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Tektronix DSA8300, Service Manual

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Tektronix DSA8300 Service Manual Download Page 98

Troubleshooting

Troubleshooting

This section contains information and procedures designed to help you isolate
faulty modules in the instrument. If an assembly must be replaced, follow the
removal instructions. (See page 4-5,

Removal and Installation

.)

Required Equipment

You will need a digital voltmeter to check power supply voltages. (See page 4-55.)

Testing might also be required to correct some faults. In this case, you need the
test equipment listed in the

Adjustment Procedures

in this manual.

Check for Common Problems

Use the following table to quickly isolate possible failures.

Table 4-2: Possible causes of instrument failure

Failure symptom

Possible cause(s) / solutions

Mainframe will not power on

Power cord not plugged in.

Failed fuse.

Faulty power supply.

Faulty modules.

Main power switch (rear panel) not on.

Front panel power switch not on.

Monitor not connected properly.

Front panel light comes on (mainframe
powers on), but one or more fans will not
operate

Faulty fan cable.

Defective fan assembly.

Faulty power supply.

Mainframe powers on but no signal displayed

Wrong channel is selected; select correct channel from front-panel channel

selector or vertical setup menu.

Module not fully installed in the slot.

Signal cable not connected properly.

Wrong trigger input; check trigger cable connection to either direct or prescale

trigger input and make sure that the corresponding trigger source is selected in
the Trigger Setup menu.

4–50

DSA8300 Digital Serial Analyzer and Modules Service Manual

Summary of Contents for DSA8300

Page 1: ...xx DSA8300 Digital Serial Analyzer and Modules ZZZ Service Manual P077057200 077 0572 00 ...

Page 2: ......

Page 3: ...DSA8300 Digital Serial Analyzer and Modules ZZZ Service Manual xx www tektronix com 077 0572 00 ...

Page 4: ...d and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14150 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 833 ...

Page 5: ...s taxes and any other charges for products returned to 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...

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Page 7: ...le 2 13 80A02 EOS ESD Protection Module 2 14 80A05 Electrical Clock Recovery Module 2 14 82A04 Phase Reference Module 2 15 Adjustment Procedures Adjustment Procedures 3 1 Required Equipment 3 1 Equipment Hookup 3 2 Main Instrument Adjustments 3 2 DC Calibrator Adjust 3 2 DC Calibrator Adjust Verification 3 3 Internal 10 MHz Adjust 3 4 Maintenance Maintenance 4 1 Preventing ESD 4 1 Inspection and C...

Page 8: ...Fan Assembly 4 31 Low Voltage Power Supply 4 33 Module Slot Doors 4 40 Electrical Sampling Modules 4 45 Optical Sampling Modules 4 48 80A00 and 82A00 Series Modules 4 48 Troubleshooting 4 50 Required Equipment 4 50 Check for Common Problems 4 50 Isolating Failures to the 80E0X 80C0X Modules or the Mainframe 4 53 Isolating to a Board If Power Will Not Come Up 4 54 Checking the Power Supply Voltages...

Page 9: ...rews and threaded posts 4 36 Figure 4 18 Module slot door removal 4 41 Figure 4 19 Module ejector handles removal 4 43 Figure 4 20 Spring arm position 4 44 Figure 4 21 Sample of electrical module hardware removal 4 46 Figure 4 22 80A00 and 82A00 series parts removal 80A01 shown 4 49 Figure 4 23 Location of debug pins 4 54 Figure 5 1 External parts 5 5 Figure 5 2 Drives 5 7 Figure 5 3 Front panel a...

Page 10: ...Table of Contents Figure 5 16 82A04 module 5 26 Figure 5 17 80A06 module 5 28 iv DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 11: ...n system replaceable parts list 5 14 Table 5 8 Time Base delay cables replaceable parts list 5 16 Table 5 9 Electrical Front End cables replaceable parts list 5 17 Table 5 10 Optical Front End cables replaceable parts list 5 18 Table 5 11 80E01 80E02 80E03 and 80E04 modules replaceable parts list 5 19 Table 5 12 80E05 module replaceable parts list 5 21 Table 5 13 80E06 module replaceable parts lis...

Page 12: ...ure that the product is properly grounded Observe all terminal ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product The inputs are not rated for connection to mains or Category II III or IV circuits Do not apply a potential to any terminal including the common termin...

Page 13: ...or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Symbols and Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you ...

Page 14: ...rendering first aid and resuscitation is present Disconnect Power To avoid electric shock switch off the instrument power then disconnect the power cord from the mains power Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing co...

Page 15: ...al Conventions This manual uses certain conventions that you should become familiar with before beginning service Assemblies and Modules Throughout this manual the term assembly appears An assembly is composed of electrical and mechanical assemblies circuit cards interconnecting cables and a user accessible front panel References to an assembly are different than references to a module such as Sam...

Page 16: ...ektronix part number 071 0435 XX 80A01 Trigger Prescale Limiting Preamplifier Module User manual Tektronix part number 071 0873 XX 80A02 EOS ESD Protection Module Instructions Tektronix part number 071 1317 XX 80A03 TekConnect Probe Interface Module Instructions Tektronix part number 071 1298 XX 80A05 Electrical Clock Recovery Module User manual Tektronix part number 071 1467 XX 82A04 Phase Refere...

Page 17: ...Operating Information ...

Page 18: ......

Page 19: ...ind User Information CAUTION Be sure to read all safety information warnings and cautions in the user manuals that relate to the information you use there Some topics of interest when servicing the product are listed in the following table The manuals are available at www tektronix com manuals Location of user topics Manual Topic Environmental requirements site considerations operating requirement...

