Sony Tektronix WFM 1125 Service Manual
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Sony Tektronix WFM 1125 Service Manual

Sony Tektronix WFM 1125 Service Manual

Digital television waveform monitor option 0a / 0b / 0c / 0d
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Service Manual
WFM 1125
Digital Television Waveform Monitor
Option 0A/0B/0C/0D
071-0455-04
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

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  • Page 1 Service Manual WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D 071-0455-04 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
  • Page 2 Specifications and price change privileges reserved. Printed in Japan Sony/Tektronix Corporation, P.O. Box 5209, Tokyo Int’l, Tokyo 100–31 Japan Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 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 a product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.
  • Page 5 Service Assurance If you have not already purchased Service Assurance for this product, you may do so at any time during the product’s warranty period. Service Assurance provides Repair Protection and Calibration Services to meet your needs. Repair Protection extends priority repair services beyond the product’s warranty period; you may purchase up to three years of Repair Protection.
  • Page 7 Table of Contents General Safety Summary ........Service Safety Summary .
  • Page 8 Table of Contents Performance Verification Performance Verification ........4–1 Before Running the Performance Tests .

  • Page 9: Table Of Contents

    Table of Contents List of Figures Figure 2–1: Dimensions of the 1700F00 plain cabinet ... . . 2–4 Figure 2–2: 1700F02 portable cabinet ......2–5 Figure 2–3: Rear view of the waveform monitor in a 1700F02 cabinet...
  • Page 10 Table of Contents List of Tables Table 1–1: Vertical deflection system ......1–3 Table 1–2: Horizontal deflection system .
  • Page 11 General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system.
  • Page 12 General Safety Summary Symbols and Terms 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 13 Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.
  • Page 14 Service Safety Summary viii WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 15 Preface This document supports serial number J310000 and above. This preface contains information needed to properly use this document to service the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D, as well as general information critical to safe and effective servicing of this waveform monitor.
  • Page 16 Preface H Electrical Parts List contains a statement referring you to Mechanical Replaceable Parts, where both electrical and mechanical modules are listed. H Diagrams contains a block diagram and an interconnection diagram useful for isolating failed modules. H Mechanical Parts List includes a table of all replaceable modules, their descriptions, and their Tektronix part numbers, as well as the exploded view.
  • Page 17 Introduction Service Strategy STOP. Throughout this document, any field-replaceable component, assembly, or part of this waveform monitor is referred to generically as a module. This document contains all the information needed for periodic maintenance of the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. (Examples of such information are procedures for checking performance and for readjustment.) Further, it contains all information for corrective maintenance down to the module level.
  • Page 18 Introduction H A single repair and/or adjustment. H Calibrations using equipment and procedures that meet the traceability standards specific to the local area. H Annual maintenance agreements that provide for either calibration and repair or calibration only of the waveform monitor. Of these services, the annual maintenance agreement offers a particularly cost-effective approach to service for many owners of the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D.
  • Page 19 Introduction Before You Begin This document is for servicing the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. To prevent injury to yourself or damage to the waveform monitor, do the following tasks before you attempt service: H Be sure you are a qualified service person. H Read the Safety Summary found at the beginning of this document.
  • Page 20 Introduction WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 21 Specifications...
  • Page 23 Product Description The WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D Option 0A/0B/0C/0D measures and displays HDTV serial digital signals. The waveform monitor is a fully digital waveform monitor with a variety of standard measurement modes displayed on an internal VGA display. An external VGA display output is also provided.
  • Page 24 Product Description H AES/EBU digital audio output (except for 720/60p, 720/59.94p, 1080/24p, and 1080/23.98p) H Y, P picture monitor analog output from selected serial digital signal input WFM 1125 Option 0A/0B/0C/0D Service Manual...

  • Page 25: Table 1-1: Vertical Deflection System

    Specifications Tables 1–1 through 1–20 list the electrical specifications for the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D Option 0A/0B/0C/0D. Performance requirements are generally quantitative and can be tested by qualified service personnel. Reference information describes useful operating parameters and typical characteristics and performance. The performance requirements listed in the electrical specification portion of these specifications apply over an ambient temperature range of 0°...

  • Page 26: Table 1-2: Horizontal Deflection System

    Specifications Table 1-2: Horizontal deflection system Characteristic Performance requirements Reference information Sweep Rate When there is no signal input, the message No Signal" appears and no waveform is displayed. Option 0A or 240M/274M format mode of Option 0C 1 Line 2.5 ms/div, 0.1 ms/div (MAG ON) Refreshed 1/4 line rate of applied video sync.
  • Page 27 Specifications Table 1-2: Horizontal deflection system (Cont.) Characteristic Performance requirements Reference information Option 0D (Interlace mode) 1 Line 3.0 ms/div, 0.1 ms/div (MAG ON) Refreshed 1/4 line rate of applied video sync. 2 Lines 6.0 ms/div, 0.4 ms/div (MAG ON) : 1035/60i, 1035/59.94i, 1080/60i, 1080/59.94i 6.0 ms/div, 1.0 ms/div (MAG ON) : 1125/50i Refreshed 1/8 line rate of applied video sync.
  • Page 28 Specifications Table 1-2: Horizontal deflection system (Cont.) Characteristic Performance requirements Reference information Option 0D (Progressive mode) 1 Line 2.0 ms/div, 0.1 ms/div (MAG ON) : 720/60p, 720/59.94p 3.0 ms/div, 0.1 ms/div (MAG ON) : 1080/24p, 1080/23.98p Refreshed 1/17 line rate of applied video sync : 720/60p, 720/59.94p Refreshed 1/4 line rate of applied video sync : 1080/24p, 1080/23.98p...

  • Page 29: Table 1-3: Serial Digital Video Interface

    Specifications Table 1-3: Serial digital video interface Characteristic Performance requirements Reference information Format 1.4835 to 1.485 Gbps, complying with BTA S004A, SMAPTE 292M. Serial Input Impedance 75 W Unbalanced Monitor Output 800 mVp p ±10 %. 800 mVp p ±10 % Level Impedance 75 W Unbalanced...

