEN 10 u u u n Mm k i if result i k gt 1 25 printf n n Channel u u FAILED VSWR 1 25 k i printf in Press ENTER to test next channel getchar printf n n100 MHz to 500 MHz VSWR Test complet
39. eplaceable Parts Part Description Mfr Part Number A1 F500 F503 A2 A3 CBL1 HDW1 HDW30 MNL1 MP1 MP2 MP3 MP4 PNL1 SCR1 SCR2 SCR3 SCR5 SCR6 SCR13 SCR14 SCR17 SCR18 SCR19 SHD1 SHD2 SHD3 WSH1 WSH30 E1472 66501 2110 0712 E1474 66502 E1472 61601 1251 7584 1252 1371 8120 2981 2950 0078 E1474 90001 E1300 45102 E1300 45101 8160 0686 1400 0482 E1474 00201 0515 0368 0515 0664 0515 1135 0515 1375 0515 1968 E1474 00601 0590 1893 E1472 00602 E1472 00603 0590 1459 2190 0124 75 OHM RF MULTIPLEXER ASSEMBLY See Figure 3 1 PC ASSEMBLY RF COAX MUX FUSE SUBMINIATURE 4A 125V NTD AX PC ASSEMBLY 75 OHM MULTIPLEXER CABLE INTERCONNECT CONNECTOR POST TYPE 100 PIN SPCG 20 CONTACT CONNECTOR POST TYPE 100 PIN SPCG 60 CONTACT CABLE FLAT RIBBON 28AWG 60 CNDCT GRA JKT NUT HEX DBL CHAM 10 32 THD 067 IN THK E1474A E1475A USER S MANUAL HANDLE KIT BOTTOM VXI HANDLE KIT TOP Agilent RFI STRIP FINGERS BE CU TIN PLATED CABLE TIE 062 3 DIA 14 WD NYLON FRONT PANEL SCREW MACHINE M2 5 X 0 45 12MM LG PAN HD SCREW MACHINE M3 X 0 5 12MM LG PAN HD SCREW MACHINE M3 X 0 5 25MM LG FLAT HD SCREW MACHINE M2 5 X 0 45 6MM LG FLAT HD SCREW PH M2 5 X 11 TX SHIELD TOP THREADED INSERT C SINK SPCR NO THD SHIELD SHIELD BOTTOM THREADED INSERT STDF M3 X 0 5 6 MM LG WASHER LOCK INTL T NO 10 195 IN ID 28480 75915 28480 28480 18873 18873 76381 74163 28480 284
40. ers from the RF connectors as shown e Remove the three T10 Torx screws from the top cover as shown e Lift the top cover off of the module The cover may be a tight fit around the RF Connectors e Turn the assembly over and lift off the bottom cover The cover may be a tight fit around the RF Connectors 2 Toremove the A1 and A2 Assemblies e Remove the three T10 Torx screws from the relay assembly PC board as shown e Lift the top Relay Assembly out e Lift the shield out as shown e Lift the bottom Relay Assembly out Bottom Cover S Panel S S S ne B N S y y 8 JK N o N e Q 30 Washer 8 d y S fr N a S 1 S Aa S Shield y lt y 9 N p Q ail 1 b o I S N 30 Nut ME S a S gt KS Reg Top Cover Figure 4 3 Agilent E1473A E1475A Disassembly 56 Service Agilent E1472A 73A 74A 75A Service Manual Repair Maintenance Guidelines ESD Precautions Soldering Printed Circuit Boards Post Repair Safety Checks This section provides guidelines for repairing and maintaining the Agilent E1472A 73A 74A 75A RF Multiplexer Expander modules including e ESD precautions e Soldering printed circuit boards e Post repair safety checks Electrostatic discharge ESD may damage static sensitive devices in the multiplexer expander modu
41. he user must refer to the man AV Alternating current AC ual for specific WARNING or CAUTION information to avoid personal injury or dam age to the product Direct current DC AN Indicates hazardous voltages Indicates the field wiring terminal that must _ be connected to earth ground before operating the equipment protects against electrical Calls attention to a procedure practice or con shock in case of fault WARNING dition that could cause bodily injury or death N N I Calls attention to a procedure practice or con or Frame or chassis ground terminal typically CAUTION dition that could possibly cause damage to connects to the eguipment s metal frame eguipment or permanent loss of data WARNINGS The following general safety precautions must be observed during all phases of operation service and repair of this product Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the product Agilent Technologies assumes no liability for the customer s failure to comply with these requirements Ground the equipment For Safety Class 1 equipment equipment having a protective earth terminal an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable DO NOT operate the product in an explosive atmosphere or in the prese
