WVR5200 Waveform Rasterizer Service Manual
Contents
1. WVR5200 Waveform Rasterizer Service Manual Theory of Operation 8 WVR5200 Waveform Rasterizer Service Manual General Maintenance This section contains the information needed to perform periodic and corrective maintenance on the instrument The following subsections are included Preventing ESD Preventing ESD General information on preventing damage by electrostatic discharge Inspection and Cleaning Information and procedures for inspecting and cleaning the instrument Troubleshooting Information for isolating and troubleshooting failed modules Included are instructions for operating the diagnostic routines and troubleshooting trees Most of the trees make use of the internal diagnostic routines to speed fault isolation to a module Removal and Replacement Procedures Information and procedures for removing and replacing modules in the instrument Repackaging Instructions Information on returning a instrument for service Before servicing this product read the Safety Summary and Introduction at the front of the manual and the ESD information below instrument N CAUTION Static discharge can damage any semiconductor component in the When performing any service that requires internal access to the instrument adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge ESD 1 2 Minimize handling of static sensitive circ2. Observe all terminal ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Power disconnect The power cord disconnects the product from the power source Do not block the power cord it must remain accessible to the user at all times Do not operate without covers Do not operate this product with covers or panels removed Do not operate with suspected failures If you suspect that there is damage to this product have it inspected by qualified service personnel Avoid exposed circuitry Do not touch exposed connections and components when power is present Use proper AC adapter Use only the AC adapter specified for this product Do not operate in wet damp conditions Do not operate in an explosive atmosphere Keep product surfaces clean and dry Provide proper ventilation Refer to the manual s installation instructions for details on installing the product so it has proper ventilation WVR5200 Waveform Rasterizer Service Manual General Safety Summary 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 condit
3. which is presumed good based on single fault assumption Since a good unit boots completely with the front panel disconnected an initial and final test are done to the front panel to guarantee that the front panel is not hanging boot This procedure requires disassembly and should be performed only if some front panel buttons light but the external display is not functional Observe the sequence of front panel button illumination at power on Normal power up sequence has the following appearance Time is in seconds T 0 press power button to power up WVR5200 Waveform Rasterizer Service Manual 19 Troubleshooting 20 Fan Checks GAIN SWEEP MAG buttons light Initial button lighting sequence starts with lt gt V buttons on for about second each T 3 All buttons flash for fraction of a second then all go out out The button sequence changes to row by row starting with WFM row then PICT row then GAMUT row then repeating 10 to 20 Power button may turn red 20 Button sequence stops T 28 Brief changes then all buttons dim per backlight setting 32 Previous power down state is restored to buttons Usually two or three become bright If the power up behavior is similar to that described then the CPU is booting correctly and the display fault is likely to be on the FPGA board Replace the FPGA board If the power up behavior differs from that described above then perform the Basic P
4. 1 CIRCUIT BOARD SUBASSY SDI IO 7 211 0380 00 2 SCREW MACHINE 4 40 X 0 375 FLH STEEL ZINC FINISH T8 8 863 6502 01 1 CIRCUIT BOARD SUBASSY CPU 9 146 0109 00 1 BATTERY DRY 3 0V LITHIUM MANGANESE DIOXIDE 210MAH 20 X 3 22MM COIN CELL WITH SOLDER TABS CR2032 1HF1 SAFETY CONTROLLED 10 214 5305 00 1 SPRING GROUND CLIP FRONT PHONE JACK USB 11 260 5015 00 1 u PUSH SPST TACT 50MA 50V MOMENTARY SILVER CONTACTS KSC221G GULLWING SMD 12 348 2002 00 1 GASKET EMI 0 125 X 0 250 FOAM W CONDUCTIVE FABRIC 13 200 5191 00 1 TOP COVER CHASSIS 14 211 0105 00 18 SCREW MACHINE 4 40 X 0 188 FLH 100 DEG ZINC PLATED STEEL T8 15 333 4652 00 1 PANEL REAR WVR 16 214 3903 00 4 VENDOR LYNTRON SCREW JACK 4 40 X 0 312 LONG 0 188 H HEX HEAD STAND OFF 4 40 INT THD X 0 312 THD EXT 4 40 STEEL ZINC PLATED 17 210 1039 01 7 SCREW MACHINE M2 5 X 6MM FLH STL CR PL CROSS REC 3026 18 220 0497 00 7 NUT PLAIN HEX 5 28 X 562 HEX BRS NI NICKEL PLATED 19 878 6504 00 1 CIRCUIT BOARD SUBASSY REF IO UNTESTED 389441200 ROHS COMPLIANT 20 441 2645 00 1 CHASSIS MAIN WVR 21 119 7751 00 2 FAN DC TUBEAXIAL 12V 5 6 CFM 22 211 0894 00 4 SCREW MACHINE 4 40 X 0 625 PNH STEEL ZINC FINISH T 10 TORX DR 23 174 5492 00 1 CABLE ASSEMBLY 10 PIN FP TO MAIN ROHS TO ROHS 24 863 6505 01 1 CIRCUIT BOARD SUBASSY WVR FP 25 260 2923 00 1 SWITCH KEYPAD ELASTOMER MAT WVR 26 333 4649 00 1 FRONT PANEL ASSEMBLY FRONT PANEL 27
5. 366 0859 00 1 ASSEMBLY KNOB 470 DIAMETER SOFT TOUCH WVR5200 Waveform Rasterizer Service Manual 31 Replaceable Parts Figure 4 WVR5200 Exploded view An Interworld Highway LLC Company WVR5200 Waveform Rasterizer Service Manual 32
6. If the voltages are outside of the allowed range replace the SDI board If voltages are within the allowed range replace the CPU board Table 5 SDI board basic supplies Nominal V Allowed range V 12V 1110 17 5V 4 85 to 5 15 3 3V 3 210 34 WVR5200 Waveform Rasterizer Service Manual 17 Troubleshooting 054 5V fault DS3 5 fault DS2 switch fault 095 3 3V fault 51 Power On 88 E T ni XE zm pon En dE dp i ore as Boc Bs T aw ED 1 n PaO NE 8 i Bi i H om soe pr i av CPU 2 5V lo i 0550 009 Figure 2 SDI board 18 WVR5200 Waveform Rasterizer Service Manual Troubleshooting Basic Power Supply Fault This procedure requires disassembly It should be performed only if the unit fails Checks to operate to the point where diagnostics can be run and if the power button is continuously lit red The power button is normally red for about 2 seconds when the unit is first powered up In addition the power button may be red in the case of any detected hardware fault To isolate the symptom to a power supply fault it is necessary to view the fault LEDs on the SDI board Remove the top cover to gain viewing access to the SDI board fault LEDs DS2 DS3 DS4 and DSS located on the right edge of the SDI board These are visible from above Connect power and press an
