Tektronix SPG8000A Service Manual
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Tektronix SPG8000A Service Manual

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SPG8000A
xx
Master Sync / Clock Reference Generator
ZZZ
Service Manual
Revision A
www.tek.com
*P077122000*
077-1220-00

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Summary of Contents for Tektronix SPG8000A

  • Page 1 SPG8000A Master Sync / Clock Reference Generator Service Manual Revision A www.tek.com *P077122000* 077-1220-00...
  • Page 2 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

  • Page 5: Table Of Contents

    Adjust Option SDI .................... Maintenance......................General service information ................. Inspection and cleaning ..................Remove and replace procedures ................Troubleshooting....................Repackaging instructions .................. Replaceable parts ....................Parts ordering information ................. Replaceable parts lists ..................SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 6 Figure 35: Option BG exploded view ................. Figure 36: Genlock/Black board and Option GPS Receiver board exploded view ...... Figure 37: Option SDI board and Option SDI Output board exploded view ......SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 7 Table 34: Front panel assembly replaceable parts ............Table 35: Option AG – replaceable parts ..............Table 36: Option BG – replaceable parts ..............Table 37: Genlock/Black board and Option GPS Receiver board – replaceable parts....SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 8 Table of Contents Table 38: Option SDI – replaceable parts..............Table 39: Standard and optional accessories for the SPG8000A........... SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 9: Important Safety Information

    Read the safety sections of the other component manuals for warnings and cautions related to operating the system. When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 10 Do not operate in an explosive atmosphere. Keep product surfaces clean and dry. Remove the input signals before you clean the product. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 11: Service Safety Summary

    Be sure your work area meets applicable ergonomic standards. Consult with an ergonomics professional to avoid stress injuries. Use only the Tektronix rackmount hardware specified for this product. Service safety summary The Service safety summary section contains additional information required to safely perform service on the product.

  • Page 12: Terms In This Manual

    find out the nature of the potential hazards and any actions that must be taken to avoid them. (This symbol may also be used to refer the user to ratings in the manual.) The following symbol(s) may appear on the product: viii SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 13: Preface

    Preface This manual contains information needed to service an SPG8000A Master Sync / Clock Reference Generator to the module level. If the instrument does not function properly, troubleshooting and corrective measures should be taken immediately to prevent additional problems. NOTE.

  • Page 14: Manual Conventions

    Names of front panel controls and menus appear in the same case (initial capitals, all uppercase, etc.) in the manual as is used on the SPG8000A front panel and menus.

  • Page 15: Product Documentation

    Preface Product documentation The following table lists the user documents for the SPG8000A generator: Table i: Product documentation Availability Document Tektronix Part Number Description Print Quick Start User Manual 071-3080-xx (English) Describes how to install the instrument and provides basic...
  • Page 16 Preface SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 17: Theory Of Operation

    Base instrument theory of operation This section describes the basic operation of the major circuit blocks or modules in the SPG8000A generator. The block diagram shows the modules and functional blocks in the instrument. (See Figure 1.) Information about the circuit blocks, including a detailed block diagram of the Genlock/Black board, follows the SPG8000A block diagram.

  • Page 18: Figure 1: Spg8000A Block Diagram

    Theory of operation Figure 1: SPG8000A block diagram SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 19 Power supply The SPG8000A has a redundant power subsystem, which contains three major components: the two power supply modules and the Power Combiner board. Operation with one power supply module is also supported, but there is no redundancy.

  • Page 20: Optional Modules Theory Of Operation

    Channel buffers (1+2, 3+4, 5+6, 7+8, and silence). These blocks receive the digital audio data from the FPGA and set the output amplitude to the specified level. Figure 2: Simplified block diagram of the Option AG SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 21: Figure 3: Simplified Block Diagram Of The Option Bg

    The samples are read by the SW which then "closes the loop" by writing to the DAC that controls the OCXO. This sets the phase and frequency of all the internal clocks. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 22 LTC time code reader. LTC1 can be configured as an input. An ADC digitizes the LTC input and FPGA logic decodes the time data. The CPU reads the time data and sets the MTOD. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 23: Figure 4: Simplified Block Diagram Of The Genlock/Black, Option Gps, And Ptp Board Circuitry

    Theory of operation Figure 4: Simplified block diagram of the Genlock/Black, Option GPS, and PTP board circuitry SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 24 firmware version number installed on the GPS receiver module (1.03 in the image below). NOTE. SPG8000A firmware version 2.2 or above must be installed to view the GPS receiver firmware version. The ID value in the above readout represents the hardware version of the GPS receiver.
  • Page 25 The software then writes this to a synthesizer on the SPG8000A Main board to control the frequency of the mainframe master 54 MHz clock. This frequency control value can also be seen on the diagnostic display.
  • Page 26 PTP engine and writes it to the MTOD in the main FPGA of the SPG8000A. The genlock FPGA compares the 1pps from the PTP engine to the 1pps from the MTOD and uses the result to drive a phase locked loop. This process makes the MTOD match the time from the PTP.