42. hen installed in the mainframe The instrument mainframe and all related documentation should be reviewed for familiarization with safety markings and instructions before operation or service Refer to the WARNINGS page page 2 in this manual for a summary of safety information Safety information for testing and service follows and is also found throughout this manual This section contains WARNINGS which must be followed for your protection and CAUTIONS which must be followed to avoid damage to the eguipment when performing instrument maintenance or repair SERVICE TRAINED PERSONNEL ONLY The information in this manual is for service trained personnel who are familiar with electronic circuitry and are aware of the hazards involved To avoid personal injury or damage to the instrument do not perform procedures in this manual or do any servicing unless you are gualified to do so CHECK MAINFRAME POWER SETTINGS Before applying power verify that the mainframe setting matches the line voltage and that the correct fuse is installed An uninterruptible safety earth ground must be provided from the main power source to the supplied power cord set GROUNDING REOUIREMENTS Interruption of the protective grounding conductor inside or outside the mainframe or disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal injury Grounding one conductor of a two conductor outlet is not sufficie
43. ilent E1472A E1473A E1474A E1475A RF Multiplexers Expanders order Agilent part number E1472 90033 This CLIP contains component locators schematic diagrams and detailed parts lists 20 General Information Agilent E1472A 73A 74A 75A Service Manual Reco mmen d ed Table 1 1 lists the test eguipment recommended for testing and servicing the 7 module Essential requirements for each piece of test equipment are Test Eq ul pment described in the Requirements column Other equipment may be substituted as long as it meets the requirements shown in the Requirements column Table 1 1 Recommended Test Equipment Instrument Requirements Recommended Model Controller GPIB GPIB compatibility as defined by IEEE Standard HP 9000 Series 300 488 1988 and the identical ANSI Standard or MC1 1 SH1 AH1 T2 TEO L2 LEO SRO IBM Compatible PC with RLO PPO DCO DTO and C1 2 3 BASIC 4 5 Mainframe Compatible with multiplexer expander E1401B T or E1421B requires E1405A B or E1406A Command Module Compatible with multiplexer expander E1405A B or E1406A Network Analyzer VSWR from 10 MHZ to 3 GHz Agilent 8753C S Parameter Test Set Compatible with Agilent 8753C single port Agilent 85046A for Agilent 50 Q for Agilent E1472A E1473A E1472A E1473A 75 Q for Agilent E1474A E1475A or Agilent 85046B for Agilent E1474A 1475A Adapters and Cables E1472A E1473A 50 Q 50 Q impedance APC 7 to SMA female Agilent PN 11534A
44. information for the Command Module and general programming information for instruments installed in the mainframe Mainframe User s Manual This manual contains installation information to prepare the mainframe for use and shows how to install plug in modules Plug In Module User s Manuals These manuals contain plug in module programming and configuration information Fach manual contains programming examples and a complete SCPI command reference for the plug in module Plug In Module Service Manuals These manuals contain plug in module service information Each manual contains information for exchanging the module and or ordering replaceable parts Depending on the module information and procedures for functional verification operation verification performance verification adjustment troubleshooting and repair are also provided Agilent E1472A 73A 74A 75A Service Manual What s in this Manual Manual Overview This manual shows how to service the Agilent E1472A E1474A RF Multiplexers and the Agilent E1473A E1475A RF Multiplexer Expanders Consult the Agilent E1472A 73A User s Manual or the Agilent El474A 75A User s Manual for additional information on installing configuring and operating the modules Consult the appropriate mainframe or command module user s manual for information on configuring and operating the mainframe Manual Content Title Content General Provides a basic description and lists the test eguipme
45. l I The product was tested in a typical configuration with Agilent Technologies test systems September 5 2000 Wien Na Date Ouality Manager Title For further information please contact your local Agilent Technologies sales office agent or distributor Authorized EU representative Agilent Technologies Deutschland GmbH Herrenberger StraBe 130 D 71034 B blingen Germany Agilent E1472A 73A 74A 75A 50W 75W RF Multiplexers Expanders Module Service Manual 3 DECLARATION OF CONFORMITY According to ISO IEC Guide 22 and CEN CENELEC EN 45014 Manufacturer s Name Agilent Technologies Incorporated Manufacturer s Address Declares that the product Product Name Model Number Product Options Conforms with the following European Directives The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carries the CE Marking accordingly Conforms with the following product standards EMC Standard Limit IEC 61326 1 1997 A1 1998 EN 61326 1 1997 A1 1998 CISPR 11 1997 A1 1997 EN 55011 1998 Group 1 Class A IEC 61000 4 2 1995 A1 1998 EN 61000 4 2 1995 4kV CD 8kV AD IEC 61000 4 3 1995 EN 61000 4 3 1995 3 V m 80 1000 MHz IEC 61000 4 4 1995 EN 61000 4 4 1995 0 5kV signal lines 1kV power lines IEC 61000 4 5 1995 EN 61000 4 5 1995 0 5 kV line line 1 kV line ground IEC 61000 4 6 1996 EN 61000 4 6 1996 3V 0 15 80 MHz
