HP 5254C Operating And Service Manual Download

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Summary of Contents for 5254C

Page 1: ...HP 5254C OPERATING AND SERVICE MANUAL FREQUENCY CONVERTER S254C rzcn 5254C FREQUENCY CONVERTER 15 3 0 GHz HEWLETT PACKARD HEWLETT hp PACKARD M ...

Page 2: ...aterials and workmanship This warranty applies for one year from the date of delivery or in the case of certain major compo nents listed in the operating manual for the specified period We will repair or replace products which prove to be defective during the warranty period provided they are returned to Hewlett Packard No other warranty is expressed or implied We are not liable for consequential ...

Page 3: ...prefix number 1124A See Paragraph 1 7 MODELS 5254A 5245B This manual with information provided in Section VII also applies to Model 5254B Frequency Converter having serial prefix number 952 712 514 429 and 415 Copyright H EWLETT PACKARD COMPANY 1964 5301 STEVENS CREEK BLVD SANTA CLARA CALIF 95050 Printed SEP 1971 HEWLETT iho PACKARD ...

Page 4: ...embly A3 4 13 Video Amplifier A5 4 1 4 1 4 1 4 1 4 1 4 1 4 3 MAINTENANCE 5 1 Introduction 5 3 Periodic Maintenance 5 5 Test Equipment 5 7 In Cabinet Performance Check 5 9 Troubleshooting 5 11 Multiplier Amplifier Assembly A1 5 13 Mixer Assembly A3 5 15 Video Amplifier Assembly A5 5 17 Repair and Replacement 5 18 General 5 20 Printed Circuit Component Replacement 5 22 Multiplier Amplifier Assembly ...

Page 5: ...Diagram 4_2 Spectrum Analyzer Display 5 _ 5 Top and Right Side View 5254C 5 _ 6 Model 5254A Operating Procedure 7_2 Cavity and Left Side View 5254A 7 _ 4 Top and Right Side View 52 54 A 1 5 Multiplier Assembly Al and Video Amplifier Assembly A 5 Component Location 5254A Multiplier Assembly Al Harmonic Generator A2 Schematic 7 7 Filter Assembly A4 Mixer A3 and Video Amplifier A5 Schematic 7 9 Schem...

Page 6: ...Section I Model 5254C j v m V w m SSi 3M V ft V IMS B ...

Page 7: ...se an 8 digit serial number 000 00000 The first three digits are a serial prefix number the last five digits refer to the specific instrument Later in struments use a 9 digit serial number OOOOAOOOOO The first four digits are the serial prefix and the last five digits refer to the specific instrument If the serial prefix of your instrument differs from that listed on the title page of this manual ...

Page 8: ...t the front panel with card board strips d Seal the package with strong tape or metal bands Mark with Delicate Instrument e Refer to the address list at the rear of this man ual and check with your Hewlett Packard sales and service office for shipping instructions All corres pondence should refer to an instrument by Model num ber and the full eight digit serial number 2 7 ENVIRONMENT Conditions du...

Page 9: ...rtz below the input signal Tune up for the first response and add the counter reading to the dial frequency 3 3 CONTROLS AND INPUT 3 4 GENERAL The function of the front panel con trol meter connectors and retaining screws are discussed in Paragraphs 3 5 through 3 8 3 5 INPUT CONNECTOR Signal input 50 ohms in put impedance 50 mV 13 dBm in 50 ohms to 1 V rms 13 dBm in 50 ohms into Type N female conn...

Page 10: ...ifference frequency between the MIXING FREQUENCY and the INPUT frequency is more than 1 MHz and less than 53 MHz the bandwidth of the Video Amplifier As sembly A5 3 16 AID TO RAPID TUNING 3 17 When using a counter with MANUAL START it is easy to obtain an indication of the proper MIXING FREQUENCY when rapidly tuning the Model 5254C through its frequency range in search of an unknown INPUT frequenc...

Page 11: ...2950 MHz No response difference frequency greater than 1 MHz to 53 MHz pass band of video ampl 000020 00 MHz Green 3 0 GHz 3000 MHz First response 3000 MHz 20 MHz 3020 MHz EXAMPLES OF TWO RESPONSES 1020 MHz 000020 00 MHz Green 1 0 GHz 1000 MHz First response 1000 MHz 20 MHz 1020 MHz 000030 00 MHz Green 1 05 GHz 1050 MHz Second response 1050 MHz 30 MHz 1020 MHz 000050 00 MHz Green 85 GHz 850 MHz Fi...