  • Page 27: Figure 5: Simplified Block Diagram Of Ptp Board

    Errors in these supplies can be seen in the diagnostic menu and will be reported in via the fault LEDS on the front panel. Figure 5: Simplified block diagram of PTP board SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 28: Figure 6: Simplified Block Diagram Of Option Sdi

    FPGA and associated circuits. A Programmable Logic Device (PLD) configures the FPGA by loading a file from the Flash at power up. This configures the FPGA for normal operation; there is a separate file for calibration. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 29 The circle and text overlay functions are generated from the SRAM for each channel. This data is blended with the active portion of the test signal or frame picture information to produce the combined signal information. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 30 The selected input frame resets the counters in the FPGA, establishing the correct video timing. The SPG8000A circuitry also provides a 54 MHz clock for generator mode. This 54 MHz clock drives a DDS in the FPGA to create a digitized sine wave, which is then applied to the flexible generator clock circuit.

  • Page 31: Adjustment Procedures

    PTP signal. Procedures for all three methods are included in this section. If your SPG8000A generator has Option GPS installed you can adjust the clock while the instrument is in operation, which avoids any system downtime or any warm-up period.

  • Page 32: Figure 7: Adjusting The Master Clock Frequency Using A Frequency Standard

    In this case, ensure that the Option GPS is locked to a GPS or GLONASS signal in fine mode. Configure the Black 3 output to supply a 10 MHz sine wave. Connect the Black 3 output to the rear-panel REF connector on the second SPG8000A. Figure 7: Adjusting the master clock frequency using a frequency standard 3.
  • Page 33 DIAGNOSTICS : CALIBRATION. e. Check that the CAL value is less than 2.5 e NOTE. If the CAL value is greater than 2.6 e , the oscillator oven may need to be serviced. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 34: Adjust Master Clock While Locked To Gps Or Glonass

    Press the ENTER button to make the selection. 2. Verify that the instrument has warmed up for at least 20 minutes, with the external antenna GPS and/or GLONASS signal connected. 3. Press the STATUS button. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 35 DIAGNOSTICS : CALIBRATION. e. Check that the CAL value is less than 2.5 e NOTE. If the CAL value is greater than 2.6 e , the oscillator oven may need to be serviced. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 36: Adjust Master Clock While Locked To Ptp

    Cable: up to 200 ft Belden 1694A, or equivalent, with an F connector on one end and a BNC connector on the other end. PTP master locked PTP reference source Tektronix SPG8000A opt PTP and GPS, locked to GPS to GPS. Profile one of: General, AES67 or SMPTE ST2059-2.
  • Page 37 Adjustment procedures 1. Lock the SPG8000A to PTP: NOTE. If the SPG8000A is already locked to PTP, proceed to step 2. a. Connect the RJ45 cable from the PTP source to the PTP port of the SPG8000A to be adjusted.
  • Page 38 DIAGNOSTICS : CALIBRATION. e. Check that the CAL value is less than 2.5 e NOTE. If the CAL value is greater than 2.6 e , the oscillator oven may need to be serviced. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 39: Adjust Option Bg

    Tektronix part number 012-0074-00 75 Ω ±0.1% 75 Ω coaxial terminator Tektronix part number 011-0102-03 BNC T connector Tektronix part number 103-0030-00 Tektronix part number 103-0090-00 BNC female to dual banana adapter SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 40: Figure 8: Variable Resistors On The Option Bg Board

    SPG8000A with the top cover removed. Dangerous potentials exist at several points within the instrument. 1. Remove the top cover of the SPG8000A. (See page 53, Top cover.) 2. Locate the variable resistors on the BG circuit board. (See Figure 8.) Figure 8: Variable resistors on the Option BG board 3.
  • Page 41 14. Change the BNC cable connection from the CMPST 1 to the CMPST 2 connector. 15. Locate variable resistor R791 on the BG circuit board. 16. Adjust R791 so that the output offset is 0 V ±1 mV. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 42 26. Change the BNC cable connection from the CMPST 1 connector to the CMPST 2 connector. 27. Locate variable resistor R781 on the BG circuit board. (See Figure 8.) 28. Adjust R781 so that the output level is 700 mV ±1 mV. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 43: Figure 10: Adjusting Chroma Gain

    2. Locate the variable resistors on the BG circuit board. (See Figure 8.) 3. Use the 75 Ω BNC cable to connect the CMPST 1 connector on the SPG8000A to the CH 1 connector on the oscilloscope, as shown. (See Figure 10.) Figure 10: Adjusting chroma gain 4.