  • Page 30: Table 1-5: Stripped Aes/Ebu Digital Audio Output 1

    Specifications 1 (Cont.) Table 1-5: Stripped AES/EBU digital audio output Characteristic Performance requirements Reference information Output Channel CH A:1/2, 3/4, 5/6, 7/8 CH B:1/2, 3/4, 5/6, 7/8 The same channel is not selected on CHA and CHB at the same time. Output Control If the Audio Data Packet does not exist in the serial signal, the corresponding output is...

  • Page 31: Table 1-8: Field Rate Display

    Specifications Table 1-8: Field rate display Characteristic Performance requirements Reference information Target Signal Selected Reference Signal Display Contents Internal Detected Field Rate 60.00 Hz 59.97 Hz to 60.03 Hz 59.94 Hz 59.91 Hz to 59.97 Hz ??.?? Hz u60.03 Hz or t59.91 Hz (Display Missing Reference") Display Contents (Interlace mode of Internal Detected Field Rate...

  • Page 32: Table 1-9: Rbg Transcoder

    Specifications Table 1-9: RBG transcoder Characteristic Performance requirements Reference information Matrix coefficient SMPTE240M Gi = Yi - 0.2266 P i - 0.4766 P Bi = Yi + 1.826 P Ri = Yi + 1.576 P SMPTE274M, SMPTE296M Gi = Yi - 0.1870 P i- 0.4678 P Bi = Yi + 1.8558 P Ri = Yi + 1.575 P...

  • Page 33: Table 1-12: Bowtie Mode

    Specifications Table 1-12: Bowtie mode Characteristic Performance requirements Reference information Common Mode Rejection Ratio u 44 dB to 15 MHz Amplitude Error t 0.25 % Internal Timing Match Zero error (co sited data) Table 1-13: Status display mode Characteristic Performance requirements Reference information Display Capability 4000 words...

  • Page 34: Table 1-16: Calculation Dynamic Range

    Specifications Table 1-16: Calculation dynamic range Characteristic Performance requirements Reference information Resolution Mode With 10 bit calculation: Y, R, G, B: -50 to 760 mV, -390 to +390 mV. Waveform may have some distortion when input data in analog level goes out of above ranges.

  • Page 35: Table 1-20: Installation Requirements

    Specifications Table 1-19: AC power source (Cont.) Characteristic Performance requirements Reference information Peak Inrush Current 10 A Supply Connection Detachable cord set Per EN 55103 1 Annex B Table 1-20: Installation requirements Characteristic Performance requirements Reference information Heat Dissipation Maximum Power 90 W max, 1.0 A rms at 50 Hz Maximum Dissipation Voltage 90 V with 5 % clipping...

  • Page 36: Table 1-21: Environmental Characteristics

    Specifications Environmental Characteristics Table 1-21: Environmental characteristics Characteristic Standard and reference information Temperature Operating 0° to +40° C Non operating -20° to +60° C Altitude Operating 4,500 m Maximum operating temperature decreases 1° C each 300 m above 1,500 km. Non operating 15,000 m Relative humidity...

  • Page 37: Table 1-22: Physical Characteristics

    Specifications Physical Characteristics Table 1-22: Physical characteristics Characteristics Descriptions Dimensions Height 133 mm Width 216 mm Depth 432 mm Weight Approximately 6.0 kg Shipping Approximately 8.3 kg Safety and EMI Table 1-23: Certifications and compliances Category Standards or description EC Declaration of Conformity - Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
  • Page 38 Specifications Table 1-23: Certifications and compliances (Cont.) Category Standards or description EC Declaration of Conformity - Compliance was demonstrated to the following specification as listed in the Official Journal of the Low Voltage European Union: Low Voltage Directive 73/23/EEC, amended by 93/69/EEC EN 61010 1:1993 Safety requirements for electrical equipment for measurement control and laboratory use.
  • Page 39 Operating Information...
  • Page 41 Operating Information This section is divided into the following three subsections: H Preparation for Use. Describes the installation, environmental requirements, information of how to power on or off, etc. H Using the Menu. Describes the general menu operating information and DIAG/CAL menu structure.
  • Page 42 Preparation for Use WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 43 Preparation for Use This subsection presents information you need to set up your WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. This subsection contains the following information: H Installation. H Operating Environment. H Applying and Interrupting Power. H Repacking. Installation This section provides instructions for installing the waveform monitor into a standard rack or one of the optional cases.

  • Page 44: Figure 2-1: Dimensions Of The 1700F00 Plain Cabinet

    Preparation for Use 21.0 cm (8.25 in) 42.7 cm (16.2 in) 13.0 cm (5.1 in) Figure 2-1: Dimensions of the 1700F00 plain cabinet WARNING. To meet EMI emission and safety specifications, the waveform monitor must be installed in a Tektronix 1700F00, 1700F02, or 1700F05 enclosure.

  • Page 45: Figure 2-2: 1700F02 Portable Cabinet

    Preparation for Use 21 cm (8.25 in) 42.7 cm (16.2 in) 13 cm (5.1 in) Figure 2-2: 1700F02 portable cabinet Cabinet Installation. Secure the waveform monitor in a cabinet using two Trox T-15 screws. Figure 2–3 shows the location of these screws on the rear panel. CAUTION.

  • Page 46: Figure 2-3: Rear View Of The Waveform Monitor In A 1700F02 Cabinet

    Preparation for Use Cabinet securing screws Figure 2-3: Rear view of the waveform monitor in a 1700F02 cabinet Rack Adapter Installation. The optional 1700F05 side-by-side rack adapter, shown in Figure 2–4, consists of two attached cabinets. Use it to mount the waveform monitor and another half-rack width instrument, such as an analog component monitor, in a standard 19-inch rack.

