HP 182C Operating And Service Manual Download Page 1

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Summary of Contents for 182C

Page 1: ...HP 182C OPERATING AND SERVICE MANUAL OSCILLOSCOPE 182C 4 A 9 H B HEWLETT iho PACKARD HP 182C ...

Page 2: ...terials and workmanship This warranty applies for one year from the date of delivery or in the case of certain major components 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 Wearenot liable for consequential dama...

Page 3: ...prefix numbers 1311A 1248A 1241A 1240A Refer to Section VII for instruments with the following standard options 001 002 003 007 010 011 013 807 X95 HEWLETT PACKARD COMPANY COLORAOO SPRINGS DIVISION IdOO GARDEN OP THE GODS ROAD COLORADO SPRINGS COLORADO U S A Manual Part Number 00182 90906 Microfiche Part Number 00182 90806 PRINTED FEB 1974 ...

Page 4: ...al Magnifier 3 2 3 26 Horizontal Display 3 2 3 28 External Vernier 3 2 3 30 Rear Panel Controls and Connectors 3 2 3 32 Outputs 3 2 3 36 Z axis Input 3 2 3 37 AC Line Input 3 2 3 39 Phase BandwkJth Switch 3 2 3 41 Phase Measurement 3 2 3 45 Plug in Units 3 4 V PERFORMANCE CHECK AND ADJUSTMENTS 5 1 5 1 Introduction 5 1 5 3 Test Equipment 5 1 5 5 Performance Check 5 1 5 9 Preliminary Setup 5 1 5 11 ...

Page 5: ... Voltage Power Module Exploded View 6 3 6 3 Series Regulator Parts Identification 6 4 6 4 Control Module Mechanical Parts 6 6 6 5 AC Power Module Parts Identification 6 8 6 6 Interconnect Module Parts Identification 6 1 6 7 Horizontal Amplifier Module Mechanical Parts 6 12 6 8 CRT Module Parts Identification 6 16 7 1 OptionOII Beam Finder Schematic 7 4 7 2 Location of Option 01 1 Circuit Change 7 ...

Page 6: ...6 3 List of Manufacturers Codes 6 17 6 18 Table Title Page 7 1 Manual Changes 7 1 7 2 Model 182C Options 7 2 8 1 Schematic Notes 8 8 8 2 MiscellaneousTroubleshootingTips 811 8 3 Low Voltage Power Supply Troubleshooting Tips 8 13 8 14 8 4 Low Voltage Power Supply Measurement Conditions 8 13 8 14 8 5 Gate Amplifier Voltage Measurement Conditions 8 17 8 6 Horizontal Amplifier Voltage Measurement Cond...

Page 7: ...General Information Model 182C Figure 1 1 Model 182C Oscilloscope 1 0 ...

Page 8: ... the rear panel An input signal of approx imately I 2V having a pulse width of greater than about 50 ns will blank a trace of normal intensity 1 9 The Model 182C is designed to operate with a number of different plug in vertical amplifiers and time bases Presently available plug ins provide a wide choice of operating capabilities such as wide bandwidth sensi tivities dual or four channel operation...

Page 9: ...he title page a MANUAL CHANGES insert sheet or Section VII of this manual will describe the changes necessary to adapt this manual to provide correct in formation 1 23 Technical corrections if any to this manual due to known errors in print are called Errata and are shown on the manual changes sheet For information on manual coverage of any HP instrument contact the nearest HP Sales Service Office...

Page 10: ...z AC coupled 5 Hz to 5 MHz DEFLECTION FACTOR XI 1 V div X10 0 1 V div Vernier provides continuous adjustment between ranges Accuracy 5 DYNAMIC RANGE 20V MAXIMUM INPUT 300V dc pk ac INPUT RC 1 megohm shunted by approx 30 pF INTERNAL SWEEP OUTPUTS Four emitter follower outputs on rear for main and delayed gates main and delayed sweeps or vertical and horizontal outputs when used with sampling plug i...

Page 11: ...g RFI shielding 1 35 Cameras probes viewing hoods terminations and other accessory items arc available for specialized require ments Information on these and the above described accessories may be obtained from HP Sales Service Offices listed in the rear of this manual Table 1 2 Reference Designators and Abbreviations REFERENCE DESIGNATORS A aaaemblv E misc electrical part p plug u integrated circ...

Page 12: ... Sales Service Office for information and assistance with warranty claims 211 REPACKING FOR SHIPMENT 2 12 If the instrument is to be shipped to a Hewlett Packard Sales Service Office attach a tag to it showing owner s name and address instrument model number and serial number and a description of service required 2 13 Use the original shipping carton and packaging ma terials for reshipment If they...

Page 13: ...MENT COOLING 2 26 This instrument does not require forced air cooling when operated at room temperature or between 0 to 55 degrees centigrade Normal air circulation will maintain a reasonable operating temperature within the instrument 2 27 Perforations in the two covers provide for the required air flow Do not obstruct them Provide scverel inches of clearance around the top rear and sides Adequat...

