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AWG2021 Service Manual

2-9

Operating Instructions

Before servicing the AWG2021, read the following operating instructions. These
instructions are at the level appropriate for servicing the AWG2021. The user
manual contains complete operator instructions.

In addition, section 4, Performance Verification, includes instructions for making
the front-panel settings required to check AWG2021 characteristics.

How to Power On

To power-on the AWG2021, follow these steps:

1. Set the PRINCIPAL POWER SWITCH (on the back of the AWG2021) to

the ON position. This switch is the main power switch; it routes power to the
standby circuit in the AWG2021.

2. Then, press the ON/STBY (standby) switch on the front (lower-left corner)

of the AWG2021. This switch applies power to the remaining circuits of the
AWG2021. Allow at least 20 minutes for the AWG2021 to warm up.

WARNING.

To avoid personal shock hazard, turn off both the ON/STBY switch

and the PRINCIPAL POWER SWITCH before servicing. The PRINCIPAL
POWER SWITCH on the rear panel is the true power disconnect switch. The
ON/STBY (standby) switch simply toggles operation on and off. When connected
to a power source and when the PRINCIPAL POWER SWITCH is on, the
internal power supplies and much of the other circuitry of the AWG2021 remain
energized regardless of the setting of the ON/STBY switch.

To avoid personal shock hazard, set the PRINCIPAL POWER SWITCH off before
connecting or disconnecting the line cord to or from the power source.

Internal Diagnostics and Calibration Routines

At power-on, the AWG2021 performs internal start-up diagnostics. These
diagnostics check internal circuit function and report any failures. In addition,
you can initiate internal diagnostics using the Diag/Cal item in the UTILITY
menu; these diagnostics differ from the start-up diagnostics in that they do more
extensive memory checking.

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Содержание Tektronix AWG2021

Страница 1: ...m Generator 070 9098 08 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 the Safety Summary prior to performing service ...

Страница 2: ...nts issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in Japan Sony Tektronix Corporation P O Box 5209 Tokyo Int l Tokyo 100 31 Japan Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc ...

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

Страница 4: ......

Страница 5: ...2 1 Power Cord Information 2 2 Operating Environment 2 4 Operating Temperature 2 4 Ventilation Requirements 2 4 Rear Panel Controls 2 4 Fuse Type and Rating 2 5 Applying and Interrupting Power 2 6 Power on Cycle 2 6 Power off Cycle 2 6 Memory Backup Power 2 7 Repackaging Instructions 2 7 Installed Options 2 8 Operating Instructions 2 9 How to Power On 2 9 Internal Diagnostics and Calibration Routi...

Страница 6: ...Voltage Power Supply A4 Power Board 3 3 Fan 3 3 Options 3 3 Performance Verification Performance Verification Procedures 4 1 Preparation 4 1 Conventions 4 1 Self Tests 4 3 Diagnostics 4 3 Calibration 4 5 Performance Tests 4 7 Prerequisites 4 7 Related Information 4 8 Equipment Required 4 8 Performance Check Adjustment Files 4 9 Operating Mode Checks 4 12 Arithmetic Operation Checks 4 25 Clock Freq...

Страница 7: ...2021 Orientation 6 11 Access Procedure 6 12 Procedures for External Modules 6 15 Front panel Knob 6 16 Line Fuse and Line Cord 6 17 Rear Cover and Cabinet 6 18 EMI Gaskets 6 20 Front Cover Trim Ring and Menu Buttons 6 20 Front panel Module 6 22 Procedures for Internal Modules 6 26 A4 Power Board A3 Analog Board and A23 Analog Board Option 02 6 27 Connector Module 6 30 Fan and Fan Frame 6 31 Rear S...

Страница 8: ...on 7 11 Data Output 7 11 Clock Output 7 11 Output Connector Configuration 7 12 Operation 7 12 Output Circuit and Output Waveform 7 13 Application Example 7 15 Waveform Regeneration 7 16 Option 09 Description 7 17 Option 1R Description 7 17 Option 1S Description 7 17 Option 95 Description 7 17 Accessories 7 18 Standard Accessories 7 18 Optional Accessories 7 18 Replaceable Electrical Parts Electric...

Страница 9: ...al Test Hookup 4 23 Figure 4 10 External AM Operation Initial Test Hookup 4 26 Figure 4 11 MODE Menu Autostep Setting 4 27 Figure 4 12 Clock Frequency Accuracy Initial Test Hookup 4 30 Figure 4 13 Clock Amplitude Initial Test Hookup 4 32 Figure 4 14 Gain Accuracy Initial Test Hookup 4 34 Figure 4 15 Pulse Response Initial Test Hookup 4 37 Figure 4 16 Initial Test Hookup 4 40 Figure 4 17 External T...

Страница 10: ...oval 6 29 Figure 6 14 Connector Module Removal 6 30 Figure 6 15 Fan and Fan Frame Removal 6 32 Figure 6 16 Rear Shield Cover Removal 6 33 Figure 6 17 Rear BNC Connector Removal 6 35 Figure 6 18 Power Supply Module Removal 6 36 Figure 6 19 AUX Power Board and AC Inlet Removal 6 38 Figure 6 20 Monitor Module Removal 6 40 Figure 6 21 CRT Frame Removal 6 41 Figure 6 22 Board Removal 6 45 Figure 6 23 A...

Страница 11: ...1 Option 04 Output Connector 7 12 Figure 7 12 Generation of Excess Output 7 13 Figure 7 13 Output Circuit 7 13 Figure 7 14 Output Waveform 7 14 Figure 7 15 Data Latching 7 14 Figure 7 16 Digital Data Out Cable 7 15 Figure 7 17 Example of Waveform Reproduction Circuit 7 16 Figure 9 1 Block Diagram of AWG2021 with Options 02 and 09 9 3 Figure 9 2 Block Diagram of AWG2021 with Options 02 and 03 9 4 F...

Страница 12: ...2 File List for Performance Check Adjustment Disk 4 10 Table 4 3 Clock Frequency Accuracy 4 31 Table 5 1 Test Equipment 5 2 Table 5 2 File List for Performance Check Adjustment Disk 5 4 Table 6 1 Relative Susceptibility to Static Discharge Damage 6 3 Table 6 2 External Inspection Check List 6 5 Table 6 3 Internal Inspection Check List 6 6 Table 6 4 Equipment Required 6 10 Table 6 5 Secondary Power...

Страница 13: ...properly grounded To avoid electric shock or fire hazard do not operate this product with covers or panels removed To avoid fire hazard use only the fuse type and rating specified for this product To avoid electric shock do not operate this product in wet or damp conditions To avoid injury or fire hazard do not operate this product in an explosive atmosphere Product Damage Precautions Do not opera...

Страница 14: ...ccessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product The following symbols may appear on the product DANGER High Voltage Protective Ground Earth Terminal ATTENTION Refer to Manual Double Insulated Certifications and Compliances CSA Certification includes the products and ...

Страница 15: ...e attempting any servicing discharge the CRT by shorting the anode to chassis ground When discharging the CRT connect the discharge path to ground and then the anode Rough handling may cause the CRT to implode Do not nick or scratch the glass or subject it to undue pressure when removing or installing it When handling the CRT wear safety goggles and heavy gloves for protection Dangerous voltages o...

Страница 16: ...Service Safety Summary xii AWG2021 Service Manual ...

Страница 17: ...ower on and service the AWG2021 H Theory of Operation contains circuit descriptions that support general service to the module level H Performance Verification contains a collection of procedures for confirming that the AWG2021 functions properly and meets warranted limits H Adjustment Procedures contains a collection of procedures for adjusting the AWG2021 to meet warranted limits H Maintenance c...

Страница 18: ...steps are numbered unless there is only one step Throughout this manual any replaceable component assembly or part of the AWG2021 is referred to generically as a module In general a module is an assembly like a circuit board rather than a component like a resistor or an integrated circuit Sometimes a single component is a module for example the chassis of the AWG2021 is a module Symbols and terms ...

Страница 19: ...roce dures should be done every 12 months In addition adjustment is recommended after module replacement Strategy for Servicing Throughout this manual the term module refers to any field replaceable component assembly or part of the AWG2021 This manual contains all the information needed for periodic maintenance of the AWG2021 Examples of such information are procedures for checking performance an...

Страница 20: ...it your requirements AtĆdepot Service Tektronix offers several standard priced adjustment calibra tion and repair services H A single repair and or adjustment H Calibrations using equipment and procedures that meet the traceability standards specific to the local area H Annual maintenance agreements that provide for either calibration and repair or calibration only of the AWG2021 Of these services...

Страница 21: ...Specifications ...

Страница 22: ......

Страница 23: ...other AWG2000 Series Arbitrary Waveform Generator H Continuous generation of arbitrary waveform data files you specify in a sequence file H Stepped arbitrary waveform generation of waveform data files and or sequence files you specify in an autostep file Autostep mode H Single or dual channel waveform output to 5 Vp p the second channel is Option 02 H Point clock rate from 10 Hz to 250 MHz H Conti...

Страница 24: ... Service Manual H Editing in frequency domain and convolution waveform editor capability Option 09 H Sample waveform library and sample GPIB programming examples on disk H Standard function waveforms H Internal diagnostic calibration ...

Страница 25: ...l performance limits together with the related validation procedure comprise a complete statement of the electrical and environmental performance of a calibrated instrument Electrical characteristic limits in the Description column are verified by completing the test listed in the Performance Test column Introduction The performance characteristics on the AWG2021 can be divided into three categori...

Страница 26: ...ated Same as triggered mode except periods are output for the duration of the gated signal Check Gated Mode page 4 18 Burst Output quiescent until triggered by an external GPIB or manual trigger then generates a waveform or sequence predefined count Check Burst Mode page 4 16 Waveform Advance Continuously generates the waveform in the predefined edited sequence and the next trigger advances the wa...

Страница 27: ... actual value is two times the displayed value 10 V The absolute peak Amplitude Offset 100 mA to 100 mA into 50 W current source output Resolution 5 mV Impedance 50 W Auxiliary Output SYNC When F G mode and the frequency is above 250 kHz the Sync pulse occurs one time per two waveforms Amplitude 1 2 V into 50 W 2 4 V into open circuit Impedance 50 W MARKER1 Amplitude 2 5 V 5 10 into 50 W 5 V 5 10 ...

Страница 28: ...ck CH2 Option 02 Data D0 to D11 Clock Amplitude 2 V into 50 W Impedance 50 W Connector 26 pin header Auxiliary Input TRIGGER Threshold Level 5 V to 5V Resolution 0 1V Impedance 1 MW with 30 pF max or 50 W ARM Range 2 VpĆp 1V to 1V for 100 modulation Impedance 10 kW CLOCK Impedance 50 W Function Generator Waveform Shape Sine Triangle Square Ramp Pulse Output Parameter All of these values with the e...

Страница 29: ...0 H 480 V pixels AC Power Source AC Line Power Fuse Rating 6A fast blow 250 V UL198G 3AG or 5 A T 250 V IEC127 Battery Type Li3 V 650 mAH Table 1 1 1 ȧPeriod Jitter CH1 Marker 1 Out Clock 250MS s Clock 100MS s StdDev Pk Pk StdDev Pk Pk 11 0 ps 60 0 ps 10 5 ps 50 0 ps Table 1 1 2 ȧCycle to Cycle Jitter CH1 Marker 1 Out Clock 250MS s Clock 100MS s StdDev Pk Pk StdDev Pk Pk 20 0 ps 110 0 ps 20 0 ps 9...

Страница 30: ... Service Manual Table 1 2 Mechanical Characteristics Characteristics Description Net Weight Standard 9 7 kg Size Height 6 4 inches with feet Width 14 3 inches with handle Length 19 25 inches with front cover 22 2 inches with handle extended ...