  • Page 47: Figure 2-4: The 1700F05 Rack Cabinet Holds Two Instruments

    Preparation for Use You can adjust the rack adapter so that the waveform monitor is aligned with other equipment in the rack. See Figure 2–4. 48.2 cm (19 in) 13.2 cm (5.3 in) Mounting holes 43.9 cm Mounting (17.3 in) holes Front panel alignment holes...

  • Page 48: Figure 2-5: 1700F05 Cabinet Showing Utility Drawer And Blank Panel

    Preparation for Use If you are using only one side of the rack adapter, insert a blank panel (1700F06) or an accessory drawer (1700F07) in the unused section to improve airflow and appearance. Figure 2–5 shows the blank panel and drawer. 1700F05 side by side rack adapter...

  • Page 49: Table 2-1: Power-Cord Conductor Identification

    Preparation for Use Supplying Operating Power NOTE. Read all information and heed all warnings in this subsection before connecting the waveform monitor to a power source. WARNING. AC POWER SOURCE AND CONNECTION. The waveform monitor operates from a single-phase power source. It has a three-wire power cord and two-pole, three-terminal grounding type plug.
  • Page 50 Preparation for Use Operating Voltage This waveform monitor operates with any line voltage from 90 to 240 VAC with any line frequency from 48 to 63 Hz. No fuse is provided with this waveform monitor. Memory Backup Power The CPU module with on-board battery allows the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D to retain some types of data upon loss of the AC power source.

  • Page 51: Table 2-2: Effects Of Corrupted Data

    Preparation for Use Applying and Interrupting Power Consider the following information when you power on or power off the instrument, or when power is interrupted due to an external power failure. Power On At power on, the waveform monitor does not run the self check. The waveform monitor has the internal diagnostic routines to allow you to isolate faulty modules.
  • Page 52 Preparation for Use Repackaging Instructions Use a corrugated cardboard shipping carton having a test strength of at least 275 pounds and with an inside dimension at least six inches greater than the instrument dimensions. If the instrument is being shipped to a Tektronix Service Center, enclose the following information: the owner’s address, name and phone number of a contact person, type and serial number of the instrument, reason for returning, and a complete description of the service required.

  • Page 53: Figure 2-6: Elements Of The Wfm 1125 Menu Controls

    Using the Menus You can set most functions with either context sensitive bezel button menus or general configuration menus. The following subsections outline and describe how to make selections from these menus. Figure 2–6 shows the buttons and knob used for menu selection. INTEN/MENU button SELECT button and knob Display menus with...
  • Page 54 Using the Menu To quit the menu mode, press the INTEN/MENU button again. For example, turn the GAMUT on by stepping through the menus as follows: 1. Press and hold the INTEN/MENU button to display the Configure menu. 2. Turn the SELECT knob until GAMUT highlights. 3.

  • Page 55: Figure 2-7: Diag/Cal Menu Structure

    Using the Menu DIAG / CAL DIAG / CAL EXECUTE DIAG DIAG INTEN/MENU MEMORY DISPLAY DISPLAY button to exit GRID KEY/KNOB CIRCLE X/Y RAM GRADIATION HK102/FIFO VERSION WHITE STANDBY button to exit STANDBY button Figure 2-7: DIAG/CAL menu structure To select DIAG/CAL menu item, press the corresponding bezel button, and press the STANDBY button to go back to the previous menu.
  • Page 56 Using the Menu 2-16 WFM 1125 Option 0A/0B/0C/0D Service Manual...

  • Page 57: Figure 2-8: Pin Assignments For The Rs-232C Connector

    Remote Operation The waveform monitor has two multi-pin connectors on the rear panel that provide different types of remote control. The RS-232C port provides for a status data output and factory servicing. The REMOTE connector provides a way to load or save presets. RS-232C Connector The RS-232C connector is a 9-pin D-type connector that provides a status data output and a remote verification interface.
  • Page 58 Remote Operation RS 232C Remote The following remote command can be sent through the RS-232C connector: Command DUMP When this command is received on STATUS mode, the waveform monitor outputs the selected one line data from EAV. If this command is received on any other mode, the waveform monitor returns an error message.

  • Page 59: Table 2-3: Remote Connector Pin Assignments And Functions

    Remote Operation Figure 2-9: Pin assignments for the REMOTE connector Table 2-3: Remote connector pin assignments and functions Pin number Function Information Line, Field Option 0A, 240M/274M format mode of Option 0C, or Interlace mode of Option 0D. Field is set to ON and line is set to OFF when TTL signal level goes from High to Low.
  • Page 60 Remote Operation Table 2-3: Remote connector pin assignments and functions (cont.) Pin number Function Information Recall 1 Front panel settings are recalled from the memory location specified by the following combinations of levels for pins 5 and 7 when the TTL level goes from Low to High. Memory Location Pin 5...
  • Page 61 Theory of Operation...
  • Page 63 Theory of Operation This section describes the electrical operation of the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D using the major circuit blocks or modules. A15 Relay & Sync board CHANNEL SELECTOR After input through CH A or CH B, the 1.48 Gbps serial signal is input to K200 through A15 Relay &...
  • Page 64 Theory of Operation DEMUX After output from HK-102/HK-202 at a data rate of 74.25 MHz, the signal is input to the DEMUX circuit, resulting in drop to a data rate of 37.125 MHz. The output signals are: Y_EVEN (10-bit wide), Y_ODD (10-bit wide), Pb (10-bit wide), Pr (10-bit wide), 37.125 MHz consecutive clocks, STOP_CLK (controlled by signal STOP from the A20 MAIN board), and LINE_NUMN, which indicates the start of the frame.
  • Page 65 Theory of Operation With the above features, this device performs interpolation by a factor of 53, that by a factor of 23, and sampling by a factor of 52/53. OFFSET OFFSET operates the UP/DOWN counter through the pulse that is output from the rotary encode (V-POS knob on front panel).
  • Page 66 Theory of Operation U565, U570, and U575 constitute a triple buffer. The data from VARIABLE PERSISTENCE can be written into the RAM without dead time. U585 is a SAVE&DISP RAM. While SAVE&DISP is not in execution, U585 is continuously writing the data into the VRAM from the inside of VARIABLE PERSISTENCE running cycle.
  • Page 67 Theory of Operation A30 Front Panel board The A30 Front Panel board drives the buttons, knobs and LEDs. User selections from the front panel are sent to the A20 Main board, and the commands from the A20 Main board control the LEDs on the front panel. A60 DC DC board The A60 DC-DC board generates the -2, -5, +1.2, +3.3, and +12.5 V power supply voltages from the +5 V power supplied from Power Supply, and sends...
  • Page 68 Theory of Operation WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 69 Performance Verification...
  • Page 71 Performance Verification This section describes the operation tests for the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D, and the procedures for those tests. The operation tests can be divided into two categories. H Diagnostics. The waveform monitor incorporates a diagnostic routines that performs comprehensive instrument testing.