Page 12: ...he chassis while A1R1 would re fer to a component located on the multiplier amplifier assembly A1 see Table 5 2 for as sembly designations 4 5 MULTIPLIER AMPLIFIER Al see Figure 4 2 4 6 A 10 megahertz signal from the counter is ap plied to buffer amplifier A1Q1 The buffer amplifier A1Q1 is a tuned amplifier providing a constant ampli tude 10 MHz signal to the multiplier A1Q2 and pro vides isolatio...

Page 13: ...ce of 50 ohms and provides a low standing wave ratio typically be low 1 5 up to 3 0 GHz Capacitor A3C1 provides dc isolation up to 100 volts A5R1 A5R2 and A5R3 control the bias currents of the mixer diodes A3CR1 and A3CR2 and are adjusted for maximum common mode rejectionwithinthe video band 1 MHz to 53 MHz The non linearity of the diodes A3CR1 and A3CR2 gives rise to signals with frequencies whic...

Page 14: ...hms A5R24 to provide the input impedance required by the low pass filter The low pass filter a three section Tschebycheff filter provides a 53 MHz cut off frequency for the video amplifier A5Q9 andA5Q10 form a shunt feedback amplifier providing a low im pedance input at the base of A5Q9 This in series with 91 ohm resistor A5R25 provides 100 ohms out put impedance required by the low pass filter A5...

Page 15: ...Hz to 20 MHz 10 mV to 10 V rms 10 mV resolution Circuit Adjustment if Model 411A if 11 02 5 A Probe Oscilloscope 1000 MHz bandwidtli Circuit Adjustment Troubleshooting If Model 140A with 141 1A Plug in 1425A Plug in 143 0A Sampler Termination 50 ohms feedthrough Circuit Adjustment R X Meter 60 MHz to 120 MHz Circuit Adjustment Boonton 250A Spectrum Analyzer 3 GHz Frequency Circuit Adjustment if 85...

Page 16: ...ection IV Principles of Operation for information on the operation of circuits Table 5 2 gives the reference designations of assemblies used in the converter and their corresponding nomenclatures Figure 5 2 shows the location of all assemblies used in the Model 5254C Figures 8 2 and 8 3 show com ponent location on the assemblies Table 8 1 Trouble shooting Aids gives information on waveforms and dc...

Page 17: ...d Through hole plating breaks are indicated by the separation from the board of the round conductor pad on either side of the board To repair breaks press conductor pads against board and solder replacement component lead to conductor pad on both sides of the board 5 22 MULTIPLIER AMPLIFIER ASSEMBLY A1 5 23 To remove the Multiplier Amplifier Assembly A1 see Figure 5 2 and proceed as follows a Unsc...

Page 18: ...e Figure 8 4 g Remove the four mixer securing screws Re move mixer by carefully pulling it out of its cavity in MP14 machined amplifier shield h To replace the Mixer Assembly A3 reverse the procedure used in steps a through g i The Mixer Balance adjustment Paragraph 5 40 procedure should be performed after replacing the Mixer Assembly A3 5 30 FILTER ASSEMBLY A4 5 31 To remove Filter Assembly A4 se...

Page 19: ...y is between 25 mV and 50 mV throughout the input frequency range 8 Replace MP6 top plate b 1 With counter power off connect converter to counter with Extension Cable HP 10506B 2 Remove four screws which secure MP6 top plate and remove MP6 3 Turn counter power on 4 Connect HP 140A with HP 14 10A plug in 1000 MHz Oscilloscope using an HP 10214A Divider and an HP 102 17A Blocking Capacitoi to collec...

Page 20: ...d adjust Mixer Bal ance Adjust A5R3 for a minimum reading on the level indicator meter 5 41 LOW PASS FILTER ADJUSTMENT 5 42 The Low Pass Filter in the Video Amplifier Assembly A5 consists of three resonant LC parallel circuits see schematic diagram Figure 8 6 These circuits are pre tuned and sealed at the factory and should need no further adjustment The following procedure can be used to verify c...

Page 21: ...54C TOP VIEW MPIO A2 MOUNTING SCREWS 2 Al MOUNTING SCREWS 2 MPI3 C3 GROUND LUG MPIO RIGHT VIEW ORANGE WIRE FROM A3R4 BLUE WIRE FROM A3RI A3 MOUNTING SCREWS 4 MP8 BOTTOM PLATE 5 6 Figure 5 2 Top and Right Side View 5254C ...