Page 14: ...n greater detail 3 10 CALIBRATOR 3 11 The calibrator has two outputs 10V and 250 mV peak to peak negative going from ground with an am plitude accuracy of The output is a square wave at a frequency of approximately 1 kHz Risetime of the signal is less than 3 microseconds These outputs are useful for checking vertical and horizontal sensitivity calibration and divider probe calibration A 3 way bind...

Page 15: ... to supply signals from the time base or sampling plug in to external equipment The low impedance outputs are isolated from the high impedance input signals The period of the signal output is directly related to the main and delayed sweep speed selected for the time base plug in or the vertical and horizontal outputs when used with sampling plug ins Refer to the Operating and Service Manual for th...

Page 16: ... FOCUS Adjusts writing beam for sharpest trace 12 TRACE ALIGN Rotates trace around longitu rlinal avisnf CRT 13 SCALE Controls graticule illumination I8ZC 14 Ground Connector Provides a chassis ground connection point 15 CALIBRATOR Provides a 1kHz squarewaveat two amplitudes 250 mV and 10V p p A MAIN GATE OUTPUT BNC connector for main gate signal to external equipment B DELAYED GATE OUTPUT BNC con...

Page 17: ...n degrees is deter mined by the following Lopening 0 sin 1 I L total As an example assume that total is 8 divisions If L opening is 1 division the phase shift is approximately 7 degrees Note Make certain that the switch is returned to BANDWI DTH position after making phase measurements This will allow normal operation 345 PLUG iN UNITS 3 46 The Model 182C Oscilloscope requires time base artd verti...

Page 18: ... 27 pF QSil uu 50U 5I U Differential input yes nn yes yes yes yes yes no yes Time Base Plug ins Sampling Time Base Section TDR Model No 1820C 1821 1824A 182SA 1810A 181SA B 1811A 181 8A 1815A B 150 100 150 150 i 1 GHz 18 GHz with trigger countdown 18 GHz with trigger countdown 160 ps risetime un Determined by Vertical Amplifier Plug in 1 GHz TDK Sy stem TDK Sweep Speeds div 5 ns 1 see 10 ns 1 see ...

Page 19: ...Theory Model 182C Figure 4 1 Overall Block Diagram 4 0 ...

Page 20: ...to change fuses 4 10 With power applied to the power transformer pri mary windings several secondary voltages are produced Rectified filtered and regulated as required they are used as the source of power for the various circuits of the oscilloscope and for operation of the vertical and time base plug ins 4 11 HORIZONTAL DEFLECTION 4 12 The horizontal amplifier may be used with either internal or ...

Page 21: ...E POWER SUPPLY 4 25 The low voltage supply produces four regulated voltages for use throughout the oscilloscope and the plug ins 100V 100V 415V and 12 6V Each supply is referenced to the 100V supply for regulation purposes with the t IOOV supply referenced to a 9 volt temperature compensated zener diode A1A2VR2 The tlOOV and 100V supplies are also toldback current limited pro viding short circuit ...

Page 22: ...The supply produces about 10V which is added to the 100V supply to provide a reference source for the 100V regulator Zener diode A1A2VR1 stabilizes the collector voltage for A1 A2Q3 4 34 15 VOLT SUPPLY This supply provides three voltages Approximately 30Vac p p is furnished for time base line synchronization an unregulated 27V is furnished for operation of the HV oscillator and a regulated 15V is ...

Page 23: ...d decreases gain Amplifier voltage gain is approximately 10 for Z axis signals The gate amplifier output is approximately AEq8 collector A ICR4 R21 R22 4 45 The gate amplifier output unblanking signal is added to the 3200V output of the high voltage power supply and applied to the CRT control grid Voltage level changes of the unblanking signal cause corresponding changes to the CRT control grid vo...

Page 24: ...tage change at the primary of A6T1 This increases the secondary voltage to restore cathode voltage to the desired level 4 54 The high voltage regulator monitors CRT cathode voltage through coupling network A6R9 and A6C5 Resistors A10R3 and A10R4 form a voltage divider between f 100V and the coupling network output A10R3 adjusts the operating level of FET A10Q1 High voltage fluctuations are sensed ...

Page 25: ...r is decreased when the Phase Bandwidth switch is placed in die Phase position This is accomplished by connecting A5C11 and A5C12 into the circuit The decreased bandwidth and phase shift compensates for the signal time delay in the vertical amplifier plug in This allows more accurate X Y phase measurements to be made 4 69 A vernier balance adjustment A5R11 is used to es tablish a zero input voltag...

Page 26: ... A5Q8 The differential gain is effectively cut in half and the horizontal deflection of the beam is confined to the limits of the CRT 4 76 POWER SUPPLY DECOUPLING 4 77 Decoupling networks are used on each etched cir cuit assembly for the supply voltages The use of decoupling i important to prevent extraneous signals or noise from being introduced into circuitry from the power supplies or supply le...

