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130C Oscilloscope Operating & Service Manual

Contents

1. Model 130 Section V E Figure 5 7 m 5 3 L cm ae S a cs 1 O THES T 1 I00v 250v VERLUST ON PUT DIFFERENTIAL 1 y SIL 553 PLATE FEEDBACK i n z yea T vos PINT T M E 04 AMPLIFIER L 100 TO ven PIN2 ur T 2 34 Y ml REFERENCE od for DIFFERENTIAL NL pf QESIGNATORS toov TO _ i VASA AL EC 1 Co 09 27 4 53 nai 9 19k k er TEE MK 252 99 i AN ES 9 4 2 7207 t SLU cea DELETED vet 1 vio 190 O H t za T t BE 1 1 2 meNon 43 3 R68 AND Ll n VERTICAL JUNCTION 1 SENSITIVITY HH R64 AND Li VERWIER zs f cat n coax 29 09 b Rag AW EIE 2 LS GI menr A AA ES CAPACITY 2 IMORTING ns 5 SR PER E Eid fa EJ 85 4 1 5 MU m ST E n 4 lens L P SRNL Regt m 4 Omar Bal 19 2
2. Modei 130 m E e mim ds a 2 1 Y AMPLIFIER due 1 1 494 1 T n ur Er n mc x 3 fe a n Ex T BRE um i r gara o LET 5 s ot ER EET tT 5 cH 9 m 5 1 t t Dd E MERE current gast 1 1 3 pes 3 UT BEL NE v dE H bei 2 i E SWE i i L BTA l CPPI EE ior v 3 sat i I Fey RC PH o Fo u c owe We us I I e ee Te I H L mm 1 EN au troy 9 o L 7 TI 9 CHE lt H H m Tee usi Cg TEE put 8 5 E LL HE L ECTS lua LU TE T TUO REFERENCE 0 6 H 3 BH ur B T EE e Eu 2s k 1 4 RON I 9 lr DES EI 5 To vi v E 4 EN nm 10 CATNODES CATHODE En
3. 5 5 8 1 Introduction 3 1 5 24 Troubleshooting 5 5 3 3 Front and Rear Panel 5 26 Isolating Troubles to a Major Familiarization 3 1 Section gt eseese 5 5 3 6 Sensitivity ees 3 1 5 28 Power Supplies 5 5 3 8 DC Balance 3 1 5 29 Amplifiers 6 lt lt 5 5 3 10 Level ee ee eee 3 1 5 30 Sweep Generator 5 5 3 12 Normal Single 3 3 5 31 Low Voltage Power Supply 3 14 Beam Finder 3 3 Troubleshooting 5 5 3 16 Operational Check 3 3 5 33 Excessive Ripple 5 5 3 18 Operating Procedures 3 3 5 35 Loss of Regulation 5 5 3 20 Internally Triggered Sweep 5 38 High Voltage Power Supply Operation 3 3 Troubleshooting 5 9 3 22 Externally Triggered Sweep 5 41 Amplifier Troubleshooting 5 9 Operation 3 3 5 43 Unbalance s eie lt 5 9 3 24 Single Sweep Operation 3 3 5 45 Gain lt s so eee ees 5 9 3 26 Differential Input Operation 3 4 5 47 Low Frequency Noise 5 9 3 28 X Y Operation 3 4 5 49 Compression 5 9 3 30 Operating Considerations 3 4 5 51 Sweep Generator Troubleshooting 5 9 3 31 Use of Amplifier andInp
4. 1 usec 1 uSECONDS CM 1 usec 2 uSECONDS CM 5 usec 5 SECONDS CM 10 10 uSECONDS CM 10 usec 20 uSECONDS CM 50 usec 50 uSECONDS CM 100 usec 1 MILLISECONDS CM 100 usec 2 MILLISECONDS CM 500 usec 5 MILLISECONDS CM 1 msec 1 MILLISECONDS CM 1 msec 2 MILLISECONDS CM 5 msec 5 MILLISECONDS CM 10 msec 10 MILLISECONDS CM 10 msec 20 MILLISECONDS CM 50 msec 50 MILLISECONDS CM 100 msec 1 SECONDS CM 100 msec 2 SECONDS CM 500 msec 5 SECONDS CM 1 sec 1 SECONDS CM 1 sec 2 SECONDS CM 5 sec 5 SECONDS CM 01879 4 Model 130C Table 5 4 Sweep Magnifier Calibration Sweep Time at 1 msec cm Time Mark Time Marks Generator Output Magnifier 10 em 100 usec b Apply a 100 kc signal from the Oscillator to the vertical input Adjust Oscillator amplitude for 2 cm deflection c Remove grounding link from Z AXIS INPUT rear panel and connect signal from Oscillator to Z AXIS INPUT d At normal intensity the top of the sine wave Should be extinguished 5 23 SINGLE SWEEP a Set SWEEP TIME 10 MILLISECONDS CM NORMAL SINGLE NORMAL LEVEL b Switch from NORMAL to SINGLE The ARMED light should come on c Set LEVEL to AUTO A single sweepshould occur and the ARMED light should go out 5 24 TROUBLESHOOTING 5 25 The following paragraphs outline procedures for locating and eliminating malfunctions Be sure that the trouble cannot be eliminated by making
5. than 0 1 mv p p Range 0 to 300v 1 8 Accuracy 19 LV Power Supply Vert Output Stage Current Horiz Output Stage Current Sweep Stability Model 412A CAQI 412 Range 0 to 3 kv 1 8 Accuracy 3 HV Power Supply Model 11044A Voltage Divider with Model 410B C AN USM 116 adjusted to 3 accuracy Vert Neut Vert Atten Comp Horiz Neut Horiz Atten Comp Model 211A TS 583B U Frequency 10 kc and 50 kc Output 0 to 55V Square Wave Generator L C Meter Vert Input Cap Tektronix Type 130 or Horiz Input Cap AN URM 90 or Alignment Model 10403A Attenuator Designation for Military Preferred Instrument 5 0 01879 1 Section V Paragraphs 5 9 to 5 13 c Adjust Vertical VERNIER for exactly 10 cm deflection d Disconnect Voltmeter Calibrator and apply sig nal from 500 MV CALIBRATOR to vertical input e Deflection should be between 9 8 and 10 2 cm f Disconnect the calibrator signal 5 9 VERTICAL CALIBRATOR a Set Vertical SENSITIVITY 1 MV CM Voltmeter Calibrator output 5 mv b Adjust vertical VERNIER for exactly 4 cm deflection c Set vertical SENSITIVITY to CAL d The deflection should be between 3 88 and 4 12 cm e Disconnect the Voltmeter Calibrator 5 10 VERTICAL BANDWIDTH a Set Vertical SENSITIVITY 1 M
6. H 160 cut 1 DR E DI I 394 FREERUN t TOON INTEGRATOR Mon L J 1768 m INTERNAL SYNC COPYRIGHT 1964 HEWLETT PACKARD FROM VERT AMP T THRU r RED _ GENERATOR ASSY 7 I dil GATE TI Ma a GENERATOR VIOJA v1048 VIO4B r TRIGGER GENERATOR I WHT RED ORA qaem hua MTM N 219 Hoovta 5 4 101 DAN LE NM SWE Jj is LOCK QUT at ok fuse p 160K aibi n t 5 4 9 25K 100 A PU 7 1096 FROM HORIZ ATTEN SW SWEEP POSITIONS u 5 20 D GFF EU Nosio FOLLOWE ATM ve 1 EI 1165 NER 6008177 sode cel suc kn RE Faig t TIME 8156 Tiir vet MK 802 164 SWEEP TIME SWITCH RITA SHOWN IN SO VFH j SEE SWITCH SCHEMATIC le FOR OTHER POSITIONS D t 250V 100v 100v 01879 3 5 19 Section V Model 130C Figure 5 12 Fi
7. te sty 8 INTERNAL SWEEP X1 SWEEP TIME 1 MILLISECONDS CM TRIGGER SOURCE SLOPE EXT LEVEL AUTO b A baseline should be displayed with no signal applied c Apply a 500 ke signal from the Oscillator to the vertical input d Set TRIGGER SOURCE SLOPE INT SWEEP TIME gt 1 uSECONDS CM e Adjust Oscillator amplitude for 0 5 cmdeflection f Vary Oscillator frequency from 500 ke to 50 cps keeping amplitude constant at 0 5 cm Stable triggering should occur over the entire range g Set LEVEL to h Vary Oscillator frequency from 10 to 500 keeping amplitude constant at 0 5 cm Stable trig gering should occur over the entire range Note some adjustment of LEVEL may be necessary at the high frequency end of the range i Apply a 500 ke signal from the Oscillator to the vertical input and the external trigger input 9 3 Section V Paragraphs 5 18 to 5 22 j Set LEVEL 7 AUTO External trigger input TRIGGER SOURCE SLOPE EXT Vertical SENSITIVITY 1 VOLTS CM Vertical VERNIER CAL SWEEP TIME 1 uSECONDS CM Vary Oscillator frequency from 500 kc to 50 keeping amplitude constant at 0 5 cm Stable trig gering should occur over the entire range m Set TRIGGER LEVEL to n Vary Oscillator frequency from 5 cps to 500 ke keeping deflection constant at 0 5 cm Stable trig gering should occur o
8. 0 05 uf 20 400 fxd cer 4700 pf 20 80 4000vdew C C C C C C fxd 0 01 uf 20 1000vdcw C fxd my 0 1 uf 10 400vdcw C fxd cer 100 pf 600vdcw C fxd cer 4700 pf 20 80 4000vdcw C fxd cer 4700 pf 20 80 4000vdcw C C C C C C C C fxd my 0 22 uf 10 400vdcw fxd 4700 20 80 4000vdcw fxd 1000 pf 20 100 500vdcw fxd cer 4700 pf 20 80 4000vdcw fxd 4700 pf 20 80 4000vdew fxd 4700 pf 20 80 4000vdcw fxd cer 4700 pf 20 80 4000vdcw fxd 100 pf 600vdcw Not assigned C fxd my 2200 pf 10 600vdcw Not assigned fxd elect 150uf 10 50 250vdcw C fxd cer 0 1 uf 20 80 50vdew Part No hp Model 130C RCM15E201J RCM15E201J 29C214A3 29C214A3 DD200 DD200 801010X5G01022 801010X5G0102Z 224P22402 D39330 6447 RCM15E101J 9 214 3 29 214 3 126 29 214 3 160 10494 33C17A DA172 097CB 29C214A3 160P 10494 Type E DA172 097CB DA172 097CB 160P22494 DA172 097CB 801010X5G01022 DA172 097CB DA172 097CB DA172 097CB DA172 097CB Type E 01879 5 Model 130C Table 6 2 Replaceable Parts Cont d Section VI Table 6 2 Description Br B See Table 6 1 Mfr Part No C423 C424 C425 C426 C440 C441 C442 C443 C444 C445 C460 C461 C462 C463 C464 C465 C466
9. Set VERNIER to CAL for calibrated sweep time Adjust LEVEL to trigger at desired point on triggering waveform Figure 3 5 Internal Sweep with External Trigger 3 8 Model 130C 01879 1 Model 130C Section II Figure 3 6 VERTICAL SENSITIVITY VERMER Set SENSITIVITY and SWEEP TIME as desired Set TRIGGER SOURCE SLOPE for internal or external triggering as required Set LEVEL to proper triggering point Do not use AUTO or FREE RUN see Paragraph 3 12 Set NORMAL SINGLE to SINGLE ARMED indicator should glow Apply vertical signal Apply trigger signal if required i e if using external trigger otherwise sweep will trigger internally from vertical circuits To re arm sweep switch to NORMAL and back to SINGLE ARMED indicator will glow when sweep is armed and ready to be triggered Figure 3 6 Single Sweep Operation 01879 1 3 9 Section III Figure 3 7 3 10 Disconnect grounding link from center input terminal Connect positive going signal to left hand terminal Connect negative going signal to centertermi nal Set SENSITIVITY for desired vertical deflec tion When using high sensitivities i e toward 0 2 MV CM and internal DC coupling check for DC BALANCE Figure 3 3 if necessary Set VERNIER to CAL for calibrated sensitivity Follow the procedure above if differential horizontal input is desired Figure 3 7 Differential Operation Model 130C 01879 1 Mode
10. 3101 0040 6603JM SPEC 2100 0347 A s slide dual dpdt A r var comp 4 x 25k ohms 30 1 4w Not assigned A sweep time switch 130C 19G Not assigned horizontal amplifier circuit board includes A205 horizontal attenuator switch s slide dual dpdt 130C 65H 130C 19F 3101 0040 6603JM SPEC r fxd comp 2500 4000 250 ohms 30 1 4w amplifier input circuit board includes R231 R232 XV201 var 0 7 3 0 pf dual 2100 0432 A A A A 130C 65M A A 0121 0111 Not assigned 130C 65L 130C 11A 2100 0378 A hvps circuit board A rectifier includes C311 T301 V304 V305 A r var comp 1M 500k 200k ohms 30 1 4w Not assigned 130C 65K 2100 0377 0160 0917 lvps circuit board var comp 500k 5k 3k ohms 30 1 4w C fxd my 0 1 uf 20 600 vdcw matched pair NSR p o C9 C var cer 1 5 7 pf 500vdcw 0130 0003 0130 0003 0130 0001 0130 0001 0140 0090 0140 0090 var cer 1 5 7 pf 500vdew var cer 7 45 pf 500vdcw var cer 7 45 pf 500vdew fxd mica 200 pf 5 500vdcw fxd mica 200 pf 5 500vdcw RCMI15E201J RCM15E201J 0130 0003 0130 0003 0130 0001 0130 0001 0130 0006 var cer 1 5 7 pf 500vdcw var cer 1 5 7 pf 500vdew var cer 7 45 pf 500vdew var cer 7 45 pf 500vdew var cer 5 20 pf 500vdcw var cer 5 20 pf 500vdew fxd my 0 015 uf 10 200vdcw 0130 0006 0160 0194
11. Table 1 3 Description of Options Option Number Description External graticule with scale light in lieu of internal graticule Specify phosphor P1 P2 P Pil P31 available Rear terminals in parallel with front panel terminals Three pin AN type connectors supplied for horizontal and vertical signal inputs BNC con nector for trigger source 6 31 32 in x 19 in x 3 16 in front panel suitable for attaching your own handles 1 2 01879 2 Model 130C Section II Paragraphs 2 1 to 2 16 SECTION Il INSTALLATION 2 1 INCOMING INSPECTION 2 2 MECHANICAL CHECK When the Model 130C is received verify that the package contents are complete and as ordered Inspect the instrument for any physical damage suchas a scratched panel surface broken knob or connector etc incurred in shipping Remove the instrument covers and visually check inside for loose or damaged components To facilitate possible reshipment keep the original packing if recommended for reuse see Paragraph 2 12 until a satisfactory inspection of the instrument is com pleted If damage is found file a claim with re Sponsible carrier or insurance company and refer to the warranty page in this manual 2 3 PERFORMANCE CHECK The Model 130C may be checked for electrical operation withinthe specifi cations of Table 1 1 by following the procedures of Paragraph 5 3 These procedures allow a complete performance check with no internal conne
12. CR si CR avalanche 5 76 v Not assigned CR si CR avalanche 11 9 v DS NE 2E neon glow Not assigned DS indicator red F cartridge 2 amp 250 v J red binding post J red binding post J black with shorting clip Not assigned 56289 33C17A 56289 D32440 56289 29C214A3 56289 D40728 DFP 56289 29C214A3 56289 29C214A3 56289 33C41 56289 D40728 DFP 56289 33C17A 56289 30D106G025BB4 00853 PLI 56289 33C41 56289 29C214A3 56289 D32429 hp hp 93332 D2361 hp hp hp hp hp hp hp hp hp hp hp hp 24455 NE 2E 08717 858R 75915 312 002 hp hp hp A Model 130C Table 9 Table 6 2 Replaceable Parts Cont d Ref Description 1510 0010 J red binding post hp 1510 0011 J black binding post Not assigned 1510 0010 J red binding post 1510 0010 J red binding post 5060 0627 J black with shorting clip Not assigned 1251 0148 J ac power receptacle Not assigned 1251 0202 J banana jack black 9140 0157 L fxd rf 680 uh 9140 0157 L fxd rf 680 uh Not assigned 9140 0022 L fxd rf 500 uh Not assigned 9140 0157 L fxd rf 680 uh 9140 0157 L fxd rf 680 uh Not assigned 5060 0408 L alignment NSR p o W401 NSR p o W401 1853 0030 si pnp 1853 0030 si pnp 1853 0036 si pnp 2N3906 2N3906 1853 0036 si pnp 2N3906 2N3906 Not assigned 1854 0003 Q si npn Not assigned 1853 0030 Q si pnp 1853 0030 Q si pnp 1853 0036 Q si pnp 2N3906 2N3906 1853 0036 Q
13. On less sensi live ranges response extends to DC SENSITIVITY 0 2 mv cm to 20 v cm 16 ranges in 1 2 5 10 sequence with an attenuator accuracy within 3 Vernier permits continuous adjust ment of sensitivity between ranges and extends minimum sensitivity to at least 50 v cm INTERNAL CALIBRATOR Approximately 350 cps square wave 5 mv 3 Automatically connected for checking gain whenthe sensitivity is switched to CAL INPUT IMPEDANCE 1 megohm shunted by 45 pf constant on all sensitivity ranges MAXIMUM INPUT 600 v peak dc 4 ac BALANCED INPUT On all sensitivity ranges COMMON MODE REJECTION dc to 50 kc At least 40 db from 0 2 mv cm through 0 1 v cm sensitivity common mode signal not to exceed 4 volts p p At least 30 db from 0 2 v cm to 20 v cm common mode signal not to exceed 4 volts p p on 0 2 v cm 40 v p p from 5 v cm through 2 v cm 400 volts p p from 5 v cm through 20 v cm PHASE SHIFT With 1 relative phase shift at frequencies up to 100 kc with verniers in CAL position and equal input sensitivities GENERAL CALIBRATOR Approximately 350 cps 500 mv 2 available at front panel CATHODE RAY TUBE hp Type 5083 0353 P31 Internal Graticule mono accelerator 3000 volts accelerating potential P2 P and P11 phosphors are available Equipped with non glaring safety glass faceplate Amber filter supplied with P INTERNAL GRATICULE Parallax free 10 cm x 10 cm marked in cm squares 2 mm
14. Lerco Electronics Inc National Coil Co Vitramon Inc Gordos Corp Methode Mfg Co Chicago Ill Dage Electric Co Inc Franklin Ind Siemon Mfg Co Wayne Weckesser Co Chicago Huggins Laboratories Sunnyvele Calif Hi Q Div of Aerovox Corp Olean N Y Thordarson Meissner Inc Solar Manufacturing Carlton Screw Co Microwave Associates Inc Excel Transformer Co Industrial Retaining Ring Co Automatic amp Precision Mfg Reon Resistor Corp Litton System Inc Adler Westrex Commun Div New Rochelle N Y R Troncis Inc Jamaica N Y Rubber Teck Inc Gardene Calif Hewlett Peckard Co Moseley Div Pasadena Calif So Pasadena Calif Mamaroneck N Y Mt Carmel Ill Los Angeles Calif Chicago III Burlington Mass Oakland Calif Irvington J Englewood N J Yonkers N Y Microdot Inc Sealectro Corp Code No 98376 98731 98734 98821 98978 99109 99313 99378 99515 99707 99800 99848 99934 99942 99957 Model 130C Monvfacturer Address Zeto Mfg Co Burbank Calif General Mills inc Electronics Div Minneapolis Minn Paeco Div of Hewlett Packard Co Palo Alto Calif North Hills Electronics inc Glen Cove international Electronic Research Corp Burbank Calif Columbia Technical Corp New York Varian Associates Palo Alto Calif Atlee Corp Winchester Mass Marshall ind Elect Products Div San Marino Calif Contro
15. See Section I Copyright HEWLETT PACKARD COMPANY 1962 1501 PAGE MILL ROAD PALO ALTO CALIFORNIA U S A 1818 5 PRINTED NOV 1966 Table of Contents Model 130C TABLE OF CONTENTS Section Page Section Page I GENERAL INFORMATION 1 1 5 9 Vertical Calibrator 5 2 1 1 Description 1 1 5 10 Vertical Bandwidth gt 5 2 1 3 Manual Identification and Changes 1 1 5 11 Vertical Common Mode Rejection 5 2 1 5 1 2 5 12 Horizontal Sensitivity 5 2 1 7 Equipment Supplied or Available 1 2 5 13 Horizontal Calibrator 5 2 1 9 Options Covered 1 2 5 14 Horizontal Bandwidth 5 3 I INSTALLATION e 9 0909 xo om omis 2 1 5 15 ek 2 1 Incoming Inspection gt 2 1 5 16 Phase Shift 5 3 2 4 Rack Installation 2 1 2 6 Cooling e e apne E 2 1 5 11 Triggering gt 5 3 2 8 Power Requirement 2 1 9 18 Trigger Point and Slope 5 4 5 19 Sweep Calibration 5 4 2 10 Instrument Ground 2 1 5 20 Samen Vernier gt e x 5 4 2 12 Repackaging for Shipment 2 2 1 Dub a a 5 4 2 15 Installation of Amber Filter 2 1 5 22 Intensity Modulation 5 4 III OPERATION ee oe ww 3 1 5 23 Single Sweep
16. The Waterbury Conn 18583 Curtis Instrument Inc Mt Kisco N Y 03954 Singer Co Diehl Div 08717 Sloan Company Sun Valley Calif 18873 DuPont and Co Inc Wilmington Del Finderne Plant Sumerville N J 08718 ITT Cannon Electric Inc Phoenix Div 18911 Durant Mfg Co Milwaukee Wis 04009 Arrow Hart and Hegeman Elect Co Phoenix Arizona 19315 Bendix Corp The Hartford Conn 08792 CBS Electronics Semiconductor Eclipse Poineer Div Teterboro N J 04013 Taurus Corp Lambertville N J Operations Div of C B 5 Inc 19500 Thomas A Edison Industries Div of 04222 Hi Q Division of Aerovox Myrtle Beach 5 C Lowell Mass McGraw Edison Co West Orange N J 04354 Precision Paper Tube Co Chicago III 08984 Mel Rain Indianapolis Ind 19644 LRC Electronics Horseheads N Y 04404 Dymec Division of Hewlett Packard Co 09026 Babcock Relays Div Costa Mesa Calif 19701 Electra Mfg Co Independence Kenses Palo Alto Calif 09134 Texas Capacitor Co Houston Texes 20183 General Atronics Corp Philedelphie Pa 04651 Sylvania Electric Products Microwave 09145 Atohm Electronics Sun Valley Celif 21226 Executone Inc Long islend City N Y Device Div Mountain View Calif 09750 Electro Assemblies Inc Chicago Hl 21335 Bearing Co The New Britain Conn 04713 Motores Inc Semiconductor Prod Div 09569 Mallory Battery Co of 21520 Fansteel Metallurgical Corp N Chicago II Phoenix Arizona Canada
17. b Center spot with POSITION control c Switch VERNIER out of CAL position d Adjust R47 R238 for minimum shift of spot when VERNIER is rotated 9 73 COARSE DC BALANCE a Set DC BALANCE mid range SENSITIVITY BAL VERNIER CAL b Center spot with POSITION control c Switch AMPLIFIER coupling to DC d Adjust R48 R234 Coarse Bal to center the Spot on CRT 9 74 OUTPUT STAGE CURRENT a Set POSITION lt lt 00000 to center Spot SENSITIVITY 20 VOLTS CM b Measure the collector voltage of transistors Q3 and Q4 Adjust R59 R228 so the average of the two voltages is 15 volts c With a DC Voltmeter measure and note the deflection plate voltages Green and White wires on amplifier board Adjust R83 R276 so the average of the two voltages is 140 volts 5 11 Section V Paragraphs 5 75 to 5 79 d Repeatstepsband c to obtain specified voltages e This step applies only to thehorizontalamplifier adjustment and should be performed only whena more accurate calibration is needed for useofthe 10 USEC ONDS CM INTERNAL SWEEP X50 combination Setting When more accurate calibration is desired for this one sweep combination make same settings as in step a and proceed as follows 1 Connect a shorting wire between the green and white wires deflection plate leads on the horizontal ampliier circuit board 2 Clip the probe of a Model 428A B DC
18. 0727 0433 0727 0434 0727 0900 UI III III 385 888858 88885 65658 Not assigned fxd ww 5 ohms 5 5w hp fxd comp 100k ohms 10 1 2w EB 1041 fxd comp 100k ohms 10 1 2w EB 1041 fxd comp 470 ohms 5 1 4w CB 4715 fxd comp 470 ohms 5 1 4w CB 4715 0813 0017 0687 1041 0687 1041 0683 4715 0683 4715 fxd 45 3k ohms 1 1 2w fxd metflm 45 3k ohms 1 1 2w 0757 0977 0757 0977 JAD NSR p o A4 var comp 50 ohms 10 2w hp fxd comp 100 ohms 10 1 2w EB 1011 2100 0138 0687 1011 fxd metflm 49 9k ohms 1 1 2w fxd metflm 49 9k ohms 1 1 2w hp fxd comp 36k ohms 5 1 2w EB 3635 fxd comp 36k ohms 5 1 2w EB 3635 fxd metflm 8200 ohms 5 1 2w 0757 0370 0757 0370 0686 3635 0686 3635 0758 0048 fxd comp 10k ohms 5 1 2w EB 1035 fxd comp 150k ohms 5 1 4w CB 1545 fxd comp 150k ohms 5 1 4w CB 1545 NSR p o A4 Not assigned 0686 1035 0683 1545 0683 1545 mu mugs AA 01879 5 6 7 Section VI Model 130C Table 6 2 Table 6 2 Replaceable Parts Cont d Ref Description 0686 1045 4 0686 1045 0727 0186 0727 0186 0727 0205 fxd comp 100k ohms 5 1 2w fxd comp 100k ohms 5 1 2w fxd 33 2k ohms 1 1 2w fxd 33 2k ohms 1 1 2w fxd depc 92 6k ohms 1 1 2w 0727 0205 0686 4335 0686 4335 2100 0382 2100 0373 fxd 92 6k ohms 1 1 2w fxd comp 43k ohms 5 1 2w fxd comp 43k ohms 5 1 2w var comp 500k ohm
19. D39330 6447 33C41 fxd elect 2000 uf 10vdcw fxd cer 0 1 uf 20 80 50vdew 0180 0314 0150 0084 aa 6 2 01879 5 Model 130C Ref ar ue 2 0140 0039 0160 0155 0150 0012 0150 0012 0150 0035 0150 0035 0150 0069 0150 0069 0160 2056 0150 0012 0150 0052 0140 0041 0150 0058 0150 0012 0150 0012 0150 0050 0150 0012 0150 0115 0140 0005 0140 0146 0150 0074 0150 0050 0150 0052 0150 0052 0150 0052 0150 0069 0170 0018 0170 0019 0160 0314 0140 0018 0140 0006 0130 0001 0130 0006 0160 0917 0130 0001 0130 0001 0130 0001 0130 0001 0130 0003 0130 0003 01879 5 NSR p o 46 NSR p o A6 c c c Not assigned Not assigned AAZ AAAAA Not assigned C fxd my 0 1 uf 20 600vdew matched pair Table 6 2 Replaceable Parts Cont d Description See Table 6 1 Mfr Part No C fxd mica 47 pf 5 500vdew fxd my 3300 10 200vdew fxd 0 01 uf 20 1000vdew fxd 0 01 pf 20 1000vdew fxd cer 20 pf 10 600vdew fxd cer 20 pf 10 600vdew fxd cer 1000 pf 20 100 500vdew fxd cer 1000 pf 20 100 500vdew fxd my 0 22 20 200vdew fxd cer 0 01 uf 20 1000vdcw
