Tektronix WVR8200 Service Manual Download Page 2

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Summary of Contents for WVR8200

Page 1: ...xx WVR8200 and WVR8300 Waveform Rasterizers and WVR8RFP Remote Front Panel ZZZ Service Manual P077039400 077 0394 00 ...

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Page 3: ...WVR8200 and WVR8300 Waveform Rasterizers and WVR8RFP Remote Front Panel ZZZ Service Manual xx www tektronix com 077 0394 00 ...

Page 4: ...d 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 In North America call 1 800 833 ...

Page 5: ...s 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...

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Page 7: ... 1 2 Product Upgrade 1 2 Operating Information 1 2 Theory of Operation Theory of Operation 2 1 Main Board 2 3 Front Panel 2 4 Composite Input Option CPS 2 4 Audio Options AD and DPE 2 4 Option EYE PHY 2 5 Fan Control 2 8 Power Supply and Distribution 2 8 Adjustment Procedures Adjustments 3 1 Required Equipment 3 1 Procedures 3 1 Maintenance General Maintenance 4 1 Preventing ESD 4 1 Inspection and...

Page 8: ... 4 10 Repackaging Instructions 4 22 Packaging 4 22 Shipping to the Service Center 4 22 Replaceable Parts Replaceable Parts 5 1 Parts Ordering Information 5 1 Using the Replaceable Parts Lists 5 2 ii WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 9: ...component side 4 20 Figure 4 3 Options AD and DPE Audio board back side indicator LED and test point locations 4 21 Figure 5 1 Replaceable parts standard 5 5 Figure 5 2 Replaceable parts standard 5 7 Figure 5 3 Replaceable parts options 5 9 Figure 5 4 Replaceable parts WVR8RFP Remote Front Panel 5 13 Figure 5 5 Analog audio breakout cable assembly 5 14 WVR8200 and WVR8300 Waveform Rasterizers Serv...

Page 10: ...pection check list 4 3 Table 4 2 Internal inspection check list 4 3 Table 4 3 Required test equipment 4 6 Table 4 4 Symptoms and causes 4 6 Table 4 5 Main board secondary supplies 4 12 Table 4 6 Audio board secondary supplies 4 13 iv WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 11: ...r 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 rem...

Page 12: ...s 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 Symbols and Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as yo...

Page 13: ...f 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 ...

Page 14: ...Service Safety Summary viii WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 15: ...out this manual The terms rasterizer and instrument are is used interchangeably to refer to the WVR8200 and WVR8300 Waveform Rasterizers Where information is model specific to either the WVR8200 or WVR8300 model it is indicated as such See page 1 1 Configurations Related Manuals This manual assumes you have access to the following manuals when servicing this product These manuals ship with the pro...

Page 16: ...cation Procedure for checking performance and list of specifications Product Documentation CD www tektronix com manuals WVR and WFM Series Master Information Base MIB Programmers command reference for controlling the waveform rasterizer Product Documentation CD www tektronix com manuals x WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 17: ...Introduction ...

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Page 19: ...for this product are found in the WVR8200 and WVR8300 Waveform Rasterizers 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 ix Related Manuals Options and Accessories The lists of options and accessories for this product are found in the WVR8200 and WVR8300 Wavefor...

Page 20: ...form Rasterizers 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 Power On Procedure 1 Connect the supplied power cord to the rear panel power connector 2 Press the power button on the instrument front panel and th...

Page 21: ...Theory of Operation ...

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Page 23: ...renced The lower portion of the block diagram covers functions on the main board The upper sections cover those of the optional video input and audio boards The primary functions on the main board are 1 Serial digital input processing 2 Reference input 3 Waveform processing engine 4 Rasterizing recursion and picture processing engine 5 Control processor and its associated peripherals 6 Auxiliary a...

Page 24: ...heory of Operation Power Distribution is not shown in the block diagram but is covered at the end of this section Figure 2 1 Main block diagram 2 2 WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 25: ...plays 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 hit more frequently are brighter For any given fr...

Page 26: ...he selected input signal is filtered and applied to an A to D converter to generate a 14 bit parallel signal which is routed to the DSP FPGA on the Main board where it is demodulated in the digital domain Audio Options AD and DPE The audio option if installed resides on the upper mezzanine board There are two audio options available Option AD adds Analog Audio Monitoring 2 sets of 6 channel Analog...

