Tektronix P7708 User Manual
  1. Manuals
  2. Brands
  3. Tektronix Manuals
  4. Laboratory Equipment
  5. P7708
  6. User manual

Tektronix P7708 User Manual

P7700 series trimode probes
Hide thumbs Also See for P7708:
Table of Contents

Advertisement

Quick Links

Download this manual
x
P7700 Series
TriMode™ Probes
ZZZ
User Manual
*P071342102*
071-3421-02

Advertisement

Table of Contents
loading

Related Manuals for Tektronix P7708

Summary of Contents for Tektronix P7708

  • Page 1 P7700 Series TriMode™ Probes User Manual *P071342102* 071-3421-02...
  • Page 3 P7700 Series TriMode™ Probes User Manual www.tek.com 071-3421-02...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
  • Page 5 Warranty Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

  • Page 7: Table Of Contents

    Table of Contents Table of Contents Important safety information....................... . General safety summary.
  • Page 8 Table of Contents Basic operation ..........................Probe setup screen .

  • Page 9: Important Safety Information

    Important safety information Important safety information This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition. General safety summary Use the product only as specified. Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.

  • Page 10: Terms In This Manual

    Important safety information Probes and test leads Remove all probes, test leads and accessories that are not in use. Inspect the probe and accessories. Before each use, inspect probe and accessories for damage (cuts, tears, or defects in the probe body, accessories, or cable jacket). Do not use if damaged. Use on specified replacement parts.

  • Page 11: Symbols And Terms On The Product

    Important safety information Symbols and terms on the product These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product.

  • Page 12: Compliance Information

    This symbol indicates that this product complies with the applicable European Union requirements according to Directives 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries. For information about recycling options, check the Tektronix Web site (www.tek.com/productrecycling). P7700 Series TriMode Probes User Manual...

  • Page 13: Preface

    Preface This manual describes the installation and operation of the P7700 Series TriMode Probes. Basic probe operations and concepts are presented in this manual. All documents listed below are accessible from the Tektronix Web site (www.tek.com/manuals). Probe models These P7700 Series TriMode Probe family includes these models:...
  • Page 14 Preface viii P7700 Series TriMode Probes User Manual...

  • Page 15: Key Features

    Key features Key features The P7700 Series TriMode Probes allow you to take differential, single-ended, and common mode measurements with one probe connection. Key features include: Low loading for low power circuits Thin solder-in tips that can fit into tight spaces on a device under test Flexible solder-in tips and main probe cable Lightweight probe cable and head...

  • Page 16: Operating Considerations

    Operating considerations Operating considerations Table 1: P7700 Series TriMode probes Characteristic Description Specification TekFlex solder-in P77BRWSR P77C292MM adapter tips Input Voltage Dynamic range 2.5 Vpp (single- 6.0 Vpp (single- 1.2 Vpp (single- ended) ended) ended) 5.0 Vpp (differential 12.0 Vpp (differential 2.0 Vpp (differential input) input)
  • Page 17 Operating considerations Characteristic Description Specification TekFlex solder-in P77BRWSR P77C292MM adapter tips Humidity Operating Probe Compensation Box, Cable, Tips, and SMA adapter: 20% to 80% Relative Humidity (%RH) at up to 45°C non-condensing Non-operating Probe Compensation Box, Cable, Tips, and P77292MM adapter: 10% to 90% (Relative Humidity), non-condensing Altitude Non-operating...

  • Page 18: Installation

    Installation Installation Before you connect the probe to your instrument, read the Overview below to understand the sequence of events necessary to properly install the probe and adapters. CAUTION. To avoid ESD damage to the probe, always use an antistatic wrist strap (provided with your probe), and work at a static-approved workstation when you handle the probe.