7. board and use the oscilloscope to look for a 3 3 V square wave on the tachometer feedback line If resistors are intact but there 1s no signal on the tachometer line replace the affected fan To examine the Power up Diagnostics results press the CONFIG button then select Utilities gt View Diagnostic Log Each power on is indicated by a boot time stamp followed by a list of power on tests If any failures are indicted then refer to the action as noted above To run the Advanced Diagnostics press the CONFIG button then select Utilities gt Run Advanced Diags Advanced Diagnostics includes tests that check the interfaces between FPGAs and memory on the FPGA board If any of these tests fails replace the FPGA board This test uses the built in voltage monitor to check many power supplies on the SDI FPGA and CPU boards It requires successful boot up display and front panel operation 1 Press and hold OTHER then select Diag Monitor to display the diagnostic monitor screen 2 Navigate to pages 2 and 3 to display the power supply voltages If the Last value of any voltage is outside the allowable range it will be displayed in red Voltage values are updated about every 10 seconds 3 Ifany voltage is out of range replace the faulty module as indicated by the first word of the displayed line Input indicates the power supply is on the SDI board Perform this test if the power supplies are good but none of the but
8. cable that leads from the Reference board to J4 on the FPGA board below 7 Pull gently and separate the rear panel with the Reference board still attached from the main chassis Reference board 1 Using a 3 16 nut driver remove the two Remote connector jack screws that secure the Reference I O board to the rear panel When reassembling tighten to 4 in Ibs 2 Remove the nut and lock washers from the two Ref Loop female BNC connectors using a 9 16 wrench 3 Pull the Reference board straight back away from the rear panel 4 Place the Reference board on a static free work surface 24 WVR5200 Waveform Rasterizer Service Manual Removal and Replacement Procedures ma FPGA board Remove the three pan head 40 X 0 187 T10 screws that secure the FPGA board to the SDI board below it When reassembling tighten these screws to 5 5 in Ib 2 Liftthe FPGA board straight up to disconnect the inter board connector on the bottom ofthe FPGA board from the SDI board When reinstalling make sure that these connectors are aligned correctly before pushing the FPGA board down onto the SDI board and that you don t clip the fan cable 3 Place the FPGA board on a static free work surface 2 SDI board Using a 3 16 nut driver remove the three spacer posts When reassembling tighten the posts to 5 5 in Ibs 2 Liftthe SDI board straight up in order to disconnect the inter board connector on the bottom of the SDI board
9. from the CPU board When reinstalling make sure that these connectors are aligned correctly before pushing the SDI board down onto the CPU board 3 Place the SDI board on a static free work surface m CPU board Remove the one pan head 40 X 0 187 T10 screw that secures the CPU board to the chassis When reinstalling tighten this screw to 5 5 in Ib 2 Using a 3 16 nut driver remove the three spacer posts When reassembling tighten the posts to 5 5 in Ibs 3 Gently disconnect the fan cables from J7 and J8 on the CPU board These connectors lock in place Push the release tab in the middle to unlatch the connector When reinstalling make sure to push the plug into the connector until it snaps into place 4 Gently disconnect the front panel cable from J1 on the CPU board Pull this straight away from their connectors to prevent damage 5 Tilt the CPU board up slightly and separate it from the main chassis 6 Place the CPU board on a static free work surface m Turn the front panel assembly over Remove the two flat head 40 X 0 188 1 10 screws on the bottom that secure the front panel assembly to the main chassis Front Panel 2 Pull the front panel assembly forward Gently pull the cable through the slot in the main chassis 3 Gently disconnect the cable from the front panel board and set it aside WVR5200 Waveform Rasterizer Service Manual 25 Removal and Replacement Procedures Remove the front panel boar
10. repair defects that could cause personal injury or lead to further damage to the instrument Table 1 External inspection check list Item Inspect for Repair action Front panel and top cover Cracks scratches deformations damaged hardware Repair or replace defective module Front panel knobs Missing damaged or loose knobs Repair or replace missing or defective knobs Connectors Broken shells cracked insulation and deformed contacts Dirt in connectors Repair or replace defective modules Clear or wash out dirt Rackmount slides Correct operation Repair or replace defective module Accessories Missing items or parts of items bent pins broken or frayed cables and damaged connectors Repair or replace damaged or missing items frayed cables and defective modules Inspection Interior To access the inside of the instrument for inspection and cleaning you will need to remove the top cover Inspect the internal portions of the instrument for damage and wear using the following table as a guide Defects found should be repaired immediately If any circuit board is repaired or replaced check the following table to see if it is necessary to adjust the instrument CAUTION To prevent damage from electrical arcing ensure that circuit boards and components are dry before applying power to the instrument Table 2 Internal inspection check list Item Inspec
11. to CPU board J1 pin 2 should be less than 10 ohms B CPU board continuity Resistance from J1 pin 2 to J2 pin 211 should be less than 10 ohms SDI board continuity Resistance from J2 pin 211 to switch S1 pins nearest the edge of the board should be less than 10 ohms Replace any cable or board that fails the resistance checks Basic Power Supply This section describes methods for verifying the proper operation of the basic Checks power supplies on the SDI board This procedure requires partial disassembly and should only be performed if the unit fails to produce evidence of CPU boot up N WARNING Internal power supplies are all low voltage so no safety shield is present This instrument requires an external DC power source capable of providing 11 to 17 Vdc at 3A The provided AC adapter accepts 90 to 264 VAC and outputs around 12 VDC with 4 A capability This voltage passes through a power switch circuit on the SDI board and is present at the 12 V test point if instrument power is on The switched 12V powers 5V and 3 3V switching power supplies also located on the SDI board These three voltages are the basic power supplies distributed to the rest of the instrument Remove the Reference I O and FPGA boards to gain access to the SDI board power test points Locate the 12V 5V and 3 3V test points on the SDI board See Figure 2 Measure the voltages with a DVM and check against the allowable ranges See Table 5
