xx
MSO3000 and DPO3000 Series
ZZZ
Digital Phosphor Oscilloscopes
Service Manual
*P071266700*
071-2667-00
xx
MSO3000 and DPO3000 Series
ZZZ
Digital Phosphor Oscilloscopes
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.
Revision B
www.tektronix.com
071-2667-00
Copyright © Tektronix. 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.
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.
14150 SW Karl Braun Drive
P.O . Bo x 50 0
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
World wide , visi t www.tektronix.com to find contacts in your area.
Table of Contents
General safety summary .. ................................ ................................ ........................ iv
Service safety summary........................................................................................... vi
Preface ............................................................................................................. vii
Manual Conv
Related Documentation ..................................................................................... vii
Operating Information ............................................................................................. 1
Theory of Operation... ................................ ................................ ............................. 3
Block Diagram ................................ ................................ ................................. 3
Power Supply................................................................................................... 4
I/O Boar
Attenuator Board.......... ................................ ................................ ..................... 4
Main Board..................................................................................................... 4
Front-Panel Board .. ................................ .................................. ......................... 5
Adjustment Procedures ............................................................................................ 7
Required Equipment.......................... ................................ ................................. 7
view of the Adjustment Process........................................................................ 8
Over
Factory Adjustment Procedure ............................................................................... 9
Completing the Procedure ......... .................................. ................................ ........ 12
Maintenance........................................................................................................ 17
Preventing ESD ............................................................................................... 17
Inspection and Cleaning.................... ................................ .................................. 17
erview of Removal Procedures .......................... ................................ ................ 21
Ov
Removal Procedures.......................................................................................... 22
Troubleshooting................................... ................................ ............................ 28
Troubleshooting Procedure .... ................................ ................................ .............. 29
Unpacking and Repacking Instructions ........................ ................................ ............ 31
Replaceable Parts List................... ................................ ................................ .......... 33
Parts Ordering Information .................................................................................. 33
Using the Replaceable Parts List............................................................................ 35
Index
entions...................... ................................ ................................ ... vii
d ....................................................................................................... 4
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual i
Table of Contents
List of Figure
Figure 1: Oscilloscope module interconnections .. . .. .. . .. .. . .. .. . .. .. . . . .. . .. .. .. . .. .. . .. .. . .. .. . .. .. . .. .. . .. . 3
Figure 2: Re
Figure 3: Utility page menu . . .. .. . .. .. . .. .. . .. .. . .. .. . . . .. . .. .. . . . .. . .. .. .. . .. . .. .. .. . .. . .. .. .. . .. . .. .. .. . .. . . . .. 10
Figure 4: Calibration selection............................. .................................. .................... 10
Figure 5: Factory information dialog............................................................................ 11
Figure 6: Digital channel input (MSO only) ................................................................... 14
Figure 7: Locator for internal modules.............. ................................ ............................ 21
Figure 8:
Figure 9: Fan cable dress ........................... ................................ .............................. 24
Figure 10: Disconnecting the main board ...................................................................... 26
Figure 11: Display cable shield in place ........ ................................ ................................ 27
Figure 12: Exploded view: rear case and rear chassis......................................................... 37
Figure 13: Exploded view: I/O and main boards .............................................................. 39
e 14: Exploded view: Front panel and power supply ......... .................................. ........ 41
Figur
Figure 15: Exploded view: Front panel labels . ................................ ................................ 43
Figure 16: Exploded view: Main board shield and attenuator board .................... .................... 45
Figure 17: Exploded view: Front chassis and LCD assembly................................................ 47
Figure 18: Exploded view: front panel board and front case................................................. 49
ar panel......................... ................................ .................................. ..... 9
Reconnecting the fan cable ........................................................................... 24
s
ii MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
List of Tables
Table 1: External inspection check list.......................................................................... 19
Table 2: Int
Table 3: Replaceable parts list: Rear case and rear chassis ................................................... 36
Table 4: Replaceable parts list: I/O and main boards ..................... ................................ .... 38
Table 5: Replaceable parts list: Front panel and power supply .... ................................ .......... 40
Table 6: Replaceable parts list: Front panel labels ............................ ................................ 42
Table 7: Replaceable parts list: Attenuator ..................................................................... 44
Table 8: R
Table 9: Replaceable parts list: Front panel and front case ................................................... 48
Table 10: Replaceable parts list: Standard accessories ....................................................... 50
Table 11: Replaceable parts list: Optional accessories ........... ................................ ............ 50
ernal inspection check list............. ................................ .............................. 20
eplaceable parts list: Front chassis and LCD... ................................ .................... 46
Table of Contents
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual iii
General safety summary
General safet
To avoid fir
e or personal
injury
ysummary
Review the fo
this product or any products connected to it.
To avoid pot
Only qualified personnel should perform service procedures.
Use proper
certified for the country of use.
Connect a
leads while they are connected to a voltage source.
Ground th
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 a void 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.
llowing safety precautions to avoid injury and prevent damage to
ential hazards, use this product o nly as specified.
power cord. Use only the power cord specified for this product and
nd disconnect properly. Do not connect or disconnect probes o r test
eproduct.This product is grounded through the grounding conductor
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.
Donotblockthepowercord;itmustremain 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.
iv MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
General safety summary
Terms in this manual
Symbols and terms on the
product
These terms may
WAR N ING. 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.
These terms may appear on the product:
DANGER in
the marking.
WAR N IN G
read the marking.
CAUTIO
The following symbol(s) may appear on the product:
appear in this manual:
dicates an injury hazard immediately accessible as you read
indicates an injury hazard not immediately accessible as you
N indicates a hazard to property including the product.
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual v
Service safety summary
Service safet
ysummary
Only qualifie
safety summary and the General safety summary before performing any service
procedures.
Do not service alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect power. To avoid electric shock, switch o ff 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 p
test leads before removing protective panels, soldering, or replacing components.
To a voi
d personnel should perform service procedures. Read this Service
roduct. Disconnect power, remove battery (if applicable), and disconnect
d e lectric shock, do not touch exposed connections.
vi MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Preface
Manual Conventions
This service manual provides information that you need to troubleshoot,
disassemble, and replace parts on the Tektronix MSO3000 and DPO3000 Series
Digital Phos
phor Oscilloscopes.
Modules
Replaceable Parts
Safety
Related Documentation
This manua
before attempting service.
Throughout this manual, any replaceable component, assembly, or part is referred
to by the t
A module is composed of electrical and mechanical assemblies, circuit boards,
interco
This manual refers to any field-replaceable assembly or mechanical part
specifically by its name or generically as a replaceable part. In general, a
repla
mechanical part, such as the I/O port connectors, that is listed in the replaceable
parts list.
Symb
To read about Use these documents
Installation and Operation MSO3000 and DPO3000 Series Oscilloscopes User
ecifications and Performance
Sp
Programmer Commands MSO3000 and DPO3000 Series Programmer Manual
Analysis and Connectivity Tools Getting Started with OpenChoice ® Solutions Manual
Installing and testing applications
modules
Oscilloscope calibrator Fluke Oscilloscope Calibrator Manual at
l uses certain conventions that you should become familiar with
erm module.
nnecting cables, and user-accessible controls.
ceable part is any circuit board or assembly, such as the hard disk drive, or a
ols and terms related to safety appear in the General Safety Summary
nual (available in 11 languages)
Ma
O3000 and DPO3000 Series Technical Reference
MS
(PDF only)
(PDF only)
Tektronix 3000 Series Application Module Installation
Instructions Manual
http://us.fluke.com
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual vii
Preface
viii MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Operating Information
For information on installing and operating your MSO3000 or DPO3000 Series
Oscilloscope, refer to the MSO3000 and DPO3000 Series Oscilloscopes User
Manual.
This manual is available, in 11 languages, on the Web at www.tektronix.com.