  • Page 19: Connect To The Host Instrument

    Installation Connect to the host instrument NOTE. Your TekConnect instrument may require a firmware upgrade to support full functionality of the P7700 Series probes. Before you connect the probe, check the version requirements. (See page 74, Host instrument firmware.) 1. Slide the probe into the TekConnect receptacle.
  • Page 20 Installation Probe and probe tip power-on After the connection to the oscilloscope is made: 1. The probe briefly turns on all LEDs during a self-test, and then the A – B Input Mode LED remains on. If a probe tip is attached, an LED on the tip also turns on when properly attached to the probe.

  • Page 21: Connect P7700 Accessories To The Tekflex Connector

    Installation Connect P7700 accessories to the TekFlex connector All of the P7700 accessories mate with the new TekFlex (zero insertion force) connector. This connector provides an easy connection with one handed operation for attaching to the P7700 series accessories. The following procedures show the steps for connecting probe tips to the TekFlex connector;...

  • Page 22: Probe Comp Box Controls And Indicators

    Installation Probe comp box controls and indicators Input mode buttons and LEDs The P7700 Series solder-in tips support TriMode operation. TriMode enables you to switch the probe between four different measurement types without changing the probe’s connection: NOTE. You can also change the Input Mode in the oscilloscope Probe Setup screen. Press the Input Mode button to select one of the four TriMode measurements.
  • Page 23 Installation Warning LED The Warning LED glows amber under the following conditions: Probe power-on self test failure Probe tip over-temperature detected The input voltage on either the A or B input exceeds the allowable limit The Warning LED clears when the condition causing the warning is removed.
  • Page 24 Installation TriMode probing The TriMode feature allows you to view two single-ended signals and the resultant differential waveform and common-mode voltage without moving the probe connection. Press the Input Mode button to cycle through the waveform views. This example shows a typical signal on the A and B inputs.

  • Page 25: Functional Check And Calibration

    Series probe with the optional coaxial input adapter can connect directly to the FAST EDGE signal. (See Table 3 on page 12.) Table 2: Required equipment, functional check with probe tip Item Description Performance Requirement Recommended Example Oscilloscope TekConnect Interface Tektronix MSO/DPO70000C/70000DX Probe tip Solder tip or Browser tip P77STFLXA Test board Probe deskew fixture P77DESKEW...
  • Page 26 USB 2.0, A male to Micro B male, 1 m 174-6919-xx (included with P77DESKEW) Coaxial cable SMA, 50Ω, male-to-male 174-1120-xx Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers Optional accessory Table 3: Required equipment, functional check with SMA adapter Item Description Performance Requirement Recommended Example...
  • Page 27 Functional check and calibration Test setup with the P77DESKEW Fixture 1. Connect the probe to any channel (1-4) of the oscilloscope (connection to CH4 is shown). Set the oscilloscope to display the connected channel. 2. Connect the USB cable assembly supplied with the P77DESKEW fixture between the USB connector on the fixture board and a USB connector on the host oscilloscope.
  • Page 28 Functional check and calibration An additional set of green LEDs will light up under the probe tip clamp when the solder-down probe tip is properly inserted into the clamp. Finally, connect the TekFlex connector at the end of the probe main cable to the probe tip inserted into the deskew fixture port. An LED on the probe tip will also light up when the tip is properly inserted into the TekFlex connector of the probe.
  • Page 29 Functional check and calibration Test setup with the P77C292MM adapter 1. Connect the probe to any channel (1-4) of the oscilloscope (connection to CH4 is shown). Set the oscilloscope to display the connected channel. Connect the probe to the P77C292MM adapter. 2.
  • Page 30 Functional check and calibration 3. When you see a stable square waveform, check the amplitude (use the horizontal cursors). The attenuated amplitude displayed for a DPO70000 oscilloscope FAST EDGE signal routed through the Deskew Fixture should be about 100 mVpp. 4.
  • Page 31 Functional check and calibration 5. Change the FAST EDGE cable connection from the Deskew Fixture A input to the B input. If using the P77CSMAMM adapter, disconnect the A SMA cable from the FAST EDGE output and connect the SMA B cable.