Page 27: ... 50kHz 50MHz 10V p p Horizontal Bandwidth Check Horizontal Linearity Adjust ment Digital Voltmeter HP 3440A W 3441A or 3444A plug in 100 Vdc 0 05 Low Voltage Power Supply Adjustment High Voltage Power Supply Adjustment 1000 1 Divider Probe HP K05 3440A Combined voltmeter divider Input impedance of 1 gigohm High Voltage Power Supply Adjustment Square Wave Generator HP 21 1A B 200 kHz IV p p risetim...

Page 28: ...future reference Readings taken at a later date can be compared with the original performance check results 5 9 PRELIMINARY SETUP 5 10 Set the line voltage SELECTOR switch located on rear panel to desired power line operating voltage 115 or 230V ac Connect instrument to line power source and apply power by turning LINE power switch ON Allow fifteen minutes for warm up Do not install plug ins 5 11 ...

Page 29: ...itude Signal Generator for output frequency of 5 MHz j Note displayed trace of 7 1 divisions or greater k Disconnect Constant Amplitude Signal Generator S 14 BEAMFINDER CHECK a Set controls as follows INTENSITY fully ccw POSITION fully ccw b Depress FIND BEAM pushbutton c Note that intensified beam is displayed Note Option Oil instruments are provided with P11 phosphor CRT The display intensity wi...

Page 30: ...ORD Serial Number Date CHECK Minimum Reading Maximum CALIBRATOR amplitude 9 9 div 10 1 div risetime none 3 nsec MAGNIFIER XI 9 5 div 10 5 div X10 9 S div 10 5 div BANDWIDTH 50 kHz set to 10 div 5 MHz 7 1 div none FIND BEAM Intensified beam yes or no on screen 5 2a b ...

Page 31: ...xpanding open end slightly and pulling away from instrument f Remove bottom cover by extending tilt stand expanding open end of covet and pulling away fiuin instrument g Return instrument to horizontal position and remove rear access cover by releasing single quarter turn fastener 5 21 PRELIMINARY SETUP 5 22 Install vertical and time base plug ins in Model 182C Set line voltage SELECTOR switch loc...

Page 32: ...g of 100V tO 1V c Connect Digital Voltmeter to 15V testpoint A1A2 TP2 1 Set 15V adjust A1A7R20 to obtain a reading of M5V tO 1V e Connect Digital Voltmeter to 12 6V testpoint A1A2 TP3 t Set 12 6V adjust A1A2R29 to obtain a reading of 12 6V 0 1V g Connect Digital Voltmeter to 100V testpoint A1A2TP4 h Set 100V adjust A1A2R40 to obtain a reading ot 100V to iv 6 4 ...

Page 33: ...J A2R4 for uniform Illumination Intensity d Slowly rotate SCALE control while adjusting SCALE PATTERN ADJ A2R4 as necessary to maintain uniform illumination intensity throughout entire range of SCALE 5 30 TRACE ALIGNMENT ADJUSTMENT a Set MAGNIFIER to XI b Set EXT COUPLING to AC c Connect Oscillator 400 Hz 10V output to EXT INPUT d Position trace on center horizontal graticule line e Set INTENSITY ...

Page 34: ... CAL b Check i IOO volt supply for t IOOV lO I V Note The calibrating accuracy of the Model 10411 A Horizontal Gain Calibrator used for this adjustment procedure is determined by the accuracy of the flOOV supply If the power supply is not flOOV 0 1V the gain adjust ment will be out of tolerance c Connect Horizontal Gain Calibrator as follows 1 Black lead connect to chassis power supply ground 2 Ye...

Page 35: ...TAL MAGNIFIER XI HORIZONTAL DISPLAY EXT EXT VERNIER CAL b Connect 10 kHz sine wave output of Oscillator to HORIZONTAL EXT INPUT and to Vertical plug in Channel A input Figure 5 4 Note Channel A of a multi channel Vertical plug in is normally used for phase measurement If another channel must be used connect Oscillator to that channel instead of Channel A c Adjust Oscillator output to obtain a 8 di...

Page 36: ...isplay f Observe displayed waveform At this stage of adjust ment waveform will typically exhibit 5 approximately 0 5 div overshoot If overshoot is greater adjust HF Adj No 1 A5C21 HF Adj No 2 A5C24 and HF Adj No 3 A5C28 TO obtain flat top response with approx imately 5 overshoot on lower right hand corner of displayed pulse Note Capacitors for HF Adj No 1 and HF Adj No 3 should be adjusted so thei...

Page 37: ...VERN BAL XI GAIN XIO GAIN DC BAL HIGH VOLTAGE TEST POINT AS TPI PHASE ADO A5CI2 H F ADJ NO l A5C21 ...

Page 38: ...Replaceable Parts ...

Page 39: ...nsistor s FH flat head PIL H fillister head FXO fixed G giga 10 GE germanium CL glass GnO ground ed H h nrv i HC mercury HP Hewlett Packard H2 Kerti IE intarmadlata fraq IMPC impfo nated INCD Incandescent INCL Ineluda s INS insulation ed INT internal K kilo 10 KG kilogram LB peund s LH left hand LIN linear taper LOG logarithmic taper LPF low pass fllier s LVR lever 3 M mini 10 MEG mega 10 MET FILM...