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual 1
Operating Information
2 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Theory of Operation
This chapter describes the electrical operation of the oscilloscope to the module
level. The following figure shows the oscilloscope module interconnections.
Block Diagram
Figure 1: Oscilloscope module interconnections
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual 3
Theory of Operation
Power Supply
I/O Board
Attenuator Board
The Power Supply board converts AC line voltage to +12 V and +6 V to power all
internal circuits.
The I/O board contains two USB ports (one host port and one device port), an
Ethernet p
ort (LAN), a WVGA Video port, and a Trigger Out BNC connector.
Main Board
Acquisition System
Trigger System
The Atten
Acquisition s ystem begins with the analog signal path, on the Attenuator board,
and ends with a digitized signal in memory, on the Main board.
The signal enters a channel input, and then passes through an attenuator and
preamplifier. The signal is then passed to the Main board.
The Main board module contains the following functions:
The A
board and ends with a digitized signal in memory, on the Main board. The analog
signal from each preamplifier on the Attenuator board goes through a digitizer, a
time base controller, and then into acquisition memory. The analog signal from
each preamplifier is also distributed to a trigger circuit.
The Trigger system processes the analog signals from the preamplifiers on the
Attenuator board, and sends trigger information to the time-base controller.
Advanced trigger functions are enabled only when the appropriate application
modules and supporting software are installed.
uator board contains the analog portions of the acquisition system. The
cquisition system begins with the analog signal path, on the Attenuator
isplay System
D
Processor System
4 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
The Display system combines live waveform data from acquisition memory with
menus and text, and stores this information in display memory. It then uses this
data to refresh the XGA display module (LCD).
The Processor system contains a 440EP Power PC microprocessor that controls
the entire instrument. The processor system also contains FLASH ROM, system
RAM, and interfaces to the USB ports.
Theory of Operation
Power Converter
Digital Channels
Front-Panel Board
The Power Conve
and generates voltages for the analog and digital circuitry on the Main board.
The MSO3000 series main board also includes threshold DACs and comparators
for the digit
The Front Pa
and controls, and then sends this information to the processor system on the Main
board. The Front Panel board also generates the probe compensation output signal
and p rovides an interface to the application modules.
rter receives the +12 V and +6 V from the main power supply
al channels.
nel board contains a microprocessor that reads the front-panel buttons
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual 5
Theory of Operation
6 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Adjustment Procedures
This chapter contains the factory adjustment procedure for the MSO3000
and DPO3000 Series oscilloscopes. Only qualified personnel should perform
adjustment procedures. Read the Service Safety Summary and the General Safety
Summary before performing any service procedures.
NOTE. The vo
ltage references inside the oscilloscope are very stable over time
and should not require routine adjustment. Before performing any procedure
in this chapter, do the Performance Verification procedures to check whether
the oscilloscope meets specifications. See the MSO3000 and DPO3000 Series
Specifications and Performance Verification Technical Reference.
Successful completion of this adjustment procedure automatically updates the
stored time and date of the latest successful adjustment. Completion of the
Performance Verification procedure does not update this date and time. If no
adjustm
ent is needed, there is also no need to update the time and date of the
adjustment.
Required Equipment
The following equipment, or a suitable equivalent, is required to complete these
procedures.
The following table specifies required equipment for adjusting the oscilloscope.
Description Minimum requirements Example
DC voltage source 50 mV to 70 V, ±0.1% amplitude accuracy Fluke or Wavetek 9500 Oscilloscope
Calibrator with 9530 active heads
Sine Generator 1 kHz 1 GHz Fluke or Wavetek 9500 Oscilloscope
Calibrator with one 9510 Output Module
Edge Generator
50 Ω BNC cable BNC male to BNC male, about 10 in (25 cm.)
Adjustment tool
1 kHz with < 50 ps ch-ch skew
long
Non-conducting shaft with diameter = 0.1 in.
(= 2.5 mm)
Fluke or Wavetek 9500 Oscilloscope
Calibrator with one 9510 Output Module
Tektronix part number 012-0208-00
Tektronix part number 003-1433-00
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual 7
Adjustment Procedures
Overview of th
e Adjustment Process
Before performing adjustment procedures, you must warm up the oscilloscope
for at least 30 minutes in an ambient temperature between 20 °C and 30 °C.
Adjustments
result in poor performance or calibration failure.
The factory
through these steps, the oscilloscope display provides instructions that describe
the specific input signal requirements for each step. If the oscilloscope passes the
step, it moves on to the next step. If the oscilloscope fails, you can repeat the
step or choose to abort the procedure.
If you have difficulty completing the steps, refer to the Completing the Procedure
section for specific instructions and troubleshooting information. (See page 12.)
To complete the calibration procedure, you must know how to operate the
oscilloscope calibrator. Please refer to the user manual, which can be found at
http://us.fluke.com
NOTE.
Step or Previous Step buttons during the adjustment procedure. Doing so will
cause the oscilloscope to abort the adjustment procedure. The oscilloscope uses
the previous calibration constants if the adjustment p rocedure is aborted or fails.
performed before warm-up or outside this temperature range may
adjustment procedure consists of a series of steps; as you move
Do not turn any knobs or push any front-panel buttons other than the Next
.
The screen does not display the actual oscilloscope settings (such as channel input
impedance, or vertical and horizontal settings) during the adjustment procedure.
The oscilloscope automatically sets the instrument settings, but these settings may
not read out correctly on the display.
During some steps, the instrument may appear to be idle for several minutes while
it is processing information internally.
If the oscilloscope completes all steps in the procedure successfully, a "Pass"
message is displayed and the new calibration constants take effect. If the
oscilloscope does not pass a step, you can repeat the step. To cancel the calibration
procedure, press the Menu Off front panel button on the oscilloscope. This
reverts the oscilloscope to the old calibration constants.
8 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Factory Adjustment P rocedure
To perform the factory adjustment procedure, complete these steps:
1. Connect the oscilloscope to an AC power source.
NOTE. You must connect the oscilloscope and the test equipment to the same
AC power circuit. Connect the oscilloscope and test instruments to a common
power strip if you are unsure of the AC power circuit distribution. Connecting the
oscilloscope and test instruments to separate AC power circuits can result in offset
voltages b
2. Power on the oscilloscope and warm it up for 30 minutes.
3. Power on the oscilloscope calibrator and warm it up for 30 minutes.
4. Connect the active heads from the calibrator to the oscilloscope, ensuring
that Channel 1 on the calibrator connects to Channel 1 on the oscilloscope,
and so on.
Adjustment Procedures
etween the equipment, which can invalidate the adjustment procedure.
NOTE. F
the MSO3000, there will be either 2 or 4 channels to connect, plus an additional
channel connection for the digital probe. Plug the digital probe into the Channel
5 active head on the calibrator, but do not plug the probe into the oscilloscope
until you begin a Deskew test.
5. Power off the oscilloscope. Locate the hole in the rear panel that provides
or the DPO3000, there will be either 2 or 4 channels to connect. For
access to the CAL switch.
Figure 2: Rear panel
MSO3000 and DPO3000 S eries Digital Phosphor Oscilloscopes Service Manual 9
Adjustment Procedures
6. Insert the adju
hold the CAL switch in while you power on the oscilloscope. Keep holding
the switch until the oscilloscope shows the "Power-on self test passed"
message with the oscilloscope graticule in the background. This can take up
to a minute.
7. Push the Default Setup button on the front panel of the oscilloscope.
8. Push the Utility button on the front panel of the oscilloscope.
9. Push the Utility Page lower-bezel button. The utility page menu appears.
stment tool into the CAL switch hole. Use the tool to push and
Figure 3 : Utility page menu
10. Use the Multipurpose a knobtoselectCalibration.
gure 4: Calibration selection
Fi
ush the Factory lower-bezel button. The information dialog appears.
