Tektronix WVR6020, WVR7120, WVR7000 Opt. MB, WVR7020, WVRRFP Service Manual

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WVR6020, WVR7020, WVR7120, WVR6100 Opt. MB, WVR7000 Opt. MB, and WVR7100 Opt. MB Waveform Rasterizers, and

ZZZ

WVRRFP Remote Front Panel

Service Manual

*P077223500*

077-2235-00

WVR6020, WVR7020, WVR7120, WVR6100 Opt. MB, WVR7000 Opt. MB, and WVR7100 Opt. M B Waveform Rasterizers, and

ZZZ

WVRRFP Remote Front Panel

Service Manual

Revision A

www.tektronix.com

077-2235-00

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Speciﬁcations and price change privileges reserved.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14200 SW Karl Braun Drive P.O. B o x 5 0 0 Beaverto USA

For product information, sales, service, and technical support:

n, OR 97077

In North America, call 1-800-833-9200. Worl dwid e, vis it www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this p roduct 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 used by Tektronix for warranty work may be n the property of Tektronix.

ew or reconditioned to like new performance. All replaced parts, modules and products become

In order to o 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 result 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 integration 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.

TRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE

TEK AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR A NY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE O F THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of

ing from attempts by personnel other than Tektronix representatives to install, repair or service the product;

Table of Contents

General Safety Summary .......................................................................................... v

Service Safety Summary.................... ................................ ................................ ..... vii

Preface.............................................................................................................. ix

Manual Conventions...................................... ................................ .................... ix

Related Manuals ........ .................................. ................................ .................... ix

Introduction

Introduction ....................................................................................................... 1-1

Service Strategy..... .................................. ................................ ....................... 1-1

Speciﬁcations................................ ................................ ................................. 1-1

Performance Veriﬁcation................. ................................ .................................. . 1-1

Options and Accessories .................................................................................... 1-1

Conﬁgurations................................................................................................ 1-1

Hardware Installation............................. .................................. ......................... 1-2

Product Upgrade ............................................................................................. 1-2

Operating Information....................................................................................... 1-2

Theory of Operation

Theory of Operation. ................................ ................................ ............................. 2-1

Serial Digital Input ......... .................................. ................................ ............... 2-2

Composite Input ............................................................................................. 2-2

Reference Input .............................................................................................. 2-2

Digital Waveform Processing Engine .......................... ................................ ........... 2-2

Rasterizing Engine........................................................................................... 2-4

Recursion and Picture Processing Engine................................................................. 2-4

Control Processor ............................................................................................ 2-4

Front Panel ...... ................................ ................................ ............................. 2-5

LTC........................... ................................ .................................. ............... 2-5

Audio Option Board ................ ................................ ................................ ......... 2-5

Audio Processing ..... ................................ ................................ ....................... 2-6

Audio Inputs..................... .................................. ................................ ........... 2-6

Audio Outputs................................................................................................ 2-6

Option EYE/PHY............................................................................................ 2-6

Fault LED and

Power Supply and Distribution........................................................................... 2-10

Fan Block Diagram....................................... ................................ . 2-8

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual i

Table of Contents

Adjustment Procedures

Adjustments....................................................................................................... 3-1

Maintenance

General Mai

Preventing ESD .............................................................................................. 4-1

Inspection and Cleaning.................................... .................................. ............... 4-2

Troubleshooting... ................................ ................................ ........................... 4-5

Detailed Troubleshooting Procedures ................................................................... 4-11

Repackaging Instructions ...................................................................................... 4-27

Packagi

Shipping to the Service Center.... ................................ .................................. ..... 4-27

ntenance............ ................................ .................................. ............... 4-1

ng.................. .................................. ................................ ............... 4-27

Replaceable Mechanical Parts

Replaceable Parts ................ ................................ ................................ ................. 5-1

Ordering Information ................................................................................. 5-1

Parts

Using the Replaceable Parts Lists.......................................................................... 5-2

ii WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

List of Figures

Figure 2-1: WVR7020, WVR7120, and WVR6020 Waveform Rasterizers block diagram ............. 2-3

Figure 2-2: High-level fault and fan block diagram .......................................................... 2-9

Figure 4-1: Main board indicator LED, connector, and test point locations.. ........................... 4-23

Figure 4-2:

Figure 4-3: Options AD and DDE Audio board back side indicator LED and test point locations ... 4-25

Figure 4-4: Front panel board indicator LED locations (viewed from back side)....................... 4-26

Figure 5-1: Replaceable parts, circuit boards and chassis ................................................... 5-5

Figure 5-2: WVR6020, WVR7020, and WVR7120 replaceable cables, connectors, and other mechanical

parts ........................................................................................................... 5-7

Figure 5

WVR6020 ............... ................................ ................................ ..................... 5-9

Figure 5-4: Option EYE/PHY and Audio Options boards and connectors .............................. 5-11

Figure 5-5: Audio board component-side components, Options AD and DDE .... ..................... 5-13

Figure 5-6: Audio board back-side components, Options AD and DDE.......... ....................... 5-15

Figure 5-7: WVRRFP................. ................................ .................................. ....... 5-17

re 5-8: Analog audio breakout cable assembly ........................................................ 5-18

Figu

Options AD and DDE Audio board, component side ........................................ 4-24

-3: Main board replaceable components and connectors, WVR7020, WVR7120, and

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual iii

Table of Contents

List of Tables

Table i: Related documentation .................................................................................. ix

Table 2-1: S

Table 4-1: External inspection 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............................................................................... 4-7

Table 4-5: Circuits that can assert faults .............................. .................................. ..... 4-12

Table 4-6

Table 4-7: Analog supplies........... ................................ ................................ ......... 4-15

Table 4-8: Audio secondary supplies......................................................................... 4-15

upported audio options ............................................................................ 2-5

: Digital secondary supplies ............................. ................................ ........... 4-15

iv WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Safety Summary

General Safet

To Avoid Fire or Personal

Injury

ySummary

Review the fo this product or any products connected to it.

To avoid pot

Only qualiﬁed personnel should perform service procedures.

While using this product, you may need to a ccess other parts of a larger system. Read the safety sections of the other component manuals for warnings and cautions r

Use Proper Power Cord. Use only the power cord speciﬁed for this product and certiﬁed for the country of use.

Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

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.

llowing safety precautions to avoid injury and prevent damage to

ential hazards, use this product only as speciﬁed.

elated to operating the system.

Observe All Terminal Ratings. To avoi d ﬁre or shock hazard, observe all ratings and markings on the product. Consult the product manual for further ratings

ormation before making connections to the product.

inf

Do not apply a potential to any terminal, including the common terminal, that

eeds the maximum rating of that terminal.

exc

Power Disconnect. The power cord disconnects the product from the power source.

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

emoved.

Do Not Operate With Suspected Failures. If you suspect that there is d amage to this product, have it inspected by qualiﬁed servic e personnel.

Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.

Replace Batteries Properly. Replace batteries only with the speciﬁed type and rating.

Recharge Batteries Properly. Recharge batteries for the recommended charge cycle only.

Use Proper Fuse. Use only the fuse type and rating speciﬁed for this product.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual v

General Safety Summary

TermsinthisManual

Symbols and Terms on the

Product

Wear Eye Protec

laser radiation exists.

Do Not Operate

Do Not Operate in an Explosive Atmosphere.

Keep Product Surfaces Clean and Dry.

Provide Pro

details on installing the product so it has proper ventilation.

These terms may appear in this manual:

WARNING.

in injury or loss of life.

CAUTIO

damage to this product or other property.

These

N. Caution statements identify conditions or practices that could result in

terms may appear on the product:

DANGER indicates an injury hazard immediately accessible as you read the m

tion. Wear eye protection if exposure to high-intensity rays or

in Wet/Damp Conditions.

per Ventilation. Refer to the manual’s installation instructions for

Warning statements identify conditions or practices that could result

arking.

WARNING indicates an injury hazard not immediately access ible as you

d the marking.

rea

CAUTION indicates a hazard to property including the product.

The following symbol(s) may appear on the product:

vi WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Service Safety Summary

Service Safet

y Summary

Only qualiﬁe 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.

UseCareWhenServicingWithPowerOn. Dangerousvoltagesorcurrentsmay exist in disconnect test leads before removing protective panels, soldering, or replacing components.

To avoid electric shock, do not touch exposed connections.

d personnel should perform service procedures. Read this Service

this product. Disconnect power, remove battery (if applicable), and

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual vii

Service Safety Summary

viii WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Preface

This manual supports servicing to the module level of the WVR6020, WVR7020, and WVR7120 Waveform Rasterizers, which rasterize video signals for XGA display. The post-production environments.

rasterizer ﬁnds use as a monitor for broadcasting, production, and

Manual Conventions

This manual level. The manual is divided into the following sections:

Introduct

product installation information.

Theory of

Maintenance tells you how to troubleshoot the product to the module level

and how t

Replaceable Parts illustrates the replaceable modules and mechanical parts and pro

The fo

The terms "rasterizer" and "instrument" are is used interchangeably to refer to the W

Where information is model-speciﬁc to either the WVR6020, WVR7020, or WVR

explains how to troubleshoot and service the rasterizer to the module

ion provides a general product description and tells where to ﬁnd

Operation provides descriptions of the rasterizer modules.

o handle the modules.

vides replacement part numbers.

llowing terms and conventions are used throughout this manual:

VR6020, WVR7020, and WVR7120 Waveform Rasterizers.

7120 model, it is indicated as such.(See page 1-1, Conﬁgurations.)