20. Part No DC 1 R5 Change R185 to R fxde 1 8 megohms 1 1 2w hp Part No 0727 0285 Mfr 19701 Mfr Part No DC 1 2 CR5 Change R329 to R var ganged 10K ohms 20 lin 1 4w hp Part No 2100 0150 Mtr hp Delete R330 hp Part No 0687 1011 CHANGE 15 Figure 5 7 Change wht lead from emitter of Q3 and junction of R21 R22 to wht gra Change wht gra leadfrom emitter of Q4 and wiper of S1F to wht Figure 5 16 Add C243 001 1 in parallel with R258 Lift WHT YEL lead from fixed contacts of switch S202H and reconnect it to R251 R252 junction Lift WHT GRA lead from R259 R260 junction and reconnect it to movable arm of switch S203 Table 6 2 Add C243 C fxd 001 uf 10 hp Part No 0160 0153 Mfr 56289 Mfr Part No 192P10292 01879 5 Model 130C Appendix II APPENDIX Il OPTIONS OPTION 05 This option consists of an external graticuletype CRT instead of the internalgraticule type normallyinstalled in the Oscilloscope The graticule illuminating circuit as shown in Figure II 1 is alsoincludedinthis option while the TRACE ALIGN circuit L302 R329A B has been removed Illumination of the external graticule is controlledby the SCALE control that has been added to the front panel in place of the TRACE ALIGN con trol Refer to Table II 1forreplaceable parts for this option 130C A 26 Figure II 1 Option 05 Schematic Diagram OPTION 06 This option consists of rear panel connectors wired in pa
21. Switch Division Controls Co of America EI Segundo Calif Delevan Electronics Corp East Aurora N Y Wilco Corporation Indianapolis ind Renbrandt Inc Boston Mass Hoffman Electronics Corp Semiconductor Div EI Monte Calif Technology Instrument Corp of Calif Newbury Park Calif THE FOLLOWING HP VENDORS HAVE NO NUMBER ASSIGNED IN THE LATEST SUPPLEMENT TO THE FEDERAL SUPPLY CODE FOR MANUFACTURERS HANDBOOK 0000F Malco Tool and Die Los Angeles Calif 0000M Western Coil Div of Autometic Ind Inc Redweod City Calif 00002 Willow Leather Products Corp Newark N J 000AA British Radio Electronics Ltd Washington D C 000AB England 00088 Precision Instrument Components Co Van Nuys Calif 000MM Rubber Eng amp Development Hayward Calif 000NN D Mfg Co San Jose Calif 00000 Cooltron Oakland Calif 000WW California Eastern Lab Burlington Calif 000YY 5 Smith Co Los Angeles Calif From FSC Handbook Supplements Dated JULY 1965 Dated NOV 1962 H4 1 H4 2 01879 1 Model 130C Appendix I APPENDIX 1 MANUAL CHANGES This appendix contains information on changes required to adapt this manual to an instrument with serial prefix listedinthetable below Checkforyourinstru ment serial prefix and make numbered changes in dicated Note that these changes adapt the manual to cover a particular instrument as manufactured and therefore willnotapply toan instrument subsequently mo
22. ammeter around the black lead from the hori zontal POSITION control R221B to the ampli fier board 3 Adjust R276 for a Milliammeter reading of 15 ma 4 Disconnect Milliammeter and remove shorting wire 5 75 GAIN a Connect the Voltmeter Calibrator to the amplifier input terminals shorting bar in place b Set SENSITIVITY to 0 1 VOLTS CM c Set output of Voltmeter Calibrator to 1 volt p p d Set R69 R263 Gain for exactly 10 cmdeflection on the CRT 5 76 NEUTRALIZATION a Connect the 750 output of the Square Wave Generator to the Model 130C amplifier inputterminals connect between left terminal and center terminal with grounding link in place b For vertical neutralization adjustment proceed to step c 1 For horizontal neutralization adjustment only connect the Oscillator output to the Model 130C vertical input and to the external sync input of the Square Wave Generator proceed to step c 2 c Make appropriate settings as follows 1 For vertical neutralization only set SWEEP TIME 5 uSECONDS CM Horiz SENSITIVITY INTERNALSWEEP X1 Vertical SENSITIVITY 0 2 VOLTS CM 2 For horizontal neutralization only set Vertical SENSITIVITY 5 VOLTS CM Horizontal SENSITIVITY 0 2 VOLTS CM d Set Square Wave Generator frequency to 50 kc For horizontal neutralization also set Oscillator frequency to 25 kc Obtain display as follows 1 For vertical adjustment only set Square Wa
23. applied to one grid of V101 as determined by setting of the trigger slope control S101 The other grid is connected to LEVEL control R116 through S101 The setting of R116 determines the DC level on one half of V101 and thus the point at which the trigger signal will cause V101 to conduct The output of V101B drives trigger generator V102 which provides the waveform to drive the gate generator When S102 is in FREE RUN no trigger is needed to switch the gate generator to start a new sweep see Paragraph 4 26 When S102 is in AUTO trigger generator V102 is converted to a free running multivibrator R124 is placed in circuit by S102C with a repetition rate of 40 to 50 cps Switch section S102B grounds one grid of V101 depending on slope selected by S101 and AC couples the trigger signal through C113 to V102A This arrangement allows the trigger to be generated at the approximate zero crossing of the input signal 4 19 GATE GENERATOR 4 20 The square wave generated by V102 is differ entiated by C115 and R130 and the positive spike is clipped by CR111 Gate Generator V103A and V104B operates as a Schmitt Trigger circuit with wide hysteresis limits The negative Spike through C116 to the grid of V103A causes the gate generator to change states starting the sweep As the gate gen erator switches states the positive output at V103A plate goes to cathode follower V104A which provides the unblanking signal to the CRT through the HV p
24. fxd cer 0 05 uf 20 400vdew fxd mica 100 pf 5 500vdew fxd cer 2 2 pf 0 25 pf 600vdcw fxd cer 0 01 uf 20 1000vdew fxd cer 0 01 uf 20 1000vdew fxd cer 1000 pf 600vdcw fxd cer 0 01 uf 20 1000vdcw fxd cer 27 pf 10 500vdew fxd mica 27 pf 10 500vdew fxd mica 82 pf 5 300vdcw fxd cer 7 pf 0 5 pf 500vdew fxd 1000 pf 600 fxd 0 05 uf 20 400vdew fxd cer 0 05 uf 20 400vdcw fxd cer 0 05 uf 20 400vdew fxd cer 1000 pf 20 100 500vdcw ot assigned fxd my 1 uf 5 200vdew fxd my0 1 uf 5 200vdew my 0 01 uf 5 400vdcw fxd mica 1000 pf 5 500vdew fxd mica 82 pf 10 500vdew var cer 7 45 pf 500vdew var cer 5 20 pf 500vdew NSR p o C209 var 7 45 pf 500vdew var cer 7 45 pf 500vdcw var cer 7 45 pf 500vdew var cer 7 45 pf 500vdcw var cer 1 5 7 pf 500vdew var cer 1 5 7 pf 500vdew Section VI Table 6 2 29C214A3 29C214A3 DD200 DD200 801010X5G0102Z 801010X5G0102Z 224P22402 29C214A3 33C17A RCM15E101J 301 000 COJO 229C 29C214A3 29C214A3 Type E 29C214A3 CC20 27 RCMI15E270K RDMI15F820J 301 000 COHO 709D Type E 33C17A 33C17A 33C17A 801010 5601022 621 10552 663UW RCM20E102J 6 3 Section VI Table 6 2 Ref 0130 0003 0130 0003 0140 0090 0140 0090 0
25. fxd comp 240k ohms 5 1 2w fxd comp 220k ohms 5 1 2w fxd comp 27k ohms 10 1w var comp 5000 ohms 30 1 4w fxd comp 8200 ohms 10 1 2w fxd comp 4 7 megohms 10 1 2w fxd comp 7500 ohms 5 1 2w fxd comp 18k ohms 5 1w var comp 25k ohms 30 1 4w fxd comp 27k ohms 5 1 2w fxd comp 47k ohms 5 1 2w fxd comp 33 ohms 10 1 2w fxd comp 270 ohms 10 1 2w fxd comp 270 ohms 10 1 2w fxd comp 470 ohms 5 1 2w fxd comp 100 ohms 10 1 2w fxd comp 180k ohms 10 1 2w 22992 gg 22000 Not assigned NSR p o A104 NSR p o A104 NSR p o A104 NSR p o A104 var comp 50k ohms 30 1 3w fxd comp 22k ohms 10 1 2w fxd depc 9 megohms 195 1w fxd 36 megohms 1 2w fxd 9 megohms 1 1w fxd depc 4 54 megohms 1 1w fxd depc 1 81 megohms 1 1 2w R R R R R R R R N R R R R R R R fxd 900k ohms 1 1 2w ot assigned fxd comp 220 ohms 10 1 2w fxd comp 220 ohms 10 1 2w fxd 990k ohms 1 1 2w fxd 990k ohms 1 1 2w fxd 900k ohms 1 1 2w fxd 900k ohms 1 1 2w fxd 10 1k ohms 1 1 2w EB 1521 EB 1531 GB 1241 EB 5631 EB 8241 EB 1011 EB 2445 EB 2245 GB 2731 EB 8221 EB 4751 EB 7525 GB 1835 EB 2735 EB 4735 EB 3301 EB 2711 EB 2711 EB 4715 EB 1011 EB 1841 EB 2231 EB 2211 6 9 Section VI Model 130C Table 6 2 Ref TONDE Table 6 2 Replaceab
26. n re HEIL as Took Tes Ed RSS 0 8V ha 5 GI i 180K TO VA PIN 7 DI as o 280 zsov PX IS 601 T I 2507 x DEFLECTION neurrauzen 40V PLA m Mia ioov 306 8 re 5 Vertical Attenuator Amplifier Schematic 01879 5 5 17 sona Figure 3 9 Trigger AUN Component Boat Y 3 4 5 10 Ro zum m 3 5 3 30 Pete 0 AOL 6 Model 130C Section V Figure 5 11 ns usd ESOV AT ios Sue 1 100V A rm 2 FROM AI CRI GATE OUTPUT A wur DSIOI CATHODE FOLLOWER 120K T aor IDEA 4101 102 vol iun i 26028 46818 Eq E TRIGGER SEE TO Murino SISA jio Y sweee L DELETED l LYERNIER gare
27. or the 21st marker should occur within 0 3 cm of the right graticule edge e Check all the remaining SWEEP TIME ranges using the values shown in Table 5 3 f Disconnect the Time Mark Generator 5 4 Model 130C 5 20 SWEEP VERNIER Set SWEEP TIME SWERE VERNIER 5 BECONDS CM Fully LEVEL FREE RUN b Measure the time for the spot to travel 1 cm The time should be 12 5 seconds or greater 5 21 SWEEP MAGNIFIER a Set SVEEP TIME 1 MILLISECONDS CM SWEEP VERNIER e SAN Horizontal SENSE INTERNAL SWEEP TRIGGER SOURCE SLOPE INT LEVEL ode b Apply a signal from the Time Mark Generator to the vertical input Set the output of the Time Mark Generator to 1 millisecond c Adjust horizontal POSITION so that the first marker coincides with the left graticule edge The fifth marker should occur within 0 5 cm of the right hand graticule edge d Check the remaining magnifier ranges using the values shown in Table 5 4 The fifth eleventh or the 21st marker should occur within 0 5 cm of the right hand graticule edge 5 22 INTENSITY MODULATION a Set Vertical SENSITIVITY 10 VOLTS CM Vertical VERNIER CAL Horizontal SENSINI ie de e INTERNAL SWEEP X1 SWEEP TIME 10 uSECONDS CM Table 5 3 Sweep Calibration Time Mark SWEEP TIME Time Mark Generator Setting 10 cm
28. si pnp 2N3906 2N3906 Not assigned 5080 0427 Q ge pnp selected 1851 0017 Q ge npn 2N1304 2N1304 1850 0062 Q ge pnp Not assigned 5080 0427 Q ge pnp selected 1850 0062 Q ge pnp 1851 0017 Q ge npn 2N1304 2N1304 Not assigned 5080 0427 Q ge pnp selected 6 6 01879 5 Model 130C Section VI Table 6 2 Table 6 2 Replaceable Parts Cont d Ref Description ES 1850 0062 Q ge pnp 1850 0062 Q ge pnp 1850 0062 Q ge pnp Not assigned 1850 0038 0687 2211 0687 2211 0727 0269 0727 0269 ge pnp hp fxd comp 220 ohms 10 1 2w EB 2211 fxd comp 220 ohms 10 1 2w EB 2211 fxd 990k ohms 1 1 2w fxd depc 990k ohms 1 1 2w 88 0727 0158 0727 0158 0727 0259 0727 0259 0727 0210 fxd 10 1k ohms 1 1 2w fxd 10 1k ohms 1 1 2w fxd depc 990k ohms 1 1 2w fxd 990k ohms 1 1 2w fxd 111k ohms 1 1 2w 0727 0210 0727 0274 0727 0274 0727 0435 0727 0365 fxd 111k ohms 1 1 2w fxd 1 megohm 1 1 2w fxd 1 megohm 1 1 2w fxd 13 47k ohms 1 1 2w 5770 ohms 1 2 1 2w 0727 0431 0727 0101 0727 0437 0727 0432 0727 0436 fxd 2690 ohms 1 1 2w fxd 1030 ohms 1 1 2w fxd 509 ohms 1 1 2w fxd depc 253 ohms 1 1 2w fxd 101 ohms 1 1 2w fxd 50 4 ohms 1 1 2w fxd depc 25 2 ohms 1 1 2w fxd 9 76 ohms 1 1 2w
29. 100k ohms 5 1 2w EB 1045 EB 1045 0686 1045 fxd comp 100k ohms 5 1 2w 0727 0186 fxd depc 33 2k ohms 1 1 2w hp 0727 0186 fxd 33 2k ohms 1 1 2w hp 0727 0205 fxd 92 6k ohms 1 1 2w hp fxd 92 6k ohms 1 1 2w 0727 0205 0727 0371 fxd depc 9760 ohms 1 2 1 2w 0727 0429 fxd 4347 ohms 1 1 2w 0727 0428 fxd depc 2060 ohms 1 1 2w 0727 0427 fxd depc 798 ohms 1 1 2w 0727 0426 fxd depc 395 ohms 1 1 2w 0727 0425 0727 0424 0727 0423 0727 0422 0727 0705 fxd 196 5 ohms 1 1 2w fxd 78 4 ohms 1 1 2w fxd depc 39 2 ohms 1 1 2w fxd depc 19 5 ohms 1 1 2w fxd 7 50 ohms 1 1 2w muuuu o uuu mug 88888 88888 4335 4335 fxd comp 43k ohms 5 1 2w fxd comp 43k ohms 5 1 2w var comp 500k ohms 30 1 4w var comp 2500 ohms 1095 1 2w fxd comp 100 ohms 10 1 2w 0686 4335 0686 4335 2100 0382 2100 0373 0687 1011 EB 1011 22022 20 6 10 01879 5 Model 130C Section VI Table 6 2 Table 6 2 Replaceable Parts Cont d Ref Description fxd comp 100 ohms 10 1 2w 0687 1011 0727 0374 fxd depc 33k ohms 1 1 2w 0727 0374 fxd depc 33k ohms 1 1 2w 0767 0017 fxd metflm 17k ohms 5 3w 0767 0017 fxd metflm 17k ohms 5 3w 0727 0109 fxd 1470 ohms 1 1 2w 0727 0109 fxd depc 1470 ohms 1 1 2w 0686 3625 2 R fxd comp 3600 o
30. C467 C480 C481 CRI CR2 CR3 CR110 CR111 CR112 CR113 CR200 CR201 CR202 CR203 CR420 CR421 CR422 CR423 CR424 CR440 CR441 CR442 CR443 CR444 CR460 CR461 CR462 CR463 CR480 CR481 CR482 DS101 DS102 DS400 DS401 F401 J1 J2 J3 J4 J100 01879 5 0150 0052 0180 0012 0150 0012 0180 0398 0150 0012 0150 0012 0150 0084 0180 0398 0150 0052 0180 0059 0180 0132 0150 0084 0150 0012 0180 0056 1901 0040 1901 0040 1910 0016 1901 0044 1901 0040 1901 0040 1901 0029 1902 0034 1902 3385 1901 0028 1902 3354 1901 0028 1902 0034 1901 0045 1902 0113 2140 0018 1450 0048 2110 0002 1510 0010 1510 0010 5060 0627 p fxd cer 0 05 uf 20 400vdcw fxd elect 2x20 uf 450vdew C fxd 0 01 uf 20 1000vdew Not assigned C fxd elect 150 pf 10 50 200vdcw fxd cer 0 01 uf 20 1000vdcw C fxd 0 01 uf 20 1000vdew C fxd cer 0 1 uf 20 80 50vdew Not assigned fxd elect 150 uf 10 50 200vdcw fxd cer 0 05 20 400vdcw fxd elect 10 10 100 25vdew fxd elect 60 uf 10 100 200vdew fxd cer 0 1 uf 20 80 50vdew fxd cer 0 01 uf 20 1000vdcw Not assigned C fxd elect 1000 uf 50vdcw CR si CR si Not assigned CR ge CR si Not assigned CR si CR si Not assigned CR si CR avalanche 5 76 v CR avalanche 69 8 v Not assigned CR si Not assigned CR avalancha 54 9 v Not assigned
31. LEVEL control determines the point on the triggering source wave form at which the sweep starts This trigger level is variable whether using external internal or line for the trigger source By proper setting of LEVEL the sweep may be started at any point on a vertical deflection waveform deflection gt 0 5 cm when trig gering internally or at a point between 10v to 10v on an external trigger signal The on the LEVEL control refers to the direction the triggering point moves on a waveform regardless of theSLOPE setting for example turning LEVEL ccw moves triggering level toward a more negative point on the triggering waveform When LEVEL is set fully counterclockwise to AUTO detented position the sweep will free run at a low repetition rate providing a baseline in the absence of a triggering signal and then provide automatic triggering of the sweep when a signal within specifications is applied In AUTO an external trigger is always AC coupled WhenLEVEL is set fully clockwiseto FREERUN detented position 3 1 Section III Figure 3 2 3 2 AMPLIFIER AC DC Selects internal direct or capacitive coupling on 7 highest sensitivity ranges see Paragraph 3 31 Horizontal input terminal Positive going signals applied to this terminal causethetrace to deflect to the right Horizontal input terminal Negative going signals applied to this terminal cause the trace to deflect to the right INPUT AC DC Select
32. Power Supply Schematic 5 25 Waveforms 5 13 5 4 Horizontal Attenuator Compensation 6 1 Modular Cabinet Replaceable Parts 6 0 Waveforms 5 13 5 5 Vertical Attenuator A2 Component II 1 Option 05 Schematic Diagram 1 LLLI 5 16 II 2 Option 06 Schematic Diagram 1 LIST OF TABLES Number Title Page 1 1 Specifications 1 0 1 2 Equipment and Accessories Available 1 2 1 3 Description of Options s s sos sss 1 2 3 1 Common Mode Rejection 3 4 3 2 Characteristics and Applications for Amplifier and Input Coupling Combinations 3 4 5 1 Required Test Equipment gt s s s s s 5 0 5 2 Vertical Horizontal Sensitivity Calibration 5 1 5 3 Sweep Calibration 5 3 5 4 Sweep Magnifier Calibration 5 5 5 5 Ripple Measurements 5 5 5 6 Low Voltage Supply Troubleshooting 5 8 5 7 Sweep Generator Troubleshooting 5 10 5 8 Low Voltage Power Supply Adjustment 5 11 5 9 Input Capacity Adjustment 5 14 5 10 Sweep Time Calibration 5 15 6 1 List of Reference Designators and Abbreviations 6 1 6 2 Replaceable Parts 6 2 6 3 Code List of Manufacturers 6 16 1 Replaceable Parts for Options 11 2 01870 3 iii Section I Table 1 1 Model 130C Table 1 1 Specifi
33. R fxd depc 7 68 ohms 1 1 2w hp Part No 0727 0421 M r 19701 Mfr Part No DC 1 2 AR5 Note Some instruments may have a shunt resistor to obtain correct value for R30 and R260 For re placement order by new stock number above CHANGE 12 Table 6 2 Change assembly part numbers as follows A201 to 130C 65B A202 to 130C 19B A205 to 130C 65F A301 to 130C 65E A401 to 130C 65D A1 to 130C 65A A2 to 130C 19A 5 to 130C 65F A101 to 130C 65C A102 to 130 190 175 to 130C 19C Note This change involved a mechanical change only resulting in new PC board material and con sequently different size edge on connectors When old part numbers as listed above are ordered new part numbers as listed in Section VI wil be I 2 Model 130C Shipped The edge on connectors may be bent to fit when matching old and new assemblies CHANGE 13 Figure 5 20 Change value of R482 to 12K ohms Table 6 2 Change CR482 to hp Part No 1902 0031 Change R482 to R fxd comp 12K ohms 10 1w hp Part No 0690 1231 Mfr 01121 Mfr Part No GB 1231 CHANGE 14 Figure 5 11 Delete C122 10001f Figure 5 13 Change value of R184 to 4 5 me gohms Change value of R185 to 1 8 megohms Figure 5 18 Change R329A B each to 10K ohms Delete R330 100 ohms Table 6 2 Delete C122 hp Part No 0150 0069 Change L302 hp Part No to 5060 0409 Change R184 to R fxd 4 5 megohms 1 1w hp Part No 0730 0157 Mtr 19701 Mfr
34. SUPPLY F O INTENSITY 9 1306 6 Figure 4 1 Model 130C Overall Functional Block Diagram 4 0 01879 1 Model 130C Section IV Paragraphs 4 1 to 4 13 SECTION IV PRINCIPLES OF OPERATION 4 1 INTRODUCTION 4 2 As shown in the block diagram Figure 4 1 the Model 130C consists of five major sections low voltage power supply high voltage power supply vertical amplifier horizontal amplifier and sweep generator 4 3 The paragraphs of this section discuss the circuit details of the major sections of the Model 130C Since the vertical and horizontal amplifiers are nearly identical the horizontal amplifier is described where it differs from the vertical amplifier 4 4 LOW VOLTAGE POWER SUPPLY 4 5 The low voltage power supply provides operating voltages for the amplifiers and for the sweepgenerator circuits with outputs of 100V 12 5V 100V and 250V The regulated 12 5 volt supply provides fila ment voltage for the verticalandhorizontal input stages and a current source for the trace alignment coil 4 6 100 VOLT SUPPLY 4 7 The 100 volt supply provides regulated voltages for the amplifier and sweep circuits and also provides a reference voltage for the 100 volt and 250 volt supplies Refer to Figure 4 2 Differential Amplifier Q463 Q464 compares the reference voltage from Reference Tube V461 againsttheoutput voltage sample obtained by voltage divider R467 R469 The differ e
35. TRANSFORMER T401 TL un T 7227222 2 L V SUPPLY A401 1 mS R178 1 0 mS IR177 mS R176 181 SEC R175 BE gt 5 On INPU lt 24 lt 2 e Figure 5 1 Model 130C Top View Cover Removed 5 6 01879 2 Model 130C Section V Figure 5 2 L V SUPPLY SERIES REGULATORS H V TRANSFORMER 1 2 1 5642 U v305 V304 25 VAR CO P UP S a SWEEP GENERATOR R402 CALIBRATOR HORIZONTAL AMPLIFIER A201 NEUTRALIZING UTPUT STAGE URRENT R276 s ev GAIN R263 INPUT CAPACITY CAPACITY c222 7 CAPACITY C21 COLLECTOR VOLTAGE R228 Figure 5 2 Model 130C Bottom View Cover Removed 01879 2 5 7 Section V Model 130C Table 5 6 Table 5 6 Low Voltage Supply Troubleshooting 100V High Output Disconnect base lead of Q461 WHT Output remains high Q461 shorted GRN VIO lead connecting to edge of board near top of instrument Output drops Q461 good Reconnect base lead Short emitter Output remains high Q462 shorted to collector of Q464 Output drops Q464 open or Q403 Same as output 9463 shorted Less than output Q464 open Low Output Measure voltage across CR462 CR462 shorted Measure voltage across R465 Short collector to emitter of Q462 Output remains low Q461 open Sore Short collector to emitter of Q463 Output remains low Q462 open Output rises Q463 open
36. a capacitance meter or bridge and the other method requires an alignment attenuator previously set by L C Meter or capacitance bridge for a specific value See item 9 in Table 5 1 Paragraphs 5 79 and 5 80 provide the procedures for these two methods 5 79 PROCEDURE USING CAPACITANCE METER a Set amplifier SENSITIVITY to 0 2 VOLTS CM b Disconnect the ground link from the center terminal of the Model 130C amplifier input c Connect the L C Meter between the left in put and right ground terminals d Adjust C21 C221 Input Capacity for a reading of 45 pf on the L C Meter Note For Model 130C instruments with Option 06 see Paragraph 1 9 change all references this procedure from 45 pf to 85 This is necessary because of input capaci tance added by the cabling to the rear panel connectors e Connect the L C Meter between the center input and right ground terminals f Adjust C22 C222 Input Capacity for a reading of 45 pf on the L C Meter g Disconnect the L C Meter h Connect the signal lead of the Square Wave Generator 600 2 output to the left terminal input of the amplifier input Connect a short wire from 01879 2 Model 130C OPTIMUM ADJUSTMENT ROUNDING UNDERCOMPENSATED Section V Paragraphs 5 79 Con t OVERSHOOT OVERCOMPENSATED Figure 5 3 Horizontal Neutralization Adjustment Waveforms OPTIMUM ADJUSTMENT ROUNDING UNDERCOMPE NSAT
37. amplifier Then as amplifier gain is increased by the interstage attenuator section of S202 the sweep is expanded and the effective positioning range is increased at the same time 4 5 Section V Model 130C Table 1 Table 5 1 Required Test Equipment Instrument Type Required Characteristics Recommended Instruments Measurement Adjustment Voltmeter Calibrator Output 0 002 to 300V p p Vert Sensitivity Ext Calibrator Vert Calibrator Horiz Sensitivity Horiz Calibrator Vert Gain Horiz Gain Model 738AR CAQI 738 A Vert Bandwidth Vert Common Mode Rej Horiz Bandwidth Horiz Common Mode Rej Phase Shift Triggering Trigger Point Intensity Mod Horiz Neut Input Cap and Freq Comp Sweep Length Frequency 10 cps to 500 kc 00 21 2152 e 3 0 to 110 db attenuation Vert Bandwidth 2 Oscillator Horiz Bandwidth 5 14 3 Attenuator Phase Shift 5 16 AC Voltmeter Range 3 mv s Vert Bandwidth 5 10 4000 Horiz Bandwidth 5 14 Time Mark Marker Internal Sweep Calib 5 19 Tektronix Type _ Generator 1 usec to 5 sec in Sweep Magnifier 5 21 AN USM 108 1 2 5 10 Sweep Time Calib 5 86 Sequence Output greater DC Voltmeter HV DC Voltmeter 5 10 Model 3500