11.P
10 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Adjustment Procedures
Figure 5: Factory information dialog
12. Push the OK Do Factory Adjustment side-bezel button to start the
adjustme
nt process. Prompts appear on the oscilloscope screen to indicate the
signal type and the channels to which it should be connected.
NOTE. The oscilloscope adjusts itself automatically using the calibrator signal as
a reference. You do not need to make any adjustments.
If you m
ake an error, such as connecting the wrong input signal, you can repeat
the last step by pushing the Return to Previous Screen side bezel button.
13. For ea
ch step, refer to the next table to identify the signal type, and then
carefully follow the instructions for that signal type on the specified page.
Signal type Example prompt Procedure to follow Parameters to set
DC Voltage Apply 0 V DC 50 Ω
termination signal to 3.
Time Mark Apply 500 mV Pk-Pk 625 Hz
50 Ω termination time mark
signal to 3.
Deskew Apply 1.0 V P k-P k 1 kHz
50 Ω termination deskew
signal to 3.
Sine Signal
Apply 2.0 V Pk-Pk 164M
50 Ω termination sine signal
to 3.
(See page 12, DC Voltage.) Waveform type, voltage,
termination, channel
(See page 14, Time Mark.) Waveform type, voltage,
frequency, termination,
channel
(See page 14, Deskew
(MSO Only).)
(See page 15, Sine Signal.) Waveform type, voltage,
Waveform type, voltage,
frequency, termination,
channel
frequency, termination,
channel
NOTE. The oscilloscope screen will not provide you with all of the information
that you need to complete the steps successfully, so it is critical that you follow the
steps outlined in the Completing the Procedure section. Each time a new prompt
appears, refer to the table above to identify the signal type, and then ensure that
you are following every step that is outlined for that specific signal type.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 11
Adjustment Procedures
14. Continue with t
15. Complete the performance verification tests to verify that the adjustment
Completing the Procedure
Instructions follow for completing the DC Voltage, Time Mark, Deskew, and Sine
Signal te
numbered instructions for the specific test type, and carefully complete each step.
If the os
this chapter, revert to the previous step and try again. If the step fails again, return
to the first step in the calibrationprocedureandtrytheentire procedure again.
If the procedure fails, there could be problem with the oscilloscope. Consider
seeking customer support.
he adjustment process until it is complete and you receive the
Pass notification. You can cancel the process at any time by pushing the
MENU OFF button.
procedure has correctly calibrated the oscilloscope. (See the MSO3000
and DPO3000 Series Specification and Performance Verification Technical
Reference.) Incorrect use of calibration equipment can cause the oscilloscope
to pass the Calibration Procedure but fail Performance Verification.
sts. For each step in the calibration procedure, start at the beginning of the
cilloscope fails a step, consult the Troubleshooting sectionattheendof
DC Voltage
The DC Voltage test is the first test to appear on the prompts, and it usually makes
up the majority of the calibration procedure tests. For each DC Voltage test,
complete all 8 steps listed below to best ensure that the test will pass.
1. Push the DC/Square
2. Push the WAV E F O R M lower-bezel button, and then push the DC Positive
right-bezel button.
sh the CHANNEL SELECT lower-bezel button.
3. Pu
4. Push the LOAD lower-bezel button to highlight either 1M Ω or 50 M Ω.
5. Select the specified channels, by using the side-bezel buttons, and then click
the EXIT lower-bezel button.
6. If the amplitude field is not selected, use the front panel scroll buttons. Type
the specified voltage, and then push the appropriate unit in the right-bezel
menu.
For 0 V: ground the signal by pushing the grounding lower-bezel
button. When this is active, you will not be able to make a channel
selection, so in some cases you might need to temporarily deselect the
grounding option while you make a channel selection. If the prompt
button.
12 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Adjustment Procedures
requires all ch
will default to Channel 1.
For any nonzer
ensure that the calibrator is in direct mode. Push the
button until 1.0 is selected.
For6Vor-6V:
a. Push the AUX front panel button.
b. Push the
side-bezel button for a -6 V signal. The polarity will be indicated only
by the ico
c. Set the amplitude to either 6 V or -6 V.
d. Set the Pulse/Energy setting to 7.2 Joules (the time should show 10s).
e. When a ll of t he parameters are set and you ensure that the output is
ON, push the Trig Pulse side-bezel and IMMEDIATELY push the
OK Do Next Step side-bezel button on the oscilloscope.
ON. Once you push the Trig Pulse button on the calibrator,
CAUTI
you have only 9 seconds to push the OK Do Next Step button on the
oscilloscope. If the instrument fails one of these tests, go all the way back
to the first 6 V test (6 V on channel 1) and start that sequence over again.
annels and the signal is grounded, The calibrator screen
ovoltage: Before you select the voltage, you must first
lower-bezel
side-bezel button for a 6 V signal or push the
n that appears in the upper-left corner of the calibrator screen.
7. Ensure that the red light is illuminated to indicate that the output is on. If not,
push the ON button, as shown below:
8. On the oscilloscope, push the OK Do Next Step side-bezel button.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 13
Adjustment Procedures
Deskew
Time Mark
(MSO Only)
TheTimeMarkte
you receive a time mark prompt, complete the following steps:
1. Push the Markers
2. Push the WAV E F O R M lower-bezel button, and then push the
side-bezel button.
NOTE. If a 62
3. Select the Amplitude field using the front panel scroll b uttons, and then
change th
4. Ensure that the red light is illuminated to indicate that the output is on. If not,
push the
5. On the oscilloscope, push the OK Do Next Step right-bezel button.
If you are using the MSO3000 Series oscilloscope, and you receive a prompt for a
deskew test, complete the following steps:
1. Plug the probe, notch down, into the digital channel input, as shown in the
following figure. Ensure that it snaps into place. Keep the probe plugged in
for the remainder of the calibration procedure.
st is often the second test type to appear in the prompts. When
front-panel button.
5 Hz signal is required, set the time marker to 1.6 ms.
e voltage by using the large front panel knob on the calibrator.
ON button.
Figure 6: Digital channel input (MSO only)
14 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Adjustment Procedures
2. Push the Aux front-panel button, and then push the Zero skew
side-bezel button.
3. Set the specified voltage, frequency, and termination.
4. Push the CHANNEL SELECT button and ensure that all channels are
selected, including Channel 5.
5. Ensure that the red light is illuminated to indicate that the output is on. If not,
push the ON button.
6. On the oscilloscope, push the OK Do Next Step right-bezel b utton. In some
cases, this can take several minutes.
CAUTION. Keep the digital probe plugged in to the oscilloscope. Unplugging the
probe ma
y result in aborting the test.
Sine Signal
When a Sine Signal prompt appears, complete the following steps:
1. Push the Sine
2. To ensure that the voltage is in direct mode, push the
button and select 1.0.
3. Push the CHANNEL SELECT lower-bezel button, and then ensure that
Channel 5 is selected.
4. Ensure that the red light is illuminated to indicate that the output is on. If not,
push the ON button.
5. On the oscilloscope, push the OK Do Next Step right-bezel button.
front panel button.
lower-bezel
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 15
Adjustment Procedures
Troubleshooting
Refer to the fol
lowing table for common issues encountered during the calibration
procedure.
Problem Things to try
The instrument fails a test
I can't set the amplitude to 0 V, as
specified in the prompt
I can't find the parameters that I
need to set
I can't set the voltage to 625 Hz
I can't set the signal to all channels
I'm having trouble with tests that
require 6 V or -6 V
The Sine Signal test failed If the prompt specified Channel 4, try setting the signal to Channel 5, instead.
Are the channels hooked up properly, routed to the right channels, and turned on
Is the signal set to the correct waveform, frequency, and termination (if applicable to the test)
Is the output set to ON (the red light will be illuminated)
Ifyoumakeacorrectionorfind that everything appears to be correct, click the Go back a
step button to try the test again.
