Tektronix SPG8000 Service Manual
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Tektronix SPG8000 Service Manual

Master sync / clock reference generator
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Download this manual See also: Instruction and Installation Manual
SPG8000
xx
Master Sync / Clock Reference Generator
ZZZ
Service Manual
www.tektronix.com
*P077074901*
077-0749-01

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  • Page 1 SPG8000 Master Sync / Clock Reference Generator Service Manual www.tektronix.com *P077074901* 077-0749-01...
  • 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

    Table of Contents Important safety information ..................General safety summary ..................Service safety summary ..................Terms in this manual ..................Symbols and terms on the product ................. Preface ......................Manual structure ....................Manual conventions ................... Product documentation..................Theory of operation ....................Base instrument theory of operation .................
  • Page 6 Table of Contents List of Figures Figure 1: SPG8000 block diagram ................Figure 2: Simplified block diagram of the Option AG ............Figure 3: Simplified block diagram of the Option BG ............Figure 4: Simplified block diagram of the Genlock/Black and Option GPS circuitry ...... Figure 5: Simplified block diagram of Option SDI ............
  • Page 7 Table of Contents List of Tables Table i: Product documentation.................. Table 1: Equipment required to adjust the master clock using a signal generator......Table 2: Equipment required to adjust the master clock while locked to GPS or GLONASS .... Table 3: Adjusting Option BG ................... Table 4: Equipment required for the Genlock/Black board adjustment procedures......

  • Page 8: Important Safety Information

    Important safety information Important safety information This manual contains information and warnings that must be followed by the user for safe operation and to keep the product in a safe condition. To safely perform service on this product, additional information is provided at the end of this section.
  • Page 9 Important safety information To avoid fire or personal Use proper power cord. Use only the power cord specified for this product and certified for the country of use. injury Ground the product. This product is grounded through the grounding conductor of the power cord.

  • Page 10: 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 11: Terms In This Manual

    Important safety information Terms in this manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.
  • Page 12 Important safety information viii SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 13: Preface

    NOTE. Contact your local Tektronix representative for information on where to return your instrument if it requires repair during the warranty period. To prevent personal injury or damage to the SPG8000, consider the following before beginning service: The procedures in this manual should be performed only by a qualified service...

  • Page 14: Manual Conventions

    Preface Manual conventions This manual uses certain conventions with which you should become familiar. Some sections of the manual contain procedures for you to perform. To keep those instructions clear and consistent, this manual uses the following 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 SPG8000 front panel and menus.

  • Page 15: Product Documentation

    Changeover Unit System systems for high-definition (HD) 077-0877-xx Integration Technical and standard-definition (SD) digital (ECO8000, ECO8020) Reference video content where Tektronix electronic changeover units and video sync pulse generators are to be deployed. SPG8000 Master Sync / Clock Reference Generator Service Manual...
  • Page 16 Preface SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 17: Theory Of Operation

    Theory of operation Base instrument theory of operation This section describes the basic operation of the major circuit blocks or modules in the SPG8000 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 SPG8000 block diagram.

  • Page 18: Figure 1: Spg8000 Block Diagram

    Theory of operation Figure 1: SPG8000 block diagram SPG8000 Master Sync / Clock Reference Generator Service Manual...
  • Page 19 Theory of operation DC/DC converters. This block converts the +5 V supplied by the Power Combiner board to –5 V, 3.3 V, 8 V, and 5 V analog for use by the circuit boards. Various voltages needed only on the Main board, such as to drive the DDR and processor core, are also provided.

  • Page 20: Optional Modules Theory Of Operation

    Theory of operation The Power Combiner board also has the fan controllers, so the speed of all three fans can be set and sensed by the instrument processor over the I2C interface. The network interface signals pass through the combiner but only connect to the two connectors.

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

    Theory of operation Option BG theory of This section describes the basic operation of the major blocks in the Option BG circuitry. operation Bus interface. This block provides the communication between the Option BG circuitry and the instrument Main board. Sync generator.
  • Page 22 Theory of operation All access to this circuitry occurs through the address and data busses, shown as the CPU I/O bus. The interface is a PLD on the GPS board, which is the central control interface for MCU data transactions to and from the GPS circuitry. MTOD clock.

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

    Theory of operation Figure 4: Simplified block diagram of the Genlock/Black and Option GPS circuitry SPG8000 Master Sync / Clock Reference Generator Service Manual...
  • Page 24 Theory of operation Option GPS theory of Option GPS is a receiver board, which is mounted on the standard Genlock/Black board. The option adds GPS and GLONASS input capability. Refer to the operation Genlock/Black block diagram to view the Option GPS interconnections. (See Figure 4.) GPS receiver types Earlier versions of the GPS module can receive only GPS signals.

