Keysight Technologies InfiniiVision 2000, InfiniiVision 3000 Service Manual
Keysight InfiniiVision
2000/3000 X-Series
Oscilloscopes
Service Guide
Notices
CAUTION
WARNING
© Keysight Technologies, Inc. 2008-2017
No part of this manual may be reproduced in
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a foreign language) without prior agreement
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international copyright laws.
Manual Part Number
75019-97099
Edition
August 2017
Available in electronic format only
Published by:
Keysight Technologies, Inc.
1900 Garden of the Gods Road
Colorado Springs, CO 80907 USA
Warranty
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acquires no greater than Limited Rights as
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(c), as applicable in any technical data.
Safety Notices
This product has been designed and tested in
accordance with accepted industry
standards, and has been supplied in a safe
condition. The documentation contains
information and warnings that must be
followed by the user to ensure safe operation
and to maintain the product in a safe
condition.
A CAUTION notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or
adhered to, could result in damage
to the product or loss of important
data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like
that, if not correctly performed or
adhered to, could resul t in personal
injury or death. Do not proceed
beyond a WARNING notice until the
indicated conditions are fully
understood and met.
2 2000/3000 X-Series Oscilloscopes Service Guide
In This Service Guide
This book provides the service information for the Keysight 2000/3000 X-Series
oscilloscopes. This manual is divided into these chapters:
1 Characteristics and Specifications
This chapter contains a partial list of characteristics and specifications for the
Keysight InfiniiVision 2000/3000 X-Series oscilloscopes.
2 Testing Performance
This chapter explains how to verify correct oscilloscope operation and perform
tests to ensure that the oscilloscope meets the performance specifications.
3 Calibrating and Adjusting
This chapter explains how to adjust the oscilloscope for optimum operating
performance.
4 Troubleshooting
This chapter begins with suggestions for solving general problems that you may
encounter with the oscilloscope. Procedures for troubleshooting the oscilloscope
follow the problem solving suggestions.
5 Replacing Assemblies
This chapter describes how to remove assemblies from the 2000/3000 X-Series
oscilloscope.
6 Replaceable Parts
This chapter describes how to order replaceable assemblies and parts for the
Keysight 2000/3000 X-Series oscilloscopes. It includes diagrams and parts lists
for hardware that you can order.
7 Safety Notices
At the front of the book you will find safety notice descriptions and document
warranties.
2000/3000 X-Series Oscilloscopes Service Guide 3
Digital Channels
Because all of the oscilloscopes in the Keysight 2000/3000 X-Series have analog channels, the analog
channel topics in this book apply to all instruments. Whenever a topic discusses the d igital channels,
that information applies only to Mixed-Signal Oscilloscope (MSO) models or DSO models that have
been upgraded to an MSO.
Abbreviated instructions for pressing a series of keys
Instructions for pressing a series of keys are written in an abbreviated manner. Instructions for pressing
Key1, then pressing Softkey2, then pressing Softkey3 are abbreviated as follows:
Press [Key1] & Softkey2 & Softkey3.
The keys may be front panel keys, or softkeys, which are located directly below the oscilloscope
display.
