HP 11793A Operating And Service Manual Download | Manualshive

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Summary of Contents for 11793A

Page 1: ...wever as a result of this transition the products and related documentation contained in this shipment may be labeled with either the Hewlett Packard name and logo the Agilent Technologies name and logo or a combination of both Information in this package may refer to Hewlett Packard HP but applies to your Agilent Technologies product Hewlett Packard and Agilent branded products with the same mode...

Page 2: ...O P E R A T I N G A N D S E R V I C E M A N U A L HP 11793A MICR0WAVE CONVERTER September 1990 11793 90011 111111111111111111111111111111111111111111111111111111111111ll111 HEWLETT PACKARD ...

Page 3: ...rants that its software and firmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument or software or firmwarewill be uninterrupted or error free LIMITATION OF WARRANTY The foregoingwarranty shall not apply to defects resulting from improper or inadequate maintena...

Page 4: ...sition as smooth as possible for you However as a result of this transition the products and related documentation contained in this shipment may be labeled with either the Hewlett Packard name and logo the Agilent Technologies name and logo or a combination of both Information in this package may refer to Hewlett Packard HP but applies to your Agilent Technologies product Hewlett Packard and Agil...

Page 5: ...directly to instrumentswith serial numbers prefixed 2520A With changes described i n Paragraph 31 this manal also applies to instruments with serial numbers pre fixed 2407A For additional important information about serial numbers see INSTRUMENTS COVEREDBY THIS MANUAL in Paragraph 4 First Edition OHEWLElT PACKARD COMPANY 1985 EAST 24001 MISSION AVENUE TAF C 34 SPOKANE WASHINGTON U S A 99220 ...

Page 6: ...1 Regulatory Information Updated March 1999 1 ...

Page 7: ...ower source to the product input wiring terminals power cord or supplied power cord set SAFETY SYMBOLS AIndicates instrument damage can occur if indicated operating limits are exceeded A Indicates hazardous voltages 1 Indicates earth ground terminal WARNING A WARNING note denotes a hazard It calls attentionto a procedure practice or the like which if not correctly performedor adheredto couldresult...

Page 8: ...or serviceableparts in this product Refer servicingto qualifiedpersonnel To prevent electrical shock do not remove covers Servicinginstructions are for use by qualified personnel only To avoid electrical shock do not perform any servicingunless you are qualifiedto do so The opening of covers or removal of parts is likely to expose dangerous voltages Disconnect the product from all voltage sources ...

Page 9: ...uct must not be restricted The ambient temperature outsidethe cabinet must be less than the maximum operatingtemperature of the product by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts then forced convection must be used Product Markings CE the CE mark is a registered trademark of the European Community A CE mark accompanie...

Page 10: ...o or destruction of part or a l l of the product Do not proceed beyond a CAUTION sign until the indicated conditions are fully understood and met I WARNING 1 Interrupting the protective grounding conductor inside or outside the instrument or disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal injury Grounding one conductor of a two conducto...

Page 11: ...ODEL 11793A IF INPUT CABLE HP Part Number 11793 60006 FREQUENCY CONTROL CABLE HP Part Number 8120 1838 LO INPUT CABLE HP Part Number 11793 60009 LINE POWER CABLE Figure 1 HP Model I I 7 9 3 A Microwave Converter with Accessory Cables 0 ...

Page 12: ...h the instrument can be tested for performance standards or limits Instead the Local Oscillator LO Requirements are listed in Table 1 These requirements are the performance standards or limits against which the instrument can be tested The supplemental characteristics listed in Table 2 are not warranted requirements but are typical characteristics included as additional information for the user Ta...

Page 13: ...may contain information for correcting errors in the manual To keep this manual as current and accurate as possible Hewlett Packard recommends that you periodically request the latest Manual Changes supplement The supplement is identified with the manual print date and part number that appear on the title page Complimentary copies of the supplement are available on request from your nearest Hewlet...

Page 14: ...ardware that are English thread Instruments with Serial Prefix 2520A and higher have System I1 cabinet parts and hardware that are METRIC thread When ordering Option 907 908 or 909 for instruments with serial number prefix 2407A English thread use the HP part number in parenthesis Option 907 Front Handle Kit Ease of handling is increased with front panel handles To retrofit a standard instrument o...