38. an adjustment but do not make arbitrary adjustment settings always follow the procedures given in Paragraph 5 58 To locate assemblies and other circuit components refer to Figure 5 1 and 5 2 also refer to Paragraph 5 87 Schematic diagrams for all circuits are shown in Figures 5 7 5 11 5 13 5 16 5 18 and 5 20 5 26 ISOLATING TROUBLES TO A MAJOR SECTION 5 27 The following checks should be performed whenever a malfunction is suspected 5 28 POWER SUPPLIES a Set Vertical and Horizontal SENSITIVITY e o t o e 20 VOLTS CM Vertical and Horizontal VERNIER CAL b BEAM FINDER defocused spot should appear on the screen if the power supplies are operating properly 01879 1 Section V Paragraph 5 23 to 5 36 5 29 AMPLIFIERS a Set Vertical and Horizontal SENSITIVITY s s s 5 c o 5 o CAL Vertical and Horizontal AMPLIFIER AC b A trace tilted at 45 and having 5 cm vertical and horizontal deflection should appear if the ampli fiers are operating properly 5 30 SWEEP GENERATOR a Set Horizontal SENSITIVITY INTERNAL SWEEP X1 LEVEL AUTO TRIGGER SOURCE SLOPE INT SWEEP TIME 1 MILLISECONDS CM VERNIER CAL Vertical SENSITIVITY CAL b A synchronized square wave 5 cm in amplitude should be observed if the sweep generator is operating properly Note If the horizontal
39. and intensifies the trace or spot and reduces the sensitivity of both horizontal and vertical amplifiers so the trace appears on screen regardless of INTENSITY DC BALANCE and POSITION settings The beam finder reduces amplifier gain enough to overcome the effective posi tioning range of the DC BALANCE controls which amounts to as much as 40 screen diameters i e 400 cm at the highest amplifier sensitivity as com pared to only 2 screen diameters 20 cm range for POSITION control Because of the desensitization required to overcome DC BALANCE range the POSI TION controls are essentially inoperative when the BEAM FINDER is depressed Therefore always set POSITION to approximately 120 clock before using the beam finder To get maximum usefulness from the BEAM FINDER the selected amplifier sensitivity and coupling should also be considered At higher amplifier sensitivities i e toward 0 2 MV CM if AMPLIFIER is set to AC a DC unbalance in the amplifier cannot cause an off screen deflection In stead the most probable cause is amplifier overload by the input signal or intensity may be set too low At higher sensitivities with amplifier DC coupling and trace not on screen switch AMPLIFIER to AC and if trace now appears on screen then a DC unbalance exists to make DC BALANCE setting see Figure 3 3 At lower amplifier sensitivities DC unbalance is eliminated as a cause for off screen trace Another cause of
40. at V103B cathode to cross the lower hysteresis limit rather than a trigger crossing as explained in Paragraph 4 24 of the gate generator which initiates a new sweep cycle The stability adjustment is switched out of the circuit by S102E which applies 100 volts directly to R152 in the 4 3 Section IV Paragraphs 4 28 to 4 38 cathode circuit of V103B This shifts the DC level at which V103B cathode quits following the grid hold off voltage to a level below the lower hysteresis limit Now as the hold off decay voltage crosses the hysteresis limit it starts the sweep again 4 28 SINGLE SWEEP CIRCUIT 4 29 In single sweep operation the sweepistriggered on the first trigger received after manual arming and further triggers are ineffective until the circuit is re armed This sequence is accomplished in the Model 130C by preventing the retrace fromoccurring In NORMAL operation switch S104A returns Q101 emitter to ground through R150 and the transistor is inoperative In SINGLE operation however S104A connects R150 to 100 volts This still biases Q101 off but allows conduction when the base voltage be comes more positive during the sweep Inthe SINGLE position S104B connects 4100v to neon indicator DS101 Because the sweep level i8 at zero volts be fore the sweep waveform begins there is sufficient voltage across the neon to cause it to light ARMED Assuming that 5104 has just been switched to SINGLE position the first trigge
41. ce Level Switch A102 Component Location 5 18 3 4 Internal Sweep with Internal Trigger 3 7 5 10 Generator AIOL Ca ent 3 5 Internal Sweep with External Trigger 3 8 ep 3 6 Single Sweep Operation 3 9 Loemion 5 55 5 18 3 7 Differential Operation 5 3 10 5 11 Sweep Generator Schematic 5 19 5 12 Sweep Time Switch A175 3 8 Operation 3 11 2 Component Location 5 20 4 1 Model 130C Overall Functional 5 13 Sweep Time Schematic 5 21 Block Diagram 4 0 5 14 Horizontal Attenuator A202 4 2 LV Power Supply Block Diagram 4 1 Component Location 5 22 4 3 Power Supply Block Diagram gt 4 2 5 15 Horizontal Amplifier A201 4 4 Sweep Generator Functional Block Component Location 5 22 Diagram 4 2 5 16 Horizontal Attenuator and 4 5 Vertical Amplifier Functional Block Amplifier Schematic 5 23 Diagram 4 4 5 17 High Voltage Power Supply A301 Component Location 5 24 5 1 Model 130C Top View Cover Removed 5 6 5 18 High Voltage Power Supply Schematic 5 24 5 2 Model 130C Bottom View Cover 5 19 Low Voltage Power Supply A401 Removed 5 7 Component Location 5 25 5 3 Horizontal Neutralization Adjustment 5 20 Low Voltage
42. isa graph of the vertical signal vs the horizontal signal and isuseful for displaying plots of voltagevs current hysteresis loops pressure vs strain using strain gages etc Another important application for X Y operation is to make phase shift measurements The vertical and horizontal amplifiers have identical characteristics and less than 1 relative phase shift from DC to 100 kc when VERNIERs are set to CAL and amplifier SENSITIVITY settings are equal Application Note 29 describes a convenient method for measuring phase shift When measuring phase Bhift at very low frequencies use both AMPLIFIER DC and INPUT DC to eliminate phase differences contributed by the AC coupling capacitors 3 30 OPERATING CONSIDERATIONS 3 31 USE OF AMPLIFIER AND INPUT AC DC 3 32 Different combinations of AMPLIFIER and IN PUT coupling will provide various advantages in the characteristics of operation depending on the wave form to be displayed Table 3 2 summarizes the typical low frequency 3 db cutoff point with different SENSITIVITY and coupling settings typical applica tions are also given The high frequency 3 db cutoff point is 500 kc in all cases For SENSITIVITY settings from 50 mV CM through 20 VOLTS CM AMPLIFIER Table 3 2 Characteristics and Applications for AMPLIFIER and INPUT Coupling Combinations AMPLIFIER 2 fas a 5 10 20 50 mV to 20 VOLTS CM AC 10 2 5 25 Cps 25 16 For g
43. no display is non triggering sweep and this can be checked by noting if trace appears when the automatic triggering mode is used see Table 1 1 for Specifications 3 16 OPERATIONAL CHECK 3 17 This procedure may befollowed to check opera tion of most controls and circuits of the Model 130C a Turn INTENSITY to about 12 o clock position turns AC power on Allow several minutes warmup 01879 1 Section III Paragraphs 3 12 to 3 25 b Set all VERNIERs to CAL c Set horizontal and vertical AMPLIFIER and INPUT to AC d Set vertical SENSITIVITY to CAL e Set the horizontal SENSITIVITY to INTERNAL SWEEP X1 and SWEEP TIME to 1 MILLISECONDS CM f Set TRIGGER SOURCE SLOPE toINT LEVEL to AUTO and NORMAL SINGLE to NORMAL g Adjust both POSITION controls to center display Adjust FOCUS for sharp clear trace h The height of the square wave displayed should be 5 cm 3 18 OPERATING PROCEDURES 3 19 Paragraphs 3 20 through 3 29 and the figures referenced describe procedures for v rious opera ting modes and applications of the 130 Before operating the Oscilloscope and following these pro cedures it is recommended that Paragraphs 3 3 through 3 15 be read to become completely familiar with front panel controls Also Paragraphs 3 31and 3 33 describe considerations which are important in most measurements with the Model 130C 3 20 INTERNALLY TRIGGERED SWEEP OPERATION 3 21 In this
44. of 10 1 on the next three ranges 0 5 VOLTS CM to 2 VOLTS CM is provided by R15 R17 and R16 R18 on the two inputs Capacitors C17 and C18 maintain this ratio at high frequencies and C19 and C20 are adjusted to keep input capacitance at 45 pf on these three ranges In the CAL position of the SENSITIVITY switch input terminals are opened and a 5 millivolt 3 350 cps square wave is applied to the input of tube V1A to check amplifier calibration Sensitivity of the ampli fier in the CAL position is 1 mv cm In BAL posi tion the input terminals are opened and the grid circuits of V1 are grounded to allow accurate balanc ing of DC voltages in the amplifier 4 34 DIFFERENTIAL FEEDBACK AMPLIFIER 4 35 From the input attenuator a signal is fed to the input of the differential feedback amplifier i e grids of V1 Resistors R41 and R42 provide input overload protection The gain of this amplifier consisting of V1 and Q1 through Q4 is effectively controlled by the interstage attenuator which inserts feedback resistance determined by S1 setting be tween the emitters of Q3 and Q4 Gain is propor tional to the ratio of the third stage Q3 and Q4 col lector load to feedback resistance The interstage attenuator and the input attenuator give the overall control of deflection sensitivity The mainDC current path for both V1 and Vernier adjustment is through the feedback paths R49 R50 or R48 to the 100 volt supply at the collec
45. pictures atso corresponding Schematic diagram Refer to the List of Illustrations at the front of this manual for page references to these component location figures Note Component location is identical for assemblies with different hp 6 Factory selected part may have been omitted average value shown instrument chassis ground Set Oscillator frequency to 500 kc and adjust amplitude for a 6 cm display on CRT d Observe end of sweep and adjust LEVEL control for shortest sweep of 10 75 Hoviz SENSITIVITY INTERNAL SWEEPX1 4 1906 194 and t30C 19E terminals numbers ag listed below by refer Set Model 130 as ence designator SWEEP TIME Ort 101 130C 85C 130 657 A102 130 190 and 130 19 A175 130C 19C 130C 19G A201 130C 65B and 130C 65H A202 130 19 and 130C 19F A205 130C 65F and 130C 65M 01879 4 Schematic Diagram Notes Fold out 5 15 Section V Figures 5 5 and 5 6 Mode 130 San ON OPPOSITE SIDE OF BOARD Figure 5 5 Vertical Attenuator A2 Component Location 5 16 Figure 5 6 Vertical Amplifier Al Component Location 01879 3
46. red input terminal should always be connected to Oscil loscope ground At each SENSITIVITY setting adjust signal amplitude for about 8 cm deflection and make the adjustment shown in the table Table 5 9 Input Capacity Adjustment Amplifier Input SENSITIVITY Connections Setting Adjust for 45 pf or best Square Wave left and right 2 VOLTS CM C19 C213 terminals left and right terminals center and right 5 VOLTS CM terminals centerandright 2 VOLTS CM terminals C13 c211 5 VOLTS CM C14 C212 20 214 Model 130C 5 80 ALTERNATE METHOD USING ALIGNMENT ATTENUATOR Note If the Alignment Attenuator has been pre viously adjusted to match a 45 pf input capacity steps b and h may be omitted a Disconnect ground link from amplifier input center terminal b Set SENSITIVITY to 0 2 VOLTS CM and measure input capacity between left and right terminals with an L C Meter or capacitance bridge Adjust C21 C221 for a reading of 45 pf Connect the 6000 output of the Square Wave Generator through the Alignment Attenuator to the left input and right ground terminals ofthe input Ground center terminal d For vertical circuit adjustment proceed to Step e 1 For horizontal circuit only connect the Oscillator output to the Model 130C vertical input terminals and to the external sync input of the Square Wave Generator proceed to step e 2 e Make Model 130C setting as follows 1 For v
47. subdivi sions on major horizontal and vertical axis BEAM FINDER Depressing Beam Finder control brings trace on CRT screen regardless of setting of balance position or intensity controls INTENSITY MODULATION Terminals on rear 20 volt pulse blanks CRT at normal intensity POWER 115 or 230 volts 10 50 to 1000 cps Approximately 90 watts DIMENSIONS INCHES AND CENTIMETERS 6 RACK HEIGHT 3 FOR CABINE T HEIGHT INCLUDING FEET ADD Ta DEM RACK HEIGHT WEIGHT Net 31 lbs 14kg Shipping 38 lbs 17 1kg 01879 3 Model 130C Section I Paragraphs 1 1 to 1 4 SECTION I GENERAL INFORMATION 1 1 DESCRIPTION 1 2 The Hewlett Packard Company Model 130C Oscilloscope shown in Figure 1 1 is a versatile instrument for laboratory production line or indus trial process measurements Horizontal and vertical display sensitivity is 200 microvolts per centimeter and the measurement bandwidth is 500 kc A sweep magnifier of up to X50 allows expansion of a trace to the equivalent of 500 centimeters for viewing waveform details Single sweep operation is also provided to allow observation of single shot phenomenaor random occurrence events Trigger adjustments are minimized by using either a front paneltrigger level control with preset stability or automatic triggering which provides a base line even with no input signal Also for fast expanded sweep t
48. 1 0687 2211 0687 3311 20002 Not assigned 0687 2701 fxd comp 27 ohms 10 1 2w EB 2701 0767 0002 fxd metflm 560 ohms 5 3w 0687 4731 fxd comp 47k ohms 10 1 2w EB 4731 0687 1511 fxd comp 150 ohms 10 1 2w EB 1511 0687 4731 fxd comp 47k ohms 10 1 2w EB 4731 0758 0020 fxd metflm 22k ohms 5 1 2w NSR p o A402 0758 0020 R fxd metflm 22k ohms 5 1 2w 0687 2211 R fxd comp 220 ohms 10 1 2w EB 2211 0687 3311 R fxd comp 330 ohms 10 1 2w EB 3311 0687 1021 R fxd comp 1000 ohms 10 1 2w EB 1021 Not assigned fxd comp 27 ohms 10 1 2w EB 2701 fxd metflm 910 ohms 5 2 hp fxd comp 27k ohms 10 1 2w EB 2731 fxd depc 5180 ohms 1 1 2w p fxd comp 39k ohms 10 1 2w EB 3931 0687 2701 0764 0023 0687 2731 0727 0137 0687 3931 fxd comp 8200 ohms 10 1 2w EB 8221 fxd metflm 22k ohms 5 1 2w NSR p o A402 0727 0115 R fxd 2000 ohms 1 1 2w hp 0687 3311 R fxd comp 330 ohms 10 1 2w EB 3311 0687 8221 0758 0020 ID Nuuuu Not assigned 0699 0006 fxd comp 4 7 ohms 10 1w GB 47G1 0761 0006 R fxd metflm 10k ohms 5 1w 6 12 01879 4 Model 130C Section VI Table 6 2 Ref ona S1 Table 6 2 Replaceable Parts Cont d Description See Table 6 1 Mfr Part No NSR p o A2 S2 NSR p o A3 S3 NSR p o A3 3101 0014 8 pushbutton spdt 48 1106 Not assigned NSR p o A102 NSR p o A102 NSR p o A103 NSR p o A103 Not assigned N
49. 1 Refer to Table 5 1 for information on instru ments required for the adjustment procedures Sub Stitute instruments should have the characteristics described in the table 9 62 PRELIMINARY SETTINGS 5 63 The following settings must be made prior to following any adjustment paragraph procedure Ifa setting is different from these preliminary settings the procedure for the adjustment will specify so LEVEL 1 110 0 0 146 AUTO TRIGGER SOURCE SLOPE INT ALL VERNIERS i a s e aa as n n n CAL ALL AC DC 000000000 Grounding links rennen connected NORMAL SINGLE gt NORMAL 5 64 GROUP ADJUSTMENTS 5 65 LOW VOLTAGE POWER SUPPLY 5 66 Use a DC Voltmeter to measure theoutput with respect to chassis ground of the low voltage power supplies and make adjustment or check tolerance as shown in Table 5 8 Thevoltage measurement can be made at any wire coded with the colors specified in Table 5 8 5 67 HIGH VOLTAGE POWER SUPPLY a Connect the Model 11044 100 1 Voltage Divider to the DC probe of the Model 410B Voltmeter b Set Voltmeter to 3 volt DC range and polarity to c Set the Voltmeter Calibrator for 300 volts DC output and connect divider tip to the output d Set the gain adjustment of the Model 410B located at the rear of the instrument for a reading of exactly 3 volts e Set the Voltmeter to the 30 volt range
50. 10 1w Type BBF 0687 2751 fxd comp 2 7 megohms 10 1 2w EB 2751 0687 2231 fxd comp 22k ohms 10 1 2w EB 2231 0687 2231 fxd comp 22k ohms 10 1 2w EB 2231 1 DU MU CU GU GU CU d Gg DU GU 2292020 uw 0687 2751 fxd comp 2 7 megohms 10 1 2w EB 2751 fxd comp 270 ohms 10 1 2w EB 2711 var comp 2 x 2000 ohms 30 fxd comp 100 ohms 10 1 2w EB 1011 0687 2711 2100 0445 0687 1011 Not assigned 0687 5631 R fxd comp 56k ohms 10 1 2w EB 5631 01879 3 6 11 Section VI Model 130C Table 6 2 Table 6 2 Replaceable Parts Cont d Ref Description sene INDY NSR p o A402 0727 0284 fxd 1 75 megohms 1 1 2w hp 0666 2055 R fxd comp 2 megohms 5 1 2w EB 2055 0698 5150 R fxd metflm 9900 ohms 1 1 4w 0698 5150 R fxd metflm 9900 ohms 1 1 4w 0757 0178 R fxd metflm 100 ohms 1 1 4w 0757 0178 R fxd metflm 100 ohms 1 1 4w Not assigned 0687 3301 fxd comp 33 ohms 10 1 2w EB 3301 2 fxd comp 2200 ohms 10 2w HB 2221 fxd comp 22k ohms 10 2w HB 2231 fxd metflm 10k ohms 5 1w hp fxd comp 1000 ohms 10 1 2w EB 1021 fxd comp 47k ohms 10 1 2w EB 4731 0693 2221 0693 2231 0761 0006 0687 1021 0687 4731 fxd 51 6k ohms 1 iw fxd 68 38k ohms 1 1w fxd comp 100 ohms 10 1 2w EB 1011 fxd comp 220 ohms 10 1 2w EB 2211 fxd comp 330 ohms 10 1 2w EB 3311 0730 0052 0730 0056 0687 101
51. 130 0006 0130 0006 0150 0012 0150 0012 0150 0035 0150 0035 0150 0069 0150 0069 0160 2056 0160 0157 0160 0163 0180 0314 0140 0041 0150 0012 0140 0039 0150 0012 0150 0023 0150 0012 0160 0013 0150 0052 0160 0151 0150 0012 0160 0013 0150 0050 0160 0151 0160 0151 0160 0018 0160 0151 0150 0069 0160 0151 0160 0151 0160 0151 0160 0151 0150 0050 0160 0007 0180 0147 0150 0084 6 4 EE 1 1 1 2 8 1 1 1 Table 6 2 Replaceable Parts Cont d Description See Table 6 1 var cer 1 5 7 pf 500vdcw var cer 1 5 7 pf 500vdew fxd mica 200 pf 5 500vdcw fxd mica 200 pf 5 500vdcw var cer 5 20 pf 500vdcw var cer 5 20 pf 500vdcw fxd cer 0 01 uf 20 1000vdcw fxd cer 0 01 uf 20 1000vdew C C C C C C C C Not assigned fxd cer 20 pf 10 600vdcw fxd 20 pf 10 600vdcw fxd cer 1000 pf 20 100 500vdcw fxd 1000 pf 20 100 500vdew fxd my 0 22 uf 20 200vdcw fxd my 4700 pf 10 200vdew fxd my 0 033 10 200vdcw fxd elect 2000 uf 10vdew fxd mica 100 5 500vdcw NSR p o A206 NSR p o A206 C fxd 0 01 uf 20 1000vdcw C fxd mica 47 pf 5 500vdcw Not assigned C fxd cer 0 01 uf 20 1000vdcw fxd cer 200 pf 20 1000vdew fxd cer 0 01 uf 20 1000vdew fxd my 0 1 uf 10 400vdcw fxd
52. 14 4 32 Input Attenuator 4 4 5 83 3 5 15 4 34 Differential Feedback Amplifier 4 5 5 84 Sweep Stability 5 15 4 36 Output Amplifier 4 5 5 85 Length lt gt a ve 5 15 4 39 Horizontal Amplifier 4 5 5 86 Sweep Time Calibration 5 15 V MAINTENANCE 5 1 5 87 Component Location 5 15 5 1 Introduction 3 tw F 5 3 Performance Check 5 1 vi PA gg spa 2 s364 mw 7 i 5 4 Generale lt eao lt 5 1 rds in na DRM 6 1 5 6 Preliminary Procedure 5 1 din ring armon di 5 7 Vertical Sensitivity 5 1 APPENDIX I MANUAL CHANGES I 1 5 8 External Calibrator 5 1 APPENDIX II OPTIONS tr II 1 01879 3 ii Model 130C List of Illustrations and Tables LIST OF ILLUSTRATIONS Number Title Page Number Title Page 1 1 130C Oscilloscope 1 1 5 6 Vertical Amplifier Al Component 3 1 Controle and Terminals Vertical Aneit ma aaie T Display and Power 3 0 RES d sc a cg ub edd 5 17 3 2 Controls and Terminals Horizontal 5 8 Sweep Generator Circuit Waveforms 5 18 Sweep and Triggering 3 2 6 01 Trigger Source Level Swi 102 3 3 Balance Procedure 3 6 ger
53. 21 0727 0237 fxd comp 100 ohms 10 1 2w EB 1011 fxd comp 2 7 megohms 10 1 2w EB 2751 fxd comp 680 ohms 10 1 2w EB 6811 fxd comp 2700 ohms 10 1 2w EB 2721 fxd 376k ohms 1 1 2w 0727 0244 0690 2231 0687 4721 0687 1031 0727 0183 fxd 500k ohms 1 1 2w fxd comp 22k ohms 10 1w GB 2231 fxd comp 4700 ohms 10 1 2w EB 4721 fxd comp 10k ohms 10 1 2w EB 1031 fxd 26 7k ohms 1 1 2w mmu mum mum 6 8 01879 3 Model 130C Ref DESDE 0687 1011 0690 4731 0727 0249 0727 0229 0687 1011 0687 1521 0687 1531 0690 1241 0687 5631 0687 8241 0687 1011 0686 2445 0686 2245 0690 2731 2100 0383 0687 8221 0687 4751 0686 7525 0689 1835 2100 0381 0686 2735 0686 4735 0687 3301 0687 2711 0687 2711 0686 4715 0687 1011 0687 1841 2100 0107 0687 2231 0730 0138 0733 0009 0730 0138 0730 0162 0727 0391 0727 0259 0687 2211 0687 2211 0727 0269 0727 0269 0727 0259 0727 0259 0727 0158 01879 3 Table 6 2 Replaceable Parts Cont d Section VI Table 6 2 Description See Table 6 1 Part No fxd comp 100 ohms 10 1 2w fxd comp 47k ohms 10 1w fxd 667k ohms 1 1 2w fxd 265k ohms 1 1 2w fxd comp 100 ohms 10 1 2w fxd comp 1500 ohms 10 1 2w fxd comp 15k ohms 10 1 2w fxd comp 120k ohms 10 1w fxd comp 56k ohms 10 1 2w fxd comp 820k ohms 10 1 2w fxd comp 100 ohms 10 1 2w
54. 4 Knob red level 0905 0016 Gasket felt crt 1200 0043 Insulator transistor socket 294457 1220 0009 Shield tube V101 151 11 23 012 1251 0207 Connector edge on p o main cable harness 42587 5 4320 0007 Extrusion rubber crt clamp 5000 0408 Bracket coil trace align 5040 0401 Support capacitor hv circuit board 5040 0417 Holder tube socket 5040 0421 Insulator focus pot 5040 0466 Retainer crt shield 01879 4 6 15 SectionVI Model 130C Table 6 3 Table 6 3 Code List of Manufacturers The following code numbers are from the Federal Supply Code for Manufacturers Cataloging Handbooks H4 1 Name to Code and H4 2 Code to Name and their latest supplements The date of revision and the date of the Supplements used appear at the bottom of each page Alphabetical codes have been arbitrarily assigned to suppliers not appearing in the H4 Handbooks Code Code Code No Manufacturer Address No Manufacturer Address No Manufacturer Address 00000 U S A Common Any supplier of 05729 Metro Tel Corp Westbury N Y 12881 Metex Electronics Corp Clark N J 00136 McCoy Electronics Mount Holly Springs Pa 05783 Stewart Engineering Co Santa Ctuz Calif 12930 Delta Semiconductor Inc Newport Beech Celif 00213 Sage Electronics Corp Rochester N Y 05820 Wakefield Engineering Inc Wakefield Mass 12954 Dickson Electronics Corp Scottsdele Arizooa 00287 Inc Denielson Conn 06004 Bassick Co The Bridgeport Conn 13103 Thermoll
