Tektronix 455 Instruction Manual Download Page 179

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455/A 2/B 2

VO LTA G E CO NDITIO NS

Voltages shown on this schematic diagram were measured with a Tektronix DM 501 Digital Multimeter. Voltage measurements can vary as

much as +20%.

No signals were applied to the Vertical or Horizontal modules. The 455 IN T E N S ITY control was set to midrange.

W AVEFORM CONDITIONS

Waveforms below were taken from a Tektronix 7000-Series oscilloscope equipped with readout, 7B series Time-Base, 7A13 Differential

Comparator and a 10X probe. The offset voltages were read directly from the 7A13 in the dc coupled mode. If a different test oscil

loscope system is used, the ac coupled mode may have to be used due to high dc offset voltages. This can cause some waveforms to appear

slightly different. Waveforms may vary as much as ±20%.

The 455 IN TEN SITY control was set to midrange. The Horizontal Module (A) sweep was free-running. A INTEN mode was used with

delaying sweep module (B2). See note on waveforms.

Waveforms 3, 4, 5, 6 and 7 were taken using waveform at TP522 to externally trigger the test oscilloscope.

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* T H IS P O R T IO N PR E SE N T O N L Y

W IT H H O R IZ O N T A L M O D U L E IN
A IN T E N M O D E .

1907-102

Summary of Contents for 455

Page 1: ...Tektronix 455 A2 B2 PORTABLE OSCILLOSCOPE WITH OPTIONS I N S T R U C T I O N M A N U A L ...

Page 2: ... Group 40 Tektronix COMMITTED TO EXCELLENCE PLEASE CHECK FOR CHANGE INFORMATION AT THE REAR OF THIS MANUAL 455 A2 B2 PORTABLE OSCILLOSCOPE WITH OPTIONS I N S T R U C T I O N M A N U A L 97077 Serial Number__________________ First Printing MAR 1975 Revised OCT 1983 ...

Page 3: ...price change privileges are reserved INSTRUMENT SERIAL NUMBERS Each instrument has a serial number on a partel insert tag or stamped on the chassis The first number or letter designates the country of manufacture The last five digits of the serial number are assigned sequentially and are unique to each instrument Those manufactured in the United States have six unique digits The country of manufac...

Page 4: ...ement 2 8 Dual Trace Phase Difference Measurement 2 8 High Resolution Phase Measurement 2 9 Common Mode Rejection 2 10 Cascaded Operation 2 10 Time Duration Frequency Measurements 2 10 Risetime Measurements 2 11 Differential Time Measurements 2 11 Delayed Sweep Magnification 2 13 SECTION 3 PERFORMANCE CHECK Options 3 1 Test Equipment Required 3 1 Preliminary Procedure 3 2 Performance Check Procedu...

Page 5: ...ifier 4 11 Delay Line Driver 4 11 Normal Trigger Pickoff 4 11 Vertical Output Am plifier 4 11 Trigger Input 4 12 Trigger Coupling 4 12 Input Source Follower 4 12 Trigger Sweep and Horizontal Preamplifier 4 12 A and B Trigger Generators 4 12 Sweep Generator IC s 4 15 Miller Sweep Generator 4 15 Sweep Control 1C 4 16 Sweep Control Operation 4 17 A Sweep Mode 4 17 B Dly d Sweep Mode 4 18 A Inten Swee...

Page 6: ...rizontal Board Removal 5 13 Troubleshooting 5 14 Troubleshooting Aids 5 14 Troubleshooting Chart 5 14 Diagrams 5 14 Circuit Board Illustrations 5 14 Component Value Identification 5 14 Semiconductor Lead Configurations 5 14 Troubleshooting Equipment 5 14 Troubleshooting Techniques 5 16 Check Control Settings 5 16 Check Associated Equipment 5 16 Check Instrument Calibration 5 16 Visual Check 5 16 I...

Page 7: ...2 11 Fig 2 11 Risetime 2 11 Fig 2 12 Time duration between points on a waveform 2 12 Fig 2 13 Time difference between pulses 2 12 Fig 2 14 Delayed Sweep magnification 2 13 Fig 3 1 Amplitude calibrator test setup 3 3 Fig 3 2 Fast rise pulse generator test setup 3 4 Fig 3 3 Sine wave generator test setup 1 3 5 Fig 3 4 Low frequency generator test setup 3 6 Fig 3 5 Sine wave generator test setup 2 3 ...

Page 8: ...ent locations below SN B044420 6 11 Fig 6 7 C232 and C233 adjustment locations 6 13 Fig Option 4 1 Partial Power Supply diagram Option 4 Page 1 Fig Option 5 1 Block diagram Option 5 Page 8 Fig Option 5 2 Inverting non inverting amplifier block diagram Option 5 Page 9 Fig Option 7 1 Power switch Option 7 Page 1 Fig Option 7 2 Dc voltage selector switch and dc input connector Option 7 Page 2 Fig Opt...

Page 9: ......

Page 10: ...s a personal injury hazard not immediately accessible as one reads the marking or a hazard to property including the equipment itself DANGER indicates a personal injury hazard immediately accessible as one reads the marking SYMBOLS In This Manual This symbol indicates where applicable cautionary or other information is to be found As Marked on Equipment y DANGER High voltage Protective ground eart...

Page 11: ...cord and connector specified for your product Use only a power cord that is in good condition For detailed information on power cords and connectors see Section 2 Operating Instructions Refer cord and connector changes to qualified service personnel Use the Proper Fuse To avoid fire hazard use only the fuse of correct type voltage rating and current rating as specified in the parts list for your p...

Page 12: ...ower On Dangerous voltages exist at several points in this product To avoid personal injury do not touch exposed connections and components while power is on Disconnect power before removing protective panels soldering or replacing components Power Source This product is intended to operate from a power source that will not apply more than 250 volts rms between the supply conductors or between eit...

Page 13: ...455 A2 B2 x 455 A2 B2 Portable Oscilloscope ...

Page 14: ...al Characteristics are divided into two categories Characteristics shown in the Performance Requirement column are instrument specifications and can be verified by the Performance Check Information in the Supplemental Information column is provided for reference or clarification only The following instrument specifications apply over an ambient temperature range of 15 C to 55 C unless otherwise in...

Page 15: ...4 V rms Line Frequency 48 Hz to 440 Hz Maximum Power Consumption 455 A2 B2 40 watts at 115 V 60 Hz NOTE With A 2 and B2 Modules typical power consumption is about 32 watts CRT DISPLAY Horizontal Resolution A t least 15 lines in 1 div Vertical Resolution A t least 15 lines in 1 div Display Area 8 x 1 0 cm Geometry 0 1 div or less Trace Rotation Range Adequate to align trace with horizontal center l...

Page 16: ...inch p p 4 g s at 55 Hz with frequency varied from 10 Hz to 55 Hz to 10 Hz in 1 min sweeps Hold 3 min at each major resonance or if none present hold 3 min at 55 Hz Shock Operating and Non Operating 30 g s A sine 11 ms duration 2 shocks per axis each direction for a total of 12 shocks TABLE 1 3 Physical Characteristic Information Weight 455 A2 B2 with Panel Cover Modules Accessories and Accessory ...

Page 17: ...9 50 in 49 53 cm Handle Extended 21 70 in 55 19 cm Transportation Meets the limits of National Safe Transit Committee Test Procedure 1A with a 30 inch drop Construction Plastic alloy cabinet alluminum alloy chassis and panel with glass laminate etched wiring circuit boards Finish Anodized front panel and textured cabinet 1 9 0 7 2 0 Fig 1 1 Dimensional drawing 1 4 REV A OCT 1975 ...

Page 18: ...position 5 V D IV DC to at least 45 MHz AC Coupled Lower 3 dB Point 10 Hz or less with a IX probe 1 Hz or less with a 10X probe Step Response Risetime 0 35 bw in MHz 15 C to 55 C 5 mV to 2 V DIV 7 0 nanoseconds or less 5 div reference centered vertically dc coupled at all deflection factors from a 25 2 source with VAR V D IV control in calibrated position 5 V DIV 7 8 nanoseconds or less Positive G...

Page 19: ...tely 250 kHz 250 kHz within 20 Input Resistance and Capacitance 1 M 2 within 2 paralleled by approxi mately 20 pF within 3 Aberrations 2 or less using a 1 M 2 20 pF input time constant normalizer 20 C to 30 C Maximum Input Voltage DC Coupled 250 V dc Peak ac or 500 V p p ac at 1 kHz or less AC Coupled 250 V dc Peak ac or 500 V p p ac at 1 kHz or less Cascaded Operation CH 2 OUT into CH 1 Bandwidth...

Page 20: ...internal or 100 mV external from 50 kHz to 10 MHz increasing to 1 5 div internal or 250 mV external at 50 MHz Attenuates signals below about 50 kHz HF REJ Coupled 0 4 div internal or 100 mV external from 60 Hz to 50 kHz Attenuates signals below about 60 Hz and above about 50 kHz DC Coupled 0 4 div internal or 50 mV external from dc to 10 MHz increasing to 1 5 div in ternal or 250 mV external at 50...

Page 21: ...qual cable length from signal source to vertical channel and external trigger input terminated in 50 51 at each input Centering of Trig gering Point Within 1 0 div of center screen HORIZONTAL DEFLECTION SYSTEM Calibrated Sweep Range A Sweep 0 5 s div to 0 05 jus div in 22 steps in a 1 2 5 sequence X I0 MAG extends maximum sweep rate to 5 ns div B Sweep 50 ms div to 0 05 xs div in 19 steps in a 1 2...

Page 22: ...ust position to the left of graticule center TIM E DIV switch at 1 0 ms div Differential Time Measurement Accuracy See Fig 1 3 on nex For Measurements of One or More Major Dial Divisions t page For Measurements of Less Than One Major Dial Division With the A TIM E DIV switch at 5 is div or 2 Ats div the differential time measurement accuracy lim it is valid only for DELAY TIME POSI TION dial setti...

Page 23: ...rtical system X Axis Bandwidth DC to at least 3 MHz 10 division reference signal Input Resistance Same as vertical system Input Capacitance Same as vertical system Maximum Useable Input Voltage Phase Difference Between X and Y Axis Amplifiers Same as vertical system Within 3 from dc to 50 kHz Deflection Accuracy Within 4 in CAL position X Axis Linearity 0 2 div or less compression or ex pansion wh...

Page 24: ...ion Polaroid Land Pack film back for 3000 speed film includes Adapter Frame Corrector Lens 016 0301 01 Order C 30A P Option 1 PROTECTIVE COVER Waterproof blue vinyl Order 016 0344 00 VIEWING HOODS Folding polarized Viewing Hood Order 016 0180 00 Folding Viewing Hood binocular Order 016 0566 00 Folding Viewing Hood light shielding Order 016 0592 00 PROBES P6062A IX or 10X Probe Package Provides dc ...

Page 25: ...table power supply suitable for powering portable oscil loscopes or other instruments in the field Order 1105 Battery Power Supply 1106 BATTERY PACK A convenient snap on battery power supply for oper ating the 455 Option 7 oscilloscopes Order 1106 Battery Pack MESH FILTER Improves Display Contrast Order 378 0726 01 1 12 REV A OCT 1975 ...

Page 26: ... plug is directly connected to the metal parts of the instrument For electric shock pro tection insert this plug in a mating outlet with a safety earth contact If a 3 to 2 wire adapter is used to connect this in strument to a 2 wire ac power system be sure to connect the ground lead of the adapter to earth ground Failure to complete the ground system may allow the metal parts of this instrument to...

Page 27: ...LIBRA TOR output can also be used to calibrate current probes by attaching a current loop to the output terminals To make a plug in current loop order Tektronix Part 012 0259 00 and m odify it by replacing the 50 2resistor inside with a bare wire A current loop also can be made from 5 turns o f insulated wire 8 SCALE ILLUM Controls graticule illumination Rear Panel Fig 2 2 9 FUSE HOLDER Houses the...

Page 28: ... LED at a time lights up to indicate the correct deflection factor Use of a IX probe or no probe causes the left LED to light up Use of a 10X probe with a scale factor switching con nector causes the right LED to light up NOTE Use o f a 10X probe without a scale factor switching connector causes the left LED to light up and indicate the wrong deflection factor in this case read the correct deflec ...

Page 29: ...plays only signals applied to the CH 1 input connector CH 2 or X Y Displays only signal applied to the CH 2 input connector This button must be de pressed for X Y operation A LT Alternate The display switches between the signals applied to the CH 1 and the CH 2 input connectors This switching occurs at the end o f each sweep during retrace This mode is useful fo r viewing both input signals at swe...

Page 30: ...ing up the A Trigger circuit when a trigger signal is available without a display on the crt for example when using external or line triggers 27 UNCAL Indicator Lights when the A Sweep rate is uncalibrated VAR control out of the calibrated detent 28 READY Indicator When in the single sweep mode this indicator lights when the A Sweep is reset Upon receipt of an adequate trigger signal a single swee...

Page 31: ...the NORM mode when the trigger signal repetition rate is too low for the AUTO mode indicated by the TRIG light blinking SGL SWP The SGL SWP switch is a momentary contact spring return push button switch When the SGL SWP button is pushed the A Trigger cir cuit operates in the same manner as in the NORM mode However upon receipt of an adequate trig ger signal only one sweep is presented Another sing...