  • Page 44: Figure 11: Triggered Display For Adjusting The Option Bg Chroma Gain

    11. Locate variable resistor R977 on the BG circuit board. (See Figure 8.) 12. Adjust R977 to match the first chroma packet to the level of the preceding 75% flat bar. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 45: Adjust Genlock/Black Board

    1. Restart the instrument in Factory mode. (See page 115, To power up in factory mode.) 2. Connect the BLACK 1 output to the multimeter as shown in the following figure. (See Figure 12.) Figure 12: Equipment connections for Genlock/Black adjustments SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 46 Press the ENTER button to save the setting and exit the offset calibration menu. 6. Move the cable to the next output and repeat steps 3 through 5 for the BLACK 2 and BLACK 3 outputs. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 47: Adjust Option Sdi

    Tektronix part number 012-0057-01 cable 75 Ω precision terminator 75 Ω ±0.1% Tektronix part number 011-0102-03 BNC T connector Tektronix part number 103-0030-00 BNC female to dual banana Tektronix part number 103-0090-00 adapter SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 48: Table 7: Sdi Output Amplitude

    824 mV Measured value (μ) with attenuation SDI 2A amplitude 776 mV 824 mV Measured value (μ) with attenuation SDI 2B amplitude 776 mV 824 mV Measured value (μ) with attenuation SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 49 6. Set the DMM to measure AC voltage using a medium filter setting. Set the range to allow for four digits of RMS amplitude. 7. Record the DMM measurement in the SDI output amplitude table. (See Table 7 on page 32.) SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 50 4. On the oscilloscope, select measurement 1 and then pulse amplitude and set it to measure Cycle RMS. 5. On the oscilloscope, select measurement 2 and then pulse amplitude and set it to measure Cycle Mean. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 51 8. Press the right (►) arrow button to select 20 Bits Square. 9. Press the ENTER button. 10. If necessary, set the oscilloscope as follows: Time/Div: 2 ns Volts/Div: 100 mV Averaging: 16 Record Length: 4000 points SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 52 24. Press the ENTER button. 25. Press the right (►) arrow button to select 20 Bits Square. 26. Press the ENTER button. 27. Repeat steps 15 through 21 for the SDI 1B output. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 53 38. Press the ENTER button. 39. Repeat steps 15 through 21 for the SDI 2B output. 40. Cycle the power on the SPG8000A to return the generator to normal operating mode. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 54 Adjustment procedures SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 55: Maintenance

    Performance Verification Technical Reference manual should be done every interval 12 months. In addition, a performance check is recommended after repair. If the SPG8000A generator does not meet performance criteria, repair is necessary. Terms in the manual Throughout this manual, the term module appears, referring to any field-replaceable component or assembly.
  • Page 56 SPG8000A and the latest new options. Warranty repair service Tektronix warrants this product for one year from date of purchase. The warranty appears after the title page in this manual. Tektronix technicians provide warranty service at most Tektronix service locations. The Tektronix product catalog lists all worldwide service locations.
  • Page 57 Handle circuit boards by the edges when possible. Do not slide the circuit boards over any surface. Avoid handling circuit boards in areas that have a floor or work-surface covering capable of generating a static charge. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 58: Inspection And Cleaning

    Use a glass cleaner to clean the LCD. For the rest of the instrument, 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.

  • Page 59: Table 8: External Inspection Checklist

    Loose, broken, or corroded Remove and replace solder connections. damaged circuit board. Burned circuit boards. Burned, broken, or cracked circuit-run plating. Resistors Burned, cracked, broken, Remove and replace blistered condition. damaged circuit board. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 60 5. Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate. 6. Dry all parts with low-pressure, deionized air. Lubrication. There is no periodic lubrication required for the instrument. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 61: Remove And Replace Procedures

    Before performing this or any other procedure in this manual, read the General safety summary and the Service safety summary found at the beginning of this manual. Also, to prevent possible damage to the SPG8000A components, read the information on preventing ESD in this section. (See page 41, Electrostatic damage prevention.)