Related Manuals

is manual assumes you have access to the following manuals when servicing

Th this product. These manuals ship with the product and are also downloadable from the Tektronix Web site.

Table i: Related documentation

Item Purpose Location

WVR6020, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and WVR7120 Opt. MB Waveform Rasterizers Quick Start User Manual

WVR6020, WVR7020, and WVR7120 Online Help

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual ix

Installation and high-level operational overview

In depth operation and UI help

Preface

Table i: Related documentation (cont.)

Item Purpose Location

WVR6020, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and WVR7120 Opt. MB Waveform Rasterizer Speciﬁcations and Performance Veriﬁcation

WVR & WFM Series M aster Information Base

Procedure for checking performance and list of speciﬁcations

Programmers command reference for controlling the waveform rasterizer

x WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Introduction

The WVR6020, WVR7020, and WVR7120 Waveform Rasterizers rasterize serial digital video and composite video signals (depending on installed options) for an XGA display, providing a new standard of display quality and ﬂexibility.

Service Str

ategy

The Waveform Rasterizer will be repaired to the module level at selected Tektronix service centers. Repair includes functional veriﬁ cation of the product.

Speciﬁcations

The speciﬁcations for this product are found on the WVR6020, WVR7020, and WVR7120 D Tektronix Web site. (See p age ix, Related Manuals.)

Performance Veriﬁcation

The Performance Veriﬁcation procedure for this product is found in the WVR6020, WVR7020, and WVR7120 Documents 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 WVR6020, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and WVR7120 Opt. MB Waveform Rasterizers Quick Start User Manual that ships with the

pro

ocuments CD that ships with the product and is published on the

duct. (See page ix, Related Manuals.)

Conﬁgurations

e base WVR6020 instrument monitors SD inputs, and can be ordered with

WVR6020

WVR7020

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 1–1

Th options CPS to add monitoring of analog composite inputs, options AD or DDE for multiple-channel audio, and options EYE or PHY for physical-layer measurements.

The base WVR7020 instrument monitors SD inputs, and can be ordered with option HD to add monitoring of HD inputs, option CPS to add monitoring of analog composite inputs, or option AD for multiple-channel audio.

Introduction

WVR7120

WVRRFP

Hardware Installation

Product

Upgrade

ThebaseWVR712 option HD to add monitoring of HD inputs, CPS to add monitoring of analog composite inputs, options AD or DDE for multiple-channel audio, and options EYE or PHY for physical-layer measurements.

A Remote Front Panel, WVRRFP, is available as a companion product. When connected, both front panels are fully operational.

This product is to be rack mounted. For installation instructions, refer to the

WVR6020, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and WVR7120 Opt. MB Waveform Rasterizers Quick Start User Manual.

Hardware and software upgra des are avalable for all pr oducts, either as a ﬁeld upgrade kit or as a free software download from the Tektronix.com Web site. The

WVR602 WVR7120 Opt. MB Waveform Rasterizers Quick Start User Manual includes

instructions for updating product ﬁrmware.

0, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and

0 instrument monitors SD inputs, and can be ordered with

Operating Information

Power-On Procedure

Power-Down Procedure

For basic operating instructions, refer to the WVR6020, WVR7020, WVR7120, WVR6020 Opt. MB, WVR7020 Opt. MB, and WVR7120 Opt. MB Waveform Rasterizers Quick Start User Manual that shipped with this product, and for more

detailed reference information, refer to the instrument Online h elp (Push the

LP button to display online help on the rasterizer screen.)

This product has no power switch; to power it up, plug it in to a line voltage source.

1. Wait for the system to complete its power-on self-tests.

Unplug the instrument.

1–2 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Theory of Operation

The base WVR6020 instrument monitors SD inputs, and can be ordered with options CPS to add monitoring of analog composite inputs, options AD or DDE for multi measurements.

ple-channel audio, and options EYE o r PHY for physical-layer

The base WVR option HD to add monitoring of HD inputs, option CPS to add monitoring of analog composite inputs, or option AD for multiple-channel audio.

The base WVR7120 instrument monitors SD inputs, and can be ordered with option HD to add monitoring of HD inputs, CPS to add monitoring of analog composite inputs, options AD or DDE for multiple-channel audio, and options EYE or PHY for physical-layer measurements.

All models use an external XGA monitor for the display. This section covers the full capability, so some portions may not apply to a model with fewer features.

This theory of operation is mainly based on the High-level block diagram. (See Figure 2-1.). When necessary, other block diagrams may also be referenced. The upper portion of the block diagram covers functions on the main board. The

section covers those of the audio board. The primary functions on the

lower main board are:

1. Seri

2. Composite input

3. Reference Input

4. Digital Waveform Processing E ngine

al Digital Input

7020 instrument monitors SD inputs, and can be ordered with

5. Rasterizing Engine

6. Recursion and Picture processing Engine

ontrol Processor and it’s associated peripherals

7.C

8. Front Panel

9. LTC dec o der

The primary functions on the audio board are:

1. Processing

2. Inputs

3. Outputs

There are also miscellaneous circuits such as the fans and their thermal control system, and the "Fault" bus. These are covered in the High-level fault and fan block diagram.(See Figure 2-2.)

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 2–1

Theory of Operation

Serial Digital Input

Composite

Input

Power Distribu this section.

The serial digital signal inputs are passive loop-throughs, so they must be terminated to operate properly. Each input is applied t o a cable equalizer and then to a serial-to-parallel conversion circuit. The output of these sections are parallel data and a word clock.

The Composite inputs are also passive loop-throughs. If unterminated, the signal appears twice as large as it should. The two sets of inputs go through a 2-to-1 m After the clamp, the signal is ﬁltered and then applied to an A-to-D converter to generate a 12-bit parallel signal. There is also a sync separator to generate timing information and a picture decoder. The output of the picture decoder is very similar to the parallel data from the serial digital input. The separated sync passes on to the waveform processing (WFM) FPGAs, where it processed in

gital domain.

the di

tion is not shown in the block diagram but is covered at the end of

ultiplexer; then the selected signal is clamped if selected by the user.

Reference Input

eference input is a passive loopthrough similar to that of the Composite

The R inputs. The buffered signal is clamped and then digitized to generate a 10-bit stream. A simple sync separator generates timing information, which is sent to the waveform processing FPGAs. As on the composite inputs, the separated sync from the reference passes on to the WFM FPGAs, where it is processed in the digital domain.

Digital Waveform Processing Engine

The parallel data streams from all three video inputs are applied to the waveform

rocessing FPGA. This block up-samples, interpolates, demodulates and

p otherwise processes the data to generate the signals needs to create the displays.

2–2 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Theory of Operation

Figure 2-1: WVR7020, WVR7120, and WVR6020 Waveform Rasterizers block diagram

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 2–3

Theory of Operation

Rasterizing Engine

The Rasterizer engine resides in the waveform processing FPGAs. 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 display mor memory chip and read out of the other. The functions swap on the next frame.

e brightly. For any given frame, the intensity map is built up in one

Recursion and Picture Processing Engine

The output of the rasterizer feeds the picture and recursive processing engine in the display (DSY) 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 the input rate of 50 or 59.94 Hz to 60 Hz frame rate to work with the XGA monitor. The picture and waveform data combine with the

cs and audio bar information from the control processor, and then output to

graphi the XGA DAC to drive the external monitor. Note that the parallel data from the serial digital input and the parallel stream from the composite decoder connect directly to this FPGA to provide the picture functionality, bypassing the waveform processing engine.

rol Processor

Cont

The control processor is in charge of all the operational m odes in the instrument. It draws the audio bars, communicates with the front panel through RS232 signaling,

controls most other internal d evices though either the parallel or the I2C bus.

and A few parts communicate through other bus types like JTAG or SPI. Audio data is input to the control processor via the 8 bit HPI bus.

The control processor interfaces to the Ethernet through a dual rate switch. This allows the network connection to run at 10 or 100 MB/s.

2–4 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Front Panel

LTC

Theory of Operation

The front panel contains a small processor that communicates to the control processor through RS232 signaling. Power, ground, fault and a programming signals allow the front panel processor ﬂash code to be updated.

LTC signals are routed to the decoder chip. The control processor reads the time values from the decoder chip. If selected by the user, the decoded time values can be display

LTC inputs come from the remote connector. The LTC signal is also applied to an A/D con LTC waveform display.

NOTE. The FPGA’s decode VITC signals digitally.

ed on the XGA monitor and used to time stamp alarm log entries.

verter and then input to the waveform processing FPGA to create the

Audio O

ption Board

The audio option (if installed) resides on the upper "mezzanine" board.

Therearetwoaudiooptions:

Option AD adds support for Analog audio and Digital audio monitoring

Option DDE adds support for Dolby E decode, Dolby Digital (AC-3) decode, and Analog/Digital audio monitoring

Table 2-1: Supported audio options

To add this option to a previously purchased instrument WVR6020 WVR7020 WVR7120

AD WVR6UP-AD WVR70UP-AD WVR7UP-AD

DDE WVR6UP-DDE not supported WVR7UP-DDE

Order this kit

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 2–5

Theory of Operation

Audio Processing

Audio Inputs

The audio options use an FPGA to route the audio input into two DSP chips whose main function is to calculate the peak values for the selected meter ballistics (response characteristics).

The audio data has two paths to the display. On one path, peak values are sent to the control processor which then plots the bar displays. On the second path, raw data samples are sent to the waveform processing engine which interpolates and plots them

to generate the lissajous display.

Audio Outputs

There are are accepted at rates up to 192 kHz. All input data rates are resampled at 192 kHz before processing by the DSPs.