Page 22: ...POWER OFF SENSITIVITY PLUG IN TIME BASE 100 ms FUNCTION FREQUENCY FREQUENCY CONVERTER DIAL 200 MHz b Connect VHF Signal Generator to plug in Set output level of Generator to 0 05V rms c Vary frequency from 200 MHz to 450 MHz keeping the output constant at 0 05V rms Reading of plug in dial and Counter display should be correct frequency Tune Converter for maximum signal indication d Substitute UHF ...

Page 23: ...compartment of HP 5245L g Connect Synthesizer OUTPUT to 5254C INPUT h Set Synthesizer output frequency to 210 MHz at a level of 0 dBm 0 224 volts rms i Tune 5254C upscale from 2 GHz until first meter indication is obtained Note Counter reading and record Reading must be identical with that obtained in step d 2 Hz j Connect setup as shown in Figure 5 3 Set Counter controls as follows SAMPLE RATE sl...

Page 24: ...ett Packard Model 5254C Frequency Convci ter Plug In Serial No Tests Performed by Date CHECK INDICATION 1 RANGE 1 200 to 3000 MHz 2 INPUT SIGNAL LEVEL J 1 50 mV rms 13 dBm in 50 ohms to IV rms 13 dBm in 50 ohms 3 ACCURACY Same as basic counter 02405 1 5 8a ...

Page 25: ...ium copper BH binder head BP bandpass BRS brass BWO backward wave oscillator CCW counter clockwise CER ceramic CMO cabinet mount only COEF coefficient COM common COMP composition COMPL complete CONN connector CP cadmium plate CRT cathode ray tube CW clockwise DEPC deposited carbon DR drive ELECT electrolytic ENCAP encapsulated EXT external F farads FH flat head FIL H fillister head FXD fixed G gig...

Page 26: ...0 25VDCi A1C20 0150 0093 ClFXD CER 0 01 UF 80 20 lOOVOCtt A1C21 0140 0224 ClFXD MICA 280 PF 1 300 VDCW A1C22 0140 0195 ClFXD MICA 130 PF 5 3QOVDC A1C23 0170 0083 ClFXD My 0 022 UF 20 50VDCW A1C24 0150 0093 ClFXD CER C 01 UF 80 20 10GV0C A 1C 2 5 0130 0018 C iVAk CER 1 5 7 PF A1C26 0160 0127 ClFXu CER 1 UF 20 25VDCW A1C27 0160 0127 ClFXD CER 1 UF 20 25VDC A1C28 0150 0093 ClFXD CER C 01 UF 80 20 10Q...

Page 27: ...T CX 2200 OHM 5 1 2 A 1R8 0683 2725 RlFXD COMP 2700 OHM 556 1 4 A 1R9 0663 5105 RlFXD COMP 51 OHM 5 1 4 A1R10 0758 0044 RlFXD MET CX 2200 OHM 5 1 2 A IR 1 i 0663 1025 RlFXu COMP 1000 OHM 5 1 4 A IRi 2 0758 0017 RlFXD MET CX 1500 OHM 5 1 2 A iR 1 0683 5115 RlFXD COMP 510 OHM 5 1 4 A1R14 0683 3325 RlFXD COMP 3300 OHM 556 1 4 A1R15 0758 0030 RlFXD MET CX 5100HM 5 1 2 A1R16 0663 4725 RlFXD COMP 4700 O...

Page 28: ...4 05254 2047 FILTER SECTION 3 A4C5 05254 2045 FILTER SECTION 1 A4MP1 05254 2010 INSERT CFRONT AMPLIFIER A4MP2 05254 2004 I NSERT s REAR AMPLIFIER A4MP3 05254 2048 SLEEVE JRF FILTER A4i_l 360A 13 WlREtCENTEK CONDUCTOR 18V100 A4L2 360 A 13 WIRESCENTER CONDUCTOR 18 100 A4L3 360A 13 WIRE t CENTER CONDUCTOR 18 100 A4L4 360 A 13 WIREtCENTER CONDUCTOR 18 100 A5 05254 6021 BOARD ASSY JAMPLIFIER 05254 2060...

Page 29: ... 9140 0213 TUNED CIRCUIT 179 6NH A5L4 9140 0181 COILiFXO RF 22UH 556 A5L5 9140 0181 COIL i FXD RF 22UH 556 A5Q 1 1653 0015 TRANS 1 5T0R SIL ICON PNP 2N3640 A5Q2 1853 0015 TRANSISTOR SIL ICON PNP 2N364Q A5Q3 1853 0015 TRANSISTORlSlLlCON PNP 2N3640 A5Q4 1853 0015 TRANSISTOR JSILICON PNP 2N3640 A5Q5 1654 0019 TRANSISTOR SIL ICON NPN A5Q6 ie53 0009 TRANS ISTOH SIL ICON PNP A5Q7 1654 0019 TRANSISTORlSl...