Страница 31: ...self calibration 4 The instrument is operating at an ambient temperature between 10_ C to 40_ C unless otherwise noted Table 1 3 Electrical Characteristics Characteristics Description Performance Test Clock Generator Accuracy Check Clock Frequency 15_ C to 30_ C 0 005 Accuracy page 4 30 10_ C to 40_ C 0 01 Skew between CH1 and CH2 When Option 02 second channel installed within 4 ns Filter Cutoff f...

Страница 32: ...l edges Aberration 7 of amplitude 10 mV 15_ C 30_ C Rise Fall Time 4 2 ns Flatness Within 5 After 20 ns from rise fall edges Aberration 9 of amplitude 10 mV Sine Wave Characteristics F G mode 100 kHz to 2 5 MHz No Offset Flatness Within 4 Amplitude 1 V 100 kHz reference T H D Including up to 4th Harmonics 1 V 50 dBc 0 5 V 66 dBc Spurious Excluding Clock frequency 1 V 66 dBc 0 5 V 66 dBc Auxiliary ...

Страница 33: ...y Within 15 ns CLOCK CLOCK OUT Amplitude C Amplitude 1 V 0 3 V into 50 W Check page 4 32 ECL DIGITAL DATA OUT Option 03 ECL DIGITAL DATA OUT Check page 4 47 Skew between Data Within 1 ns Clock to Data delay Within 2 ns TTL DIGITAL DATA OUT Option 04 TTL DIGITAL DATA OUT Check page 4 51 Amplitude 2 V into 50 W Output Data rate 100 MB s minimum Clock to Data delay See Figure 1 1 Within 4 ns Figure 1...

Страница 34: ...ms maximum Excluding Autostep mode AM Amplitude Accuracy Within 5 Maximum Input Volts 5 V CLOCK External CLOCK IN Check Threshold Level 0 5 V page 4 45 Input Swing 0 8 VpĆp minimum Pulse Width 2 ns minimum Maximum Input Volts 2 V Frequency Range 250 MHz maximum AM and Add AM Multiply When Option 02 second channel installed Check Internal AM Operation Output Within 5 CH2 Signal 5 V 100 0 V 0 5 V 10...

Страница 35: ...ETUP menu Output can not exceed 5 VpĆp page 4 29 Frequency Response DC to 30 MHz 3 dB AC Power Source Rating Voltage 100 VAC to 240 VAC Continuous range CAT II Range 90 VAC to 250 VAC 48 Hz to 63 Hz 90 VAC to 127 VAC 48 Hz to 440 Hz Maximum Power Consumption 300 W Maximum Current 4 A Grounding Impedance The impedance for the chassis ground and power plug ground pins is 0 1 W at 30 A Primary Circui...

Страница 36: ...Altitude Operating To 4 5 km 15000 ft Maximum operating temperature decreases 1_ C each 300 m above 1 5 km NonĆoperating To 15 km 50000 ft Dynamics Vibration Operating 0 33 mmpĆp 10 to 55 Hz 15 minutes Shock NonĆoperating 294 m s2 30 G halfĆsine 11 ms duration Installation Requirements Power Consumption Fully Loaded 300 watts max Maximum line current is 4 ARMS at 50 Hz 90 V line Surge Current 30 A...

Страница 37: ... pins with 50 W termination Same Channel 2 ns Between CH1 and CH2 4 ns when Option 02 installed Power Supply Battery Back up Time 4 years Table 1 6 Certifications and compliances Category Standards or description EC Declaration of Conformity EMC Meets intent of Directive 89 336 EEC for Electromagnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Offici...

Страница 38: ...products in this category CAT III DistributionĆlevel mains usually permanently connected Equipment at this level is typically in a fixed industrial location CAT II LocalĆlevel mains wall sockets Equipment at this level includes appliances portable tools and similar products Equipment is usually cordĆconnected CAT I Secondary signal level or battery operated circuits of electronic equipment Polluti...

Страница 39: ...Operating Information ...

Страница 40: ......

Страница 41: ...ource and has a three wire power cord with a two pole three terminal grounding plug Also before making connection to the power source be sure the AWG2021 has a suitable two pole three terminal grounding type plug To avoid personal shock hazard do not contact conductive parts All accessible conductive parts are directly connected through the grounding conductor of the power cord to the grounded ear...

Страница 42: ...dered by the customer Table 2 1 gives the color coding of the conductors in the power cord Table 2 2 shows information on the available power cords Table 2 1 PowerĆCord Conductor Identification Conductor Color Alternate Color Ungrounded Line Brown Black Grounded Neutral Light Blue White Grounded Earthing Green Yellow Green ...

Страница 43: ...ation Plug Configuration Normal Usage Option Number North America 125 V Standard Europe 230 V A1 United Kingdom 230 V A2 Australia 230 V A3 North America 230 V A4 Switzerland 230 V A5 North American 115V 15A Plug NEMA 5Ć20P 1A North American 120 208V 3ĆPhase Plug NEMA L21Ć30P 1B ...

Страница 44: ...ircuits To ensure proper cooling allow the following clearances Top and back 7 5 cm 3 in Left and right 15 cm 6 in The feet on the bottom of the AWG2021 cabinet provide the required clearance when it is set on a flat surface The top of the AWG2021 does not require ventilation clearance CAUTION To prevent temporary shutdown of the AWG2021 do not restrict air flow through the chassis If the AWG2021 ...

Страница 45: ...use Type and Rating Power Cord Option Fuse Fuse Part Number Fuse Cap Part Number Standard A3 A4 A5 0 25 inch 1 25 inch UL 198G 3AG 6A FAST 250V 159Ć0239Ć00 200Ć2264Ć00 A1 A2 5 mm 20 mm IEC 127 5A T 250V 159Ć0210Ć00 200Ć2265Ć00 WARNING To avoid electrical shock always unplug the power cord from the socket before checking the line fuse To check the fuse remove the fuse holder on the rear panel Refer...

Страница 46: ...u See section 6 Maintenance for information on diagnostics and fault isolation NOTE If the ambient temperature goes outside the specified operating tempera ture range an error occurs during the diagnostics at power on If this happens power off the AWG2021 and wait until the chassis temperature is appropriate then switch the power on again CAUTION To prevent loss of internally stored adjustment con...

Страница 47: ...ose of used batteries promptly Small quantities of used batteries can be disposed of in normal refuse Keep lithium batteries away from children Repackaging Instructions Use a corrugated cardboard shipping carton having a test strength of at least 275 pounds and with an inside dimension at least six inches greater than the AWG2021 dimensions If available use the original shipping carton which meets...

Страница 48: ... look at the display during the power on sequence The AWG2021 lists the installed options after Options near the top of the display Table 2 2 on page 2 3 gives information about line cord options Section 7 Options lists other options and optional accessories For further information and prices of options see your Tektronix Products catalog or contact a Tektronix Field Office ...

Страница 49: ...G2021 to warm up WARNING To avoid personal shock hazard turn off both the ON STBY switch and the PRINCIPAL POWER SWITCH before servicing The PRINCIPAL POWER SWITCH on the rear panel is the true power disconnect switch The ON STBY standby switch simply toggles operation on and off When connected to a power source and when the PRINCIPAL POWER SWITCH is on the internal power supplies and much of the ...

Страница 50: ...ons in the center of the front panel select the main menus When you select a menu the display shows the items controlled by that menu and numeric values currently in effect Buttons around the display select lower level menus change menu selections modify numeric values and units and execute functions Display Figure 2 2 contains two examples of AWG2021 displays To see the first display on the AWG20...

Страница 51: ...erating Instructions AWG2021 Service Manual 2 11 Status Area Error Display Area Button Operation Message Area Bottom Menu Knob Icon Side Menu Side Menu Label Date Time Display Figure 2 2 Display Features ...

Страница 52: ...which menu is currently selected Refer to the User Manual for more details concerning these menus The F G button under the MENU column selects function generator operation H SETUP Menu The SETUP menu sets the following waveform output parameters for each channel clock source and frequency waveform or sequence file selection operation filter amplitude and offset H MODE Menu This menu sets the opera...

Страница 53: ...n this kind of file can be created using the waveform editor generated from equations made using the equation editor transferred in over an interface or directly transferred in from certain Tektronix instruments In addition the waveform editor displays the data in a waveform data file in three formats graphical table and timing H Waveform equation file filename EQU The waveform equation file conta...

Страница 54: ...DOS format Loading Files The following steps explain how to load files from a floppy disk into internal memory 1 Push the LOAD SAVE button in the MENU column 2 Turn the disk so the side with the arrow is on top insert the disk into the AWG2021 floppy disk drive 3 Push the Device button along the bottom menu to select Disk The menu in Figure 2 3 appears 4 Select the Load All button along the side m...

Страница 55: ... the active file When you select a file the AWG2021 changes to the output parameters associated with the file and displays these parameters on the SETUP menu If you modify the displayed output parameters and later save the file the modified output parameters are saved with the file If the file is locked you cannot modify the file contents The following steps go through the process of selecting a f...

Страница 56: ...e file you selected 4 After the file is selected push the front panel VALUE button Now you can modify output waveform parameters 5 Set the individual parameters as follows a Push the SETUP button in the MENU column if the button is not selected b Now select the appropriate item from the bottom menu then use the numeric keys or general purpose knob to modify the parameter setting The following expl...

Страница 57: ...ose a 50 20 5 or 1 MHz filter or you can select Through no filter H Ampl This selection sets the voltage value for the 12 bit full scale output amplitude on the vertical scale The amplitude can be set in steps of 1 mV within the range from 0 05 V to 5 V H Offset This item sets the offset level of the output waveform The offset can be set in steps of 5 mV within the range 2 5 V The MODE menu initia...

Страница 58: ...trigger applied in burst mode the AWG2021 outputs the number of waveforms or sequences set by the burst count When completed the waveform output stops H Waveform Advance Mode In Waveform Advance mode the AWG2021 ignores the waveform repetition counts set up for each waveform file in the sequence file and continuously outputs the waveform until the next trigger event When the AWG2021 receives a tri...

Страница 59: ...e menu for selecting the trigger gate conditions for the external trigger gate source The following describes each of these items H Slope This item sets the slope for external trigger signals To select a positive or negative slope push the side menu Slope button For a positive slope the AWG2021 applies the trigger at the rising edge of the external trigger signal for a negative slope the trigger i...

Страница 60: ...Operating Instructions 2 20 AWG2021 Service Manual ...

Страница 61: ...Theory of Operation ...

Страница 62: ......

Страница 63: ...ble from 250 MHz to 10 Hz for reading data from CH1 waveform memory The point rate clock is also divided and used for reading data from Option 02 CH2 waveform memory When an external clock source is selected the external clock signal is passed directly through to the Control board and used for reading waveform data in memory With Option 02 installed the CH2 clock divider divides the external clock...

Страница 64: ... s This functional block is the General Purpose Interface Bus GPIB interface driver which controls communication with external devices over the parallel interface The GPIB connector is on the rear panel This functional block is the RS 232 C interface circuit which controls serial communication with external devices over the RS 232 C interface The RS 232 C interface connector is on the rear panel T...

Страница 65: ...ontrol board Memory board and an Analog board for Channel 2 H Option 03 ECL Digital Data Out This option directly outputs the ECL level digital data in the waveform memory without passing it through the digital to analog converter This option cannot be installed with Option 04 or Option 09 H Option 04 TTL Digital Data Out This option directly outputs the TTL level digital data in the waveform memo...

Страница 66: ...Theory of Operation 3 4 AWG2021 Service Manual ...

Страница 67: ...Performance Verification ...

Страница 68: ......