Analog inputs are digitized at 48 kHz and then go through the same path as the AES inputs.

The embedded audio path starts at the DSY FPGA. First the a udio samples are extracted from the serial digital video data using a 12.288 MHz oscillator and sent to the audio board. At the audio board, the streams are multiplexed into the AES decoders and then follow the same path as the AES data. The user can choose to have the de-embedded audio output on the AES B port.

There are two audio outputs, analog and AES. Both outputs always follow the sou 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 rear panel Dsub connector.

The AES outputs are available with any input. They can serve as an active loop-through if the input is AES, a de-embedder if the input is embedded, or an A/D converter if the input is analog.

three basic audio input paths: AES, analog, and embedded. AES inputs

rce that is currently selected for the audio bar display. The analog outputs can

Option EYE/PHY

Options EYE and PHY provide the following features:

Eye pattern display

Jitter waveform display

Jitter readout

2–6 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Jitter Meter

Cable Loss readout

Approx Cable readout

Source Level readout

Theory of Operation

Eye Amplitude readout

Eye Risetime readout

Eye Fallti

me readout

Eye Rise-Fall (difference) readout

Requires Option PHY.

Options EYE and PHY support both HD and SD SDI signals, limited by the capability of the instrument they are installed in:

WVR6020: Not applicable; EYE and PHY options are not supported.

WVR7020: Not applicable; EYE and PHY options are not supported.

WVR7120: HD only.

WVR71

20 Option SD: Both HD and SD.

The hardware to support these features is contained on the Eye board, which is

alled on standoffs over the left front quadrant of the Main board.

inst

The Eye board receives an input signal through two coaxial cables. These coaxial

es bring the input signal from the Loopthrough board. Output data and control

cabl I/O pass through a 60-pin connector (J6) to the Main board. Most of the power required is provided by a two-conductor cable directly from the main power supply (+5 V) to J3 on the Eye board. A small amount of additional power is supplied through J6, from the Main board.

eration. The selected SDI input signal is sampled by a wideband track-and-hold

circuit, and then digitized. The same signal is also applied to a cable equalizer and 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. The Eye Display data is further processed to derive the Eye Amplitude, Eye Rise Time, and Eye Fall Time measurements, which are shown in the SDI Status Display.

The selected SDI input signal also drives the Cable Meter circuit, which measures signal energy at two frequencies. These me asurements are read by the CPU on the Main board, which calculates Cable Loss, Approximate Cable Length, and Source Level for display in the SDI Status screen.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 2–7

Theory of Operation

Fault LED and Fan Block Diagram

The Fan control and the bus that drives the front-panel "Fault" LED, the High-level fault and fan block diagram.(See Figure 2-2 on page 2-9.)

The fan circuit senses the temperature to set the fan speed. Each fa n has a tachometer output to indicate fan speed so the circuit can run the fans at low speed without stalling. The slower of the two fans controls a power supply that provides the voltage for both fans. If a fan is not turning, the circuit senses the stall and a can be entered in the diagnostic log.

sserts the fault line and a line to the control processor so the event

The front instrument. The concept is to provide fault information independent of the control processor, since it may not always be working. If any circuit detects a fault, it pulls the fault line low. This line is what is called a "wire-OR." Circuits are also expected to assert a local LED when asserting the fault line. Because of this local LED, a technician should be able to look inside the box and see a red LED near the site of

For details about the circuits that can assert the fault light and t heir associated local

panel "Fault" LED is driven by a line accessible by most of the

the fault. Faults are usually also sent independently to the control processor.

LEDs. (See page 4-5, Troubleshooting.)

2–8 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Theory of Operation

Figure 2-2: High-level fault and fan block diagram

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 2–9

Theory of Operation

Power Supply a

nd Distribution

The power supply has a universal AC input that enables it to accommodate 100 VAC to 264 VAC without any user range switching. The output is 5 V DC. Circuits con point of usage.

Fuses on the in the troubleshooting section for locations of these fuses.

The second section. The location of the supply test points is shown in Maintenance section.

vert this output to any other supply voltage that they require at the

Primary supply 5 V output protect the main board. See the diagrams

ary supplies and their tolerances are speciﬁed in the troubleshooting

2–10 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Adjustment Procedures

Adjustments

The waveform rasterizer does not normally require any adjustments. The adjustments which can be made should only be made while performing a Performance Veriﬁcation. Refer to the following procedures in the WVR6020,

WVR7020, WVR7120, Speciﬁcations and Performance Veriﬁcation Technical Reference m

instrument) for the adjustments:

anual (on the Product Documentation CD that shipped with this

Composite

Composite Analog Frequency Response (Option CPS only),

Composite Analog Input DC Offset Restore Off (Option CPS only)

Analog Audio Level Meter Accuracy Over Frequency (Options AD and DDE

only)

HD Cable Meter (WVR7120 Option EYE or PHY only)

HD Jitter Noise Floor (WVR7120 Option EYE or PHY only)

Eye Gain (WVR7120 Option EYE or PHY only)

SD Cab

Analog Vertical Measurement Accuracy (Option CPS only),

le Meter (WVR7120 Options EYE and PHY)

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 3–1

Adjustments

3–2 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Maintenance

General Maintenance

This section contains the information needed to perform periodic and corrective maintenance on the waveform rasterizer. The following subsections are included:

Preventing ESD — General information on preventing damage by electrostatic discharge.

Inspection and Cleaning — Information and procedures for inspecting and cleaning the waveform rasterizer.

Troubleshooting — Information for isolating and troubleshooting failed modules. Included are instructions for operating the waveform rasterizer diagnost the internal diagnostic routines to speed fault isolation to a module.

ic routines and troubleshooting trees. Most of the trees make use of

Preventing ESD

Repacka

for service.

Before servicing 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

waveform rasterizer.

When performing any service that requires internal access to the waveform rasterizer, adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge (ESD).

1. Minimize handling of static-sensitive circuit boards and components.

2. Transport and store static-sensitive modules in their static protected containers

or on a metal rail. Label any package that contains static-sensitive boards.

3. 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.

ging Instructions — Information on returning a waveform rasterizer

4. Nothing capable of generating or holding a static charge should be allowed on the work station surface.

5. Handle circuit boards by the edges when possible.

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.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–1

General Maintenance

Inspection an

General Care

Module Handling

d Cleaning

Inspection and Cleaning describes how to inspect for dirt and damage. It also describes how to clean the exterior and interior of the waveform rasterizer. Inspection a maintenance, when done regularly, may prevent waveform rasterizer malfunction and enhance its reliability.

Preventive maintenance consists of visually inspecting and cleaning the waveform rasterizer and using general care when operating it.

How often maintenance should be performed depends on the severity of the environment in which the waveform rasterizer is used. A proper time to perform preventive maintenance is just before any waveform rasterizer adjustment.

The cabinet helps keep dust out of the waveform rasterizer and should normally be in place when operating the waveform rasterizer.

When h boards, support the board on two sides to avoid ﬂexing of the board material. Flexing can cause breaks in the solder joints of SMDs.

nd cleaning are done as preventive maintenance. Preventive

andling modules comprising circuit boards, especially larger circuit

erior Cleaning

Int

Exterior Cleaning

WARNING. Before performing any procedure that follows, power down the

instrument and disconnect it from line voltage.

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

d 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 us e abrasive compounds on any part of the chassis that may damage the chassis.

CAUTION. Avoid the use of chemical cleaning agents that might damage the

plastics used in the waveform rasterizer. Use only deionized water when cleaning the front-panel buttons. Use a 75% isopropyl alcohol solution as a cleaner and rinse with deionized water. Before using any other type of cleaner, consult your Tektronix Service Center or representative.

4–2 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Inspection — Ex

terior. Inspect the outside of the waveform rasterizer for damage,

wear, and missing parts, using the following table as a guide. Immediately repair defects that could cause personal injury or lead to further damage to the waveform rasterizer.

Table 4-1: External inspection check list

Item Inspect for Repair action

Cabinet, front panel, and cover

Front-panel knobs Missing, damaged, or loose

Connectors

Rackmount slides

Accessories

Cracks, scratches, deformations, damaged hardware

knobs

Broken shells, cracked insulation, and deformed contacts. Dirt in connectors

Correct operation Repair or replace defective

Missing items or parts of items, bent pins, broken or frayed cables, and damaged connectors

Repair or replace defective module

Repair or replace missing or defective knobs

Repair or replace defective modules. Clear or wash out dirt

module

Repair or replace damaged or missing items, frayed cables, and defective modules

Inspection — Interior. To access the inside of the waveform rasterizer fo

inspection and cleaning, you will need to remove the top cover.

Inspect the internal portions of the waveform rasterizer 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 t

o adjust the waveform rasterizer.

CAUTION. To prevent damage from electrical arcing, ensure that circuit boards

and components are dry before applying power to the waveform rasterizer.

Table 4-2: Internal inspection check list

Item Inspect for Repair action

Circuit boards

Resistors Burned, cracked, broken,

Solder connections Cold solder or rosin joints.

Loose, broken, or corroded solder connections. Burned circuit boards. Burned, broken, or cracked circuit-run plating.

blistered condition.

Remove and replace damaged circuit board.

Resolder joint and clean with isopropyl alcohol.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–3

General Maintenance

Table 4-2: Internal inspection check list (cont.)

Item Inspect for Repair action

Capacitors

Wiring and cables Loose plugs or connectors.

Chassis Dents, deformations, and

Damaged or leaking cases. Corroded solder on leads or terminals.

Burned, broken, or frayed wiring.

damaged hardware.

Remove and replace damaged circuit board.

