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Tektronix 2215A, Instruction Manual

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Tektronix 2215A Instruction Manual Download Page 112

Replaceable  Electrical  Parts—2215A  Service

Component  No.

Tektronix 

Part  No.

Serial/Model  No. 
Eff 

Dscont

Name  &  Description

Mfr
Code

Mfr  Part  Number

A1Q285

151-0712-00

TRANSISTOR:SILICON,NPN

04713

SPS8223

A1Q302

151-0711-01

TRANSISTOR: NPN,SI,TO-92

04713

SPS8608M

A1Q303

151-0711-01

TRANSISTOR:NPN,SI.TO-92

04713

SPS8608M

A1Q327

151-0711-01

TRANSISTOR:NPN,St,TO-92

04713

SPS8608M

A1Q328

151-0711-01

TRANSISTOR:NPN,SI.TO-92

04713

SPS8608M

A1Q382

151-1042-00

SEMICOND  DVC SE:MATCHED  PAIR  FET

22229

S2089

A1Q384

151-0711-00

TRANSISTOR:SILICON.NPN

04713

SPS8224

A1Q397

151-0190-00

TRANSISTOR.SILICON.NPN

07263

S032677

A1Q402

151-0276-00

TRANSISTOR: SILICON, PNP

04713

2N5087

A1Q403

151-0276-00

TRANSISTOR :SILICON.PNP

04713

2N5087

A1Q413

151-0190-00

TRANSISTOR: SILICON, NPN

07263

S032677

A1Q419

151-0711-00

TRANSISTOR:SILICON,NPN

04713

SPS8224

A1Q420

151-0711-00

TRANSISTOR: SILICON. NPN

04713

SPS8224

A1Q421

151-0712-00

TRANSISTOR: SILICON, NPN

04713

SPS8223

A1Q422

151-0199-00

TRANSISTOR:SILICON,PNP

04713

SPS6866K

A1Q423

151-0424-00

TRANSISTOR:SILICON.NPN

04713

SPS8246

A1Q428

151-0711-00

TRANSISTOR:SILICON.NPN

04713

SPS8224

A1Q429

151-0712-00

TRANSISTOR: SILICON.NPN

04713

SPS8223

A1Q460

151-0712-00

TRANSISTOR:SILICON.NPN

04713

SPS8223

A1Q463

151-0712-00

TRANSISTOR:SILICON.NPN

04713

SPS8223

A1Q509

151-0188-00

TRANSISTOR: SILICON.PNP

04713

SPS6868

A1Q511

151-0188-00

TRANSISTOR:SILICON.PNP

04713

SPS6868

A1Q525

151-0190-00

TRANSISTOR:SILICON.NPN

07263

S032677

A1Q576

151-0199-00

TRANSISTOR: SILICON, PNP

04713

SPS6866K

A1Q578

151-0199-00

TRANSISTOR:SILICON.PNP

04713

SPS6866K

A1Q586

151-0198-00

TRANSISTOR:SILICON.NPN,SEL  FROM  MPS918

04713

SPS8802-1

A1Q756

151-0432-00

TRANSISTOR:SILICON,NPN

27014

T07391E2

A1Q770

151-0188-00

TRANSISTOR:SILICON,PNP

04713

SPS6868

A1Q775

151-0347-00

TRANSISTOR:SILICON.NPN

56289

2N5551

A1Q779

151-0350-00

TRANSISTOR:SILICON,PNP

04713

SPS6700

A1Q780

151-0190-00

TRANSISTOR:SILICON,NPN

07263

S032677

A1Q785

151-0347-00

TRANSISTOR:SILICON,NPN

56289

2N5551

A1Q789

151-0350-00

TRANSISTOR:SILICON,PNP

04713

SPS6700

A1Q804

151-0188-00

TRANSISTOR:SILICON,PNP

04713

SPS6868

A1Q814

151-0188-00

TRANSISTOR: SILICON,PNP

04713

SPS6868

A1Q825

151-0424-00

TRANSISTOR: SILICON, NPN

04713

SPS8246

A1Q829

151-0199-00

TRANSISTOR: SILICON, PNP

04713

SPS6866K

A1Q835

151-0199-00

TRANSISTOR:SILICON,PNP

04713

SPS6866K

A1Q840

151-0347-00

TRANSISTOR:SILICON,NPN

56289

2N5551

A1Q845

151-0350-00

TRANSISTOR:SILICON,PNP

04713

SPS6700

A1Q885

151-0443-00

TRANSISTOR:SILICON,PNP

04713

SPS7950

A1Q908

151-0164-00

TRANSISTOR.PNP.SI,TO-92

04713

2N2907A

A1Q928

151-0432-00

TRANSISTOR:SILICON.NPN

27014

T07391E2

A1Q930

151-0164-00

TRANSISTOR:PNP,SI,TO-92

04713

2N2907A

A1Q935

151-0506-00

SCR:SILICON

03508

C106B2X283

A1Q938

151-0276-00

TRANSISTOR:SILICON,PNP

04713

2N5087

A1Q939

151-0276-00

TRANSISTOR:SILICON,PNP

04713

2N5087

A1Q944

151-0432-00

TRANSISTOR :SILICON,NPN

*7014

T07391E2

A1Q946

151-0476-02

TRANSISTOR:SILICON,NPN,SEL

04713

ORD BY  DESCR

A1Q947

151-0476-02

TRANSISTOR:SILICON,NPN,SEL

04713

ORD  BY  DESCR

A1Q9070

151-1151-00

TRANSISTOR:MOSFE,N-CHANNEL,SI,TO-220

04713

MPT3N40

A1R100

315-0430-00

RES.,FXO,CMPSN:43 OHM,5%,0.25W

01121

CB4305

A1R101

315-0430-00

RES..FXD,CMPSN:43 OHM,5%,0.25W

01121

CB4305

REV  JUL  1984

8-9

Summary of Contents for 2215A

Page 1: ......

Page 2: ... SERVICE Tektronix National Marketing Center for Product Order Information contact your local Tektronix sales representative or in the U S call 1 800 426 2200 ext 41 In Oregon call collect 503 627 9000 ext 41 Tektronix National Marketing Center P O Box 500 D S Y6 088 Beaverton OR 97077 PLEASE CHECK FOR CHANGE INFORMATION AT THE REAR OF THIS MANUAL 2215A OSCILLOSCOPE SERVICE INSTRUCTION MANUAL Tekt...

Page 3: ...price change privileges are reserved INSTRUMENT SERIAL NUMBERS Each instrument has a serial number on a panel 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 manufact...

Page 4: ...TED CIRCUIT DESCRIP TIONS 3 1 GENERAL DESCRIPTION 3 2 DETAILED CIRCUIT DESCRIPTION 3 3 VERTICAL ATTENUATORS 3 3 VERTICAL PREAMPLIFIERS 3 4 Page SECTION 3 THEORY OF OPERATION cont CHANNEL SWITCH AND VERTICAL OUTPUT 3 5 TRIGGER AMPLIFIERS AND SWITCHING 3 7 A TRIGGER GENERATOR 3 8 A SWEEP GENERATOR AND LOGIC 3 9 ALTERNATE B SWEEP 3 11 HORIZONTAL 3 13 Z AXIS AMPLIFIER 3 14 POWER SUPPLY AND PROBE ADJUS...

Page 5: ...NCE ___ INTRODUCTION MAINTENANCE PRECAUTIONS OBTAINING REPLACEMENT PARTS MAINTENANCE AIDS Page SECTION 6 MAINTENANCE cont Page 6 1 INTERCONNECTIONS 6 10 6 2 TRANSISTORS AND 6 2 INTEGRATED CIRCUITS 6 11 6 2 SOLDERING TECHNIQUES ___ 6 12 6 2 REMOVAL AND REPLACEMENT 6 4 INSTRUCTIONS 6 13 6 4 REPACKAGING FOR SHIPMENT 6 20 6 4 SELECTABLE COMPONENTS 6 20 6 5 6 5 SECTION 7 OPTIONS 6 5 SECTION 8 REPLACEAB...

Page 6: ... circuit board illustrations 9 4 Basic block diagram 9 5 Detailed block diagram 9 6 A2 Attenuator board 9 7 Al Main board 9 8 Circuit view of Al Main board 9 9 A3 Front Panel board 9 10 Circuit view of A3 Front Panel board 9 11 A4 Timing board 9 12 A5 Altn Sweep board 9 13 A6 Filter board LIST OF TABLES Table Page 1 1 Electrical Characteristics 1 2 1 2 Environmental Characteristics 1 6 1 3 Physica...

Page 7: ...ating can render an electric shock DANGER indicates a personal injury hazard immediately ac cessible as one reads the marking Symbols in This Manual This symbol indicates where applicable cautionary or other information is to be found For maximum input voltage see Table 1 1 Symbols As Marked on Equipment DANGER High voltage Protective ground earth terminal ATTENTION Refer to manual Power Source Th...

Page 8: ...gerous voltages exist at several points in this product To avoid personal injury do not touch exposed connections or components while power is on Disconnect power before removing protective panels sol dering or replacing components Power Source This product is intended to operate from a power source that does not apply more than 250 volts rms between the supply conductors or between either supply ...

Page 9: ...2215A Service 4735 01 vi The 2215A Oscilloscope ...

Page 10: ...rt numbers and information about instrument ac cessories refer to the tabbed Accessories part of the Re placeable Mechanical Parts section in the back of this manual The service manual and all other optional accessories are orderable from Tektronix Inc A local Tektronix Field Office representative or the Tektronix product catalog can provide ordering and product information PERFORMANCE CONDITIONS ...

Page 11: ... or less 8 Rise time is calculated from the formula 0 35 Bandwidth 3 dB 0 C to 50 O 2 mV per Division to 5 Y per Division 7 0 ns or less 8 Bandwidth 3 dB 0 C to 35 C 5 mV per Division to 5 V per Division Dc to at least 60 MHz Measured with a vertically centered 6 division reference signal from a 50 Q source driving a 50 U coaxial cable that is terminated in 50 J2 both at the input connector and at...

Page 12: ...ntrol is Rotated 1 0 division or less 3 Trace Shift with Invert 1 5 division or less 3 Channel Isolation Greater than 100 to 1 at 25 MHz TRIGGER SYSTEM A TRIGGER Sensitivity P P AUTO and NORM TV LINE Modes Internal External trigger signal from a 50 0 source driving a 50 Q coaxial cable terminated in 50 S 2at the input connector 5 MHz 60 MHz 0 3 div 1 0 div External 40 mV 150 mV Lowest Useable Freq...

Page 13: ...center 8 divisions Exclude the first 25 ns of the sweep for magnified sweep speeds and anything beyond the 100th magnified division 0 C to 50 C 4 a 5 8 POSITION Control Range Start of sweep to 10th division in XI or 100th divisions in X I0 will position past the center vertical graticule line Sweep Linearity 7 Linearity measured over any 2 of the center 8 divisions With magnifier in X I0 exclude t...

Page 14: ...Vertical Deflection System 3 Bandwidth 3 dB Measured with a 5 division X Axis Dc to at least 2 MHz reference signal Y Axis Same as Vertical Deflection System 3 Phase Difference Between X and Y Axis Amplifiers 3 from dc to 100 kHz 3 With dc coupled inputs PROBE ADJUST Output Voltage of PROBE ADJUST 0 5 V 5 Jack Repetition Rate 1 kHz 20 a Z AXIS INPUT Sensitivity 5 V causes noticeable modulation Use...

Page 15: ...ing To 4 500 m 15 000 ft Maximum operating temperature decreased 1 C per 1 000 ft above 5 000 ft Nonoperating To 15 000 m 50 000 ft Humidity Operating and Nonoperating 5 cycles 120 hours referenced to MIL T 28800C paragraph 4 5 5 1 2 2 for Type III Class 5 instruments Operating and non operating at 95 0 to 5 relative humidity Operating at 50 C and 30 C Non operating at 30 C to 60 C Vibration Opera...

Page 16: ...ch 5 2 kg 11 5 lb Domestic Shipping Weight 7 3 kg 16 0 lb Height With Feet and Handles 137 mm 5 4 in Width With Handle 360 mm 14 2 in Without Handle 327 mm 12 9 in Depth With Front Cover 445 mm 17 5 in Without Front Cover 440 mm 17 3 in With Handle Extended 511 mm 20 1 in 1 7 Figure 1 1 Maximum input voltage vs frequency derating curve for CH 1 OR X CH 2 OR Y and EXT INPUT connectors ...

