Page 1 Service Manual TDS5000 Series Digital Phosphor Oscilloscopes 071-1004-02 This document applies to firmware version 1.00 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 TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Page 3 WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (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 4 www.valuetronics.com...
Page 5 ......... 2- - 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 6: Table Of Contents
Sine Wave Generator Leveling Procedure ......4- - 60 TDS5000 Series Service Manual www.valuetronics.com...
Page 7: Adjustment Procedures
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Page 8 Mfr. Code to Manufacturer Cross Index ......10- - 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 9: List Of Figures
......4- -56 Figure 4- -26: Measurement of probe compensator frequency ..4- -57 TDS5000 Series Service Manual www.valuetronics.com...
Page 10 ....6- -57 Figure 9- -1: TDS5000 series block diagram .....
Page 11 ........10- -15 TDS5000 Series Service Manual www.valuetronics.com...
Page 12: List Of Tables
Table 7- -4: Optional accessories ......7- -4 viii TDS5000 Series Service Manual www.valuetronics.com...
Page 13: General Safety Summary
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. Symbols and Terms Terms in this Manual. These terms may appear in this manual: TDS5000 Series Service Manual www.valuetronics.com...
Page 14 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: CAUTION WARNING Protective Ground Refer to Manual High Voltage (Earth) Terminal TDS5000 Series Service Manual www.valuetronics.com...
Page 15: Service Safety Summary
Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. TDS5000 Series Service Manual www.valuetronics.com...
Page 16 Service Safety Summary TDS5000 Series Service Manual www.valuetronics.com...
Page 17: Manual Structure
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. xiii TDS5000 Series Service Manual www.valuetronics.com...
Page 18: Related Documentation
The oscilloscope is shipped with the following manuals: H TDS5000 User manual. Tektronix part number 071-0876-XX. H TDS5000 Reference manual. Tektronix part number 020-2398-XX. H TDS5000 Series Rackmount Kit (Option 1R) Instructions. Tektronix part number 071-0971-XX. TDS5000 Series Service Manual...
Page 19: Contacting Tektronix
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. TDS5000 Series Service Manual...
Page 20 Preface TDS5000 Series Service Manual www.valuetronics.com...
Page 21: Specifications
Specifications This chapter contains the specifications for the TDS5000 series Digital Phosphor Oscilloscopes. All specifications are guaranteed unless labeled “typical”. Typical specifications are provided for your convenience but are not guaranteed. Specifications that are marked with the n symbol are checked in chapter four, Performance Verification.
Page 22 Spectral Analysis. (Optional) Display spectral magnitude and phase waveforms based on your time-domain acquisitions. Control the oscilloscope using the traditional spectrum analyzer controls such as span and center frequency. 1- 2 TDS5000 Series Service Manual www.valuetronics.com...
Page 23: Display Features
Touch Screen Interface. (Optional) You can operate all oscilloscope functions (except the power switch) from the touch screen interface. You can also install a mouse and keyboard to use the interface. 1- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 24: Specification Tables
1 MΩ ± 1.0% in parallel with 18 pF ±2 pF 50 Ω ±2.5% VSWR: TDS5052 and TDS5054: ≤1.6:1 typical from DC to 500 MHz TDS5104 ≤ 1.5:1 typical from DC to 1 GHz 1- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 25 Selectable between 20 MHz, 150 MHz, or Full Lower frequency limit, AC coupled < 10 Hz for 1 MΩ, reduced by a factor of ten when using a 10X probe; <200 kHz for 50 Ω 1- 5 TDS5000 Series Service Manual www.valuetronics.com...
Page 26 ≤ 20 V step 100 ns: ≤ 0.5% 20 ms: ≤ 0.2% 1.01 V/div to 10 V/div, 20 ns: ≤ 1.0% with ≤ 200 V step 100 ns: ≤ 0.5% 20 ms: ≤ 0.2% 1- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 27 150 mV + (0.1 div ×V/div setting] At temperatures above 40 °C, ±[(0.75% ×| net offset |) + 150 mV + (0.1 div ×V/div setting)] Offset accuracy where, net offset = offset - - ( position × volts/division) 1- 7 TDS5000 Series Service Manual www.valuetronics.com...
Page 28 3.98 mV/div ±[1.5% + 3.0% × |net offset /offset range|× |reading - - net offset| + 0.26 div ×V/div setting + 1.2 mV] where, net offset = offset - - ( position × volts/division) 1- 8 TDS5000 Series Service Manual www.valuetronics.com...
Page 29 |reading - - net offset| + 0.1 div × V/div + 0.3 mV] where, net offset = offset - - ( position × volts/division) Nonlinearity, typical < 1 LSB differential, < 1 LSB integral, independently based 1- 9 TDS5000 Series Service Manual www.valuetronics.com...
Page 30 6.6 bits sample rate, Sample acquisition mode 1 MHz, 9.2 div, 10 MS/s 9.0 bits sample rate, HiRes acquisi- tion mode 1 GHz, 6.5 div, 5 GS/s 4.7 bits sample rate, Sample acquisition mode 1- 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 31: Table 1- 3: Horizontal And Acquisition System Specifications
16 ns to 250 s n Long term sample rate and ±15 ppm over any ≥ 1 ms interval delay time accuracy RMS aperture uncertainty, typical ≤ [3 ps + (0.1 ppm × record duration)] 1- 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 32 ± (15 ppm × | reading | + or Hi Res acquisition mode, 0.3 sample intervals) Full bandwidth Average acquisition mode, ± (15 ppm × | reading | + ≥100 averages, Full band- 20 ps) width 1- 12 TDS5000 Series Service Manual www.valuetronics.com...
Page 33: Table 1- 4: Trigger Specifications
1.0 div, from DC to 500 MHz Event count sensitivity, typical For sequential trigger delayed by events, with vertical scale settings ≥10 mV/div and ≤1 V/div 1.0 div, from DC to 500 MHz 1- 13 TDS5000 Series Service Manual www.valuetronics.com...
Page 34 B trigger event and the first B trigger (B Event), typical event event Minimum pulse width, — B event width ≥1 ns typical Maximum frequency, typical — B event frequency ≤500 MHz 1- 14 TDS5000 Series Service Manual www.valuetronics.com...
Page 35 +2 ns minimum (algebraic sum of the two +202 ns maximum settings) Advanced trigger timer ranges Limits Glitch type 1 ns to 1 s Runt or window type, wider 1 ns to 1 s than 1- 15 TDS5000 Series Service Manual www.valuetronics.com...
Page 36: Table 1- 5: Display Specifications
0.33 mm horizontal, 0.33 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- or 24-bit) 1- 16 TDS5000 Series Service Manual www.valuetronics.com...
Page 37: Table 1- 6: Input/Output Port Specifications
Auxiliary Output pulse width, typical Pulse width varies, 1 s minimum External Reference Input Rear-panel BNC connector 9.8 MHz to 10.2 MHz 200 mV p-p to 7 V p-p >1.5 kΩ in series with ~10 nF DC blocking capacitor 1- 17 TDS5000 Series Service Manual www.valuetronics.com...
Page 38: Table 1- 7: Data Storage Specifications
Table 1- 7: Data storage specifications Characteristic Description CD-ROM Side-panel CD-ROM drive, read only. CD R/W optional Floppy disk Front-panel 3.5 in floppy disk drive, 1.44 MB capacity Hard disk Internal hard disk drive, ≥ 10 GB capacity 1- 18 TDS5000 Series Service Manual www.valuetronics.com...
Page 39: Table 1- 8: Power Source 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 40: Table 1- 10: Environmental Specifications
5 Hz to 500 Hz, 10 minutes on each axis Nonoperating 2.28 g from 5 Hz to 500 Hz, 10 minutes on each axis Shock, nonoperating 30 g (11 ms half-sine wave or less) 1- 20 TDS5000 Series Service Manual www.valuetronics.com...
Page 41: 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 42 Equipment Type Test and measuring Safety Class Class 1 (as defined in IEC 61010-1/A2) - - grounded product Pollution Degree Pollution Degree 2 (as defined in IEC 61010-1/A2). Note: Rated for indoor use only. 1- 22 TDS5000 Series Service Manual www.valuetronics.com...