Page 27: ...ser can choose to have the de embedded audio output on the AES B port Audio Outputs There are two audio outputs Analog and AES Both outputs always follow the source that is currently selected for the audio bar display The analog outputs can come from any input The selected signal output from the FPGA is converted from digital to analog and then sent as a balanced output to the 62 pin rear panel an...

Page 28: ...lso applied to a clock recovery circuit The recovered clock is divided by 10 for SD by 20 for HD filtered to form a sine wave and then digitized Both the SDI input and the recovered clock sine wave are sampled by the same asynchronous clock and then both are passed to the main board for processing by FPGAs These arrays produce the Eye Display Jitter Display Jitter Readout and Jitter Thermometer Th...

Page 29: ...Theory of Operation Figure 2 2 Option EYE PHY block diagram WVR8200 and WVR8300 Waveform Rasterizers Service Manual 2 7 ...

Page 30: ...he Main 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 The power supply has a universal AC input enabling it to accommodate 90 to 264 VAC without any user range switching The output is 5 VDC Circuits convert this output to any other supply voltage that they require at the point of usage Fuses ...

Page 31: ...Adjustment Procedures ...

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Page 33: ...Restore Off Option CPS only Composite Analog Vertical Measurement Accuracy Option CPS only Composite Analog Frequency Response Option CPS only Analog Audio Level Meter Accuracy Over Frequency Options AD and DPE only After making the adjustment shown here repeat the failed Performance Verification step Required Equipment These adjustment procedures require the same equipment as the Performance Veri...

Page 34: ...R Null calibration as described below 1 Press the CONFIG button 2 Select Utilities Calibration and press SEL to enter the Calibration menu 3 Use the arrow buttons to navigate to the appropriate Eye CDR Null calibration case 4 Press SEL to start and follow the on screen instructions 5 Follow the instructions at the bottom of the screen to Save and Exit Calibration mode 6 Restart the Jitter Noise Fl...

Page 35: ...Control Setting Vert 200 mV Div Horiz 20 μs Div Trigger Edge 5 Press the Config button 6 Select Utilities Calibration Press SEL to enter the calibration menu 7 Navigate to the Pixmon YPbPr Gain calibration case and press SEL to start 8 Adjust the oscilloscope trigger level for a stable display 9 Use the General knob to adjust the signal amplitude not including the sync pulse to 700 mV on the oscil...

Page 36: ...lat Field or 100 Color Bars to the SDI A input 2 Connect an XGA to 5x BNC adapter cable to the PixMon output 3 Connect the Pb Blue video signal to the oscilloscope input Use an oscilloscope with a 75 Ω input or a 75 Ω feed through termination 4 Set the Oscilloscope Control Setting Vert 200 mV Div Horiz 20 μs Div Trigger Edge 5 Press the Config button 6 Select Utilities Calibration Press SEL to ent...

Page 37: ...Select Composite Waveform Gain and then press SEL 5 Follow the on screen instructions to adjust the gain 6 Follow the instructions at the bottom of the screen to Save and Exit Calibration mode Composite Analog Frequency Response Option CPS Perform the following steps if the Frequency Response is outside the specification 1 Connect the precision video generator to one of the CMPST A input connector...

Page 38: ...alog A input that requires adjustment 3 Press the CONFIG button 4 Navigate to Utilities Calibration and then press SEL 5 Push the up or down arrow key until the desired Analog Audio input channel is highlighted and then press SEL 6 Follow the instructions at the bottom of the screen to Save and Exit calibration mode 7 Check for an indication of 18 dBu in the newly adjusted audio bar 8 If multiple ...

Page 39: ...Maintenance ...

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Page 41: ... this product read the Safety Summary and Introduction at the front of the manual and the ESD information below CAUTION Static discharge can damage any semiconductor component in the instrument 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 M...

Page 42: ...jury or death power off the instrument and disconnect it from line voltage before performing any procedure that follows Interior Cleaning 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 deioniz...

Page 43: ...r 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...

