Agilent Technologies 1000A Series User manual

s1
Agilent 1000A Series
Oscilloscopes
Service Guide

Agilent 1000A Series Oscilloscopes Service Guide
Notices
© Agilent Technologies, Inc. 2009, 2013
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation
into a foreign language) without prior agree-
ment and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
54130-97015
Edition
Third Edition, April 2013
Available in electronic format only
Agilent Technologies, Inc.
1900 Garden of the Gods Road
Colorado Springs, CO 80907 USA
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Agilent disclaims all warranties,
either express or implied, with regard
to this manual and any information
contained herein, including but not
limited to the implied warranties of
merchantability and fitness for a par-
ticular purpose. Agilent shall not be
liable for errors or for incidental or
consequential damages in connec-
tion with the furnishing, use, or per-
formance of this document or of any
information contained herein. Should
Agilent and the user have a separate
written agreement with warranty
terms covering the material in this
document that conflict with these
terms, the warranty terms in the sep-
arate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a license
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dance with the terms of such license.
Restricted Rights Legend
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ware and technical data rights granted to
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for the Department of Defense, DFARS
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Items) and DFARS 227.7202-3 (Rights in
Commercial Computer Software or Com-
puter Software Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing 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.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.
See also Appendix A, “Safety Notices,”
starting on page 41.

Agilent 1000A Series Oscilloscopes Service Guide 3
Agilent 1000A Series Oscilloscopes—At a Glance
The Agilent 1000A Series oscilloscopes are low-cost portable
digital storage oscilloscopes (DSOs) that deliver these
powerful features:
• Two and four- channel, 60 MHz, 100 MHz, and 200 MHz
bandwidth models.
• Bright 5.7 inch QVGA (320 x 240) TFT color LCD display
and small footprint (to save bench space).
•Upto2GSa/ssamplerate.
• Up to 20 kpts memory.
• Up to 400 wfms/s refresh rate.
• Automatic voltage and time measurements (22) and
cursor measurements.
• Powerful triggering (edge, pulse width, video, pattern, and
alternate modes) with adjustable sensitivity (to filter
noise and avoid false triggers).
• Math function waveforms: add, subtract, multiply, FFT.
• USB ports (2 host, 1 device) for easy printing, saving, and
sharing of waveforms, setups, screen BMP files, and CSV
data files.
• Internal storage for 10 waveforms and 10 setups.
• Special digital filter and waveform recorder.
• Built- in 6- digit hardware frequency counter.
• Multi- language (11) user interface menus and built- in
help.
Table 1 Agilent 1000A Series Oscilloscope Models
Channels
Input Bandwidth (Maximum Sample Rate, Memory)
200 MHz
(1-2 GSa/s,
10-20 kpts)
100 MHz
(1-2 GSa/s,
10-20 kpts)
60 MHz
(1-2 GSa/s,
10-20 kpts)
4 channel DSO1024A DSO1014A DSO1004A
2 channel DSO1022A DSO1012A DSO1002A

4 Agilent 1000A Series Oscilloscopes Service Guide
In This Book
This guide contains service information for the Agilent
1000A Series oscilloscopes.
1Service
Describes oscilloscope maintanance, performance testing, and
what to do if your oscilloscope requires service.

Agilent 1000A Series Oscilloscopes Service Guide 5
Contents
Agilent 1000A Series Oscilloscopes—At a Glance 3
In This Book 4
Figures 7
Tables 9
1Service11
Cleaning the Oscilloscope 12
Testing Performance 13
Before Testing Performance 14
To test DC gain accuracy 16
To test analog bandwidth, maximum frequency 21
To test time scale accuracy 29
To test trigger sensitivity 32
Performance Test Record 35
Returning the Oscilloscope to Agilent for Service 39
Contacting Agilent 40
ASafetyNotices41
Warnings 41
Safety Symbols 42
Index 43

6 Agilent 1000A Series Oscilloscopes Service Guide
Contents

Agilent 1000A Series Oscilloscopes Service Guide 7
Figures
Figure 1. Averages Menu Item 17
Figure 2. Connecting Equipment for DC Gain Accuracy Test 18
Figure 3. Vavg Menu Item 19
Figure 4. Connecting Equipment for Maximum Frequency Check Test 23
Figure 5. Channel 1 Vertical Scale Setting 24
Figure 6. Channel 1 Horizontal Scale Setting 24
Figure 7. Averages Menu Item 25
Figure 8. Signal Generator Waveform 26
Figure 9. Connecting Equipment for Time Scale Accuracy Test 30
Figure 10. Connecting Equipment for Trigger Sensitivity Test 33

