Tektronix TDS7054 Service Manual
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Tektronix TDS7054 Service Manual

Tektronix TDS7054 Service Manual

Tds7000 series, digital phosphor
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Enlarged version
Service Manual
TDS7000 Series
Digital Phosphor Oscilloscopes
(TDS7104 & TDS7054)
071-0711-03
This document applies to firmware version 2.3.2
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

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  • Page 1 Service Manual TDS7000 Series Digital Phosphor Oscilloscopes (TDS7104 & TDS7054) 071-0711-03 This document applies to firmware version 2.3.2 and above. Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so.
  • Page 2 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. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077...
  • Page 3 (1) year from the date of shipment. If this product proves defective during its warranty period, Tektronix, at its option, will either repair the defective product without charge for parts and labor, or provide a replacement in exchange for the defective product.

  • Page 5: Table Of Contents

    ......... 2- - 11 TDS7104 & TDS7054 Service Manual...
  • Page 6 Sine Wave Generator Leveling Procedure ......4- - 81 TDS7104 & TDS7054 Service Manual...
  • Page 7 ........... . . 7- - 2 TDS7104 & TDS7054 Service Manual...
  • Page 8 Mfr. Code to Manufacturer Cross Index ......10- - 2 TDS7104 & TDS7054 Service Manual...
  • Page 9 ..4- -61 Figure 4- -28: Delta time accuracy test hookup ....4- -62 TDS7104 & TDS7054 Service Manual...
  • Page 10 ......6- -32 Figure 6- -19: Removing the hard disk drive from the cartridge ..6- -32 TDS7104 & TDS7054 Service Manual...
  • Page 11 ........10- -13 TDS7104 & TDS7054 Service Manual...
  • Page 12 Table 6- -5: Power supply voltages ......6- -56 viii TDS7104 & TDS7054 Service Manual...
  • Page 13 Table 7- -2: Optional accessories ......7- -3 TDS7104 & TDS7054 Service Manual...
  • Page 14 Table of Contents TDS7104 & TDS7054 Service Manual...

  • Page 15: 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. TDS7104 & TDS7054 Service Manual...
  • Page 16 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: CAUTION WARNING Protective Ground Refer to Manual High Voltage (Earth) Terminal Mains Disconnected Mains Connected Standby OFF (Power) ON (Power) TDS7104 & TDS7054 Service Manual...

  • Page 17: Service Safety Summary

    Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. xiii TDS7104 & TDS7054 Service Manual...
  • Page 18 Service Safety Summary TDS7104 & TDS7054 Service Manual...

  • Page 19: Preface

    I/O port connectors, that is listed in the replaceable parts list of Chapter 10. Safety Symbols and terms related to safety appear in the Service Safety Summary found at the beginning of this manual. TDS7104 & TDS7054 Service Manual...

  • Page 20: Related Documentation

    Related Documentation The oscilloscope, electrical sampling modules and optical sampling modules come with the following manuals: H CSA7000, TDS7000 & TDS6000 Series User manual. Tektronix part number 071-7010-XX. H CSA7000, TDS7000 & TDS6000 Series Reference manual. Tektronix part number 020-2404-XX.

  • Page 21: Contacting Tektronix

    6:00 a.m. - - 5:00 p.m. Pacific time This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. xvii...
  • Page 22 Preface xviii TDS7104 & TDS7054 Service Manual...

  • Page 23: Specifications

    Your oscilloscope is shown in Table 1- -1. Table 1- 1: TDS7000 models Number of Maximum sample channels rate (real time) Model Bandwidth TDS7054 500 MHz 5 GS/s TDS7104 1 GHz 10 GS/s 1- 1 TDS7104 & TDS7054 Service Manual...

  • Page 24: Acquisition Features

    Waveform expressions can even contain measurement results and other math waveforms. Spectral Analysis. Display spectral magnitude and phase waveforms based on your time-domain acquisitions. Control the instrument using the traditional spectrum analyzer controls such as span and center frequency. 1- 2 TDS7104 & TDS7054 Service Manual...

  • Page 25: Display Features

    You can use the A and B triggers together to set up a delay-by-time or delay-by-events trigger condition. Comm Triggers. Option SM only. Use comm triggers to trigger on communica- tion signals. 1- 3 TDS7104 & TDS7054 Service Manual...

  • Page 26: Convenience Features

    Graphical aids in the help windows assist you in getting to the information you need. You can also access the help topics through a table of contents or index. 1- 4 TDS7104 & TDS7054 Service Manual...

  • Page 27: Specification Tables

    8-bit resolution, separate digitizers for each channel sample simultaneously Sensitivity range 1 MΩ: 1 mV/div to 10 V/div, in a 1-2-5 sequence 50 Ω: 1 mV/div to 1 V/div, in a 1-2-5 sequence Fine adjustment available with ≥1% resolution 1- 5 TDS7104 & TDS7054 Service Manual...
  • Page 28 ≤30 °C, derated by 2.5 MHz/°C above 30 °C SCALE range Bandwidth 1 mV/div to 1.99 mV/div TDS7054: DC to 450 MHz TDS7104: DC to 500 MHz 2 mV/div to 4.98 mV/div TDS7054: DC to 500 MHz TDS7104: DC to 600 MHz 5 mV/div to 9.95 mV/div...
  • Page 29 Net offset is the nominal voltage that must be applied to the channel to bring the trace to center screen. Net offset = offset - - (position × volts/division) and is expressed in volts 1- 7 TDS7104 & TDS7054 Service Manual...
  • Page 30 Net offset = offset - - (position × volts/division) and is expressed in volts Nonlinearity, typical < 1 LSB differential, < 1 LSB integral, independently based 1- 8 TDS7104 & TDS7054 Service Manual...
  • Page 31 6.6 bits sample rate, Sample acquisition mode 1 MHz, 9.2 div, 10 MS/s 8.7 bits sample rate, HiRes acquisi- tion mode 1 GHz, 6.5 div, 10 GS/s 5.5 bits sample rate, Sample acquisition mode 1- 9 TDS7104 & TDS7054 Service Manual...

  • Page 32: Table 1- 3: Horizontal And Acquisition System Specifications

    Equivalent-time acquisition can be enabled or disabled. When disabled, waveforms are interpolated at the fastest time base settings. Seconds/division range 200 ps/div to 40 s/div Horizontal delay range 0 s to 1000 s 1- 10 TDS7104 & TDS7054 Service Manual...
  • Page 33 Option 3M: 742- - 2968 50,000 points Standard: 10- - 40 Option 2M: 41- - 164 Option 3M: 82- - 328 500,000 points Standard: 1- - 4 Option 2M: 4- - 16 Option 3M: 8- - 32 1- 11 TDS7104 & TDS7054 Service Manual...

  • Page 34: Table 1- 4: Trigger Specifications

    ≥10 mV/div and ≤1 V/div 1.0 div, from DC to 500 MHz Trigger level or threshold range Trigger Source Range ±12 divisions from center of Any channel screen ±8 V Auxiliary input Line Not settable 1- 12 TDS7104 & TDS7054 Service Manual...
  • Page 35 B trigger event and the first B trigger (B Event), typical event event B event width ≥1 ns Minimum pulse width, — typical Maximum frequency, typical — B event frequency ≤500 MHz 1- 13 TDS7104 & TDS7054 Service Manual...
  • Page 36 +100 ns maximum Hold time (time from clock - - 1 ns minimum edge to data transition) +102 ns maximum Setup time + Hold time +2 ns minimum (algebraic sum of the two settings) 1- 14 TDS7104 & TDS7054 Service Manual...

  • Page 37: Table 1- 5: Display Specifications

    0.33 mm horizontal, 0.22 mm vertical Contrast ratio, typical 150:1 Response time, typical 50 ms, black to white Display refresh rate 59.94 frames per second Displayed intensity levels Supports Windows SVGA high-color mode (16-bit) 1- 15 TDS7104 & TDS7054 Service Manual...

  • Page 38: Table 1- 6: Input/Output Port Specifications

    SPC was last run. Frequency range 9.8 MHz to 10.2 MHz. n Input sensitivity ≥200 mV Input voltage, maximum Input impedance 1.5 kΩ, 40 pF. Measure impedance at >100 kHz to make the blocking capacitor invisible 1- 16 TDS7104 & TDS7054 Service Manual...
  • Page 39 IEEE 488.2 standard interface Scope VGA video port Lower video port, DB-15 female connector, 31.6 kHz sync, EIA RS-343A compliant, connect to show the instrument display, including live waveforms, on an external monitor 1- 17 TDS7104 & TDS7054 Service Manual...

