Tektronix P6434 Instructions Manual

Mass termination probe
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Summary of Contents for Tektronix P6434

  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Instructions P6434 Mass Termination Probe 070-9793-02 There are no current European directives that apply to this product. This product provides cable and test lead connections to a test object of electronic measuring and test equipment. Warning The servicing instructions are for use by qualified personnel only.
  • Page 3 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
  • Page 4 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
  • Page 6: Table Of Contents

    ......Designing an Interface Between a P6434 Probe and a SUT Mictor Connectors and Latch Housings .
  • Page 7 Figure 12: Equivalent circuit for the P6434 probe ....Figure 13: Equivalent circuit for the P6434 probe with a Low-Profile Extender ........
  • Page 8: General Safety Summary

    Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. P6434 Probe Instructions...
  • Page 9 WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated P6434 Probe Instructions...
  • Page 10: Preface

    Preface These instructions cover the following topics: Operating basics Designing an interface between the P6434 probe and a system under test Service information Replaceable parts list Information in these instructions assumes your system under test (SUT) is based on a microprocessor. If your SUT is not based on a microprocessor, you should substitute the type of device on which your system is based for “microprocessor”...
  • Page 11 Preface P6434 Probe Instructions...
  • Page 12: Operating Basics

    Connecting probes to and disconnecting probes from a SUT Product Description The P6434 probe can acquire data from 32 input/output signals and two clock, one clock and one qualifier, or two qualifier signals. The probe has connectors on each end. One end is called the probe tip and connects to your SUT.
  • Page 13: Labels

    Operating Basics Labels The P6434 probe is shipped with a sheet of labels. The labels are color coded to match the probe connectors on the logic analyzer and are different shapes for the probe tip and module ends of the probe.
  • Page 14: Connecting The P6434 Probe To The Sut

    These procedures are the same for the straddle-mounted connector. Direct Connection To connect the P6434 probe to a Mictor connector in your SUT (or on a TMS probe adapter), follow these steps: 1. Line up the pin 1 indicator on the probe tip with pin 1 on the connector in your SUT.
  • Page 15: Figure 3: Connecting To A Surface- Or Straddle-Mounted Connector

    Push down to latch after probe is connected Figure 3: Connecting to a surface- or straddle-mounted connector 4. Connect the module end to the corresponding connector (match label colors) on the logic analyzer module. The module end is keyed. P6434 Probe Instructions...
  • Page 16: Low-Profile Extender Connection

    2. Position the low-profile end perpendicular to the connector and gently connect the extender as shown in Figure 4. 3. To connect the P6434 probe to the other end of the extender, follow the Direct Connection procedure on page 3.
  • Page 17: Disconnecting The P6434 Probe From The Sut

    Operating Basics Disconnecting the P6434 Probe from the SUT To disconnect the P6434 probe, follow these steps: 1. Gently pull the latch release grip to release the probe tip from the latch housing as shown in Figure 5. Grasp sides...
  • Page 18: Designing An Interface Between A P6434 Probe And A Sut

    Designing an Interface Between a P6434 Probe and a SUT This section provides you with some guidelines for designing your own P6434 probe interface on the SUT. The guidelines contain information on the following topics: Mictor connectors Dimensions and placement of connectors...
  • Page 19: Figure 6: Latch Housing Dimensions

    Designing an Interface Between a P6434 Probe and a SUT You can purchase latch housing mechanisms to use with Mictor connectors. The latch housing surrounds the Mictor connector in your SUT and provides positive retention of the P6434 probe. Figure 6 shows the dimensions of the optional latch housings.
  • Page 20: Dimensions And Placement Of Compatible Mictor Connectors

    The placement of Mictor connectors depends on whether you plan to connect the P6434 probe directly to the SUT or use the Low-Profile Extender with the probe. Direct Connection Figure 7 shows the dimensions and minimum placement of surface-mounted connectors on a SUT.
  • Page 21: Low-Profile Extender Connection