  • Page 32: Trimode Probe Dc Calibration

    P77C292MM Test fixture Probe DC calibration fixture 067-4889-xx Coaxial cable BNC, 50Ω, male-to-male 012-0208-xx Nine-digit part numbers (xxx-xxxx-xx) are Tektronix part numbers P77STCABL, P77BRWSR, and P77C292MM are optional accessories Standard accessory included with probe P7700 Series TriMode Probes User Manual...
  • Page 33 Functional check and calibration Check the instrument calibration status The Calibration Status of the instrument Signal Path Compensation test must be Pass for the probe calibration routine to run. 1. From the Utilities menu, select Instrument Calibration. 2. In the Calibration box, check that the Status field is Pass.
  • Page 34 Functional check and calibration Calibrate the probe 1. Connect a BNC cable from the DC Probe Cal output connector on the oscilloscope to the BNC connector on the TriMode DC Calibration board. 2. Connect the cable from the TekConnect adapter to the connector on the calibration board. 3.
  • Page 35 Functional check and calibration Attach a P7700 Series probe tip to the TekFlex connector of the probe. For a solder-in probe tip open the fixture’s tip clamp, insert the input end of the tip, then release the clamp. For a P77BRWSR browser tip, the browser’s pins should be pressed into the array of vias on the calibration fixture.
  • Page 36 Functional check and calibration Attach a P77C292MM Adapter to the TekFlex connector of the probe. Connect the A and B cables from the adapter to the A and B connectors on the calibration fixture. P7700 Series TriMode Probes User Manual...
  • Page 37 Functional check and calibration 7. In the oscilloscope menu bar, select Vertical and then select Probe Cal. The Probe Setup dialog box appears. The probe calibration routine runs, optimizing the probe to the oscilloscope for both probe attenuation settings. 8. Select the Compensate Probe button. The probe calibration routine runs, optimizing the probe to the oscilloscope for each input mode setting.

  • Page 38: Basic Operation

    Basic operation Basic operation This section includes information about the probe input limits, using the probe controls, and procedures for connecting the probe to your circuit. A simplified input model of the probe is shown below to illustrate the probe offset voltage controls. The probe has two symmetrical signal inputs, the A input and the B input, which you can display independently or in combination by selecting the appropriate probe input mode.
  • Page 39 Basic operation Offset voltage. The offset voltage adjusts the probe input dynamic range within the larger probe input operating range, as shown in the following figure. The probe input dynamic range is the region where an input signal is within the linear operating region of the probe.
  • Page 40 Basic operation Figure 2: Input dynamic range for solder-in tips and browser P7700 Series TriMode Probes User Manual...
  • Page 41 Basic operation Using the offset voltages The offset voltage nulls out the DC bias component of an input signal, allowing the (generally smaller) AC component of the signal to be displayed. The size of the probe input dynamic range depends on the probe tip that you are using, as shown in the diagrams, and can also depend on the input mode selected.