  • Page 40: Table 1- 7: Data Storage Specifications

    0.25 in × 1.25 in size UL198G and CSA C22.2, No. 59, fast acting: 8 A, 250 V (Tektronix part number 159-0046-00, Bussman ABC-8, Littelfuse 314008) 5 mm × 20 mm size IEC127, sheet 1, fast acting “F”, high breaking capacity: 6.3 A, 250 V (Bussman GDA 6.3, Littelfuse 21606.3)

  • Page 41: Table 1- 9: Mechanical Specifications

    Construction material Chassis parts are constructed of aluminum alloy, front panel is constructed of plastic laminate, circuit boards are constructed of glass laminate, outer shell is molded and textured from a polycarbonate/ABS blend 1- 19 TDS7104 & TDS7054 Service Manual...

  • Page 42: Table 1- 10: Environmental Specifications

    5 Hz to 500 Hz, 10 minutes on each axis, 3 axis, 30 minutes total, with floppy disk and/or CD-ROM installed Nonoperating 2.28 g from 5 Hz to 500 Hz, 10 minutes on each axis, 3 axis, 30 minutes total 1- 20 TDS7104 & TDS7054 Service Manual...

  • Page 43: Table 1- 11: Certifications And Compliances

    Power Harmonic Current Emissions If interconnect cables are used, they must be low-EMI shielded cables such as the following Tektronix part numbers or their equivalents: 012-0991-01, 012-0991-02 or 012-0991-03 GPIB Cable; 012-1213-00 (or CA part number 0294-9) RS-232 Cable; 012-1214-00 Centronics Cable;...
  • Page 44 Test and measuring Safety Class Class 1 (as defined in IEC 1010-1, Annex H) - - grounded product Pollution Degree Pollution Degree 2 (as defined in IEC 1010-1). Note: Rated for indoor use only. 1- 22 TDS7104 & TDS7054 Service Manual...

  • Page 45: Operating Information

    CAUTION. Keep the bottom and sides of the oscilloscope clear of obstructions to ensure proper cooling. Tables 1- -8 and 1- -10 on pages 1- -18 and 1- -20 list the operating requirements for the oscilloscope. Power source, temperature, humidity, and altitude are listed. 2- 1 TDS7104 & TDS7054 Service Manual...

  • Page 46: Connect The Peripherals

    Refer to the TDS7000 Rackmount Installation Instructions for information on installing the rackmount kit. Other Refer to the Application release notes on your product CD set for possible additional accessory installation information not covered in this manual. 2- 2 TDS7104 & TDS7054 Service Manual...

  • Page 47: Figure 2- 1: Locations Of Peripheral Connectors On Rear Panel

    GPIB ..Oscilloscope monitor (large-screen oscilloscope display). . . Card Slot ..Figure 2- 1: Locations of peripheral connectors on rear panel 2- 3 TDS7104 & TDS7054 Service Manual...

  • Page 48: Power On The Instrument

    5. If the oscilloscope does not power on, press the On/Standby switch to power on the instrument (see Figure 2- -3 for the switch location). 6. Wait for the boot routine and low-level self test to complete. 2- 4 TDS7104 & TDS7054 Service Manual...

  • Page 49: Powering Off The Oscilloscope

    3. In the Control Panel, double-click Add/Remove Programs. 4. Click the Startup Disk tab. 5. Insert a floppy disk into the disk drive and follow the on-screen instructions to create the startup disk. 2- 5 TDS7104 & TDS7054 Service Manual...

  • Page 50: Software Installation

    Application Installation. Use the procedures that accompany your Product Software CD should reinstalling the oscilloscope application software become necessary. The compact disc contains the files necessary to restore the oscilloscope application and other software for the oscilloscope. 2- 6 TDS7104 & TDS7054 Service Manual...

  • Page 51: Operating Information

    When the oscilloscope is in the Tool bar mode, most of the control windows can be accessed by touching buttons at the top of the display. 2- 7 TDS7104 & TDS7054 Service Manual...
  • Page 52 If a control menu is change the position and scale using displayed, these the multipurpose knobs readouts move to the Controls Status: Quick reference to graticule area vertical, horizontal, and trigger selections, scale, and parameters 2- 8 TDS7104 & TDS7054 Service Manual...

  • Page 53: Front Panel Controls Map

    Press ZOOM to add a magnified graticule to the display. Press HORIZ or VERT to select the axis to magnify. Turn channel displays on and off. Vertically scale, position, or change the input termination. 2- 9 TDS7104 & TDS7054 Service Manual...

  • Page 54: Front Panel I/O Map

    When the verification is finished, the resulting status will appear in the diagnostics control window. 4. Verify that no failures are found. Signal Path Compensation Run the Signal Path Compensation. 1. Select Instrument Calibration . . . from the Utility menu. 2- 10 TDS7104 & TDS7054 Service Manual...

  • Page 55: Using The Online Help

    (with the label Restore Help). Touch the Restore Help button to restore the help window to its normal size. 2- 11 TDS7104 & TDS7054 Service Manual...
  • Page 56 Operating Information 2- 12 TDS7104 & TDS7054 Service Manual...

  • Page 57: Theory Of Operation

    Processor System. The processor system contains two processor boards with microprocessors that control the entire oscilloscope. The basic configuration supports four input channels labeled Ch 1 through Ch 4, provides an external 3- 1 TDS7104 & TDS7054 Service Manual...

  • Page 58: Display Panel

    NLX Board. The NLX board provides standard Windows functionality and I/O port interfaces to the rear panel. NLX Riser Board. Both processor systems, the floppy drive, CD-ROM drive, and hard drive are connected together by, and communicate through, the riser board. 3- 2 TDS7104 & TDS7054 Service Manual...

  • Page 59: Rear Panel

    Power is distributed throughout the oscilloscope through the front and rear power distribution bus boards. Fans The fan assembly provides forced air cooling for the oscilloscope. The fans are controlled by the CPU and microprocessor. 3- 3 TDS7104 & TDS7054 Service Manual...
  • Page 60 Theory of Operation 3- 4 TDS7104 & TDS7054 Service Manual...

  • Page 61: Performance Verification

    (See Table 4- -1: Required equipment and materials on page 4- -17). If you are not familiar with operating this oscilloscope, read the oscilloscope reference or user manuals or explore the online help. 4- 1 TDS7104 & TDS7054 Service Manual...

  • Page 62: Conventions

    “menu bar” refers to a row of menus at the top of the display. You can switch between toolbar and menu bar operating modes by pushing the button near the top right corner of the display. See Figure 4- -1. 4- 2 TDS7104 & TDS7054 Service Manual...

  • Page 63: Figure 4- 1: Toolbar And Menu Bar

    H The procedures assume you have connected a mouse to the oscilloscope so you can click on the screen controls. If you have not connected a mouse, you can use the touch screen to operate all the screen controls. 4- 3 TDS7104 & TDS7054 Service Manual...
  • Page 64 Performance Verification 4- 4 TDS7104 & TDS7054 Service Manual...

  • Page 65: Brief Procedures

    Wait: The internal diagnostics do an exhaustive verification of proper oscilloscope function. This verification may take several minutes. When the verification is finished, the resulting status will appear in the diagnostics control window. 4- 5 TDS7104 & TDS7054 Service Manual...

  • Page 66: Functional Tests

    “that is about five divisions in amplitude” or “has a period of about six horizontal divisions,” etc., do NOT interpret the quantities given as limits. Operation within limits is checked in Performance Tests, which begin on page 4- -27. 4- 6 TDS7104 & TDS7054 Service Manual...

  • Page 67: Verify All Input Channels

    (its label will be highlighted). If this is the case, it is not necessary to press the button. Verify All Input Channels Equipment One BNC cable, such as Tektronix part number 012-0076-00 required Prerequisites None 1. Initialize the oscilloscope: Push the front-panel DEFAULT SETUP button.

  • Page 68: Figure 4- 3: Channel Button Location

    H Peak Detect mode displays an actively acquiring waveform on-screen with the noise present in Sample mode “peak detected.” H Hi Res mode displays an actively acquiring waveform on-screen with the noise that was present in Sample mode reduced. 4- 8 TDS7104 & TDS7054 Service Manual...
  • Page 69 8. Test all channels: Repeat steps 2 through 7 until all four input channels are verified. 9. Remove the test hookup: Disconnect the BNC cable from the channel input and the probe compensation output. 4- 9 TDS7104 & TDS7054 Service Manual...

  • Page 70: Verify The Time Base

    Brief Procedures Verify the Time Base Equipment One BNC cable, such as Tektronix part number 012-0076-00 required Prerequisites None 1. Initialize the oscilloscope:Push the front-panel DEFAULT SETUP button. 2. Hook up the signal source: Connect the BNC cable from the probe com- pensation output to the CH 1 input as shown in Figure 4- -4.
  • Page 71 Verify that the display switches quickly between two different points in time (the rising and falling edges of this signal). 7. Remove the test hookup: Disconnect the BNC cable from the channel input and the probe compensation output. 4- 11 TDS7104 & TDS7054 Service Manual...