Page 32: ...annel 2 signal LINE A Trigger circuit only A sample of the power line frequency is used as a trigger signal It is useful when the input signal is time related mul tiple or sub multiple to the line frequency or when it is desirable to provide a stable display of a line frequency component in a complex waveform DC All components of a trigger signal are coupled to the input of the trigger circuit It ...

Page 33: ... DC If the waveform appears above the reference line the voltage is positive If the waveform appears below the reference line the voltage is negative 6 Measure the vertical difference in divisions between the reference line and the desired point on the waveform and multiply by the volts div switch setting Example The vertical difference is 5 divisions see Fig 2 6 The VOLTS DIV switch is set to 10 ...

Page 34: ...ight divisions between the first and ninth graticule lines see Fig 2 7 Each division of the graticule represents 45 of the cycle 360 r 8 divisions 45 division The sweep rate can be stated in terms of degrees as 45 division 9 Measure the horizontal difference between corresponding points on the waveforms 10 Multiply the measured distance in divisions by 45 division sweep rate to obtain the exact am...

Page 35: ... Apply the line frequency signal to the CH 2 input connector 3 Set the VERT MODE switch to ALT 4 Set the INVERT button so that the Channel 2 display is opposite in polarity 5 Adjust the channel 2 VAR control to make the Channel 2 display amplitude about equal to the undesired com ponent of the channel 1 display 6 Set the VERT MODE switch to ADD and slightly re adjust the Channel 2 VAR control for ...

Page 36: ...wave form amplitude see percentage markings on the left edge of the graticule 3 Measure the horizontal distance divisions between the 10 and 90 points on the waveform point A to point B Fig 2 11 4 Use the following formula to find risetime Risetime horizontal distance divisions TIM E DIV setting Example The horizontal distance between the 10 and 90 point on the waveform is 5 divisions with a TIM E...

Page 37: ...ch setting Example The A TIME DIV switch was set to 2 ms and the B TIME Dl V switch was set to 0 1 ms The first DTP control setting was 1 23 at point A Fig 2 12 and the second was 9 56 at point B Fig 2 12 Substituting the given values Time Difference 9 56 1 23 x 2ms Time Difference 16 7 ms B DELAYED DIFFERENTIAL TIME MEASURE MENTS Use the following procedure to make differential time measurements ...

Page 38: ...ensified in step 3 is not displayed in magnified form see Fig 2 14 B The displayed sweep rate is determined by the B TIME DIV switch To calculate the apparent magnification factor use the formula Apparent _ A TIME DIV switch setting Magnification B TIM E DIV switch setting 8 Use the following formula to find the time difference second first A TIM E DIV Time DTP DTP x switch Difference setting sett...

Page 39: ...B SOURCE switch to the same position as the A SOURCE switch Adjust the B LEVEL control for a stable intensified zone NOTE Inability to intensify the desired portion o f the A sweep display indicates the lack o f a transition o f sufficient amplitude in that portion on which to trigger If this is the case try reducing the VOLTS DIVswitch setting for more display amplitude or using external triggeri...

Page 40: ...ektronix Type 106 Square wave Generator 3 Sine Wave Generator Frequency 350 kilohertz to above 50 megahertz output amplitude variable from 0 5 to 4 volts peak to peak output impedance 50 ohms reference frequency 50 to 350 kilohertz amplitude accuracy constant within 3 of reference frequency as output frequency changes Cascaded sensitivity and bandwidth checks Verti cal Amplifier bandwidth checks X...

Page 41: ...ODE CH 1 INVERT button out normal SWEEP HORIZ DISPLAY A A and B TIM E DIV 2 ms VAR TIM E DIV fully clockwise detent DELAY TIME POS fully counterclock wise SWEEP cont X10 MAG out off A TRIGGER HOLDOFF NORM detent TRIGGERING both A and B if applicable LEVEL 0 SLOPE OUT COUPLING AC SOURCE NORM TRIG MODE AUTO 4 The scale factor light above the CH 1 VOLTS DIV knob should be lit indicating that the inst...

Page 42: ...E VOLTS DIV RANGE a Set CH 1 and CH 2 VOLTS DIV to 5 mV and adjust calibration generator output to 20 mV d CHECK Display amplitude reduces from 4 divisions to less than 1 6 divisions with CH 1 VAR control fully counterclockwise e Return both VAR controls to detent position 3 X GAIN a Set VERTMODE CH 2 CH 2 AC GND DC GND A TIM E DIV X V INTENSITY for visible display b Set calibration generator to 5...

Page 43: ...en TRIG VIEW is pressed and held in Adjust A LEVEL control to vertically position display e Set calibration generator to 0 2 V f Set A SOURCE to EXT d Set CH 1 VOLTS DIV switch and VAR control for 4 division display Center display vertically with POSITION control e CHECK Time difference along graticule horizontal centerline between CH 1 display and TRIG VIEW display is 7 5 ns or less 1 5 div or le...

Page 44: ...or frequency for 50 kHz sine wave refer ence and adjust output for 1 division display d Set VERT MODE to CH 1 e CHECK Display is approximately 5 divisions 7 CASCADED BANDWIDTH a Adjust generator output for 5 division 50 kHz display d CHECK Display amplitude is at least 3 5 divisions 9 CH 1 BANDWIDTH a Set VERT MODE to CH 1 b Remove 50 2 cable and termination from CH 1 input and CH 2 OUT connector ...

Page 45: ...sion display d CHECK Stable display can be obtained in both and positions of A SLOPE switch for these modes d CHECK Display amplitude is at least 7 0 divisions 11 TRIGGER JITTER a Set VERT MODE CH 1 A TIME DIV 05 juS X I0 MAG in on b Set generator frequency to 50 MHz and adjust out put amplitude for 1 5 division display A SOURCE A COUPLING NORM AC HFREJ DC CH 1 DC CH 2 DC e CHECK No stable display...

Page 46: ...E switch for the following modes A SOURCE A COUPLING NORM AC LF REJ DC CH 1 DC CH 2 DC e CHECK No stable display can be obtained with A COUPLING switch in HF REJ position f Set HORIZ DISPLAY to B DLY D g CHECK Stable display can be obtained in both h CHECK No stable display can be obtained with B COUPLING switch in HF REJ position 14 50 kHz INTERNAL TRIGGERING a Set generator frequency to 50 kHz r...

Page 47: ...display can be obtained in both and positions of B SLOPE switch for LF REJ position of B COUPLING switch f CHECK No stable display can be obtained in HF REJ position of B COUPLING g Set HORIZ DISPLAY to A h CHECK Stable display can be obtained in both and positions of A SLOPE switch for AC and DC positions of A COUPLING switch i Set HORIZ DISPLAY to B DLY D j Set generator frequency to 50 kHz refe...

Page 48: ...termination from dual input cable connected to CH 1 and CH 2 inputs and connect to EXT Z AXIS connector at rear of instrument d CHECK Trace modulation is noticeable at normal intensity Adjust A LEVEL control as required to obtain stable display 20 TRIGGER LEVEL RANGES a Remove cable from Z AXIS INPUT connector and connect without 50 SI termination to dual input cable at vertical module b Set A and...

Page 49: ...RIZ DISPLAY A b Connect test equipment as shown in Fig 3 6 c CHECK A TIM E DIV accuracy according to Table 3 3 Incremental accuracy should be 1 time mark division within 2 within 0 2 div at the 11th graticule line d Set HORIZ DISPLAY to B DLY D e CHECK B TIM E DIV accuracy according to Table 3 3 adjust A LEVEL control as needed for a stable display TABLE 3 3 A and B Timing Accuracy A and B Time Ma...

Page 50: ...at 11th graticule line except at 05 jiis A TIME DIV setting which should be 1 time mark 2 div Exclude portions of sweep as indicated in Table 3 4 23 DIFFERENTIAL TIME MEASUREMENT ACCURACY a Set generator for 0 1 us time marks TABLE 3 4 A and B Magnified Accuracy A and B TIM E DIV Switch Setting Time Mark Generator Output Portions of Total Magnified Sweep Length to Exclude From Measurement 05 us 10...

Page 51: ...cule vertical center line c CHECK Horizontal jitter is 1 division or less d Repeat part c with DTP set at 9 00 e Disconnect test equipment TABLE 3 5 Differential Time Accuracy Time Mark Generator Output A TIM E DIV Switch Setting B TIME DIV Switch Setting DTP Setting 1ms 1 Ms 0 1 ms 2 ms 2 Ms 0 2 ms 5 m s 5 Ms 0 5 ms 10 ms 10 ms 1 ms 2 0 ms 2 0 ms 2 ms 5 0 m s 50 m s 5 m s 0 1 ms 0 1 ms 1 0 ms 0 2...

Page 52: ...e 2 divisions 27 CALIBRATOR OUTPUT a Set CH 1 VOLTS DIV 1 V A TIM E D IV 5 ms b Connect CALIBRATOR output to CH 1 input c CHECK For square wave display of 300 mV 3 div at approximately 1 kHz 1 full cycle 2 div NOTE Calibrator signal peak to peak amplitude should be 300 m V within 1 I f necessary to check amplitude to this accuracy refer to the Adjustments section REV A OCT 1975 3 13 ...

Page 53: ...t intensity and blanking It sums the blanking signals from the Vertical Module Horizontal Module and the EXT Z AXIS IN con nector The output level of the Z Axis Amplifier circuit controls the display intensity through the CRT circuit The CRT circuit provides the voltages and controls to operate the crt The Power Supply circuit provides the low voltage power except 95 volt which is developed in the...

Page 54: ...rigger circuit con tains LEVEL SLOPE COUPLING and SOURCE controls The A Sweep Generator circuit when initiated by the A Trigger circuitry produces a linear sawtooth output signal the slope of which is controlled by the A TIME DIV switch The TRIG MODE switch controls the operating mode of the A Trigger circuitry In the AUTO position the absence of an adequate trigger signal for about 100 ms after t...

Page 55: ...f to saturation producing an accurate square wave at the output connector Transistor Q386 is cut off when the square wave signal rises to maxi mum and goes into saturation when the signal falls to minimum Amplitude adjustment R386 adjusts the current through Q386 R387 and R388 to accurately set the cali brator output voltage HORIZONTAL OUTPUT AMPLIFIER The Horizontal Output Amplifier provides the ...

Page 56: ...ve The amount of voltage on C548 determines when Q552 turns on thereby controling the regulation For example Q552 turns on when the output voltage 2 kV attempts to go more negative Current then builds up through L554 and T550 Voltage is induced into the feedback windings keeping Q552 on until the rate of current change through L554 and T550 drops to zero causing feedback current to drop and turn o...

Page 57: ...ng stages The current signals from the various control sources are connect ed to the emitter of Q514 and the algebraic sum of the signals determines the collector conduction level Transistors Q518 Q526 and Q524 compose a feedback amplifier stage with R515 and R516 as the feedback elements Capacitors C515and C516 provide high frequency compensa tion Q518 is an emitter follower providing drive to co...

Page 58: ...fficiently beyond the normal operating current Q734 turns on The collector of Q734 moves in the negative direction which begins turning off Q732 and Q736 and creates a fold back condition See Figure 4 2 Transistor Q736 continues to conduct some current when the supply is limited which drops enough voltage across R734 to keep Q734 biased on Resistor R731 acts to keep the minimum fold back current c...

Page 59: ...onnector Resistor R4100A allows C4100A to precharge in the GND position so that the trace remains on screen when switched to the AC position The effective overall deflection factor of each channel is determined by the VOLTS DIV switch setting The basic deflection factor of the vertical deflection system is 5 mV div A t this setting no attenuators are switched in and the Preamplifier gain is set to...

Page 60: ...Circuit Description 455 A2 B2 Fig 4 3 Attenuator and gain switching sequences 4 8 REV A OCT 1975 ...

Page 61: ...Circuit Description 455 A2 B2 Fig 4 4 Channel switching gates REV A OCT 1975 4 9 ...

Page 62: ...e the Alternate Trace Sync Pulse Amplifier is turned on allowing the pulses to switch the multivibrator In the CHOP mode the multivibrator is turned on and free runs at about 250 kHz As the multivibrator switches states Channel 1 and Channel 2 switching gates are turned on and off ALTERNATE TRACE DISPLAY In this mode the Channel Switching Multivibrator operates as a bistable multivibrator When the...

Page 63: ...sistor Q4394 and on to the Horizontal Module Resistors R4386 and 75 2 line termination Horizontal Module divide the signal at the emitter of Q4384 to the appropriate signal level for the trigger Vertical Output Amplifier Transistors Q4434 Q4444 Q4462 Q4464 Q4466 Q4472 Q4474 and Q4476 compose a common emitter shunt feed back amplifier Shunt feedback transistors Q4462 Q4464 Q4466 and Q4472 Q4474 Q44...

Page 64: ... signals from dc to 50 MHz Input Source Follower Field effect transistors Q2120A and Q2170A are source followers They provide high input impedance for the trigger signals and also provide isolation between the trigger generator circuit and the trigger signal source Diodes CR2123 and CR2173 protect Q2120A and Q2170A Transistors Q2120B and Q2170B are high impedance rela tively constant current sourc...