12. used by Tektronix for warranty work may be new or reconditioned to like new performance All replaced parts modules and products become the property of Tektronix In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by 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 This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integrati
13. Audio VCXO Clocks DISPLAY DATA HEADPHONE CPU BUS Ref LCD JTAG FPGA BOARD KN K CPU BUS Bd Bd IO CPU PLD 0 System reset 3NOHdQV3H Bd Bd buffers NVRAM Fi DDR2 Intf ETHERNET ETHERNET PHY Figure 1 Block diagram 440EP CPU BUS KCPUBUS Microprocessor SPI USB 3NOHdQV3H J2 Front panel intf Bd Bd IO Backlight driver Audio Audio phy FPGA Clocks CPU BOARD 7 8 QDR2 Front panel board Back Light Headphones J4 USB Fan Fan 0550 001 WVR5200 Waveform Rasterizer Service Manual Theory of Operation CPU Board Serial Digital Input The serial digital circuitry receives the SDI input streams from the SDI board Processing after they have been equalized The SDI streams are passed to the DSP FPGAs where they undergo measurement and raster processing The signal information is then passed to the DSY FPGA for picture processing recursion and display combining The result is provided to the external DVI I connector Reference I
14. BE Usa TEquipment An Interworld Highway LLC Company WVR5200 Waveform Rasterizer Service Manual Tektronix 077 0551 00 S WVR5200 Waveform Rasterizer Service Manual www tektronix com Tektronix 077 0551 00 S Copyright Tektronix 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 Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tektronix Inc Contacting Tektronix Tektronix Inc 14150 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support 7 North America call 1 800 833 9200 Worldwide visit www tektronix com to find contacts in your area Warranty Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If any such 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 Parts modules and replacement products
15. Operating Information TERRAS ee 2 Theory of Operation einen Bun een bau de edu ale 3 CPU Board iiec tom itor RE PR SABER RR 5 Front Panel Rm 6 Audio Option AUD ass lea er a 6 Fan Control 7 Power Supply and 1 2 2 7 General Maintenance iy rasen 9 Preventing ESD assisi le en ba 9 Inspection and 2 Ea 10 Troubleshooting I es 13 Getting Started 13 Detailed Troubleshooting Procedures 2 2 2 16 Removal and Replacement Procedures 2 0 22 Preparation una ns ei ei eb 22 Module Removal an 24 Repackagme Instructions ne 27 PaCK agin m 27 Shipping to the Service 27 Ete SERT 29 Parts Ordering Information oci ausm nu a UR S E Vas 29 Using the Replaceable Parts 1518 2 2 2 enn 30 WVR5200 Waveform Rasterizer Service Manual 1 Table of Contents List of Figures Figure 1 Block diagr ni ea a sn IR hen 4 SDI based aus E 18 Fig re 3 Fan and main Chassis unse b
16. arm output bad Check Reference cable Replace Reference I O board Unknown Problems An instrument may come into service with vague or intermittent symptoms In a case like this the following set of tests may help find the problem or the marginal condition 1 Check the diagnostic log This log records a variety of problems and will enable you to see messages for an error that may not be currently happening 2 Check the power supplies by performing the Diagnostic Monitor Voltage Checks A marginal supply can lead to intermittent operation if it is near the acceptable threshold This includes the external power source and the secondary supplies on each board 3 Perform the incoming inspection tests This will exercise a majority of the functions in the unit and includes the Advanced Diagnostics Some parts of the test may not be necessary for all problem areas Detailed Troubleshooting Procedures General Checks Power Switch Checks The following tests should be run as indicated in the Symptom and Causes table See Table 4 on page 15 The procedures check for specific problems or will help you isolate a problem to a board You can run them at any time for informational purposes but if you do not run the procedures in the correct context then the final recommendation identifying a root cause might be suspect 1 Verify that the external power is connected stable and between 10 and 19 Vdc 2 Check that all internal ca
17. aveform data are then combined with the graphics and audio bar information from the control processor The result is sent through the DVI connector to the external monitor CPU Board Control The control processor is in charge of all the operational modes in the instrument Processor It draws the audio bars communicates with the front panel and controls most other internal devices though either the SPI or the DC bus The control processor interfaces to the Ethernet through a dual rate connection This allows the network connection to run at 10 or 100 MBps WVR5200 Waveform Rasterizer Service Manual 5 Theory of Operation LTC Front Panel Audio Option AUD Audio Processing LTC inputs come from the remote connector The LTC signal is applied to an A D converter and then input to the waveform processing FPGA which decodes the time code information NOTE The FPGAs decode VITC signals digitally The front panel contains a small processor which communicates with the control processor through SPI signaling Reprogramming can be done through the SPI if the front panel processor flash code must be updated The audio option enables display of levels and phase of embedded audio and drives the headphones output The display FPGA extracts embedded audio data from the selected SDI data stream and sends it to the headphones output D A converter on the CPU board The FPGA also calculates the peak values for the selected meter ballis
18. bles are correctly connected and seated 3 Check for any discolored or burned components This procedure requires partial disassembly and should only be performed if the unit fails to show any indication of operation This procedure may also be used to troubleshoot a unit that cannot be powered off from the front panel power button Remove the Reference I O and FPGA boards to gain access to the SDI board test points Connect power and measure the voltage at power connector J7 pin 4 with respect to chassis ground The external power supply voltage 10 to 19 Vdc should be present at this pin If no LEDs are lit on the front panel or CPU board press the front panel power button to check that the initial problem is still present If there is still no indication of power up press button S1 on the SDI board If S1 also has no effect replace the SDI board If S1 causes normal power up indicated by lit red and green LEDs on the CPU board then the problem is in the connection from the front panel button to the SDI board Disconnect power disassemble as necessary and check for continuity or low resistance of the following links WVR5200 Waveform Rasterizer Service Manual Troubleshooting m Button resistance On the front panel board resistance from pin 2 to ground should be less than 1000 ohms when the power button pressed greater than 20k ohms when released Front panel cable continuity Resistance from Front Panel board pin 2