  • Page 62: Table 10: Required Tools For Removal And Replacement Of Modules

    Maintenance Required equipment. Many of the modules in the SPG8000A can be removed with a screwdriver handle mounted with a #2 Phillips tip. Use this tool whenever a procedure step instructs you to remove or install a screw unless a different size screwdriver is specified in that step.

  • Page 63: Figure 13: Instrument Orientation

    Maintenance Instrument orientation. In this manual, procedures refer to "front," "rear," "top," etc. of the instrument. The following figure shows how the sides are referenced. Figure 13: Instrument orientation SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 64: Figure 14: Module Locator Diagram

    Maintenance The following figure shows the location of the replaceable modules in the SPG8000A. Figure 14: Module locator diagram SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 65: Figure 15: Cable Connections 1 Of 3

    BLACK 4 J830 on BG board 15-10 BLACK 5 J880 on BG board 15-11 J7 on Genlock/Black board 15-12 LOOP J3 on Genlock/Black board Figure 15: Cable connections 1 of 3 SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 66: Figure 16: Cable Connections 2 Of 3

    GPS ANT PWR rear-panel indicator indicator 16-6 Option GPS Receiver board J1 Rear-panel GPS ANT rear-panel connector 16-7 16-8 Option GPS Receiver board J4 Genlock/Black board J12 Figure 16: Cable connections 2 of 3 SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 67: Figure 17: Cable Connections 3 Of 3

    (See Front panel board Figure 19.) 17-4 Main board J703 16-2 Breakout board J2 17-5 Main board J725 (See Front panel board Figure 19.) Figure 17: Cable connections 3 of 3 SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 68 1. You need no equipment to perform this removal procedure. Locate the line cord in the locator diagram. (See Figure 14.) 2. Set the SPG8000A so the instrument bottom is down on the work surface and the rear is facing you.

  • Page 69: Figure 18: Removing The Top Cover

    When handling circuit boards, follow the ESD instructions. (See page 41, Electrostatic damage prevention.) 1. Set the SPG8000A so that the bottom is down on the work surface and the rear is facing you. 2. Remove the top cover as follows: a.
  • Page 70 7. To reinstall, reverse the procedure. Tighten the nuts on the BNCs to 14 in/lbs. Tighten the screws that attach the rear panel to the chassis, to 4 in/lbs. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 71 USB connector so that you do not damage the connector. 4. To reinstall the Front Panel assembly, perform steps 2 through 3 in reverse order. Torque all screws to 5.5 in/lbs. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 72: Figure 19: Removing The Front Panel Assembly

    Maintenance Figure 19: Removing the front panel assembly SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 73: Figure 20: Disassembling The Front Panel Assembly

    Use a screwdriver with a #2 Phillips tip to remove the four screws securing the front cover to the front frame. c. Grasp the front cover and pull it forward. Figure 20: Disassembling the front panel assembly SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 74 Pin 1 is connected to the brown wire at the edge of the cable. This must be at the bottom of the instrument. If necessary, swap ends on the cable to make it route back toward the Main board, while keeping pin 1 down. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 75 Maintenance Power supply There can be one or two power supplies installed in the SPG8000A. If only one is installed, it should be in slot one. The power module blank cover should be installed in the other slot. The power supply modules are replaced as a unit. There are no replaceable subassemblies.

  • Page 76: Figure 21: Removing The Power Supply

    Maintenance Figure 21: Removing the power supply SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 77 5. Pull the Power Combiner board away from the Main board connectors and out of the instrument. 6. To replace the board, reverse the procedure. To reconnect the cables, see the interconnect illustrations. (See page 49, Interconnect illustrations.) SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 78: Figure 22: Removing The Power Combiner Board

    Maintenance Figure 22: Removing the Power Combiner board SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 79 4. Remove the board from the instrument. (See Figure 32.) 5. Reverse the steps to reinstall the PTP board. To connect the cables, see the interconnect illustrations. (See page 49, Interconnect illustrations.) SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 80 6. Replace the instrument rear panel and all nuts and locking washers that were removed from the rear panel. 7. Connect all cables that were disconnected during the removal. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 81 Main board, be careful not to exert pressure on any circuit board. 5. Loosen the Option AG circuit board from the Main board. Pull the option board out of the instrument and place it on a static-free surface. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 82 5. Tighten the BNC connector to 14 in/lbs. To remove the Option AG mounting plate. To remove the mounting plate, follow the procedure for removing a mounting plate. (See page 74, Mounting plate.) SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 83 Main board. Make sure that the pins line up and are not offset. 4. Mate the connectors on the Main board with the replacement Genlock/Black board connectors by “pinching” them together. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 84 (See page 49, Interconnect illustrations.) 4. Push the BNC inward and remove the cable assembly. 5. Replace the BNC/cable assembly by reversing the steps. 6. Tighten the BNC connector to 14 in/lbs. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 85 Plug the light pipe into the light pipe board connector. To remove and replace the Genlock/Black board mounting plate. To remove the mounting plate, follow the procedure for removing a mounting plate. (See page 74, Mounting plate.) SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 86: Figure 23: Remove The Two Nuts