Page 40: ...I brrcretiShieid 2B460 00182 01201 HPa 040 044 2 FOCIS60TIQH 7F 4A0 5040 0445 HP9 C0182 00604 1 SHIElOiFOCUS 26480 00187 00604 MPIJ 001UO 0 3 104 2 Cl TPttoROUNO 28480 OOiaO OllAO HPll O d3 O128 GOlOEtPC 60 AlUG INfLEPT R6R0 4nvni2B HP12 0403 OU9 CUIDtiPC BO PIUG IMRICHI 2A480 0403 0174 HP13 0460 0770 TAPESGRAV 0 750 MIQF 00000 opn HP14 9400 0010 GRCnreisvinTL 0 250 10 00000 npoF 00102 01212 bKALK...

Page 41: ...Model 182C Replaceable Parts Figure 6 2 Low Voltage Power Module Exploded View 6 3 ...

Page 42: ...Replaceable Parts Model 182C 6 4 ...

Page 43: ...0 PIV 3A 26480 l 0l 0 H AUltklU ISiU uAlS OlOUEISIUCCN 50 PIV 3A 28A80 1901 0 15 AUU Kl 1 lVUl 0414 OinOESSILICON 60 RIV 3A 26460 1901 0414 AlAlkeKlS 14V1 041S OlOOCfSILtCOK 90 PIV 34 24480 1901 0419 AlAlChl3 l Wl 0414 DIOOEsSlLtCCN 90 PIV 4 28460 1601 0419 ALAICRIA 1VOI OA15 UlOOesSILICON 90 PIV 34 284BO 1401 0419 AlAUKlS 140I U415 DIQOESSILICON 90 PIV 34 28460 1401 0419 AIAICH16 DIO06I6ILIC0K 60...

Page 44: ...Replaceable Parts Model 182C ...

Page 45: ... S7 O5J0 1 kstXU KET FLK 2 21K JHN It 1 tM 28480 0757 0430 AlA kM s 757 u7o R FXO FLA 51 1ft CHH It 1 4W 2B4B0 0757 0769 A U7S7 C2 l RSFXU Hbf FLM 2 74ft QHH It l tH 28480 0757 0281 A 5 757 04 0 1 RsFXO HST AIM 1 62ft TlHH It 1 tW 2R4B0 0757 0426 A 2lOU ink HtVAR MW 500 Ohm 5t 1VPE N IM 2B4B0 2100 1772 A 4 K 0 757 0425 KSFXU FL 3920 OHM It 1 6W 26480 0757 0435 0 7b 7 0 Jt 7 2 Rtrxo MET fLM lOOR OH...

Page 46: ...Replaceable Parts Model 182C ...

Page 47: ...FLP nOK OHM It 1 8V 28460 0757 0468 A2K17 0646 5421 1 RsFlO MFT FLH W 82K OHM O lt l li 26460 0698 5421 A2K18 0690 5419 1 RtFXD FLH 1 95 k ChM 0 19 l 8w 28480 0498 S4I9 A2Aig 0698 5418 1 RSFXD FLM 50 OHM O lt 9 26460 0498 5418 A2A20 2100 3002 RSVAR IOK CHM 28480 2100 3002 A2K21 2100 3001 1 R8VAR 5 HEOCHH 28480 2100 3001 A2K22 0698 5678 1 RSFXD FLH 16 25 HeOUHH St IW 28460 U698 56ra 210U 3 Kl3 1 RS...

Page 48: ... A C26 0170 0040 C F10 HV 0 047 UP 108 20OVOCW 56289 I92P47792 PT5 A5C27 Oieu 0162 C FIO HV 0 022 UF 108 200V0CU 56289 192P22392 PTS A C28 0132 U007 CSVAR POLY 0 7 TO 3 0 PP 390V0CW 72982 535 033 4R AKHl 1901 0040 OlOOElSILICON 30HA 30HV 07263 P0G1088 ASCR2 191 1 00 0 OIDDElSUICOh 30HA 30HV 07263 FDC1066 A5CR3 1901 U04G DIOOeiSlLlCON 30HA 30HV 07263 FDBI088 A5CA4 SG80 0464 4 OICOE S1L1CON 30 200M ...

Page 49: ......

Page 50: ......

Page 51: ...3 A U4m 0757 0736 2 MlFXD MET FLH 1 50X DHM IX 1 4M 28480 0757 0736 ASkA 0757 C407 RSFXD MET FLM 200 OHH It 1 8W 28480 0757 0407 ASXAi C7 7 i gA f R PXn HPT FIH 12 IK OHM IX 1 2U 284B0 0757 0641 A6X44 2100 177C 1 ftsVAA riW 100 OHH 5 TYPE H 1 26460 2100 1770 AM4 g757 C427 A KXO MET FLM 1 5K OHM It 1 6H 28480 0757 0427 A SiX46 100 1773 RsVAft WW IK CHM 9t TYPE H Iw 28460 2100 1773 A9K47 0797 0264 L...