19. cedures in the second section You should investigate and resolve the first symptom found as the Symptoms and Causes table assumes that the functions covered earlier in the table are working correctly If you do not find your instrument s problem in the table or if no specific problem was reported by the user then follow the steps in the Unknown Problem section in the Symptoms and Causes table The WVR5200 Waveform Rasterizer is highly configurable and its behavior is sometimes complex Before troubleshooting in depth verify that The installed options are as expected See CONFIG gt Utilities gt View Instrument Options m The current settings support the expected behavior A good first step is to recall the Factory Presets To do this press PRESET gt Recall Preset gt Recall Factory Preset To fully test this instrument you must have an appropriate Serial Digital Video source In some cases you may also need receivers or an oscilloscope to check outputs This instrument consists of several boards and major components The objective of this troubleshooting guide 1s to isolate a problem to a module or board so it can be replaced This guide does not provide information to troubleshoot to the component level WVR5200 Waveform Rasterizer Service Manual 13 Troubleshooting Standard boards and modules Table 3 Required test equipment Test equipment SDI serial digital video test generator with embedded audio Instrument
20. d The front panel board can be removed from the front panel and replaced if needed 1 2 Fan and Main Chassis 1 Remove the three knobs from the front panel Remove the four pan head 40 X 0 187 10 screws that secure the board to the front panel When reinstalling tighten to 5 5 in Ib Gently separate the board with elastomer mat attached from the front panel Pull off the elastomer mat Remove the four pan head 40 X 0 625 T10 screws that secure the two fans to the main chassis Remove the fans from the main chassis When reassembling put the fans inside the main chassis with the NMB MAT labels facing towards the inside ofthe instrument Make sure the fans are rotated so that the cables are located up against the main chassis bottom and on the outer corners See Figure 3 Figure 3 Fan and main chassis 26 WVR5200 Waveform Rasterizer Service Manual Repackaging Instructions Repackaging Instructions This section contains the information needed to repackage the instrument for shipment or storage Packaging When repacking the instrument for shipment use the original packaging If the packaging is unavailable or unfit for use contact your local Tektronix representative to obtain new packaging Refer to Contacting Tektronix following the copyright statement for the mailing address the email address and phone number Seal the shipping carton with an industrial stapler or strapping tape Shipping to
21. d hold the power button If none of the four fault LEDs is red then exit this procedure LEDs DS1 and DS3 indicate faults on the SDI board If any one of them is red replace the SDI board If either DS4 055 is lit then isolate the faulty assembly by removing them one at a time in the order listed below Disconnect the power before removing each assembly and then reconnect power and press the power button to test The first board or cable to be removed which causes an SDI board fault LED to stop lighting 1s probably faulty and should be replaced 1 Reference I O cable at FPGA board J4 2 FPGA board 3 Display backlight cable at CPU board J5 remove SDI board to gain access then reinstall SDI board For the next two steps test by pressing SDI board switch S1 instead of the disconnected front panel power button 4 Front panel cable at CPU board J1 remove SDI board to gain access then reinstall SDI board 5 CPU board remove SDI board from CPU and test SDI board in isolation If any SDI board fault LED DS1 through 055 is red when the board is tested in isolation replace the SDI board CPU Boot Checks The objective of this test is to determine whether CPU FP SDI is booting correctly in which case the missing external display is an FPGA board fault If CPU FP SDI is not booting to completion the Basic Power Supply Fault Checks decide whether the SDI or CPU FP is at fault The primary indicator is the front panel behavior
22. eatures and capabilities for your instrument contact Tektronix for more information on purchasable options For a complete list of options refer to the WVR5200 Waveform Rasterizer User Manual For basic operating instructions refer to the WVR5200 Waveform Rasterizer User Manual For more detailed reference information refer to the instrument Online help Press the Help button on the instrument front panel and then use the General knob up down arrow keys and SEL button to navigate through the topics 1 Connect the supplied power cord to the external AC adapter and connect its XLR output connector to the instrument 2 Press the power button on the instrument front panel and the instrument will turn on 3 Wait for the system to complete its power on self tests m Press the power button on the instrument front panel to turn the instrument off 2 Toremove power completely disconnect the power cord from the AC adapter NOTE The power button on the front panel does not disconnect the mains power Only the power cord at the AC adapter can disconnect the mains power WVR5200 Waveform Rasterizer Service Manual Theory of Operation WVR5200 Waveform Rasterizer Service Manual This instrument is modular It includes extensive standard capabilities which can be augmented by adding various options This instrument has outputs to drive an external monitor as well as a serial digital picture monitor This theory of o
