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Tektronix 1710J Series, Instruction Manual

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Theory of Operation

1710J-Series Waveform Monitors

5–21

This is an inverting amplifier with negative feedback. See Figure 5–6. R22 is the
feedback resistor while R7, R20, and R33 act to maintain the summing junction
at +5 V. Without any Z-axis input current, the amplifier output is approximately
+10 V. Negative Z-axis input current will cause the output to go positive.

–15 V

R22

37.4K

+100 V

R20

3.74K

R33
13K

R7

100K

Figure 5–6: Z-Axis amplifier

Q5 is a current amplifier feeding the output stage. Q3 and Q4 form a push-pull
output stage. Q3 acts as a 2.7 mA constant current pull-up, while Q4 is the
pull-down transistor. C6 speeds up the amplifier by coupling ac signals to the
base of Q3. CR2 and R41 protect the amplifier during CRT arcing.

Z-Axis Amplifier

Summary of Contents for 1710J Series

Page 1: ...0 and above 070 9673 03 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com ...

Page 2: ... and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 500 Beaverton OR 97077 TEKTRONIX and TEK are registered trademarks of Tektronix Inc ...

Page 3: ...ations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or conne...

Page 4: ......

Page 5: ...s 1 4 REMOTE Connector 1 4 RGB YRGB Parade Display 1 4 Connecting to the Program Line 1 4 Mechanical Installation 1 6 Cabinets 1 6 Cabinet Installation 1 7 Rack Adapter 1 8 Custom Installation 1 10 Functional Checkout Procedure 1 12 Procedure 1 12 Operating Basics Front Panel Controls and Indicators 2 1 Rear panel Connectors 2 4 Making a Signal Amplitude Measurement 2 5 Reference Graticules 3 1 NT...

Page 6: ...e Machine 5 9 Horizontal Sync Generator 5 10 Vertical Sync Generator 5 11 Z Axis Control 5 11 Trace Rotation 5 11 Graticule Illumination 5 11 Regulators 5 11 Sweep Generators and Horiz Output Diagram 4 5 12 Sweep Generator 5 12 Magnifier Amplifier 5 13 Horizontal Output Amplifier 5 13 Microcontroller Diagram 5 5 13 Processor 5 13 RGB Amplifier 5 15 Cal Drive 5 15 LED Drive 5 16 Front Panel Diagram...

Page 7: ...ck Calibrator Frequency 6 4 Check Sync Separation 6 4 Check Sweep Operation 6 5 Check Sweep Calibration 6 6 Check RGB YRGB Parade Display 6 8 Check Vertical Gain 6 9 Check Calibrator Amplitude 6 10 Check DC Restorer Operation 6 10 Check Flat Response 6 12 Check Transient Response 6 13 Check X5 Transient Response 6 14 Check Low Pass Filter Response 6 14 Check Chrominance Filter Response 6 15 Check ...

Page 8: ...7 15 Maintenance Service Strategy 8 1 Preparation 8 2 Handling Static Sensitive Components 8 2 Handling Precautions 8 3 Operating Options 8 3 REMOTE Connector 8 5 RGB YRGB Parade Display 8 5 Setting RGB Offset 8 6 Preventive Maintenance 8 7 Cleaning and Inspection 8 7 Cleaning 8 7 Visual Inspection 8 8 Performance Verification and Readjustment 8 8 Removal and Replacement Instructions 8 9 Bezel Rem...

Page 9: ...upply 8 26 Preliminary Checks 8 26 Focus Amplifier Check 8 26 Z Axis Amplifier Check 8 26 Grid Drive Check 8 27 High Voltage Oscillator Check 8 27 CRT Voltage Check 8 28 Repackaging 8 28 Identification Tag 8 28 Repackaging for Shipment 8 28 Replaceable Electrical Parts Parts Ordering Information 9 1 Using the Replaceable Electrical Parts List 9 1 Diagrams Diagrams Circuit Board Illustrations 10 1 ...

Page 10: ... bar display in flat filter mode 1 14 Figure 1 12 Checking vertical gain with internal calibrator 1 15 Figure 1 13 Dual channel 2 line display of color bar and linearity signals 1 16 Figure 1 14 Checking timing with the internal calibrator signal a 2 line display b 2 line display magnified c 1 line display 1 17 Figure 1 15 Two line color bar display with the low pass filter on 1 18 Figure 1 16 Two...

Page 11: ...1 RGB YRGB parade display test connector 7 3 Figure 7 2 Adjustment locations for the Main and Power Supply boards 7 5 Figure 7 3 Segment of the Main board showing the test points and adjustment locations for the 11 8 V supplies 7 7 Figure 7 4 Equipment setup to adjust 0 2 ms timing 7 8 Figure 7 5 Equipment setup for adjusting the calibrator amplitude 7 10 Figure 7 6 Equipment setup for adjusting C...

Page 12: ... 1710J Series Block diagram 10 1 Figure 10 2 A3 Main Board component locator 10 4 Figure 10 3 A3 Main Board component locator 10 6 Figure 10 4 A3 Main Board component locator 10 8 Figure 10 5 A3 Main Board component locator 10 10 Figure 10 6 A3 Main Board component locator 10 12 Figure 11 1 Front View 11 5 Figure 11 2 CRT Chassis and Main Bd 11 7 Figure 11 3 Power Supply and Rear 11 9 Figure 11 4 ...

Page 13: ...5 2 Control Line Functions 5 14 Table 6 1 Required Equipment 6 1 Table 6 2 Preliminary Control Settings 6 3 Table 6 3 Sync Amplitude 6 5 Table 6 4 Timing Accuracy 6 6 Table 6 5 RGB YRGB Parade Display 6 8 Table 6 6 Transient Response 6 13 Table 6 7 X5 Gain Transient Response 6 14 Table 7 1 Equipment Required 7 2 Table 7 2 Preliminary Control Settings 7 3 Table 8 1 Static Susceptibility 8 2 Table 8...

Page 14: ...Table of Contents x 1710J Series Waveform Monitors ...

Page 15: ... Shock To avoid injury or loss of life do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the ...

Page 16: ...AUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the ...

Page 17: ...in hazardous voltages for long periods of time after power is turned off Before attempting any servicing discharge the CRT by shorting the anode to chassis ground When discharging the CRT connect the discharge path to ground and then the anode Rough handling may cause the CRT to implode Do not nick or scratch the glass or subject it to undue pressure when removing or installing it When handling th...

Page 18: ...Service Safety Summary xiv 1710J Series Waveform Monitors ...

Page 19: ...hich it was designed H Servicing instructions that are intended for those who maintain the instru ment The information in the book is clearly divided into these two categories by a striped warning page The material in this manual is arranged in a logical order which allows both operating and servicing personnel to retrieve information with equal ease The major topics in this book are H Getting Sta...

Page 20: ...ons for the various assemblies that comprise this instrument cleaning and inspection instructions and troubleshooting information H Replaceable Electrical Parts includes ordering information and part numbers for all replaceable electrical parts H Diagrams and Illustrations contain the block diagram the circuit board illustrations the schematic diagrams and the cross reference for locating circuit ...

Page 21: ...utside of North America contact your local Tektronix distributor or sales office Service support Tektronix offers extended warranty and calibration programs as options on many products Contact your local Tektronix distributor or sales office For a listing of worldwide service centers visit our web site For other information In North America 1 800 833 9200 An operator can direct your call To write ...

Page 22: ...Preface xviii 1710J Series Waveform Monitors ...

Page 23: ...Getting Started ...

Page 24: ......

Page 25: ...ical signal processing provides slow DC restoration that clamps the display while still showing any 50 or 60 Hz hum components The input signal can be unfiltered Flat or either Low Pass or Chrominance filtered There is also a combination of Flat and Low Pass filtering available when a 2 Line or 2 Field sweep rate is employed the display consists of one line or field low pass filtered while the sec...

Page 26: ...sing these methods most of the 528A operational modes can be accommodated Accessories The accessories listed here are in two categories Standard accessories are the items that you need to use the instrument as it is designed Optional accessories are items that enhance the instruments usability or applications in a variety of environments The following accessories are shipped with the 1710J Series ...

Page 27: ...1710J Series Waveform Monitor in its operating environment Information on the settings of the internal jumpers appears in the Maintenance section of this manual The shipping carton and pads provide protection for the instrument during transit they should be retained in case subsequent shipment becomes necessary Repackaging instructions can be found in the Maintenance section of this manual Electri...

Page 28: ...es approximately nine divisions of sweep This sweep can be either 1 line or 1 field depending on front panel switch setting The displayed signal is the front panel selected CH A or CH B input A TTL low level ground on pin 10 of the REMOTE connector shortens the sweep for the three step RGB display A high level open on pin 10 lengthens the sweep for the four step YRGB display Connecting to the Prog...

Page 29: ...of the typical 1 V full scale The external reference normally house sync is usually routed around on a 75 W coaxial line When connecting to this line it is also important that the line be correctly terminated Because this input is also a high impedance bridging loop through the same considerations that apply to the program line also apply to this line Figure 1 2 is a simple diagram of a 1710J Seri...

Page 30: ... Series are only valid if the instrument is mounted in one of the three Tektronix cabinet options To guarantee compliance with specifications the instrument must be operated in a 1700F00 or 1700F02 cabinet or a 1700F05 rackmount adaptor The plain cabinet 1700F00 is shown in Figure 1 3 Rear 6 130 Bottom Side 12 725 8 250 6 875 0 688 1 060 16 180 5 105 0 156 Diameter 4 Figure 1 3 Dimensions of the 1...

Page 31: ...nt They supply adequate shielding minimize handling damage and reduce dust accumulation within the instrument To install a cabinet on this instrument slide the instrument into the cabinet and secure it to the cabinet with two 6 32 Pozidriver screws through the holes in the upper corners of the rear panel See Figure 1 5 CAUTION Without the mounting screws the instrument can slip out of the cabinet ...

Page 32: ...0F05 is a side by side rack adapter that is made up of two cabinets It can be used to mount the 1710J Series and another half rack width instrument in a standard 19 inch rack See Figure 1 6 Rear view 18 970 5 250 17 270 6 875 Mounting holes Controls front panel to rack alignment Figure 1 6 The 1700F05 side by side rack adapter Rack Adapter ...

Page 33: ...00F06 Blank Panel in the unused section See Figure 1 7 The rack adapter and panel are available through your local Tektronix field office or representative 1700F05 1700F06 Figure 1 7 An instrument in a 1700F05 cabinet with a blank front panel In addition to being able to fill the unused side of the side by side rack mount cabinet 1700F05 with a blank front panel you can install an accessory drawer...

Page 34: ... be mounted with front molding flush or protruding from the console In both cases allow approximate ly 3 inches of rear clearance for bnc and power cord connections See Fig ure 1 9 To mount the 1710J Series safely attach it to a shelf strong enough to hold its weight Install the mounting screws through the four 0 156 inch diameter holes in the bottom of the 1700F00 cabinet Custom Installation ...

Page 35: ...For flush front panel Cut hole the same size as the monitor front molding to allow the monitor front panel to align with the custom panel surface For protruding front molding Cut hole in panel the same size as the opening in the monitor cabinet to allow thefrontpanelmoldingtocoverthehole Figure 1 9 Custom installation of an instrument cabinet ...

Page 36: ...iated equipment is performing normally refer the 1710J Series Waveform Monitor to qualified service personnel for repair or adjustment When a complete check of the instrument performance to its specification is desired refer to the Performance Verification Procedure in this manual This procedure requires a source of composite video The Tektronix 1410 Series Television Test Signal Generator 1410 fo...

Page 37: ...he eye of the POWER switch to indicate that it is on NOTE Do not set any of the front panel screwdriver controls until after the instrument warms up 20 minutes minimum 3 Initial Front Panel Setup Set the 1710J Series Waveform Monitor front panel controls as shown in Table 1 1 Table 1 1 Front Panel Controls Control Setting FILTER FLAT REF INT INPUT A GAIN OFF no indicators on POSITION VERTICAL as i...

