Tektronix TAS 465 Service Manual Download Page 176

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8Ć14

A3L107

108-0736-01

COIL,RF:FIXED,828NH

0JR03

108-0736-01

A3L108

108-0170-02

COIL,RF:FIXED,360NH

0JR03

108-0170-02

A3L109

108-0436-00

COIL,RF:FIXED,240UH ON FORM

0JR03

OBD

A3L110

108-0408-01

COIL,RF:FIXED,91NH

0JR03

108-0408-01

A3L111

108-1352-00

COIL,RF:FIXED,22UH,10%

54583

SPT0305-220K

A3L112

108-1352-00

COIL,RF:FIXED,22UH,10%

54583

SPT0305-220K

A3L113

108-1352-00

COIL,RF:FIXED,22UH,10%

54583

SPT0305-220K

A3L300

108-1352-00

COIL,RF:FIXED,22UH,10%

54583

SPT0305-220K

A3Q101

151-0411-00

TRANSISTOR,SIG:BIPOLAR,NPN;30V,400MA,1.2GHZ 04713

2N5943

A3Q102

151-0411-00

TRANSISTOR,SIG:BIPOLAR,NPN;30V,400MA,1.2GHZ 04713

2N5943

A3Q201

151-0711-02

TRANSISTOR,SIG:BIPOLAR,NPN;25V,50MA,650MHZ 04713

MPSH10RLRP

A3Q202

151-0711-02

TRANSISTOR,SIG:BIPOLAR,NPN;25V,50MA,650MHZ 04713

MPSH10RLRP

A3Q204

151-0190-00

TRANSISTOR,SIG:BIPOLAR,NPN;40V,200MA

04713

2N3904

A3Q205

151-0347-00

TRANSISTOR,SIG:BIPOLAR,NPN;160V,600MA

0JR04

2N5551

A3Q206

151-0347-00

TRANSISTOR,SIG:BIPOLAR,NPN;160V,600MA

0JR04

2N5551

A3Q208

151-0350-03

TRANSISTOR,SIG:BIPOLAR,PNP;150V,600MA

27014

S44295

A3Q209

151-0350-03

TRANSISTOR,SIG:BIPOLAR,PNP;150V,600MA

27014

S44295

A3Q210

151-0271-00

TRANSISTOR,SIG:BIPOLAR,PNP;15V,30MA,2.0GHZ

04713

MPSH69

A3Q211

151-0271-00

TRANSISTOR,SIG:BIPOLAR,PNP;15V,30MA,2.0GHZ

04713

MPSH69

A3Q212

151-0190-00

TRANSISTOR,SIG:BIPOLAR,NPN;40V,200M

04713

2N3904

A3Q301

151-0188-00

TRANSISTOR,SIG:BIPOLAR,PNP;40V,200MA

04713

2N3906

A3Q302

151-0188-00

TRANSISTOR,SIG:BIPOLAR,PNP;40V,200MA

04713

2N3906

A3Q303

151-0190-00

TRANSISTOR,SIG:BIPOLAR,NPN;40V,200MA

04713

2N3904

A3Q304

151-0190-00

TRANSISTOR,SIG:BIPOLAR,NPN;40V,200MA

04713

2N3904

A3Q307

151-0199-00

TRANSISTOR,SIG:BIPOLAR,PNP;12V,80MA,SWITCH 04713

MPS3640

A3Q308

151-0350-03

TRANSISTOR,SIG:BIPOLAR,PNP;150V,600MA

27014

S44295

A3Q360

151-0749-00

TRANSISTOR,SIG:BIPOLAR,PNP;400V,500MA

04713

MPSA94

A3Q361

151-0749-00

TRANSISTOR,SIG:BIPOLAR,PNP;400V,500MA

04713

MPSA94

A3R101

322-3001-00

RES,FXD:METAL FILM;10 OHM,1%,0.2W

91637

CCF501G10R00F

A3R102

322-3001-00

RES,FXD:METAL FILM;10 OHM,1%,0.2W

91637

CCF501G10R00F

A3R103

313-1202-00

RES,FXD,FILM:2K OHM,5%,0.2W

91637

CCF50-2-20000J

A3R104

322-3217-00

RES,FXD,FILM:1.78K OHM,1%,0.2W

91637

CCF501G17800F

A3R105

313-1102-00

RES,FXD,FILM:1K OHM,5%,0.2W

91637

CCF50-2-10000J

A3R106

322-3085-00

RES,FXD:METAL FILM;75 OHM,1%,0.2W

91637

CCF501G75R00F

A3R107

322-3085-00

RES,FXD:METAL FILM;75 OHM,1%,0.2W

91637

CCF501G75R00F

A3R108

313-1470-00

RES,FXD,FILM:47 OHM,5%,0.2W

91637

CCF50-2-47R00J

A3R109

313-1470-00

RES,FXD,FILM:47 OHM,5%,0.2W

91637

CCF50-2-47R00J

A3R111

311-2234-00

RES,VAR,TRMR:CERMET;5K OHM,20%,0.5W

TK2073

GF06UT2 502 M L

A3R112

311-2230-00

RES,VAR,TRMR:CERMET;500 OHM,20%,0.5W

TK2073

GF06UT2 501 M L

A3R113

322-3085-00

RES,FXD:METAL FILM;75 OHM,1%,0.2W

91637

CCF501G75R00F

A3R114

322-3085-00

RES,FXD:METAL FILM;75 OHM,1%,0.2W

91637

CCF501G75R00F

A3R115

313-1202-00

RES,FXD,FILM:2K OHM,5%,0.2W

91637

CCF50-2-20000J

A3R116

313-1103-00

RES,FXD,FILM:10K OHM,5%,0.2W

91637

CCF50-2-10001J

A3R117

313-1103-00

RES,FXD,FILM:10K OHM,5%,0.2W

91637

CCF50-2-10001J

A3R120

313-1103-00

RES,FXD,FILM:10K OHM,5%,0.2W

91637

CCF50-2-10001J

A3R121

313-1103-00

RES,FXD,FILM:10K OHM,5%,0.2W

91637

CCF50-2-10001J

Summary of Contents for TAS 465

Page 1: ...100 and Above 070 9403 00 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 al...

Page 2: ...patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc...