23. ed 26 Figure 4 WVR5200 Exploded 32 ii WVR5200 Waveform Rasterizer Service Manual Table of Contents List of Tables Table 1 Related documentation EEE vii Table 1 External inspection check list csse 1 1 0 11 Table 2 Internal inspection check 16 2 2 e emen 11 Table 3 Required test 22 2 22 2 se 14 Table 4 Symptoms and causes 2 15 Table SDI board basic supplies eere tenet ee mr nes a een 17 Table 6 Tools required for module removal 22 2 23 WVR5200 Waveform Rasterizer Service Manual iii General Safety Summary General Safety Summary To Avoid Fire or Personal Injury iv 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 Use proper power cord Use only the power cord specified for this product and certified for the country of use Ground the product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded
24. er Instrument serial number Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Modules can be serviced by selecting one of the following three options Contact your local Tektronix service center or representative for repair assistance Module Exchange In some cases you may exchange your module for a remanufactured module These modules cost significantly less than new modules and meet the same factory specifications 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 New Modules You may purchase replacement modules in the same way as other replacement parts WVR5200 Waveform Rasterizer Service Manual 29 Replaceable Parts Using the Replaceable Parts Lists This section contains lists of the mechanical and or electrical components that are replaceable for your instrument Use this list to identify and order replacement parts The following table describes each column in the parts list Column Column name Description 1 Figure amp index number Items in this section a
25. fied Chinese Printed manual Product Product Documentation CD www tektronix com manuals Basic installation and safety information Online Help In depth operation and UI help In the instrument press the HELP button on the front panel WVR5200 Waveform Rasterizer Service Manual vi Preface Table i Related documentation cont Item Purpose Location WVR5200 Waveform Rasterizer Procedure for checking performance and Product Documentation CD Specifications and Performance list of specifications www tektronix com manuals Verification WFM Series Waveform Monitors and Programmer s command reference for Product Documentation CD WVR Series Waveform Rasterizers controlling the waveform rasterizer www tektronix com manuals Management Information Base Programmer Manual viii WVR5200 Waveform Rasterizer Service Manual Introduction Service Strategy Specifications The WVR5200 Waveform Rasterizer rasterizes serial digital video signals for a DVI I display providing a new standard of display quality and flexibility These products are repaired to the module level at selected Tektronix service centers Repair includes functional verification of the product The specifications for this product are found in the WVR5200 Waveform Rasterizer Specifications and Performance Verification Technical Reference located on the Product Documentation CD that ships with the product and is published on the Tektronix Web site See
26. in this instrument See Table 6 on page 23 Read the cleaning procedure before disassembling the instrument for cleaning Equipment Required Most modules in the instrument can be removed with a screwdriver handle mounted with a size T8 and T10 Torx screwdriver tips and a 22 WVR5200 Waveform Rasterizer Service Manual Removal and Replacement Procedures 3 16 nut driver All equipment required to remove and reinstall the modules is listed in the following table See Table 6 on page 23 Table 6 Tools required for module removal Item General Tool no Name Description number 1 Screwdriver handle Accepts TORX driver bits 620 440 2 T8 TORX tip Used to remove screws securing Standard tool top cover rear panel front panel and XLR power connector 3 T10 TORX tip Used for removing mostinstrument 640 235 screws Torx driver bit for T10 size screw heads 4 T15 TORX tip Used for removing instrument 640 247 screws Torx driver bit for T15 size screw heads 5 1 8 inch flat bladed Screwdriver for unlocking cable Standard tool screwdriver connectors 6 Angle Tip Tweezers Used to remove front panel knobs Standard tool 3 46 inch nut driver Used to remove jack screws and Standard tool front panel spacer posts 8 5 6 inch nut driver Used to remove nut on AC ground Standard tool lug 9 8006 Soldering Aid Used to remove the front panel trim Standard tool spudger 10 Soldering iron 15 W 11 Long nose
27. ining steps If steps 1 and 2 do not remove all the dust or dirt the instrument may be spray washed using a solution of 7596 isopropyl alcohol by doing steps 4 through 6 Gain access to the parts to be cleaned by removing easily accessible shields and panels Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate Dry all parts with low pressure deionized air rication There is no periodic lubrication required for the instrument WVR5200 Waveform Rasterizer Service Manual Troubleshooting Getting Started Troubleshooting The procedures in this section will help you trace the root cause of a problem back to one of the replaceable modules In general this is a board level replacement but there are a few components on some boards that are replaceable WARNING Before performing this or any other procedure in this manual read the General Safety Summary and Service Safety Summary found at the beginning of this manual To prevent possible injury to service personnel or damage to electrical component refer on how to prevent ESD See page 9 This procedure consists of two main sections the first section contains the Symptoms and Causes table and the second section contains a set of Detailed Troubleshooting Procedures The table lists common problems and should help you identify the problem or it may direct you to one of the detailed troubleshooting pro
28. ions or practices that could result in damage to this product or other property Symbols and Terms onthe These terms may appear on the product Product DANGER indicates injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product The following symbol s may appear on the product A O CAUTION Refer to Manual Standby WVR5200 Waveform Rasterizer Service Manual Service Safety Summary Service Safety Summary vi 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 Disconnect Power To avoid electric shock switch off the instrument power then disconnect the power cord from the mains power Use Care When Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or replacing components To avoid electric shock do not touch exposed connections WVR5200 Waveform Rasterizer Service Manual Preface Manual Conventions Related Manual