Page 15: ...oth 115 and 230 Vac HP part number 21 10 0063 are supplied The control cable HP part number 8120 1838 is a 30 cm 12 in flexible cable with male BNC 50 ohm connectors on each end It connects to the frequency offset mode output of the measuring instrument The LO cable HP part number 11793 60009 is a 36 cm 14 5 in flexible cable with 3 5 mm female end connectors The LO cable includes a 3 5 mm male to...

Page 16: ...I Minimum Specification I Multimeter DC Volts Range 1OOV DC Volts Accuracy 2 AC Volts Range lOOV AC Volts Accuracy 10 at 50 Hz RF Test Equipment Troubleshooting of the microwave components of the Microwave Converter requires measurements to 26 5GHz of gain or insertion loss SWR power conversion loss and frequency Instruments which are required to perform these tasks include signal genera tors and ...

Page 17: ...ension cord power cable without a protective conductor grounding Grounding one conductor of a two conductor outlet is not sufficient protection This instrument is provided with a three wire power cable When connected to an appropriate ac power receptacle this cable grounds the instrument cabinet The type of power cable plug shipped with the instrument depends on the country of destination See Tabl...

Page 18: ...urope Saudi Arabia Egypt unpolarized in many nations Straight CEE7 Y11 goo 8120 1692 I 125V United States Canada Mexico Japan 1OOV or 200V Philippines Taiwan Straight NEMA5 15P 90 Straight NEMA5 15P Straight NEMA5 l5P 90 Straight NEMA5 15P Straight SEVl 011 Type 12 1959 24507 80 80 36 80 80 36 79 Black Black Black Jade Gray Jade Gray Jade Gray Gray I 250 V Switzerland United States Canada Straight...

Page 19: ...d 55 C to 7S C Temperature Options 001 01 1 and 021 25 C to 7S C Humidity 49 5 relative Altitude 15 300 meters SO 000 feet 18 Packaging Original Packaging Containers and materials identical to those used in factory packaging are available through Hewlett Packard offices If the instrument is being returned to Hewlett Packard for servicing attach a tag indicating the type of service required return ...

Page 20: ...at could result in personal injury Before the Microwave Converter is plugged in it must be set to the same line voltage as the power source or damage to the instrument may result The HP 11793A Microwave Converter is designed to be operated remotely by the measuring instrument in its frequency offset mode Operation of the Microwave Converter is therefore under control of the measuring instrument 20...

Page 21: ...e Line Voltage Select Switch Fuse Power Cord and the Frequency Offset input connectors See Figure 5 Rear Panel Features 22 Operator Checks Operator s checks consist of insuring that a fuse of proper value is installed that the power cord is plugged in that the signal control lines are connected and that both the measuring instrument and the external LO are connected and turned on 23 Operator Maint...

Page 22: ...Panel Features RF INPUT is a rear panel input for the RF signal instead of the standard front panel connection for option 020 021 instruments IF OUTPUT is a rear panel out put for the IF signal instead of the standard front panel connec tion for the option 020 021 instruments FREQ OFFSET INPUT enables the measuring instrument to con trol the switching circuitry T T I LINE VOLTAGE SELECTION SWITCH ...

Page 23: ...nt s RF Power calibration factors match the sensor module The measuring instrument must be in frequency offset mode in order to enter the RF Power calibration factors into the Frequency Offset mode RF Power Cal Factor Table 2 Set the microwave LO source frequency and level as listed in Table 6 Performance Tests Znstrument Settings For each setting perform the following steps a Set the frequency of...

Page 24: ...se of VR3 See Service Sheet 3 Adjust AIR5 on the AI Switch Control Assembly until the voltage is between 11 9 and I 2 1 Vdc 26 Replaceable Parts Table 7 lists all replaceable parts in alphanumeric order by reference designator Table 8 contains the names and addresses that correspond to the manufacturer s code numbers 27 Replaceable Parts List Table 7 Replaceable Parts is organized as follows a Ele...

Page 25: ...mber prefix Changes to the parts list are recorded by serial prefix on a Manual Changes supplement Also errors in the manual are noted in the Errata portion of the Manual Changes supplement 29 Illustrated Parts Breakdowns The components that compose the Microwave Converter are illustrated in the component locator diagrams in Figure 13 and in the illustrated parts breakdown photographs of Figures 7...