Page 3: ...1 0 i 0 1 3 4 0 4 3 4 3 0 3 1 31 0 31 0 6 6 4 6 5 4 6 4 6 0 0 6 6 6 6 4 6 2 6 0 6 0 6 0 6 6 6 6 0 6...

Page 4: ...log Board Interface Subsystem A5 3 5 Vertical Output A3 3 6 Horizontal Output A3 3 6 High Voltage A3 3 6 Menu Switches A4 3 7 CPU A4 3 7 FPP Pots Probes A4 3 7 LEDs Driver A4 3 7 Switches A4 3 8 Funct...

Page 5: ...Delay Accuracy 4 22 Check Trigger Sensitivity 4 24 Video Trigger Sensitivity 4 29 Personnel 5 1 Access to Adjustments 5 1 Warm Up Period 5 1 Complete Adjustment 5 3 Partial Adjustment 5 3 Adjustment...

Page 6: ...rocedures 6 10 0 5 Line Cord 6 14 Line Fuse 6 15 5 5 Removing Front Panel Knobs and Shafts 6 16 Installing Front Panel Knobs and Shafts 6 16 1 5 Rear Cover 6 18 Cabinet 6 18 Replacing the Front Feet 6...

Page 7: ...6 51 Options Options A1 A5 International Power Cords 7 1 Warranty Plus Service Options 7 1 Option 3R Rackmount 7 1 Option 02 Front Cover and Pouch 7 2 Option 23 Additional Probes 7 2 Option 9C Certifi...

Page 8: ...vi...

Page 9: ...ure 4 9 X Axis Gain Test Setup 4 19 Figure 4 10 Timing Test Setup 4 20 Figure 4 11 Dual Delay Test Setup 4 23 Figure 4 12 Trigger Sensitivity Test Setup One 4 25 Figure 4 13 Trigger Sensitivity Test S...

Page 10: ...l Module Removal 6 22 Figure 6 11 Disassembly of Front Panel Assembly 6 23 Figure 6 12 Front Panel Ground Spring 6 24 Figure 6 13 Menu Flex Circuit Board Removal 6 25 Figure 6 14 A1 Analog Board Remov...

Page 11: ...ix 3 2 1 3 3 2 1 3 3 2 3 3 2 3 3 2 3 3 2 1 3 3 2 1 3 3 2 3 3 2 3 3 2 0 1 3 3 2 3 3 2 1 3 3 2 3 3 2 3 3 2 3...

Page 12: ...x...

Page 13: ...Cursors 1 13 Table 1 15 Warranted Characteristics XY Operation 1 13 Table 1 16 Warranted Characteristics Power Requirements 1 14 Table 1 17 Warranted Characteristics Environmental and Safety 1 14 Tab...

Page 14: ...atic Discharge Damage 6 3 Table 6 2 External Inspection Check List 6 6 Table 6 3 Tools Required for Module Removal 6 11 Table 6 4 Equipment Required for Troubleshooting 6 41 Table 6 5 Symptom Matrix 6...

Page 15: ...r property H statements identify conditions or practices that could result in personal injury or loss of life These two terms appear on equipment H indicates a personal injury hazard not immediately a...

Page 16: ...xiv...

Page 17: ...xv...

Page 18: ...xvi...

Page 19: ...ration of the oscillo scope to the block level Use the section to verify the functionality and war ranted characteristics of the oscilloscope Use the section to bring the TAS 465 Analog Oscilloscope i...

Page 20: ...of how to operate your TAS 400 Series Analog Oscilloscopes H The Instruction manual Tektronix part number 070 8523 XX contains detailed operating information and module level service information H Th...

Page 21: ...s Its performance addresses the needs of both benchtop and portable applications with the following features H 100 MHz minimum bandwidth H Two channel input H Complete cursor measurement system H Volt...

Page 22: ...on the menu displayed contains functions such as coupling and band width The buttons below this main menu select a function such as cou pling and displays a sub menu of settings for that function such...

Page 23: ...complete set of features for triggering the horizontal system You can configure trigger for source slope coupling mode and holdoff Video triggers are available for triggering on video sig nals You ca...

Page 24: ...1 4...

Page 25: ...d CH 2 Input Coupling DC AC or GND GND input coupling disconnects the input connector from the atten uator and connects a ground reference to the input of the attenua tor Sensitivity Range 2 mV div to...

Page 26: ...ision to 10 times the Main seconds division setting The maximum value can not exceed the end of the Main sweep Delta Time Control Range 0 to 10 divisions to the right of setting of the delay control b...

Page 27: ...Vertical Deflection System Volts div variables in calibrated settings Nonvolatile Setup Memory 4 Setups Fuse Rating Either of two fuses may be used Fuse types are as follows Voltage Range Fuse 250 V...

Page 28: ...d paint finish on an aluminum cabinet Construction Material Chassis parts constructed of aluminum alloy front panel con structed of plastic laminate circuit boards constructed of glass lami nate Tektr...

Page 29: ...er the following conditions H The oscilloscope has been adjusted at an ambient temperature between 20_ C and 30_ C H A warm up period of at least 20 minutes has occured H The operating temperature is...

Page 30: ...used TAS 465 Crosstalk Channel Isolation 50 dB at 10 MHz 35 dB at 100 MHz Delay Between Channels Full Band width 200 ps between channels 1 and 2 for equal volts div and coupling settings Common mode...

Page 31: ...ivisions Excludes the greater of either the first 4 division or 25 ns from the sweep start of the magnified sweep and anything beyond the 100th magnified division Horizontal Position Control Range The...

Page 32: ...reading 0 4 division 1 mV External X1 5 of reading 40 mV External X10 5 of reading 400 mV Noise Reject All except Line and External 5 of reading 1 1 division 1 mV External X1 5 of reading 110 mV Exter...

Page 33: ...de NTSC PAL and SECAM Stable trigger on vertical sync interval 20 ms D Same as Time Base Accuracy 0 1 division D Readouts calculated using DTime cursor difference Absolute Volts Accuracy Accuracies ar...

Page 34: ...EC Self certified by Tektronix to comply with IEC 348 recommendation Temperature Operating and Nonoperating Operating 10_ C to 55_ C Nonoperating 51_ C to 71_ C Humidity Operating and Nonoperating To...

Page 35: ...l Trace Shift 10_ C to 35_ C 0 5 mV 35_ C to 55_ C 2 mV Variable Volts Div Offset 0 5 division trace shift while changing the variable volts div setting Chop Mode Clock Rate 500 kHz 1 MHz Chop mode is...