8 Agilent 1000A Series Oscilloscopes Service Guide
Figures

Agilent 1000A Series Oscilloscopes Service Guide 9
Tables
Table 1. Agilent 1000A Series Oscilloscope Models 3
Table 2. Equipment Required to Perform All Tests 14
Table 3. DC Gain Accuracy Specification 16
Table 4. Equipment Required for DC Gain Accuracy Test 16
Table 5. Analog Bandwidth Specification 21
Table 6. Equipment Required for Analog Bandwidth Test 22
Table 7. Oscilloscope Models and Signal Generator Frequency 27
Table 8. Time Scale Accuracy Specification 29
Table 9. Equipment Required for Time Scale Accuracy Test 30
Table 10. Trigger Sensitivity Specification 32
Table 11. Equipment Required for Trigger Sensitivity Test 32
Table 12. Performance Test Information 35
Table 13. DC Gain Test 35
Table 14. Analog Bandwidth - Maximum Frequency Check 37
Table 15. Time Scale Accuracy 38
Table 16. Trigger Sensitivity 38

10 Agilent 1000A Series Oscilloscopes Service Guide
Tables

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Agilent 1000A Series Oscilloscopes
Service Guide
1
Service
Cleaning the Oscilloscope 12
Testing Performance 13
Performance Test Record 35
Returning the Oscilloscope to Agilent for Service 39
Contacting Agilent 40
This chapter describes oscilloscope maintanance, performance testing, and
what to do if your oscilloscope requires service.

1Service
12 Agilent 1000A Series Oscilloscopes Service Guide
Cleaning the Oscilloscope
If the instrument requires cleaning:
1Remove power from the instrument.
2Clean the external surfaces of the instrument with a soft cloth
dampened with a mixture of mild detergent and water.
3Make sure that the instrument is completely dry before reconnecting it
to a power source.
CAUTION
Do not use too much liquid in cleaning the oscilloscope. Water can enter the
oscilloscope’s front panel, damaging sensitive electronic components.

Service 1
Agilent 1000A Series Oscilloscopes Service Guide 13
Testing Performance
This section documents performance test procedures. Performance
verification for the products covered by this manual consists of three main
steps:
•Performing the internal product self- tests to ensure that the
measurement system is functioning properly.
•Calibrating the product.
•Testing the product to ensure that it is performing to specification.
Performance Test
Interval
The procedures in this section may be performed for incoming inspection
and should be performed periodically to verify that the oscilloscope is
operating within specification. The recommended test interval is once per
year or after 2000 hours of operation. Performance should also be tested
after repairs or major upgrades.
Performance Test
Record
A test record form is provided at the end of this section. This record lists
performance tests, test limits and provides space to record test results.
Test Order The tests in this section may be performed in any order desired. However,
it is recommended to conduct the tests in the order presented in this
manual as this represents an incremental approach to performance
verification. This may be useful if you are attempting to troubleshoot a
suspected problem.
Test Equipment Lists of equipment needed to conduct each test are provided for each test
procedure. The procedures are written to minimize the number and types
of oscilloscopes and accessories required. The oscilloscopes in these lists
are ones that are currently available for sale by Agilent at the time of
writing this document. In some cases, the test procedures use features
specific to the oscilloscopes in the recommended equipment list. However,
with some modification to the test procedures, oscilloscopes, cables and
accessories that satisfy the critical specifications in these lists may be
substituted for the recommended models with some modification to the
test procedures.
Contact Agilent Technologies (see page 40) for more information about the
Agilent products in these lists.

1Service
14 Agilent 1000A Series Oscilloscopes Service Guide
Before Testing Performance
Table 2 Equipment Required to Perform All Tests
Description Required for Test Critical Specifications Recommended
Model/Part Numbers
Digital Multimeter DC Gain Accuracy DC voltage measurement accuracy better
than ±0.1% of reading
Agilent 34401A
Power Supply DC Gain Accuracy 0 V to 35 V DC; 10 mV resolution Agilent E3633A or
Agilent E3634A
Signal Generator Analog Bandwidth
Time Scale Accuracy
Trigger Sensitivity
100 kHz to 1 GHz at 200 mVrms, 0.01 Hz
frequency resolution, jitter: < 2 ps
Agilent 8648A,
Agilent E4400B, or
Agilent N5181A.
Power Meter Analog Bandwidth Agilent E-series with power sensor
compatibility
Agilent E4418B
Power Sensor Analog Bandwidth 100 kHz to 1 GHz ±3% accuracy Agilent 8482A
Power Splitter Analog Bandwidth Outputs differ by < 0.15 dB Agilent 11667B
BNC Cable DC Gain Accuracy (qty 2)
Time Scale Accuracy
Trigger Sensitivity
50Ωcharacteristic impedance, BNC (m)
connectors
Agilent 8120-1840,
Agilent 10503A
BNC Tee Adapter DC Gain Accuracy BNC Tee (m)(f)(f) Agilent 1250-0781
BNC to Dual Banana
Adapter
DC Gain Accuracy (qty 2) BNC (f) to dual banana Agilent 1251-2277
SMA Cable Analog Bandwidth SMA (m) to SMA (m) 24 inch
50ΩBNC Feed
Through Adapter
Analog Bandwidth
Trigger Sensitivity
50ΩBNC (f) to BNC (m) feed through
terminator
Agilent 0960-0301
Type-N to SMA
Adapter
Analog Bandwidth Type-N (m) to SMA (f) Agilent 1250-1250
SMA to BNC Adapter Analog Bandwidth SMA (m) to BNC (m) Agilent 1250-0831
Type-N to BNC
Adapter
Trigger Sensitivity Type-N (m) to BNC (f) Agilent 1250-0780

Service 1
Agilent 1000A Series Oscilloscopes Service Guide 15
Calibration
1Push the [Utility] key on the front panel.
2In the Utility menu, press Self-Cal.
3Follow the on- screen instructions.
NOTE
Let the oscilloscope warm up before testing.
The oscilloscope under test must be warmed up (with the oscilloscope application running)
for at least 30 minutes prior to the start of any performance test.