Page 52: ...9 lVOl 0040 OlOOEsSILICCN 30MA 30WV OT243 FOG1088 A7CK6 IVO 1 U02V z OIUOEISILICUN 600 P V 28480 1901 0029 A7CA7 1901 0029 DlOOEtSlLlCON 600 flV 28680 1901 0029 A7CKS 1901 0636 2 OlOOEsSUlCOR 1600 PIV 28480 1901 0436 47CR9 1901 0636 DIOOEsSiLICOh 1600 PIV 28660 1901 0638 A7tl 036Q 16S3 TERHlNALlPIN ICDA 2601 QOQOA ORO A7LI 9 140 0179 Call CHQRE 22 0 UH 101 284 80 9140 0179 A7U2 9170 0029 CORESFEAA...

Page 53: ...orthogonality Y 26460 5060 0553 A9L2 5060 0 35 1 COILIALICNHENI 1 AXIS 28 10 5060 0 15 A9MP1 00167 60602 1 SHIELD ASSYICRT 28480 00182 60602 A9MP2 OA0C00O9 GR0MMET V1NYI FOR 1 4 OIA HOLE 01538 6250 A9MP3 71200538 LABEL 28480 7120 0538 A9MP4 14000798 CLAMP CRT OLIVE 28460 14000798 A9MPS 1400 0026 CLAMP Host 66295 36H A9MP6 0380 t019 SPACER 00000 OBO A9MP7 0380 1019 SPACER 00000 OBD AlO 00162 66513 ...

Page 54: ...Replaceable Parts Model 182C Figure 6 8 CRT Module Parts Identification 6 16 ...

Page 55: ...RPaRAtt HQ TOUR KEARfSI HP JFfICF SPAAGUE ELECTRIC CG N ADAMS MASS OI T 597 0 THOMAS t 6CTTS Cg TmE EII7ARFIH N J 07 07 6629 MlItEK KPC CO r Hir AGO TLI 60623 71400 BUS HASA nlG OIV HC CRAh eOISUN CO St touts HO 71990 OlUbC UNION INC CbNTRAlAa DIV HILWAIWEF Wise 5J701 71616 CCHMEKCIAL PLASTICS CU HUNOELEI ILL 6OO90 7m r CHIC90U flirUAIUKF lAHP VilRx5 CHICAGO ILL 60640 71765 CINCH MFG COe CIV TKN I...

Page 56: ...ete Replace with Figure 7 6 Page 8 14 Figure 8 7 Delete Replace with Figure 7 7 Page 8 15 Figure 8 8 Delete Repriace with Figure 7 8 CHANGE 2 Table 6 2 A5 on pages 6 2 and 6 10 Change HP and Mfr Part No to 00182 60003 A5A1 Change HP and Mfr Part No to 00182 66510 Table 7 2 Add AS 00182 66518 Assy horizontal amplifier module A8 Change HP and Mfr Part No to 00180 66548 Board assy auxiliary Delete A8...

Page 57: ...tensification function of the FIND BEAM switch is deleted on Option 01 1 instruments equipped with PI 1 phosphor CRT to eliminate phosphor burn Figure 7 1 shows the change to the schematic for the Control Module A2 Figure 7 2 illustrates the location of the jumper wire to be removed If the CRT is replaced with a standard P31 phosphor CRT the FIND BEAM intensification capability may be restored by ...

Page 58: ...rvice manual for ad ditional information Change CATHODE RAY TUBE to Post accelerator 22 kV accelerating potential alumized P7 phosphor internal graticule Table 6 2 Replaceable Parts Change Table 6 2 as indicated for the listed components Ref Desig HP Part No Description A3 00182 60019 Assy interconnect module 0018261807 Cable assy auxiliary A8 00180 66551 Board assy auxiliary A8C1 0160 3446 C fxd ...

Page 59: ...Changes and Options Model 182C Fi re 7 1 Option Oil Beam Finder Schematic 001 h RIV A Figure 7 2 Location of Option 01 1 Circuit Change 7 4 ...

Page 60: ...Model 182C Changes and Options Figure 7 3 Auxiliary OuipuT Board Componeni and Connection Ideniltlcailon Figure 7 4 Auxiliary Output Schematic 7 5 LJ ...

Page 61: ...LOC REf UtSKj GRID LOC REF DESIG GRID LOC REF DESIG I GRID I LOC REF DESIG GRID LOC Cl 0 3 CR5 ea CR10 B 6 CRIB F 6 CR20 F 3 cm D 3 CR6 B 2 cmi 8 4 CR16 F 4 CR21 A 5 CR2 D 3 CB7 e 3 CR1Z B 4 CR17 F 2 CR2Z e 5 CH3 D 3 CR8 8 3 CR13 F 4 CR18 F 2 R1 B 3 CR4 D 3 CR9 8 4 CR14 P 4 CR19 F 3 R2 F 3 figure 7 5 Low Voltage Rectifier A1A1 Component Identification 7 6 ...

Page 62: ...IG OESIG DESI6 Q5 Qfl Q7 08 09 010 011 012 013 014 Q1S 016 ni3 R14 R16 R16 H17 R18 R19 R20 R21 R22 R23 R24 R37 R38 R3d R40 R41 R42 TP1 TP2 TP3 TR4 VR1 VR2 have plated through V CR6 I jaa p T BX V 4 is permits soldering board jre 7 6 Low Voltage Regulator A1A2 Component Identification 7 7 ...