Page 36: ...LF REJ 0 30 division from 100 kHz to 25 MHz increasing to 1 0 division at 150 MHz attenuates signals below the lower 3 dB cutoff frequency of 50 kHz AC 0 30 division from 350 Hz to 25 MHz increasing...

Page 37: ...ge 25 V peak 25 Vp p AC at 10 kHz or less Probe Compensator Output Voltage d F The limits are as follows and Frequency Characteristic Limits Output Voltage 5 V base top 10 into a 1 MW load Frequency 1...

Page 38: ...1 18...

Page 39: ...may be required 2 Check that the Line Voltage Range switch Figure 2 1 is at the proper setting for your power system 3 Check the fuse to ensure it is the proper type and rating the rear panel provides...

Page 40: ...2 2 Grasp the Fuse Drawer and Pull Straight Out Pop the Fuse Up from the Bottom of the Drawer Spare Fuse Specifications POWER Button...

Page 41: ...layed and vertical controls and menus are assigned to channel 1 3 Press the button located on the front panel The indicator lights channel 2 is displayed and controls and menus are assigned to channel...

Page 42: ...g any probe to take measurements compensate the probe to match the input channel See Compensating the Probe on page 2 5 The feature of the TAS 465 Oscilloscope automatically sets most of the front pan...

Page 43: ...2 5...

Page 44: ...lly using the vertical control 7 Set the horizontal scale to 200 ms using the control 8 Set the trigger coupling to use the following guide MAIN TRIGGER MENU MODE SRC CPLG SLOPE HOLDOFF Auto Ch1 Noise...

Page 45: ...2 7 Probe Compensated Correctly Probe Over Compensated Probe Under Compensated Low frequency Adjustment...

Page 46: ...LG SLOPE HOLDOFF Auto Auto Level Normal Single Sequence Video Line Video Field Priority Vert Ch1 Ch2 Add Line EXT DC Noise Reject HF Reject AC LF Reject Rising Falling Off min On Button Main Mode Sele...

Page 47: ...levels is the high 1 state and the more negative level is the low 0 state Signal states may also be described as true meaning their active state or false meaning their non active state The specific v...

Page 48: ...INS J50 P50 A05 PROCESSOR BOARD 16 16 PINS 16 PINS J30 J84 J30 P30 P30 P84 5 PINS FRONT PANEL GND J35 PROBE COMP A04 BEZEL BUTTON BOARD J40 10 PINS P40 10 PINS A09 12 J55 5 PINS 12 TERMINATIONS 5 5 TE...

Page 49: ...0 3 3 1...

Page 50: ...or the hybrid provides vertical signal processing triggers sweeps sequencing logic and intensity control A1 1 A high impedance buffer is used to interface the external trigger signal to the analog acq...

Page 51: ...ash ROM has a require ment which states that it must not have an OE during a write cycle Conse quently the gates of U221 in this subsystem prevent this from happening A5 4 The readout subsystem consis...

Page 52: ...The input signal from the analog board is current in and the output signal to the CRT is a voltage A3 3 This circuitry provides the necessary static and dynamic levels to support the CRT biasing and...

Page 53: ...can for pots or probes If pots are to be scanned one of 10 possible pot inputs are read from either multiplexer U420 or U421 The voltage at the wiper of the pot selected is applied to the front panel...

Page 54: ...an isolation diode and the column line is pulled low indicating a switch closure The power supply is a switching power converter It supplies power to all oscilloscope circuitry Two generations of powe...

Page 55: ...ng that the oscilloscope functions properly A standard accessory probe included with this oscilloscope is the only equipment required To rapidly confirm that this oscilloscope functions and was adjust...

Page 56: ...roperly These procedures make references to the graticule lines For example position the cursor to the second vertical graticule line Figure 4 1 shows how to interpret the references First Vertical Gr...

Page 57: ...center or sales engineer for more information These tests verify that the internal power on diagnostics passed by confirm ing no error messages are reported on screen The purpose of these procedures i...

Page 58: ...front panel connect the probe ground to the ground barrel of an unused input BNC see Figure 4 2 Some functional checks require that you install the probe on connectors other than All functional checks...

Page 59: ...The vertical scale readout is set to 2 V for the channel under test and a square wave signal about 2 6 divisions in amplitude is on screen H Pressing the button sets the trigger level readout to appro...

Page 60: ...cule line 5 Press the button removing the channel 2 display 6 Press the button and set to 7 Verify that a second waveform of approximately 2 6 divisions amplitude has been added to the display 8 Set t...

Page 61: ...sec div scale to 500 ms 7 Press the button and set to 8 Press the button 9 Select from the main menu and vertically position the delayed time base below the main time base using the General Purpose Kn...

Page 62: ...he button and set to and to 10 Verify that the delayed trigger is operational confirming that the follow ing statements are true H Rotating the trigger control changes the delayed trigger level readou...

Page 63: ...ration routines All calibration routines require a successful completion no failed message The Temperature Compensation Calibrations affect the accuracy of the display system therefore they should onl...

Page 64: ...art centered horizontally see Figure 4 3 7 Select when you have the appropriate display 8 One dot is now displayed 9 Use a combination of the button and the General Purpose Knob to horizontally center...

Page 65: ...tered horizontally see Figure 4 5 13 Select when you have the appropriate display 14 A pass or failed status appears on the screen 15 Select to exit the routine displaying a message 1 Press the button...

Page 66: ...4 12...

Page 67: ...ing require ments are met H The cabinet must be installed on the oscilloscope H The show no failures H You must have completed the beginning on page 4 9 H The oscilloscope must have an operating warm...

Page 68: ...upler Dual Input Female BNC to dual male BNC Tektronix part number 067 0525 02 Signal interconnection 8 Generator Lev eled Sine Wave 200 kHz to 250 MHz Variable amplitude from 5 mV to 4 Vp p into 50 W...

Page 69: ...utton and make the following selections H Set to H Set to 2 7 Set the volts div scale to 2 mV 8 Position the trace three divisions below the center horizontal graticule line 9 Connect the standard amp...

Page 70: ...al Purpose Knob counterclockwise re duces the displayed signal amplitude to two divisions or less Set to 16 Disconnect the test setup from the oscilloscope 17 Repeat this procedure until you have veri...

