Tektronix 511 Instruction Manual Download

Page: 72 / 113

Fig. 5-27

SN 845 and up

TEKTRONIX , INC.

12-28-50

Summary of Contents for 511

Page 1: ......

Page 2: ...CATHODE RAY OSCILLOSCOPE INSTRUCTION MANUAL p j Manufacturers of Cathode Ray and Video Test Instruments SUNSET HIGHW AY AND BARNES ROAD P O B O X 831 PORTLAND 7 OREGON U S A PHONE CYpress 2 2611 CABLES TEKTRONIX ...

Page 3: ...ts Trigger phase splitter Trigger Amplifier Trigger coupling diode Multivibrator Unblanking circuit Gate output genera tor Sweep generator Sweep output cathode follower Sweep magnifier Sweep amplifier Vertical Deflection System Probe Input attenuator Vertical amplifier Calibrator Circuits Power Supply MAINTENANCE SECTION 4 Replacement of Components Removal of Case Cleaning Inspection Trouble Analy...

Page 4: ......

Page 5: ......

Page 6: ...n instru ment may differ considerably from those indicated in this manual for its serial number The user is urged therefore to enter whatever changes may be necessary to bring this manual into agreement with the present circuitry of his oscilloscope When ordering parts always include the fol lowing information 1 Instrument Type 511 511A or 511AD 2 Instrument Serial Number as SN 9999 3 Part Circuit...

Page 7: ...eps Below S N 720 a 3v bat tery and key connected in series is suitable Switch permits signal input connector onpanel to be connected to deflection plates directly via capacitor RC l sec via 1amplifier stage or via 2 amplifier stages Input Attenuator Frequency compensated RC type withattenua tion ratios of 2 4 and8 S N101 454 ATTEN 5X binding post allows additional attenuation Vertical Deflection ...

Page 8: ...ched aluminum withblack letters Cabinet gray wrinkle FUNCTIONS OF CONTROLS AND BINDING POSTS A brief explanation of the function of each control and binding post is given below For a more detailed explanation consult Section 3 Circuit Description PANEL MARKINGS EXPLANATION INPUT CHAN SEL Gang switch permitting the input signal to be connected to the vertical deflection plates either directly via a...

Page 9: ...urned to OUT sweep magnifier is disconnected from the circuit SWEEP SPEED MULT Decade control plus vernier control setting sweep speed anddura tion within range indicated by SWEEP RANGE A single control S N 101 1405 EXT SWEEP ATTEN Potentiometer control ling the fraction of the voltage applied to EXT SWEEP INPUT binding post which will reach the grid of the sweep amplifiers when the SWEEP RANGE sw...

Page 10: ...bserving pulses Dial readings EXT CAL SIGNAL X l XI X 10 S N 101 2405 SWEEP SPEED MULT was a single dial from S N 101 1405 TRIGGER AMPL Potentiometer controlling the bias applied to the trigger amplifier tube V2 and thereby determining the amplitude of trigger signals applied to the multivibrator TRIGGER INPUT Binding post connecting ex ternal trigger sources to EXT and EXT SIGNAL DEFL and arrows ...

Page 11: ...onents are well supported and the adjust ments very stable in setting to allow for portable operation the Type 511A should not be subjected to excessive vibration or rough handling FIRST TIME OPERATION To place the Type 511A in operation for the first time the following procedure is suggested 1 Connect to a source of 50 60 cycle 105 125 v power 2 Set controls as indicated below INPUT CHAN SEL 1 ST...

Page 12: ...ivibrator pulse length At the end of its sweep it returns to the left side again to await another trigger It is this variable waiting period which makes the synchronization so easy since the sweep time is now independent of the signal period The triggered sweep makes it possible to viewpulses such as used in radar and television where the length of the pulse is very short compared to the space bet...

Page 13: ...eep is the conventional saw tooth variety as used in most oscilloscopes Single Sweep The triggered sweep circuit used in the Type 511 inherently provides for single sweep opera tion The beam is blanked out until the trigger simultaneously turns it on and starts the sweep For single sweep operation amechanical contact or hand key can be connected between the TRIG GER INPUT binding post and ground I...

Page 14: ...g on the circuit under test is desired the Input Probe should be used CAUTION THE PEAK POTENTIAL AP PLIED TO THE PROBE SHOULD NOT EXCEED 600 VOLTS Since the probe introduces an attenuation of 10X it will be advantageous to employ a com mon shielded lead no attenuation to prevent pickup of stray fields when dealing with very low signals if the additional circuit loading is permissible A ground lead...

Page 15: ... plate and the one marked X2 is the right plate Deflection sensi tivity is approximately 27v DC per cm S N 5100 and up 13 v DC per cm on the vertical plates and 32 v per cm S N5100 and up 18 v per cm on the horizontal If positioning control is desired the jumpers should be replaced with 1 megohm resistors and a series coupling capacitor employed Un less balanced input is desired the unused de flec...

Page 16: ...btained The sensitivity is now 2 volts per division and amplitudes may be read directly The range may be extended if desired by the INPUT ATTENUATOR and probe which has an attenuation of 10X For instruments S N101 454 the range may be extended by the ATTEN 5X binding post CAUTION THE DEFLECTION POLAR ITY SWITCH MUST BE IN THE NORMAL CENTER POSITION DURING CALIBRA TION TO PREVENT ERROR INTHE INDI C...