Ground the signal by pushing the
Is the waveform set correctly
Is the grounding button on? When this is active, you will not be able to make a channel
selection, so in some cases you might need to temporarily deselect the grounding option
while you make a channel selection.
If you can find the termination settings, click the CHANNEL SELECT lower-bezel button.
Set the time marker to 1.6 Ms. This will automatically set the voltage to 625 Hz.
If you are unable to set the signal to all channels, try setting the signal to Channel 1.
Follow the steps for 6 V and -6 V that appear in Step 6 of the DC Voltage test. (See page 12,
DC Voltage.)
Ensure that the polarity is correct, by referring to the icon that appears in the upper-left corner
of the calibrator screen.
If the instrument fails a test, go all the way back to the first 6 V test (6 V on Channel 1) and
start the sequence over again.
lower-bezel button.
16 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
This section contains the information needed to do periodic and corrective
maintenance on the oscilloscope, as well as repackaging instructions if you need
to return the oscilloscope to Tektronix for service.
Preventing
ESD
Before servicing this product, read the Safety Summary and Introduction at the
front of the manual and the electrostatic discharge (ESD) information below.
CAUTION. S
oscilloscope
When performing any service that requires internal access to the oscilloscope,
adhere t
components due to electrostatic discharge.
1. Minimi
2. Transport and store s tatic-sensitive modules in their static protected containers
or on a
3. Discharge the static voltage from your body by wearing a grounded antistatic
wris
only at a static-free work station.
4. Do n
work station surface.
tatic discharge can damage any semiconductor component in this
o the following precautions to avoid damaging interna l modules and their
ze handling of static-sensitive circuit boards and components.
metal rail. Label any package that contains static-sensitive boards.
t strap while handling these modules. Service static-sensitive modules
ot place anything capable of generating or holding a static charge on the
5. Han
6. Do not slide the circuit boards over any surface.
7. Avoid handling circuit boards in areas that have a floor or work-surface
dle circuit boards by the edges when possible.
covering capable of generating a static charge.
Inspection and Cleaning
Inspection and cleaning are done as preventive maintenance. Preventive
maintenance, when done regularly, may prevent oscilloscope malfunction and
enhance its reliability.
Preventive maintenance consists of visually inspecting and cleaning the
oscilloscope and using general care when operating it.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 17
Maintenance
General Care
Flat Panel Display Cleaning
How often you do
which the oscilloscope is used. A proper time to perform preventive maintenance
is just before oscilloscope adjustment.
The cabinet h
place when operating the oscilloscope.
The display is a soft plastic display and must be treated with care during cleaning.
CAUTION. Improper cleaning agents or methods can damage the flat panel
display.
Avoid using abrasive cleaners or commercial glass cleaners to clean the display
surface.
Avoid spraying liquids directly on the display surface.
Avoid scrubbing the display with exces sive 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).
maintenance depends on the severity of the environment in
elps keep dust out of the oscilloscope and should normally be in
ior Cleaning
Inter
Exterior Cleaning
Use a dry, low-velocity stream of air to clean the interior of the chassis. Use a
soft-bristle, non-static-producing brush for cleaning around components. If you
must use a liquid for minor interior cleaning, use a 75% isopropyl alcohol solution
inse with deionized water.
and r
WARNING. To avoid injury, power down the instrument and disconnect it from
line v oltage before performing any procedure that follows.
Clean the exterior surfaces and knobs of the instrument with a dry lint-free cloth
or a soft-bristle brush. If any dirt remains, use a cloth or swab dipped in a 75%
isopropyl alcohol solution. Use a swab to clean narrow spaces around controls
and connectors. Do not use abrasive compounds on any part of the instrument
case that may damage the case.
18 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
Exterior Inspection
Clean the On/St
andby switch using a dampened cleaning towel. Do not spray or
wet the switch directly.
CAUTION. Avoid the use of chemical cleaning agents, which might damage the
plastics used in this oscilloscope. Use only deionized water when cleaning the
menu buttons or front-panel buttons. Use a 75% isopropyl alcohol solution as a
cleaner and rinse with deionized water. Before using any other type of cleaner,
consult you
r Tektronix Service Center or representative.
Lubrication. There is no periodic lubrication required for this oscilloscope.
Inspect the outside of the oscilloscope for damage, wear, and missing parts,
using the following table a s a guide. Immediately repair defects that could cause
personal injury or lead to further damage to the oscilloscope.
Table 1: External inspection check list
Item Inspect for Repair action Repair action
Cabinet, front panel, and
cover
Front-panel knobs Missing, damaged, or loose
Connectors
Carrying handle, and
cabinet feet
Accessories
Cracks, scratches,
deformations, damaged
hardware.
knobs.
Broken shells, cracked
insulation, and deformed
contacts. Dirt in connectors.
Correct operation. Repair or replace defective
Missing items or parts of
items, bent pins, broken or
frayed cables, and damaged
connectors.
Repair or replace defective
module.
Repair or replace missing or
defective knobs.
Repair or replace defective
modules. Clear or wash out
dirt.
module.
Repair or replace damaged
or missing items, frayed
cables, and defective
modules.
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
force or you may damage the plastic display surface.
CAUTION. To prevent getting moisture inside the oscilloscope during external
cleaning, use only enough liquid to dampen the cloth or applicator.
Interior Inspection
To access the inside of the oscilloscope for inspection and cleaning, refer to the
Removal Procedures in this section.
Inspect the internal portions of the oscilloscope for damage and wear, using the
following table as a guide. Repair any defects immediately.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 19
Maintenance
If any circuit b
oard is repaired or replaced, check the table to see if it is necessary
to adjust the oscilloscope.
CAUTION. To prevent damage from electrical arcing, ensure that circuit boards
and components are dry before applying power to the oscilloscope.
Table 2: Internal i nspection check list
Item Inspect for Repair action Repair action
Circuit boards
Resistors Burned, cracked, broken,
Solder connections Cold solder or rosin joints.
Capacitors
Wiring and cables Loose plugs or connectors.
Chassis Dents, deformations, and
Loose, broken, or corroded
solder connections.
Burned cir
Burned, broken, or cracked
circuit-run plating.
blistered condition.
Damaged or leaking cases.
Corroded solder on leads or
termina
Burned
wiring.
damag
cuit boards.
ls.
, broken, or frayed
ed hardware.
Remove and replace
damaged circuit board.
Remove and replace
damaged circuit board.
Resolder joint and clean
with isopropyl alcohol.
Remove and replace
damaged circuit board.
Firmly seat connectors.
or replace modules
Repair
with defective wires or
cables.
Straighten, repair, or replace
tive hardware.
defec
Cleaning Procedure — Interior. To clean the oscilloscope interior, do the following
steps:
1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).
2. 2. Remove any remaining dust with a lint-free cloth dampened in isopropyl
alcohol (75% solution) and rinsed with warm deionized water. (A
cotton-tipped applicator is useful for cleaning in narrow spaces and on circuit
ards.)
bo
NOTE. If, after doing steps 1 and 2, a module is clean u pon inspection, skip the
following steps.
If there is still dust or dirt on the module, the oscilloscope may be spray washed
using a solution of 75% isopropyl alcohol by doing the following steps:
20 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
1. Gain access to t
and panels (see Removal Procedures).
2. Spraywashdir
majority of the alcohol to evaporate.
3. Use hot (120
4. Dry all parts with low-pressure, deionized air.
5. Dry all components and assemblies in an oven or drying compartment using
low-temperature (125 °F to 150 °F) circulating air.
Overview of Removal Procedures
The following figure shows the location of modules that you are removing or
ing.
install
he parts to be cleaned by removing easily accessible shields
ty parts with the isopropyl alcohol and wait 60 seconds for the
°F to 140 °F) deionized water to thoroughly rinse them.