  • Page 42: Probe Setup Screen

    Basic operation Probe setup screen Use the Probe Setup screen to adjust the probe input settings for the measurement you are taking. To display the Probe Setup screen, select Probe Cal from the oscilloscope Vertical menu. The Probe Setup screen can be used to select the TriMode Input Mode setting and is also used to adjust the offset voltage controls for the probe tip A and B inputs.
  • Page 43 Basic operation Selecting the TriMode input mode The Input Mode button on the probe toggles the internal probe input selector switches among the four input mode selections. The input mode can also be selected from the drop-down menu in the Probe Setup screen. This TriMode feature allows full characterization of a differential signal from a single connection.
  • Page 44 Basic operation B-GND mode. The B-GND mode is used for making single-ended measurements with the probe B input. The probe ground input connects the probe tip and main cable shield. The B-GND Mode is designed for minimal coupling from any signal present on the A input within the B input isolation performance of the probe.
  • Page 45 Basic operation Selecting the offset voltage You can set both the A and B offset voltages to levels that are common for all input modes. Offset voltages may be automatically generated by the probe and can be set automatically using the Auto Offset button and two mode selection buttons in the Offset section of the Probe Setup screen.
  • Page 46 Basic operation Auto Offset voltage set buttons The probe A and B signal inputs are sensed, monitored, and averaged by probe internal circuitry and the sensed values are used by the automatic offset voltage control buttons. Auto in Common. Click this selection to select the common value Auto Offset mode.
  • Page 47 Basic operation The tracking function works best when measuring a differential signal. When making single-ended measurements in Differential Input mode with a browser tip, set the offset voltage control manually so that the tracking mode will be shut off. If single-ended measurements are made with tracking mode active, the Offset A voltage will likely not be optimum and will be affected by the duty cycle of the A input signal.
  • Page 48 Basic operation A graph of the operating limits of the termination voltage with respect to the input voltage is shown for the P77C292MM adapter. The hi and lo lines represent the hysteresis sections and the limits are the points where the Overload light turns on.
  • Page 49 Basic operation Probe tip information NOTE. Probe tip ID is fully automatic. Manual selection is not required. When the probe is first connected to the oscilloscope channel, the oscilloscope queries the probe for status information, including the probe type, serial number, and the model number of the tip that is connected to the probe. The first time a probe or probe tip is connected to a host oscilloscope, the probe and probe tip serial numbers are logged and the stored S-parameters are downloaded.

  • Page 50: Improving Measurement Accuracy

    Basic operation Improving measurement accuracy This section covers some of the features and characteristics of the probe that can affect the accuracy of your measurements, and some steps that you can take to improve the performance of the probe. P7700 Series probe architecture The P7700 Series probe measurement setup, as shown in the simplified drawing below, requires a host TekConnect oscilloscope, a P7700 Series probe, and a P7700 Series active probe tip.
  • Page 51 Basic operation The probe tip dual input buffer also provides high DC resistance input attenuators, which are carefully designed to minimize high frequency loading on the input signals. The attenuation factor of the buffer input attenuators depends on the probe tip type. Using a different attenuation factor allows you to trade-off dynamic range for noise performance.
  • Page 52 fixture built with a probe tip having a signal wire length of 10 mils (.25 mm) and a ground wire length of 66 mils (1.7 mm). Please see the Specifications Technical Reference manual available for download at the Tektronix web site for more detailed specifications on wire length as it affects tip performance.
  • Page 53 Basic operation Figure 5: Simplified drawing of input attenuation factor of the P7700 Series buffers The offset voltage affects the probe tip buffer’s measured signal through a resistive summer configuration that forms the buffer’s input attenuator network. The high value resistors used in the buffer’s input attenuator result in an interaction between the input signal and the offset voltage DC level.
  • Page 54 Basic operation Calibrated offset voltage performance requires that both the input signal and the offset voltage generator in the probe have a source resistance that is very small compared to the 25 kΩ attenuator resistors. The source resistance of the offset voltage generator in the probe is less than an ohm.
  • Page 55 Basic operation When making differential signal measurements, the P77BRWSR Offset Voltage control is normally set to the Common-mode (CM) Tracking mode. With CM tracking mode active, the A and B input signals are monitored and the Offset A and Offset B settings are both adjusted to match the DC common-mode voltage of the A and B input signals [(A + B)/2].
  • Page 56 Basic operation Figure 6: Proper configuration of the Differential Input mode signal and offset voltage P7700 Series TriMode Probes User Manual...
  • Page 57 Basic operation The configuration process described in this section will maximize the available dynamic range of the P77BRWSR tip when making single-ended measurements. Temperature compensation The P7700 Series probes employ temperature compensation to optimize measurement accuracy. Whenever a probe setting is changed, such as Input Mode, Offset Voltage, or vertical scale factor, a temperature compensation update occurs.
  • Page 58 Basic operation Solder tip measurement configuration In many of the high-frequency signaling standards that the P7700 Series probes are designed for, a 50 Ω termination at the transmitter is in parallel with another 50 Ω termination at the end of the transmission line path, effectively making a 25 Ω signal source impedance.