Page 17: ...obtained on both horizontal and verti cal lines simultaneously In order to transmit unblanking pulses to the grid of the cathode ray tube the 1 pf 2000 v capacitor C58 is used A similar capacitor C59 is used to transmit external impulses such as timing markers from the CRT CATHODE binding post The twin potentiometers R131A and R131B provide a means of varying the average poten tials of the vertica...

Page 18: ...d of V4 causing it to conduct This action continues until V4 is conducting and V5 cut off This condition is maintained until the capacitor C7 discharges raising the grid voltage of V5 to such a point that it starts to conduct This makes the plate of V5 fall carrying with it the grid of V4 and starting a regenerative cycle which ends with V5 conducting and V4 cut off the condition which existed bef...

Page 19: ...st Gate Output Generator V8 serves to isolate the gate output binding posts from the multivibrator It receives aposi tive pulse on its grid of the same duration as the sweep from the plate of V5 via the voltage divider R32 and R33 CIO maintains the steep sides of the pulse Since the plate and cathode load resistors are equal pulses of equal size but opposite polarity appear at the plate and cathod...

Page 20: ...ents S N101 1405 the plate rises in exponential fashion at a rate depending on R20B R39 and C15 When the multivibrator pulse ends V9 conducts again thus discharging C15 Since C15 is charged to only about 5 of the supply voltage the rate of rise is very nearly linear Five values of C15 as determined by the SWEEP RANGE switch in combination with the variable resistor R20B provide a continuous variat...

Page 21: ... resulting in balanced operation and equal upward and downward undistorted deflection of the trace In the upward position the bias of V19 is de creased resulting in increased output of V19 and decreased output of VI8 thus permitting greater undistorted upward deflection These conditions are reversed when the deflection polarity switch is in the downward position The 6AG7 cathode follower V17 serve...

Page 22: ...quency compensation is provided to correct for the effect of the coupling capacitors The resistors R110 and R125 along with the capacitors C51A and C51B provide a rising low frequency char acteristic together with a phase correction To take up variations in the component values the grid resistor R116 is made adjustable The procedure for this adjustment is given in Section 5 The inductances L7 L8 L...

Page 23: ...cle power The principal power supply provides 225 v at approximately 250 ma Two 5V4Gtubes are used as rectifiers The comparatively low volt age drop of these tubes reduces the no load volt age to which the input capacitors may be sub jected A large input capacitor 80 jixf reduces the ripple to about 12volts The electronic regu lator reduces this to less than 1 volts This circuit consists of V27 V2...

Page 24: ...ng on T2 supplies a negative voltage of approxi mately 300 volts The plates of V5 are tied to gether since it is used as a half wave rectifier C72 is used as input condenser To provide regulation and additional filtering the gas filled voltage regulator tube V26 is used Arelatively constant voltage of 150 v is maintained across V26 The 470 ohm resistor in series with the output of V26 eliminates a...

Page 25: ...to furnish approximately 1600 v across C68 R152 and C69 provide additional filtering and reduce the voltage to about 1500v This supply also furnishes the bias current for the sweep coupling neons via R153 and R154 To obtain a positive voltage for the intensifier anode on the 5CP1A V22 is used C67 provides adequate filtering since the current drain is very small R150 and R151 serve as a bleeder to ...

Page 26: ......

Page 27: ...been prepared to cover TEKTRONIX Type 511 Oscilloscopes of all serial number ranges Diagrams parts lists and text have been expanded to incorporate all instrument modifications adopted during the course of manufacture The serial ranges of instruments to which modifications were applied before shipping from the factory have been noted wherever necessary However because many instruments have been mo...

Page 28: ...not indicate replacement Com position resistors should be checked for serious discoloration which would indicate excessive dissipation and therefore faulty operation A moderate amount of discoloration is normal 3 Connections Loose screws or nuts should be tightened This is especially important when the screw serves as an electrical connection Corrosion of the chassis and electronic com ponents is ...

Page 29: ...nduct would indicate trouble in the DC supplies or the circuits fed by them This condition may be isolated by removing the high voltage rectifier tubes V21 V22 V23 and V24 including V25 S N101 454 and replacing first V25 S N101 454 V24 then V22 and V23 and finally V21 al lowing several minutes operation between each replacement After the faulty DC supply is lo cated disconnect it at thepower suppl...

Page 30: ...he intro duction of a 60 cycle signal due to a defective tube This trouble may be located by tube sub stitution Excessive power supply ripple may also cause jitter 2 HIGH VOLTAGE SUPPLY S N455 and up If normal 1500 and 1500 volt accelerating potentials are not restored by replacement of V13 V32 V33 and the HIGH VOLTAGE ADJ control the CRT heater pin plugs and accelerat ing anode clip should be rem...

Page 31: ...ents S N1406 and up but inaccurate at other settings suspect a change in resistance of R20D R20D1 9 or a short or ground at some point along the step control In the event R20D must be replaced it should be ordered from the factory and will be supplied with an individually calibrated dial 3 Multivibrator It is important that the multi vibrator output be of normal amplitude and free from frequency m...

Page 32: ...5 R110 R ill R112 R125 R126 and R127 These are V18 and V19 plate load resistors If replacement is necessary the values must be selected so that the total resistance of each series of four is between 1125to 1250ohms After replacement it is desirable to check the high frequency re sponse of the amplifier and if necessary read just as explained under Adjustment of Vertical Amplifier H F Response 4 R9...