4 2000/3000 X-Series Oscilloscopes Service Guide
Contents
In This Service Guide / 3
Figures / 9
Ta b l e s / 1 1
1 Characteristics and Specifications
Power Requirements / 13
Measurement Category / 14
Measurement Category / 14
Measurement Category Definitions / 14
Maximum Input Voltage / 15
Environmental Conditions / 16
Specifications / 16
Contact us / 16
2 Testing Performance
Overview / 18
List of Test Equipment / 19
Conventions / 20
To construct the test connector (for use with MSO models
only) / 21
To test digital channels (MSO models only) / 23
To verify digital channel threshold accuracy (MSO models
only) / 24
When to Test / 24
2000/3000 X-Series Oscilloscopes Service Guide 5
Contents
What to Test / 24
Verifying Test Results / 24
To verify DC vertical gain accuracy / 28
To verify dual cursor accuracy / 35
To verify bandwidth (-3 dB) / 40
To verify time base accuracy / 45
To verify trigger sensitivity / 47
Test Internal Trigger Sensitivity (all models) / 48
Test External Trigger Sensitivity / 50
Keysight 2000 X-Series Oscilloscopes Performance Test
Record / 53
Keysight 3000 X-Series Oscilloscopes Performance Test
Record / 55
6 2000/3000 X-Series Oscilloscopes Service Guide
3 Calibrating and Adjusting
User Calibration / 58
To perform User Cal / 58
User Cal Status / 61
4 Troubleshooting
Solving General Problems with the Oscilloscope / 64
If there is no display / 64
If there is no trace display / 64
If the trace display is unusual or unexpected / 64
If you cannot see a channel / 65
Verifying Basic Operation / 66
To power-on the oscilloscope / 66
To perform hardware self test / 66
To perform front panel self test / 67
To verify default setup / 67
To perform an Auto Scale on the Probe Comp signal / 68
To compensate passive probes / 69
5 Replacing Assemblies
6Replaceable Parts
Ordering Replaceable Parts / 74
Listed Parts / 74
Unlisted Parts / 74
Direct Mail Order System / 74
Exchange Assemblies / 75
Exploded Views / 76
Replaceable Parts List / 77
7 Safety Notices
Contents
Warnings / 82
To clean the instrument / 83
Safety Symbols / 84
Index
2000/3000 X-Series Oscilloscopes Service Guide 7
Contents
8 2000/3000 X-Series Oscilloscopes Service Guide
Figures
Figure 1. Constructing the 8-by-2 Connector / 22
Figure 2. Setting Up Equipment for Digital Channel Threshold Accuracy Test / 26
Figure 3. Setting up Equipment for DC Vertical Gain Accuracy Test / 32
Figure 4. Using a Blocking Capacitor to Reduce Noise / 34
Figure 5. Setting up Equipment for Dual Cursor Accuracy Test / 38
Figure 6. Using a Blocking Capacitor to Reduce Noise / 39
Figure 7. Setting Up Equipment for Bandwidth (-3 dB) Verification Test / 41
Figure 8. Setting Up Equipment for Internal Trigger Sensitivity Test / 48
Figure 9. Setting Up Equipment for 4-Channel External Trigger Sensitivity
Test / 51
Figure 10. User Calibration cable for 2-channel oscilloscope / 60
Figure 11. User Calibration cable for 4-channel oscilloscope / 60
Figure 12. Default setup screen / 68
Figure 13. Example pulses / 70
Figure 14. Exploded View / 76
2000/3000 X-Series Oscilloscopes Service Guide 9
Figures
10 2000/3000 X-Series Oscilloscopes Service Guide
Tables
Table 1. List of test equipment / 19
Table 2. Conventions / 20
Table 3. Materials required to construct the test connectors / 21
Table 4. Equipment Required to Test Digital Channel Threshold Accuracy / 25
Table 5. Threshold Accuracy Voltage Test Settings / 27
Table 6. DC Vertical Gain Accuracy Test Limits / 28
Table 7. Equipment Required to Verify DC Vertical Gain Accuracy / 29
Table 8. Settings Used to Verify DC Vertical Gain Accuracy, 2000 X-Series
Models / 30
Table 9. Settings Used to Verify DC Vertical Gain Accuracy, 3000 X-Series
Models / 31
Table 10. Equipment Required to Verify Dual Cursor Accuracy / 35
Table 11. Settings Used to Verify Dual Cursor Accuracy, 2000 X-Series Models / 36
Table 12. Settings Used to Verify Dual Cursor Accuracy, 3000 X-Series Models / 37
Table 13. Bandwidth (-3 dB) Test Limits / 40
Table 14. Equipment Required to Verify Bandwidth (-3 dB) / 40
Table 15. Equipment Required to Verify Time Base Accuracy / 45
Table 16. Equipment Required to Verify Trigger Sensitivity / 47
Table 17. Replaceable Parts / 77
2000/3000 X-Series Oscilloscopes Service Guide 11
Tables
12 2000/3000 X-Series Oscilloscopes Service Guide
Keysight InfiniiVision 2000/3000 X-Series Oscilloscope
Service Guide
1 Characteristics and
Specifications
Power Requirements / 13
Measurement Category / 14
Environmental Conditions / 16
Specifications / 16
Contact us / 16
This chapter contains a partial list of characteristics and specifications for the
Keysight InfiniiVision 2000/3000 X-Series oscilloscopes.