Page 20: ...number 077 0571 00 System diagnostics procedure System hard drive rebuild procedure Software release notes Software installation Product software install instructions Tektronix part number 071 2050 02 Shipped with the product software disc Operating system reinstallation 1 2 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 21: ...Theory of Operation ...

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Page 23: ... is the low 0 state Signal states may also be described as true meaning their active state or false meaning their nonactive state The specific voltages that constitute a high or low state vary among the electronic devices The instrument control system is a dual Wintel PowerPC based processor board The platform features XGA resolution flat panel display transparent touch screen and user front panel...

Page 24: ...ame Overview This mainframe overview describes the basic operation of each functional circuit block as shown in the following figure Figure 2 1 DSA8300 block diagram 2 2 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 25: ...essor system The processor system contains a dual Wintel PowerPC The basic instrument configuration supports up to eight channels labeled Ch 1 through Ch 8 provides two external trigger inputs for direct and prescaled clock triggering through built in prescaler and is able to support four optional internal trigger sources associated with the large slot channels Display Panel Color LCD display Acti...

Page 26: ...ltage Power Supply and stand by power on the motherboard The power supply sends a power fail PF warning to the processor system if the power is going down Fans The fan assembly provides forced air cooling for the instrument The fans are controlled by the PPC processor Electrical Sampling Modules 80E01 80E02 80E03 80E06 80E07 and 80E09 Sampling Modules The electrical sampling modules non TDR capabl...

Page 27: ...volatile EEPROM in the sampling module although the responsibility for the execution of these settings is with the mainframe 80E04 80E08 and 80E10 TDR Sampling Modules The TDR Sampling modules are low noise samplers with each channel capable of generating its own Time Domain Reflectometry TDR step The basic features of these modules are listed in the following table TDR sampling module features Fe...

Page 28: ...etting the sampler bandwidth as demanded The key features supported in the module are A one channel low noise adjustable bandwidth sampler allowing multiple bandwidth settings for optimizing noise versus bandwidth demands An amplified or nonamplified O E converter Support for internal RF switches in the signal path with a straight through path and three hardware filtered reference receiver paths b...

Page 29: ...t two offset inputs are adjusted in the amplifier so that the signal stays in range for all of the gain settings Next offset is measured for all gain settings and stored so it can be subtracted from the raw measured current Because the measurements are made through independent paths the power monitor is useful in debugging module mainframe problems The main board of the module only provides power ...

Page 30: ...dth and response is set during the calibration such that the combined system will have an Optical Bandwidth 6 dB 12 5 GHz 20 GHz The sampler bandwidth and response is set during the calibration such that the combined system will have an Optical Bandwidth 6 dB 20 GHz 80C02 Optical Sampling Module The 80C02 module is optimized for testing of long wavelength 1100 1650 nm signals at 9 953 Gb s SONET O...

Page 31: ...age are the same values as in the OC48 mode The signal is routed through a hardware filter designed to result in the combined system having an GBE 1 25 Gb s Gigabit Ethernet Reference Receiver response The 80C03 module can be configured with clock recovery that supports Fibre Channel 1063 1 063 Gb s and OC 48 STM 16 2 488 Gb s standards 80C04 Optical Sampling Module The 80C04 module is optimized f...

Page 32: ...ndwidth telecommunications with its high optical bandwidth 2 3 GHz Filtered rates are OC 3 OC 12 unfiltered rate is OC 48 There is clock recovery option available 155 622 2488 Multi rate 80C07B Optical Sampling Module The 80C07B module is designed to test both long and short wavelength 700 1650 nm signals This module is intended to be used as a test and measurement tool for high bandwidth telecomm...

Page 33: ...able 9 953 10 3125 10 518 Gb s and Continuous rate from 9 8 Gb s to 12 6 Gb s 80C09 Optical Sampling Module The 80C09 module is designed to test long wavelength 1100 1650 nm signals This module is intended to be used as a test and measurement tool for high bandwidth telecommunications with its high optical bandwidth 30 GHz Supported standards or data filtering rates include OC 192 and FEC10 709 Cl...

Page 34: ...ndards or data filtering rates include 9 953 10 31 10 518 10 66 10 71 11 1 Gb s Clock recovery options are available 9 953 10 66 10 71 Gb s and Continuous rate from 9 8 Gb s to 12 6 Gb s 80C12 Optical Sampling Module The 80C12 module is designed to test both long and short wavelength 700 1650 nm signals This module is intended to be used as a test and measurement tool for high bandwidth telecommun...

Page 35: ...tical Sampling Module The 80C25GBE module is designed to test long wavelength 1310 and 1550 nm signals This module is intended to be used as a test and measurement tool for high bandwidth telecommunications with its high optical bandwidth 65 GHz Supported standards or data filtering rates include 25 781 Gb s 100GBase xR4 and 27 739 Gb s 100GBase xR4 FEC 65 GHz The sampler bandwidth and response is...

Page 36: ...mat requirements and provides this signal as a trigger source to the DSA8300 Front panel connectors provide a replica of the recovered clock signal The module uses one of two separate clock recovery circuits dependant on the specified data rate The single ended or complementary input signals are split with a 1 2 divider and routed to the two circuits The low bandwidth circuit recovers clock and da...

Page 37: ...ection modes available are free run where the module provides unit circle location information for the phase of the data sample and triggered where the module in conjunction with the trigger signal provides both base positioning and refined positioning for the data sample The input is precision 1 85 mm Phase correction works over the range of 2 5 GHz 25 GHz 82A04 or 2 5 GHz 60 GHz 82A04 60G The LE...

Page 38: ...Theory of Operation 2 16 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 39: ...Adjustment Procedures ...

Page 40: ......