Page 33: ... TRIGGER AMPL Counter clockwise TRIGGER SEL INT DEFLECTION POLARITY Centered Tube VI V2 V3 V4 AVERAGE TUBE SOCKET VOLTAGES Measured at 117 Volt Line DC Voltmeter Sensitivity 20 000 Ohms Per Volt Pin To Voltage 1 2 Gnd 0 3 5 Gnd 15 5 4 Gnd 7 50 volt scale 6 Gnd 187 7 Gnd 6 5AC 8 Gnd 177 1 2 Gnd 0 3 5 Gnd 10 TRIGGER AMPL clockwise 3 5 Gnd 0 TRIGGER AMPL counterclockwise 4 Gnd 0 TRIGGER AMPL clockwis...

Page 34: ...25 6 Gnd 65 SWEEP STABILITY clockwise 6 Gnd 2 7 SWEEP STABILITY counterclockwise 7 Gnd 70 SWEEP STABILITY clockwise 7 Gnd 39 SWEEP STABILITY counterclockwise S N2869 and up 1 V7 1 17 Gnd 220 SWEEP STABILITY clockwise A B 1 7 Gnd 75 SWEEP STABILITY counterclockwise 2 Gnd 15 SWEEP STABILITY clockwise 50 volt scale 2 Gnd 0 SWEEP STABILITY counterclockwise 2 5 volt scale 3 4 5 Gnd 0 6 Gnd 450 8 Gnd 18...

Page 35: ...WEEP STABILTY counterclockwise SWEEP STABILITY clockwise SWEEP STABILITY counterclockwise SWEEP STABILITY clockwise SWEEP STABILITY counterclockwise SWEEP STABILITY clockwise SWEEP STABILITY counterclockwise MAGNIFIER POSITION out MAGNIFIER POSITION clockwise MAGNIFIER POSITION out MAGNIFIER POSITION clockwise MAGNIFIER POSITION out MAGNIFIER POSITION clockwise MAGNIFIER POSITION out MAGNIFIER POS...

Page 36: ...FLECTION POLARITY up and center 1 5 Gnd 29 DEFLECTION POLARITY down 2 Gnd 6 5AC 3 Gnd 0 4 Gnd 13 to 23 depending on setting of R116 50 volt scale 6 Gnd 160 DEFLECTION POLARITY up 6 Gnd 195 DEFLECTION POLARITY center 6 Gnd 165 DEFLECTION POLARITY down 7 Gnd 0 8 Gnd 190 DEFLECTION POLARITY up 8 Gnd 150 DEFLECTION POLARITY center 8 Gnd 110 DEFLECTION POLARITY down V19 1 5 Gnd 32 DEFLECTION POLARITY u...

Page 37: ...LITY counterclockwise 8 Gnd 0 or 40v 9 Gnd 140 ASTIGMATISM clockwise 9 Gnd 225 ASTIGMATISM counterclockwise 10 Gnd 0 or 40v SWEEP STABILITY counterclockwise 1 1 Gnd 0 or 40v 1 T1 term 8 260AC 2 3 7r Gnd 680 4 V21 pin 3 6 5AC 6 Tl term 8 260AC 2 V22 pin 8 5 2AC 4 6 Gnd 280AC 8 Gnd 325 2 V23 pin8 5 2AC 4S 6 Gnd 280AC 8 Gnd 325 1 6 Gnd 335 3 V24 pin4 6 5AC 4 7 Gnd 280 AC 1 450 18 2 3 Gnd 450 4 V25 te...

Page 38: ... Pin 7 1 25AC 5 Gnd 1600 V33 1 2 Pin7 1 25AC 50 volt scale Nominal Measured with thermocouple meter POINT TO POINT TUBE SOCKET CONTINUITY Tubes in Sockets Beginning with S N 845 and up Readings are approxi mately the same for instruments S N 101 845 NOTE Readings less than 1 ohm are listed 0 Tube Pin N o To Resistance VI 1 Gnd 0 2 Gnd 0 3 Gnd 1830 S 2 4 Gnd 470 k 5 Gnd 1830 a 6 225 4 7 k 7 Gnd 0 8...

Page 39: ...200 k 4 Gnd 2 2 meg 4 Gnd 2 2 meg 5 Gnd 0 6 Gnd 10 k 6 225 12 k 7 Gnd 0 8 225 4 5 k 8 V4pin 4 80 k S N845 2868 V6 1 Gnd 35 meg 1 VI1pin 6 470 a 2 140 85 k 2 V5pin 8 78 k 3 Gnd 0 4 Gnd 0 5 Gnd 14 k 5 6 225 20 k 7 Gnd 0 TRIGGER AMPL clockwise TRIGGER AMPL counterclockwise SWEEP STABILITY clockwise SWEEP STABILITY clockwise SWEEP SPEED MULT clockwise S N845 1405 SWEEP SPEED MULT 1 0 S N 1406 and up S...

Page 40: ...k 2 225 70 k 3 4 5 Gnd 0 6 450 0 8 Gnd 47 k V8 1 225 10 k 2 3 Gnd 0 4 Gnd 0 5 6 Gnd 250 k 7 Gnd 10 k V9 1 Gnd 0 2 Gnd 0 3 Gnd 0 4 140 65 k 4 225 70 k 5 Gnd 0 6 225 20 k 7 Gnd 0 8 Gnd infinite V10 1 2 3 Gnd 0 4 Gnd 0 5 225 0 6 V9 pin 8 0 7 Gnd 10 k V ll 1 225 10 k 2 225 14 7 k 3 Gnd 0 4 Gnd 0 5 Gnd 8 2 k 6 Gnd 35 meg SWEEP MAGNIFIER POSITION out P A G E 4 1 4 T Y P E 5 1 1 M A I N T E N A N C E ...