Страница 69: ...ng Use them to quickly determine if the AWG2021 is suitable for putting into service such as when it is first received H For a more extensive confirmation of performance do the Performance Tests beginning on page 4 7 after doing the Self Tests Advantages These procedures involve direct checking of warranted specifications They require more time and suitable test equipment See Equipment Required on...

Страница 70: ...H First Subpart H Second Subpart b Second Substep 2 Second Step H Instructions for menu selection follow this format FRONT PANEL BUTTON Main Menu Button Side Menu Button For example Press UTILITY Misc Config Reset to Factory O K H Where instructed to use a front panel button key or knob or select from the MENU column or from a bottom or side menu the name of the item appears in boldface type push ...

Страница 71: ... can also run the internal diagnostics using the menu selections described in this procedure The difference between these two methods of initiating the diagnos tics is that the menu method does more detailed memory checking than the power on method Equipment Required None Prerequisites Power on the AWG2021 and allow a 20Ćminute warmup period before doing this procedure 1 Verify that internal diagn...

Страница 72: ...resses the screen displays the busy icon When finished the resulting status appears on the screen d Confirm that no failures are found Verify that no failures are found and reported on screen If the diagnostics displays Fail as the result of any test use the instructions in section 6 Troubleshooting to identify the faulty module If the diagnostics display an error code contact your nearest represe...

Страница 73: ...stments a Display the calibrations menu and select all tests Push UTILITY Diag Cal Calibrations xxxx All See the menu in Figure 4 2 Figure 4 2 Calibrations Menu b Run the calibrations routine Select Execute from the side menu This executes the AWG2021 calibrations routine automatically c Wait The internal calibration does an exhaustive verification of proper AWG2021 function While it progresses th...

Страница 74: ...G2021 Service Manual 2 Return to regular service Push any button other than UTILITY in the MENU column to exit the diagnostic menu NOTE The interactive tests on the Diag Cal menu are for manufacturing use at the factory ...

Страница 75: ...03 H TTL Digital Data Out Check Option 04 These procedures extend the confidence level provided by the internal diagnostic and calibration routines described on page 4 3 Prerequisites The tests in this subsection comprise an extensive valid confirmation of performance and functionality when the following requirements are met H You must have performed and passed the calibration procedure described ...

Страница 76: ...onix Part 015Ć0554ĆXX Signal interconnection BNC dual input TEE adapter Connectors BNC Tektronix Part 103Ć0030ĆXX Signal interconnection BNC cable 4 required Impedance 50ĂW Connectors BNC Length 43 inches Tektronix Part 012Ć0057ĆXX Signal interconnection Termination board Option 03 Must use example equipment Tektronix Part 671Ć2957ĆXX Used to check ECL digital data output ECL Digital Data Out Cabl...

Страница 77: ...ule Mainframe Performance Check Adjustment Files Table 4 2 lists the waveform files on the Performance Check Adjustment disk 063 2171 XX that are used in these performance test It describes the AWG2021 front panel settings that each file sets up and the performance test that uses each file NOTE The files on the Performance Check Adjustment disk are locked the files names are displayed with so the ...

Страница 78: ...tep 2 ASTĆ2 WFM ÎÎÎ ÎÎÎ ÎÎÎ 200 150 kHz Normal Through 1 5 V 0 V Step 3 ASTĆ3 WFM ÎÎÎ ÎÎÎ ÎÎÎ 200 25 kHz Normal Through 0 5 V 0 V 4 OPE AST Step 1 EXT_AM WFM CH1 1000 1 MHz External AM Through 5 V 0 V External AM Operation Step 2 AMĆ1 WFM CH1 1000 1 MHz AM Through 5 V 0 V Internal AM Operation AMĆ2 WFM CH2 1000 1 MHz ĊĊ Through 5 V 2 5 V Step 3 AMĆ1 WFM CH1 1000 1 MHz AM Through 5 V 0 V AMĆ3 WFM C...

Страница 79: ...00 1 MHz Normal Through 2 5 V 0 V Step 5 OFFSETĆ1 WFM 1000 1 MHz Normal Through 0 05 V 1 25 V Offset Accuracy Step 6 OFFSETĆ2 WFM 1000 1 MHz Normal Through 0 05 V 1 25 V Step 7 OFFSETĆ3 WFM 1000 1 MHz Normal Through 0 05 V 1 25 V 8 PULSE WFM 64 250 MHz ĊĊ Through 0 5 V 0 V Pulse Response 9 SYNC_MKR WFM 200 1 MHz ĊĊ Through 1 V 0 V SYNC Out and MARKER OUT Amplitude 10 TRG_IN WFM ÎÎÎ ÎÎÎ 1000 100 MH...

Страница 80: ...equisites listed on page 4 7 1 Install the test hookup and set test equipment controls a Hook up the oscilloscope Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 4 3 Oscilloscope AWG2021 AWG2021 540 TDS Figure 4 3 Cont Mode Initial Test Hookup b Set the oscilloscope controls Vertical CH1 CH1 coupling DC CH1 scale...

Страница 81: ... WFM file H Push ENTER to select the file This button is located to the lower right of the numeric keypad 3 Turn on the AWG2021 CH1 output Push the CH1 button so that the LED above the CH1 output connector is on 4 Check cont mode Check that the amplitude of the sine wave displayed on the oscilloscope is 5 vertical divisions and that 5 cycles of the waveform are displayed 5 If Option 02 is installe...

Страница 82: ...ope Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope b Hook up the function generator H Connect the AWG2021 TRIGGER INPUT connector though a coaxial cable to the function generator output connector see Figure 4 4 Oscilloscope AWG2021 540 TDS AWG2021 Function Generator FG 5010 Figure 4 4 Triggered Mode Initial Test Hookup c S...

Страница 83: ...side menu and turn the general purpose knob to select a 1 V trigger level H Select Impedance from the side menu to select 50 W impedance c Select the file H Push SETUP Waveform Sequence if necessary to select a waveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Highlight the MODE WFM file using the general purpose knob H Push ENTER to se...

Страница 84: ...st on pageĂ1 4 Equipment Required One 50ĂW coaxial cable One oscilloscope Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up the oscilloscope Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 4 5 Oscilloscope AWG2021 AWG2021 540 TDS F...

Страница 85: ...equence if necessary to select a waveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Turn the general purpose knob to highlight the MODE WFM file H Push ENTER to select the file 3 Turn on the AWG2021 CH1 output Push the CH1 button so that the LED above the CH1 output connector is on 4 Check burst count Push the AWG2021 MANUAL TRIGGER butt...

Страница 86: ...1 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope b Hook up the function generator Connect the function generator output to both the AWG2021 TRIGGER INPUT and the oscilloscope CH2 input through a coaxial cable precision termination and a dual input coupler see Figure 4 6 Function Generator FG 5010 Oscilloscope AWG2021 540 TDS AWG2021 Figure 4 ...

Страница 87: ...Polarity to highlight Positive H Select Impedance from the side menu to highlight 1 MW c Select the file H Push SETUP Waveform Sequence if necessary to select a waveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Highlight the MODE WFM file using the general purpose knob H Push ENTER to select the file 3 Turn on the AWG2021 CH1 output Pus...

Страница 88: ...ee Figure 4 7 Gate Signal Waveform Output CH2 CH1 Figure 4 7 Relationship Between 1 Volt or Greater Gate Signal and Waveform Output Signal c Change the AWG2021 trigger polarity to negative Push MODE Po larity to change the polarity to Negative d Check gated mode with a negative gate signal Check that the oscillo scope displays a sine wave while the function generator gate signal amplitude is low 6...

Страница 89: ...H1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 4 8 Oscilloscope AWG2021 AWG2021 540 TDS Figure 4 8 Waveform Advance Mode Initial Test Hookup b Set oscilloscope controls Vertical CH1 CH1 coupling DC CH1 0 2 V div CH1 input impedance 50 W Horizontal Sweep 5 ms div Trigger Source CH1 Coupling DC Slope Positive Level 0 V Mode Auto 2 Set...

Страница 90: ...aveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Highlight the MODE_ADV SEQ file using the general purpose knob H Push ENTER to select the file 3 Turn on the AWG2021 CH1 output Push the CH1 button so that the LED above the CH1 output connector is on 4 Check waveform advance Repeatedly push the AWG2021 MANUAL TRIGGER button and check tha...

Страница 91: ...ope H Connect the AWG2021 CH1 output through a coaxial cable to the oscilloscope CH1 vertical input H Connect the AWG2021 CH1 SYNC Out output through a coaxial cable to the oscilloscope CH2 vertical input see Figure 4 9 Oscilloscope AWG2021 540 TDS AWG2021 Figure 4 9 Autostep Mode Initial Test Hookup b Set the oscilloscope controls Vertical CH1 CH1 coupling DC CH1 scale 0 5 V div CH1 input impedan...

Страница 92: ...tep File from the side menu to choose from the file list for CH1 H Turn the general purpose knob to highlight the MODE_AST AST file H Push ENTER H Select Start within the Sync frame at the bottom menu 3 Turn on the AWG2021 CH1 output If the LED above the CH1 output connector is not on push the CH1 button 4 Check autostep mode Push the AWG2021 MANUAL TRIGGER button and check that the oscilloscope m...

Страница 93: ...quired Two 50ĂW coaxial cables One 50 W terminator One function generator One digital multimeter DMM Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up DMM Connect the AWG2021 CH1 output through a coaxial cable the 50 W terminator and BNC to dual banana connector to the DMM INPUT connector b Hook up function generato...

Страница 94: ...ile H Select Select Autostep File from the side menu to choose a waveform file for CH1 H Turn the general purpose knob to highlight the OPE AST file H Push ENTER 3 Turn on the AWG2021 CH1 output If the LED above the CH1 output connector is not on push the CH1 button 4 Enable the function generator output Turn on the function generator output 5 Check external AM operation H Check that the step numb...

Страница 95: ...V 100 modulation H Set the function generator offset value to 0 V Check that the DMM reading is in the range from 1 125 to 1 375 V 50 modulation H Set the function generator offset value to 1 V Check that the DMM voltage reading is in the range from 0 125 to 0 125 V 0 modulation 6 End procedure Keep the test connections and instrument settings for the next check ...

Страница 96: ...and control settings from the previous check 2 Check internal AM operation a Check Autostep Step 2 H Push the AWG2021 MANUAL TRIGGER button and check that the step changes to Step 2 on the MODE menu H Check that the DMM reading is in the range from 2 375 VDC to 2 625 VDC b Check Autostep Step 3 H Push the AWG2021 MANUAL TRIGGER button and check that the Autostep changes to Step 3 on the MODE menu ...

Страница 97: ...be installed in the AWG2021 1 Use the test hookup and control settings from the previous check 2 Check internal Add operation a Check Autostep Step 4 H Push the AWG2021 MANUAL TRIGGER button and check that the step changes to Step 4 on the MODE menu H Check that the DMM reading is in the range from 2 85 V to 3 15 V 3 End procedure a Disable function generator output Turn off the function generator...

Страница 98: ...r Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up frequency counter Connect the AWG2021 rear panel CLOCK OUT connector to the frequency counter input through a coaxial cable and an SMA BNC adapter see Figure 4 12 AWG2021 AWG2021 Frequency Counter DC 5010 Figure 4 12 Clock Frequency Accuracy Initial Test Hookup b S...

Страница 99: ...875 MHz and 250 0125 MHz b Check clock frequency accuracy for different clock frequency settings H Select Clock Divider from the bottom of the SETUP menu or select Clock if the instrument is not equipped with Option 02 H Turn the general purpose knob or press the numeric and units keys and push ENTER to select the first clock frequency listed in Table 4 3 H Check that the frequency counter reading...