Page 63: ...0 8V1 Q ir CIJRRFNT LIMITER C6 R26 04TUF SI IK A DIFFERENTIAL 7 COMPARATOR ...

Page 64: ... Is physically located Components not located on an assembly will have only the basic designation and are listed in the replaceable parts list Section VI under chassis parts 8 10 All components within the shaded areas on the schematics are physically located on an etched circuit board and should be prefixed with the assembly number assigned to the board e g resistor R23 on assembly A3 is referred ...

Page 65: ...placement of defective com ponents A complete list of components with Hewlett Packard part numbers and ordering information is in Section VI Contact the nearest HP Sales Service Office listed at the rear of this manual if satisfactory repair or operation cannot be achieved 8 28 SERVICING ETCHED CIRCUIT BOARDS 8 29 Etched circuit boards in this instrument have com ponents mounted on one side of the...

Page 66: ...a circuit should operate With the aid of this information it is easier to discover why a defective circuit Service is inoperative Finally make resistance checks to uncover the faulty component If it appears necessary to calibrate the instrument refer to Section V for the proper procedures 8 35 LOW VOLTAGE POWER SUPPLY 36 Fuses test points for measuring regulated output voltages arKi voltage adjust...

Page 67: ...ead may have a high voltage present even if the instrument has been turned off for a long time Ground both CRT and H V Multiplier connections to discharge The CRT post accelerator lead may have a high voltage present even if the instrument has been turned off for a long time Ground both CRT and H V Multiplier connections to discharge 8 44 If no high voltage is present check the high voltage oscill...

Page 68: ...her 2 screws are located approxinnately at the center of the assembly d Grasp the assembly Internal to the instrument and remove with a straight Dull toward the front of the instrument Do not remove by pulling on knobs Be care ful that square pins located on top of the assembly do not catch on front casting frame 8 57 AC POWER INPUT MODULE REMOVAL a Set the instrument on rear end b Remove 4 screws...

Page 69: ...ule g Carefully slide module toward front of instrument for removal h When reinstalling be certain that horizontal deflec tion cable is placed toward front of module before instal ling After module is inserted bend cable toward rear before making connection to oscilloscope conneaor 8 68 Remove the CRT as follows To prevent personal injury always wear a face mask or safety goggles when handling the...

Page 70: ...if the instru ment hasbeen turned off for a long time Ground both CRT and H V Multiplier connections to discharge a Disconnect CRT post accelerator lead at connector mounted on H V module Cable is permanently fastened to CRT Completely discharge CRT and H V Multiplier connections by grounding both plug and jack b Remove cover from module by removing two screws c Disconnect four square pin connecti...

Page 71: ...path 0 0 I v 925 Field effect transistor P type base Field effect transistor N type base Breakdown diode voltage regulator Tunnel diode Step recovery diode Circuits or components drawn with dashed lines phantom show function only and are rx t intended to be complete The circuit or component is shown in detail on another schematic Wire colors are given by numbers in parentheses using the resistor c...

Page 72: ... lOOV SERIES REGULATOR AIQ4 ECTIFIER AIAI AIC3 AIC4 I2 6V SERIES REGULATOR AIQ3 H V OSCILLATOR RECTIFIER ASSY H V REGULATOR ASSY A 10 AC POWER MODULE A 4 L V POWER MODULE A tiOOV SERIES REGULATOR A Oi iSV SERIES REGULATOR AlQ2 ...

Page 73: ...Service Figure 8 4 Interconnect Assembly A3 8 10 ...

Page 74: ...strument may have been subjected to high magnetic field magnetizing CRT elements Possible CRT malfunction Improper deflection If symptom is apparent in both vertical and horizontal axes check High Voltage If H V is low expanded display results If H V is high causes contracted display Vertical axis only check vertical plug in deflection leads and connectors Horizontal axis only check with replaceme...

Page 75: ... 6 7 6 9 10 II IS 13 14 IS I v v v v v v v v v v v v_ v_ t _ _ tv_ v_ _ tv_ tV_y _ v_ 1 _ 6ATE AMPLIFIER 4ISV IOOV Ei6V KMV ALlON t t meefi I HCRIZONTAI I AHI LlFIER SWEEP I 3 EE70V MOV IVVT XaA v L t II IS N V 4 Y f HI6H N vOLTAOE 19131 l_ _l 1914 I J7 L_ _A _ i Xk V 9161 r 4 3 A J 1 t I MI6M VOLTAOE RECTIFIER 1 HISHV0LTA6E MULTIPLIER fl D P 0W7 9 061 Lr 96 F3 ...

Page 76: ... CR14 e 4 CR21 A D CR1 D 3 CR8 B 3 CRt5 E 6 CR22 A 5 CR3 C3 CR9 B4 CR16 E 4 R1 B3 CR3 0 3 cnio B S CH17 E 3 R2 E 3 CR4 C 3 CR11 B 4 CRIB E 3 R3 D 4 cns B 3 CR12 B 4 CR19 E 3 R4 0 3 CR6 IS 3 CR13 E 4 CR20 E 3 VRl C 3 I92C H I0 Figure 8 6 Low Voltage Rectifier A1A1 Compor er t Identification ...