  • Page 72: Verify The A (Main) And B (Delayed) Trigger Systems

    Brief Procedures Verify the A (Main) and B Equipment One BNC cable, such as Tektronix part number 012-0076-00 (Delayed) Trigger Systems required Prerequisites None 1. Initialize the oscilloscope: Push the front-panel DEFAULT SETUP button. 2. Hook up the signal source: Connect the BNC cable from the probe com- pensation output to the CH 1 input as shown in Figure 4- -5.

  • Page 73: Verify The File System

    6. Remove the test hookup: Disconnect the BNC cable from the channel input and the probe compensation output. Verify the File System Equipment One BNC cable, such as Tektronix part number 012-0076-00 required One 720 K or 1.44 Mbyte, 3.5 inch DOS-compatible formatted disk. Prerequisites None 1.

  • Page 74: Figure 4- 6: Setup For The File System Test

    This displays a familiar Windows dialog box for locating the settings file that you want to recall. c. In the Recall Save Instrument Setups From dialog box, select the 3 Floppy (A:) icon in the Look in: drop-down list. 4- 14 TDS7104 & TDS7054 Service Manual...
  • Page 75 9. Remove the test hookup: a. Disconnect the BNC cable from the channel input and the probe compensation output. b. Remove the floppy disk from the floppy disk drive. 4- 15 TDS7104 & TDS7054 Service Manual...
  • Page 76 Brief Procedures 4- 16 TDS7104 & TDS7054 Service Manual...

  • Page 77: Performance Tests - Semi-Automated Method

    PVsetup.exe, located on TDS7000 Series Product 1 ea. Software CD-ROM that is included as standard equipment with the oscilloscope GPIB cables GPIB cable, 1 m minimum length, Tektronix part number 2 ea. 002-0991-01 or similar 50 Ω, male-to-male BNC connectors, Tektronix part BNC cable 1 ea.
  • Page 78 Performance Tests — Semi-Automated Method Table 4- 1: Required equipment and materials (Cont.) Category Specific equipment required Quantity Terminators Short circuit, SMA female connector, Tektronix part 2 ea number 015-1021-00 Ratio: 2X; impedance 50 Ω; connectors: female BNC Attenuator 1 ea...

  • Page 79: Overview Of The Procedure

    Check time accuracy for pulse, glitch, timeout, and width triggering Characterize signal source outputs Requires manual setup changes Check delay between channels May require manual setup changes Check delta time measurement accuracy Requires manual setup changes 4- 19 TDS7104 & TDS7054 Service Manual...

  • Page 80: Initial Instrumentation Setup

    GPIB cable GPIB cable TDS7000 oscilloscope Controller Fluke 9500B Connect Fluke 9520 or 9530 output modules to oscilloscope CH1 through CH 4 inputs and AUX IN as shown Figure 4- 7: Initial setup 4- 20 TDS7104 & TDS7054 Service Manual...

  • Page 81: Table 4- 3: Gpib Devices Required By Test Program

    Define GPIB devices and their addresses for compatibility with the test program as shown in Table 4- -3. Table 4- 3: GPIB devices required by test program Device name GPIB address <controller> DUT1 4- 21 TDS7104 & TDS7054 Service Manual...

  • Page 82: Test Program Installation

    3. Follow the instructions: Follow the instructions presented by the installer to install the test program. The test program directory “tekcats” must be installed at the root level (typically C:\tekcats\) of your system. 4- 22 TDS7104 & TDS7054 Service Manual...

  • Page 83: Test Program Execution

    Figure 4- 8: Setup to characterize signal source outputs NOTE. After you have completed these tests you must manually peform the long- -term sample rate and delay time accuracy and reference test on page 4- -57 to verify the external reference. 4- 23 TDS7104 & TDS7054 Service Manual...

  • Page 84: Figure 4- 9: Setup To Check Delay Between Channels

    BNC T Fluke 9520 output module connector BNC to SMA Fluke 9500B adapter Leave unused output modules (not shown) connected to Fluke 9500B Figure 4- 10: Setup to check delta time accuracy 4- 24 TDS7104 & TDS7054 Service Manual...

  • Page 85: Figure 4- 11: Setup To Check Probe Compensation Output

    OUT to CH 1 input Figure 4- 12: Setup to check analog signal output TDS7000 oscilloscope BNC cable from AUX OUT to CH 1 input Figure 4- 13: Setup to check auxiliary output 4- 25 TDS7104 & TDS7054 Service Manual...
  • Page 86 Performance Tests — Semi-Automated Method 4- 26 TDS7104 & TDS7054 Service Manual...

  • Page 87: Performance Tests

    20 minutes, and must be operating at an ambient tempera- ture as listed in Table 1- -10. (The warm-up requirement is usually met in the course of meeting the Self Tests and Functional Tests prerequisites listed above). 4- 27 TDS7104 & TDS7054 Service Manual...

  • Page 88: Equipment Required

    2 V 14. Splitter, Power Frequency range: DC to 4 GHz. Fluke 9500B Checking Analog Bandwidth Tracking: >2.0% 15. Adapter (four required) Male N-to-female BNC Tektronix part number Checking Analog Bandwidth 103-0045-00 4- 28 TDS7104 & TDS7054 Service Manual...
  • Page 89 To make measurements beyond ±8 V, use either the P6139A probe (good to 500 V), or refer to the catalog for a recom- mended probe. P6139A is not an appropriate probe for the TDS7104 oscilloscopes. 4- 29 TDS7104 & TDS7054 Service Manual...

  • Page 90: Tds7000 Test Record

    - - 1.0355 V +5 Div position setting, - - 1 V offset 200 mV Vert scale setting, + 11.5195 V __________ __________ + 11.6805 V - - 5 Div position setting, +10 V offset 4- 30 TDS7104 & TDS7054 Service Manual...
  • Page 91 - - 5 Div position setting, +10 V offset 1.01 V Vert scale setting, - - 18.379 V __________ __________ - - 17.621 V +5 Div position setting, - - 10 V offset 4- 31 TDS7104 & TDS7054 Service Manual...
  • Page 92 Analog bandwidth 100 mV 424 mV __________ __________ 100 mV 424 mV __________ __________ 100 mV 424 mV __________ __________ 100 mV 424 mV __________ __________ Delay between channels __________ __________ 50 ps 4- 32 TDS7104 & TDS7054 Service Manual...
  • Page 93 __________ __________ +0.75 divisions Internal reference output voltages Vout (HI) 1.0 V __________ __________ Vout (LO) __________ __________ 0.25 V Delta time measurement ≤0.030 ns TDS7104 __________ __________ ≤0.060 ns TDS7054 __________ __________ 4- 33 TDS7104 & TDS7054 Service Manual...
  • Page 94 Analog signal output, 50 Ω p-p ≥ 44 mV p-p ≤ 66 mV __________ __________ Probe compensation output signal Frequency 950 Hz __________ __________ 1.050 kHz Voltage (difference) 990 mV __________ __________ 1010 mV 4- 34 TDS7104 & TDS7054 Service Manual...

  • Page 95: Signal Acquisition System Checks

    H Connect the Sense input of the generator through a second dual-ba- nana connector followed by a 50 Ω precision coaxial cable to the other side of the BNC T connector. Now connect the BNC T connector to CH 1. See Figure 4- -14. 4- 35 TDS7104 & TDS7054 Service Manual...

  • Page 96: Figure 4- 14: Initial Test Hookup

    H From the tool bar, touch MEAS and select the Ampl tab, then touch Mean to measure the mean of the current channel. H Touch Setup Statistics and touch Measurement Statistics Mean to display the measurement statistics of the mean measurement. 4- 36 TDS7104 & TDS7054 Service Manual...

  • Page 97: Table 4- 5: Dc Voltage Measurement Accuracy

    Measure the test signal: Press Close. Read the measurement results at the measurement statistics measurement readout. See Figure 4- -15. 4- 37 TDS7104 & TDS7054 Service Manual...

  • Page 98: Figure 4- 15: Measurement Of Dc Accuracy At Maximum Offset And Position

    Test all channels: Repeat substeps a through f for all four channels. 3. Disconnect the hookup: a. Set the generator output to 0 V. b. Disconnect the cable from the generator output at the input connector of the channel last tested. 4- 38 TDS7104 & TDS7054 Service Manual...

  • Page 99: Check Dc Gain Accuracy

    CH 1 through an adapter. See Figure 4- -16. TDS7000 oscilloscope Output Sense DC calibrator Dual banana to BNC adapters BNC T connector 50 Ω coaxial cables Figure 4- 16: Initial test hookup 4- 39 TDS7104 & TDS7054 Service Manual...
  • Page 100 H Press Close. c. Set the vertical scale: Set the vertical SCALE to one of the settings in Table 4- -6 that is not yet checked. (Start with the first setting listed). 4- 40 TDS7104 & TDS7054 Service Manual...