Страница 100: ...n page 4 7 1 Install test hookup and set test equipment controls a Hook up oscilloscope Connect the AWG2021 rear panel CLOCK OUT connector through a coaxial cable and SMA BNC adapter to the oscilloscope CH1 vertical input see Figure 4 13 Oscilloscope 540 TDS AWG2021 AWG2021 Figure 4 13 Clock Amplitude Initial Test Hookup b Set oscilloscope controls Vertical CH1 Coupling DC Scale 500 mV div Input i...

Страница 101: ...y O K b Select the waveform file H Push SETUP Waveform Sequence if necessary to select a waveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Turn the general purpose knob to select the CLK_AMPL WFM file H Push ENTER 3 Check clock amplitude accuracy Check that the pulse displayed on the oscilloscope has an amplitude of 0 7 Vp p to 1 3 Vp p...

Страница 102: ...cked Main Output Amplitude Accuracy on pageĂ1 9 Equipment Required A 50ĂW coaxial cable A 50ĂW termination One BNCĆtoĆdual banana adapter One digital multimeter DMM Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set controls a Hook up DMM Connect the AWG2021 CH1 output through a 50 W coaxial cable a 50 W termination and a dual banana connector to the...

Страница 103: ...p 1 H Note the DMM reading as A for this value H Push the AWG2021 MANUAL TRIGGER button and check that the displayed step is Step 2 H Note the DMM reading as B for this value H Do the following calculation A B H Check that the calculated value is in the range from 0 4925 V to 0 5075 V H Push the AWG2021 MANUAL TRIGGER button and check that the displayed step is Step 3 H Note the DMM reading as C f...

Страница 104: ...ER button and check that the displayed step is Step 5 H Check that the DMM voltage reading is in the range from 2 470 V to 2 530 V H Push the AWG2021 MANUAL TRIGGER button and check that the displayed step is Step 6 H Check that the DMM voltage reading is in the range from 0 005 V to 0 005 V H Push the AWG2021 MANUAL TRIGGER button and check that the displayed step is Step 7 H Check that the DMM v...

Страница 105: ...e AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up the oscilloscope Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 4 15 Oscilloscope AWG2021 AWG2021 540 TDS Figure 4 15 Pulse Response Initial Test Hookup b Set oscilloscope controls Vertical CH1 Co...

Страница 106: ...tor is on 4 Check pulse response at 0 5 V amplitude a Check rise time Check that the rise time of the waveform displayed on the oscilloscope from the 10 point to the 90 point is 4 2 ns or less b Check aberrations Check that the aberrations of the displayed waveform is within 0 45 div c Check flatness Check that the flatness of the displayed waveform is within 0 15 div after 20 ns from the rising e...

Страница 107: ...V c Repeat substeps 4a through e checking to the following limits Rise time 4 2 ns maximum Aberrations 0 4 div maximum Flatness 0 15 div maximum Fall time 4 2 ns maximum 6 Check pulse response for CH2 Option 02 If the AWG2021 has a second channel repeat this Pulse Response Check procedure Use the AWG2021 CH2 output and select the waveform and setting controls for CH2 7 End procedure Remove the con...

Страница 108: ...AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up the oscilloscope Connect the AWG2021 CH1 SYNC Out connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 4 16 Oscilloscope AWG2021 540 TDS AWG2021 Figure 4 16 Initial Test Hookup b Set oscilloscope controls Vertical CH1 CH1 Coupling DC C...

Страница 109: ...al cable from the AWG2021 CH1 SYNC Out connector to the CH1 MARKER 1 connector H Change the oscilloscope sweep to 5 ms div H Check that the pulse amplitude of the displayed waveform is from 2 250 Vp p to 2 625 Vp p 4 Check rear panel CH1 MARKER 2 OUT pulse amplitude a Remove the coaxial cable from the AWG2021 front panel CH1 MARKER 1 connector and connect it through the SMA BNC adapter to the rear...

Страница 110: ...uisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up oscilloscope Connect the AWG2021 CH1 output through a coaxial cable to the oscilloscope CH1 vertical input b Hook up function generator Connect the AWG2021 TRIGGER INPUT through a coaxial cable to the function generator output see Fig ure 4 17 Oscilloscope AWG2021 540 TDS AWG2021 Function Generator FG 5010 F...

Страница 111: ...ngs H Push MODE Gated Polarity to highlight Positive H Select Level from the side menu and turn the general purpose knob to select 1 V You can also use the numeric and units keys to select 1 V then push ENTER H Select Impedance from the side menu to highlight 1 MW c Select waveform file H Push SETUP Waveform Sequence if necessary to select a waveform file for CH1 Waveform Sequence toggles between ...

Страница 112: ...r offset level is from 0 85 to 1 15 V when the waveform is first displayed 5 Check external trigger low level a Change the function generator controls Parameter Offset 0 6 V b Change the AWG2021 controls H Push MODE Polarity to highlight Negative H Select Level from the side menu and turn the general purpose knob to select 1 V You can also use the numeric and units keys to select 1 V then push ENT...

Страница 113: ...Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 1 Install test hookup and set test equipment controls a Hook up oscilloscope Connect the AWG2021 CH1 output through a coaxial cable to the oscilloscope CH1 vertical input b Hook up function generator Connect the AWG2021 rear panel CLOCK IN through a coaxial cable and SMA BNC adapter to the function generator output see Figure 4 1...

Страница 114: ... necessary to select a waveform file for CH1 Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Turn the general purpose knob to highlight the EXT_CLK WFM file H Push ENTER 3 Turn on the AWG2021 CH1 output Push the CH1 button so that the LED above the CH1 output connector is on 4 Check the external CLOCK IN threshold level a Enable function generator output T...

Страница 115: ...sites The AWG2021 meets the prerequisites listed on page 4 7 Option 03 ECL digital data output must be installed in the AWG2021 1 Install test hookup and set test equipment controls a Hook up termination board Connect the AWG2021 rear ECL digital data output through a digital data output cable to the termination board see Figure 4 19 b Hook up power supply Connect the power supply output through t...

Страница 116: ...l Test Hookup d Set oscilloscope controls Vertical CH1 Scale 0 1 V div Input Impedance 1 MW Horizontal Sweep Adjust as needed Trigger Mode Auto e Set power supply controls Parameter Supply select Negative Voltage 2 2 Create the AWG2021 waveform file select waveform file and set AWG2021 controls a Initialize AWG2021 controls Push UTILITY Misc Config Re set to Factory O K ...

Страница 117: ...he AWG2021 CH1 output Push the CH1 button so that the LED above the CH1 output connector is on 4 Check the digital data output signals a Enable power supply output Turn on power supply output b Check the signal levels Contact the oscilloscope probe to the pins on J200 and J210 see Figure 4 20 Check that the oscilloscope display shows the following signals H Data signals D0 D11 D0 D11 are different...

Страница 118: ...GND TP210 D7 D8 D9 D10 D11 GND TP200 CLK CLK J210 2VD TP120 D3 D0 D1 D2 D4 D5 D6 Figure 4 20 Output Pins on the Termination Board 5 Turn off equipment output and disconnect test hookup a Disable power supply output Turn off power supply output b Remove connections Disconnect all connections to the AWG2021 ...

Страница 119: ...uired One TTL Digital data out cable One 2 13 header One probe One oscilloscope Prerequisites The AWG2021 meets the prerequisites listed on page 4 7 Option 04 TTL digital data output must be installed in the AWG2021 1 Install test hookup and set test equipment controls a Hook up termination board Connect a digital data output cable to the AWG2021 rear pane CH1 DIGITAL DATA OUT output see Fig ure 4...

Страница 120: ... b Select waveform file H Push SETUP Waveform Sequence if necessary to select a waveform file for CH1 If Option 02 is installed Option 02 adds the CH2 output channel Waveform Sequence toggles between the CH1 files upper list and the CH2 files lower list H Turn the general purpose knob to highlight the DIGI_OUT WFM file H Push ENTER to select the file c Set AWG2021 controls H Push MODE Cont 3 Check...

Страница 121: ...put signals a Change connection Change the connection for the TTL digital data out cable from CH1 DIGITAL DATA OUT connector to CH2 DIGITAL DATA OUT connector b Repeat steps 2 and 3 to check the CH2 digital data output signals 5 Turn off equipment output and disconnect test hookup a Disable power supply output Turn off power supply output b Remove connections Disconnect all connections to the AWG2...

Страница 122: ...AWG2021 meets the prerequisites listed on page 4 7 Option 09 floating point processor must be installed in the AWG2021 1 Run the AWG2021 internal diagnostics to check that floating point processor test passes Push the AWG2021 ON STBY switch two times so that the AWG2021 runs the power on diagnostics 2 Check the FPP test results When the AWG2021 finishes the FPP test check that the test result is P...

Страница 123: ...Adjustment Procedures ...

Страница 124: ......

Страница 125: ...ilure do the adjustment procedures in this section Requirements for Performance Before doing the adjustments note the following requirements H Personnel Only trained service technicians should perform these procedures H Access to Adjustments The cabinet must be removed and additional ventilation must be provided when making the adjustments in this procedure See Adjustment Instructions in this subs...

Страница 126: ...o check output signals Digital multimeter DC volts range 0 05ĂV to 5ĂV Accuracy 0 1 Fluke 8842A Digital Multimeter Used to measure voltage Fan Used to cool the AWG2021 The PELTOLA cable with BNC connector is included in the maintenance kit Tektronix Part 067Ć1396Ć01 Before Adjustments The following instructions describe preparing the AWG2021 for adjustment loading the adjustment file required for ...

Страница 127: ... additional cooling as described below With the rear cover and cabinet removed the AWG2021 assembly does not cool properly while power is applied A separate fan is needed to prevent heat build up Place the fan so it blows air INTO the AWG2021 side near the floppy disk drive as shown in Figure 5 1 Figure 5 1 Cooling the AWG2021 During Adjustment Procedures Cooling ...

Страница 128: ...1000 100 MHz Normal Through 0 5 V 0 V All NOTE The files on the Performance Check Adjustment disk are locked the files names are displayed with so the data in these files cannot be changed unless the lock is opened The file data includes not only waveform data but also output parameters When you select a file with the Waveform Sequence item the AWG2021 output parameters change to those specified i...

Страница 129: ...age 5 1 1 Install the test hookup and set test equipment controls a Hook up the oscilloscope Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope see Figure 5 2 Oscilloscope AWG2021 AWG2021 540 TDS Figure 5 2 Hookup for X5 Amplifier HF Compensation b Set oscilloscope controls Vertical CH1 CH1 coupling DC CH1 scale 0 1 V div CH1 ...

Страница 130: ...CH1 compensation a Adjust oscilloscope display Adjust the horizontal and vertical position to center the waveform on the display b Change AWG2021 amplitude H Push the SETUP Ampl H Press the numeric decimal point key the numeric 5 0 1 keys and units V key to select 0 501 V c Adjustment Adjust C201 on the Analog board A3 for best flatness at 0 500 V See Figure 5 3 for adjustment location 5 If Option...

Страница 131: ...the test hookup and set test equipment controls a Hook up the AWG2021 Connect the AWG2021 CH1 output connector through the coaxial cable to the AWG2021 TRIGGER INPUT b Hook up the oscilloscope H Disconnect the J310 cable from the A4 Power board See Fig ure 5 4 H Connect the PELTOLA cable with BNC connector to J301 Figure 5 5 shows the cable and BNC details H Connect the other end of the PELTOLA ca...

Страница 132: ... Hookup for Attenuator LF Compensation BNC Connector PELTOLA Cable Figure 5 5 PELTOLA Cable with BNC c Set oscilloscope controls Vertical CH1 CH1 coupling DC CH1 scale 50 mV div CH1 input impedance 50 W Horizontal Sweep 2 ms div Trigger Source CH1 Coupling DC Slope Positive Level 0 V Mode Auto ...