Page 26: ...STOR 237 1 125W F TC 0 100 RESISTOR 237 1 125W F TC 0 100 RESISTOR TRMR 1 0 0 10 C TOP RDJ 1 TRN RESISTOR 2 37K 1 125W F TC 0 100 RESISTOR 10 1 5W F TC 0 100 RESISTOR 2 37K 1 125W F TC O 100 RESISTOR 5 11K 1 125W F TC 0 100 RESISTOR 2 37K 1 125W F TC 0 100 RESISTOR 12 1K 1 125W F TC 0 100 RESISTOR 2 37K 1x l25W F TC 0 100 RESISTOR 2 37K 1 125W F TC O 100 RESISTOR 2 37K 1 125W F TC 0 100 RESISTOR 2...

Page 27: ...SHER LK I N T L T 3 8 I N 377 1N ID NUT HEX DBL CHAM 3 8 32 THD 094 IN THK CONNECTOR ASSEMBLY RF INPUT REAR PRNEL OPTION 020 ONLY WRSHER LK I N T L T 3 8 I N 377 IN ID NUT HEX DEL CHRM 3 8 32 THD 094 IN THK CONNECTOR ASSEMBLY LO INPUT __ __ _ _ _ RERR PANEL OPTION 020 ONLY WASHER LK I N T L T 3 8 I N 377 IN ID NUT HEX DBL CHRM 3 8 32 THD 094 IN THK CONNECTOR ASSEMBLY TYPE N I F OUTPUT RERR PRNEL O...

Page 28: ...MM SCREW MRCH M4 X 0 7 10MM LG PAN HD WASHER LK HLCL 4 0 MM 4 1 MM ID NIXER HOUSING MD SCREW MRCH M4 X 0 7 10MM LG PAN HO WgSHER LK HLCL 4 0 MM 4 1 MM IO R F I STRIP ORDER QTY 2 FT RF COVER SCREW MRCH M4 X 0 7 10MM LG PRN HO WASHER LK HLCL 4 0 MM 4 1 MM IO RMPLIFIER BRACKET OPTIONS 0 0 1 0 1 1 RND 020 ONLY SCREW MRCH M3 X 0 5 SMM LG PRN HD MIXER BRACKET SCREW MACH M3 X 0 5 10MM LG PRN HO SCREW MRC...

Page 29: ... M3 X 0 5 12MM LG PRN HO NUT HEX OEL CHRM M3 X 0 5 2 4MM THK MODULE HRRNESS RSSEMBLY OPTIONS 001 011 AN0 0 2 1 ONLY WRSHER LK HLCL 3 0 nn 3 1 MM ID MoouLE CRBLE FLRT i i TO 9 NUT HEX DBL CHRM 113 X 0 5 2 4MM THK WRSHER LK HLCL 3 0 MM 3 1 MM ID COiVRCT RF CONN BNC TNC FEM CTR SLEEVE RF CONN SER BNC TNC CLRMP CRBLE 5 DIR 5 WD NYL WRSHER LK I N T L T 15 32 I N 4 7 2 I N I 0 NUT HEX DBL CHAM 15 32 32 ...

Page 30: ...ASS WORKS BRADFORD SPECIALTY CONNECTOR CO I N C NbTIONnL SEBICONDUCTOR CORP HEULETT PACKARD CO CORPORATE HQ RCA CORP S O L I D STATE D I V SPRhCUE ELECTRIC CO AHPWENOL SALES D I U OF BUNKER RABO DALLAS TX PHOENIX A TINLEY PARK 1 1 RALEIGH NC BRADFOR D PA GREENWOOD I N SANTA CLARA CA PAL0 ALTO CA SOMERUILLE NY NORTH ADABS HA BROADUIEW IL Zip Code 75222 85008 60477 27604 16701 46227 94304 01247 6015...

Page 31: ...Microwave Converter Model 11793A MP8 M P 7 MPlO 1 1 MP9 MP12 NOTE MP21 AND MP22 ARE HOLE PLUGS Figure 6 Cabinet Parts 20 ...

Page 32: ...Standard W19 Option 010 u3 J1 W17 Option 020 MP25 Under MP18 MP18 MP25 W3 AT1 W2 MP25 J2 J3 I l l MP14 MPl5 Gasket w7 w12 A1 W13 MP20 T1 F1 52 w10 J10 W8 u2 MP13 MP16 f11 Figure 7 Illustrated Parts Breakdown for Standard and Option 010 21 ...