Page 38: ...ss 5 Check the Rotation of the Display Variations in the earth s magnetic field may make adjustment of the ROTATE control necessary at installation or whenever you move the instrument Check that the display blanking level is parallel to the horizontal axis If not adjust the ROTATE screwdriver adjustment until the sweep is parallel to the horizontal axis 6 Calibrate Display The CAL mode on the REF ...

Page 39: ...annel A or Channel B inputs Position the color bar waveform so that the blanking level is at the 40 IRE 0 V graticule line Select the Channel B input Note that the linearity waveform is displayed Push and hold the INPUT button until both the color bar and linearity waveforms are displayed See Figure 1 13 Check that both the CH A and CH B front panel indicators are on Push the switch to return to t...

Page 40: ...he first transition is on the left side timing mark the mark that goes completely through the blanking line There are three on the graticule See Figure 1 14a Check that the falling transition of the 10th square wave passes directly through the right side timing mark The H CAL can be adjusted if timing is off Push the MAG button and check for one cycle of square wave over the 10 divisions of timing...

Page 41: ...Tek c Figure 1 14 Checking timing with the internal calibrator signal a 2 line display b 2 line display magnified c 1 line display 9 Vertical Gain The normal GAIN setting with the GAIN switch off is 1 V full scale with the X5 indicator off Push the GAIN button and check that the X5 indicator lights Check for a large increase in gain It can be determined that this is a X5 gain increase by setting ...

Page 42: ...the FLAT response normal applications Figure 1 11 shows the color bar signal with the FLAT response Press and hold the FILTER button to get the front panel LPASS indicator to light This provides the low pass frequency response the chrominance compo nent of the signal has been removed See Figure 1 15 0V 1 2 1 0 1 1 0 9 0 8 0 7 0 6 0 5 0 4 0 2 0 1 0 PAL 0 3 0 7 Tek 2 4 K FACTOR Figure 1 15 Two line ...

Page 43: ...ilter Hold the FILTER button in until both the FLAT and LPASS front panel indicators are lit The display now consists of two lines the first of which has the chrominance removed and the second is unfiltered See Figure 1 17 0V 1 2 1 0 1 1 0 9 0 8 0 7 0 6 0 5 0 4 0 2 0 1 0 PAL 0 3 0 7 Tek 2 4 K FACTOR Figure 1 17 Dual filter selected low pass and flat Push the FILTER switch and return to FLAT ...

Page 44: ...ification of the horizontal sync details Push SWEEP for 2FLD and MAG for X25 and note that the vertical interval is displayed See Figure 1 18 Note that the MAG button works with any SWEEP selection Push the MAG button to turn off the MAG 0V 1 2 1 0 1 1 0 9 0 8 0 7 0 6 0 5 0 4 0 2 0 1 0 PAL 0 3 0 7 Tek 2 4 K FACTOR Figure 1 18 Display of vertical interval with magnified 2 field sweep ...

Page 45: ...Operating Basics ...

Page 46: ......

Page 47: ...s and rear panel connectors Front Panel Controls and Indicators The front panel controls and indicators consist of momentary contact push but ton switches variable controls and backlit switch selections See Figure 2 1 for control and indicator locations 14 10 9 5 1 2 3 8 13 4 7 6 11 12 Figure 2 1 1710J Series front panel controls ...

Page 48: ...alibrator is accessed by holding in the REF switch Instrument status is retained in memory when CAL is selected and the original status restored when you push the button again All front panel lights except SWEEP and MAG go out and GAIN goes to X1 when the calibrator is selected The X5 is not usable with the calibrator Note that MAG and SWEEP are switchable in the calibrator mode but revert to thei...

Page 49: ...INTENSITY Adjusts the brightness of the display 12 ON OFF Controls the output of the power supply AC line potential is present in the primary section of the power supply circuit whenever mains power is supplied to the instrument A mechanical indicator in the center of the switch shows the status of the POWER switch WARNING Mains power is still applied to the 1710J Series power supply circuit board...

Page 50: ...panel connectors 1 AC Power Plug A standard AC plug receptacle for 120 or 240 VAC power mains Plug is compatible with any of the power cord options available for the 1710J Series Waveform Monitor 2 Fuse Holder A holder for the instrument s main fuse See Replaceable Electrical Parts List for the correct fuse value 3 REMOTE This 15 pin subminiature D type connector is used for the RGB display It con...

Page 51: ...ing measurements are more complex they are discussed in the Reference section of this manual 1 Signal Input Connect a 1 V color bar signal to one of the inputs of the 1710J Series Waveform Monitor preferably Ch A and terminate the loop through input with a 75 W terminator For the remainder of this procedure this input signal will be referred to as the signal This signal can be from a generator or ...

Page 52: ...This is 40 IRE for 1710J and 0 mV for 1711J If necessary adjust the 1710J Series Waveform Monitor V CAL to set the peak white level to 1 0 V for 1711J or 100 IRE for 1710J It may be necessary to reposition the display and again adjust the V CAL to match the 1 V signal amplitude to a 1 V display 4 Measure Sync Amplitude Push the INPUT REF switch to return to INT This should now display a two line d...

Page 53: ...tal sync pulse 5 Measure White Level The white level can vary with the signal source For example NTSC color bar signals may be either 75 white or 100 white therefore the white level may be at 75 IRE or 100 IRE depending on the source In most cases the color bar is at 75 white With the blanking level on the correct graticule line measure the white level See Figure 2 4 6 Measure Setup Level NTSC onl...

Page 54: ...ACTOR Tek Setup level Figure 2 5 One line display for setup measurement on 1710J Use the VERTICAL position to set the blanking level of the signal to the IRE graticule line Measure the amplitude of the level following the last chrominance packet of the color bar It should be at the dotted line labeled 7 5 ...

Page 55: ...Reference ...

Page 56: ......

Page 57: ...graticule scales will be discussed separately while the horizontal scales are discussed together The NTSC graticule has two main vertical scales to facilitate typical measure ments See Figure 3 1 The left side scale is marked in IRE units and extends from 50 to 120 IRE in 10 IRE increments An IRE unit is equal to 7 14 milli volts Black level setup is shown as a dashed line at 7 5 IRE There are 2 I...

Page 58: ...transition passes through the descending arrow To measure the K Factor line time distortion measure the largest deviation of the bar top tilt or rounding within the structure The structure is designed to ignore the first and last 1 ms of the bar where short time distortions ringing overshoot undershoot etc occur The solid outer box equals a 4 K Factor while the dashed line inner box equals a 2 K F...

Page 59: ...s 12 4 divisions for PAL and takes on different timing intervals depending on the sweep rate selected In 2 line sweep each major division is 10 ms and when magnified X10 each major division equals 1 ms In 1 line sweep each major division is equal to 5 ms and when magnified X25 each major division equals 0 2 ms In 2 field sweep the timing scale is of no real value since this is a monitoring mode ho...

Page 60: ... to 1 234 V to indicate peak amplitude of 100 color bars Between the 0 9 V and 1 1 V lines there are markings at 20 mV intervals Making Measurements To use the PAL vertical scale for measuring the K Factor for line time distortion and pulse to bar ratio measurements set the signal blanking level at the graticule blanking line 0 3 V and position the leading edge of the bar to the ascending arrow ju...

Page 61: ...ashed lines equals less than 2 K Factor Analyzing a Video Signal Although television test equipment and test signals have evolved over the years to make video quality monitoring fast and easy an experienced operator can keep the signal under tight control using just a waveform monitor A television system works well over a wide range of conditions because the destination equipment knows what to exp...

Page 62: ...ll sections of your signal path Any notches in the sync edges or sync tip could indicate signal reflections or ghosting caused by improper cable termination or multiple over the air signal paths The size and shape of the color burst can tell you something about the color and detail performance of your system The color burst should be the same amplitude as your sync pulse The matching amplitude bet...

Page 63: ...ty is allowed here but the picture signal should use most of the area between the 7 5 IRE maximum black for NTSC dotted line 0 3 maximum black for PAL and the line at 100 IRE or 1 0 V maximum white If you do not use all of this range the picture will have a low contrast dark or washed out look Most pictures will have some black some white and a range of values in between If the average is more tow...

Page 64: ...Reference 3 8 1710J Series Waveform Monitors ...

Page 65: ...Specifications ...

Page 66: ......

Page 67: ...Input Output and Vertical Deflection Name Description Deflection Factor n 1 V Full Scale 140 IRE 1 0 V 1 1 V input signal displayed with FLAT FILTER n X5 5 gain accuracy 1 V input signal displayed with FLAT FILTER Maximum Absolute Input Level 5 V DC peak AC Inputs over 200 IRE 1 428 V may cause frequency response errors DC Input Impedance Greater than 15 kW unterminated Position Range 1 V signal p...

Page 68: ...less n Field Tilt 1 or less field rate square wave or vertical window n 25 ms Bar Tilt 1 or less n Overscan Less than 2 variation in baseline of 100 IRE 700 mV 12 5T 20T modulated pulse as it is positioned over the middle 80 of the screen Differential Gain Displayed differential gain is 1 or less with 10 to 90 APL changes Chroma filter must be selected Baseline at 50 IRE and displayed subcarrier a...

Page 69: ...V within 1 Position Top of waveform must be between 80 IRE 0 86 V and 120 IRE 1 14 V on graticule when backporch is positioned to 0 IRE 0 300 V line with DC RESTORER on Table 4 4 Horizontal Deflection Name Description n Sweep Sweep will occur in all Horizontal mode settings with or without synchronization n 2 FLD Sweep Repetition Rate Equal to frame rate of applied video or external sync n 2 FLD S...

Page 70: ... MHz Loop through terminated in 75 W instrument power on or off Absolute Maximum Input Voltage 12 VDC plus peak AC Table 4 6 RGB YRGB Name Description n RGB YRGB Will display either a three step or four step RGB YRGB parade or overlay display Pin 10 of the REMOTE connector controls selection of RGB YRGB sweep length YRGB is high RGB is low n Staircase Amplitude A 10 V input will result in a horizo...

Page 71: ...ing Potential Typically 13 75 kV Trace Rotation Range Greater than 1 degree from horizontal Total adjustment range is typically 8 degrees Graticule Internal variable illumination Table 4 8 Power Source Name Description n Mains Voltage Range 90 250 V Continuous range from 90 to 250 VAC Mains Frequency 50 or 60 Hz Power Consumption 56 VA 35 watts Peak Inrush Current 9 1 A 90 VAC 50 Hz 25 2 A 250VAC ...

Page 72: ...pliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN 50081 1 Emissions EN 55022 Class B Radiated and Conducted Emissions EN 50082 1 Immunity IEC 801 2 Electrostatic Discharge Immunity IEC 801 3 RF Electromagnetic Field Immunity IEC 801 4 Electrical Fast Transient Burst Immunity Low Voltage Directive 73 23 EEC EN 61010 1 Safety re...

Page 73: ...at generates persistent conductivity through conductive dust rain or snow Typical outdoor locations Safety Standards U S Nationally Recognized Testing Laboratory Listing UL1244 Standard for electrical and electronic measuring and test equipment Canadian Certification CAN CSA C22 2 No 231 CSA safety requirements for electrical and electronic measuring and test equipment European Union Compliance Lo...

Page 74: ...Specifications 4 8 1710J Series Waveform Monitors ...

Page 75: ...are for use only by qualified personnel To avoid injury do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so Refer to all Safety Summaries before performing any service WARNING ...

Page 76: ......

Page 77: ...Theory of Operation ...

Page 78: ......

Page 79: ... circuit descriptions Overview The 1710J Series Waveform Monitor is a specialized oscilloscope It is designed to monitor and measure television baseband signals See Figure 5 1 Signals input through either of the rear panel 75 W bridging loop through inputs are synchronously displayed on a CRT Vertical Inputs CH A CH B EXT REF Front panel controls Microcontroller Horizontal Remote interface Sync CR...