  • Page 59: Connecting To A Circuit Board

    The browser can be held in place with a hand or can be used with the hands free Tri-Pod accessory or a probe positioner such as the Tektronix PPM203B. (See page 40, Making single-ended measurements using the P77BRWSR differential probe tip.)
  • Page 60 Basic operation The browser is a differential only probe accessory, but can be used to measure ground referenced, single-ended circuits as well. When measuring a ground referenced signal, connect the A side (positive) input to the signal to be measured and the B side (negative) to the ground connection.
  • Page 61 Basic operation Flex circuit based solder tips The flex circuit based solder tips are connected to the circuit using thin (38 AWG) wire connected to the vias on the tip. The steps to follow when soldering the tip to the circuit are shown in the soldering procedure section below.
  • Page 62 Basic operation The flex circuit based solder tips are made with flex circuit material and can be bent and shaped to fit around or into spaces where it is difficult to reach a test point. The minimum bend radius for the flex tips is 1.0 in (25.4 mm).
  • Page 63 Basic operation P77STCABL Solder-in Tip The P77STCABL solder-in tips have similar input via connections for thin (38 AWG) wire. The steps to follow when soldering this tip to the circuit are identical to the flex circuit based solder tips and are shown in the soldering procedure section below.
  • Page 64 Basic operation P77C292MM, 2.92 mm Adapter Use this adapter to connect a P7700 series probe to a DUT with 50 Ω test point connectors. The adapter supports testing of serial standards such as HDMI, MIPI M-PHY, and Display Port; cables and retainer are included. After connecting the adapter to the flex cable, use the retainer to provide a secure connection to the flex cable to minimize movement or to...
  • Page 65 Basic operation Tip soldering CAUTION. This procedure uses equipment at high temperature. Avoid touching hot surfaces. Recommended equipment. Lead-free solder 4 mil diameter (38AWG) wire (a spool of 38 AWG wire is included as a standard accessory with each P7700 Series probe) MetCal Soldering Station + UFTC-7CN04 (Conical UltraFine Soldering Cartridge, max tip temp 775 °F (412 °C)) or equivalent Solder-Wick Rosin SD Size #1 (80-1-10) or equivalent Tweezers and sharp wire cutters...
  • Page 66 Basic operation Tip soldering procedure. Keep the wires short as possible for best signal fidelity. Soldering wires first to the test points and then attaching the P7700 Solder tips is the best way to keep wire lengths short. 1. Solder wires to the test points. Cut wires with different lengths.
  • Page 67 Basic operation 2. Thread tip onto wires. The two middle vias are the A(+) and B(-) inputs of the tip. You may find it useful to use the double-sided foam tape that was shipped with your probe to hold the probe tip in place. NOTE.
  • Page 68 Basic operation 3. With the tip in position, quickly solder the wires to the vias. If the soldering iron is left too long on the tip, it may cause the 0201 input resistors to reflow and move. P7700 Series TriMode Probes User Manual...
  • Page 69 Basic operation 4. Trim wires flush with the board on the probe tip. P7700 Series TriMode Probes User Manual...
  • Page 70 Basic operation 5. Attach the ground wire for TriMode input to the P7700 probe. First add solder to the test point and the nearest ground via on the solder tip. P7700 Series TriMode Probes User Manual...
  • Page 71 Basic operation 6. Second, solder a short piece of wire between the ground via on the tip and the ground test point. This configuration optimizes the performance of the probe for differential measurements. Longer wires on the ground path will have an impact on Single-Ended Mode and Common Mode performance.
  • Page 72 Basic operation Tip unsoldering procedure. 1. Use small solder-wick to remove the solder and wire from the tip ground via. Size #1 Solder-Wick is recommended due to the small size of the tip and vias. Do not place the solder wick over the 0201 input resistors and these parts might accidentally be unsoldered from the board.
  • Page 73 Basic operation 2. Use the solder-wick to remove excess solder from the input vias. Again, be careful not to place the solder-wick too close to the input resistors. P7700 Series TriMode Probes User Manual...
  • Page 74 Basic operation 3. If the solder cannot be fully removed from the input via while attached to the test points, it is possible rock the tip side to side while reflowing the solder in the vias. Since the wires are cut flush to the board, the tip can be slowly removed from the wires using this method.
  • Page 75 Basic operation Precautions when connecting to the circuit To achieve the best performance and service life of the probe and tips, observe the best practices below when you make connections: Wear the antistatic wrist strap that is supplied with the probe and work at an antistatic-approved workstation. The flex circuit based solder tips are built with flexible circuit board material and are susceptible to mechanical overstress and harsh handling particularly at the ends of the probe tip where the components are mounted.
  • Page 76 Basic operation Care of P77STFLXA tips CAUTION. The top of the tips contain active components and can cause shorting if the tips are mounted top-down and the discrete components on the back end of the tips come into contact with an active circuit. Ensure that metal components do not touch anything else.
  • Page 77 Basic operation Tip dimensions The dimensions of the solder tip connections are provided here for reference. You can also design the tip footprint into your circuit board layout for easier test connections. P7700 Series TriMode Probes User Manual...

