HP HP 54600B Manual
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54600/1/2/3B Oscilloscope User & Service Guide
54600-97021
November 1997
General-Purpose Oscilloscopes
The HP 54600B-Series Oscilloscopes offer exceptional waveform
viewing and measurements in a small, lightweight package. The
two-channel HP 54600B and HP 54603B are suited for production,
field service, and education applications. The four-channel
HP 54601B is best suited for research and design labs, and
applications involving digital circuit test and troubleshooting. For
higher frequency applications, the HP 54602B provides 150 MHz
bandwidth and triggering up to 250 MHz. Each of these oscilloscopes
gives you:
•60-MHz bandwidth (HP 54603B)
100-MHz bandwidth (HP 54600B and HP 54601B)
150-MHz bandwidth (HP 54602B)
•Automatic setup of the front panel
•Automatic and cursor measurements of frequency, time, and voltage
•Waveform storage
•Save and recall of 16 front-panel setups
•Peak detect
These oscilloscopes are easy to use with familiar controls and high
display update rate, but with none of the viewing problems that are
associated with analog oscilloscopes. A bright, crisp display is
obtained at all sweep speeds and delayed sweep magnifications.
Storage is as simple as pressing a button. Negative time allows the
viewing of events that occur before the trigger event. Cursors and
automatic measurements greatly simplify the analysis of these events.
You can upgrade this oscilloscope for hardcopy or remote control with
the addition of an interface module. Unattended waveform
monitoring and additional waveform math, such as FFT, can be added
with the addition of one of the Measurement/Storage modules.
ii
Bring your scope and PC together with BenchLink software.
BenchLink, which runs under Windows, allows easy transfer of scope
traces and waveform data to your PC for incorporation into
documents or storage.
Accessories supplied
•Two 1.5 meter, 10:1 Probes (HP 10071A)
•Power cord for country of destination
•This User and Service Guide
•Programmer’s Guide with Microsoft Windows Help file, ascii help
file, and sample programs.
Accessories available
•HP 34810B BenchLink/Scope Software for Windows
•HP 54650A HP-IB Interface Module
•HP 54652A Parallel Interface Module
•HP 54654A Operator’s Training Kit
•HP 54655A and HP 54656A Test Automation Modules
•HP 54657A HP-IB Measurement Storage Module
•HP 54659B Serial/Parallel Measurement/Storage Modules
•HP 5041-9409 Carrying Case
•HP 5062-7345 Rackmount Kit
•HP 10070A 1.5 meter, 1:1 Probe
•HP 10100C 50 ΩTermination
iii
Options available
•Option 001 RS-03 Magnetic Interference Shielding Added to CRT
•Option 002 RE-02 Display Shield Added to CRT
•Option 005 Enhanced TV/Video Trigger (HP 54602B only)
•Option 090 Deletes Probes
•Option 101 Accessory Pouch and Front-Panel Cover
•Option 102 Two Additional HP 10071A 10:1 Probes (HP 54602B
only)
•Option 103 Operator’s Training Kit (HP 54654A)
•Option 104 Carrying Case (HP 5041-9409)
•Option 106 BenchLink/Scope Software (HP 34810B)
•Option 1CM Rackmount Kit (HP 5062-7345)
•Power Cords (see the table of Replaceable Parts at the end of
Chapter 4, Service.)
iv
In This Book
This manualistheuser andservice
guidefor the HP 54600B,HP 54601B,
HP 54602B, andHP 54603B
Oscilloscopes, and contains five
chapters.
First TimeUsersChapter 1is a quick
start guide that givesyou a brief overview
of the oscilloscope.
Advanced usersChapter 2 is a seriesof
exercises that guide you through the
operationof theoscilloscope.
TV/Video triggeringChapter 3 shows
how touseenhanced TV/Video triggering
if youhaveOption005installedinyour
oscilloscope.
Service techniciansChapter 4
contains the serviceinformation for the
oscilloscope. There are procedures for
verifying performance, adjusting,
troubleshooting,and replacing assemblies
in the oscilloscope.
Reference informationChapter 5lists
thecharacteristics of the oscilloscope.