For a full list of Keysight InfiniiVision 2000/3000 X-Series oscilloscopes
characteristics and specifications see the data sheets.
The data sheets are available at www.keysight.com/find/2000X-Series or
www.keysight.com/find/3000X-Series.
Power Requirements
Line voltage, frequency, and power:
• ~Line 100-120 Vac, 50/60/400 Hz
• 100-240 Vac, 50/60 Hz
• 100 W max
13
1 Characteristics and Specifications
WARNING
Measurement Category
Measurement Category
The InfiniiVision 2000/3000 X-Series oscilloscopes are not intended to be used for
measurements in Measurement Category II, III, or IV.
Use this instrument only for measurements within its specified measurement category
(not rated for CAT II, III, IV). No transient overvoltages allowed.
Measurement Category Definitions
The "Not rated for CAT II, III, IV" measurement category is for measurements
performed on circuits not directly connected to MAINS. Examples are
measurements on circuits not derived from MAINS, and specially protected
(internal) MAINS derived circuits. In the latter case, transient stresses are variable;
for that reason, the transient withstand capability of the equipment is made known
to the user.
Measurement category II is for measurements performed on circuits directly
connected to the low voltage installation. Examples are measurements on
household appliances, portable tools and similar equipment.
14 2000/3000 X-Series Oscilloscopes Service Guide
Measurement category III is for measurements performed in the building
installation. Examples are measurements on distribution boards, circuit-breakers,
wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the
fixed installation, and equipment for industrial use and some other equipment, for
example, stationary motors with permanent connection to the fixed installation.
Measurement category IV is for measurements performed at the source of the
low-voltage installation. Examples are electricity meters and measurements on
primary overcurrent protection devices and ripple control units.
Maximum Input Voltage
CAUTION
CAUTION
CAUTION
CAUTION
Maximum input voltage for analog inputs
135 Vrms
Do not exceed 5 Vrms in 50 Ω mode (3000 X-Series oscilloscopes only). Input protection
is enabled in 50 Ω mode, and the 50 Ω load will disconnect if greater than 5 Vrms is
detected. However, the input could still be damaged, depending on the time constant of
the signal. The 50 Ω input protection mode only functions when the oscilloscope is
powered on.
When measuring voltages over 30 V, use a 10:1 probe.
Characteristics and Specifications 1
Maximum input voltage for logic channels:
±40 V peak
2000/3000 X-Series Oscilloscopes Service Guide 15
1 Characteristics and Specifications
Environmental Conditions
Environment Indoor use only.
Specifications
Ambient
temperature
Humidity Operating: Up to 80% RH at or below +40
Altitude Operating and non-operating to 4,000 m (13,123 ft)
Overvoltage
Category
Pollution Degree The InfiniiVision 2000/3000 X-Series oscilloscopes may be operated in
Pollution Degree
Definitions
Please see the InfiniiVision 2000/3000 X-Series Oscilloscopes Data Sheet for
complete, up-to-date specifications and characteristics.
Operating 5 °C to +55 °C; non-operating –40 °C to +71 °C
°C. Up to 45% RH up to +50 °C.