55. 4970 85454 Monufacturer Address Mepco Division of Sessions Clock Co Morristown N J Schnitzer Alloy Products Co Elizabeth N J Times Telephoto Equipment New York N Y Electronic Industries Associntion Any brand Tube meeting EIA Standards Wnshington DC Unimnx Switch Div Mnxon Electronics Corp Wallingford Conn United Transformer Corp New York N Y Oxford Electric Corp Chicago Ill Bourns Inc Riverside Calif Acro Div of Robertshaw Controls Co Columbus Ohio Definnce Ohio Monrovin Calif New York N Y Boston Mnss Orange Conn All Star Products Inc Avery Adhesive Label Corp Hammnrlund Co Inc Stevens Arnold inc Internntional Instruments Inc Grnyhill Co LaGrange Il Trind Transformer Corp Venice Calif Winchester Elec Div Litton Ind Inc Oakville Conn Military Specification Internntional Rectifier Corp Segundo Calif Airpnx Electronics Inc Cnmbridge Mass Barry Controls Div Barry Wright Corp Watertown 155 Cnrter Precision Electric Co Skokie Ill Sperti Fnrnday Inc Copper Hewitt Electric Div Hoboken N J Jeffers Electronics Division of Speer Carbon Co Du Bois Pn Fairchild Camera amp Inst Corp Defense Prod Division Maguire Industries Inc Sylvnnia Electric Prod Inc Electronic Tube Division Emporium Pa Astron Corp East Newnrk Harrison J Switchcraft Inc Chicngo 111 Metnis amp Controls Inc Spencer Products Attleb
56. 5 25 Figure 5 20 Add diodes CR424 CR444 and CR464 respsectively between bases and emitters of 0421 0441 and 0461 In each case connect the anodes of the diodes to the bases of the transistors and the cathodes of the diodes to the emitters of the transistors Page 6 5 Table 6 2 Add CR424 CR444 and CR464 hp Part No 1901 0026 Change Reference Designators not c to CR425 CR440 CR445 CR460 and CR464 CR480 Page 6 6 Table 6 2 Change 0421 0441 and 0461 to Q si pnp 2N3792 no hp Part No 9 January 1970 A Latest additions to this change sheet Manual Changes Model 130C Page 3 Figure 1 P O 4 LVPS ASS Y 100V CALIBRATOR 500 MV CALIBRATOR 9403 CALIBRATOR 940 FROM PINS 7 wr 2 C402 CEL o 47UF TO_HORIZ TO VERT AMP ERU switch R407 R408 GRN 407 R408 GRA 27222 WHT WHT BLK BLK GRA Figure 2 2 P O LVPS ASS Y I00V I 8410 3665 CALIBRATOR 500 MV CALIBRATOR 9403 CALIBRATOR 9401 R409 FROM 20K 401 gt PIN 3 WHT cao YEL GRA O 47UF AMP ATTEN WHT M SRN 4074 Gna GRN R408 GRA Em WHT WHT BLK BLK PRINTED IN U S A HP Archive This vintage Hewlett Packard document was preserved and distributed by www hparchive com Please visit us on the web Prepared by on line curator Tony Gerbic F
57. 970 91260 91345 91418 91506 91637 91662 91737 91827 91929 91961 92180 92367 92196 92607 93332 93369 93410 93929 00015 Monufacturer Address Boyd San Francisco Calif R M Bracamonte amp Co San Francisco Calif Koiled Kords Inc Hamden Conn Seamless Rubber Co Chicago Ill Clifton Precision Products Co Inc Clifton Heights Pa Precision Rubber Products Corp Dayton Ohio Radio Corp of America Electronic Comp amp Devices Div Harrison N J Marco Industries Anaheim Calif Philco Corporation Lansdale Division Lansdale Pa Western Fibrous Glass Products Co San Francisco Calif Van Waters amp Rogers Inc San Francisco Calif Tower Mfg Corp Providence Cutler Hammer Inc Lincoln Gould National Batteries Inc t Paul Minn Federal Telephone amp Radio Corp Clifton N J General Mills Inc Buffelo N Y Graybar Electric Co Oakland Calif United Trensformer Co Chicago III US Rubber Co Consumer ind amp Plastics Prod Div Passaic N J Bearing Engineering Co San Francisco Calif Connor Spring Mfg Co San Francisco Calif Miller Dial amp Nameplate Co Monte Calif Rad o Meterials Co Chicago 111 Augat Inc Attleboro Mass Dale Electronics Inc Columbus Nebr Elco Corp Willow Grove Pa Gremar Mfg Co Inc Wakefield Mass K F Development Co Redwood City Calif Honeywell Inc Micro Switch Div Freeport Ill Nahm Br
58. Delete C243 Table 6 2 Delete C26 and C243 CHANGE 6 Figure 5 7 Delete CR1 and CR2 Figure 5 16 Delete CR201 and CR202 Table 6 2 Delete CR1 CR2 CR201 and CR202 7 Figure 5 7 Change value of C24 to 1000 uf Figure 5 16 Change value of C238 to 1000 1 Table 6 2 Change C24 and C238 to fxd elect 10001 100 10 10vdew hp Part No 0180 0146 M r 56289 Mfr Part No D35387 CHANGE 8 Table 1 1 Change specification for Bandwidth AC coupled input to read 10 eps to 500 ke Figure 5 7 Change C9 and C10 each to 022 uf Figure 5 16 Change C209 and C210 each to 022 uf Table 6 2 Change C9 C10 C209 C210 to C fxd my 002 uf 10 600vdew hp Part No 0160 0003 Mfr 56289 Mfr Part No 160P22396 I 1 Appendix I CHANGE 9 Figure 5 20 Change value of C444 and C465 to 01 uf Table 6 2 Change C444 and C465 to C fxd cer 01uf 20 1000vdew hp Part No 0150 0012 Mfr 56289 Mfr Part No H1038 CHANGE 10 Figure 5 7 Change value of R40 to 9 ohms Table 6 2 Change R40 to R fxd ww 9 ohms 10 5w hp Part No 0813 0016 Mfr 35434 Mfr Part No C 5 9 CHANGE 11 Figure 5 7 Change value of R30 to 9 76 ohms Figure 5 16 Change value of R260 to 7 50 ohms Table 6 2 Change Q3 Q4 Q203 Q204 to Transistor PNP Ge hp Part No 1950 0097 Mtr 73445 Mtr Part No 2N2084 Change R30toR fxd depc 9 93 ohms 195 1 2w hp Part No 0727 0430 Mfr hp Change R260 to
59. ED c OVERSHOOT OVERCOMPENSATED 130 A 10 Figure 5 4 Horizontal Attenuator Compensation Waveforms the right terminal to the ground side of the signal Source Also be sure the ground side of the signal input connector goes to the center terminal i For vertical capacitance and compensation ad justment proceed to step j 1 For horizontal ad justment only connect the Oscillator output to the Model 130C vertical inputterminals and to the external sync input of the Square Wave Generator proceed to step j 2 j Make settings as follows 1 For vertical adjustment only SWEEP TIME 20 uSECONDS CM Horizontal SENSITIVITY INTERNALSWEEP X1 Vertical SENSITIVITY 2VOLTS CM 01879 1 2 For horizontal adjustment only Vertical SENSITIVITY 5 VOLTS CM Horizontal SENSITIVITY 2 VOLTS CM k Set Square Wave Generator frequency to 10 kc For horizontal adjustment also set Oscillator fre quency to 5 kc m Obtain CRT display as follows 1 For vertical adjustment set Square Wave Generator output for about 8 cm deflection 2 For horizontal adjustment set both signal source amplitudes for about 8 cm deflection horizontally and vertically Adjust Oscillator frequency until two distinct square waves are displayed see Figure 5 4 5 13 Section V Paragraphs 5 80 to 5 82 n Adjust C17 C217 2V Atten Comp for best square wave Figure 5 4 illustrates the waveforms for
60. Ltd Toronto Ontario Canada 23783 British Redio Electronics Ltd Washington D C 04732 Filtron Co Inc Western Div 10214 General Transistor Western Corp 24455 G E Lamp Division 04773 Automatic Electric Co el i Eos Angeles Nela Cleveland DA 04796 Sequoia Wire Co i Redwood City Calif 10411 Ti Tal Inc _ Berkeley Calif 24655 General Radio Co West Concord Mass Geil mug el i 10646 Carborundum Co Niagara Falls N Y 26365 Gries Reproducer Corp New Rochelle N Y on wol aa ok Monte Calif 11236 CTS of Berne Inc Berne Ind 26462 Grobet File of America Inc 04870 P M Motor Company Westchester Ill 11237 Chicago Telephone of California Inc Carlstadt 08008 Ewentiath Gentury Plastics ne So Pasadena Calif 26992 Hamilton Watch Co Lancaster Pa 05277 Westinghouse Electric Com Los Angeles Calif 11242 Bay State Electronics Corp Waltham Mass 28480 Hewlett Packard Co Pelo Alto Calif 5 11317 Teledyne Inc Microwave Div Pelo Aito Calif 33173 G E Receiving Tube Dept Owensboro Ky Semi Conductor Dept Youngwood Pa 11534 Duncan Electronics Inc Costa Mesa Celif 35434 Lectrohm Inc Chicago 05347 Ultronix Inc San Mateo Calif 11711 General Instrument Corp Semiconductor k Coi d 05593 lllumitronic Engineering Sunnyvale Calif 36196 ele Lana Pladti Div Products Group Newark N J Hawkesbury Ontario Cenada c o Elec
61. OPERATING AND SERVICE MANUAL OSCILLOSCOPE 130C HEWLETT hp PACKARD 061 dH CERTIFICATION The Hewlett Packard Company certifies that this instrument was thoroughly tested and inspected and found to meet its published specifications when it was shipped from the factory The Hewlett Packard Company further certifies that its calibration measure ments are traceable to the U S National Bureau of Standards to the extent allowed by the Bureaw s calibration facility WARRANTY AND ASSISTANCE All Hewlett Packard products are warranted against defects in materials 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 damages Service contracts or customer assistance agreements are available for Hewlett Packard products that require maintenance and re pair on site For any assistance contact your nearest Hewlett Packard Sales and Service Office Addresses are provided at the back of this manual OPERATING AND SERVICE MANUAL MODEL 130C OSCILLOSCOPE SERIALS PREFIXED 644 For Other Serial Prefix Instruments See Section And Appendix 1 For Instruments With Options
62. RT cathode ray tube LK WASH lock washer 10 12 farads TI titanium Cw clockwise LOG logarithmic taper PH BRZ phosphor bronze TOL tolerance LPF low pass filter PHL Phillips TRIM trimmer DEPC deposited carbon PIV peak inverse voltage TWT traveling wave tube DR drive M milli 10 3 P O partof MEG meg 10 POLY polystyrene U micro 10 6 ELECT electrolytic METFLM metal film PORC porcelain ENCAP encapsulated MFR manufacturer POS position s VAR variable EXT external MINAT miniature POT potentiometer VDCW de working volts MOM momentary PP peak to peak F farads MTG mounting PT point w with FH flat head MY mylar RECT rectifier w watts FILH fillister head RF radio frequency WW wirewound FXD fixed N nano 10 9 RH round head W O without 01194 10 01879 4 Section VI Model 130C Table 6 2 Ref TONDE 130C 65G 130C 19E 3101 0040 2100 0432 130C 65M Table 6 2 Replaceable Parts Description See Table 6 1 M r Part No vertical amplifier circuit board includes A5 vertical attenuator switch s slide dua dpdt r fxd comp 2500 4000 250 ohms 30 1 4w amplifier input circuit board includes R43 R44 XV1 6603JM SPEC gt gt gt gt gt 0121 0111 A c var 0 7 3 0 pf dual Not assigned A sweep generator circuit board A trigger source switch 130C 65J 130C 19H
63. SR p o A175 Not assigned NSR p o A203 NSR p o A202 NSR p o A203 Not assigned NSR p o R308 8 slide 3101 0033 130C 11A 1 T high voltage Not assigned T power low voltage TB terminal z axis input 9100 0241 0360 0104 321 11 02 036 5080 0424 1932 0035 1921 0017 V 6DJ8 dual triode aged V 6DJ8 dual triode special 7586 nuvistor 6DJ8 7586 Not assigned 6DJ8 ECC88 6DJ8 ECC88 6BL8 ECF80 6DJ8 ECC88 NE2 1932 0022 1932 0022 1933 0008 1932 0022 2140 0008 6DJ8 dual triode 6DJ8 dual triode 6BL8 triode pentode 6DJ8 dual triode NE2 neon glow 6BL8 ECF80 A092 NE2 6BC7 1933 0008 2140 0084 2140 0008 1939 0002 6BL8 triode pentode glow lamp aged NE2 neon glow 6BC triple diode lt lt lt lt lt lt lt lt lt Not assigned 5080 0424 1932 0035 1921 0017 V 6DJ8 dual triode aged V 6DJ8 dual triode special V 7586 nuvistor Not assigned 6CW5 EL86 12AU7 NE2 5642 5642 1923 0044 1932 0029 2140 0008 1920 0001 1920 0001 V 6CW5 pentode V 12AU dual triode V NE2 neon glow V 5642 high voltage diode V 5642 high voltage diode 01879 5 6 13 Section VI Model 130C Table 6 2 Table 6 2 Replaceable Parts Cont d Ref Description hp Part No See Table 6 1 E Mfr Par
64. V CM Vertical VERNIER CAL b Connect the Oscillator to the vertical input Note External attenuation of the Oscillator signal is required for this check Use a Model 350D Attenuator Set or load the Oscillator output with a 50 ohm resistor c Set Oscillator frequency to 5 kc d AdjustOscillator amplitude for 10 cm deflection e Connect the AC Voltmeter in parallel with the vertical input f Note reading of AC Voltmeter Change Oscillator frequency to 500 kc Readjust amplitude for AC Voltmeter reading noted in step f if necessary h The deflection should be 7 1 cm or greater i Disconnect the Oscillator and AC Voltmeter 5 11 VERTICAL COMMON MODE REJECTION a Set Vertical SENSITIVITY 0 2 VOLTS CM Vertical VERNIER 0 CAL b Disconnect the grounding link from the center vertical input terminal c Connect the Oscillator between center termi nal and the ground terminal 5 2 Model 130C d Connect a short jumper between the left hand terminal and the ground terminal e Set Oscillator frequency to 50 kc f Adjust Oscillator amplitude for 10 cm deflection g Short center and left hand terminals with the jumper h Set vertical SENSITIVITY to 20 MV CM i The deflection should be 1 cm or less j Set vertical SENSITIVITY to 1 VOLTS CM k Reconnect jumper between left hand terminal and ground terminal m Adjust Oscillator amplitude for 10 cm deflection n Short
65. amplifier is not operating properly the sweep operation will also be affected 5 31 LOW VOLTAGE POWER SUPPLY TROUBLESHOOTING 5 32 The two common troubles in the low voltage supplies are loss of regulation and excessive ripple The following paragraphs outline procedures for isolating faulty components 5 33 EXCESSIVE RIPPLE 5 34 Excessive ripple in any of the supplies may usually be traced to two sources defective filter capacitors or defective transistors The ripple at the output of each supply and at the input to each regulator is given in Table 5 5 If the ripple at the output of any of the supplies is excessive check the 100 volt supply first If its output is normal then check the ripple at the regulator input of the supply in question If the ripple of the unregulated supply is excessive check the filter capacitors and the rectifier diodes If the ripple of the unregulated supply is normal check for defective transistors in the amplifier series and regulator stages 5 35 LOSS OF REGULATION 5 36 The failure of any of the supplies is usually due to transistor failure Table 5 6 provides a sys tematic procedure for troubleshooting each of the Table 5 5 Ripple Measurements Unregulated Output Supply Ripple Ripple 5 5 Section V Model 130C Figure 5 1 H V POWER SUPPLY A301 FUSE 2A HIGH VOLTAGE ADJ R312 INTENSITY LIMIT ASTIGMATISM POWER
66. and measure the high voltage supply output at pin 8 of transformer T401 Table 5 8 Low Voltage Power Supply Adjustment Violet White Red 250 7V Red 12 5 1V White Black Red 01879 2 Section V Paragraphs 5 60 to 5 74 1 If necessary set R312 High Voltage Adj for a Voltmeter reading of 28 5 1 0 volts this responds to 2850 volts at the high voltage output g Recalibrate the Voltmeter 9 68 ASTIGMATISM a Set both horizontal and vertical SENSITIVITY to 20 VOLTS CM b With POSITION controls center a low intensity Spot on the CRT c Alternately adjust FOCUS control and Astig matism adjustment R319 for the smallest sharply focused round spot 5 69 INTENSITY LIMIT a Center a defocused spot on the CRT b Set INTENSITY control to teno clock position c Adjust R307 Intensity Limit to just extinguish the spot 5 70 GROUP ADJUSTMENTS 5 71 The procedures of Paragraphs 5 72 through 5 80 may be followed to calibrate either the vertical or horizontal circuits The Preliminary settings of Paragraph 5 62 must be made first Unless the pro cedure states otherwise make only the setting or connection for the circuit being calibrated that is for either vertical or horizontal The reference designator for the vertical adjustment is given first followed by the corresponding horizontal adjustment e g R47 R238 9 72 VERNIER BALANCE a Set SENSITIVITY to 20 MV CM
67. ature slightly bend chisel tip 1 16 to 1 8 inch diameter soldering iron and a small dia meter high tin content solder If a rosin solder is used clean the area thoroughly after soldering b Components may be removed by placing the Soldering iron on the component lead on either side of the board and pulling up on thelead If heat is applied to the component side of the board greater care is required to avoid damage to the component especially true for diodes If heat damage may occur grip the lead with a pair of pliers to provide a heat sink be tween the soldering iron and component c If a component is obviously damaged or faulty clip the leads close to the component and then unsolder the leads from the board Table 5 7 Sweep Generator Troubleshooting Test Sweep Point Completed Reset V103 Pin 2 100 volts 0 volts Pin 6 92 volts 48 volts Pin 7 44 volts 1 volts V104 Pin 7 45 volts 57 volts 2 4 volts 15 volts 2 3 volts 16 volts 2 3 volts Pin 6 4 9 volts V106 Pin2 4 7 volts Pin 6 195 volts Pin 8 195 volts Pin 9 195 volts V109 Pin 8 9 5 volts 74 volts Pin 9 9 6 volts 74 volts Sweep Completed Connect Pin 2 of V103 to 100 volts VIO wire Reset Connect Pin 2 of V103 to ground 5 10 Model 130C d Large components such as potentiometers and tube sockets may be removed by rotating the soldering iron from lead to lead and applying steady pressure to lift the part free the alte
68. bable cause is misadjustment of the horizontal gain See Section V 2 with no horizontal input when VERTICAL SENSI TIVITY is set to CAL averticalline 5 cm long should be displayed if not the probable cause is misadjust ment of the vertical gain SeeSection V if an internal Sweep time is used a 5 cm p p square wave should be displayed The INTERNAL SWEEP positions of HORIZONT AL SENSITIVITY can beusedto effectively expand a trace from two Screen diameters in X2 to fifty screen diameters in X50 3 8 DC BALANCE 3 9 DC BALANCE control has a range of about 40 screen diameters i e it can effectively move the trace about 400 cm Its purposeis to set internal amplifier operating conditions such that there is a minimum trace shift as SENSITIVITY is switched from range to range or when VERNIER is used This is y important at the more sensitive ranges toward 0 2 MV CM when the AMPLIFIER Switch is set for DC coupling Figure 3 3 provides the procedure for setting vertical and horizontal DC BALANCE properly The setting may change during warmup or extended periods of operation and require periodic readjustment when the instrument is used DC coupled at high sensitivities Note DC BALANCE is a fine control and should additional range be required to balance the amplifier a coarse DC balance adjustment is located within the instrument see Section V for procedure 3 10 LEVEL 3 11 Through its variable range
69. cations SWEEP GENERATOR INTERNAL SWEEP 21 ranges 1 usec cm to 5 Sec cm accuracy within 43 Vernier provides continuous adjustment between ranges and ex tends slowest sweep to at least 12 5 sec cm MAGNIFICATION X2 X5 X10 X20 X50 overall Sweep accuracy within 5 for sweep rates which do not exceed a maximum rate of 0 2 u sec cm AUTOMATIC TRIGGERING Base lineisdisplayed in the absence of an input signal Internal 50 cps to 500 kc signal causing 0 5 cm or more vertical deflection and also from line voltage External 50 cps to 500 kc 0 5 volts peak to peak or more Trigger Slope Positive or negative slope of external sync signals or internal vertical deflection signals AMPLITUDE SELECTION TRIGGERING Internal 10 cps to 500 kc 0 5 cm or more vertical deflection signal External DC dc to 500 kc AC 20 cps to 500 kc coupled 0 5 volts peak to peak or more Trigger Point and Slope Internally from any point of the vertical waveform presented on Screen or continuously variable from 10 volts to 10 volts on either positive or nega tive slope of external signal SINGLE SWEEP Front panel switch permits single Sweep operation VERTICAL AND HORIZONTAL AMPLIFIERS BANDWIDTH DC Coupled DC to 500 kc AC Coupled input 2 cps to 500 kc AC Coupled amplifier 25 cps to 500 kc at 0 2 mv cm Sensitivity Lower cut off frequency fco is reduced as sensitivity is reduced at 20 mv cm feo is 0 25
70. center and left hand terminals with the jumper p Set vertical SENSITIVITY to 0 5 VOLTS CM q The deflection should be 0 6 cm or less r Reconnect jumper between left hand terminal and ground terminal s Set vertical SENSITIVITY to 10 VOLTS CM t Adjust Oscilloscope amplitude for 5cm deflection u Short center and left hand terminals with the jumper v Set vertical SENSITIVITY to 5 VOLTS CM w The deflection should be 0 3 or less x Disconnectthe Oscillator Reconnect the ground ing link 5 12 HORIZONTAL SENSITIVITY a Apply a 1 volt p p signal from the Voltmeter Calibrator to the horizontal input b Set Horizontal INPUT DC Horizontal SENSITIVITY 0 1 VOLTS CM Horizontal VERNIER CAL c Horizontal deflection should be between 9 7 and 10 3 cm d Checkallother SENSITIVITY ranges in the same manner as above using the values shown in Table 5 2 The deflection in each case should be between 9 7 and 10 3 cm 5 13 HORIZONTAL CALIBRATOR a Set Horizontal SENSITIVITY Voltmeter Calibrator output 1 MV CM 5 mv b Adjust horizontal VERNIER for exactly 4 cm deflection c Set horizontal SENSITIVITY to CAL d The deflection should be between 3 88 and 4 12 cm e Disconnect the Voltmeter Calibrator 01879 3 Model 130C 5 14 HORIZONTAL BANDWIDTH a Set Horizontal SENSITIVITY 1 Horizontal VERNIER gt CAL b Conn
71. ctions or adjustments If instrument does not operate as Specified refer to the warranty page of this manual 2 4 RACK INSTALLATION 2 5 The Model 130C is shipped from the factory ready for use as a bench instrument The hardware necessary to rack mount the instrument is packaged with the instrument 1 Remove tilt stand and plastic feet 2 Remove adhesive backed trim strip from sides 3 Attach filter strip along bottom of front panel 4 Attach mounting flanges to sides withlarger notch toward bottom of instrument 2 6 COOLING 2 7 Leave at least two inches clearance around the instrument for free circulationof air In enclosed rack installations be sure that the recirculation of warm air does not result in a high ambient temperature 2 8 POWER REQUIREMENT 2 9 The Model 130C operates on 115 or 230 volts 10 50 to 1000 cps single phase The power re quired is approximately 90 watts Before connecting the instrument to the power source be sure that the 115 230 switch on the rear panel is in the proper position for the power source to be used The line fuse is mounted behind the rear panel and is acces Sible by removing the top cover The 2 ampere fuse Supplied is for either 115 or 230 volt operation 2 10 INSTRUMENT GROUND 2 11 To protect operating personnel the National Electrical Manufacturer s Association recommends that the instrument panel and cabinet be grounded The Model 130C is equipped with a thre