Page 17: ...Specification 2215A Service Dimensions are in inches m m u 4735 40 1 8 Figure 1 2 Physical dimensions of the 2215A Oscilloscope ...

Page 18: ...e Accessories page at the back of this manual Contact your Tektronix representative or local Tektronix Field Office for additional power cord information LINE FUSE The instrument fuse holder is located on the rear panel see Figure 2 2 and contains the line fuse The following procedure can be used to verify that the proper fuse is in stalled or to install a replacement fuse Plug Configuration Usage...

Page 19: ...ocation operation and function of the instrument s controls connectors and indicators DISPLAY POWER AND PROBE ADJUST Refer to Figure 2 3 for location of items 1 through 8 f 1 Internal Graticule Eliminates parallax viewing error between the trace and graticule lines Rise time ampli tude and measurement points are indicated at the left edge of the graticule f 2 j POWER Switch Turns instrument power ...

Page 20: ...eflection factor selected when us ing either a 1X probe or a coaxial cable 10X PROBE Indicates the deflection factor selected when using a 10X probe n o VOLTS DIV Variable Controls When rotated coun terclockwise out o f their calibrated detent positions these controls provide continuously variable uncalibrated deflection factors between the calibrated settings of the VOLTS DIV switches M IJ POSITI...

Page 21: ...Channel 2 input signals at sweep speeds from 0 5 ms per division to 0 5 ns per division BW LIMIT When pressed in this button switch limits the bandwidth of the vertical amplifier and the A Trigger system to approximately 10 MHz Button must be pressed a second time to release it and regain full 60 MHz bandwidth operation Provides a method for reducing interference from high frequency signals when v...

Page 22: ... when ALT HORIZONTAL MODE is selected 24 B DELAY TIME POSITION Control Selects the amount of delay time between the start of the A Sweep and the start of the B Sweep Delay time is variable from 0 5 times to 10 times the A SEC DIV switch setting TRIGGER Refer to Figure 2 6 for location of items 25 through 34 25J A TRIGGER Mode Switches Three section switch that determines the trigger mode for the A...

Page 23: ...nal that is coupled to the input of the A Trig ger circuit INT Permits triggering on signals that are applied to the CH 1 OR X and CH 2 OR Y input connec tors The source of the internal signal is selected by the A B INT switch LINE The power source waveform is the source of the trigger signal This trigger source is useful when vertical input signals are time related multi ple or submultiple to the...

Page 24: ...Control Selects the amplitude point on the trigger signals at which the sweep is trig gered When fully clockwise B RUNS AFTER DLY the B Sweep circuit runs immediately following the de lay time selected by the A SEC DIV and the B DELAY TIME POSITION control 34 VAR HOLDOFF Control Provides continuous con trol of holdoff time between sweeps Increases the holdoff time by at least a factor of 10 This c...

Page 25: ...s allows the circuit under test to operate with a minimum of change from its normal condition as measurements are being made Coaxial cables may also be used to connect signals to the input connectors but they may have considerable effect on the accuracy of a displayed waveform To maintain the original frequency characteristics of an applied signal only high quality low loss coaxial cables should b...

Page 26: ... B SEC DIV SEC DIV Variable X I0 Magnifier B DELAY TIME POSITION Off midrange Midrange A 0 5 ms CAL detent Off knob in Fully counterclockwise B TRIGGER SLOPE OUT LEVEL Fullyclockwise Verify that the POWER switch is OFF push button out then plug the power cord into the power source outlet BASELINE TRACE A TRIGGER VAR HOLDOFF Mode SLOPE LEVEL A B INT A SOURCE A EXT COUPLING NORM P P AUTO OUT Midrang...

Page 27: ... instru ment to the CH 1 and CH 2 input connectors 3 Set both VOLTS DIV switches to 10 mV and set both Input Coupling switches to DC 4 Select CH 1 VERTICAL MODE and insert the tip of the Channel 1 probe into the PROBE ADJUST output jack 5 Using the approximately 1 kHz PROBE ADJUST square wave signal as the input obtain a 5 division display of the signal 6 Set the A SEC DIV switch to display severa...

Page 28: ...ram and the two block diagrams INTEGRATED CIRCUIT DESCRIPTIONS Digital Logic Conventions Digital logic circuits perform many functions within the instrument Functions and operation of the logic circuits are represented by logic symbology and terminology Most logic functions are described using the positive logic convention Positive logic is a system of notation whereby the more pos itive of two le...

Page 29: ...ct to the A trace when Alt Hori zontal Mode is selected The A Trigger circuitry uses either an Internal Trigger sig nal an External Trigger signal or a Line Trigger signal ob tained from the ac power line to develop the gate signal for the A Sweep Generator The B Trigger circuitry uses only the Internal Trigger signal to gate the B Sweep Generator A P P Auto Trigger circuit ensures that the range ...

Page 30: ...Preregulator produces approximately 43 V dc from the ac power line which is used to drive the 20 kHz Inverter stage The transformer secondary windings provide various ac lev els that are rectified and filtered to produce the operating voltages A high voltage multiplier circuit produces the ac celerating focus and cathode potentials required by the crt A front panel PROBE ADJUST output is provided ...

Page 31: ...determine which contacts of SI 0 are closed and therefore whether the Paraphase Amplifier will receive a 1 2 5 4 or f 10 signal Paraphase Amplifier The Paraphase Amplifier converts the single ended sig nal from the Gain Switching Network into a differential sig nal for application to the Vertical Preamplifier Included in the circuitry is switching that provides extra gain for the 2 mV position of ...

Page 32: ...ch circuitry shown on Diagram 2 uti lizes the front panel VERTICAL MODE switches to select the crt display format See Figure 3 2 for a block diagram of the circuit FROM CHANNEL 1 ATTENUATOR FROM CHANNEL 2 ATTENUATOR TO DELAY LIN E DRIVER 4 7 3 5 0 2 Figure 3 2 Block diagram of the Channel Switching circuitry CHANNEL 2 DISPLAY ONLY The CH 2 position of S550 holds the R input of U540A LO through CR5...

Page 33: ...ertical deflection plates of the crt Signals from the Delay Line are applied to a differential amplifier composed of Q230 and Q231 with low and high frequency compensation provided by the RC net works connected between the emitters Thermal compensa tion is provided by RT236 and overall gain is set by R233 The output stage of the Amplifier utilizes two totem pole transistor pairs Q254 Q256 and Q255...

Page 34: ...everse biases CR393 and CR399 to prevent external trigger signals or the line trigger signal from reach ing the A Trigger Generator Signals from the Internal Trig ger Amplifier are passed to the A Trigger Generator through forward biased CR372 CHANNEL 1 For triggering from Channel 1 the A B INT switch is set to CH 1 The XY line connected to S555 will be at ground potential and one input of U555B w...

Page 35: ...set to EXT When the A SOURCE switch is not set to EXT the base emitter junction of Q384 will be reverse biased and the Amplifier will be disabled Line Trigger Amplifier The Line Trigger Amplifier supplies a line frequency trig ger signal to the A Trigger Generator when the A SOURCE switch is in the LINE position Transformer T390 in the Power Supply provides a line frequency signal through R397 to ...

Page 36: ...d is not selected the TV Trig Enable line connected to R402 and R473 is LO Transistors Q402 and Q403 are biased off and a LO is placed on one input of U480A by R474 This LO input will cause U480A to invert the output from U480D With Q403 off a LO will be placed on one input of U480B by R405 and U480B will also act as an inverter The A Trigger signal at the output of U480B is therefore the same as ...

Page 37: ... constant reference voltage at one end of R721 independent of the circuit load The voltage applied to the timing resistors varies with the rotational position of R721 the SEC DIV Variable control A fixed dc voltage is applied to the noninverting input of the operational amplifier and feedback resistors R717 and R718 establish double that voltage at the anode of VR720 A Sweep Logic The A Sweep Logi...

Page 38: ...Hori zontal Amplifier to provide the B Sweep horizontal deflec tion on the crt The Alternate B Sweep circuitry also produces the sweep switching signals that control the dis play of the A and B Sweeps and the gate signals used by the Intensity and Z Axis circuits to establish the crt unblanking and intensity levels needed for producing both the A Intensified and B Sweep displays The B Sweep ramp i...

Page 39: ...il the Alt Sync line goes from HI to_LO to change the U680C U680D flip flip output states The R input of U670A will then be LO caus ing the Q output to be HI and reset the Generator Depend ing on the settings of the A and B SEC DIV switches the A Sweep may end before the B Sweep If this occurs the Alt Sync line will go LO at the end of the A Sweep and cause an immediate resetting of the Generator ...

Page 40: ...ow through CR817 HORIZONTAL The Horizontal Amplifier circuit shown on Diagram 6 provides the output signals that drive the horizontal crt de flection plates Signals applied to the Horizontal Preamplifier can come from either the A or the B Miller Sweep Generator for sweep deflection or from the XY Amplifier when X Y display mode is selected Sweep switching is under control of the Alternate Display...

Page 41: ...igh sweep rates the ramp is coupled through C779 to the emitter of Q779 This provides additional pull up output current to drive the crt at high sweep rates The amplifier consisting of Q780 Q785 and Q789 drives the left crt horizontal deflec tion plate in the same manner as described above with ze ner diode VR782 level shifting the collector signal of Q780 The BEAM FIND function is implemented whe...

Page 42: ...blanked the output of the Z Axis Amplifier drops to a level that reduces the crt beam current below viewing intensity during the chop switching transition Theory of Operation 2215A Service For an X Y display CR818 CR817 and CR816 are re verse biased The XY signal is LO to reverse bias CR551 and allow current in R820 to flow through CR820 The crt intensity is then controlled by the A INTENSITY pote...

Page 43: ...d more crt writing beam current flows During periods that C854 is charging the crt control grid voltage is held constant by the long time constant discharge path of C855 through R860 Fast rise and fast fall transitions of the Z Axis output sig nal are coupled to the crt control grid through C855 to start the crt writing beam current toward the new intensity level The Dc Restorer output level then ...

Page 44: ... the output current increases until a sufficiently large voltage drop is developed across R907 to invoke the current limit mode The current limit amplifier holds the output current below the current limit threshold of approximately 1 A When the voltage across C940 reaches approximately 43 V the voltage amplifier starts controlling the duty cycle of Q9070 and the Preregulator will not limit current...

Page 45: ...drive transformer T944 will charge C944 negative with respect to the Inverter circuit floating ground common level Crt Supply High voltage multiplier U975 utilizes the 2 kV winding of T948 to generate 12 kV to drive the crt anode It also uses an internal half wave rectifier diode to produce 2 kV for the crt cathode The 2 kV supply is filtered by a low pass filter composed of C975 C976 R976 R978 an...

Page 46: ...n be performed both in the sequence presented and in its en tirety to ensure that control setting changes will be correct for ensuing steps TEST EQUIPMENT The test equipment listed in Table 4 1 is a complete list of the equipment required to accomplish both the Perfor mance Check Procedure in this section and the Adjust ment Procedure in Section 5 To assure accurate measurments it is important tha...

Page 47: ... amplitude signal levels 1 V to 60 V Repetition rate 1 kHz Fast rise signal level IV Repetition rate 1 MHz Rise time 1 ns or less Flatness 0 5 Vertical and horizontal checks and adjustments TEKTRONIX PG 506 Calibration Generator 8 2 Leveled Sine Wave Generator Frequency 250 kHz to above 70 MHz Output amplitude variable from 10 mV to 5 V p p Output impedance 50 Q Reference frequency 50 kHz Amplitud...

Page 48: ...ONIX 2213A Oscilloscope 12 DC Voltmeter Range 0 to 2500 V calibrated to 1 accuracy at 2000 V High voltage power supply check Triplett Model 630 NA 13 Screwdriver Length 3 in shaft Bit Size 3 32 in Adjust variable resistors Xcelite R 3323 14 Low Capacitance Alignment Tool Length 1 in shaft Bit size 3 32 in Adjust variable capacitors J F D Electronics Corp Adjustment Tool Number 5284 Requires a TM 5...

Page 49: ...control to the CAL detent and con tinue with the 50 mV check c Move the cable from the CH 1 OR X input connector to the CH 2 OR Y input connector Set the VERTICAL MODE switch to CH 2 Table 4 2 Deflection Accuracy Limits VOLTS DIV Standard Vertical Accuracy Switch Amplitude Deflection Limits Setting Signal Divisions Divisions 2 mV 10 mV 5 4 85 to 5 15 5 mV 20 mV 4 3 88 to 4 12 10 mV 50 mV 5 4 85 to...