  • Page 101: Table 4- 6: Gain Accuracy

    H From the tool bar touch VERT and then touch Position. H Use the keypad to set vertical position to the number of divisions listed in the table for the current vertical scale setting and offset. H Touch Offset. 4- 41 TDS7104 & TDS7054 Service Manual...

  • Page 102: Figure 4- 17: Measurement Of Dc Gain Accuracy

    H Repeat substep e using the current vertical scale, position, offset, and new generator setting for the second mean. g. Check against limits: H Subtract the second measurement mean from the first measurement mean for the current vertical scale, position, and offset. 4- 42 TDS7104 & TDS7054 Service Manual...

  • Page 103: Check Analog Bandwidth

    H Touch Average and set the number of averages to 16. H Touch the Equivalent Time ET button. H From the tool bar, touch MEAS. Touch Setup Ref Levs; then touch the Determine Base, Top Form Min-Max button. 4- 43 TDS7104 & TDS7054 Service Manual...

  • Page 104: Figure 4- 18: Initial Test Hookup

    For the optional setup using a leveled sine wave generator with a leveling head, see Figure 4- -19 and, if using this optional setup with the example Tektronix SG 504, set the generator output to 6 MHz. TDS7000 oscilloscope Sine wave...
  • Page 105 Table 4- -7 not yet checked. (Start with the 100 mV setting). e. Set the triggering coupling: Touch the Coupling DC button. 4- 45 TDS7104 & TDS7054 Service Manual...

  • Page 106: Table 4- 7: Analog Bandwidth

    H Set the frequency of the generator, as shown on screen, to the test frequency in Table 4- -7 that corresponds to the vertical scale set in substep d. See Figure 4- -20. 4- 46 TDS7104 & TDS7054 Service Manual...

  • Page 107: Figure 4- 20: Measurement Of Analog Bandwidth

    H Passed the 100 mV vertical scale setting just checked in this procedure. H Passed the Verify Internal Adjustment, Self Compensation, and Diagnostics procedure found under Self Tests, on page 4- -5. 4- 47 TDS7104 & TDS7054 Service Manual...

  • Page 108: Check Delay Between Channels

    1. Install the test hookup and preset the instrument controls: a. Initialize the front panel:Press the DEFAULT SETUP button. b. Modify the initialized front-panel control settings: H Do not adjust the vertical position of any channel during this procedure. 4- 48 TDS7104 & TDS7054 Service Manual...

  • Page 109: Figure 4- 21: Initial Test Hookup

    Save a CH 2 waveform: Press the CH 2 Vertical button. From the button bar, touch the Refs button and select the Ref 2 tab. Touch the Save Wfm to Ref2 Save button. 4- 49 TDS7104 & TDS7054 Service Manual...
  • Page 110 Next, note the corresponding time reference point for the right-most waveform. See Figure 4- -22 on page 4- -51. H Press CURSORS and select the V Bars Cursors Type. H Touch the Close button. 4- 50 TDS7104 & TDS7054 Service Manual...

  • Page 111: Figure 4- 22: Measurement Of Channel Delay

    Add the first CH 1 to CH 2 skew measurement to the second CH 1 to CH 2 skew measurement and divide the result by 2. Use Table 4- -8. 4- 51 TDS7104 & TDS7054 Service Manual...

  • Page 112: Check Channel Isolation (Crosstalk)

    Check Channel Isolation Equipment One leveled sine-wave generator (Item 12) (Crosstalk) required One 50 Ω, precision coaxial cable (Item 4) One 2X attenuator (item 25) Prerequisites See page 4- - 27 4- 52 TDS7104 & TDS7054 Service Manual...

  • Page 113: Figure 4- 23: Initial Test Hookup

    H Set the generator to output a 100 MHz sine wave. Set the test signal amplitude for about five divisions on screen. Now fine adjust the generator output until the CH 1 Amplitude readout indicates the amplitude is 500 mV. Readout may fluctuate around 500 mV. 4- 53 TDS7104 & TDS7054 Service Manual...
  • Page 114 H Move the signal to the CH 1 input, and change the Trigger Source to CH 1. H Press PUSH TO SET 50%. H Set the Vertical SCALE of CH 1, CH 2, CH 3, and CH 4 to 10 mV. 4- 54 TDS7104 & TDS7054 Service Manual...
  • Page 115 H Set the Horizontal SCALE to display 2 to 5 cycles of the signal. Set the generator output frequency to the full bandwidth of your instrument (500 MHz for the TDS7054. or 1000 MHz for the TDS7104). H Set the test signal amplitude for about five divisions on screen. Now fine adjust the generator output until the CH 1 Amplitude readout indicates the amplitude is 500 mV.
  • Page 116 50 mV. Readout may fluctuate around 50 mV. H Remove the 2X attenuator. H Repeat steps a through g. 4. Disconnect the hookup: Disconnect the cable from the generator output at the input connector of the channel. 4- 56 TDS7104 & TDS7054 Service Manual...

  • Page 117: Time Base System Checks

    Modify the initialized front-panel control settings: H Set the Vertical SCALE to 200 mV (or 500 mV with the optional Tektronix TG 501A Time Mark Generator). H Set the Horizontal SCALE to 200 ns. H From the button bar, touch the Vert button. Touch the Termination 50 Ω...
  • Page 118 H CHECK that the rising edge of the marker (or sine wave) crosses the center horizontal graticule line at a point within ±0.75 divisions of the center graticule. See Figure 4- -25 on page 4- -59. H Enter the number of divisions on the test record. 4- 58 TDS7104 & TDS7054 Service Manual...

  • Page 119: Figure 4- 25: Measurement Of Accuracy - Long-Term And Delay Time

    H Use the Vertical POSITION knob to center the display on screen. b. Measure logic levels: H From the button bar, touch MEAS and select the Ampl tab. H Touch the High and Low buttons. H Touch the Close button. 4- 59 TDS7104 & TDS7054 Service Manual...

  • Page 120: Figure 4- 26: Initial Test Hookup For External Reference

    H Move the cable from the CH 1 input to the rear-panel Ext Ref input (see Figure 4- -27). H Touch Menu to select menu mode. H Touch Utilities and select External Signals. 4- 60 TDS7104 & TDS7054 Service Manual...

  • Page 121: Reference

    H Touch the External button to select the internal reference (the button name changes to Internal). c. Perform a signal path compensation: H Touch Utilities and select Instrument Calibration. H Touch Calibrate and wait for the signal path compensation to finish. 4- 61 TDS7104 & TDS7054 Service Manual...

  • Page 122: Check Delta Time Measurement Accuracy

    2X attenuator BNC to SMA adapter Figure 4- 28: Delta time accuracy test hookup 1. Install the test hookup and preset the instrument controls: a. Initialize the oscilloscope: Press the DEFAULT SETUP button. 4- 62 TDS7104 & TDS7054 Service Manual...
  • Page 123 (MidRef) to something other than 150 mV. Set the reference level near the center of the pulse, above any noise, and below any overshoot or ringing on the pulse. 4- 63 TDS7104 & TDS7054 Service Manual...

  • Page 124: Table 4- 9: Delta Time Measurement

    Repeat for all other channels: H Note the Vertical SCALE setting of the channel just confirmed. H Press the Vertical channel button for the channel just confirmed to remove the channel from display. 4- 64 TDS7104 & TDS7054 Service Manual...

  • Page 125: Trigger System Checks

    50 Ω button. c. Hook up the test-signal source: Connect the output of the sine wave generator (Item 12) to CH 1. Do this through a 50 Ω precision coaxial cable, followed by a 10X 4- 65 TDS7104 & TDS7054 Service Manual...
  • Page 126 Set upper and lower limits that ensure triggering: See Figure 4- -30. H Press the front-panel ADVANCED button and select the A Event tab; then select width triggering by touching the Width button. 4- 66 TDS7104 & TDS7054 Service Manual...
  • Page 127 H Touch Upper Limit; then use the multipurpose knob to slowly decrease the Upper Limit readout until triggering is lost. H CHECK that the Upper Limit readout, after the oscilloscope loses triggering, is within 3.5 ns to 6.5 ns, inclusive. 4- 67 TDS7104 & TDS7054 Service Manual...
  • Page 128 1.9 s to 2.1 s, inclusive. H Enter the time on the test record. 4. Disconnect the hookup: Disconnect the cable from the generator output at the input connector of CH 1. 4- 68 TDS7104 & TDS7054 Service Manual...