Non-operating: Up to 95% RH up to +40 °C. Up to 45% RH up to +50 °C.
This product is intended to be powered by MAINS that comply to Overvoltage
Category II, which is typical of cord-and-plug connected equipment.
environments of Pollution Degree 2 (or Pollution Degree 1).
Pollution Degree 1: No pollution or only dry, non-conductive pollution occurs.
The pollution has no influence. Example: A clean room or climate controlled
office environment.
Pollution Degree 2. Normally only dry non-conductive pollution occurs.
Occasionally a temporary conductivity caused by condensation may occur.
Example: General indoor environment.
Pollution Degree 3: Conductive pollution occurs, or dry, non-conductive
pollution occurs which becomes conductive due to condensation which is
expected. Example: Sheltered outdoor environment.
To download a copy of the data sheet please visit:
www.keysight.com/find/2000X-Series or www.keysight.com/find/3000X-Series.
Contact us
To contact Keysight, see: www.keysight.com/find/contactus
16 2000/3000 X-Series Oscilloscopes Service Guide
Keysight InfiniiVision 2000/3000 X-Series Oscilloscope
Service Guide
2 Testing Performance
Overview / 18
List of Test Equipment / 19
To construct the test connector (for use with MSO models only) / 21
To test digital channels (MSO models only) / 23
To verify digital channel threshold accuracy (MSO models only) / 24
To verify DC vertical gain accuracy / 28
To verify dual cursor accuracy / 35
To verify bandwidth (-3 dB) / 40
To verify time base accuracy / 45
To verify trigger sensitivity / 47
Keysight 2000 X-Series Oscilloscopes Performance Test Record / 53
Keysight 3000 X-Series Oscilloscopes Performance Test Record / 55
This chapter explains how to verify correct oscilloscope operation and perform
tests to ensure that the oscilloscope meets the performance specifications.
17
2 Testing Performance
Overview
To completely test and troubleshoot MSO models, create and use the test
connector accessory as described in this chapter.
• The test connector is only required for oscilloscopes that have the MSO option
licensed (enabled).
• The connector is used in the digital channel threshold accuracy test.
• The test connector keeps electrical distortion to a minimum and makes it easy
for you to connect the oscilloscope probes to function generators and
measurement equipment.
Let the Equipment Warm Up Before Testing
For accurate test results, let the test equipment and the oscilloscope warm up 30
minutes before testing.
Verifying Test Results
During the tests, record the readings in the Performance Test Record on page 53.
To verify whether a test passes, verify that the reading is within the limits in the
Performance Test Record.
If a performance test fails
If a performance test fails, first perform the User Cal procedure. Press the following keys to access User
Cal: [Utility]→Service→Start User Cal.
18 2000/3000 X-Series Oscilloscopes Service Guide
Testing Performance 2
List of Test Equipment
Below is a list of test equipment and accessories required to perform the
performance test verification procedures.
Table 1 List of test equipment
Equipment Critical Specifications Recommended Model/ Part Number
Test connector, 8-by-2* See page 21 for instructions on building test
connector.
Digital Multimeter 0.1 mV resolution, 0.005% accuracy Keysight 34401A/34461A
Power Splitter Outputs differ by 0.15 dB Keysight 11667A
Precision Source DC voltage of -5.5 V to 35.5 V, 0.1 mV resolution Keysight B2912A/B2962A
Signal Generator 25 MHz, 100 MHz, 350 MHz, 500 MHz, and 1 GHz sine
waves
Power Meter 1 GHz
Power Sensor 1 GHz ±3% accuracy Keysight E9304A or N8482A
50 Ω BNC Cable (qty 3) BNC - BNC, 48” length Keysight 8120-1840
Cable Type N (m) 609.6 mm (24 in.) Keysight 11500B
Probe cable* No substitute 16-chanel: Keysight N6450-60001 or
Adapter (qty 2) BNC(f) to banana (m) Keysight 1251-2277
BNC Tee BNC Tee (m) (f) (f) Keysight 1250-0781† or Pomona 3285
Adapter Type N (m) to BNC (m) Keysight 1250-0082 or
* Required only for testing digital channels of oscilloscopes that have the MSO option.