1Service
16 Agilent 1000A Series Oscilloscopes Service Guide
To test DC gain accuracy
1Disconnect all cables from the oscilloscope channel inputs.
2Press the [Default Setup] front panel key.
3Press the [Acquire] front panel key.
4In the Acquire menu, press the Acquisition softkey until “Average”
appears.
5Press the Averages softkey and turn the entry knob until “256”
appears.
CAUTION
Ensure that the input voltage to the oscilloscope never exceeds 300 Vrms.
Table 3 DC Gain Accuracy Specification
DC Gain Accuracy 2 mV/div to 5 mV/div: ±4.0% full scale
10 mV/div to 5 V/div: ±3.0% full scale
Full scale is defined as 8 vertical divisions. The major scale settings are 2 mV, 5 mV, 10 mV, 20 mV,
50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2 V, and 5 V.
Table 4 Equipment Required for DC Gain Accuracy Test
Description Critical Specifications Recommended
Model/Part Numbers
Power Supply 0 V to 35 V DC; 10 mV resolution Agilent E3633A or
Agilent E3634A
Digital Multimeter DC voltage measurement accuracy better
than ±0.1% of reading
Agilent 34401A
BNC Cable (qty 2) 50Ωcharacteristic impedance, BNC (m)
connectors
Agilent 8120-1840,
Agilent 10503A
BNC Tee Adapter BNC Tee (m)(f)(f) Agilent 1250-0781
BNC to Dual Banana
Adapter (qty 2)
BNC (f) to dual banana Agilent 1251-2277

Service 1
Agilent 1000A Series Oscilloscopes Service Guide 17
6Set the channel 1 probe attenuation to 1X.
7Set the channel 1 vertical sensitivity value to 2 mV/div.
8Set the power supply to +6 mV.
9Connect the equipment as shown in Figure 2.
Figure 1 Averages Menu Item

1Service
18 Agilent 1000A Series Oscilloscopes Service Guide
10 Press [Measure].
11 Press the Voltage softkey.
12 Turn the entry knob to select the Vavg measurement as shown
below.
Oscilloscope
Power Supply
BNC tee
Digital Multimeter
BNC (f)
to dual
banana
Figure 2 Connecting Equipment for DC Gain Accuracy Test

Service 1
Agilent 1000A Series Oscilloscopes Service Guide 19
13 For each of channel 1’s vertical sensitivities in the DC Gain Test section
of the “Performance Test Record” on page 35:
aFor the positive (+) power supply setting:
iRecord the DMM voltage reading as VDMM+.
ii Record the oscilloscope Vavg reading as VScope+.
bFor the negative (- ) power supply setting:
iRecord the DMM voltage reading as VDMM- .
ii Record the oscilloscope Vavg reading as VScope- .
cCalculate the DC Gain using the following expression and record this
value in the DC Gain Test section of the Performance Test Record:
14 Repeat step 15 through step 23 for channel 2 on two-channel
oscilloscope models or for channels 2, 3, and 4 on four- channel models.
15 Set the power supply voltage to +6 mV.
16 Move the BNC cable from the previously tested channel to the channel
you are currently testing.
Figure 3 Vavg Menu Item
Vavg
measurement
DCGain = ΔVout
ΔVin
---------------= Vscope+– Vscope-
VDMM+– VDMM-
--------------------------------------------

1Service
20 Agilent 1000A Series Oscilloscopes Service Guide
17 Press the [Default Setup] front panel key.
18 Set the channel’s probe attenuation to 1X.
19 Set the channel’s vertical sensitivity value to 2 mV/div.
20 Press [Measure].
21 Press the Voltage softkey.
22 Turn the entry knob to select the Vavg measurement.
23 For each of the channel’s vertical sensitivities in the DC Gain Test
section of the “Performance Test Record” on page 35:
aFor the positive (+) power supply setting:
iRecord the DMM voltage reading as VDMM+.
ii Record the oscilloscope Vavg reading as VScope+.
bFor the negative (- ) power supply setting:
iRecord the DMM voltage reading as VDMM- .
ii Record the oscilloscope Vavg reading as VScope- .
cCalculate the DC Gain using the following expression and record this
value in the DC Gain Test section of the Performance Test Record:
DCGain = ΔVout
ΔVin
---------------= Vscope+– Vscope-
VDMM+– VDMM-
--------------------------------------------