  • Page 25: Figure 5: Simplified Block Diagram Of Option Sdi

    Theory of operation The mainframe 54 MHz oscillator clocks the Master Time of Day (MTOD) counter. This completes the loop, spread over the two boards, locking the mainframe synthesizer and MTOD counter to the incoming GPS or GLONASS signal. Antenna connector. Option GPS requires an external antenna to receive the GPS or GLONASS time signals.
  • Page 26 Theory of operation Overview. The Option SDI has three circuit boards: the Option SDI board, which mounts horizontally and contains the bulk of the circuitry, and two small output boards. These output boards plug into the SDI board vertically and provide the rear BNC connections and the circuits required to buffer the high-speed output signals.
  • Page 27 Theory of operation Clocks and frames. The SPG8000 circuitry provides three frame pulse signals. The actual frame signal used is the appropriate one for the rate of the signal being generated. The selected input frame resets the counters in the FPGA, establishing the correct video timing.
  • Page 28 Theory of operation SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 29: Adjustment Procedures

    Adjustment procedures This section provides procedures for the adjustments that can be performed by trained service technicians. CAUTION. All Adjustment procedures are to be performed only by trained service technicians. NOTE. Master clock. There are two methods for adjusting the frequency of the master clock.

  • Page 30: Figure 6: Adjusting The Master Clock Frequency Using A Frequency Standard

    Table 1: Equipment required to adjust the master clock using a signal generator Item Minimum requirement Recommended equipment Frequency standard Frequency: 10 MHz ±1×10 A reference Tektronix SPG8000, with –9 Option GPS installed and locked to Amplitude: 8 dBm GPS, GLONASS or equivalent Spectracom/Pendulum 6689...
  • Page 31 Adjustment procedures 5. Set the reference source to CW as follows: a. Press the REF button to display the REFERENCE menu. b. Press the left (◄) or right (►) arrow button to select CW, and then press the ENTER button. 6.

  • Page 32: Adjust Master Clock While Locked To Gps Or Glonass

    Adjustment procedures Adjust master clock while locked to GPS or GLONASS Use this procedure, you can adjust the clock while the instrument is in operation, which avoids any system downtime. NOTE. Earlier versions of the GPS module can receive only GPS signals. Later versions of the GPS module can receive both GPS and GLONASS signals.
  • Page 33 Adjustment procedures 4. Press the up (▲) or down (▼) arrow button to select STATUS : GPS. 5. Check that the signal status shows Locked. 6. Calibrate the oven system: a. Press the SYSTEM button. b. Press the up (▲) or down (▼) arrow button to select CALIBRATE : OVEN.

  • Page 34: Adjust Option Bg

    Table 3: Adjusting Option BG Item Minimum requirement Recommended equipment TV signal generator platform Tektronix SPG8000 with Option BG installed Digital multimeter 5 1/2 digits FLUKE 8842A Oscilloscope Bandwidth: 1 GHz or higher...

  • Page 35: Figure 7: Variable Resistors On The Option Bg Board

    Adjustment procedures Adjust the Option BG output offset and gain WARNING. To avoid serious injury, do not touch exposed connectors or components when operating the SPG8000 with the top cover removed. Dangerous potentials exist at several points within the instrument. 1.
  • Page 36 Adjustment procedures 5. Select the DAC Offset (0 V DC) calibration signal for the Option BG outputs as follows: a. Press the BLACK button until you see BLACK 4 : FORMAT on the display. b. Use the left (◄) or right (►) arrow button to select NTSC. c.
  • Page 37 Adjustment procedures 17. Select the DAC Gain (700 mV DC) calibration signal for the Option BG outputs as follows: a. Press the BLACK button until you see BLACK 4 : FORMAT on the display. b. Use the left (◄) or right (►) arrow button to select NTSC. c.

  • Page 38: Figure 9: Adjusting Chroma Gain

    Adjustment procedures Adjust the Option BG chroma gain WARNING. To avoid serious injury, do not touch exposed connectors or components when operating the SPG8000 with the top cover removed. Dangerous potentials exist at several points within the instrument. 1. Remove the top cover of the SPG8000. (See page 46, Top cover.) 2.

  • Page 39: Figure 10: Triggered Display For Adjusting The Option Bg Chroma Gain

    Adjustment procedures 5. Set the oscilloscope controls as follows: Vertical: 100 mV / div Sample depth: 100 K Horizontal: 2.5 μs / div Trigger position: 50% Vert offset: 700 mV Trigger: 720 mV, rising edge Hold-off: 63 μs 6. After you see a stable trace on the oscilloscope, change the Vertical setting to 5 mV / div.

