Tektronix Trimode TDP7700 Series User Manual
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Tektronix Trimode TDP7700 Series User Manual

Tektronix Trimode TDP7700 Series User Manual

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TDP7700 Series
™
TriMode
Probes
User Manual
*P071355900*
071-3559-00

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Summary of Contents for Tektronix Trimode TDP7700 Series

  • Page 1 TDP7700 Series ™ TriMode Probes User Manual *P071355900* 071-3559-00...
  • Page 3 TDP7700 Series ™ TriMode Probes User Manual www.tek.com 071-3559-00...
  • Page 4 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. Specifications and price change privileges reserved.
  • 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 6 THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.

  • Page 7: Table Of Contents

    Table of Contents Important safety information ..........................General safety summary ..........................Terms in the manual ............................Terms on the product ............................. Symbols on the product ..........................Compliance Information ............................Environmental compliance ..........................Key features Operating considerations TDP7700 Series TriMode Probes User Manual...
  • Page 8 Table of Contents Installation Installation overview ............................Connect to the host instrument ........................Connect accessories to the TekFlex connector ................... TriMode probing ............................Probe comp box controls and indicators ...................... Status LED ............................. Input mode buttons and LEDs ........................ Functional check Functional check ............................
  • Page 9 Table of Contents Using the offset voltages ..........................Probe setup panel ............................Selecting the offset voltage ........................Offset tracking set up ..........................Termination voltage ..........................Probe tip information ..........................Improving measurement accuracy ....................... Probe architecture ..........................Solder-in tip connection wire length .......................
  • Page 10 Table of Contents Recommended equipment ........................Precautions when connecting to the circuit .................... Care of TekFlex solder-in tips ........................ Probe handling best practices Best practices ............................... Accessories and options Standard accessories ........................... Optional accessories ............................ Maintenance Browser tip replacement ..........................Error conditions ............................
  • Page 11 Table of Contents Signal display ............................Measurement errors ..........................Handling the probe ............................Cleaning the probe ............................Returning the probe for servicing ......................... TDP7700 Series TriMode Probes User Manual...
  • Page 12 Table of Contents TDP7700 Series TriMode Probes User Manual...

  • Page 13: 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 14 Important safety information Do not operate in wet/damp conditions. Be aware that condensation may occur if a unit is moved from a cold to a warm environment. Do not operate in an explosive atmosphere. Keep product surfaces clean and dry. Remove the input signals before you clean the product. Probes and test leads Remove all probes, test leads and accessories that are not in use.

  • Page 15: Terms In The Manual

    Important safety information Terms in the manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. TDP7700 Series TriMode Probes User Manual...

  • Page 16: Terms On The Product

    Important safety information 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. ■...

  • Page 17: Compliance Information

    Compliance Information This section lists the EMC (electromagnetic compliance), safety, and environmental standards with which the instrument complies. This product is intended for use by professionals and trained personnel only; it is not designed for use in households or by children. Environmental compliance This section provides information about the environmental impact of the product.
  • Page 18 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). TDP7700 Series TriMode Probes User Manual...

  • Page 19: Key Features

    Key features The TDP7700 Series TriMode Probes allow you to take differential, single-ended, and common mode measurements with one probe connection. Key features include: TDP7700 Series TriMode Probes User Manual...
  • Page 20 Key features ■ Low loading for low power standards like MIPI D-PHY ■ Thin flexible solder-in tips that can fit into tight spaces on a device under test ■ Lightweight and Flexible probe cable and head ™ ■ TekFlex connector technology that makes the probe easy to connect to accessories ■...
  • Page 21 Operating considerations Table 1: TDP7700 Series TriMode probes Characteristic Description Specification TekFlex solder-in tips P77BRWSR P77C292MM adapter Input Voltage Dynamic range 2.5 Vpp (single-ended) 6.0 Vpp (single-ended) 1.2 Vpp (single-ended) 5.0 Vpp (differential input) 12.0 Vpp (differential 2.0 Vpp (differential input) input) Operating voltage window ±5.25 V ±10.0 V...
  • Page 22 Operating considerations Characteristic Description Specification TekFlex solder-in tips P77BRWSR P77C292MM adapter Humidity Operating Probe compensation box: 5% to 90% Relative Humidity (%RH) at up to 40 °C non-condensing, 5% to 55% RH above 40°C up to 50°C non-condensing Probe cable, solder tips, and P77C292MM adapter: 20% to 80% Relative Humidity (%RH) at up to 50 °C non-condensing Non-operating Probe compensation box: 5% to 90% Relative Humidity (%RH), at up to 40 °C...