46. les This damage can range from slight parameter degradation to catastrophic failure When handling multiplexer expander assemblies follow these guidelines to avoid damaging components e Alwaysuse a static free work station with a pad of conductive rubber or similar material when handling electronic components e Do not use pliers to remove a MOS or CMOS device from a high grip socket Instead use a small screwdriver to pry the device up from one end Slowly lift the device up one pair of pins at a time e After you remove a MOS or CMOS device from a module place the device onto a pad of conductive foam or other suitable holding material e If a device requires soldering be sure the assembly is placed on a pad of conductive material Also be sure that you the pad and the soldering iron tip are grounded to the assembly The etched circuit boards in the multiplexer expander modules have plated through holes that allow a solder path to both sides of the insulating material Soldering can be done from either side of the board with equally good results When soldering to any circuit board keep in mind the following guidelines e The relays used on these printed circuit boards require special soldering techniques and equipment The use of a solder pot is recommended for relay removal and replacement e Do not use a high power soldering iron on etched circuit boards as excessive heat may lift a conductor or damage the board e Use a s
47. llowing cables are available from Agilent Technologies for use with E xpander the multiplexer expander For other cable lengths and configurations Options Agilent PN contact your Agilent Technologies sales office Cable E1473 80002 Remote Expander Cable Kit to remote mount either the Agilent E1473A or Agilent E1475A next to the DUT Cables are 0 8 Meters long and can be daisy chained up to 8 Meters E1472 61601 RMD Cable 3 to 1 Cable Two cables are reguired to operate one or more expander modules 50 Q Cables 8120 5629 Right angle to right angle female SMB connector 125 mm 8120 5091 Straight to straight female SMB connector 125 mm 8120 5609 Right angle female to bulkhead mount male SMB connector 175 mm 8120 5614 Right angle female SMB to BNC female connector 175 mm 75 Q Cables 8120 5591 Right angle to right angle female SMB connector 125 mm 8120 5584 Straight to straight female SMB connector 125 mm 8120 5580 Right angle female to bulkhead mount male SMB connector 175 mm 8120 5619 Right angle female SMB to BNC connector 175 mm Test Kit A test kit is available from Agilent Technologies for use in the Performance Verification tests of the Agilent E1474A E1475A 75 2 RF Multiplexer Expander Order Agilent part number E1474 80000 See Table 1 1 for kit parts CLIP ACLIP Component Level Information Packet is available for the Ag
48. ltiplexer or expander CHANNEL WIRING INSULATION All channels that have a common connection must be insulated so that the user is protected from electrical shock This means wiring for all channels must be insulated as though each channel carries the voltage of the highest voltage channel CAUTION MAXIMUM INPUTS The maximum voltage that can be applied to any terminal is 42 V Peak any center or chassis to any other center of chassis The maximum current per channel or common is 1 A DC or AC RMS The maximum power that can be applied to any channel or common is 24 W or 24 VA STATIC ELECTRICITY Static electricity is a major cause of component failure To prevent damage to the electrical components in the multiplexer or expander observe anti static techniques whenever working on the device RELAY REMOVAL The RF relays used in these multiplexers are high mass high pin count devices Individual relay removal is not recommended A solder pot is required for removal or replacement Use of standard soldering equipment will cause damage to the relay and PC board Agilent E1472A 73A 74A 75A Service Manual General Information 15 Inspection This section contains initial incoming inspection and shipping guidelines S hi p p in g for the multiplexer expander modules Initial Use the steps in Figure 1 3 as guidelines to perform initial inspection of one Inspection of the modules Verification Tests are optional WARNING To avoid p