Page 41: ... 2 meg V9 pin 8 2 2 meg Gnd 0 Gnd 1 meg Gnd 0 225 10 k 225 3 2 k 450 0 T1 term 16 1 1 meg Gnd 20 55 k Gnd 10 k Gnd 0 Gnd 22 k Gnd 0 Gnd 2 k Gnd 0 Gnd 1 meg 225 0 Gnd 0 225 1 5 k HOR POSITION clockwise HOR POSITION counterclockwise depending on setting of R42 with SWEEP RANGE set at 1microsec SWEEP SPEED MULT clockwise S N845 1405 SWEEP SPEED MULT 1 0 S N1406 and up SWEEP SPEED MULT counterclockwis...

Page 42: ...Y control counterclockwise 5 V20 pin 1 3 5 meg FOCUS control clockwise 5 V20 pin 1 1 9 meg FOCUS control counterclockwise 7 Y2 access 0 panel 8 Y1 access 0 panel 9 140 0 ASTIGMATISM control clockwise 9 225 0 ASTIGMATISM control counterclockwise 10 X2 access 0 panel 1 1 XI access 0 panel 14 V20 pin 1 2 Q V21 1 T1 term 7 0 2 3 7 T1 term 1 1 0 4 T1 term 1 0 0 6 T1 term 9 0 V22 2 T1 term 1 3 0 4 6 T1 ...

Page 43: ... 74 k 3 Gnd 0 4 Gnd 0 5 V27 pin 4 0 6 225 47 k V29 1 V28 pin 2 0 4 Gnd 0 V30 1 5 Gnd 0 2 140 470 a V31 1 Gnd 100 k 2 Gnd 100 Q 3 Gnd 0 4 Gnd 0 5 225 160 2 6 225 15 k 6 225 10k to V32 1 3 4 5 6 7 8 Gnd 50 meg 2 V32 pin 1 1 a Cap V33 pin 3 0 V33 1 3 4 5 6 7 8 Gnd 1 3 k 2 V33 pin 1 1 a Cap Gnd 9 meg with R159 set at midpoint S N845 2699 10k to 20k depending on setting of R165 2 S N2700 and up T Y P E...

Page 44: ...raphs are provided to facilitate servicing of the Type 511A and will prove especially useful if another oscilloscope is available to observe the waveforms of the circuits being tested Amplitudes are measured peak to peak CAUTION These waveforms and ampli tudes represent average values selected from a number of instruments Considerable normal variation in individual oscilloscopes may be expected du...

Page 45: ...deflection A M step has been intro duced for comparison between the up and center positions Fig 4 2 Same pulse with DEFLECTION PO LARITY switch in center position Note that position of the step is un changed indicating good linearity for almost 3 cm of deflection but severe distortion between 3 and 4 cm Fig 4 3 Sawtooth pulse of opposite polarity Fig 4 4 Same pulse with DEFLECTION PO with DEFLECTI...

Page 46: ... output at V22 cathode and 450 volt rectifier output at V21 cathode Am plitude 15 volts Fig 4 8 Waveform at V31 plate Amplitude 350 volts SWEEP AND TRIGGER CIRCUIT WAVEFORMS Fig 4 9 Multivibrator waveform at V4 grid with controls set for 10 p sec recur rent sweep Amplitude 70 volts Fig 4 10 Multivibrator waveform at V4 plate controls set for 10 psec recurrent sweep Amplitude 120 volts P A G E 4 20...

Page 47: ...sweep Amplitude 45 volts Fig 4 14 Waveform at GATE controls set for 1000 psec recurrent sweep Amplitude 45 volts Fig 4 15 GATE controls set for 10 psec recurrent sweep Amplitude 45volts Fig 4 17 Unblanking pulse at V7cathode 1000 jisec recurrent sweep Amplitude 70 volts Fig 4 16 GATE controls set for 10 jisec recurrent sweep Amplitude 45volts Fig 4 18 Unblanking pulse at V7 cathode 1 0 jisec recur...

Page 48: ...itude 35volts This waveform also appears at the SWEEP OUTPUT binding post at an amplitude of 25 volts Fig 4 23 Same as Fig 4 21 except with adif ferent setting of SWEEP MAGNIFIER POSITION control Amplitude 30 volts Fig 4 22 Magnified sweep waveform at V ll plate showing the 10psec recurrent sweep of Fig 4 20 magnified 5X Amplitude 25 volts Fig 4 24 Amplified sweep sawtooth at XI de flection plate ...

Page 49: ...litude 5 volt Fig 4 28 The same pulse amplified at V2 plate Amplitude 5 volts VIDEO AMPLIFIER WAVEFORMS These photographs should be used in conjunction with the Adjustment section of this manual during adjustment of the video amplifier Fig 4 29 Normal response to a 50 cycle square wave Fig 4 30 Response to 50 cycle square wave when low frequency compensation is excessive indicating need for ad jus...

Page 50: ...ve showing overshoot due to excessive high frequency compensation Re adjustment is indicated Fig 4 34 Response to a 1 megacycle square wave showing the effect of insuf ficient high frequency compensation _ k k_ V v r r r r r r r Fig 4 35 Normal response to 1 kilocycle square wave Fig 4 36 Response to 1 kilocycle square wave with the input attenuator or probe over compensated P A G E 4 2 4 T Y P E ...

Page 51: ... at pins 2 6 and 7 of Calibrator Limiter VI6 1 Amplitude approximately 300 volts depending upon line voltage S N 2406 and up Fig 4 39 Positively and negatively clipped sine wave atpin 3of Calibrator Lim iter V16 1 Amplitude 100 volts as set by potentiometer R75 4 CAL ADJ S N2406 and up T Y P E 5 1 1 M A I N T E N A N C E P A G E 4 2 5 ...