  • Page 40: Adjust Genlock/Black Board

    Item Minimum requirement Recommended equipment Digital multimeter 5 1/2 digits FLUKE 8842A Length: 42 inches Tektronix part number 012-0074-00 75 Ω BNC cable 75 Ω coaxial precision 75 Ω ±0.1% Tektronix part number 011-0102-03 terminator BNC T connector Tektronix part number 103-0030-00...
  • Page 41 Adjustment procedures 3. Press the BLACK button until you see BLACK 1 on the display. 4. Set the Black level: a. Press the up (▲) or down (▼) arrow button to select CALIBRATION. b. Press the left (◄) or right (►) arrow button to select CALIBRATION : AMPLITUDE.

  • Page 42: Adjust Option Sdi

    Table 5: Equipment required for the Option SDI adjustment procedures Item Minimum requirement Recommended equipment TV signal generator platform Tektronix SPG8000 with Option SDI installed Digital signal analyzer Digital signal analyzer with a 20 GHz Tektronix DSA8200 with an 80E04...

  • Page 43: Table 6: Sdi Output Amplitude

    Adjustment procedures SDI output amplitude Print this table for use during the adjustment procedure. adjustment table Table 6: SDI output amplitude Minimum Value Maximum Characterization — — — — DMM Measurement (typically 0.2880 V) — — — — Oscilloscope Cycle RMS (typically 116 mV) —...
  • Page 44 Adjustment procedures Characterize the test Before adjusting the SDI Output Amplitude, you must first characterize the test system amplitude. system amplitude There are three parts to the amplitude characterization: Part A: Sets up a characterization reference to the DMM. Part B: Set up the DSA oscilloscope. Part C: Characterizes the test system.
  • Page 45 Adjustment procedures Part B: Set up the digital signal analyzer. CAUTION. Electrostatic discharge can damage the oscilloscope modules. To prevent damage, always work in a static free environment and discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules.
  • Page 46 Adjustment procedures 6. Record the Cycle RMS and Cycle Mean values in the SDI output amplitude table. 7. Calculate the corrected RMS amplitude of the sine wave: 8. Record the result in the test record. 9. Calculate the total attenuation factor for the system. This is the DMM measurement divided by the corrected RMS sine wave amplitude.
  • Page 47 Adjustment procedures 11. On the oscilloscope, select Measurement 3, Pulse-Amplitude, and then Amplitude to measure the amplitude on the flat part of the long pulse. 12. Right click on the measurement readout, and select Show Statistics and Show Annotations from the pop-up menu. 13.
  • Page 48 Adjustment procedures 28. Move the 1 m high-bandwidth cable from the SDI 1B output to the SDI 2A output. 29. Move the 50 Ω cable from the SDI 1 A output to SDI 2 B. 30. Press the left (◄) or right (►) arrow buttons to select Channel 2: Top to adjust the Signal 2A output.

  • Page 49: Maintenance

    NOTE. Contact your local Tektronix representative for information on where to return your instrument if it requires repair during the warranty period. This section contains information needed to safely and effectively service the SPG8000 generator to the module level.
  • Page 50 SPG8000 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 51 Maintenance Electrostatic damage This instrument contains electrical components that are susceptible to damage from electrostatic discharge. Static voltages of 1 kV to 30 kV are common in prevention unprotected environments. Before servicing this product, read the General Safety Summary and the Service Safety Summary at the front of the manual, as well as the following ESD information.

  • Page 52: 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 53: Table 7: External Inspection Checklist

    Maintenance Inspection – exterior. Inspect the outside of the instrument for damage, wear, and missing parts, using the following table as a guide. Immediately repair defects that could cause personal injury or lead to further damage to the instrument. Table 7: External inspection checklist Item Inspect for Repair action...
  • Page 54 Maintenance Table 8: Internal inspection checklist (cont.) Item Inspect for Repair action Solder connections Cold solder or rosin joints. Resolder joint and clean with isopropyl alcohol. Capacitors Damaged or leaking cases. Remove and replace Corroded solder on leads or damaged circuit board. terminals.

  • Page 55: Remove And Replace Procedures

    Maintenance Remove and replace procedures This section contains procedures for removal and installation of customer-replaceable modules in the SPG8000. Any electrical or mechanical module, assembly, or part listed in the Replaceable parts list section of this manual is a module. Preparation.

  • Page 56: Figure 12: Instrument Orientation

    Maintenance Required equipment. Many of the modules in the SPG8000 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 57: Figure 13: Module Locator Diagram

    Maintenance The following figure shows the location of the replaceable modules in the SPG8000. Figure 13: Module locator diagram SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 58: Figure 14: Cable Connections 1 Of 3

    Maintenance Interconnect illustrations The following illustrations and tables show where to reconnect cables. Table 10: Cable connections table 1 of 3 Figure number Rear-panel connector Connects to 14- 1 SILENCE J440 on AG board 14-2 WORD CLK J9 on Genlock/Black board 14-3 AES 5 &...