Page 41: ...ty Signal source Signal generator 50 MHz to 1 GHz 1 ppm frequency accuracy 1 ea Frequency counter Frequency resolution 12 digits 1 ea Meter Digital Multimeter with 6 5 plus digits 1 ea PC compatible computer with National Instruments GPIB Controller card and software running Windows 95 98 or NT 1 ea Instrument controller only one of these configurations required National Instruments USB GPIB Contr...

Page 42: ...fy communication between the controller and DUT by entering the following GPIB command IDN The instrument should respond with Tektronix and Firmware Version 4 Turn off the instrument cal constant protection by entering the following GPIB command SYST PROT OFF 5 Set the instrument DC calibrator offset cal constant to 0 by entering the following GPIB command CALCOMP DOUBLE DcCalOffsetAdj 0 0 6 Wait ...

Page 43: ...6 Wait 8 seconds and then save the DC adjustments by entering the following GPIB command CAL SAVE FACT MAIN 17 Update the mainframe calibration time date temperature stamp by entering the following GPIB command CAL UPDATEINFO MAIN 18 Turn on the instrument cal constant protection by entering the following command SYST PROT ON DC Calibrator Adjust Verification To verify that the DC calibration adju...

Page 44: ...r mode to External select Advance Trigger mode and then select External Trigger for TDR mode 4 Enter the following GPIB command to turn the instrument cal constant protection off SYST PROT OFF 5 Set the calibration value to the default by entering the following GPIB command CALCOMP DOUBLE Internal10MHzRefFreq 10e6 6 Measure the TDR Clock Out frequency Reading 1 7 Set the DSA8300 trigger mode to In...

Page 45: ...nstants by entering the following GPIB command CAL SAV FACTORY MAIN 13 Update the mainframe calibration time date temperature stamp by entering the following GPIB command CAL UPDATEINFO MAIN 14 Enter the following GPIB command to turn the instrument cal constant protection on SYST PROT ON End of Procedure DSA8300 Digital Serial Analyzer and Modules Service Manual 3 5 ...

Page 46: ...Adjustment Procedures 3 6 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 47: ...Maintenance ...

Page 48: ......

Page 49: ...tore static sensitive assemblies in their static protected containers or on a metal rail Label any package that contains static sensitive boards 3 Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these assemblies Service static sensitive assemblies only at a static free work station 4 Do not place anything capable of generating or holding a st...

Page 50: ...tly on the display surface Do not scrub the display with excessive force Clean the flat panel display surface by gently rubbing the display with a clean room wipe such as WypAll Medium Duty Wipes 05701 available from Kimberly Clark Corporation If the display is very dirty moisten the wipe with distilled water or a 75 isopropyl alcohol solution and gently rub the display surface Avoid using excess ...

Page 51: ...nsulation and deformed contacts Dirt in connectors Repair or replace defective assemblies Clear or wash out dirt 80C0X male fiber connections Lint or dust on all male fiber connections Clean all male fiber connections with a lint free cleaning cloth Carrying handle and cabinet feet Correct operation Repair or replace defective assembly Accessories Missing items or parts of items bent pins broken o...

Page 52: ...ed air approximately 9 psi 2 Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 75 solution and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards NOTE If after performing steps 1 and 2 an assembly is clean upon inspection skip the remaining steps 3 Gain access to the parts to be cleaned by removing e...

Page 53: ... No Name Description Part number 1 Screwdriver handle Accepts Torx driver bits General Tool 620 440 2 Screwdriver handle extended length 10 5 to 12 inches Accepts Torx driver bits and 3 16 socket tip Used for removing the T 10 screws and 3 16 inch hex posts from the electrical and optical module slots Standard tool or Xcelite 99X10 V N S 48706 3 T 10 Torx tip Torx driver bit for T 10 size screw he...

Page 54: ...d tool 12 Coaxial cable connector tool Used to remove coaxial connectors from d subminiature connector housings Amp 58095 1 External Assemblies WARNING Before performing any procedure in this section disconnect the power cord from the line voltage source Failure to do so could cause serious injury or death Figure 4 1 External assemblies 4 6 DSA8300 Digital Serial Analyzer and Modules Service Manua...

Page 55: ...instrument using the Windows shut down process and then push the rear panel power switch or disconnect the AC power cord to remove power from the mainframe 2 Place the bottom of the instrument on the work surface with the rear facing you Locate the two line fuse caps and the AC power cord near the center of the rear panel 3 To remove line fuses Remove both fuse caps by turning them counterclockwis...

Page 56: ...he angled tip tweezers between the knob and front panel and use them to remove the knob See Figure 4 2 on page 4 8 c For replacement knob part numbers refer to the exploded view and replaceable parts table See Figure 5 3 on page 5 9 Figure 4 2 Knob removal CAUTION To prevent damage to the encoders located on the circuit board apply pressure to the backs of the encoders while pushing the knob on th...

Page 57: ...he tabs to clear the cover openings then pull out to remove the panels from the instrument 3 To remove the front panel trim a Hold the trim ring by its top edge and pull toward you to detach the three plastic snaps Alternatively you can use a flat bladed screwdriver or other small prying tool to help you detach the snaps b Swing the bottom of the ring up and off the front panel 4 To remove the acq...

Page 58: ...OTE All mounting screw holes are indicated by a star etched around the mounting hole a Place the rear of the instrument on the work surface with the front facing you b Remove the thirteen T 15 Torx drive screws that attach the covers to the top and both sides of the chassis See Figure 5 1 on page 5 5 c Remove the nine T 15 Torx drive screws that attach the covers to the bottom of the chassis d Pul...

Page 59: ...n Internal Assemblies Before removing internal assemblies you must remove the external assemblies See page 4 6 External Assemblies Figure 4 3 Internal assemblies DSA8300 Digital Serial Analyzer and Modules Service Manual 4 11 ...

