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Tektronix B MSO 6 Series, Manual

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Tektronix B MSO 6 Series Manual Download Page 12

Theory of operation

This chapter describes the electrical operation of the oscilloscope to the module level. The block diagram shows the
oscilloscope module interconnections.

Figure 1: 6 Series B MSO block diagram

Power supply

The Power Supply board converts AC line voltage to +12 V to power for all internal circuits.

Carrier interface assembly

The Carrier interface assembly contains the following functions:

Theory of operation

6 Series B MSO MSO64B, MSO66B, MSO68B Service

2

Summary of Contents for B MSO 6 Series

Page 1: ...6 Series B MSO MSO64B MSO66B MSO68B Service Supports Product Firmware V1 0 and above Register now Click the following link to protect your product www tek com register 077 1696 00...

Page 2: ...ued 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...

Page 3: ...r 4 Maintenance 5 Preventing ESD 5 Inspection and cleaning 5 Exterior cleaning other than display 5 Flat panel display cleaning 6 Interior cleaning 6 Lubrication 7 Returning the instrument for service...

Page 4: ...instrument firmware 24 After power supply module replacement 25 Replaceable parts 26 Parts ordering information 26 Module servicing 26 Abbreviations 26 Using the replaceable parts list 26 Front cover...

Page 5: ...e 4 Front cover and rear case exploded view 27 Figure 5 Carrier interface board and rear chassis exploded view 29 Figure 6 Rear chassis baffle and power supply exploded view 31 Figure 7 Mid plane chas...

Page 6: ...able 4 Failure symptoms and possible causes 20 Table 5 Parts list column descriptions 26 Table 6 Front cover and rear case 28 Table 7 Carrier interface board and rear chassis 29 Table 8 Rear chassis b...

Page 7: ...en incorporating this equipment into a system the safety of that system is the responsibility of the assembler of the system To avoid fire or personal injury Use proper power cord Use only the power c...

Page 8: ...ion may occur if a unit is moved from a cold to a warm environment Do not operate in an explosive atmosphere Keep product surfaces clean and dry Remove the input signals before you clean the product P...

Page 9: ...rating Inspect the probe and accessories Before each use inspect probe and accessories for damage cuts tears or defects in the probe body accessories or cable jacket Do not use if damaged Ground refer...

Page 10: ...d the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the product When this symbol...

Page 11: ...any specific product designation applies to all products in the manual Replaceable parts This manual refers to any field replaceable assembly or mechanical part specifically by its name or generically...

Page 12: ...oscilloscope module interconnections Figure 1 6 Series B MSO block diagram Power supply The Power Supply board converts AC line voltage to 12 V to power for all internal circuits Carrier interface ass...

Page 13: ...in memory The signal enters a channel input and then passes through an attenuator and preamplifier The analog signal from each preamplifier goes through a digitizer and then into acquisition memory Th...

Page 14: ...ek com product support enter the manual part number with no dashes in the field click GO and then select the Specification and Performance Verification document to download If your organization requir...

Page 15: ...It also describes how to clean the exterior and interior of the instrument Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent instrument...

Page 16: ...urface cleaners to clean the display Do not spray liquids directly on the display surface Do not scrub the display with excessive force CAUTION To prevent getting moisture inside the instrument during...

Page 17: ...ed solder on leads or terminals Wiring and cables Loose plugs or connectors Burned broken or frayed wiring Firmly seat connectors Replace defective cables Chassis Dents deformations and damaged hardwa...

Page 18: ...a T 10 or T 8 Torx screwdriver tip Table 3 Required equipment for removal and replacement Item No Name Description 1 Screwdriver handle Accepts Torx driver bits 2 T 10 Torx tip Used for removing inst...

Page 19: ...d drive door from the bottom of the instrument 3 Remove the three T 10 Torx screws securing the SATA riser board bracket assembly to the chassis 4 Remove the SATA riser board bracket assembly from bot...

Page 20: ...e handle from the pins on the couplers and remove the handle 3 Remove the two couplers 4 To reinstall reverse the steps Use a screwdriver with T 10 Torx tip to secure the screws Tighten to 0 65 N m Re...

Page 21: ...e front chassis assembly using the following steps Procedure 1 Use a screwdriver with a with T 10 Torx tip to remove the 19 screws securing the rear chassis to the front chassis There are five screws...

Page 22: ...mbly on page 11 About this task Steps Procedure 1 Set the rear chassis with the rear side down CAUTION Position the chassis carefully to prevent damage to the BNCs 2 Remove the twelve T 10 Torx screws...

Page 23: ...power supply to the carrier interface assembly AFG riser board and AC line filter 2 Use a T 10 Torx bit screwdriver to remove the four screws securing the power supply assembly to the chassis Tighten...

Page 24: ...lling Make sure black cables dress cleanly through the side slot and do not get pinched between the power supply bracket and rear chassis when reinstalling the power supply assembly Install new tie do...

Page 25: ...bracket on page 12 About this task Steps Procedure 1 Use a T 10 Torx screwdriver to remove the screw between the BNC connectors on the rear panel of the chassis Use a 3 16 inch open end wrench to rem...

