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Theory of operation

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

Note: A removable Embedded OS drive comes standard on instruments with a serial number of B020000 and above or C040000
and above.

Figure 1: 5 Series MSO block diagram

Power supply

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

Theory of operation

5 Series MSO Service Manual MSO54, MSO56, MSO58

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Содержание 5 Series

Страница 1: ...5 Series MSO Service Manual MSO54 MSO56 MSO58 Register now Click the following link to protect your product www tek com register P077130704 077 1307 04 ...

Страница 2: ...sued 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 8...

Страница 3: ... 14 Maintenance 15 Preventing ESD 15 Inspection and cleaning 15 Exterior cleaning other than display 15 Flat panel display cleaning 16 Interior cleaning 16 Lubrication 17 Returning the instrument for service 17 Removal and replace procedures 18 Required equipment 18 Remove front panel knobs 18 Remove SATA riser board assembly 19 Remove feet 19 Remove handle 20 Remove rear grill and case 20 Remove ...

Страница 4: ... updates 33 After power supply module replacement 34 Replaceable parts 35 Parts ordering information 35 Module servicing 35 Abbreviations 36 Using the replaceable parts list 36 Front cover and rear case 37 Carrier interface board and rear chassis 39 Baffle and power supply module 42 Mid plane chassis 44 Front panel and display 46 Table of Contents 5 Series MSO Service Manual MSO54 MSO56 MSO58 4 ...

Страница 5: ... 4 Front cover and rear case exploded view 37 Figure 5 Carrier interface board and rear chassis exploded view 39 Figure 6 Rear chassis baffle and power supply exploded view 42 Figure 7 Mid plane chassis exploded view 44 Figure 8 Front panel and display exploded view 46 List of Figures 5 Series MSO Service Manual MSO54 MSO56 MSO58 5 ...

Страница 6: ... 18 Table 4 Failure symptoms and possible causes 30 Table 5 Parts list column descriptions 36 Table 6 Front cover and rear case 37 Table 7 Carrier interface board and rear chassis 39 Table 8 Baffle and power supply module 42 Table 9 Mid plane chassis 44 Table 10 Front panel and display 46 List of Tables 5 Series MSO Service Manual MSO54 MSO56 MSO58 6 ...

Страница 7: ...ry Use proper power cord Use only the power cord specified for this product and certified for the country of use Do not use the provided power cord for other products Ground the product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminal...

Страница 8: ...ation Slots and openings are provided for ventilation and should never be covered or otherwise obstructed Do not push objects into any of the openings Provide a safe working environment Always place the product in a location convenient for viewing the display and indicators Avoid improper or prolonged use of keyboards pointers and button pads Improper or prolonged keyboard or pointer use may resul...

Страница 9: ...e safety summary section contains additional information required to safely perform service on the product Only qualified personnel should perform service procedures Read this Service safety summary and the General safety summary before performing any service procedures To avoid electric shock Do not touch exposed connections Do not service alone Do not perform internal service or adjustments of t...

Страница 10: ...be sure to consult the manual to find out the nature of the potential hazards and any actions which have to be taken to avoid them This symbol may also be used to refer the user to ratings in the manual The following symbols may appear on the product Important safety information 5 Series MSO Service Manual MSO54 MSO56 MSO58 10 ...

Страница 11: ...y 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 as a replaceable part In general a replaceable part is any circuit board or assembly such as the hard disk drive or a mechanical part such as the I O port connectors that is listed in the replaceable p...

Страница 12: ...e interconnections Note A removable Embedded OS drive comes standard on instruments with a serial number of B020000 and above or C040000 and above Figure 1 5 Series MSO block diagram Power supply The Power Supply board converts AC line voltage to 12 V to power for all internal circuits Theory of operation 5 Series MSO Service Manual MSO54 MSO56 MSO58 12 ...

Страница 13: ...signal path and ends with a digitized signal 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 The analog signal from each preamplifier is also distributed to a trigger circuit Front end All of the analog and digital inputs are routed to the Front end ...

Страница 14: ...k 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 requires periodic calibration a general rule is to verify performance and make adjustments only if needed every 2000 hours of operation or once a year if the instrument is used infrequently Adjustment after ...

Страница 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 malfunction and enhance its reliability Preventive maintenance consists of visually inspecting and cleaning the instrument and using general care when operating it How often to perform maintenance dep...

Страница 16: ...or instrument Interior cleaning You can only clean the interior of the rear chassis assembly To access the rear chassis assembly see the Removal and Installation Procedures topics Do not disassemble or clean the front chassis assembly other than cleaning the front panel display and removing panel knobs Disassembling the front chassis assembly requires that the instrument be returned to your neares...

