HP 54750A Quick Start Manual

Digital communications analyzer, digitizing oscilloscope
Hide thumbs Also See for 54750A:

Advertisement

Quick Links

Quick Start Guide
HP 83480A Digital Communications
Analyzer
HP 54750A Digitizing Oscilloscope

Advertisement

Table of Contents
loading

Summary of Contents for HP 54750A

  • Page 1 Quick Start Guide HP 83480A Digital Communications Analyzer HP 54750A Digitizing Oscilloscope...
  • Page 2 Hewlett-Packard Com- exclusive remedies. Hewlett- tions of the instrument pany will, at its option, either Packard shall not be liable for HP Part No. 83480-90021 power line switch. repair or replace products any direct, indirect, special, Printed in USA which prove to be defective.
  • Page 3 If you are already familiar with the information in this book, you can refer to the HP 83480A, HP 54750A User’s Guide, which shows you how to use the instrument to make many common measurements. It assumes you have already learned how to use the front panel of the instrument, by first reading this quick start guide.
  • Page 4 General Safety Considerations General Safety Considerations This product has been designed and tested in accordance with IEC Publica- tion 1010, Safety Requirements for Electronic Measuring Apparatus, and has been supplied in a safe condition. The instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the product in a safe condition.
  • Page 5: Table Of Contents

    Contents 1 Introducing the Instrument The HP 83480A, HP 54750A—At a Glance 1-2 A Quick Tour of the Front Panel 1-4 2 Operating the Instrument Operating the Instrument 2-2 Equipment Used in These Exercises 2-4 Exercise 1. Installing a Plug-in Module 2-5 Exercise 2.
  • Page 6 Contents Contents-2...
  • Page 7: Introducing The Instrument

    Introducing the Instrument...
  • Page 8: The Hp 83480A, Hp 54750A-At A Glance

    NOTE The HP 83480A and HP 54750A mainframes do not accept plug-in modules designed for use with the HP 54710A and HP 54720A. The instrument also has software modularity by having a 3-1/2 inch disk drive and flash ROMs to allow for simple firmware upgrades of the firmware fea- tures.
  • Page 9 Introducing the Instrument The HP 83480A, HP 54750A—At a Glance What you’ll find in this chapter A Quick Tour of the Front Panel 1-4 Entry devices 1-4 Disk drive 1-4 CAL signal 1-4 Hardkeys 1-5 Display 1-5 Softkeys 1-6 Certification Hewlett-Packard Company certifies that this product met its published speci- fications at the time of shipment from the factory.
  • Page 10: A Quick Tour Of The Front Panel

    Introducing the Instrument A Quick Tour of the Front Panel A Quick Tour of the Front Panel This section describes how to use the front panel. This information will help you gain the full use of your instrument in the shortest possible time. This sec- tion divides the front panel into the following areas: •...
  • Page 11 Introducing the Instrument A Quick Tour of the Front Panel The two types of hardkeys are instant action and menu. Clear display and Run Hardkeys are examples of instant action keys because as soon as you press them, the instrument changes operating states. Time base and Trigger are examples of menu keys.
  • Page 12 Introducing the Instrument A Quick Tour of the Front Panel Figure 1-2. The instrument display Softkeys The softkeys are to the right of the display, and instead of placing a label on the softkey itself, the label is actually located on the display next to the soft- key.
  • Page 13 Introducing the Instrument A Quick Tour of the Front Panel The highlighted choice is the selection that is currently active. In Figure 1-3, triggered is highlighted, which indicates that the instrument is set to triggered sweep. Figure 1-3. Toggle softkey selection Menu softkeys A typical example of the menu softkeys is External Scale...
  • Page 14 Introducing the Instrument A Quick Tour of the Front Panel Figure 1-4. Menu softkey selection Continuous softkeys A typical example of the continuous softkeys is Level. It has a range of values that can be changed with the keypad, arrow keys, or knob. Figure 1-5.
  • Page 15 However, the Time base menu has at least two of this type of softkey, Bit Rate (HP 83480A only) and Scale and Position. In this case, only one of the softkeys is active at a time. To make the other softkey active, you must press the corresponding softkey.
  • Page 16 Introducing the Instrument A Quick Tour of the Front Panel You change selections by pressing the Hysteresis softkey, which brings up a sec- ond level softkey menu on the display. Then, you use the softkeys, arrow keys, or knob to change selections. To activate that selection, press the Enter softkey, then the display returns to the previous softkey menu.
  • Page 17: Operating The Instrument