Most parts and equipment are available at www.keysight.com. See respective manufacturer’s websites for their equipment.
†
These parts available at www.parts.keysight.com at the time this manual was published.
±3% accuracy Keysight N1914A
n/a
Keysight N5171B
†
N2756-60001
8-channel: Keysight N6459-60001 or
N2755-60001
Pomona 3288 with Pomona 3533
†
†
2000/3000 X-Series Oscilloscopes Service Guide 19
2 Testing Performance
Table 1 List of test equipment (continued)
Equipment Critical Specifications Recommended Model/ Part Number
Shorting cap BNC Keysight 1250-0774
Blocking capacitor Note: if a BNC blocking capacitor is not available use
an SMA blocking capacitor.
50 Ohm Feedthrough
Termination
* Required only for testing digital channels of oscilloscopes that have the MSO option.
Most parts and equipment are available at www.keysight.com. See respective manufacturer’s websites for their equipment.
†
These parts available at www.parts.keysight.com at the time this manual was published.
Ω BNC (f) to BNC (m) Keysight 0960-0301
50
Keysight 11742A +
Pomona 4289 +
Pomona 5088
Conventions
The following conventions will be used when referring to oscilloscope models
throughout this chapter.
Table 2 Conventions
Models Referred to as:
MSO-X /DSO-X 2002A, MSO-X /DSO-X 2004A 70 MHz Models
MSO-X /DSO-X 2012A, MSO-X /DSO-X 2014A
MSO-X /DSO-X 3012A, MSO-X /DSO-X 3014A
MSO-X /DSO-X 2022A, MSO-X /DSO-X 2024A
MSO-X /DSO-X 3024A
MSO-X /DSO-X 3032A, MSO-X /DSO-X 3034A 350 MHz Models
MSO-X /DSO-X 3052A, MSO-X /DSO-X 3054A 500 MHz Models
MSO-X /DSO-X 3102A, MSO-X /DSO-X 3104A 1 GHz Models
100 MHz Models
200 MHz Models
20 2000/3000 X-Series Oscilloscopes Service Guide
Testing Performance 2
To construct the test connector (for use with MSO models only)
Keysight 2000/3000 X-Series oscilloscopes that have digital channels enabled
require the test connector described below. Follow the steps to build the test
connector.
Table 3 Materials required to construct the test connectors
Description Recommended Part Qty
BNC (f) Connector Keysight 1250-1032 or
Pomona 4578
Berg Strip, 8-by-2 3M .100” x .100” Pin Strip
Header or similar
Jumper wire
1 Obtain a BNC connector and an 8-by-2 section of Berg strip. A longer strip can
be cut to length using wire cutters.
2 On one side of the Berg strip, solder a jumper wire to all of the pins (shown in
Figure 1 on page 22).
3 On the other side of the Berg strip, solder another jumper wire to all of the pins.
4 Solder the center of the BNC connector to a center pin on one of the rows on
the Berg strip.
5 Solder the ground tab of the BNC connector to a center pin on the other row on
the Berg strip.
1
1 strip, cut to length (8x2)
2000/3000 X-Series Oscilloscopes Service Guide 21
2 Testing Performance
Jumper (2)
Signal Lead
(from scope’s MSO cable)
8 x 2 Berg Strip
BNC Panel Mount Connector
Ground Lead
(from scope’s MSO cable)
Figure 1 Constructing the 8-by-2 Connector
22 2000/3000 X-Series Oscilloscopes Service Guide
To test digital channels (MSO models only)
The acquisition system testing provides confidence that the acquisition system is
functioning correctly. It does not, however, check a particular specification.
1 Disconnect all probes from the circuit under test and from any other input
source.