Page 30: ... RlFXD COMP 1600 OHM 5Sf 1 4 A5R33 0683 1813 RlFXD COMP 180 OHM 556 1 4 A5R34 0683 1015 RIFXU COMP 100 OHM 5 1 4 A5R35 0683 2425 RlFXD COMP 2400 OHM 5 1 4 A3R36 0663 1215 RlFXD COMP 120 OHM 556 1 4 A5R37 0683 1525 RlFXD COMP 1500 OHM 5 1 4 A5R38 0683 10 Id RlFXD COMP 100 OHM 556 1 4W A5R39 0683 7505 RlFXD COMP 75 OHM 556 1 4 A5R40 0663 5625 RlFXD COMP 5600 OHM 556 1 4 A5R41 0633 8225 RlFXD COMP 62...

Page 31: ...0016 PLATE SIDE MP8 05254 0010 PLATESBOTTOM MP9 5262A 83A GUIDE 5 PLUG IN PLASTIC MPlO 5262A 47A SPACER SALUKINUM ROD MPl 1 PART OF MP 1 MPl 2 PART OF MP15 MPl 3 PART OF MPl MPl 4 05254 2057 AMPLIFIER SHIELDS MACHINED MPl 5 PREFIX THE FOLLOWING PARTS MP15 Cl 0160 0204 C CER FEED THRU FILTER 2QQVDCW C 2 0160 0204 C CER FEED THRU FILTER 200VDCW C3 0160 0204 ClCER FEED THRU FILTER 200VDCW MPl 1 1250 ...

Page 32: ...HING J RF CONNECTOR 1250 0803 CONTACT aEEHALE CENTER 1250 087U BOOYiRE CONNECTOR 8120 0046 CABLE l C OAX 50 0HMU1 1 4 LONG MISCELLANEOUS 5040 0185 BEZEL METER 1410 0033 BUSHING JK NC6 0370 0275 KNOB t CRANK ELK 1 OIA 0370 0050 KNOBJHANOLt 05254 2074 PIN ASSY OUTPUT COATED 05254 0014 ASHER CLAMP See list ol abbreviations in introduction to this section ...

Page 33: ... 5 28480 0160 0958 1 0170 0083 CtFxD MY 0 022 UF 20 SOvDC 84411 601 PE STYLE 1 1 0362 0013 terminal cable 28480 0362 0013 1 0370 0050 KNOEl HANDLE 28480 0370 0050 1 0370 0275 KNOB t CRANK BLK 1 DIA 28480 0370 0275 1 0410 0089 CRYSTAL 50MC 28480 0410 0089 1 0590 0012 NUT t SDK I TCH KNURLED 04009 20994 NV 1 0683 1005 ft t FXD COMP 10 OHM 5 1 4 01121 CB 1005 1 0683 1015 RtFxD COMP 100 OHM 5 1 4 0112...

Page 34: ... t RF CONNECTOR INSULATOR SACK t RF CONNECTOR BUSHINS t RF CONNECTOR CONTACT tFEMALE CENTER BODY t RF CONNECTOR CONNECTOR 50 PIN BE AR I NS t BALL bUSHlNGiKNOB BALL RETAINER THRUST BEARING THRUST ASHER t BALL BEARING PINtSTOP TRANS 1ST OR t SI L l CON PNP TRANSISTOR SILICON PNP 2N3640 TRANSISTORS SILICON NPN 2N706 TRANS ISTOPtSILI CON NPN TRANSISTOR SILICON NPN D I ODE t PO I NT CONTACT SILICON MA...

Page 35: ...10 1 05254 0012 PLATESTOP 28480 05254 0012 1 05254 0014 ash r clamp 28460 05254 0014 1 05254 0015 BRACKET METER 28480 05254 0015 1 05254 0016 PLATE JSIDE 28480 05254 0016 1 05254 0018 bPACKET JBOARD 28480 05254 0018 1 05254 2004 INSERTiREAR AMPLIFIER 28480 05254 2004 1 05254 2008 CAPACITOR MOUNT M I XER 26480 05254 2008 1 05254 2009 CONTACT tMIXER 26480 05254 2009 1 05254 2010 INSERT IFRONT AMPLIF...