Page 65: ...HI pins 10 and 11 go HI the sweep is ended and the trigger is reset Pin 13 Ground pin Pin 14 Not connected internally Pin 15 5 volt supply Pin 16 Slope in Connects to the SLOPE switch to determine the slope positive going or negative going from which the trigger signal at pin 2 produces a sweep gate output 5 volts on pin 16 produces a slope trigger output 0 volts on pin 16 produces a slope trigger...

Page 66: ...Fig 4 6 Sweep generator 1C Function block diagram Circuit Description 455 A2 B2 ...

Page 67: ...tage on the Miller circuit Pin 5 Sweep Output This is the sweep output which is applied to the Horizontal Preamplifier This output is switched off and on by Pin 7 Pin 6 Start Level Current Input Sets current levels in the diodes which determine the sweep start voltage Pin 7 Sweep Switch Input Enables the sweep output at pin 5 When pin 7 is LO a sweep output at pin 5 can occur when HI the sweep out...

Page 68: ... mode When this pin is LO ground and pin 4 is HI the sweep is in the single sweep triggering mode Pin 2 Single sweep reset Pushing the SGL SWP push button resets the sweep triggering circuit making it ready for another single sweep to be triggered The READY indicator lights when the single sweep circuit is reset and any sweep in progress is terminated Pin 3 Automatic timing In the automatic trigge...

Page 69: ... a predetermined level within U2790 a holdoff start signal is produced at pin 10 of U2790 The holdoff start signal produces a Reset output signal at pin 9 of U2750 and pin 12 of U2700 that causes the sweep gate out at pin 10 of U2700 and pin 13 of U2790 to go HI and reset the A sweep A t this point the holdoff start goes LO but the Reset pulse stays high until the holdoff ramp at pin 11 of U2750 r...

Page 70: ...the DELAY TIME POS setting In all other po sitions of the B SOURCE switch the B sweep does not start until a trigger signal occurs at pin 2 of U2600 When the B sweep starts a crt unblanking signal is produced at pin 12 of U2690 to unblank the crt When the B sweep reaches a predetermined level within U2690 output current at pin 12 drops unblanking the crt The B sweep stops running down and remains ...

Page 71: ...n setting circuitry The X I0 Magnifier switch is connected to this pin Pin 4 5 volt supply Pin 5 Current source Sets internal current levels Pin 6 Gain See pin 3 Pin 7 Sweep This pin provides the positive going sweep output to the Horizontal Output Amplifier Pin 8 Magnifier registration See pin 1 Pin 9 B Sweep In Input connection for the B sweep signal Pin 10 A Sweep In Input connection for the A ...

Page 72: ...Circuit Description 455 A2 B2 B S2100 S2650 1 9 0 7 3 9 Fig 4 10 Sweep operation in B DLY D mode 4 20 REV A OCT 1975 ...

Page 73: ...ument environment The most convenient time to perform preventive maintenance is usually just prior to recalibra tion The following information in general applies to all three modules in this oscilloscope CLEANING The cabinet helps keep dust out of the instrument interior More frequent cleaning is necessary when the instrument is operated with the cabinet removed The front cover helps keep dust awa...

Page 74: ...brasive cleaners should not be used Crt Clean the light filter and the crt face with a soft lint free cloth dampened with denatured alcohol or a mild detergent and water solution The optional crt mesh filter can be cleaned in the following manner 1 1 Hold filter in vertical position and brush lightly with small soft brush to remove light coatings of dust and lint 2 Greasy residues or dried on dirt...

Page 75: ...ial number 3 A description of the part if electrical include the circuit number 4 4 Tektronix part number SOLDERING TECHNIQUES W A R N I N G I To prevent electrical shock or damage to the instrument always disconnect the instrument from the power source before soldering Use ordinary 60 40 solder and a 15 watt pencil type solder ing iron for most soldering Using a soldering iron with higher wattage...

Page 76: ...r panel away from the mounting brackets while lifting the bottom of the sub panel out of the groove in the cabinet bottom To install the rear panel assembly set the bottom of the subpanel into the groove in the cabinet bottom and in stall the four screws Be sure to reconnect all intercon necting cables Cabinet Bottom Removal NOTE The instrument can be operated with the cabinet bottom removed if ne...

Page 77: ...older Wires are positioned in holder according to color code system see note below N O TE Holder positions are numbered number one is identified with a triangle The wires are EIA color coded to match the numbers on the hol der For example brown stripe for position 1 triangle red stripe for position 2 yellow stripe for position 4 etc 3 Bend grooved part of holder so that connector is inserted into ...

Page 78: ...aft to free recessed portion of shaft from retainer bushing see Fig 5 4 Some shaft knobs may require considerable force to remove Cathode Ray Tube Crt Removal W A R N I N G Handle crt carefully Rough handling or scratch ing can cause crt to implode TO REMOVE CRT 1 Remove Vertical Module see instructions in Vertical Module Maintenance section TO INSTALL CRT 1 Remove horizontal deflection plate lead...

Page 79: ... over main module interface connector and press firm ly in place 2 Connect vertical deflection leads to the two pins on the inward side of vertical circuit board 3 Connect CH 2 cable 4 Secure module with two screws Scale Factor LED Replacement VOLTS DIV scale factor LED s light emitting diodes are pressed into plastic retainer sleeves in front subpanel LED s can be removed by pressing them out wit...

Page 80: ...Maintenance 455 A2 B2 BOTTOM FRAME Fig 5 7 VO LTS DIV switch disassembly 5 8 REV A OCT 1975 ...

Page 81: ...wing list of special considerations before beginning disassembly see Fig 5 7 Substrate or Contact Replacement Considerations 1 Front shield is soldered to front edge of contact strip and must be removed before bottom frame can be removed 2 Substrates and contacts can be removed without remov ing actuator assembly 3 Do not touch contact or substrate surfaces Contamina tion can occur causing intermi...

Page 82: ...e hybrid 1C 1 Insert narrow blade screwdriver between socket and one lip of mounting clamp as shown in Fig 5 8 Rotate screw driver to release clamp from socket To install hybrid 1C 1 Place hybrid 1Con socket so that cutoff corner of ceramic substrate matches indexing key on socket 2 Snap mounting clamp onto socket projections to hold hybrid 1C in place Fig 5 8 Hybrid 1C replacement 5 10 REV A OCT ...

Page 83: ... plug in module straight away from main module interface connector To install module 1 Place module interface plug over main module inter face connector and press firm ly into place 2 Snap POWER switch extension into clip on POWER switch shaft Yokes on plastic clips must be aligned be fore extension can be snapped into place 3 Secure module with two screws Board Locations Figure 5 10 shows the gen...

Page 84: ... contacts To reassemble Timing Switch board 1 Sandwich the switch mechanism between A and B Timing boards as shown A board at front shaft end and B board at rear Install plastic mounting clip in place between boards To separate A and B timing boards Fig 5 11 1 Remove VAR control shaft at coupling using hex wrench 2 Remove four screws holding A and B Timing Switch boards together Separate boards be...

Page 85: ...rd To install board reverse order of above procedure Be care ful not to bend pins when plugging on boards Horizontal Board Removal To remove board 1 1 Remove Trigger board 2 Remove POSITION LEVEL and A TRIGGER HOLD OFF knobs See shaft knob removal procedure in this section 3 Remove screw and nut holding A and B Timing board assembly to Horizontal board 4 Remove screw holding rear of Horizontal boa...

Page 86: ...t board illustration by its circuit number Circuit number locations are identified with a grid index system Component Value Identification Values of capacitors diodes and resistors used in this instru ment are identified by direct numerical values or by a color code scheme Fig 5 12 shows the color code and numer ical value schemes used Semiconductor Lead Configurations Typical semiconductor lead c...

Page 87: ...TORS pF DIPPED TANTALUM VOLTAGE RATING MULTIPLIER TOLERANCE MULTIPLIER TOLERANCE over 10 pF under 10 pF BLACK 0 1 ___ 1 20 2 pF 4 VDC BROWN 1 10 1 10 1 0 1 pF 6 VDC RED 2 102 or 100 2 102 or 100 2 10 VDC ORANGE 3 103 or 1 K 3 103 or 1000 3 15 VDC YELLOW 4 104 or 10 K 4 104 or 10 000 100 9 20 VDC GREEN 5 10s or 100 K A 10s or 100 000 5 0 5 pF 25 VDC BLUE 6 106 or 1 M 106 or 1 000 000 35 VDC VIOLET ...

Page 88: ...d circuit boards and damaged components Isolate Trouble to a Circuit Using the troubleshooting chart Fig 5 13 isolate trouble to a particular circuit The symptom often identifies the defective circuit Trouble appearing in more than one cir cuit can indicate possible power supply problems Power supply tolerance and ripple limits can be checked using Table 5 1 TABLE 5 1 Power Supply Tolerance and Ri...

Page 89: ...ng of circuit operation is essential to troubleshooting circuits using IC s Use care when checking voltages and waveforms around the IC s so that adjacent leads are not shorted together A convenient means of clipping a test probe to the 14 and 16 pin IC s is with an 1C test clip This device also doubles as an extraction tool Typical semi conductor lead configurations are shown at the beginning of ...

Page 90: ...Maintenance 455 A2 B2 Fig 5 13 Troubleshooting chart 5 18 REV A O CT 1975 ...

Page 91: ...Maintenance 455 A2 B2 1907 1 A Fig 5 13 Troubleshooting chart cont REV A OCT 1975 5 19 ...

Page 92: ...rument as follows 1 Obtain a carton of corrugated cardboard having inside dimensions of no less than six inches more than the instrument dimensions this will allow for cushioning Refer to the following table for carton test strength requirements 2 Surround the instrument with polyethylene sheeting to protect the finish of the instrument 3 Cushion the instrument on all sides by tightly packing dunn...

Page 93: ...ry readjustment of other parts of the instrument reset an adjustment only if the tolerance given for that step is not met If it is necessary to reset an ad justment also check any steps listed in the INTERACTION part of the step TEST EQUIPMENT REQUIRED The test equipment listed in Table 6 1 or equivalent is re quired for complete calibration of the oscilloscope Speci fications given for the equipm...

Page 94: ...litude Signal Generator 6 Test Oscilloscope Bandwidth dc to 100 MHz vertical deflection factor 5 mV Z axis compensation adjustment and calibra tion check a Tektronix 465 Oscilloscope with P6065A Probe 7 Cable Length 42 inches impedance 50 2 connectors BNC Signal interconnection a Tektronix part 012 0057 01 8 Termination Impedance 50 2 connectors BNC Signal termination a Tektronix part 011 0049 01 ...

Page 95: ...scilloscope should produce a baseline trace with the controls set as above If not locate and cure the problem before proceeding 4 Adjust INTENSITY FOCUS and ASTIG controls as needed to maintain a well defined display 2 Turn the instrument on and allow at least 5 minutes warm up time before starting the adjustment procedure For best overall accuracy make adjustments in an ambient temperature of 20 ...

Page 96: ...est oscilloscope to display about 4 division positive going pulse High voltage oscillator signal will be visible but should be ignored when making following adjustments d ADJUST Z Axis Compensations C515 see Fig 6 2 and C516 for optimum square corner of pulse on test oscilloscope e Disconnect test oscilloscope A4 TRACE ROTATION a Set A TIM E DIV switch to 1 ms b Position the trace vertically to ce...

Page 97: ...ator adjustment locations b ADJUST Geometry R572 see Fig 6 3 for mini mum bowing of time marks c INTERACTION Between Geometry and Y Axis Adjustments Repeat both adjustments for best geom etry and Y Axis alignment d Disconnect time mark generator A7 CALIBRATOR a Connect digital voltmeter leads to CALIBRATOR output terminals b Connect shorting jumper between TP376 and TP386 see Fig 6 3 If output vol...

Page 98: ...ired The oscilloscope should produce a baseline trace with the controls set as above Adjust INTENSITY and FOCUS controls as needed to maintain a well defined display while making adjustments Refer to Fig 6 4 for vertical adjustment locations B1 CH 1 BALANCE a Center trace on crt screen with CH 1 POSITION control b ADJUST CH 1 Bal R4134 for no trace shift when switching CH 1 VOLTS DIV switch from 2...

Page 99: ...g collar to latch shaft Remove latch and collar g Disconnect test setup B5 HIGH FREQUENCY COMPENSATIONS a Connect 100 kHz positive going fast rise signal from square wave generator to CH 2 input connector via 50 2 cable 10X attenuator and 50 2 termination c Set the generator for a 5 division display d ADJUST C4417 R4417 C4447 R4412 and C4412 see Fig 6 4 for best transient response also R4414 SN B0...

Page 100: ... kHz and adjust output for 6 division display g Increase generator frequency to 50 MHz Display amplitude should be at least 4 2 divisions NOTE I f display amplitude is less than 4 2 divisions repeat step B5 B7 CASCADED BANDWIDTH CHECK a Set VERT MODE to CH 1 b Connect 50 El cable and 50 El termination from CH 2 OUT connector on rear panel to CH 1 input connector 50 El termination at CH 1 connector...