Page 50: ...on display c Increase the generator output frequency until the dis play amplitude decreases to 4 2 divisions d CHECK Generator output frequency is between 8 5 and 11 5 MHz e Disconnect the test equipment from the instrument 4 Check Common Mode Rejection Ratio a Set BW LIMIT Off button out CH 2 VOLTS DIV 10 mV INVERT On button in b Connect the leveled sine wave generator output via a 50 52 cable a ...

Page 51: ...CAL MODE VOLTS DIV both VOLTS DIV Variable both INVERT Channel 2 Input Coupling A SEC DIV CH 1 1 V CAL detent Off button out GND 0 1 ns f Move the cable from the CH 1 OR X input connector to the CH 2 OR Y input connector g Set VERTICAL MODE CH 1 Channel 1 Input Coupling GND Channel 2 Input Coupling DC h CHECK Display amplitude is 0 05 division or less b Connect the leveled sine wave generator outp...

Page 52: ...N Fully counterclockwise B TRIGGER SLOPE OUT LEVEL Fully clockwise A TRIGGER VAR HOLDOFF NORM Mode NORM SLOPE OUT LEVEL Midrange A B INT VERT MODE A SOURCE INT A EXT COUPLING DC 10 PROCEDURE STEPS 1 Check Timing Accuracy and Linearity a Connect the time mark generator output via a 50 0 cable and a 50 0 termination to the CH 1 OR X input connector b Select 50 ns time markers from the time marker ge...

Page 53: ...ble 4 4 under the X I0 Magnified column I Set HORIZONTAL MODE B A SEC DIV 0 1 ns B SEC DIV 0 05 ns X I0 Magnifier Off knob in m Repeat parts b through k for the B Sweep Keep the A SEC DIV switch one setting slower than the B SEC DIV switch 2 Check Variable Range a Set HORIZONTAL MODE A and B SEC DIV SEC DIV Variable X I0 Magnifier A TRIGGER Mode A 0 2 ms Fully counterclockwise Off knob in P P AUTO...

Page 54: ...ertical graticule line o CHECK The B DELAY TIME POSITION dial setting is between 8 905 and 9 095 p Repeat parts I through n for the remaining A and B SEC DIV and time mark generator setting combinations shown in Table 4 5 Table 4 5 Settings for Delay Time Accuracy Checks A SEC DIV B SEC DIV Time Mark Switch Setting Switch Setting Generator Setting 0 5 ms 0 05 ms 0 5 ms 5 M S 0 5 ms 5 M S 0 5 ms 50...

Page 55: ...ting the Hori zontal POSITION control fully clockwise d CHECK The 11th time marker can be positioned to the left of the center vertical graticule line by rotating the Horizontal POSITION control fully counterclockwise e Select 50 s time markers from the time mark generator f Align the 3rd time marker with the center vertical grati cule line using the Horizontal POSITION control g Set the X I0 Magn...

Page 56: ...EVEL Midrange A B INT CH 1 A SOURCE INT A EXT COUPLING DC PROCEDURE STEPS 1 Check Internal Triggering a Connect the leveled sine wave generator output via a 50 fi cable and a 50 fi termination to the CH 1 OR X input connector c Set the CH 1 VOLTS DIV switch to 50 mV d CHECK Stable display can be obtained by adjusting the A TRIGGER LEVEL control for each switch combination given in Table 4 6 Table ...

Page 57: ...IGGER LEVEL control is rotated p Disconnect the test equipment from the instrument 2 Check External Triggering a Set VERTICAL MODE CH 1 CH 1 VOLTS DIV 5 mV HORIZONTAL MODE A A SEC DIV 0 1 ns X I0 Magnifier Off knob in A SOURCE EXT b Connect the leveled sine wave generator output via a 50 0 cable a 50 0 termination and a dual input coupler to both the CH 1 or X and EXT INPUT connectors c Set the le...

Page 58: ... Set the Channel 1 Input Coupling switch to DC e CHECK READY LED goes out and a single sweep occurs g CHECK Single sweep trace occurs and the READY LED illuminates briefly every time the SGL SWP RESET button is pressed in and released NOTE The A INTENSITY control may require adjustment to observe the single sweep trace h Disconnect the test equipment from the instrument 4 13 ...

Page 59: ...al Z Axis Operation a Connect the leveled sine wave generator output via a 50 0 cable and a T connector to the CH 1 OR X input con nector Then connect a 50 0 cable and a 50 0 termination from the T connector to the EXT Z AXIS INPUT connector on the rear panel b Set the generator to produce a 5 V 50 kHz signal c CHECK For noticeable intensity modulation The positive part of the sine wave should be ...

Page 60: ...ish both the Perfor mance Check Procedure in section 4 and the Adjustment Procedure in this section To assure accurate measure ments it is important that test equipment used for making these checks meet or exceed the specifications described in Table 4 1 When considering use of equipment other than that recommended utilize the Minimum Specification col umn to determine whether available test equip...

Page 61: ...g any procedure in this section set the POWER switch to ON and allow a 20 minute warm up period The most accurate display adjustments are made with a stable well focused low intensity display Unless otherwise noted adjust the INTENSITY FOCUS and TRIGGER LEVEL controls as needed to view the display Table 5 1 Adjustment Interactions A d ju s tm e n ts o r R e p la c e m e n ts Made A d ju s tm e n t...

Page 62: ... Bandwidth 5 11 15 Check Channel Isolation 5 11 16 Check Common Mode RejectionR atio 5 12 17 Check Input Gate C urrent 5 12 Horizontal Page 1 Adjust Horizontal Amplifier Gain 5 13 2 Adjust X I0 Horizontal Amplifier Gain 5 14 3 Adjust Magnifier Registration 5 14 4 Check Position Range 5 14 5 Check Variable Range 5 14 6 Adjust Delay Dial Timing 5 14 7 Adjust High Speed Tim ing 5 15 8 Adjust 5 ns Tim...

Page 63: ...F NORM Mode P P AUTO SLOPE OUT LEVEL Midrange A B INT VERT MODE A SOURCE INT PROCEDURE STEPS 1 Check Adjust Power Supply DC Levels R938 a Connect the digital voltmeter low lead to chassis ground and connect the volts lead to the 8 6 V supply TP961 b CHECK Voltmeter reading is 8 56 to 8 64 V If the reading is within these limits skip to part d c ADJUST The 8 6 V Adj potentiometer R938 for a voltmet...

Page 64: ... generator to produce a 50 kHz 4 division display d ADJUST Astig R874 and the front panel FOCUS control for the best defined waveform e Disconnect the test equipment from the instrument 5 Adjust Trace Alignment a Set the Channel 1 Input Coupling switch to GND and position the trace to the center horizontal graticule line b ADJUST The front panel TRACE ROTATION con trol for optimum alignment of the...

Page 65: ...on in 5 mV CAL detent Off button out GND 1 Adjust Attenuator Step Balance RIO and R60 a Position the trace on the center horizontal graticule line using the Channel 1 POSITION control b ADJUST Ch 1 Step Bal RIO to set the trace on the center horizontal graticule line Horizontal POSITION Midrange HORIZONTAL MODE A A SEC DIV 0 5 ms SEC DIV Variable CAL detent X I0 Magnifier Off knob in c Set the CH ...

Page 66: ...e R75 a Set the VERTICAL MODE switch to CH 2 b Position the trace on the center horizontal graticule line using the Channel 2 POSITION control c Set the INVERT button to On button in d ADJUST Ch 2 Invert Bal R75 to set the trace to the center horizontal graticule line e Set the INVERT button to Off button out f Repeat parts b through e until there is no trace shift when switching the INVERT button...

Page 67: ...shift is observed repeat Step 2 of this procedure I Set the VERTICAL MODE switch to CH 2 m CHECK That no trace shift occurs when switching between the 5 mV and 2 mV positions of the CH 2 7 Check Deflection Accuracy and Variable Range a Set VERTICAL MODE CH 1 Input Coupling both DC b CHECK Deflection accuracy is within the limits given in Table 5 3 for each CH 1 VOLTS DIV switch setting and corresp...

Page 68: ...V switch to 1 V f Set the generator to produce a 5 division display Adjustment Procedure 2215A Service Table 5 4 Attenuator Compensation Adjustments Adjustment Channel 1 Channel 2 10X LF Comp C12 C62 10X Input C C11 C61 100X LF Comp C5 C55 100X Input C C4 C54 g ADJUST The 100X LF Comp capacitor for best front corner h Replace the 50 Q cable and 50 fi termination with the 10X probe supplied with th...

Page 69: ...peeds of 2 ms per division or faster the 0 1 division on the displayed signal trace alternations occur too rapidly to be observed f ADJUST DL Comp 1 R240 and DL Comp 2 R241 for best flat top on the front corner 11 Check Chop Operation a Set BOTH and CHOP 1 ms VERT MODE EXT VERTICAL MODE A SEC DIV A B INT A SOURCE g Repeat parts e and f until no further improvement is noted h Set the CH 1 VOLTS DIV...

Page 70: ...DIV both 2 mV b Set the generator to produce a 50 kHz 6 division display c CHECK Display amplitude is 4 2 divisions or greater as the generator output frequency is increased up to the value shown in Table 5 5 for the corresponding VOLTS DIV switch setting Table 5 5 Settings for Bandwidth Checks VOLTS DIV Generator Switch Setting Output Frequency 2 mV 50 MHz 5 mV to 5 V 60 MHz d Repeat parts b and ...

Page 71: ...produce a 50 kHz 6 division display j Set the VERTICAL MODE switch to BOTH k Adjust the CH 1 or CH 2 VOLTS DIV Variable control for minimum display amplitude I Set the VERTICAL MODE switch to CH 1 m Set the generator to produce a 25 MHz 6 division display n Set the VERTICAL MODE switch to BOTH o CHECK Display amplitude is 0 6 division or less p Disconnect the test equipment from the instrument 17 ...

Page 72: ...EC DIV Variable X I0 Magnifier B DELAY TIME POSITION Midrange A 0 1 ms CAL detent Off knob in Fully counterclockwise B TRIGGER SLOPE OUT LEVEL Fullyclockwise A TRIGGER VAR HOLDOFF Mode SLOPE LEVEL A B INT A SOURCE NORM P P AUTO OUT Midrange VERT MODE INT 1 Adjust Horizontal Amplifier Gain R740 and R730 a Connect 0 1 ms time markers from the time mark generator via a 50 0 cable and a 50 0 terminati...

Page 73: ...ing the Hori zontal POSITION control fully clockwise b Position the middle time marker to the center vertical graticule line using the Horizontal POSITION control c Set the X I0 Magnifier to Off knob in d ADJUST Mag Regis R749 to position the middle time marker to the center vertical graticule line 5 Check Variable Range a Set Horizontal POSITION A SEC DIV SEC DIV Variable X I0 Magnifier Midrange ...

Page 74: ... markers between the 2nd and 4th ver tical graticule lines should be aligned within 0 14 division If not a slight compromise between timing and linearity should be made by readjusting the 5 ns Timing capacitor C775 b Select 0 1 ms time markers from the time mark generator c ADJUST A High Speed Timing C703 for 1 time marker per division over the center 8 divisions d Set HORIZONTAL MODE B A SEC DIV ...

Page 75: ...trol to align the first time marker that is 25 ns beyond the start of the sweep with the second vertical graticule line j CHECK Timing accuracy is within 4 0 32 division at the 10th vertical graticule line and linearity is within 7 0 14 division over any 2 of the center 8 divisions Exclude any portion of the sweep past the 100th magnified division k Repeat parts i and j for the remaining A SEC DIV...

Page 76: ...ng Generator Setting 0 5 ms 0 05 ms 0 5 ms 5 M S 0 5 ms 5 ms 0 5 ms 50 ms 0 5 ms 5 ms 0 5 ms 5 ms 0 5 s 50 ms 0 5 s p Set A SEC DIV 5 ns B SEC DIV 0 5 ns B DELAY TIME POSITION 1 00 q Select 5 mS time markers from the time mark generator r Adjust the Horizontal POSITION control so that the rising edge of the displayed time marker is aligned with the center vertical graticule line s Without changing...