Firmly seat connectors. Repair or replace modules with defective wires or cables.

Straighten, repair, or replace defective hardware.

Cleaning Procedure — Interior. To clean the waveform rasterizer interior, perform the foll

owing steps:

1. Blow off dust with dry, low-pressure, deionized air (approximately 9 psi).

2. Remove any remaining dust with a lint-free cloth dampened in isopropyl

alcohol (75% solution) and rinse with warm deionized water. (A cotton-tipped

cator is useful for cleaning in narrow spaces and on circuit boards.)

appli

NOTE. If, after doing the above steps, a module is clean upon inspection, skip the

remaining steps.

3. If steps 1 and 2 do not remove all the dust or dirt, the waveform rasterizer 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 all parts with low-pressure, deionized air.

Lubrication. There is no periodic lubrication required for the waveform rasteriz er.

4–4 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Troubleshooting

General Maintenance

The procedures in this section will help you trace the root cause of a problem back to one of the replaceable parts. In general, this is a board-level replacement but there are a few components on some boards that are replaceable.

WAR NI NG . Before performing this or any other procedure in this manual, read the

General Saf this manual.

To prevent possible injury to service personnel or damage to electrical components, please read Preventing ESD.(See page 4-1, Preventing ESD.)

ety Summary and Service Safety Summary found at the beginning of

Getting Started

This procedure consists of two main sections; the ﬁrst section contains the

Symptoms and Causes

To properly test a waveform rasterizer 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

loscope to check outputs.

oscil

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–5

General Maintenance

Table 4-3: Requ

Test equipmen

XGA Monitor Computer moni

SDI serial digital video test generator with embedded audio and composite signal source

ired test equipment

Requirements Example

x60Hzscanrate

NTSC Black Tektronix TG2000 with BG1 and additional

1080i 59.94 HD signals required for WVR7020 and

100% color b

10-bit sha

SDI Matrix

Signal

100% sweep

HD signal with adjustable SDI amplitude required for WVR7120

1080i 59.94 analog tri-level sync required for W VR7120

525/270 SD signals required for WVR702 for W VR6020:

0 and WVR7120 Option SD, and

tor capable of 1024 x 768

WVR7120:

ars

llow ra mp

Split Field P athological

modules indicated below.

HDVG1 module for TG2000 (Embedded audio neede DDE)

HDST1 module for TG2000

AWVG1 module for TG2000

DVG1 with option S1 module for TG2000 (Embed options AD or DDE)

d for audio options AD or

ded audio needed for audio

100% color bars

10-bit shallow ramp

SDI Matrix Pathological Signal

100% sweep

Adjustable SDI amplitude

Composite signals required for Option CPS: NTSC SMPTE bars

Precision calibration signals for Option CPS

S Audio Signal Generator

Analog Audio Signal Generator Rohde & Schwarz UPL06, Tektronix

Voltmeter Fluke 87 or equivalent

Oscilloscope

48 kHz, 24 bit word length signals

ideo trigger capability

AVG1 module for TG2000

Tektronix part number 067-0465-00 module for TG2000

hde & Schwarz UPL06, Tektronix

Ro AM700 and AM70.

AM700 and AM70.

Tektronix TDS3000B Series

4–6 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Table 4-4: Symp

Symptom Possible sources or recommended detailed troubleshooting procedure to follow

No LEDs lit and XGA output not working Perform general checks

Fault Light on after 15 s ec boot up Check error status page for more information

Inconsist

Fails any of these Power On Self Tests (POST):

Timecode Decoder

Cmpst Decoder

Composi

DSP FPGA

Display FPGA

Diagnostic log shows Fail on any of these

ADV_DIAG_LSS

ent or partial hardware failures

te DAC

Advanced Diagnostics:

toms and causes

Perform primary power supply checks

Perform seco

Replace main circuit board

Check diagnostic log for more information

Perform fau

Perform pr

Perform secondary power supply checks

Replace main circuit board

Review messages in diagnostic log

Perform primary power supply checks

Perform s

Replace the main board

Review messages in diagnostic log. If the waveform rasterizer also fails other tests as

then suspect main board and perform the primary and secondary power supply tests.

well,

If only this test fails, then perform Isolating Advanced Diagnostic Lissajous Errors procedure to isolate the problem to main or audio board.

ndary power supply checks

lt LED problem isolation

imary power supply checks

econdary power supply checks

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–7

General Maintenance

Table 4-4: Symptoms and causes (cont.)

Symptom Possible sources or recommended detailed troubleshooting procedure to follow

Failures while running the advanced diagnostics:

PLD Data Bus

PLD A ddress Bus

Power Supply

Raster Data Bus Output

Raster Data Bus Input

Display Data Bus

Display Address Bus

DSP1 Data Bus

DSP1 Address Bus

Perform secondary power supply checks

Replace the main board

DSP2 Data Bus

DSP2 Address Bus

DSP1 QDR1

DSP1 QDR2

DSP2 QDR1

DSP2 QDR2

Display SDRAM Data Bus

Display SDRAM Address Bus

DSP1 SDRAM Data Bus

DSP1 SDRAM Address Bus

DSP2 SDRAM Data Bus

DSP2 SDRAM Address Bus

4–8 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Table 4-4: Symptoms and causes (cont.)

Symptom Possible sources or recommended detailed troubleshooting procedure to follow

Failures while running the advanced diagnostics (Cont.):

Display → DSP1 Bus Output

Display → DSP1 Bus Input

DSP1 → Display Bus Output

DSP1 → Display Bus Input

Display → DSP2 Bus Output

Display → DSP2 Bus Input

DSP2 → Display Bus Output

DSP2 → Display Bus Input

DSP1 → DSP2 Bus Output

DSP1 → DSP2 Bus Input

Perform secondary power supply checks

Replace the main board

DSP2 → DSP1 Bus Output

DSP2 → DSP1 Bus Input

Failures while running the advanced diagnostics (Cont.):

Eye Power A2D

Eye Cable A2D

Eye O ption

Failures while running the Audio PLL Frequency Check:

Lissajous Bus

DSP1 Data Bus

Display Composite Controls

DSP1 Composite Tests

DSP2 Composite Tests

Note: Only tests pertinent to installed options are reported.

Log Message:

Fail AUDIO_DSP_HEARTBEAT

Replace the eye board

Replace the main board

If the audio function works OK, but this message still appears occasionally, then upgrade the software to the current version, clear the log, and bench test to see if the problem persists. If it does, then search for an intermittent problem in the audio board, cables, or main board.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–9

General Maintenance

Table 4-4: Symptoms and causes (cont.)

Symptom Possible sources or recommended detailed troubleshooting procedure to follow

Functional Test Failures

PVD Test Failures

In case of failure on either Functional or the Performance tests, the board at fault is generally obvious. Before replacing a board:

1. Perform the primary and secondary power supply checks.

2. Run the advanced diagnostics and check the diagnostic log for help in isolating

the fault.

If this does not isolate the problem, then replace the main board if the test is in one of the following areas:

SDI

Composite

Ref

LTC

XGA output

Color Palette

Unknown Problems

Often an instrument will come into service with vague or intermittent symptoms. In cases like these, the following set of tests may help ﬁnd the problem or the marginal condition.

Remote I/O

Ethernet

If the problem is in the audio board, perform these tests:

3. Isolating Advanced Diagnostic Lissajous errors.

4. Audio POST Failure.

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 b y performing the Primary and Secondary Supply checks. A marginal supply can lead to intermittent operation if it is near the acceptable threshold. This includes the main supply and the secondary supplies on each board

3. Check the error log. This may give clues about how the unit was operating when the user saw problems.

4. Run the functional test. 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.

5. If the unit has an audio board, remove it and re-check any problem areas in the video performance. The audio board can place too much of a load on the supplies if they are marginal. If the performance changes with the audio board removed, then you should perform the primary and secondary power supply checks and look for an excess load on one of the supplies.

4–10 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Detailed Troubleshooting Procedures

The following tests should be run as indicated in the Symptom and Causes table above. 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 recommenda

List of detailed troubleshooting procedures:

General Checks

Fault LED Problem Isolation

Primary Power Supply Checks

Secondary Power Supplies Checks

tion identifying a root cause might be suspect.

General Maintenance

General Checks

Fault LED Problem

Isolation

Front Pa

Isolating Audio Problems

Isolating Advanced Diagnostic Lissajous Errors.

Check that the power cord is installed.

1. Check that the XGA monitor cable is connected on both ends and that the screws are holding it securely.

2. Check that all internal cables are correctly connected and seated.

3. Che

The waveform rasterizer has a red FAULT LED on the front panel. This indicator lights up when speciﬁc types of problems occur in the instrument. The FAULT

D is different from the error icon on the XGA display, which indicates a

LE problem with the signals. It is normal for the FAULT LED to be lit for 10 to 15 seconds during boot up.

The fault system is simple and does not require the processor be running to indicate faults. However, the fault s ystem does not cover everything and does not give full details about the nature of the fault. Note that some problems that are covered by the FAULT LED are also reported to the diagnostic log.

nel Troubleshooting

ck for any discolored or burned components.

If the instrument runs sufﬁciently to access the CONFIG menu, then check the diagnostic log for messages about the cause of the fault. Skip directly to that portion of this section if such information is available.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–11

General Maintenance

All subsystems

that assert the FAULT LED also assert a local, red LED to indicate the area that generated the fault. Thus, whenever the instrument fault line is asserted, you need only remove the top cover and look for the red LEDs inside to ﬁnd the location of the fault. The following table lists the circuits that can assert faults and identiﬁes the LEDs associated with the circuit. (See Figure 4-2 on page 4-24.) There are also duplicates of the instrument FAULT LED and the audio fault LED on

the main board (DS940 and DS840.) (See Figure 4-1 on page 4-23.)