Page 43: 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- -19 and 1- -20 list the operating requirements for the oscilloscope. Power source, temperature, humidity, and altitude are listed. 2- 1 TDS5000 Series Service Manual www.valuetronics.com...
Page 44: Table 2- 1: Additional Accessory Connection Information
If your mouse locks up, disconnect and reconnect the USB connector to restore normal operation. If the oscilloscope front panel and/or touch screen do not respond, press the On/Standby switch for at least 5 seconds to cycle power. 2- 2 TDS5000 Series Service Manual www.valuetronics.com...
Page 45: Figure 2- 1: Locations Of Peripheral Connectors On The Side Panel
Audio line in ....GPIB ..Oscilloscope monitor (large-screen oscilloscope display). . . Figure 2- 1: Locations of peripheral connectors on the side panel 2- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 46: Figure 2- 2: On/Standby Switch Location
Windows installation without rebuilding the entire instrument hard disk. The emergency startup disk contains basic files to restart your instrument. It also contains files to check and format the hard disk. 2- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 47: 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- 5 TDS5000 Series Service Manual www.valuetronics.com...
Page 48 Use the online help for informa- tion on using the Backup tool. You can back up to the floppy drive, or to a third-party storage device over the printer port (side panel). 2- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 49: Figure 2- 3: User Interface
Controls Status: Quick reference to graticule area vertical, horizontal, and trigger selections, scale, and parameters Figure 2- 3: User interface 2- 7 TDS5000 Series Service Manual www.valuetronics.com...
Page 50: Figure 2- 5: Locations Of Connectors On The Rear Panel
Figure 2- -5 shows the input/output connectors on the rear panel. Rear panel EXT REF AUX OUT SIGNAL OUT scale and offset controlled by CH3 controls Figure 2- 5: Locations of connectors on the rear panel 2- 8 TDS5000 Series Service Manual www.valuetronics.com...
Page 51: Figure 2- 6: Front Panel Controls
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. Figure 2- 6: Front panel controls 2- 9 TDS5000 Series Service Manual www.valuetronics.com...
Page 52: Instrument Diagnostics
3. Touch the Calibrate button to start the routine. 4. Wait for the test to complete (the test may take several minutes to complete). 5. Verify that the word Pass appears under the Status label in the control window. 2- 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 53 (with the label Restore Help). Touch the Restore Help button to restore the help window to its normal size. 2- 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 54 Operating Information 2- 12 TDS5000 Series Service Manual www.valuetronics.com...
Page 55: Theory Of Operation
Tekprobe Level 2 interface for additional front-end signal conditioning functions like high input-impedance real-time probes. Processor System. The processor system uses a microprocessor that controls the acquisition system of the oscilloscope. The basic configuration supports two or 3- 1 TDS5000 Series Service Manual www.valuetronics.com...
Page 56: Display Panel
The PC Interface board provides a GPIB interface through a side panel connec- tor. PC Motherboard. The PC motherboard provides standard Windows functionality and I/O port interfaces to the rear panel. 3- 2 TDS5000 Series Service Manual www.valuetronics.com...
Page 57: Side Panels
The fan assembly provides forced air cooling for the oscilloscope. The fans are controlled by the microprocessor. Printer The optional internal thermal printer allows for quick hard copies of the screen display. The printer receives power and USB signals from the PC Interface board. 3- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 58 Theory of Operation 3- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 59: Performance Verification
(See Table 4- -1: Test equipment on page 4- -18). If you are not familiar with operating this oscilloscope, read the oscilloscope reference or user manuals or explore the online help. 4- 1 TDS5000 Series Service Manual www.valuetronics.com...
Page 60: 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 61: 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 optional touch screen to operate all the screen controls. 4- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 62 Performance Verification 4- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 63: Brief Procedures
Verify that no failures are found and reported on-screen. All tests should pass. If any failures occur, use the “DIAG:RESULTS:VERBOSE?” query for details on the errors. 4- 5 TDS5000 Series Service Manual www.valuetronics.com...
Page 64: Functional Tests
When you are instructed to press a front-panel or screen button, the button may already be selected (its label will be highlighted). If this is the case, it is not necessary to press the button. 4- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 65: Verify All Input Channels
Brief Procedures Verify All Input Channels One 10X oscilloscope probe, such as Tektronix P5050 Equipment required None Prerequisites 1. Initialize the oscilloscope: Push the front-panel DEFAULT SETUP button. 2. Hook up the signal source: Connect the probe to the probe compensation connector and the channel input that you want to test (beginning with CH 1) as shown in Figure 4- -2.
Page 66 8. Test all channels: Repeat steps 2 through 7 until all input channels are verified. 9. Remove the test hookup: Disconnect the probe from the channel input and the probe compensation output. 4- 8 TDS5000 Series Service Manual www.valuetronics.com...
Page 67: Verify The Time Base
Brief Procedures Verify the Time Base One 10X oscilloscope probe, such as Tektronix P5050 Equipment required None Prerequisites 1. Initialize the oscilloscope:Push the front-panel DEFAULT SETUP button. 2. Hook up the signal source: Connect the probe to the probe compensation output and to the CH 1 input as shown in Figure 4- -4.
Page 68 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 probe from the channel input and the probe compensation output. 4- 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 69: Verify The A (Main) And B (Delayed) Trigger Systems
Brief Procedures Verify the A (Main) and B One 10X oscilloscope probe, such as Tektronix P5050 Equipment (Delayed) Trigger Systems required None Prerequisites 1. Initialize the oscilloscope: Push the front-panel DEFAULT SETUP button. 2. Hook up the signal source: Connect the probe to the probe compensation output and to the CH 1 input as shown in Figure 4- -5.
Page 70 6. Remove the test hookup: Disconnect the probe from the channel input and the probe compensation output. Verify the File System One 10X oscilloscope probe, such as Tektronix P5050 Equipment required One 720 K or 1.44 Mbyte, 3.5 inch DOS-compatible formatted disk.
Page 71: Verify The File System
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- 13 TDS5000 Series Service Manual www.valuetronics.com...
Page 72: Verify The Internal Printer (Optional)
5. Click Print Test Page. 6. Verify that the test page advances through the printer and prints clearly. Refer to Figure 4- -7 on page 4- -15 for a sample of the test page. 4- 14 TDS5000 Series Service Manual www.valuetronics.com...
Page 73: Figure 4- 7: Test Page From The Internal Printer
Brief Procedures Figure 4- 7: Test page from the internal printer 4- 15 TDS5000 Series Service Manual www.valuetronics.com...
Page 74 Brief Procedures 4- 16 TDS5000 Series Service Manual www.valuetronics.com...
Page 75: Performance Tests
Performance Tests This section contains a collection of manual procedures for checking that the TDS5000 Series Oscilloscopes perform as warranted. The preceding procedures are faster to complete, and should be done first if you intend to perform the performance tests.
Page 76: Equipment Required
50 Ω. Frequency error Delay-Time Accuracy >2.0% 15. Meter, Level and Power Frequency range: 10 MHz to the Wavetek 9500 Checking Analog Bandwidth Sensor oscilloscope bandwidth. Amplitude and Trigger Sensitivity range: 6 mV to 2 V 4- 18 TDS5000 Series Service Manual www.valuetronics.com...
Page 77 ±8 V, or errors in signal measurement will be observed. Above 40 V, damage to the probe may result. To make measurements beyond ±8 V, use either the P5050 probe (good to 500 V), or refer to the catalog for a recom- mended probe. 4- 19 TDS5000 Series Service Manual www.valuetronics.com...
Page 78: Tds5000 Test Record
- - 1.0353 V +5 Div position setting, - - 1 V offset 200 mV Vert scale setting, + 11.4989 V __________ __________ + 11.7011 V - - 5 Div position setting, +10 V offset 4- 20 TDS5000 Series Service Manual www.valuetronics.com...
Page 79 CH 3 __________ __________ 0.16 divisions CH 4 __________ 0.16 divisions Time base system Long term sample rate and delay time accuracy @ 100 ns/10.0 ms - - 1.5 divisions __________ __________ +1.5 divisions 4- 21 TDS5000 Series Service Manual www.valuetronics.com...