Page 60: ... it catches d From the side insert the tip of a flat blade screwdriver directly above the USB port and below the Front Panel assembly There is a piece of flexible metal there that keeps the front panel from slipping over the USB port e Push up on the flexible piece of metal as you pull the Front Panel assembly forward and away from the instrument f Use the1 8 inch flat bladed screwdriver to carefu...

Page 61: ...e Figure 4 3 on page 4 11 See Figure 5 3 on page 5 9 a Remove the eight T 15 Torx drive screws that attach the Front Panel board to the Front Panel assembly b Pry the board up off the alignment studs Place a flat bladed screwdriver in the pry point access holes to pry the board up from the assembly c Remove the board from the assembly 3 To reinstall the Front Panel board Reverse the steps Verify t...

Page 62: ...om the Front Panel board See Figure 5 3 on page 5 9 3 To reinstall the front panel keypad Reverse the steps Make sure that the keypad is properly aligned on the Front Panel board and that the ribbon cable is routed correctly when installing the Front Panel in the chassis Refer to the cable connections table for information about where to connect cables See Table 5 1 Display Assembly You will need ...

Page 63: ... T 15 Torx drive screws that attach the Display assembly to the chassis c Hold the top and bottom edges of the Display assembly and pull forward far enough to allow access to the ribbon cable connector d Disconnect the J2 and J3 ribbon cables from the Display assembly CAUTION Do not set the Display assembly on a work surface Sliding the instrument over the edge of the work surface could break off ...

Page 64: ...ssembly removal Display Adapter Board You will need a T 15 Torx driver 1 To access the board remove these assemblies Display assembly See page 4 14 2 To remove the Display Adapter Board from the Display assembly a Disconnect the cables from the Display Adapter board See Figure 4 6 b Remove the four T 15 Torx drive screws that attach the Display Adapter board to the Display assembly See Figure 5 3 ...

Page 65: ...Removal and Installation Figure 4 6 Display adaptor board removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 17 ...

Page 66: ...of the Display assembly and is not individually customer replaceable If this component must be replaced you must return the instrument to Tektronix for repair See the Contacting Tektronix information at the front of this manual For reference refer to the exploded view See Figure 5 3 4 18 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 67: ...he front panel facing you b Detach the J1 cable c Remove the T 15 Torx drive screw d Pull the USB assembly toward you to detach it from the instrument 2 To reinstall the USB assembly Reverse the steps Refer to the cable connections table for information about where to connect cables See Table 5 1 Figure 4 8 USB assembly removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 19 ...

Page 68: ...See Figure 4 3 on page 4 11 d Remove the two thumbscrews from the front of the hard disk drive assembly e Hold the hard disk drive assembly and slide it out of the instrument 3 To remove the hard disk drive from the assembly See Figure 4 9 on page 4 21 a Remove the four 0 Phillips screws that fasten the hard disk drive to the cartridge b Carefully remove the hard disk drive from the cartridge 4 To...

Page 69: ...Removal and Installation Figure 4 9 Hard disk drive removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 21 ...

Page 70: ... on page 4 22 a Place the instrument bottom on the work surface with the front panel facing you b Remove the two Phillips screws that hold the CD RW DVD drive trim to the mounting frame and remove the trim c Place one thumb on each side of the front of the CD RW DVD drive and your forefingers on the back of the drive d Pull the drive straight toward you until the drive detaches from the CD HD inte...

Page 71: ...rive to the mounting frame b Remove the drive from the mounting frame 4 Detach the interface circuit board from the CD RW DVD drive 5 To reinstall the assembly Reverse the steps Refer to the cable connections table for information about where to connect cables See Table 5 1 Figure 4 11 CD RW DVD drive removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 23 ...

Page 72: ... T 15 Torx drive screws that attach the mounting frame to the ATX chassis c Remove the CDD HDD drive cable from the hard drive d Remove the CD RW DVD drive cable from the CD RW DVD drive e Hold both far side corners of the drive frame lift up and toward the rear of the instrument simultaneously f Gently shift the frame from side to side as you pull it to the rear until you can remove it completely...

Page 73: ...ain access to mechanical parts that are replaceable However the ATX circuit board is not customer replaceable and cannot be ordered from Tektronix NOTE If this circuit board or chassis must be replaced you must return the product to Tektronix for repair and calibration See the Contacting Tektronix information at the front of this manual DSA8300 Digital Serial Analyzer and Modules Service Manual 4 ...

Page 74: ...T 15 Torx drive screws that attach ATX assembly to the rear chassis d Hold the front edge of the ATX assembly and pull up on the assembly to disconnect the Riser Adapter from the edge connector of the PC Processor board e Detach the cable from the USB56 connector on the ATX board f Detach the cables from the following connectors on the Microprocessor board J183 J180 J410 and J510 g Remove the ATX ...

Page 75: ...Removal and Installation Figure 4 13 ATX assembly removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 27 ...

Page 76: ...face and the top panel facing you b Disconnect the ribbon cables from the Power PC board c Remove the ten T 15 Torx drive screws securing the Power PC board to the chassis support d Remove the two 3 16 inch securing nuts that attach the GPIB connector to the rear of the support bracket e Remove the two 3 16 inch securing nuts that attach the Video out connector to the rear of the support bracket f...

Page 77: ...Removal and Installation Figure 4 14 Power PC board removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 29 ...

Page 78: ...ful to align the connectors on the Side Power board with the connectors on the Low Voltage board and the Power PC board NOTE Make sure that the connectors on J11 J12 and J13 are fully seated and that the latches are engaged Reconnect the Power Side board to the Power PC board and the Low Voltage Power supply carefully making sure that all of the pins match up with the connectors and are fully seat...