Page 52: ......

Page 53: ...for accuracy and reset if neces sary ADJUSTMENT OF SWEEP SPEED CALIBRA TION If the Cathode Ray Tube is replaced or if the Sweep Amplifier tubes VI3 and VI4 change their characteristics the indicated sweep speeds may be in error This may be corrected by adjustment of the potentiometer on the chassis marked SWEEP SPEED ADJ R42 for all ranges except the 1 to 10 microsecbnd range which is corrected by...

Page 54: ... on input chan sel 7 S N455 and up Move square wave signal from SIGNAL INPUT to the probe apply a 5 v signal set INPUT ATTEN to XI and adjust the probe compensating capacitor 7 S N101 454 Move square signal from SIGNAL INPUT TO ATTEN 5X apply a 2 5 v signal set INPUT ATTEN to XI and adjust C30 between Input and Atten 5Xbind ing posts 8 Move INPUT ATTEN to X2 and adjust C38 left front on attenuator...

Page 55: ...rs provide a suitable signal source for this adjustment NOTE The calibrating waveform may be used in making the L F adjustments when a suitable square wave generator is not available ADJUSTMENT OF CALIBRATOR VOLTAGE S N2406 and up In order that the clipped sine wave calibrat ing voltage as indicated upon the front panel be accurate itisnecessary that the CAL VOLT AGE pointer knob be set mechanical...

Page 56: ...photographs cover instrument S N 845 and up the P510 probe and the P510Aprobe Instruments S N 101 845 are similar in appearance and these photographs will serve as a useful maintenance aid Fig 5 4 P510 Input Probe disassembled ...

Page 57: ...INPUT 10 MEG SHUNTED BY W HEN CABLE 15 TERM INA TED W ITH A O jjljiP Cp 3 12 tju F CER VAR EOOV Rp 9 MEG 1W FIXED P REC l 7o p B 4 1 IB 5 5 C A B L E T EK T R O N IX TYPE P5I0A PROBE ...

Page 58: ...Fig 5 6 Interior view right front side S N 845 1405 TYPE 511 A 511 AD SECTION 4 PAGE 22 ...

Page 59: ...NOTE Picture is applicable to S N1406 and up Changes and additions made after S N 1406 are indicated by boxed cir cuit numbers See parts list for effective serial numbers ...

Page 60: ......

Page 61: ......

Page 62: ......

Page 63: ......

Page 64: ...E Picture is applicable to S N1454 and above Changes and additions made after S N1454 are indicated by boxed cir cuit numbers See parts list for effective serial numbers Fig 5 12 Sweep chassis bottom view ...

Page 65: ...TE Picture is applicable to S N 1454 and above Changes and additions made after S N1454 are indicated by boxed cir cuit numbers See parts list for effective serial numbers Fig 5 13 Sweep Chassisf top view ...

Page 66: ...Fig 5 14 Video Amplifier top S N845 1459 Fig 5 15 Video Amplifier bottom S N845 1459 ...

Page 67: ... N1460 and db above Changes and additions made after S N f 1460 are indicated by boxed circuit numbers See parts list for effective serial num be s 7 R75 4 o v c V V v 7 7 W Fig 5 16 Video Amplifier top Fig 5 17 Video Amplifier bottom ...

Page 68: ...Fig 5 18 Power Supply bottom view S N 845 1629 Fig 5 19 P ow er Supply top view S N 845 1629 ...

Page 69: ...NOTE Picture is applicable to S N1630 and above Changes and additions made after S N1630 are indicated by boxed circuit numbers See parts list for effective serial numbers ...

Page 70: ...TOP VIEW R85 R83 R80 BOTTOM VIEW Fig 5 22 Vertical Attenuator top Fig 5 23 Vertical Attenuator bottom S N845 and up S N845 and U P Fig 5 24 Deflection Polarity Switch and Terminal Board S N845 and up ...

Page 71: ...Fig 5 25 Delay Network left view S N845 and up Fig 5 26 Delay Network right view S N845 and up L24 ...

Page 72: ...DEGREES OF PHASE SHIFT Fig 5 27 SN 845 and up TEKTRONIX INC 12 28 50 ...

Page 73: ... These parts may be re placed by purchasing replacements locally matching physical dimensions and electrical characteristics A BBREVIA TION S Cer Ceramic m milli or 10 3 Comp Composition Q ohm EMC Electrolytic metal cased PBT Paper Bathtub f Farad PMC Paper metal cased GMV Guaranteed minimum value Poly Polystyrene h Henry Prec Precision k Kilohm or 103 ohms PT Paper Tubular M cer Mica or Ceramic V...

Page 74: ...ed 400 v C7D 101 1682 2500 jL tjL tf Fixed Mica Selected 400 v 1683 3550X 2200 jL tjL tf Fixed Mica Selected 400 v C7D 1 X3551 and up 0015 juf Fixed MT 2 20 400 v 285 504 C7E 101 1682 025 juf Fixed PT 5 400 v 1683 3550X 022 juf Fixed PT 5 400 v C7E 1 X3551 and up 015 juf Fixed MT 2 20 500 v 285 512 C7F X3551 and up 15 jL tf Fixed MT 2 20 400 v 285 532 C8A B 101 and up 2x20jL tf Fixed EMC 20 50 450...

