As this article will demonstrate, the use of a digital oscilloscope can help speed up the troubleshooting process for industrial control systems and be more effective in pinpointing the exact nature of the problem. In auto mode oscilloscope will perform display refresh no matter triggers happen or not. Yo u will need a signal source as well as the oscilloscope. Hp 1980b oscilloscope troubleshooting and repair page 1.
Older style oscilloscopes display the wave on a cathode ray screen. Phys 112 the oscilloscope 5 level knob controls the voltage at which the trigger starts the sweep. I also discover that reading the manual is a good idea, before troubleshooting. View and download rigol ds1102e quick manual online. Troubleshooting problems when a bus doesnt work, or worse yet, works intermittently, goes beyond the bus traffic and into the realm of signal integrity. The 2465 series is regarded as one of the mostreliable analog oscilloscopes ever made, and proper. One important prerequisite for successful diagnosis is a careful visual inspection at the beginning of the troubleshooting process. Cominnovativescopes 3 how to troubleshoot system problems using an oscilloscope with i2c and spi decoding appication note i2c i2c, or i squared c, stands for interintegrated circuit.
It was originally developed by philips in the early 1980s to provide a lowcost way of connecting controllers to peripheral chips. Todays oscilloscopes have far more functionality than their old cathoderay tube crt analog counterparts. Phys 112 the oscilloscope 3 the vertical system accepts input signals and develops appropriate deflection voltages for the crt. Troubleshooting your oscilloscope vintagetek museum. Hantek2000 series handheld scopemeter user manual v1. Fluke 36 clamp meter rated at 600v, 600a ac, a dc id like to check the diode bridge rectifier, the igbt chips and the output diodes in circuit. Also included tektronix xyz of oscilloscopes 64 pages in adobe pdf format. Energy, vibrating particles and other invisible forces pervade our physical uni verse. Mar 24, 2011 can anyone point me to a really good book on how to troubleshoot circuits with an oscilloscope. General care the cabinet helps keep dust out of the oscilloscope and should normally be in place when operating the oscilloscope.
But troubleshooting a variable speed drive is always a challenge. Often these problems, emanating from signal integrity issues in the physical layer like crosstalk, noise, and improper termination are. Hp 1980b oscilloscope troubleshooting and repair page 1 eevblog electronics community forum. O s c i l l o s c o p e analog oscilloscope service manual 99 washington street melrose, ma 02176 phone 7816651400 toll free 18005178431 visit us at. If no triggers happen waveform display will stay unchanged. Page 32 maintenance how often you do maintenance depends on the severity of the environment in which the oscilloscope is used. Ignition coils in motor vehicles function, diagnosis. Oscilloscope restoration project repair tektronix 2465b 400mhz this applies to all similar type models 2445, 2445a, 2445b, 2465, 2465a, 2465b, 2467, 2467a, 2467b and others which share common circuit boards. Oscilloscopes are a type of signal analyzerthey show the experimenter a picture of the signal, usually in the form of a voltage versus time graph. Explain what the problem is, and how we might correct it so as to be able to. Troubleshooting modern electronic circuits literally demands the use of an oscilloscope, yet many service technicians experi lence difficulty in learning how to. Troubleshooting a tektronix 468 digital storage oscilloscope with blurry traces, noisy controls, and sticky switches. This guidebook is useful to those with little knowledge of oscilloscopes as well as the expe. Nature moves in the form of a sine wave, be it an ocean wave, earthquake, sonic boom, explosion, sound through air, or the natural frequency of a body in motion.
A proper time to perform preventive maintenance is just before oscilloscope adjustment. Topics oscilloscope, electrical engineering, vintage electronics. Verify correct operation of a test point in a circuit when troubleshooting or performing a. Because this is a twochannel scope there are two identical sets of vertical controls, one for each trace. I have read two so far how to use oscilloscopes and other test equipment by r. For a table of buses supported by different tektronix oscilloscopes, please see. To connect a probe that uses a bnc connector, push and turn the probe connector until it slides on the oscilloscope channel input connector. Such an instrument is obviously useful for the design and. Dcatrblshoot read the operators manual for safety instructions before you attempt to troubleshoot. Mal eiselman, nc4l nal generator nothing fancy is needed and. Waveform measurements with digital oscilloscopes 12.