Page 80: ...left with the unfiltered flat signal following When the calibrator signal is selected from the front panel switching a 1 volt 100 kHz signal is applied to the input of the gain cell instead of input video The calibrator signal is used to set up both vertical gain volts full scale and to check horizontal accuracy from a common self contained source Signal amplitude can be adjusted at the gain cell ...

Page 81: ... control uses the blanking signal unblanking and the intensity voltage to unblank the CRT during sweep time When the sweep is magnified its off screen portion is blanked to increase the on off contrast ratio The focus amplifier which is controlled by the front panel FOCUS control provides a voltage to the CRT focus ring The CRT is of the Post Acceleration type which requires a relatively high pote...

Page 82: ... cap C398 When the restorer is selected U395D closes and the loop compensated buffer amplifier U495A drives the input amplifier input summing junction through R197 The time constant of the restorer does not attenuate 50 60 Hz hum by more that 10 The input amplifier output signals drive the channel switch U492 The signal selection is determined by the level of the CH B signal at U492 pin 10 When CH...

Page 83: ...tches it amplifies that portion of the signal and generates a clean sync signal The circuit responds well to pulses up to 1 MHz then rolls off to eliminate any effect from subcarrier or high frequency noise at the sync level The sync stripper circuit consist of a two stage amplifier and a clamp or dc restorer Figure 5 2 shows a simplified schematic of the circuit Both amplifier stages feed back sy...

Page 84: ...ing low chrominance filters are clamped to ground when low pass filtering or flat is selected In this condition Q777 and Q776 are turned on clamping the chromi nance filter outputs to ground When the chrominance filter is turned on an additional bias current for the ac coupled filters 3 58 and 4 43 MHz is required It is supplied by pulling the emitters of either CR671 or CR670 low with the micropr...

Page 85: ...he signal input with a 3 0 VDC level plus the signal voltage R675 determines the maximum gain of the gain cell The amount of gain is controlled by varying the difference between the bases of the two transistor pairs controlling the signal current flowing out of pin 6 or pin 12 The front panel V CAL control R700 sets an input dc level on pin 10 of the gain cell The current flowing out of pin 6 driv...

Page 86: ...voltage Vin applied to the bridge CR1 CR2 the output signal voltage CR3 CR4 is approximately equal to the input When Vin moves away from the quiescent state the current in the bridge arms becomes unbalanced VIN VOUT 1 2RL 1 2RL 1 3RL V V V V CR1 CR2 CR3 CR4 Figure 5 3 Simplified illustration of the bridge limiter circuit When the bridge unbalances the current through the diodes changes with more c...

Page 87: ...ductive CRT load resistors R184 and R186 The resulting signal voltages drive the CRT vertical deflection plates R183 and R187 shunt the load resistors to provide the proper load resistance for the high bandwidth output signal L180 and L190 are adjustable shunt peaking coils to increase the vertical bandwidth and allow precise adjustment of flat response Timing Diagram 3 Composite sync from the syn...

Page 88: ...nd HSYNC HSYNC is a clock source for the PAL and drives the back porch one shot U844A The pulse width is set to end at the start of the burst on the back porch of the composite sync signal The back porch pulse for the DC restorer is generated by U844A and Q737 C843 and R837 set the position of the pulse C848 and R849 determine the pulse width The RC network formed by R963 C964 C97 and R964 turns t...

Page 89: ...nput to the transistor switching array through U252B pin 9 When it goes high the current output collector of U252A pin 8 is shut off and the Z axis amplifier Diagram 8 blanks the CRT Trace rotation compensates for changes in the magnetic field surrounding the 1710J Series Waveform Monitor Q142 and Q143 are emitter followers to provide trace rotation current to the CRT surrounding coil located insi...

Page 90: ...flip flop preset low which assures at least 2 ms line sweep one shot time constant of discharge retrace time Field sweep one shot time constant is 2 ms At the end of the time constant preset goes high and clear goes low causing the flip flop Q output to go low and turn off Q451 or Q450 to start charging the integrating capacitor Current source for the integrators is through R654 When a one line or...

Page 91: ...per J456 to accommodate either three or four step sweeps for RGB and YRGB modes U465A and U465B are comparators used to sense when the output of the magnifier and position amplifier have driven the CRT beam to the edge of the CRT screen When the beam is horizontally overdriven the input to U234C is pulled low to generate the BLANK enabling level for the Z axis amplifier Diagram 3 The horizontal ou...

Page 92: ...d on it saturates and provides the ground to close the circuit for one of the front panel LEDs For example if bits SA and D1 are set high U305A saturates and drives its collector to ground which turns on the FLAT indicator U331 divides the ALE address latch enable signal from the microprocessor U522 by 20 When the calibrator is enabled U331 divides ALE down to output the 100 kHz CALDR calibrator d...

Page 93: ...les flat no filter FIELDSWP High Enables field rate sweep ON DCR Low Enables DC restorer GLITBLKEN Low Generates blanking pulse during H sync time in 2 line sweep Under normal operation the base of Q856 is pulled down by CR955 which causes Q855 to saturate and ground the amplifier output When exerted the RGB ENABLE from the REMOTE connector is inverted to provide a discharge path for the emitter o...

Page 94: ...sor with a set of column row matrix addresses An LED indicator lights when there is a complete circuit from the light driver Diagram 5 through the LED and back to the light driver Switches complete a simple matrix that is read by Port 1 of the microprocessor A completed circuit through the processor switch closure dictates an output through the data I O that changes one or more operating condition...

Page 95: ...stored in the magnetic field of T3 When Q9 turns off the drain voltage flies back in a positive direction Current now flows in all of the secondary windings and supplies power The input line voltage is filtered by the rear panel connector to reduce the electrical noise conducted into or out of the instrument R89 limits the initial charging current through the rectifier diodes and C54 CR21 CR22 CR2...

Page 96: ... vary in order to maintain U5 pin 2 at 2 5 V The voltage at U5 pin 1 is modified by an internal circuit and sets the trip point of the internal comparator U5 pin 3 is the external input to the comparator R88 and C52 connected to U5 pin 4 set the internal oscillator to 80 kHz The circuit works as follows The oscillator resets the latch and U5 pin 6 goes high turning the switcher MOSFET on The curre...

Page 97: ...eeds the pulse width modulator and the output under voltage shutdown circuit CR29 resets T2 between pulses If the 5 V is below 4 9 V the error amplifier will cause the peak detector output to go below 2 9 V The output of comparator U3B will pull low and shut down pulse width modulator U5 C47 and R96 delay the operation of U3B long enough for the power supply to power up If the 5 V does not reach 4...

Page 98: ...ocus as viewed on the CRT with the front panel FOCUS control set to mid range Once the center focus adjustment has been set adjusting the front panel FOCUS control changes the voltage at the bottom end of the divider and consequently the voltage on the CRT focus anode The cathode of the CRT is at a 2750 V potential with the grid coupled to the Z axis amplifier by the grid drive circuit The grid is...

Page 99: ... is approximately 10 V Negative Z axis input current will cause the output to go positive 15 V R22 37 4K 100 V R20 3 74K R33 13K R7 100K Figure 5 6 Z Axis amplifier Q5 is a current amplifier feeding the output stage Q3 and Q4 form a push pull output stage Q3 acts as a 2 7 mA constant current pull up while Q4 is the pull down transistor C6 speeds up the amplifier by coupling ac signals to the base ...

Page 100: ...Theory of Operation 5 22 1710J Series Waveform Monitors ...

Page 101: ...Performance Verification ...

Page 102: ......

Page 103: ...erformance Verification The characteristics specified are the minimum Table 6 1 Required Equipment Test Equipment Characteristic Example Test Oscilloscope Vertical amplifier bandwidth 30 MHz sensitivity 1 mV and accuracy of 0 25 Horizontal deflection system 5 ms div to 1 s div that can accept an external trigger Tektronix TAS465 Oscilloscope 10X Probe Tektronix P6137 probe Oscilloscope 1X Probe Te...

Page 104: ...ing Generator Bandwidth 10 MHz and sensitivity to 50 dB Tektronix 2712 Opt 04 Step Attenuator 75 W constant impedance attenuator variable from 0 to 40 dB in 1 dB steps Wavetek 75803 Step Attenuator 75 W Terminators Three required one should be a feed through type End line 75 W terminator Tektronix P N 011 0102 00 and a feed through 75 W terminator Tektronix P N 011 0103 02 75 W Coaxial Cable 42 in...

Page 105: ...p time required after the 1710J Series Waveform Monitor power is turned on This preliminary setup is the starting point for all parts of this procedure 1 Set up the 1710J Series Waveform Monitor front panel controls as shown in Table 6 2 Table 6 2 Preliminary Control Settings Control Setting POWER ON INTENSITY Set to preference FOCUS Set to preference SCALE Set to preference VERTICAL Position Set ...

Page 106: ...The frequency requirements are H Frequency 100 kHz 100 Hz H Synchronizes 1 Line and 2 LINE Sweep free runs in 2 FLD 1 Connect a X10 probe from the frequency counter to the blue CRT lead on the main circuit board 2 Display the CAL signal at the 2 LINE sweep rate 3 Check that the frequency of the Calibrator is 99 9 to 100 1 kHz 4 Check that the Calibrator is synchronized in both 1 LINE and 2 LINE sw...

Page 107: ...ted 2 Check that a sweep occurs at each sweep rate 2 LINE 2 FLD and 1 LINE 3 Select CH B input 4 Check that the 1 LINE and 2 LINE sweep modes display one line and two lines of the color bar respectively 5 Check for a 2 FLD sweep display of the color bar signal 6 Select and center the 2 FLD sweep and then push the MAG button 7 Check that some portion of the vertical field blanking interval is displ...

Page 108: ... select 2 LINE sweep 3 Use the HORIZONTAL position control to place the first falling calibrator transition on the 10 ms graticule mark the timing mark on the left side of the graticule that goes completely through the blanking line See Figure 6 2 100 80 60 40 20 20 40 NTSC 7 5 12 5 0 75 100 2 4 K FACTOR Tek Bracketed area represents the distance between 10 ms and 110 ms timing marks Figure 6 2 Te...

Page 109: ...cule 2 one minor division 11 Use a 75 W coaxial cable to connect the television signal generator multi burst output to the 1710J Series Waveform Monitor CH A input 12 Use a 75 W coaxial cable to connect the other side of the loop through to the digital counter input 13 Adjust the multiburst Frequency for a 5 MHz sine wave as measured on the digital counter 14 Select the 1710J Series Waveform Monit...

Page 110: ...tep display 1 2 position selects attenuation for four step display 3 Install the parade display test connector on the 1710J Series Waveform Monitor REMOTE connector See Figure 6 1 4 Check that the sweep has shortened to 3 4 to 4 1 divisions if P456 is set for a three step display or 2 5 to 3 1 divisions if the plug on J456 1 2 is set for a four step display 5 Check that the shortened sweep is 1 LI...

Page 111: ... generator linearity output to the CH B input Do not terminate either loop through See Figure 6 3 1710J Series Waveform Monitor Do not terminate Television Test Signal Generator Linearity signal Video Amplitude Calibrator Figure 6 3 Equipment hook up for checking vertical gain 3 Set the VAC to 999 9 mV 4 Move A3J500 to the 1 2 OFF position 5 Adjust VCAL for exactly 140 IRE 1 00 V 6 Set the VAC to ...

Page 112: ...rator signal is displayed 2 Check the 1710J Series Waveform Monitor for a displayed amplitude of 138 6 to 141 4 IRE PAL 0 990 V to 1 010 V The requirements are H Attenuation of 60 Hz input signal 20 or less H Blanking level shift with APL change less than 1 IRE 7 mV H Blanking level shift with presence or absence of burst less than 1 IRE 7 mV 1 Use a 75 W coaxial cable to connect the television te...