49. measured VSWR reading scanf lf amp result i k 6 iprintf id OPEN 10 u u u n Mm k i if result i k 2 gt 1 35 printf n n Channel u u FAILED VSWR 1 35 k i printf in Press ENTER to test next channel getchar Agilent E1472A 73A 74A 75A Service Manual Example C Programs 63 printf n n500 MHz to 1 3 GHz VSWR Test complete printf n Press ENTER to display measurement results getchar printf Ann printf n 100 MHz to 500 MHz 500 MHz to 1 3 GHz n for k 0 k lt 5 k for i 0 i lt 3 i printf nChannel u u VSWR 18lf 18lf k i result i k result i k 6 iclose id iclose dm Close instrument session 64 Example C Programs Agilent E1472A 73A 74A 75A Service Manual
50. n the product to an Agilent Technologies Sales and Service Office for service and repair to ensure that safety features are maintained 2 Agilent E1472A 73A 74A 75A 50W 75W RF Multiplexers Expanders Module Service Manual DECLARATION OF CONFORMITY According to ISO IEC Guide 22 and CEN CENELEC EN 45014 Manufacturer s Name Agilent Technologies Incorporated Manufacturer s Address Declares that the product Product Name Model Number Product Options Conforms with the following European Directives The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC and carries the CE Marking accordingly Conforms with the following product standards EMC Standard Limit IEC 61326 1 1997 A1 1998 EN 61326 1 1997 A1 1998 CISPR 11 1997 A1 1997 EN 55011 1998 Group 1 Class A IEC 61000 4 2 1995 A1 1998 EN 61000 4 2 1995 4kV CD 8kV AD IEC 61000 4 3 1995 EN 61000 4 3 1995 3 V m 80 1000 MHz IEC 61000 4 4 1995 EN 61000 4 4 1995 0 5kV signal lines 1kV power lines IEC 61000 4 5 1995 EN 61000 4 5 1995 0 5 kV line line 1 kV line ground IEC 61000 4 6 1996 EN 61000 4 6 1996 3V 0 15 80 MHz IEC 61000 4 11 1994 EN 61000 4 11 1994 I cycle 100 Canada ICES 001 1998 Australia New Zealand AS NZS 2064 1 Safety IEC 61010 1 1990 A1 1992 A2 1995 EN 61010 1 1993 A2 1995 Canada CSA C22 2 No 1010 1 1992 UL 3111 1 1994 Supplemental Information
51. nce of flammable gases or fumes For continued protection against fire replace the line fuse s only with fuse s of the same voltage and current rating and type DO NOT use repaired fuses or short circuited fuse holders Keep away from live circuits Operating personnel must not remove equipment covers or shields Procedures involving the removal of covers or shields are for use by service trained personnel only Under certain conditions dangerous voltages may exist even with the equipment switched off To avoid dangerous electrical shock DO NOT perform procedures involving cover or shield removal unless you are qualified to do so DO NOT operate damaged equipment Whenever it is possible that the safety protection features built into this product have been impaired either through physical damage excessive moisture or any other reason REMOVE POWER and do not use the product until safe operation can be verified by service trained personnel If necessary return the product to an Agilent Technologies Sales and Service Office for service and repair to ensure that safety features are maintained DO NOT service or adjust alone Do not attempt internal service or adjustment unless another person capable of rendering first aid and resuscitation is present DO NOT substitute parts or modify equipment Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification to the product Retur
52. nt protection IMPAIRED PROTECTION Whenever it is likely that instrument protection has been impaired the mainframe must be made inoperative and be secured against any unintended operation REMOVE POWER IF POSSIBLE Some procedures in this manual may be performed with power supplied to the mainframe while protective covers are removed Energy available at many points may if contacted result in personal injury If maintenance can be performed without power applied the power should be removed 14 General Information Agilent E1472A 73A 74A 75A Service Manual WARNING USING AUTOTRANSFORMERS If the mainframe is to be energized via an autotransformer for voltage reduction make sure the common terminal is connected to neutral that is the grounded side of the main s supply CAPACITOR VOLTAGES Capacitors inside the mainframe may remain charged even when the mainframe has been disconnected from its source of supply USE PROPER FUSES For continued protection against fire hazard replace the line fuses only with fuses of the same current rating and type such as normal blow time delay etc Do not use repaired fuses or short circuited fuseholders SHOCK HAZARD Only service trained personnel who are aware of the hazards involved should install remove or configure the multiplexer or expander Before you remove any installed module disconnect AC power from the mainframe and from other modules that may be connected to the mu