This series of 10 oscilloscope demonstrations beginning with the simplest and moving to the more difficult is intended to give you an idea of what these amazing instruments are capable of doing in the new world of advanced electronics and to help increase your troubleshooting proficiency along the way. How to troubleshoot system problems using an oscilloscope with i2c and spi decoding appication note i2c i2c, or i squared c, stands for interintegrated circuit. In order to interpret the measuring results or images shown correctly, additional employee training is usually required. Primer xyzs of oscilloscopes university of colorado boulder. From the open eye in the eye diagram, you can conclude that the jitter on the clock signal is small. These tutorials will help you learn more about oscilloscope basics and compare oscilloscope models from key industry definitions to fundamental measurement concepts, such as how to use an oscilloscope and how an oscilloscope works. It was originally developed by philips in the early 1980s to provide a lowcost way of. In normal mode oscilloscope will only perform display refresh when there are triggers.
Power up the oscilloscope by pushing the power button. Tektronix troubleshooting your oscilloscope cdrom pdf. It is the most important of all the troubleshooting instruments. Use extreme caution when troubleshooting power equipment. Old analog two channel oscilloscope, with new aftermarket probes x10, x1, a device i have little experience with. Oscilloscope lexicon learning how to use an oscilloscope means being introduced to an entire lexicon of terms. Since its invention more than 100 years ago, new types, features and functionalities have been introduced. The power adapter can be used to supply the oscilloscope or charge the battery. The oscilloscope is small, lightweight, no external power required, portable oscilloscopes. Penfold and another troubleshooting with your triggered sweep oscilloscope by.
O s c analog oscilloscope service manual l o s c o p e. Troubleshoot an audio amplifier with an oscilloscope simply. When a digital oscilloscope is connected to the output of the rotary encoder, it can display the signals average voltage 2. An oscilloscope can display the shape of an input signal wave, enabling you to observe waves and test electrical currents. It has two independent input channels, a and b, an input for an external trigger and a ground. Blocks and their functions how does an oscilloscope work.
Ga1102cal users manual a users manual for attens ga1102cal 100mhz oscilloscope. Theory the oscilloscope, or scope for short, is a device for drawing calibrated graphs of voltage vs time very quickly and conveniently. When connect the power adapter to the oscilloscope, if the battery is not installed. The art of debugging circuits massachusetts institute of. A few years ago i found this wonderful tektronix manual on analog oscilloscope diagnostics appropriately titled troubleshooting your oscilloscope. Hvac troubleshooting guide this page intentionally left blank hvac troubleshooting guide rex miller new york chica. When triggers are detected wav efo rm d isplay wil b th nce to trigger points. Oscilloscope fundamentals case school of engineering. Basic oscilloscope operation this worksheet and all related. Tos1 troubleshooting withthe oscilloscope byrobertg. An oscilloscope is analogous to a camera that captures signal images that we can then observe and interpret. Oscilloscopes are designed and built in blocks of circuits. The following are stepbystep instructions for the use of the hitachi v 212 and v222 oscilloscopes.
Characterizing and troubleshooting jitter with your. The slope button is used to specify whether the signal should have a positive or negative slope at the trigger voltage. Normal mode single mode is the same as normal mode except that oscilloscope will enter hold state after a trigger has been detected and waveform display has been updated. Penfold and another troubleshooting with your triggered sweep oscilloscope by robert goodman. How to troubleshoot system problems using an oscilloscope.
At first glance, the proliferation of all of those knobs. Troubleshooting with the oscilloscope pdf free download. This document is useful if you are having troubles operating the os cilloscope at the fundamental level. Tds and tds2000 series digital storage oscilloscope user. Oscilloscope uses triggers as reference points in time for stable waveform display and measurements. Tektronix circuit concepts semiconductors oscilloscope. Troubleshooting with an oscilloscope electronics forum. The only reason i dont give it 5 stars is because some of the images are difficult to make out. The oscilloscopes is ideal for production test, research and design and all of the applications involving analog circuits test and troubleshooting, as well as education and training. In order to use an oscilloscope to its best advantage, the technician and engineer should have a basic understanding of how an oscilloscope works as well as a good understanding of the oscilloscopes controls, features, and operating modes.