Page 77: ...horizontal display at an output frequency of 50 kHz c Increase the generator output frequency to 2 MHz d CHECK Display is at least 3 5 horizontal divisions e Disconnect the test equipment from the instrument 14 Check A Sweep Holdoff a Set HORIZONTAL MODE A A SEC DIV 1 ms VAR HOLDOFF NORM b Connect the test oscilloscope and its 10X probe tip to the front end of R707 toward the front panel which is ...

Page 78: ...ND ground and the high volts lead to W4000 1 Alt Sweep Logic circuit board connector to the Main circuit board Horizontal c CHECK The offset voltage reading is less than 80 POSITION Midrange mV Note the reading for use in part e HORIZONTAL MODE A A and B SEC DIV 1 ms SEC DIV Variable CAL detent d Set the A B INT switch to CH 1 X I0 Magnifier Off knob in B DELAY TIME POSITION Fully counterclockwise...

Page 79: ...P Auto Trigger Centering R434 and R435 a Set A TRIGGER SLOPE OUT A TRIGGER LEVEL Fully clockwise b Set the generator to produce a 50 kHz 5 division display c Set the CH 1 VOLTS DIV switch to 0 5 V d ADJUST Auto R434 so that the vertical dis play just solidly triggers on the positive peak of the signal e Set A TRIGGER SLOPE IN A TRIGGER LEVEL Fully counterclockwise f ADJUST Auto R435 so that the di...

Page 80: ...ODE a Set CH 1 VOLTS DIV A SEC DIV X I0 Magnifier A TRIGGER Mode 0 5 V 20 ms Off knob in NORM n Move the cable from the CH 2 OR Y input connector to the CH 1 OR X input connector o Repeat parts d through f p Disconnect the test equipment from the instrument 6 Check External Triggering a Set VERTICAL MODE CH 1 CH 1 VOLT DIV 20 mV HORIZONTAL MODE A A SEC DIV 0 1 ms X I0 Magnifier Off knob in A SOURC...

Page 81: ...te and remain on d Set the Channel 1 Input Coupling switch to DC e CHECK READY LED goes out and a single sweep occurs NOTE The A INTENSITY control may require adjustment to observe the single sweep trace f Press in the SGL SWP RESET button several times g CHECK Single sweep trace occurs and the READY LED illuminates briefly every time the SGL SWP RESET button is pressed in and released h Disconnec...

Page 82: ... AXIS INPUT connector on the rear panel b Set the generator to produce a 5 V 50 kHz signal Horizontal POSITION HORIZONTAL MODE A SEC DIV SEC DIV Variable X I0 Magnifier Midrange A 20 is CAL detent Off knob in c CHECK For noticeable intensity modulation The positive part of the sine wave should be of lower intensity than the negative part d Disconnect the test equipment from the instrument 2 Check ...

Page 83: ...ic voltage from your body by wear ing a grounded antistatic wrist strap while handling these components Servicing static sensitive components or as semblies should be performed only at a static free work sta tion by qualified service personnel 4 Nothing capable of generating or holding a static charge should be allowed on the work station surface 5 Keep the component leads shorted together when ev...

Page 84: ...gent with 95 water Before using any other type of cleaner consult your Tektronix Service Center or representative Exterior INSPECTION Inspect the external portion of the instru ment for damage wear and missing parts use Table 6 2 as a guide Instruments that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance Deficiencies found th...

Page 85: ...solder defective connections Determine cause of burned items and repair Repair defective circuit runs Resistors Burned cracked broken or blistered Replace defective resistors Check for cause of burned component and repair as necessary Solder Connections Cold solder or rosin joints Resolder joint and clean with isopropyl alcohol Capacitors Damaged or leaking cases Corroded solder on leads or termin...

Page 86: ...ors when cleaning contacts 2 The SEC DIV switch is comprised of rotary activated contacts Use only hot deionized or distilled water 55 C 131 F to clean the timing switch in this instrument Tap water contains impurities which are left as residu als after evaporation a Spray hot water into the slots at the top of each switch housing while rotating the switch control knob Spray only for approximately...

Page 87: ...e diagram with which the board is first associated Also provided in the Diagrams section is an illustration of the bottom side of the Main circuit board This drawing facilitates troubleshooting by showing the connection pads and the location of components that are mounted on the top side of the board Probing of Main board component signals that are inaccessible from the top side can be achieved wi...

Page 88: ...ed on the side of the capacitor body White ceramic capacitors are color code in picofarads using a modified EIA code Dipped tantalum capacitors are color coded in microfarads The color dot indicates both the positive lead and the voltage rating Since these capacitors are easily destroyed by reversed or excessive voltage be careful to observe the polarity and voltage rating DIODE COLOR CODE The cat...

Page 89: ...t this instrument If it is operated with the cabinet removed do not touch exposed connections or components 4 Check Instrument Performance and Adjustment Check the performance of either those circuits where trouble appears to exist or the entire instrument The appar ent trouble may only be the result of misadjustment Com plete performance check and adjustment instructions are given in Sections 4 a...

Page 90: ...anges from initial setup required to obtain the given waveforms and voltages are located on the waveform diagram page W A R N I N G To avoid electric shock always disconnect the instru ment from the power input source before removing or replacing components 9 Check Individual Components The following procedures describe methods of checking individual components Two lead components that are sol der...

Page 91: ...ge the diode Checks on diodes can be per formed in much the same manner as on transistor emitter to base junctions use a dynamic tester such as the TEKTRONIX 576 Curve Tracer DIODES A diode can be checked for either an open or a shorted condition by measuring the resistance between ter minals with an ohmmeter set to a range having a low inter nal source current such as the R X 1 Ml range The diode...

Page 92: ...d in this instrument These parts are manufactured or selected by Tektronix Inc to meet specific performance requirements or are manufactured for Tektronix Inc in accordance with our specifications The various manufacturers can be identified by referring to the Cross Index Mfr Code Number to Manufacturer at the be ginning of the Replaceable Electrical Parts list Most of the mechanical parts used in...

Page 93: ... from the ac power source outlet Tektronix Part Number 006 5953 00 12 IX Probe Power supply ripple check TEKTRONIX P6101 Probe IX Part Number 010 61 QI 03 13 Bayonet Ground Assembly Signal interconnection Tektronix Part Number 013 0085 00 TRANSISTORS AND INTEGRATED CIRCUITS Transistors and integrated circuits should not be re placed unless they are actually defective If unsoldered from the circuit...

Page 94: ...e solder joint Apply only enough solder to make a firm joint After soldering clean the area around the solder connection with an approved flux removing solvent such as isopropyl alcohol and allow it to air dry Attempts to unsolder remove and resolder leads from the component side o f a circuit board may cause damage to the reverse side o f the circuit board The following techniques should be used ...

Page 95: ...nd two screws from the rear panel Then remove the rear panel 3 Pull the front panel and attached chassis forward and out of the cabinet To reinstall the cabinet perform the following steps 4 Slide the chassis frame into the cabinet from the front until the cabinet is fully into the front panel groove and the rear of the cabinet is flush with the rear of the chassis 5 Align the rear panel and the s...

Page 96: ...d to the High Voltage Multiplier disconnected in step 2 11 Reconnect the four deflection plate wires and the Trace Rotation connector disconnected in step 1 Power Supply Shield To remove the Power Supply shield perform the follow ing steps 1 Remove the screw from the plastic power supply cover on the bottom section of the Main circuit board Press gently on the rear of the cover and slide it forwar...

Page 97: ...he plastic holder attached to the Power Supply shield Maintenance 2215A Service 5 Resolder the 27 pins to the Main circuit board unsol dered in step 1 Attenuator Circuit Board To remove the Attenuator circuit board perform the fol lowing steps 1 Use a 1 16 inch Hex key wrench to loosen the set screws on both the CH 1 and the CH 2 VOLTS DIV Variable knobs and remove the knobs 2 Set the CH 1 and the...

Page 98: ...wrench to loosen the set screw of the SEC DIV Variable knob 2 Lock the A and B SEC DIV knobs together and note the position for reinstallation reference Use a 1 4 inch nut driver to remove the nut securing the B SEC DIV knob pull off the knob and collet from the shaft assembly 3 Use a 1 16 inch Hex key wrench to loosen two set screws securing the A SEC DIV dial to the shaft assembly 4 Remove the f...

Page 99: ...rocedure and to steps 9 and 10 of the Tim ing Circuit Board reinstallation procedure 7 Insert the three switch shafts through the holes in both the Front Panel circuit board and the front panel refer to the Attenuator Circuit Board and the Timing Circuit Board reinstallation procedures 8 Reinstall the four screws holding the Bottom shield to the Main circuit board removed in step 3 9 Complete rein...

Page 100: ...t panel holes 14 Reinstall three screws securing the Front Panel cir cuit board to the front panel removed in step 6 part a 15 Resolder the single wire to the PROBE ADJUST connector and the two wires to the VAR HOLDOFF control unsoldered in step 5 16 Resolder the resistor to the EXT INPUT center con nector and the wire strap to the EXT INPUT ground lug unsoldered in step 4 17 Replace the front pan...

Page 101: ...ssis frame one under the EXT Z AXIS connector and two along the left side of the Main cir cuit board 16 Use a vacuum desoldering tool to unsolder the 39 wire straps connecting the Main circuit board to the Front Panel circuit board from the Main circuit board NOTE If a vacuum desoldering tool is not available lift each wire strap out o f the Main circuit board as the joint is heated Use care to ma...

Page 102: ...ndividual at your firm that can be contacted Include complete instrument serial number and a description of the service required Save and reuse the package in which your instrument was shipped If the original packaging is unfit for use or not available repackage the instrument as follows Surround the instrument with polyethylene sheeting to protect its finish Obtain a carton of corrugated cardboar...

Page 103: ...Section 7 2215A Service OPTIONS There are currently no options for the 2215A except the optional power cords previously described in Section 2 1 7 1 ...

Page 104: ...ix and are located at the end of the Electrical Parts List TEKTRO NIX PART NO column two of the Electrical Parts List Indicates part number to be used when ordering replace ment part from Tektronix CROSS INDEX M FR CODE NUMBER TO M ANUFACTURER The Mfr Code Number to Manufacturer index for the Electrical Parts List is located immediately after this page The Cross Index provides codes names and addr...

Page 105: ... LAWRENCE MA 01841 15454 RODAN INDUSTRIES INC 2905 BLUE STAR ST ANAHEIM CA 92806 18324 SIGNETICS CORP 811 E ARQUES SUNNYVALE CA 94086 19396 ILLINOIS TOOL WORKS INC PAKTRON DIV 900 FOLUN LANE SE VIENNA VA 22180 20462 PREM ENTERPRISES INC 3519 N CHAPEL HILL MCHENRY IL 60050 22229 SOLITRON DEVICES INC SEMICONDUCTOR GROUP 8808 BALBOA AVENUE SAN DIEGO OPERS CA 92123 22526 BERG ELECTRONICS INC YOUK EXPR...

Page 106: ...D5243 ROEDERSTEIN E SPEZIALFABRIK FUER KONDENSTATOREN GMBN LUDMILLA STRASSE 23 25 S4431 MURATA MFG CO LTD 16 KAIDEN NISHIJM CHO T0020 UNITED CHEMI CON INC 1128 LEXINGTON AUVE T1339 COMPONENT WEST PREM MAGNETICS INC 3521 N CHAPEL SPACE HILL RD T1394 MURATA ERIE NORTH AMERICAN INC 1148 FRANKLIN RD SE T1442 TAIYO YUDEN USA INC ARLINGTON CENTER 714 W ALGONQUIN T1557 TEKA PRODUCTS INC 45 SALEM ST City ...

Page 107: ... 59660 805534Y5DO152J A1C180 2860642 00 CAP FXD MICA D 33PF 0 5PF 300V 00853 D10 5E330G A1C200 296013600 CAP FXD ELCTLT 2 2UF 20 20V 56289 162D225X0020CD2 A1C201 290 013600 CAP FXD ELCTLT 2 2UF 20 20V 56289 162D225X0020CD2 A1C210 281 0511 00 CAP FXD CER DI 22PF 2 2PF 500V 59660 301 000C0G0220K A1C215 281 0862 00 CAP FXD CER Dl 0 001 UF 8620 100V 04222 GC761E102M A1C220 281 0772 00 CAP FXD CER DI 0...