  • Page 129: Check Sensitivity, Edge Trigger, Dc Coupled 4

    Connect one output of the T connector to CH 1 through a 50 Ω precision coaxial cable. Connect the other output of the T connector to the AUX INPUT through a 50 Ω precision coaxial cable and a 50 Ω terminator. See Figure 4- -31. 4- 69 TDS7104 & TDS7054 Service Manual...
  • Page 130 At horizontal scale settings of 2 ms/division and faster, TRIG’D will remain constantly lighted. It will flash for slower settings. H Press the Trigger Slope button to select the positive slope. 4- 70 TDS7104 & TDS7054 Service Manual...
  • Page 131 Use the TRIGGER LEVEL knob to stabilize the Main trigger. Touch B Trig Level and use the keypad or the multipurpose knob/FINE button to 4- 71 TDS7104 & TDS7054 Service Manual...
  • Page 132 H Enter the pass/fail result on the test record. H Leave the trigger system triggered on the positive slope of the waveform before proceeding to the next check. 4- 72 TDS7104 & TDS7054 Service Manual...
  • Page 133 NOTE. You just checked the trigger sensitivity. If desired, you may repeat steps 1 through 4c for the other channels (CH 2, CH 3, and CH 4). 5. Disconnect the hookup: Disconnect the cables from AUX IN and from the channel last tested. 4- 73 TDS7104 & TDS7054 Service Manual...

  • Page 134: Output Signal Checks

    H Press the Vertical CH 1 button to toggle it off. H Press the Vertical CH 3 button to display that channel. H Push Trigger Source to toggle the source to CH 3. 4- 74 TDS7104 & TDS7054 Service Manual...
  • Page 135 50 Ω button. H CHECK that the CH 2 High readout is ≥1.0 volt and that the CH 2 Low readout ≤0.25 volts. H Enter the high and low voltages on the test record. 4- 75 TDS7104 & TDS7054 Service Manual...
  • Page 136 H CHECK that the readout Ch2 Pk-Pk is between 80 mV and 120 mV, inclusive. H Enter the voltage on the test record. H From the button bar, touch the Vert button. Touch the Termination 50 Ω button. H Touch Close. 4- 76 TDS7104 & TDS7054 Service Manual...

  • Page 137: Check Probe Compensation Output 4

    CH 1 input Figure 4- 35: Initial test hookup b. Initialize the oscilloscope: Press the DEFAULT SETUP button. c. Modify the initialized front-panel control settings: H Set the Vertical SCALE to 200 mV. 4- 77 TDS7104 & TDS7054 Service Manual...
  • Page 138 H Touch Clear to remove the measurement. Figure 4- 36: Measurement of probe compensator frequency c. Save the probe compensation signal in reference memory: H Touch Refs; then select the Ref 1 tab. 4- 78 TDS7104 & TDS7054 Service Manual...
  • Page 139 H Adjust the output of the DC calibration generator until it precisely overlaps the top (upper) level of the stored probe compensation signal. (This value will be near 1000 mV). 4- 79 TDS7104 & TDS7054 Service Manual...
  • Page 140 (top level). H CHECK that the difference obtained is within 990 mV to 1010 mV, inclusive. H Enter voltage difference on test record. 3. Disconnect the hookup: Disconnect the cable from CH 1. 4- 80 TDS7104 & TDS7054 Service Manual...

  • Page 141: Sine Wave Generator Leveling Procedure

    Figure 4- 39: Sine wave generator leveling equipment setup 1. Install the test hookup: Connect the equipment as shown in Figure 4- -39. 2. Set the Generator: H Set the sine wave generator to a reference frequency of 10 MHz. 4- 81 TDS7104 & TDS7054 Service Manual...
  • Page 142 2. Set the Generator: H Set the sine wave generator to a reference frequency of 10 MHz. H Adjust the sine wave generator amplitude to the required number of divisions as measured by the oscilloscope. 4- 82 TDS7104 & TDS7054 Service Manual...
  • Page 143 3. The signal amplitude is now correctly set for the new frequency. H Disconnect the sine wave generator from the power sensor. H Connect the sine wave generator to the oscilloscope. 4- 83 TDS7104 & TDS7054 Service Manual...
  • Page 144 Performance Tests 4- 84 TDS7104 & TDS7054 Service Manual...

  • Page 145: Adjustment Procedures

    See Table 5- -1. Table 5- 1: Adjustments required for module replaced Module replaced Adjustment required Front panel assembly Acquisition board Processor board NLX processor assembly Display panel or display system 5- 1 TDS7104 & TDS7054 Service Manual...

  • Page 146: Required Equipment

    Setup.exe, located on the Adjustment Software disk that 1 ea is included with this manual GPIB cables GPIB cable, 1 m minimum length, Tektronix part number 2 (for separate 002-0991-01 or similar controller), 1 (for oscilloscope con-...

  • Page 147: Overview Of The Procedure

    C:\tekcats\rpt\. The filename of the report is <oscilloscope model>.<serial number>. If you have previously run the performance verification procedure, the adjustment results are appended to the end of the existing report file. 5- 3 TDS7104 & TDS7054 Service Manual...

  • Page 148: Instrumentation Setup

    Fluke 9500B Connecting the fifth output module to the oscilloscope is only required when prompted to connect the head by the adjustment program Figure 5- 1: Adjustment setup using a separate controller 5- 4 TDS7104 & TDS7054 Service Manual...
  • Page 149 PC-style menu bar across the top of the display. b. Pull down the Utility menu and then select GPIB Configuration ..This command will display the GPIB Configuration control window. 5- 5 TDS7104 & TDS7054 Service Manual...

  • Page 150: Table 5- 3: Gpib Devices Required By Test Program

    Fluke 9500B AUX1 6. Configure the oscilloscope controller: Perform these steps if you are using the oscilloscope as the controller. NOTE. If you use the USB port, this procedure will take much longer. 5- 6 TDS7104 & TDS7054 Service Manual...
  • Page 151 Right click the icon and then select Properties to display the National Instruments GPIB Interface Properties dialog box. g. Select the Device Templates tab. You should see a dialog box similar to the one shown in Figure 5- -3. 5- 7 TDS7104 & TDS7054 Service Manual...

  • Page 152: Table 5- 4: Renaming The Gpib Devices

    New name DEV1 DUT1 DEV2 DEV3 DEV4 AUX1 DEV5 DEV6 DEV7 Click on the (new) device DUT1 in the Device Name dialog box. m. Under DUT1 Attributes, set the Primary GPIB Address to 1. 5- 8 TDS7104 & TDS7054 Service Manual...

  • Page 153: Adjustment Program Installation

    2. Start the installation wizard: Select Run. . . in the Start menu and then enter D:\adjsetup.exe. 3. Follow the instructions: Follow the instructions presented by the installation wizard to install the adjustment program. 5- 9 TDS7104 & TDS7054 Service Manual...

  • Page 154: Adjustment Program Execution

    When the program asks whether you want to execute the performance verification or the adjustment procedure, select the adjustment procedure. 5- 10 TDS7104 & TDS7054 Service Manual...

  • Page 155: Maintenance

    Label any package that contains static-sensitive boards. 3. Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules. Do service of static-sensitive modules only at a static-free work station. 6- 1 TDS7104 & TDS7054 Service Manual...

  • Page 156: Inspection And Cleaning

    Do not use abrasive compounds on any part of the chassis that may damage the chassis. Clean the On/Standby switch using a dampened cleaning towel. Do not spray or wet the switch directly. 6- 2 TDS7104 & TDS7054 Service Manual...

  • Page 157: Flat Panel Display Cleaning

    Use a 75% isopropyl alcohol solution as a cleaner and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative. Inspection — Exterior. Inspect the outside of the oscilloscope for damage, wear, and missing parts, using Table 6- -1 as a guide.

  • Page 158: Table 6- 2: Internal Inspection Check List

    Remove devices that have distorted pins. Carefully straight- en pins (as required to fit the socket), using long-nose pliers, and reinsert firmly. Ensure that straightening action does not crack pins, causing them to break off. 6- 4 TDS7104 & TDS7054 Service Manual...
  • Page 159 7. Dry all parts with low-pressure, deionized air. 8. Dry all components and assemblies in an oven or drying compartment using low-temperature (125 _F to 150 _F) circulating air. Lubrication. There is no periodic lubrication required for this oscilloscope. 6- 5 TDS7104 & TDS7054 Service Manual...
  • Page 160 Maintenance 6- 6 TDS7104 & TDS7054 Service Manual...

  • Page 161: Removal And Installation Procedures

    NOTE. Read Equipment Required for a list of the tools needed to remove and install modules in this oscilloscope. See Table 6- - 3, on page 6- - 8. Read the cleaning procedure before disassembling the oscilloscope for cleaning. 6- - 7 TDS7104 & TDS7054 Service Manual...