Page 75: ...ixed Mica io 400 v 283 505 1775 2868X 470 ppf Fixed Cer 20 400 v Use 283 522 C17 X581 1496 1 pf Fixed MT 10 600 v 285 528 1497 and up 1 pf Fixed MT io 400 v 285 526 C18 101 1774 100 ppf Fixed Mica 10 400 v 283 505 1775 2868X 470 ppf Fixed Cer 20 400 v Use 283 522 C19A B 101 454 3x l pf Fixed PBT 20 200 v Use 285 531 455 2868X 3x l pf Fixed PBT 20 400 v 285 531 C19 1 X2869 and up 1 pf Fixed MT 20 4...

Page 76: ...5 25 fifif Var Cer 500 v 281 010 C32 1 X2406 and up 6 25 iif Fixed EMT 20 50 300 v 290 000 C33 101 844 50 ifif Fixed Cer 10 400 v Use 281 518 845 and up 47 pjuf Fixed Cer 10 400 v 281 518 C34 101 454 4 30 iiiif Var Cer 500 v Use 281 010 455 and up 5 20 jujuf Var Cer 500 v 281 010 C35 101 454 4 30 ijiif Var Cer 500 v Use 281 010 455 and up 4 5 25 iiiif Var Cer 500 v 281 010 C36 101 844 25 i if Fixe...

Page 77: ...4 101 454X 40 iif Fixed X845 2868 1000 iiiif Fixed 2869 and up 1000 x jL tf Fixed C55 101 454 5 iif Fixed 455 2416 1 iif Fixed 2417 and up 1 iif Fixed T Y P E 511 Cer 500 v Use 281 010 Cer 500 v Use 281 010 Cer 500 v 281 010 MT 20 400 v 281 526 MT 20 600 v 285 528 Cer 500 v 281 005 EMC 20 50 450 v 290 037 MT 20 600 v 285 528 MT 20 400 v 285 526 EMC 20 450 v Cer GMV 500 v 283 000 Cer GMV 500 v 283 ...

Page 78: ...and up 2x20 pf Fixed EMC 20 50 450 v 290 036 101 454 5 pf Fixed PMC 20 2000 v 285 539 455 and up 01 pf Fixed MT 20 400 v 285 510 X455 and up 01 pf Fixed MT 20 400 v 285 510 101 454X 2x20 pf Fixed EMC 20 50 450 v 290 037 101 454 2x20 pf Fixed EMC 20 50 450 v 290 037 455 and up 01 pf Fixed MT 20 400 v 285 510 X455 and up 2x20 pf Fixed EMC 20 50 450 v 290 037 X455 844 01 pf Fixed PTM 20 600 v Use 285...

Page 79: ...1458 5099 5 10 ph Var Use 114 020 5100 and up 4 8 8 5 ih Var 114 020 L5 101 844 14 25 ih Var Use 114 004 845 5099 10 20 ih Var Use 114 001 5100 up 11 19 ih Var 114 001 L6 101 454 2 4 ih Fixed 5 108 063 455 844 2 0 ih Fixed 5 Use 108 010 845 and up 1 8 ih Fixed 5 108 010 L7 101 1457 7 12 ih Var Use 114 023 1458 and up 6 5 12 ih Var 114 023 L8 101 5099 18 32 ph Var Use 114 005 5100 and up 17 30 ih V...

Page 80: ...5 k 1 w R15 101 and up 47 ft 1 2 w R16 101 454 500 k 2 w 455 5099 100 k 2 w 5100 and up 100 k 2 w R17 101 and up 100 k 1 2 w P A G E 6 8 T Y P E 5 Fixed Comp 10 302 474 Fixed Comp 10 302 470 Fixed Comp 10 304 152 Fixed Comp 10 302 561 Fixed Comp 10 302 470 Fixed Comp 10 302 181 Fixed Comp 10 302 331 Fixed Comp 10 304 152 Fixed Comp 10 302 121 Var Comp 20 Use 311 035 Var Comp 20 311 035 Fixed Comp ...

Page 81: ... Comp 10 R26A X455 and up 10 k 1 w Fixed Comp 10 R26B X455 and up 10 k 1 w Fixed Comp 10 R27 101 454 15 k 1 w Fixed Comp 10 455 844 18 k 1 2 w Fixed Comp 10 845 2868X 18 k 1 w Fixed Comp 10 R28 101 454 820 k 1 w Fixed Comp 10 455 2868X 120 k 1 2 w Fixed Comp 10 R28 1 X2869 2899X 10 k 2 w Fixed Comp 10 X2950 and up 10 k 2 w Fixed Comp 10 R28 12 X2900 2949X 27 k 2 w Fixed Comp 10 R28 2 X2869 and up ...

Page 82: ...p 10 meg 1 2 w Fixed Comp 10 302 106 R39 12 X2601 and up 22 meg 1 2 w Fixed Comp 10 302 226 R40 X581 and up 470 a 1 2 w Fixed Comp 10 302 471 R41 101 454 10 k 2 w Fixed Comp 10 306 103 R41A B X455 and up 10 k 2 w Fixed Comp 10 306 103 R42 101 454 20 k 1 4 w Var Comp 20 Use 311 018 455 5099 500 k 1 4 w Var Comp 20 Use 311 034 5100 and up 500 k 2 w Var Comp 20 311 034 R43 101 454 33 k 1 w Fixed Comp...