  • Page 59: Figure 15: Cable Connections 2 Of 3

    Maintenance Table 11: Cable connections table 2 of 3 From Figure Figure number Description number Description 15-1 Breakout board J1 16-2 Power combiner board JR101 15-2 Breakout board J2 16-4 Main board J703 Breakout board J3 15-3 16-4 Genlock/Black board J10 15-5 Rear-panel Light pipe header for the Antenna power...

  • Page 60: Figure 16: Cable Connections 3 Of 3

    Maintenance Table 12: Cable connections table 3 of 3 From Figure Figure number Description number Description 16-1 Power combiner board J101 14-1 Fan cable from fan 16-2 Power combiner board JR101 15-1 Breakout board J1 16-3 Main board J711 (See Front panel board Figure 18.) 16-4...
  • Page 61 Maintenance Locking line cord 1. You need no equipment to perform this removal procedure. Locate the line cord in the locator diagram. (See Figure 13.) 2. Set the SPG8000 so the instrument bottom is down on the work surface and the rear is facing you.

  • Page 62: Figure 17: Removing The Top Cover

    Maintenance Top cover CAUTION. When handling circuit boards, follow the ESD instructions. (See page 35, Electrostatic damage prevention.) 1. Set the SPG8000 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 63 Maintenance Rear panel The following steps identify which cables need to be disconnected and which nuts, washers, and screws need to be removed before removing the rear panel. Some of the rear-panel connectors will remain installed in the rear panel. 1.
  • Page 64 Maintenance Main fan To remove and replace the chassis fan, follow these instructions: 1. Locate the chassis fan in the locator diagram. (See Figure 13 on page 41.) 2. Remove the instrument rear panel. (See page 47, Rear panel.) 3. Remove the two screws that attach the fan to the fan bracket and slide the fan out of the bracket.

  • Page 65: Figure 18: Removing The Front Panel Assembly

    Maintenance Figure 18: Removing the front panel assembly SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 66: Figure 19: Disassembling The Front Panel Assembly

    Maintenance Front panel subassemblies 1. Remove the Front Panel assembly. (See page 48, Front panel assembly.) 2. Set the Front Panel assembly so that you can access the screws on the back side of the assembly. CAUTION. To prevent dirt from being trapped between the LCD display and the front cover, keep the back of the Lexan cover clean while you are disassembling the Front Panel assembly.
  • Page 67 Maintenance 4. Remove the Front Panel Keyboard as follows.(See Figure 19.) a. Use a screwdriver with a #2 Phillips tip to remove the four screws securing the keyboard to the front frame. b. Lift the board away. c. To remove the keypad from the board, carefully pull up on the keypad. There are eight tails from the keypad that extend through to the back side of the board.
  • Page 68 Maintenance Power supply There can be one or two power supplies installed in the SPG8000. 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 69: Figure 20: Removing The Power Supply

    Maintenance Figure 20: Removing the power supply Power Combiner board The power combiner board combines the power from the two power supplies and provides connections for the fan and Ethernet. 1. Remove all power supply modules from the instrument. (See page 52, Power supply.) The power supply modules will disconnect from the Power Combiner board.