  • Page 23: Installation Overview

    Installation Installation overview 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. Connect the probe to the host instrument. If it is the first time the probe has been connected to the oscilloscope, the oscilloscope will download the S-parameters stored in the probe and cycle through the LEDs.
  • Page 24 Installation Tap the Probe Setup panel to open the Probe Setup panel to confirm probe settings. Use the Probe Setup panel to set the probe parameters as described in the Basic operation section. TDP7700 Series TriMode Probes User Manual...

  • Page 25: Connect To The Host Instrument

    Installation Connect to the host instrument Slide the probe into the FlexChannel receptacle. The probe clicks into place when fully engaged. Move the locking lever to the locked position. TDP7700 Series TriMode Probes User Manual...
  • Page 26 Installation Disconnect To disconnect the probe, move and hold the locking lever at the unlocked position and pull out the probe. TDP7700 Series TriMode Probes User Manual...
  • Page 27 Installation Probe and probe tip power-on After the connection to the oscilloscope is made: The probe cycles through all mode LEDs during a self-test and while S-Parameters are transferred to the instrument, and then the A – B Input Mode LED remains on.
  • Page 28 Installation After the data transfer is done, the probe is ready for a functional check. See Functional check on page 19. If the probe’s status LED is red, the power-on self-test likely failed. See Error conditions on page 77. TDP7700 Series TriMode Probes User Manual...

  • Page 29: Connect Accessories To The Tekflex Connector

    Installation Connect accessories to the TekFlex connector All of the TDP7700 accessories mate with the new TekFlex (zero insertion force) connector. This connector provides an easy connection for attaching to the TDP7700 series accessories. The following procedures show the steps for connecting probe tips to the TekFlex connector;...
  • Page 30 Installation Connect the tip to the probe TekFlex connector as follows: Pinch the TekFlex connector to open the jaws. Orient the tip with the probe head (notch to the left) and slide the tip connector into the TekFlex connector. A green LED will light up when the tip is inserted .

  • Page 31: Trimode Probing

    Installation TriMode probing 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 32 Installation TDP7700 Series TriMode Probes User Manual...

  • Page 33: Probe Comp Box Controls And Indicators

    Installation Probe comp box controls and indicators Status LED The Status LED glows red under the following conditions: ■ Probe power-on self test failure ■ Probe over-temperature detected ■ The input voltage on either the A or B input exceeds the allowable limit or more than 50 mA is drawn by the inputs on the P77C292MM The Status LED is green when the condition...

  • Page 34: Input Mode Buttons And Leds

    Installation CAUTION. Do not exceed the input voltage limits of the probe and probe tips. The probe or oscilloscope circuits may be damaged if the limits are exceeded. Make sure that you understand and work within the limits of the probe and probe tips. Input mode buttons and LEDs The TDP7700 Series solder-in tips support TriMode operation.
  • Page 35 Installation Press the Input Mode button to select one of the four TriMode measurements. The modes cycle in the following sequence: ■ A – B (for differential signal measurement) ■ A – GND (for A input single-ended measurement) ■ B – GND (for B input single-ended measurement) ■...
  • Page 36 Installation TDP7700 Series TriMode Probes User Manual...