    2. Remove the two nuts securing the bracket to the chassis fan screws using a 7/32 inch nut driver. Figure 23: Remove the two nuts 3. Pull the bracket from the two extended screws on the chassis fan and remove it from the instrument. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 87: Figure 24: Remove The Bracket From The Fan

    Install the output boards into J922 and J917 on the Option SDI board. 6. After replacement, secure the output boards to the SDI board with the bracket attached to the chassis fan. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 88 Main board, be careful not to exert pressure on the Main board. 6. Loosen the Option SDI circuit board from the Main board. Pull the option board straight out the rear of the chassis and place it on a static-free surface. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 89 10. Loosely install the 5 additional screws (Phillips head metric) that attach the circuit board to the mounting plate. 11. Tighten all 7 screws attaching the Option SDI board to the mounting plate and torque to 5.5 in/lb. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 90 3. Carefully remove the circuit board from the mounting plate and place the circuit board on a static-safe surface. Do not flex the circuit board. 4. To replace the mounting plate, reverse the procedure. Tighten the screws to 5.5 in/lbs. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 91: Troubleshooting

    SPG8000A. Diagnostics and When troubleshooting an unknown instrument problem, perform the performance verification procedures for the SPG8000A and installed options. If the problem is performance checks known, run only the diagnostic portion of the performance verification procedures to gain information about the subsystems.
  • Page 92 3. When the message SPG8000A Booting... displays, while continuing to hold the Front Panel ENABLE button, release the STATUS and ENTER buttons. 4. When the message SPG8000A Start up with Factory Mode displays, release the Front Panel ENABLE button. Oscillator calibration...
  • Page 93 5. Use the up (▲) or down (▼) arrow button to select SLOT I/O. 6. Press ENTER to run. 7. Check to see whether the slot passed the test, or whether there is an error message to help you troubleshoot the problem. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 94: Table 14: Slot I/O Test Error Codes

    Frame 1 / 54 and 74.25 MHz clock test Frame 2 / 54 MHz test Genlock Frame test +5 V test +8 V test –5 V and +3.3 V test IRQ signal test Incorrect Hardware configuration SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 95: Table 15: Spg8000A System Diagnostics

    Maintenance SPG8000A diagnostics The following table lists the diagnostics that are available in the SPG8000A. (See Table 15.) The diagnostic type is accessed using the up and down arrow buttons (▲/ ▼). The tests are accessed using the left and right arrow buttons (◄ / ►). To check the results of a diagnostic test, proceed as follows: 1.
  • Page 96 SRAM DATA bus 1 through 3: (▲/ ▼) SRAM MEM TEST: (▲/ ▼) DDR2 ADDRESS BUS 1 and BUS 2: (▲/ ▼) DDR2 MEM TEST: (▲/ ▼) RUN: (▲/ ▼) Pressing ENTER runs the module memory tests. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 97: Table 16: Spg8000A Troubleshooting Procedures

    Fault LED illuminated All of the conditions that drive the fault light should be displayed in the mainframe diagnostic screen. To view the diagnostics, refer to SPG8000A System Diagnostics. (See page 79, SPG8000A diagnostics.) Any of the fans not working Run diagnostics and check the fan speeds.

  • Page 98: Figure 25: Main Board (View From Top)

    Module(s) not working properly Refer to the troubleshooting procedure in this section for the module in question. Figure 25: Main board (view from top) SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 99: Table 17: Equipment Required To Troubleshoot The Option Ag

    Option AG. These procedures will help you decide whether it is necessary to replace your module. If the SPG8000A does not start up or if the display is not working, go to the beginning of the troubleshooting section. (See page 75, Troubleshooting.) Required equipment.