Page 71: ...n the range of 169 mV to 231 mV 15 Press the button displaying the delay trigger menu 16 Set to 2 0 1 and to 17 Press the button 18 Check that the Trigger Level Accuracy readout is in the range of 169...

Page 72: ...its given in Table 4 3 to confirm the bandwidth of the input channels a Set the volts div scale as indicated b Set the signal generator for the specified amplitude at the reference frequency c While c...

Page 73: ...nect the output of the pulse generator to the input as shown Figure 4 9 Pulse Generator Precision Cable 1 0 1 3 Set the output of the pulse calibration generator for 50 mV 4 Press the button 5 Set the...

Page 74: ...v scale to 20 ns 6 Set the volts div scale to 500 mV 7 Center the time mark display vertically 8 Press the button and set D to 9 Position the rising edge of the second time mark to the second vertical...

Page 75: ...163 ms 50 ms 50 ms 0 16 division 392 ms to 408 ms 100 ms 0 1 ms 0 16 division 784 ms to 816 ms 200 ms 0 2 ms 0 16 division 1 57 ms to 1 63 ms 500 ms 0 5 ms 0 16 division 3 92 ms to 4 08 ms 1 ms 1 ms...

Page 76: ...100 ns 0 1 ms 0 24 division 100 ms 0 1 ms 0 24 division 1 Change the volts div scale as necessary to maintain vertical amplitude 2 At this setting two cycles of the signal are displayed for every five...

Page 77: ...13 Select 14 Using the General Purpose Knob position the intensified zone on the main sweep to the second time marker then slightly adjust the General Purpose Knob until the delayed sweep time marker...

Page 78: ...e center 24 Check the dual delay accuracy DTime reading is in the range of 1 58 ms to 1 62 ms 25 Press the button and set D to 26 Press the button and select 1 4 27 Press the button and set to 28 Disc...

Page 79: ...he following selections from the main trigger menu H Set to H Set to H Set to H Set to 9 Press the button and make the following selec tions from the delay trigger menu H Set to H Set to H Set to H Se...

Page 80: ...Knob 21 Press the button and set to 22 Press the button and confirm a stable delayed sweep display 23 Set to 24 Press the button and confirm a stable delayed sweep display 25 Press the button and set...

Page 81: ...upler 0 2 Set the volts div scale to 1 V 3 Adjust the sine wave generator amplitude for a one division display at 25 MHz 4 Set the sine wave generator frequency as follows H TAS 465 150 MHz 5 Press th...

Page 82: ...of the delay time may be necessary to obtain a stable delayed sweep display Press the Horizontal Menu button and adjust the delay time using the General Purpose Knob Press the Trigger Menu button aft...

Page 83: ...the input as shown in Figure 4 16 Television Signal Generator 75 W Termination 75 W Cable 0 3 Press the button 4 Set the volts div scale to 200 mV 5 Set the sec div scale to 100 ms 6 Press the button...

Page 84: ...4 30...

Page 85: ...e adjustments after every 2 000 hours of operation or once a year if used infrequently Before you perform this procedure you need to address the following requirements This procedure is only to be per...

Page 86: ...5 2 Display Driver board Analog board...

Page 87: ...5 3 1 0 1 0 3 5 2 3 0 3 0 1 1 3 1 3 3 4 3 3 1 3 0 0 1 0 3 Adjustment Dependencies 1 5 0 3 1 Complete Adjustment 5...

Page 88: ...adjustment section lists all neces sary equipment required to perform the adjustments One digital multimeter item 13 and one adjustment tool item 15 This procedure requires adjustment to the Power Su...

Page 89: ...button and make the following selections from the menu H Set to H Set to 4 7 Position the channel 1 trace to the center horizontal graticule line and adjust the control for a well defined display 8 A...

Page 90: ...mark display across the entire graticule area 22 Set the control to view the readout 23 Disconnect the calibration setup from the oscilloscope One pulse generator item 10 one precision coaxial cable...

Page 91: ...nob and the button 12 Set the volts div scale to 20 mV 13 Press the button 14 Set the channel 2 volts div scale to 20 mV 15 Press the button and make the following selections from the menu channel 2 H...

Page 92: ...1 Disconnect all signal inputs from the oscilloscope 2 Press the button to display the Utility menu CAUTION To avoid replacing the calibration constants with erroneous values be sure to complete all...

Page 93: ...t Dots Eight Divisions Apart Centered Horizontally 7 Again use a combination of the button and the General Pur pose Knob to position the dots 8 divisions apart centered horizontally see Figure 5 4 8 S...

Page 94: ...part centered horizontally see Figure 5 6 Gain and Position Adjustment Toggle Between Gain and Position Adjustment Lines Eight Divisions Apart Centered Horizontally 15 Select with the menu button when...

Page 95: ...b Select when adjusted 22 Adjust the 2 ns main sweep accuracy by performing these substeps a Using the General Purpose Knob adjust the display for 2 time markers per 5 divisions over the center 8 div...

Page 96: ...2 10 or above remove jumper J205 CAL DIS on the CPU board See Figure 5 17 on page 5 23 for the location of J205 If you do not remove this jumper the message See manual to enable Facto ry Cal appears w...

Page 97: ...tion routine can be terminated by selecting Abort The abort option appears through the remainder of this Factory Vertical Cal routine Dual input Coupler Precision Cable DC Calibration Generator DC Cal...

Page 98: ...ng The TOGGLE button selects the function of the General Purpose Knob 17 Use a combination of the button and the General Purpose Knob to position the dots 6 divisions apart centered horizontally see F...

Page 99: ...not in place erroneous calibration constants can result if the calibration routine is acciden tally invoked and not properly completed One pulse generator item 10 one precision coaxial cable item 5 on...

Page 100: ...term response of the pulse front corner 10 Set the sec div scale to 20 ns 11 Adjust R140 and C121 on the Display Driver board for minimum signal aberrations of the pulse front corner NOTE Some interac...

Page 101: ...ms 4 Press the button 5 Press the button and set to 6 Set the volts div scale to 200 mV 7 Set the sec div scale to 200 ms 8 Using the vertical control and the generator pulse amplitude obtain a 5 divi...

Page 102: ...he test setup from the oscilloscope None This procedure requires adjustments to the Display Driver board See Figure 5 14 on page 5 20 for the location of the adjust ments Low Frequency Output Compensa...