Страница 133: ...ce toggles between the CH1 files upper list and the CH2 files lower list H Turn the general purpose knob to highlight the HF_LF WFM file H Push ENTER 3 Enable AWG2021 output Push the CH1 output ON OFF button 4 Adjust compensation a Adjust oscilloscope display Adjust the horizontal and vertical position to display the rising edge of the waveform b Adjustment Adjust C301 on the Power board A4 so the...

Страница 134: ... 1 Initialize AWG2021 controls Push UTILITY Misc Config Reset to Factory O K 2 Equipment power down H Turn off oscilloscope power H Push the OFF STBY button on the AWG2021 to toggle off operating power H Push the PRINCIPAL POWER switch on the back of the AWG2021 to turn off main power H Unplug the AWG2021 power cord from the line source 3 Eject floppy disk Remove the Performance Check Adjustment d...

Страница 135: ...Maintenance ...

Страница 136: ......

Страница 137: ...dules and replacing new or repaired modules See page 6 9 H Troubleshooting Information for isolating failed modules Included are instructions for operating the AWG2021 internal diagnostic routines and troubleshooting flowcharts for fault isolation Most of the flowcharts make use of the internal diagnostic routines to speed fault isolation to a module See page 6 53 Preparation Before doing any of t...

Страница 138: ...trap while handling these modules Do service of static sensitive modules only at a static free work station 4 Do not remove the AWG2021 cabinet unless you have met precaution number 3 above Consider all internal modules static sensitive 5 Do not allow anything capable of generating or holding a static charge on the work station surface 6 Handle circuit boards by the edges when possible 7 Do not sl...

Страница 139: ...rcuits with MOS inputs most sensitive 1 ECL 2 Schottky signal diodes 3 Schottky TTL 4 HighĆfrequency bipolar transistors 5 JFET 6 Linear microcircuits 7 LowĆpower Schottky TTL 8 TTL least sensitive 9 1 Voltage equivalent for levels voltage discharged from a 100ĂpF capacitor through resistance of 100 ohms 1Ă Ă100 to 500 V 6 600 to 800 V 2 200 to 500 V 7 400 to 1000 V est 3 250 V 8 900 V 4 500 V 9 1...

Страница 140: ...it when storing or transporting the instrument Inspect and clean the AWG2021 as operating conditions require The collection of dirt on components inside can cause them to overheat and break down Dirt acts as an insulating blanket preventing efficient heat dissipation Dirt also provides an electrical conduction path that can cause an instrument failure especially under high humidity conditions WARN...

Страница 141: ...ies Missing items or parts of items bent pins broken or frayed cables and damaged connectors Replace damaged or missing items frayed cables and defecĆ tive modules Cleaning Procedure Ċ Exterior WARNING To avoid potential electric shock hazard or damage to the AWG2021 circuits do not allow any moisture inside the AWG2021 during external cleaning use only enough liquid to dampen the cloth or applica...

Страница 142: ...miconducĆ tors Remove devices that have distorted pins Carefully straightĆ en pins as required to fit the socket using longĆnose pliers and reinsert firmly Ensure that straightening action does not crack pins causing them to break off Wiring and cables Loose plugs or connectors burned broken or frayed wiring Firmly seat connectors Repair or replace modules with defective wires or cables Chassis De...

Страница 143: ...pyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate 6 Use hot 48 9_ C to 60_ C 120_ F to 140_ F deionized water to thoroughly rinse the parts 7 Dry all parts with low pressure deionized air 8 Dry all components and assemblies in an oven or drying compartment using low temperature 51 7_ C to 65 6_ C 125_ F to 150_ F circulating air Lubrication There is no periodic lubricati...

Страница 144: ...Maintenance 6 8 AWG2021 Service Manual ...

Страница 145: ...this or any other procedure in this manual read the General Safety Summary and the Service Safety Summary beginning on page ix near the beginning of this manual To avoid possible personal injury or death disconnect the power cord from the line voltage source before doing any procedures in this section Section 10 Mechanical Parts List lists all mechanical parts in the AWG2021 NOTE Read these genera...

Страница 146: ...is specified in that step The first step of a module procedure lists all equipment required to remove and reinstall the module Table 6 4 Equipment Required Name Description Part Number Screwdriver handle Accepts TorxRĆdriver bits 003Ć0524Ć00 TĆ9 TorxR tip TorxRĆdriver bit for TĆ9 size screw heads 003Ć0965Ć00 TĆ10 TorxR tip TorxRĆdriver bit for TĆ10 size screw heads 003Ć0815Ć00 TĆ15 TorxR tip TorxR...

Страница 147: ...n Procedures AWG2021 Service Manual 6 11 In this manual procedures refer to front back top etc of the AWG2021 Figure 6 1 shows how the sides are referenced ns 1 2 5 F 1 2 1 2 Figure 6 1 AWG2021 Orientation AWG2021 Orientation ...

Страница 148: ... ąFan and Fan Frame 6 31 ąRear Shield Cover 6 33 ąRear BNC Connector Option 02 6 34 ąPower Supply Module 6 35 ąAUX Power Board and AC Inlet 6 37 ąMonitor Module and CRT Frame 6 39 ąA6 CPU A21Control or ąąA10 Synthesizer board 6 42 ąA31 Control board Option 02 6 42 ąA9 ECL Digital Data Out board Option 03 6 42 ąA25 TTL Digital Data Out board Option 04 6 42 ąA7 Floating Point Processor board Option ...

Страница 149: ...res AWG2021 Service Manual 6 13 FrontĆpanel Module FrontĆpanel Knob EMI Gasket Menu Buttons Trim Ring Line Cord Cabinet Rear Cover FloppyĆdisk Drive Bezel CRT Filter Line Fuse Fuse Cap Front Cover Optional Figure 6 3 External Modules ...

Страница 150: ...ule Front Panel A3 Analog Board A5 Backplane Board Aux Power Power Supply Module A6 CPU Board A10 Synthesizer Board AC Inlet A23 Analog Board Option 02 CH2 A7 Floating Point Processor Board Option 09 CRT Frame Board Support Board Support Battery Rear Panel Rear Shield Cover Connector Module Rear BNC Connector Fan Frame Fan Floppy Disk Drive Cover Floppy Disk Bracket Figure 6 4 Internal Modules ...

Страница 151: ...xternal Modules Do the Access Procedure page 6 12 before doing any procedure in this group This group contains the following procedures H Front panel Knob H Line Fuse and Line Cord H Rear Cover and Cabinet H EMI Gaskets H Front Cover Trim Ring and Menu Buttons H Front panel Module ...

Страница 152: ... and the front facing you see Figure 6 5 3 Remove front cover If the optional front cover is installed grasp the front cover by the left and right edges and snap it off of the trim ring When reinstalling align and snap back on 4 Remove knob Loosen the setscrew securing the knob using the 1 16 inch hex wrench Pull the knob toward you to remove it 5 Reinstallation Place the knob onto the shaft and t...

Страница 153: ...6 6 Now remove the fuse cap by turning it counter clockwise using a flat bladed screwdriver and remove the line fuse Reverse the procedure to reinstall 4 Remove line cord Find the line cord on the rear cover See Figure 6 6 Now remove the line cord retaining clamp by first unplugging the line cord from the line cord receptacle 1 Next grasp both the line cord and the retaining clamp and rotate it 90...

Страница 154: ...ff the rear cover 5 Orient instrument Set the AWG2021 face down with the front cover on the work surface and right side facing you 6 Remove floppy disk drive bezel Using a screwdriver with a size T 9 TorxR tip remove the four screws securing the floppy disk drive bezel to the cabinet Lift off the floppy disk drive bezel 7 Remove cabinet CAUTION To prevent damaging the eject button make sure floppy...

Страница 155: ... the four EMI shields on the trim ring d When reinstalling the four screws at the rear panel tighten them to a torque of 10 kg cm 8 7 in lbs e See the procedure Line Fuse and Line Cord on page 6 17 to reinstall the line cord This completes the AWG2021 reassembly Cabinet Screw TĆ15 Screws TĆ9 Rear Cover Screws TĆ15 Screws TĆ15 Figure 6 7 Rear Cover and Cabinet Removal ...

Страница 156: ...r of needle nose pliers to remove the four sections of EMI gaskets from the groove in the trim ring 3 Reinstall EMI gaskets Press the EMI gaskets back into the groove in the trim ring 1 Assemble equipment and locate modules to be removed No tools are needed Locate the modules to be removed in the locator diagram External Modules in Figure 6 3 2 Orient instrument Set the AWG2021 with the back down ...

Страница 157: ...nu buttons installed in the trim ring Also do not touch the contacts on the flex circuit exposed when you remove the trim ring 5 Remove trim ring Grasp the trim ring by the top edge and pry it up and lift it forward to snap it off of the trim ring If servicing the menu buttons lift them out of the trim ring When reinstalling reinsert the menu buttons align the trim ring to the chassis and press it...

Страница 158: ... 2 Remove front panel knob Do the Front panel Knob procedure on page 6 16 3 Remove front cover trim ring and menu buttons Do the Front Cover Trim Ring and Menu Buttons procedure on page 6 20 removing only the module s you want to service 4 Orient instrument Set the AWG2021 with the bottom down on the work surface and the front facing you 5 Remove front panel module a As shown in Figure 6 9 release...

Страница 159: ...anel module or the front panel buttons are to be serviced do the following substeps a Remove the front panel knob from the front panel module using the method described in the procedure Front panel Knob on page 6 16 b Remove the setscrew completely from the extension using the 0 05 inch hex wrench and then remove the extension from the shaft of the rotary switch c As shown in Figure 6 10 release t...

Страница 160: ...lation Procedures 6 24 AWG2021 Service Manual A12 Keyboard Hooks Hooks Figure 6 10 A12 Keyboard Removal d Now disassemble the front panel module components using Figure 6 11 as a guide Reverse the procedure to reassemble ...

Страница 161: ... the front panel module was further disassembled in step 6 then reverse substeps 6a 6d to reassemble using Figure 6 11 as a guide Then do the substeps in step 3 in reverse order reversing the order of the items in each substep Last reinstall the trim ring and if desired the front cover referring to the procedure Front Cover Trim Ring and Menu Buttons page 6 20 ...

Страница 162: ...g Board Option 02 H Connector Module H Fan and Fan Frame H Rear Shield Cover H Rear BNC Connector H Power Supply Module H AC Inlet and AUX Power Board H Monitor Module and CRT Frame H Circuit Boards H A6 CPU Board H A2 Memory Board H A21 Control Board H A10 Synthesizer Board H For Option 02 A22 Memory Board and A31 Control Board H For Option 03 A9 ECL Digital Data Out Board H For Option 04 A25 TTL...

Страница 163: ...Modules Figure 6 4 2 Orient instrument Set the AWG2021 with the top down on the work surface and the right side facing you If you are not servicing the A4 Power board skip to step 4 3 Remove A4 Power board a Disconnect the two interconnect cables at J300 and J310 on the A4 Power board See Figure 6 12 J140 A4 Power Board J310 J320 J300 J100 J120 Screw TĆ15 Screw TĆ15 Figure 6 12 A4 Power Board Remo...

Страница 164: ...e three ribbon interconnect cables at J300 J400 J410 and J500 of the A3 Analog board c Using a screwdriver with a size T 15 TorxR tip remove the four screws securing the A3 Analog board to the chassis d Lift the A3 Analog board up and away from the chassis to complete the removal 5 Remove A23 Analog board Option 02 If the AWG2021 includes Option 02 which adds a second output channel then it contai...

Страница 165: ...log Board Screw TĆ15 J100 J228 J230 J500 J230 Screw TĆ15 Screw TĆ15 Figure 6 13 A3 A23 Analog Board Removal 6 Reinstallation If the AWG2021 includes Option 02 do substeps 5a 5d to reinstall the A23 Analog board Do substeps 4a 4d in reverse order to reinstall the A3 Analog board then do substeps 3a 3d in reverse order to reinstall the A4 Power board ...