  • Page 100: Figure 26: Option Ag Troubleshooting Procedure

    Maintenance Figure 26: Option AG troubleshooting procedure SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 101: Table 18: Equipment Required For Option Bg Troubleshooting

    BG. These procedures will help you decide whether it is necessary to replace your Option BG module. If the SPG8000A does not start up or if the display is not working, go to the beginning of the troubleshooting section. (See page 75, Troubleshooting.) Required equipment.

  • Page 102: Figure 27: Option Bg Troubleshooting Procedure

    Maintenance Figure 27: Option BG troubleshooting procedure SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 103: Table 19: Equipment Required For Troubleshooting The Genlock/Black Generator Module

    If the SPG8000A does not start up or if the display is not working, go to the beginning of the troubleshooting section. (See page 75, Troubleshooting.) Required equipment. The equipment listed in the following table is needed to troubleshoot the Genlock/Black generator module.

  • Page 104: Table 20: General Problems - Genlock/Black Board

    Run Internal Mode Oven test. (See page 94, Test internal mode oven.) genlock Check that the reference select is set to the correct mode. See the SPG8000A User manual for directions. Verify reference signal is valid and is the correct format. Use a WFM7120 or WFM8300 waveform monitor.

  • Page 105: Table 21: Post Error Codes For The Genlock/Black Module

    Maintenance Power on self test (POST). When you first apply power to an SPG8000A, the Genlock/Black generator board runs a Power On Self Test (POST). If an error is encountered during this POST, the display will show one of several error codes.
  • Page 106 Check diagnostic reported values. There are several internally detected physical measurements which are reported by the Main board and the Genlock/Black generator board. Check the following (see the SPG8000A Technical Reference manual for more information on these diagnostics). Tune – Phase value: The Phase value indicates the second by second differences between the Pulse per Second (PPS) signal from the GPS receiver and the Local 1 PPS signal from the Master Time of Day clock.

  • Page 107: Figure 28: Genlock/Black Generator Module Power Supply Test

    (See Table 22.) Derived supplies depend on the instrument supply fuses for protection. 1. Remove the SPG8000A top cover. (See page 53, Top cover.) 2. Use the following flowchart and table of power supply test points to determine if the Genlock/Black generator power supply is operating correctly.

  • Page 108: Table 22: Power Supply Test Points

    1.15 V to 1.25 V Derived from M +3.3 V TP0421 DO +1.2 V 1.15 V to 1.25 V Derived from M +3.3 V, test point is under the Option GPS Receiver board SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 109: Figure 29: Genlock/Black Generator Board Voltage Test Point And Fuse Locations

    Maintenance Figure 29: Genlock/Black generator board voltage test point and fuse locations SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 110 ENTER button. 2. Compare the Black Burst signals. You can use the frequency accuracy setup from the SPG8000A Specifications and Performance Verification Technical Reference manual to compare the Black Burst signals from the under test to the signals from the reference unit.
  • Page 111 If any bits in the Stuck field show an H or an L, the bit is not moving. Replace the Genlock/Black generator. If any bits in the Short field show an S, there is a short between some of the bits. Replace the Genlock/Black generator. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 112 This will set the RTC correctly. 9. Turn the instrument off. 10. Remove the GPS or GLONASS antenna signal. 11. If the Option GPS installation was temporary, remove Option GPS. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 113: Table 23: Equipment Required For Troubleshooting The Option Gps Module

    If the SPG8000A does not start up or if the display is not working, go to the beginning of the troubleshooting section. (See page 75, Troubleshooting.) Required equipment. The equipment listed in the following table is needed to troubleshoot the Genlock/Black generator module.

  • Page 114: Table 24: General Problems - Option Gps

    Check time zone offset configuration and time of day source. See the Time button menu only information in the SPG8000A Quick Start manual for directions. Time of Day wrong — Lock to GPS or GLONASS to set leap seconds. (See page 96, Lock to GPS or GLONASS Option GPS only to set leap seconds.)