72. d R481 protect the series regulator transistors in each of the supplies If the output of one of the supplies is accidentally shorted the resistor in series with the series regu lator will dissipate excessive power and fail Check each of the series resistors located near the filter capacitors note silkscreen identifiers when a mal function of the low voltage supplies is suspected 5 38 HIGH VOLTAGE POWER SUPPLY TROUBLESHOOTING 5 39 Waveforms and DC voltages which will aid in troubleshooting are shown on the schematic diagram 5 40 Troubles in the high voltage power supply can best be isolated by DC voltage measurements Any decrease in the regulated high voltage is amplified and inverted by V302 and applied to V301 The screen voltage of V301 controls the amplitude of the oscil lator output and thus the high voltage 5 41 AMPLIFIER TROUBLESHOOTING 5 42 Since the vertical and horizontal amplifiers are nearly identical a single troubleshooting pro cedure may be used for both amplifiers 5 43 UNBALANCE 5 44 If the trace cannot be brought on screen with the DC BALANCE control try adjusting R48 in the vertical amplifier or R234 in the horizontal amplifier If the trace is still off screen use the following procedure to localize the unbalance a Set POSITION to midrange b Short grids of output tubes together V2 in vertical V202 in horizontal c If trace remains off screen trouble is in output stage I
73. dified 1n the field Refer back to Section I for in formation on errata in this manual and on any other instrument serialprefixnot coveredin this appendix Instrument Make Numbered Serial Prefix Changes FE FZ E E E E E pw H ru 7 ru 8 ru 9 thru 10 1 thru 11 1 thru 12 1 thru 13 1 thru 14 1 thru 15 dm Figure 5 20 Change value of R405 R406 to 10k ohms Table 6 2 Chang R405 R406 to hp Part No 0727 0157 R fxd depc 10k ohms 1 1 2w Mtr hp Change R407 R408 to hp Part No 0727 0043 R fxd depc 100 ohms 1 1 2w Mfr hp Note If any of these resistors must be replaced itis recommended that all four be replaced with parts presently listed in Table 6 2 CHANGE 2 Figure 5 20 and Table 6 2 Delete CR423 and CR443 CHANGE 3 Figure 5 11 and Table 6 2 Delete CR112 CHANGE 4 Figure 5 7 Change value of C23 to 6800 pf Delete 27 Figure 5 16 Change value of C236 to 100 pf 01879 5 CHANGE 4 cont d Change value of C237 to 015 uf Table 6 2 Change C23 to hp Part No 0160 0159 C fxd my 6800 pf 10 200vdew Delete C27 Change C236 to hp Part No 0160 0153 C fxd my 100 pf 10 200vdew Change C237 to hp Part No 0160 0194 C fxd my 015 10 200vdew Change Q3 Q4 Q203 Q204 to hp Part No 1850 0097 Q ge pnp Mfr hp CHANGE 5 Figure 5 7 Delete C26 Figure 5 16
74. dinthe instrument given only first time the part number is listed c Description of part refer to Table 6 1 d Typical manufacturer of the part in a five digit code except for Hewlett Packard Company see code list of manufacturers Table 6 3 for name e Manufacturer s part number 6 3 Parts not identified by a reference designation are listedatthe end of Table 6 2 under miscellaneous Cabinet parts and the rack mounting kit for the instru ment are illustrated and listed in Figure 6 1 6 4 ORDERING INFORMATION 6 5 To order replacement parts from the Hewlett Packard Company address the order or inquiry to the nearest hp Sales Service Office see list of addresses at rear of this manual and supply the fol lowing information a The hp part number of item s b Model number and eight digit serial number of the instrument 6 6 To order a part not listedin Table 6 2 provide the following information a Model number and eight digit serial number of the instrument b Description of part including function and location 6 7 To order a part from a manufacturer other than the Hewlett Packard Company provide the complete part description and the manufacturer s part number from Table 6 2 Table 6 1 List of Reference Designators and Abbreviations REFERENCE DESIGNATORS A assembly E misc electronic part MP mechanical part TB terminal board B motor F fuse P plug TP test point capaci
75. dition Setting switch S104 back to SINGLE will repeat the single sweep operation 4 30 VERTICAL AMPLIFIER 4 31 The vertical amplifier as shown in the block diagram of Figure 4 5 consists of three basic sec tions 1 input attenuators 2 differential feedback amplifier and 3 output differential amplifier These circuits are explained in detail in Paragraphs 4 32 4 34 and 4 36 4 32 INPUT ATTENUATOR 4 33 The input attenuator consists of two identical frequency compensated voltage dividers which pro vide a constant input impedance of 1 megohm shunted by 45 pf on all ranges of SENSITIVITY for both and inputs Switch S2 selects either capacitive AC or direct DC coupling from the input terminals to the attenuator Capacitors C21 and C22 areusedto adjust input capacitance to 45 pf on SENSITIVITY ranges 0 2 MILLIVOLTS CM to 0 2 VOLTS CM A division 4 DIFFERENTIAL T AMPLIFIER V2A PLATES Figure 4 5 Vertical Amplifier Functional Block Diagram 4 4 DIFFERENTIAL ka AMPLIFIER DEFLECTION 28 PLATES 1 0 4 01879 1 Model 130C ratio of 100 1 on the three least sensitive ranges 5 VOLTS CM to 20 VOLTS CM is provided by R11 R13 and R12 R14 on the two inputs Capacitors C11 and C12 maintain the ratio at high frequencies by capacitive division Capacitors C13 and C14 are adjusted for 45 pf input capacitance on the three least sensitive ranges A division ratio
76. e conductor power cable which grounds the instrument when an appropriate outlet is used The round pin on the power cable is the ground pin connection To retain 01879 2 the protection feature when operating the instrument from a two contact outlet use a three conductor to two conductor adapter and connect the adapter wire to a suitable ground 2 12 REPACKAGING FOR SHIPMENT 2 13 SUGGESTED PACKING MATERIALS age an instrument for shipment some types of original packing materials may be reused or your hp Sales Engineer will help in getting suitable packaging The types of original packing materials which may gener ally be reused are 1 foam which enclosesthe instru ment 2 cardboard layers separated by foam supports and 3 laminated cardboard cut to desired packing Shape Original packing materials which are a card board accordion like filler are not recommended for shipment since the cushioning qualities areusually gone after one use If packing materials recommended above are not available first protect the instrument surfaces with heavy paper or sheets of cardboard flat against the instrument Then place instrument in a durable carton pad all sides with approximately 4 inches of new material designed specifically for package cushioning mark carton clearly for proper handling and insure adequately before shipping 2 14 SHIPMENT FOR SERVICE OR REPAIR If an instrument is being returned to Hew
77. ect the Oscillator to the horizontal input Note External attenuation of the Oscillator signal is required for this check Use Model 350D Attenuator Set or load the Oscillator output with a 50 ohm resistor Set Oscillator frequency to 5 kc d Adjust Oscillator amplitude for 10 cm deflection e Connect the AC Voltmeter in parallel with the horizontal input f Note reading of AC Voltmeter g Change Oscillator frequency to 500 ke Re adjust amplitude for AC Voltmeter reading noted in Step f if necessary h The deflection should be 7 1 cm or greater i Disconnect the Oscillator and AC Voltmeter 5 15 HORIZONTAL COMMON MODE REJECTION a Set Horizontal SENSITIVITY 0 2 VOLTS CM Horizontal VERNIER CAL b Disconnect the grounding link from the center horizontal input terminal c Connect the Oscillator between the center ter minal and the ground terminal d Connect a short jumper between the left hand terminal and the ground terminal e Set Oscillator frequency to 50 kc f Adjust Oscillator amplitude for 10 cm deflection g Short center and left hand terminals with the jumper h Set horizontal SENSITIVITY to 20 MV CM i The deflection should be 1 cm or less j Set horizontal SENSITIVITY to 1 VOLTS CM k Reconnect jumper between left hand terminal and ground terminal m Adjust Oscillator amplitude for 10 cm deflection n Short center and left hand terminals with the jump
78. eneral purpose measurement of AC wave AC 10 forms blocks DC compo nents maximum input is 600 volts peak AC DC APPLICATIONS For observing the DC com ponent of waveforms typical drift 0 3 mV per half hour For observing small low frequency components of waveforms without drift AMPLIFIER switch has no effect on V CM ranges For observing very low frequency components at high sensitivities when large DC level is present Note maximum input limit 01879 1 Model 130C coupling switch has no effect coupling is always DC for these ranges When using amplifier AC coupling in the most sensitive range of 0 2 mV CM at low ambient temperatures the amplifier sensitivity is reduced slightly The reduction is noticeable only at temperatures below 25 C and reaches a maximum of approximately 3 at 3 33 APPLYING INPUT SIGNALS 3 34 For measurements at high amplifier sensi tivities and high impedance levels a shielded input 01879 1 Section III Paragraphs 3 33 to 3 34 connection to the Oscilloscope is desirable The Model 10111A Adapter provides a shielded banana post to female BNC connector Two adapters can be used to provide shielded connections for differential input operation Frequency compensated divider probes listed in Table 1 2 can be used to provide a higher input impedance and thus reduce loading effects on the circuit where measureme
79. ep circuit For the Calibrator adjust 5 88 SWEEP TIME CALIBRATION ment the vertical Check adjustment of horizontal amplifier gain the horizontal amplifier must first be accurately calibrated 5 83 CALIBRATOR a Check adjustment of the vertical amplifier gain as set in Paragraph 5 75 a8 set in Paragraph 5 75 b Set Model 130C as follows LEVEL mid range Horizontal SENSITIVITY INTERNALSWEEP X1 Vertical SENSITIVITY 1 VOLTS CM Connect Time Mark Generator to the Model 130C vertical input h Set Model 130C as follows Vertical SENSITIVITY 50 MV CM Vertical INPUT DC adjust component for one time mark per centimeter SCHEMATIC DIAGRAM NOTES Horiz SENSITIVITY INTERNAL SWEEP Connect a short lead from 500 MV CALIBRATOR output to the vertical amplifier input terminal 10 Time Calibration SWEEP TIME Time Mark setting Generator Unless otherwise indicated resistance is in ohms inductance is in microhenries and capacitance 18 in picofarads 2 Titles enclosed in boxes indicate front panel engraving Vertical SENSITIVITY 20 VOLTS CM b Set DC Voltmeter range to 100V and check voltage at pin 2 of tube V103 Rotate R151 Stability counter clockwise until the trace just disappears If no trace was p
80. er p Set horizontal SENSITIVITY to 0 5 VOLTS CM q The deflection should be 0 6 cm or less Reconnect jumper between left hand terminal and ground terminal S Set horizontal SENSITIVITY to 10 VOLTS CM t Adjust Oscillator amplitude for 5 cm deflection u Short center and left hand terminals with the jumper v Set horizontal SENSITIVITY to 5 VOLTS CM 01879 1 Section V Paragraphs 5 14 to 5 17 w The deflection should be 0 3 cm or less x Disconnect the Oscillator 5 16 PHASE SHIFT a Set Horizontal and Vertical SENSITIVITY 10 VOLTS CM Horizontal and Vertical VERNIER CAL Horizontal and Vertical AMPLIFIER DC Horizontal and Vertical INPUT DC b Connect the Oscillator to both horizontal and vertical input terminals c Set Oscillator frequency to 100 kc d Adjust Oscillator amplitude for 5 cm vertical and horizontal deflection e The minor diameter of the ellipse should be less than 0 1 cm f Check all other SENSITIVITY ranges keeping deflection constant at 5 cm The minor diameter of the ellipse should be less than 0 1 in each case Note On the highest SENSITIVITY ranges external attenuation of the Oscillator signal will be necessary Use a Model 3500 Attenuator Set or load the Oscillator output with a 50 ohm resistor g Disconnect the Oscillator 5 17 TRIGGERING a Set Vertical SENSITIVITY 20 VOLTS CM Horizontal SENSITIVITY
81. ertical adjustment only SWEEP TIME 0 2 MILLISECONDS CM Horiz SENSITIVITY INTERNAL SWEEP X1 Vertical SENSITIVITY 0 2 VOLTS CM 2 For horizontal adjustment only Vertical SENSITIVITY 5 VOLTS CM Horizontal SENSITIVITY 0 2 VOLTS CM f Set Square Wave Generator frequency to 1 kc For horizontal adjustment also set Oscillator fre quency to 500 g Obtain CRT display as follows 1 For vertical adjustment set Square Wave Generator output for about 8 cm deflection 2 For horizontal adjustment set both signal source amplitudes for about 8 cm deflection horizontally and vertically Adjust Oscillator frequency until two distinct square waves are displayed h Set adjustment on Alignment Attenuator for best square wave response it is now adjusted for 45 pf inputs i Adjust C21 C221 Input Capacity for best square wave j Change square wave signal lead through Align ment Attenuator to the input center terminal Ground left terminal k Adjust C22 C222 Input Capacity for best square wave m Disconnect Alignment Attenuator andOscillator Proceed to Paragraph 5 79 step h and complete the adjustment procedure there In step v 2 use Align ment Attenuator as explained 5 81 GROUP Ill ADJUSTMENTS 5 82 The procedures of Paragraph 5 83 through 5 86 allow proper adjustment of the Calibrator circuit 01879 1 Section V Model 130C Paragraphs 5 83 to 5 88 and of the swe
82. erton Calif Hughes Products Division of Hughes Aircraft Co Newport Beach Calif Amperex Electronic Co Div of North American Phillips Co Inc Brindley Semiconductor Corp Carling Electric Inc Hicksville N Y New Hnven Conn Hartford Conn George K Garrett Co Div MSL Industries Inc Federnl Screw Products Inc Fischer Specinl Mfg Co General Industries Co The Goshen Stnmping amp Tool Co JFD Electronics Corp Jennings Radio Mfg Corp Signnlite Inc J H Winns nnd Sons Industrial Condenser Corp R F Products Division of Electronics Corp E F Johnson Co Internntionn Resistance Co CTS Knights Inc Kulka Electric Corporation Lenz Electric Mfg Co Littlefuse Inc Lord Mfg Co C W Marwedel James Millen Mfg Co Inc J W Miller Co Philndelphin Pa Chicngn Ill Cincinnati Ohio Elyrin Ohio Goshen Ind Brooklyn N Y San Josn Calif Neptune N J Winchester Mnss Chicngo Amphenol Borg Danbury Conn Wasecn Minn Philndelphia Pn Sandwich Ill Mt Vernon N Y Chicago Des Plaines 11 Erie Pn San Francisco Calif Malden Mass Los Angeles Calif Cinch Monndnock Div of United Carr Fastener Corp Mueller Electric Co National Union Oek Manufncturing Co Bendix Corp The Bendix Pacific Div Pacific Mntals Co Leandro Calif Clevelnnd Ohio Newnrk N J Crystal Lake 111 N Hollywood Cal
83. f trace returns proceed to step d d Turn the instrument off e Switch AMPLIFIER to DC 01879 3 Measure voltage across CR422 Short emitter to collector of Q422 Short emitter to collector of Q423 f Connect ground lead of ohmmeter to chassis g Compare resistance readings at corresponding points in both halves of the amplifier Unsymmetrical readings will indicate a source of unbalance h If resistance readings do not point out the source of the unbalance proceed to step i i Turn instrument on switch AMPLIFIER to AC and set SENSITIVITY to BAL position j Measure DC voltages at corresponding points in both halves of the amplifier k Switch AMPLIFIER to DC m Repeat voltage measurements made in step j Compare readings made in steps j and m with voltages shown on schematics Any significant deviation should indicate location of the trouble 9 45 GAIN 5 46 If the gain of the amplifier cannot be set pro perly with Gain adjustment R69 in vert R263 in horiz try the next higher sensitivity range If the gain cannot be set on this range change V2 in vertical amplifier or V202 in horizontal amplifier and check the high voltage output ref Paragraph 5 67 5 47 LOW FREQUENCY NOISE 5 48 If low frequency noise is visible on the trace try changing the input tube V1 invert V201 in horiz If this does not cure the trouble change the second stage transistors Q1 2
84. ff screen trace to screen and intensifies trace see Paragraph 3 14 FOCUS Adjusts trace sharpness INTENSITY Adjusts trace brightness When rotated fully counterclockwise turns power off CALIBRATOR Provides 500 mv p p square wave for compensating probes or for use in external circuitry Z 10 KQ Vertical input terminal Negative going sig nals applied to this terminal cause upward deflection of the trace Vertical input terminal Positive going sig nals applied to this terminal cause upward deflection of the trace Vertical DC BALANCE Model 130C INPUT AC DC Selects direct or capacitive coupling of the input signal see Paragraph 3 31 AMPLIFIER AC DC Selects internal direct or capacitive coupling on 7 highest sensi tivity ranges see Paragraph 3 31 Adjusts internal DC levels to minimize trace shift when chang ing sensitivity ranges or using VERNIER Vertical POSITION Moves trace vertically Vertical SENSITIVITY Sets the deflection sensitivity of the trace Calibrated SENSI TIVITY when VERNIER is fully cw detented position VERNIER Variable portion reduces deflec tion sensitivity for range selected Allows continuous adjustment between ranges ex tends minimum sensitivity to 50 V CM Cali brated SENSITIVITY when set to CAL Figure 3 1 Controls and Terminals Vertical CRT Display and Power 01879 1 Model 130C Section III Paragraphs 3 1
85. fxd metflm 20 k ohms 196 1 8w Mfr hp Add R410 hp Part No 0757 0765 R fxd metflm 36 5 k ohms 196 1 4w Mfr hp Add R412 hp Part No 0757 0438 R fxd metflm 5110 ohms 196 1 8w Mfr hp Add R413 hp Part No 0698 3132 R fxd metflm 261 ohms 196 1 8w Mfr hp V401 V402 Delete 9 January 1970 Supplement A for 130C 905 A Latest additions to this chenge sheet This change sheet supersedes all prior change sheets for this manual Manual Changes Model 130C Page 2 3 Instrument Serial Prefix Make Manual Changes Instrument Serial Prefix Make Manual Changes CHANGE 2 Page 5 25 Figure 5 20 Replace Calibrator portion of schematic with Figure 1 cut out and permanently attach in manual Note New calibrator components are located in same area of LVPS circuit board A401 Table 6 2 A401 Change to hp Part No 130C 65N Mfr hp Add R411 hp Part No 0757 0441 R fxd metflm 8250 ohms 196 1 8w Mfr hp Add R412 hp Part No 0757 0438 R fxd metflm 5110 ohms 196 1 8w Mfr hp CHANGE 3 Page 5 25 Figure 5 20 Replace Calibrator portion of schematic with Figure 2 cut out and permanently attach in manual Note New calibrator components are located in same area of LVPS circuit board A401 Table 6 2 A401 Change to hp Part No 130C 65P Mfr hp A402 Change to hp Part No 2100 2743 var 5000 5000 3000 ohms 396 1 4w Mfr hp Add R411 hp Part No 0757 0443 fxd metflm 11 k ohms 196 1 8w Mfr hp CHANGE 4 Page
86. gure 5 12 Sweep Time Switch A175 Component Location 5 20 01879 1 Figure 5 13 FROM 1964 BY AGKARD CO TO SWEEP OUTPUIT SWEEP_OUTAI FO HOLD OFF MOC Sw SW gt 3364 INTEGRATOR GRID CATHODE FOLLOWER TO 202 CATHODE FOLLOWER VIOGA 2 1068 PIN 8 THRU 6219 9 TTT TTT TT T OO w oe RED A 9 tz 0 PART OF AIOI SWEEP GEN ASSY El Ho 1 1 TIME iur i ro ro o pre 3 s 1 t o E ot r re Q 5 Yi SWEEP TIME ro p Ho Cu m o 7I00V A o L Figure 5 13 Sweep Time Schematic 5 21 Section V Model 130C Figures 5 14 and 5 15 cox ON OPPOSITE SIDE OF BOARD Figure 5 14 Horizontal Attenuator A202 Component Location Pigure 5 15 Horizontal Amplifier A201 Component Location FACTORY SELECTED PART MAY HAVE BEEN OMITTEO Section Figure 8 16
87. hms 5 1 2w 3625 0686 3625 fxd comp 3600 ohms 5 1 2w EB 3625 0687 8231 fxd comp 82k ohms 10 1 2w EB 8231 2100 0379 var comp 10k ohms 30 1 4w 0687 5621 fxd comp 5600 ohms 10 1 2w EB 5621 0687 8211 fxd comp 820 ohms 10 1 2w EB 8211 0687 1011 fxd comp 100 ohms 10 1 2w EB 1011 0687 1231 fxd comp 12k ohms 10 1 2w EB 1231 Not assigned 0687 1531 fxd comp 15k ohms 10 1 2w EB 1531 0687 1021 fxd comp 1000 ohms 10 1 2w EB 1021 0687 4741 1 fxd comp 470k ohms 10 1 2w EB 4741 0687 1011 fxd comp 100 ohms 10 1 2w EB 1011 0687 2711 fxd comp 270 ohms 10 1 2w EB 2711 0693 4731 1 fxd comp 47k ohms 10 2w HB 4731 0687 1041 fxd comp 100k ohms 10 1 2w EB 1041 NSR p o A303 2100 0171 1 var comp 200k ohms 20 1 4w includes 5401 0687 1031 fxd comp 10k ohms 10 1 2w EB 1031 0687 1031 R fxd comp 10k ohms 10 1 2w EB 1031 0686 3055 1 R fxd comp 3 megohms 5 1 2w EB 3055 NSR p o A303 0693 4751 2 R fxd comp 4 7 megohms 10 2 HB 4751 0693 4751 fxd comp 4 7 megohms 10 2w HB 4751 0693 5651 2 fxd comp 5 6 megohms 10 2 HB 5651 0693 5651 fxd comp 5 6 megohms 10 2 HB 5651 2100 0374 1 var comp 5 megohms 30 1 2w 0687 2241 1 R fxd comp 220k ohms 10 1 2w EB 2241 SR p o A303 0687 4731 4 fxd comp 47k ohms 10 1 2w EB 4731 0687 1051 fxd comp 1 megohm 10 1 2w EB 1051 0687 2731 fxd comp 27k ohms 10 1 2w EB 2731 0836 0003 1 fxd 29 megohms