Table 4-5: Circuits that can assert faults

Circuit area Local LED

Fans

Audio

Front Panel

CPU DS680

DS170, DS270

DS590 on main

DS252 (between preset 1, 2) on Front Panel board

Fan Failures. One possible source of an asserted FAULT LED is a fan failure.

If the right-side fan fails, then LED DS170 will be lit.

If the left-side fan fails, the LED DS270 will be lit.

The f an failure is sensed through tachometer feedback, thus a fault will be asserted if the fan is not connected, stalled, or if the tachometer feedback line is not working correctly.

If one fan fails, the control circuit will increase the voltage and the other fan will be driven at full speed.

If neither fan is spinning, then check fuse F70 and the dedicated switching supply that drives them.

If both fans are spinning, but one is showing a fault, swap the fans. If the problem moves with the fan, then replace the defective fan. If the fault does not track the swap, then there is a problem on the main board.

The normal voltage to drive the fans (pin 1) varies from about 6 V to 13.5 V in response to temperature and fan speed.

DSP. The following conditions can assert the FAULT LED from the DSP circuitry:

Over temperature 2.5 V supply

Over temperature 3.3 V suppl

If any of these are in fault condition, the front-panel FAULT light will be lit and the local, red LED DS550 will be lit. Over temperature faults are reported in the diagnostic log - so you can look there to see if the DSP is asserting the line and which supply is the root cause.

4–12 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

If the system is V supplies. If these are good, then check the temperature of the regulators U50 and U60. If they are hot to touch, then they are overloaded or defective; replace the main board.

Additionally, there are LEDs, DS260, DS261, and DS262, on the "Power Good" lines from each of the DSP secondary supplies. If the supply has fallen out of regulation, then the Power Good LED will not be lit.

Audio. The for the FPGA. The LED for DSP0, DS0310, blinks at 1 Hz and the LED for DSP1, DS420, blinks at 0.5 Hz. The LED for the FPGA, DS0820, is dim if the FPGA is not programmed and bright if it is programmed. If any of the LEDs are continuously off, replace the audio board.

The POST does the following:

Reads all of the AES decoder internal registers and veriﬁes that what is read is correct

Tests the D/A control interface

Performs an active-bit test on the A/D output clocks

Check calibrated

not running, then check the voltage on the 2.5 V and 3.3

board has one watch-dog LED for each processor and one LED

s the serial EEPROM to see which of the analog inputs have been

s the Audio DSP/FPGA interface

Test

The AES encoder internal registers are read and veriﬁed

The DSP interface between the Dolby E and Dolby Digital decoders is tested

The main CPU asserts the fault line if the DSP heartbeat fails. This condition will be shown in the diagnostic log.

ront Panel. The front panel local fault LED is DS252 (behind the PRESETS

buttons near the top of board ). The LED that shows through the panel is DS890.

If the Front panel asserts the Fault line, then replace the front panel board.

The front-panel processor asserts the fault indicator for about 1 second during reset. If it does not ﬁnish initializing and running internal diagnostics, then the fault LED remains lit. If the front-panel processor detects a fault in the diagnostics, then it leaves the fault asserted after it ﬁnishes.

The internal tests are:

RAM Test - Entire RAM is tested. If this test fails, the ROM Test is skipped.

ROM Test - The front-panel processor calculates the checksum of the

program stored in ﬂash and compares it with the stored checksum.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–13

General Maintenance

Primary Power Supply

Tests

CPU. The CPU fau

is a duplicate of the FAULT LED, and DS590, which is a duplicate of the audio fault light.

The CPU can detect that the fault line is asserted. I f the user has conﬁgured the alarm section to monitor hardware faults, then alarms will be generated and / or logged as set by the user. Since the CPU has access to many of the individual error ﬂags, some of these are displayed on the diagnostic log.

The CPU can also assert the fault line for some failures during initialization and power on self test (POST).

If the CPU is asserting the fault line, then replace the main board.

This section describes methods for verifying the proper operation of the waveform rasterizer primary power supply.

WARNING. Some parts of this test require removing the insulating safety shield.

To avoid personal injury, be careful not to contact the circuitry while the shield is removed. Be sure to replace the shield as soon as possible to prevent injury.

The main power supply accepts 100 to 264 VAC and outputs 5 VDC. The output voltage at the supply must be between 4.9 and 5.3 V for correct operation. On the

board, the common 5 V supply must be between 4.80 and 5.25 V.

main

lt LED is DS680. The CPU section also has DS591, which

Secondary Power Supply

Tests

If the voltage at the output of the supply is not correct, check the input voltage. If

nput voltage is in the correct range, then replace the power supply.

the i

If the supply output voltage is zero, then check the input circuit. The voltage

uld be the same at the line cord, at the input to the power supply, and on both

sho ends of the fuse on the input to the supply. If the input voltage is correct while the output is not, replace the supply. If the input voltage is not correct replace the element in the chain that is not passing the AC input.

If the power supply output is correct, also check the fuses F40, F50, F51 and F160 in the 5 V system near the main board power connector J581. All should have 5 V on both sides. If not, replace the fuse. (See Figure 4-1.)

There are multiple secondary supplies that are derived from the main 5 V supply. Be sure all fuses are good (as noted in Primary Power Supply Tests)before checking the secondary supplies.

First, check the digital secondary supplies as shown in the following table. Each supply has an LED and a test point. If any supplies are out of range, replace the mainboard. (SeeFigure4-1.)

4–14 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Table 4-6: D igi

Nominal (+V) Allowed range (+V) Measure at

1.5 1.4 to 1.6 TP430

1.8 1.7 to 1.9 T P20

2.5 2.4 to 2.6 TP432

2.6 2.6 to 2.8 T P19

3.3 3.3 to 3.55 TP530

5.0 4.75 to 5.25 TP531

tal secondary supplies

After you have checked the Digital Secondary Supplies, check the Analog supplies as shown in the following table. These have LEDs and test points . If any voltages are out of tolerance, replace the main board. (See Figure 4-1.)

Table 4-7

Nominal ( V) Allowed range (V) Measure at

–5

+5 "good" +4.75 to 5.25 TP383

: Analog supplies

–5.2 to –

4.8

TP171

Check the Audio supplies on the Audio board as shown in the following table, (if an A

udio board is installed). The test points are available, with the board installed, at the location speciﬁed. Check fuse F870 if there are no audio supply voltages. (See Figure 4-3 on page 4-25.)

Table 4-8: Audio secondary supplies

Supply name Range

+1.26 V 1.20 to 1.32

+1.5 V 1.425 to 1.575

+1.8 V 1.71 to 1.89

+3.3 V 3.1 to 3.6

+5 VA 4.8 to 5.2

+5 V 4.8 to 5.2

–5 V –4.5 to –5.5

+15 V 14 to 15.5

–15 V –14 to –15.5

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–15

General Maintenance

Front Panel

Troubleshooting

If the instrume not work, follow this procedure:

1. Do the LEDs tur V fuse, F130, on the main board and check the cable from the main board to the front panel. If there is power to the front panel and the LEDs do not turn on at power up, then replace the front panel board.

2. After power up, do most of the LEDs turn on and stay on? If not, proceed to next step. Otherwise probe J390, pin 6 and pin 7 on the main board. Pin 6 should be TTL high (about 3.3 V) and pin 7 should be low (RS232 level, about –7 V). If not, suspect the main board. Otherwise probe pin 6 and 7 o f J670 on th the front panel, otherwise replace the cable.

3. When you the main board ﬂash? These LEDs monitor the transmit and receive lines on the main board side of the RS232 transceiver. If they ﬂash,thengotostep5.

4. If DS291 is not ﬂashing, then check pin 3 of J390 on the main board. When you press a key, you should see pulses about a 15 V high and 100 to 300 µs long. If not, suspect the front panel board.

5. If pin 3 of J390 is toggling and DS291 is not, then the RS232 receiver on the main board is not working. Replace the main board.

nt has a reasonable display on the screen, but the front panel does

n on for 2 to 3 seconds at power up? If not, check the 5

e front panel board. If they are high and low, respectively, suspect

press buttons on the front panel, do LEDs DS291 and DS292 on

6. If both DS291 and DS292 are ﬂashing, then check pin 5 on main board connector J390. When a front panel button is pressed, the front panel sends a message to the main board via pin 3. The CPU on the main board responds via pin 5 and this instructs the front panel to change which LEDs on the

ont panel are illuminated. Pin 5 should have a burst of pulses with about

fr 15 V signal swing and a basic pulse width of about 100 µs. If there is no response from the CPU on pin 5 of main board connector J390, then the RS232 transmitter is bad; replace the main board.

7. If both the DS291 and DS292 LEDs are ﬂashing and the signals at the main board connector are also good but the operation of the front panel is not correct, check the cable between the two boards. This can be done by probing pin 5 on J670 of the front panel board. As in step 5, it should have a burst of pulses about 15 V high and 100 µs long after a button press. If the signal is bad, suspect the cable. If the signal is good, replace the front panel board.

8. If some buttons work, but others do not, then the front panel or the elastomeric key pads are bad. Disassemble the front panel assembly and use a small piece of wire or foil to emulate the carbon pad on the switch mat. If this registers as a switch closure then replace the elastomeric key pad. Otherwise replace the front panel board.