Page 113: ...inator 11 Select CH A and EXT REF 12 Switch multiburst generator Burst off and on 13 Check that the blanking level changes less than 1 IRE NTSC or 7 mV PAL 14 Remove the multiburst input from the CH A input 15 Use a 75 W coaxial cable to connect the function generator output through a X10 75 W Attenuator to the CH A input 16 Move A3J500 to the 1 2 off position 17 Set the function generator frequen...

Page 114: ...e output amplitude for a 100 IRE 0 7 V display amplitude 4 Check the flat response using the 50 kHz response as a reference While changing the frequency of the sine wave generator check that the response is within 2 from 250 kHz to 6 MHz 5 Change the VERTICAL GAIN to X5 6 Set the leveled sine wave generator to 50 kHz and set the output amplitude for a 100 IRE 0 7 V display amplitude 7 Check flat r...

Page 115: ...ignal to the CH B input Terminate the remaining side of the loop through input with a 75 W end line terminator 2 Select INT REF 3 Select the full amplitude 2T pulse and bar signal from the television test signal generator Display the signal with the 1 LINE sweep 4 Check for less than 1 preshoot and less than 2 overshoot and ringing for the pulse and bar transitions 5 Check for a pulse to bar ratio...

Page 116: ...ep Attenuator and insert 14 dB of attenuation in the input signal path 4 Check for 1 or less preshoot and 4 or less overshoot and ringing for the pulse and bar transitions 5 Check for a pulse to bar ratio within 2 of unity 6 Disconnect signal from the CH B input The requirement is that response at 15 kHz does not vary between FLAT and LPASS by more than 1 1 Connect the modulated five step linearit...

Page 117: ...largest chrominance bar is 99 to 101 of the amplitude in step 3 6 Select FLAT filter 7 Set the leveled sine wave generator frequency to 50 kHz Adjust the amplitude so that the display is 100 IRE NTSC or 700 mV PAL 8 Set the frequency of the leveled sine wave generator to 7 2 MHz NTSC or 8 9 MHz PAL 9 Select CHROMA filter 10 Check that less than 10 of the reference amplitude remains 11 Move A3J500 ...

Page 118: ...major division down from the top on the analyzer display 7 Remove one of the cables from the RF bridge 8 Set the spectrum analyzer Frequency to 5 MHz and turn the Marker on Set the Marker to 6 MHz 9 Reconnect the cable to the RF bridge 10 Observe the Reference Level Readout 11 Adjust the spectrum analyzer External Attenuation Amplitude on the spectrum analyzer Input menu by the amount noted in ste...

Page 119: ...ies Waveform Monitor CH A input Terminate the CH A loop through with the same precision high frequency terminator used in step 15 18 Select the 1710J Series Waveform Monitor CH A input 19 Check that the Reference Level Readout on the spectrum analyzer is 40 dBm with the instrument power on and off 20 Repeat steps 17 through 19 for CH B and EXT REF inputs 21 Remove all cables and terminators from t...

Page 120: ...Performance Verification 6 18 1710J Series Waveform Monitors ...

Page 121: ...Adjustment Procedure ...

Page 122: ......

Page 123: ... of the semiconductor characteristics Devices that are particularly susceptible are MOS CMOS JFETs and high impedance operational amplifiers FET input stages The damaged parts may operate within acceptable limits over a short period but their reliability may have been severely impaired Damage can be significantly reduced by observing the following precautions during performance of the adjustment p...

Page 124: ...to 10 Vp p into 75 W Tegam FG501A Function Generator Voltmeter Range 0 to greater than 100 VDC accuracy 0 1 Frequency Counter Range 100 kHz to 5 MHz accuracy 0 001 Tegam DC503A Universal Counter Timer Video Amplitude Calibrator Signal adjustable square wave 0 0 to 999 9 mVp p with a resolution of 0 1 mV and an accuracy of 0 05 frequency approximately 270 Hz Tektronix 067 0916 00 Power Module For p...

Page 125: ...is procedure covers only the adjustments Checks other than those that must be made to ensure that a step is completed are in the Verification Procedure Allow 20 minutes of warm up time at normal room temperature approximately 25_ C before making any adjustments to the instrument All test equipment warm up times as specified by the manufacturer must also be observed to ensure that all tolerances ar...

Page 126: ...ransformer for either 110 or 220 Volts 3 Connect a composite multiburst signal to the CH B input and terminate the opposite side of the loop through with a 75 W termination The component to adjust is A1R99 1 Connect the DMM negative lead to TP1 GND and the positive lead to W1 5 V 2 Adjust A1R99 5 V ADJ for 5 0 V 0 5 V See Figure 7 2 NOTE The 5 V supply is the reference for all supplies in the 1710...

Page 127: ...ÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ CAUTION MAINS VOLTAGE W1 5 V R552 R553 R755 R660 R661 R167 R168 C368 C372 R274 Test point C195 L180 L190 Q280 Q289 R489 R492 C696 R689 C775 C777 R700 R701 C784 C783 C778 C683 R683 R680 J500 J197 J699 CRT BIAS R58 GEOM R45 FOCUS R11 W4 15 V W3 15 V 5 V ADJ R99 671 2890 07 and above A1 Power supply board ASTIG R49 J99 R003 J504 Figure 7 2 Adjustment locations for the Ma...

Page 128: ...ponent to adjust is the front panel ROTATE 1 Select CH A input 2 Adjust the front panel ROTATE for a level trace across the CRT s 0 IRE line NTSC or 0 3 V line PAL The components to adjust are A1R167 and A1R168 NOTE 1 Connect the voltmeter ground lead to one of the rear panel ground lugs and the active lead to the 11 8 V test point See Figure 7 3 2 Adjust R167 11 8 V ADJ for 11 78 to 11 82 V Trace...

Page 129: ...oint See Figure 7 3 4 Adjust R168 11 8 V ADJ for 11 78 to 11 82 volts The components to adjust are A3R660 and A3R552 1 Display the CAL signal in the 2 LINE sweep 2 Adjust R660 Sweep Length for one cycle of the calibrator signal per major division over the center ten divisions 3 Turn on the MAG 4 Adjust R552 1 ms Cal for one full cycle over the ten major divisions The component to adjust is A1R553 ...

Page 130: ...rator to low continuous and manual Turn markers off 5 Adjust the multiburst Frequency for a 5 MHz sine wave as measured on the digital counter 6 Change the multiburst generator to Composite 7 Select 1 LINE sweep and turn on the MAG 8 Adjust R553 for 10 cycles of subcarrier over 10 divisions 1 minor division Recheck multiburst generator frequency by switching it back to Continuous 9 Disconnect the ...

Page 131: ...eck that both ends of the trace can be positioned to at least the center of the screen The component to adjust is A3R856 1 Change from the multiburst signal to the color bar signal 2 Set the 1710J Series Waveform Monitor sweep to 1 LINE 3 Set the HORIZONTAL Position control to mid range 4 Connect pin 2 of the rear panel REMOTE socket to ground 5 Note that the color bar display compresses to 1 4 to...

Page 132: ...ckwise 5 Connect the voltmeter lead to the collector transistor case of Q289 See Figure 7 2 6 Check that the voltage is 0 8 V If it is not repeat steps 1 through 5 until the collector voltages are balanced at the same DC level The component to adjust is A3R689 1 Use a 75 W coaxial cable to connect the VAC signal to the 1710J Series Waveform Monitor CH A input do not terminate the remaining side of...

Page 133: ... remaining side of the loop through input with a 75 W terminator 3 Set the input to BOTH CH A and CH B 4 Adjust R492 DC Bal to overlay the CH A and CH B displays The component to adjust is A3R274 1 Select CH A input 2 Use the VERTICAL Position control to position the signal blanking level on the graticule baseline 3 Select X5 GAIN 4 Adjust R274 X5 Mag to reposition blanking level to the baseline 5...

Page 134: ...it is bumped up adjust both L180 and L190 in a small amount both cores should be adjusted together If it is dipped adjust both L180 and L190 out a small amount both cores should be adjusted together 7 Repeat steps 5 and 6 until the best response to 6 MHz is achieved You may need to adjust C368 HF Comp slightly it affects response in the 6 8 MHz region 8 Disconnect the multiburst signal from the CH...

Page 135: ... CH A Comp for 100 IRE NTSC or for 700 mV PAL 13 Set the leveled sine wave generator frequency to 3 58 MHz NTSC or 4 43 PAL and check for 100 IRE or 700 mV 2 2 IRE or 14 mV 14 If not in specification at 3 58 or 4 43 MHz repeat steps 5 through 7 as set up by steps 1 and 2 The component to be adjusted is A3C696 1 Select CH B input 2 Select 2 LINE sweep 3 Set the leveled sine wave generator frequency...

Page 136: ...al cable to connect the television test signal generator color bar signal to the CH A input Terminate the remaining side of the loop through input with a 75 W terminator 3 Select input A and LPASS FILTER 4 Turn on HORIZONTAL MAG and X5 VERTICAL GAIN 5 Adjust C777 LPASS Filter for minimum chrominance minimum trace width on the back porch following color burst 6 Position the sync pulse to the baseli...

Page 137: ...up NTSC Set color bar amplitude to 75 3 Set the 1710J Series Waveform Monitor to CH A CHRM FILTER 1 LINE sweep and sweep MAG off 4 Adjust R683 NTSC Chroma Filter Gain or R680 PAL Chroma Filter Gain so that the amplitude of the largest color packet is 100 IRE or 700 mV depending on the color standard employed 5 Adjust C683 3 58 NTSC or C778 PAL for the squarest envelope minimum burst envelope decay...

Page 138: ...Adjustment Procedure 7 16 1710J Series Waveform Monitors ...

Page 139: ...Maintenance ...

Page 140: ......

Page 141: ...k in this section Tektronix provides service to cover repair under warranty Other services are available that may provide a cost effective answer to your service needs Whether providing warranty repair service or any of the other services listed below Tektronix service technicians trained on Tektronix products are best equipped to service your 1710J Series Waveform Monitor Tektronix technicians ar...

Page 142: ...ected environments Table 8 1 shows the relative static discharge susceptibility of various semiconductor classes Table 8 1 Static Susceptibility Relative Susceptibility Levels Voltage 2 ECL 200 V 500 V 3 Schottky Signal Diodes 250 V 4 Schottky TTL 500 V 5 HF Bipolar Transistors 400 V 600 V 6 JFET s 600 V 800 V 7 Linear Microcircuits 400 V 1000 V 8 Low Power Schottky TTL 900 V 9 TTL 1200 V Observe ...

Page 143: ...tion of the 1710J Series Waveform Monitor as flexible as possible there are internal jumpers that can be changed to provide operating flexibility For example it is possible to select either the three step or four step parade to accommodate RGB or YRGB displays With the exception of the 50 60 Hz jumper the factory preset position is indicated by a box printed on the etched circuit board Table 8 2 d...

Page 144: ...actory Set 2 3 DC Coupled A3J699 CH B Input Coupling 1 2 AC Coupled Factory Set 2 3 DC Coupled A3J504 50 60 Hz 1 2 50 Hz Line Rate Factory Set for 1711 2 3 60 Hz Line Rate Factory Set for 1710 REMOTE Connector The rear panel REMOTE connector is a 15 pin D type connector It is the input for RGB signals Pin assignments for the REMOTE connector are shown in Figure 8 2 and discussed in Table 8 3 RGB E...

Page 145: ...s the 28 V enable signal used by the 528 must be converted to ground closure 0 VDC This conversion requires only a few common parts as shown in Figure 8 3 28V Enabling voltage 47K 0 25W 1N4152 30V 150mA 3K 0 25W 2N3904 To 1 10J Series REMOTE connector Figure 8 3 Common parts used to convert from 28 Vdc enable to ground closure RGB Offset and Compensation Television cameras vary in output dc level ...