Page 77: ... H 3 QA J 5 016 F 4 R10 1 4 R20 H 4 R30 F 3 R40 0 4 C3 1 1 CR6 E 4 A1F1 M 1 07 H 4 HI 1 1 R11 1 4 R21 H 3 R31 6 2 R41 6 4 C4 H 6 CR7 0 3 A1F2 G 2 08 H 4 R2 1 2 R12 H d R22 6 4 R32 0 3 R42 6 2 CB G 4 61 H 1 A1F3 G 2 09 E B H3 1 3 R13 l B R23 E 6 R33 E 1 TP1 1 4 C6 f 6 E 2 G 1 A1F4 F 2 Q10 6 6 R4 1 2 R14 H 5 R24 F 4 R34 F 3 TP2 e 3 C7 Q 1 6 3 G 1 Q1 J 3 Oil F fl RS H 3 RIB G 4 R26 G B R36 E 3 TP3 G ...

Page 78: ...urrent drain Check comparator No output from one supply Check fuse Check regulator Supplies are current limited Fuse will not open due to shorted load Open line fuse Check ac line voltage ar d position of rear panel SELECTOR switch Check rectifier diodes Check filter capacitors Check power transformer Table 8 4 Low Voltage Power Supply Measurement Conditions 1 Setcontroisasfoiiows LiNE power ON Pl...

Page 79: ... LcJ T3400UF I SVP P RIPPLE I 0 8 04V fr CURRENT LIMITER ...

Page 80: ...ESIG I 1 LOG RET DESI6 cRie LOC REF OESIG ORie LOC REF DESIG 9RI0 LOC Cl D 3 t1 C3 R6 C 3 R13 C 3 C2 D 3 L2 B 3 R7 D 3 R14 B 3 J1 A 3 m B 3 R8 0 3 R1E B 3 J2 B 3 H2 B 3 R9 D 3 Q1 B 3 J3 C 3 R3 B 3 RIO F 3 Q2 C 3 J4 D 3 R4 C 3 R11 F 3 Q3 D3 JS E 3 RO C 3 R12 F 3 Q4 E 3 Figure 8 9 Sweep Gate Amplifier A8I Component Identification ...

Page 81: ...Service Figure 8 10 Sweep Gate Output Amplifier A8 Schematic 3 8 15 ...

Page 82: ...lder ing from either side of the board 6RI0 GRID GRID C11 C12 C1G C14 CIS C16 CR1 CH3 CR3 cne CR5 RIO ni 1 R13 R13 R14 R1S R1fi R17 R18 R19 R20 R21 R22 R33 R35 R26 R27 R28 R39 R30 R31 R32 GRID REF GRID REF LOG DESIG LOG DESIG Figure 8 11 Gate Amplifier A7 Comportent Identification 8 16 ...

Page 83: ...ollows LINE power ON Plug ins not installed No signal input INT fully CCW SCALE fully CCW FOCUS fully CW POSITION centered EXT VERNIER CAL DISPLAY EXT MAGNIFIER XI 2 All voltages are referenced to ground 3 All voltages measured with HP Model too MS2 input impedance 414A Auto Voltmeter ...

Page 84: ...R RS lOOK COMMON C3 OIUF Duar 1 AMPLIFIER 1 O TV f R3 3320 ijvr c Id i RI2 0 ra COMPLEMENTARY FEEDBACK AMPLIFIER NOTE MEASURED V0LTA6E lOOVFB 99 2 K t lOOV RS2 100 9 wv I2 6VF NOTE MEASURED VOQAGE CIA OF I2 6VF IS S SV SUE ...

Page 85: ...Service QRIO 6RID CHID CRID emo GRID GRin cesiG DESIG DESIG oesiG DESIG DESIG DESIG DESIG DESIG 19 E 4 io 0 4 Figure 8 13 Hori2ontdl Amplifier A5 C 8 18 ...

Page 86: ...ols as fol lows LINE power ON Plug ins not installed No signal input INT fully CCW SCALE fully CCW FOCUS fully CW POSITION EXT VERNIER CAL DISPLAY EXT MAGNIFIER XI 2 All voltages are referenced to ground 3 All voltages measured with HP Model 414A Auto Voltmeter 100 Mf2 input impedance ...

Page 87: ......

Page 88: ...Service Figure 8 15 Control Module A2 C 8 20 ...

Page 89: ...Service Figure 8 16 Control Module A2 Schematic 6 8 21 ...

Page 90: ...ice GRID RET OESIG 1 GRID 1 LDC REF DESIG GRID LOC Cl F 3 CR3 J 3 C3 D3 CP4 H 4 C3 i e CRG F 5 C4 IB CRS n s C5 l S R1 F 1 C6 1 1 R2 G4 CRI H 4 R3 F 4 CB2 3 R4 F 3 Figure 8 17 H V Oscillator Rectifier 6 22 ...