  • Page 78: Probe Handling Best Practices

    Probe handling best practices Probe handling best practices Tektronix TriMode probes are quality measurement tools and should be treated with care to avoid damage or performance degradation due to mishandling. Take the following precautions when handling the probe cables: Never over-bend the probe main or tip cables, which can put a permanent kink into the cable. When storing the probe do not coil it too tightly.
  • Page 79 Probe handling best practices Do not excessively pull or twist the probe cables when positioning the probe for measurements. Never crush the cable, as will occur when you run over the probe with a chair wheel or drop something heavy on the cable. P7700 Series TriMode Probes User Manual...

  • Page 80: S-Parameter Information

    S-parameter information The S-parameter files for the Tektronix P7720 probe are unique to each serial numbered probe and accessory tip. The files are stored on the oscilloscope in a file structure that corresponds to the probe, tip, and serial numbers. The root path for the...

  • Page 81: Accessories And Options

    Accessories and options Accessories and options You can reorder the following replacement parts and accessories. Note that in some cases, the reorder quantities may differ from those that ship with the probe. Standard accessories The following accessories are shipped with the P7700 Series probes. If no quantity is listed, only one of that item is shipped. Reorder part number Standard accessory and quantity...
  • Page 82 Accessories and options Reorder part number Standard accessory and quantity Description 006-3415-xx Antistatic wrist strap. When you use the probe, always work at an antistatic work station and wear the antistatic wrist strap. – Calibration certificate. A certificate of traceable calibration is provided with every probe.
  • Page 83 User manual. The manual provides instructions for using the P7700 Series TriMode Probes. Other documents, such as the technical reference and other probe literature are located on the Tektronix web site (www.tek.com/manuals). 067-4889-xx DC probe calibration fixture. Use this fixture to perform a DC compensation with the host instrument.

  • Page 84: Optional Accessories

    Accessories and options Optional accessories Optional accessory Part and description P77STCABL, Solder-in active tip This tip provides a soldered, multi-point connection that supports full TriMode measurement capabilities at full probe bandwidth. Flex circuit based solder tips These tips use flex circuit material and provide soldered, multi-point connections.
  • Page 85 Accessories and options Optional accessory Part and description P77BRWSR, Browser accessory includes these items: Browser wand. Extends the length of the browser for a more comfortable grip. (Part number 020-3160-xx.) Browser hands-free tripod. Holds the browser on a test point without the need to use your hands. (Part number 020-3161-xx.) Browser replacement tips.
  • Page 86 Accessories and options Optional accessory Part and description 407-6019-xx, Probe adapter Use this accessory to attach the browser to the PPM203B. probe arm/positioner P77C292MM, 2.92 mm adapter Use this adapter to connect a P7700 series probe to a DUT with 50 Ω test point connectors. P7700 Series TriMode Probes User Manual...
  • Page 87 Accessories and options Optional accessory Part and description 020-3179-xx, Linkage adapter kit Use the adapters for stacking two or more P77C292MM 2.92 mm adapters. Use two gray adapters to stack two P77C292MM adapters; use two black adapters to stack three or four P77C292MM adapters.