2 Using probe leads and grabbers, connect digital channels D0, D1, D2, and D3
to the Probe Comp signal on the center of the front panel.
3 Press the [AutoScale] key.
If four square waves appear, the acquisition system is functioning correctly.
If the square waves do not appear, go to the “Troubleshooting” chapter. Then
return here to finish testing the digital channels.
4 Disconnect the digital channels from the calibration point.
5 Use steps 2 and 3 to test the following sets of digital channels. After you test
one set of digital channels, remove them before connecting the next set.
• D4, D5, D6, D7
• D8, D9, D10, D11 (on 3000 X-Series models)
• D12, D13, D14, D15 (on 3000 X-Series models)
Testing Performance 2
2000/3000 X-Series Oscilloscopes Service Guide 23
2 Testing Performance
To verify digital channel threshold accuracy (MSO models only)
This test verifies the digital channel threshold accuracy specification of the
Keysight 2000/3000 X-Series oscilloscopes.
Threshold accuracy test limits: ±(100 mV + 3% of threshold setting)
When to Test
You should perform this test every 12 months or after 2000 hours of operation,
whichever comes first.
What to Test
Use these instructions to test the threshold settings of digital channels D7-D0.
Then, use the same instructions to test digital channels D15-D8 (on
3000 X-Series).
Verifying Test Results
After each threshold test, record the voltage reading in the Performance Test
Record on page 53. To verify whether a test passes, verify that the voltage reading
is within the limits in the Performance Test Record.
24 2000/3000 X-Series Oscilloscopes Service Guide
Testing Performance 2
Table 4 Equipment Required to Test Digital Channel Threshold Accuracy
Equipment Critical Specifications Recommended Model/Part
Digital Multimeter 0.1 mV resolution, 0.005% accuracy Keysight 34401A/34461A
Precision Source DC voltage of -5.5 V to 5.5 V, 10 mV resolution Keysight B2912A/B2962A
Adapter (qty 2) BNC(f) to banana (m) Keysight 1251-2277
BNC Tee BNC Tee (m) (f) (f) Keysight 1250-0781 or Pomona 3285
50 Ω BNC Cable BNC - BNC, 48” length Keysight 8120-1840
BNC Test Connector,
8-by-2
Probe Cable No substitute 16-chanel: Keysight N6450-60001 or
User-built (See page 21)
N2756-60001
8-channel: Keysight N6459-60001 or
N2755-60001
1 Turn on the test equipment and the oscilloscope. Let them warm up for 30
minutes before starting the test.
2 Set up the precision source.
a Set the precision source to provide a DC offset voltage at the Channel 1
output.
Note: Set the Low Force terminal of the Precision Source to its "Floating"
state to prevent offset error caused by ground loop current from the
Precision Source ground to the DUT ground.
b Use the multimeter to monitor the precision source DC output voltage.
3 Use the 8-by-2 test connector and the BNC cable assembly to connect digital
channels D0-D7 to one side of the BNC Tee. Then connect the D0-D7 ground
lead to the ground side of the 8-by-2 connector. See Figure 2.
2000/3000 X-Series Oscilloscopes Service Guide 25
2 Testing Performance
Precision Source
Probe
Cables
Channels
8 - 15
Channels
0 - 7
Test
Connector
2000/3000 X-Series Oscilloscope
Digital
Multimeter
BNC Tee
BNC-Bananna
Cable
Figure 2 Setting Up Equipment for Digital Channel Threshold Accuracy Test
4 Use a BNC-banana cable to connect the multimeter to the other side of the
BNC Tee.
5 Connect the BNC Tee to the Channel 1 output of the precision source as shown
in Figure 2.
6 On the oscilloscope, press the [Digital] key, then press the Thresholds softkey,
then press the D7 - D0 softkey repeatedly until the check mark is next to User.
26 2000/3000 X-Series Oscilloscopes Service Guide
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