Related Manuals for Tektronix MSO 2 Series
Summary of Contents for Tektronix MSO 2 Series
- Page 1 2 Series MSO MSO22 and MSO24 Service Manual Register now! Click the following link to protect your product. tek.com/register *P077171001* 077-1710-01 May 2025...
- Page 2 Copyright © 2025, Tektronix. 2025 All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved.
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Page 3: Table Of Contents
Contents Contents Important safety information................................4 General safety summary................................4 Service safety summary.................................4 To avoid fire or personal injury............................... 5 Probes and test leads................................6 Terms in this manual and on the product..........................7 Symbols on the product................................. 8 Operating safely with battery power............................9 Preface......................................10 Supported products................................10 Where to find operating information.............................10... -
Page 4: Important Safety Information
Important safety information Important safety information This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition. General safety summary Use the product only as specified. Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. -
Page 5: To Avoid Fire Or Personal Injury
Do not connect or disconnect probes or test leads while they are connected to a voltage source. Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be suitable for the product. -
Page 6: Probes And Test Leads
Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries. Use only the Tektronix rackmount hardware specified for this product. Probes and test leads Before connecting probes or test leads, connect the power cord from the power connector to a properly grounded power outlet. -
Page 7: Terms In This Manual And On The Product
Important safety information Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads, and adapters for any measurement. Beware of high voltages Understand the voltage ratings for the probe you are using and do not exceed those ratings. Two ratings are important to know and understand: •... -
Page 8: Symbols On The Product
Important safety information Symbols on the product When this symbol is marked on the product, 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(s) may appear on the product. -
Page 9: Operating Safely With Battery Power
Inspect the cable, insulation, and terminal ends for damage before use. Do not use a damaged grounding cable. Contact Tektronix for a replacement. If you choose not to attach the grounding cable, you are not protected against electric shock if you connect the oscilloscope to a hazardous voltage. -
Page 10: Preface
Preface Preface Information to help service your instrument. Read the General and Service safety summaries before servicing the product. Be sure to read the introductions to all procedures. These introductions provide important information needed to perform the service correctly, safely, and efficiently. Supported products This manual contains information that is necessary to service all 2 Series MSO instruments. -
Page 11: Theory Of Operation
Theory of operation Theory of operation The theory of operation describes the electrical operation of the oscilloscope to the module level. The block diagram shows the oscilloscope module interconnections. Figure 1: 2 Series MSO block diagram Power supply The external AC/DC power supply converts AC line voltage to +24 VDC to power the instrument. Main board The Main boards contain the following functions: Acquisition system... -
Page 12: Front Panel And Display
Theory of operation Front panel and display The front panel circuit contains digital logic that reads the front panel buttons and sends this information to the processor system on the main board. The front panel circuit also contains indicator LEDs to represent system status to the user. -
Page 13: Maintenance
Use a 75% isopropyl alcohol solution as a cleaner for cabinet parts. Before using any other type of cleaner, consult your Tektronix Service Center or representative. Inspection - Exterior. Inspect the outside of the instrument for damage, wear, and missing parts. Immediately repair defects that could cause personal injury or lead to further damage to the instrument. -
Page 14: Flat Panel Display Cleaning
Any module inside of the chassis that does not have a remove and replace procedure requires that the entire instrument be returned to Tektronix Service Center for service. WARNING: Before performing this or any other procedure in this manual, read the safety summaries found at the beginning of this manual. -
Page 15: Required Equipment
Maintenance Required equipment ® Most assemblies in this instrument can be removed with a T-10 Torx screwdriver tip. Item No. Name Description Screwdriver handle Accepts Torx-driver bits T-10 Torx tip Used for removing instrument screws. Torx-driver bit for T-10 size screw heads T-8 Torx tip Used for removing screws securing the internal power cable Instrument Assembly Fixture... - Page 16 Maintenance b) To remove the two fan cables, depress the latch and slide the cable away from the connector. c) To remove the power inlet cable, depress the latch and slide the cable away from the connector. d) To remove the display cable, flip up the connector latch on back side (away from cable) and slide the flex cable out of the connector.
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Page 17: Troubleshooting
This subsection contains information and procedures to help you determine if a faulty power supply is the problem with your instrument. If replacing the power supply does not fix the fault, you will need to return the instrument to a Tektronix Service Center for repair, as no other internal electronic assemblies or modules are user-replaceable. - Page 18 Maintenance Symptom Possible cause(s) License keys will not load Bad encryption EEPROM Instrument will not power on Power enable Power supplies Instrument will not power off properly MFG JTAG connection Processor/Power control communication Button press logic Power on momentarily then off Power enable Power supplies Instrument will not remember previous power state...
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Page 19: Troubleshooting Procedures
Maintenance Troubleshooting procedures Use the following diagrams to troubleshoot an instrument failure. Begin with the Primary troubleshooting procedure. Before you begin • Use a digital voltmeter to check power supply voltages. • An antistatic work environment. 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. -
Page 20: Power Supply Troubleshooting Procedure
Maintenance Power supply troubleshooting procedure Note: Images show the power supply cable disconnected from the main board, to better show the test point locations. The power cable from the power supply must be connected to the main board to test the +24 VDC value. - Page 21 Maintenance Main board isolation troubleshooting procedure Power fuse troubleshooting procedure 2 Series MSO MSO22 and MSO24 Service Manual...
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Page 22: Instrument Self Tests
Utility > Self Test. Select a test mode and run the self tests. If you continue to get errors on one or more tests, you will need to return the instrument to your nearest Tektronix Service Center for repair. -
Page 23: Replaceable Parts
Use assembly parts list to identify replaceable parts for your product . You cannot order internal parts for the 2 Series MSO. For more information about replacing parts, contact your local Tektronix Service Center. Include the following information when contacting Tektronix. - Page 24 Replaceable parts Index number Tektronix part Name and description number 065-1087-XX SERVICE REPLACEMENT KIT; FRONT PANEL & CHASSIS FOR MSO22 065-1086-XX SERVICE REPLACEMENT KIT; FRONT PANEL & CHASSIS FOR MSO24 276-0894-XX EMI SUPPRESSION; BROADBAND FERRITE; SPLIT ROUND CABLE, PKG APROX 15X15X18MML, IMPEDANCE 123 OHMS...
- Page 25 Replaceable parts Index number Tektronix part Name and description number 878-1798-XX CIRCUIT BOARD ASSEMBLY; BUILD OPTION A; MAIN; 2 CH; 2 SERIES; 3895547XX; MSO22 878-1797-XX CIRCUIT BOARD ASSEMBLY; STANDARD; MAIN; 4 CH; 2 SERIES; 3895547XX; MSO24 351-1162-XX GUIDE, MSO GUIDE...
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