29. nput The reference input is a passive loopthrough which is AC coupled and buffered The reference signal is applied to a sync separator whose output is supplied to the DSP FPGA where the timing information is derived The reference signal is also digitized for display as a waveform Digital Waveform The data streams from the SDI video inputs are applied to the waveform Processing Engine processing FPGA This block deformats up samples interpolates and otherwise processes the data to generate the signals needed to create the displays Rasterizing Engine The rasterizer engine resides in the same DSP FPGA as the waveform processing engine This block builds up the variable intensity images in the fast static RAM For each pixel of the display the rasterizer engine increments the intensity of that pixel every time the waveform hits its coordinates As a result the waveform areas that are hit more frequently are brighter For any given frame the intensity map is built up in one memory chip and read out of the other The functions swap on the next field Recursion and Picture The output of the rasterizing engine feeds the picture and recursive processing Processing Engine engine in the second large FPGA This engine adds the previous frame to the present frame to reduce flicker and improve brightness It also converts the picture and waveform signals from various input frames rates to 60 Hz frame rate to work with the DVI I monitor The picture and w
30. on increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES W2 15AUG04 Table of Contents General Safety Summary scannen ae ___ DEOS iv Service Safety Summary o ERR einsehen vi luce c vii rere bison E rede IDEE I ke vii Related Manuals een ei Rs ek vii Introduction 1 Service Strategy nee ee 1 1 Performance Verification iecore eer I Sansa 1 Options ACCeSSOFIGS ___ _____ _ 1 tule 1 Hardware Installation sea are a EEE ENE VERE EO RR Re 1 Product Upgrade m 2
31. orm CPU Boot Checks External display does not function normally Verify external monitor functionality with another XVGA source Replace FPGA board The front panel buttons are all dark or inoperative Check front panel cable Replace front panel assembly Power Up Diagnostic failures Faults referring to Main or CPU board Replace CPU board Faults referring to FPGA functions Replace FPGA board Fan faults Perform Fan Checks Advanced Diagnostics failures Functional or Performance Verification Test Failures Replace FPGA board Perform Power Up Diagnostics Perform Advanced Diagnostics Perform Diagnostic Monitor Voltage Checks Use the table below to isolate the faulty module based on problem area SDI one channel bad Replace SDI board SDI in all four channels bad Replace FPGA board Waveform or graphic displays Replace FPGA board corrupted SDI OUT Replace FPGA board Audio bars bad Replace FPGA board USB bad Replace CPU board Ethernet bad Replace CPU board Fans bad Perform Fan checks Headphones bad audio bars ok Replace CPU board Reference or LTC waveform bad Check Reference I O cable Replace Reference I O board WVR5200 Waveform Rasterizer Service Manual 15 Troubleshooting Table 4 Symptoms and causes cont Symptom Possible cause or detailed troubleshooting procedure to follow Ground closure input or Al
32. ower Supply Fault Checks to further isolate the faulty module This instrument contains two fans they are controlled by both hardware and software Hardware controls the fans to a certain speed but software sets the speed target as a function of the temperature measured on a variety of temperature sensors If a fan fails its corresponding LED lights up on the CPU board Fan 1 fails LED DS3 lights m Fan 2 fails LED DS2 lights A fan failure is sensed through tachometer feedback a fault will be asserted if the fan is not connected is stalled or if the tachometer feedback line is not working correctly If one fan fails the control circuit will increase the voltage to the 13 5 V max level causing the remaining fan to run at maximum speed The normal voltage to drive the fans pin 1 varies from about 6 V to 13 5 V depending on internal temperature If a fan is not spinning measure the voltage on pin of the connector on that fan If the voltage is near 13 V then replace the fan If the voltage is not above 10 V then replace the CPU board WVR5200 Waveform Rasterizer Service Manual Power Up Diagnostics Advanced Diagnostics Diagnostic Monitor Voltage Checks Front Panel Button Troubleshooting Troubleshooting If both fans are spinning but either LED DS2 DS3 is lit the problem is probably the tachometer feedback line on pin 3 of either fan Inspect the wiring and resistors R201 R203 R202 and R204 on the CPU
33. page vii Related Manuals Performance Verification The performance verification procedures for this product are found in the WVR5200 Waveform Rasterizer Specifications and Performance Verification Technical Reference located on the Product Documentation CD that ships with the product and is published on the Tektronix Web site See page vii Related Manuals Options and Accessories Configurations Hardware Installation The lists of options and accessories for this product are found in the WVR5200 Waveform Rasterizer User Manual located on the Product Documentation CD that ships with the product and is published on the Tektronix Web site See page vii Related Manuals The base instrument has no hardware upgrade options Software options are available to add capabilities such as audio and advanced gamut monitoring For a complete list of options refer to the WVR5200 Waveform Rasterizer User Manual This product is to be rack mounted For installation instructions refer to the WVR5200 Waveform Rasterizer Installation and Safety Instructions WVR5200 Waveform Rasterizer Service Manual 1 Introduction Product Upgrade Operating Information Power On Procedure Power Down Procedure Software upgrades are available for all products as free software downloads from the Tektronix Web site The WVR5200 Waveform Rasterizer User Manual includes instructions for updating product software If you would like to purchase additional f
34. peration 1s based on the high level block diagram See Figure 1 The primary functions on the CPU board are Control processor kernel B Front panel interface m Fan controller Headphones output and control m USB and network connections m Various secondary power supplies The primary functions on the SDI board are m SDI input signal conditioning Input power conditioning and control The primary functions on the FPGA board are B Serial digital input processing m Waveform and picture processing for display DVI output Reference input data processing m SDI output generation The block diagram reflects the physical arrangement of circuit boards with the CPU board at the bottom the SDI board in the center and the FPGA board at the top Connectors to the External Reference and Front Panel boards are shown Power Distribution is not shown in the block diagram but is covered at the end of this section Theory of Operation External Reference Loop Through Ground Closure Interface incl LTC SD HD 3G OUT DVI I OUT 2 SD HD 3G IN 1A SD HD 3G IN 1B J5 SD HD 3G IN 2 SD HD 3G IN 2B 12VDC IN 10V 17V jr J12 J9 REF IO BOARD SYNC gt SEP L p d MUX gt SLICER PRESETS GCI OUT FUTURES