Figure 7: Locator for internal modules
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 21
Maintenance
List of Modules
Tools Required
The Replaceabl
ePartsListchapter provides a list of all replaceable modules. Any
replaceable component, assembly, or part is referred to as a module.
WARNING. Only qualified personnel should perform service procedures. Before
doing this or any other procedure in this manual, read the General Safety
Summary and Service Safety Summary located at the beginning of this manual.
Also, take precautions to prevent ESD damage to electrical components. (See
page 17, Preve
nting ESD.)
You will need the following tools to remove and replace all the modules in the
instrume
nt.
Torque-limiting screwdriver, 12 in-lb (1.3 N-m) range with TORX T15 tips.
If you ar
e using a magnetic screwdriver with interchangeable bits, the T15 bit
must be a long bit, at least 5 cm. (2 in) overall length.
Screwd
3
5
5
river with
/16inch nut driver
/16in. wrench
/8in. wrench
1
/8inch flat blade
Removal Procedures
Needle-nose pliers
X-ACTO knife or other razor k nife
Beginning with the rear case, remove modules as necessary to gain access to the
moduleyouneedtoremove.
WARNING. Before doing any procedure in this subsection, disconnect the power
cord from the line voltage source. Failure to do so could cause serious injury
or death.
CAUTION. When removing or installing the keypad, do not touch the switch
contacts with your fingers. The oils on your fingers will degrade or damage the
switch contacts. To help prevent damage to the keypad, use cotton gloves when
removing or installing the keyboard pad.
CAUTION. To avoid damage to the front panel standby/on switch assembly, do not
set the display module assembly on a work surface. Sliding the oscilloscope over
the edge of the work surface could break off the on/standby switch a ssembly.
22 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
Rear Case
Rear Chassi
Follow these st
eps to remove the rear case assembly. Use a TORX T15 screwdriver
tip. (See Figure 12 on page 37.)
1. Place the osci
lloscope face down on the work surface.
2. Remove the four T15 screws from the back of the rear case assembly. When
reinstalli
ng the rear case torque these screws to 8.0 in/lb.
3. Grasp the case and pull outwards to remove it.
Follow these steps to remove the rear chassis assembly. You will need a5/8in.
s
wrench, a
3
/16in. nutdriver, a5/16in. wrench, and a TORX T15 screwdriver tip.
(See Figure 12 on page 37.)
5
1. Remove the
/8in. nut from the Aux Out BNC. When reinstalling torque
this nut to 25 in/lb.
3
2. Remove the two
/8in. jackscrews from the WVGA Video connector. When
reinstalling torque these to 4.0 in/lb.
3. Remove the two T15 screws attaching the power connector. When reinstalling
torque these screws to 8.0 in/lb.
4. Remove the 12 T15 screws attaching the rear chassis to the front chassis.
When reinstalling torque these screws to 8.0 in/lb.
5. Lift the rear chassis from the oscilloscope, and unplug the fan power cable
from the I/O board. When reinstalling the rear chassis there are several steps
ollow:
to f
a. Make sure the captured nuts are still in place, in the black plastic bracket
t holds the IEC power connector.
tha
b. Make sure the connectors from the I/O board line up with their respective
les in the rear chassis.
ho
c. Make sure the two guide pins on the power connector line up with their
ositioning holes.
p
d. Thread the fan power cable through the hole in the rear chassis closest to
the fan, so that it goes to the outside of the rear chassis.
e. After the rear chassis is reattached to the front chassis, u se a spudger or a
pair of needle-nose pliers to insert the fan power connector back through
the hole and onto J200 on the I/O board. (See Figure 8.)
f. Push the rest of the fan power cable into the hole, so that the entire cable
is inside the Rear Chassis. (See Figure 8.)
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 23
Maintenance
Figure 8: Reconnecting the fan cable
Fan
Follow these steps to remove the fan assembly. You need to have previously
removed the rear case assembly and rear chassis. Use a pair of pliers. (See
Figure 13 on page 39.)
1. Use a pair of pliers to bend the tabs that hold the fan in the chassis.
2. Slide the fan assembly out and away from the chassis.
3. When reinstalling, dress the fan power cable carefully. (See Figure 9.)
Figure 9 : Fan cable dress
I/O Board
24 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Follow these steps to remove the I/O board. You need to have previously removed
the rear case assembly and rear chassis. (See Figure 13 on page 39.)
1. Disconnect the power cable from J104 on the I/O board.
2. Rock the board slightly while pulling straight up to disconnect the board
from the edge connector.
3. Disconnect the cable from J103 on the I/O board and lift the board away.
4. Place the board on a static-free surface.
Maintenance
Power Supply Module
Main Board
Follow these st
previously removed the rear case assembly rear chassis, and I/O board. Use a
TORX T15 screwdriver tip. (See Figure 14 on page 41.)
1. Disconnect the power cable from J104 on the I/O board (if still attached)
and from J0403 on the Main board.
2. Disconnect the cable from the Power Supply module to J0401 on the Main
board.
3. Disconnect the power connector ground lead from the chassis.
4. Remove the
chassis. When reinstalling torque these screws to 8.0 in/lb.
5. Lift the P
chassis and place it on a static-free surface.
Follow these steps to remove the main board. You need to have previously
remove
TORX T15 screwdriver tip. (See Figure 13 on page 39.)
1. Disco
2. Disconnect the display backlight cable from the J6500 on the main board.
d the rear case assembly, rear chassis, power supply, and I/O board. Use a
eps to remove the power supply module. You need to have
five T15 screws that attach the Power Supply module to the
ower Supply module, including the power connector, off of the
nnect the Front Panel cable from J6000 on the main board.
3. Disconnect the front panel cable from J0400 on the main board.
4. Disconnect the power supply control cable from J0401 on the main board.
5. Disconnect the LCD display cable from the J6600 on the main board.
6. Disconnect the front panel USB cable from J0501 on the main board.
sconnect the power supply cable from J0403 on the main board.
7. Di
8. Remove the seven T15 screws that connect the main board to the chassis.
hen reinstalling torque these screws to 8.0 in/lb.
W
9. Use a screwdriver or other bar to pry the main board up, to disconnect the
onnection to the Attenuator board. Place the point of the screwdriver under
c
themiddleheatsinkspringandusethechassisedgeasthefulcrum. (See
Figure 10.)
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 25
Maintenance
Attenuator Board
Figure 10:
10. Lift the m
11. When reinstalling make sure to align the main board and attenuator board
For MSO3000 Series oscilloscopes, make sure that the Digital Probe Guide is
in place before reinstalling the main board.
Follo
removed the rear case assembly, rear chassis, power supply, I/O board, and main
board. Use a TORX T15 screwdriver tip. (See Figure 16 on page 45.)
1. Remove the six T15 screws that connect the main board shield to the chassis.
2. Remove the main board shield and set it aside.
3. Remove the nine T15 screws that connect the attenuator board to the chassis.
Disconnecting the main board
ain board out of the chassis and place it on a static-free surface.
connect
on page 39.) Then use a spudger or small screwdriver to make sure that J101
is firmly seated on the front panel board. (See Figure 17 on page 47.)
w these steps to remove the attenuator board. You need to have previously
Note that there are two lengths; the shorter ones go through the side rail.
When reinstalling torque these screws to 8.0 in/lb.
Note that there are two lengths; the shorter ones go through the side rail.
When reinstalling torque these screws to 8.0 in/lb.
ors and press down until the connector snaps together. (See Figure 13
4. Remove the attenuator board and place it on a static-free surface.
26 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
Front Chassis
Display Module
Follow these st
eps to remove the front chassis. You need to have previously
removed the rear case assembly, rear chassis, power supply, I/O board, main
board, and attenuator board. Use a TORX T15 screwdriver tip. (See Figure 17
on page 47.)