53. nt reguired for Information service Verification Functional verification operation verification and performance Tests verification tests Replaceable Replaceable parts lists and illustrations Parts Service Procedures to aid in fault isolation and repair 6 Agilent E1472A 73A 74A 75A Service Manual Notes Agilent E1472A 73A 74A 75A Service Manual Notes 8 Agilent E1472A 73A 74A 75A Service Manual Table of Contents Chapter 1 General Information Introduction zx A ah A re 11 Relay Lidia td tl a REAL el A qe 12 End of Life Detection le 13 Replacement Strategy s sacr aai ees 13 Safety Considerations 22e 14 Warnings and Cautions ss LL 14 Inspection Shipping LL a 16 Initial Inspection asa m med rss LAI 16 Shipping Guidelines 17 Environment otra Er Ex Oe EA 18 RF Multiplexer Expander Description 2 o e 18 Agilent E1472A E1473A Description LL LL 18 Agilent E1474A E1475A Description 0 0 0 24244 19 Multiplexer Expander Specifications LL 19 Multiplexer Expander Serial Numbers LL LL 19 Multiplexer Expander Options LL LL 20 Test Kit zoll Be ED A A su UD EE 20 CLIP 2 27 te ie iaia pala a ee DG ee a 20 Recommended Test Equipment aooaa 21 Chapter 2 Verification Tests Introduction um etn la aan Rat RI te se AN MER 23 Test ConditionsProcedures 2 2 22 m m one
54. on Minimum Measured Value Maximum Test Acc Value Value Ratio TAR 2 1 VSWR Test VSWR 100 MHz to 500 MHz Channel 00 1 25 1 003E 1 Channel 01 1 003E 1 Channel 02 1 003E 1 Channel 03 1 25 1 003E 1 Channel 10 1 25 1 003E 1 Channel 11 N 1 003E 1 Channel 12 1 003E 1 Channel 13 1 25 1 003E 1 Channel 20 1 25 1 003E 1 Channel 21 j 1 003E 1 Channel 22 1 003E 1 Channel 23 1 25 1 003E 1 Channel 30 1 2 1 003E 1 Channel 31 1 003E 1 Channel 32 2 1 003E 1 Channel 33 1 25 1 003E 1 Channel 40 1 25 1 003E 1 Channel 41 1 003E 1 Channel 42 1 003E 1 Channel 43 1 25 1 003E 1 Channel 50 1 25 1 003E 1 Channel 51 1 003E 1 Channel 52 3 1 003E 1 Channel 53 1 25 1 003E 1 Single sided specification Minimum value does not apply 38 Verification Tests Agilent E1472A 73A 74A 75A Service Manual Table 2 3 Performance Test Record Page 3 of 3 Model Report No Date Test No Description Minimum Measured Value Maximum Test Acc Value Value Ratio TAR 2 1 VSWR Test VSWR 500 MHz to 1 3 GHz Channel 00 1 35 1 097E 1 Channel 01 3 1 097E 1 Channel 02 1 097E 1 Channel 03 1 35 1 097E 1 Channel 10 1 35 1 097E 1 Channel 11 1 097E 1 Channel 12 E 1 097E 1 Channel 13 1 35 1 097E 1 Channel 20 1 1 097E 1 Channel 21 I 1 097E 1 Channel 22 I 1 097E 1 Channel 23 1 35 1 097E 1
55. or the Agilent standard software agreement for the product involved Agilent E1472A 73A 74A 75A 50W 75W RF Multiplexers Expanders Module Service Manual Edition 2 Rev 2 Copyright O 1996 2006 Agilent Technologies Inc All Rights Reserved Agilent E1472A 73A 74A 75A 50W 75W RF Multiplexers Expanders Module Service Manual 1 Printing History The Printing History shown below lists all Editions and Updates of this manual and the printing date s The first printing of the manual is Edition 1 The Edition number increments by 1 whenever the manual is revised Updates which are issued between Editions contain replacement pages to correct the current Edition of the manual Updates are numbered sequentially starting with Update 1 When a new Edition is created it contains all the Update information for the previous Edition Each new Edition or Update also includes a revised copy of this printing history page Many product updates or revisions do not require manual changes and conversely manual corrections may be done without accompanying product changes Therefore do not expect a one to one correspondence between product updates and manual updates Edition 1 Part Number E1472 90010 August 1992 Edition 2 Part Number E1472 90011 May 1996 Edition 2 Rev 2 Part Number E1472 90011 August 2006 Safety Symbols Instruction manual symbol affixed to product Indicates that t