Page 83: ...06 R55 2 X2601 and up 22 meg 1 2 w Fixed Comp 10 302 226 R56 101 454 30 meg 1 2 w Fixed Comp 10 Use 302 106 455 2600X 35 meg 1 2 w Fixed Comp 10 and 302 226 R56 1 X2601 and up 10 meg 1 2 w Fixed Comp 10 302 106 R56 2 X2601 and up 22 meg 1 2 w Fixed Comp 10 302 226 R57 101 5099 100 k 1 4 w Var Comp 10 Use 311 026 5100 and up 100 k 2 w Var Comp 20 311 026 R58 101 and up 4 7 k 1 2 w Fixed Comp 10 302...

Page 84: ...w Var Comp 20 Use 311 026 5100 and up 100 k 2 w Var Comp 20 311 026 R68 1 X845 1054 470 k 1 2 w Fixed Comp 10 302 474 1055 and up 120 k 1 2 w Fixed Comp 10 302 124 R69 101 454 2 2 k 1 w Fixed Comp 10 304 222 4 5 5 and up 4 7 k 2 w Fixed Comp 10 306 472 R70 101 and up 2 2 meg 1 w Fixed Comp 10 304 225 R71 101 and up 2 2 meg 1 w Fixed Comp 10 304 225 R72 X455 and up 47 a 1 2 w Fixed Comp 10 302 470 ...

Page 85: ... 2 w Fixed Comp 10 1 w Var WW 10 1 2 w Var w w 5 3 w Var WW 2 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 2 w Fixed Prec 1 1 w Fixed Prec 1 1 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Prec 1 1 2 w Fixed Comp 10 1 2 w Fixed Comp 10 1 2 w Fixed Comp 10 1...

Page 86: ...302 101 R102 101 and up 1 meg 1 2 w Fixed Prec 1 309 014 R103 101 454 47 k 1 2 w Fixed Comp 10 302 473 455 and up 68 k 1 2 w Fixed Comp 10 312 517 R104 101 and up 680 2 2 w Fixed Comp 10 306 681 R105 101 454 680 2 2 w Fixed Comp 10 306 681 455 and up 2 k 5 w Fixed WW 5 308 003 R106 101 454 680 2 2 w Fixed Comp 10 306 681 455 2370 820 2 2 w Fixed Comp 10 306 821 2371 and up 680 2 2 w Fixed Comp 10 ...

Page 87: ...02 820 R116 101 5099 1meg 1 4 w Var Comp 20 Use 311 039 5100 and up 1meg 2 w Var Comp 20 311 039 R117 101 454 100 k 1 2 w Fixed Comp 10 302 104 455 844X 68 k 1 2 w Fixed Comp 10 302 683 R117 1 X1460 and up 1 meg 1 2 w Fixed Comp 10 302 105 R117 2 X1460 and up 1 meg 1 2 w Fixed Comp 10 302 105 R118 101 and up 1meg 1 2 w Fixed Comp 10 302 105 R119 X455 and up 2 2 k 2 w Fixed Comp 10 306 222 R119 1 X...

Page 88: ...Fixed Comp Selected R128 101 and up 47 2 1 2 w Fixed Comp 10 302 470 R129 X845 5099 10 k 1 2 w Fixed Comp 10 302 103 5100 and up 4 7 k 1 2 w Fixed Comp 10 302 472 R130 101 454 100 k 1 2 w Fixed Comp 10 302 104 455 867 220 k 1 2 w Fixed Comp 10 302 224 868 and up 100 k 1 2 w Fixed Comp 10 302 104 R131A B 101 1489 500 k 1 4 w Var Comp 20 1490 3299 250 k 1 4 w Var Comp 20 3300 5099 220 k 1 4 w Var Co...

Page 89: ...0 and up 150 k 1 2 w Fixed Comp 10 302 154 R152 101 454 220 k 2 w Fixed Comp 10 306 224 455 and up 47 k 1 2 w Fixed Comp 10 302 473 R153 101 454 820 k 1w Fixed Comp 10 304 824 455 and up 220 k 1 w Fixed Comp 10 304 224 R154 101 454 820 k 1 w Fixed Comp 10 304 824 455 5099 1meg 1 2 w Fixed Comp 5 Use 312 524 5100 and up 1 meg 1 2 w Fixed Comp 3to 5 312 524 R155 101 454 220 k 2 w Fixed Comp 10 306 2...

Page 90: ... k 1 2 w Fixed Comp 10 302 104 R168 101 454X 47 k 1 2 w Fixed Comp 10 302 473 R170 101 454X 470 k 1 2 w Fixed Comp 10 302 474 R171 101 454 680 k 1 2 w Fixed Comp 10 302 684 455 and up 820 k 1 w Fixed Comp 10 304 824 R172 X455 and up 820 k 1 w Fixed Comp 10 304 824 R173 X455 844 50 meg 2 w Fixed Carbon 20 Use 310 517 845 5146 50 meg 2 w Fixed Carbon 10 310 517 5147 and up 2 18 meg 1 2 w Fixed Comp ...

Page 91: ...T 2 This is easily done at the transformer terminal boards T1 101 454 Primary 117 volt 50 60 cycle 120 013 Secondaries 440 0 440 v 125 ma with one winding extended to 1250 v at 1ma 5 v 3a insulated for 500 v 2 5 v 1 75 a insulated for 1250 v RMS 2 5 v 1 75 a insulated for 1600 v 6 3 v 0 6 a insulated for 1600 v T2 101 454 Primary 117 volt 50 60 cycle 120 014 Secondaries 275 0 275 v 135 ma 5 v 3a i...