Page 108: ...CTLT 3 3UF 10 15V 56289 173D335X9015V A1C502 281 0773 00 CAP FXD CER Dl 0 1UF 20 50V 04222 MA205E104MAA A1C503 281 0775 00 CAP FXD CER DI 0 1UF 20 50V 04222 MA205E104MAA A1C504 290 0246 00 CAP FXD ELCTLT 3 3UF 10 15V 56289 173D335X9015V A1C505 290 0183 00 CAP FXD ELCTLT 1 UF 10 35V 90201 TAC105K035P02 A1C506 281 0772 00 CAP FXD CER DI 0 0047UF 10 100V 04222 GC701C472K A1C507 290 0776 00 CAP FXD EL...

Page 109: ...289 2C20Z5U104Z200B A1C853 281 0791 00 CAP FXD CER DI 270PF 10 100V 04222 MA101A271KAA A1C854 283 0279 00 CAP FXD CER 01 0 001UF 20 3000V 59660 878 521 S Y5S 10 A1C855 285 1255 00 CAP FXD PLASTI 0 01UF 20 3KV 56289 430P582 A1C871 283 0057 00 CAP FXD CER 01 0 1UF 80 20 200V 56289 2C20Z5U104Z200B A1C873 281 0775 00 CAP FXD CER DI 0 1UF 20 50V 04222 MA205E104MAA A1C875 281 0775 00 CAP FXD CER DI 0 1U...

Page 110: ...52 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A1CR583 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A1CR712 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A1CR764 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A1CR765 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A1CR768 152 0141 02 SEMICOND DEVICE SILICON 30V 150MA 01295 1N4152R A...

Page 111: ...BP53 BH3 5X10X4 A1E907 276 0635 00 CORE EM TOROID FERRITE 08057 7J 41405 TC A1L960 108 1058 00 COIL RF FIXED 10UH 02113 B8724 A1L961 108 1058 00 COIL RF FIXED 10UH 02113 B8724 A1P9000 131 3148 00 CONN RCPT ELEC HEADER 1 X 36 0 1 SPACING T1557 082 3648SS40 RA A1P9100 131 3148 00 CONN RCPT ELEC HEADER 1 X 36 0 1 SPACING T1557 082 3648SS40 RA A1P9644 131 0608 00 TERMINAL PIN 0 365 L X 0 025 PH BRZ GO...

Page 112: ...866K A1Q578 151 0199 00 TRANSISTOR SILICON PNP 04713 SPS6866K A1Q586 151 0198 00 TRANSISTOR SILICON NPN SEL FROM MPS918 04713 SPS8802 1 A1Q756 151 0432 00 TRANSISTOR SILICON NPN 27014 T07391E2 A1Q770 151 0188 00 TRANSISTOR SILICON PNP 04713 SPS6868 A1Q775 151 0347 00 TRANSISTOR SILICON NPN 56289 2N5551 A1Q779 151 0350 00 TRANSISTOR SILICON PNP 04713 SPS6700 A1Q780 151 0190 00 TRANSISTOR SILICON NP...

Page 113: ...R 5K OHM 10 0 50W 73138 72 27 0 A1R150 315 0430 00 RES FXD CMPSN 43 OHM 5 0 25W 01121 CB4305 A1R151 315 0430 00 RES FXD CMPSN 43 OHM 5 0 25W 01121 CB4305 A1R152 321 0155 00 RES FXD FILM 402 OHM 1 0 125W 91637 MFF1816G402R0F A1R153 321 0155 00 RES FXD FILM 402 OHM 1 0 125W 91637 MFF1816G402R0F A1R154 321 0101 00 RES FXD FILM 110 OHM 1 0 125W 91637 MFF1816G110R0F A1R155 321 0101 00 RES FXD FILM 110 ...

Page 114: ...ES VAR NONWIR 500 OHM 10 0 50W 73138 72 23 0 A1R241 311 1237 00 RES VAR NONWIR 1K OHM 10 0 50W 32997 3386X T07 102 A1R242 315 0273 00 RES FXD CMPSN 27K OHM 5 0 25W 01121 CB2735 A1R244 321 0172 00 RES FXD FILM 604 OHM 1 0 125W 91637 MFF1816G604R0F A1R245 321 0172 00 RES FXD FILM 604 OHM 1 0 125W 91637 MFF1816G6O4R0F A1R250 315 0221 00 RES FXD CMPSN 220 OHM 5 0 25W 01121 CB2215 A1R251 315 0221 00 RE...

Page 115: ... 57 0 25W 01121 CB2215 A1R329 315 0152 00 RES FXD CMPSN 1 5K OHM 5 0 25W 01121 CB1525 A1R330 315 0152 00 RES FXD CMPSN 1 5K OHM 5 0 25W 01121 CB1525 A1R331 315 0470 00 RES FXD CMPSN 47 OHM 5 0 25W 01121 CB4705 A1R332 315 0470 00 RES FXD CMPSN 47 OHM 5 0 25W 01121 CB4705 A1R335 321 0203 00 RES FXD FILM 1 27K OHM 1 0 125W 91637 MFF1816G12700F A1R336 321 0203 00 RES FXD FILM 1 27K OHM 1 0 125W 91637 ...

Page 116: ...01121 CB2445 A1R415 315 0244 00 RES FXD CMPSN 240K OHM 5 0 25W 01121 CB2445 A1R416 315 0473 00 RES FXD CMPSN 47K OHM 5 0 25W 01121 CB4735 A1R417 315 0473 00 RES FXD CMPSN 47K OHM 5 0 25W 01121 CB4735 A1R419 315 0182 00 RES FXD CMPSN 1 8K OHM 5 0 25W 01121 CB1825 A1R420 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB1015 A1R421 315 0203 00 RES FXD CMPSN 20K OHM 5 0 25W 01121 CB2035 A1R422 315 01...

Page 117: ... 4 3K OHM 5 0 25W 01121 CB4325 A1R513 315 0391 00 RES FXD CMPSN 390 OHM 5 0 25W 01121 CB3915 A1R514 315 0471 00 RES FXD CMPSN 470 OHM 5 0 25W 01121 CB4715 A1R516 315 0392 00 RES FXD CMPSN 3 9K OHM 5 0 25W 01121 CB3925 A1R517 315 0432 00 RES FXD CMPSN 4 3K OHM 5 0 25W 01121 CB4325 A1R518 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121 CB1025 A1R523 315 0153 00 RES FXD CMPSN 15K OHM 5 0 25W 01121 CB1...

Page 118: ...73138 91 87 0 A1R761 321 0210 00 RES FXD FILM 1 5K OHM 1 0 125W 91637 MFF1816G15000F A1R764 315 0221 00 RES FXD CMPSN 220 OHM 5 0 25W 01121 CB2215 A1R766 321 0109 00 RES FXD FILM 133 OHM 1 0 125W 91637 MFF1816G133R0F A1R768 321 0158 00 RES FXD FILM 432 OHM 1 0 125W 91637 MFF1816G432R0F A1R770 315 0470 00 RES FXD CMPSN 47 OHM 5 0 25W 01121 CB4705 A1R773 321 0182 00 RES FXD FILM 768 OHM 1 0 125W 916...

Page 119: ...WIR 100K OHM 20 0 5W 73138 91 77 0 A1R871 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121 CB1025 A1R872 315 0223 00 RES FXD CMPSN 22K OHM 5 0 25W 01121 CB2235 A1R873 315 0513 00 RES FXD CMPSN 51 K OHM 5 0 25W 01121 CB5135 A1R874 311 1555 00 RES VAR NONWIR 100K OHM 20 0 5W 73138 91 77 0 A1R875 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121 CB1025 A1R877 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121...

Page 120: ...SN 4 7 OHM 5 0 25W 01121 CB47G5 A1R971 308 0847 00 RES FXD WW 0 62 OHM 5 A 1W 75042 8W20 0 620HM A1R976 315 0512 00 RES FXD CMPSN 5 1 K OHM 5 0 25W 01121 CB5125 A1R978 315 0512 00 RES FXD CMPSN 5 1K OHM 5 0 25W 01121 CB5125 A1R9272 301 0201 00 RES FXD CMPSN 200 OHM 5 0 5W 01121 EB2015 A1R9273 301 0201 00 RES FXD CMPSN 200 OHM 5 0 5W 01121 EB2015 A1RT236 307 0125 00 RES THERMAL 500 OHM 10 25 DEG C ...

Page 121: ...R ES 2 375 22 AWG 57668 JW W 0200E0 A1W 350 131 0566 00 BU S C O N D U C TO R rD U M M Y R ES 2 375 22 AWG 57668 JW W 0200E0 A1W351 131 0566 00 BUS C O N D U C TO R rD U M M Y R ES 2 375 22 AWG 57668 JW W 0200E0 A1W 408 131 0566 00 BU S C O N D U C TO R rD U M M Y R ES 2 375 22 AWG 57668 JW W 0200E0 A1W 410 131 0566 00 BU S C O N D U C TO R rD U M M Y R ES 2 375 22 AWG 57668 JW W 02O0E0 A1W 419 13...

Page 122: ...57668 JWW 0200E0 A1W992 131 0566 00 BUS CONDUCTOR DUMMY RES 2 375 22 AWG 57668 JWW 0200EO A1W993 131 0566 00 BUS CONDUCTOR DUMMY RES 2 375 22 AWG 57668 JWW 0200E0 A1W995 131 0566 00 BUS CONDUCTOR OUMMY RES 2 375 22 AWG 57668 JWW 0200EO A1W997 131 0566 00 BUS CONDUCTOR DUMMY RES 2 375 22 AWG 57668 JWW 0200E0 A1W998 131 0566 00 1 BUS CONDUCTOR DUMMY RES 2 375 22 AWG 57668 JWW 0200EO A1W999 131 0566 ...

Page 123: ...10BH02F0 A2C56 283 0000 00 CAP FXD CER DL0 001UF 100 0 500V 59660 831610Y5U0102P A2C59 281 0770 00 CAP FXD CER DL1000 PF 20 100V 04222 MA101C102MAA A2C60 283 0028 00 CAP FXD CER DI 0 0022UF 20 50V 59660 0805585Y5S0222M A2C63 281 0862 00 CAP FXD CER Dl 0 001UF 80 20 100V 04222 GC70 1E102M A2C67 281 0862 00 CAP FXD CER DL0 001UF 80 20 100V 04222 GC70 1E102M A2C71 281 0773 00 CAP FXD CER DL0 1UF 20 5...

Page 124: ... 00 RES NTWK FXD FI INPUT ATTENUATOR 80009 307 0843 00 A2R21 315 0160 00 RES FXD CMPSN 16 OHM 5 0 25W 01121 CB1605 A2R22 321 0210 00 RES FXD FILM 1 5K OHM 1 0 125W 91637 MFF1816G15000F A2R23 321 0210 00 RES FXD FILM 1 5K OHM 1 0 125W 91637 MFF1816G15000F A2R25 311 1568 00 RES VAR NONWIR 50 OHM 20 0 50W 73138 91 90 0 A2R26 311 0643 00 RES VAR NONWIR 50 OHM 10 0 50W 73138 82 33 2 A2R29 321 0090 00 R...

Page 125: ...HM 20 0 50W 73138 91 78 0 A2R84 315 0101 00 RES FXD CMPSN 100 OHM 5 0 25W 01121 CB1015 A2R85 321 0144 00 RES FXD FILM 309 OHM 1 0 125W 91637 MFF1816G309R0F A2R87 315 0102 00 RES FXD CMPSN 1K OHM 5 0 25W 01121 CB1025 A2R88 321 0144 00 RES FXD FILM 309 OHM 1 0 125W 91637 MFF1816G309R0F A2R91 321 0154 00 B010100 B012199 RES FXD FILM 392 OHM 1 0 125W 91637 MFF1816G392R0F A2R91 321 0151 00 B012200 RES ...

Page 126: ...125W 91637 MFF1816G40200F A3R112 311 2178 00 RES VAR NONWW PNK 500 OHM 10 0 5W 01121 W8650A A3R161 321 0251 00 RES FXD FILM 4 02K OHM 1 0 125W 91637 MFF1816G40200F A3R162 311 2178 00 RES VAR NONWW PNK 500 OHM 10 0 5W 01121 W8650A A3R201 315 0200 00 RES FXD CMPSN 20 OHM 5 0 25W 01121 CB2005 A3R401 315 0200 00 RES FXD CMPSN 20 OHM 5 0 25W 01121 CB2005 A3R280 311 2147 00 RES VAR NONWIR PNL 5K OHM 20 ...