Page 79: ...face b Disconnect the left and right fan cables from the left and right extender cables c Remove the two T 15 Torx drive screws that attach the fan assembly to the top main chassis d Lift the fan assembly up and out from the chassis 3 To reinstall the fan assembly Reverse the steps Be sure to connect the cable marked Left to the cable extender matched with J391 Connect the cable marked Right to th...

Page 80: ...Removal and Installation Figure 4 15 Fan assembly removal 4 32 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 81: ...t holds the cable in place To do so can cause EMI issues 2 Remove the low voltage power supply as follows a Set the instrument with the bottom on the work surface and the right side facing you b Disconnect J611 ribbon cable connector from the PC Processor board See Figure 5 4 c Remove the two T 15 Torx drive screws securing the low voltage power supply to the right side chassis support d Remove th...

Page 82: ...ain access to cables or mechanical parts that are customer replaceable Refer to the Replaceable Parts list to find part numbers of replaceable parts Removing a circuit board assembly to gain access to mechanical parts and then reinstalling the same circuit board assembly should not affect the board calibration if you are careful not to loosen or damage any parts CAUTION Use care not to loosen or d...

Page 83: ...Removal and Installation Figure 4 16 Acquisition System DSA8300 Digital Serial Analyzer and Modules Service Manual 4 35 ...

Page 84: ... threaded posts The large slot sampling module threaded posts are single threaded posts and the small slot sampling module posts are double threaded posts Installing the double threaded posts into the large module slot could damage the large module connector One of the nine T 10 Torx screws secures a 5 16 inch hex nut and grounding lug to the inside chassis When removing the top right T 10 Torx dr...

Page 85: ... the top down on the work surface and the instrument bottom facing you b Read all of the instructions and cautions in the Acquisition System section See page 4 34 Acquisition System c Remove parts as necessary to access the cable or mechanical part that you are going to replace See Figure 5 6 on page 5 15 See Figure 5 7 on page 5 16 See Figure 5 8 on page 5 17 See Figure 5 9 on page 5 18 3 To rein...

Page 86: ...4 4241 01 from J01 on the Electrical Front End board allowing the clip that holds the cable to remain in place CAUTION Do not remove the clip that holds the cable in place To do so can cause EMI issues 2 To remove the Electrical Front End assembly a Set the instrument with the top down on the work surface and the front facing you b Read all of the instructions and cautions in the Acquisition Syste...

Page 87: ... 4241 01 from J01 on the Electrical Front End board allowing the clip that holds the cable to remain in place CAUTION Do not remove the clip that holds the cable in place To do so can cause EMI issues 2 To remove the Optical Front End assembly a Place the instrument upside down on the work surface with the rear of the instrument facing you b Read all of the instructions and cautions in the Acquisi...

Page 88: ...ee page 4 10 Power Side board See Figure 5 3 Time Base assembly See page 4 37 Electrical Front End assembly See page 4 38 Optical Front End assembly See page 4 39 2 To remove the module doors a Place the Optical Front End chassis on the work surface so that you are looking into the chassis See Figure 4 18 b Use the angled tip tweezers to push in on one of the module door spring arms so that the sp...

Page 89: ...Removal and Installation Figure 4 18 Module slot door removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 41 ...

Page 90: ... the left side of the stud post b Place the ejector lever over the ejector spring and PEM nut standoffs pivot and slider NOTE Make sure the ejector lever is positioned correctly The ejector lever has a dimple protruding to accommodate the snap on handle When installing the ejector lever this dimple must be facing up from the optical chassis See Figure 4 19 c Place brass shoulder washers over both ...

Page 91: ...Removal and Installation Figure 4 19 Module ejector handles removal DSA8300 Digital Serial Analyzer and Modules Service Manual 4 43 ...

Page 92: ...Removal and Installation Figure 4 20 Spring arm position 4 44 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 93: ... chassis using the following instructions Removing the Cover NOTE The 80E07 80E08 80E09 and 80E10 Electrical Remote Sampling modules should not be disassembled Return the entire module assembly CAUTION Static discharge can damage any semiconductor in the instrument or sampling module Wear wrist and foot grounding straps while handling sampling modules Make sure that service is performed only in a ...

Page 94: ...ircuit board Hold the exposed module by the edges of the circuit board or the rear or front housings 1 Reinstall the chassis into the cover by reversing the removal procedure See page 4 45 Removing the Cover WARNING Do not install or remove any sampling modules while the instrument is powered on Electrical shock may occur Always power the instrument down before attempting to remove or insert any s...

Page 95: ...is a SYSTem PROTect OFF b SYSTem PROPerties CH 1 8 SERialnum serialNum_string Example SYST PROP CH3 SER B010123 NOTE For a 2 channel sampling module either channel can be specified in step b For an 80E01 sampling module use only the lower numbered channel number such as CH1 or CH3 c SYSTem PROTect ON 6 Verify the serial number change Pull down the Utility menu and then select System Properties Sam...

Page 96: ...from static discharge wear wrist and foot grounding straps while handling the module chassis Make sure that service is performed in a static free work station by a qualified service technician Minimize handling of static sensitive components 2 To remove the front panel See Figure 4 22 a Remove two coaxial terminators on the front panel connectors b Remove two screws that attach the front panel to ...

Page 97: ...s they apply a If installing a replacement front panel perform the following steps before installing the front panel Remove the backing from the front panel label Align the holes and attach the label to the new front panel b If installing a replacement cover perform the following steps before replacing the cover Remove the backing from the antistatic label Install the antistatic label to the repla...