  • Page 162: Table 6- -3: Tools Required For Module Removal

    Used to remove the rear panel nut Standard tool inch open-end wrench posts Used to remove the rear panel nut Standard tool inch open-end wrench posts MA-800G Soldering Aid Used to remove the front panel trim Standard tool 6- - 8 TDS7104 & TDS7054 Service Manual...

  • Page 163: Procedures For External Modules

    Reverse procedure to reinstall. 7. Reinstallation: Do in reverse steps 6 and 5 to reinstall the line cord and then the line fuse. 6- - 9 TDS7104 & TDS7054 Service Manual...
  • Page 164 4. Reinstallation: To reinstall, align knob to shaft and push it in until it snaps. CAUTION. To prevent damage to the encoders located on the circuit board, apply pressure to the encoders while pushing the knob on the shaft. 6- - 10 TDS7104 & TDS7054 Service Manual...
  • Page 165 Removal and Installation Procedures Figure 6- - 2: Knob removal 6- - 11 TDS7104 & TDS7054 Service Manual...
  • Page 166 Slide the side trim panels towards the rear of the oscilloscope allowing the tabs to clear the cover openings, then pull out to remove the panels from the oscilloscope. 6. Reinstallation: Do in reverse steps 2 through 5 to reinstall the appropriate trim. 6- - 12 TDS7104 & TDS7054 Service Manual...
  • Page 167 To remove the trim ring, slide the flat end of a soldering aid into the side slot on the trim ring. Press in, then lift up to hook it underneath, then pry up. Figure 6- - 3: Trim removal 6- - 13 TDS7104 & TDS7054 Service Manual...
  • Page 168 Remove the bottom cover from the oscilloscope. 3. Reinstallation: Do in reverse steps a and b to reinstall the bottom cover. Bottom cover T-15 Torx screw (4) Figure 6- - 4: Bottom cover removal 6- - 14 TDS7104 & TDS7054 Service Manual...
  • Page 169 CAUTION. Take care not to bind or snag the covers on the oscilloscope internal cabling as you remove or install. 3. Reinstallation: Do in reverse steps a through c to reinstall the cabinet covers. 6- - 15 TDS7104 & TDS7054 Service Manual...
  • Page 170 Removal and Installation Procedures All left and right cover mounting holes are indicated as shown. Left side cover T-15 Torx screw (11) Right side cover Figure 6- - 5: Cover removal 6- - 16 TDS7104 & TDS7054 Service Manual...
  • Page 171 Removal and Installation Procedures Left side cover Right side cover T-15 Torx screw (7) Figure 6- - 6: Cover removal 6- - 17 TDS7104 & TDS7054 Service Manual...
  • Page 172 Top cover trim Left side cover Rear foot Right side cover Front panel trim Right side trim Carrying handle Chassis Front panel cover Bottom cover Acquisition trim Figure 6- - 7: External modules 6- - 18 TDS7104 & TDS7054 Service Manual...
  • Page 173 Acquisition board Front panel board PA bus board Rear Front panel distribution keypad board Front Front panel distribution assembly Power flex circuit board Display module assembly Figure 6- - 8: Internal modules 6- - 19 TDS7104 & TDS7054 Service Manual...

  • Page 174: Procedures For Outer-Chassis Modules

    2. Remove the Front-Panel assembly: See Figure 6- -9, on page 6- -21. 3. Orient the oscilloscope: Set the oscilloscope so its bottom is down on the work surface and its front panel is facing you. 6- - 20 TDS7104 & TDS7054 Service Manual...
  • Page 175 4. Reinstallation: Do in reverse steps a through d to reinstall the front-panel assembly. Floppy disk support tab (2) Chassis slot (2) J1 ribbon cable Front panel assembly Front panel square opening (2) T--15 Torx screw (6) Figure 6- - 9: Front-panel assembly removal 6- - 21 TDS7104 & TDS7054 Service Manual...
  • Page 176 Remove the board from the assembly. 3. Reinstallation: Do in reverse steps a through c to reinstall the front panel board. 6- - 22 TDS7104 & TDS7054 Service Manual...
  • Page 177 T-15 Torx screw (8) Front panel board Keypad support guide (12) Keypad Alignment Pry point stud access hole Pry point access hole Figure 6- - 11: Front panel board and keyboard removal 6- - 23 TDS7104 & TDS7054 Service Manual...
  • Page 178 Disconnect J5 flex cable from the display assembly. Remove the display module assembly from the oscilloscope. See Figure 6- -12, on page 6- -25. 6- - 24 TDS7104 & TDS7054 Service Manual...
  • Page 179 Separate the assembly by carefully prying the Touch panel (outer) assembly from the Display (inner) assembly. Insert a flat-bladed screwdriver in the access notches to push out on the Touch panel assembly. 6- - 25 TDS7104 & TDS7054 Service Manual...
  • Page 180 Remove the three T-15 Torx screws that secure the Display Adapter circuit board to the Display assembly. Remove the Display Adapter from the assembly. 3. Reinstallation: Do in reverse steps a and b to reinstall the board. 6- - 26 TDS7104 & TDS7054 Service Manual...
  • Page 181 T--15 Torx Back view screw (3) Figure 6- - 14: Display adaptor board removal Slide the clip over connector Clip to secure connector as shown Figure 6- - 15: Cable clip removal 6- - 27 TDS7104 & TDS7054 Service Manual...
  • Page 182 Align the holes in the power flex circuit to the two index posts on the front side of the Display assembly. d. Firmly press the flex circuit to the Display assembly chassis surface. 6- - 28 TDS7104 & TDS7054 Service Manual...
  • Page 183 Removal and Installation Procedures Display assembly Power flex circuit Front view Display adaptor board Power flex circuit Back view Figure 6- - 16: Power flex circuit removal 6- - 29 TDS7104 & TDS7054 Service Manual...
  • Page 184 4. Reinstallation: Do in reverse steps a through c to reinstall the floppy disk drive. Ribbon cable Access hole (2) Floppy drive Small Phillips screw (2) Figure 6- - 17: Floppy disk drive removal 6- - 30 TDS7104 & TDS7054 Service Manual...
  • Page 185 Grasp the hard disk drive assembly and slide it out of the oscilloscope. 4. Reinstallation: Do in reverse step 3 to reinstall the hard disk drive assembly. The hard disk drive will push in to lock and push in again to unlock. 6- - 31 TDS7104 & TDS7054 Service Manual...
  • Page 186 Carefully remove the hard disk drive from the cartridge, and remove the cable assembly from the connector on the hard disk drive. Remove 4 screws Figure 6- - 19: Removing the hard disk drive from the cartridge 6- - 32 TDS7104 & TDS7054 Service Manual...
  • Page 187 Remove the Interface board from the CD Drive by pulling the Interface board straight back until they separate. 5. Reinstallation: Do in reverse steps 3 and 4 to reinstall the CD Drive assembly. 6- - 33 TDS7104 & TDS7054 Service Manual...
  • Page 188 2. Orient the oscilloscope: Set the oscilloscope so its bottom is down on the work surface and its left side is facing you. 3. Remove the fan: See Figure 6- -21, on page 6- -35. 6- - 34 TDS7104 & TDS7054 Service Manual...
  • Page 189 4. Reinstallation: Do in reverse steps a through c to reinstall the fan assembly. CAUTION. Take care when handling the fan assembly, the fan blades are brittle and can be easily damaged. Disconnect from J130 Disconnect from J170 Figure 6- - 21: Fan assembly removal 6- - 35 TDS7104 & TDS7054 Service Manual...
  • Page 190 J930 Processor board and J100 Acquisition board. 4. Reinstallation: Do in reverse step 3 to reinstall the front and rear power distribution and the PA bus interconnect boards. 6- - 36 TDS7104 & TDS7054 Service Manual...
  • Page 191 Remove the two T-15 Torx screws securing the low-voltage power supply to the right-side chassis support. b. Remove the three T-15 Torx screws securing the low-voltage power supply to rear chassis. 6- - 37 TDS7104 & TDS7054 Service Manual...
  • Page 192 4. Reinstallation: Do in reverse steps a through c to reinstall the low-voltage power supply. T--15 Torx screw (3) Low--voltage power supply T--15 Torx screw (2) Figure 6- - 23: Low-voltage power supply removal 6- - 38 TDS7104 & TDS7054 Service Manual...
  • Page 193 Lift the edge of the battery opposite the hold-down spring and slide the battery out of its holder (see Figure 6- -24). NLX battery NLX battery Hold--down spring Battery edge access notch NLX board NLX battery Figure 6- - 24: NLX battery removal 6- - 39 TDS7104 & TDS7054 Service Manual...
  • Page 194 If the software suggests that you update your BIOS, let the software update the BIOS. f. To install the correct CMOS settings, select either Enable Networking or Disable Networking. The instrument will boot faster with networking disabled. 6- - 40 TDS7104 & TDS7054 Service Manual...
  • Page 195 Grasp the front edge of the NLX board assembly and pull up on the assembly to disconnect the Riser Adapter from the Processor board edge connector. g. Remove the NLX board assembly from the oscilloscope. 6- - 41 TDS7104 & TDS7054 Service Manual...
  • Page 196 Remove the two T-15 Torx screws that secure Riser Adapter board to the NLX support bracket. b. Disconnect the ribbon cable connectors from the floppy drive, hard drive and CD drive. c. Remove the floppy drive assembly from the NLX board assembly. 6- - 42 TDS7104 & TDS7054 Service Manual...
  • Page 197 Then remove the NLX board from the support bracket. g. Remove the NLX board from the support bracket. 5. Reinstallation: Do in reverse steps 3 and 4 to reinstall the NLX board. 6- - 43 TDS7104 & TDS7054 Service Manual...
  • Page 198 NLX board cable cable connector Riser adapter board T--15 Torx screw (2) CD drive cable connector J510 Nut post (6) NLX support bracket Figure 6- - 26: Riser adapter and NLX board removal 6- - 44 TDS7104 & TDS7054 Service Manual...
  • Page 199 Set the remaining edge of the fan/heatsink down on the microprocessor and fasten the remaining bracket to the assembly. f. Connect the fan power cable J401 to the NLX board. 6- - 45 TDS7104 & TDS7054 Service Manual...
  • Page 200 Push down J401 power cable and pull out to release clamp NLX board Figure 6- - 27: Microprocessor removal PPC Battery 1. This battery must be replaced by a Tektronix Service Center 6- - 46 TDS7104 & TDS7054 Service Manual...
  • Page 201 PPC Processor Board 1. Locate module to be removed: Replacement of this board must be performed by a Tektronix Service Center. Locate the PPC (Power PC) processor board assembly in the locator diagram Internal Modules, Figure 6- -8, on page 6- -19.
  • Page 202 J691 J690 T--15 Torx screw (9) Phillips screw (2) PPC Processor board Support bracket 3/16 Nut post (2) 5/16 Nut post (2) Chassis support Figure 6- - 28: PPC Processor board removal 6- - 48 TDS7104 & TDS7054 Service Manual...
  • Page 203 Remove the six T-15 Torx screws securing the Acquisition assembly to the chassis. d. Slide the Acquisition board toward the rear of the oscilloscope. Then lift the board out of the oscilloscope. 6- - 49 TDS7104 & TDS7054 Service Manual...
  • Page 204 Removal and Installation Procedures T--15 Torx screw (6) Acquisition circuit board Gasket Coaxial Flex circuit cables (2) T--15 Torx screw (6) Figure 6- - 29: Acquisition circuit board removal 6- - 50 TDS7104 & TDS7054 Service Manual...