  • Page 72: Table 4-1: Required Equipment

    Performance Verification Before Running the Performance Tests Perform the following before running the Operation Tests. Warm up A 20 minute warm up period is required for the all instruments (except for PC) prior to running the operation tests. Required Equipments Table 4–1 lists the equipment required for the performance tests.

  • Page 73: Figure 4-1: Ground Closer With 15-Pin D-Type Connector

    Performance Verification Table 4-1: Required equipment (Cont.) Item Qty. Required precision Recommended equipment Purpose IBM PC compatible For downloading the signal set data to the TSG1001 Parallel interface cable Tektronix part no. 174 2344 00, Connection between a PC and Supplied with the TSG1001 the TSG1001.
  • Page 74 Performance Verification Performance Tests The performance test for thewaveform monitor must be performed in the following order. H Frequency response H Low pass filter H Front panel controls H Format modes (option 0D only) H Analog output H Audio output H External reference H Remote functions H MONITOR out...
  • Page 75 Performance Verification 1. Connect the TSG1001 and PC with a parallel interface cable. And in the PC, type: cd sdp1000 <Return> com1000 <Return> <Return> DOWNLOAD screen appears. 2. Insert the signal set floppy disk (Multi.dnl signal set file stored) into the floppy disk driver on the PC.

  • Page 76: Figure 4-2: Performance Test Initial Hookup

    Performance Verification 75 W BNC cable WFM1125 waveform monitor rear panel Parallel signal cable PSC1125 TSG1001 generator rear panel converter rear panel Parallel signal cable Figure 4-2: Performance test initial hookup Initial Setups. H TSG1001: FORMAT: ....SMPTE 274M 60Hz (for Option 0A) SMPTE 296M (for Option 0B) SWEEP:...
  • Page 77 Performance Verification 8. Press the DISPLAY : CH 3 button and 10 bezel button align the marker of the sweep waveform with the graticule. 9. Press 1 bezel button. 10. Confirm that the amplitude of the sweep waveform is in the range from 695.1 to 704.9 mV and that the accuracy falls within the "...
  • Page 78 Performance Verification signal is currently displayed. 5. Press the DISPLAY : OVERLAY/PARADE button and confirm: H The LEDs of the PARADE, CH1, CH2 and CH3 light. H Y, P and P signals are being displayed in that order. 6. Press the DISPLAY : OVERLAY/PARADE button and confirm: H The LEDs of the OVERLAY, CH1, CH2 and CH3 light.
  • Page 79 Performance Verification 14. Press the GAIN : ON button and press the X5 bezel button, and then confirm: H The GAIN: ON LED lights. 15. Press the X1 bezel button to set the vertical gain to off. 16. Press the LINE SEL : ON button and confirm: H The VBLANK part disappears from the trace.
  • Page 80 Performance Verification For the instrument with serial number J340101 and above, H The INPUT: B LED light. H Waveform changes a line. 24. Switch the PSC1125 cable connection from the CH A to the CH B on the waveform monitor, and confirm: H The waveform appears on the screen again.
  • Page 81 Performance Verification 36. With a 50 W cable, connect the oscilloscope input and the CRCE OUT on the waveform monitor. Set the input impedance of the oscilloscope to 1 M W. Confirm: H The CRC LED momentarily lights each time the INPUT : A/B button is pressed.
  • Page 82 Performance Verification 8. On the TSG1001 front panel, press the FORMAT button repeatedly to set the FORMAT to 274M 24p, and confirm: H The field rate display at the upper right of the screen changes to 24p. 9. Set the format mode to “p(sF)” (segment frame). 10.

  • Page 83: Figure 4-3: Analog Output Test Initial Hookup

    Performance Verification BNC T connector TDS540B and 75 W terminator CH1 CH2 75 W BNC cable Parallel signal cable PSC1125 75 W BNC cable TSG1001 generator rear panel converter rear panel WFM1125 waveform Parallel signal cable monitor rear panel Figure 4-3: Analog output test initial hookup Initial Setups.
  • Page 84 Performance Verification Trigger level: ... . . –140 mV Procedure. 1. Align the 0 mV level of the signal with the center graticule on the oscillo- scope. 2. Change the oscilloscope vertical offset to 700mV. 3.
  • Page 85 Performance Verification 12. Observe the Bowtie display on the oscilloscope and confirm the skew is within 3 ns (the marker on the display indicates 1 ns). 13. Change the oscilloscope zoom setting to off. 14. On the TSG1001 front panel press the COLOR BARS button to set the COLOR BAR to 100 %.

  • Page 86: Figure 4-4: Audio Output Test Initial Hookup

    Performance Verification Terminate the other side of the BNC T connector with the 75 W terminator. BNC T connector TDS540B and 75 W terminator 75 W BNC cable Parallel signal cable PSC1125 75 W BNC cable TSG1001 generator rear panel converter rear panel WFM1125 waveform...
  • Page 87 Performance Verification Trigger source: ... . Trigger level: ... . . –140 mV Procedure. 1. Align the 0 mV level of the displayed signal with the center graticule on the oscilloscope.