  • Page 70: Figure 21: Removing The Power Combiner Board

    Maintenance 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 42, Interconnect illustrations.) Figure 21: Removing the Power Combiner board SPG8000 Master Sync / Clock Reference Generator Service Manual...
  • Page 71 Maintenance Main board 1. Locate the Main board in the locator diagram. (See Figure 13.) Refer also to the exploded view diagram for more details. (See Figure 29.) 2. Remove the Front Panel assembly. This is required because of the USB connector on the Main board.
  • Page 72 Maintenance Option BG board You can remove and replace the Option BG board, the mounting plate under the board, and the associated rear-panel connectors. To remove the Option BG board. 1. Remove the rear panel. (See page 47, Rear panel.) 2.
  • Page 73 Maintenance To remove an Option BG rear-panel connector. All of the rear-panel connectors associated with the Option BG are replaceable. These connectors are labeled: BLACK 4, BLACK 5, CMPST1, and CMPST2. To replace one of these connectors, follow these steps: 1.
  • Page 74 Maintenance To replace the Option AG board. 1. Make sure that your replacement board is installed on the mounting plate. 2. Place the replacement assembly into a position that is close to where it will connect to the Main board. See the Module locator diagram. (See Figure 13.) 3.
  • Page 75 Maintenance Genlock/Black board and You can replace the Genlock/Black board, the Option GPS Receiver board, the GPS ANT rear-panel connector, the light pipe connector, and the Genlock/Black Option GPS board board mounting plate. The high-speed BLACK 1, BLACK 2, and BLACK 3 connectors are not replaceable.
  • Page 76 Maintenance 5. Replace the rear panel and all nuts and locking washers that were removed from the rear panel. 6. Connect all cables that were disconnected. Refer to Interconnect illustrations. (See page 42, Interconnect illustrations.) To remove and replace the Option GPS Receiver board. To remove and replace the Option GPS Receiver board, follow these instructions.
  • Page 77 Maintenance To remove and replace the light-pipe connector. To replace the light-pipe board connector, proceed as follows: CAUTION. Do not remove the light pipe board connector from the board unless you have a replacement board connector available. Removing the light pipe board connector damages it, so it cannot be reused.
  • Page 78 Maintenance Option SDI board and You can remove and replace the Option SDI board, the two Option SDI Output boards, and the Option SDI board mounting plate. The four gold rear-panel BNCs Option SDI Output boards attached to the Option SDI board are not replaceable. To remove and replace the Option SDI Output boards.
  • Page 79 Maintenance To remove and replace the mounting plate or heat sink. Follow this procedure to remove and replace a heat sink or mounting plate for the Option SDI. NOTE. You can reuse a removed heat sink, but you must use a new gap pad. 1.
  • Page 80 Maintenance To replace the Option SDI board. 1. Verify that the Option SDI board is installed on the metal mounting plate. 2. Starting with the rear panel removed, slide the replacement Option SDI assembly into a position that is close to where it will connect to the Main board, as shown in the module locator diagram.

  • Page 81: Troubleshooting

    Maintenance Troubleshooting This section contains information about how to troubleshoot instrument problems in order to isolate faulty modules in the SPG8000. Diagnostics and When troubleshooting an unknown instrument problem, perform the performance verification procedures for the SPG8000 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 82 Maintenance To power up in factory Putting the instrument into factory mode allows access to calibration, and it allows the module to show in the menus even if it fails the POST routine. When mode you perform a procedure that requires you to you restart the instrument in factory mode, proceed as follows: 1.
  • Page 83 Maintenance CALIBRATION This readout represents the correction applied to the oven oscillator clock to calibrate the frequency when in internal mode. The integer value is the tuning control word to make this happen. An example readout is “0.59e-6”. This is the fractional correction being applied, which in this case this is 0.59 parts in 1 million.

  • Page 84: Table 13: Slot I/O Test Error Codes

    Maintenance Table 13: Slot I/O test error codes Error code Description Data Bus Test 1 Data Bus Test 2 Data Bus Test 3 Data Bus Test 4 Data Bus Test 5 Data Bus Test 6 Address Bus Test 1 Address Bus Test 2 Address Bus Test 3 MCLK Test ACLK Test...

  • Page 85: Table 14: Spg8000 System Diagnostics

    Maintenance SPG8000 diagnostics The following table lists the diagnostics that are available in the SPG8000. (See Table 14.) 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 86 Maintenance Table 14: SPG8000 system diagnostics (cont.) RTC Battery (◄ / ►) REF BRD 1: +5 V and +8 V (◄ / ►) REF BRD 2: –5 V relative to +3.3 V (◄ / ►) SDI Bd 1: 1.2 V & 1.2 VA checks (◄ / ►) SDI Bd 2: 3.3 V &...

  • Page 87: Table 15: Spg8000 Troubleshooting Procedures

    Maintenance SPG8000 troubleshooting The following table lists some common problems and tells how to troubleshoot them. Table 15: SPG8000 troubleshooting procedures Problem Troubleshooting steps No power or lights Check the main power supply as follows: 1. Remove instrument top cover. 2.

  • Page 88: Figure 22: Main Board (View From Top)

    Maintenance Table 15: SPG8000 troubleshooting procedures (cont.) Problem Troubleshooting steps Keyboard/front panel problems On power up, the front panel buttons and indicators should light up in groups of 3 to 5. This sequence will repeat about 4 times while waiting for the instrument to boot. The flashing sequence is controlled by the front panel, only power is required from the Main board.

  • Page 89: Table 16: Equipment Required To Troubleshoot The Option Ag

    Maintenance Option AG troubleshooting This section contains instructions and procedures for troubleshooting the Option AG. These procedures will help you decide whether it is necessary to replace your module. If the SPG8000 does not boot up or if the display is not working, go to the beginning of the troubleshooting section.

  • Page 90: Figure 23: Option Ag Troubleshooting Procedure

    Maintenance Figure 23: Option AG troubleshooting procedure SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 91: Table 17: Equipment Required For Option Bg Troubleshooting

    Maintenance Option BG troubleshooting This section contains instructions and procedures for troubleshooting the Option BG. These procedures will help you decide whether it is necessary to replace your Option BG module. If the SPG8000 does not boot up or if the display is not working, go to the beginning of the troubleshooting section.