Page 80 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- 22 TDS5000 Series Service Manual www.valuetronics.com...
Page 81: Signal Acquisition System Checks
H Connect the Sense output of the generator through a second dual-banana 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- -8. 4- 23 TDS5000 Series Service Manual www.valuetronics.com...
Page 82: Figure 4- 8: Initial Test Hookup
Turn on the measurement Mean for the channel: H From the tool bar, click MEAS and select the Ampl tab, and then click Mean to measure the mean of the current channel. H Press Close. 4- 24 TDS5000 Series Service Manual www.valuetronics.com...
Page 83: Table 4- 2: Dc Voltage Measurement Accuracy
DC accuracy check has failed for the current vertical scale setting of the current channel). e. Measure the test signal: Press Close. Read the measurement results at the Mean measurement readout. See Figure 4- -9. 4- 25 TDS5000 Series Service Manual www.valuetronics.com...
Page 84: Figure 4- 9: Measurement Of Dc Accuracy At Maximum Offset And Position
Test all channels: Repeat substeps a through f for all 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- 26 TDS5000 Series Service Manual www.valuetronics.com...
Page 85: Check Analog Bandwidth
0.35 db of the reference frequency (10 MHz) through the bandwidth frequency listed in Table 4- -3 on page 4- -29. The 0.35 db requirement is necessary to ensure a bandwidth that meets Tektronix specifications. You can perform bandwidth Performance Verification using an unleveled sine wave generator (with amplitude error <...
Page 86: Figure 4- 10: Initial Test Hookup
For the optional setup using a leveled sine wave generator with a leveling head, see Figure 4- -11 and, if using this optional setup with the example Tektronix SG504, set the generator output to 6 MHz. TDS5000 oscilloscope Sine Wave...
Page 87: Table 4- 3: Analog Bandwidth
Test frequency, and use this for the reference amplitude. The - 3 db limit can be calculated as: 0.707 × reference amplitude. Display the test signal: Do the following subparts to first display the reference signal and then the test signal. 4- 29 TDS5000 Series Service Manual www.valuetronics.com...
Page 88: Figure 4- 12: Measurement Of Analog Bandwidth
See Figure 4- -12. Set the generator (reference) frequency to the test frequency from Table 4- - 3. Read results. Set the horizontal scale from Table 4- - 3. Figure 4- 12: Measurement of analog bandwidth 4- 30 TDS5000 Series Service Manual www.valuetronics.com...
Page 89 Test all channels: Repeat substeps a through h for all channels. 3. Disconnect the hookup: Disconnect the test hook up from the input connector of the channel last tested. 4- 31 TDS5000 Series Service Manual www.valuetronics.com...
Page 90: Check Delay Between Channels
Termination 50 Ω button. H Set the horizontal SCALE to 400 ps. H From the tool bar, click Horiz and select the Acquisition tab. H Click Average and set the number of averages to 16. 4- 32 TDS5000 Series Service Manual www.valuetronics.com...
Page 91: Figure 4- 13: Initial Test Hookup
CH 1. Hint: As you are adjusting the generator amplitude, push PUSH TO SET 50% frequently to speed up the updating of the waveform amplitude on the screen. 4- 33 TDS5000 Series Service Manual www.valuetronics.com...
Page 92 (if necessary, press the FINE buttons). See Figure 4- -14 on page 4- -35. H Read the measurement results at the ∆: cursor readout on the screen. 4- 34 TDS5000 Series Service Manual www.valuetronics.com...
Page 93: Figure 4- 14: Measurement Of Channel Delay
Check against limits: CHECK that the cursor readout on the screen is ≤100 ps. h. Enter the time on the test record. 3. Disconnect the hookup: Disconnect the coupler or cables from the input connectors of the channels. 4- 35 TDS5000 Series Service Manual www.valuetronics.com...
Page 94: Check Channel Isolation (Crosstalk)
H Set the Horizontal SCALE 20 ns. H Click the Close button. 2. Check channel isolation against limits: a. Display the test signal: Set the generator frequency to 100 MHz and adjust the output level for an 8-division display. 4- 36 TDS5000 Series Service Manual www.valuetronics.com...
Page 95 Check — Amplitude of each trace other than CH 4 is 0.16 division or less (discount trace width). Enter amplitude on the test record. 3. Disconnect the hookup: Disconnect the cable from the generator output at the input connector of the channel. 4- 37 TDS5000 Series Service Manual www.valuetronics.com...
Page 96: 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 TG501A Time Mark Generator). H Set the Horizontal SCALE to 200 ns. H From the button bar, click the Vert button. Click the Termination 50 Ω...
Page 97 ±1.5 divisions of the center graticule. See Figure 4- -17 on page 4- -40. H Enter the number of divisions on the test record. 4- 39 TDS5000 Series Service Manual www.valuetronics.com...
Page 98 Set horizontal scale and delayed time. Figure 4- 17: Measurement of accuracy - long-term and delay time 3. Disconnect the hookup: Disconnect the cable from the generator output at the input connector of CH 1. 4- 40 TDS5000 Series Service Manual www.valuetronics.com...
Page 99: Check Delta Time Measurement Accuracy
SMA T to male to male adapter connector short BNC T connector 20I 50 Ω cable 50 Ω cable 2X attenuator BNC to SMA adapter Figure 4- 18: Delta time accuracy test hookup 4- 41 TDS5000 Series Service Manual www.valuetronics.com...
Page 100 H Click Setup Ref Levs and set Mid Ref to 50%. Click Close. H Press the RUN/STOP button to start the acquisitions. H Wait about 30 seconds. H Press RUN/STOP button to freeze the display. H Record the all statistics values. 4- 42 TDS5000 Series Service Manual www.valuetronics.com...
Page 101: Table 4- 4: Delta Time Measurement
50 Ω by selecting the channel tab and clicking the Termination 50 Ω button H Press RUN/STOP button to start the display. H Repeat step d. 2. Disconnect all test equipment from the oscilloscope: 4- 43 TDS5000 Series Service Manual www.valuetronics.com...
Page 102: Trigger System Checks
See Figure 4- -19. The 10X attenuator is optional if the SG503 is used. TDS5000 oscilloscope Sine Wave Generator Output 10X Attenuator 50 Ω coaxial cable Figure 4- 19: Initial test hookup 4- 44 TDS5000 Series Service Manual www.valuetronics.com...
Page 103 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. H Enter the time on the test record. 4- 45 TDS5000 Series Service Manual www.valuetronics.com...
Page 104: Figure 4- 20: Measurement Of Time Accuracy For Pulse And Glitch Triggering
H Use the multipurpose knob to increase the Lower Limit readout until triggering is lost. H CHECK that the Lower Limit readout, after the oscilloscope stops triggering, is within 1.9 s to 2.1 s, inclusive. H Enter the time on the test record. 4- 46 TDS5000 Series Service Manual www.valuetronics.com...
Page 105 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- 47 TDS5000 Series Service Manual www.valuetronics.com...
Page 106: Figure 4- 21: Initial Test Hookup
Sine Wave Generator 50 Ω Terminator Precision 50 Ω coaxial cable Figure 4- 21: Initial test hookup 2. Confirm the trigger system is within sensitivity limits (50 MHz): a. Display the test signal: 4- 48 TDS5000 Series Service Manual www.valuetronics.com...
Page 107 H Enter pass/fail result for trigger on the test record. H Leave the trigger system triggered on the positive slope of the waveform before continuing to the next step. 4- 49 TDS5000 Series Service Manual www.valuetronics.com...
Page 108: Figure 4- 22: Measurement Of Trigger Sensitivity - 50 Mhz Results Shown
A- ->B Seq tab and click the A- ->B Sequence A Only button. Then select the A Event tab. H Press Close. 3. Confirm the AUX Trigger input: a. Display the test signal: 4- 50 TDS5000 Series Service Manual www.valuetronics.com...