Page 26: ...screwdriver to remove the eight screws on the bottom of the chassis 5 Use a T 8 Torx screwdriver to remove the two screws on the top front edge of the of the carrier interface chassis Maintenance 6 Se...

Page 27: ...trument for repairs at a Tektronix Service Center Before you begin Prerequisites To prevent electrostatic damage to components whenever you work on the instrument wear properly grounded electrostatic...

Page 28: ...river Two screws will be removed for each hub assembly 2 To reinstall reverse the steps Use a screwdriver with a T 10 Torx tip to tighten the screws to 0 65 N m Remove the main fan assembly Use this p...

Page 29: ...solate faults to a module This section requires that service personnel have the appropriate skills to work on this instrument including PC troubleshooting and Microsoft Windows operating system skills...

Page 30: ...inux SSD is a defective drive Flat panel display blank or has streaks in display Faulty LCD screen or video circuitry Equipment required Digital voltmeter to check power supply voltages 0 1 inch spaci...

Page 31: ...ng tree Status LEDs A set of six bi color LEDs report the power management status of the instrument These LEDs are located under the cover on the bottom of the instrument Maintenance 6 Series B MSO MS...

Page 32: ...d Before you begin Prerequisites To prevent electrostatic damage to components whenever you work on the instrument wear properly grounded electrostatic prevention wrist and foot straps and work in a t...

Page 33: ...ice Center for repair Warning Be careful when measuring the AC line voltage to avoid injury to yourself or damage to the instrument 3 If there is 12 V DC at pin 10 of the disconnected J3203 cable do t...

Page 34: ...ix Service Center for repair Export log files Log files are useful by Tektronix in troubleshooting the instrument If needed you can download the log files using this procedure 1 Insert a USB drive int...

Page 35: ...ekScope program before updating the firmware b Insert the USB drive into any instrument USB Host port c Open the Windows desktop File Explorer and navigate to and select the install file d Run the fir...

Page 36: ...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 c...

Page 37: ...continued No entry indicates the part is good for all 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 Becaus...

Page 38: ...TION SERVICE CHINA SIMPLIFIED CHINESE 335 3854 XX 1 MARKER IDENTIFICATION SERVICE OTHER ENGLISH 7 050 3904 XX 1 KIT SERVICE REPLACEMENT KIT METAL HANDLE W PLASTIC GRIP AND HARDWARE MSO5 MSO6 SERIES 8...

Page 39: ...ion Figure 5 Carrier interface board and rear chassis exploded view on page 29 1 211 1584 XX 22 SCREW MACHINE M3 X 0 5 X 6MM PAN HEAD TORX T10 2 119 8863 XX 2 FAN ASSEMBLY 119864200 W TERMINATION SAFE...

Page 40: ...119 8639 XX 1 FAN ASSEMBLY 119864000 W TERMINATION SAFETY CONTROLLED 16 361 1883 XX 4 SPACER RND 6MM OD X 3 2MM ID X 25MMLG 17 065 1064 XX 1 MODULE ASSY SERVICE REPLACEMENT 8781722XX CARRIER BOARD ASS...

Page 41: ...baffle and power supply Index number Tektronix part number Serial no effective Serial no discont d Qty Name description Figure 6 Rear chassis baffle and power supply exploded view on page 31 1 407 622...

Page 42: ...HINE M3 X 0 5 X 6MM PAN HEAD TORX T10 6 174 6612 XX 1 CABLE POWER PWR SUP TO CARRIER SAFETY CONTROLLED 7 174 6613 XX 1 CABLE PS TO CARRIER SIGNALS 2X6 DISCRETE 100 CTRS LATCHING SAFETY CONTROLLED 8 17...

Page 43: ...ELECTRICALLY CONDUCTIVE PSA 4 870 1386 XX 1 CIRCUIT BRD ASSY MAIN 8781386XX TESTED WITH PACKAGING MSO6XB Return the instrument to Tektronix for service 5 214 5483 XX 1 HEATSINK HEATPIPE Return the ins...

Page 44: ...ront panel and display Index number Tektronix part number Serial no effective Serial no discont d Qty Name description Figure 8 Front panel and display exploded view on page 34 1 065 1073 XX 1 MODULE...

Page 45: ...ce 9 211 1585 XX 39 SCREW 3 X 0 5 X 8 0 THREAD FORMING PAN HEAD TORX T10 10 174 6879 XX 1 CABLE PICO LOCK 10 PIN Return the instrument to Tektronix for service 11 441 2926 00 1 CHASSIS FRONT Return th...

Page 46: ...1705 xx 1 LOCK WASHER 6 5MM ID X12 14MM OD 18 220 0343 xx 1 NUT HEX PLAIN 1 4 36 UNS 2B X 10MMX5 56MM THICK 19 131 9410 XX 1 CONNECTOR RECEPTACLE GROUND JACK Return the instrument to Tektronix for se...

Page 47: ...6B 335 3676 XX 1 MARKER IDENTIFICATION LABEL FRONT PANEL MSO 8 CHANNEL SAFETY CONTROLLED MSO68B 29 366 0946 XX 1 ASSEMBLY KNOB PAN WITH OVERMOLD 30 358 0890 XX 1 BUSHING SPACER RING JOG SHUTTLE 31 366...

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