  • Page 92: Figure 24: Option Bg Troubleshooting Procedure

    Maintenance Figure 24: Option BG troubleshooting procedure SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 93: Table 18: Equipment Required For Troubleshooting The Genlock/Black Generator Module

    Used to check power supply voltages and Fluke 87 or equivalent fuses 75 Ω BNC cables (4) Length: 42 inches, used to connect the Tektronix part number 012-0074-00 instruments ROHS compliant ESD safe soldering Any soldering must be ROHS compliant workstation...

  • Page 94: Table 19: General Problems - Genlock/Black Board

    Maintenance General problems. General problems and actions to follow are shown in the following table. (See Table 19.) Table 19: General problems – Genlock/Black board Problem Actions Fails Power On Self Test Run power on test procedure. (See page 89, Power on self test for Option GPS (POST).) (POST) Check for current software.

  • Page 95: Table 20: Post Error Codes For The Genlock/Black Module

    3. Read the firmware version. 4. If the version is not V 1.3 or later, install current software. The latest software is available on the Web at www.tektronix.com/downloads. Set to factory defaults (Genlock/Black). The SPG8000 under test and the SPG8000 reference unit must be configured correctly to avoid problems while troubleshooting.
  • Page 96 Maintenance 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 SPG8000 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 97: Figure 25: Genlock/Black Generator Module Power Supply Test

    Maintenance Test power supply. There are two types of power supplies in the Genlock/Black circuitry: those provided by the instrument and those that are derived by the Genlock/Black generator. The supplies that are provided by the instrument are fused on the Genlock/Black board; they have an 'M' at the start of the supply name.

  • Page 98: Table 21: Power Supply Test Points

    Maintenance Table 21: Power supply test points Test point Supply name Limits Notes Mainframe supplies TP111 M +5 VD +4.75 V to +5.25 V Main board Fused 5 V digital supply, fuse F132 TP211 M +3.3 V +3.1 V to +3.5 V Main board Fused 3.3 V digital supply, fuse F131 –4.75 V to –5.25 V...

  • Page 99: Figure 26: Genlock/Black Generator Board Voltage Test Point And Fuse Locations

    Maintenance Figure 26: Genlock/Black generator board voltage test point and fuse locations SPG8000 Master Sync / Clock Reference Generator Service Manual...
  • Page 100 Maintenance Test internal mode oven. Perform this procedure to determine if the oven oscillator is working and within specifications. 1. Set the instrument to internal reference mode as follows: a. Press the REF button. b. Press the up (▲) or down (▼) arrow buttons to select SOURCE. c.
  • Page 101 Maintenance ADC bus diagnostics. Perform this procedure to determine if all the bits on the ADC are properly connected to the FPGA logic. 1. Connect the BLACK 1 output to the REF IN connector. Make sure the loop through is unconnected and unterminated. 2.
  • Page 102 Maintenance Lock to GPS or GLONASS to set leap seconds. NOTE. Leap seconds must have been set once in order for the LTC and VITC inputs to work. Leap seconds can only be set using the GPS or GLONASS input. 1.

  • Page 103: Table 22: Equipment Required For Troubleshooting The Option Gps Module

    Equipment Requirement Suggested equipment SPG8000 with an Option GPS module Reference instrument in addition to DUT Tektronix SPG8000 with OPT GPS installed Tektronix WFM7120 Waveform monitor Used to verify correct GPS or GLONASS phase lock operation. Must be able to...

  • Page 104: Table 23: General Problems - Option Gps

    Maintenance General problems. General problems and actions to follow are shown in the following table. (See Table 19.) Table 23: General problems – Option GPS Problem Actions Option GPS does not lock Run power on test procedure. (See page 89, Power on self test for Option GPS (POST).) Option GPS does not acquire Check DC antenna power voltage.

  • Page 105: Table 24: Post Error Code For Option Gps

    3. Read the firmware version. 4. If the version is not V 1.3 or later, install current software. The latest software is available on the Web at www.tektronix.com/downloads. Set to factory defaults (Option GPS). The SPG8000 under test and the SPG8000 unit must be configured to use the GPS or GLONASS signal correctly, to...
  • Page 106 Maintenance Check diagnostic reported values. The Option GPS module detects the temperature. Check the following (see the SPG8000 Technical Reference manual for more information on these diagnostics). Temperature: Temperature is detected on the Option GPS Receiver board. This temperature is normally about 15 °C above ambient temperature. If the temperature is very high or low, check that the fan is operating, the installation clearances are correct, and that all cables in the Option GPS module are connected properly.
  • Page 107 Maintenance 6. If the SPG8000 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 108 Maintenance Acquire new position. Option GPS requires a valid 3D GPS or GLONASS position to properly lock to GPS or GLONASS time. If the GPS or GLONASS antenna is moved, a new position must be acquired for correct time information. There must be a good antenna feed, and the GPS receiver must be locked to at least four GPS or GLONASS satellites.