Page 36: ... 6005 1 4 05254 6006 MIXER ASSY 28480 05254 6006 1 _L 05254 6008 cable assyjCavity output 28460 05254 6008 1 05254 6009 ASSY F I NGER MOUNT 28480 05254 6009 1 05254 601 1 TOROID ASSYiWOUND 28480 05254 6011 1 i 05254 6012 HARMONIC GENERATOR ASSY 26480 05254 6012 1 i 05254 6013 FILTER ASSY RF 28480 05254 6013 1 05254 6014 DIODE ASSY MI XER 28480 05254 6014 1 05254 6015 TERMINATION ASSY M I XER 28480...

Page 37: ...56 Silicon Transistor Corp Carle Place N Y 07261 Avnet Corp Culver City Cal 07263 Fairchild Camera Inst Corp Semiconductor Div Mountain View Cal 07322 Minnesota Rubber Co Minneapolis Minn 07387 Birtcher Corp The Monterey Park Cal 07397 Sylvania Elect Prod Inc Mt View Operations Mountain View Cal 07700 Technical Wire Products C ranford N J 07829 Bodine Elect Co Chicago 111 07910 Continental Device ...

Page 38: ...ld N J 82042 Carter Precision Electric Co Skokie 111 55938 Raytheon Co Commercial Apparatus 74276 Sip nalito Inc Neptune N J 8204 7 Sperti Faraday Inc Copper Hewilt fc Svstem Div So Norwalk Conn 74455 J H Winns and Sons Winchester Mass Electric Div Hoboken N J 56137 Spaulding Fibre Co Ine Tonawanda N Y 74861 Industrial Condenser Corp Chicago III 82116 Electric Regulator Corn Norwalk Conn 56289 Spr...

Page 39: ...p Electronics Div East Patterson N J South Chester Corp Chester Pa Wire Cloth Products Inc Hellwood 111 Automatic Metal Products Co Brooklyn N Y Worcester Pressed Aluminum Corp Worcester Mass Magnocraft Electric Co Chicago 111 George A Philbriek Researchers Inc Boston Mass Aleo Elect Mfg Co Lawrence Mass Allies Products Corp Diania Fla Continental Connector Corp Woodside N Y Leeeratt Mfg Co Inc Lo...

Page 40: ...ultiplying a 10 MHz signal derived from the 1 MHz internal time base of the counter to a selectable harmonic frequency between 3 to 3 0 GHz This known harmonic of 50 MHz is then he eio dyned with the input signal If resulting difference frequency is between 1 MHz and 53 MHz bandwidth of A5 Video Amplifier it is counted and displayed by the counter The frequency of the JNPUl sjgjaj 1S then indicate...

Page 41: ...fix numbers 514 02175 and above This section with the following changes also applies to 52 54A Frequency Converter having serial numbers 514 02175 and below 429 and 415 Instrument Serial No Prefix Change No 514 02175 and below 1 429 415 2 CHANGE 1 Figure 7 2 A5 Video Amplifier Assembly Make the following changes A5R32 change to 2400 ohms A5E1 delete 1 Refer to the Operating Section of your HP Elec...

Page 42: ...24 MIXER ASSEMBLY A3 7 25 The Mixer Assembly is the same as that in the 5254B See Figure 7 6 7 26 FILTER ASSEMBLY A4 7 27 The Filter Assembly is the same as that in the 5254B See Figure 7 6 7 28 VIDEO AMPLIFIER A5 7 29 The Video Amplifier is similar to that used in the 5254B See Figure 7 6 However trigger cir cuit A5Q13 A5Q14 and A5Q15 has been eliminated The output signal at A5Q10 emitter is appl...

Page 43: ...Section VII Model 5254C Figure 7 2 Cavity and Left Side View 5254A 7 4 ...

Page 44: ...2 MPIO GROUND LUG M PI 4 METER HIGH FREQ ADJ MIXER BAL ADJ MPI4 AMPL SHIELD MOUNTING SCREWS 3 ORN WIRE FROM A3R4 TO A5C2 BLU WIRE FROM A3R3 TO A5CI A3 MIXER j ASSY A3 MIXER MOUNTING SCREWS 4 LOW PASS FILTER ASSY VIDEO AMPL OUTPUT CABLE Figure 7 3 Top and Right Side View 5254A 1 ripi 1 v AF whT v MP i L I 5 ...

Page 45: ...I FROM A3R4 ORN FROM A3R3 BLU R3 C3 C 7 R15 C5 Q6 07 C6 R20 Q8 R24 C8 R22 R25 CI5 C1J L3 C 1 L2 Cl CII C9 C24 Q9 R27 R39 R26 CR2 CR1 R32 C18 Q12 R33 C 19 R28 Q10 C23 R29 R37 C20 R35 C22 R36 on j R31 R30 R38 R34 CI7 CI6 C2I 11 CIO FROM Cl OUTPUT TO COUNTER P6 l EXTERNAL x OUTPUT P6 46 A 5 Ficure 7 4 Multiplier Assembly Al and Video Amplifier Assembly A5 Component Location 5254A 7 6 ...