Page 101: ...A PDF Solit DEMO Purchase from www A PDF com to remove the watermark______ K AdjU5tments 455 A2 B2 Fig 64 Vertical adjustment locations REV B MAY 1976 6 9 ...

Page 102: ...AFTER DELAY Set all other controls as desired The oscilloscope should produce a baseline trace with an intensified portion when the controls are set as above Ad just INTENSITY and FOCUS controls as needed to main tain a well defined display while making adjustments C l SWEEP START STOP a Connect 1 ms markers from time mark generator to vertical input via 50 2 cable and 50 2 termination b Set DELAY...

Page 103: ...X I Gain R2923 see Fig 6 6 for one major time mark division c PARTIAL ADJUSTMENT INTERACTION When making partial adjustment of XI Gain also adjust 5 is and 5 ns timing d Set X10 MAG pushbutton in on e Set time generator for 1 ms markers f ADJUST X I0 Gain R2925 see Fig 6 6 for 1 time mark division C3 MAGNIFIER REGISTRATION a Position first time mark to graticule centerline b Set X10 MAG pushbutton...

Page 104: ...for 1 time mark division d Set HORIZ DISPLAY B DLY D DELAY TIME POS 1 00 or less e ADJUST C2684 see Fig 6 5 for 1 time mark division f Set B TIME DIV 05 is pull to unlock knobs DELAY TIME POS 1 50 g Position time mark to graticule centerline h Set DELAY TIME POS control to 8 50 i ADJUST C2784 see Fig 6 5 so that time mark coincides with graticule centerline j PARTIAL ADJUSTMENT INTERACTION When ma...

Page 105: ...sweep starts same distance from grati cule horizontal centerline in both and positions of A SLOPE switch e Set HORIZ DISPLAY B DLY D A TIM E D IV 20 s BSOURCE NORM B LEVEL 0 f ADJUST B Trigger Level Centering R2615 see Fig 6 6 so that sweep starts same distance from grati cule horizontal centerline in both and positions of B SLOPE switch g Disconnect test equipment b Connect 50 kHz reference signa...

Page 106: ... 4 Modifies the 455 to meet the EMC requirements of MIL STD 461A when tested in accordance with the following test methods of MIL STD 462 CE 01 CE 03 CS 01 CS 02 CS 06 RE 02 limited to 1 GHz T RE 04 RS 01 and RS 03 limited to 1 GHz OPTION 5 Adds a tv sync separator to the B2 module to provide stable triggering from composite video waveforms OPTION 7 Permits the 455 to be powered from a dc source o...

Page 107: ...llowing additions and changes are made to the standard 455 to meet the Option 4 specification requirements a Three capacitors added across the power transformer secondary windings Refer to Fig 1 b EMI filter added in series with the ac line cord c The insides of both top and bottom cabinet sections coated with a metallic paint to provide shielding S701 LINE VOLTAGE SELECTOR T700 C707 005 C708 01 x...

Page 108: ...6 01 REPLACEABLE MECHANICAL PARTS Tektronix Part No Serial Model No Eff Dscont Qty 1 2 3 4 5 Name Description Mfr Code Mfr Part Number 119 0376 01 1 FILTER RAD INT 2 X 3A 250V 400 HZ 80009 119 0376 01 210 0586 00 1 NUT PLAIN EXT W 4 40 X 0 25 INCH STL 78189 211 041800 00 390 0449 01 1 COVER SCOPE TOP REPLACES EXISTING PART IN STANDARD INSTRUMENT 80009 390 0449 01 441 1259 01 1 CHASSIS SCOPE MAIN W...

Page 109: ...he source of the signal supplied to the sync separator SPECIFICATION The standard B2 Horizontal Module characteristics are appli cable except as noted below 1 The sync separator provides stable triggering of A Sweep at the line or field rate and stable triggering of B Sweep at the line rate Accepts sync positive or sync negative com posite video 405 to 1201 line 50 or 60 Hz field rate 2 Adds 2 pos...

Page 110: ...s the sensitivity requirements listed in Table 1 Adjust ment of the VAR VOLTS DIV control changes the amplitude of the signal supplied to the sync separator 3 3 Set the A SLOPE switch to negative for sync negative input signals and positive for sync positive input signals NOTE If the A SOURCE switch is set to CH 2 and the CH 2 INVERT button is set to INVERT button in the setting o f the A SLOPE sw...

Page 111: ... stable simultaneous displays of 2 independent video signals that are not gen locked together are not possible ADD Mode Any A SOURCE switch position except LINE may be used The CH 1 and CH 2 trigger signals are picked off before signal addition and therefore are not affected by addition The normal trigger signal is picked off after signal addition and therefore is affected by addition When using t...

Page 112: ...systems 8 If there is too much jitter set the B SOURCE switch to the TV LINE position and adjust the B LEVEL control for a stable display Two Frame A Sweep Cycle If PAL burst blanking is to be checked use the same proce dure as for a one frame A Sweep cycle with the following exceptions 1 1 Set the A TIM E DIV switch to 5 ms instead of 2 ms The CCIR frame starts with the first wide vertical sync p...

Page 113: ...half line and which preceding field has no color burst on its last full line Field 3 lines are 1 through the first half of line 313 Burst starts on line 6 immediately following the last equalizing pulse a half line of video appears on line 23 Field 4 Field which follows a field ending in a full line carrying color burst Field 4 lines are the second half of line 313 through line 625 Color burst for...

Page 114: ... normal B2 Module HORIZ DISPLAY A A and B TIME DIV 20 jus X I0 MAG out off DELAY TIME POS 0 0 A SLOPE SYNC IN B SLOPE IN B2 Module continued A COUPLING TV LINE A SOURCE NORM B SOURCE TV LINE 2 Install 405 50 Program Card into Television Test Generator 3 Connect composite video output from Test Generator to Vertical Module CH 2 input via 75 2 cable and 75 2 termination 4 Set Test Generator Average ...

Page 115: ...be obtained by adjusting the B LEVEL control d Set HORIZ DISPLAY to B DLY D e CHECK Stable display can be obtained by adjusting B LEVEL control Rotate DELAY TIME POS control through vertical blanking interval checking that stable display can be obtained on first 5 pulses Next 6 pulses are equalizing pulses and you may not be able to trigger on them Continue rotating DELAY TIME POS control and chec...

Page 116: ...arator circuit is also supplied to the vertical sync recognizer circuit The vertical sync recog nizer circuit processes the composite sync signal and supplies a vertical sync signal to the A trigger generator for use in the TV Field position of the A COUPLING switch In the AC LF REJ HF REJ and DC positions of the A COUPLING Switch 5 volts is connected to the base of U2232E This holds off U2232E wh...

Page 117: ...te in the non inverting mode The input signal is supplied to both the inverting and non inverting inputs of the operational amplifier through 2 voltage dividers The signal supplied to the non inverting input through voltage divider R2215 and R2217 is about twice the amplitude of the signal supplied to the inverting input through voltage divider R2214 and R2232 Therefore the net gain of the circuit...

Page 118: ...position of the A SLOPE SYNC switch or through CR2251 and C2251 in the positive position of the A SLOPE SYNC switch VERTICAL SYNC RECOGNIZER The negative sync output at the collector of U2218B is applied to the input of the Vertical Sync Recognizer composed of U2218D and U2218C The vertical sync pulse is wider than the horizontal sync pulse Therefore when the vertical sync pulse arrives U2218D is ...

Page 119: ...il loscope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 Composite video signal was supplied from a Tektronix Television Test Signal Generator 067 0601 00 with a 405 50 Program card 067 5001 00 Two divisions of composite video was displayed on the Main Module crt scre...

Page 120: ...Instrument Options 455 A2 B2 o j a O Option 5 Page 12 REV B APR 1977 P A R T IA L A 1 0 T R I E R B O A R D ...

Page 121: ...35 2B CR2247 4E R2105 4E R2175 4B R2243 2E R2265 3D U2218 3D C2163 3A CR2248 3E R2106 4D R2176 5B R2242 2E R2266 4D U2232 2D C2164 4B CR2251 3D R2108 4D R2177 4C R2244 3E R2267 4D C2165 3A CR2257 4D R2109 4D R2212 3B R2245 3E R2268 5E C2174 4B R2114 IB R2213 2C R2246 3E R2612 1C C2177 4B P2000 5D R2115 2B R2214 2D R2247 4E R2712 4C C2213 2C R2117 2B R2215 2D R2248 3D C2215 2D Q2104 5D R2122 2B R22...

Page 122: ...A T E T T U B E P L S T C P L A S T IC T E R M T E R M IN A L P N P A R T N U M B E R T H D T H R E A D P N H P A N H E A D T H K T H IC K PW R P O W E R T N S N T E N S IO N R C P T R E C E P T A C L E T P G T A P P IN G RE S R E S IS T O R T R H T R U S S H E A D R G D R IG ID V V O L T A G E R LF R E L IE F V A R V A R IA B L E R T N R R E T A IN E R W W IT H S C H S O C K E T H E A D W S H R W...

Page 123: ...2 00 RES FXD CMPSN 2 7K OHM 52 0 25W 01121 R2251 315 0273 00 RES FXD CMPSN 27K OHM 52 0 25W 01121 R2252 315 0562 00 RES FXD CMPSN 5 6K OHM 52 0 25W 01121 R2253 315 0473 00 RES FXD CMPSN 47K 0HM 52 0 25W 01121 R2254 315 0243 00 RES FXD CMPSN 24K OHM 52 0 25W 01121 R2255 315 0182 00 RES FXD CMPSN 1 8K OHM 52 0 25W 01121 R2256 315 0103 00 RES FXD CMPSN 1OK 0HM 52 0 25W 01121 R2257 315 0473 00 RES FXD...

Page 124: ... STANDARD INSTRUMENT 4 1 CKT BOARD ASSY TRIGGER SEE AlO EPL SAME AS STANDARD AlO WITH THE ADDITION OF THE FOLLOWING PARTS 5 136 0269 00 2 SOCKET PLUG IN 14 CONTACT LOW CLEARANCE 73803 CS9002 14 6 214 0579 00 3 TERM TEST POINT BRS CD PL 80009 214 0579 00 7 214 2292 02 1 LEVER SWITCH 6 POSN W CONT 80009 214 2292 02 8 214 2292 03 1 LEVER SWITCH 6 POSN W CONT 80009 214 2292 03 390 0449 01 1 COVER SCOP...

Page 125: ... 28 volts Voltage at or power lead with respect to the oscilloscope chassis ground must not exceed 50 volts Temperature The same operating and non operating range as instruments without Option 7 SAFETY CONSIDERATIONS Since Option 7 becomes a part of the instrument safety considerations for the modified oscilloscope are the same as those for the standard oscilloscope FUNCTIONS OF CONTROLS AND CONNE...

Page 126: ... voltage selector switch and dc input connector TABLE 1 Option 7 Power Sources Power Source Oscilloscope Voltage Selectors POWER Switch 115 VAC 116 V AC 230 V AC 232 V AC 12 V DC 12 V DC 24 V DC 24 V DC 1106 24 V DC Option 7 Page 2 REV B AUG 1979 ...

Page 127: ...turned on by the accidental application of 24 volts dc Once the Turn Off Circuit has been activated the inverter stops oper ating and can only be restarted by turning the oscilloscope off and on with the Power Switch S600 DETAILED CIRCUIT DESCRIPTION Start Circuit Closing S600 applies the dc input voltage to C653 CR656 R657 and R656 The initial voltage step is coupled to the base of Q652 through C...

Page 128: ...nd Q622 is cut off Current flow through R622 turns on Q628 Transistor Q628 then provides current to the gate of silicon controlled rectifier Q632 which turns on and shorts out the bridge rectifier Capacitor C612 prevents Q622 from turning on when the inverter is started allowing the power source time to recover after providing the initial start surge During 12 volt dc operation no current flows th...

Page 129: ...volts and from 11 5 to 14 volts a Variable power supply with an adequate current rating in series with items c or d b 1106 Battery Pack 1 An 1106 Battery Pack will operate the oscilloscope for about 4 hours A source voltage of less than 22 volts will turn off Option 7 when in the 24 volt mode Starting current in 24 volt mode is approximately 4 amperes The dc source must be capable of handling this...

Page 130: ...operation of transformer T700 3 TURN OFF LEVEL a Set the Variable power supply output for 21 8 V b Change the dc source to 12 V Operate the oscilloscope b ADJUST Turn Off Level R625 see Fig 4 slowly in the 12 V mode Vary the dc source from 14 V to until the inverter turns off 11 5 V CHECK Oscilloscope should operate over the voltage range 2 INVERTER BALANCE NOTE If you intend to operate the oscill...

Page 131: ...ectly from the 7A13 in the dc coupled mode If a different test oscillo scope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The 455 was powered from a 24 V dc source The INTENSITY control was set for normal trace brightness or about midrange The test oscilloscope was e...

Page 132: ...Instrument Options 455 A2 B2 Option 7 Page 8 REV E AUG 1979 D C TO AC I NVERTER ...