9. If some front panel button LEDs work and others do not, then the problem must be in the front panel board. These LEDs have the anodes connected to +5 V and the cathodes connected to a resistor driven by a logic gate. Probe

4–16 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

AudioPOSTFailure

the voltage on t front panel board.

10. The FAULT LED s also be lit if either fan is stopped. If it is not lit at power up or when a fan is stopped, then check the voltage on the LED. The cathode connects to a 332 ohm resistor tied to ground and the anode connects to the output of a logic gate. If the voltage looks correct, then replace the LED, otherwise replace the front panel board.

11. If the buttons and LEDs work but knobs do not work, then replace the front panel.

12. If the buttons and LEDs work but the beeper does not sound, then replace the front panel board.

13. Check fuse F970 if the remote front panel is not functioning.

It is sometimes difﬁcult to isolate the root cause of audio problems. Most audio problems are due to faults on the audio board, but the audio board communicates with the main board, so in some cases the problem may be there as well. This test isolates an audio POST failure to either the audio board, main board, or the

between.

cable

he LED. If the LED is bad replace it, otherwise replace the

hould be lit at power up for about 10 seconds. It should

Not all errors are repor ted by the power up diagnostics; therefore, if you are

cting a loss in audio functionality, check the diagnostic log for any reported

dete audio errors. If any errors are found, perform the following procedure to narrow the problem to either the audio board or the main board.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–17

General Maintenance

1. Prepare a test o

a. Horizontal Scale 5.00 μs/div

b. Vertical Scale 2 .00 V/div

2. If the diagnostic log contains an entry that reads Fail Audio DSP Self Test fpga,do the following substeps:

a. Check the FPGA programmed indicator (DS0820 on the audio board). If

this LED is off, skip to next step; otherwise probe pin 34 of connector J750 of the main board during the boot sequence. If the signal on the pin toggles, r audio board. If the signal toggles on pin 34, replace the cable; otherwise, replace the audio board.

b. Probe pin 33 of J750 on the main board during the boot sequence. If the

signal does not exhibit a low-to-high transition, replace the main board. If the signal does transition, check pin 33 of J200 on the audio board. If the signal does not toggle on pin 33, replace the cable.

c. Probe pins 31 and 32 of connector J750 during the boot sequence. If the

signal on either of these pins does not toggle, replace the m ain board. If both signals do toggle, probe pins 31 and 32 on the audio board. If the signa

scilloscope with the following settings:

eplace the m ain board; otherwise, probe pin 34 of J200 on the

l does not toggle on either pin, suspect the cable.

d. Probe pin 30 of J200 on the audio board during the boot sequence. If the

al does not exhibit a low-to-high transition, replace the audio board.

sign If the signal does transition, check pin 30 of connector J750 on the main board. If the signal on pin 30 does not toggle, s uspect the cable; if the signal on pin 30 does toggle, suspect the audio board.

e. If all signals in a through d are correct replace the audio board.

4–18 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

3. If the Diagnost perform the following procedure:

a. Check to see if the audio board is recognized by the main board by

pressing CONFIG and selecting Utilities > View HW/SW Version.

b. If there is an audio option listed, suspect the audio board; otherwise,

proceed to next step.

c. Probe pins 3 through 14 on the main board connector J750, 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 audio board, replace the cable.

d. Probe pins 15 and 18 on connector J750 during boot-up and verify that the

signals toggle. If they are not toggling, suspect the main board. If they are toggling, check them again on the audio board J200. If either of the signals on pins 15 and 18 do not toggle on the audio board, replace the cable.

e. Probe pin 25 on the audio board connector J200 during the boot sequence.

If the signal does not toggle, replace the audio board; otherwise, check it again on the main board at connector J750. If the signal on pin 25 does not toggle on the main board, then replace the cable; otherwise, replace the main board.

ic Log screen reports the failure Audio DSP Self Test—dsp0,

f. If all of these steps pass, replace the audio board.

4. If the Diagnostics Log reports the failure Audio DSP Self Test—dsp1,

perform the following procedure:

Check to see if surround display is functioning correctly by doing the following.

a. Push the factory button, and then push and hold the display select #4

button.

b. In the audio pop-up menu, select Aux Display>Surround Display.

c. Also in the pop-up menu, select Audio Input> AES A.

d. Hook up an AES test tone generator to the AES A1-2 input.

5. If there is nothing displayed on the surround display, proceed to next step;

otherwise, replace the audio board.

6. Probe pins 3 through 14 on the main board connector J750, and verify that the signals on all the pins are toggling. If any of the signals on pins 3 through 14 do not toggle, replace the main board. If they all do toggle, 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.

7. Probe pins 15 and 20 on connector J750 during the boot sequence, and verify that the signals on the pins toggle. If they do not toggle, suspect the main

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–19

General Maintenance

Isolating Advanced

Diagnostic Lissajous

Errors

board. If the si If any of the signals on the pins do not toggle on the audio board, replace the cable.

8. 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 J750. If the signal on pin 27 does not toggle on the main board, then replace the cable; otherwise, replace the main board.

9. If all of these steps pass, replace the audio board.

The advanced diagnostics test the lissajous data path between the audio and main boards. A failure in this data path can be due to problem on either board. Perform the following tests to isolate the problem to one board or the other.

If the advanced diagnostics detect an error in the Lissajous circuitry, then they will display a failure in the following categories:

Lissajous Frequency : should be 61.44 MHz ±0.1 Mhz

Lissajous Bus V2 : pass/fail

gnals do toggle, check them again on the audio board J200.

4–20 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

1. If there are any

failures, prepare a test oscilloscope with the following settings:

a. Vertical Scale 2.00 V/div

b. Horizontal Scale 200 ns/div

2. If there is Lissajous Frequency failure, perform the following substeps:

a. Put the oscilloscope probe on pin 62 of connector J200 on the audio

board. Verify the signal is ~3 V

and is a continuous 50% duty-cycle

p-p

squarewave.

b. If the signal at J940 is not as just described in the previous step, the audio

board most likely has a failure; otherwise, proceed to next step.

c. With the oscilloscope probe, verify the signal at J750 pin 62 of the main

board is as described in step a. If it not as described, suspect the cable; if it is as described, replace the main board.

3. IfthereisaLissajousBusV2failure,perform the following substeps:

a. Put the scope probe on connector J200 pin 61 of the audio board and

verify the signal is ~3 V

and toggles low at regular intervals.

p-p

b. If the signal on pin 61 looks OK, put the scope probe on pin 63. Pin 63 is

the data line and the signal will have a somewhat random lookdepending on the audio source. Just verify that the signal is toggling and is ~3 V

p-p

Option EYE/PHY

roubleshooting

c. If either signal looks bad at J200 the audio board most likely has a failure,

otherwise continue to next step. With the scope probe, check the signal at

61 of J750 on the main board. Verify the signal is ~3 V

and toggles

p-p

low at regular intervals.

the signal on pin 61 looks OK, put the scope probe on pin 63. Pin 63 is

d. If

the data line and the signal will have a somewhat random lookdepending on the audio source. Verify that the signal is toggling and is ~3 V

p-p

e. If either signal is bad, suspect the cable; otherwise replace the main board.

The EYE/PHY functions depend on the Loopthrough, EYE, and Main boards, and the interconnections between them.

NOTE. Options EYE and PHY are available only for the WVR7120 instrument.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–21

General Maintenance

Major Operatio

Check that J6, the 60-pin connector between the Eye and Main boards, is correctly mated and secure.

Check that the power supply cable is securely plugged into J3, the 2-pin connector on the Eye board.

Check that the coaxial cables from the Loopthrough board to the Eye board are securely connected and not crossed.

Eye Pattern or Jitter Waveform Display Problems. Jitter waveform display is only available with Option PHY. The Eye Pattern and Jitter Waveform displays are formed from data sampled from the input signal and the recovered clock sine wave. Eye display bandwidth, rise and fall time, and transient response aberrations depend on both the Eye and the Loopthrough boards.

When the same signal is applied to both channels, a problem that appears on one channel but not the other indicates a faulty Loopthrough board. If the problem

s on both channels, then suspect a faulty Eye board. It is p ossible, though,

appear that both channels of the Loopthrough board contain the same fault.

Cable Loss, Approx Cable, and Source Level Readout Problems. These measurements are made by a "cable meter" circuit. This circuit is located on the EYE board, but is largely independent from the Eye and Jitter display and

urement functions. If other EYE/PHY functions operate correctly, then a

meas "cable meter" circuit problem is indicated.

nal or Diagnostic Failure.

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

tter noise ﬂoor depends on adjustment of Eye HD CDR calibration items.

Eye Amplitude, Eye Risetime, Eye Falltime, and Eye Rise-Fall (difference) Readout Problems. These readouts are only available with Option PHY. These readouts

are derived from the Eye pattern display. Measurement accuracy depends on the Eye Gain calibration items, and on front-end bandwidth and transient response, which are not adjustable. Operation is unlikely to fail if the basic Eye pattern display works correctly.

It is normal for these measurements to stop or become intermittent if there is excessive waveform noise, aberrations, jitter, or cable loss.

4–22 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Figure 4-1: Main board indicator LED, connector, and test point locations

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–23

General Maintenance

Figure 4-2: Options AD and D DE Audio board, component side

4–24 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

General Maintenance

Figure 4 -3: Options AD and DDE Audio board back side indicator LED and test point locations

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–25

General Maintenance

Figure 4-4: F

ront panel board indicator LED locations (viewed from back side)

4–26 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Repackaging Instructions

This section contains the information needed to repackage the waveform rasterizer for shipment or storage.