Page 109 Some TDS models need a high frequency (>1 GHz) generator; see footnote 1 in Table 4- -1 on page 4- -18. b. Set the Horizontal Scale: Set the Horizontal SCALE to 400 ps. 4- 51 TDS5000 Series Service Manual www.valuetronics.com...
Page 110 NOTE. You just checked the trigger sensitivity. If desired, you can repeat steps 1 through 4d for the other channels (CH 2, and, if equipped, CH 3 and CH 4). 5. Disconnect the hookup: Disconnect the cables from AUX IN and from the channel last tested. 4- 52 TDS5000 Series Service Manual www.valuetronics.com...
Page 111: 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- 53 TDS5000 Series Service Manual www.valuetronics.com...
Page 112 H Click the Close 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- 54 TDS5000 Series Service Manual www.valuetronics.com...
Page 113: Figure 4- 24: Measurement Of Main Trigger Out Limits
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, click the Vert button. Click the Termination 50 Ω button. H Click Close. 4- 55 TDS5000 Series Service Manual www.valuetronics.com...
Page 114: Figure 4- 25: Initial Test Hookup
4. Disconnect the hookup: Disconnect the cables from the channel inputs and the rear panel outputs. Check Probe Equipment One 10X oscilloscope probe, such as Tektronix P5050 Compensation Output required See page 4- - 17. Also, the oscilloscope must have passed Check Prerequisites Long-Term Sample Rate and Delay Time Accuracy on page 4- - 38.
Page 115: Figure 4- 26: Measurement Of Probe Compensator Frequency
H From the button bar, click Refs; then select the Ref 1 tab. H Click the Save Wfm to Ref1 Save button to save the probe compensation signal in reference 1. H Disconnect the adapter from CH 1 and the probe compensation connector. 4- 57 TDS5000 Series Service Manual www.valuetronics.com...
Page 116 H Record the setting of the DC generator. H Adjust the output of the DC calibration generator until it precisely overlaps the base (lower) level of the stored probe compensation signal. (This value will be near zero volts.) 4- 58 TDS5000 Series Service Manual www.valuetronics.com...
Page 117 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. This completes the performance verification of the oscilloscope. 4- 59 TDS5000 Series Service Manual www.valuetronics.com...
Page 118: Sine Wave Generator Leveling Procedure
1. Install the test hookup: Connect the equipment as shown in Figure 4- -29. TDS5000 oscilloscope Sine Wave Generator Level Meter Input Power divider Output Attenuators (if necessary) Power sensor Figure 4- 29: Sine wave generator leveling equipment setup (Method A) 4- 60 TDS5000 Series Service Manual www.valuetronics.com...
Page 119 Two precision coaxial cables (Item 5) See page 4- - 17 Prerequisites 1. Install the test hookup: Connect the equipment as shown in Figure 4- -30 (start with the sine wave generator connected to the oscilloscope). 4- 61 TDS5000 Series Service Manual www.valuetronics.com...
Page 120 H Disconnect the sine wave generator from the power sensor. Connect the sine wave generator to the oscilloscope and proceed with the test instructions that require a leveled sine wave generator at the frequency you set in step 4. 4- 62 TDS5000 Series Service Manual www.valuetronics.com...
Page 121: Calibration Procedure
See Table 5- -1. Table 5- 1: Calibration required for module replaced Module replaced Calibration required Front panel assembly Acquisition board Processor board Micro ATX processor assem- 5- 1 TDS5000 Series Service Manual www.valuetronics.com...
Page 122: Required Equipment
TekVisa drivers. These are available on the TDS5000 1 ea Application CD GPIB cables GPIB cable, 1 m minimum length, Tektronix part number 2 ea 002-0991-01 or similar 5- 2 TDS5000 Series Service Manual...
Page 123: Overview Of The Procedure
The sample procedure listed is fully automated. Once the program is started, all of the steps will run without manual intervention. 5- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 124: Instrumentation Setup
GPIB address. If the address is set to 0 or 1, change it to an address between 2 and 30 (inclusive). Make a note of the address setting for use later in this procedure. 5- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 125: Table 5- 3: Gpib Devices Required By Test Program
Define GPIB devices and their addresses for compatibility with the test program as shown in Table 5- -3. Table 5- 3: GPIB devices required by test program Device name GPIB address <controller> DUT1 5- 5 TDS5000 Series Service Manual www.valuetronics.com...
Page 126: Calibration Program Installation And Execution
This is the file you will double click to execute the calibration procedure. 5. For the sample program, program execution is a matter of pressing the “start calibration” button. 5- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 127: Calibration Program Operation
Locate your calibration program. You can adapt the sample program listed on page 5- -37. Put the program in an appropriate location such as a folder labeled c:\programfiles\tds5000. 5- 7 TDS5000 Series Service Manual www.valuetronics.com...
Page 128 Calibration Procedure 5- 8 TDS5000 Series Service Manual www.valuetronics.com...
Page 129: Commands
Return the required stimulus for this calibration step CALibrate:PRObestate:CH<x> Returns the calibration status of the attached probe. CALibrate:RESults? Returns the status of all calibration subsystems without performing an SPC operation. CALibrate:RESults SPC? Returns the results of the last SPC operation. 5- 9 TDS5000 Series Service Manual www.valuetronics.com...
Page 130 Related Commands CALibrate:RESults:SPC? Syntax CAL? Returns 0 <NR1> indicating that the calibration did not complete successfully 1 (or any non-zero value) <NR1> indicating that the calibration completed without errors 5- 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 131 If the calibration step fails, the step number is not incremented. You can use CALi- brate:FACtory:CONTinue, to repeat a factory calibration step that failed. 5- 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 132 0 <NR1> means that the oscilloscope is not due for factory calibration. 1 <NR1> means that the oscilloscope is due for factory calibration. Example CALIBRATE:NOTIFY:DUE? might return :CALIBRATE:FACTORY:NOTIFY:DUE 0 signifying that factory calibration is not due. 5- 12 TDS5000 Series Service Manual www.valuetronics.com...
Page 133 Argument INFInite means whatever the specified maximum is for the instrument. <NR1> set to a floating point value. Example 1 CALIBRATE:FACTORY:NOTIFY:HOURS 1.5e0 sets the calibration notification time to 1.5 years. Example 2 CALIBRATE:FACTORY:NOTIFY:HOURS? 5- 13 TDS5000 Series Service Manual www.valuetronics.com...
Page 134 Do not send any other commands that change the state of the oscilloscope until the calibration process is complete. Related Commands CALibrate:FACtory:ABOrt Syntax CALibrate:FACtory:STARt Example CALIBRATE:FACTORY:START starts the factory calibration. CALibrate:FACtory:STATus? This command returns the factory calibration status. Syntax CALibrate:FACtory:STATus? 5- 14 TDS5000 Series Service Manual www.valuetronics.com...
Page 135 :CALIBRATE:FACTORY:STEPSTATUS FAIL indicating the last oscilloscope calibration step did not pass CALibrate:FACtory:STEPSTIMulus This command returns the required stimulus for this calibration. Syntax CALibrate:FACtory:STEPSTIMulus Returns Using the format: <Volts>, <Freq>, <Chan>, <Term>, <Token> 5- 15 TDS5000 Series Service Manual www.valuetronics.com...
Page 136 <x> is the channel number the probe is attached to. Example CALIBRATE:PROBESTATE CH1? This query returns the status of the probe calibration for a probe attached to A query might return :CALIBRATE:PROBESTATE:CH1 0 indicating that the probe calibration passed. 5- 16 TDS5000 Series Service Manual www.valuetronics.com...
Page 137 However, this query does not cause an SPC to be run. This command is equivalent to selecting Instrument Calibration from the utilities menu. Related Commands *CAL? Syntax CALibrate:RESults:SPC? Example CALIBRATE:RESULTS:SPC? Returns the results of the last SPC operation. 5- 17 TDS5000 Series Service Manual www.valuetronics.com...
Page 138: Diagnostics Command Group
Sets the last item of a group of items from the same level of test hierarchy DIAg:SELect:SUBSYS Selects one of the available diagnostic subsystems DIAg:SELect:TEST Selects one of the available diagnostic tests DIAg:STATE Sets the instrument operating state 5- 18 TDS5000 Series Service Manual www.valuetronics.com...