35. pliers Used for replacing CPU board fuses Used to compress connector lock tabs Standard tool Standard tool WVR5200 Waveform Rasterizer Service Manual 23 Removal and Replacement Procedures Module Removal The removal of most of the modules is a straightforward process and can be determined by a quick study of the exploded diagram in the Replaceable Parts List See Figure 4 The boards need to be removed in the order listed here Topcover 1 Remove the five flat head 40 X 0 188 T8 screws on the front edge of the top cover When reinstalling tighten these to 8 in Ib 2 Remove the four flat head T8 screws on the left side of the top cover and the four flat head T8 screws on the right side 3 Liftthe top cover up off the instrument Rear panel and reference Turn the instrument over On the bottom side of the main chassis remove the Board three flat head 40 X 0 188 T8 screws that attach the rear panel to the chassis When reinstalling tighten these to 8 in Ib 2 Turn the instrument right side up Remove the two flat head 40 X 0 375 T8 screws that secure the 11 17 VDC XLR connector to the rear panel When reinstalling tighten these to 5 5 in Ib 3 Using a 9 16 wrench remove the nut and lock washers from the four SDI female BNC connectors 4 Using a 3 16 nut driver remove the 2 DVI jack screws 5 Remove the nut and lock washer from the SDI Out female BNC connector 6 Carefully disconnect the
36. re referenced by figure and index numbers to the exploded view illustrations that follow Orderable modules show the figure number without an index number 2 Tektronix part number Use this part number when ordering replacement parts from Tektronix 3 and 4 Serial number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entry indicates the part is good for all serial numbers 5 Qty This indicates the quantity of parts used 6 Name amp description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972 30 WVR5200 Waveform Rasterizer Service Manual Fig amp index Tektronix part Replaceable Parts number number Qty Name amp description 5 1 1 174 5921 00 1 CABLE FPGA TO REF IO 40 PIN 2 211 1117 00 8 SCREW MACHINE 4 40 X 0 187 PAN HEAD STEEL ZINC FINISH T 10 TORX DR 3 214 4748 00 2 HEAT SINK SEMIC IC PGA 11X11 MQUAD 27MM BGA 1 1 X 1 1 X 0 25 H PIN FIN AL BLACK ANODIZE 4 863 6501 01 1 CIRCUIT BOARD SUBASSY FPGA 5 129 1713 00 6 SPACER POST 276 L 4 40 M F 188 HEX 6 863 6503 01
37. s Table i Related documentation Item WVR5200 Waveform Rasterizer User Manual This manual supports servicing to the module level ofthe WVR5200 Waveform Rasterizer which rasterizes video signals for XGA display The instrument finds use as a monitor for broadcasting production and post production environments This manual explains how to troubleshoot and service the instrument to the module level The manual is divided into the following sections m Introduction provides a general product description and tells where to find product installation information Theory of Operation provides descriptions of the instrument modules m Maintenance tells you how to troubleshoot the product to the module level and how to handle the modules Replaceable Parts illustrates the replaceable modules and mechanical parts and provides replacement part numbers The following terms and conventions are used throughout this manual m The terms rasterizer and instrument are is used interchangeably to refer to the WVR5200 Waveform Rasterizer This manual assumes you have access to the following manuals when servicing this product These manuals ship with the product and are also downloadable from the Tektronix Web site Purpose Location Product Documentation CD www tektronix com manuals Operation instructions and explanation of features WVR5200 Waveform Rasterizer Installation and Safety Instructions English Japanese Simpli
38. s with option 3G require a 3 Gb s SDI source Power Supply external FPGA board CPU board SDI board External Reference I O board Requirements 1080p 59 94 3 Gb s signals required m 100 color bars m SDI Matrix Split Field Pathological Signal Example Tektronix TG700 with an HD3G7 module Embedded audio needed for audio options 1080i 59 94 HD signals required 100 color bars m 10 bit shallow ramp SDI Matrix Split Field Pathological Signal 100 sweep Tektronix TG700 with HDVG7 module Embedded audio needed for audio options 525 270 SD signals required 100 color bars 10 bit shallow ramp SDI Matrix Pathological Signal m 100 sweep Tektronix TG700 with DVG7 module Embedded audio needed for audio options XGA Monitor Computer monitor capable of 1024 x 768 x 60 Hz scan rate Voltmeter Fluke 87 or equivalent Oscilloscope Video trigger capability Tektronix TDS3000C Series Tektronix DPO70404 14 5200 Waveform Rasterizer Service Manual Table 4 Symptoms and causes Symptom Troubleshooting Possible cause or detailed troubleshooting procedure to follow No LEDs lit and no external display Perform General Checks Perform Power Switch Checks Perform Basic Power Supply checks Some LEDs lit but no external display Perform General Checks Verify external monitor functionality with another XVGA source Perform Basic Power Supply Fault Checks Perf
39. t for Repair action Circuit boards Loose broken or corroded solder connections Burned circuit boards Burned broken or cracked circuit run plating Remove and replace damaged circuit board Resistors Burned cracked broken Remove and replace blistered condition damaged circuit board Solder connections Cold solder or rosin joints Resolder joint and clean WVR5200 Waveform Rasterizer Service Manual with isopropyl alcohol General Maintenance Table 2 Internal inspection check list cont Item Inspect for Repair action Capacitors Damaged or leaking cases Remove and replace Corroded solder on leads damaged circuit board terminals Wiring and cables Loose plugs or connectors Firmly seat connectors Burned broken or frayed Repair or replace modules wiring with defective wires or cables Chassis Dents deformations and Straighten repair or replace damaged hardware defective hardware Cleaning Procedure Interior To clean the instrument interior perform the following steps 1 2 Lub Blow off dust with dry low pressure deionized air approximately 9 psi Remove any remaining dust with a lint free cloth dampened in isopropyl alcohol 75 solution and rinse with warm deionized water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP Jf after doing steps 1 2 a module is clean upon inspection skip the rema