Page 33: ...tion 001 3ption 011 3ption 021 s1 MP14 MP15 Gasket A1 MP20 W13 T1 F1 only W4 Option 001 only W6 u1 MP18 u3 W3 W2 J2 only W14 Option 011 only I I Under 52 W8 w11 eJ11 w 7 u2 MP13 f11 MP16 Figure 8 Illustrated Parts Breakdown for Options 001 and 0I I 22 ...

Page 34: ...ith the serial number prefix 2407A have MP3 rear frame MP8 rear panel and associated english thread hardware that are screwed together These parts have been changed to a riveted one piece assembly that is referenced to MP8 To replace MP8 you must order the Rear Panel Assembly 11793 20009 and the metric screws for the side struts and rear feet 32 SERVICE 33 Principles of Operation Simplified Block ...

Page 35: ... S2 shown in the schematic automatically interrupt the current flowing into the energized solenoid once the plunger switches the RF contacts The plungers latch via permanent magnets Service Sheet 3 AI Switch Control Assembly The Level Comparator UIA and U1B and Decoder U3A U3B and U3C decode a three level input through the rear panel FREQ OFFSET INPUT connector into binary levels that control the ...

Page 36: ...rect torque wrench when installing sub miniature connectors Do not exceed the following torque settings for this instrument 1 5 N m for the 3 mm TlO screws 2 0 N m for the 4 mm T15 screws 0 7 N m 6 3in lb for S M A connectors 0 7 N m 6 3in lb for Type N connectors General Troubleshooting information is broken down into three categories 0 RF devices control devices and 0 power supplies Either a com...

Page 37: ... Frequency Range 2 to 26 5GHz RF Frequency Range 1 3 to 26 5 GHz LO Power 8 dBm Conversion Loss lo dB SWR 4 1 Control Devices Service Sheet 3 Set a power supply to 0 Vdc and connect it to the FREQ OFFSET INPUT connector Set the supply to 0 3 and S Vdc respectively and compare the logic levels of the logic devices with those listed in Table 9 When specifically checking the drive transistors 42 Q3 Q...

Page 38: ...rol Line Switch Contacts These instructions pertain to switches S1 in instruments with the LO amplifier option and or S2 standard and LO amplifier option configuration located within the RF module See Figure 9 Switch Contact Location TERMINAL 1 SPRING CONTACT TERMINAL C SWITCH CONTACT CR2 TERMINAL 2 SPRING CONTACT Figure 9 Switch Contact Location 1 Remove the switch from the RF module Refer to Par...

Page 39: ...assemblies Note that Option 020 and 021 instruments differ from the standard and other option models in that the main deck and transformer locations inside the instrument are reversed when compared to the standard and other option models as shown in Figures 7 and 8 In Option 020 and 021 models the RF module is in the rear of the instrument and the transformer is mounted in the front left corner Th...

Page 40: ...ax cables Possible attenuation or interference of the RF signal may result a When inside connections can be reached use a 5 16 open end wrench to disconnect the semi rigid coaxial cables from the front panel connectors b Carefully set aside the front panel and slide the main deck assembly out of the instrument chassis To remove the main deck on Options 020 and 021 disconnect the input cable connec...

Page 41: ...s on the main deck MP13 adjacent to the assembler mount the A1 assembly to the main deck assembly The three large holes in the A1 assembly must align with the three mounting stand offs and the heat sink holes must align with the deck mounting holes Firmly seat the A1 assembly on the mounting stand offs and lock the stand offs by turning the screw heads a 1 4 turn clockwise Fasten the transistor he...

Page 42: ... facing you Disconnect W I 2 gray ribbon cable at A 1J1 Remove module cover MP16 by removing the ten cover screws Disconnect cables W7 and W8 using a 5 16 open end wrench W7 from U3 Mixer and FL1 Filter W8 from U2 IF Amp and S2 Switch port 4 Unsolder orange wire from U2 Remove U2 and FL1 from MP16 by removing the two screws securing U2 then loosening the filter clamp screw and sliding the assembly...

Page 43: ...m U 1 Remove U2 and FL1 from MP16 by removing the two screws securing U2 then loosen the filter clamp screw and slide the assembly out Disconnect W9 from S1 port 1 and U1 Disconnect the LO input semi rigid coax cable W4 in Option 001 W14 in Option 01 1 or W18 in Option 021 from S1 port 2 being careful not to bend crimp or kink the cable The radio frequency interference RFI shielding grommet can be...