    Operating the Instrument...
  • Page 18 Operating the Instrument Operating the Instrument Operating the Instrument This chapter contains several exercises that will familiarize you with the oper- ation of the instrument. Exercises 1–3 show how to get the instrument up and running. Exercises 4 and 5 demonstrate the vertical, horizontal, and trigger menus by having you display a signal and then use the channel and time base menus to expand the signal.
  • Page 19 Operating the Instrument Operating the Instrument What you’ll find in this chapter Equipment Used in These Exercises 2-4 Exercise 1. Installing a Plug-in Module 2-5 Exercise 2. Turning On the Instrument 2-6 Exercise 3. Connecting a Signal 2-7 Exercise 4. Finding the Signal 2-8 Exercise 5.
  • Page 20: Equipment Used In These Exercises

    All of the pictures of the display in this book were generated using an HP 83480A with an HP 83483A, 54751A electrical plug-in module, and the sig- nal from the HP 8133A pulse generator. If you are using a different plug-in module or signal source, your display and instrument settings may vary from the pictures in this book.
  • Page 21: Exercise 1. Installing A Plug-In Module

    NOTE In the examples to follow, it is assumed the HP 83483A or HP 54751A plug-in module is resident in slots 1 and 2 of the mainframe.
  • Page 22: Exercise 2. Turning On The Instrument

    If the display is blank or if the message, Power-On Test Failed, appears at the top of the display, refer to Chapter 3, “In Case of Difficulty” or to the optional HP 83480A, HP 54750A Service Guide.
  • Page 23: Exercise 3. Connecting A Signal

    4 Connect the pulse signal to the electrical input (channel 1) on the HP 83483A, 54751A electrical plug-in module. 5 Display the Setup menu (on the HP 83480A, HP 54750A) and select the default setup by pressing: Setup, Default setup The default setup puts the instrument in a predefined operating condition.
  • Page 24: Exercise 4. Finding The Signal

    Operating the Instrument Exercise 4. Finding the Signal Exercise 4. Finding the Signal The purpose of this exercise is to demonstrate the Autoscale function. The Autoscale function can be used to automatically set up the display for most input signals. To activate the Autoscale function, press Autoscale.
  • Page 25: Exercise 5. Modifying The Setup

    Operating the Instrument Exercise 5. Modifying the Setup Exercise 5. Modifying the Setup The purpose of this exercise is to show you the Channel and Time Base menus. Changing the vertical scale 1 To display the Channel menu and change the vertical scaling, press: Channel (located on the plug-in module), Scale Change the scaling so the vertical height of the signal is about eight divisions, using the knob, arrow keys or keypad.
  • Page 26 Exercise 5. Modifying the Setup Using the keypad When using the HP 83483A, 54751A electrical plug-in module, the knob or arrow key changes the scaling from 50 mV/div to 100 mV/div, in one step. At 50 mV/div the signal is clipped, and at 100 mV/div the signal is not expanded to take advantage of the full vertical size of the display.
  • Page 27 Operating the Instrument Exercise 5. Modifying the Setup Figure 2-2. Signal vertical display NOTE — HP 83480A only You can automatically adjust the vertical scale, instead of following the preceding proce- dure by pressing: Channel, Channel autoscale The amplitude scale is optimized for the input signal while the timebase settings are left alone.
  • Page 28 Operating the Instrument Exercise 5. Modifying the Setup Changing the time base 5 To display the Time Base menu and change the horizontal scale, press: Time base, Scale Use the knob, arrow keys or keypad to change the scaling so the horizontal width of the positive portion of the signal is about eight divisions.
  • Page 29 Operating the Instrument Exercise 5. Modifying the Setup Using the Position function 7 To horizontally center the signal on the display, press: Position The Position function moves the waveform horizontally on the display. (Posi- tion is sometimes referred to as delay.) The reference point is indicated by an arrow at the bottom of the display as shown in Figure 2-3.
  • Page 30: Exercise 6. Making Measurements On The Signal