Page 139 <NR1> A 0 enables the halt function; any other number disables the halt function. Example DIAG:CONTROL:HALT ON This command enables the halt function, causing the execution of diagnostics to halt at the first diagnostic failure that occurs. 5- 19 TDS5000 Series Service Manual www.valuetronics.com...
Page 140 This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then pressing Run. Related Commands DIAg:STATE Syntax DIAg:EXECUTE Example DIAG:EXECUTE This command starts the execution of the selected set of diagnostics. 5- 20 TDS5000 Series Service Manual www.valuetronics.com...
Page 141 This query can be issued while diagnostics are still in progress. Related Commands DIAg:ITEM?, DIAg:ITEM:NAME?, DIAg:ITEM:RESULT?, DIAg:ITEM:SUB- ITEMS? Syntax DIAg:ITEM:FAILURES? <NR1> Arguments <NR1> sets the index item about which data will be returned, which ranges from 0 through 15. 5- 21 TDS5000 Series Service Manual www.valuetronics.com...
Page 142 This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then reviewing the Diagnostic Status. This query can be issued while diagnostics are still in progress. Related Commands DIAg:ITEM?, DIAg:ITEM:NAME?, DIAg:ITEM:FAILURES?, DIAg:ITEM:SUBITEMS? 5- 22 TDS5000 Series Service Manual www.valuetronics.com...
Page 143 Utilities menu, choosing the Subsystem, Area or Test setting, and then reviewing the resulting sub-items. This query can be issued while diagnostics are still in progress. Related Commands DIAg:ITEM?, DIAg:ITEM:NAME?, DIAg:ITEM:FAILURES?, DIAg:ITEM:RESULT? Syntax DIAg:ITEM:SUBITEMS? <NR1> 5- 23 TDS5000 Series Service Manual www.valuetronics.com...
Page 144 TEST sets diagnostic testing to the test level. Example 1 DIAG:LEVEL AREA sets the diagnostic testing to the area level. Example 2 DIAG:LEVEL? This query might return :DIAG:LEVEL SUBSYS indicating that the current level of diagnostic test hierarchy is Subsys. 5- 24 TDS5000 Series Service Manual www.valuetronics.com...
Page 145 Related Commands DIAg:NAMe:AREA?, DIAg:NAMe:SUBSYS?, DIAg:NAMe:TEST? Syntax DIAg:NAMe? Example DIAG:NAME:? This query might return :DIAG:NAME:SUBSYS “Acquisition”; AREA “Memory”; TEST “DataFormat” indicating the subsystem name, area name and test name of the currently selected diagnostic test. 5- 25 TDS5000 Series Service Manual www.valuetronics.com...
Page 146 This query can be issued while diagnostics are still in progress. Related Commands DIAg:NAMe?, DIAg:NAMe:AREA?, DIAg:NAMe:TEST? Syntax DIAg:NAMe:SUBSYS? Example DIAG:NAME:SUBSYS? This query might return :DIAG:NAME:SUBSYS “Acquisition” indicating the subsystem name of the current diagnostic test. 5- 26 TDS5000 Series Service Manual www.valuetronics.com...
Page 147 This query can be issued while diagnostics are still in progress. Syntax DIAg:NUMITEMS? Example DIAG:NUMITEMS? This query might return :DIAG:NUMITEMS 7 indicating the number of items on the currently selected level of test hierarchy. 5- 27 TDS5000 Series Service Manual www.valuetronics.com...
Page 148 (or test) execution that the DIAg:RESults? query. This command is equivalent to selecting Instrument Diagnostics from the Utilities menu, and then reviewing the Diagnostic Status. This query can be issued while diagnostics are still in progress. 5- 28 TDS5000 Series Service Manual www.valuetronics.com...
Page 149 Instrument Diagnostics from the Utilities menu, and then choosing an Area from the pull-down lists. NOTE. This command should only be executed if DIAg:LEVEL is set to AREA. Related Commands DIAg:SELect:SUBSYS?, DIAg:SELect:TEST?, DIAg:SELect:LAST Syntax DIAg:SELect:AREA <NR1> 5- 29 TDS5000 Series Service Manual www.valuetronics.com...
Page 150 DIAg:SELect:SUBSYS This command (no query form) selects one of the available subsystems. This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then choosing a Subsystem from the drop-down list. 5- 30 TDS5000 Series Service Manual www.valuetronics.com...
Page 151 Arguments <NR1> selects a test by number, which can range from 0 (zero selects ALL) through 15 (as specified by DIAg:NUMITEMS). Example DIAG:SELECT:TEST 1 selects Test 1 as the test to be executed. 5- 31 TDS5000 Series Service Manual www.valuetronics.com...
Page 152 This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then clicking Abort. Related Commands TEST:STOP Syntax DIAg:STOP Example DIAG:STOP terminates diagnostics (or test) execution at the end of the next low-level test. 5- 32 TDS5000 Series Service Manual www.valuetronics.com...
Page 153: Test Results
This query-only command returns an abbreviated status about the results of the last TEST execution. This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then reviewing the Diagnostic Status. Related Commands TEST, TEST:RESults:VERBose? Syntax TEST:RESults? Example 1 TEST:RESULTS? 5- 33 TDS5000 Series Service Manual www.valuetronics.com...
Page 154 This query-only command returns a more explanatory message about the results of the last TEST execution than the TEST:RESults query. Related Commands TEST, TEST:RESults? Syntax TEST:RESults:VERBose? Example TEST:RESULTS:VERBOSE? might return :TEST:RESULTS:VERBOSE DIAG ABORTED, ERROR 15 in A2D-Dmux 1 interconnects” 5- 34 TDS5000 Series Service Manual www.valuetronics.com...
Page 155 This command (no query form) causes test (or diagnostics) execution to terminate at the end of the next low-level test. This command is equivalent to selecting Instrument Diagnostics from the Utilities menu and then clicking Abort. Related Commands DIAg:STOP Syntax TEST:STOP Example TEST:STOP 5- 35 TDS5000 Series Service Manual www.valuetronics.com...
Page 156 Commands 5- 36 TDS5000 Series Service Manual www.valuetronics.com...
Page 157: Sample Calibration Program
Tektronix provides this listing as is with no warranties of any kind, specifically excluding warranties of merchantability and fitness for a particular purpose. Tektronix, Inc. assumes no liability of any kind for your use of this software. Listing VERSION 5.00 Object = ”{DFEB0DA3-D648-11D4-9C5F-EA48B7E9393D}#1.0#0”;...
Page 158 ”Provide this signal to the TDS5000” 3360 Width 7092 Begin VB.ListBox lstOutput Height 2160 Left TabIndex Width 7212 Begin VB.CommandButton cmdExit Cancel -1 ’True Caption ”E&xit” Height Left 6120 TabIndex ToolTipText ”Stop calibrator program” 4080 Width 1572 5- 38 TDS5000 Series Service Manual www.valuetronics.com...
Page 159 Dim reqChannel As Integer ’ channel needed for the next step Dim reqFreq As Double ’ frequency needed for the next step Dim reqTermination As Double ’ termination in Ohms needed for the next step 5- 39 TDS5000 Series Service Manual www.valuetronics.com...
Page 160 If Left(lstOutput.List(i), 4) = ”GPIB” Then lstOutput.ListIndex = i TvcScope.Descriptor = lstOutput.Text strResult = TvcScope.Query(”*IDN?”) Debug.Print strResult If Left(strResult, 14) = ”TEKTRONIX,TDS5” Then strGPIBtekscope = lstOutput.Text lstOutput.AddItem ”tekScope is ” & strResult End If If Left(strResult, 16) = ”Wavetek Ltd,9500” Then strGPIBwavetek = lstOutput.Text...
Page 161 If opc <> 1 Then Debug.Print ”Timed out trying to get OPC on tekScope.” tekScopeOPC = False Else tekScopeOPC = True End If End Function ’ Resets the WaveTek 9500 to default mode. 5- 41 TDS5000 Series Service Manual www.valuetronics.com...