  • Page 37: Functional Check

    Functional check After you connect the probe to the oscilloscope, you can perform a functional check using either the optional P77DESKEW deskew fixture designed for the probe or the optional P77C292MM Adapter. 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 38 Functional check Table 2: Required equipment, functional check with probe tip Item Description Performance Requirement Recommended Example Oscilloscope FlexChannel Interface Tektronix MSO6 Series Probe tip Solder tip or Browser tip P77STFLXA Test board Probe deskew fixture P77DESKEW Signal generator 100 kHz square wave, 1 V into 50 Ω...
  • Page 39 Functional check Test setup with the P77DESKEW deskew fixture TDP7700 Series TriMode Probes User Manual...
  • Page 40 Functional check Connect an SMA cable from a signal source, such as the AFG output connector on the oscilloscope to the A input of the fixture. Connect the probe to the desired channel of the oscilloscope. Set the oscilloscope to display the connected channel. Connect the included P77STFLXA TekFlex solder in tip to the TDP7700 probe using the pinch to open TekFlex connector at the end of the main cable.
  • Page 41 Functional check Test setup with the P77C292MM adapter Connect the probe to the desired channel of the oscilloscope. Connect the probe to the P77C292MM adapter. Set the oscilloscope to display the connected channel. Connect the A cable from the P77C292MM adapter to the AFG Out connector.
  • Page 42 Functional check Set the probe Input Mode to A-B. Adjust the oscilloscope to display a stable waveform (or press the Autoset button). The test signal is a 100 KHz square wave. The amplitude of the signal is attenuated by 4X, compared to a single path termination, due to the power splitter built into the deskew fixture.
  • Page 43 Functional check Cycle the Input Mode button through the remaining selections and compare the displayed waveforms to the waveform measured in the setup steps. ■ ■ A-GND (same amplitude and polarity as previously measured) ■ B-GND (the B input is grounded; no signal is measured) ■...
  • Page 44 Functional check Change the SMA cable connection from the Deskew Fixture A input to the B input. Repeat the displayed waveform checks. The measurements should be different as follows: ■ A-B (the polarity of the signal will be inverted due to the B signal inversion, although the p-p amplitude should be the same) ■...
  • Page 45 Functional check ■ B-GND (same amplitude but non-inverted polarity compared to the A-B mode) ■ (A+B)/2- GND (half-amplitude, but the same polarity as measured in the B-GND mode) TDP7700 Series TriMode Probes User Manual...
  • Page 46 Functional check TDP7700 Series TriMode Probes User Manual...

  • Page 47: 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 48: Offset Voltage

    Basic operation Offset voltage The offset voltage adjusts the probe input dynamic range within the larger probe input operating range. The probe input dynamic range is the region where an input signal is within the linear operating region of the probe. The probe A and B offset voltages are set and stored as common settings for all four input modes.

  • Page 49: Probe Setup Panel

    Basic operation Probe setup panel Use the Probe Setup panel to adjust the probe input settings for the measurement you are taking. To display the Probe Setup panel, double-tap the channel badge and then tap Probe Setup. The Probe Setup panel 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 50 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 mode can also be selected from the Mode list in the Probe Setup panel. This TriMode feature allows full characterization of a differential signal from a single connection.

  • Page 51: Selecting The Offset Voltage

    Basic operation A-GND mode The A-GND mode is used for making single-ended measurements with the probe A input. The probe ground input connects the probe tip and main cable shield. The A-GND Mode is designed for minimal coupling from any signal present on the B input within the A input isolation performance of the probe.

  • Page 52: Offset Tracking Set Up

    Basic operation There are manual offset voltage value entry fields which also display the current offset voltage settings. An offset voltage entry field is activated for adjustment by taping the setting window. A single tap activates both the setting window and the general purpose knobs on the oscilloscope front panel.
  • Page 53 Basic operation Common Mode Offset Tracking. When this mode is selected Common Mode Offset is set to tracking. Common Mode Tracking automatically sets the common mode offset to the average of the inputs (A+B)/2. Differential Mode Offset Tracking. When this mode is selected Differential Mode Offset is set to tracking.