Page 146: ...e based on the environment in which it is operated and the amount of use Under average conditions scheduled preventive maintenance should be performed every 2000 hours of operation Cleaning and Inspection Preventive maintenance consists of cleaning and visual inspection The schedule depends on the severity of the operating environment Under average conditions perform preventive maintenance after 2...

Page 147: ... enclosed assembly or component Do not clean any plastic materials with organic cleaning solvents such as benzene toluene xylene acetone or similar compounds because they may damage the plastic After cleaning carefully check the instrument for defective connections damaged parts and improperly seated transistors or integrated circuits The remedy for most visible defects is obvious however if heat ...

Page 148: ...15 screwdriver tip Tektronix part number 003 0966 00 The exception is 2 Pozidrive _ screws which can be removed with a 1 Pozidrive tip Tektronix part number 003 0443 00 In order to replace the graticule light bulbs clean or replace the CRT or remove the instruments front panel it is necessary to remove the CRT bezel Removal requires a screwdriver with a T15 Torx tip 1 Remove the two bezel screws S...

Page 149: ...ries Additional bulbs can be purchased from Tektronix see Replaceable Electrical Parts list or from local electronics distribution sources 1 Remove the bezel according to instructions See Bezel Removal 2 To remove a bulb position the tweezer tips on the thin flat portion of the bulb close to the plastic socket Carefully pull the bulb straight out To replace graticule lights perform the following p...

Page 150: ...e needed The CRT shield along with the grommet around its front and the rubber manchet around its back should come out with the CRT To replace the CRT perform the following procedure 1 If the CRT is to be replaced remove the metal shield from the neck of the old CRT and place it around the neck of the new CRT with the WARNING sticker towards the top of the instrument This should place the opening ...

Page 151: ...f the CRT shield Tighten the two support nuts The rear panel is mounted directly to the main chassis It is held in place with three Torx head screws In addition the instruments power plug is mounted on the rear panel with two additional Torx head screws Use a screwdriver with a T15 Torx tip to remove and replace the rear panel 1 Remove the five rear screws See Figure 8 5 2 Unsolder the lead to the...

Page 152: ... remove and replace these items 1 Remove the blue multi wire connector from J154 2 Remove the two screws holding the board in place See Figure 8 6 3 Remove the board by slipping it through the front panel opening 4 To access the Front Panel board components a Remove the knobs from the front b Remove the four screws from the rear c The board should now separate from the front panel for component ac...

Page 153: ...el circuit board A2 in place The main circuit board is held in place by eight Torx head screws Use a screwdriver with a T15 Torx tip to remove and replace these screws In addition a soldering iron is required to remove this circuit board 1 Remove the plugs from the following connectors J107 to the Front Panel board J4 on the Power Supply board and J225 on the Main board the trace rotation leads to...

Page 154: ... Slip the CRT and trace rotation leads through the appropriate holes in the Main board and reconnect them 4 Solder the leads to the six BNC connectors and three grounds from the rear panel the two horizontal CRT leads red and green and the two vertical CRT leads blue and brown 5 Reinstall the plugs on the following connectors J107 to the Front Panel board J4 on the Power Supply board and J225 on t...

Page 155: ...uitry 3 Unsolder the following connections J1 pins 1 through 4 J3 pins 1 through 4 and the focus lead at J11 4 Disconnect the ac line filter from the rear panel by unscrewing its two mounting screws 5 Use a screwdriver with 1 Pozidrive tip to disconnect the power on off switch from the front casting 6 Remove the seven screws that are holding the Power Supply board down See Figure 8 8 7 Remove the ...

Page 156: ...ctions should be followed to the letter in order to accomplish the task The foldout pages at the back of the manual contain information that is useful in troubleshooting the instrument Block and schematic diagrams circuit board illustrations and parts locating charts are found there Diagrams Schematic diagrams are the most often used troubleshooting aids The circuit number and electrical value of ...

Page 157: ...this instrument A2 Front panel board A3 Main board A1 Power supply board Figure 8 9 Circuit board assembly locations Adjustment Locations The Adjustment Procedure has illustrations that have the adjustments and test points called out as calibration and troubleshooting aids There are two separate parts lists in this manual The Replaceable Electrical Parts list precedes the schematic diagrams and ci...

Page 158: ...ent components The list and exploded view drawing follow the schematic diagrams in this manual Standard Accesso ries which are also included in the parts list are also in the exploded view drawing Signals and power supply voltages are passed through the instrument with a system of interconnecting cables The connector holders on these cables have numbers that identify terminal connectors numerals a...

Page 159: ... turn expedites repairs and minimizes down time 1 Ensure that the malfunction exists in the instrument This is done by making sure that the instrument is operating as intended by Tektronix see Operating Basics and by checking that a malfunction has not occurred up stream from the waveform monitor 2 Determine and evaluate all trouble symptoms This is accomplished by isolating the problem to a gener...

Page 160: ...Use the Performance Check Procedure to determine if a circuit is operating within specifications At times it may be necessary to change a calibration adjustment to determine if a circuit is operational but since this can destroy instrument calibration care should be exercised Before changing an adjustment note its position so that it can be returned to its original setting 6 Determine the extent o...

Page 161: ... H A Digital Multimeter DMM with a diode check function H A general purpose oscilloscope H A 0 to 20 VDC Variable Power Supply H A clip lead to short across a component H A high voltage probe w1 G W input resistance The Troubleshooting Procedure for the power supply Assembly A1 is split into two sections the low volts and high volts supplies Start the procedure by determining which section of the ...

Page 162: ...roubleshooting is performed without applying AC power 2 Disconnect AC power from the instrument Disconnect the instrument from the Power Supply by removing the jumper from J4 3 Use the DMM to measure the voltage between TP2 and the tab drain of Q9 Check that the voltage is near 0 V WARNING Do not proceed until the the drain of Q9 is near 0 V Dangerous voltage potentials are present in the circuit ...

Page 163: ...14 or Q6 high volts power supply 3 Connect the positive output from the 20 VDC Power Supply to TP1 Connect the negative output to W3 15 V The circuit should draw less than 20 mA Excessive current draw can be caused by CR12 4 Connect the negative output from the 5 VDC power supply to TP1 Connect the positive output to W1 5 V The circuit should draw less than 20 mA Excessive current draw can be caus...

Page 164: ...y to TP1 Connect the positive output to W4 15 V Set the variable power supply to 20 VDC 3 Connect the DMM between TP1 and the cathode of CR15 4 Set the variable DC power supply connected to W1 5 V to 4 8 V The cathode of CR15 should be approximately 20 V 5 Set the variable DC power supply connected to W1 5 V to 5 2 V The cathode of CR15 should be approximately 2 V 6 If this check does not reveal t...

Page 165: ... 2 Power up the power supply 3 Using the digital multimeter measure the voltage between TP1 and the collector of Q1 It should be approximately 140 V 4 Power down the power supply 5 Reconnect the lifted end of R24 This is one of the two procedures to use if you cannot adjust CRT intensity with the front panel intensity control 1 Unsolder and lift one end of R8 2 Power up the power supply 3 Using th...

Page 166: ...o TP1 Power up the supply The signal should be a 60 Vp p 22 kHz sine wave 2 Check the voltages listed in Table 8 8 using the DMM Table 8 8 High Voltage Oscillator Test Points Circuit Location Voltage T1 pin 4 Approximately 40 V T1 pin 13 Less than 2 V U2 pin 2 Approximately 4 8 V U2 pin 6 4 to 11 V CR9 cathode Approximately 100 V This is the second procedure to perform if there is no CRT Display N...

Page 167: ...provide adequate protection see Figure 8 11 If the original packaging is not available or is unfit for use repackage the instrument as follows 1 Obtain a corrugated cardboard carton whose inside dimensions are at least six inches greater than the dimensions of the instrument to allow room for cushioning The shipping carton should have a test strength of at least 275 pounds 2 Surround the instrumen...

Page 168: ...Maintenance 8 28 1710J Series Waveform Monitors Figure 8 11 Repackaging a 1710J Series Waveform Monitor ...

Page 169: ...Replaceable Electrical Parts ...

Page 170: ......

Page 171: ... the following information in your order H Part number H Instrument type or model number H Instrument serial number H Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Change information if any is located at the rear of th...

Page 172: ...t which the part was discontinued No entry indicates the part is good for all serial numbers 5 Name Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 6 Mfr Code This indicates the code number of the actual manufacturer of th...

Page 173: ...EK MANUFACTURING OF OREGON P O BOX 4200 M S 16 207 BEAVERTON OR 970764200 0JR03 ZMAN MAGNETICS INC 7633 S 180TH KENT WA 98032 0LUA3 PHILIPS COMPONENTS 100 PROVIDENCE PIKE SLATERSVILLE RI 02876 12697 CLAROSTAT SENSORS CONTROLS INC 12055 ROJAS DR SUITE K EL PASO TX 79936 12954 ICROSEMI CORP SCOTTSDALE 8700 E THOMAS ROAD PO BOX 1390 SCOTTSDALE AZ 85252 5252 13103 THERMALLOY INC 2021 W VALLEY VIEW LN ...

Page 174: ...LEM ST PROVIDENCE RI 02907 59660 TUSONIX INC 7741 N BUSINESS PARK DR PO BOX 37144 TUCSON AZ 85740 7144 61429 FOX ELECTRONICS DIV OF FOX ENTERPRIXED INC 5842 CORPORATION CIRCLE FORT MEYERS FL 33905 62643 UNITED CHEMI CON INC 9801 W HIGGINS RD ROSEMONT IL 60018 4771 73743 FISCHER SPECIAL MFG CO 111 INDUSTRIAL RD PO BOX 76500 COLD SPRINGS KY 41076 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR PO BOX 500...

Page 175: ...009 671 1796 01 A10 671 3637 00 CIRCUIT BD ASSY CRT SOCKET BD 80009 671363700 A1 671 2890 11 CIRCUIT BD ASSY POWER SUPPLY 80009 671289011 A1C1 281 0775 01 CAP FXD CERAMIC MCL 0 1UF 20 50V Z5U 0 170 04222 SA105E104MAA A1C2 283 0021 00 CAP FXD CER DI 0 001UF 20 5000V TK2058 TCK45YS3H102M A A1C3 283 0261 00 CAP FXD CER DI 0 01UF 20 4000V 18796 DHR28Z5U103M4K V A1C4 283 0261 00 CAP FXD CER DI 0 01UF 2...

Page 176: ...V ESR 0 40 OHM 100KHZ 20C 0H1N5 CEEFM1H561M7 A1C36 290 1267 00 CAP FXD ALUM 560UF 20 50V ESR 0 40 OHM 100KHZ 20C 0H1N5 CEEFM1H561M7 A1C37 290 1267 00 CAP FXD ALUM 560UF 20 50V ESR 0 40 OHM 100KHZ 20C 0H1N5 CEEFM1H561M7 A1C38 290 1267 00 CAP FXD ALUM 560UF 20 50V ESR 0 40 OHM 100KHZ 20C 0H1N5 CEEFM1H561M7 A1C39 281 0775 01 CAP FXD CERAMIC MCL 0 1UF 20 50V Z5U 0 170 04222 SA105E104MAA A1C40 281 0772...

Page 177: ...152 0400 00 DIODE RECT FAST RCVRY 400V 1A 200NS 0LUA3 1N4936 A1CR11 152 0814 00 671 2890 11 DIODE RECT ULTRA FAST 150V 3A 1 1VF 30NS SOFT RCVY 0LUA3 BYV28 150 A1CR11 152 0808 00 671 2890 12 DIODE RECT ULTRA FAST 400V 1 5A 50NS BYD73G AXIAL LEAD TR 04713 PR 1273 A1CR12 152 0400 00 DIODE RECT FAST RCVRY 400V 1A 200NS 0LUA3 1N4936 A1CR13 152 1191 00 DIODE RECT SCHTKY 100V 10A 150A IFSM 800MVF AT 10A ...