Page 91: ... f 5 j jr R9 1500 0 fsc iQ3 TO CRT FLOOD PATTERN 7 i TO CRT TLOO D Gun R7 43 OOD 7 Sv RIO 2 7 J k Cl JL 2 2uF Find 8Ea 0S2 5 0 7 S V n H 3 9E av J Lr 880 N F NS r R2 2 74 4 Q flNTgNSITvl H2oL2 I 0 V 7 OimiE R2I 5M C R22 2 FOCUS CT 1500 l6 25N 1 TO CRT Y X PIN S I REFERENCE DESIGNATIONS 5000 1 2 6V TRACE AL ON T0 TRACE 7 Align JT JA9L2 957 P 0 A2 1 CHASSIS Li 7 SI 5Z P 6 CRi 5 nsi W8 LI 01 3 Ri 25 ...

Page 92: ...ents transistor H V transformer diodes etc Voltage too high Check H V Adjust Check regulator components and feedback loop Typical case is increased resistance in regulator feedback loop Voltage too low Check H V Adjust Check regulator components and feedback loop Typical case is decreased resistance in regulator feedback loop or CRT loading supply NOTE Refer to CRT Intensity Troubleshooting Tips f...

Page 93: ...Service Figure 8 18 H V Multiplier 8 23 ...

Page 94: ...his by disconnecting CRT base socket and Post Accelerator High Voltage connection With CRT disconnected the High Voltage circuit is not loaded by the CRT if it is at fault and the CRT is protected if the High Voltage supply is faulty NOTE 2 The CRT may be checked to determine if grid cathode voltage is correct Use a high impedance voltmeter VTVM which has isolated input terminals to measure grid c...

Page 95: ...Service Model 182C Figure 8 19 H V Regulator A10 Component Identification 8 24 ...

Page 96: ...led No signal input I NT fully CCW SCALE fylly CCW FOCUS fully CCW 2 All voltages are referenced to ground 3 Low voltages measured with HP Model 414A Auto Voltmeter 100 input impedance 4 To measure high voltages use HP Model K05 3440A 1000 1 Divider Probe and HP Model 3440A Digital Voltmeter with HP Model 3441A or 3444A plug in ...

Page 97: ...UNBLANKING SIGNAL FROM A7 GATE AMPLIFIER t 4 I 36VP P MO r l j H V osr Q RrmrifR Qi l p p I ce i C UF Cl 4 TOO R2 3 IM TOOK CE I I 024UFT 1 5 ...

Page 98: ......

Page 99: ... of this sheet and return it with the defective CRT to Hewlett Packard Company 1900 Garden of the Gods Road Colorado Springs Colorado 80907 Attention CRT QA To avoid damage to the tube while in shipment please follow the shipping instructions below warranty credit is not allowed on broken tubes SHIPPING INSTRUCTIONS It is preferable that the defective CRT be returned in the replacement CRT carton ...

Page 100: ...ROM NAME COMPANY ADDRESS HP instrument MODEL NO HP instrument SERIAL NO CRT SERIAL NO Please describe the failure and if possible show the trouble on the appropriate CRT face below HEWltTT PACKAtD COMPANY 1900 GARDEN Of IMt GODS OAO COLORADO SPRINGS COIORADO USA ...

Page 101: ...AOl 467 6714 TWS IIA934 4M1 VI4H3INIA PC bl 8SJ4 2111 Ownctt Road 343 0 r l IKMI W9 M 1 TWX I0 9WO S7 WASHINGTON AeKHipIO 0 ic Pk ITU I141H U AcIlriM e04 iM W 4H I TWl 9lfrM 03 ivcsr VWGINIA CkvkfW fJOS H9 1M0 WIM9NSIN 4 W B l i A M 4 r 117 lAhiiBM 9 227 TPI 414 M 09 PM U S AAEAS NOT USrCD kentacT ne igNui oni pn N Mv AMiali 0e C 4 2wNB CNMerpi PlDMl Mp MiMf SUIJP lUlONl Tl i CHBpl l M WCkkC N liN...

Page 102: ...OO 141 6O0 Ci i Hcwrtpo t l4ri F4CI4 6 8virr4 4 PI ua lO WiellFr Sl 4 l PO Goi I6l BtCttdA AST 78V7 r r 48 6104 Call HfHPAPCl ClfiBN J Ut He Utr PaeMrO i t air9 Pii LIO 9fid kieo 49 C PdoiT lamce IriilaN OWfPVloO 000 r l 24 1844 eCYtON Uril4d Cl4 l i4llk US PV ON 611 40 Park Si CiloaM 7 I4l 7669 CMi noiPOini CoiO CVRRUS KTOrofitcs 14 C 480li0t A iFitOpovVs POM PO 1197 C7 HittllO III 4 6 l 6 Ca if ...

Page 103: ...0 o n S o r O O O o M n o rlrticia r O Ok O O O O ...

Page 104: ...HEWLETT ihin PACKARD 00182 90906 PniNTED IN U S A ...

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HP 182C, Operating And Service Manual

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