  • Page 88: Maintenance

    Maintenance Maintenance This section contains maintenance and support information for your probe. Host instrument firmware Some oscilloscopes might require a firmware upgrade to support full functionality of the P7700 Series probes. Instruments with lower versions of firmware might not display all probe controls and indicators on screen, and in some cases require you to power-cycle the instrument to restore normal instrument operation.

  • Page 89: Browser Tip Replacement

    Maintenance Browser tip replacement NOTE. Note: It may be helpful to have a magnifying device or glasses when performing this operation. Although the P77BRWSR’s tips are design to withstand up to 4 lbs (1.8 kg.), they can break during use. If one of the tips on your browser breaks, it is easy to replace the tip with a new one and be ready to make measurements again in a few seconds.

  • Page 90: Error Conditions

    If the symptoms continue, connect the probe to another oscilloscope channel or oscilloscope. If the symptoms remain, return the probe to Tektronix for repair. There is an amber-colored WARNING indicator LED located on the top plate of the probe comp box. This LED turns on when any of...
  • Page 91 Maintenance Signal display If the probe is connected to an active signal source and you do not see the signal displayed on the oscilloscope: Perform an Autoset operation on the host oscilloscope. This will automatically adjust the oscilloscope settings to try to display a useable waveform.
  • Page 92 Maintenance Measurement errors If you suspect that your measurement may not be accurate, and you are using a solder in connection, check that the solder tip signal and ground connections are correct and intact. Checking the signal measurement in some of the other TriMode Input modes may provide some clue if there is a measurement problem.

  • Page 93: Handling The Probe

    Maintenance Handling the probe This probe is a precision high-frequency device; exercise care when you use and store the probe. The probe and cable are susceptible to damage caused by careless use. Always handle the probe at the comp box and probe body to avoid undue physical strain to the probe cable, such as kinking, excessive bending, or pulling.

  • Page 94: Cleaning The Probe

    Maintenance Cleaning the probe CAUTION. To prevent damage to the probe, do not expose it to sprays, liquids, or solvents. Avoid getting moisture inside the probe during exterior cleaning. Do not use chemical cleaning agents; they may damage the probe. Avoid using chemicals that contain benzine, benzene, toluene, xylene, acetone, or similar solvents.

  • Page 95: Returning The Probe For Servicing

    Maintenance Returning the probe for servicing If your probe requires servicing, you must return it to Tektronix. If the original packaging is unfit for use or not available, use the following packaging guidelines: Preparation for Shipment 1. Use a corrugated cardboard shipping...
  • Page 96 Maintenance P7700 Series TriMode Probes User Manual...
  • Page 97 Index Index controls and indicators with P77C292MM adapter, 15 TriMode, 10 accessories optional, 70 standard, 67 handling the probe, 64, 79 Auto Offset, 32 dimensions host instrument firmware, 74 solder tips, 63 documentation, vii, 69 DSP correction, 43 browser tip dynamic range, 41 improving measurement accuracy, 36 dynamic range Input Mode selection, 29...
  • Page 98 Index improving, 36 probe connection precautions, 61 caring for, 62 measurement configuration Probe Controls screen, 35 solder-in tips solder tip, 44 probe models, vii P77STCABL, 49 measurement errors, 78 Probe Setup screen, 28 standard accessories, 67 models, vii input mode selection, 29 offset selection, 31 offset voltage set buttons, 32 TekFlex...

This manual is also suitable for:

P7716P7720P7713

Table of Contents