88. if San Francisco Calif Phanostrnn Instrument and Electronic Co South Pnsndnna Calif Philadelphia Steel and Wire Corp Philadelphin Pn American Machine amp Foundry Co Potter amp Brumfield Div TRW Electronic Components Div Princetnn Ind Camden N J General Instrument Corp Rectifier Div Resistance Products Co Rubbercraft Corp of Cnlif Brooklyn N Y Hnrrisburg Pa Torrnnce Calif Shakeproof Division of Illinois Tool Works Signnl Indicntor Corp Struthers Dunn Inc Thompson Bremer amp Co Tilley Mfg Co Stnckpole Cnrbon Co Stnndnrd Thomson Corp Tinnermnn Products Inc Transformer Engineers Ucinite Co Waldes Kohinoor Inc Veeder Root Inc Wenco Mfg Co Elgin New York N Y Pitmnn N J Chiengo Francisco Calif St Marys Pn Waltham Mass Cleveland Ohio San Gabriel Calif Newtonville Mass Long Island City N Y Hartford Conn Chicago Continentnl Wirt Electronics Corp Zierick Mfg Corp Philadelphia Pa New Rochelle N Y Code No 80031 80120 80130 80131 80207 80223 80248 80294 80411 80486 80509 80583 80640 81030 81073 81095 81312 81349 81483 81541 81860 82042 82047 82142 82170 82209 82219 82376 82389 82647 82768 82866 82877 82893 83053 83058 83086 83125 83148 83186 83298 83315 83330 83385 83501 83594 83740 83777 83821 83942 84171 84396 84411 8
89. imes where the automatic trigger baseline would be too dim a free run mode may be used to provide a bright base line display An off screen trace may be easily located by depressing a front panel Beam Finder Button which returns the trace to the screen regardless of intensity balance or position settings Careful engineering design of the Model 130C has resulted in high stability of gain and minimal DC drift The Model 130C has an internal graticule CRT which eliminates parallax ambiguity and minimizes reflections and glare Theinstrument is packaged in the hp modular cabinet allowingquick easy conversion to rack mounting and also provides easy accessibility to internal circuits for maintenance 1 3 MANUAL IDENTIFICATIONAND CHANGES 1 4 Information in this manual applies directly to Model 130C instruments with a serial prefix of 644 see manualtitle page The serial prefix of a hp instrument is the first three digits i e those before the dash as XXX 00000 of the serial number stamped ona plate attached to the rear panel Appendix I contains information on changes required to adapt this manual to an instrument with any serial prefix listed there A separatechange sheet included with this manual provides informationto adapt this manual to an instrument withany serialprefixother than those mentioned in this paragraph or AppendixI Any errors in this manual when it was printedare called ERRATA and these corrections will appear o
90. in vert Q201 202 in horiz 9 49 COMPRESSION 5 50 If the signal waveform is compressed inampli tude when the trace is moved to the top or bottom of the screen check that the output stage current is adjusted properly ref Paragraph 5 74 then try changing the output tube 5 51 SWEEP GENERATOR TROUBLESHOOTING 5 52 If the horizontal amplifier is not operating properly the sweep operation not sweep circuit will also be affected If a sweep malfunction is observed first check the horizontal amplifier If the horizontal 9 9 Section V Paragraphs 5 53 to 5 59 amplifier is operating properly check typical wave forms shown in Figure 5 8 located near schematic proceed to the steps below a Set LEVEL to FREE RUN If thesweepoperates check V101 V102 and CR111 If the sweep does not operate proceed to step b b Check DC voltage in each of the states shown in Table 5 7 A 10 to 15 deviation from the values shown in the table can be expected larger deviations indicate a source of trouble 5 53 REPAIR AND REPLACEMENT 5 54 Circuit boards used in the Model 130C have components on one side of the board and a plated conductive metal layer through component holes When removing or replacing etched circuit components the important steps and considerations f Service Note M 20D also contains useful information on etched circuit repair a Use low heat 37 to 47 5 watts less than 800 idling temper
91. ith spst switch DS 6 volt incandescent ert Pl phosphor w o internal graticule ert P2 phosphor w o internal graticule crt P7 phosphor w o internal graticule ert P11 phosphor w o internal graticule crt P31 phosphor w o internal graticule 5083 0310 5083 0320 5083 0330 5083 0340 5083 0350 OPTION 06 1250 0083 J BNC type UG 1094 U p 1251 0038 P female 3 pin cable mount CA310610SL 3S A105 1251 0039 J male 3 pin bulkhead mount A3102A10SL 3P A105 1251 0040 E clamp cable AN3057 4 130C 16V Cable rear horiz and vert input 130C 16W Cable rear sync input OPTION 13 Delete the following standard components 130C 2A Panel front 3101 0040 S slide dual dpdt A3 A103 and A203 5060 0734 Casting frame side 5060 0763 Handle side 5060 0765 Retainer handle 5060 0767 Foot plastic 5060 0776 Kit rack mount 5000 0052 Plate trim adhesive back Add the following special components 130C 2E Panel front 120B 37A Bar panel mounting 120B 47A Support panel 120B 5B Casting frame side p 3101 0928 S slide dual dpdt A3 A103 and A203 6603 A2 SPEC 0 2 01879 2 MANUAL CHANGES MODEL 130C OSCILLOSCOPE Manual Serials Prefixed 644 Manual Printed NOV 1966 Make all changes in this manual according to the Errata below Also check the following table for your instrument serial prefix 3 digits and or serial number 8 digit
92. l 130C Section III Figure 3 8 SWEEP TIME VERNIER 9 0 130C A 8 Connect Y signal to vertical input Connect X signal to horizontal input Set SENSITIVITY for desired deflection Set VERNIER to CAL for calibrated sensitivity Adjust POSITION for desired vertical position Set SENSITIVITY for desired deflection Set VERNIER to CAL for calibrated sensi tivity Adjust POSITION for desired horizontal posi tion Figure 3 8 X Y Operation 01879 1 3 11 ON ad Model 130C ac pc 9 AMPLIFIER 20 00 SERS 7 BE BALANCE BEAM FINDER 1 T TO CRT VERTICAL VERTICAL VERTICAL INPUT AMPLIFIER DEFLECTION I PLATES I 1 1 _ O TRIGGER SOURCE SLOPE 7 O TRIGGER LEVEL 1 TRIGGER SWEEP SWEEP TIME SWEEP TIME GENERATOR VERNER VERNIER omms NORMAL SINGLE A X lt 1 TO CRT I HORIZONTAL HORIZONTAL HORIZONTAL I INPUT AMPLIFIER DEFLECTION PLATES N N N R JO Position POSITION EA M DC BALANCE N w N I CRT SENSITIVITY cae AMPLIFIER AC DC Y LOW HIGH VOLTAGE VOLTAGE 500 MV CALIBRATOR POWER POWER SUPPLIES
93. le Parts Cont d Description See Table 6 1 Mfr Mfr Part No 0727 0158 R fxd depc 10 1k ohms 1 1 2w hp 0727 0210 R fxd depc 111k ohms 1 1 2w hp 0727 0210 R fxd 111k ohms 1 1 2w hp 0727 0237 R fxd depc 376k ohms 1 1 2w hp 0727 0230 R fxd depc 284k ohms 1 1 2w hp 2100 0376 R var comp 50k ohms 20 1 2w hp 0687 3331 R fxd comp 33k ohms 10 1 2w 01121 EB 3331 0727 0130 fxd 3895 ohms 1 2 1 2w hp 0727 0274 R fxd depc 1 megohm 1 1 2w hp 0727 0274 R fxd depc 1 megohm 1 1 2w hp 0687 1041 R fxd comp 100k ohms 10 1 2w EB 1041 0687 1041 R fxd comp 100k ohms 10 1 2w EB 1041 NSR p o A204 R fxd comp 150k ohms 5 1 4w R fxd comp 150k ohms 5 1 4w CB 1545 CB 1545 0683 1545 0683 1545 0683 4715 0683 4715 2100 0138 R fxd comp 470 ohms 5 1 4w R fxd comp 470 ohms 5 1 4w R var comp 50 ohms 10 2w NSR p o A204 R fxd metflm 45 3k ohms 1 1 2w 0757 0977 R fxd metflm 45 3k ohms 1 1 2w R fxd comp 100 ohms 10 1 2w NSR p o A204 fxd metflm 8200 ohms 5 1 2w fxd comp 10k ohms 5 1 2w 0757 0977 0687 1011 EB 1011 0758 0048 0686 1035 EB 1035 0757 0370 fxd metflm 49 9k ohms 1 1 2w 0757 0370 fxd metflm 49 9k ohms 1 1 2w 0686 3635 fxd comp 36k ohms 5 1 2w EB 3635 0686 3635 fxd comp 36k ohms 5 1 2w EB 3635 0686 1045 fxd comp
94. lectric Co Van Nuys Calif 14960 Williams Mfg Co San Jose Celif 00929 Microlab Inc Livingston N J 07126 Digitran Co Pasadena Calif 15203 Webster Electronics Co New York N Y 01009 Alden Products Co Brockton Mass 07137 Transistor Electronics Coro Minneapolis Minn 15291 Adjustable Bushing Co N Hollywood Calif 01121 Alten Bradley Co Milwaukee Wis 07138 Westinghouse Electric Corp 15558 Micron Electronics 01255 Litton Industries Inc Beverly Hills Calif Electronic Tube Div Elmira N Y Garden City Long Islend N Y 01281 TRW Semiconductors Inc Lewndale Celif 07149 Filmohm Corp New York N Y 15566 Amprobe Inst Corp Lynbrook N Y 01295 Texas Instruments Inc 07233 Cinch Graphik Co City of Industry Calif 15772 Twentieth Century Coil Spring Co Transistor Products Div Dallas Texas 7261 Avnet Corp Culver City Calif Santa Clara Calif 01349 The Alliance Mfg Co Alliance Ohio 07263 Fairchild Camere amp Inst Corp 15818 Ametco Inc Mt View Calif 01589 Pecific Relays Inc Van Nuys Calif Semiconductor Div Mountain View Calif 15909 Daven Div Thomas A Edison Ind 01930 Amerock Corp Rockford 111 07322 Minnesota Rubber Co Minneapolis Minn McGraw Edison Co Long Island City N Y 01961 Pulse Engineering Co Senta Clara Calif 07387 Birtcher The Monterey Park Calif 16037 Spruce Pine Mica Co Spruce Pine N C 02114 Ferroxcube Corp of America Saugerties N Y 07700 Technical Wire Product
95. lett Packard Company for servicing or repair attach a tag to the instrument specifying owner desired action model number and serial number Ship the instrument to the nearest hp Sales Service Office addresses atrear of this manual should refer to an instrument by Model number and the full eight digit serial number 2 15 INSTALLATION OF AMBER FILTER 2 16 An amber filter hp Part No 120A 83A is supplied with the Model 130C Option 07 This filter may be used to improve the long persistence charac teristics desired for observing single shot or very low frequency displays To install the filter remove CRT bezel and proceed as follows a Set filter into bezel aligning the large rectang ular slots in the filter edge with guides in the bezel casting and sliding the filter down into the casting b Loosen the clamp at the CRT socket Carefully push the CRT toward the rear of the instrument to provide clearance for the thickness of the filter approximately 1 8 inch c Re install the bezel and slide CRT forwarduntil light mask on front of CRT just touches filter d Tighten clamp to keep CRT from rotating Note Over tightening clamp may damage CRT e Check alignment of trace with graticule If necessary adjust R329 Trace Align rear panel 2 1 Section II Figure 3 1 3 12 1 io 9 Q Power on indicator Glows when AC power is switched on BEAM FINDER Returns o
96. lifier V2A and V2B 01879 2 Section IV Paragraphs 4 34 to 4 40 4 36 OUTPUT AMPLIFIER 4 37 The output differential amplifier V2A and V2B provides the voltage swing necessary to drive the deflection plates of theCRT Cross neutralization of the output stages is accomplished by adjustable capacitors C48 and C49 shunted by C53 which couple in phase signals from the plates of the tubes to the opposite grids A voltage divider consisting of R75 and R77 in the plate circuit of V2A divides the output signal for use as an internal synchronizing signal for the sweep generator Constant current source V3 is an active impedance functioning as a high common cathode impedance to achieve high differential gain without the use of a large cathode resistor and negative supply Resistor R83 sets the bias on V3 hence the current to theoutput differential amplifier The setting of R83 interacts with R59 There are two front panel variable controls in the output amplifier SENSITIVITY VERNIER and POSI TION When rotated ccw VERNIER R70 decreases the gain i e reduces sensitivity of the amplifier by introducing degeneration in the cathodes of V2 Ver tical movement of the trace is accomplished by POSI TION R 8 which feeds back differential currents through R73 and R74 This results in a differential change in Q3 and Q4 collector currents and a differ ential voltage change at the grids of V2 Resistors R79 and R80 ensure that regardless of
97. nce voltage is amplified and applied to Driver Q462 and Series Regulator Q461 The voltage applied to Series Regulator Q461 is out of phase i e when the output voltage of the supply rises the voltage applied to Q461 causes the series voltage drop to increase returning the supply voltage to its originallevel In this way any variations in output voltage due to load change or line voltage change are sensed by the differ ential amplifier and corrected by the series regulator Potentiometer R468 adjusts the output voltage to exactly 100 volts 4 8 100 and 250 VOLT SUPPLIES 4 9 The 100 and 250 volt supplies operate in the same manner as the 100 volt supply A sample of the output voltage is compared to a reference voltage the 100 volt supply and the difference voltage ampli fied and applied to a series regulator The series regulator corrects for the variations in output voltage The 250 volt is on the 100V supply and the two are interdependent 4 10 12 5 VOLT SUPPLY 4 11 The 12 5 volt supply is dependent only on the 100V supply and uses a single series regulator Q481 with a Zener diode reference CR482 Any variation in supply voltage is coupled through the reference diode This results inabase current change for Q481 which is amplified and acts to vary the supply load current providing the supply regulation 01879 1 4 12 HIGH VOLTAGE POWER SUPPLY 4 13 The high voltage power supply pro
98. nction and appearance except that the horizontal SENSITIVITY has six internal Sweep positions 3 5 REAR PANEL The power cord connector line fuse and 115 230 volt switch are described in Paragraph 2 8 TRACE ALIGN is a screwdriver adjustment to align the CRT trace with the graticule Relocating or reorienting the instrument within a magnetic field such as the earth s field may require adjustment of this controlto maintain exact alignment The Z AXIS INPUT allows trace intensity modulation by applying a modulating signal with the shorting link removed At normal trace intensity set on front panel a 420 volt pulse will blank the trace If not using the Z AXIS INPUT terminals be sure the shorting link is in place 3 6 SENSITIVITY 3 7 SENSITIVITY control vertical or horizontal Bets the deflection sensitivity of the display in milli volts per centimeter or volts per centimeter when VERNIER is in CAL position In BAL position of the SENSITIVITY switch the amplifier input is grounded and the input terminals are opened to facilitate setting of the amplifier DC balance see Paragraph 3 8 and Figure 3 3 Inthe CAL position an internal calibrator signalis applied to the amplifier input and the calibration accuracy can be checked by noting the deflection on the CRT as follows 1 with 01879 1 no vertical input when HORIZONTAL SENSITIVITY and VERNIER are set to CAL a horizontal line 5 cm long should be displayed if not the pro
99. nly on the separate change sheet included Note Instruments with serial prefix 226 235 or 248 require a different manual written for the 235 prefix hp Part No 130C 901 for correct information Figure 1 1 Model 130C Oscilloscope 01879 5 1 1 Section I Paragraph 1 5 to 1 10 1 5 CRT WARRANTY 1 6 The cathode ray tube used in the Model 130C is covered by a warranty separate from the instrument warranty The CRT warranty is included at the back of the manual for your use in the event of CRT failure during the warranty period 1 7 EQUIPMENT SUPPLIED OR AVAILABLE 1 8 Each instrument is supplied with detachable power cable and rack mounting hardware Other equipment available for use with the Model 130C is listed in Table 1 2 1 9 OPTIONS COVERED 1 10 This manual applies to Model 130C instruments with the options listed and described in Table 1 3 Refer to Appendix II for complete information on all options Model 130C Table 1 2 Equipment and Accessories Available 1110A Clip on AC Current Probe 1111A Current Amplifier for 1110A 10001A C Compensated 10 1 divider probe 5 ft cable 10001B D Compensated 10 1 divider probe 10 ft cable 10002A C Compensated 50 1 divider probe 5 ft cable 10002B D Compensated 50 1 divider probe 10 ft cable 10025A General purpose straight through probe 10100B 100 ohm termination for 1110A 10111A Adapter BNC female to dual banana plug
100. nts are made The 500 mV CALIBRATOR output on the Model 130C front panel may be used for probe compensation adjust ment described in the Operating Note for the probe The Model 10111A Adapter is necessary for connecting the divider probes to the Model 130C inputterminals Section II Figure 3 3 p s mg Sum qu 3 6 Note Steps 2 through 6 are for both horizontal and vertical controls Set INTENSITY to mid range Set AMPLIFIER and INPUT to AC Set DC BALANCE and POSITION to mid range Set SENSITIVITY to BAL Set VERNIER to CAL Center spot with POSITION Set vertical AMPLIFIER to DC Center spot with vertical DC BALANCE If spot is not on CRT depress BEAM FINDER and set DC BALANCE so spot is about centered on CRT Release BEAM FINDER andifneces sary refine DC BALANCE setting so spot is centered on CRT spot will always travel up and down near the vertical center graticule line Vertical amplifier is now DC Balanced Model 130C Note If spot cannot be centered with DC BAL ANCE at about its mid range check the coarse balance adjustment internal ac cording to Section V procedure To balance the horizontal amplifier first set vertical AMPLIFIER to AC and horizontal AMPLIFIER to DC Center spot with horizontal DC BALANCE If spot is not on CRT depress BEAM FIND ER and set DC BALANCE so spot is about centered on CRT Release BEAM FINDER and if necessary refine DC BALANCE set ting so spot is cente
101. nuous adjustment between ranges ex tends minimum sensitivity to 50 V CM Cali brated SENSITIVITY when set to CAL Horizontal DC BALANCE Adjusts internal DC levels to minimize trace shift when chang ing sensitivity ranges or using VERNIER Figure 3 2 Controls and Terminals Horizontal Sweep and Triggering 01879 1 Model 130C the horizontal sweep is free running at a rate deter mined by the sweep time setting and cannot be con trolled by a triggering signal 3 12 NORMAL SINGLE 3 13 When NORMAL SINGLE is set to NORMAL the horizontal sweep operates recurrently as determined by the triggering signal In SINGLE position the Sweep can be triggered only once after which it is locked out until armed by switching to NORMAL and back to SINGLE The ARMED light is on in SINGLE position when the sweep is armed and ready to be triggered To use the single sweepoperation LEVEL must be set anywhere in its variable range i e not in AUTO or FREE RUN See also Paragraph 3 24 3 14 BEAM FINDER 3 15 This paragraph will explain operation and function of the BEAM FINDER and also discuss some causes of no CRT display The BEAM FINDER push button is useful for locating a display which is not visible on the CRT for these common reasons 1 DC unbalance in amplifier at high sensitivities and AMPLIFIER DC coupling 2 amplifier being over loaded at input or 3 intensity settoolow Depressing the BEAM FINDER defocuses
102. o the lower end of the sweep may be clamped to zero volts 01879 2 Section IV Paragraphs 4 19 to 4 27 4 24 SWEEP TERMINATION AND HOLD OFF 4 25 Termination of a sweep is accomplished by feeding back the positive going sweep voltage to the input of the gate generator The feedback path is through hold off diode V109C which conducts during the sweep and hold off cathode follower V103B The feedback voltage on V103B grid causes the cathode voltage to cross the upper hysteresis limit ofthe gate generator The time required for this feedback to reach the upper hysteresis limit is determined by the sawtooth slope thus setting the time between sweeps The gate generator changes state to produce a neg ative voltage step at the plate of V103A and a positive voltage step at the plate of V104B The negative volt age step is fed through gate output cathode follower V104A to the high voltage power supply blanking the CRT beam until a new sweep begins The positive voltage step at the plateof V104B causes diodes V109A and V109B to conduct The sweep timing capacitor discharges quickly through the clamp diode V109B clamping the sweep output to a constant level and producing the retrace portion of the sweep waveform The two diodes return the sweep output to the same reference level as the gridofintegrator V106A Hold off diode V109C is cut off by the fast negative drop of the retrace i e as timing capacitor discharges but instead of a ra
103. ode voltage This grid cathode voltage change is amplified and applied to the screen grid ofOscillator V301 to control theoutputamplitude of the oscillator The change is always in the proper direction to cor rect for change in high voltage 4 14 INTENSITY control R308 varies the CRT cath ode voltage varying the intensity of the spot or trace on the CRT screen FOCUS control R317 varies the focus grid voltage for trace focus Astigmatism adjustment R319 varies the voltage on theaccelerator to adjust beam geometry for a round spot 4 15 SWEEP GENERATOR 4 16 Refer to Figure 4 4 for a block diagram of the sweep generator circuitry The trigger generator produces signals which synchronize the sweep with internal signals from the vertical amplifier or power line or with external trigger signals In Figure 4 4 circuits represented in blocks to therightofthe Trig ger Generator produce a linear sweep voltage saw tooth wave shape which is amplified by the horizontal amplifier and applied to the CRT deflection plates 4 17 TRIGGER GENERATOR 4 18 The trigger generator consists ofdifferential amplifier V101 and Schmitt trigger V102 Thetrigger UNBLANKING TO HVPS TIMING RESISTOR TIMING CAPACITOR N 5104 SINGLE SWEEP OUTPUT TO HORIZONTAL AMPLIFIER Figure 4 4 Sweep Generator Functional Block Diagram 4 2 01879 1 Model 130C signal whether power line internal or external is