Page 98: ...ossible cause s solutions Mainframe will not power on Power cord not plugged in Failed fuse Faulty power supply Faulty modules Main power switch rear panel not on Front panel power switch not on Monitor not connected properly Front panel light comes on mainframe powers on but one or more fans will not operate Faulty fan cable Defective fan assembly Faulty power supply Mainframe powers on but no si...

Page 99: ...nstalled fixed hard disk drive not configured as bootable slave master hard disk drive Faulty benchtop controller CD RW DVD related symptoms Defective CD RW DVD Defective CD RW DVD drive cable Diagnostic errors Remove all electrical and optical modules from the instrument then run diagnostics again If the instrument passes diagnostics check for the electrical and optical module that is causing the...

Page 100: ...Time Base assembly 80C0X modules poor noise performance Male fiber fiber connections need to be cleaned 80C0X modules frequency response exhibits a steep negative droop in its plot Bad internal O E RF amplifier de coupling Check tightness of all rigid cable interconnects BIOS error messages Refer to the BIOS error message table See Table 4 3 Instrument locks up Power off the instrument and then re...

Page 101: ...surement remove the sampling module and install it in another slot 4 Repeat steps 1 and 2 and then take the following action If the instrument successfully completes the measurement there is a good chance that the mainframe channel has failed Perform other mainframe diagnostics in this section If the instrument fails to complete the measurement there is a good chance the sampling module has failed...

Page 102: ...d the Electrical Front End board The Power Side board the ATX board and the Bridge board See Figure 4 3 on page 4 11 If you remove the ATX board you must jumper the debug power on pin This pin J401 is on the front of the Power Side board which faces to the inside of the instrument Locate the Force Power label on the back of the board which faces you and then reach around the edge of the board to j...

Page 103: ...the power supply voltages with the voltmeter and compare each reading to the values listed in the table If the voltages are within about 5 of the nominal voltages your power supply is functional For more information about the power supply refer to the description of the low voltage power supply See page 2 4 If the Instrument Will Not Boot If there is a display on the DVI I port but not on the LCD ...

Page 104: ...trument at every power on If any failures occur at power on the screen displays the calibration and diagnostics property page The power on tests verify that hardware is installed and can be accessed by the software The tests provide limited diagnostic information They do not provide any performance information The power on tests check the generic hardware including the keyboard mouse memory CPU an...

Page 105: ...tronix field office 6 Keyboard controller BAT test error Fatal error indicating a serious problem with the system Contact your Tektronix field office 7 General exception error Fatal error indicating a serious problem with the system Contact your Tektronix field office 8 Display memory error If the system video adapter is an add in card replace or reseat the video adapter If the video adapter is an...

Page 106: ...in the following table Table 4 4 Action required for assembly replaced Action required for assembly replaced Assembly replaced Adjustment required Software update required Front panel assembly No None Time Base board Yes None Optical Front End board Yes None Electrical Front End board Yes None Power PC board Yes Boot ROM and authorization code ATX processor assembly No Windows instrument applicati...

Page 107: ...efore generating or setting the key a Connect a PC with a GPIB interface to the GPIB interface of the instrument b Enter the following GPIB commands to install a new instrument model number SYST PROT OFF SYST PROP MAI MODE DSA8300 SYST PROT ON NOTE These commands take effect immediately c Enter the following GPIB commands to install a new instrument serial number SYST PROT OFF SYST PROP MAI SER se...

Page 108: ...ing carton with an industrial stapler or strapping tape Shipping to the Service Center 1 Contact the Service Center to get an RMA return material authorization number and any return or shipping information you may need 2 If the instrument is being shipped to a Tektronix Service Center enclose the following information The RMA number The owner s address Name and phone number of a contact person Typ...

Page 109: ...Replaceable Parts List ...

Page 110: ......

Page 111: ... part number Module Servicing Modules can be serviced by selecting one of the following three options Contact your local Tektronix service center or representative for repair assistance Module exchange In some cases you may exchange your module for a remanufactured module These modules cost significantly less than new modules and meet the same factory specifications For more information about the ...

Page 112: ...ll serial numbers 5 Qty This indicates the quantity of parts used 6 Name Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification Abbreviations Abbreviations conform to American National Standard ANSI Y1 1 1972 Exploded Views The i...

Page 113: ...em 2 POWER PC J611 ELECTRICAL FRONT END J01 174 4241 01 See Figure 5 3 FRONT PANEL J1 POWER PC J150 174 4321 00 See Figure 5 3 GATED TRIG TIME BASE J11 174 4348 00 See Figure 5 6 Item 17 POWER PC J182 ATX USB78 174 4808 00 See Figure 5 4 Item 5 POWER PC J183 ATX F PANEL 174 4807 00 See Figure 5 4 Item 4 POWER SIDE J10 ATX P4 PWR 174 4798 00 See Figure 5 3 POWER SIDE J11 TIME BASE J1 174 5624 00 Se...

Page 114: ...X 20 MM 6 3A 250 V FAST BLOW HIGH BREAKING CAPACITY 200 2264 00 2 CAP FUSEHOLDER 3AG FUSES AMERICAN 8 200 2265 00 2 CAP FUSEHOLDER 5 X 20MM FUSES EUROPEAN 9 200 4522 00 1 RIGHT SIDE TRIM BLUE 10 407 4887 00 1 BRACKET HANDLE BASE PC ABS ALLOY BLUE 11 212 0232 00 2 SCREW MACHINE 8 32 X 1 125L PNH STL BLACK OXIDE T 20 12 367 0528 00 1 HANDLE CARRYING POLYPROPYLENE VINYL GRIP SECTION 13 200 5117 00 1 ...

Page 115: ...Replaceable Parts List Figure 5 1 External parts DSA8300 Digital Serial Analyzer and Modules Service Manual 5 5 ...