Page 162 Private Sub setWaveTek() Dim strCommand As String TvcWaveTek.WriteString ”OUTPUT OFF” If reqVolts > 2.9 Then ’ make sure we won’t get an overload error TvcWaveTek.WriteString ”ROUTE:SIGNAL:IMPEDANCE 1000000” End If Select Case reqFreq Case 0 5- 42 TDS5000 Series Service Manual www.valuetronics.com...
Page 163 = ”ROUTE:SIGNAL:IMPEDANCE ” & reqTermination TvcWaveTek.WriteString strCommand End Select TvcWaveTek.WriteString ”OUTPUT ON” Sleep 1000 End Sub ’ Subroutine parses the information from the TDS5000 as to the required signal ’ for the next calibration step. 5- 43 TDS5000 Series Service Manual www.valuetronics.com...
Page 164 = ”[” & String(stepNumber, ”+”) & stepStr & String(110 - (stepNumber + step- StrLen), ”.”) & ”]” txtSignal.Refresh stepNumber = stepNumber + 1 If Left(reqStepName, 3) = ”S01” Then stepNumber = stepNumber + 23 5- 44 TDS5000 Series Service Manual www.valuetronics.com...
Page 165 = TvcScope.Query(”:CALIBRATE:FACTORY:STEPSTATUS?”) If Left(strResult, 4) = ”PASS” Then lstOutput.AddItem ”Passed step ” + reqStepName calPassedLastStep = True Sleep 1000 strResult = TvcScope.Query(”CALIBRATE:FACTORY:STEPSTIMULUS?”) updateSignal (strResult) Debug.Print strResult Else If calPassedLastStep = False Then 5- 45 TDS5000 Series Service Manual www.valuetronics.com...
Page 166 TvcScope.WriteString ”CALIBRATE:FACTORY START” txtSignal.Text = ”TekScope Reset” If tekScopeOPC = False Then Debug.Print ”factory calibration start did not complete” Exit Sub End If Sleep 1000 strResult = TvcScope.Query(”CALIBRATE:FACTORY:STEPSTIMULUS?”) txtSignal.FontSize = 5 updateSignal (strResult) Debug.Print strResult 5- 46 TDS5000 Series Service Manual www.valuetronics.com...
Page 167 = ”Calibration of TDS5000 failed” End If turnOnButtons End Sub Private Sub Form_Activate() txtSignal.Text = ”Calibrator is Ready” turnOnButtons End Sub Private Sub Form_Load() devFound = False calInitDone = False End Sub 5- 47 TDS5000 Series Service Manual www.valuetronics.com...
Page 168 Sample Calibration Program 5- 48 TDS5000 Series Service Manual www.valuetronics.com...
Page 169: 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 170: 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 171: Table 6- 1: External Inspection Check List
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 172: 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 173 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 174 Maintenance 6- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 175: 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, page 6- - 8. Read the cleaning procedure before disassembling the oscilloscope for cleaning. 6- - 7 TDS5000 Series Service Manual www.valuetronics.com...
Page 176: 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 TDS5000 Series Service Manual www.valuetronics.com...
Page 177: Procedures For External Modules
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- - 9 TDS5000 Series Service Manual www.valuetronics.com...
Page 178 4. Remove the VGA panel: Use Figure 6- -2, page 6- -12 as a guide. 6- - 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 179 7. Remove the acquisition trim: Use Figure 6- -2, page 6- -12 as a guide. a. Remove the acquisition trim from the oscilloscope. 8. Reinstallation: Do in reverse steps 2 through 4 to reinstall the appropriate trim. 6- - 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 180 T-15 Torxdrive screw (2) Acquisition trim Right side panel CD-drive trim Front panel trim T-15 Torxdrive screw (2) inset (3) T-15 Torxdrive screw (3) Front panel cover Figure 6- - 2: Trim removal 6- - 12 TDS5000 Series Service Manual www.valuetronics.com...
Page 181: Bottom Covers
Bottom cosmetic cover S/N B030000 and above: T-15 Black oxide Torxdrive screws (5). Note: Be sure to reinstall these screws here--do not use other (longer) screws. Figure 6- - 3: Bottom cover removal 6- - 13 TDS5000 Series Service Manual www.valuetronics.com...
Page 182: Right Side Cover
T-15 Black oxide Torxdrive screw (1). Note: Be sure to reinstall this screw here--do not use another (longer) screw. Right side cover T-15 Torxdrive screws (14) Figure 6- - 4: Right-side cover removal 6- - 14 TDS5000 Series Service Manual www.valuetronics.com...
Page 183: Printer Frame
CAUTION. Take care not to bind or snag the covers on the oscilloscope internal cabling as you remove or install components. 3. Reinstallation: Do in reverse steps a through c to reinstall the cabinet covers. 6- - 15 TDS5000 Series Service Manual www.valuetronics.com...
Page 184 Removal and Installation Procedures T-15 Torxdrive screw (2) Cable restraint T-15 Torxdrive screw (4) Right side cover Printer frame Printer cable Figure 6- - 5: Printer frame removal 4. Reverse the procedure to reinstall. 6- - 16 TDS5000 Series Service Manual www.valuetronics.com...
Page 185 Display adapter board Power supply assembly keypad HD/CD-drive Interconnect board Hard drive Front panel Acquisition board board CD-drive Front panel assembly Power flex circuit Display module assembly Figure 6- - 6: Internal modules 6- - 17 TDS5000 Series Service Manual www.valuetronics.com...
Page 186: Procedures For Modules
Front-Panel Board. c. Use the inch flat-bladed screwdriver to carefully lift the J1 cable connector lock up to disconnect J1 flex cable from the display module 6- - 18 TDS5000 Series Service Manual www.valuetronics.com...
Page 187 T--15 Torx screw (4) Floppy disk support tab Chassis slot (2) Front panel assembly Front panel square opening (2) T--15 Torx screw (6) J1 ribbon cable Figure 6- - 7: Front-panel assembly removal 6- - 19 TDS5000 Series Service Manual www.valuetronics.com...
Page 188 Remove the board from the assembly. 3. Reinstallation: Do in reverse steps a through c to reinstall the Front Panel board. 6- - 20 TDS5000 Series Service Manual www.valuetronics.com...
Page 189 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- - 9: Front panel board and keyboard removal 6- - 21 TDS5000 Series Service Manual www.valuetronics.com...
Page 190: Display Assembly
Disconnect J5 flex cable from the display assembly. Remove the display module assembly from the oscilloscope. See Figure 6- -10, page 6- -23. 6- - 22 TDS5000 Series Service Manual www.valuetronics.com...
Page 191 Separate the assembly by carefully prying the (outer) Touch panel assembly from the (inner) Display assembly. Insert a flat-bladed screwdriver in the access notches to push out on the Touch panel assembly. 6- - 23 TDS5000 Series Service Manual www.valuetronics.com...
Page 192 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 d to reinstall the board. 6- - 24 TDS5000 Series Service Manual www.valuetronics.com...
Page 193 Grasp the flex circuit and pull it out of the Display assembly. 4. Reinstallation: Do following procedure to reinstall the On/Standby Switch. a. Remove the protective backing on the power flex circuit. 6- - 25 TDS5000 Series Service Manual www.valuetronics.com...
Page 194 Firmly press the flex circuit to the Display assembly chassis surface. Display assembly Power flex circuit Front view Display adapter board Power flex circuit Back view Figure 6- - 13: Power flex circuit removal 6- - 26 TDS5000 Series Service Manual www.valuetronics.com...
Page 195 Floppy drive cable T-15 Torx screw (2) Figure 6- - 14: Floppy disk drive assembly removal c. Remove the two small phillips screws that secure the floppy disk drive assembly to the bracket. 6- - 27 TDS5000 Series Service Manual www.valuetronics.com...
Page 196 Remove the T-15 Torx screw that secures the CD/Hard Disk Drive assembly to the chassis. c. Pull the CD/Hard Disk Drive assembly away from the chassis far enough to access the drives. 6- - 28 TDS5000 Series Service Manual www.valuetronics.com...