Page 127: ...389 ORD BY DESCR A3S550 260 2033 00 SWITCH SLIDE DPTT 125V 0 5A 82389 ORD BY DESCR A3S555 260 2033 00 SWITCH SLIDE DPTT 125V 0 5A 82389 ORD BY DESCR A3S602 260 2075 00 SWITCH PUSH SPDT 50VDC 500M AMP 80009 260 2075 00 A3S648 260 2033 00 SWITCH SUDE DPTT 125V 0 5A 82389 ORD BY DESCR A3U985 156 0067 00 MICROCIRCUIT LLOPERATIONAL AMPLIFIER 01295 MICROA741CP A3W89 131 0566 00 BUS CONDUCTOR DUMMY RES 2...

Page 128: ...H02F0 A4C714 281 0756 00 CAP FXD CER DI 2 2PF 0 5 200V 12969 CGB2R2DFN A4C715 290 0776 00 CAP FXD ELCTLT 22UF 50 10 10V 55680 ULA1A220TEA A4C720 281 0775 00 CAP FXD CER DI 0 1UF 20 50V 04222 MA205E104MAA A4C724 281 0773 00 CAP FXD CER DI 0 1UF 20 50V 04222 MA205E104MAA A4C728 283 0203 00 CAP FXD CER DI 0 47UF 20 50V 04222 5R305SE474MAA A4C749 281 0775 00 CAP FXD CER DI 0 1UF 20 50V 04222 MA205E104...

Page 129: ...01 00 RES FXD CMPSN 200 OHM 5 0 25W 01121 CB2015 A4R724 315 0200 00 RES FXD CMPSN 20 OHM 5 0 25W 01121 CB2005 A4R727 321 0246 00 RES FXD FILM 3 57K OHM 1 0 125W 91637 MFF1816G35700F A4R728 321 0211 00 RES FXD FILM 1 54K OHM 1 0 125W 91637 MFF1816G15400F A4R730 311 0635 00 RES VAR NONWIR 1 K OHM 10 0 5 0 5W 73138 82P 6 2 102K A4R731 321 0244 00 RES FXD FILM 3 4K OHM 1 0 125W 91637 MFF1816G34000F A4...

Page 130: ...r Code Mfr Part Number A4U760 155 0124 00 MICROCIRCUIT LlrHORIZONTAL PREAMPL 80009 155 0124 00 A4VR720 A4VR749 152 0744 00 152 0744 00 SEMICOND DEVICE ZEN SI 3 6V 5 0 4W SEMICOND DEVICE ZEN SI 3 6V 5 0 4W 04713 04713 1N747A 1N747A A4W709 131 0566 00 BUS CONDUCTOR DUMMY RES 2 375 22 AWG 57668 JWW 0200E0 REV JUL 1984 8 27 ...

Page 131: ... SILICON NPN 07263 S032677 A5Q680 151 0198 00 TRANSISTOR SILICON NPN SEL FROM MPS918 04713 SPS8802 1 A5Q685 151 0198 00 TRANSISTOR SILICON NPN SEL FROM MPS918 04713 SPS8802 1 A5R604 315 0242 00 RES FXD CMPSN 2 4K OHM 5 0 25W 01121 CB2425 A5R605 321 0203 00 RES FXD FILM 1 27K OHM 1 0 125W 91637 MFF1816G12700F A5R606 321 0201 00 RES FXD FILM 1 21K OHM 1 0 125W 91637 MFF1816G12100F A5R609 315 0222 00...

Page 132: ...U605 156 0534 00 MICROCIRCUIT LI DUAL DIFF AMPL 14 LD DIP 02735 CA3102E 98 A5U625 156 0182 03 MICROCIRCUIT DLTRIPLE 2 3 2 INPUT GATE 04713 MC10105 P OR L A5U655 156 1126 00 MICROCIRCUIT LLVOLTAGE COMPARATOR 51984 UPC311C A5U660 156 0385 02 MICROCIRCUIT DI HEX INVERTER 01295 SN74LS04 A5U665 156 0382 02 MICROCIRCUIT DLQUAD 2 INP NAND GATE 01295 SN74LS00 A5U670 156 1611 00 MICROCIRCUIT DLDUAL D TYPE ...

Page 133: ...CTRICAL 18 AWG 3 0 L 8 01 80009 196 0531 00 A6W9091 196 0505 00 LEAD ELECTRICAL 18 AWG 3 0 L 8 9 80009 106 0505 00 CHASSIS PARTS DL9210 119 0955 00 DELAY LINE ELEC 88NS 150 OHM 80009 119 0955 00 F9001 159 0019 00 FUSE CARTRIDGE 3AG 1A 250V SLOW BLOW 71400 MDL1 FL9001 119 1541 01 LINE FILTER AS 1A 250V AC 80009 119 1541 01 J9100 131 0126 00 CONNECTOR RCPT BNC FEMALE 77820 9663 1 NT 34 J9376 131 095...

Page 134: ...he schematic diagram and corresponding component locator illustration The Replaceable Electrical Parts list is arranged by assemblies in numerical sequence the components are listed by component number see following illustration for constructing a component number The schematic diagram and circuit board component location illustration have grids A lookup table with the grid coordinates is provided...

Page 135: ... 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 54 105 or 100 000 5 0 5 pF 25 VDC BLUE 6 106 or 1 M 54 106 or 1 000 000 35 VDC VIOLET 7 1 10 50 VDC GRAY 8 10 2 or 0 01 80 20 0 25 pF WHITE 9 10 or 0 1 10 1 pF GOLD 1 0 1 or ...

Page 136: ...255 256 257 L PLASTIC CASE TRANSISTORS J TRANSISTOR SCR FET INTEGRATED CIRCUITS LEAD CONFIGURATIONS AND CASE STYLES ARE TYPICAL BUT MAY VARY DUE TO VENDOR CHANGES OR INSTRUMENT MODIFICATIONS 3826 17 4206 32A Figure 9 2 Semiconductor lead configurations ...

Page 137: ...617 P603 R673 U618 P607 R674 U619 0669 R67S PULL OUT PAGE TABS FOR SCHEMATIC DIAGRAMS COMPONENT CRT CIRCUIT DIAGRAM ASSEMBLY NUMBER AND CIRCUIT BOARD NAME ILLUSTRATION FOR INSTRUMENT CIRCUIT BOARD LOCATION Locate the Component on the C ircuit Board In the manual locate and pull out the tabbed page whose title and Assembly Number correspond w ith the desired circuit board This information is on the...

Page 138: ...2215A Service 4735 04 Figure 9 4 Basic block diagram ...

Page 139: ......

Page 140: ... Mode P P AUTO LEVEL Midrange A B INT VERT MODE A SOURCE INT Changes to the control settings for specific waveforms are noted at the beginning of each set of waveforms Input signals and hookups required are also indicated if needed for each set of waveforms DC VOLTAGE MEASUREMENTS Typical voltage measurements located on the schematic diagram were obtained with the instrument operating under the co...

Page 141: ...atic diagram number on which the voltage appears The schematic dia gram grid location of a service jumper or component is given adjacent to the component number on the power distribu tion and circuit board interconnect diagrams If a power supply comes up after lifting one of the main jumpers from the power supply to isolate that supply it is very probable that a short exists in the circuitry on th...

Page 142: ... F9001 7 5A P9870 5 7 6P P 9870 7 7 5P FL9001 7 5A P 9870 8 7 7P J9100 1 1A Q 9070 7 8J J9376 3 5A J9510 1 6A R9100 1 1A J9800 7 4A R9272 2 8S J9900 6 2E R9273 2 2S R9376 3 5A P9272 7 5P R9510 1 6A P9273 7 5P R9521 4 3A P9778 7 4P R9644 5 5D P9788 7 4P R9802A 7 2A P9070 1 7 8J R9802B 7 3A P9070 2 7 8J P9070 3 7 8J V 9370 7 2P P 9870 10 7 4P P9870 12 7 3N W 9272 2 8S P 9 8 7 0 14 7 8P ...

Page 143: ... A TRIGGER LEVEL 3 8M P9700 A4 TO A1 PIN NO LINE NAME DIAG NO 3 GRID COORDINATES 1 A DISP 6 5E 2 B DISP 6 5E 3 B SWP 5 6E 4 H O 2 4 4D 5 HO 1 4 4D 6 H O COM 4 4D 7 A SWP 4 8N 8 GND 5 7E 9 B RETRACE 5 7E 10 A GATE 4 7N W9700 A1 TO A4 WIRE NO LINE NAME DIAG NO GRID COORDINATES 1 A DISP 6 5D 2 B DISP 6 5D 3 B SWP 5 6F 4 H O 2 4 4D 5 H O 1 4 4D 6 H O COM 4 4D 7 A SWP 4 8M 8 GND 4 7M 9 B RETRACE 5 6F 1...

Page 144: ... CCW 2 9D 28 B SLOPE 5 9E 9 CH2 2 6B 29 TRIG D LED 4 9K 10 BW LIMIT 2 4K 30 SS 4 9B 11 CHOP ENABLE 3 4C 31 GND 3 6C 12 8 6 Vh 8 5N 32 CH 1 T 3 2C 13 VALT 5 2E 33 CH 2 T 3 3C 14 C H l 2 5B 34 V MODE T 3 3C 15 A ONLY 5 1 E 35 EXT 3 7C 16 B LEVEL 5 9E 36 LINE 3 6C 17 TV TRIG ENABLE 4 9B 37 INT 3 7C 18 XY 3 2C 38 GND 3 6C 19 A SLOPE 3 8N 39 EXT INPUT 3 5C 20 A TRIGGER LEVEL 3 8M W9401 A5 TO A1 WIRE NO...

Page 145: ...CIRCUIT BCARD N TER CONNECTIONS 2 2 1 5 A 4755 20 ...

Page 146: ...s See Maintenance Section COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 Assembly Numb Svbissembty Number it used Schemju Ore Number Chassismounted components have no Assembly Number prefci see end ot Replaceable Bectnal Parts List ...

Page 147: ...6 1 R79 1 C17 1 P9103 2 1 R27 1 R80 1 C21 1 P9103 3 1 R29 1 R81 1 C26 1 P9103 4 1 R30 1 R83 1 C27 1 P9108 1 1 R31 1 R84 1 C30 1 P9108 2 1 R33 1 R85 1 C35 1 P9108 3 1 R34 1 R87 1 C38 1 P9106 4 1 R35 1 R88 1 C52 1 P9200 1 1 R37 1 R91 1 C53 1 P9200 2 1 R38 1 R93 1 C54 1 P9991 1 1 R39 1 R96 1 C55 1 P9991 2 1 R41 1 R97 1 C56 1 P9991 3 1 R42 1 R98 1 C59 1 Q13 1 R43 1 SI 1 C60 1 Q15 1 R46 1 S10 1 C61 1 Q...

Page 148: ...60 7D P9200 1 9L 3A R38 4P 5N R98 8 H 8 H C55 6 D 7D P9200 2 9L 3A R39 4P 5P C56 6 G 4C P9991 1 8 B 8 A R41 4P 5P SI 48 5B C59 7G 8 G P9991 2 9B 9A R42 5P 6 P S10 4H 5F C60 7G 8 F P9991 3 9B 9A R43 5P 6 P S51 5B 6 B C61 6 E 7E R46 3H 4H S60 5H 6 F C62 6 E 7E 013 1 H 3G R47 3H 5H C63 6 H 4C Q15 2H 4G R48 3H 5H U10 2F 4F C67 6 H 7H Q18 2H 3H R52 6 A 7B U30 IN 3N C71 7L 8 L 063 6 H 7G R53 6 F 7F U60 ...

Page 149: ...I m 2 3 4 m 5 6 m 7 m 6 m 9 A t b t c t d t e t f t g t h t j t k t l t m t n t p t s 22I5A 4 n z C H I C H Z ATTENUATOR S ...

Page 150: ...R853 C419 IW 907Vv W9070 2 g j3fn lB 2 0 c p f W R820 5 bCR818 0688 hessv cftsas CR879 CR85V 41424 o 879K C907 U460 S R463 R460 4Wg5 R478 W 582 5 7 T 0578 HBfiSfc iS E S K iR 5 7 8 V H3Q 6 U506 ________ _ j fi5l3F 4R512 t CR514 R414 S lih W9b7 0 3 i f Q947 CR970 CR712 k VR712 P 569S Sfl916h 4 4 TP940 944 J J U532 R945 TP961 R941 R935 VR935 Figure 9 7 A1 Main board 4735 13 Static Sensitive Devices ...