Страница 17: ... required for this instrument Returning the instrument for service When repacking the instrument for shipment use the original packaging If the packaging is unavailable or unfit for use contact your local Tektronix representative to obtain new packaging Seal the shipping carton with an industrial stapler or strapping tape Before returning the instrument for service contact the Service Center to ge...

Страница 18: ...re before disassembling the instrument for cleaning Required equipment Most assemblies in this instrument can be removed with a T 10 or T8 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 instrument screws Torx driver bit for T 10 size screw heads 3 T 8 Torx tip Used ...

Страница 19: ...tom of chassis 5 To remove the SATA riser board remove the two T 10 Torx screws securing the SATA riser board to the riser bracket 6 To reinstall reverse the steps Tighten the T 10 Torx screws to 0 65 N m Remove feet Use this procedure to remove and replace bottom feet assemblies or gain access to the rear chassis assembly Before you begin To prevent electrostatic damage to components whenever you...

Страница 20: ...6 index 10 using the following steps Procedure 1 Use a screwdriver with T 8 Torx tip to remove the six screws securing the grill to the rear case table 6 index 15 2 Put fingers in handle hub holes on each side of the grill and pull the grill off of the rear case 3 Use a screwdriver with T 10 Torx tip to remove the six screws securing the rear case to the rear chassis table 6 index 9 4 Slide the re...

Страница 21: ...ere are five screws each along the top and bottom and four screws on each side 4 Insert a large flat blade screwdriver no more than 1 4 inch into a rectangular slot on the corner of the rear chassis see following image Rotate the screwdriver to lift the corner of the rear chassis from the front chassis Repeat on each corner There may be a little resistance from the front right corner of the bottom...

Страница 22: ...of the chassis 4 To reinstall reverse the steps Note the tabs that must fit into the side of the chassis and the registration bumps along the right edge of the main fan assembly Install the yellow marked screw last Use a T 10 Torx screwdriver to tighten the screws to 0 65 N m Remove the power supply assembly Use this procedure to remove and replace the power supply assembly Before you begin To pre...

Страница 23: ... power supply assembly from the rear chassis 4 Disconnect the three power supply cables from the power supply board 5 Remove the fan from the four elastic retaining grommets that secure the fan to the bracket To reinstall the fan use needle nose pliers to pull the grommet ends through the fan mounting holes Maintenance 5 Series MSO Service Manual MSO54 MSO56 MSO58 23 ...

Страница 24: ...e the carrier interface assembly Before you begin 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 tested antistatic environment on an antistatic mat Remove SATA riser board assembly on page 19 Remove rear chassis assembly on page 20 Remove the baffle bracket on page 22 About this t...

Страница 25: ...ting the power supply to the carrier interface assembly and the white cable on the AFG riser board You do not need to disconnect the AC line filter cables 3 Disconnect fan cable Maintenance 5 Series MSO Service Manual MSO54 MSO56 MSO58 25 ...

Страница 26: ...e the AFG riser assembly Use this procedure to remove and replace the AFG riser assembly from the carrier interface assembly Only use this procedure as part of the sanitize process before sending the instrument for repairs at a Tektronix Service Center Before you begin To prevent electrostatic damage to components whenever you work on the instrument wear properly grounded electrostatic prevention ...

Страница 27: ... right handle hub assemblies from the inside walls of the chassis using a T 10 Torx bit screwdriver 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 procedure to remove and replace the main fan from the rear chassis Before you begin To prevent electrostati...

Страница 28: ...carrier interface assembly on page 24 Remove the AFG riser assembly on page 26 About this task Removing the M 2 memory board sanitizes the instrument ensuring that user settings and acquisition data are no longer on the instrument Removing the M 2 board also removes the instrument calibration constants and any option licenses that you have installed Note The M 2 memory board is only in instruments...

Страница 29: ... the five T 8 Torx screws on the carrier board heat sink Tighten to 0 45 N m 9 Reassemble the instrument and return it to the nearest Tektronix Service Center for replacement of the M 2 SSD board and recalibration Troubleshooting 5 Series MSO CAUTION Before performing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at the beginning of thi...

Страница 30: ...r cord not plugged in Faulty power supply Defective micro controller assembly Instrument powers on but one or more fans will not operate Faulty fan power cable Fan power cable not connected to circuit board Defective fan Faulty power supply One or more defective point of load regulators Instrument with Option 5 WIN external Windows 10 OS SSD doesn t boot up but removing the Opt 5 WIN drive lets th...

Страница 31: ...ion for a fault condition Figure 2 Primary troubleshooting 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 5 Series MSO Service Manual MSO54 MSO56 MSO58 31 ...