Page 133: ...NO GRID LOC CKT NO GRID LOC CKT NO GRID LOC C6011 CR634 2C F600tt 3E R612 IE R635 3C R667 2B C601 2E CR635 2C F600 i R613 IF R638 3B C602 2E CR636 2C R615 IE R639 3B T600 1C C603 3D CR637 2D 0622 2E R617 2D R653 IE T661 2B C612 IE CR638 3B 0624 2D R622 2D R654 IE C633 ID CR639 3B 0628 2D R624 2E R655 ID TP601 2A C653 IE CR656 ID 0632 2C R625 2E R656 ID C662 1A CR657 ID 0652 ID R626 2F R657 ID VR61...

Page 134: ...3A 125V SWITCH PUSH PUL I0A 250VAC SWITCH PUSH DPDT 40A 250AC PUSH PULL XFMR PWR STPDN T700 REPLACES STANDARD TRANSFORMER XFMR PWR STPDN CKT BOARD ASSY DC INVERTER CKT BOARD ASSY DC INVERTER CKT BOARD ASSY DC INVERTER CAP FXD ELCTLT 750UF 75 10 40V CAP FXD CER DI 0 1UF 80 20 I00V CAP FXD CER DI 0 1UF 80 20 100V CAP FXD ELCTLT 100UF 20 10V CAP FXD ELCTLT I5UF 20 50V CAP FXD ELCTLT 2 7UF 20 50V CAP ...

Page 135: ...F R627 315 0161 00 RES FXD CMPSN 160 OHM 5 0 25W 01121 CB1615 R632 315 0101 00 RES FXD CMPSN 100 OHM 5X 0 25W 01121 CB1015 R633 315 0302 00 RES FXD CMPSN 3K OHM 5 0 25W 01121 CB3025 R634 315 0103 00 RES FXD CMPSN 10K OHM 5 0 25W 01121 CB1035 R635 303 0221 00 RES FXD CMPSN 220 0HM 5 1W 01121 GB2215 R638 303 0221 00 RES FXD CMPSN 220 0HM 5 1W 01121 GB2215 R639 311 1568 00 RES VAR NONWIR 50 OHM 20 0 ...

Page 136: ...211 0510 00 2 SCREW MACHINE 6 32 X 0 375 INCH PNH STL 83385 OBD 4 1 CKT BOARD ASSY DC INVERTER SEE A2 EPL ATTACHING PARTS 5 211 0008 00 3 SCREW MACHINE 4 40 X 0 25 INCH PNH STL 83385 OBD CKT BOARD ASSY INCLUDES 6 136 0252 04 15 SOCKET PIN TERM U W 0 016 0 018 DIA PINS 22526 75060 007 7 1 TRANSFORMER TOROID SEE T661 EPL ATTACHING PARTS 8 212 0011 00 1 SCREW MACHINE 8 32 X 0 750 INCH FLH STL 83385 O...

Page 137: ...CHING PARTS 25 210 0586 00 1 NUT PLAIN EXT W 4 40 X 0 25 INCH STL 78189 26 131 1556 01 BO10100 B057009 1 CONN RCPT ELEC PWR MALE 125VAC 15A 80009 ALSO USED IN OPTION 37 131 1556 03 B057010 1 CONN RCPT ELEC PWR MALE 125VAC 15A 80009 ALSO USED IN OPTION 37 ATTACHING PARTS 27 211 0086 00 2 SCREW MACHINE 4 40 X 0 75 100 DEG FLH STL 83385 28 210 0586 00 2 NUT PLAIN EXT W 4 40 X 0 25 INCH STL 78189 29 1...

Page 138: ...if the cathode ray tube requires replacement use the following procedure DELETE V560 154 0731 00 Crt P31 Phosphor Int Scale ADD V560 154 0731 04 Crt P11 Phosphor Int Scale 1 Follow the crt removal and installation procedure in the maintenance section of this manual 2 After completing crt installation perform Adjust ments procedure in Section 6 and Performance Check in Section 3 of this manual NOV ...

Page 139: ...ll con tact you concerning any change in part number Change information if any is located at the rear of this manual SPECIAL NOTES AND SYMBOLS X000 Part first added at this serial number 00X Part removed after this serial number ITEM NAME In the Parts List an Item Name is separated from the description by a colon Because of space limitations an Item Name may sometimes appear as incomplete For furt...

Page 140: ...ICAL CORPORATION SWITCHCRAFT INC MALLORY CAPACITOR CO DIV OF P R MALLORY AND CO INC DALE ELECTRONICS INC HONEYWELL INC MICRO SWITCH DIV SYLVANIA MINIATURE LIGHTING PRODUCTS INC SUB OF GTE SYLVANIA LIGHT PROD P 0 BOX 128 1201 2ND STREET SOUTH P 0 BOX 5012 13500 N CENTRAL EXPRESSWAY 17070 EAST GALE AVENUE ROUTE 202 ELECTRONICS PARK P 0 BOX 867 19TH AVE SOUTH 5005 E MCDOWELL RD PO BOX 20923 11901 MAD...

Page 141: ...RD ASSY B SWEEP TIMING 80009 670 3551 00 A14 670 3551 01 B011100 B057711 CKT BOARD ASSY B SWEEP TIMING 80009 670 3551 01 A14 670 3551 03 B057712 CKT BOARD ASSY B SWEEP TIMING 80009 670 3551 03 A20 670 3554 00 B010100 B010224 CKT BOARD ASSY VERTICAL 80009 670 3554 00 A20 670 3554 01 B010225 B010399 CKT BOARD ASSY VERTICAL 80009 670 3554 01 A20 670 3554 02 B010400 B010609 CKT BOARD ASSY VERTICAL 800...

Page 142: ...5D9AABZ5U104M C577 281 0775 00 CAP FXD CER DI 0 1UF 20 50V 72982 8005D9AABZ5U104M C582 290 0758 00 CAP FXD ELCTLT 2 2UF 50 10 160V 56289 502D227 C584 290 0159 00 CAP FXD ELCTLT 2UF 50 10 150V 56289 30D205F150BB9 C585 290 0758 00 CAP FXD ELCTLT 2 2UF 50 10 160V 56289 502D227 C601 SEE OPTION SECTION 7 FOR PART NUMBER VALUE C602 SEE OPTION SECTION 7 FOR PART NUMBER VALUE C603 SEE OPTION SECTION 7 FOR...

Page 143: ...7 00 CAP FXD ELCTLT 1UF 20 35V 56289 162D105X0035CD2 C2683 283 0126 00 B010100 B044699 CAP FXD CER DI 82PF 5 1000V 56289 33C180 C2683 281 0816 00 B044700 CAP FXD CER DI 82PF 5 100V 16546 C40A820J C2684 281 0160 00 CAP VAR CER DI 7 25PF 350V 72982 538 011B7 25 C2685 290 0136 00 CAP FXD ELCTLT 2 2UF 20 20V 56289 162D225X0020CD2 C2686 281 0505 00 CAP FXD CER DI 12PF 1 2PF 500V 72982 301 012COG0120K C...

Page 144: ...90 0517 00 C4160 307 1050 01 C4161 307 1050 01 C4162 281 0627 00 B010100 B010749 C4162 281 0557 00 B010750 C4171 281 0207 00 C4172 281 0605 00 BO10100 B044540 C4172 281 0809 00 B044541 C4173 281 0207 00 B010100 B010224 C4173 281 0208 00 B010225 C4191 283 0178 00 CAP FXD CER DI 68PF 10 500V CAP FXD PLSTC 0 019UF 10 600V FURNISHED AS A UNIT WITH A4100 CAP VAR CER DI 1 2 10 2PF 400V FURNISHED AS A UN...

Page 145: ...FXD CER DI 200PF 5 100V 72982 8013T2ADDC1G201J C4273 281 0773 00 CAP FXD CER DI 0 01UF 10 100V 72982 8005H9AADW5R103K C4274 281 0773 00 CAP FXD CER DI 0 01UF 10 100V 72982 8005H9AADW5R103K C4288 281 0791 00 B010100 B010224 CAP FXD CER DI 270PF 10 100V 72982 8035D2AADX5R271K C4288 281 0605 00 B010225 B010609 CAP FXD CER DI 200PF 10 500V 04222 7001 1375 C4288 281 0786 00 B010610 CAP FXD CER DI 150PF...

Page 146: ... 01295 1N4152R CR505 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R CR506 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R CR507 152 0061 00 XB050000 SEMICOND DEVICE SILICON 175V 100MA 07263 FDH2161 CR513 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R CR514 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R CR518 152 0141 02 SEMICOND DEVICE SILICON 30V 50N...

Page 147: ...PART NUMBER VALUE SEE OPTIONSECTION 5 FOR PART NUMBER VALUE SEE OPTIONSECTION 5 FOR PART NUMBER VALUE 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R 152 0141 02 SEMICOND DEVICE SILICON 30V 50NA 01295 1N4152R 152...

Page 148: ...R4436 152 0269 00 XB010225 SEMICOND DEVICE SILICON VAR VCAP 4V 33PF 80009 152 0269 00 CR4437 152 0269 00 SEMICOND DEVICE SILICON VAR VCAP 4V 33PF 80009 152 0269 00 CR4448 152 0322 00 XB010610 SEMICOND DEVICE SILICON 15V HOT CARRIER 50434 5082 2672 CR4449 152 0322 00 XB010610 SEMICOND DEVICE SILICON 15V HOT CARRIER 50434 5082 2672 DL4400 119 0712 00 DELAY LINE ELEC 140 NS 80009 119 0712 00 DS563 15...

Page 149: ...LICON NPN 07263 S032677 Q284 151 0347 00 TRANSISTOR SILICON NPN 56289 2N5551 Q286 151 0350 00 TRANSISTOR SILICON PNP 04713 SPS6700 Q356 151 0190 00 TRANSISTOR SILICON NPN 07263 S032677 Q358 151 0190 00 TRANSISTOR SILICON NPN 07263 S032677 Q376 151 034 2 00 TRANSISTOR SILICON PNP 07263 S035928 Q382 151 0342 00 TRANSISTOR SILICON PNP 07263 S035928 Q386 151 0164 00 TRANSISTOR SILICON PNP 01295 SKB333...

Page 150: ...4 4 321 0189 00 R245 315 0562 00 SEMICOND DVC SE MATCHED PAIR FET TRANSISTOR SILICON PNP TRANSISTOR SILICON NPN SEMICOND DVC SE MATCHED PAIR FET TRANSISTOR SILICON PNP TRANSISTOR SILICON NPN TRANSISTOR SILICON PNP TRANSISTOR SILICON PNP TRANSISTOR SILICON PNP TRANSISTOR SILICON FE DUAL N CHANNEL TRANSISTOR SILICON PNP TRANSISTOR SILICON PNP TRANSISTOR SILICON FE DUAL N CHANNEL TRANSISTOR SILICON N...

Page 151: ... 00 RES VAR NONWIR TRMR 250 OHM 0 5W 02111 63M251T602 R387 321 0179 00 RES FXD FILM 715 OHM 1 0 125W 91637 MFF1816G715R0F R388 321 0071 00 RES FXD FILM 53 6 OHM 1 0 125W 91637 MFF1816G53R60F R502 315 0102 00 RES FXD CMPSN IK OHM 5 0 25W 01121 CB1025 R503 32 1 0176 00 RES FXD FILM 665 OHM 1 0 125W 91637 MFF1816G665R0F R504 315 0122 00 RES FXD CMPSN 1 2K OHM 5 0 25W 01121 CB1225 R505 301 0162 00 RES...

Page 152: ...CTION 7 FOR PART NUMBER VALUE R635 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R638 SEE OPTION SECTION 7 FOR PART NUMBER i VALUE R639 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R653 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R655 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R656 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R657 SEE OPTION SECTION 7 FOR PART NUMBER VALUE R658 SEE OPTION SECTION 7 FOR PA...

Page 153: ... RES FXD CMPSN 75 OHM 5 0 25W 01121 CB7505 R2105 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB1015 R2106 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB1015 R2107 315 0820 00 B010100 B019999 RES FXD CMPSN 82 0HM 5 0 25W 01121 CB8205 R2107 315 0390 00 B020000 RES FXD CMPSN 39 OHM 5 0 25W 01121 CB3905 R2108 315 0271 00 RES FXD CMPSN 270 OHM 5 0 25W 01121 CB2715 R2109 315 0621 00 RES FXD CMPS...

Page 154: ... FOR PART NUMBER 4 VALUE R2253 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2254 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2255 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2256 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2257 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2258 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2261 SEE OPTION SECTION 5 FOR PART NUMBER 4 VALUE R2262 SEE OPTION S...

Page 155: ...505 R2733 315 0750 00 RES FXD CMPSN 75 OHM 5 0 25W 01121 CB7505 R2735 315 0621 00 RES FXD CMPSN 620 OHM 5 0 25W 01121 CB6215 R2736 315 0621 00 RES FXD CMPSN 620 OHM 5 0 25W 01121 CB6215 R2741 315 0684 00 RES FXD CMPSN 680K OHM 5 0 25W 01121 CB6845 R2742 315 0183 00 RES FXD CMPSN 18K OHM 5 0 25W 01121 CB1835 R2743 315 0152 00 RES FXD CMPSN 1 5K OHM 5 0 25W 01121 CB1525 R2744 321 0378 00 RES FXD FIL...