Страница 166: ...el Knob procedure on page 6 16 3 Remove front cover trim ring and menu buttons Do the Front Cover Trim Ring and Menu Buttons procedure on page 6 20 4 Orient instrument Set the AWG2021 with the top down on the work surface and the right side facing you 5 Remove connector module a Disconnect the interconnect cable at the CH1 Waveform Output connector See Figure 6 14 For an AWG2021 with Option 02 dis...

Страница 167: ...all connector module Install the connector module by doing substeps 5a 5c in reverse order 1 Assemble equipment and locate modules to be removed a No tools are needed to do this procedure b Locate the modules to be removed in the locator diagram Internal Modules in Figure 6 4 2 Orient instrument Set the AWG2021 with the bottom down on the work surface and the left side facing you 3 Remove fan and ...

Страница 168: ...To Power Supply J3 Figure 6 15 Fan and Fan Frame Removal 4 Reinstallation a Secure the fan to the fan frame b Connect the cable J3 to power supply module c Align the four protrusions of the fan frame with the holes of the chassis Slide the fan and fan frame to the lower left until the fan is in place ...

Страница 169: ...ork surface and the back facing you see Figure 6 16 3 Remove rear shield cover a Disconnect the ribbon interconnect cable from J30 on the A6 CPU board See Figure 6 16 b Using a screwdriver with a size T 15 TorxR tip remove the five screws securing the rear shield cover to the chassis from the back side c Using a screwdriver with a size T 15 TorxR tip remove the five screws securing the rear shield...

Страница 170: ...substeps 3a 3f in reverse order 1 Assemble equipment and locate modules to be removed a You will need a 1 2 inch open end wrench to do this procedure b Locate the modules to be removed in the locator diagram Internal Modules in Figure 6 4 An instrument with Option 02 has two additional BNC connectors 2 Orient instrument Set the AWG2021 with the top down on the work surface and the left side facing...

Страница 171: ...ved in the locator diagram Internal Modules in Figure 6 4 2 Orient instrument Set the AWG2021 with the bottom down on the work surface and the left side facing you 3 Remove power supply module a Disconnect the ribbon interconnect cable at J1 J3 J4 and J5 on the power supply module See Figure 6 18 b Disconnect the flat cable at J2 on the power supply module c Using a screwdriver with a size T 15 To...

Страница 172: ...ation Procedures 6 36 AWG2021 Service Manual Power Supply Module J1 J4 J3 J2 J5 Screws TĆ15 Figure 6 18 Power Supply Module Removal 4 Reinstallation Do substeps 3a 3c in reverse order to reinstall the power supply module ...

Страница 173: ...ply module Do the procedure Power Supply Module on page 6 35 5 Remove AC inlet a Disconnect the interconnect cable at CN1 on the AUX Power board b Using a 5 16 inch nut driver remove the nut attaching the ground wire to the chassis c Remove the two insulating tubes of cables attached to the AC inlet d Unsolder the three interconnect cables attached to the AC inlet e Using a screwdriver with a size...

Страница 174: ...CN1 Ground Wire AUX Power Board AC Inlet Screws TĆ15 Screws TĆ15 Figure 6 19 AUX Power Board and AC Inlet Removal 7 Reinstallation a Install the AUX Power board by doing substeps 6a 6c in reverse order b Install the AC Inlet by doing substeps 5a 5e in reverse order ...

Страница 175: ... the work surface and the left side facing you 4 Remove monitor module NOTE Take care not to damage the CRT surface when installing or removing the monitor module a Disconnect the ribbon interconnect cable at J901 on the monitor module See Figure 6 20 b Remove the five screws securing the monitor module top and bottom to the chassis c Release the snap at the right of the front panel module and shi...

Страница 176: ... Procedures 6 40 AWG2021 Service Manual Screws TĆ15 J901 Monitor Module Screw TĆ15 Screws TĆ15 Figure 6 20 Monitor Module Removal 5 Remove CRT frame Grasp the upper part of the CRT frame and take it out as shown in Figure 6 21 ...

Страница 177: ...Frame Figure 6 21 CRT Frame Removal 6 Reinstallation a Grasp the upper part of the CRT frame align the notch of the chassis with the protrusion of the CRT frame and place the CRT frame in the chassis b Install the monitor module by doing substeps 4a 4d in reverse order ...

Страница 178: ...e the board support upward while pushing its hook to the inside 5 Remove A6 CPU board CAUTION To avoid permanent loss of waveform files note the following A lithium battery which maintains the nonvolatile memory when power is off is located on the A5 Backplane board The nonvolatile memory that contains the waveforms and their setup parameter data is located on the A6 CPU board Removing either boar...

Страница 179: ...A10 Synthesizer board d For instruments with Option 02 disconnect the interconnect cables at J210 and J211 on the A10 Synthesizer board e Grasp the upper part of the A10 Synthesizer board and pull upward to remove it 8 Remove A31 Control board Option 02 The option adds the A31 Control board in the fourth slot from the top a Disconnect the interconnect cables at J120 J121 and J280 on the A21 Contro...

Страница 180: ...sconnect the flat cables at J100 and J200 on the A25 Digital Data Out board see Figure 6 22 b Grasp the upper part of the A25 Digital Data Out board and pull it upward to remove it 11 Remove A7 Floating Point Processor board Option 09 The option adds the A7 Floating Point Processor board in the first slot from the top a Grasp the upper part of the A7 Floating Point Processor board see Figure 6 22 ...

Страница 181: ...04 or A25 TTL Digital Data Out Board Option 04 A6 CPU Board Second Slot A7 Floating Point Processor Option 09 or A9 ECL Digital Data Out Board Option 03 A31 Control Board Option 02 A4 Power Board J64 J50 J75 J30 J210 J211 J200 J201 J750 J362 J4 J100 J100 J120 J280 J4 J121 J121 J120 Option 03 or J100 Option 04 J4 J280 J120 A21 Control Board Figure 6 22 Board Removal ...

Страница 182: ...h a size T 15 TorxR tip and a flat bladed screwdriver to do this procedure b Locate the modules to be removed in the locator diagram Internal Modules in Figure 6 4 2 Orient instrument Set the AWG2021 with the left side down on the work surface and the top facing you 3 Remove all boards Do the procedure Circuit Boards on page 6 42 4 Remove A5 Backplane board a Remove the five screws and a nut secur...

Страница 183: ...Backplane board Do substeps 4a 4g in reverse order to install the board b Install the other boards Do the procedure Circuit Boards on page 6 42 in reverse order reversing the items in each step Screws T 15 J7 J6 Screws T 15 J5 J4 J3 J1 J2 A5 Backplane Board J8 Figure 6 23 A5 Backplane Board Removal ...

Страница 184: ...e removed a You will need a soldering iron to do this procedure b You will also need a replacement lithium battery having the part number listed in section 10 Mechanical Parts List c Locate the battery to be removed in the locator diagram Internal Modules in Figure 6 4 2 Remove A5 Backplane board Do the A5 Backplane Board procedure on page 6 46 3 Orient board Set the A5 Backplane board on an insul...

Страница 185: ... procedure b Locate the modules to be removed in the locator diagram Internal Modules in Figure 6 4 2 Remove rear shield cover Do the Rear Shield Cover procedure on page 6 33 3 Remove A3 Analog board Do the A3 Analog Board procedure on page 6 27 removing only the A3 Analog board 4 Orient instrument Set the AWG2021 with the left side down on the work surface and the bottom facing you 5 Remove all c...

Страница 186: ...ppy disk drive to the bracket d Using a screwdriver with a size 1 Phillips tip remove the screws securing the spacer to floppy disk drive e Grasp the upper part of the floppy disk drive and pull it upward to remove it 7 Reinstallation a Install floppy disk drive module Do substeps 6a 6e in reverse order b Install circuit boards Do the procedure Circuit Boards on page 6 42 in reverse order c Instal...

Страница 187: ...rocedures AWG2021 Service Manual 6 51 Screws 1 Screws TĆ10 FloppyĆdisk Drive FloppyĆdisk Drive Cover Flat Cable Screws TĆ10 Screws 1 Screws 1 Screws 1 Spacer FloppyĆdisk Drive Bracket Figure 6 25 FloppyĆdisk Drive Module Removal ...

Страница 188: ...Removal and Installation Procedures 6 52 AWG2021 Service Manual ...

Страница 189: ...panel Module H Figure 6 35 Troubleshooting Procedure 3 Monitor Module H Figure 6 39 Troubleshooting Procedure 4 Module Isolation To use these procedures begin with the Primary Troubleshooting Procedure It prompts you to check various indications of AWG2021 functionality and directs you to the other troubleshooting procedures AWG2021 Diagnostics The AWG2021 has internal diagnostics that verify circ...

Страница 190: ...ll the diagnostics automatically As each test finishes the result is displayed on the screen 4 Check the diagnostic test results If any test failed go to Troubleshooting Procedure 4 Module Isolation on page 6 64 The table in the flowchart shows which module is related to each diagnostic test If the tests pass but there is still a problem go to the Primary Troubleshooting Procedure on page 6 55 1 R...

Страница 191: ...page 6 59 With the AWG2021 power on do the front panel lights come on and then go off a short time later Does the display seem to be working at all Power off the AWG2021 and remove the cabinet using the Rear Cover and Cabinet removal procedure Perform the monitor module troubleshooting procedure 3 page 6 61 Replace the A6 CPU board page 6 42 Does the AWG2021 respond correctly when the front panel ...

Страница 192: ...ace the fuse Does the fuse blow Replace the AUX Power board page 6 37 and the cables going to it Is there 90 250 VAC at J1 pins 1 and 3 on the power supply module see FigureĂ6 30 Is there 90 250 VAC at the AC Inlet Is there power at the line cord and outlet Fix the power problem Replace the AC Inlet page 6 37 Replace the AUX Power board page 6 37 Return to the primary toubleshooting procedure Repl...

Страница 193: ...Troubleshooting AWG2021 Service Manual 6 57 PRINCIPAL POWER Switch Fuse Figure 6 29 AUX Power Board J1 Figure 6 30 Power Supply Module ...

Страница 194: ... 6 32 A3 A23 Analog Board Table 6 5 Secondary Power Supply Voltages Supply Test Point Minimum Level Maximum Level 15 0 V A3 A23 J500 Pin 3 14 25 V 15 75 V 15 0 V A3 A23 J500 Pin 6 14 25 V 15 75 V 5 0 V A3 A23 J500 Pin 9 4 75 V 5 25 V 5 0 V A3 A23 J500 Pin 10 4 75 V 5 25 V 2 0 V A10 TP150 1 85 V 1 90 V ...

Страница 195: ...Ds have turned on and then turned off Do the front panel LEDs turn on The front panel module is ok Replace the A6 CPU board page 6 42 Yes Yes Yes No No No No Turn on the PRINCIPAL POWER SWITCH Is there 5 V between TP101 GND and TP100 see Figure 6 34 Yes No No Yes Are all front panel cables securely installed in their sockets and are the cables ok Securely install and or replace the front panel cab...

Страница 196: ...Troubleshooting 6 60 AWG2021 Service Manual TP100 5V TP101 GND Figure 6 34 Key Board ...

Страница 197: ...f the cable have signals similar to Figure 6 37 Do pins 2 and 4 of J50 on the A6 CPU board see Figure 6 26 have signals similar to Figure 6 37 Replace the cable Are the cables securely installed in their sockets and are the cables ok Securely install and or replace the cables Perform the power supply module troubleshooting procedure 1 page 6 56 Does J50 pin 7 on the A6 CPU board see Figure 6 26 ha...