  • Page 88: Figure 4-5: External Reference Test Initial Hookup

    Performance Verification 14. In the view, confirm CRC errors are not displayed. External reference This test confirms that the external reference input operation is functioning correctly. The following equipment is required. Equipment Required HDTV signal generator (TSG1001 and PSC1125) NTSC TV signal generator Two parallel signal cables Two 75 W BNC cables 75 W terminator...
  • Page 89 Performance Verification Initial Setups. H TSG1001: FORMAT: ....SMPTE 274M 60Hz (for Option 0A) SMPTE 296M (for Option 0B) SWEEP: ....100 % The Waveform Monitor: INPUT:...

  • Page 90: Figure 4-6: External Reference Test Initial Hookup

    Performance Verification Connect the 15-pin, D-type ground closure to the REMOTE connector on the rear panel. See Figure 4–1 for the switch ID symbols: SWxx, on the ground closure. 75 W BNC cable WFM1125 waveform Parallel signal cable monitor rear panel PSC1125 TSG1001 generator rear panel converter...
  • Page 91 Performance Verification 6. Close SW14. 7. Open SW11. 8. Close SW11. H The display changes to VECTOR. 9. Close SW13. 10. Open SW11. 11. Close SW11. H The display changes to PARADE. 12. Close SW12. 13. Open SW11. 14. Close pin 11. H The display changes to CH1.
  • Page 92 Performance Verification H The display changes to the green display. 22. Press and hold the INTEN/MENU button and then select SAVE PRESET: 1 ! OK. 23. Press the CH2 button, and select SAVE PRESET: 2 ! OK. 24. Press the CH3 button, and select SAVE PRESET: 3 ! OK. 25.
  • Page 93 Performance Verification H The display changes to SegmentFframe format mode. 36. Open SW4. H The display changes to Interlace format mode. MONITOR output This test confirms the signal level of the MONITOR output. The following equipment is required. Equipment Required HDTV signal generator (TSG1001 and PSC1125) Sampling oscilloscope Two parallel signal cables...

  • Page 94: Figure 4-7: Monitor Output Test Initial Hookup

    Performance Verification SMA to BNC adapter Sampling Oscilloscope SMA to BNC adapter 50 W BNC cable 50 W BNC cable 75 to 50 W 75 W BNC cable minimum loss pad Parallel signal cable PSC1125 TSG1001 generator rear panel converter rear panel WFM1125 waveform monitor rear panel...
  • Page 95 Performance Verification Horizontal sweep: ..200 ps/div Trigger mode: ... . . Auto Trigger coupling: ..Trigger level: .
  • Page 96 Performance Verification 4-26 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 97 Adjustment Procedure...
  • Page 99 Adjustment Procedures This section contains information needed to adjust the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. Adjustment in the waveform monitor are limited to the visual characteristics (linearity, size, focus, contrast and brightness ) of the display, analog output level, and the power supply voltage.
  • Page 100 Adjustment Procedures Table 5-1: Required equipment (Cont.) Item Qty. Required precision Recommended equipment Purpose BNC cable Impedance: 75 W Signal interconnection IBM PC compatible For downloading the signal set data to the TSG1001 Display Adjustment Adjustment timing After the removal and replacement of a display module due to electrical failure, you must adjust the timing.

  • Page 101: Figure 5-2: A5 Display Board View From Top Of The Waveform Monitor

    Adjustment Procedures Figure 5-2: A5 display board view from top of the waveform monitor Figure 5-3: A5 display board view from top of the waveform monitor (J310171 and above) Adjustment WARNING. To avoid serious injury, do not touch exposed connections or components when operating the instrument with the protective enclosure removed.
  • Page 102 Adjustment Procedures NOTE. Use the variable resistors described in the parenthesis for the instrument with serial number J310171 and above. 3. Connect the power cord, and turn on the power switch on the rear panel. H When R64 : BLACK (R454 : BRIGHT) is turned clockwise to brighten the whole area of the CRT, confirm that there are no chips or unevenness on the phosphor.
  • Page 103 Adjustment Procedures Black And White Levels. 7. Adjust R64 : BLACK (R454 : BRIGHT) to make the background disappear. 8. Press the INTEN/MENU button and then select GRADATION from the menu. a. Regulate R4 : WHITE (R251 : CONTRAST) so that the leftmost column is visible faintly and the two leftmost columns are discriminated.

  • Page 104: Figure 5-4: A10 Input Board View

    Adjustment Procedures R166 R172 R502 R522 R542 DL200 DL210 Front Figure 5-4: A10 input board view Analog Output Adjustment WARNING. To avoid serious injury, do not touch exposed connections or components when operating the instrument with the protective enclosure removed. Dangerous potentials exist at several points within the waveform monitor.
  • Page 105 Adjustment Procedures Initial Setups. TSG1001: COLOR BARS: ... 100 % COLOR BARS Oscilloscope: Waveform: ....Vertical scale: .
  • Page 106 Adjustment Procedures 11. If the –350 mV level is within " 0.5 division from the center graticule, go to the next step. If not so, go back step 7. 12. Press the TIMING SIGNALS button on the TSG1001 front panel to set the TIMING SIGNALS to BOWTIE.
  • Page 107 Adjustment Procedures Vertical offset: ... . –350 mV 21. Align the –350 mV level of the signal with the center graticule on the oscilloscope. 22. Change the oscilloscope CH2 vertical offset to 350 mV. 23.
  • Page 108 Adjustment Procedures Audio Output Adjustment Connections. Connect AUDIO CHA connector from the waveform monitor rear panel to the oscilloscope CH1 input using the 75 W BNC cable and the BNC T connector. Terminate the other side of the BNC T connector with the 75 W terminator. Initial Setups.