Packaging

When repacking the instrument for shipment, use the original packaging. If the packagi 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 the Service Center

ng is unavailable or unﬁt for use, contact your local Tektronix

Repackaging Instructions

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.

and phone number of a contact person.

Name

Type and serial number of the instrument.

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.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 4–27

Repackaging Instructions

4–28 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Mechanical Parts

Replaceable Parts

This section contains a list of the replaceable modules and replaceable parts for the WVR6020, WVR7020, and WVR7120 Waveform Rasterizers. 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

Parts Ordering Information

installed.

Module Servicing

Replaceme representative.

Changes t 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:

Part number

Instrument type or model number

Instr

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 chan

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.

nt parts are available through your local Tektronix ﬁeld ofﬁce or

o Tektronix products are sometimes made to accommodate improved

ument serial number

ge in part number.

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.

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–1

Replaceable Parts

Using the Replaceable Parts Lists

Use this list to identify and order replacement parts. The following table describes each column in the parts list.

Column Column name Description

2Tektronixp

3and4

Figure & index number Items in this section are referenced by ﬁgure and index numbers to the

art number

Serial numb

Qty This indicates the quantity of parts used.

Name & des

cription

exploded view illustrations that follow.

Use this part number when ordering replacement parts from Tektronix.

Column thre Column four indicates the serial number at which the part was discontinued. No entry indicates the part is good for all serial numbers.

An item na space limitations, an item name may sometimes appear as incomplete. Use the U.S. Federal Catalog handbook H6-1 for further item name identiﬁcation.

me is separated from the description by a colon (:). Because of

e indicates the serial number at which the part was ﬁrst effective.

Abbreviations

Abbreviations conform to American National Standard ANSI Y1.1-1972.

5–2 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Fig. & index number

5-1

-1 211-0734-00 16

-2 200-4873-00 1

-3

-4 146-0116-00 1

-5

-6 131-5450-00

-7

-8 131-4131-00 1

-9 211-0410-00 2

-10 119-7086-00 1

-11 351-

-12 212-0158-00 8

-13 351-0751-01 1

-14 211-0721-00 4

-15 119

-16 311-2570-00 3

-17 210-1039-00 6

-18 671-5382-01 1

-20 260-2774-01 1

-21 354-0025-00 1

-22 213-0216-00 1

-23 367-0530-00 2

Tektronix part number

671-6282-00 1

671-6249-00 1

671-6043-02 1

671-6100-02 1

131-4046-00

214-3903-00

0104-03

-6801-00

66-0816-01

Serial no. effective

Serial no. discont’d Qty Name & descript

CIRCUIT BOARDS AND CHASSIS

SCREW,MACHINE; 6-32 X 0.25O,FLH100,STL,CDPL,T-10 TORX DR

COVER; TOP,ST

CIRCUIT BD ASSY; DUAL MAIN NO COMPOSITE,3

CKT BD SUBASSY; DUAL MAIN WITH COMPOSITE, 389378900, WIRED,UNTE

CIRCUIT BD ASSY; MAIN,NO COMPOSITE,389-3789-00 WIRED,TESTED (WVR6020 ON

CIRCUIT BD ASSY; MAIN WITH COMPOSITE,389-3789-00 WIRED,TESTED (WVR6020 O

BATTERY, DRY; 3.0V,850MAH,LITHIUM,0.57X1 INCHES;CR4250SE,SAFETY CONTROLL

6* SCREW,J

CONN,DSUB; PCB/PNL,FEMALE,RTANG,15 POS,0.318 MLG X 0.125 TAIL,4-4

CONN,DSUB; PCB,HIGH DENSITY;FEMALE,RTANG,15 POS,0.078 CTR,0.3 GOLD,SAFETY CONTROLLED

THD, X 0.312 THD EXT 4-40

CONN,P CONTROLLED

SCR,AS

FILTER,EMI; AC LINE CONNECTOR/INPUT

R;6.0A,120-250VAC,DC-400 HZ,2.2 NF CY,100 NF CX,IEC

FILTE INPUT,FAST-ON/SOLDER LUG OUTPUT,CHASSIS MOUNT,SAFETY CONTROLLED;FN9222-6/06

SL SECT,DWR EXT; 12.625 L,W/O HARDWARE SAFETY CONTROLLED

W,MACHINE; 8-32 X 0.375,PNH,STL,CDPL,T-20 TORX DR

SCRE

TRK,SL OUT SECT; STATIONARY & INTERMEDIATE SAFETY

TROLLED

CON

SCREW,MACHINE; 6-32 X 0.375,PNH,STL,CDPL,T-15 TORX DR

POWER SUPPLY; 110W,AC-DC,5VDC 22A OUT,90-264VAC 47-63HZ IN,PFC,75% EFF,OPEN FRAME,6.5 X 3 X 1.26 IN,UL,CSA,VDE,SAFETY

NTROLLED

ENCODER; DIGITAL CONTACTING ENCODER; PCB MOUNT, .354 DIA

LE,1.0 L X .25 DIA SHAFT, NO DETENTS, 36 COUNTS PER TURN.

HO ECW1J-B32-SEO/058

ASHER,LOCK; 0.521 ID,INT,0.025 THK,SST

CIRCUIT BD ASSY; FRONT PANEL,TESTED,389-3257-00 WIRED

KNOB; SILVER GRAY, 0.420OD, 0.520H, PC/ABS BAYBLEND FR110,FRONT PAN EL

SWITCH,KEYPAD; ELASTOMERIC,FRONT PANEL,PUSHBUTTON

RING,RETAINING; EXTERNAL,U/O 0.187 DIA SFT

THUMBSCREW; 10-32 X 0.85,0.375 OD HD,SST W/SLOT

HANDLE,BOW; AL,1.0 X 1.25,STAIN FINISH,SAFETY CONTROLLED

ion

ANDARD INSTRUMENT,0.050 AL,SAFETY CONTROLLED

89-3789-00 WIRED,TESTED (WVR7020, WVR7120 O NLY)

STED (WVR7020, WVR7120 ONLY)

LY)

NLY)

0 THD INSERTS,BD RETENTION

50 MLG X 0.125 TAIL,4-40 THD INSERT,BD RETENTION,30

ACK; 4-40 X 0.312 LONG,0.188 H HEX HEAD STAND OFF,4-40 INT

LUG,ELEC; MALE W/LOCKING ADPTR,EXT MTG,SAFETY

SEM WSHR; 4-40 X 0.437,PNH,STL,CDPL,T-10 TORX DR

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–3

Replaceable Parts

Fig. & index number

-24

-25 101-0160-01 1

-26 441-2295-0

-27 210-0457-00

-28 150-5009-00 1

-29 211-0410-00 6

-30 150-0277

-31 441-236

-32 211 -072

-33 337-4309-00 1

-34 211-1161-00 8

-35 119-70

-36 407-5

-37 671-9935-01 1

-38 131-m057-00 1

-39 131-

-40 374-

Quantity varies with instrument and audio option.

Tektronix part number

335-1835-00 1

335-1836-00 1

335-1837-00 1

335-1838-00 1

335-1839-00 1

335-1840-00 1

-00

2-00

36-00

010-00

3925-00

4371-00

Serial no. effective

Serial no. discont’d Qty Name & descript

ion

MARKER,IDENT, FRONT PANEL ID W/O COMPOSITE, W/EYE, WVR7120

MARKER,IDENT, FRONT PANEL ID W/ COMPOSITE, W/EYE,WVR7120

MARKER,IDENT

MARKER,IDENT, FRONT PANEL ID W/ COMPOSITE, W/EYE,WVR7020

MARKER,IDENT, FRONT PANEL ID W/O COMPOSITE, WVR6020

MARKER,IDE

TRIM RING; FRONT,19.000 X 1.718 X 0.345,PC/ABS

CHASSIS,FRONT; 0.050 AL,SAFETY CONTROLLED

NUT,PL,AS

DIODE,OPTO; LED;HI-EFFIC RED,626NM,3.4MCD AT 10MA;HLMP

SCR,ASSEM WSHR; 4-40 X 0.437,PNH,STL,CDPL,T-10 TORX DR

LT EMITTING DIODE; GREEN, 570 NM, 1206, REVERSE MOUNT; APTD3216MGCK-01

CHASSIS,MAIN; STANDARD INSTRUMENT,0.050 AL,W/HARDWARE,SAFETY CONTROLLED

SCREW,MACHINE; 6-32 X 0.250,PNH,STL,CDPL,T-15 TORX DR

SHIELD

SCREW,MACHINE; 4-40 X 1.500,PAN HEAD,T-10 TORX,ZINC PL

FAN ASSEMBLY; DC,12V;0.105A,8.6 CFM,30DBA,3 LEAD, TACH OUTPUT, WITH CONN & HOUSING,SAFETY CONTROLLED

BRACKET ASSY,FAN; 0.050 AL,SAFETY CONTROLLED

CIRCU

CONN,RF:PCB,FEMALE,BNC,75OHM,EDGE LAUNCH TYPE

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

SHIELD; POWER SUPPLY BOTTOM, 0.030 POLYCARBONATE, SAFETY CONTROLLED

, FRONT PANEL ID W/O COMPOSITE, W/EYE,WVR7020

NT, FRONT PANEL ID WITH COMPOSITE, WVR6020

SEM WA; 6-32 X 0.312,STL CD PL,W/LOCKWASHER

-6305-021, YOKE LEAD BEND, 12MM T&R

; POWER SUPPLY,0.020 POLYCARBONATE,SAFETY CONTROLLED

IT BD ASSY; LOOP THROUGH,,389-3568-00,WIRED

5–4 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-1: Replaceable parts, circuit boards and chassis

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–5

Replaceable Parts

Fig. & index number

5-2

-1 174-5224-00 1

-2 174-4769-00 1

-3 260-5012-00 1

-4 134-0246-00 12

-5

-6 210-1039-00 10

-7

-8 119-5067-00 4

-9 131-7257-00 1

-10 260-5015-00 1

-11 131-3572-00 1

-12 260-5000-00 1

-13 150-1022-00 1

-14 1

-15 131-6187-00 1

-16 131-7244-00 2

-17 131-5457-00 3

-18 174-4771-00 1

-19 200-4800-00 1

-20 210-0457-00

-21 211-0410-00

Quantity varies with instrument m odel.