Page 151: ...7 CR904 7 Q511 4 R192 2 R322 3 C369 3 C855 7 CR907 7 Q525 4 R193 2 R324 3 C381 3 C871 7 CR908 7 0576 4 R194 2 R326 3 C389 3 C873 7 CR920 7 0578 4 R195 2 R327 3 C390 3 C875 7 CR945 7 Q586 7 R2 0 0 2 R328 3 C392 3 C877 7 CR946 7 Q756 6 R202 2 R329 3 C396 7 C879 7 CR947 7 Q770 6 R203 2 R330 3 C397 3 C893 7 CR954 7 Q775 6 R204 2 R331 3 C405 3 C904 7 CR955 7 Q779 6 R206 2 R332 3 C408 3 C906 7 CR956 7 0...

Page 152: ... 4 W 991 8 W9400 27 8 R449 2 R649 5 R907 7 U532 4 W992 8 W9400 2 5 R451 8 R673 5 R908 7 U532 4 W993 8 W9400 3 8 R452 3 R676 6 R909 7 U532 4 W995 8 W9400 4 5 R453 3 R756 6 R910 7 U537 2 W997 8 W 9400 5 5 R455 3 R757 6 R912 7 U537 2 W998 8 W 9400 6 5 R457 3 R758 6 R913 7 U537 2 W999 8 W9400 7 5 R458 3 R759 6 R914 7 U537 2 W9040 7 W9400 8 7 R459 3 R760 6 R915 7 U540 2 W9190 7 W9400 9 7 R460 3 R761 6 ...

Page 153: ...2215A S e rv ic e D UJ o C D GO CO in 10 CJ Figure 9 8 Circuit view of A1 Main board ...

Page 154: ...ing both GND VOLTS DIV both 0 1V AC Waveforms VERTICAL MODE A TRIGGER Mode BOTH CHOP P P AUTO O o 0 4ps 0 2ps 0 8 p s o H HI IN A OR B LO IN ALT L A SVP B SVP _ 3 V SQ WAVE REFERENCED TO 3V OR DEPENDING ON SETTING OF SEP POT AMPLITUDE ALSO DEPENDS ON SETTING OF SEP POT 4735 06 ...

Page 155: ...3N IE R131 3F 3C R233 5N IE U537C 5D 1J C262 5P 2G R132 5F 1G R234 6M 2E U537D 5C 1J C281 2M IF R133 5F 2C R235 4M IE U540A 5E 2H C292 IN 2E R135 4F 2C R236 5N IE U540B 5C 2H C537 8K 1J R136 4F 2C R239 5M 2E C538 5D 3G R139 5G 2C R240 5M IE W 142 2G 2C C539 6D 3G R142 2H 2C R241 5M ID W 143 3G 2C C540 8J 2H R143 4H 2C R242 5M 2D W 192 8G 2D C545 5C 1J R144 2H 2C R244 5L 2D W 193 9G 2D C547 4D 2J R...

Page 156: ...9 6B 4B CR538 6B 2B R280 2L 1C W9000 14 5B 4B W9000 2 2D 4A R111 2D IB S226 3K 2C W9000 3 3D 4A R112 3D IB S545 4A 2C W9000 4 2L 4A R161 9D 1C S550 5A 2B W9000 7 8D 4B P a rtia l A 3 also sh o w n o n dia g ra m s 1 3 4 5 6 7 a n d 8 CHASSIS MOUNTED PARTS CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD ORCUIT SCHEM BOARD NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION...

Page 157: ...1 p 2 m 3 p 4 p 5 P 6 p 7 p 8 p 9 A T B Z 2 I5 A ...

Page 158: ...H T J t K t L t M T N T p t S 4 7JS Z2 ...

Page 159: ...board Static Sensitive Devices See Maintenance Section COMPONENT NUMBER EXAMPLE Component Number A 23A2R1234 I I Schemata Assembly L _ Circuit Number S ubassem bly Number it used Number Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts Ust ...

Page 160: ...401 4 W9000 30 4 P9006 1 7 S460 3 W9000 31 3 P9006 2 7 S545 2 W9000 32 3 R89 1 S550 2 W9000 33 3 R92 1 S555 3 W9000 34 3 R111 2 S602 5 W9000 35 3 R112 2 S648 5 W9000 36 3 R161 2 U985 6 W9000 37 3 R162 2 W89 8 W9000 38 3 R201 2 W515 4 W9000 39 3 R280 2 W534 2 W9000 3 2 R377 3 W539 3 W9000 4 2 R378 3 W630 3 W9000 5 8 R379 3 W9900 6 W9000 7 2 R380 3 W9000 10 2 W9000 8 2 R401 4 W9000 11 3 W9000 9 2 R4...

Page 161: ...3F 3D R434 9K 7B U555C 3E 4E CR399 7F 5C R343 3G 4D R435 9K 7B U555D 3E 4E CR414 8 J 6 B R344 5J 4D R446 7M 6 C U565B 3F 2H CR415 9J 6 B R346 6 J 4D R452 8 K 6 C U565C 2F 2H CR556 2D 4E R347 6 J 4D R453 7L 6 C U565D 4F 2H R349 6 H 4D R455 8 L 6 C Q302 2G 3C R350 IK 5C R457 6 K 6 C W 310 1J 4D Q303 3G 3C R351 3K 5C R458 7L 6 C W 335 4J 3D Q327 5G 3D R352 2K 5C R459 7N 6 C W 350 IK 4D Q328 6 G 3D R3...

Page 162: ...2C 3B 3B 4B 4C 4C 4C 4C 4C 4E 4E W 9000 33 W 9000 34 W 9000 35 W 9000 36 W 9000 37 W 9000 38 W 9000 39 2C 3C 7C 6 C 7C 6 C 4C 4E 4E 4E 4E 4E 4E 4F P a r t ia l A 3 a ls o s h o w n o n d ia g r a m s 1 2 4 5 6 7 a n d 8 ASSEMBLY A4 CIRCUIT NUMBER SCHEM LOCATION BOARD LOCATION CIRCUIT NUMBER SCHEM LOCATION BOARD LOCATION CIRCUIT NUMBER SCHEM LOCATION BOARD LOCATION CIRCUIT NUMBER SCHEM LOCATION BOA...

Page 163: ...I m 2 m 3 4 5 6 7 8 9 NUMERAL AND UTTER AT SIGNAL LINES TO OR FROM OTHER DIAGRAMS WOICATCS THE GRIO COORDINATES ON ANOTHER SCHEMATIC FOR EXAMPLE 4E 22 15A T R IG G E R IN G ...

Page 164: ...d Q 7 0 6 3701 X P rm rrS ObK 7 jC705y CP 4735 17 COMPONENT NUMBER EXAMPLE Component Number A 23A2R1234 A w e n d V l Number Subissembiy Number it used Schenuttc Circuit Number Chassis mounted components have no Assembly Number pretu see end of Replaceable Electrical Parts Ust ...

Page 165: ...705 8 6 R740 6 C713 5 Q701 4 R741 6 C714 5 Q704 4 R742 6 C715 4 Q704 4 R743 6 C720 4 Q706 4 R745 6 i C724 6 Q709 5 R746 6 C728 6 Q710 5 R748 6 j C749 6 Q710 5 R749 6 C750 6 Q712 5 R750 6 C751 6 Q732 6 R751 6 C752 6 Q737 6 R752 6 C755 6 Q742 6 R753 6 CR732 6 R701 4 R754 6 CR742 6 R702 4 R755 6 P9250 1 6 R703 4 S701 4 P9250 2 3 R705 4 S701 4 j P9250 3 3 R707 4 S701 5 P9250 4 4 R709 5 S721 6 P9700 10...

Page 166: ...GGER LEVEL A TRIGGER Mode A SOURCE A B I NT CH 1 ItFUT SIGNAL M idrange A 0 1 ms P P AUTO CH 1 IV DC A M1drange P P AUTO INT CH 1 1 kHz s in e w ave MV P P 0 0 0 0 0 0 j i r L r i J i J i i l i i j m r u U 4 4V 3 4V A CATE 5V HI 6V LO 12V 0 6V J HOLDOFF INTEN INTEN 1 9V 1 8V 0 QV AUTO GATE H L 00 SET CH 1 INPUT COUPLING TO GNO 1 ______________ t END OF AUTO TIME OUT H L 4735 07 ...

Page 167: ...a ls o s h o w n o n d ia g r a m s 2 3 5 6 7 a n d 8 ASSEMBLY A3 CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD c ir c u it SCHEM BOARD NUMBER LOCATION LOCATION NUMBER LOCATION l o c a t io n NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION DS518 9L 2E R520 3B 2E W 515 9A IF W 9520 1 4B 3E W 9000 17 9B 4C W 9520 2 3B 3E J9 250 4 4B 3E S401A 5A 2E W 9000 24 8 B 4C S401B 8 A 2E W 9000...

Page 168: ...I 2 3 4 5 6 7 8 9 B H K L M N 2 2 I 5 A 473S Z ...

Page 169: ...o u p lin g b o th HORIZONTAL MODE A SEC DIV B SEC DIV B DELAY TIME POSITION B TRIGGER LEVEL A TRIGGER Mode A B INT A SOURCE CH 1 INPUT SIGNAL CH 1 5mV DC ALT 50ps 5ps 5 0 CW RUN AFTER DELAY P P AUTO CH 1 I NT 5 d iv j 1 kHz s in e wove 12V yn n 0 8 V f 13V 0 8 V H L LO FOR A A INT HI FOR B SWEEP H L H HI IN A OR B LO IN ALT L SET B TRIGGER LEVEL TO MIDRANGE U r U L T L r L J L ...

Page 170: ...e n e n c eS e c t io n COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 Assembly j _ Number Subessembly Number il used Schematic Circuit Number A5 ALTERNATE SWEEP BOARD Chassis mounted components have no Assembly Number prefix see end of Replaceable Electrical Parts List ...

Page 171: ...401 3 5 R610 5 R671 5 VR660 5 W9401 4 5 R611 5 R672 5 W 637 5 W 9401 5 5 R614 5 R674 5 W 638 5 W 9401 6 5 R616 5 R677 5 W 643 5 W 9401 7 5 R617 5 R690 5 W 655 5 W 9401 8 5 R619 5 R693 5 W 662 5 W 9401 9 5 R620 5 R816 5 W 6 6 8 5 R621 5 R817 5 W 670 5 B T IM IN G A LTE R N A TE B SW EEP ASSEMBLY A1 CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD NUMBER LOCATION LOCAT...

Page 172: ...625A 8K 2A W698 7N IB C671 2M 2B R630 7L 1A U625B 8K 2A W9401 10 2G 4B C672 7M 3C R631 8L IB U625C 8J 2A W9401 11 2S 4B C690 4H 3B R632 5M 2B U655 5J 3C W9401 12 2G 4C C693 4G IE R633 7M 3B U660A 9M 2D W9401 13 1G 4C C694 4H IB R634 7L IB U660B 5M 2D W9401 14 5G 4C R637 9K 3B U660C 4N 2D W9401 15 4G 4C CR680 5P 2C R638 9L 2D U660D 9L 2D W9401 16 4G 4C CR685 4P 2C R640 9L 2D U660E 2L 2D W9401 17 6G...

Page 173: ...I 2 to 3 to 4 to 5 to 6 7 to 8 to 9 2 215A B TIMING ALTERNATE B SWEEP S ...

Page 174: ...n p u t C o u p lin g b o th GND HORIZONTAL MODE A A TRIGGER Mode P P AUTO AC Waveforms In p u t C o u p lin g b o th HORIZONTAL MODE X I0 M a g n ifie r VAR HOLDOFF A TRIGGER Mode GND A O ff knob In MIN f u l l y cow P P AUTO 70V 25V 70V 25V I 4735 09 ...

Page 175: ... NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION NUMBER LOCATION LOCATION C987 2B ID J9250 1 3E 3D R987 2C ID U985 2C ID R988 2C ID CR988 2C ID R726 3B ID R989 2D 2D W 9900 2D 1A CR989 2D ID R985 2B ID R990 2D IB W 9000 21 3B 4C R986 1C ID P a r t ia l A 3 a ls o s h o w n o n d ia g r a m s 1 2 3 4 5 7 a n d 8 ASSEMBLY A4 CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT SCHEM...