Page 156: ...2 R2916 311 1224 00 B010700 RES VAR NONWIR 500 OHM 20 0 50W 32997 3386F T04 501 R2917 315 0201 00 B010100 B010699 RES FXD CMPSN 200 OHM 5 0 25W 01121 CB2015 R2917 315 0820 00 B010700 RES FXD CMPSN 82 OHM 5 0 25W 01121 CB8205 R2919 307 0106 00 RES FXD CMPSN 4 7 OHM 5 0 25W 01121 CB47G5 R2920 315 0753 00 RES FXD CMPSN 75K OHM 5 0 25W 01121 CB7535 R2921 315 0154 00 RES FXD CMPSN 150K OHM 5 0 25W 0112...

Page 157: ...SHED AS A PART OF A4100 FURNISHED AS A PART OF A4100 FURNISHED AS A PART OF A4100 FURNISHED AS A PART OF A4100 FURNISHED AS A PART OF A4100 FURNISHED AS A PART OF A4100 91637 MFF1816D75001B 01121 CB3915 317 0430 00 RES FXD CMPSN 43 OHM 5 0 125W 01121 BB4305 315 0682 00 RES FXD CMPSN 6 8K OHM 5 0 25W 01121 CB6825 315 0333 00 RES FXD CMPSN 33K OHM 5 0 25W 01121 CB3335 315 0331 00 RES FXD CMPSN 330 O...

Page 158: ...16 315 0623 00 RES FXD CMPSN 62K OHM 5 0 25W 01121 R4217 315 0331 00 RES FXD CMPSN 330 OHM 5 0 25W 01121 R4221 317 0681 00 RES FXD CMPSN 680 OHM 5 0 125W 01121 R4222 321 0481 00 RES FXD FILM 1M OHM 1 0 125W 24546 R4223 315 0474 00 B010100 B010399 RES FXD CMPSN 470K OHM 5 0 25W 01121 R4223 315 0224 00 B010400 B033499 RES FXD CMPSN 220K OHM 5 0 25W 01121 R4223 315 0474 00 B033500 RES FXD CMPSN 470K ...

Page 159: ...25W 01121 CB1005 R4312 321 0147 00 RES FXD FILM 332 OHM 1 0 125W 91637 MFF1816G332R0F R4313 321 0175 00 RES FXD FILM 649 OHM 1 0 125W 91637 MFF1816G649R0F R4314 321 0141 00 RES FXD FILM 287 OHM 1 0 125W 91637 MFF1816G287ROF R4317 321 0156 00 RES FXD FILM 412 OHM 1 0 125W 91637 MFF1816G412R0F R4318 321 0142 00 RES FXD FILM 294 OHM 1 0 125W 91637 MFF1816G294ROF R4322 321 0147 00 RES FXD FILM 332 OHM...

Page 160: ...0121 00 B030000 RES FXD CMPSN 120 OHM 5 0 25W 01121 CBl215 R4435 321 0149 00 RES FXD FILM 348 OHM 1 0 125W 91637 MFF1816G348R0F R4436 311 1563 00 B010100 B029999 RES VAR NONWIR IK OHM 20 0 50W 73138 91 85 0 R4436 311 1749 00 B030000 RES VAR N0NWIR TRMR 1 5K OHM 0 75W 73138 91 97 0 R4437 321 0143 00 RES FXD FILM 301 OHM 1 0 125W 91637 MFF1816G301ROF R4442 321 0085 00 RES FXD FILM 75 OHM 1 0 125W 91...

Page 161: ...IC 80009 105 0681 00 S4200B S4200B FURNISHED AS A UNIT WITH S4262 S4240 260 1445 01 SWITCH PUSH 1 STA 2 POLE W O MTG EARS 80009 260 1445 01 S4243 FURNISHED AS A UNIT WITH R4243 S4262 FURNISHED AS A UNIT WITH S4200B S4330 260 1424 01 SWITCH PUSH 5 STA 2 POLE INTERLOCK 80009 260 1424 01 S4380 260 1767 00 SWITCH PUSH 1 BUTTON 71590 OBD T550 120 0984 00 XFMR PWR SDN SU HIGH VOLTAGE 80009 120 0984 00 T...

Page 162: ...2 0247 00 VR612 SEE OPTION SECTION 7 FOR PART NUMBER VALUE VR613 SEE OPTION SECTION 7 FOR PART NUMBER VALUE VR632 SEE OPTION SECTION 7 FOR PART NUMBER VALUE VR722 152 0411 00 SEMICOND DEVICE ZENER 0 25W 9V 5 04713 SZ12483K VR725 152 0265 00 SEMICOND DEVICE ZENER 0 4W 24V 5 04713 SZG35009K8 VR736 152 0229 00 SEMICOND DEVICE ZENER 1W 39V 5 04713 1N3034B VR738 152 0243 00 SEMICOND DEVICE ZENER 0 4W 1...

Page 163: ...ng device heat sink S Switch or contactor circuit board etc heat radiator etc T Transformer AT Attenuator fixed or variable HR Heater TC Thermocouple B Motor HY Hybrid circuit TP Test point BT Battery J Connector stationary portion U Assembly inseparable or non repairable C Capacitor fixed or variable K Relay integrated circuit etc CB Circuit breaker L Inductor fixed or variable V Electron tube CR...

Page 164: ...455 A2 B2 LARGE 5 INTEGRATED CIRCUITS Fig 9 1 Semiconductor lead identification REV C MAY 1978 ...

Page 165: ...R 7 2 f 9 7 3 4 Q 7 3 6 3 2 V 5 V u t s l R E G SV R E C T IF IE R C R 7 4 I V r e g u l a t o r U 7 2 2 B 0 7 4 4 9 7 4 2 9 7 4 6 5 V R E G U L A T O R U 7 6 2 0 7 6 6 Q 7 64 Q 7 6 8 5 V u n r e g SWEEP S W E E P 4 5 5 M A IN M OD ULE 1 4 0 7 4 7 R E V E KJOV ...

Page 166: ...l 07 7 REV b NOV C M1 4 5 5 MAIN MODULE BLOCK DIAGRAM ...

Page 167: ...4 5 5 A 2 B 2 AS VERTICAL MODULE IR07 R8 RE V B M O ...

Page 168: ...I S 0 7 9 8 R E V B NOV IRT7 A2 VERTICAL MODULE BLOCK DIAGRAM ...

Page 169: ...REV B NOV 1977 Fig 9 2 A1 Partial Interface board compo ...

Page 170: ...455 A2 B2 Sea Parts List for serial number ranges tial Interface board component locations ...

Page 171: ... 3G 0246 4G Q274 31 Q284 31 Q286 41 Q356 4B Q358 4A Q376 91 0382 10J Q386 10J Q514 5B Q518 5B 0524 6A Q526 6B Q544 5D CKT GRID NO LOC Q548 8F Q552 10D Q556 10B R232 3H R233 4H R235 3G R236 3G R241 3G R242 3H R243 4G R244 4G R245 51 R246 4G R247 4H R272 31 R273 41 R275 4J R276 2G R282 31 R283 41 R284 41 R285 31 R286 41 R287 4H R288 4J R352 4B R353 4B R354 4B R356 3C R358 4A R372 101 R373 101 R374 1...

Page 172: ...7 0 C O U P L IN G A T R IG G E R INPUT Q 2 I 7 0 A B A L T TRACE S Y N C PULSE CHANNEL I OR X S IG N A L 2 6 0 0 SLOPE 5V 1L x B TRIGGER G E N E R A T O R U 2 6 0 0 5V L E V E L B SWEEP GATE R 2 G I2 5V S 2 7 0 0 S L O P E RESET 5V SV L E V E L A T R IG G E R G E N E R A T O R U 2 7 0 0 R 2 7 I 2 S V A SWEEP GATE LOGIC GATE SWEEP CONTROL U 2 7 5 0 S 2 7 S O T R IG MODE DEL START A M P L U 2 7 4 i...

Page 173: ...v I m B 2 HORIZONTAL MODULE BLOCK DIAGRAM ...

Page 174: ...455 A2 B2 REV B NOV 1977 Fig 9 3 A 1 Partial Interface board component locations ...

Page 175: ... I i w m fB5BTK C768 s C738 0 IVB76 C748 f fRM2 i o QRS ffl g _ R5Hj p R5 5 ho H F 2 CS72 h I 5 IIIUPCB x 32 JU M P E R JwiltR J ___ m f cU l c r _____ 5 R571 _ SFES i _ J _ I U r P5S J_______________l _ 1 9 0 7 8 3 A ns ...

Page 176: ...1 4E C735 2A CR741 3C J4 R738 3C R762 2C U722 IB C738 7G CR744 2B J736 5A R721 4A R740 4E R763 2C U762 ID C741 3D CR748 4F J746 5C R722 2A R741 2C R767 2E VR722 1A C743 2B CR762 IE J768 5D R723 2A R742 2C R768 5E VR725 2b C748 7G CR763 IE J780 5K R725 2B R743 IB R769 ID VR736 6K C761 4D CR764 IE R728 3A R745 3C R772 3E VR738 3B C763 2D CR765 IE Q732 3B R731 4A R746 3C R773 2E VR749 8H C768 6G CR76...

Page 177: ... a Tektronix 7000 series oscilloscope equipped with readout 7B series Time Base 7A13 Diffential Com parator and a 10X probe The offset voltages were read directly from the 7A13 in the dc coupled mode If a different test oscilloscope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as ...

Page 178: ...ry as intal i level Ibrator iial Com oscope ar slightly M s L T 55 0 V 10 8 V 7 100 4 S 5 A 2 B 2 4 5 5 M AIN MODULE 1507 101 REV B NOV 477 H O R I Z O N T A L A M P L I F I E R G A T E fj C A L I B R A T O R ...

Page 179: ... probe The offset voltages were read directly from the 7A13 in the dc coupled mode If a different test oscil loscope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The 455 INTENSITY control was set to midrange The Horizontal Module A sweep was free running A INTEN mode...

Page 180: ...BEAM FINDER TO R4435 R4F S VERT MODULE D IA 6 BEAM FINDER T 0 R2R 3fa R2R37 HORI7 MODULE D IA 6 k 4 S 5 A 2 B 2 4 S 5 M A IN MODULE 1 1 0 7 1 0 3 R feV O M A ...

Page 181: ... 3 BACK OF DIAGRAM 4 BACK OF DIAGRAM 6 BACK OF DIAGRAM 5 BACK OF DIAGRAMS BACK OF DIAGRAM 6 rCS8E T 7 2 2 m F a 2 m F C584 R 5V TO R S4I 1S V TO M A IN M O D U LE i f J2 BII SEE PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES OF PARTS MARKED WITH GREY OUTLINE HOT 102 R 6 V O M A Y IR T 8 tIo 5 f cs s R563B 20M J 4 B 2 RSV TO HORIT MODULE D IA G R 5 V V E R T DIAG TO P 4 B 2 MODULE PART OF C...

Page 182: ...455 A2 B2 Fig 9 4 A20 Vertical board component locations SN B0110 ...

Page 183: ...9 4 A20 Vertical board component locations SN B011030 UP See Parts List for serial number ranges On back of board 1 Shown on exploded view REV C FEB 1979 ...

Page 184: ...335 5C R4212 4J R4337 5C S4380 3D C4336 5B Q4114 3J R4213 4J R4361 3E C4363 3F Q4116 3J R4215 4J R4362 3E T4335 5B C4364 2F Q4124 31 R4216 4J R4363 3F C4365 3E Q4160 4G R4217 4J R4364 2F TP4363 2F C4373 4F Q4214 3J R4221 41 R4365 3E TP4373 4E C4375 4E Q4216 3J R 4222t R4366 2F C4386 5E Q4224 4H R42231 R4371 3E C4410 ID Q4282 4D R4225 5H R4372 4E C4411 IE Q4316 4B R4226 4H R4373 4F C4412 2D Q4326 4...

Page 185: ...455 A2 S2 4 5 5 M A fN M O DULE ...

Page 186: ...a g SW EEP OUT TO Q27 4 DIAG a o r b g a t e TO C R 3 S I CR 3S2 OlAG 2 B E A M FINDER FROM S5O0 d ia g a x y TO J 4 B I LINE TRIG G ER FRO M R772 R5V FROM R 565 DIAG U N BLANKING TO R50G I AG NORM TRIGGER T 7 7 1 T R IG VIEW 7 7 SIG NAL T G D _ _ v _ T R IG V IE W fe s ig n a l V fc C H I X SIG N AL CH 1 TRIGGER CH Z TRIGGER R S V FROM R 58S OlAG i n t e n s it y FROM R5GGA D IA G VOLTAGE CONDITI...

Page 187: ...455 A2 B2 Fig 9 5 A20 Vertical board component location SN B010100 B REV C NOV 1977 ...

Page 188: ...i tfj4242 S 5 T O 1 8 4 1 k 1 l l l l l l l S 14281 C4200H 4 m 6gS C4200D C42Q0C 1 I J420O C4262 S4200B l l f l l l l l l 842004 M L O 4262 1 1 1 i V xx lr V xxxxxx A xxxxxxxv xxxxxxS S c w X Nxxxx fV V V Xxxxxxxxx il fc XXXXXXXXXXXXVXXXVXXXXXXXXXXXXXXXXXVwXXXXXXXXXXXXXXXXXXXXX VXXXXXXXXXXXXXXXN i 1907 79A nt location SN B010100 B011029 Sae Parts List for serial number ranges ...