Page 103: ...5 19 D D...

Page 104: ...5 20 R321 R322 R323 R112 R154 R111 R140 R141 C121 C122...

Page 105: ...5 21 Ch2 10X Ch2 100X Ch1 10X Ch1 100X...

Page 106: ...5 22 R43...

Page 107: ...5 23 J205 CAL DIS...

Page 108: ...5 24...

Page 109: ...6 1 H H H H H H...

Page 110: ...procedures H Electrical schematics H Parts lists Replace failed modules with fully tested modules obtained from the factory Schematics of each module are provided for repair to the component level of...

Page 111: ...velocity compressed air when cleaning dust from modules Table 6 1 lists the relative susceptibility of various classes of semiconduc tors Static voltages of 1 kV to 30 kV are common in unprotected env...

Page 112: ...6 4...

Page 113: ...rinse with deionized water Use only deionized water when cleaning the menu buttons or front panel buttons Before using any other type of cleaner consult your Tektro nix Service Center or representati...

Page 114: ...dules Clear or wash out dirt Carrying handle and cabinet feet Correct operation Repair or replace defective module Accessories Missing items or parts of items bent pins broken or frayed cables and dam...

Page 115: ...and wait 60 seconds for the majority of the alcohol to evaporate 6 Use hot 50_ C to 60_ C deionized water to thoroughly rinse them 7 Dry all parts with low pressure deionized air 8 Dry all components...

Page 116: ...6 8...

Page 117: ...nting ESD in this section This subsection contains the following items H This preparatory information that you need to properly do the procedures that follow H A list of equipment required to remove a...

Page 118: ...emove and install modules in this oscilloscope Procedures refer to the front rear top and other portions of the oscilloscope Figure 6 1 illustrates these references The procedures are described in the...

Page 119: ...t for T 15 size screw heads 3 T 20 Torx tip TorxR driver bit for T 20 size screw heads Used only for remov al of the cabinet handle 4 Nut driver 5 16 inch Used for removing the CRT earth ground cable...

Page 120: ...Fuse Line Cord Handle Assembly Front Foot 2 Rear Cover Front Cover Optional Trim Ring Menu Button Elastomer Menu Flex Circuit A4 Front Panel Assembly Front Panel Knobs Shafts Cabinet Menu Button Moun...

Page 121: ...et Implosion Shield CRT MU Shield Rear CRT Bracket Fan CPU Board Display Board High Voltage Cover Attenuator Assembly Attenuator Shield Display Control Board Mounting Screw Mounting Screw Power Supply...

Page 122: ...the oscilloscope WARNING Unplug the line cord from the line voltage power source before continuing Failure to do so can cause injury or death Prepare the oscilloscope by positioning the bottom side d...

Page 123: ...6 15 1 Unplug 2 Rotate 3 Pull Line Fuse...

Page 124: ...6 16 When re installing the knobs note there are two sizes Be sure to re install the proper size knob in the proper location...

Page 125: ...6 17 Front Foot Rotate and remove Mounting Screws 4 Mounting Screw...

Page 126: ...6 18 4 1 0 0 4 2 1 0 0 0 0 0 0 0 4 2 1 1 1 3 0 3 4 1 3 1 0 0 1 0 4 5 1 H 0 0 H 0 4 1 2 4 3 3 3 1 2 2 1...

Page 127: ...rasp the power button and pull straight out from the chassis 2 Install the power button by pushing the button onto the power button shaft until it locks into place 1 If the menu buttons were removed i...

Page 128: ...stalling the EMI gaskets align the trim ring to the front of the chassis and push it on to seat Be sure that both pairs of flex locks one pair each at the inside top and bottom of the trim ring snap o...

Page 129: ...6 21 Spudger EMI Gaskets 4 H H H...

Page 130: ...ol to front panel cable at J84 H The menu flex circuit to front panel at J40 H The CPU to front panel cable at J30 5 Lift the Front Panel module out from the chassis Front Panel Assembly Press Latch t...

Page 131: ...st of the assembly 4 At this point the control potentiometers may be lifted out for cleaning they are not field replaceable Lift the two potentiometers out from the back of the front panel assembly Pe...

Page 132: ...Ground Spring Rear of Front Panel Perform the next steps to reassemble the Front Panel module 1 If the front panel assembly was disassembled for cleaning in step 4 apply a light thin coating of beari...

Page 133: ...ront of the main chassis It is held on by its sticky backing See Figure 6 13 2 Wipe the front of the chassis using isopropyl alcohol and a clean lint free cloth Let dry Some adhesive from the flex cir...

Page 134: ...ormed first H Rear Cover Removal H Cabinet Removal H Front Trim Removal 1 Set the oscilloscope so its top side is down on the work surface and its front is facing you 2 Disconnect the delay line from...

Page 135: ...of the Display Driver board A3 Refer to Figure 6 15 2 Disconnect the delay line from its holder and at connector J69 on the Display Driver board 3 Disconnect the cables from J70 J71 J72 J73 J74 J75 a...

Page 136: ...6 28 Display Driver Board A3 Mounting Screw High Voltage Cover Mounting Screw H H H...

Page 137: ...6 29 CRT Implosion Shield Spudger Slot In CRT Bracket Implosion Shield Guides...

Page 138: ...3 Rotate the oscilloscope so the side that houses the fan mount is facing upwards 4 Depress the two flex locks to release them see Figure 6 18 5 While holding the flex locks released slide the fan mo...

Page 139: ...6 31 Fan Mount Flex locks Fan...

Page 140: ...erably a full face shield Avoiding striking the CRT with or against any object Store the CRT with its display face down in a protected location placing it on a soft nonabrasive surface to prevent scra...

Page 141: ...r of the CRT 9 Disconnect the vertical and horizontal control wires from the side of the CRT Note the proper location of both sets of wires for reinstallation 10 Slide the CRT shield and its front sup...

Page 142: ...re in their proper place in each corner of the Brack et 9 Lower the rear of the CRT into the chassis and press down on the CRT Rear Bracket until it snaps into the chassis 10 Route the vertical and ho...

Page 143: ...Front CRT Bracket Implosion Shield CRT CRT Anode Lead CRT Shield Rear CRT Bracket Display Control Board Light Guide Static Ground Contact CRT Socket Cover CRT Mount Cushion 4 CRT Socket CRT Shield Su...