    1. After that, you will make the same measurements using the automatic measurement features. There are many additional features built into the instrument. Refer to the HP 83480A, HP 54750A User’s Guide for more information on making automatic measurements.
  • Page 31 Operating the Instrument Exercise 6. Making Measurements on the Signal Positioning the markers 4 To position the X1 marker, press: X1 Position Set the X1 marker to the left edge of the pulse. 5 To position the X2 marker, press: X2 Position Set the X2 marker to the right edge of the pulse.
  • Page 32 Operating the Instrument Exercise 6. Making Measurements on the Signal Notice the ∆X and ∆Y at the bottom of the display. The ∆X value is the width measurement, and the ∆Y value is the amplitude measurement. The markers allow you to make custom measurements on signals. Remember, they are not tied directly to the waveform data stored in memory, they are just positions on the display.
  • Page 33 Operating the Instrument Exercise 6. Making Measurements on the Signal The automatic measurement results are placed on the display where the verti- cal scale and offset values are normally displayed as shown in Figure 2-5. Figure 2-5. Signal automatic measurements Displaying the scale and offset values 10 To redisplay the vertical scale and offset values, press: Shift, Clr meas...
  • Page 34: Exercise 7. Using The Help Menu

    Operating the Instrument Exercise 7. Using the Help Menu Exercise 7. Using the Help Menu To display the Help menu, press Help. A screen similar to Figure 2-6 is dis- played. Figure 2-6. The instrument Help menu A three-column index appears on the display. The left column lists the fea- tures of the instrument, the middle column lists the front-panel key, and (if needed) the right column lists the softkey you press to find that feature.
  • Page 35: In Case Of Difficulty

    In Case of Difficulty...
  • Page 36 Personnel should be properly grounded, and should touch the frame of the instrument before touching any connector. Refer to the HP 83480A, HP 54750A User’s Guide for further information regarding ESD.
  • Page 37 In Case of Difficulty In Case of Difficulty What you’ll find in this chapter If the Mainframe Does Not Operate 3-4 If the Plug-in Does Not Operate 3-5...
  • Page 38: If The Mainframe Does Not Operate

    5 Is the rear-panel line switch set to on? 6 Will the mainframe power up without the plug-in module installed? If the mainframe still does not power up, refer to the optional HP 83480A, HP 54750A Service Guide or return the mainframe to a qualified service department.
  • Page 39: If The Plug-In Does Not Operate

    2 Perform the following procedures: • Make sure the instrument is ready to acquire data by pressing Run. • Verify the pulse output is connected to channel 1 on the HP 83483A, 54751A electrical plug-in module. • Verify the trigger output is connected to the trigger input.
  • Page 40 In Case of Difficulty If the Plug-in Does Not Operate • Make sure Channel Display is on by pressing: Channel, Display on off • Make sure the channel offset is adjusted so the waveform is not clipped off the display. •...
  • Page 41 Index Symbols equipment used for display, 2-4 expanding the signal, 2-9 +width key, 2-16 External Scale softkey, 1-7 amplitude, 2-8 finding input signals, 2-8 measurement, 2-15 Fine softkey, 1-9, 2-9 scale, 2-11 freerun softkey, 3-5 analog signal, 2-5 front panel, 1-4, 1-10 automatic measurement, 2-14, 2-16 Autoscale key, 2-8, 3-5 hardkey overview, 1-5...
  • Page 42 Index milli key, 2-10 mode softkey, 2-14 Time base key, 1-5 modifying the setup, 2-9 time base scale, 1-9 toggle softkeys, 1-6 trigger display, 2-8 offset, 2-17 level, 2-7 adjustment, 2-5 signal, 2-7 Offset softkey, 2-10 Trigger key, 1-5, 1-6, 3-5 optical/electrical plug-in module, 2-4 triggered softkey, 3-5 troubleshooting, 3-2–3-6...

This manual is also suitable for:

83480a

Table of Contents