40. tenance is just before any instrument adjustment The cabinet helps keep dust out and should normally be in place during operation WARNING 70 prevent injury or death power off the instrument and disconnect it from line voltage before performing any procedure that follows Use a dry low velocity stream of air to clean the interior of the chassis Use a soft bristle non static producing brush for cleaning around components If you must use a liquid for minor interior cleaning use a 75 isopropyl alcohol solution and rinse with deionized water Clean the exterior surfaces of the chassis with a dry lint free cloth or a soft bristle brush If any dirt remains use a cloth or swab dipped in a 75 isopropyl alcohol solution Use a swab to clean narrow spaces around controls and connectors Do not use abrasive compounds on any part of the instrument that may damage the chassis CAUTION Avoid the use of chemical cleaning agents that might damage the plastics used in the instrument Use only deionized water when cleaning the front panel buttons Use a 7526 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 WVR5200 Waveform Rasterizer Service Manual General Maintenance Inspection Exterior Inspect the outside of the instrument for damage wear and missing parts using the following table as a guide Immediately
41. the Service Center Contact the Service Center to get an RMA Return Material Authorization number and any return or shipping information you may need If the instrument is being shipped to a Tektronix Service Center enclose the following information The RMA number B The owner s address Name and phone number of a contact person Type and serial number of the instrument m Reason for returning A complete description of the service required Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations WVR5200 Waveform Rasterizer Service Manual 27 Repackaging Instructions 28 WVR5200 Waveform Rasterizer Service Manual Replaceable Parts This section contains a list of the replaceable modules for your instrument Use this list to identify and order replacement parts Note that not all parts listed in this section are present on every model The parts present will depend on the model and options installed Parts Ordering Information Module Servicing Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements Therefore when ordering parts it is important to include the following information in your order m Part number Instrument type or model numb
42. tics response characteristics The audio data has two paths to the display On one path peak values are read by the control processor which then plots the bar and surround displays On the second path raw data samples are sent to the waveform processing engine which interpolates and plots it to generate the lissajous or phase display WVR5200 Waveform Rasterizer Service Manual Theory of Operation Fan Control There are multiple temperature sensors in different locations in the instrument The control processor reads the temperature sensors and sets a target speed for the fans The fan circuit holds the fan speed at the target by measuring the fan tachometer output allowing reliable operation at low speed Ifa fan is not turning the circuit senses the stall and turns on a red LED DS2 or DS3 on the CPU board The fans are tested at power on If a fan fails a message is shown on screen and also entered into the diagnostic log Power Supply and Distribution External power may be supplied by either the provided power module or a customer supplied 11 17 V DC power source Protection circuits include a self resetting fuse transient filtering and limiting over and under voltage protection and current limiting A latching relay controls standby mode The nominal 12 V DC input powers 5 V and 3 3 V supplies three voltages are distributed to the CPU and FPGA boards to power circuits as well as lower voltage local regulators
43. tons are lit or respond to presses 1 Cycle the power to the unit Immediately after power on three buttons GAIN SWEEP and MAG should be lit continuously and the other buttons should be lit one at a time in a walking pattern 2 Ifthe buttons are not lit check the 10 pin cable from the keypad to the main board J21 If the cable is connected and good then replace the front panel assembly WVR5200 Waveform Rasterizer Service Manual 21 Removal and Replacement Procedures Removal and Replacement Procedures This section contains information about removal and replacement of all modules in the instrument Preparation WARNING Before doing this or any other procedure in this manual read the safety summaries found at the beginning of this manual Also to prevent possible injury to service personnel or damage to the instrument components read Installation in Section 2 and Preventing ESD in this section This subsection contains the following items B This preparatory information that you need to properly do the procedures that follow List of tools required to remove and disassemble all modules Procedures for removal and reinstallation of the modules WARNING Before doing any procedure in this subsection disconnect the power cord from the line voltage source Failure to do so could cause serious injury or death NOTE Read Equipment Required for a list of the tools needed to remove and install modules
44. uit boards and components Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive boards Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules Do service of static sensitive modules only at a static free work station Nothing capable of generating or holding a static charge should be allowed on the work station surface Handle circuit boards by the edges when possible WVR5200 Waveform Rasterizer Service Manual 9 General Maintenance 6 Do not slide the circuit boards over any surface 7 Avoid handling circuit boards in areas that have a floor or work surface covering capable of generating a static charge Inspection and Cleaning General Care Interior Cleaning Exterior Cleaning 10 Inspection and Cleaning describes how to inspect for dirt and damage It also describes how to clean the exterior and interior of the instrument Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent malfunction and enhance reliability Preventive maintenance consists of visually inspecting and cleaning the instrument and using general care when operating it How often maintenance should be performed depends on the severity of the environment in which the instrument is used A proper time to perform preventive main
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