Page 144: ...6 36 H H H H H NOTE To properly guide the light to the CRT the beveled edge of the light guide must be facing up toward the CRT H H H H H H...

Page 145: ...emoved components The procedures that follow describe how to remove and install the CRT front bracket This procedure requires that the following procedures be performed first H Rear Cover Removal H Ca...

Page 146: ...cables at connectors J80 J82 and J84 5 Install all previously removed components The procedures that follow describe how to remove and install the Power Supply module This procedure requires that the...

Page 147: ...m down on the work surface 5 Unplug the cable going to the A5 CPU board at J55 6 Unplug the two wide cable from the fan 7 Unplug the red CRT anode lead from the power supply connector 8 Remove the two...

Page 148: ...6 40...

Page 149: ...tify possible faulty modules and then perform the troubleshooting procedure s indicated The cabinet must be removed to gain access to the modules for measuring signals and voltages Refer to the Remova...

Page 150: ...s No display at all f f f f F Traces or readout but not both f F f f Abnormal readout F f Abnormal traces f F Abnormal traces and readout f f F Power on diagnostics indicates a failure F F f Self cali...

Page 151: ...Front Panel Control Problems Front panel controls do not work but readout display works f F Front panel controls do not work and the readout display is abnormal F f CRT Bezel buttons do not work but o...

Page 152: ...nel board troubleshooting procedure Measure the signal on U217 pin 26 on the A5 CPU board with the test oscilloscope Is the signal amplitude approximately 5V and the period 60 nS No Yes Measure the si...

Page 153: ...heck pins 12 10 9 6 and 1 for shorts to ground Yes No Are any of the pins shorted Replace the A1 Analog board Perform the A3 Display Driver Board Troubleshooting Procedure Press the button and rotate...

Page 154: ...A1 Analog board Replace the A5 CPU board Select and measure the voltage across pins 16 and 17 of J67 with a DMM or oscilloscope No Yes Does the voltage change as the vertical position knob is rotated...

Page 155: ...board Check the pins listed above for shorts to ground Yes No Are any of the pins shorted Replace the A3 Display Driver board Measure voltage on pin 1 of J71 with a high voltage probe and a DMM Was th...

Page 156: ...us thumbwheel No Yes Does the voltage vary as the position knob is moved Perform the A2 Display Control Board Troubleshooting Procedure Replace the CRT No Replace the A3 Display Driver board Perform t...

Page 157: ...ns 1 and 10 again for shorts to ground Perform the A5 CPU Board Troubleshooting Procedure Yes No Are any of the pins shorted Replace the A3 Display Driver board Replace the A62 Front Panel Module With...

Page 158: ...2V No Yes Do the voltages vary approximately within their range Disconnect the cable to J84 Perform the front panel troubleshooting procedure to check the supply voltages Are the front panel voltages...

Page 159: ...gth 2 If you are shipping the TAS 465 Oscilloscope to a Tektronix field office for repair attach a tag to the oscilloscope showing the instrument owner and address the name of the person to contact ab...

Page 160: ...6 52...

Page 161: ...ranty appears following the title page in this manual H Tektronix provides five years of warranty remedial service H Tektronix provides five years of warranty remedial service and four oscilloscope ca...

Page 162: ...10X switchable passive probes in addition to the two standard accessory P6109B probes normally shipped with the instrument Tektronix ships a Certificate of Calibration that states this instrument mee...

Page 163: ...Office or representative will contact you con cerning any change in part number A list of assemblies can be found at the beginning of the electrical parts list The assemblies are listed in numerical...

Page 164: ...rt number to be used when ordering replacement part from Tektronix Column three 3 indicates the serial number at which the part was first used Column four 4 indicates the serial number at which the pa...

Page 165: ...INGTON HEIGHTS IL 60005 TK2469 UNITREK CORPORATION 3000 LEWIS CLARK WAY SUITE 2 VANCOUVER WA 98601 TK2597 MERIX CORP 1521 POPLAR LANE FOREST GROVE OR 97116 TK2606 VISPRO PO BOX 6239 BEAVERTON OR 97007...

Page 166: ...56 SILICONIX INC 2201 LAURELWOOD RD SANTA CLARA CA 95054 1516 18796 MURATA ERIE NORTH AMERICAN INC STATE COLLEGE OPERATIONS 1900 W COLLEGE AVE STATE COLLEGE PA 16801 2723 19701 PHILIPS COMPONENTS DISC...

Page 167: ...WAY KIRKLAND WA 98034 55335 JKL COMPONENTS CORP 13343 PAXTON STREET PACOIMA CA 91331 55680 NICHICON AMERICA CORP 927 E STATE PKY SCHAUMBURG IL 60195 4526 56845 DALE ELECTRONICS INC 2300 RIVERSIDE BLV...

Page 168: ...8 6...

Page 169: ...8 7...

Page 170: ...23MAA A1C420 281 0909 00 CAP FXD CERAMIC MLC 0 022UF 20 50V 04222 SA105C223MAA A1C421 281 0776 00 CAP FXD CERAMIC MLC 120PF 5 100V 04222 SA102A121JAA A1C424 281 0909 00 CAP FXD CERAMIC MLC 0 022UF 20...

Page 171: ...M 1 0 2W 91637 CCF501G49900F A1R409 322 3030 00 RES FXD METAL FILM 20 OHM 1 0 2W 91637 CCF50G20R00F A1R410 322 3177 00 RES FXD METAL FILM 681 OHM 1 0 2W 91637 CCF50 2G681R0F A1R411 322 3083 00 RES FXD...

Page 172: ...8 10 A1W406 131 0566 00 BUS CONDUCTOR DUMMY RES 0 094 OD X 0 225L 24546 OMA0207 A1W429 196 3064 00 LEAD ELECTRICAL 26 AWG 4 0 L 1 N 80009 196306400...

Page 173: ...ANSISTOR SIG BIPOLAR NPN 40V 600MA 0JR04 2N4401 A2R1 313 1051 00 RES FXD FILM 5 1 OHM 5 0 2W 91637 CT3 5R100J A2R3 313 1051 00 RES FXD FILM 5 1 OHM 5 0 2W 91637 CT3 5R100J A2R4 311 2501 00 RES VAR TRM...