  • Page 109: Table 25: Equipment Required To Troubleshoot The Option Sdi

    Used to check power supply voltages and Fluke 87 or equivalent fuses 75 Ω BNC cables (2) Length: 42 inches, used to connect the Tektronix part number 012-0074-00 instruments 50 Ω BNC cable (1) Length: 43 inches, used to test trigger Tektronix part number 012–0057–01...

  • Page 110: Table 26: Option Sdi Troubleshooting

    Maintenance General problems and actions to follow are shown in the following table. Table 26: Option SDI troubleshooting Problem Actions Fails Power On Self Test Run power on test procedure. (POST) Run power on in Factory mode test procedure. SDI does not appear in menu Check for current software.

  • Page 111: Table 27: Post Error Codes For Option Sdi

    Maintenance Power on self test. When you first apply power to the instrument, it runs a Power On Self Test (POST). If an error is encountered during this POST, the display will show one of several error codes. (See Table 27.) Watch the display during boot up and note any error codes.
  • Page 112 Maintenance Check the SDI diagnostics. There are several internally detected physical measurements, which are reported by the Option SDI diagnostics. Some of the diagnostic tests are available only in factory mode. Perform the following procedure to access the Option SDI diagnostics: 1.
  • Page 113 3. Read the firmware version. 4. If the version is not V 1.3 or later, install current software. The latest software is available on the Web at www.tektronix.com/downloads. Verify the configuration. To eliminate the configuration of the SPG8000 as the source of a problem, reset the instrument to the factory default settings: 1.

  • Page 114: Table 28: Option Sdi Module Factory Default Settings

    Maintenance c. Press the up (▲) or down (▼) arrow button to select RECALL. d. Press the left (◄) or right (►) arrow button to select Factory Default. e. Press the ENTER button to reset the instrument to the factory default settings.
  • Page 115 Maintenance Table 28: Option SDI module factory default settings (cont.) Menu item name Settings OVERLAY : LOGO Status Disable Tektronix_logo_500x125.bmp Source NOTE. The default logo is the "first" file in the SDI7/LOGO directory, as sorted by the date of the logo file (oldest first). If the factory-provided logo files are installed, the default logo is “Tektronix_logo_500x125.bmp.”...
  • Page 116 Maintenance Table 28: Option SDI module factory default settings (cont.) Menu item name Settings AUDIO (EMBEDDED) Status (Level A) Disable Group 1–4 Status (Level B) Disable Group 1–4 Link A Disable Group 1–4 Link B Channel Active Status 1000 Frequency –20 dBFS Amplitude Audio Click...
  • Page 117 Maintenance Table 28: Option SDI module factory default settings (cont.) Menu item name Settings ANC PAYLOAD Output Disable Parity Automatic 0x101 SDID 0x200 0x101 0x200 0x200 Auto-Calculate CS Enable Line Field 1, Line: Field 2, Line: 1928 Start Sample Video Channel Luma Link Location Link A...

  • Page 118: Figure 27: Sdi Power Supply Test Points

    Maintenance Check the power supplies. Two of the power supplies require manual verification. 1. Remove the SPG8000 top cover. (See page 46, 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 119 Maintenance 4. Verify that all four SDI signal outputs (SDI 1A, SDI 1B, SDI 2A, and SDI 2B) are set to provide a 59.94, 1080i format, 100% color bar signal (factory default signal). 5. Check the DDS0:Phase and DDS1:Phase lock status, as described in the Module Diagnostics.
  • Page 120 NOTE. For information on how to transfer or install user files to your SPG8000, refer to the Quick Start User Manual, Tektronix part number 071-3080-XX. 2. Configure the Option SDI to output a 1080i 59.94 format HD signal. 3. Press the SDI button to display SDI 1.

  • Page 121: Repackaging Instructions

    Repackaging instructions Use the following instructions to prepare your instrument for shipment to a Tektronix, Inc., Service Center: 1. Attach a tag to the instrument showing: the owner, complete address and phone number of someone at your firm who can be contacted, the instrument serial number, and a description of the required service.
  • Page 122 Maintenance SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 123: Replaceable Parts

    For most parts in this manual, you will find the letters XX in place of the revision level number. When you order parts, Tektronix will provide you with the most current part for your product type, serial number, and modification (if applicable). At the time of your order, Tektronix will determine the part number revision level needed for your product, based on the information you provide.