56. ossible hazardous electrical shock do not perform electrical tests if there are signs of shipping damage to the shipping container or to the instrument INITIAL INSPECTION Notify Agilent and carrier Keep carton ror carrier inspection A Contents N x Complete A 1 Notify Agilent install Module See Series B Installation u and Cetting Started Cuide See Chapter 2 Verification Tests Return to Agilent See Shipping Guidelines Optional Deliver Module to User Figure 1 3 Initial Incoming Inspection Guidelines 16 General Information Agilent E1472A 73A 74A 75A Service Manual i i ollow the steps in Figure 1 4 to return one of the multiplexer expander Shippin Foll h ps in Figure 1 4 f th Itiplexer expand Guidelines modules to a Agilent Technologies Sales and Support Office or Service Center 1 Prepare the Multiplexer e Remove user wiring from terminal block e Attach tag to module pod that identifies Owner Model Number Serial Number Service Reguired e Place tagged device in approved anti static bag 2 Package the Multiplexer SHIPPING CARTON Address e Place packaged multiplexer in shipping carton e Place 75 to 100 mm 3 to 4 inches of shock absorbing material around the multiplexer e Sealthe shipping carton securely e Mark the shipping carton FRAGILE
57. res knowledge of the applied load and life specifications for the applied load For the Agilent E1472A 73A 74A 75A maximum relay life is specified at 5 X 10 operations with no load and 10 operations at the maximum rated load Replacement The replacement strategy also depends on the application If all of the relays St rategy see similar loads and switching frequencies the entire circuit board can be replaced when the end of life approaches The sensitivity of the application should be weighed against the cost of replacing relays with some useful life remaining In general individual relay replacement is not recommended for the Agilent E1472A or Agilent E1474A RF Multiplexers CAUTION The RF relays in these multiplexers are high mass high pin count devices A solder pot is recommended for removal or replacement If a solder pot is not available a RF surface mount soldering iron should be used Use of standard soldering eguipment will damage the relay and PC board Damage to the PC board or relays caused by improper soldering technigues is not covered by the product s warranty NOTE Relays that wear out normally or fail due to misuse should not be considered defective and are not covered by the product s warranty Agilent E1472A 73A 74A 75A Service Manual General Information 13 Safety Considerations Warnings and Cautions WARNING This product is a Safety Class I instrument that is provided with a protective earth terminal w
58. s Verify that the logical address switch is set correctly factory set at 120 Verify that the interrupt priority jumpers are set correctly factory set at level 1 Verify the Relay Drive Level is set correctly factory set at 12 Vdc Refer to the Agilent E1472A E1473A User s Manual or Agilent E1474A E1475A User s Manual for procedures to set or check these switches jumpers Checking the RF Multiplexer PCA Check the following e Verify that fuses F501 F502 F503 and F504 are good e Check connectors P200 P400 P500 and P501 for damage e Perform Test 2 1 in Chapter 2 Replace Relay Assembly PC for failing channels Checking the Relay Assembly PCA Check the following e Check connector contacts P1 e Perform Test 2 1 in Chapter 2 Replace Relay Assembly PC for failing channels Agilent E1472A 73A 74A 75A Service Manual Service 51 Isolati ng to an Figure 4 1 is a simplified diagram of the multiplexer and two multiplexer As sembly expanders For this configuration up to six relay assemblies can be driven by a single control assembly The relay assemblies must be driven in pairs and both RMD cables must be connected to the relay assemblies for the assembly to be recognized using the SYST COPT command See Expander Functional Verification Chapter 2
59. sult1 1 K gt 1 25 THEN 540 PRINT 550 PRINT Channel amp VAL K amp VAL amp FAILED VSWR gt 1 25 560 PRINT Press Continue to test the next channel 570 PAUSE 580 CLEAR SCREEN 590 ENDIF 600 NEXT I 610 NEXTK 620 OUTPUT Mux RST 630 CLEAR SCREEN 640 PRINT 100 MHz to 500 MHz VSWR test complete 650 DISP Press Continue for 500 MHz to 1 3 GHz VSWR Test 660 PAUSE 670 CLEAR SCREEN 680 PRINT Equipment Setup 690 PRINT 700 PRINT 1 Turn network Analyzer ON allow a 1 hour warm up 710 PRINT 2 Install Agilent E1472A or E1474A RF Multiplexer in mainframe 720 IF Tst 2 THEN 730 PRINT 2a Install Agilent E1473A or E1475A Expander 740 END IF 750 PRINT 3 Turn mainframe power ON 760 DISP Press Continue when ready to begin testing 770 PAUSE 780 CLEAR SCREEN 790 PRINT Calibrate the Network Analyzer Agilent E1472A 73A 74A 75A Service Manual Verification Tests 31 800 810 820 830 840 850 860 PRINT PRINT 1 Press PRESET PRINT 2 Select SWR measurement type from the FORMAT menu PRINT 3 Set the START frequency to 500 MHz PRINT 4 Set the STOP frequency to 1 3 GHz PRINT 5 Select the 3 5 mm CAL kit PRINT 6 Calibrate the test port and cable for OPEN SHORT and LOAD 870 880 890 900 910 920 930 940 950 960 PRINT 7 Set the scale to 100 mV DIV DISP Press Continue when ready to begin testing PAUSE CLEAR SCREEN OUTPUT OMux RST FORK 0TO5 PRINT TA