The Oscilloscope at a Glance
1
OperatingYour Oscilloscope
2
Using Option 005 Enhanced
TV/Video Trigger (HP 54602B)
3
Service
4
Performance Characteristics
5
Glossary
Index
v
vi
Contents
1 The Oscilloscope at a Glance
To inspect the instrument 1–6
To clean the instrument 1–6
To connect a signal to the oscilloscope 1–7
To display a signal automatically 1–9
To set up the vertical window 1–10
To set up the time base 1–12
To trigger the oscilloscope 1–14
To use roll mode 1–16
2 Operating Your Oscilloscope
To use delayed sweep 2–3
To use storage oscilloscope operation 2–6
To capture a single event 2–8
To capture glitches or narrow pulses 2–10
To trigger on a complex waveform 2–12
To make frequency measurements automatically 2–14
To make time measurements automatically 2–16
To make voltage measurements automatically 2–19
To make cursor measurements 2–22
To view asynchronous noise on a signal 2–26
To reduce the random noise on a signal 2–28
To save or recall traces 2–31
To save or recall front-panel setups 2–32
To reset the instrument setup 2–33
To use the XY display mode 2–34
To analyze video waveforms 2–38
Contents–1
3 Using Option 005 Enhanced TV/Video Trigger (HP 54602B)
To select TV display grid 3–4
To autoscale on a video signal 3–4
To trigger on a specific line of video 3–5
To trigger on all TV line sync pulses 3–7
To trigger on a specific field of the video signal 3–8
To trigger on all fields of the video signal 3–9
To trigger on odd or even fields 3–10
To make cursor measurements 3–12
To use delayed sweep 3–14
To analyze video waveforms with Option 005 3–16
To window in on harmonic distortion using FFT 3–18
To connect to other instruments 3–20
4Service
To return the oscilloscope to Hewlett-Packard 4–4
Verifying Oscilloscope Performance 4–5
To check the output of the DC CALIBRATOR 4–6
To verify voltage measurement accuracy 4–7
To verify bandwidth 4–10
To verify bandwidth (alternate method) 4–12
To verify horizontal ∆t and 1/∆t accuracy 4–16
To verify trigger sensitivity 4–18
To verify Vertical Output on Option 005 4-22
Contents
Contents–2
Adjusting the Oscilloscope 4–27
To adjust the power supply4–28
To performthe self-calibration4–31
To adjust the low-frequency compensation4–33
To adjustthe high-frequency pulse response4–35
To adjust the display4–37
To adjust the Option005 offset (R15)(HP54602B only)4–39
TroubleshootingtheOscilloscope 4–40
To construct your own dummy load 4–41
To check out the oscilloscope4–42
To check the Low Voltage Power Supply4–45
To run the internal self-tests 4–46
To troubleshoot Option 005 (HP 54602B only)4–48
Replacing Parts in the Oscilloscope4–49
To replace anassembly4–50
To removethefan 4–51
To removethefrontpanel4–51
To removethedisplay 4–53
To removethesystem board 4–53
Power supply4–54
Keyboard 4–55
To removethehandle 4–56
To remove the Option 005 board 4–56
To order a replacement part 4–57
Contents
Contents–3
5 Performance Characteristics
Vertical System 5–3
Horizontal System 5–5
Trigger System 5–6
XY Operation 5–8
Display System 5–8
Acquisition System 5–9
Advanced Functions 5–10
Power Requirements 5–10
General 5–11
Option 005 General Performance Characteristics (HP 54602B only) 5–13
Option 005 Trigger System (HP 54602B only) 5–14
Glossary
Index
Contents
Contents–4
1
The Oscilloscope at a Glance
TheOscilloscopeat a Glance
Oneofthe first things you will want todowithyour new oscilloscope
isto becomeacquainted with its front panel. Therefore, we have
written the exercises in thischapter to familiarize you with some ofits
controls.
The front panelhasknobs, greykeys, andwhite keys.The knobsare
usedmostoften andare similar tothe knobsonother oscilloscopes.
The grey keysbringupsoftkey menus on the displaythat allow you
access tomany oftheoscilloscope features. Thewhite keys are
instant actionkeys andmenusare not associatedwiththem.
Throughoutthisbook, the front-panelkeys are denoted by abox
aroundthe nameof the key, andsoftkeys are denotedbya changein
thetext type. For example, Sourceis the greyfront-panel key
labeledsource under the trigger portion ofthe front panel, and
Lineisa softkey.The word Line is at thebottom of the display
directlyabove anunlabeledsoftkey (whichisalso grey).
1–2
Figure 1-1 isa diagram ofthefront-panel controls andinput
connectors oftheHP 54600Band HP 54603B.Figure1-2 is a diagram
ofthe front-panel controls andinput connectors oftheHP 54601B
andHP 54602B.
Figure 1-3 isa statusline example on the HP 54602B.The statusline,
located at the top ofofthe display,letsyou quickly determinethe
setupofthe oscilloscope.Inthischapteryouwill learn to read at a
glance the setup ofthe oscilloscope fromthe statusline.
Figure 1-4 isa diagram showing which greykeys topressto bring up
thevarioussoftkey menus.