  • Page 54: Termination Voltage

    Basic operation Termination voltage For the P77C292MM adapter, the termination voltage adjusts the effective probe DC loading of the 50 Ω input termination. Use the voltage to minimize the DC loading of the probe input signals. By setting the voltage equal to the DC bias voltage of the input signal, the probe DC loading is nulled out, as if a DC block was inserted.
  • Page 55 Basic operation The probe A and B termination voltages are common for each of the four input modes. When using the P77C292MM adapter, the voltage can be adjusted over a limited operating range before reaching an overload condition.If VTerm Tracking is checked, the termination voltages are set automatically.

  • Page 56: Probe Tip Information

    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 57 Basic operation Figure 3: Simplified probe architecture diagram 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 58: Solder-In Tip Connection Wire Length

    10 mils (.25 mm) and a ground wire length of 66 mils (1.7 mm). Please see the Probing tips for high performance design and measurement application note available for download at the Tektronix website for more detailed specifications on wire length as it affects tip performance. (See HTTPS://WWW.TEK.COM/ DOCUMENT/APPLICATION-NOTE/PROBING-TIPS-HIGH-PERFORMANCE-DESIGN-AND-MEASUREMENT.)

  • Page 59: Using Offset Voltage To Extend Tdp7700 Series Solder-In Tip Input Voltage Range

    Basic operation Using offset voltage to extend TDP7700 series solder-in tip input voltage range The single-ended linear dynamic range of the TekFlex solder-in tip inputs is specified to be 2.5 V , which is a range from -1.25 V to +1.25 V with zero volt offset. The dynamic range of TDP7700 Series buffers is limited by the input attenuation factor, which is 2X for the solder-in probe tips as shown in the simplified drawing.

  • Page 60: Temperature Compensation

    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 61: Solder Tip Measurement Configuration

    Basic operation Solder tip measurement configuration In many of the high-frequency signaling standards that the TDP7700 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 62: 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 Making single ended measurements using the P77BRWSR on page 41.
  • Page 63 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 64 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 65 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 0.25 in (6.35 mm).
  • Page 66 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 67 Basic operation P77C292MM, 2.92 mm Adapter Use this adapter to connect a TDP7700 series probe to a DUT with 50 Ω test point connectors. Also use the adapter to connect to SMA connections. 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 attach the adapter to the...

  • Page 68: Tip Soldering

    Basic operation Tip soldering CAUTION. This procedure uses equipment at high temperature. Avoid touching hot surfaces. Recommended equipment ■ Lead-free solder ■ 4 mil diameter (38 AWG) wire ■ MetCal Soldering Station + UFTC-7CN04 (Conical UltraFine Soldering Cartridge, max tip temp 775 °F (412 °C)) or equivalent ■...
  • Page 69 Basic operation Solder wires to the test points. Cut wires with different lengths. This will make it easier to thread the wires onto the solder tips. TDP7700 Series TriMode Probes User Manual...
  • Page 70 Basic operation 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 71 Basic operation 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. TDP7700 Series TriMode Probes User Manual...
  • Page 72 Basic operation Trim wires flush with the board on the probe tip. TDP7700 Series TriMode Probes User Manual...
  • Page 73 Basic operation Attach the ground wire for TriMode input to the probe tip. First add solder to the test point and the nearest ground via on the solder tip. TDP7700 Series TriMode Probes User Manual...
  • Page 74 Basic operation 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 75 Basic operation Tip unsoldering procedure. 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 may accidentally be unsoldered from the board.
  • Page 76 Basic operation 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. TDP7700 Series TriMode Probes User Manual...
  • Page 77 Basic operation 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 78: Precautions When Connecting To The Circuit

    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. ■...

  • Page 79: Care Of Tekflex Solder-In Tips

    Basic operation Care of TekFlex solder-in 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 80 Basic operation TDP7700 Series TriMode Probes User Manual...

  • Page 81: Probe Handling Best Practices

    Probe handling best practices 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 82 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. TDP7700 Series TriMode Probes User Manual...
  • Page 83 Probe handling best practices TDP7700 Series TriMode Probes User Manual...
  • Page 84 Probe handling best practices TDP7700 Series TriMode Probes User Manual...