  • Page 124: Table 29: 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 125: Replaceable Parts Lists

    Replaceable parts Replaceable parts lists The following tables list the replaceable parts for the SPG8000. Table 30: Main instrument replaceable parts Fig. & index Tektronix part number number Name & description 28-1 211-1194-01 SCREW, MACHINE; M3 X 6MM, FLH BLACK, CROSS REC 200-5248-00 CABINET;...

  • Page 126: Table 31: Chassis Assembly Replaceable Parts

    Replaceable parts Table 31: Chassis assembly replaceable parts Fig. & index Tektronix number part number Name & description 29-1 441-2691-00 MAIN CHASSIS ASSY 863-0648-00 CIRCUIT BD ASSY; MAIN 211-A245-01 SCREW, MACHINE; M3 X 6 MM L, PNH, STL, NI PL, CROSS REC, W/NUT & LOCK WASHER 344-0629-00 MOUNT, CLIP;...

  • Page 127: Figure 29: Chassis Assembly Exploded View

    Replaceable parts Figure 29: Chassis assembly exploded view SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 128: Table 32: Front Panel Assembly Replaceable Parts

    Replaceable parts Table 32: Front panel assembly replaceable parts Fig. & index Tektronix part Serial no. Serial no. number number effective discont'd Name & description 650-5546-00 FRONT PANEL ASSY 367-0530-00 HANDLE, BOW; AL, 1.0 X 1.25, STAIN FINISH, SAFETY CONTROLLED...

  • Page 129: Figure 30: Front Panel Assembly Exploded View

    Replaceable parts Figure 30: Front panel assembly exploded view SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 130: Table 33: Option Ag - Replaceable Parts

    Replaceable parts Table 33: Option AG – replaceable parts Fig. & index Tektronix part Module no. Module no. number number effective discont'd Name & description 31-1 441-2696-00 MOUNTING PLATE, OPTION AG 878-0729-00 CKT BD SUBASSY; OPTION AG, AUDIO GENERATOR 211-A245-01 SCREW, MACHINE;...

  • Page 131: Figure 31: Option Ag Exploded View

    Replaceable parts Figure 31: Option AG exploded view SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 132: Figure 32: Option Bg Exploded View

    Replaceable parts Table 34: Option BG – replaceable parts Fig. & index Tektronix Serial no. Serial no. number part number effective discont'd Name & description 32-1 441-2693-00 MOUNTING PLATE; OPTION BG 878-0728-00 CKT BD ASSY; OPTION BG 211-A245-01 SCREW, MACHINE; M3 X 6 MM L, PNH, STL, NI PL, CROSS REC, W/PLAIN &...

  • Page 133: Table 35: Genlock/Black Board And Option Gps Receiver Board - Replaceable Parts

    Replaceable parts Table 35: Genlock/Black board and Option GPS Receiver board – replaceable parts Fig. & index Tektronix Serial no. Serial no. number part number effective discont'd Name & description 33-1 441-2694-00 MOUNTING PLATE: GENLOCK/BLACK GENERATOR BOARD 878-0737-00 CIRCUIT BD ASSY; GENLOCK/BLACK GENERATOR 211-A245-01 SCREW, MACHINE;...

  • Page 134: Figure 33: Genlock/Black Generator Board And Option Gps Receiver Board Exploded View

    Replaceable parts Figure 33: Genlock/Black generator board and Option GPS Receiver board exploded view SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 135: Table 36: Option Sdi - Replaceable Parts

    Replaceable parts Table 36: Option SDI – replaceable parts Fig. & index Tektronix Serial no. Serial no. number part number effective discont'd Name & description 34–1 441-2695-00 MOUNTING PLATE; SDI 878-0580-00 CIRCUIT BD ASSY; SDI 211-A245-01 SCREW, MACHINE; M3 X 6 MM L, PNH, STL, NI PL, CROSS REC, W/PLAIN &...

  • Page 136: Figure 34: Option Sdi Board And Option Sdi Output Board Exploded View

    Replaceable parts Figure 34: Option SDI board and Option SDI Output board exploded view SPG8000 Master Sync / Clock Reference Generator Service Manual...

  • Page 137: Table 37: Standard And Optional Accessories For The Spg8000

    Replaceable parts Table 37: Standard and optional accessories for the SPG8000 Component Tektronix Serial no. Serial no. number part number effective discont'd Name & description STANDARD ACCESSORIES 351-1137-00 RACK, KIT, RAILS 063-4474-XX DVD, SOFTWARE LIBRARY & DOCUMENTATION 071-3080-XX QUICK START USER MANUAL, ENGLISH...
  • Page 138 Replaceable parts SPG8000 Master Sync / Clock Reference Generator Service Manual...

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