Page 189: ... 3J R4324 4B R4474 2C C4273 3H J4100 2L R4144 2F R4327 4C R4475 2B C4274 3J J4110 3J R4145 3G R4328 5B R4476 2B C4288 3B J4140 2E R4154 2E R4332 5B R4479 2C C4292 5H J4200 5L R4156 2F R4333 5B C4316 4B J4240 5D R4170 3H R4334 5C RT4437 2D C4333 6B J4287 3B R4171 41 R4335 5B RT4448 2E C4335 5B R4172 4H R4336 5B C4336 5B L4128 3H R4173 3H R4337 5C S4100A 2J C4363 3F L4228 4H R4174 3F R4338 SC S4100B...

Page 190: ...shown on this schematic diagram were measured with a Tektronix DM 501 Digital Multimeter Voltage measurements can vary as much as 20 A2 controls were set as follows VERT MODE CHI CH 1 CH 2 AC GND DC GND CH 1 POSITION Trace or spot centered ...

Page 191: ...V O L T S 01 ...

Page 192: ...V O LT S Q IV S H O W N IN 57 H V ...

Page 193: ...100 2A C2115 2B CR2104 5D Q2122 1C R2114 IB R2167 4B S2120 1A C2124 1C CR2108 4D Q2170 4B R2115 2B R2172 4B S2150 5A C2127 2C CR2123 2B Q2172 4C R2117 2B R2174 4C S2170 4A C2134 2B CR2173 5B R2122 2B R2175 4B S2600 2C C2135 2B R2100 4D R2124 1C R2176 4C TP2125 TP2175 2E 4E C2163 3A P2000 5D R2101 5E R2125 IB R2177 4C C2164 4B R2105 4E R2126 2C R2212 3B C2165 3A Q2104 5D R2106 4D R2127 2C R2612 1C ...

Page 194: ...57 R2103 C2154 C2156 P200 C U Z E L l V V v V W v v s v Hr rc m S2706 y V sv V W v N Fig 9 7A A12 HORIZONTAL X BOARD CKT NO GF LC C2154 2B C2155 2B C2156 2B C2157 2B C2911 2H C2913 1H C2917 2G C2919 2H C2941 2H P2000 2D REV D JAN 1980 ...

Page 195: ... R2919 21 R2943 21 C2156 2B R2713 2F R2922 3G R2944 21 C2157 2B R2102 2D R2714 2F R2923 3G C2911 2H R2103 2D R2715 2F R2927 3G S2700 4B C2913 1H R2104 2C R27771 R2925 2G S2920t C2917 2G R2154 2B R2911 21 R2932 3G C2919 2H R2155 IB R2912 IF R2933 3G TP2697 21 C2941 2H R2156 2B R2913t R2934 3G R2157 2C R2914 2F R2936 3G U2900 2H P2000 2D R2613 2F R2915 IF R2937 3G R2916 2H See Parts List for serial ...

Page 196: ...ffset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The Main Module calibrator signal was applied to the CH 1 externally on the slope from the calibrator signal A2 controls were set as follows except as noted below VERT MODE CH 1 VOLTS DIV CH 1 AC GND DC CH 2 AC GND DC CH 1 POSITION CH 1 5 mV DC GND Trace or spot centered input through a compe...

Page 197: ...MPONENT LOCATION ILLUSTRATIONS A L T T R A C E S Y N C P U LSE F R O M P 2 A R H O R IZ M O D U LE A1 INTERFACE PARTIAL A1 INTERFACE PARTIAL A20 VERTICAL LATE A20 VERTICAL EARLY A10 TRIGGER A ll SWEEP A12 HORIZONTAL A13 A TIMING A14 B TIMING BACK OF A2 BLOCK DIAG BACK OF B2 BLOCK DIAG BACK OF DIAGRAM 2 BACK OF DIAGRAM 3 BACK OF DIAGRAM 4 BACK OF DIAGRAM 5 BACK OF DIAGRAM 5 BACK OF DIAGRAM 6 BACK O...

Page 198: ... U 1 X SlCjMAt TO P2 A4 h o p it MODULE SEE PARTS LIST FOR SEMICONDUCTOR TYPES f SWITCHING ...

Page 199: ...ent locations SN B044420 up FOR A12 BOARD BELOW SN B044420 SEE BACK OF DIAGRAM 4 CKT NO GRID LOC CKT NO GRID LOC CKT GRID NO LOC CKT NO GRID LOC CKT NO GRID LOC C2154 2B R2102 2D R2777t R2932 3H U2900 3H C2155 2C R2103 2D R2911 21 R2933 31 C2156 2B R2104 2D R2912 2F R2934 21 W2700 4E C2157 2B R2154 2B R2913f R2936 31 C2911 2H R2155 2B R2914 3G R2937 21 C2913 2H R2156 2B R2915 2F R2942 31 C2917 2H ...

Page 200: ...CR2689 21 CR2793 C2681 4H C2764 2C CR2690 3E CR2795 C2683 21 C2765 2B CR2691t CR2804 C2684 21 C2766 2C CR2692 3F C2685 51 C2767 2B CR2694 3F DS2755 C2686 31 C2781 4G CR2695 3F DS2756 C2687f C2783 4F CR2741 3G DS2920 C2688 41 C2784 4E CR2742 3F DS3129 C2697 31 C2785 4G CR2743 2F C2698 6H C2786 4G CR2756 4E J2100 C2716 4D C2788 4G CR2757 4E J2200 C2717 3E C27912 3G CR2759 4E J2600 C2718 3D C2797f CR...

Page 201: ...ID LOC CKT NO GRID LOC CKT NO GRID LOC CKT GRID NO LOC CKT NO GRID LOC R265S 4C R2722 4E R2762 3E R2795 3G U2700 4D R2656 4B R2724 4E R2763 2D R2797 5F U2740 2F R2657 SB R2725 4D R2764 2C R2798 SF U2750 3D R2680 41 R2732 SE R2765 2C R2802 3F U2790 4F R2681 4H R2733 5E R2766 2C R2804 31 R2682 51 R2735 5E R2767 2C R2920 2A R2683 4J R2736 5E R2774 3C R2921 2A R2684 41 R2741 2G R2776 2E R3129 2A R2685...

Page 202: ...fset voltages were read directly from the 7A13 in the dc coupled mode If a different test oscilloscope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The Main Module calibrator signal was applied to the CH 1 input through a compensated 10X probe The test oscilloscope w...

Page 203: ...13 t _ 12 IE _ T ____ i II II 10 10 _ _ r n _ ____ i 9 3 _JT t_ J 8 8 t _ 7 7 _JT H _ 6 6 _ j r n _ 5 5 1 4 4 _ r t _ J 3 3 _ T t _ 2 2 t t 1 1 _ j r t _ r ALT TRACE SYNC PULSE TO 0433 4 DIAG S NORM TRIGGER FROM R4386 DIAG CH I X SIGNAL FROM R4JT4 DIAG CH I TRIGGER FROM R4I75 DIAG CH 2 TRIGGER FROM R4E76 DIAG 95V X Y TO CR42I6 DIAG 4 5 5 A 2 B 2 A 2 VERTICAL MODULE ...

Page 204: ...IG VIEW POWER TO P l A T P2 AS H O R IZ MODULE S E E P A R T S L IS T F O R E A R L IE R V A L U E S A N D S E R IA L N U M B E R r a n g e s o f p a r t s o u t l i n e d o r D E P IC T E D IN G R E Y Dl SEE PARTS LIST FOR SEMICONDUCTOR TYPES 1907 109 RftV F VERTICAL OUTPUT AMPLIFIER INTERFACE CONNECTOR ...

Page 205: ... GRID LOC CKT NO GRID LOC C3122 3B R3114 2B R3134 3C C3125A 2A R3115 2B R3135 3D C3125B 3A R3122 3C R3136 3C C3125C 2E R3123 3B R3137 3D R3124 3B P3000 ID R312S 2B VR3128 2B P3100 IB R3127 2B R3132 3C R3113 2B R3133 3D REV B NOV 1977 ...

Page 206: ...rd component locations CKT NO GRID LOC CKT NO GRID LOC CKT NO GRID LOC C3242 3E R3213 2B R3224 3B C3125D 3D R3214 2B R3225 3B C3125E 3E R3215 2B R3236 3B R3216 2B R3237 3B P3200 4D R3217 IB R3238 3B R3222 3B R3242 3E R3212 2B R3223 3B ...

Page 207: ...A 1 4 B T I M I N G S W I T C H B O A R D A13 A TIM ING SWITCH BOARD 1 9 0 7 3 ...

Page 208: ...or and a 10X probe The offset voltages were read directly from the 7A13 in the dc coupled mode If a different test oscilloscope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The Main Module calibrator signal was applied to the CH I vertical input through a compensated...

Page 209: ...4 5 5 A 2 B 2 B 2 h o r iz o n t a l m o d u l e R o i I 11 R E V C NOV IS77 ...

Page 210: ...3 AIO TRIGGER BACK OF DIAGRAM 4 A ll SWEEP A12 HORIZONTAL A13 A TIM ING A14 B TIM ING BACK OF DIAGRAM 5 BACK OF DIAGRAM 5 BACK OF DIAGRAM 6 BACK OF DIAGRAM 6 SEE PARTS LIST FOR EARLIER VALUES AND SERIAL NUMBER RANGES OF PARTS OUTLINED OR DEPICTED IN GREY 5 Y SEE PARTS LIST FOR S E M IC O N D U C T O R TYPES I P A R T IA L AIO T R IG G E R BOARD 1 R07 III R E V C NOV m 7 t r ig g e r in p u t 3 ...

Page 211: ... the 7A13 in the dc coupled mode If a different test oscillo scope system is used the ac coupled mode may have to be used due to high dc offset voltages This can cause some waveforms to appear slightly different Waveforms may vary as much as 20 The Main Module calibrator signal was applied to the CH 1 vertical input through a compensated 10X probe The Vertical Module CH 1 VO LTS DIV switch was set...

Page 212: ...455 A2 B2 0 0 V 2 _______________ 20 mV 50C 1 n5 i d 5 30 m j _ 500 1 n J 1 0 3 V 0 V 3 0 V 1907 117 ...

Page 213: ......

Page 214: ......

Page 215: ...D IA G M F IN 12956 s 3 B E A M F IN D E R TO R 2 9 5 6 R 2 9 3 7 D IA G X Y F R O M P 3 0 0 0 A L IN E T R IG G E R TO 5 2 1 5 0 D IA G y 3 U N B L A N K I NG F R O M U 2 6 9 0 P IN 12 U 2 7 9 0 P I N 12 D IA G g TO R 2 7 J 5 R 2 7 3 6 T O R 2 7 2 4 R 2 7 2 5 T R IG V IE W P O W E R D IA G 6 IN T E N S IT Y TO R 2 6 S 2 R 2 6 5 3 2 7 5 6 4 5v TO R 2 7 5 6 FOR COMPONENT LOCATION ILLUSTRATIONS A1 I...

Page 216: ...A B T IM IN G S W IT C H INTERFACE C O N N E C T O R ...

Page 217: ... T FR F R A M E o r F R O N T O D O U T S ID E D IA M E T E R S S T S T A IN L E S S S T E E L B R S B R A S S F S T N R F A S T E N E R O V H O V A L H E A D S T L S T E E L B R Z B R O N Z E F T F O O T P H B R Z P H O S P H O R B R O N Z E S W S W IT C H B S H G B U S H IN G F X D F IX E D PL P L A IN o r P L A T E T T U B E C A B C A B IN E T G S K T G A S K E T P L S T C P L A S T IC T E R M ...

Page 218: ...70276 ALLEN MFG CO P 0 DRAWER 570 HARTFORD CT 06101 70485 ATLANTIC INDIA RUBBER WORKS INC 571 W POLK ST CHICAGO IL 60607 71279 CAMBRIDGE THERMIONIC CORP 445 CONCORD AVE CAMBRIDGE MA 02138 71400 BUSSMAN MFG DIVISION OF MCGRAW EDISON CO 2536 W UNIVERSITY ST ST LOUIS MO 63107 71590 CENTRALAB ELECTRONICS DIV OF GLOBE UNION INC P 0 BOX 858 FORT DODGE LA 50501 71785 TRW CINCH CONNECTORS 1501 MORSE AVENU...

Page 219: ...0 25 348 0004 00 1 GROMMET RUBBER 0 281 ID X 0 563 INCH OD 70485 763 26 386 3305 00 1 SUPPORT CRT REAR 80009 386 3305 00 334 1951 01 1 MARKER IDENT MARKED WARNING 80009 334 1951 01 27 337 2124 00 B010100 B057959 1 SHIELD CRT 80009 337 2124 00 337 2124 03 B057960 1 SHIELD CRT 80009 337 2124 03 343 0213 00 XB057960 1 CLAMP LOOP PRESS MT PLASTIC 80009 343 0213 00 334 2859 00 XB057960 1 MARKER IDENT M...