Page 44: ...tion skip the remaining steps 3 If steps 1 and 2 do not remove all the dust or dirt the instrument may be spray washed using a solution of 75 isopropyl alcohol by doing steps 4 through 6 4 Gain access to the parts to be cleaned by removing easily accessible shields and panels 5 Spray wash dirty parts with the isopropyl alcohol and wait 60 seconds for the majority of the alcohol to evaporate 6 Dry ...

Page 45: ...t step is to recall the Factory Presets To do this press PRESET Recall Preset Recall Factory Preset To properly test this instrument you must have a known good XGA monitor and appropriate signal sources Depending on what portion of the instrument you are testing this might include Composite Video Serial Digital Video Analog Audio or Digital Audio In some cases you may also need receivers or an osc...

Page 46: ...lor bars 10 bit shallow ramp SDI Matrix Split Field Pathological Signal 100 sweep Tektronix TG700 with DVG7 module Embedded audio needed for audio options AES Audio Signal Generator If any audio option installed 48 kHz 24 bit word length signals Rohde Schwarz UPV Tektronix AM700 and AM70 Analog Audio Signal Generator Rohde Schwarz UPV Tektronix AM700 and AM70 Voltmeter Fluke 87 or equivalent DC Am...

Page 47: ...ary power supply checks Perform secondary power supply checks Run Advanced Diagnostics and look for other information Replace the main board Fails any of these Power On Diagnostics Composite DAC Comm Composite SPI Comm Front Panel Version Information Review messages in diagnostic log Perform primary power supply checks Perform secondary power supply checks Run Advanced Diagnostics and look for oth...

Page 48: ...mory 1 DSP2 QDR2 Memory 2 DSY DDR Buffer 1 Memory DSY DDR Buffer 2 Memory DSY DDR Trig Buffer Memory DSY SDRAM Buffer 1 Memory DSY SDRAM Buffer 2 Memory Perform secondary power supply checks Replace main board Diagnostic Log Message Fail AUDIO_DSP_HEARTBEAT Search for an intermittent problem in the audio board cables or main board No text or traces on display Replace Main board 4 8 WVR8200 and WVR...

Page 49: ...ilures If the problem persists replace the audio 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 Chec...

Page 50: ...are 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 on the Main board lights Fan 1 fails LED DS12 lights Fan 2 fails LED DS11 lights Fan 3 fails LED DS23 lights Fan 4 fails LED DS22 lights A fan failure is sensed through tachometer feedback a fault wil...

Page 51: ...o several red LEDs that provide information on the health of other supplies on the board DS5 is a red LED that lights when the fused 5 V supply is low DS6 lights when the 3 3 V supply is low and DS7 indicates when the 1 5 V supply is low If the main power supply output is correct between 4 80 V and 5 25 V measured at connector J17 check the eight fuses in the 5 V system near the main board power c...

Page 52: ... that are derived from the main 5 V supply Be sure all eight 5 V fuses are good as noted in Primary Power Supply Tests before checking the secondary supplies First check that the green LED DS19 is on which indicates there is some 5 V from the main supply Next check if any of the three red LEDs DS5 DS6 or DS7 are on These indicate failures on the general 5 V general 3 3 V and processor 1 5 V suppli...

Page 53: ...t in some operating modes Front Panel Button Troubleshooting Perform this test if the power supplies are good but none of the buttons are lit or respond to presses 1 Cycle the power to the unit Immediately after power on the buttons should be lit one at a time in a walking pattern 2 If the buttons are not lit check the 10 pin cable from the keypad to the main board J7 If the cable is connected and...

Page 54: ...ported audio errors If any errors are found perform the following procedure to narrow the problem to either the audio board the main board or the connection between them 1 Prepare a test oscilloscope with the following settings Control Setting Vertical Scale 2 00 V div Horizontal Scale 5 00 µs div 2 If the diagnostic log contains an entry that reads Fail Audio DSP Self Test fpga do the following s...

Page 55: ...ng Utilities View HW SW Version b If there is an audio option listed suspect the audio board otherwise proceed to step c c Probe pins 3 through 14 on the main board connector J26 and verify that the signals on all pins are toggling If any signals are not toggling replace the main board If they all are toggling check them again on the audio board J200 If any of the signals do not toggle on the audi...