104. ontroller Co Westminster Md Snnborn Compnny Wnithnm Mass Shallcross Mfg Co N C Simpson Electric Co Chicngo Sonotone Corp Elmsford N Y Raytheon Commercial Appnratus 4 Systems Div So Norwalk Conn Spaulding Fibre Co Inc Tonnwnndn N Y Sprngun Electric Co North Adams Mass Telex Inc St Minn Thomns amp Betts Co Elizabeth N J Triplett Electricni Inst Co Bluffton Ohio Union Switcb and Signal Div of Westinghouse Air Brake Co Pittsburgh Pn Universnt Electric Co Owosso Mich Ward Leonard Electric Co Mt Vernon N Y Western Electric Co Inc New York N Y Weston Inst Inc Weston Newnrk Newark N J Wittek Mfg Co Chicago Revere Wollnnsnk Div Minn Mining amp Mfg Co t Pnul Minn Allen Mfg Co Hartford Conn Screw Product Co Inc Garden City N Y Atlantic India Rubber Works Inc Chicngo Ill Amperite Co Inc Union City NJ Belden Mfg Co Chicago III Bird Electronic Corp Cleveland Dhio Birnbach Radio Co New York N Y Boston Gear Works Div of Murray Co of Texns Quincy Mass Bud Radio Inc Willoughby Ohio Camioc Fastener Corp Pnramus N J Cardwell Condenser Corp Lindenhurst L 1 N Y Bussmann Mfg Div of McGraw Edison Co t Louis Mo Chicago Condenser Corp Chiengo IIl Cnlif Spring Co Inc Pico Rivera Calif CTS Corp Elkhart ind ITT Cannon Electric Inc Los Angeles Calif Cinema Plant Hi Q Div Aero
105. or Q464 shorted 100V High or Short emitter to base of Q464 Output remains low Q464 shorted Low Output Output rises Q463 open Check output of 100 suppiy Either abnormal t m and or 12 5 supply High Output Disconnect base lead of 0441 WHT Output remains high Q441 shorted RED GRN lead connecting to edge of board near rear of instrument Output drops Q441 good Short emitter to collector of Q443 Output remains high Q442 open Output drops Q443 open Low Output Short emitter to base of Q442 Q443 shorted Output remains low Q442 shorted or Q441 open Measure voltage between emitter and Q442 shorted collector of Q442 greater than 2 voits Q441 open 250 High or Check 100 and 100 supplies 250 supply Low Output Abnormal 100 or 100 supplies 5 8 near back of instrument Output drops Q421 good Output remains high Q422 shorted Output drops Q423 shorted 01879 3 Short emitter to base of Q422 High Output Disconnect base lead of Q421 GRN Output remains high Q421 shorted lead connecting to edge of board Model 130C Section V Paragraphs 5 37 to 5 52 Table 5 6 Low Voltage Supply Troubleshooting Cont d low voltage power supplies The transistors associ ated with the low voltage supplies are located on the low voltage power supply circuit board and at the rear of the instrument For the location of the eircuit board refer to Figure 5 1 5 37 Resistors R421 R441 R461 an
106. or FREE Distribution Only
107. oro Mnss Clifton N J Greenwich Conn Phillips Advnnce Control Co Joliet Ill Resenrch Products Corp Mndison Wis Rotron Mfg Co Inc Woodstock N Y Vector Electronic Co Glendnie Calif Western Washer Mfg Co Los Angeles Cnlif Fastener Co Cnmbridge Mass New Hampshire Ball Bearing Inc Peterborough N H General Instrument Corp Capacitor Div Darlington 5 C Los Angeles Cnlif Springfield Red Bank N J Mundelein Brooklyn N Y Chicagn ITT Wire and Cable Div Victory Engineering Corp Bendix Corp Red Bank Div Hubbell Corp Smith Herman H Inc Central Screw Co Gavitt Wire and Cable Co Div of Amerace Corp Brookfield Mass Burroughs Corp Electronic Tube Div Pininfield N J Union Carbide Corp Consumer Prod Div New York N Y Huntington Ind Festus Mo Lodi N J Great Neck N Y Snn Francisco Calif Neb Bloomington Ind Boonton J Model Eng and Mfg Inc Loyd Scruggs Co Aeronnutical Inst amp Radio Co Arco Electronics Inc A J Glesener Co Inc TRW Capacitor Div Sarkes Tnrzian Inc Boonton Molding Company From FSC Handbook Supplements H4 1 Dated JULY 1965 H4 2 Dated NOV 1962 6 17 Section VI Table 6 3 Table 6 3 Code List of Manufacturers Cont d Code No 85471 85474 85660 85911 86197 86579 86684 87034 87216 87473 87664 87930 88140 88220 88421 88698 89231 89665 90179 90
108. os Spring Co Oakland Calif Tru Con nector Corp Peabody Mass Elgeet Optica Co Inc Rochester N Y Universal Industries Inc City of Industry Calif Tensolite Insulated Wire Co Inc Tar ytown Sylvania Electric Prod Inc Semiconductor Div Woburn Mass Robbins and Myers Inc New York Stevens Mfg Co Inc Mansfield Ohio G V Controls Livingston N J 42 Revised July 1966 6 18 Code No 94137 94144 94148 94154 94197 94222 94310 94330 94682 94696 95023 95236 95238 95263 95264 95265 95275 95348 95354 95712 95984 95987 96067 96095 96256 96296 96330 96341 96501 97464 97539 97979 97983 98141 98159 98220 98278 98291 Monufacturer Address General Cable Corp Raytheon Co Comp Div Ind Comp Operations Quincy Mass Scientific Electronics Products Inc Loveland Colo Newark N J Bayonne N J Tung Sol Electric Inc Curtiss Wright Corp Etectronics Div East Paterson N J South Chester Corp Chester Pa Tru Ohm Products Memcor Components Div Huntington ind Wire Cloth Products Inc Beliwood 11 Worcester Pressed Aluminum Corp Worcester Mass Magnecraft Electric Co Chicago 111 George A Philbrick Researchers inc Boston Mass Miami Fia Woodside N Y Long Island N Y Burbank Calif Sheridan Wyo Bridgeport Conn Bloomfield N J Allies Products Corp Continental Connector Corp Mfg Co Inc
109. ower supply 4 21 INTEGRATOR 4 22 As the gate generator changes states onsignal from the trigger generator the negative gate voltage at V104B takes diodes V109A and V109B out of con duction This allows the timing capacitor C175 through C181 depending on sweep time set to charge in a negative direction since it is connected through the sweep time resistors to 100 volts The integrator V106A amplifies and inverts this negative going volt age at its grid pin 2 to produce a large positive going output at the plate This positive going voltage is fed back to V106A grid through cathode follower V106B and the timing capacitor and this feedback keeps the integrator input voltage almost constant Thus the voltage across the sweep timing resistor also remains nearly constant to produce a correspond ing nearly constant current The current charges the sweep capacitor at a linear rate to produce a linear sweep output The sweep output is routed through switch S202 to the horizontal amplifier and then to the CRT deflection plates 4 23 The slope of the sweep output waveforms is determined by the RC time constant of resistors R175 to R186 and capacitors C175 to C181 used on a selected SWEEP TIME range VERNIER control R179 provides a fine adjustment of sweep time by altering the DC voltage to which the timing resistor is returned Neon lamp V107 is used to reduce the average level of the sawtooth swing to a less positive value s
110. oy Dallas Texas 00334 Humidial Colton Calif 06090 Raychem Corp Redwood City Celif 13396 Telefunken GmbH Haoover Germany 00348 Microtron Co Inc Valley Stream N Y 06175 Bausch and Lomb Optical Co Rochester N Y 13835 Midlend Wright Div of Pacific Industries Inc 00373 Garlock Inc 06402 E T A Products Co of America Chicego Ili Kansas City Kensas Electronics Products Div Camden N J 06540 Amatom Electronic Hardware Co Inc 14099 Sem Tech Newbury Park Calif 20656 Aerovox Corp New Bedford Mass New Rochelle N Y 14193 Calif Resistor Corp Santa Monica Calif 30779 Amp Inc Harrisburg Pa 06555 Beede Electrical instrument Co Inc 14298 American Components Inc Conshohocken Pa 00781 Aircreft Radio Corp Boonton N J Penecook N H 14433 ITT Semiconductor A Div of Int Telephone 00815 Northern Engineering Laboratories Inc 06666 General Devices Co Inc Indianapolis Ind amp Telegraph Corp West Palm Beach Fle Burlington Wis 06754 Semcor Div Components Inc Phoenix Ariz 14493 Hewlett Packard Company Loveland Colo 00853 Sangamo Electric Co Pickens Div 06812 Torrington Mfg Co West Div 14655 Cornell Dublier Electric Corp Newark N J Pickens 5 6 Van Nuys Calif 14674 Corning Glass Works Coming N Y 00866 Goe Engineering Co Los Angeles Calif 06980 Varian Assoc Eimac Div San Carlos Calif 14752 Electro Cube Inc So Pasadena Calif 00891 Carl E Holmes Corp Los Angeles Celif 07088 Kelvin E
111. pid decrease in voltage at the grid of V103B the voltage here starts decaying at a rate determined by R148 and the valueof hold off capacitor used on a given sweep range The cathode of V103B follows this decay rate and V103A grid voltageis kept high enough for a sufficient timeto allow sweep circuit recovery When the hold off level from V103B decays enough a negative trigger at V103A grid can reach the lower hysteresis limit and begin a new sweep cycle Stability adjustment R151 sets the DC level just above lower hysteresis limit at which V103B cathode quits following the hold off decay voltage on the grid this circuit is changed in free run operation see Paragraph 4 26 An incoming trigger which reaches below this DC level to the lower hysteresis limit Starts the new sweep Note The hold off capacitor for agivensweeptime setting is the same capacitor which is used as the timing capacitor in another sweep range except that stray capacitance is used for hold off purposes in the three fastest Sweep speeds For example C176 is the hold off capacitor in 0 1 through 5 SECOND CM settings but then C176 becomes the timing capacitor in 10 20 and 50 MILLI SECONDS CM settings and C177 becomes the hold off capacitor 4 26 FREE RUN CIRCUIT OPERATION 4 27 When LEVEL control is set to FREE RUN the gate generator and other sweep circuits operate with out a trigger from V102 This is accomplished by allowing the hold off decay
112. quela 3 NEVTRAUZEN uy Piw Figure 6 16 Horizontal Attenuator and Amplifier Schematic 5 23 Section V Figures 5 11 and 6 18 Figure 5 18 Voltage Power Meaty Schematic Figure 5 37 High Voltage Power A301 Component Locate Mare i Low Voltage Poom Rap MI Compennni Section VI Model 130C Figure 6 1 780 6 A 2 ho Pareno Deseription 130C 2A Panel front 130C 2B Panel rear 5000 0743 Cover side 5060 0734 Casting frame side 130C 44A 1 Cover top 5060 0761 Cover bottom 5060 0767 Foot plastic 1490 0030 Stand tilt 5060 0763 Handle side 5060 0765 Retainer handle 5000 0052 Plate trim adhesive back 5060 0776 Kit rack mount 2 3 O DD 2 Ug mo Figure 6 1 Modular Cabinet Replaceable Parts 6 0 01879 1 Model 130C Section VI Paragraphs 6 1 to 6 7 SECTION VI REPLACEABLE PARTS 6 1 INTRODUCTION 6 2 This section contains information for ordering replaceable parts for the 130C Table 6 1 lists reference designators and abbreviations that are used in the Table 6 2 component descriptions Table 6 2 lists the parts in alpha numerical order of their ref erence designations and provides the following infor mation for each item a The hp part number b Total quantity TQ use
113. r to arrive at the gate gener ator starts a sweep in the usual way As the sweep Output voltage rises the voltage across DS101 de creases until the light goes out The positive going sweep voltage is also applied by voltage divider R143 and R144 to the base of Q101 bringing the transistor into conduction and eventually driving it into satura tion As in NORMAL operation the sweep voltage is fed back through the hold off circuit to switchthe gate generator back to its pre sweep condition V103A on V104B off With V104B cutoff the saturation current of Q101 flowing through R137 is still enough to keep SENSITIVITY SENSITIVITY lisca INPUT AMPLIFIER 9 1 I I 1 VIA 0 03 I I 1 1 1 1 1 1 1 1 1 1 1 1 1 DIFFERENTIAL FEEDBACK AMPLIFIER VIB 02 04 INPUT DIFFERENTIAL FEEDBACK Model 130C diodes V109A and V109B biased off Integrator V106A is thus allowed to continue integrating until it reaches saturation The sweep output waveform rounds and levels off remaining at this high positive level until the circuit is manually re armed Since this positive voltage is fed back through the hold off circuit to the input of the gate generator triggers generated by V102 are unable to overcome this voltage and operate the gate To re arm the circuit 5104 is switched back to NORMAL This cuts off Q101 which allows V109A and V109B to conduct and return the integrator to its pre sweep con
114. rallel with the vertical horizontal and trigger in puts on the front panel of the Oscilloscope Refer to 01879 1 Figure II 2 for the connector wiring schematics Mating plugs and cable clamps for the three pincon nectors are also supplied with this option Refer to Table II 1 for replaceable parts of this option The added vertical and horizontal input connectors cause some increase of input capacitance however this increase willnot causethe input capacitance to exceed 100 pf 103 REAR CONNECTOR TRIGGER INPUT REAR CONNECTOR HORIZONTAL INPUT INPUT REAR CONNECTOR VERTICAL 130C A 27 Figure II 2 Option 06 Schematic Diagram OPTION 13 This option consists of a special front panel for the Oscilloscope The specialpanel is a 6 31 32 in x 19 in x 3 16 in rack mount slabpanel without handles Installation of this special panel necessitates the re moval of some of the standardcomponents and the ad Sun of severalspecialcomponents as listedin Table II 1 II 1 Appendix II Model 130C Table II 1 Table II 1 Replaceable Parts for Options Ref Description TEN OPTION 05 120A 83C 120A 83C 1 120A 83A 120A 83B 120A 83G Graticule scribed Graticule unscribed Filter amber Filter blue Filter green 0170 0084 0693 4711 1450 0154 2100 1838 2140 0057 Knob black scale R fxd comp 470 ohms 10 2w Lampholder miniature R var comp 300 ohms 20 1w w
115. red on CRT spot will always travel across CRT near the horizontal center graticule line Horizontal amplifier is now DC balanced See note following step 8 this procedure Figure 3 3 DC BALANCE Procedure 01879 1 Model 130C Section III Figure 3 4 1B0C A 4 Connect vertical signal to input For differ ential input see Figure 3 7 Set SENSITIVITY for desired vertical deflection Set VERNIER to CAL for calibrated sensitivity Set SENSITIVITY to INTERNAL SWEEP XI Set TRIGGER SOURCE SLOPE to INT or INT To trigger on power line waveforms set TRIGGER SOURCE SLOPE to LINE or LINE Set LEVEL to AUTO Set NORMAL SINGLE to NORMAL Set SWEEP TIME for desired presentation of waveform Set VERNIER to CAL for calibrated sweep time Adjust LEVEL to trigger at a desired point on triggering waveform Figure 3 4 Internal Sweep with Internal Trigger 01879 1 3 7 Section III Figure 3 5 Connect vertical signal to input Set SENSITIVITY for desired vertical deflection Set VERNIER to CAL for calibrated sensitivity Set SENSITIVITY to INTERNAL SWEEP XI Set TRIGGER SOURCE SLOPE to EXT or EXT Set AC DC to either AC or DC for trigger signal above 20 cps set to DC for trigger signal from DC to 20 cps Connect trigger signal to input Set NORMAL SINGLE to NORMAL Adjust LEVEL to obtain a display on CRT Do not use AUTO for trigger below 50 cps Set SWEEP TIME for desired presentation of waveform
116. resent d Adjust R402 Calib for exactly 10 emdeflection 1 SECONDS CM 0 uSECONDS CM Solid weighted lines indicate signal paths Broken weighted lines indicate SWEEP STABILITY 2 feedback paths Set Model 130C as follows 71 MILLISECONDS CM 100 user R176 LEVEL just out of AUTO 1 MILLISECONDS CM 1 msec R177 0M ISECONDS CN 10 msec R za a Vertical Amplifier and Horizontal Amplifier 1 SECONDS CM 100 msec 5 87 COMPONENT LOCATION 5 88 Figures 5 1 and 5 2 indicate the location of most tubes assemblies and adjustments Compon 1 Follow steps 1 through 10 of Figure 3 3 b Sweep Generator imitally first rotate 161 clockwise trace appears then back 1 TRIGGER SOURCE SLOPE INT 2 HORIZONTAL SENSITIVITY xi 3 Monitor DC voltage at pin 2 of V101 WHT GRN VIO wire and adjust LEVEL control for 0 volts reading figures are included near the corresponding circuit 4 Note DC voltage reading typically about 55 Schematic diagram to help locate components where 5 Sweep Generator Waveforms see Figure 5 8 and schematic Silk screening i8 difficult to see Switch components Figure 5 11 Set R151 slightly for a voltage reading of 2 volts less negative than noted in step d 85 SWEEP LENGTH a Connect the Oscillator to the vertical input are identified tn
117. rnative is to clip the leads of a damaged part e Since the conductor part of the etched circuit board is a metal plated surface covered with solder use care to avoid overheating and lifting the conductor from the board A conductor may be cemented back in place with a quick drying acetate base cement use Sparingly having good insulating properties An other method for repair is to solder a section of good conducting wire along the damaged area f Clear the solder from the circuit board hole before inserting a new component lead Heat the Solder in the hole remove the iron and quickly insert a pointed non metallic object such as a toothpick g Shape the new component leads and clip to proper length Insert the leads in the holes and apply heat and solder preferably on the conductor side 5 55 Most of the wire leads to the etched circuit boards have edge on connectors When removing or replacing these connectors be sure they are properly aligned with the guide slot in theboard edge Applying force with the connector mis aligned will Spring the contacts and result in a faulty electrical connection 5 56 CATHODE RAY TUBE REPLACEMENT 5 57 To replace the cathode ray tube use the following procedure WARNING Serious injury may result if the cathode ray tube is dropped Handle the tube carefully a Remove the bezel b Loosen the clamp at the CRT socket c Remove the tube socket from the clamp It may be nece
118. s and make any listed change s in the manual Serial Prefix or Number Make Manual Changes Serial or Number Make Manual Changes ERRATA Table 6 2 0421 0441 0461 Change to hp Part No 1850 0422 O Ge pnp Mfr hp preferred replacement R15 R16 Change value to 900 k ohms Under Miscellaneous Add hp Part No 5050 0440 Cover CRT socket access Mfr hp Appendix tt Table H 1 Option 13 Delete Entry for 120B 37A Add hp Part No 130C 37A Bar panel mounting right Mfr hp Add hp Part No 130C 37B Bar panel mounting left Mfr hp Change hp Part No 120B 5B to 120B 5C CHANGE 1 Page 1 0 Table 1 1 Change Vertical and Horizontal Amplifiers Internal Calibrator specification to read as follows Line frequency square wave 5 cm 3 Automatically connected to CAL Change General Calibrator specification to read as follows Line frequency square wave 500 mv 2 available at front panel Page 3 3 Paragraph 3 17 step e Change SWEEP TIME setting to 10 MILLISECONDS CM Page 4 5 Paragraph 4 33 7th line from bottom Change 350 cps to line frequency Page 5 15 Paragraph 5 83 step b Change SWEEP TIME setting to 10 MILLISECONDS CM Table 6 2 C401 Delete A Add C402 hp Part No 0180 0376 C fxd ta 0 47 uF 10 35 vdcw Mfr hp Add CR401 hp Part No 1901 0040 CR si Mfr hp Add O401 hp Part No 1854 0215 O si npn Mfr hp R403 R404 Delete Add R409 hp Part No 0757 0449 R
119. s 30 1 4w var comp 2500 ohms 10 1 2w 0687 1011 0687 1011 0727 0374 0727 0374 0686 2025 fxd comp 100 ohms 10 1 2w fxd comp 100 ohms 10 1 2w fxd 33k ohms 1 1 2w fxd 33k ohms 1 1 2w fxd comp 2000 ohms 5 1 2w fxd metflm 17k ohms 5 3w fxd metflm 15k ohms 5 3w var comp 7500 ohms 20 1 2w fxd depc 1470 ohms 1 1 2w fxd depc 1470 ohms 1 1 2w 0767 0017 0767 0010 2100 0375 0727 0109 0727 0109 0687 8231 0687 5621 2100 0379 0687 8211 0687 1031 fxd comp 82k ohms 10 1 2w EB 8231 fxd comp 5600 ohms 10 1 2w EB 5621 var comp 10k ohms 30 1 4w hp fxd comp 820 ohms 10 1 2w EB 8211 fxd comp 10k ohms 10 1 2w EB 1031 0687 1011 0687 1231 fxd comp 100 ohms 10 1 2w EB 1011 fxd comp 12k ohms 10 1 2w EB 1231 R R R R R R R R R R R R R R R R R R R R R R R R R R R N ot assigned 0687 1051 fxd comp 1 megohm 10 1 2w EB 1051 0687 1041 0686 1055 0687 3341 0687 2251 2100 0189 fxd comp 100k ohms 10 1 2w EB 1041 fxd comp 1 megohm 5 1 2w EB 1055 fxd comp 330k ohms 10 1 2w EB 3341 fxd comp 2 2 megohms 10 1 2w EB 2251 var comp 1 megohm 30 1 4w 0687 4711 0687 4711 0687 1041 0690 3331 0687 2731 fxd comp 470 ohms 10 1 2w EB 4711 fxd comp 470 ohms 10 1 2w EB 4711 fxd comp 100k ohms 10 1 2w EB 1041 fxd comp 33k ohms 10 1w GB 3331 fxd comp 27k ohms 10 1 2w EB 2731 0687 1011 0687 2751 0687 6811 0687 27
120. s Inc Cranford N J 16179 Omni Spectra Inc Detroit Ill 02286 Cole Rubber and Plastics Inc Sunnyvale Calif 07910 Continental Device Corp Hawthorne Calif 16352 Computer Diode Corp Lodi N J 02660 Amphenol Borg Electronics Corp Chicago III 07933 Raytheon Mfg Co 16688 Ideal Prec Meter Co Inc 02735 Radio Corp of America Semiconductor Semiconductor Div Mountain View Calif De Jur Meter Div Brooklyn N Y and Materials Div Somerville N J 07966 Shockley Semi Conductor Laboratories 16758 Delco Radio Div of G M Corp Kokomo Inc 02771 Voceline Co of America Inc Palo Alto Calif 17109 Thermonetics Inc Canoga Park Calif Ben Old Saybrook Conn 07980 Hewlett Packard Co Boonton Redio Div 17474 Trenex Company Mountain View Calif 02777 Hopkins Engineering Co San Fernando Celif Rockawey N J 17675 Hamlin Metal Products Corp Akron Ohio 03508 G E Semiconductor Prod Dept Syracuse N Y 08145 U S Engineering Co Los Angeles Calif 17745 Angstrohm Prec Inc No Hollywood Celif 03705 Apex Mechine amp Tool Co Dayton Ohio 08289 Blinn Delbert Co Pomona Calif 18042 Power Design Pacific Inc Palo Alto Calif 03797 Eldema Corp Compton Calif 08358 Burgess Battery Co 18476 Ty Car Mfg Co Inc Holliston Mass 03877 Transitron Electric Corp Wekefield Mass Niagera Falls Ontario Canade 18486 TRW Elect Comp Div Des Plaines IIl 03888 Pyrofilm Resistor Co Inc Cedar Knolls N J 08664 Bristol Co
121. s direct or capacitive coupling of the input signal see Paragraph 3 31 Trigger Input Terminal Accepts external trigger signal Trigger Input AC DC Selects direct or capa citive coupling of external trigger signal al ways AC coupled when LEVEL set to AUTO NORMAL SINGLE Selects normal sweep single sweep operation see Paragraph 3 12 LEVEL Selects free running automatic trig gering or variable amplitude triggering see Paragraph 3 10 TRIGGER SOURCE SLOPE Selects source of sweep trigger signal and slope on which trigger occurs INT triggers with internal Model 130C vertical signal LINE triggers on power line waveform EXT triggers on signal at trigger input terminal ARMED Indicator glows when sweep is ready for trigger in SINGLE sweep operation SWEEP TIME Selects time unit per centi meter of sweep Calibrated sweep time when VERNIER is fully cw detented position VERNIER Variable portion reduces sweep time per centimeter for selected range Allows continuous adjustment between es extends slowest sweep speed to 12 5 sec cm Cali brated sweep when set to CAL Horizontal POSITION Moves trace horiz ontally Horizontal SENSITIVITY Sets the deflection sensitivity of the trace and selects internal sweep Calibrated SENSITIVITY when VER NIER is fully cw detented position VERNIER Variable portion reduces deflec tion sensitivity for range selected Allows conti