The oscilloscope is equipped with a power adapter and the interface is typec. Break signals do not change oscilloscope settings or stored data and do not interrupt frontpanel operation or. This text is out of print but still quite relevant. Troubleshoot rotary encoder with multimeter and oscilloscope. A technician prepares to use an oscilloscope to display an ac voltage signal. The source of the triggering signal is chosen with a set of switches. You can use an oscilloscope to test your audio amplifier for blown fuses, improper biasing, signal distortion, and other sources of poor sound fidelity. The xyzs of oscilloscopes pdf a great indepth introduction to oscilloscopes. The ewb oscilloscope provides a fairly close approximation of a real one. Energy, vibrating particles, and other invisible forces are everywhere in our physical universe. Mar 31, 2017 troubleshooting a tektronix 468 digital storage oscilloscope with blurry traces, noisy controls, and sticky switches.
Page 1 soldering hints dso 8 oscilloscope diy kit 14. Troubleshoot an audio amplifier with an oscilloscope. Typical oscilloscope controls, features, and theory of operation. Xyzs of oscilloscopes the oscilloscope is an essential tool if you plan to design or repair electronic equipment. This is a near 100 page document of troubleshooting tips and procedures for a typical analog scope. On this page well introduce some of the important oscope buzzwords you should be familiar with before turning one on. It can show you the time dependence of the signals in your circuit. Tds and tds2000 series digital storage oscilloscope. Of the numerous service technicians who have difficulty in employing an oscilloscope, many own or have used one, but. Click on the table of contents page 3 use the navigation at the top of each page to jump to sections or use the page forwardback arrows use the arrow keys on your keyboard use the scroll wheel on your mouse.
Electrolytic capacitors user manual put leads through mounting holes from the side with part outline. Swift 16671745 objective to learn to operate a cathode ray oscilloscope. Tektronix 468 digital storage oscilloscope troubleshooting. Jan 23, 2014 a few years ago i found this wonderful tektronix manual on analog oscilloscope diagnostics appropriately titled troubleshooting your oscilloscope. While its specific to that scope, it still provides a nice. The oscilloscope is arguably one of the most useful general purpose tools ever created for use by electronic engineers. Sensors can convert these forces into electrical signals that. Im presently scrolling through the pdf scan on the keysight website in an attempt to get some troubleshooting hints and try to. Key oscilloscope specifications some scopes are better than others. The user can then study this picture to learn the amplitude, frequency, and overall shape of the signal which may depend on the physics being explored in the experiment. Break signals do not change oscilloscope settings or stored data and do not interrupt frontpanel operation or nonprogrammable functions. Soldering hints dso 8 oscilloscope diy kit user manual. This document oscilloscope diagnostics, a picoscope guide is step 1 in a 5 step training program that we have developed to guide those new to picoscope along their journey of scope diagnostics, from the very beginning. These tutorials will help you learn more about oscilloscope basics and compare oscilloscope models from key industry definitions to fundamental measurement concepts, such as how to use an oscilloscope and how an oscilloscope works you can also access more intermediate information about different oscilloscope applications, including serial data, power.
Push the frontpanel default setup button to set the oscilloscope to a known starting point. One other possibility is a low tech sigtroubleshooting radios before you pack it up and ship it off, check it out yourself. Can anyone point me to a really good book on how to troubleshoot circuits with an oscilloscope. How to use an oscilloscope youtube great oscope explanation straight from the makers of scopes tektronix. The oscilloscope vision is the art of seeing things invisible. Some introductory exercises for students in the advanced labs introduction so many of the experiments in the advanced labs make use of oscilloscopes and function generators that it is useful to learn their general operation. Never start or run power equipment inside a closed area, breathing exhaust fumes can kill. Characterizing and troubleshooting jitter with your oscilloscope lictio ote figure 4 shows the analysis of another clock signal in the system, and it exhibits some different jitter characteristics. Mcfudge i havent had a chance to do much more with the scope since starting this thread, but in the off chance that you havent yet gotten them removed can tell you that the top and bottom covers are secured by a single screw each.
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