Page 220: ... A S E L E C E Q P T P O W E R S U P P L Y 8 0 0 0 9 4 4 1 1 2 6 0 0 0 A T T A C H I N G P A R T S 6 4 2 1 1 0 5 3 4 0 0 4 S C R A S S E M W S H R 6 3 2 X 0 3 1 2 I N C H P N H S T L 8 3 3 8 5 O B D 65 2 1 0 0 5 8 6 0 0 2 N U T P L A S S E M W A 4 4 0 X 0 2 5 S T L C D PL 8 3 3 8 5 2 1 1 0 4 1 8 0 0 0 0 6 6 3 4 2 0 2 9 7 0 0 1 I N S U L A T O R F I L M H I G H V O L T A G E P O W E R S U P P L Y 8...

Page 221: ...2 5 2 6 4 6 2 3 1 1 0 5 3 5 2 0 1 9 9 0 0 3 C O N N B O D Y P L E L 3 W I R E B L A C K 8 0 0 0 9 3 5 2 0 1 9 9 0 0 1 0 6 3 4 8 0 4 3 4 0 0 4 F O O T C A B I N E T R E A R C O V E R 8 0 0 0 9 3 4 8 0 4 3 4 0 0 1 0 7 3 3 3 2 0 7 3 0 0 1 P A N E L R E A R 4 5 5 8 0 0 0 9 3 3 3 2 0 7 3 0 0 3 3 3 2 0 7 3 0 2 1 P A N E L R E A R 8 0 0 0 9 3 3 3 2 0 7 3 0 2 F O R O P T I O N 3 O N L Y 3 3 3 2 0 7 3 0 3 ...

Page 222: ... 1 F U S E H O L D E R W H A R D W A R E 7 5 9 1 5 3 4 5 0 0 2 1 3 5 3 3 3 2 0 9 1 0 0 1 P A N E L R E A R P O W E R I N T A K E 8 0 0 0 9 3 3 3 2 0 9 1 0 0 1 3 6 1 T R A N S F O R M E R P O W E R S E E T 7 0 0 EP L A T T A C H I N G P A R T S 1 3 7 2 1 2 0 5 2 2 0 0 4 S C R E W M A C H I N E 1 0 3 2 X 2 5 0 H E X H D S T L 8 3 3 8 5 O B D 1 3 8 2 1 0 0 8 1 2 0 0 4 W A S H E R N O N M E T A L 1 0 ...

Page 223: ... ...

Page 224: ...455 A 2 B 2 ...

Page 225: ... 455 A2 B2 ...

Page 226: ......

Page 227: ...743 OBD 18 210 1039 00 2 WASHER LOCK INT 0 521 ID X 0 625 INCH OD 24931 OBD 19 352 0419 00 4 HOLDER LED 0 131 ID X 0 205 INCH L PLSTC 80009 352 0419 00 20 342 0251 00 BO10100 B045098 1 INSULATOR VERTICAL 80009 342 0251 00 342 0366 00 B045099 1 INSULATOR PLATE FRONT PANEL VERTICAL 80009 342 0366 00 334 3448 00 XB057560 1 MARKER IDENT MARKED NOTICE 80009 334 3448 00 21 337 2127 00 BO1 0100 B033658 2...

Page 228: ...14 1126 01 2 SPRING FLAT GREEN COLORED 80009 214 1126 01 59 214 1752 00 2 ROLLER DETENT 80009 214 1752 00 60 401 0339 00 1 BEARING CAM SW REAR SNAP IN 80009 401 0339 00 61 210 0406 00 2 NUT PLAIN HEX 4 40 X 0 188 INCH BRS 73743 2X12161 402 62 426 1241 00 1 FRAME SECT SW T W BEARING 80009 426 1241 00 63 175 0829 00 FT WIRE ELECTRICAL 6 WIRE RIBBON 08261 SS 0626 710610C 64 131 0707 00 6 CONNECTOR TE...

Page 229: ...0383 00 87 1 SWITCH PUSH TRIG VIEWtSEE S4380 EPL 88 361 0690 00 2 SPACER PB SW 375 INCH HIGH PLSTC 80009 361 0690 00 89 352 0331 00 2 LAMPHOLDER 80009 352 0331 00 90 1 MICROCIRCUIT W HEAT SINK SEE U4160 EPL ATTACHING PARTS 91 343 0519 00 1 RTNR HEAT SINK 2 01 X 1 20 IBRS BLACK 80009 343 0519 00 92 380 0421 00 1 HSG CONTACT SET 1 940 X 1 440 W CONT 80009 380 0421 00 93 441 1261 00 1 CHAS ELEC EQPT ...

Page 230: ... OD 0 257 ID 0 293 L 80009 358 0569 00 17 358 0378 01 4 BUSHING SLEEVE 0 250 OD X 0 131 ID PRESS MT 80009 358 0378 01 18 358 0550 00 4 BUSHING SHAFT 0 15 ID X 0 3INCH OD PLSTC 80009 358 0550 00 19 333 1995 00 B010100 B046869 1 PANEL FRONT HORIZONTAL 80009 333 1995 00 333 1995 02 B046870 1 PANEL FRONT HORIZONTAL 80009 333 1995 02 ATTACHING PARTS 20 213 0120 00 1 SCR TPG THD FOR 2 32 X 0 250 INCH PN...

Page 231: ... SW PLASTIC 80009 361 0608 00 58 1 SW LEVER W CONT A SOURCE SEE S2150 EPL ATTACHING PARTS 59 211 0152 00 B010100 B022799 1 SCR ASSEM WSHR 4 40 X 0 625 INCH PNH BRS 83385 OBD 211 0240 00 B022800 1 SCR ASSEM WSHR 4 40 X 0 688 PNH STL 78189 OBD 60 210 0551 00 1 NUT PLAIN HEX 4 40 X 0 25 INCH STL 83385 OBD 61 1 SW LEVER W CONT A COUPLING SEE S2170 EPL 62 351 0448 01 2 GUIDE SWITCH W SPRING AND ROLLER ...

Page 232: ...93 00 1 BUS CONDUCTOR 2 WIRE BLACR 00779 530153 2 92 136 0252 07 27 SOCRET PIN C0NN W 0 DIMPLE 22526 75060 012 93 136 0260 02 5 SRT PL IN ELER MICROCIRCUIT 16 DIP LOW CLE 71785 133 51 92 008 94 136 0514 00 1 SRT PL IN ELEC MICROCIRCUIT 8 DIP 73803 CS9002 8 95 214 0579 00 8 TERM TEST POINT BRS CD PL 80009 214 0579 00 96 1 SW PUSH HORIZONTAL DISPLAY SEE S2650 EPL 97 361 0542 00 4 SPACER SWITCH PLAST...

Page 233: ......

Page 234: ...455 A2 B2 ...

Page 235: ...R HDL LATCH 2 12 DIA X 0 7 ACETAL 80009 200 0602 00 6 367 0210 00 1 HANDLE CARRYING ATTACHING PARTS 80009 367 0210 00 7 213 0227 00 4 SCR TPG THD FOR 6 32 X 0 50 DEG FLH ST 83385 OBD 8 214 0516 00 2 SPRING HLCPS 0 959 DIA X 1 250 INCH LONG 80009 214 0516 00 9 214 1987 00 2 INDEX HDL RING 80009 214 1987 00 10 214 0515 02 2 HUB HDL INDEX 1 42 DIA X 0 565 THK AL CD ATTACHING PARTS 80009 214 0515 02 1...

Page 236: ...0016 01 3 337 2122 01 1 SHLD IMPLOSION CLEAR 80009 337 2122 01 4 159 0021 00 2 FUSE CARTRIDGE 3AG 2A 25OV FAST BLOW 71400 AGC 2 159 0022 00 1 FUSE CARTRIDGE 3AG 1A 250V FAST BLOW 71400 AGC 1 116V OPERATION 159 0025 00 2 FUSE CARTRIDGE 3AG 0 5A 250V FAST BLOW 71400 AGC 1 2 232V OPERATION 070 1907 01 1 MANUAL TECH INSTRUCTION 80009 070 1907 01 010 6105 03 2 PROBE VOLTAGE P6105 2 METER 10X W ACCESS 8...

Page 237: ... the 10X attenuation of the probe W A R N I N G To avoid shock do not disassemble when connected to voltage source Disassembly is a service operation only Refer servicing to qualified service personnel The compensating box houses a network that provides optimum transient re sponse when used with 100 MHz oscilloscopes Modular construction of the probe simplifies repairs as both probe head and compe...

Page 238: ...ssure you the fastest possible service Please include the instrument Type Number or Part Number and Serial Number with all requests for parts or service Specifications and price change privileges reserved Copyright 1975 by Tektronix Inc Beaverton Oregon Printed in the United States of America All rights reserved Contents of this publication may not be reproduced in any form without permission of T...

Page 239: ...istance Fp VS frequency Compensation Range 15 pF to 47 pF Bandwidth 3 dB At least 100 MHz for the 1 and 2 meter and at least 95 MHz for the 3 meter Maximum Input Voltage 500 Volts dc peak ac derated with frequency See Fig 3 Voltage vs Frequency Derating Environmental Probe operates within specifications over the following ranges Temperature 15 C 5 F to 75 C 167 F Altitude To 15 000 feet Physical N...

Page 240: ... t a i n t h e b e s t f i d e l i t y WARNI NG T o a v o i d s h o c k d o n o t d i s a s s e m b l e t h e p r o b e w h e n c o n n e c t e d t o a s i g n a l o r v o l t a g e s o u r c e P R O B E C O M P E N S A T I O N D u e t o s l i g h t v a r i a t i o n s i n t h e i n p u t c a p a c i t a n c e i t i s u s u a l l y n e c e s s a r y t o c o m p e n s a t e t h e p r o b e w h e n ...

Page 241: ... c e Rp vs f r e q u e n c y f o r 1 m e t e r 3 3 ft p r o b e Fig 2 T y p i c a l p a r a l l e l r e a c t a n c e Xp a n d r e s i s t a n c e Rp vs f r e q u e n c y f o r 2 m e t e r 6 6 ft a n d 3 m e t e r 9 9 ft p r o b e s 5 Fig 3 V o l t a g e vs f r e q u e n c y d e r a t i n g ...

Page 242: ...r t s a r e a v a i l a b l e S e e R e p l a c e a b l e P a r t s L i s t f o r p a r t n u m b e r s R e p l a c i n g a P r o b e A s s e m b l y I f t h e c o a x i a l c a b l e p r o b e h e a d o r c o m p e n s a t i o n b o x s h o u l d f a i l t h e a s s e m b l i e s a r e a v a i l a b l e W h e n r e p l a c i n g p r o b e a s s e m b l i e s m a k e s u r e t o u s e t h e p r o ...

Page 243: ...laceable under Replaceable under Replaceable under 206 0216 00 206 0219 00 206 0219 00 206 0220 00 206 0221 00 1 Meter 206 0217 00 2 Meter 206 0218 00 1 Meter 206 0220 00 2 Meter 206 0221 00 1 Meter Assembly only 2 Meter Assembly only 3 Meter Assembly only 3 Meter Assemblies 3 Meter Assemblies CROSS INDEX MFR CODE NUMBER TO MANUFACTURER MFR CODE MANUFACTURERADDRESS CITY STATE ZIP 01121 05006 75042...

Page 244: ...09 175 1661 00 1 COMP BOX 1 METER 80009 206 0219 00 1 RETAINER COVER COMP BOX l METER BLUE 80009 343 0570 00 010 6105 03 010 6105 02 1 206 0217 00 2 1 _3 2 4 175 1661 01 5 206 0220 00 6 343 0570 01 2 METER PROBE 1 PROBE VOLTAGE 10X 2M W ACCESSORIES 80009 010 6105 03 1 PROBE VOLTAGE 10X 2 METER 80009 010 6105 02 1 PROBE HEAD 2 METER YELLOW 80009 206 0217 00 1 TIP PROBE 1 TIP PROBE IC TEST 1 CA ASSY...

Page 245: ...I A P R O B E B S H G 8 0 0 0 9 1 6 6 0 4 0 4 0 1 10 3 4 4 0 0 4 6 0 0 2 C L I P E L E C T R I C A L ALLIGATOR T Y P E W C O V E R 8 0 0 0 9 3 4 4 0 0 4 6 0 0 11 3 5 2 0 3 5 1 0 0 1 H L D R T E S T P R O D 8 0 0 0 9 3 5 2 0 3 5 1 0 0 12 1 2 T I P P R O B E 13 1 7 5 0 1 2 5 0 1 1 L E A D E L E C T R I C A L P R O B E G N D 1 2 I N C H E S L O N G 8 0 0 0 9 1 7 5 0 1 2 5 0 1 14 1 7 5 0 1 2 4 0 1 1 L...

Page 246: ...to printing and shipping requirements we can t get these changes immediately into printed manuals Hence your manual may contain new change information on following pages A single change may affect several sections Since the change information sheets are carried in the manual until all changes are permanently entered some duplication may occur If no such change pages appear following this page your...

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Tektronix 455, Instruction Manual, Page: 179 / 246

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