Page 44: ...oove using a protected finger Guide and twist the shielding to the next boss with the other hand c At the next boss twist the shielding into a tight curl guide it through the groove then allow the shielding to expand to hold itself in place d When an opening in the outer wall of the module is encountered the shielding should be cut diagonally Begin the threading procedure on the other side of the ...

Page 45: ...7 to U3 and FL1 Connect W8 to U2 and S2 port 4 Secure module cover to base Snug the screws down finger tight then tighten the screws working from the center out Connect W12 to AlJ1 42 RF Module Assembly Procedure for Option 001 011 021 Instruments 1 2 3 4 5 6 For Spira Shield RF gasket replacement refer to step 1 under Paragraph 41 above Wrap and solder the control wires to the S1 and S2 terminals...

Page 46: ...that the radio frequency interference RFI shielding grommet cradles the cable in the slot with the cable access slit facing to the side Connect W 2 to S2 port 3 Ensure that the RFI Grommet is in place as described in step 11 Connect W 5 to the left port of U1 Amplifier and to S1 port 4 Connect W 6 to the right port of U3 mixer and to S1 port 3 Connect the LO input semi rigid coax cable W4 in Optio...

Page 47: ...L E l INPUT I CONTROL ASSEMBLY I 1 r I I 1 I I I _ I I I I I I UNREGULATED t 1 2 v t26V FULL WAVE RECTIFIER POWER TRANSFCRHER t 1 2 v REGULATOR 0 t 5 v I I t5v REGULATOR BD 1 Figure 10 MICROWAVE CONVERTER Simplified Block Diagram 37 30 ...

Page 48: ...3 J 010 ONLY1 I NOTE 31 L _ d OPTION 0 2 0 ONLY1 LEFT S I O E I J ISTO ONLYl I NOTE 3 4 SEE FIGURE 7 FOR HELP I N COMPONENT LOCATION AND I O E N T I F I C A T I O N RIGHT SIDE1 J I IOPTION 010 ONLY1 I JB L _ _ _ l O P f I O N 020 ONLY1 INPUT SIQNAL DOWN CONVERTER I Ill I S2 RF INPUT SWITCH EO0 MHz U 2 I F 1 5 d E U3 MIXER AMPLIFIER AT1 3 6 8 ATTENUATOR STD AND OPTION I 010 ONLYl I NOTE 31 ss 1 F i...

Page 49: ... BE OROEREO SFPARA1i l 3 INPUT VOLTAGE TO LO AMPLIFIER CANNOT EXCEED t 5 1 0 6V OF t 1 2 VdC SUPPLY LO AMP OPT 001 0 1 1 0 2 1 5 SEE FIGURE 0 FOR HELP I N COMPONENT LOCATION AND I D E N T I F I C A T I O N I ONLY I I OPTION 021 ONLYI I K2 T I I BOO HHz I z e AT1 340 F L l LOU ATTENUATOR PASS FILTER IPTIONAL LO AMPLIFIER AND SWITCH L C R 1 AMPLIFIER 18 26 6H2 NOTE 31 I f I F 15d0 L I F IER D OPTION...

Page 50: ...SWITCH CONTROL ASSEMBLY 11793 60001 I 01 0 1 TOP BOTTOM VIEW VIEW IANOOEI VR3 VR3 TOP BOTTOM V I E Y VIEW j 3 CASE1 VR4 TOP VIEW T O R F s w c ii E S 2 3 ss3 Figure 14 A I SWITCH CONTROL ASSEMBLY Schematic Diagram 4 3 4 4 ...

Page 51: ...2 A 1222 VIENNA Austria Tel 222 2365110 Telex 1 3 4425 HEPA A NORTHERN EUROPE Hewlett Packard S A Uilenstede 475 P O Box 999 The Netherlands Tel 20 437771 NL 1180 AZ AMSTELVEEN SOUTH EAST EUROPE Hewlett Packard S A 7 Rue du Bois du Lan CH 1217 MEYRIN 2 Switzerland Tel 022 83 12 12 Telex 27835 hpse Cable HEWPACKSA Geneve OTHER EUROPE Hewlett Packard S A P O Box 150 Rte du Nant D Avril CH 1217 MEYRI...

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