Page 178: ...RDC 0 017 OHM TK2058 TSL0807 4R7M3R0 A1L3 108 1412 00 INDUCTOR FXD POWER 4 7UH 20 I 3 7A RDC 0 017 OHM TK2058 TSL0807 4R7M3R0 A1L4 108 0205 00 INDUCTOR FXD POWER 1MH 5 IDC 400 MA RDC 2 12 OHM 76493 8209 A1Q1 151 0749 00 TRANSISTOR SIG BIPOLAR PNP 400V 500MA 50MHZ AMPL 04713 MPSA94 A1Q2 151 0190 00 TRANSISTOR SIG BIPOLAR NPN 40V 200MA 300MHZ AMPL 0JR04 2N3904 A1Q3 151 0350 03 TRANSISTOR SIG BIPOLAR...

Page 179: ...D13001D A1R28 322 3344 00 RES FXD FILM 37 4K OHM 1 0 2W TC T0MI SM BODY 91637 CCF501G37401F A1R29 315 0470 03 RES FXD CMPSN 47 OHM 5 0 25W 50139 CB4705 A1R30 315 0103 03 RES FXD CMPSN 10K OHM 5 0 25W 50139 CB1035 A1R31 322 3385 00 RES FXD METAL FILM 100K OHM 1 0 2W TC 100 PPM 91637 CCF501G10002F A1R32 322 3452 00 RES FXD FILM 499K OHM 1 0 2W TC TOMI SMALL 91637 CCF50 2 G4993FT A1R33 322 3300 02 RE...

Page 180: ... 91637 CCF501G10002F A1R65 322 3385 00 RES FXD METAL FILM 100K OHM 1 0 2W TC 100 PPM 91637 CCF501G10002F A1R66 322 3452 00 RES FXD FILM 499K OHM 1 0 2W TC TOMI SMALL 91637 CCF50 2 G4993FT A1R67 322 3001 00 RES FXD METAL FILM 10 OHM 1 0 2W TC 100 PPM 91637 CCF501G10R00F A1R68 322 3121 00 RES FXD METAL FILM 178 OHM 1 0 2W TC 100 PPM 91637 CCF501G178R0F A1R69 322 3289 07 RES FXD FILM 10K OHM 0 1 0 2W...

Page 181: ...W TC 100 PPM 91637 CCF501G49R90F A1R102 308 0290 00 RES FXD WW 8 OHM 5 5W 91637 CW52 8R000J T R A1R103 322 3452 00 RES FXD FILM 499K OHM 1 0 2W TC TOMI SMALL 91637 CCF50 2 G4993FT A1T1 120 1695 00 TRANSFORMER PWR HIGH VOLTAGE FEEDBACK 3V 75498 120 1695 00 A1T2 120 1945 00 TRANSFORMER RF PRI 8UH 2 7 ON OFF VERT MT PC MT 0JR03 120 1945 00 A1T3 120 1944 00 TRANSFORMER RF PRI 88V PRI 15V SEC 40V AT0 3...

Page 182: ...ACE HOLDER TK1155 150 1290 00 A2DS328 PART OF DS327 A2DS329 PART OF DS327 A2P107 175 9773 01 CA ASSY SP RIBBON IDC 34 28AWG 4 64L 2X17 O 1 RCPT TK0196 ORDER BY DESCR A2R245 311 2321 00 RES VAR WW CLAROSTAT 3 TURN POT 12697 CM45221 MOUNTING PARTS 210 0583 00 NUT PLAIN HEX 0 25 32 X 0 312 BRS CD PL 73743 2X 20319 402 210 1435 00 WASHER FLAT 0 254 X 0 311 X 0 016 SST 86928 5710 56 15P END MOUNTING PA...

Page 183: ...L TAPE REEL 55680 UVX1H100MAA1TD A3C91 281 0537 00 CAP FXD CERAMIC MLC 0 68PF 20 500V 0 170 X 0 187 AXIAL 04222 TBA A3C96 281 0788 00 CAP FXD CERAMIC MLC 470PF 10 100V 0 100 X 0 170 AXIAL 04222 SA102C471KAA A3C97 281 0799 00 CAP FXD CER DI 62PF 2 100V TUBULAR MI 04222 SA102A620GAA A3C98 281 0775 01 CAP FXD CER MCL 0 1UF 20 50V Z5U 0 170 X 0 100 AXIAL 04222 SA105E104MAA A3C99 290 0943 00 CAP FXD AL...

Page 184: ... 50V 0 100 X 0 170 AXIAL MI 04222 SA102A330JAA A3C297 281 0775 01 CAP FXD CER MCL 0 1UF 20 50V Z5U 0 170 X 0 100 AXIAL 04222 SA105E104MAA A3C298 281 0775 01 CAP FXD CER MCL 0 1UF 20 50V Z5U 0 170 X 0 100 AXIAL 04222 SA105E104MAA A3C324 290 0748 00 CAP FXD ELCTLT 10UF 50 20 25WVDC AL 62643 CEUST1E100 A3C331 281 0770 00 CAP FXD CER DI 1000PF 20 100V TUBULAR MI 04222 SA101C102MAA A3C332 281 0775 01 C...

Page 185: ...LAR MI 04222 SA101C102MAA A3C498 281 0775 01 CAP FXD CER MCL 0 1UF 20 50V Z5U 0 170 X 0 100 AXIAL 04222 SA105E104MAA A3C522 281 0775 01 CAP FXD CER MCL 0 1UF 20 50V Z5U 0 170 X 0 100 AXIAL 04222 SA105E104MAA A3C547 281 0767 00 CAP FXD CERAMIC MLC 330PF 20 100V 0 100 X0 170 AXIAL MI 04222 SA102C331MAA A3C548 281 0763 00 CAP FXD CERAMIC MLC 47PF 10 100V 0 100 X 0 170 AXIAL MI 04222 SA102A470KAA A3C5...

Page 186: ...51KAA A3C777 281 0158 00 CAP VAR CER DI 7 45PF 100WVDC 59660 518 006 G 7 45 A3C778 281 0158 00 CAP VAR CER DI 7 45PF 100WVDC 59660 518 006 G 7 45 A3C779 283 0629 00 CAP FXD MICA DI 62PF 1 500V 09023 CD10ED620F03 A3C780 283 0677 00 CAP FXD MICA DI 82PF 1 500V 09023 CD15ED820F03 A3C781 283 0629 00 CAP FXD MICA DI 62PF 1 500V 09023 CD10ED620F03 A3C782 283 0639 01 CAP FXD MICA DI 56PF 1 500V TAPE AMMO...

Page 187: ...150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR246 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR254 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR255 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR256 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR257 152 040...

Page 188: ...152 DO 35 01295 1N4152R A3CR989 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3CR990 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 1N4152 DO 35 01295 1N4152R A3J99 131 4530 00 CONN HDR PCB MALE STR 1 X 3 0 1 CTR 0 230 MLG X 0 120 00779 104344 1 A3J107 131 3571 00 CONN HDR PCB MALE RTANG 2 X 17 0 1CTR 0 350 H X 0 120 00779 103311 7 A3J154 175 9797 00 CA ASSY SP...

Page 189: ...POLAR NPN 30V VCEO 55V VCBO 400MA 500MHZ 04713 2N3866 ATTACHED PARTS 214 1291 00 HEAT SINK SEMIC TRANSISTOR IC TO 5 TO 39 RADIAL 05820 207SB 342 0324 00 INSULATOR DISK TRANSISTOR NYLON 13103 7717 5N END ATTACHED PARTS A3Q297 151 0188 05 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 2N3906RLRA A3Q298 151 0190 00 TRANSISTOR SIG BIPOLAR NPN 40V 200MA 300MHZ AMPL 04713 2N3904 A3Q299 151 0190 ...

Page 190: ...R SIG BIPOLAR NPN 15V 500MA SWITCHING 04713 MPS2369A A3Q788 151 0188 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 2N3906 A3Q790 151 0188 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 2N3906 A3Q791 151 0188 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 2N3906 A3Q792 151 0188 00 TRANSISTOR SIG BIPOLAR PNP 40V 200MA 250MHZ AMPL 04713 2N3906 A3Q798 151 0188 00 TRAN...

Page 191: ...A3R011 322 3205 00 RES FXD FILM 1 33K OHM 1 0 2W TC T0 57668 CRB20 FXE 1K33 A3R012 322 3402 00 RES FXD METAL FILM 150K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G15002F A3R013 322 3126 00 RES FXD FILM 200 OHM 1 0 2W TC T0 MI SMALL BODY 91637 CCF501G200ROF A3R014 322 3402 00 RES FXD METAL FILM 150K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G15002F A3R015 322 3402 00 RES FXD METAL FILM 150K OHM 1 0 2W TC ...

Page 192: ... CCF501G10000F A3R243 322 3318 00 RES FXD FILM METAL FILM 20K OHM 1 0 2W TC 100 PPM 91637 CCF501G20001F A3R246 322 3066 00 RES FXD METAL FILM 47 5 OHM 1 0 2W TC 100 PPM AXIAL 09969 CCF502G47R50F A3R249 322 3218 00 RES FXD METAL FILM 1 82K OHM 1 0 2W TC 100 PPM AXIAL 57668 CRB20 FXE 1K82 A3R254 322 3254 00 RES FXD FILM 4 32K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF502G4321FT A3R255 322 3193 00 RES F...

Page 193: ...C 100 PPM AXIAL 57668 CRB20 FXE 825E A3R373 322 3165 00 RES FXD FILM 511 OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 511E A3R374 322 3190 00 RES FXD FILM 931 OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 931E A3R376 322 3114 00 RES FXD METAL FILM 150 OHM 1 0 2W TC 100 PPM AXIAL 57668 CRB20 FX 150E A XIAL A3R377 322 3141 00 RES FXD FILM 287 OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 287E A3R37...

Page 194: ...322 3117 00 RES FXD FILM 162 OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB 20 FXE 162E A3R457 322 3097 00 RES FXD METAL FILM 100 OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF501G100R0F A3R459 322 3295 00 RES FXD METAL FILM 11 5K OHM 1 0 2W TC 100 PPM AXIAL 57668 CRB20 FXE 11K5 A3R460 322 3481 00 RES FXD FILM 1M OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 1M00 A3R463 322 3295 00 RES FXD METAL FILM 11 5K OHM 1 ...

Page 195: ...PPM AXIAL 91637 CCF50G10001F A3R538 322 3289 00 RES FXD METAL FILM 10K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G10001F A3R544 322 3246 00 RES FXD FILM 3 57K OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 3K57 A3R545 322 3277 00 RES FXD FILM 7 5K OHM 1 0 2W TC T0 57668 CRB20 FXE 7K50 A3R546 322 3162 00 RES FXD METAL FILM 475 OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G475R0F A3R547 322 3258 00 RES FXD ME...

Page 196: ...PED REELED 57668 CRB20 DYE 28K7 A3R583 322 3367 00 RES FXD FILM 64 9K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF50 2 G64901F T A3R584 322 3367 00 RES FXD FILM 64 9K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF50 2 G64901F T A3R588 322 3242 00 RES FXD FILM 3 24K OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 3K24 A3R589 322 3289 00 RES FXD METAL FILM 10K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G10001F A3R590...

Page 197: ...TAL FILM 4 75K OHM 1 0 2W TC 100 PPM AXIAL 56845 CCF50 2 G4751FT A3R669 322 3377 00 RES FXD METAL FILM 82 5K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50 2F82501F A3R670 322 3222 00 RES FXD METAL FILM 2K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF501G20000F A3R671 322 3239 00 RES FXD FILM 3 01K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF501G30100F A3R672 322 3193 00 RES FXD METAL FILM 1K OHM 1 0 2W TC 100 PPM AX...