Page 46: ...Al MULTIPLIER AMPLIFIER ASSEMBLY 10 TO 50MH oscsa eoiomnoie ASTEHI Kl INDICATES SELECTED COMPONENT ...

Page 47: ...Section VII Model 5254C Table 7 2 Troubleshooting Aids Model 5254 A 7 8 ...

Page 48: ...9 ...

Page 49: ...FXD CER 0 01 UF 80 20 100VDCW C FXD MICA 180 PF 2 C FXD MICA 130 PF 5 300VDCW CtFXD CER 1 0 UF 20 25VDCW C FXD CER O Ol UF 80 20 100VDCW A1C21 A1C22 A1C25 A1C24 A1C25 0140 0224 0140 0195 0170 0085 0150 0095 0150 0017 C FXD MICA 280 PF 1 C FXD MICA 130 PF 5 300VDCW C FXD MY 0 022 UF 20 50VDCW C FXD CER O Ol UF 80 20 100VDCW C s VAR CER 8 50 UF N 75O A1C26 A1C27 A1C28 A1C29 0160 0127 0160 0127 0150 ...

Page 50: ...1035 R FXD COMP 10K OHM 5 1 4W A1T1 05254 6011 TOROID ASSEMBLY WOUND A1Y1 0410 0089 CRYSTAL 50 MC 004 Ml SC 0890 0001 TUBING l 2 A2 05254 6012 HARMONIC GENERATOR ASSEMBLY PARTS IN THIS ASSEMBLY NOT RECOMMENDED FOR FIELD REPLACEMENT A2C1 0160 0958 C FXD MICA 390 PF 5 300VDCW C FXD MICA lOOO PF 5 250VDCW A2C2 0160 0759 A2CR1 1901 0153 SEMI CON DEV 1 CE D 1 ODE SILICON A2MP1 05254 2039 DIODE MOUNT A2...

Page 51: ...EVE RF FILTER MISCELLANEOUS 05254 2050 SPACER F 1 LTER TERMINATION 1250 0020 CONTACT BNC FEMALE A5 05254 6004 05254 2043 VIDEO AMPLIFIER ASSEMBLY BLANK PRINTED CIRCUIT BOARD A5C1 0140 0178 C FXD MICA 560 PF 2 300VDCW A C2 0140 0178 C FXD MICA 560 PF 2 300VDCW A5C3 0160 0127 C FXD CER 1 0 UF 20 25VDCW A 5C4 0150 0093 C FXD CER 0 01 UF 80 20 100VDCW A5C5 0150 0121 C FXD CER 0 1 UF 80 20 50VDCW A5C6 ...

Page 52: ... 20 LIN 1 4W A R4 0683 1825 R FXD COMP 1 8 K OHM 5 1 4W A3R3 0683 1025 R FXD COMP IK OHM 5 1 4W A5R6 0683 3025 R FXD COMP 3000 OHM 5 1 4W A 3R 7 0683 1025 R FXD COMP IK OHM 5 l 4W A5R8 0683 1615 R FXD COMP 160 OHM 5 l 4W A5R9 0683 3025 R FXD COMP 3000 OHM 5 l 4W A5R10 0683 1825 R FXD COMP 1 8 K OHM 5 l 4W A5R11 0683 1025 R FXD COMP IK OHM 5 l 4W A3R12 0683 2015 R FXD COMP 200 OHM 5 1 4W A5R13 0683...

Page 53: ... F R MP1 MP2 3050 0381 WASHER THRUST 05254 2026 REAR CAVITY 05254 2030 GEAR D i AL DRIVE 05254 2032 GEAR DIAL TRAINf l 05254 2033 GEAR D 1 AL TRA N 2 05254 2035 CAVITY MACHINED 05254 2040 SHAFT IDLER GEAR 05254 4002 BUSH 1 NG D 1 AL 05254 6009 FINGER MOUNT ASSEMBLY MP2 05254 6002 PROBE DRIVE ASSEMBLY CONS 1 STS OF 1410 0058 8EARING BALL 1460 0197 SPR 1 NG ANT BACKLASH 5000 0206 SPR 1 NG WASHER 502...