Page 56: ...e check them again on the audio board J200 If any of the signals on the pins do not toggle on the audio board replace the cable e Probe pin 27 on the audio board connector J200 If the signal on the pin does not toggle replace the audio board otherwise check it again on the main board connector J26 If the signal on pin 27 does not toggle on the main board then replace the cable otherwise replace th...

Page 57: ...le if it is as described replace the main board 3 Check the Lissajous bus frame and data signals by performing these substeps a Put the oscilloscope probe on connector J200 pin 61 of the audio board and verify the signal is 3 Vp p and toggles low at regular intervals b If the signal on pin 61 looks OK put the oscilloscope probe on pin 63 Pin 63 is the data line and the signal will have a somewhat ...

Page 58: ... and measurement functions If other EYE PHY functions operate correctly then a cable meter circuit problem is indicated Replace the EYE PHY board Jitter Readout and Jitter Meter Problems These measurements are derived from sampled recovered clock sine wave data Operation is unlikely to fail if the basic Eye pattern display works correctly Measurement accuracy is not adjustable but jitter noise flo...

Page 59: ...General Maintenance Figure 4 1 Main board indicator LED connector and test point locations WVR8200 and WVR8300 Waveform Rasterizers Service Manual 4 19 ...

Page 60: ...General Maintenance Figure 4 2 Options AD and DPE Audio board component side 4 20 WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

Page 61: ...General Maintenance Figure 4 3 Options AD and DPE Audio board back side indicator LED and test point locations WVR8200 and WVR8300 Waveform Rasterizers Service Manual 4 21 ...

Page 62: ...ng carton with an industrial stapler or strapping tape Shipping to 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 The owner s address Name and phone number of a contact person Type and...

Page 63: ...Replaceable Parts ...

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Page 65: ... 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 Module Servicing 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 modu...

Page 66: ...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 description An item name is separat...

Page 67: ... BOW AL 1 0 X 1 25 STAIN FINISH SAFETY CONTROLLED 15 211 0721 00 4 SCREW MACHINE 6 32 X 0 375 PNH STL CDPL T 15 TORX DR 16 213 0216 00 2 THUMBSCREW 10 32 X 0 85 0 375 OD HD SST W SLOT 17 354 0025 00 1 RING RETAINING EXTERNAL U O 0 187 DIA SFT 18 311 2607 00 1 ENCODER DIGITAL CONTACTING ENCODER 24 CPR 24 DETENTS 6 MM DIA SHAFT 17 5 MM LENGTH SHAFT 12 MM BODY SIZE TOP MOUNT RE0123 19 311 2580 00 2 E...

Page 68: ...MACHINE 6 32 X 0 250 PNH STL CDPL T 15 TORX DR 33 337 4469 00 1 SHIELD POWER SUPPLY TOP 0 030 POLYCARBONATE SAFETY CONTROLLED 34 407 5545 00 1 BRACKET CABLE RETAINER 35 119 7441 00 4 FAN ASSEMBLY DC 12V 0 105A 8 6 CFM 30DBA 3 LEAD TACH OUTPUT WITH CONN HOUSING SAFETY CONTROLLED 36 211 1161 00 8 SCREW MACHINE 4 40 X 1 500 PAN HEAD T 10 TORX ZINC PL 37 407 5375 00 1 BRACKET FAN MOUNTING 0 050 AL SAF...

Page 69: ...Replaceable Parts Figure 5 1 Replaceable parts standard WVR8200 and WVR8300 Waveform Rasterizers Service Manual 5 5 ...

Page 70: ... X 0 13 TAIL 10 100 1000 BASE TX AND RX MAGNETICS MODULE 30 GOLD SAFETY CONTROLLED 12 131 3925 00 1 CONN DSUB PCB FEMALE RTANG 9 POS 0 112 CTR 0 318 MLG X 0 125 TAIL 4 40 THD INSERT BD RETENTION 30 GOLD 13 131 8276 00 1 CONN DSUB PCB FEMALE RTANG DUAL STACKED 15 POS HD LOWER 15 POS HD UPPER 14 337 4510 00 1 SHIELD INSULATOR MAIN 15 210 1039 00 7 WASHER LOCK 0 521 ID INT 0 025 THK STEEL ZINC FINISH...