1. Disconnect the cables connected to J101 and J103 on the front panel board.
2. Remove the eight T15 screws that connect the front chass
is to the front case.
When reinstalling torque these screws to 8.0 in/lb.
3. Lift the front chassis from the front case and p lace it on a static-free surface
with the LCD assembly facing up.
Follow these steps to remove the display module. You need to have previously
removed the rear case assembly, rear chassis, power supply, I/O board, main
board, attenuator board, and front chassis. Use a TORX T15 screwdriver tip.
(See Figure 17 on page 47.)
1. Place the front chassis on a soft, static-free surface with the LCD assembly
down.
2. Remove the four
5
/16in nuts that connect the display cable shield to the front
chassis, and remove the display cable shield. When reinstalling torque these
nuts to 8.0 in/lb. (See Figure 11.)
Figure 11: Display cable shield in place
3. Turn the front chassis over and remove the eight T15 screws that connect the
display to the front chassis. (See Figure 17 on page 47.) When reinstalling
torque these screws to 8.0 in/lb.
4. Gently lift the display up and off of t he chassis.
CAUTION. Be careful when removing and reinstalling the Display module cables.
If the connectors have bent pins or are installed incorrectly, the Display may
be destroyed.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 27
Maintenance
Front-panel USB
Connector
Front Panel Module
Usethisproced
previously removed the rear case assembly, rear chassis, power supply, I/O board,
main board, attenuator board, and front chassis. Use a TORX T15 screwdriver tip,
needle-nose pliers, and a razor knife. (See Figure 17 on page 47.)
1. Place the front chassis on the work surface with the LCD facing up.
2. Remove the two T15 screws that connect the U SB lower bracket to the
chassis, and remove the bracket and its attached EMI clip.
3. Use a pair of needle nose pliers to remove the upper EMI clip from the front
chassis.
4. Turn the front chassis over and use the razor knife to trim off the plastic ears
on both sides of the USB c onnector. (See Figure 17.)
5. Slide the USB connector and cable out toward the front of the chassis. When
reinstalling slide the new USB cable and housing in from the front of the
chassis and push the connector in until it snaps into place.
Follow these steps to remove the Front Panel module. You need to have previously
removed the rear case assembly, rear chassis, power supply, I/O board, main
board, attenuator board, and front chassis. Use a TORX T15 screwdriver tip. (See
Figure14onpage41.) (SeeFigure18onpage49.)
ure to remove the front-panel USB connector. You must have
Troubleshooting
1. Remove all the front panel knobs.
2. Remove the 14 T15 screws (10 with ground spring contacts) holding the Front
Panel board to the chassis. When reinstalling torque these screws to 8.0 in/lb.
3. Lift the Front Panel board off of the chassis.
CAUTION. Do not touch the keypad switch contacts with your fingers. The oils
on your fi ngers will degrade or damage the switch contacts. To help prevent
damage to the keypad, use cotton gloves.
This section contains information and procedures to help you isolate a defective
module in the oscilloscopes.
WARNING. Before doing this or any other procedure in this manual, read the
General Safety Summary and Service Safety Summary found at the beginning
of this manual. Also, take precautions to prevent ESD damage to electrical
components. (See page 17, Preventing ESD.)
28 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
Adjustment After Repair
Required Tools and
If you replace t
page 7, Adjustment Procedures.)
You need the following equipment to troubleshoot the instrument.
Equipment
Tools and Equipment Example
DMM 3.5 digits or greater
Troubleshooting Procedure
The following diagrams are troubleshooting procedure flowcharts. Beginning
with Flowchart 1, use them to troubleshoot an instrument failure.
WAR N ING. Before removing the cabinet, disconnect the power cord from the line
voltage s
he Main board, you must adjust the instrument after repair. (See
ource. Failure to do so could cause serious injury or death.
Flowchart 1 — Primary troubleshooting procedure
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 29
Maintenance
Flowchart 2 — AC power supply troubleshooting procedure
30 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Maintenance
Flowchart 3 — Module isolation troubleshooting procedure
Unpacking and Repacking Instructions
This section contains the information needed to u npack the oscilloscope and
ack it for shipment or storage.
rep
Unpacking
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 31
The oscilloscope and its standard accessories are carefully packed at the factory in
a shipping carton. If, upon receipt, damage to the shipping carton is evident, notify
e shipper. Tektronix, Inc. is not responsible for damage caused during shipping.
th
Maintenance
Repacking
If you have not a
accessories from the shipping carton and inspect them for damage. Save the
shipping carton for repacking or storage.
Useacorruga
275 pounds (125 kg) and with an inside dimension a t least six inches (15.25 cm)
greater than the instrument dimensions.
If the instrument is being shipped to a Tektronix Service Center, enclose the
following information:
The owner’s address
Name and p
Type and serial number of the instrument
Reason for returning
A complete description of the service required
Seal the shipping carton with an industrial stapler or strapping tape.
Mark the address of the Tektronix Service Center and also your own return address
on the shipping carton in two prominent locations. See www.tektronix.com/service
to find a service center near you.
lready done so, carefully remove the oscilloscope and its
ted cardboard shipping carton having a test strength of at least
hone number of a contact person
Storage
The oscilloscope should be stored in a clean, dry environment. The following
environmental characteristics apply for both shipping and storage:
Temperature range: -20 °C to +60 °C
titude: To 15,000 m
Al
See the MSO3000 and DPO3000 Series Specifications and Performance
rification Technical Reference for a complete listing of the environmental
Ve
characteristics.
32 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
This chapter contains a list of the replaceable modules for the MSO3000 and
DPO3000 Series Oscilloscopes. Use this list to identify and order replacement
parts.
Parts Order
ing Information
Part Number Revision
Level
Replacement parts are available through your local Tektronix field office or
representative.
Changes to Tektronix products are sometimes made to accommodate improved
components as they become available and to give you the benefit of the latest
improvem
following information in your order.
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.
Change information, if any, is located at the rear of this manual.
Tektronix part numbers contain two digits that show the revision level of the
part. For some parts in this manual, you will find the letters XX in place of the
revision level number.
ents. Therefore, when ordering parts, it is important to include the
Part num
Instrument type or model number
Instrument serial number
Instrument modification number, if applicable
ber (see Part Number Revision Level below)
When you order parts, Tektronix will provide you with the most current part for
your product type, serial number, and modification (if applicable). At the time of
your order, Tektronix will determine the part number revision level needed for
your product, based on the information you provide.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 33
Replaceable Parts List
Module Servicing
Modules can be s
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 module
exchange pr
Module Repair and Return. You may ship your module to us for repair, after
which we will return it to you.
New Modules. You may purchase replacement modules in the same way as other
replacem
ent parts.
erviced by selecting one of the next three options. Contact your
ogram, call 1-800-833-9200, extension 2.
34 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Using the Replaceable Parts List
This section contains a list of the mechanical and/or electrical components that
are replaceable for the instrument. Use this list to identify and order replacement
parts. The following table describes each column in the parts list.
Column Column name Description
1
2 Tektronix Part
3 and 4
5
6
Figure & Index
Number
Number
Serial Nu
Qty This ind
Name &
Description
mber
Items in this section are referenced by figure and index
numbers to the exploded view ill ustrations that precede
the list.
Use this part number when ordering replacement parts
from Tektr
Column th
was first effective. Column four indicates the serial number
at which the part was discontinued. No entries indicates
the part i
An item
(:). Because of space limitations, an item name may
sometimes appear as incomplete. Use the U.S. Federal
Catalo
Replaceable Parts List
onix.
ree indicates the serial number at which the part
s good for all serial numbers.
icates the quantity of parts used.
name is separated from the description by a colon
g handbook H6-1 for further item name identification.
Abbreviations
Exploded Views
viations conform to American National Standard ANSI Y1.1-1972.