Страница 198: ...021 Service Manual J901 Pin 1 Figure 6 36 Monitor Module 1 2 J901 pin 6 Vertical Sync 60 Hz Rate J901 pin 4 Horizontal Sync 31 75 kHz Rate 1 60V Ch2 M 20 0us 2 00V Ch2 2 00V Ch1 Figure 6 37 Horizontal and Vertical Sync Signals ...

Страница 199: ...Troubleshooting AWG2021 Service Manual 6 63 Black Level J901 pin 9 Video White Level 1 316mV Ch1 M 10 0us 200mV Ch1 Figure 6 38 A Video Signal with White and Black Levels ...

Страница 200: ... assumes that the AWG2021 is running and you can read the display Does the display report any errors Select the diagnostics menu in the UTILITY menu and run all the tests see the discussion of the diagnostics on page 6 53 Are any failures reported The AWG2021 is ok No Yes Yes No No Check all cables Be sure every cable is attached securely Replace the module indicated in the diagnostics Run all dia...

Страница 201: ...Options ...

Страница 202: ......

Страница 203: ...hen refer to page 7 11 for details H Option 09 provides increased internal calculation speed and two additional editors an FFT editor and a convolution editor See note below then refer to page 7 17 for details H Option 1R ships the waveform generator configured for installation in an instrument rack Refer to page 7 17 for details H Option 1S adds the WaveWriter S3FT400 H Option 95 ships with a tes...

Страница 204: ...l allows you to simultaneously output two different waveforms and to use arithmetic functions Option 03 Description With Option 03 the waveform generator can provide the following digital signals at the rear panel output connector This option cannot be installed with Option 04 or Option 09 The data D0 D11 going to the internal D A converter is buffered and routed to the output connector at the rea...

Страница 205: ...ÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ D A 12 12 ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Latch Data D0 to D11 D0 to D11 Clock Clock ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Clock Buffer Option 03 Waveform Memory Data 12 Bit Output Connector 12 Clock 24 2 Figure 7 1 Option 03 Block Diagram ...

Страница 206: ... Option 03 Output Connector Table 7 2 Option 03 Digital Output Signals Pin Number Signal Pin Number Signal 6 CLOCK 39 CLOCK 14 Data bit 0 47 Data bit 0 12 Data bit 1 45 Data bit 1 10 Data bit 2 43 Data bit 2 8 Data bit 3 41 Data bit 3 16 Data bit 4 49 Data bit 4 20 Data bit 5 53 Data bit 5 22 Data bit 6 55 Data bit 6 18 Data bit 7 51 Data bit 7 30 Data bit 8 63 Data bit 8 28 Data bit 9 61 Data bit...

Страница 207: ...ctor At this time the clock is not generated When waveform output begins the clock is generated and the data is updated NOTE During the hold off period when loading a new waveform into waveform memory and resetting the waveform memory excess output is generated in the data clock see Figure 7 3 Trigger Signal Waveform Load reset holdĆoff period Excess output can occur in these periods Figure 7 3 Ge...

Страница 208: ... 7 4 ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎ D0 D0 D1 D1 p 47 p 48 p 14 p 13 p 45 p 46 p 12 p 11 Connector Cable 2V 2V 2V 2V ÎÎ ÎÎ ÎÎ Î Î Î Î Î Î Î Î Î Î Figure 7 4 Output Circuit The data output signal skew is held to 1 ns maximum The rise and fall times depend on characteristics of the buffer IC but neither is greater than 1 ns See Figure 7 5 Both of these maximum levels a...

Страница 209: ...all Time Measure the time for the waveform to go from 10 to 90 of its peak value must be no greater than 1ns ÎÎÎÎ Raise Time ÎÎÎÎ Fall Time Figure 7 5 Output Waveform Latch the data with a clock before using the waveform Delay the clock appropriately with a delay line in order to reproduce the data reliably See Figure 7 6 ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ 12 12 Data Latch ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Clock ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎ...

Страница 210: ...ort as possible The acceptable length depends on the characteristics of the coaxial cable used but lengths under 1 meter are desirable H In order to minimize signal reflection carefully dress the ends of the cables as described below H Make the section stripped of its outer covering as short as possible Figure 7 7 shows the strip length of the coaxial cable H Connect the external covering of the c...

Страница 211: ...xample of the standard accessory cable and a receiving connector ÎÎ ÎÎ Connector Male Coaxial Cable Connector Male Receiving Connector Female Figure 7 8 Cable Examples Digital Data Latch Example Figure 7 9 shows an example of an external circuit for latching the digital data NOTE Tektronix cannot be responsible for the infringement of any third party industrial proprietary rights copyrights or oth...

Страница 212: ... Q3 Q3 D4 Q4 Q4 D5 Q5 Q5 Q0 Q0 MR CLK D0 D1 D2 Q1 Q1 Q2 Q2 D3 Q3 Q3 D4 Q4 Q4 D5 Q5 Q5 Q0 Q0 MR CLK CLOCK CLOCK D0 D0 D11 D11 RESISTOR 50 W CAPACITOR 0 1 mF DELAY LINE 4 ns 10E116 10E116 2 V 2 V 2 V 2 V 2 V 10E116 2 V 10E151 10E151 DB0ĆDB11 Figure 7 9 Digital Data Latch Example ...

Страница 213: ...e same time that the analog waveform is output the digital output can be obtained The output is TTL level The same clock that goes to the internal D A converter is buffered and routed to the connector The clock output is also TTL level Figure 7 10 is a block diagram of the digital data output Option 04 ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ Option 04 ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Output...

Страница 214: ...ÎÎ ÎÎ Î Î Figure 7 11 Option 04 Output Connector Table 7 3 Option 04 Connector Pin Assignments Pin Number Signal Pin Number Signal 1 D0 LSB 15 D7 3 D1 17 D8 5 D2 19 D9 7 D3 21 D10 9 D4 23 D11 MSB 11 D5 25 Clock 13 D6 Pins other than those listed above are connected to ground The pin assignments are identical for both CH1 and CH2 Operation when Option 04 is installed is basically the same as the st...

Страница 215: ...gram of the output circuit After first passing through an output resistance of 50 W the buffer output is routed to the output connectors The AWG2021 can be used without terminating the receiving user side with a resistance of 50 W but when waveform distortion is great the 50 W termination is required ÎÎ ÎÎ 50 W 50 W Buffer ÎÎ ÎÎ 50 W 50 W Buffer Figure 7 13 Output Circuit Output Circuit and Output...

Страница 216: ... a 50 W termination Level Low 0 8 V or less into a 50 W termination Figure 7 14 Output Waveform Output waveforms will have transmission distortion if a cable is used It is necessary to latch the data with a clock before using the waveform at the cable receiving side user side and to reproduce the waveform Delay the clock with the delay line in order to reproduce the data reliably see Figure 7 15 Î...

Страница 217: ... characteristic of the coaxial cable used but lengths under one meter are desirable Cable Examples The AWG2021 with Option 04 comes with a digital data out cable as a standard accessory The cable is one meter long and is illustrated in Figure 7 16 The part number for the cable is 174 3192 00 ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ Î Î Î Î ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎ...

Страница 218: ... proprietary rights copyrights or other rights arising from the use of these circuits NOTE The ECB is a multi layer board One layer is used as ground and the other as the power supply The data lines are the same length so that their delay times are equal ÎÎÎ ÎÎÎ ÎÎÎ Î ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ D0 D1 D7 ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ D8 D11 Î Clock GND Î D0 GND ÎÎ Delay Line D11 G...

Страница 219: ... WaveWriter is an application program used to create waveforms for advanced signal generating and processing instruments Many Tektronix instruments such as arbitrary waveform generators and oscilloscopes with the save on delta feature are enhanced by this program WaveWriter helps users configure waveforms with a minimum of effort With the WaveWriter package you can create new waveforms or edit wav...

Страница 220: ... TTL Digital Data Out cable for Option 04 174Ć3192ĆXX 1 Certificate of Calibration The following optional accessories are recommended for use with the instrument Table 7 5 Optional Accessories List Qty Description Part Number 1 Service manual 070Ć9098ĆXX 1 Front cover 200Ć3232ĆXX 1 Accessory pouch 016Ć1159ĆXX 1 C9 camera adapter 016Ć1154ĆXX 1 GPIB cable 012Ć0991ĆXX 1 Termination board for Option 0...

Страница 221: ...tion 1 Fuse 5ĂA T IEC127 159Ć0210ĆXX 1 Fuse cap 200Ć2265ĆXX Table 7 6 Maintenance Kit Contents Qty Description Part Number 1 ExtenderĆA board for slot 1 2 3 4 671Ć2331ĆXX 1 ExtenderĆB board for slot 5 671Ć2487ĆXX 1 Cable kit 198Ć5802ĆXX 1 Ejector 003Ć1315ĆXX 1 Header 131Ć5537ĆXX 1 Connector PELTOLAĆtoĆBNC 131Ć1315ĆXX ...

Страница 222: ...Options and Accessories 7 20 AWG2021 Service Manual ...

Страница 223: ...Replaceable Electrical Parts ...

Страница 224: ......

Страница 225: ...t The modules that make up this instrument are often a combination of mechanical and electrical subparts Therefore all replaceable modules are listed in sec tion 10 Mechanical Parts List Refer to that section for part numbers when using this manual ...

Страница 226: ...Replaceable Electrical Parts 8 2 AWG2021 Service Manual ...

Страница 227: ...Diagrams ...

Страница 228: ......

Страница 229: ...iagram of AWG2021 with Options 02 and 03 H Block Diagram of AWG2021 with Options 02 and 04 H Interconnect Diagram of AWG2021 with Options 02 04 and 09 H Interconnect Diagram of AWG2021 Option 03 Block diagrams show the modules and functional blocks in the AWG2021 Interconnect diagrams show how the modules in the AWG2021 connect together ...

Страница 230: ...Diagrams 9 2 AWG2021 Service Manual ...

Страница 231: ...nal Output Signal Output CH2 CH1 Fan 12 V Low Voltage Power Supply 15 V 15 V 5 V 5 V 2 V A4 POWER CPU Memory GPIB RS232C GPIB RS232C A6 CPU Display Control Option 09 A7 Floating Point Processor Floppy Disk Drive Front Panel A12 KEY Display Monitor Bus Analog Processing Waveform Memory Control Clock Divider Waveform Memory DAC Waveform Memory Control Figure 9 1 Block Diagram of AWG2021 with Options...

Страница 232: ...ignal A21 CONTROL Clock Clock Synthesizer A10 SYNTHESIZER Bus GPIB RS232C Front Panel A12 KEY CPU Memory GPIB A6 CPU Display Control Floppy Disk Drive Display Monitor Low Voltage Power Supply 15 V 15 V 5 V 5 V 2 V A4 POWER Fan 12 V RS232C Clock Divider A31 CONTROL Waveform Memory DAC Waveform Memory Control Clock Divider Waveform Memory DAC Waveform Memory Control Figure 9 2 Block Diagram of AWG20...

Страница 233: ...R Clock A21 CONTROL Bus GPIB RS232C Front Panel A12 KEY Display Control CPU Memory GPIB RS232C A6 CPU 15 V 15 V 5 V 5 V 2 V Low Voltage Power Supply A4 POWER Floppy Disk Drive Fan 12 V CH2 TTL Level CH1 TTL Level Digital Data Out Display Monitor Clock Divider A31 CONTROL Waveform Memory DAC Waveform Memory Control Clock Divider Waveform Memory DAC Waveform Memory Control Figure 9 3 Block Diagram o...