Page 92: ... 154 016 V7 101 2868X 6C4 154 029 V7 1 X2869 5099 5100 and up 12AU7 12AT7 154 041 154 039 V8 101 and up 6C4 154 029 V9 101 and up 6AG7 154 012 V10 101 and up 6C4 154 029 V ll 101 and up 6J6 154 032 V12 101 and up 6AL5 154 016 V13 101 and up 6AU6 154 022 V14 101 and up 6AU6 154 022 V15 101 454 455 and up OD3 6C4 154 003 154 029 V16 101 and up 6AG7 154 012 V16 1 X2406 and up 12AT7 154 039 V17 101 an...

Page 93: ...17 V26 101 454 OD3 154 003 455 and up 6AU6 154 022 V27 101 454 6SJ7 154 088 455 and up 6AS7G 154 020 V28 101 454 OC3 154 002 455 and up 6AU6 154 022 V29 101 454 6L6 154 087 455 and up 5651 154 052 V30 101 454 6V6 154 089 455 and up OD3 154 003 V31 X455 and up 6AQ5 154 017 V32 X455 3349X 1B3GT 154 091 V32 1 X3350 and up 1V2 154 004 V33 X455 3349X 1B3GT 154 091 V33 1 X3350 and up 1V2 154 004 T Y P E...

Page 94: ... L24 101 5099X Var 4 8 8 5 ph 114 020 L201 L212 X5100 and up Fixed Delay Line 12 section 108 034 L213 L223 X5100 and up Fixed Delay Line 11 section 108 033 L224 X5100 and up Var 4 8 8 5 ph 114 020 R E SIST O R S R1 101 5099X 270 Q 1 2 w Fixed Comp 10 302 271 R2 101 5099X Selected 1 2 w Fixed Comp R201 X5100 and up Selected 1 2 w Fixed Comp 10 302 271 R202 X5100 and up Selected 1 2 w Fixed Comp 10 ...

Page 95: ...ig 7 1 0 2 microsecond pulse with the delay network switched out Note absence of leading edge This input matching produces an insertion loss of 3 db but is necessary since the impedance of the output termination varies slightly with the setting of the Vert Ampl Atten potentiometer When the delay network is not needed it may be removed from the circuit by means of a rota ry switch operated from the...

Page 96: ...ue of the shunt resistor Remove the delay network cover and install a 1 2 watt resistor of suitable value 100 to 10 000 ohms in series with R2 R202 S N510 and up CAUTION DO NOT DISTURB THE AD JUSTMENT OF THE VARIABLE CAPA CITORS P A G E 7 2 T Y P E 5 1 D E L A Y N E T W O R K ...

Page 97: ......

Page 98: ......

Page 99: ... T Y P E 5IIAD C A T H O D E R A Y O S C IL L O S C O P E 4 A A II 12 51 s n ioi a up BLOCK DIAGRAM ...

Page 100: ...SELECTOR 52 SWEEP RANGE S6 SWEEP MAGNIFIER TYPE 511 OSCILLOSCOPE S N 101 4 S 4 SW EEP SEE P A R T S LIST TO EARLIER CHANELS SHOWN IN RED c c 5 1 TRIGGER SELECTOR 52 SWEEP RANGE S6 Sweep magnifier SWEEP O V V L L I ...

Page 101: ...AA ...

Page 102: ...SWEEP MAGNIFIER SWEEP AMPLIFIER c r r c r r s c ...

Page 103: ...TYPE 511 CATHODE RAY OSCILLOSCOPE VERTICAL AMPLIFIER CIRCUIT S N 101 454 VERTICAL AMPLIFIER CIRCUIT S N 4 5 5 8 4 4 ...

Page 104: ...AND GREATER ARE OTHERWISE MARKED I I ARE MFDS IMFDS UNLESS AVERAGE SUPPLY CURRENT AT CHASSIS TERMINAL BLOCK 140 V SUPPLY 0 3 M A 225 V SUPPLY 1 2 8M A VERTICAL AMPLIFIER TYPE 511A OSCILLOSCOPE S N 845 2405 I DEC 50 VlllJllJIAIW IWOII A ...

Page 105: ...TYPE 5IIAD CATHODE RAY OSCILLOSCOPE S N 2406 4 UP A A ...

Page 106: ... 2 2 5 V VERTICAL AMPLIFIER ...

Page 107: ...TYPE 511 CATHODE RAY OSCILLOSCOPE S N 101 454 AA POWER SUPPLY ...

Page 108: ...TO S7 3 A 6 6 117 V 60 APR 1949 S N 455 2405 A A ...

Page 109: ...Tl 5 TY P E 5 1 1A D C A T H O D E R A Y O S C ILLO S C O P E L V POWER SUPPLY S N 2 4 0 6 a UP A A ...

Page 110: ...I V32 BELOW S N 3 3 50 SEE P A R T S LIST FOR EARLIER VALUES OF PARTS SHOWN IN RED TYPE S H A D CATHODE RAY O S C ILLO S C O P E S N 2 4 0 6 U P ...

Page 111: ...4 A A C n o c n n r ...

Page 112: ...VE ARE COAXIALLY WOUND ON THE SAME COIL FORM L I3T 0 L 23 TYPE ID 25 DELAY NETWORK S N 101 454 IS THE SAME AS TYPE I AD 25 EXCEPT THAT SI IS A RELAY RL1 c r r 3 r r r c PR 0M TO ROOT I NOTE S N 5157 SUP R 22IA R 2 2 2 A AND R223A CHANGED TO A A ...

Page 113: ......

Search results

Summary of Contents for 511

Reviews:

Related manuals for 511

Brands by name

Popular brands

Tektronix 511, Instruction Manual

Search results

Summary of Contents for 511

Reviews:

Related manuals for 511

Brands by name

Popular brands