  • Page 109: Figure 5-5: A40 Cpu Board View And Test Points

    Adjustment Procedures Voltage Adjustment Preparations To perform the output adjustments, you must first remove the enclosure (cabinet). For removing the enclosure, refer to Preparation on page 5–2. After you have remove the enclosure (cabinet), find the test points on the A40 CPU board and the variable resistor on the Power Supply module.

  • Page 110: Figure 5-6: Power Supply Module View And Vr501

    Adjustment Procedures Front VR501 Figure 5-6: Power supply module view and VR501 Adjustment WARNING. To avoid serious injury, do not touch exposed connections or components when operating the instrument with the protective enclosure removed. Dangerous potentials exist at several points within the waveform monitor.
  • Page 111 Adjustment Procedures Procedure. 1. Remove the power supply module: a. Remove the three screws securing the power supply module to the instrument chassis. b. Slide the power supply module off of the chassis. 2. Connect the power cord to the waveform monitor, and turn on the power switch on the rear panel.
  • Page 112 Adjustment Procedures 5-14 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 113 Maintenance...
  • Page 115 Maintenance This section contains the information needed to do corrective maintenance on the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. The following subsections are included: H Preparation — Introduction plus general information on preventing damage to internal modules when doing maintenance. H Inspection and Cleaning —...
  • Page 116 Maintenance Preparation Before servicing this product, read the Safety Summary and Introduction at the front of the manual and the ESD information below. WARNING. To avoid electrical shock, disconnect the instrument from the AC power supply before removing the cabinet or replacing any components. CAUTION.

  • Page 117: Table 6-1: Relative Susceptibility To Static-Discharge Damage

    Maintenance Table 6-1: Relative susceptibility to static discharge damage Relative susceptibility Semiconductor classes levels MOS or CMOS microcircuits or discrete circuits, or linear microcircuits with MOS inputs (most sensitive) Schottky signal diodes Schottky TTL High frequency bipolar transistors JFET Linear microcircuits Low power Schottky TTL TTL (least sensitive) Voltage equivalent for levels (voltage discharged from a 100 pF capacitor through...

  • Page 118: Table 6-2: External Inspection Check List

    Maintenance Inspection and Cleaning Inspect and clean the waveform monitor as often as operating conditions require. Procedures The collection of dirt on components inside can cause them to overheat and breakdown. (Dirt acts as an insulating blanket, preventing efficient heat dissipation.) Dirt also provides an electrical conduction path that could cause an waveform monitor failure, especially under high-humidity conditions.

  • Page 119: Table 6-3: Internal Inspection Check List

    Maintenance 3. Clean the light filter protecting the monitor screen with a lint-free cloth dampened with either isopropyl alcohol or, preferably, a gentle, general purpose detergent-and-water solution. CAUTION. To prevent getting moisture inside the waveform monitor during external cleaning, use only enough liquid to dampen the cloth or applicator. Inspection Interior.
  • Page 120 Maintenance Table 6-3: Internal Inspection check list (Cont.) Item Inspect for Repair action Wiring and cables Loose plugs or connectors. Firmly seat connectors. Repair or Burned, broken, or frayed wiring. replace modules with defective wires or cables. Chassis Dents, deformations, and dam Straighten, repair, or replace aged hardware.
  • Page 121 Removal and Installation Procedures The procedures for removal and installation are not provided in this manual. WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 122 Removal and Installation Procedures WFM 1125 Option 0A/0B/0C/0D Service Manual...

  • Page 123: Figure 6-1: Rs-232C Cable With 9-Pin, D-Type Connectors

    Firmware Updates WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D firmware may be downloaded when the trouble shooting is needed or when the firmware has been updated. This must be done when the internal module: A40 CPU board has been replaced. This subsection explains the file contents in the firmware floppy disks and how to uncompress and download the firmware.