Страница 32: ...ever you work on the instrument wear properly grounded electrostatic prevention wrist and foot straps and work in a tested antistatic environment on an antistatic mat Remove rear chassis assembly on page 20 Remove the baffle bracket on page 22 Procedure 1 Connect the power cord to the AC connector on the back of the rear chassis 2 Measure for 12 V DC between chassis and pin 10 of J3203 large conne...

Страница 33: ...assis ground and pins 1 through 4 and pins 11 through 15 on J3203 If all these pins have 12 VDC present then the power supply is working correctly Disconnect the AC power cord reassemble the instrument and return the instrument to a Tektronix Service Center for repair Instrument self tests The instrument runs self test diagnostics during every power on The power on self tests ensure that the hardw...

Страница 34: ...ed version 5 Series MSO Embedded OS Firmware VX X 7 Click Download File to start the download 8 When done downloading unzip the downloaded file 9 Open the file install txt and follow the instructions in the file After power supply module replacement After removal and replacement of the power supply module you must perform the Performance Verification procedures found in the Specifications and Perf...

Страница 35: ...pplicable 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 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 ...

Страница 36: ...lustrations 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 was discontinued No entry indicates the part is good for all serial numbers 5 Qty This indicates the quantity of parts used 6...

Страница 37: ... Qty Name description Figure 4 on page 37 1 016 2106 XX 1 CASE ACCESSORY FRONT COVER 2 200 5406 XX 1 COVER FRONT PROTECTIVE 3 065 1078 XX 1 MODULE ASSY SERVICE REPLACEMENT KIT HANDLE HUB LEFT RIGHT SET 4 202 0521 XX 1 CASE REAR SAFETY CONTROLLED 5 220 0325 XX 6 INSERT 2 5MM SNAP IN Table continued Replaceable parts 5 Series MSO Service Manual MSO54 MSO56 MSO58 37 ...

Страница 38: ...C GRIP AND HARDWARE 8 378 0952 XX 1 GRILL COSMETIC REAR SAFETY CONTROLLED 9 211 1573 XX 6 SCREW CAPTIVE M2 5 X 45 X 14 FLAT HEAD TORX T8 W DOGPOINT 10 105 1186 XX 2 HOOK CORD WRAP SAFETY CONTROLLED 11 376 0256 XX 2 COUPLER HUB HANDLE SAFETY CONTROLLED 12 211 1610 XX 4 SCREW MACHINE M3 X 0 5 X 16 FLAT HEAD STL TORX 10 13 211 1584 XX 12 SCREW MACHINE M3 X 0 5 X 6MM PAN HEAD TORX T10 14 214 5526 XX 2...

Страница 39: ...ard and rear chassis Index number Tektronix part number Serial no effective Qty Name description Figure 5 on page 39 1 211 1584 XX 22 SCREW MACHINE M3 X 0 5 X 6MM PAN HEAD TORX T10 2 119 8641 XX 1 FAN ASSEMBLY 119864200 W TERMINATION SAFETY CONTROLLED Table continued Replaceable parts 5 Series MSO Service Manual MSO54 MSO56 MSO58 39 ...

Страница 40: ...L ZINC PLATED 10 119 8742 XX 1 FILTER EMI AC LINE FILTER 10 0A 120 250VAC DC 400 HZ IEC INPUT FAST ON SOLDER LUG OUTPUT CHASSIS MOUNT FN9244R10 06 SAFETY CONTROLLED 11 335 3420 XX 1 LABEL REAR IO SAFETY CONTROLLED 12 211 1571 XX 4 SCREW MACHINE M3 X 0 5 X 40MM PAN HEAD TORX T8 WITH NYLON PATCH 13 119 8639 XX 1 FAN ASSEMBLY 119864000 W TERMINATION SAFETY CONTROLLED 14 361 1883 XX 4 SPACER RND 6MM O...

Страница 41: ...0000 and above C040000 and above 1 DISK DRIVE SOLID STATE 256GB 2 5 IN SATA III 6 0GB S TLC 7MM Option 5 LNX Service will image the SSD according to appropriate OS and processor type or purchase SUP5 LNX Backup any important data before replacing the OS drive 17 407 5877 XX 1 BRACKET HARDDRIVE 18 131 6643 XX 3 CONTACT ELECTRICAL 19 407 5896 XX 1 BRACKET SATA RISER 20 878 1100 XX 1 CIRCUIT BOARD SU...

Страница 42: ...mber Tektronix part number Serial no effective Qty Name description Figure 6 on page 42 1 407 6080 XX 1 BRACKET BAFFLE SINGLE FAN HYBRID 2 407 5875 XX 1 BRACKET POWER SUPPLY 750W SAFETY CONTROLLED 3 337 4717 XX 1 SHIELD MOUNT POWER SUPPLY SAFETY CONTROLLED Table continued Replaceable parts 5 Series MSO Service Manual MSO54 MSO56 MSO58 42 ...