  • Page 115: Table 25: Post Error Code For Option Gps

    Power on self test for Option GPS (POST). When you first apply power to an SPG8000A, the Option GPS runs a Power On Self Test (POST). If an error is encountered during this POST, the display will show one of several error codes.
  • Page 116 GPS receiver is installed in your instrument.) Set to factory defaults (Option GPS). The SPG8000A under test and the SPG8000A unit must be configured to use the GPS or GLONASS signal correctly, to avoid problems while troubleshooting. Ensure a common setup by setting both instruments to the factory presets as follows.
  • Page 117 Maintenance 6. If the SPG8000A module under test is the antenna power source, check that the menu is set to the correct antenna voltage: a. Press the REF button. b. Press the (▼) arrow button to select GPS SETUP, and then press ENTER.
  • Page 118 11. Disconnect the cable from the Option GPS Antenna connector. 12. Reset the Option GPS module to the voltage noted in step 3 or to the correct voltage for the antenna in use. 13. Reconnect the antenna. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 119: Table 26: Equipment Required To Troubleshoot The Option Ptp

    Configure the scope to trigger on one of the channels and display both of them, 1v per div. d. Check the timing of the rising edge of the two 1pps signals. They should align within 1us. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 120 PTP master and slave are not locking correctly. 1. Check the Ethernet activity and rate lights on both ends of the PTP cable. 2. On the SPG8000A, the Green LED indicates activity an the Orange LED indicates 1 Gbe operation.

  • Page 121: Table 27: Equipment Required To Troubleshoot The Option Sdi

    These procedures will help you decide whether it is necessary to replace your troubleshooting module. If the SPG8000A does not start up or if the display is not working, refer to SPG8000A troubleshooting. (See Table 16.) Required equipment. The equipment listed here is needed to troubleshoot Option SDI.

  • Page 122: Table 28: Option Sdi Troubleshooting

    (See page 108, Check the SDI diagnostics.) Run the Download a frame picture with a known good image procedure. (See page 116.) If no other problem found, replace the Option SDI module. SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 123: Table 29: Post Error Codes For Option Sdi

    2. Press up (▲) or down (▼) arrow button to display STATUS: SDI1:. 3. Press and hold the ENTER button for 5 seconds. 4. When the upgrade message appears, press ENTER to accept. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 124 DDS Sweep: This diagnostic capability is available only in factory mode and is not used in normal module troubleshooting. If you run this test, you must restart the instrument to continue. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 125 DDR2 Memory Test: Press the ENTER button to start the test. The test takes approximately 7 seconds to complete. If 0 errors detected is not displayed, replace the Option SDI module. 6. Remove power and then reapply power to the SPG8000A to exit the factory mode. Check the installed firmware version.

  • Page 126: Table 30: Option Sdi Module Factory Default Settings

    100% Color Bars FORMAT 1080 59.94i SAMPLE STRUCTURE/DEPTH YCbCr 4:2:2 10b OUTPUT MODE HD (1920 x 1080) MOVING PICTURE H Step 0 Sample(s) V Step 0 Line(s) Period 1 Frame(s) Random Disable SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 127 8.0 % APH OVERLAY : CIRCLE Status Disable X Position 0.0 % APW Y Position 0.0 % APH Diameter 90.0 % APH OVERLAY : BLINK Text/Circle Blink OVERLAY : BORDER Text/Circle Border Enable SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 128 Serial (0H) TIMECODE Source Without Option GPS: Program Time With Option GPS: Time of Day 30 Drop Frame Enable ATC-LTC ATC-VITC VIDEO Edge Filter Enable AV Timing Mode (SD output mode only) SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 129 Enable Line Field 1, Line: Field 2, Line: 1928 Start Sample Video Channel Luma Link Location Link A Stream Location HS Stream 1 SMPTE 352 PAYLOAD Enable Test Pattern SECONDARY OUTPUT SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 130: Figure 30: Sdi Power Supply Test Points

    Maintenance Check the power supplies. Two of the power supplies require manual verification. 1. Remove the SPG8000A top cover. (See page 53, Top cover.) 2. Check the +5 V supply by measuring the voltage at F121, which should be in the range of +4.75 V to +5.25 V.
  • Page 131 Press the ENTER button. 3. Press the up (▲) or down (▼) arrow button and check for SYSTEM: OPTIONS : ENABLED: 3G, which indicates that this option is enabled. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 132 1. Download one of the sample frame pictures from the SPG8000A SW Library and Documentation DVD that shipped with your product. The sample images are located in the SAMPLE/SDI7 directory on the DVD.

  • Page 133: Repackaging Instructions

    If using Styrofoam kernels, overfill the box and compress the kernels by closing the lid. There should be three inches of tightly packed cushioning on all sides of the instrument. 3. Seal the carton with shipping tape, industrial stapler, or both. SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 134 Maintenance SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 135: Replaceable Parts

    Replaceable parts This section contains a list of the replaceable modules for the SPG8000A generator and available options. Use this list to identify and order replacement parts. Parts ordering information Replacement parts are available through your local Tektronix field office or representative.