  • Page 205: Troubleshooting

    PC troubleshooting and Windows 98 skills. Details of PC and Windows 98 operation and service are not in this manual. For assistance, contact your local Tektronix Service Center. Service Level This subsection contains information and procedures designed to help you isolate faulty modules in the oscilloscope.
  • Page 206 H Defective backlighting display lamp H Faulty display H Faulty controller board H Faulty inverter board H Faulty display adapter board H Refer to the BIOS error message table on page 6--63 BIOS error messages 6- - 52 TDS7104 & TDS7054 Service Manual...

  • Page 207: Equipment Required

    Adjustment Procedures in this manual. Fault Isolation Procedure Follow the primary troubleshooting tree in Figure 6- -30 for fault isolation. This tree calls for you to run the diagnostics programs, and check for BIOS errors. 6- - 53 TDS7104 & TDS7054 Service Manual...
  • Page 208 2 External monitor controls turned down 3 Defective monitor BIOS error See BIOS error message? code, Table 6--8 on page 6--63 Figure 6- - 30: Primary troubleshooting tree 6- - 54 TDS7104 & TDS7054 Service Manual...
  • Page 209 (see Figure 6- -32). The PPC board and the rear power distribution board are required for power to come up. If removing the boards did not find the problem, replace the power supply. 6- - 55 TDS7104 & TDS7054 Service Manual...

  • Page 210: Table 6- -5: Power Supply Voltages

    +12 V Pins A/B/C17, 18, 20, 21, 22 --5 V Pins B/C3 (fan voltage) +9.8 V Pin A5 +3.3 V Pins A/B/C24, 25, 27, 28, 30, 31 +5 V Pin A57 +5 V 6- - 56 TDS7104 & TDS7054 Service Manual...
  • Page 211 NLX Board CMOS on page 6- -73). If booting starts, finds the hard disk, but hangs displaying the Windows splash screen: 1. Select the AGP video port using the setup menu. 6- - 57 TDS7104 & TDS7054 Service Manual...

  • Page 212: Ppc And Nlx Pc Diagnostics

    If any failures occur at power on, the screen displays the calibration and diagnostics property page. Table 6- -6 lists a subset of the power on tests. Use the results of the tests to help you isolate problems to system modules. 6- - 58 TDS7104 & TDS7054 Service Manual...
  • Page 213 ADG VXI Addr Test ADG VXI Data Test System Interrupt Lines Trigger Lines Processor Memory 111 DRAMWalk1 112 DRAMCell 113 DRAMMarch 114 NVRAM PCI Bus 121 Scan Test Registers 131 PAI Display Registers 211 Display 6- - 59 TDS7104 & TDS7054 Service Manual...
  • Page 214 441 Atten 442 Preamp 443 DTC 444 ExtendedTrg 445 Dacs 451 Ch1Edge 452 AfterDBE 453 AfterDBT 454 Slewrate 455 LineTrig 456 BTL Extended 461 Glitch 462 PulseWidth 463 OptionST_ok Nibble 471 Bus 6- - 60 TDS7104 & TDS7054 Service Manual...
  • Page 215 Display the Task Manager by pressing CTRL, ALT, and Delete. f. Select Servercontrol, if displayed, and then touch End TAsk. g. Display the Task Manager by pressing CTRL, ALT, and Delete. h. Select Vxi11servercontrol, if displayed and then touch End TAsk. 6- - 61 TDS7104 & TDS7054 Service Manual...

  • Page 216: Firmware Updates

    Firmware updates are easy to do. Simply install the firmware CD in your oscilloscope and follow the displayed instructions or the instructions that accompany the CD. If you want to order a firmware update, contact your Tektronix service center. 6- - 62 TDS7104 & TDS7054 Service Manual...

  • Page 217: After Repair

    None Interconnect boards None Fans None Replacement of this board must be performed by Tektronix. BIOS Error Messages (Bali NLX) Table 6- -8 lists error messages displayed by the BIOS. Table 6- - 8: BIOS Error messages Error message Explanation...

  • Page 218: Bios Error Messages (Radisys Nlx)

    Once the display is enabled, errors are written to the display as text messages. These messages are always displayed unless the board is configured for silent boot or headless (no keyboard, mouse, or display) operation. 6- - 64 TDS7104 & TDS7054 Service Manual...
  • Page 219 Fix up MP table Test high byte of 512 Kb base memory Search for option ROMs (beep for bad checksum) Test CPU bus-clock frequency Check for SMART HDD Initialize PDM Shadow option ROMs 6- - 65 TDS7104 & TDS7054 Service Manual...
  • Page 220 CPU cache off Dual CMOS Test RAM between 512 Kb and 640 Kb Docking initialization Base address Late docking initialization Test extended memory Interrupt handler error Test extended memory address lines Unknown interrupt error 6- - 66 TDS7104 & TDS7054 Service Manual...

  • Page 221: Bios Beep Codes (Bali Nlx)

    Table 6- - 10: Beep codes (Bali) Beeps Description Refresh failure Parity cannot be reset First 64 K memory failure Timer not operational Processor failure (not used) 8042 Gate A20 cannot be toggled Exception interrupt error 6- - 67 TDS7104 & TDS7054 Service Manual...

  • Page 222: Bios Beep Codes (Radisys Nlx)

    This is the default switch position. A switch set to OFF is open and presents a high state (3.3 V) to the switch buffer. This is the ‘set’ position. Table 6- -12 describes the switch functions. 6- - 68 TDS7104 & TDS7054 Service Manual...

  • Page 223: Diagnostic Led

    LED is not active. RESET forces the display to .8. H, L, P, and a blinking - - indicate where the program is in the power-up sequence. As tests occur, the associated number is displayed on the LED. A failing test displays a decimal point and the test number. 6- - 69 TDS7104 & TDS7054 Service Manual...
  • Page 224 Walk a one through NVRAM memory location. Cache is disabled. Walk a one through bus XPC_ISA_D. POST passed Boot parameters loaded and Program has loaded boot parameters and is waiting to connect waiting for host to host. 6- - 70 TDS7104 & TDS7054 Service Manual...