HP 54600B and HP54603B FrontPanelControls
Trigger
controls
Storage
keys
Horizontal
controls
General
controls
Channel
controls
Channel
inputs
External
trigger input
Figure 1–1
The Oscilloscope ata Glance
1–3
HP 54601B and HP 54602B Front Panel Controls
HP 54602B Display Status Line Indicators
Channel
controls
Channel
inputs
Storage
keys
General
controls Horizontal
controls
Trigger
controls
Figure 1–2
Channel3 is off
Channel 1 is on,ac coupled, inverted, 100 mV/div
Channel 2 is on, 4V/div
Mainsweep500µs/div
Delayedsweepison,500ns/div
Autostore is on
Auto triggered,positive
slope;triggersourceis
channel 1
Peak detectis on and operating
Channel4 is on,10 V/div
Figure 1–3
1–4
Softkey Menu Reference
Press this key To obtain this menu
Figure1–4
To obtain thismenuPress this key
1–5
To inspect the instrument
Inspect the shipping container for damage.
Keep a damaged shipping container or cushioning material until the contents
of the shipment have been checked for completeness and the instrument has
been checked mechanically and electrically.
Check the accessories.
Accessories supplied with the instrument are listed in "Accessories Supplied"
in the front of this manual.
•If the contents are incomplete or damaged notify your HP sales office.
Inspect the instrument.
•If there is mechanical damage or defect, or if the instrument does not
operate properly or pass performance tests, notify your HP sales office.
•If the shipping container is damaged, or the cushioning materials show
signs of stress, notify the carrier as well as your HP sales office. Keep the
shipping materials for the carrier’s inspection. The HP office will arrange
for repair or replacement at Hewlett-Packard’s option without waiting for
claim settlement.
To clean the instrument
If this instrument requires cleaning, disconnect it from all power sources and
clean it with a mild detergent and water. Make sure the instrument is
completely dry before reconnecting it to a power source.
The Oscilloscope at a Glance
To inspect the instrument
1–6
To connect a signal to the oscilloscope
The HP 54600B and HP 54603B are a two-channel oscilloscopes with an
external trigger input, while the HP 54601B and HP 54602B are four-channel
oscilloscopes. The four-channel oscilloscope replaces the external trigger
input with channels 3 and 4. In this exercise you connect a signal to the
channel 1 input.
To avoid damage to your new oscilloscope, make sure that the voltage level of
the signal you are using is less than or equal to 400 V (dc plus the peak ac).
For a complete list of the characteristics see chapter 5, "Performance
Characteristics."
•Use a cable or a probe to connect a signal to channel 1.
If you are using a probe, the oscilloscope allows you to enter the attenuation
factor for the probe. The attenuation factor changes the vertical scaling of
the oscilloscope so that the measurement results reflect the actual voltage
levels at the probe tip.
•To set the probe attenuation factor press 1 . Next toggle the Probe
softkey to change the attenuation factor to match the probe you are
using.
The Oscilloscope ata Glance
To connect asignal to the oscilloscope
1–7
Youshouldcompensate 10:1probes to matchtheircharacteristics to the
oscilloscope. A poorlycompensatedprobecanintroducemeasurement
errors. Tocompensate a probe, follow thesesteps.
1Connect the 10:1 probe fromchannel 1 to the front-panel probe adjust
signal on the oscilloscope.
2PressAutoscale .
3Use a nonmetallictool to adjustthe trimmer capacitor on the probe
for the flattest pulse possibleas displayed on theoscilloscope.
Undercompensation
causes pulserolloff.
Figure1–7
Correctcompensation
witha flat pulse top.
Figure 1–6
Overcompensation
causespulsepeaking.
Figure1–5
TheOscilloscope at a Glance
To connect asignal to the oscilloscope
1–8
To display a signal automatically
The oscilloscope has an Autoscale feature that automatically sets up the
oscilloscope to best display the input signal. Using Autoscale requires signals
with a frequency greater than or equal to 50 Hz and a duty cycle greater than
1%.
When you press the Autoscale key, the oscilloscope turns on and scales all
channels that have signals applied, and it selects a time base range based on
the trigger source. The trigger source selected is the highest numbered input
that has a signal applied. (If a signal is connected to the external trigger
input on the HP 54600B and HP 54603B, then it is selected as the trigger
source.)
1Connect a signal to the oscilloscope.
2Press Autoscale .
When you press the Autoscale key, the oscilloscope changes the front-panel
setup to display the signal. However, if you pressed the Autoscale key
unintentionally, you can use the Undo Autoscale feature. To use this feature,
perform the following step.
•Press Setup . Next, press the Undo Autoscale softkey.
The oscilloscope returns to the configuration in effect before you
pressed the Autoscale key.
The Oscilloscope ata Glance
To display a signalautomatically
1–9
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