    Designing an Interface Between a P6434 Probe and a SUT Low-Profile Extender When placing Mictor connectors in your SUT for use with an extender, you need Connection to keep one inch of clear space on the pin 1 side from the center of the Mictor connector in your SUT.
  • Page 22: Mechanical Layout And Pin Numbering Sequence

    Figure 11 on page 14 shows the pin assignments. NOTE. Be aware of the difference in the pin numbering sequence between the P6434 probe and the AMP, Inc. Mictor connectors. Figure 11 on page 14 illustrates the differences. 19X 0.43 mm (.017 in)
  • Page 23: Figure 10: Straddle-Mounted Connector Layout (Component Side)

    Designing an Interface Between a P6434 Probe and a SUT Figure 10 shows the positions and spacing between the pins and latch housing mounting holes of a straddle-mounted connector. NOTE. The straddle-mounted connector does not have a keyhole. Be sure to position pin 1 correctly when building the SUT to maintain the correct mapping of signals from your SUT to the logic analyzer probe sections and channels.
  • Page 24 Tektronix P6434 pinout and the Mictor connector pinout. Tektronix uses a counterclockwise pin assignment. Pin 1 is located at the top left, and pin 2 is located directly below it. Pin 20 is located on the bottom right, and pin 21 is located directly above it.
  • Page 25: Probe Channel Assignments

    Pins 1, 2, 37, and 38 are unused, and it is recommended that they be connected to ground. Tables 3 and 4 show the sections and channels and the P6434 probe pins to which they connect. Tables 3 and 4 also comply with the standard labeling scheme. The Mictor pin numbers are shown for reference only.
  • Page 26 Designing an Interface Between a P6434 Probe and a SUT Table 3: Pin 1 side probe channel assignments (cont.) Tektronix Tektronix AMP, Inc. AMP, Inc. Section and channel P6434 probe P6434 probe Mictor pin Mictor pin A probe C probe...
  • Page 27: Pin 1 Indicator

    1 when connecting the P6434 probe. Loading and Equivalent Circuits The load presented to the SUT by the P6434 probe is low. The load is equivalent to a 2 pF capacitance with 20 k resistance returned to a 2.2 V supply. The following approximation of the probe loading is sufficient for most circuit simulation calculations.
  • Page 28: Figure 13: Equivalent Circuit For The P6434 Probe With A Low-Profile Extender

    The extender is useful in a SUT where signal risetimes are greater than one or two nanoseconds. Faster risetimes cause transmission line reflections on signals. Figure 13 shows the equivalent circuit for the P6434 probe with a Low-Profile Extender. Mictor connector equivalent circuit Mictor connector equivalent circuit 0.7 pF...
  • Page 29 Designing an Interface Between a P6434 Probe and a SUT P6434 Probe Instructions...
  • Page 30: Service Information

    Disassembly and reassembly procedures Functional verification procedure Maintenance The P6434 probe does not require scheduled or periodic maintenance. To maintain good electrical contact, keep the probe free of dirt, dust, and contaminants. Also, ensure that any electrically conductive contaminants are removed.
  • Page 31: Circuit Description

    Service Information Circuit Description The P6434 probe contains 34 sets of signal connections (32 used as data channels and two used as clock or qualifier channels). The probe tip connection is a 38-pin Mictor connector by AMP, Inc. Each signal line has a 20 k 1% resistor (shunted by a 0.23 pF capacitor) in series with an approximately five foot long...
  • Page 32: Figure 14: Vertical Dimensions Of The P6434 Probe And Low-Profile Extender

    Designed to meet Tektronix standard 062-2847-00 class 5. Not to exceed SUT thermal considerations. Forced air cooling might be required. Table 8 shows the certifications and compliances that apply to the P6434 probe. Table 8: Certifications and compliances EC Compliance There are no current European Directives that apply to this product.
  • Page 33: Disassembling The Probe

    Service Information Disassembling the Probe The following procedures describe disassembling the P6434 probe. If you are installing the connector parts replacement kit, follow the Probe Tip procedures on pages 22 and 25. If you are installing either of the cable replacement kits, you must also perform the Latch Release Grip and Module End procedures.
  • Page 34: Latch Release Grip