Page 54: ...GUIDE PLUG IN p LASTIC SPACER ALUMINUM WASHER S I LVER PLATED BRASS SIDE PLATE AMPL IF IER BRACKET B0ARD AMPLIFIER SH I ELD MACH I NED SHIELD ASSY AMPL I NCL A3 A4 A5 Cl THPli r MPll THRU MP14 W2 W3 5 CONNECTOR MALE 50 PIN CABLE ASSY CAV I TY OUTPUT CABLE ASSY VI t DEO AMPL OUTPUT CABLE ASSYjAUA OI T M I SCELLANEOUS KNOB HANDLE PART OF KNOB KNOB BEARING SLEEVE PART OF KNOB BUSHINGrBRASS DIODE ASSY...

Page 55: ... 0683 1215 R FXD COMP 120 OHM 5 1 4W 0683 1245 R FXD COMP 120K OHM 5 1 4W 0683 1325 R FXD COMP 1300 OHM 5 1 4W 0683 1345 R FXD COMP 13OK OHM 5 1 4W 0683 1525 R FXD COMP 1 5K OHM 5 i 4W 0683 1615 R FXD COMP 160 OHM 5 1 4W 0683 1625 R FXD COMP 1600 OHM 5 1 4W 0683 1815 R FXD COMP 180 OHM 5 1 4W 0683 1825 R FXD COMP 1 8K OHM 5 1 4W 0683 2015 R FXD COMP 200 OHM 5 1 4W 0683 2205 R FXD COMP 22 OHM 5 1 4...

Page 56: ...PRESS ION 28480 1410 0058 1410 0204 BEARING SLEE E 28480 1410 0204 1460 0197 SPR 1 NG ANTI BACKLASH 28480 1460 0197 1850 0020 TRANS 1 STOP GERMANIUM PNP 2N1143 01295 2N1143 1850 0102 TRANS STOP GERMANIUM PNP 2N2455 93332 2N2455 is 54 0005 TRANSISTOR SI L ICON NPN 2N 08 07263 2N708 1854 0019 TRANS ISTOR SIL ICON NPN S6516 07263 S 6516 1854 0035 TRANS ISTOR S ILICON NPN 07263 S 6783 1900 0014 DIODEr...

Page 57: ...049 05254 2050 05254 2051 05254 4001 05254 4002 05254 4003 05254 6001 05254 6002 05254 6004 FILTER SECTION 1 1 SLEEVE RF FILTER BRACKET GEAR SPACER F LTER TERMINATION PANEL FRONT CAPACITOR ASSEMBLY 1 NPUT BUSHING DIAL PIN ASSEMBLY rOUTPUT PROBE ASSEMBLY PROBE DRIVE ASSEMBLY VIDEO AMPLIFIER ASSEMBLY 28480 28480 28480 28480 28480 28480 28480 28480 28480 28480 28480 05254 2047 05254 2048 05254 2049 0...

Page 58: ...o Description Mir Mfr Part No TQ 9140 0218 9140 0219 9140 0220 9140 0221 COIL VAR TUNABLE 80 NH CO 1 L VAR TUNABLE 119 NH CO 1 L VAR TUNABLE 175 NH COIL VAR TUNABLE 800 NH 04811 04811 04811 04811 PC 80 L57 06 PC 115 L 57 06 PC L57 06 P C 800 L 57 06 2 2 1 1 7 19 7 20 ...

Page 59: ...L REAR PANEL KNOB CONTROL SCREWDRIVER ADJUST MAIN SIGNAL PATH FEEDBACK PATH WAVEFORMS SHOWN ARE TYPICAL CONDUCTING ELEMENT WIPER MOVES TOWARD CW WHEN CONTROL IS ROTATED CLOCKWISE POWER LINE GROUND rh O CIRCUIT COMMON GROUND TEST POINT REFERENCE DESIGNATIONS REFERENCE DESIGNATIONS WITHIN ASSEMBLIES ARE ABBREVIATED ADD ASSEMBLY NUMBER TO ABBREVIATION FOR COMPLETE DESCRIPTION ASSEMBLY ABBREVIATION CO...

Page 60: ...OX AMPLITUDE VOLTS P P WAVEFORM TP STAGE APPROX AMPUTUDF VOLTS P P WAVEFORM MB II I II t 1 13 12 4 0481 3 A1Q2 2 7 f 12 4 0 ir J i do ns 3 7 3 7 9 0 1 6 8 3 1 35 8 A5Q5 9 9 A5Q6 10 5 0 9 7 Table 8 1 Troubleshooting Aids Model 5254B 8 2 ...

Page 61: ...Model 5254C ...