Страница 234: ...IN to J750 A10 J2 J10 A6 CPU J30 J75 W630 5con Slot 2 S I W150 W153 W155 W158 from J310 A4 W3110 CLOCK IN J360 J200 J201 J210 J211 J750 A10 SYNTHESIZER J362 W362 J100 J5 J1 J1 A7 FLOATING POINT PROCESSOR A21 CONTROL CH1 J4 J5 W210 J120 J121 J280 J100 J474 J410 W150 W153 MARKER2 OUT CLOCK OUT W321 J922 SYNC OUT J912 MARKER1 OUT W9 5con J1 U950 FDD UNIT W675 26con A3 ANALOG CH1 J500 J300 J150 J400 J...

Страница 235: ...0 5con W301 W310 J970 EXT TRIG IN to J750 A10 J2 J10 A6 CPU J30 J75 W630 5con Slot 2 S I W150 W153 from J310 A4 W310 CLOCK IN J360 J200 J201 J750 A10 SYNTHESIZER J362 W362 J100 J5 A21 CONTROL CH1 J4 J5 W210 J120 J121 J280 J100 J474 J410 W150 W153 MARKER2 OUT CLOCK OUT W321 J922 SYNC OUT J912 MARKER1 OUT W9 5con J1 U950 FDD UNIT W675 26con A3 ANALOG CH1 J500 J300 J150 J400 J410 J100 J160 J230 W151 ...

Страница 236: ...9 8 AWG2021 Service Manual ...

Страница 237: ...Replaceable Mechanical Parts ...

Страница 238: ......

Страница 239: ...mber H Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Change information if any is located at the rear of this manual Tektronix part numbers contain two digits that show the revision level of the part For most parts in ...

Страница 240: ...me Description 1 Figure Index Number Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow 2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part ...

Страница 241: ...2548 XEROX BUSINESS SERVICES DIV OF XEROX CORPORATION 14181 SW MILLIKAN WAY BEAVERTON OR 97077 0JR05 TRIQUEST CORP 3000 LEWIS AND CLARK HWY VANCOUVER WA 98661 2999 0KB01 STAUFFER SUPPLY 810 SE SHERMAN PORTLAND OR 97214 00779 AMP INC 2800 FULLING MILL PO BOX 3608 HARRISBURG PA 17105 07416 NELSON NAME PLATE CO 3191 CASITAS LOS ANGELES CA 90039 2410 2W733 BELDEN CORPORATION 2200 US HIGHWAY 27 SOUTH P...

Страница 242: ...SCR ASSEM WSHR 6 32 X 0 625 PNH STL T 15 0KB01 ORDER BY DESC 8 200 3991 XX 1 COVER REAR HARD POLYCARBONATE LEXAN TK1163 ORDER BY DESC 9 390 1145 XX 1 CABINET SCOPE AL TEK BLUE 80009 390 1145 XX 10 211 0378 XX 4 SCR ASSEM WSHR 4 40 X 0 375 PNH STL T9 0KB01 ORDER BY DESC 11 200 3983 XX 1 BEZEL FDD AL 80009 200 3983 XX 12 348 1276 XX 1 GASKET SHIELD CONDUCTIVE FORM STRIP 80009 348 1276 XX 13 260 2539...

Страница 243: ...Replaceable Mechanical Parts AWG2021 Service Manual 10 5 8 4 5 2 3 6 7 17 13 12 11 14 15 16 18 10 9 19 1 Figure 10 1 Cabinet ...

Страница 244: ...2 213 0882 XX 2 SCREW TPG TR 6 32 X 0 437 PNH STL T 15 0KB01 ORDER BY DESC 13 119 2683 XX 1 FILTER RFI 50 60HZ 250VAC 6A FL100 TK2058 ZUB2206H F 14 426 2426 XX 1 FRAME FAN MTG POLYCARBONATE TK1163 426 2426 XX 15 210 0457 XX 1 NUT PL ASSEM WA 6 32 X 0 312 STL TK0435 ORDER BY DESC 16 334 3379 XX 1 MARKER IDENT MARKED GROUND SYMBOL 07416 ORDER BY DESC 17 441 2074 XX 1 CHASSIS ASSY ALUM 80009 441 2074...

Страница 245: ...ix Part Number 30 426 2436 XX 1 FRAME CRT FLTR POLYCARBONATE BLACK 80009 426 2436 XX 31 348 1302 XX 1 GASKET SHIELD CONDUCTIVE URETHANE FORM 80009 348 1302 XX 32 640 0081 XX 1 DISPLAY MONITOR 7 INCH 640 X 480 PIXEL DS100 80009 640 0081 XX 8 5 9 10 12 11 13 7 4 2 3 14 16 15 18 1 32 31 22 29 27 28 30 26 25 6 24 23 See Figure 10Ć5 for Detailed View 17 19 21 20 20 Figure 10 2 Main Chassis and CRT ...

Страница 246: ...AL SHIELD ELEC FDD AL TK0191 TK0191 337 3983 XX 337 4088 XX 14 407 4643 00 1 BRACKET FDD STL 80009 407 4693 00 15 348 1276 00 2 GASKET SHIELD CONDUCTIVE FORM STRIP 80009 348 1276 XX 16 119 4404 XX 119 5953 XX J300101 J310xxx J310xxx 1 1 DISK DRIVE FLOPPY 3 5 INCH W INTERFACE U950 DISK DRIVE FLOPPY 3 5 INCH W INTERFACE U950 80009 80009 119 4404 XX 119 5953 XX 17 105 1081 00 1 BRACKET SPACER TK1163 ...

Страница 247: ...eplaceable Mechanical Parts AWG2021 Service Manual 10 9 31 21 A5 22 1 A3 9 30 28 27 26 1 25 20 23 20 5 7 8 4 2 3 5 6 A4 29 30 24 11 12 14 10 13 15 19 16 18 17 Figure 10 3 Main Chassis and Circuit Boards ...

Страница 248: ...H1 A21 80009 671 3455 XX 671 3850 XX J310559 J320100 1 CKT BD ASSY CONTROL CH1 A21 80009 671 3850 XX 671 4247 XX J320101 1 CKT BD ASSY CONTROL CH1 A21 80009 671 4247 XX 8 337 3890 XX 3 SHIELD ELEC EMI SMA COPPER 80009 337 3890 XX 9 211 0001 XX 6 SCREW MACHINE 2 56 X 0 25 PNH STL TK0435 ORDER BY DESC 10 131 5524 XX 3 CONN RF JACK SMA 50 OHM FEMALE A10J360 A21J410 A21J474 80009 131 5524 XX 11 348 13...

Страница 249: ...Replaceable Mechanical Parts AWG2021 Service Manual 10 11 A21 A10 5 8 11 10 9 6 8 11 10 9 12 7 2 3 A6 4 1 13 14 15 16 17 18 13 14 15 Figure 10 4 Circuit Boards ...

Страница 250: ...UT PLAIN HEX 0 375 32 X 0 5 BRS 73743 3145 402 7 210 0840 XX 1 WASHER FLAT 0 39 ID X 0 562 OD X 0 02 STL 86928 ORDER BY DESC 8 348 1276 XX 1 GASKET SHIELD CONDUCTIVE FORM STRIP 80009 348 1276 XX 9 131 1315 XX 1 CONN RF JACK BNC PNL 50 OHM FEMALE J970 24931 28JR306 1 10 366 2159 XX 1 KNOB IVORY GRAY SCROLL 1 243 X 1 4 X 0 4 H TK1163 ORDER BY DESC 11 213 0153 XX 1 SETSCREW 5 40 X 0 125 STL TK0392 OR...

Страница 251: ...Replaceable Parts AWG2021 Service Manual 10 13 A12 6 8 10 7 11 12 14 13 16 1 15 4 5 3 2 9 Figure 10 5 Front Panel Assembly ...

Страница 252: ...UBBER 80009 348 1324 XX 6 210 0259 XX 1 TERMINAL LUG 0 099 ID LOCKING BRS TK1572 ORDER BY DESC 7 210 0001 XX 1 WASHER LOCK 2 INTL 0 013 THK STL 78189 1202 00 00 0541 8 210 0405 XX 2 NUT PLAIN HEX 2 56 X 0 188 BRS 73743 12157 50 9 671 3456 XX J300100 J310558 1 CKT BD ASSY CONTROL CH2 A31 80009 671 3456 XX 671 3851 XX J310559 J320100 1 CKT BD ASSY CONTROL CH2 A31 80009 671 3851 XX 671 4255 XX J32010...

Страница 253: ...Replaceable Parts AWG2021 Service Manual 10 15 4 5 1 2 3 12 13 11 1 11 10 A23 A31 6 7 8 9 Figure 10 6 Option 02 ...

Страница 254: ...HIELD ELEC REAR ECL DIGITAL DATA OUT BRS 80009 337 4028 XX 2 131 5566 XX 1 CONN RIBBON PCB FEMALE RTANG 68 POS A9J150 80009 131 5566 XX 3 334 8857 XX 1 MARKER IDENT MKD ECL DIGITAL DATA OUT 80009 334 8857 XX 4 348 1368 XX 2 GASKET SHIELD FINGER TYPE BE CU 80009 348 1368 XX 5 671 2497 XX J300100 J310558 1 CKT BD ASSY DIGITAL DATA OUT A9 80009 671 2497 XX 671 3849 XX J310559 1 CKT BD ASSY DIGITAL DA...

Страница 255: ...Replaceable Parts AWG2021 Service Manual 10 17 2 5 1 3 4 A9 2 Figure 10 7 Option 03 ...

Страница 256: ...y Name Description Mfr Code Mfr PartNumber OPTION 04 10 8 1 337 4029 XX 1 SHIELD ELEC REAT TTL DIGITAL DATA OUT BRS 80009 337 4029 XX 2 334 8858 XX 1 MARKER IDENT MKD TTL DIGITAL DATA OUT 80009 334 8858 XX 3 131 5778 XX 2 CONN HDR PCB MALE RTANG 2X13 0 1 CTR TK0191 131 5778 XX 4 671 3458 XX 1 CKT BD ASSY A25 TTL DIGITAL DATA OUT A25 80009 671 3458 XX ...

Страница 257: ...Replaceable Parts AWG2021 Service Manual 10 19 3 1 2 A25 4 Figure 10 8 Option 04 ...

Страница 258: ...eable Parts List Fig Index Number TektronixPart Number Serial No Effective Serial No Discont d Qty Name Description Mfr Code Mfr PartNumber OPTION 09 10 9 1 671 3179 XX 1 CIRCUIT BD ASSY FLOATING PROCESSOR A7 TK0191 671 3179 XX 1 A7 Figure 10 9 Option 09 ...

Страница 259: ...22 XX CABLE ASSY RF 3 500 OHM COAX 32CM L 9 2 OPTION 02 ONLY 80009 174 3422 XX W158 174 2956 XX CABLE ASSY RF 50 OHM COAX 32CM L 9 2 OPTION 02 ONLY 80009 174 2956 XX W160 174 2947 XX CABLE ASSY RF 50 OHM COAX 42CM L 9 2 OPTION 02 ONLY 80009 174 2947 XX W170 174 2939 XX CABLE ASSY RF 50 OHM COAX 12CM L 9 1 80009 174 2939 XX W204 174 3421 XX CA ASSY SP ELEC 30 30AWG 60CM L FLAT OPTION 03 ONLY 80009 ...

Страница 260: ... AWG 250 10A 98 INCH L OPTION A4 NORTH AMERICAN 2W733 ORDER BY DESC 161 0167 00 1 CA ASSY PWR 3 0 75MM SQ 250V 10A 2 5 METER OPTION A5 SWITZERLAND S3109 ORDER BY DESC OPTIONAL ACCESSORIES 011 0049 XX 1 TERMN COAXIAL 50 OHM 2W BNC 64537 T132DS 012 0991 XX 1 CABLE INTCON SHLD CMPST GPIB CRC 6D224 81190 020 012 1256 XX 1 CABLE INTCON 50 OHM COAX 98 0 L TK0BD 7220369010 012 1342 XX 1 CA ASSY RF COAXIA...

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