122. ssary to carefully loosen Socket from clamp with a narrow blade screwdriver d Slide the tube out of the instrument e Install the new CRT reversing previous steps Note over tightening the clamp at the CRT socket may damage the tube f Check alignment of trace with graticule If trace is misaligned bring into alignment with R329 TRACE ALIGN rear panel g Check Astigmatism ref Paragraph 5 68 h Check Intensity Limit ref Paragraph 5 69 i Check Vertical Gain ref Paragraph 5 75 j Check Horizontal Gain ref Paragraph 5 75 5 58 ADJUSTMENTS 5 59 The adjustment procedures are divided into three groups Group I adjustments include procedures of Paragraphs 5 64 through 5 69 these procedures Set the power supply outputs and optimize front panel 01879 3 Model 130C controls for CRT display Group II adjustments are in the procedures of Paragraphs 5 70 through 5 80 these procedures are for adjustments which are made the same way in both vertical and horizontal circuits Group III adjustments are in the procedures of Para graphs 5 81 through 5 86 these procedures adjust the calibrator output and the sweep generator circuit and depend on an accurate calibration of the vertical and horizontal circuits Refer to Figures 5 1 and 5 2 to locate adjustable components Always make the preliminary settings of Paragraph 5 62 before following any adjustment paragraph procedure 9 60 REQUIRED TEST EQUIPMENT 5 6
123. t No 5083 0353 5083 0342 5083 0333 5083 0323 V CRT P31 phosphor V CRT P11 phosphor V CRT P phosphor V CRT P2 phosphor Not assigned A091 A091 2140 0083 2140 0083 V glow lamp aged V glow lamp aged Not assigned V 5651A voltage reference 1940 0001 5651A KH4147 M PB 8120 0078 1200 0044 W ac power XQ 2 pin Not assigned XQ 2 pin 1200 0044 M7 PB Not assigned XQ 2 pin 1200 0044 Not assigned M7 PB 121 51 11 060 121 51 11 060 133 65 10 009 1200 0044 1200 0062 1200 0062 1200 0086 XQ 2 pin XV 9 pin miniature XV 9 pin miniature XV 5 pin nuvistor Not assigned 121 51 11 082 121 51 11 060 121 51 11 060 121 51 11 060 1200 0059 1200 0062 1200 0062 1200 0062 XV 9 pin miniature shield base XV 9 pin miniature XV 9 pin miniature XV 9 pin miniature Not assigned 1200 0062 121 51 11 060 XV 9 pin miniature Not assigned XV 9 pin miniature 1200 0062 121 51 11 060 Not assigned 121 51 11 060 121 51 11 060 133 65 10 009 1200 0062 1200 0062 1200 0086 XV 9 pin miniature XV 9 pin miniature XV 5 pin nuvistor Not assigned 121 51 11 060 121 51 11 060 1200 0062 1200 0062 XV 9 pin miniature XV 9 pin miniature No
124. t assigned XV CRT consists of Socket body Pin Cover Plate 9709 4 9553 9709 7 1200 0037 1200 0050 1200 0192 Not assigned XV 7 pin miniature 1200 0053 111 51 11 069 6 14 01879 4 Model 130C Section VI Table 6 2 Table 6 2 Replaceable Parts Cont d Ref De MISCELLANEOUS 120A 11A 1 Strap copper for hv transformer 120A 20A Bezel crt 130C 1A Deck main 130C 5A Rail center divider 130C 5B Bracket switch support 88888 130C 6A Shield switch sweep and horizontal ampl 130C 6B Shield hv compartment 130C 6C Cover top hv compartment 130C 6D Cover bottom hv compartment 130C 6E Cover power transistors 130C 6F Shield switch sync and sweep 130C 6G Shield amplifier circuit board 130 6 Shield intensity pot 130C 6J Shield calibrator jack 130C 6K Shield assembly crt 58888 88888 130C 16R Cable gate 130C 16S Cable main harness includes XV306 130C 61A Holder neon bulb armed EEE 0340 0086 Insulator binding post for J1 J2 and J201 J202 0340 0089 Insulator binding post J101 0340 0090 Insulator captive 2 hole for J101 J102 0340 0091 Insulator captive 3 hole for vert and horiz inputs 0370 0026 Knob black position 0370 0037 Knob black bar sensitivity time 0370 0062 Knob red vernier 0370 0084 Knob black focus intensity balance 0370 0113 Knob black bar trigger source 0370 011
125. the POSITION setting no DC voltage change occurs at the cathodes of V2 as VERNIER is moved Thus position of the trace is not affected by changes in the SENSITIVITY VERNIER 4 38 BEAM FINDER switch S4 inserts R85 in the cathode of V3 reducing the current available to the output stage This reduces the voltage swing of V2 and reduces the CRT deflection plate voltage swing which brings the trace on screen regardless of signal amplitude 4 39 HORIZONTAL AMPLIFIER 4 40 The horizontal amplifier circuit operation is identical to that of the vertical amplifier except for the internal sweep positions of the SENSITIVITY Switch and the POSITION control R221A B In the INTERNAL SWEEP positions X1 through X50 the sawtooth voltage output from the sweep generator is coupled into the amplifier input at V201A The sweep signal gain is then controlled by theinterstage attenu ator see Figure 5 16 and applied to the CRT deflec tion plates To allow viewing of any portion of an expanded waveform a greater range for POSITION control is obtained by varying the DC level at the amplifier input where the sweep is applied For in ternal sweep R221B is switched out of the circuit and replaced by two fixed resistors R273 and R274 VERNIER R264 is also shorted out leaving V202 cathodes tied together Resistor R221A and its voltage divider circuit becomes the POSITION control and changes the DC level at which the sweep wave form is applied to the
126. the horizontal compensation adjustment p Set SENSITIVITY to 5 VOLTS CM Adjust Square Wave Generator amplitude for about 8 cm deflection q Adjust C11 C215 20V Atten Comp for best Square wave Note that this adjustment is for the 5 10 and 20 volt ranges r Change Square Wave Generator signal lead to the center terminal of the input Connect a short lead between the left and right terminals lead still connected from Oscilloscope ground terminal to ground side of signal source S Adjust C12 C216 20V Atten Comp for best Square wave Note that this adjustment is for 5 10 and 20 volt ranges t Change SENSITIVITY to 2 VOLTS CM Adjust Square Wave Generator output for about 8 cm deflection u Adjust C18 C218 2V Atten Comp for best square wave v Use appropriate procedure following 1 If using an L C Meter for capacity adjustments disconnect the Square Wave Generator and jumper wires Refer to Table 5 9 and make L C Meter connections SENSITIVITY settings and adjustments as specified 2 If using the alternate method of Paragraph 5 80 retain the same instrument setup of step u in Paragraph 5 79 Change the Square Wave Gen erator frequency to 1 kc For the vertical adjustment change SWEEP TIME to 0 2 MILLISECONDS CM or for the horizontal adjustment change Oscillator frequency to 500 cps Refer to Table 5 9 and connect the Square wave through the Alignment Attenuator to the specified terminals unused
127. tion of the SINGLE NORMAL switch 3 3 Section II Paragraphs 3 26 to 3 32 3 26 DIFFERENTIAL INPUT OPERATION 3 27 Balanced inputs are provided on all SENSI TIVITY ranges of both horizontal and vertical deflec tion amplifiers which allows measurement of the difference between two signals This is called dif ferential input operation and in this mode the two signals are subtracted algebraically and the differ ence is displayed as a single trace This type of operation eliminates signals which are common to both inputs referred to as the common mode signal and displays signals peculiar to only one input Figure 3 7 provides a step by step procedure for differential operation of the Model 130C Common mode rejection expressed in decibels represents the ability of the amplifier to attenuate the common mode signal and this is summarized in Table 3 1 along withthe maxi mum allowable peak to peak common mode signal to maintain these rejection ratios Table 3 1 Common Mode Rejection SENSITIVITY 0 2 mV CM thru 4 volts 40 db 0 2 VOLTS CM 0 5 VOLTS CM 40 volts 30 db thru 2 VOLTS CM 5 VOLTS CM thru 400 volts 30 db 20 VOLTS CM Model 130C 3 28 X Y OPERATION 3 29 In the X Y mode of operationthe internal sweep is disabled and external signals are applied to both the horizontal and vertical amplifiers Figure 3 8 provides an operating procedure for obtaining Lissa jous patterns or X Y plots The X Y display
128. to 3 11 SECTION Ill OPERATION 3 1 INTRODUCTION 3 2 The Model 130C may be used in either of two basic modes of operation 1 external signal to vertical input with internal horizontal sweep or 2 external Signals into both horizontal and vertical inputs The deflection sensitivity and bandwidth of the two ampli fiers is indentical and the input to eachamplifier may be easily changed to allow either single ended inputs or balanced inputs A choice of either AC or DC coupling at the input and internally in the amplifier is provided for both horizontal and vertical circuits The internal horizontal sweep has 21 calibrated sweep times from 1 to 5 sec cm with a vernier for continuous coverage which can extend the slowest Sweep speed to 12 5 sec cm Each sweep time may be magnified by choosing either X2 X5 X10 X20 or X50 range The sweep can be triggered internally from the vertical deflection signal or the line fre quency external triggers can also be used either AC or DC coupled to the sweep circuit See Para graph 3 16 for a brief operational check 3 3 FRONT AND REAR PANEL FAMILIARIZATION 3 4 FRONT PANEL Figures 3 1 and 3 2 identify and briefly describe the Model 130C front panel con trols connectors etc To aid in proper operation Paragraphs 3 6 through 3 15 provide a more extensive description of some front panel controls Note that controls for vertical and horizontal inputs are identical in fu
129. tor FL filter Q transistor vacuum tube neon CP coupling J jack R 7 resistor bulb photocell etc CR diode K relay RT thermistor w cable DL delay line L inductor S switch socket DS device signaling lamp M meter T transformer Y crystal ABBREVIATIONS A amperes GE germanium N C normally closed RMO rack mount only A F C automatic frequency control GL glass NE neon RMS root mean square AMPL amplifier GRD ground ed NIPL nickel plate N O normally open S B slow blow B F O beat frequency oscillator H henries NPO negative positive zero SCR screw BE CU beryllium copper HEX 7 hexagonal zero temperature SE selenium BH binder head HG mercury coefficient SECT section s BP bandpass HR hour s NRFR not recommended for SEMICON semiconductor BRS brass field replacement SI silicon BWO 7 backward wave oscillator IF intermediate freq NSR not separately SIL silver IMPG impregnated replaceable SL slide CCW counter clockwise INCD incandescent SPL special CER ceramic INCL include s OBD order by description SST stainless steel CMO cabinet mount only INS insulation ed OH oval head SR split ring COEF coefficient INT internal Ox oxide STL steel COM common COMP composition K kilo 1000 P peak TA tantalum CONN connector PC printed circuit TD time delay CP Cadmium plate LIN linear taper PF picofarads TGL toggle C
130. tors of Q3 and Q4 The positive voltage supply with high value resistors compared to feedback resistance used for Vernier Bal mini mizes the effect of balance adjustments on gain Vernier Bal is adjusted to offset any unbalance at the output stage plates resulting from the change in re sistance between the cathodes of V2A and V2B when VERNIER is rotated out of CAL position DC BAL ANCE R49 and Coarse DC Bal R48 adjustments are used to equalize the voltage on either side of the feedback resistance When the voltages are balanced the feedback resistors have no DC flowing through them and thus changing their values has no effect on amplifier balance Variable resistor R59 sets Q3 Q4 collector voltages for anaverageof 15 volts ensuring linear operation of the output differential amplifier The AMPLIFIER AC DC switch allows capacitive coupling of the interstage attenuator onthe seven most sensitive ranges minimizing the effect of dc drift by preventing DC current flow in the feedback resistors The result is the same as ifthe amplifier is balanced Gain adjustment R69 functions in the same manner as VERNIER control R70 by inserting resistance which acts as degenerative feedback Thus the gain may be controlled in order to bring the sensitivity calibration into agreement with a voltage standardor to set inter mediate sensitivities The output of the differential feedback amplifier at Q3 and Q4 collectors drives the output differential amp
131. trical Spec Co Cievaland Ohio 11717 viis Electronic inc Buena Park Calif 37942 Mallory amp Co Inc Indianapolis Ind 05624 Barber Colman Rockford Ill 11870 Melabs Inc Palo Calif 39543 Mechanical Industries Prod Co Akron Ohio 05728 Tiffen Optical C US 12136 Philadelphia Handle Co Camden N J 40920 Miniature Precision Bearings Inc Keene N H Co 12697 Clerostat Mfg Co Dover N H Chi 1 Roslyn Heights Long Island N Y 1 mE 12859 Nippon Electric Co Ltd Tokyo Japan 43990 Norgren Co Englewood Colo 00015 42 Revised July 1966 6 16 From FSC Handbook Supplements H4 1 beted JULY 1965 H4 2 Dated NOV 1962 01879 5 Model 130C Section VI Table 6 3 Table 6 3 Code List of Manufacturers Cont d Code 44655 46384 47904 48620 49956 52090 52983 54294 55026 55933 55938 56137 56289 59446 59730 60741 61775 62119 63743 64959 65092 66295 66346 79276 70318 70485 70563 70903 70998 71002 71041 71218 71286 71313 71400 71436 11447 11450 11468 11471 11482 11590 71616 71700 71707 71744 71753 71785 71984 72136 12354 72619 12656 72699 12165 12825 72928 Monvfacturer Address Ihmite Co Skokie Penn Eng amp Mfg Corp Doylestown Pn Polaroid Corp Cnmbridge Mass Precision Thermometer amp Inst Co Southampton Pn Micrownve amp Power Tube Div Waltham Mnss Rownn C
132. type operation the sweep is triggered internally from the vertical signal or line frequency and the signal to be observed is appliedto the vertical input Figure 3 4 provides a step by step procedure With TRIGGER SOURCE SLOPE set to INT or the sweep is triggered when the vertical signal input causes a vertical deflection of 0 5 cm or more With TRIGGER SOURCE SLOPE set to LINE or the Sweep is triggered from the AC power line waveform Function of LEVEL control is described in Para graph 3 10 3 22 EXTERNALLY TRIGGERED SWEEP OPERATION 3 23 In this type operation the sweep is triggered from an externally applied signal and the signal to be observed is applied to the vertical input Figure 3 5 provides the step by step procedure With TRIGGER SOURCE SLOPE set to EXT or the horizontal sweep is triggered by a signal of 0 5V p p or more applied to the trigger input terminals Figure 3 5 explains use and specifications for AC or DC trigger input coupling if LEVEL is setto AUTO the external trigger signal is always AC coupled Function of LEVEL control is explained in Paragraph 3 10 3 24 SINGLE SWEEP OPERATION 3 25 A step by step procedure for obtaining single Sweep operation is contained in Figure 3 6 This method is useful for observing single shot phenomena or random events With single sweep operation the Sweep occurs just once and cannot be retriggereduntil manually rearmed See also Paragraph 3 12 for explana
133. ut AC DC 3 4 5 53 Repair and Replacement 5 10 3 33 Applying Input Signals 3 5 5 56 Cathode Ray Tube Replacement 5 10 5 58 Adjustments 5 10 PRINCIPLES OF OPERATION 4 1 5 60 Required Test Equipment 5 11 Fit 5 62 Preliminary Settings gt 5 11 4 4 Low Voltage Power Supply 4 1 y ng 5 64 Group Adjustments 5 11 4 6 100 Volt Supply 4 1 5 67 High Voltage Power Supply 5 11 4 8 100 and 250 Volt Supplies 4 1 5 68 Astigmatism 5 11 4 10 412 5 Volt Supply 4 1 5 69 Intensity Limit 5 11 4 12 High Voltage Power Supply 4 1 5 70 Group Adjustments 5 11 4 15 Sweep Generator 4 2 5 72 Vernier Balance 5 11 4 17 Trigger Generator 4 2 5 73 Coarse DC Balance 5 11 4 19 Gate Generator 4 3 5 74 Output Stage Current 5 11 4 21 Integrator 4 3 5 75 Mi 5 12 4 24 Sweep Termination andHold Off 4 3 2 5 76 Neutralization 5 12 4 26 Free Run Circuit Operation 4 3 4 28 5 77 Input Capacitance and Attenuator Single Sweep Circuit 4 4 Fr equency Compensation 5 12 4 30 Vertical Amplifier 4 4 5 81 Group HI Adjustments 5
134. ve Generator output for about 8 cm deflection 2 For horizontal adjustment only set both signal source amplitudes for about 8 centimeters deflection horizontally and vertically Adjust Oscillator frequency until two distinct square waves are displayed as in Figure 5 3 5 12 Model 130C f Alternately adjust C48 C240 and C49 C241 for best rise time with no overshoot Figure 5 3 illust rates the waveforms for the horizontal neutralization adjustment Note A step input signal with a risetime much faster than the Oscilloscope risetime such as the Model 211A signal may cause a noticeable preshoot on the trace This does not affect the accuracy of the adjustment and does not occur for signals within the Specified risetime of the Model 130C g Disconnect shorting link from center input terminal and connect Square Wave Generator be tween center and ground black terminals h Connect a short jumper wire from the left input terminal to the ground terminal i Note the square wave response A slight rounding on the leading edge is permissible If desired a compromise adjustment of C48 C240 and C49 C241 can be made with Square Wave Generator signal applied alternately to the left terminal with center terminal grounded and to the center terminal with left terminal grounded 5 77 INPUT CAPACITANCE AND ATTENUATOR FREQUENCY COMPENSATION 5 78 There are two methods for adjusting input capacitance One method requires
135. ver the entire range p Set external trigger input to AC Vary Oscillator frequency from 500 kc to 20 cps keeping amplitude constant a 0 5 p p Stable trig gering should occur over the entire range r Disconnect the Oscillator s Set TRIGGER SOURCE SLOPE LINE LEVEL AUTO t Observe a power line frequency waveform The display should be synchronized 5 18 TRIGGER POINT AND SLOPE a Apply a 100 cps signal from the Oscillator to both the vertical input and the external trigger input b Set Vertical SENSITIVITY 2 VOLTS CM TRIGGER SEGRE INT LEVEL gt AUTO SWEEP TIME 2 MILLISECONDS CM c Adjust Oscillator amplitude for 10 cm deflection d The sweep should trigger on the positive going part of the waveform e Check INT EXT and EXT positions The sweep should trigger on the proper slope for each position f Vary LEVEL throughout its range The starting point of the sweep should vary along all points on the 10 cm waveform 5 19 SWEEP CALIBRATION a Set Vertical SENSITIVITY INTERNAL SWEEP xi 2 VODIS CM TRIGGER SOURCE LOPE s iss LEVEL SWEEP TIME 1 uSECONDS CM SWEEP VERNIER CAL b Apply the output of the Time Mark Generator to the vertical input Set the output of the Time Mark Generator to 1 microsecond c Adjust horizontal POSITION so that the first marker coincides with the left graticule edge d The 11th marker
136. vides the voltages necessary for the operation of the cathode ray tube Refer to Figure 4 3 for the following ex planation Tube V301 is operating in a Hartley oscil lator circuit oscillating at approximately 70 kc The oscillator voltage is applied to the primary of high voltage transformer T301 The primary voltage is stepped up by the transformer and rectified by V304 and V305 The outputofthe rectifiers is filtered and applied to the CRT cathode and grid The CRT cathode voltage is compared to the 250V supply by voltage dividers R311 through R318 and applied to Control Amplifier V302 Since the cathode of V302 is AMPLIFIER 0423 RECTIFIER FILTER DRIVER 0422 SERIES REGULATOR 0421 DRIVER 0442 SERIES REGULATOR 0441 AMPLIFIER 0443 RECTIFIER FILTER SERIES REGULATOR 0461 DRIVER 0462 DIFFERENTIAL AMPLIFIER 0463 0464 RECTIFIER FILTER REFERENCE 461 1 0 1 Figure 4 2 LV Power Supply Block Diagram 4 1 Section IV Paragraphs 4 14 to 4 18 250V 250V OSCILLATOR v301 d NG GATE FROM WEEP GENERATOR Figure 4 3 H V Power Supply Block Diagram 5101 INTERNAL TRIGGER r TRIGGER SOURCE SLOPE VERTAMP gt O vg TRIGGER INPUT HOLD OFF CAPACITOR Model 130C tied to a regulated voltage 100 volts any variation in high voltage is seen by V302 as a change in grid cath
137. vox Corp Burbank Calif C P Clare amp Co Chicago IH Centrninb Div of Globe Union Inc Milwaukee Wis Commercial Plastics Co Chiengo Ill Cornish Wire Co The New York N Y Coto Coil Co Inc Providence Chicngo Mininture Lamp Works Chicngo Ill 0 Smith Corp Crowley Div West Orange N J Cinch Mfg Co Hownrd B Jones Div Cbiengo 111 Dow Corning Corp Midinnd Mich Electro Motive Mfg Co Inc Willimantic Conn John E Fast Co Div Victoreen Instr Co Chicngo Dialight Corp Brooklyn N Y Indinnn Genernl Corp Electronics Div Kensby N J General Instrument Corp Div Newark N J Drake Mfg Co Chicngo I Hugh Eby Inc Philndelphin Pa Gudeman Co Chicago Ill 00015 42 Revised July 1966 01879 4 Code No 72964 72982 73061 73076 13138 73293 73445 73506 13559 73682 13734 13143 13793 73846 13899 73905 74276 74455 74861 74868 74970 75042 15378 15382 15818 15915 76005 76210 76487 76493 76530 16545 76703 76854 77068 11015 11221 11052 77342 77630 77638 11164 11969 18189 18283 18290 18452 18471 18488 18493 18553 18190 18947 19136 19142 19251 19121 19963 Monvfacturer Robert Hadley Co Erie Technologient Products Inc Hansen Mfg Co Inc H M Harper Address Los Angeles Calif Erie Pa Princeton Ind Chicngo Ill Helipot Div of Beckman Inst Inc Full

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