Page 198: ... 1 0 2W TC 100 PPM AXIAL 91637 CCF501G47501F A3R752 322 3336 00 RES FXD FILM 30 9K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF50 2F30901F A3R753 322 3437 00 RES FXD FILM 348K OHM 1 0 2W TC T0 MI SMALL BODY 57668 CRB20 FXE 348K A3R754 322 3402 00 RES FXD METAL FILM 150K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G15002F A3R755 322 3189 00 RES FXD FILM 909 OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB 20 FXE 909E...

Page 199: ...236 00 RES VAR TRMR CERMET 20K OHM 20 0 5W 0 197 SQ TK2073 GF06UT2 203 M L20 A3R857 322 3308 00 RES FXD FILM 15 8K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF501G15801F A3R858 322 3308 00 RES FXD FILM 15 8K OHM 1 0 2W TC T0MI SMALL BODY 91637 CCF501G15801F A3R859 322 3300 02 RES FXD FILM 13K OHM 0 5 0 2W TC T2 91637 CCF501D13001D A3R860 322 3293 00 RES FXD METAL FILM 11K OHM 1 0 2W TC 100 PPM AXIAL 57...

Page 200: ...1 00 RES FXD FILM 2 49K OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 2K49 A3R906 322 3231 00 RES FXD FILM 2 49K OHM 1 0 2W TC T0MI SMALL BODY 57668 CRB20 FXE 2K49 A3R938 322 3289 00 RES FXD METAL FILM 10K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G10001F A3R940 322 3289 00 RES FXD METAL FILM 10K OHM 1 0 2W TC 100 PPM AXIAL 91637 CCF50G10001F A3R944 322 3391 00 B040332 RES FXD FILM 115K OHM 1 0 2W TC...

Page 201: ...IPOLAR COMPARATOR DUAL OPEN COLLECTOR 01295 LM393P A3U277 156 1850 00 IC MISC CMOS ANALOG SWITCH QUAD DG211 DIP16 3 17856 DG211CJ A3U305 156 0259 00 IC LINEAR BIPOLAR TRANSISTOR ARRAY 5 NPN 0CVK3 ULN2083A A3U331 156 0910 00 IC DIGITAL LSTTL COUNTER DUAL 4 BIT DECADE 01295 SN74LS390N A3U334 156 0575 00 IC DIGITAL CMOS GATE TRIPLE 3 INPUT NOR 04713 MC14025BCP A3U395 156 1850 00 IC MISC CMOS ANALOG S...

Page 202: ...E 0JR04 TC74HC221AP A3U844 156 0750 03 672 1465 02 IC DIGITAL CMOS MULTIVIBRATOR DUAL MONOSTABLE 27014 MM74C221N A3U844 156 2761 01 672 1465 03 IC DIGITAL HCMOS MULTIVIBRATOR DUPLICATE OF 156 2761 00 74HC221A DIP16 3 TUBE 0JR04 TC74HC221AP A3U892 156 1381 00 IC LINEAR BIPOLAR TRANSISTOR ARRAY THREE NPN 34371 CA3096AE A3U947 156 1191 00 IC LINEAR BIFET OP AMP DUAL TL072CN LF353N DIP08 3 01295 TL072...

Page 203: ...KET BD 80009 671363700 V1 154 0985 00 ELECTRON TUBE CRT FINISHED D14 375GH 985 1710J ONLY 80009 154 0985 00 V1 154 0985 16 ELECTRON TUBE CRT FINISHED D14 375WA 985 1710J OPTION 74 ONLY 80009 154 0985 16 V1 154 0986 00 ELECTRON TUBE CRT FINISHED D14 375GH 986 1711J ONLY 80009 154 0986 00 V1 154 0986 16 ELECTRON TUBE CRT FINISHED D14 375WA 986 1711J OPTION 74 ONLY 80009 154 0986 16 W3 196 3146 00 CA...

Page 204: ...Replaceable Electrical Parts 9 34 1710J Series Waveform Monitors ...

Page 205: ...Diagrams ...

Page 206: ......

Page 207: ...ns are based on ANSI Y1 1 1972 Other ANSI standards that are used in the preparation of diagrams by Tektronix Inc are Y14 15 1966 Drafting Practices Y14 2 1973 Line Conventions and Lettering Y10 5 1968 Letter Symbols for Quantities Used in Electrical Science and Electrical Engineering American National Standard Institute 1430 Broadway New York New York 10018 Component Values Electrical components ...

Page 208: ...isted in the lookup table When more than one schematic diagram is used to illustrate the circuitry on a circuit board the circuit board illustration will only appear opposite the first diagram the lookup table will list the diagram number of other diagrams that the other circuitry appears on WIRE STRAP MODULE PLUG P1 NEGATIVE PORTS IC TYPE CHANGED PART 12V DECOUPLED OR FILTERED VOLTAGE R500 20K 12...

Page 209: ... RGB HORZ SYNC 3 VERT SYNC 3 H V TRIG FIELD HSYNC SWEEP GEN 4 RGB STAIRCASE YRGB RGB 4 LIN FLD BLANKING INTENS MAG AMP 4 OUTPUT AMP 4 HORIZONTAL DEFLECTION to CRT FOCUS CRT 8 100 V 40 V 15 V 5 V 15 V MULT 8 GRID CATH TRACE ROT 3 ROTATE GRAT LIGHTS 3 SCALE POST ANODE LOW VOLTS SUPPLY 7 3 TERM REGS 3 11 8 V 11 8 V HMAG1 HMAG2 OUTPUT AMP 2 VERTICAL DEFLECTION to CRT POWER INPUT VERTICAL POSITION HORI...

Page 210: ... Assembly A3 A3 Main Board Schematic 1 Component Locator A3 Main Board 1710J Series Waveform Monitors Figure 10 2 A3 Main Board Schematic 1 component locator ...

Page 211: ...6 4 75K R905 2 49K R904 10 0K CR901 Q900 CR900 Q905 R901 649 R393 900 0 C393 SEL 11 8V R897 2 21K R892 100 7 6 8 U395B DG211 C497 001UF R495 10 0K R596 15 00K R493 100 R497 332 C495 1UF 10 11 9 U395C DG211 C597 001UF C496 027UF BCKPORCH R597 20 0K 5 6 7 U495B TL072 R697 182K J6 J100 C697 47UF C696 1 2 4 0PF 11 8V 11 8V R499 3 32K R498 100 Q498 Q499 R696 15 00K C699 5 6PF C596 2 2PF C498 1UF C595 3...

Page 212: ...Assembly A3 A3 Main Board Schematic 2 Component Locator Figure 10 3 A3 Main Board Schematic 2 component locator 1710J Series Waveform Monitors ...

Page 213: ...3K CR280 R377 287 R379 47 5 R374 931 Q383 C367 5 6PF C368 1 2 4 0PF 11 8V R368 1 27K R372 825 R367 1 27K R479 3 32K R478 1 00K C374 1UF C569 82PF R274 200K VPOSN R371 13 0K R475 2 00K R273 59 0K R569 221K 11 8V 11 8V ON_DCR C488 1UF 2 3 6 7 4 U488 LF351 10 11 9 U277C DG211 X5 11 8V 5V R487 2 00K R484 22 1K 1 2 3 J99 P99 C629 1UF 11 8V 11 8V R473 2 21K R272 10 0K R627 100 VR273 Q272 R472 1 50K C468...

Page 214: ...Assembly A3 A3 Main Board Schematic 3 Component Locator Figure 10 4 A3 Main Board Schematic 3 component locator 1710J Series Waveform Monitors ...

Page 215: ...SYNC FLAT_SEL GLITBLKEN R002 6 19K I CK 1 I 2 I 3 I 4 I 5 I 6 I 7 I 8 I 9 I 10 I 11 I 13 I 14 I 23 I O 22 I O 21 I O 20 I O 19 I O 18 I O 17 I O 16 I O 15 U735 20R4A 12 13 11 U234D 74C00 C944 497PF 5V 5V C X 6 R X 7 A 9 B 10 C L 1 1 Q 5 Q 12 U844B C844 0 1uF 5V R944 100K 11 8V R246 47 5 CR246 INTENS1 HSYNC 5V CAL CALDR CHA_SEL FRCLOCK FIELDSWP LPASS_SEL RGB_EN CHB_SEL V_TRIG FLAT LPASS CH_B 5V R73...

Page 216: ...E1 Assembly A3 A3 Main Board Schematic 4 Component Locator Figure 10 5 A3 Main Board Schematic 4 component locator 1710J Series Waveform Monitors ...

Page 217: ... 100 Q865 R866 100 R960 100K R965 100K 100V R868 2 61K C859 1UF J26 J27 11 8V R859 13 0K R860 11 0K C861 10PF R861 20 0K R959 100K R958 100K Q858 Q860 11 8V R757 16 9K R552 100 R553 100 R661 5K C448 33UF 11 8V Q450 C549 100PF 2 5V TWO_ ONE 11 8V 11 8V R654 1 91K R642 475 R644 4 75K R652 47 5K C740 01UF 5V L643 56UH C X 6 R X 7 A 9 B 10 C L 1 1 Q 5 Q 12 U741B 74HC221A V_TRIG 5V R445 49 9K R001 10 0...

Page 218: ...Assembly A3 A3 Main Board Schematic 5 Component Locator Figure 10 6 A3 Main Board Schematic 5 component locator 1710J Series Waveform Monitors ...

Page 219: ...E P 68 TXD 37 RXD 36 P4 0 26 P4 1 25 P4 2 24 P4 3 23 P4 4 22 P4 5 21 P4 6 20 P4 7 19 P5 0 44 P5 1 45 P5 2 46 P5 3 47 P5 4 48 P5 5 49 P5 6 50 P5 7 51 P6 0 59 P6 1 60 P6 2 61 P6 3 62 P6 4 63 P6 5 64 P6 6 65 P6 7 66 ODS 55 IDS 56 BFLAG 57 AFLAG 58 VCC 18 GND 54 U522 87C451 NC NC C1 C2 C3 C4 A 2 B 3 C 4 D 5 E 6 F 7 G 8 DP 9 SA 17 SB 18 SC 19 SD 20 SE 21 SF 23 SG 24 SDP 25 D1 12 D2 13 D3 14 D4 15 K1 26...

Page 220: ... A2 Front Panel Board A2 Front Panel Board Schematic 6 Component Locator Figure 10 7 A2 Front Panel Board Schematic 6 component locator 1710J Series Waveform Monitors ...

Page 221: ...136B LPASS EXT 4 3 DS117B INPUT CHRM CAL 6 5 DS117C X5 R1 R4 C2 6 5 DS136C DS228 DISPLAY INTENS SCALE INTENS2 INTENS1 SCALE FOCUS HPOSN INTENS3 VPOSN 11 8V R429 20K R443 20K NC 5 B3 TO FROM A3 MAIN BOARD 11 8V NC NC 11 8V INPUT GAIN INPUT FILTER MAG SWEEP REF 11 8V 11 8V S145 R412 20K FOCUS FILTER REF S112 S130 R4 C2 C4 2 1 DS327A 1uS 2 LINE 2 1 DS314A VERTICAL HORIZONTAL X25 2 FLD 4 3 DS314B R2 R...

Page 222: ...4 Q8 E4 I4 Q9 D3 J1 Q11 G3 G3 R13 F3 H4 R14 F3 H4 R62 D4 I4 R67 F2 F4 R68 F4 G5 R69 G4 G5 R70 G4 G4 R71 F4 H4 R72 D5 H4 R73 E5 H4 R74 C4 J5 R75 B5 J4 R76 C5 I4 R77 D4 I4 R78 B4 J4 R79 B3 J2 R80 C4 J4 R81 D3 J1 R82 C3 J2 R83 C5 J2 R84 B5 J2 R85 G4 G5 R86 D3 J1 R87 D3 K2 R88 B4 J2 R89 B2 M4 R90 E3 I3 R91 D2 K1 R92 D2 K1 R93 D2 L2 R94 D2 L2 R95 B4 J3 R96 A4 K3 R97 A3 J3 R98 F4 G5 R99 G4 H5 R101 C3 K2...