  • Page 136: Table 31: Parts List Column Descriptions

    For more information about the module exchange program, call 1-800-833-9200. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix Web site for a list of offices: www.tektronix.com Module repair and return. You may ship your module to us for repair, after which we will return it to you.

  • Page 137: Replaceable Parts Lists

    Replaceable parts Replaceable parts lists The following tables list the replaceable parts for the SPG8000A. Table 32: Main instrument replaceable parts Fig. & index Tektronix part number number Name & description 31-1 211-1194-XX SCREW, MACHINE; M3 X 6MM, FLH BLACK, CROSS REC 200-5248-XX CABINET;...

  • Page 138: Table 33: Chassis Assembly Replaceable Parts

    FUSE; 3.0A, 125 V, FAST BLOW, 0.1 X 0.1 X 0.24, UL REG, CSA CERT 159-5022-XX FUSE; 5.0A, 125 V; FAST BLOW, 0.1 X 0.1 X 0.24, UL REG, CSA CERT; 451005 SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 139: Figure 32: Chassis Assembly Exploded View

    Replaceable parts Figure 32: Chassis assembly exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 140: Table 34: Front Panel Assembly Replaceable Parts

    CIRCUIT BOARD ASSY; FRONT PANEL 260-3054-XX SWITCH KEYPAD; ELASTOMERIC MAT 354-0025-XX RING, RETAINING; EXTERNAL, U/O 0.187 DIA SFT, ZINC PLATED STEEL 213-0216-XX THUMBSCREW; 10-32 X 0.85, 0.375 OD HD, ZINC PLATED STEEL, W/SLOT SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 141: Figure 33: Front Panel Assembly Exploded View

    Replaceable parts Figure 33: Front panel assembly exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 142: Table 35: Option Ag - Replaceable Parts

    SPLIT LOCK WASHER 174-6145-XX CABLE, COAX, MCX TO FEMALE BNC (LENGTH 6 INCHES, 75 OHM) 210-1039-XX WASHER, LOCK INTERNAL TOOTH 220-0497-XX NUT, PLAIN, HEX; 0.5-28 X 0.562 HEX, BRS, NI (NICKEL) PLATED SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 143: Figure 34: Option Ag Exploded View

    Replaceable parts Figure 34: Option AG exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 144: Figure 35: Option Bg Exploded View

    CA ASSY, RF; 75 OHM, COAX, RG179, 7.5 CM L, BNC TO MCX; AGL7 210-1039-XX WASHER, LOCK INTERNAL TOOTH 220-0497-XX NUT, PLAIN, HEX; 0.5-28 X 0.562 HEX, BRS, NI (NICKEL) PLATED Figure 35: Option BG exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 145: Table 37: Genlock/Black Board And Option Gps Receiver Board - Replaceable Parts

    NUT, PLAIN, HEX; 0.5-28 X 0.562 HEX, BRS, NI (NICKEL) PLATED 174-6141-XX CABLE, COAXIAL, MCX TO FEMALE BNC (LENGTH 8 INCHES, 75 OHM) 174-6142-XX CABLE, COAXIAL, MCX TO FEMALE BNC (LENGTH-11 INCHES, 75 OHM) SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 146: Figure 36: Genlock/Black Board And Option Gps Receiver Board Exploded View

    Replaceable parts Figure 36: Genlock/Black board and Option GPS Receiver board exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 147 NUT, PLAIN, HEX; 0.5-28 X 0.562 HEX, BRS, NI (NICKEL) PLATED 348-1944-XX GAP PAD 3000S30 214-5166-XX HEATSINK, PCB TO CHASSIS 211-0101-XX SCREW, MACHINE; 4-40 X 0.25, FLH, 100 DEG, ZINC PLATED STEEL, T8 SPG8000A Master Sync / Clock Reference Generator Service Manual...

  • Page 148: Figure 37: Option Sdi Board And Option Sdi Output Board Exploded View

    Replaceable parts Figure 37: Option SDI board and Option SDI Output board exploded view SPG8000A Master Sync / Clock Reference Generator Service Manual...
  • Page 149 Replaceable parts Table 39: Standard and optional accessories for the SPG8000A Component Tektronix Serial no. Serial no. number part number effective discont'd Name & description STANDARD ACCESSORIES 351-1137-XX RACK, KIT, RAILS 063-4474-XX SOFTWARE AND DOCUMENTATION CD 071-3080-XX QUICK START USER MANUAL, ENGLISH...
  • Page 150 Replaceable parts SPG8000A Master Sync / Clock Reference Generator Service Manual...

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