Abbre
The following figures show the module-level exploded views of the MSO3000
and DPO3000 Series oscilloscopes. Each exploded view is indexed by the
numbers in the figure.
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 35
Replaceable Parts List
Table 3: Replac
eable parts list: Rear case and rear chassis
Fig. &
index
number
12-1
-2 211-1275-00 4
-3 441-2509-00 1
-4 211-1272-00 12
-5
-6 220-0265-00 1
-7
-8 211-1276-00 2
-9 348-1910-00 2
-10 335-1875-00 1
Tektronix
part number
065089300
202-0462-00 1
367-0548-XX 1
348-1909-XX 2
210-1039-00 1
214-3903-00 2
Serial no.
effective
Serial no.
discont’d Qty Name & descrip tion
MODULE ASSY;SERVICE REPLACEMENT KIT,REAR CASE
ASSEMBLY
CASE, REAR ASSEMBLY
HANDLE; CARRYING; SAFETY CONTROLLED
FOOT REAR; SAFETY CONTROLLED
SCREW,MACHINE; W/HEAVY PATCH THREADLOCKING MATERIAL;
6-32 X 0.312 L,PNH,STL CAD PLT,T15
CHASSIS, REAR
SCREW,MACHINE; 6-32 X 0.250,PNH,STL,ZNPL,T-15 TORX
WASHER,LOCK; 0.521 ID,INT,0.025 THK,410 SS, PASSIVATED
NUT,PLAIN,HEX; 0.5-28 X 0.625 HEX,BRS,NKL PL
SCREW, JACK; 4-40 X 0.312 LONG, 0.188 H HEX HEAD STAND OFF,
4-40 INT THD, X 0.312 THD EXT 4-40, STEEL, SN PLATED
SCREW, MACHINE; 6-32 X 0.375, PNH, STL,ZNPL, T-15 TORX DR
FOOT FRONT CABINET HINGED FSN.PRT
LABEL, REAR, IO; SAFETY CONTROLLED
36 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
Figure 12: Exploded view: rear case and rear chassis
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 37
Replaceable Parts List
Table 4: Replac
eable parts list: I/O and main boards
Fig. &
index
number
13-1 119-7365-00 1
-2 870-0015-01 1
-3
-4 211-1275-01 8
Tektronix
part number
870-0407-00 1
870-0406-00 1
870-0408-00 1
870-0263-00 1
870-0264-00 1
870-0237-00 1
870-0236-00 1
870-0235-00 1
870-0234-00 1
870-0019-00 1
870-0016-00 1
Serial no.
effective
Serial no.
discont’d Qty Name & descrip tion
FAN; 120MM, TUBEAXIAL, 12 VDC; SAFETY CONTROLLED
CIRCUIT BOARD ASSY;2 & 4 CH I/O
MAIN;389378600;TESTED;DPO3000
CIRCUIT BD ASSY;4 CH ACQUISITION BD
MAIN;3894164XX;TESTED MSO3054
CIRCUIT BD ASSY;4 CH ACQUISITION BD
MAIN;3894164XX;TESTED MSO3034
CIRCUIT BD ASSY;2 CH ACQUISITION BD MAIN; 3894164XX;
TESTED MSO3032
CIRCUIT BD ASSY;4 CH ACQUISITION BD
MAIN;3894164XX;TESTED MSO3014
CIRCUIT BD ASSY;2 CH ACQUISITION BD MAIN; 3894164XX;
TESTED MSO3012
CIRCUIT BOARD ASSY;4 CH ACQUISITION
BD;379377900;TESTED;DPO3054
CIRCUIT BOARD ASSY;2 CH ACQUISITION
BD;379377900;TESTED;DPO3052
CIRCUIT BOARD ASSY;4 CH ACQUISITION
BD;379377900;TESTED;DPO3034
CIRCUIT BOARD ASSY;2 CH ACQUISITION
BD;379377900;TESTED;DPO3032
CIRCUIT BOARD ASSY;4 CH ACQUISITION
BD;389377900;TESTED;DPO3014
CIRCUIT BOARD ASSY;2 CH ACQUISITION
BD;379377900;TESTED;DPO3012
SCREW, MACHINE; W/HEAVY PATCH THREADLOCKING
MATERIAL; 6-32 X 0.312 L, PNH,STL,ZNPL, T15
38 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
Figure 13: Exploded view: I/O and main boards
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 39
Replaceable Parts List
Table 5: Replac
Fig. & index
number
14-1 119-7281-00 1
-2 211-1275-01
-3 211-1273-00 1
-4 366-0865-00 1
-5
-6 366-0867-01 1
-7
-8
-9
eable parts list: Front panel and power supply
Tektronix part
number
358-0883-0
366-0861-01 2
366-0859
366-0859-01 4
366-0860-01
366-0860
0
-01
-01
Serial no.
effective
Serial no.
discont’d Qty Name & descrip
tion
POWER SUPPLY; CUSTOM,MALIBU,AC-DC;85-275 VAC 45-440HZ
IN;+6VDC 6A,1
OUTPUT;SAFETY CONTROLLED
5
1
6
5
3
SCREW, MACHI
6-32 X 0.312 L, PNH,STL,ZNPL, T15
SCREW,PT; K
KNOB, JOG
BUSHING (JOG SHUTTLE KNOB)
KNOB, SHUT
KNOB, .925 DIA, SOFT TOUCH
KNOB, .470 DIA, SOFT TOUCH (4-CHANNEL MODELS)
KNOB, .47
KNOB, .685 DIA, SOFT TOUCH (4-CHANNEL MODELS)
KNOB, .685 DIA, SOFT TOUCH (2-CHANNEL MODELS)
2V 4A OUT;PLUS SOFT SWITCH & LINE TRIGGER
NE; W/HEAVY PATCH THREADLOCKING MATERIAL;
35-1.57,PAN HEAD,STL,ZNPL,T-15
TLE
0 DIA, SOFT TOUCH (2-CHANNEL MODELS)
40 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
Figure 14: Exploded view: Front panel and power supply
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 41
Replaceable Parts List
Table 6: Replac
eable parts list: Front panel labels
Fig. &
index
number
15-1
-2 200-5049-00 1
Tektronix
part number
335-1926-00 1
335-1925-00 1
335-1924-00 1
335-1923-00 1
335-1922-00 1
335-1921-00 1
335-1920-00 1
335-1919-00 1
335-1918-00 1
335-1917-00 1
Serial no.
effective
Serial no.
discont’d Qty Name & descrip tion
LABEL. FRONT PANEL, OVERLAY, RUSSIAN
LABEL. FRONT PANEL, OVERLAY, KOREAN
LABEL. FRONT PANEL, OVERLAY, STD CHINESE
LABEL. FRONT PANEL, OVERLAY, SIM CHINESE
LABEL. FRONT PANEL, OVERLAY, PORTUGUESE
LABEL. FRONT PANEL, OVERLAY, JAPANESE
LABEL. FRONT PANEL, OVERLAY, SPANISH
LABEL. FRONT PANEL, OVERLAY, GERMAN
LABEL. FRONT PANEL, OVERLAY, ITALIAN
LABEL. FRONT PANEL, OVERLAY, FRENCH
COVER; DOOR, APP KEY
42 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Figure 15: Exploded view: Front panel labels
Replaceable Parts List
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 43
Replaceable Parts List
Table 7: Replac
Fig. & index
number
16-1
-2 211-1275-00
-3 211-1272-00 8
-4 351-1
-5
eable parts list: Attenuator
Tektronix part
number
050-3715-xx
337-4462-00
Order by
description
130-00
870-0030-00 1
870-0032-01 1
Serial no.
effective
C0 11121
C010309
C011323
C010538
C011229
C010713
Serial no.