Page 223: ...3 47UF C52 01UF 5VC 5VC C45 47UF C48 200PF R80 2 00K 5VC 5VC 5VC C L 3 VCC 16 GND 8 CX 14 RX 15 B 2 A 1 Q 4 Q 13 U4A 74HC221A R77 100 C41 47UF C39 1UF 5VC 1 2 4 3 T2 Q8 CR29 C61 470PF R62 100 CR15 C40 4700PF R98 10 00K 40V CR26 R68 178 R71 221K VR4 VR1 5V R69 10 00K R70 10 00K 5V R85 100K R99 100K 15V 1 2 1 2 J2 TP1 R72 10 0 R73 10 0 TP2 5VC 5VC Q7 CR16 C46 01UF R83 10 00K 5VC R76 3 74K R84 18 7K ...

Page 224: ...E5 A3 R7 B4 A4 R8 B4 A4 R11 F4 A2 R12 D3 C1 R20 C4 A4 R21 C5 A4 R22 D5 A4 R23 B4 A4 R24 D5 A4 R25 B4 A4 R26 E5 A3 R27 E5 A4 R28 E5 A4 R29 D2 B1 R30 D2 A2 R31 D4 B3 R32 E5 B3 R33 C4 B4 R34 C4 B4 R35 D4 B3 R36 D4 B3 R37 C5 B4 R38 E2 B1 R39 E2 B1 R40 D2 B2 R41 D4 B3 R42 E3 C1 R43 E2 B3 R44 D2 B3 R45 F2 C4 R46 E3 C1 R47 D2 C3 R48 C2 C4 R49 F2 C4 R50 F2 E1 R51 F3 E1 R52 F2 E1 R53 F2 E1 R54 F2 E1 R55 D2...

Page 225: ...K 100V 100V CR2 R35 475 ZAXIS J4 1 R23 R25 100 R8 100 R34 2 00K R33 13 0K C1 1UF 100V 15A R20 3 74K R7 100K Q5 R31 100K C5 1UF C6 2200PF C10 47UF Q3 Q4 R28 37 4K R3 1 5M R4 1 5M 5D R41 178 14 13 12 11 9 7 6 5 4 3 2 1 R27 13 0K R5 1 5M 5D 15A Q2 Q1 R26 499K R32 499K R24 100 FOCUS R22 26 1K R37 22 1 15A R21 P320 IS PART OF CRT V1 HV OSC ERROR AMP 5 5KV P P GRID DRIVE POST 11KV CRT 6 g5 g7 3 H3 P320 ...

Page 226: ......

Page 227: ...Replaceable Mechanical Parts ...

Page 228: ......

Page 229: ...lude the following information in your order H Part number H Instrument type or model number H Instrument serial number H Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Change information if any is located at the rear o...

Page 230: ...dicates the quantity of parts used 6 Name Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 7 Mfr Code This indicates the code of the actual manufacturer of the part 8 Mfr Part Number This indicates the actual manufacturer s...

Page 231: ... 13343 PAXTON ST PACOIMA CA 91331 55566 RAF ELECTRONIC HARDWARE INC 95 SILVERMINE ROAD SEYMOUR CT 06483 56501 THOMAS BETTS CORPORATION 1555 LINFIELD RD MEMPHIS TN 38119 5F520 PANEL COMPONENTS CORP PO BOX 115 OSKALOOSA IA 52577 0115 71400 BUSSMANN DIVISION COOPER INDUSTRIES INC PO BOX 14460 ST LOUIS MO 63178 73743 FISCHER SPECIAL MFG CO 111 INDUSTRIAL RD PO BOX 76500 COLD SPRINGS KY 41076 7X318 KAS...

Page 232: ...TCH TK2469 174 2648 00 7 211 0100 00 2 SCREW MACHINE 2 56 X 0 750 PNH STL CD PL POZ 0KB01 ORDER BY DESCR 8 260 2465 00 1 SWITCH PUSH 0 4A 125VAC BTN W YEL INDICATOR 31918 602844 9 210 0405 00 2 NUT PLAIN HEX 2 56 X 0 188 BRS CD PL 73743 12157 50 10 1 CIRCUIT BD ASSY FRONT PNL SEE A2 REPL 11 366 0616 00 6 PUSH BUTTON 0 585 X 0 3 X 0 150 7X318 ORDER BY DESCR 12 333 3892 02 1 PANEL FRONT MAIN 1710J O...

Page 233: ...Replaceable Mechanical Parts 1710J Series Waveform Monitors 11 5 1 2 3 4 3 5 6 7 8 9 3 10 11 12 13 14 A2 15 Figure 11 1 Front View ...

Page 234: ... SEE A10 REPL 10 174 3511 01 1 CA ASSY SP DISCRETE CPD 4 24 AWG 8 0L 1X7 0 1CTR 2 24 AWG 8 5L X STRAIN RELIEF PCB 80009 174 3511 01 ATTACHED PARTS 344 0111 00 2 INSUL SPREADER DEFL LEADS POLYPROPYLENE TK1617 NA 343 0298 00 1 STRAP RETAINING 0 25 DIA CABLE 85480 HCNY 250NA END ATTACHED PARTS 11 179 2997 01 1 WIRE HARNESS DESCRETE CRT ASSY 5 24AGW 5 26 AGW 9M860 179 2997 01 12 426 2103 07 1 FRAME CH...

Page 235: ...Replaceable Mechanical Parts 1710J Series Waveform Monitors 11 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A10 A3 A3A1 15 16 17 18 19 20 Figure 11 2 CRT Chassis and Main Bd ...

Page 236: ...720 01 4 214 3903 01 2 SCREW JACK 4 40 X 0 312 EXT THD 4 40 INT THD 0KB01 214 3903 01 5 210 0255 00 1 TERMINAL LUG 0 391 ID LOCKING BRS CD PL TK1665 ORDER BY DESCR 6 211 0721 00 10 SCREW MACHINE 6 32 X 0 375 PNH STL CDPL T 15 TORX 0KB01 ORDER BY DESCR 7 131 0106 02 6 CONN RF JACK BNC 50 OHM FEMALE 24931 28JR178 1 8 211 0014 00 2 SCREW MACHINE 4 40 X 0 5 PNH STL CD PL POZ 93907 ORDER BY DESCR 9 131...

Page 237: ...Replaceable Mechanical Parts 1710J Series Waveform Monitors 11 9 1 2 3 4 5 6 7 8 9 7 10 6 11 12 21 A1 Figure 11 3 Power Supply and Rear ...

Page 238: ...K 80126 C7120 25M BL OPTIONAL ACCESSORIES 2 161 0215 00 1 CABLE ASSY PWR 3 0 75MU 2 5MM L GREY EUROPEAN OPTION A1 ONLY 80126 0 5335 008 GY 3 161 0066 10 1 CA ASSY PWR 3 1 0 MM SQ 250V 10A 2 5 METER UNITED KINGDOM OPTION A2 ONLY TK2541 ORDER BY DESCR 4 161 0066 11 1 CA ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER AUSTRALIAN OPTION A3 ONLY 80126 ORDER BY DESCR 5 161 0066 12 1 CA ASSY PWR 3 18 AWG 250V 10A...

Page 239: ...Replaceable Mechanical Parts 1710J Series Waveform Monitors 11 11 1 2 3 4 5 6 Figure 11 4 Accessories ...

Page 240: ...Replaceable Mechanical Parts 11 12 1710J Series Waveform Monitors ...

Page 241: ...particular portion of the television waveform Also see DC Restorer Color Bar Signal A test signal typically containing eight basic colors white yellow cyan green magenta red blue and black that is used to check chrominance functions of the color television system Color Burst A sample of chrominance subcarrier frequency that establishes a reference for demodulating the chrominance signal Composite ...

Page 242: ...y limit is set by the luminance signal frequency of the television system NTSC National Television Systems Committee The organization that developed the television standard currently in use in the United States Canada and Japan Now generally used to refer to that standard PAL Phase Alternate Line Refers to one of the television systems used in Europe and many other parts of the world The phase of ...

Page 243: ...e field rate of the television scanning system that is used to stop and start vertical scanning This signal consists of a serrated block pulse surrounded by horizontal equalizing pulses which occur at twice the horizontal sync rate Sync Stripper A circuit whose function is to remove the synchronizing components from the composite television signal and deliver the synchronizing pulses to the displa...

Page 244: ...Glossary Glossary 4 1710J Series Waveform Monitors ...

Page 245: ... Gain HF Response 7 14 X5 Magnifier Registration 7 11 Analyzing a Video Signal 3 5 The Creative Part of the Video Signal 3 7 The Test Signal in the Video Signal 3 5 B Block Diagram CRT Unblanking and High Voltage 5 3 Horizontal 5 2 Vertical 5 2 C Cabinet Installation 1 7 Cabinets 1 6 CH A CH B 2 2 CH A Input Connector 2 5 CH B Input Connector 2 5 Cleaning 8 7 CRT 8 7 Exterior 8 7 Interior 8 7 Clea...

Page 246: ...ly Diagram 8 Focus Amplifier 5 20 Grid Drive Circuit 5 20 HV Osc and Error Amp 5 19 Power Supply Outputs 5 20 Horizontal Position 2 3 Horizontal Scales for NTSC and PAL Graticules 3 3 I Installation 1 3 Packaging 1 3 Installation Control 2 3 Internal Plug Jumpers 8 3 L Low Voltage Power Supply Diagram 7 Error Amplifier 5 19 Feedback Transformer Driver and Peak Detector 5 19 Line Rectifier and Filt...

Page 247: ...nstallation 1 10 Rack Adapter 1 8 Microcontroller Diagram 5 LED Drive 5 16 Processor 5 13 Control Line Functions 5 14 RGB Amplifier 5 15 N NTSC Composite Video Graticule Vertical Scales 3 1 Making Measurements 3 2 O On Off Switch 2 3 Operating Basics 2 1 Front Panel Controls and Indicators 2 1 CH A CH B 2 2 Filter 2 2 Focus Control 2 3 Gain 2 2 Horizontal Position 2 3 Installation Control 2 3 On O...

Page 248: ... Supply Board 8 16 Removing the Rear Panel 8 12 Repackaging 8 28 Identification Tag 8 28 Packaging Illustration 8 29 Repackaging for Shipment 8 28 Replaceable Electrical Parts List 9 1 Parts Ordering Information 9 1 Replaceable Mechanical Parts 11 1 Parts Ordering Information 11 1 Using the Replaceable Mechanical Parts List 11 1 Required Test Equipment Parade Display Test Connector 7 3 RGB YRGB Pa...

Page 249: ...5 11 Z Axis Control 5 11 Trace Rotation Control 2 3 Troubleshooting 8 17 Foldout Pages 8 17 Adjustment Locations 8 18 Assembly and Circuit Numbering 8 18 Circuit Board Illustrations 8 18 Diagrams 8 17 Parts Locating Charts 8 18 General Troubleshooting Techniques 8 20 High Voltage Power Supply 8 26 CRT Voltage Check 8 28 Focus Amplifier Check 8 26 Grid Drive Check 8 27 High Voltage Oscillator Check...

Page 250: ...witch 5 4 Filter Selection 5 6 Input Amplifiers 5 4 Sync Stripper 5 5 Vertical Output Diagram 2 Gain Cell 5 7 Gain Cell Amplifier 5 7 Second DC Restorer 5 7 Switchable Gain Amplifier 5 8 Vertical Output Amplifier 5 9 Vertical Position 2 2 Voltage Ranges 1 4 W Warm up Period 4 1 ...

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