  • Page 225: Troubleshooting Using Reset Circuits

    Installing J841 removes the C&T69000 from the Windows side. Note, neither the PPC ECB VGA port or the LCD will function if J841 is installed. Use the NLX SVGA port (see Figure 6- -35). 6- - 71 TDS7104 & TDS7054 Service Manual...
  • Page 226 Troubleshooting NOTE. The C&T69000 video adapter located on the Tektronix PPC board is the primary video adapter. A second video adapter, the RAGE 2C, is located on the NLX board. The RAGE is an AGP video adapter and the C&T69000 is a PCI bus video adapter.

  • Page 227: Update/Restore The Nlx Board Cmos

    If the CMOS parameters become corrupted, restore the CMOS memory using one of the following procedures: CAUTION. Only install CMOS parameters from Tektronix. CMOS parameters from other manufactures may make your oscilloscope inoperable. If you cannot restore the CMOS memory, replace the battery.

  • Page 228: Installing An Authorization Key

    Install the authorization key using the following procedure: 1. From the oscilloscope menu bar, touch the Utilities menu, select Option Installation, and then touch Continue. 2. Enter the new key using an attached keyboard. 6- - 74 TDS7104 & TDS7054 Service Manual...

  • Page 229: Hard Disk Drive Maintenance

    Utilities Format command. Format will destroy all data currently on the disk. 5. If reformatting the hard disk and reloading the software will not repair the disk, install a new hard disk drive. 6- - 75 TDS7104 & TDS7054 Service Manual...
  • Page 230 Troubleshooting 6- - 76 TDS7104 & TDS7054 Service Manual...

  • Page 231: Repackaging Instructions

    H Type and serial number of the oscilloscope. H Reason for returning. H A complete description of the service required. Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations. 6- 77...
  • Page 232 Repackaging Instructions 6- 78 TDS7104 & TDS7054 Service Manual...

  • Page 233: Options

    H Option ST: Serial Pattern Triggering H Option TDS7UP: Field upgrade options. Many are available. Contact Tektronix (see page xvii) for a complete list of available TDS7UP options H Option J1: TDSJIT2 Jitter Analysis application H Option J2: TDSDDM2 Disk Drive Measurements application...

  • Page 234: Accessories

    Optional Applications Software CD and Documentation Kit 020-2450-xx Oscilloscope Analysis and Connectivity Made Easy Kit 020-2449- - xx Option SM and ST User Manual 071-1035-xx Performance Verification (a pdf file on the TDS7000 Series Product —— Software CD) 7- 2 TDS7104 & TDS7054 Service Manual...
  • Page 235 Click’N Burn Software CD 063-3575-xx Optional The accessories in Table 7- -2 are orderable for use with the oscilloscope at the time this manual was originally published. Consult a current Tektronix catalog for additions, changes, and details. Table 7- 2: Optional accessories Accessory...
  • Page 236 PS-2 keyboard 118-9402-00 USB Keyboard 119-6633-xx Centronics cable 012-1214-xx Replacement hard disk 650-0654-xx AFTDS Telecomm differential electrical interface adapter (for line rates AFTDS <8 Mb/s) TDSUSBF USB test fixture; used with Option USB TDSUBF 7- 4 TDS7104 & TDS7054 Service Manual...

  • Page 237: Electrical Parts List 8

    The modules that make up this instrument are often a combination of mechanical and electrical subparts. Therefore, all replaceable modules are listed in Section 10, Mechanical Parts List. Refer to that section for part numbers when using this manual. 8- 1 TDS7104 & TDS7054 Service Manual...
  • Page 238 Electrical Parts List 8- 2 TDS7104 & TDS7054 Service Manual...

  • Page 239: Diagrams 9

    The tilde (~) preceding a signal name indicates that the signal performs its intended function when in the low state. Other standards used in the preparation of diagrams by Tektronix, Inc. are: H Tektronix Standard 062- -2476 Symbols and Practices for Schematic Drafting H ANSI Y14.159- -1971 Interconnection Diagrams...
  • Page 240 Front RS232 (TTY0 (Diags) panel Cal adjust lock Fans Power LVPS board (rear) Power J100 Acquisition (front) board Aux Out Sig Out Probe Comp Aux In Figure 9- 1: TDS7000 series block diagram 9- 2 TDS7104 & TDS7054 Service Manual...

  • Page 241: Parts Ordering Information

    This section contains a list of the replaceable modules for the oscilloscope. 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 instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements.

  • Page 242: Using The Replaceable Parts List

    Figure & Index Number Items in this section are referenced by component number. 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 243 TOKYO, JP 108 7- - 1, SHIBA 5 CHOME MINATO- - KU TK0588 UNIVERSAL PRECISION PRODUCT 1775 NW CORNELIUS PASS RD HILLSBORO, OR 97124 TK1943 NEILSEN MANUFACTURING INC 3501 PORTLAND RD NE SALEM, OR 97303 10- 3 TDS7104 & TDS7054 Service Manual...
  • Page 244 MULTI- - FINELINE ELECTRONIX INC (MFLEX) DBA: MFLEX ANAHEIM, CA 92806 1301 N DYNAMICS STREET TK6181 IMC PLASTICS INC 19400 SW TETON AVE TUALATIN, OR 97062 TK6253 VOLEX INTERCONNECT INC 646 CARRIBEAN DR SUNNYVALE, CA 94089- - 1108 10- 4 TDS7104 & TDS7054 Service Manual...
  • Page 245 - - 23 200- - 4521- - 00 COVER,LEFT:PCABS,13.654L X 8.250W,BLUE TK6181 200- - 4521- - 00 - - 24 200- - 4520- - 00 COVER,TOP:PCABS,17.200L X 13.550W,BLUE TK6181 200- - 4520- - 00 10- 5 TDS7104 & TDS7054 Service Manual...
  • Page 246 Mechanical Parts List Figure 10- 1: External parts 10- 6 TDS7104 & TDS7054 Service Manual...
  • Page 247 CKT BD SUBASSY:CONNECTOR CONVERSION 80009 679- - 4379- - 00 - - 35 174- - 4321- - 00 CA ASSY:FLAT FLEX,26POS,10.440L (HARD DRIVE) 060D9 174- - 4321- - 00 This part must be replaced by Tektronix. 10- 7 TDS7104 & TDS7054 Service Manual...
  • Page 248 Mechanical Parts List Figure 10- 2: Front panel and drives 10- 8 TDS7104 & TDS7054 Service Manual...
  • Page 249 174- - 4231- - 00 CABLE ASSY:CABLE ASSEMBY (CD- - ROM) 060D9 174- - 4231- - 00 - - 22 671- - 4377- - 00 CIRCUIT BD ASSY:CD ROM INTERFACE 80009 671- - 4377- - 00 10- 9 TDS7104 & TDS7054 Service Manual...
  • Page 250 156- - 4828- - 00 B010100 B039999 IC,MEMORY:CMOS,SDRAM,16MEG X 64, SYNC, S5769 MC-4516CD646-A10 UNBUFFERED,3.3V,MC- - 4516CD646- - A10,DIMM168 156- - 9074- - 00 B040100 IC,MEMORY; CMOS,DRAM;32MEG X 64,256MEG, 6Y440 MT16LSDT3264AG- - SDRAM,PC100;MT16LSDT3264AG- - 10E,DIMM168 10EB1 10- 10 TDS7104 & TDS7054 Service Manual...
  • Page 251 Mechanical Parts List Figure 10- 3: Power supply 10- 11 TDS7104 & TDS7054 Service Manual...
  • Page 252 FLEX CIRCUIT:LEVEL II PROBE INTERFACE TK6173 259- - 0157- - 00 - - 5 131- - 1315- - 01 CONN,RF JACK:BNC/PNL,50 OHM PELTOLA/REAR PNL, 24931 28JR306- - 1 WITH HARDWARE Figure 10- 4: Acquisition assembly 10- 12 TDS7104 & TDS7054 Service Manual...
  • Page 253 CONNETIVITY MADE EASY MANUAL W/SW 063- - 3376- - 09 SOFTWARE PKG:PRODUCT SOFTWARE,V2.3.2,CD TK2548 063- - 3376- - 09 OPTIONAL ACCESSORIES 119- - 6633- - 00 KEYBOARD:USB KEYBOARD CHERR 01963 G81- - 3505- - LAAUS 10- 13 TDS7104 & TDS7054 Service Manual...
  • Page 254 Name & description Mfr. part number 071- - 0711- - 02 MANUAL,TECH:SERVICE TDS7000 TK2548 071- - 0711- - 02 016- - 1790- - 04 Kit:RACKMOUNT (OPTION 1R) 80009 016- - 1790- - 04 10- 14 TDS7104 & TDS7054 Service Manual...

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