discont’d Qty Name & descrip
C011120
C010308
C011322
C010537
C011228
C010712
tion
1
1
1
1
1
1
1
1
1
1
1
1
1
1
7
1
SHIELD, MAINBOARD, DPO3054 Only
SHIELD, MAINBOARD, DPO3052 Only
SHIELD, MAIN
SHIELD, MAINBOARD, DPO3032 Only
SHIELD, MAINBOARD, DPO3014 Only
SHIELD, MAI
SHIELD, MAINBOARD, DPO3054 Only
SHIELD, MAINBOARD, DPO3052 Only
SHIELD, MA
SHIELD, MAINBOARD, DPO3032 Only
SHIELD, MAINBOARD, DPO3014 Only
SHIELD, M
SHIELD, MAINBOARD, MSO3000 Series
**ATTACHED PART**
GASKET,
**END A
SCREW, MACHINE; W/HEAVY PATCH THREADLOCKING MATERIAL;
6-32 X 0
SCREW,MACHINE; 6-32 X 0.250,PNH,STL,ZNPL,T-15 TORX DR
DIGITAL PROBE GUIDE (MSO3000 SERIES ONLY)
ATTEN
WIRED (4-CHANNEL MODELS)
ATTE
WIRED (2-CHANNEL MODELS)
BOARD, DPO3034 Only
NBOARD, DPO3012 Only
INBOARD, DPO3034 Only
AINBOARD, DPO3012 Only
FOAM, CONDUCTIVE, W /ADHESIVE, 5.0 INCH of 348-1863-00
TTACHED PART**
.312 L, PNH,STL,ZNPL, T15
UATOR CIRCUIT BD ASSY;TESTED;8780030XX,3893928XX
NUATOR CIRCUIT BD ASSY;TESTED;8780030XX,3893928XX
44 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
re 16: Exploded view: Main board shield and attenuator board
Figu
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 45
Replaceable Parts List
Table 8: Replac
eable parts list: Front chassis and LCD
Fig. &
index
number
17-1
-2 211-1273-00 8
-3 850-0043-00 1
-4 211-1272-00 8
-5
-6 131-7622-00 1
Tektronix
part number
050-3715-xx
441-2570-00
174-5411-00 1
Serial no.
effective
C011121 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3054 Only
C010309 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3052 Only
C011323 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3034 Only
C010538 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3032 Only
C011229 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3014 Only
C010713 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3012 Only
Serial no.
discont’d Qty Name & descrip tion
C011120
C010308 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3052 Only
C011322 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3034 Only
C010537 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3032 Only
C011228 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3014 Only
C010712 CHASSIS, FRONT; SAFETY CONTROLLED, DPO3012 Only
1
CHASSIS, FRONT; SAFETY CONTROLLED, DPO3054 Only
CHASSIS, FRONT; SAFETY CONTROLLED, MSO3000 Series
SCREW, PT; K35-1.57, PAN HEAD, STL, ZNPL, T-15
LCD DISPLAY ASSEMBLY
SCREW,MACHINE; 6-32 X 0.250,PNH,STL,ZNPL,T-15 TORX DR
CABLE EXTENSION, USB-HOST; SAFETY CONTROLLED
CONN,RCPT;GROUND JACK
46 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
gure 17: Exploded view: Front chassis and LCD assembly
Fi
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 47
Replaceable Parts List
Table 9: Replac
eable parts list: Front panel and front case
Fig. &
index
number
18-1
-2 211-1273-00 18
-3 131-8139-00 10
-4 260-2853-00 1
-5
Tektronix
part number
878-0323-01 1
878-0322-01 1
878-0029-01 1
878-0028-01 1
050-3717-00 1
050-3716-00 1
050-3700-00 1
050-3701-00 1
Serial no.
effective
Serial no.
discont’d Qty Name & descrip tion
CIRCUIT BOARD SUBASSY;4 CH FRONT
PANEL;UNTESTED,389423000
(MSO 4-CHANNEL MODELS)
CIRCUIT BOARD SUBASSY;2 CH FRONT
PANEL;UNTESTED,389423000
(MSO 2-CHANNEL MODELS)
CIRCUIT BOARD ASSY;4 CH FRONT PANEL;TESTED,389378100
(DPO 4-CHANNEL MODELS)
CIRCUIT BOARD ASSY;2 CH FRONT PANEL;TESTED,389378000
(DPO 2-CHANNEL MODELS)
SCREW,PT; K35-1.57,PAN HEAD,STL,ZNPL,T-15
CONTACT, SPRING; FRONT PANEL ELEC
SWITCH, KEYPAD, ELASTOMERIC FRONT PANEL, 4 CHANNEL
PARTS REPL KIT; 4CH FRONT PANEL ASSY; MSO3014/3034/3054
PARTS REPL KIT; 2 CH FRONT PANEL ASSY; MSO3012/3032
PARTS REPL KIT; 2 CH FRONT PANEL ASSY; DPO3012/3032/3052
PARTS REPL KIT; 4CH FRONT PANEL ASSY; DPO3014/3034/3054
48 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Replaceable Parts List
Figure 18: Exploded view: front panel board and front case
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 49
Replaceable Parts List
Table 10: Repla
ceable parts list: Standard accessories
Fig. &
index
number
Tektronix
part number
200-5052-00 1
See
Description
016-1967-00 1
010-6316-01 1
Serial no.
effective
Serial no.
discont’d Qty Name & description
Table 11: Replaceable parts list: Optional accessories
Tektronix
part number
800-0042-xx
800-0043-xx
044-xx
800-0
800-0045-xx
119-7465-xx
6316-xx
067-
679-6240-xx
679-6353-xx
Serial no.
effective
Serial no.
discont’d Name & description
TO Replacement Module
DPO3AU
DPO3COMP Replacement Module
DPO3EMBD Replacement Module
ID Replacement Module
DPO3V
TekVPI external power supply (required when probe power exceeds 20W)
MSO Test Probe (use with 679-6240-XX)
est Probe BNC Input Fixture
MSO T
P6316 MSO Probe Functional test Board
COVER, FRONT, PROTECTIVE
1
CABLE ASSY, POWER:
Option Country
A0
A1
A2
A3
A5
A6 JAPAN 161-0342-00
A10
A11 INDIA 161-0349-00
POUCH, PLASTIC:POUCH
MSO PROBE; 16 CHANNEL DIGITAL PROBE, GENERAL PURPOSE;
P6316
NORTH AMERICA
UNIVERSAL EURO
UNITED KINGDOM
AUSTRALIA
SWITZERLAND
CHINA
Part number
161-0348-00
161-0343-00
161-0344-00
161-0346-00
161-0347-00
161-0341-00
50 MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual
Index
A
acquisition system, description, 4
adjustment p
factory, 9, 12
adjustments, 7
application modules, vii
attenuator board removal, 26
rocedure, 8
C
calibration switch, 9
circuit d
connectivity, vii
escription, 3
D
description
circuit theory, 3
diagram, 3
display module removal, 27
ay system, description, 4
displ
documentation, vii
F
factory adjustment, 8
fans removal, 24
flowcharts
troubleshooting, 29
front chassis removal, 27
front panel removal, 28
front panel, description, 5
I
I/O board connections, 4
I/O board r
internal modules, 21
emoval, 24
M
main board functions, 4
main board removal, 25
manual conventions, vii
manuals, vii
module
interconnections, 3
P
power converter, description, 5
power supply, 4
power supply removal, 25
probe compensation, 5
processor system, description, 4
R
r case removal, 23
rea
rear chassis removal, 23
removal procedures, 21, 22
attenuator board, 26
display module, 27
fans, 24
front chassis, 27
front panel, 28
I/O board, 24
main board, 25
power supply, 25
rear case
rear chassis, 23
replaceable part, definition, vii
,23
S
Safety Summary, iv
T
trigger system, description, 4
troubleshoot, 28
U
rmanual, 1
use
MSO3000 and DPO3000 Series Digital Phosphor Oscilloscopes Service Manual 51
Loading...