Page 174: ...1 281 0909 00 CAP FXD CERAMIC MLC 0 022UF 20 50V 04222 SA105C223MAA A3C203 285 1460 00 CAP FXD MTLZD 0 1UF 20 250V 5MM LEAD SPAC TK1913 MKS 2 0 1 250 2 A3C204 281 0909 00 CAP FXD CERAMIC MLC 0 022UF 2...

Page 175: ...RCVRY 400V 1A 200NS 14552 MB2501 A3CR304 152 0400 00 DIODE RECT FAST RCVRY 400V 1A 200NS 14552 MB2501 A3CR305 152 0141 02 DIODE SIG ULTRA FAST 40V 150MA 4NS 2PF 27014 FDH9427 A3CR306 152 0400 00 DIOD...

Page 176: ...A3Q303 151 0190 00 TRANSISTOR SIG BIPOLAR NPN 40V 200MA 04713 2N3904 A3Q304 151 0190 00 TRANSISTOR SIG BIPOLAR NPN 40V 200MA 04713 2N3904 A3Q307 151 0199 00 TRANSISTOR SIG BIPOLAR PNP 12V 80MA SWITCH...

Page 177: ...2 3085 00 RES FXD METAL FILM 75 OHM 1 0 2W 91637 CCF501G75R00F A3R149 313 1027 00 RES FXD FILM 2 7 OHM 5 0 2W 91637 CT3 2R700J A3R150 313 1027 00 RES FXD FILM 2 7 OHM 5 0 2W 91637 CT3 2R700J A3R151 32...

Page 178: ...7 CCF50 1 G33200F A3R244 313 1027 00 RES FXD FILM 2 7 OHM 5 0 2W 91637 CT3 2R700J A3R245 322 3243 00 RES FXD METAL FILM 3 32K OHM 1 0 2W 91637 CCF50 1 G33200F A3R246 313 1027 00 RES FXD FILM 2 7 OHM 5...

Page 179: ...K OHM 5 0 5W 19701 5053CX 390K0J A3R362 301 0434 00 RES FXD FILM 430K OHM 5 0 5W 19701 5053CX430K0J A3R363 301 0434 00 RES FXD FILM 430K OHM 5 0 5W 19701 5053CX430K0J A3R364 322 0481 00 RES FXD FILM 1...

Page 180: ...104KAT3A A4C409 283 5004 00 CAP FXD CERAMIC MLC 0 1UF 10 25V X7R 1206 04222 12063C104KAT3A A4C420 283 5004 00 CAP FXD CERAMIC MLC 0 1UF 10 25V X7R 1206 04222 12063C104KAT3A A4C421 283 5004 00 CAP FXD...

Page 181: ...K OHM 1 0 125W 50139 BCK1003FT A4R301 321 5047 00 RES FXD THICK FILM 100K OHM 1 0 125W 50139 BCK1003FT A4R302 321 5047 00 RES FXD THICK FILM 100K OHM 1 0 125W 50139 BCK1003FT A4R303 321 5047 00 RES FX...

Page 182: ...00 RES FXD THICK FILM 100K OHM 1 0 125W 50139 BCK1003FT A4R501 321 5018 00 RES FXD THICK FILM 1 0K OHM 1 0 125W 50139 BCK1001FT A4R503 321 5030 00 RES FXD THICK FILM 10 0K OHM 1 0 125W 50139 BCK1002F...

Page 183: ...15 283 5004 00 CAP FXD CERAMIC MLC 0 1UF 10 25V X7R 1206 04222 12063C104KAT3A A5C216 283 5004 00 CAP FXD CERAMIC MLC 0 1UF 10 25V X7R 1206 04222 12063C104KAT3A A5C217 283 5195 00 CAP FXD CERAMIC MLC 1...

Page 184: ...RES FXD THICK FILM 221 OHM 1 0 125W 50139 BCK221FT A5R220 321 5000 00 RES FXD THICK FILM 10 OHM 1 0 125W 91637 CRCW120610R0FT A5R221 321 5000 00 RES FXD THICK FILM 10 OHM 1 0 125W 91637 CRCW120610R0FT...

Page 185: ...6325 00 IC ASIC CMOS CUSTOM CHARACTER DSPLYGEN 80009 156632500 A5U218 156 5157 01 IC CONVERTER BIPOLAR D A 12 BIT 300NS MULTI 1CH66 AM6012DT D C88 A5U219 156 5157 01 IC CONVERTER BIPOLAR D A 12 BIT 30...

Page 186: ...8 24...

Page 187: ...V 62643 SXE100VB101M12X20LL A63C23 290 0973 01 CAP FXD ALUM 100UF 20 25VDC 62643 SME35VB101M8X11FT A63C24 290 0947 00 CAP FXD ELCTLT 33UF 50 10 160V 0H1N5 CEUSM2C330 Q A63C25 290 1115 00 CAP FXD ALUM...

Page 188: ...ERAMIC TK260 342 0582 00 A63L1 108 1319 00 INDUCTOR FXD POWER 33UH 10 TK205 TSL1110 330K1R8 A63L2 108 1319 00 INDUCTOR FXD POWER 33UH 10 TK205 TSL1110 330K1R8 A63L3 108 1319 00 INDUCTOR FXD POWER 33UH...

Page 189: ...239 00 RES FXD FILM 3 01K OHM 1 0 2W 57668 CRB20 FXE 3K01 A63R25 315 0390 00 RES FXD FILM 39 OHM 5 0 25W 50139 CB3905 A63R26 313 1330 00 RES FXD FILM 33 OHM 5 0 2W 57668 TR20JT6833E A63R27 313 1121 00...

Page 190: ...955 00 TRANSFORMER POWER INVERTER 75498 129 3154 00 A63T9 120 1347 00 TRANSFORMER SIG 44T 2T 2T PRI TK205 BDT 001 A63U1 156 1627 00 IC LINEAR BIPOLAR SW REG CONTR 01295 TL594CN A63U2 152 0806 00 MODUL...

Page 191: ...8 29...

Page 192: ...TICAL QTY 2 TAS455 ONLY 0J7N9 196 3374 00 P74 P74 196 3374 00 196 3374 01 LEAD ELECTRICAL DESCRETE SDI IDC 2 22 AWG VERTICAL QTY 2 TAS465 ONLY 0J7N9 0J7N9 196 3374 00 196 3374 01 P75 196 3375 00 LEAD...