60. t the mainframe has passed its power on test 2 Send the TST command to the device see example following 3 The device will return an error code Any non zero error code indicates a self test failure See Table 4 3 for a description of self test error codes An example follows which uses an HP 9000 Series 300 computer with BASIC and an multiplexer address of 70915 10 OUTPUT 70915 TST Send the self test command 20 ENTER 70915 A Get response 30 PRINTA 40 END Expander Functional Verification Procedure The Functional Verification Test for the Agilent E1473A E1475A RF Multiplexer Expanders consists of sending the COPTion guery command and checking the response This test can be used to verify that the device is connected properly and is responding to basic commands 1 Verify that the multiplexer is installed in the mainframe and that both the mainframe and multiplexer have passed the power on test This test assumes the conditions listed in Test Conditions Procedures in this chapter 2 Send the SYSTem COPTion guery command to the device see example following 3 The multiplexer will return a string indicating if any expander modules are connected The string is in the form E1474A E1475A 0 if only a single expander module in this case an Agilent E1475A is connected to the multiplexer The first parameter of the returned string indicates the type of multiplexer installed in the mainframe Agilent E1472A or
61. uction device or wooden toothpick to remove solder from component mounting holes When using a suction device be sure that the equipment is properly grounded After making repairs to the module inspect the device for any signs of abnormal internally generated heat such as discolored printed circuit boards or components damaged insulation or evidence of arcing Determine and correct the cause of the condition Then perform the Functional Verification Test described in Chapter 2 to verify that the device is functional Agilent E1472A 73A 74A 75A Service Manual Service 57 58 Service Agilent E1472A 73A 74A 75A Service Manual Chapter A Verification Tests C Programs Fu n cti onal These programs are designed to do the Functional Verification Tests found e in Chapter 2 Verification Tests Verification Tests e Functional Verification Test for the Agilent an Example The Functional Verification Test for the Agilent E1472A and E1474A RF j ultiplexers consists of sending the command and checking the Multiplexer Self Multipl ists of sending the TST d and checking th Test response This test can be used to verify that the multiplexer is connected properly and is responding to a basic command NOTE This program assumes a primary address of 09 and a secondary address of 15 If your Multiplexer address does not match this you must either change the Multiplexers address setting or change the program line define ADDR hpib7
62. y all shipping charges duties and taxes for products returned to Agilent from another country Agilent warrants that its software and firmware designated by Agilent for use with a product will execute its programming instructions when properly installed on that product Agilent does not warrant that the operation of the product or software or firmware will be uninterrupted or error free Limitation Of Warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied products or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance The design and implementation of any circuit on this product is the sole responsibility of the Buyer Agilent does not warrant the Buyer s circuitry or malfunctions of Agilent products that result from the Buyer s circuitry In addition Agilent does not warrant any damage that occurs as a result of the Buyer s circuit or any defects that result from Buyer supplied products NO OTHER WARRANTY IS EXPRESSED OR IMPLIED Agilent SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Exclusive Remedies THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES Agilent SHALL NOT BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEOUENTIAL DAMAGES WHETHER BASED ON CON TRACT T

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