Page 116: ...CHINE 6 32 X 0 312 L PNH STL CAD PLT T15 6 441 2636 00 1 CHASSIS DRIVE FRAME BOTTOM 7 211 0950 00 2 SCREW MACHINE M2X 4X3L PHL PNH STL NI PL 8 407 5288 00 1 BRACKET DVD CD RW SATA ADAPTER FOR SLIMLINE 9 211 0738 00 2 SCREW MACHINE 6 32 X 0 625 PNH STL BLK ZI TORX 10 200 5079 00 1 COVER CD 11 065 0807 01 1 DISK DRIVE OPTICAL CD RW DVD R RW 16 7 MB SEC 650MEG 8 5GIG SATA ATAPI 12 174 5650 00 1 CA AS...

Page 117: ...Replaceable Parts List Figure 5 2 Drives DSA8300 Digital Serial Analyzer and Modules Service Manual 5 7 ...

Page 118: ...BLE POWER 24 CONDUCTOR 5 IN 11 679 5660 00 1 CIRCUIT BD ASSY USB 12 679 6297 00 1 CIRCUIT BD ASSY FRONT PANEL 13 260 2724 01 1 SWITCH KEYPAD ELASTOMERIC FRONT PANEL 14 366 0770 00 3 KNOB CAP 0 925 DIA 15 366 0771 00 2 KNOB CAP SILVER GRAY 0 650 DIA X 0 520 H 16 366 0772 00 3 KNOB CAP SIVER GRAY 0 425 DIA X 0 520 H 17 333 4642 00 1 FRONT PANEL BRACKET 18 650 5304 00 1 LCD MODULE ASSEMBLY INCLUDES D...

Page 119: ...Replaceable Parts List Figure 5 3 Front panel and processors DSA8300 Digital Serial Analyzer and Modules Service Manual 5 9 ...

Page 120: ...lacement is needed 7 1 BATTERY DRY 3 0 V LITHIUM MANGANESE DIOXIDE COINCELL CR2032 8 679 6477 00 1 CIRCUIT BD ASSY BRIDGE 9 174 4798 00 1 CA ASSY 4 PIN P4 POWER 10 174 4348 00 1 CA ASSY RF COAXIAL 50 OHM 11 119 7333 00 1 P4 LGA775 FAN SINK BRACKET FROM AVC SAFETY CONTROLLED 12 1 PROCESSOR INTEL CORE 2 DUO 3 0 GHZ W O FAN HEATSINK Contact Tektronix if replacement is needed 13 174 4797 00 1 CA ASSY ...

Page 121: ...Replaceable Parts List Figure 5 4 ATX assembly DSA8300 Digital Serial Analyzer and Modules Service Manual 5 11 ...

Page 122: ... MACH 6 32 X 0 312 L PNH T15 4 131 8257 00 1 CONN PANEL MOUNT BNC TO MCX 5 131 0850 00 2 CONN JACK RF SMA FEED THRU DUAL FEMALE STR 50 OHM 0 25 MTG W 0 375 HEX 0 59 X 0 24 MLG 6 210 0457 00 1 NUT PL ASSEM WA 6 32 X 0 312 W LCKWSHR 7 210 0465 00 1 NUT PLAIN HEX 0 25 32 X 0 375 8 650 4086 00 1 CA ASSEMBLY ELECT ANTI STATIC 9 210 1443 00 1 WASHER FLAT 0 25 ID X 0 375 OD X 0 265 10 136 0140 00 1 JACK ...

Page 123: ...Replaceable Parts List Figure 5 5 Power supply DSA8300 Digital Serial Analyzer and Modules Service Manual 5 13 ...

Page 124: ...267 00 1 CIRCUIT BD ASSY TIME BASE 16 174 5818 00 1 CA ASSY RIBBON 60 POS 4 5 LONG 17 174 4348 00 1 CA ASSY RF COAXIAL 50 OHM MCX RTANG PLUG 50 OHM TO MCX RTANG PLUG 50 OHM 18 214 5236 00 1 COVER THERMAL PAD 19 342 1207 00 1 PAD THERMAL 100 THK 3 W MK 20 174 5800 00 2 CA ASSEMBLY COAX STR SMA JACK TO STR SMP PLUG 21 129 1610 00 2 SPACER POST 1 4 STANDOFF 1 4 HEX 6 32 MALE FEMALE 937 LONG 22 441 25...

Page 125: ...Replaceable Parts List Figure 5 6 Acquisition system DSA8300 Digital Serial Analyzer and Modules Service Manual 5 15 ...

Page 126: ...umber Serial number effective Serial number discont d Qty Name description 5 7 1 174 5823 00 2 CA ASSY RF MCX TO MCX 2 METERS TIME BASE DELAY CABLE 2 174 5822 00 2 CA ASSY RF MCX TO MCX 1 METER TIME BASE DELAY CABLE Figure 5 7 Time base delay cables 5 16 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 127: ...ktronix part number Serial number effective Serial number discont d Qty Name description 5 8 1 174 4882 00 5 CA ASSY RF D SUB TO MCX STROBE 9 700 L 2 174 4137 00 5 CA ASSY RF COAXIAL 15 0L 50 OHM D SUB Figure 5 8 Electrical front end cables DSA8300 Digital Serial Analyzer and Modules Service Manual 5 17 ...