Page 71: ...Replaceable Parts Figure 5 2 Replaceable parts standard WVR8200 and WVR8300 Waveform Rasterizers Service Manual 5 7 ...

Page 72: ...ASSEMBLY 100 TO 80 POSITION MAIN TO AUDIO PCB 9 211 0722 00 3 SCREW MACHINE 6 32 X 0 250 PNH STEEL ZINC FINISH T 15 TORX DR 10 129 1570 00 3 POST SPACER 1 385 X 0 250 X 0 375 DEEP Options EYE and PHY 11 863 0321 01 1 CIRCUIT BD SUBASSY WVR EYE 389423100 TESTED ROHS COMPLIANT 12 131 M057 00 4 CONN RF PCB FEMALE BNC 75OHM EDGE LAUNCH TYPE 13 210 1039 00 4 WASHER LOCK 0 521 ID INT 0 025 THK STEEL ZIN...

Page 73: ...Replaceable Parts Figure 5 3 Replaceable parts options WVR8200 and WVR8300 Waveform Rasterizers Service Manual 5 9 ...

Page 74: ... ROHS 071 2589 xx 1 MANUAL TECH A PRINTED SHEET WITH MULTILANGUAGE POINTERS TO THE TEKTRONIX WEBSITE FOR ONLINE RELEASE NOTES 011 0163 00 2 TERM COAXIAL BNC TERMINATION SINGLR ENDED 75 OHM 26DB TO 2GHZ 50 OHM INTERMATABLE 013 0347 00 1 ADAPTER CONN VGA FEMALE TO DVI MALE DISPLAY CABLE ASSY POWER OPTION COUNTRY P N A0 N AMERICA 161 0216 00 A1 UNIV EURO 161 0215 00 A2 UK 161 0066 10 A3 AUSTRALIA 161...

Page 75: ...INE 4 40 X 0 312 PNH STEEL ZINC FINISH TORX T10 14 311 2607 00 1 ENCODER DIGITAL CONTACTING ENCODER 24 CPR 24 DETENTS 6 MM DIA SHAFT 17 5 MM LENGTH SHAFT 12 MM BODY SIZE TOP MOUNT RE0123 15 311 2580 00 2 ENCODER DIGITAL CONTACTING ENCODER 24 CPR NON DETENTED 6 MM DIA SHAFT 17 5 MM LENGTH SHAFT 12 MM BODY SIZE TOP MOUNT RE0123 16 366085901 3 ASSEMBLY KNOB 470 DIAMETER SOFT TOUCH 17 260289000 1 SWIT...

Page 76: ...R 3 1 0 MM SQ 250V 10A 2 5 METER STR IEC320 RCPT X 13A FUSED UK PLUG 13A FUSE UNITED KINGDOM SAFETY CONTROLLED 161 0066 13 Option A3 Australia CABLE ASSY PWR 3 1 0 MM SQ 250V 10A 2 5 METER STR IEC320 RCPT AUSTRALIA SAFETY CONTROLLED INSULATED PINS 161 0154 00 Option A5 Switzerland CA ASSY PWR 3 1 0MM SQ 250V 10A 2 5 METER STR IEC320 RCPT SWISS SAFETY CONTROLLED 161 0298 00 Option A6 Japan CABLE AS...

Page 77: ...Replaceable Parts Figure 5 4 Replaceable parts WVR8RFP Remote Front Panel WVR8200 and WVR8300 Waveform Rasterizers Service Manual 5 13 ...

Page 78: ...able Optional Accessory 1 012 1688 00 1 CABLE ASSEMBLY ANALOG AUDIO BREAKOUT 2 200 4804 00 1 COVER SHIELD ELEC CONN 37 POS DSUB ZINC 3 131 0422 00 1 CONN DSUB SLDR CUP PNL MALE STR 37 POS 0 112 CTR 0 186 H X 0 126 TAIL 0 125 DIA THRU MTG Figure 5 5 Analog audio breakout cable assembly 5 14 WVR8200 and WVR8300 Waveform Rasterizers Service Manual ...

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