    When you open the latch release grip, the latch release cord comes out of the grip, thereby detaching the grip from the latch release on the probe. Latch release cords Slots Latch release grip Figure 16: Disassembling the latch release grip P6434 Probe Instructions...
  • Page 35: Module End

    .050 inch hexagonal screwdriver, and open the housing. 2. Remove the pin 1 and pin 38 cables with connectors attached. 3. Remove the trim pieces from the connector housing. Trim piece Figure 17: Disassembling the module end P6434 Probe Instructions...
  • Page 36: Reassembling The Probe

    Service Information Reassembling the Probe Use the following procedures to resassemble the P6434 probe. NOTE. When reassembling the probe, you must use both the new board holder and both elastomer connectors included with the service kit. These components have design improvements that must be replaced as a set.
  • Page 37: Figure 19: Positioning The Elastomer Connector

    Pin 1 cable Board holder Figure 20: Positioning the circuit board in the probe 7. Turn the probe over and repeat steps 4 through 6 for the pin 38 side of the probe. P6434 Probe Instructions...
  • Page 38: Latch Release Grip

    1. Place the latch release cords into the latch releases as shown in Figure 22. 2. Push the latch release downward to force the latch release cord to snap through the slot and into the small hole. P6434 Probe Instructions...
  • Page 39: Figure 22: Reattaching The Latch Release Cords To The Latch Releases

    Figure 23. Figure 23: Reconnecting the latch release cords to the latch release grip 4. You may need to reapply labels. Refer to the description of Labels on page 2 for information on how to apply labels. P6434 Probe Instructions...
  • Page 40: Module End

    4. Attach the case halves and reconnect the screws as shown in Figure 24. 5. You may need to reapply labels. Refer to the description of Labels on page 2 for information on how to apply labels. P6434 Probe Instructions...
  • Page 41: Functional Verification

    To perform the functional verification procedure, follow these steps: 1. Connect the module ends of the P6434 probe to the logic analyzer module. 2. Connect the probe tip to J5 on the the test fixture as shown in Figure 25.
  • Page 42: Figure 26: Example Of The Activity Indicator Dialog Box

    Figure 26: Example of the Activity Indicator dialog box 11. Verify that none of the connected channels are stuck high or stuck low. 12. Repeat this procedure for additional probes. This completes the functional verification. P6434 Probe Instructions...
  • Page 43 Service Information P6434 Probe Instructions...
  • Page 44: Replaceable Parts

    Replaceable Parts This chapter contains a list of the replaceable components for the P6434 Probe. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
  • Page 45 Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow. Tektronix part number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
  • Page 46 PROBE; P6434 MASS TERMINATION; 34 CHANNEL 80009 010-6434-01 118-9479-00 SERVICE KIT; MECHANICAL PARTS INCLUDES: 80009 118-9479-00 –1 LABEL SHEET; PROBE TIP AND MODULE ENDS, P6434 –2 SCREWS, #1–72 x 0.375 BUTTON HEAD –3 NUTS, #1–72 HEX –4 PROBE TIP CASE HALVES –9 PULL GRIP HALVES –10...
  • Page 47 119-4859-00 POWER SUPPLY (JP):18W,WALL MOUNT,100VAC 60HZ 0GV90 WD49E1500C12CP INPUT,12VDC 1.5A INPUT,UNREGULATED,183CM CABLE,STR CO (NOT SHOWN) *Contact your Tektronix representative for pricing of larger quantities of latch housings or Precision Interconnect as listed in the manufacturers cross index. P6434 Probe Instructions...
  • Page 48: Figure 27: P6434 Probe Exploded View

    Replaceable Parts The cable kits are not interchangeable. Be sure to order the correct kit number for items 7 or 8. Pin 1 side Pin 1 Pin 38 side Figure 27: P6434 probe exploded view P6434 Probe Instructions...
  • Page 49 Replaceable Parts P6434 Probe Instructions...

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