Page 197 Removal and Installation Procedures HD/CD-drive Interconnect board T-15 Torx screw (1) HD/CD-drive assembly Tab (2) Figure 6- - 16: CD/Hard disk drive assembly removal 6- - 29 TDS5000 Series Service Manual www.valuetronics.com...
Page 198 Removing the hard disk drive Hard disk drive Phillips screw (4) HD/CD-drive Interconnect board CD-drive and hard drive bracket Figure 6- - 17: Removing the CD drive or hard disk drive from the bracket 6- - 30 TDS5000 Series Service Manual www.valuetronics.com...
Page 199 Disconnect the fan cable from the PC interface board. See Figure 6- -19. d. Lift the fan assembly up and out from the chassis. 4. Reinstallation: Do in reverse steps a through d to reinstall the fan assembly. 6- - 31 TDS5000 Series Service Manual www.valuetronics.com...
Page 200 CAUTION. Take care when handling the fans; the fan blades are brittle and can be easily damaged. Plastic fastener Plastic fasteners Front of the instrument Left side of the instrument Back of the instrument Figure 6- - 18: Fan fastener removal 6- - 32 TDS5000 Series Service Manual www.valuetronics.com...
Page 201: Power Supply
6- -17. Additional modules to be Removed: H Trim (all) H Right-side cover 2. Orient the oscilloscope: Set the oscilloscope so its bottom is down on the work surface and the back is facing you. 6- - 33 TDS5000 Series Service Manual www.valuetronics.com...
Page 202 (4) Power supply Right side of the instrument T-15 Torx screw (1) Disconnect from the PC interface board Disconnect from the PC interface board Figure 6- - 20: Power supply removal 6- - 34 TDS5000 Series Service Manual www.valuetronics.com...
Page 203 Remove the six jack screws that secure the Motherboard connectors to the connector panel of the rear chassis. b. Remove the six T-15 Torx screws that secure the Motherboard to the rear chassis. 6- - 35 TDS5000 Series Service Manual www.valuetronics.com...
Page 204 T-15 Torx screw (9) Motherboard Disconnect from the assembly PC interface board CD-hard drive Interconnect Disconnect board from the motherboard T-15 Torx screw (6) Motherboard Disconnect from the motherboard Figure 6- - 21: Motherboard removal 6- - 36 TDS5000 Series Service Manual www.valuetronics.com...
Page 205 When installing the PC interface board, set the board in place and align the J1800 halves using the guide pin. Gently press the board into place to seat the connector between the PC interface board and the acquisition board. 6- - 37 TDS5000 Series Service Manual www.valuetronics.com...
Page 206 Do not remove this screw! Interface board Disconnect from the PC interface board Acquisition board Back of the instrument Figure 6- - 22: PC interface board removal 6- - 38 TDS5000 Series Service Manual www.valuetronics.com...
Page 207: Acquisition Board
Install the six T-15 Torx screws that secure the Acquisition board to the front panel. c. Install the six T-15 Torx screws that secure the Acquisition board to the chassis. d. Connect the three coaxial cables to the Acquisition board. 6- - 39 TDS5000 Series Service Manual www.valuetronics.com...
Page 208 (6) Disconnect ribbon cable from the acquisition board Probe interface circuit board J1800 Coaxial cable (1) T--15 Torx screw (6) Coaxial cable (2) Figure 6- - 23: Acquisition circuit board removal 6- - 40 TDS5000 Series Service Manual www.valuetronics.com...
Page 209: Troubleshooting
PC troubleshooting and Windows ME skills. Details of PC and Windows ME 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 210 H Defective backlighting display lamp H Faulty display H Faulty controller board H Faulty inverter board H Faulty display adapter board BIOS error messages H Refer to the BIOS error message table on page 6--52 6- - 42 TDS5000 Series Service Manual www.valuetronics.com...
Page 211: Equipment Required
Fault Isolation Procedure Follow the primary troubleshooting tree in Figure 6- -24 on page 6- -44 for fault isolation. This tree calls for you to run the diagnostics programs, and check for BIOS errors. 6- - 43 TDS5000 Series Service Manual www.valuetronics.com...
Page 212 2 External monitor controls turned down 3 Defective monitor See BIOS error BIOS error code, Table 6--9 message? on page 6--52 Figure 6- - 24: Primary troubleshooting tree 6- - 44 TDS5000 Series Service Manual www.valuetronics.com...
Page 213 If removing the boards did not find the problem, replace the power supply. TP1103 CR710 TP1102 PAI load error LED CR700 CR520 PAI loading Hard disk activity LED Reset button JP1100 Forced Power on Figure 6- - 25: Location of jumpers and reset button 6- - 45 TDS5000 Series Service Manual www.valuetronics.com...
Page 214: Table 6- -5: Power Supply Voltages
Pins C20, C21, C22, C23, C24, C25 +5.1 V Pin E12 +16.3 V Pins E13, E14, E15, E16, E17, E18 +5.5 V Pins E19, E20, E21, E22, E23, E24 --5.4 V Pin E25 --16.4 V 6- - 46 TDS5000 Series Service Manual www.valuetronics.com...
Page 215 7. On the Settings tab of the desktop properties, select Advanced and then the Performance tab. Hardware Acceleration must be set to Full for video merge to work. If you change the setting, reboot. 6- - 47 TDS5000 Series Service Manual www.valuetronics.com...
Page 216: Pc Interface And Pc Motherboard Diagnostics
Memory DRAM March Memory NVRAM PCI Bus Scan Registers PAI Display Registers Display Acquisition Registers DAC Registers Demux Registers Preamp Registers PLL Registers ADC Memory MemData Memory MemAddr Memory DataFormat Memory MemSpeed 6- - 48 TDS5000 Series Service Manual www.valuetronics.com...
Page 217 TrgLvlComp LogicComp1 TrgLvlComp LogicComp2 TrgLvlComp LogicComp3 TrgLvlComp LogicComp4 GTL TICounters GTL GTLBigCntrs HITL Ch1Edge HITL AfterDBE HITL AfterDBT HITL Slewrate HITL LineTrig HITL HITL Extended Glitch Extended PulseWidth Nibble Bus Misc GPIB Interface 6- - 49 TDS5000 Series Service Manual www.valuetronics.com...
Page 218 If the oscilloscope Diagnostics test fails, the oscilloscope is defective. To run the oscilloscope Diagnostics, do the following steps: 1. Turn off all other applications. 2. From the menu bar, touch Utilities and then select Instrument Diagnostics. 6- - 50 TDS5000 Series Service Manual www.valuetronics.com...
Page 219: Firmware Updates
CD. If you want to order a firmware update, contact your Tektronix service center. After Repair After removal and replacement of a module due to electrical failure, you must perform the calibration or software update as indicated in Table 6- -8.
Page 220: Bios Error Messages
Error in the keyboard connection. Make sure keyboard is connected properly. KB/Interface Error Keyboard interface test failed. Memory Size Decreased Memory size has decreased since the last boot. If no memory was removed, then memory may be bad. 6- - 52 TDS5000 Series Service Manual www.valuetronics.com...
Page 221 NVRAM/CMOS/PASSWORD cleared by NVRAM, CMOS, and passwords have been cleared. Jumper The system should be powered off and the jumper removed. <CTRL_N> Pressed CMOS is ignored and NVRAM is cleared. User must enter Setup. 6- - 53 TDS5000 Series Service Manual www.valuetronics.com...
Page 222: Bios Beep Codes
When the oscilloscope is powered on, the PAI Loading and the Load Error LEDs (CR700 and CR710) will turn on momentarily, and then turn off. The hard disk activity can be monitored by observing the status of CR520. 6- - 54 TDS5000 Series Service Manual www.valuetronics.com...
Page 223: Troubleshooting Using Reset Circuits
TP1103 CR710 TP1102 PAI load error LED CR700 CR520 PAI loading Hard disk activity LED Reset button JP1100 Forced Power on Figure 6- - 27: Location of jumpers and reset button 6- - 55 TDS5000 Series Service Manual www.valuetronics.com...