  • Page 124: Table 6-5: Floppy Disk's File List

    Firmware Updates Floppy disks The 3.5-inch MS-DOS format firmware floppy disks include the files listed in Table 6–5. Table 6-5: Floppy disk's file list Type / File name Descriptions 063-3174-XX Codes APPLI.HEX 68K code Utilities TERM.EXE TERMINAL EMULATION PC software LOAD0A.EXE PC software for Option 0A LOAD0B.EXE...
  • Page 125 Firmware Updates Table 6-5: Floppy disk's file list (Cont.) Type / File name Descriptions DIAMOND.TTF For Diamond display LIGHTEN.TTF For Lightning display X table Loaded to A20U425. 1LINES Lines display 3LINES Parade display 3LINES1 Parade display (Line Select) 3FIELDS Parade display (Field) FIELD Field display HMAG...
  • Page 126 Firmware Updates Table 6-5: Floppy disk's file list (Cont.) Type / File name Descriptions GF9101 coefficient files A20U260, A20U270, and A20U280 digital filter coefficients. For every mode, there are two types of files available: files for Y and those for Pb/Pr. Examples: FLY_Y_RE.TXT FL_C_RE.TXT Note that, if MENU ->...
  • Page 127 Firmware Updates Table 6-5: Floppy disk's file list (Cont.) Type / File name Descriptions CCIR9.TTF When color = SMPTE 274M and resol/d rng = D RANGE 10K10 config files Used to configure A20U100, A20U250, A20U350, A20U430, A20U470, A20U500, and A20U580 (i.e., to program FPGA).
  • Page 128 Firmware Updates Table 6-5: Floppy disk's file list (Cont.) Type / File name Descriptions 3F_750 3 fields disply (750 lines) 3L_1125 3 lines display (1125 lines) 3L_750 3 lines display (750 lines) 3LS_1125 3 lines select display (1125 lines) 3LS_750 3 lines display (line select, 750 lines) VEC100X1 Vector display, 100%Color bar...
  • Page 129 Firmware Updates Table 6-5: Floppy disk's file list (Cont.) Type / File name Descriptions FL_*_LI.TXT Non-field mode in Line Select mode FL_*_HM.TXT When HMag is displayed in response to the pressing of the Horizontal Mag button (except in the Line Select mode) FL_*_RE.TXT Other than above...
  • Page 130 Firmware Updates Uncompressing the Do the following steps to uncompress the download files. download files 1. Power up the PC. 2. If you use a Windows machine, enter into the MS-DOS prompt mode. 3. Select a destination directory. If you want to install the files at a new directory, create it.
  • Page 131 Firmware Updates Case 2: Option 0A Type: cd 1125 <Return> load0A <Return> Case 3: Option 0B Type: cd 750 <Return> load0B <Return> Following menu appears on the screen: Select Download item: 0: ALL 1: Firmware 2: TTF Files 3: GF Files 4: XY files 5: Graticule Data Q: quit...
  • Page 132 Firmware Updates Performance Verification After you download the firmware, perform the performance verification procedures described in Section 4, Performance Verification. 6-18 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 133 Troubleshooting This subsection contains diagnostic procedures and troubleshooting trees designed to help you isolate faulty modules in the waveform monitor. Diagnostics The WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D has internal diagnostics that focus on verifying, adjusting, and if need be, isolating faulty modules.
  • Page 134 Troubleshooting 7. Select LED again and confirm that all the LEDs go off. Memories 8. Press the DIAG bezel button. 9. Select MEMORY from the menu to run the following memory tests. H ROM checksum H RAM R/W test H FLASH MEMORY R/W test (this takes about 6 minutes) NOTE.
  • Page 135 Troubleshooting HK 102/HK 202 and FIFO To execute the following test, you must input any signal that includes EAV and SAV into those module through the CH A or CH B connector on the rear panel. 15. Connect a signal to the CH A or CH B connector on the rear panel. 16.
  • Page 136 Troubleshooting Start Turn on the power LEDs Replace Power Supply non-luminous? non-luminous CRT blinks? Fan down? Replace Fan CRT full white To (A), page 6-23 display? Graticules To (B), page 6-25 displayed? No waveform To (C), page 6-26 displayed? Low quality of To (D), page 6-28 waveform displayed?
  • Page 137 Troubleshooting Positive terminal of A60 C100 at 12.5  0.5 V? (See Figure 6-2) Negative terminal of A60 C120 at -15 1 V? (See Figure 6-2) Positive terminal of A60 C130 at +5  Replace A60 board 0.5 V? (See Figure 6-2) Replace A5 board 6-23...

  • Page 138: Figure 6-2: A60 Dc-Dc Board (View From Top)

    Troubleshooting C120 C100 C130 Positive terminal of C100 Negative terminal of C120 Positive terminal of C130 Figure 6-2: A60 DC DC board (view from top) 6-24 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 139 Troubleshooting Can Version Replace A40 CPU board No. be read? Output with Retry download CONFIG ERR? Connect to external Fixed? Replace A20 board monitor Graticules Fixed? displayed? Replace A5 board Replace A20 board Replace A40 CPU board Retry download Fixed? Give up 6-25 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 140 Troubleshooting A20 U110 2 at 37.125 MHz? No SIGNAL is (See Figure 6-3) displayed? Remove W000 and Replace A20 board Connect CHA to input of HK 102/HK 202 directly A20 U110 2 at 37.125 MHz? (See Figure 6-3) Replace A15 board Replace A10 board 6-26 WFM 1125 Option 0A/0B/0C/0D Service Manual...

  • Page 141: Figure 6-3: A20 Main Board (View From Top)

    Troubleshooting U110 2 (U110 2nd pin) J100 J110 Figure 6-3: A20 Main board (view from top) 6-27 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 142 Troubleshooting Y_EVEN, Y_ODD, PB Ramp waveform and PR of A20J110 or J100 stacked in certain location? stepped? (See Figure 6-3 and 6-4) Intense flicker? Replace A20 board Replace A10 board Does frequency response differ from Frequency response that of normal WFM in abnormal? STATUS mode? For 90 % or more,...

  • Page 143: Figure 6-4: J100 And J110 Connector Pin Configurations

    Troubleshooting PR<9..1> J100 J110 Y_EVEN<9..0> D_VD Y_ODD<9..0> FIFO_WE CLK_SEL LINE_NUMN NEWLINEN DCLK 10K 30 DFRAME SONY_RSTN PB<9..0> FD<7..1> U100 FD<23..1> CONFIG_ HK1025TRB DONE SONY_WRTN STOP_CLK 10K 30 SONY_RDN RELAY A10REGN CRCE SLOW_CLK P3.3V P3.3V FIFO_CLK P1.2V P1.2V CLK 37M STOP RESETA20 Figure 6-4: J100 and J110 connector pin configurations 6-29...
  • Page 144 Troubleshooting Analog outputs are correct? Audio outputs are Replace A10 board correct? Replace A10 or EXT REF is A15 board correct? 6-30 WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 145 Options...

  • Page 147: Table 7-1: Standard Accessories

    Options and Accessories This section describes the options as well as the standard and optional accessories that are available for the waveform monitor. Option 0A Description This option supports the following system formats: 1035/60i, 1035/59.94i, 1080/60i, and 1080/59.94i Option 0B Description This option supports the following system formats: 720/60p and 720/59.94p Option 0C Description...

  • Page 148: Table 7-2: Optional Accessories

    Options Optional Accessories The following optional accessories listed in Table 7–2 can be ordered with the monitor or purchased through a Tektronix field office or distributor. When ordering, include both the name and part number (if available) of the option. Table 7-2: Optional accessories Accessory Part number...
  • Page 149 Electrical Parts List...
  • Page 151 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. WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 152 Electrical Parts List WFM 1125 Option 0A/0B/0C/0D Service Manual...
  • Page 153 Diagrams...
  • Page 155 Diagrams This contains the block diagram and the interconnection diagram for the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. Symbols Graphic symbols and class designation letters are based on ANSI Standard Y32.2–1975. Abbreviations are based on ANSI Y1.1–1972. WFM 1125 Option 0A/0B/0C/0D Service Manual...

