Tektronix MSO3000 Series Manuale utente

MSO3000 and DPO3000 Series

Digital Phosphor Oscilloscopes

ZZZ

Service Manual

*P071266700*

071-2667-00

MSO3000 and DPO3000 Series

Digital Phosphor Oscilloscopes

ZZZ

Service Manual

This document applies to ﬁrmware version 2.00 and above.

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 all safety summaries

prior to performing service.

www.tektronix.com

071-2667-00

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.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

TekLink is a trademark of Tektronix, Inc.

Tektronix is an authorized licensee of the CompactFlash® trademark.

Contacting Tektronix

Tektronix, Inc.

14200 SW Karl Braun Drive

P.O. Box 500

Beaverton, OR 97077

USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200.

Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Table of Contents

General Safety Summary .......................................................................................... v

Service Safety Summary......................................................................................... vii

Preface.............................................................................................................. ix

Manual Conventions.......................................................................................... ix

Related Documentation ...................................................................................... ix

Operating Information

Operating Information ........................................................................................... 1-1

Theory of Operation

Theory of Operation.............................................................................................. 2-1

Block Diagram............................................................................................... 2-1

Power Supply................................................................................................. 2-1

I/O Board ..................................................................................................... 2-2

Attenuator Board............................................................................................. 2-2

Main Board................................................................................................... 2-2

Front-Panel Board ........................................................................................... 2-3

Adjustment Procedures

Adjustment Procedures .......................................................................................... 3-1

Required Equipment......................................................................................... 3-1

Overview of the Adjustment Process...................................................................... 3-1

Factory Adjustment Procedure............................................................................. 3-2

Completing the Procedure .................................................................................. 3-6

Maintenance

Maintenance....................................................................................................... 4-1

Preventing ESD.............................................................................................. 4-1

Inspection and Cleaning..................................................................................... 4-1

Overview of Removal Procedures ......................................................................... 4-5

Removal Procedures......................................................................................... 4-6

Troubleshooting............................................................................................ 4-13

Troubleshooting Procedure ............................................................................... 4-14

Unpacking and Repacking Instructions ................................................................. 4-16

MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual i

Table of Contents

Replaceable Parts List

Replaceable Parts List............................................................................................ 5-1

Parts Ordering Information ................................................................................. 5-1

Using the Replaceable Parts List........................................................................... 5-3

Index

ii MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual

List of Figures

Figure 2-1: Oscilloscope module interconnections........................................................... 2-1

Figure 3-1: Rear panel ........................................................................................... 3-3

Figure 3-2: Utility page menu.......................... .................. ....................................... 3-4

Figure 3-3: Calibration selection ............................................................................... 3-4

Figure 3-4: Factory information dialog ........................................................................ 3-5

Figure 3-5: Digital channel input (MSO only)................................................................ 3-8

Figure 4-1: Locator for internal modules ...................................................................... 4-5

Figure 4-2: Reconnecting the fan cable........................................................................ 4-8

Figure 4-3: Fan cable dress...................................................................................... 4-8

Figure 4-4: Disconnecting the main board .................................................................. 4-10

Figure 4-5: Display cable shield in place .................................................................... 4-12

Figure 5-1: Exploded view: rear case and rear chassis....................................................... 5-5

Figure 5-2: Exploded view: I/O and main boards ............................................................ 5-7

Figure 5-3: Exploded view: Front panel and power supply ................................................. 5-9

Figure 5-4: Exploded view: Front panel labels ............................................................. 5-11

Figure 5-5: Exploded view: Main board shield and attenuator board .................................... 5-13

Figure 5-6: Exploded view: Front chassis and LCD assembly............................................ 5-15

Figure 5-7: Exploded view: front panel board and front case............................................. 5-17

MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual iii

Table of Contents

List of Tables

Table 4-1: External inspection check list ...................................................................... 4-3

Table 4-2: Internal inspection check list ....................................................................... 4-4

Table 5-1: Replaceable parts list: Rear case and rear chassis ............................................... 5-4

Table 5-2: Replaceable parts list: I/O and main boards...................................................... 5-6

Table 5-3: Replaceable parts list: Front panel and power supply........................................... 5-8

Table 5-4: Replaceable parts list: Front panel labels....................................................... 5-10

Table 5-5: Replaceable parts list: Attenuator................................................................ 5-12

Table 5-6: Replaceable parts list: Front chassis and LCD ................................................. 5-14

Table 5-7: Replaceable parts list: Front panel and front case ............................................. 5-16

Table 5-8: Replaceable parts list: Standard accessories................................................... 5-18

Table 5-9: Replaceable parts list: Optional accessories ................................................... 5-18

iv MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual

General Safety Summary

General SafetySummary

Review the following safety precautions to avoid injury and prevent damage to

this product or any products connected to it.

To avoid potential hazards, use this product only as speciﬁed.

Only qualiﬁed personnel should perform service procedures.

To Avoid Fire or Personal

Injury

Use Proper Power Cord. Use only the power cord speciﬁed for this product and

certiﬁed for the country of use.

Connect and Disconnect Properly. Do not connect or disconnect probes or test

leads while they are connected to a voltage source.

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

terminals of the product, ensure 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.

Connect the probe reference lead to earth ground only.

Do not apply a potential to any terminal, including the common terminal, that

exceeds the maximum rating of that terminal.

Power Disconnect. The power cord disconnects the product from the power source.

Do not block the power cord; it must remain accessible to the user at all times.

Do Not Operate Without Covers. Do not operate this product with covers or panels

removed.

Do Not Operate With Suspected Failures. If you suspect that there is damage to this

product, have it inspected by qualiﬁed service personnel.

Avoid Exposed Circuitry. Do not touch exposed connections and components

when power is present.

Do Not Operate in Wet/Damp Conditions.

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Proper Ventilation. Refer to the manual’s installation instructions for

details on installing the product so it has proper ventilation.

MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual v

General Safety Summary

TermsinthisManual These terms may appear in this manual:

WARNING. Warning statements identify conditions 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.

WARN ING indicates an injury hazard not immediately accessible as you

read the marking.

CAUTION indicates a hazard to property including the product.

The following symbol(s) may appear on the product:

vi MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual

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