Page 62: ...TO 50 MHz 05254 I3V 3V CRN 0 UF u A A g 6 Ik 1 1 510 n R2 1000 7 C28 1 0 PF b J C29 01 AX F 3V LI4 l 5 LI7 27 RED VIO I3V I5V TO AMPLIFIER A5 10 MHz INPUT FROM COUNTER 0 2 TO 3000MHz INPUT MIXER r 1 VIDEO AMPL j 53 MHz LOW PASS FILTER v i DIFFERENCE FREQUENCY TO COUNTER AUX OUTPUT 2 3 ...

Page 63: ...S PREFIX TO FORM COMPLETE DESIGNATION UNLESS OTHERWISE INDICATED RESISTANCE IN OHMS CAPACITANCE IN PICOFARADS INDUCTANCE IN MICROHENRIES ASTERISK INDICATES SELECTED COMPONENT AVERAGE VALUES SHOWN NO PREFIX Al A2 P6 C 1 29 L 1 18 QI 6 C 1 2 CR 1 RI 17 Tl Rl Wl 2 Yl COPYRIGHT 1967 BY HEWLETT PACKARD COMPANY Figure 8 2 Multiplier Amplifier Al Harmonic Generator ...

Page 64: ...on VII Model 5254C STOP GEAR DIAL DRIVE GEAR STOP PIN DIAL GEAR DIAL HUB GEAR DRIVER GEAR BEARING SUPPORT MP2 PROBE ASSY INSIDE CAVITY ASSEMBLY MIXER GROUND MIXER REAR RING R3 CONNECTOR A3 MIXER ASSEMBLY 8 4 ...

Page 65: ...Cl R2 RI6 RI7 RI4 RI8 RI9 R23 R2I R3 RI5 C5 Q Q7 C6 R20 Q8 R5I C8 R24 R22 CI3 L2 CI2 CM LI CIO R29 R27 C20 R38 R34 r QN I R35 CI8 QI2 R30 C23 R25 R42 R26 CR2 C9 C30 C2I L4 C22 R48 ro7 R46 Ldr R4I R40 R43 C24 R44 C28 CR3 QI3 QI4 R33 R 5qI5 R3I C25 R45 R32 CI7 CI637r49 R36 C19 R39 C26 A5 Cl C2 C3 C 4 C5 A4 ...

Page 66: ...TY BETWEEN DISKS AND CASTING L IS INDUCTANCE OF WIRE BETWEEN DISKS ri8 620 VZJ TSH RI5 1300 n0 Q7 1854 0019 i AMPLIFIER Q3 1853 0015 9 i Q4 1 0 f 1853 0015 5V DIFFERENTIAL AMPLIFIER Q8 1854 0019 AMPLIFIER 05 1854 0019 AMPLIFIER Q6 1853 0009 AMPLIFIER I5V 5V A 4 FILTER ASSEMBLY 05254 6013 NOTE I Cl NOTE 3 I3V O FROM AILI4 RED C2 NOTE 3 X FROM AILI5 VIO 7 10 MHz INPUT FROM COUNTER i MULTIPLIER i AMP...

Page 67: ...DUCTANCE IN MICROHENRIES 3 CI C2 C3 ARE CAPACITIVE FEED THROUGH FILTER NETWORKS 4 A3C2 A3C3 ARE CONDUCTOR CAPACITORS CONSISTING OF TEFLON TUBING OVER THE CONDUCTOR 5 DIODES CRIA AND CRIB ARE MATCHED PAIR REFERENCE DESIGNATIONS NO PREFIX A3 A4 A5 C 1 3 C 1 3 C 1 5 C 1 30 CRI CRI 3 Jl Jl L 1 4 El LI 5 Ml MP 12 14 R 1 4 Ql 15 R 1 51 WI 3 COPYRIGHT 1967 BY HEWLETT PACKARD COMPANY 05254 0 3 Figure 8 3 ...

Page 68: ...ATEST PRODUCT CONFIGURATION NEW ITEM 2 ERRATA TO CORRECT MANUAL ERRORS IF YOUR INSTRUMENT HAS SERIAL PREFIX OR SERIAL NUMBER MAKE THE FOLLOWING CHANGES TO YOUR MANUAL IF YOUR INSTRUMENT HAS SERIAL PREFIX OR SERIAL NUMBER MAKE THE FOLLOWING CHANGES TO YOUR MANUAL ERRATA Page 6 2 Table 6 1 Change A1C1 3 6 8 12 14 16 20 24 28 29 to 0160 2930 Page 6 3 Table 6 1 Change A1R15 to 0758 0054 330 OHM add to...

Page 69: ...HEWLETT ihp PACKARD nP 05254 9019 PRINTED IN U S A ...

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