  • Page 156: Figure 9-1: Interconnections

    Diagrams AUDIO A AUDIO B CRCE OUT W240 W270 W300 W310 W280 EXT REF W320 W250 W260 J250 J220 W230 W100 J400 J402 J442 J170 J180 J190 J120 J240 CH A W000 J210 HK 102/ HK 202 Input Board W220 CH B J230 Relay &...

  • Page 157: Figure 9-2: Block Diagram

    Diagrams AUDIO A AUDIO B CRCE OUT EXT REF Relay & Sync Board CH A SYNC INPUT SEPARATOR HK 102/ DEMUX CHANNEL HK 202 CH B SELECTOR INPUT Input Board MONITOR OUTPUT CPU Board RS 232 C FLASH ROM (U100) (U140) (U170,U180,U190,U200 DECODER...

  • Page 158: Figure 9-3: A20 Main Board Block Diagram

    Diagrams LINE SELECT OFFSET (U100) (U250) J100 and J110 TRANSCODER FIFO INTERPOLATE (U200) (U150,U170, (U260,U270,U280) DOUBLER U186,U188) (U155,U175) CONTROLLER (U350) Y RAM HISTOGRAM VARIABLE (U410) ADDRESS PERSISTENCE GENERATOR (U500,U510,U520) X RAM (U430) (U425) VRAM INTERNAL VGA ADDER (U530,U565,U570,U575, (U650) J390 (U600) U585,U555,U550) EXTERNAL VGA...
  • Page 159 Mechanical Parts List...
  • Page 161 Mechanical Parts List This section contains a list of the replaceable modules for the WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D. 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 162 Mechanical Parts List Using the Replaceable Parts List This section contains a list of the mechanical and/or electrical components that are replaceable for the waveform monitor. Use this list to identify and order replacement parts. The following table describes each column in the parts list. Parts List Column Descriptions Column Column Name...
  • Page 163 Mechanical Parts List Manufacturers Cross Index Mfr. Code Manufacturer Address City, State, Zip Code 0D1M6 NMB TECHNOLOGIES INC 9730 INDEPENDENCE AVE CHATSWORTH, CA 91311 0GV52 SCHAFFNER EMC INC 9-B FADEM ROAD SPRINGFIELD, NJ 07081 0JR05 TRIQUEST PRECISION PLASTICS 3000 LEWIS & CLARK HWY VANCOUVER, WA 98666-6008 PO BOX 66008 0KB01...
  • Page 164 Mechanical Parts List Replaceable Parts List Fig. & Index Tektronix Serial No. Serial No. Mfr. Mfr. Part Num Part Number Effective Discont'd Name & Description Code 10-1-1 200-4018-XX GUARD,FAN:STL,NI PL 80009 2004018XX 366-1591-XX PUSH BUTTON:DOVE GRAY,ABS 80009 3661591XX 211-0720-XX SCREW,MACHINE:6-32 X 0.50,PNH,STL,TORX T-15 WITH OKB01 2110720XX SLOT...
  • Page 165 Mechanical Parts List Replaceable Parts List (Cont.) Fig. & Index Tektronix Serial No. Serial No. Mfr. Mfr. Part Num Part Number Effective Discont'd Name & Description Code 129-1250-XX SPACER,POST:12.5MM L,M2.6,STL,4.8MM HEX S5403 CL211-0172-6 129-1051-XX SPACER,POST:4.8MM L,4-40INT/4-40EXT,STL 4.8MM HEX 80009 1291051XX W/WASHER 346-0289-XX J330XXX...
  • Page 166 Mechanical Parts List Replaceable Parts List (Cont.) Fig. & Index Tektronix Serial No. Serial No. Mfr. Mfr. Part Num Part Number Effective Discont'd Name & Description Code 119-5994-XX CRT Unit: 80009 1195994XX ----------- CIRCUIT BD ASSY,A5 DISPLAY ----------- ----------- DEFLECTION YOKE 276-A017-XX CORE,EM FERRITE 80009...

  • Page 167: Figure 10-1: Wfm 1125 Digital Television Waveform Monitor

    A15 RELAY/SYNC (on A40 CPU board) HK 102/ HK 202 A10 INPUT A40 CPU A5 DISPLAY POWER SUPPLY A60 DC DC A20 MAIN A30 FRONT PANEL Figure 10-1: WFM 1125 Digital Television Waveform Monitor Option 0A/0B/0C/0D exploded view 10-7 WFM 1125 Option 0A/0B/0C/0D Service Manual Please cut away this area below the lines...
  • Page 168 10-8 WFM 1125 Option 0A/0B/0C/0D Service Manual Please cut away this area below the lines...
  • Page 169 Mechanical Parts List Component Tektronix Serial No. Effective Name & Description Mfr. Code Mfr. Part No. Number Part No. Dscont CABLE ASSEMBLIES ** W000 174-4026-XX CABLE ASSY,RF:75 OHM COAX,RG179,10CM L 80009 1744026XX W210 174-4025-XX CABLE ASSY,RF:75 OHM COAX,RG179,10CM L,BNC 80009 1744025XX W220 174-4029-XX...
  • Page 170 Mechanical Parts List Fig. & Tektronix Serial No. Effective 12345 Name & Description Mfr. Mfr. Part No. Index No. Part No. Dscont Code STANDARD ACCESSORIES 071-0260-XX MANUAL,TECH:USER 80009 0710260XX 161-0216-XX CABLE ASSY,PWR,:3,18 AWG,2.5M L,BLACK 80126 C7120-25M-BL (STANDARD ONLY) OPTIONAL ACCESSORIES 200-3897-XX FRONT PANEL COVER 80009...

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