Page 193: ...Drafting H ANSI Y14 159 1971 Interconnection Diagrams H ANSI Y32 16 1975 Reference Designations for Electronic Equipment H MIL HDBK 63038 1A Military Standard Technical Manual Writing Hand book Elect...

Page 194: ...9 2 Locator Grid Board Outline 1 Onboard Jumper Digital Ground 3 0 1 3 Power Termination 2 2 Heat Sink Diagram Number Diagram Name Assembly Number 0 3 0 0 3 3 2 0 0 3 4 1 1 3 3 1 4 3 1 1 1 1 3 1 3 1 1...

Page 195: ...3 1 1 0 0 1 2 1 1 0 0 1 2 2 10 10 0 10 1 0 0...

Page 196: ...te the component on the schematic diagram H Locate the page whose number corresponds with the schematic diagram number just found in the component location table H Scan the component location table fo...

Page 197: ......

Page 198: ...A1 2A Q403 A1 3 5C A1 3A Q404 A1 1 3A A1 1A Q405 A1 1 3B A1 1A Q406 A1 1 3A A1 1A Q407 A1 1 3B A1 1A Q408 A1 1 4B A1 1A R401 A1 1 2A A1 1A R402 A1 3 2B A1 3B R403 A1 3 2B A1 3B R404 A1 3 3B A1 3B R405...

Page 199: ...35 C436 U405 R425 C432 R419 C416 C411 J68 C430 R426 C410 C417 J403 K401 C424 R414 R408 R412 R411 R410 C419 R418 R417 R420 L406 R415 L404 L405 J402 J401 C429 R407 C431 J50 R421 C427 C437 L402 L403 L401...

Page 200: ......

Page 201: ...A R1 A2 1 2A A2 1A R2 A2 1 2A A2 1A R3 A2 1 3A A2 2A R4 A2 1 1C A2 2A R5 A2 1 1B A2 1A R6 A2 1 1C A2 2A R7 A2 1 4C A2 2A R8 A2 1 1D A2 1A R9 A2 1 1A A2 1A SCHEM NUMBER A2 Display Control Component Loc...

Page 202: ......

Page 203: ...J80 L109 R141 C121 R140 R244 C130 R212 C204 C203 R144 C119 R142 L113 L111 L112 C120 C111 J72 R321 R322 R323 R326 C320 R329 CR303 J73 CR306 C312 C316 C313 C321 C219 L300 J74 C211 C207 Q206 Q209 C205 Q...

Page 204: ...1 6C A4 1B R108 A4 1 4C A4 1B R109 A4 1 4B A4 1B R140 A4 1 3C A4 2B R201 A4 3 3A A4 1B R202 A4 3 4A A4 1B R203 A4 3 4A A4 2B R204 A4 3 4A A4 2B R205 A4 3 5A A4 2A R206 A4 3 5A A4 2A R207 A4 3 5A A4 2A...

Page 205: ...300 CR331 R201 R202 DS201 DS202 TP12 R505 R504 C131 R106 C141 C140 R140 C132 DS203 R203 DS204 R301 R204 R205 DS207 DS206 R206 R207 R302 C122 Y140 U101 J30 J84 J40 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 R306...

Page 206: ......

Page 207: ...0 1 27 44 1 21 30 5 21 14 117 84 51 18 Q2 Q1 R208 C218 R225 R224 C217 R221 R220 R216 R218 R217 R214 R215 R219 R210 R212 R213 R211 R207 U221 R201 R227 R228 J50 C201 C202 U208 U220 U207 C203 J204 U203 U...

Page 208: ...Q9 A2 3C3 Q60 A3 4B3 R1 A3 4D3 R10 A2 3C1 R11 A1 2C2 R12 A2 3C1 R13 A2 3B2 R14 A3 4D4 R15 A2 3B2 R16 B4 2B5 R17 A2 3C1 R18 A1 2C3 R19 A2 3B2 R2 A2 3C1 R20 A2 3B2 R21 A2 3B4 R22 A2 3A1 R23 A2 3B5 R24 A...

Page 209: ...90 C24 C37 C35 C22 L7 L3 L2 L1 C11 R43 C29 Q3 Q2 Q1 VR3 VR2 C28 CR25 CR15 E1 R31 CR22 CR21 CR16 T2 C2 C7 C14 C12 U1 Q8 Q7 Q4 Q9 Q6 Q10 VR60 VR1 R60 R39 R21 R37 R40 R30 R38 R34 R28 R4 R12 R2 R10 R42 R4...

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Page 257: ...10 1 0 0 0 0 0 H H 0 H H 0 0 0 0 0 0 1 0 0 1 1...

Page 258: ...10 2...

Page 259: ...Replaceable Mechanical Parts TAS 465 Service Manual 10 3 CROSS INDEX MFR CODE NUMBER TO MANUFACTURER Mfr Code Manufacturer Address City State Zip Code...

Page 260: ...Replaceable Mechanical Parts Replaceable Mechanical Parts 10 4 Fig Index No Tektronix Part No Serial No Effective Dscont Qty 12345 Name Description Mfr Code Mfr Part No...

Page 261: ...10 5...

Page 262: ...Replaceable Mechanical Parts Replaceable Mechanical Parts 10 6 Fig Index No Tektronix Part No Serial No Effective Dscont Qty 12345 Name Description Mfr Code Mfr Part No...

Page 263: ...10 7...

Page 264: ...Replaceable Mechanical Parts Replaceable Mechanical Parts 10 8 Fig Index No Tektronix Part No Serial No Effective Dscont Qty 12345 Name Description Mfr Code Mfr Part No...

Page 265: ...10 9...

Page 266: ...Replaceable Mechanical Parts Replaceable Mechanical Parts 10 10 Fig Index No Tektronix Part No Serial No Effective Dscont Qty 12345 Name Description Mfr Code Mfr Part No...

Page 267: ...Replaceable Mechanical Parts TAS 465 Service Manual 10 11 A2 A3 A5 A1 Figure 10 4 Circuit Boards...

Page 268: ...ical Parts Replaceable Mechanical Parts 10 12 Fig Index No Tektronix Part No Serial No Effective Dscont Qty 12345 Name Description Mfr Code Mfr Part No STANDARD ACCESSORIES OPTIONAL ACCESSORIES Figure...

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