Page 224 CTRL-ALT-DEL twice. This resets Windows and TP1102. 5. When you are done troubleshooting, change the BIOS setting back to PCI. NOTE. The 69000 video adapter located on the Tektronix PC Interface board is the primary video adapter. A second video adapter is located on the PC motherboard.
Page 225: Installing The Pc Motherboard Serial Number
2. Use the following command to install the serial number (the actual serial number should be in single quotes): :HWAccountant:SERIAL ’serialNumber’ 3. After sending this command, reboot the instrument. After rebooting, a valid unique ID (UID) is available. 6- - 57 TDS5000 Series Service Manual www.valuetronics.com...
Page 226: Update/Restore The Pc Motherboard Cmos
Update/Restore the PC Motherboard CMOS If the CMOS parameters become corrupted, restore the CMOS memory using the following procedure: CAUTION. Only install CMOS parameters from Tektronix. CMOS parameters from other manufacturers may make your oscilloscope inoperable. 1. Edit the autoexec.bat file.
Page 227 Utilities Format command. Format will destroy all data currently on the disk. 3. If reformatting the hard disk and reloading the software will not repair the disk, install a new hard disk drive. 6- - 59 TDS5000 Series Service Manual www.valuetronics.com...
Page 228 Troubleshooting 6- - 60 TDS5000 Series Service Manual www.valuetronics.com...
Page 229: 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- 61 TDS5000 Series Service Manual www.valuetronics.com...
Page 230 Repackaging Instructions 6- 62 TDS5000 Series Service Manual www.valuetronics.com...
Page 231: Options And Accessories
Options and Accessories This section lists the standard and optional accessories available for the TDS5000 Series oscilloscopes, as well as the product options. Options You can order the options shown in Table 7- -1 with the oscilloscope. Table 7- 1: Instrument options...
Page 232: Table 7- 2: Instrument Upgrades
Additional 4 years of repair You can order the upgrade kits shown in Table 7- -2 to extend the performance of your instrument after its initial purchase. Contact your local Tektronix represen- tative for details and the most current information.
Page 233: Table 7- 3: Standard Accessories
Options and Accessories Table 7- 2: Instrument upgrades (Cont.) TDS5UP upgrade* Description Option W2K Windows 2000 Professional Edition (contact your local Tektronix representative for details) Option CPU Upgrade to current motherboard and processor (contact your local Tektronix representative for details) Option 2A Advanced analysis—equation editor, spectral FFT, and...
Page 234: Table 7- 4: Optional Accessories
Two (TDS5052) or four (TDS5054) 500 MHz 10x passive probes P5050 Optional The accessories in Table 7- -4 are orderable for use with the oscilloscope at the time this manual was published. Consult a current Tektronix catalog for additions, changes, and details. Table 7- 4: Optional accessories Accessory...
Page 235 Table 7- 4: Optional accessories (cont.) Accessory Part number Thermal printer (including five rolls of paper) 655-4920-xx Thermal printer paper (one roll) 016-1897-xx TDS5000 Series rackmount Kit 016-1887-xx Probe calibration, compensation, and deskew adapter (requires a sepa- 067-0405-00 rate pulse generator) Video display clamp 013-0278-00...
Page 236 Wavewriter AWG and waveform creation software S3FT400 VocalLink voice control software VCLNKP GPIB cable (3.3 ft, or 1 m) 012-0991-01 GPIB cable (6.6 ft, or 2 m) 012-0991-00 RS-232 cable 012-1298-00 Centronics cable 012-1250-00 7- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 237: Electrical Parts List
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 TDS5000 Series Service Manual www.valuetronics.com...
Page 238 Electrical Parts List 8- 2 TDS5000 Series Service Manual www.valuetronics.com...
Page 239 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 (P2 on cable) Floppy drive Power supply Probe Acquisition board Interface board Line J1800 Aux In Probe Comp Aux Out Sig Out Ref In J100 J1500 Figure 9- 1: TDS5000 series block diagram 9- 2 TDS5000 Series Service Manual www.valuetronics.com...
Page 241: Mechanical Parts List
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 BEAVERTON, OR 97005 3601 SW MURRY BLVD SUITE 60 TK6253 VOLEX INTERCONNECT INC 646 CARRIBEAN DR SUNNYVALE, CA 94089- - 1108 TK6314 MCX INC 1315 OREGON AVE KLAMATH FALLS, OR 97601- - 6540 10- 3 TDS5000 Series Service Manual www.valuetronics.com...
Page 244 FASTENER,LATCHG:PUSH LOCK,1V60- - 3- - 9- - 999- - 9 80009 214- - 5003- - 00 - - 19 211- - 0738- - 00 SCREW,MACHINE:6- - 32 X 0.625,PNH,STL BLK ZI,TORX 93907 ORDER BY DESC 10- 4 TDS5000 Series Service Manual www.valuetronics.com...
Page 245 Mechanical Parts List Figure 10- 1: External parts 10- 5 TDS5000 Series Service Manual www.valuetronics.com...
Page 246 200- - 4661- - 00 COVER:BOTTOM,COSMETIC,0.040 AL,W/BLACK VINYL ONE 0J9P9 200- - 4661- - 00 SIDE 211- - 1164- - 00 B030000 SCREW,MACHINE:6- - 32 X 0.25 L,PNH,T15,BLACK OXIDE 0KB01 211- - 1164- - 00 10- 6 TDS5000 Series Service Manual www.valuetronics.com...
Page 247 Mechanical Parts List Figure 10- 2: Inner panels 10- 7 TDS5000 Series Service Manual www.valuetronics.com...
Page 248 650- - 4189- - 02 MODULE ASSY: DISPLAY MODULE - - TOUCH SCREEN 80009 650- - 4189- - 02 - - 20 343- - 1676- - 00 CLAMP,CABLE; PC/ABS ALLOY,SILVER GREY 80009 343- - 1676- - 00 10- 8 TDS5000 Series Service Manual www.valuetronics.com...
Page 249 119- - 6441- - 00 FAN,TUBEAXIAL:12VDC,0.15A,1.8W,48CFM,2450RPM,30DBA, 61058 FBA09A12M 92MM X 92MM X 26MM, W/ 7IN LEADS & CONNECTO - - 27 174- - 4531- - 00 CABLE:PRINTER 1DM20 174- - 4531- - 00 10- 9 TDS5000 Series Service Manual www.valuetronics.com...
Page 250 Mechanical Parts List See Fig 10- - 5 Figure 10- 3: Modules 10- 10 TDS5000 Series Service Manual www.valuetronics.com...
Page 251 CD- - W28E- - 93 - - 12 174- - 4671- - 00 CA ASSY,SP:ULTRA DMA/ATA HARD DISK DRIVE,IDE,18” L TK6159 F2N1107 - - 13 174- - 4667- - 00 CA ASSY,SP:FLOPPY DRIVE,19” L,DUAL ENDED TK6159 F3G736 10- 11 TDS5000 Series Service Manual www.valuetronics.com...
Page 252 Mechanical Parts List Figure 10- 4: Drives 10- 12 TDS5000 Series Service Manual www.valuetronics.com...
Page 253 174- - 4483- - 00 CABLE ASSY:FLEX,20 COND,PROBE INTERFACE 1DM20 174- - 4483- - 00 - - 8 679- - 5209- - 00 CKT BD SUBASSY:PROBE INTERFACE 80009 679- - 5209- - 00 10- 13 TDS5000 Series Service Manual www.valuetronics.com...
Page 254 Mechanical Parts List Figure 10- 5: Acquisition assembly 10- 14 TDS5000 Series Service Manual www.valuetronics.com...
Page 255 SOFTWARE KIT:CONTAINS LICENSE CERTIFICATE EASY 80009 020- - 2349- - 00 RESTORE,CERTIFICATE AUTHENTICITY,WIN 98 AND WI 020- - 2398- - 00 REFERENCE KIT:LANGUAGE MANUALS,TDS5000 SERIES 80009 020- - 2398- - 00 071- - 0876- - XX MANUAL,TECH:USER,TDS5000 SERIES TK2548 071- - 0876- - XX...
Page 256 Mechanical Parts List 10- 16 TDS5000 Series Service Manual www.valuetronics.com...

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