Страница 43: ... 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 8 174 6614 XX 1 CABLE ASSEMBLY LINE INPUT SAFETY CONTROLLED 9 348 2082 XX 4 GROMMET FAN MOUNT NOISE DAMPING 10 119 8397 XX 1 FAN WITH 2X2 CONN 60X25MM 12V SAFETY CONTROLLED 11 343 0549 XX 1 STRAP TIEDOWN 0 09...

Страница 44: ...o effective Qty Name description Figure 7 on page 44 1 214 5469 XX 1 HEATSINK AFE 4 8 CHANNEL Return the instrument to Tektronix for service 2 348 2298 XX B020000 and above C040000 and above 4 GASKET CONDUCTIVE FOAM W PSA 12MM X 29MM X 1 5MM THICK Table continued Replaceable parts 5 Series MSO Service Manual MSO54 MSO56 MSO58 44 ...

Страница 45: ...SCREW MACHINE M3 X 0 5 X 6MM PAN HEAD TORX T10 6 870 1115 XX 1 CIRCUIT BD ASSY MAIN MDO 4CH 389482600 TESTED Return the instrument to Tektronix for service 870 1087 XX 1 CIRCUIT BD ASSY MAIN MDO 8CH 389482600 TESTED Return the instrument to Tektronix for service 7 167 2568 XX IC MEMORY DRAM DDR3 2GB 256MX72 DDR3 1866 ECC SODIMM 204 Return the instrument to Tektronix for service 2 4 channel quantit...

Страница 46: ...rument to Tektronix for service 065 1077 XX B020000 and above C040000 and above 1 MODULE ASSY SERVICE REPLACEMENT 119910100 DISPLAY W MECHANICALS Return the instrument to Tektronix for service 2 202 0520 XX Below B020000 Below C040000 1 CASE FRONT SAFETY CONTROLLED Return the instrument to Tektronix for service 202 0582 XX B020000 and above C040000 and above 1 CASE FRONT Return the instrument to T...

Страница 47: ...nstrument to Tektronix for service 878 1717 XX B020000 and above C040000 and above 1 CIRCUIT BOARD ASSY PROBE INTERFACE 3895488XX Return the instrument to Tektronix for service 8 174 7090 XX CABLE FLAT FLEX SHIELDED 1 X 50 0 5MM PITCH Return the instrument to Tektronix for service 2 4 channel quantity 3 6 channel quantity 4 8 channel quantity 9 211 1585 XX SCREW 3 X 0 5 X 8 0 THREAD FORMING PAN HE...

Страница 48: ...14 253 0560 XX THERMAL INTERFACE MATERIAL Return the instrument to Tektronix for service Applies to models with 2GHz boards only If Thermal Interface Material is removed during service replace it during reassembly 4 4 channel quantity 6 6 channel quantity 8 8 channel quantity 15 131 9410 XX 1 CONNECTOR RECEPTACLE GROUND JACK Return the instrument to Tektronix for service 16 380 1277 XX 1 HOUSING P...

Страница 49: ...8 8 channel quantity 23 335 3680 XX 1 MARKER IDENTIFICATION LABEL FRONT PANEL MSO 4 CHANNEL SAFETY CONTROLLED 335 3678 XX 1 MARKER IDENTIFICATION LABEL FRONT PANEL MSO 6 CHANNEL SAFETY CONTROLLED 335 3676 XX 1 MARKER IDENTIFICATION LABEL FRONT PANEL MSO 8 CHANNEL SAFETY CONTROLLED 24 366 0946 XX 1 ASSEMBLY KNOB PAN WITH OVERMOLD 25 358 0890 XX 1 BUSHING SPACER RING JOG SHUTTLE 26 366 0947 XX 1 ASS...

Страница 50: ...Z SAFETY CONTROLLED 335 3687 XX 1 MARKER IDENTIFICATION LABEL NOMENCLATURE MSO 6CH 1GHZ SAFETY CONTROLLED 335 3688 XX 1 MARKER IDENTIFICATION LABEL NOMENCLATURE MSO 6CH 500MHZ SAFETY CONTROLLED 335 3689 XX 1 MARKER IDENTIFICATION LABEL NOMENCLATURE MSO 6CH 350MHZ SAFETY CONTROLLED 335 3690 XX 1 MARKER IDENTIFICATION LABEL NOMENCLATURE MSO 4CH 2GHZ SAFETY CONTROLLED 335 3691 XX 1 MARKER IDENTIFICAT...

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