Page 128: ...ektronix part number Serial number effective Serial number discont d Qty Name description 5 9 1 174 4882 00 2 CA ASSY RF D SUB TO MCX STROBE 9 700 L 2 174 4137 00 2 CA ASSY RF COAXIAL 15 0L 50 OHM D SUB Figure 5 9 Optical front end cables 5 18 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 129: ... 80E01 6 366 0804 00 2 KNOB PUSH BUTTON 0 11 OD 0 33L DELRIN GRAY 80E02 80E03 80E04 7 211 0087 00 2 SCREW MACHINE 2 56 X 0 188 FLH 82 DEG SST POZ 8 214 4081 00 1 MTG SCR LOCKDWN ALUMINUM 9 380 1132 00 1 HOUSING SAMPLING HEAD AL 80E02 10 333 4340 00 1 PANEL FRONT ALUMINUM CHROMATE W TEK SILVERGRAY 335 0151 00 1 MARKER IDENT LABEL 0 010 POLY W ADHESIVE 80E02 335 0152 00 1 MARKER IDENT LABEL 0 010 PO...

Page 130: ...Replaceable Parts List Figure 5 10 80E01 80E02 80E03 and 80E04 modules 5 20 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 131: ...AL MODULE 0 050 AL 2 335 0370 00 1 MARKER IDENT ANTI STATIC LABEL 12 SCREW MACHINE 4 40 X 0 250 PNH STL CD PLT T10 3 211 0373 00 13 SCREW MACHINE 4 40 X 0 250 PNH STL CD PLT T10 OPTION 10G 4 105 1115 00 2 LATCH ADJUSTABLE GRIP 5 TERM RF SMA PLUG STR SST 5 011 0176 00 6 TERM RF SMA PLUG STR SST OPTION 10G Figure 5 11 80E05 module Option 10G shown DSA8300 Digital Serial Analyzer and Modules Service ...

Page 132: ...ING HEAD ALUMINUM 80E06 SAFETY CONTROLLED 2 211 0087 00 2 SCREW MACHINE 2 56 X 0 188 FLH 82 DEG SST POZ 3 1 PANEL FRONT NSD HEADS BLANK 386 5603 00 80E06 4 335 0863 00 1 MARKER IDENT SAMPLING HEAD 2 760 X 0 810 0 010 POLY W ADHESIVE 80E06 SAFETY CONTROLLED 5 211 0088 00 4 SCREW MACHINE 2 56 X 0 281 FLH 82 DEG STL BK OXD POZ Figure 5 12 80E06 module 5 22 DSA8300 Digital Serial Analyzer and Modules ...

Page 133: ... Serial number effective Serial number discont d Qty Name description 5 13 1 011 0176 00 2 TERM RF SMA PLUG STR SST W BEAD CHAIN 2 011 0157 00 2 ADAPTER RF PRCN 2 4MM OR 1 85 MM MALE TO 2 92 MM FEMALE 80E08 AND 80E10 ONLY Figure 5 13 80E07 80E08 80E09 and 80E10 modules DSA8300 Digital Serial Analyzer and Modules Service Manual 5 23 ...

Page 134: ...on 5 14 1 200 4568 00 1 COVER OPTICAL MODULE 0 050 AL 2 335 0370 00 1 MARKER IDENT ANTI STATIC LABEL 0 005 POLY 3 211 0373 00 7 SCREW MACHINE 4 40 X 0 250 PNH STL CD PLT T10 4 105 1115 00 2 LATCH ADJUSTABLE GRIP 16 10 511 16 5 200 4104 00 1 CAP DUST ELAY M75 M80 SHORE BLACK MATT TEXTURED Figure 5 14 Optical modules 5 24 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

Page 135: ... 015 1022 01 1 TERMINATOR COAXIAL 50 OHM 0 5W SMA 5 335 0370 00 1 MARKER IDENT ANTI STATIC LABEL 0 005 POLY 6 211 0088 00 8 SCREW MACHINE 2 56 X 0 281 FLH 82 DEG STL BK OXD POZ 7 380 1151 00 1 HOUSING SAMPLING MODULE TRIGGER PRESCALE LIMITING PREAMP 8 211 0087 00 2 SCREW MACHINE 2 56 X 0 188 FLH 82 DEG SST POZ 9 333 4392 00 1 PANEL FRONT TRIGGER PRESCALE LIMITING PREAMP AL ALLOY 10 335 0485 00 1 M...

Page 136: ...4 1838 00 1 SHAFT SCREW LOCKDOWN 303 SST R05HDSCR 4 391 0239 00 1 LOCK SCREW MOUNTING BLOCK 5 335 0370 00 1 MARKER IDENT ANTI STATIC LABEL 6 211 0087 00 3 SCREW MACH 2 56 X 0 188 FLH POZ 7 380 1171 00 1 HOUSING SAMPLING HEAD ALUMINUM 8 333 4476 00 1 PANEL FRONT PHASE REF MODULE 9 335 1036 00 1 MARKER IDENT LABEL 82A04 MODULE 10 015 1022 01 1 TERMINATOR COAXIAL 50 OHM 0 5W SMA Figure 5 16 82A04 mod...

Page 137: ... 0239 00 1 LOCK SCREW MOUNTING BLOCK 5 335 0370 00 1 MARKER IDENT ANTI STATIC LABEL 0 005 POLY 6 211 0087 00 2 SCREW MACHINE 2 56 X 0 188 FLH 82 DEG SST POZ 7 380 1159 00 1 HOUSING SAMPLING HEAD ALUMINUM SAFETY CONTROLLED 8 1 PANEL FRONT PATTERN TRIGGER 9 335 1317 00 1 MARKER IDENT LABEL MKD 80A06 PATTERN TRIGGER MODULE 2 760 X 810 LEXAN 10 3 CLIP SMA CONNECTOR FOR TERMINATION W CHAIN POLYPROPYLEN...

Page 138: ...Replaceable Parts List Figure 5 17 80A06 module 5 28 DSA8300 Digital Serial Analyzer and Modules Service Manual ...

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