  • Page 85: 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 TDP7700 Series probes. If no quantity is listed, only one of that item is shipped. Reorder part number and quantity Description 024-0021-xx...
  • Page 86 User manual. The manual provides instructions for using the 071-3559-xx TDP7700 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). TDP7700 Series TriMode Probes User Manual...

  • Page 87: 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. P77STFLXA Flex circuit based solder tips These tips use flex circuit material and provide soldered, multi-point connections.
  • Page 88 Accessories and options Optional accessory Part and description P77DESKEW, Deskew fixture Use this fixture to compensate a probe, deskew up to 2 probes at once, or to perform a probe functional check. TDP7700 Series TriMode Probes User Manual...
  • Page 89 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.
  • Page 90 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 TDP7700 Series TriMode Probes User Manual...
  • Page 91 Accessories and options Optional accessory Part and description P77C292MM, 2.92 mm adapter Use this adapter to connect a TDP7700 series probe to a DUT with 50 Ω test point connectors. TDP7700 Series TriMode Probes User Manual...
  • Page 92 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. Insert the linkage adapters into the P77C292MM adapters as shown (gray linkage adapters shown).

  • Page 93: Maintenance

    Maintenance This section contains maintenance and support information for your probe. Browser tip replacement NOTE. Note: It may be helpful to have a magnifying device or glasses when performing this operation. The tips of the P77BRWSR 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 94 Maintenance Once the old tip has been removed, retrieve a new, replacement tip from its storage vial in the accessory kit. Grip the replacement tip with the tweezers, gently push the tip into the socket on the browser’s front end. TDP7700 Series TriMode Probes User Manual...

  • Page 95: Error Conditions

    If the LED is red, disconnect and reconnect the probe to restart the power-on diagnostic sequence. If the symptoms continue, connect the probe to another oscilloscope channel or oscilloscope. If the symptoms remain, return the probe to Tektronix for repair.

  • Page 96: Signal Display

    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 ■...

  • Page 97: Handling The Probe

    Maintenance ■ If the signal being measured is a differential signal, temporarily swtich the TriMode input on the probe to A only and B only and verify that each component of the differential signal looks correct. Switch the probe’s input to the common mode setting and see if there is a large and unexpected common mode signal present on the probe input.

  • Page 98: Cleaning The Probe

    Maintenance ■ Kink or fold the probe main cable tighter than a 2.5 inch radius; minimum bend radius for the solder tips is 0.25 inch (6.35 mm) ■ Solder the tips with excessive heat or duration ■ Injure yourself with the sharp tips Best practices on page 63.

  • Page 99: 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: TDP7700 Series TriMode Probes User Manual...
  • Page 100 Place the probe into the box and stabilize it with light packing material. Seal the carton with shipping tape. Refer to Contacting Tektronix at the beginning of this manual for the shipping address. TDP7700 Series TriMode Probes User Manual...
  • Page 101 Index documentation, 68 DSP correction, 42 accessories standard, 67 error conditions compensation LED indicators, 77 temperature, 42 signal display, 78 connecting tips to the probe TekFlex connector, 12 connecting to a circuit board, 44 connecting to circuit with flex circuit description, 46 coaxial adapters, 44 functional check controls and indicators...
  • Page 102 Index measurement configuration solder tip, 43 handling the probe, 63, 79 offset voltage, 30 improving measurement accuracy, 38 offset voltage buttons, 34 Input Mode selection, 32 input network, 41 input voltage range extend using offset voltage, 41 P77C292MM adapter installation termination voltage, 36 connecting accessories, 12 P77STCABL, 48...
  • Page 103 Index Probe Setup screen input mode selection, 32 offset voltage set buttons, 34 TekFlex connecting accessories, 12 dimensions, 61 temperature compensation, 42 replacing tips, 75 termination voltage, 36 returning the probe, 81 tip replaement, 75 tip soldering, 50 tri-pod accessory, 44 TriMode signal display errors, 78 probing, 13...
  • Page 104 Index TDP7700 Series TriMode Probes User Manual...

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