Page 176: ......

Page 177: ...900 7 W9011 7 R901 7 W9041 7 R903 7 W9091 7 RT901 7 W9191 7 Static Sensitive Devices See Maintenance Section COMPONENT NUMBER EXAMPLE Component Number A23 A2 R1234 i H3 I n 1 SchemtK tosemtty J L O rcurf Number Subassembly Number Number tim e d A6 FILTER BOARD Chassis mounted components have no Assembly Number prefix see end ol Replaceable Electrical Parts Ust ...

Page 178: ...in ts TP940 and TP950 DC Voltages P re re g u la to r and in v e rte r voltages are referenced to te s t p o in t noted adjacent to the vo lta g e Power supply output voltages are referenced to chassis ground 3V PROBE GROUND LEAD ON TP 940 0V PROBE GROUND LEAD ON TP 940 15 0 V 100wV PROBE GROUNO LEAD ON TP 940 PROBE GROUtC LEAD ON TP 940 VOLTAGE AND DUTY CYCLE VARY WITH INPUT L IN E VOLTAGE PROBE ...

Page 179: ... 4H 3J C945 9F 8 J CR855 5M 5G C845 3H 3J C954 6 K 6 F CR879 8 M 6 G P9802 1 3B 4B C847 3J 3J C956 7K 6 F CR901 5E 5J P9802 2 3B 4B C849 3J 3J C960 9L 6 F CR902 5E 5J P9802 3 2B 4B C851 7M 6 H C961 9L 8 F CR903 5E 5J P9802 4 3B 4B C853 7M 6 G C962 9L 7F CR904 5E 5J P9802 5 2B 4B C854 6 M 5G C963 9L 8 F CR907 7J 6 H C855 3M 5G C968 9L 8 G CR908 8 H 7J Q586 ID 6 D C871 4S 1 H C970 9L 8 G CR920 6 J 7...

Page 180: ... J 6 J W9870 4 7N 4G R845 3H 3J R915 8 D 7J T944 9H 7H W9870 5 6 S 1 H R849 3J 3J R916 8 F 7J T948 4J 6 G W9870 7 5S 1 H R851 7M 4J R917 8 D 7H W9870 8 7S 1 H R852 7M 4J R919 8 F 8 J TP842 3J 3J R853 7M 6 G R921 8 E 7J TP900 9L 8 E R854 6 M 5G R922 8 F 7J TP940 9C 8 J P a r tia l A 1 a ls o s h o w n o n d ia g r a m s 2 3 4 5 6 a n d 8 ASSEMBLY A3 CIRCUIT SCHEM BOARD CIRCUIT SCHEM BOARD CIRCUIT S...

Page 181: ...I 2 3 4 5 6 7 8 9 AXIS CRT ...

Page 182: ...F W9400 25 6N 7E W959 1C 4E W9400 26 6N 8E E200 4G 4E W960 38 7F W9400 27 5N 8E E201 8H 4E W961 7B 8F W9400 3 6N 6E E272 3D 1G W964 2C 3H W9705 1 3N 5E E590 6G 8C W965 2C 3H W9705 4 3N 5E W968 6D 8F W9705 6 3N 5E R220 4H 2D W971 3C 7E W9705 7 3N 5E R451 8E 6D W972 3C 6E W9705 8 2N 5E R494 4D 5E W974 4J 3H W9991 1 8N 5E R499 8E 5E W975 4K 3H W9991 2 9N 5E R796 8K 2G W976 7C 7E W9991 3 9N 5E R797 4K...

Page 183: ...iV b g e fc v t 3 R A S S 3 3 f 6 4 VC 1 tf r a s O Tc451 T B fcVcz t e fevD 4 e 4 v e g IO e fcvG B c Vq a 4 Vf T c I Sto T a fc v F e vH 3 a 4 v 8 fevx e fcv4 a v6 3 4 i A 8 b V B Gn D GND S vc J W S O O I 5 W9400 27 A 3 C A R T v _ F R O N T R 6 N E L B O A R D 6 A fs S W 9 G O O 5 GVW to i s 4 vo 23 a b v c WS991 _ _ _ _ _ _ _ I 5 2 Va 6 N D GND GND GND G N D GND 8 g v a 8 GVB TO G N D 8 8 P X...

Page 184: ...2215A Service R240 DL C0MP1 C237 HF PEAK COMP R874 ASTIG R870 GEOM A1 MAIN BOARD ADJUSTMENT LOCATIONS 4735 31 ...

Page 185: ...00X LF COMP C4 100X INPUT C C55 100X LF COMP C54 100X INPUT C R97 CH 2 MF LF GAIN BAL R76 CH 2 2 mV GAIN R83 CH 2 2 5 m V DC BAL C62 10X LF COMP C61 10X INPUT C C53 CH 2 MF LF COMP A2 ATTENUATOR BOARD ADJUSTMENT LOCATIONS ...

Page 186: ...C713 B R730 R740 HIGH B SWEEP A SWEEP SPEED GAIN GAIN TIMING R749 MAG REGIS R754 X10 GAIN C703 A HIGH SPEED TIMING A4 TIMING BOARD ADJUSTMENT LOCATIONS ...

Page 187: ...R652 DELAY END 4735 34 A 5 A L TE R N A T E SW EEP B O A R D A D J U S T M E N T L O C A T IO N S ...

Page 188: ...CE 5 2V W968 5 0 4 to 5 36V 8 6V W960 8 4 3 to 8 77V 8 6 V TP961 8 5 6 to 8 6 4 V 30V W956 29 1 to 30 9V 100V W954 97 to 103V NOTE A HV probe 18 re q u ire d to measure th e 2kV s u p p ly T urn o f f th e power and make th e te s t equipm ent c o n n e c tio n s to the o s c illo s c o p e Set th e v o ltm e te r to re a d o t le o s t 3 k V then tu rn the o s c illo s c o p e power back on to ta...

Page 189: ...2215A Service 4735 11 ...

Page 190: ...on as the item it mounts while the detail parts are indented to the right Indented items are part of and included with the next higher indentation The separation symbol indicates the end of attaching parts Attaching parts must be purchased separately unless otherwise specified ABBREVIATIONS INCH ELCTRN ELECTRON IN INCH SE SINGLE END It NUMBER SIZE ELEC ELECTRICAL INCAND INCANDESCENT SECT SECTION A...

Page 191: ... 30817 INSTRUMENT SPECIALTIES COMPANY INC LITTLE FALLS NJ 07424 73743 FISCHER SPECIAL MFG CO 446 MORGAN ST CINCINNATI OH 45206 77820 BENDIX CORP THE ELECTRICAL COMPONENTS DIVISION SHERMAN AVE SIDNEY NY 13838 78189 ILLINOIS TOOL WORKS INC SHAKEPROOF DIVISION ST CHARLES ROAD ELGIN IL 60120 80009 TEKTRONIX INC P O BOX 500 BEAVERTON OR 97077 83385 CENTRAL SCREW CO 2530 CRESCENT DR BROADVIEW IL 60153 8...

Page 192: ...200 2538 00 1 C O VER R EAR rPLASTIC 80009 200 2538 00 211 0691 00 2 S C R E W M A C H IN E 6 32 X 0 625 PNH 01536 ORD BY DESCR 213 0882 00 1 SC R EW TAPPING 6 32 X 0 437 TYPE C 01536 ORD BY DESCR 334 0076 00 1 M A R K E R ID E N T M K D H AND LE 2215A 80009 334 0076 00 367 0289 00 1 H A N D LE C AR R YIN G 13 855 SST 80009 367 0289 00 212 0144 00 2 SC R EW TPG TF 8 16 X 0 562 L 93907 225 38131 01...

Page 193: ...3 ...

Page 194: ...2215A SERVICE ...

Page 195: ...4 7 5 ...

Page 196: ... SUBPANEL FRONT 80009 386 4850 00 25 213 0881 00 3 SCREW TAPPING 6 32 X 0 25 TYPE C 01536 ORD BY DESCR 26 213 0882 00 2 SCREW TAPPING 6 32 X 0 437 TYPE C 01536 ORD BY DESCR 27 348 0660 00 4 CUSHION CRT POLYURETHANE 80009 348 0660 00 28 361 1192 00 1 SPACER SLEEVE 0 45 L X 0 25 ID AL 80009 361 1192 00 29 407 2824 00 1 BRACKET GROUND PANEL STEEL 80009 407 2824 00 30 210 0586 00 2 NUT PL ASSEM WA 4 4...

Page 197: ...27 LONG X 0 25 HEX BRS 80009 129 0339 00 65 211 0303 00 2 SCREW MACHINE 4 40 X 0 25 FLH 100 DEG 01536 ORD BY DESCR 66 210 0202 00 1 TERMINAL LUG 0 146 ID LOCKING BRZ TIN PL 78189 2104 06 00 2520N 67 210 0457 00 1 NUT PL ASSEM WA 6 32 X 0 312 STL CD PL 83385 ORD BY DESCR 68 334 3379 02 1 MARKER IDENT MARKED GROUND SYMBOL 80009 334 3379 02 69 407 2729 00 1 BRACKET HEAT SK AL 80009 407 2729 00 70 211...

Page 198: ...PL 21 211 0325 00 1 SCR ASSEM WSHR 4 40 X 0 25 PNH STL TORX 01536 ORD BY DESCR 22 361 1191 00 1 SPACER CKT BD 0 222 X 0 125 X 0 25 80009 361 1191 00 361 1081 00 1 SPACER LED PLASTIC 80009 361 1081 00 ATTENUATOR BOARD ASSY INCLUDES 23 384 1056 00 2 EXTENSION SHAFT 0 125 OD X 6 58 INCH LON 80009 384 1056 00 376 0209 00 2 CPLG SHAFT RGD 0 127 ID PLASTIC 80009 376 0209 00 4 SWITCH ASSY SEE S1 S10 S51 ...

Page 199: ... 40 131 0787 00 4 41 337 2944 00 1 42 210 0586 00 2 43 129 0906 00 2 TERMINAL PIN 0 365 L X 0 025 PH BRZ GOLD TERMINAL PIN 0 64L X 0 025 SQ SHIELD ELEC SW BOARDS BOTTOM NUT PL ASSEM WA 4 40 X 0 25 STL CD PL SPACER POST 0 685 L W 4 40 INT EXT TH 22526 22526 80009 78189 80009 Mfr Part Number 48283 036 47359 337 2944 00 211 041800 00 129 0906 00 10 8 REV JUL 1984 ...

Page 200: ......

Page 201: ...R ____ OPTION A2 U NITED KINGDOM 4 161 0104 05 C A B LE A S S Y P W R 3 18 AW G 240V 98 0 L S3109 ORD BY DESCR OPTION A 3 A U S TR A LIA 5 161 0104 08 C A B LE A S S Y P W R 3 18 AW G 240V 98 0 L T i l 05 ORD BY DESCR ____ OPTION A4 NORTH AM ER IC AN 6 161 0167 00 C A B LE ASSY PW R 3 0 X 0 75 6A 240V 2 5M S3109 ORD BY DESCR OPTION A 5 S W ITZER LAND O P T IO N A L AC C ESSO R IES 070 4735 00 M A ...

Page 202: ...2215A SERVICE ...

Page 203: ...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...

Page 204: ...ed f Adjust the A TRIGGER LEVEL control for a stable display g Set the HORIZONTAL MODE switch to B h ADJUST B Trigger Sensitivity R627 while rotating the B TRIGGER LEVEL contol slowly so that the B Trigger is just able to be maintained i Return the HORIZONTAL MODE switch to A REPLACEABLE ELECTRICAL PARTS LIST CHANGES CHANGE TO A5R627 311 1921 00 RES VAR NONWIR 250 OHM 10 0 5W Page 1 of 1 a Set VER...

Page 205: ...000 2775 00D ...

Page 206: ...ocedure 2 Adjust Trigger Sensitivity R479 a Set VERTICAL MODE CH 1 CH 1 VOLTS DIV 0 1 V Input Coupling both AC ASEC DIV 10 M s b Connect the leveled sine wave generator output via a 50 0 cable and a 50 0 termination to the CH 1 OR X input connector c Set the generator to produce a 50 kHz 2 2 division display d Set the CH 1 VOLTS DIV switch to 1 V e ADJUST Trigger Sensitivity R479 while rotating th...

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