Tektronix part number

131-7270-00 10

220-0497-00 10

Serial no. effective

Serial no. discont’d Qty Name & description

CABLES, CONNECTORS, ETC.

CA ASSY,SP; PWR,BR;10.250 L;18 AWG;CONN HDR 1 X 8 AND CONN HDR 1 X12 AND 1X2;PWR SUPPLY TO MAIN BD AND EYE BDS

CA ASSY,SP; HV,BR,15.00 L & 4.00 L;CONN EACH END;LINE FILTER TO PWR SUPPLY,SAFETY CONTROLLED

SWITCH,DIP; SPST,SLIDE,DIP,4 POSITION,GOLD OVER NICKEL,0.4VA @ 20VDC,0.05 HALF PITCH;TD04H0SK1,SMD

PLUG,HOLE COVER; BUTTON PLUG,;0.578 HEAD DIA X 0.406 THK,ACCOM 0.5 DIA HOLE,0.015-0.125 THK PNL,NYLON,BLACK

CONN,RF PLUG; BNC,PCB,PNL MNT,FEMALE,RTANG,75 OHM, 0.510 H X 0.169 TAIL,LOW PROFILE ZINC DIE CAST HOUSING

WASHER,LOCK; 0.521 ID,INT,0.025 THK,SST

NUT,PLAIN,HEX; 0.5-28 X 0.562 HEX,BRS CD PL

FILTER,RFI; EMI, COMMON MODE CHOKE COIL; 2LINES, 200 0HM IMP, 20- 300MHZ, 50V, 0.5A; 8 PIN SMD; ZJYS51R5-4P

CONN,JACK; PCB/PNL,RJ45,CAT5,W/LEDS YELLOW & GREEN,FEMALE,RTANG,8 POS,0.1 CTR,0.528 H X 0.138 TAIL,10/100 BASE TX AND RX MAGNETICS MODULE,SAFETY CONTROLLED

SWITCH,PUSH; SPST,TACT;50MA,50V,MOMENTARY,SILVER CONTACTS;KSC221G,GULLWING SMD,T&R

CONN,HDR:; PCB,;MALE,STR,2 X 7,0.1 CTR,0.385 H X 0.120 TAIL,SHRD/4 SIDES,CTR PLZ,30 GOLD,0.150 END DIM;,,

SWITCH,SLIDE; SPST;DIP8 POSITION,GOLD OVER NICkEL,3A,2PF,SEALED;90HBW08S

DISPLAY,OPTO; ,LED;RED,660NM,7SEG,0.3 INCH DISPLAY,125UCD PER SEGMENT AT10MA,COMMON ANODE,LEFT HAND DECIMAL;MAN72A

FUSE; UL/IEC127, F3.15A H, 250VAC (5 x 20 m m)

CONN,HDR PWR; PCB,MALE,STR,1 X 8,0.156 CTR,0.450 MLG X 0.125 TAIL,PLZ WALL,TIN,SAFETY CONTROLLED

CONN,HDR; SMD,MALE,STR,2 X 5,0.100 CTR,0.350 H,0.165 MLG,SHRD/4 SIDES,MIL PLZ,30 GOLD,SAFETY CONTROLLED (ONE ON MAIN BOARD, ONE ON FRONT PANEL)

CONN,HDR; PCB,;MALE,STR,1 X 3,0.10 CTR,0.535 H X 0.130 TAIL,SHRD/4 SIDES,CTR PLZ,LATCHING,BD RETENTION,30 GOLD,

CA ASSY,SP; IDC,RIBBON,10.00 L,DOUBLE ENDED,FEMALE,2 X 5 POS;F/P BD TO MAIN BD,SAFETY CONTROLLED

COVER,MINI; 2X FEX-440,SAFETY CONTROLLED

NUT,PL,ASSEM WA; 6-32 X 0.312,STL CD PL,W/LOCKWASHER

SCR,ASSEM WSHR; 4-40 X 0.437,PNH,STL,CDPL,T-10 TORX DR

5–6 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-2: WVR6020, WVR7020, and WVR7120 replaceable cables, connectors, and other mechanical parts

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–7

Replaceable Parts

Fig. & index number

5-3

-1 119-5067-00 4

-2 131-7257-00 1

-3 260-5015-00 1

-4 131-5457-00 3

-5

-6 146-0116-00 1

-7

-8 159-5010-00 2

-9 159-5022-00 3

-10 131-7244-00 3

-11 159-5003-00 1

-12 159-5008-00 2

Tektronix part number

150-5037-00 1

260-5000-00 1

Serial no. effective

Serial no. discont’d Qty Name & description

MAIN BOARD

FILTER,RFI; EMI,COMMON MODE CHOKE COIL;2LINES,200 0HM IMP,20- 300MHZ,50V,0.5A;8 PIN SMD;ZJYS51R5-4P

CONN,JACK; PCB/PNL,RJ45,CAT5,W/LEDS YELLOW & GREEN,FEMALE,RTANG,8 POS,0.1 CTR,0.528 H X 0.138 TAIL,10/100 BASE TX AND RX MAGNETICS MODULE,SAFETY CONTROLLED

SWITCH,PUSH; SPST,TACT;50MA,50V,MOMENTARY,SILVER CONTACTS;KSC221G,GULLWING SMD,T&R

CONN,HDR; PCB,MALE,STR,1 X 3,0.10 CTR,0.535 H X 0.130 TAIL,SHRD/4 SIDES,CTR PLZ,LATCHING,BD RETENTION,30 GOLD, SAFETY CONTROLLED

DIODE,OPTO; LED;GREEN,571NM,4.0 TO 9.0 MCD AT 20MA,155 DEG VIEW ANGLE,TINTED,DIFFUSED;HSMG-C170,SMD,0805,8MM T&R

BATTERY,DRY; 3.0V,850MAH,LITHIUM,0.57 X1.0;CR4250SE,SAFETY CONTROLLED

SWITCH,SLIDE; SPST;DIP8 POSITION,GOLD OVER NICKEL,3A,2PF,SEALED;90HBW08S,44MM T&R

FUSE,SMD; 7A,125V,FAST BLOW,0.1 X 0.1X 0.24;UL REG,CSA CERT,SAFETY CONTROLLED

FUSE; 5.0A,125V;FAST BLOW,0.1 X 0.1 X 0.24,UL REG,CSA CERT;451005,SAFETY CONTROLLED

CONN,HDR; SMD,MALE,STR,2 X 5,0.100 CTR,0.350 H,0.165 MLG,SHRD/4 SIDES,MIL PLZ,30 GOLD,SAFETY CONTROLLED

FUSE,THRM,CHIP; SELF RESETTING FUSE,1.1A HOLD,2.2A TRIP AT 20 DEG C,30V MAX,SAFETY CONTROLLED (MAIN)

FUSE,THRM,CHIP; SELF RESETTING FUSE,1.5A HOLD,3.0A TRIP AT 20 DEG C,30V MAX,SAFETY CONTROLLED (MAIN)

5–8 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-3: Main board replaceable components and connectors, WVR7020, WVR7120, and WVR6020

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–9

Replaceable Parts

Fig. & index number

5-4

-1 671-9938-02 1

-2 131-7270-00 8

-3 220-0497-00 8

-4 210-1039-00 8

-5

-6 131-7575-00 1

-7

-8 664-6099-00 1

-8 664-9936-00 1

-9 174-5301-00 2

-10 119-7167-00 1

-11 129-1570-00 3

-12 131-7430-00 1

-13 214-3903-00 2

not shown 174-4281-00 2

not shown 200-4800-00 1

not shown 174-4586-00 1

Tektronix part number

174-4973-00 1

129-0208-00

Serial no. effective

Serial no. discont’d Qty Name & description

OPTIONS EYE/PHY AND AUDIO - BOARDS AND CONNECTORS

CIRCUIT BD ASSY; DIGITAL ANALOG AUDIO, 389-3575-00 WIRED,TESTED WVR6020 & WVR7120 AUDIO OPTIONS ONLY.

CONN,RF,PLUG; BNC,PCB,PNL MNT,FEMALE,RTANG,75 OHM, 0.510 H X 0.169 TAIL,LOW PROFILE ZINC DIE CAST HOUSING

NUT,PLAIN,HEX; 0.5-28 X 0.562 HEX,BRS CD PL

WASHER,LOCK; 0.521 ID,INT,0.025 THK,SST

WVR6020 & WVR7120 OPTIONS AD & DDE ONLY. CABLE ASSY; 80 POS. CABLE WITH TWO 2X40 CONNECTORS

CONN,HDR; SMD,SYS50;MALE,STR,2 X 40,0.05 X 0.1 CTR,0.480H,SHRD/4,CTR PLZ,LATCHING,30 GOLD,SAFETY CONTROLLED

SPACER,POST; 0.312 L,6-32 STUD,BRS,ELECTROLESS NICKEL,0.25 HEX (OPTIONS EYE AND PHY ONLY)

CIRCUIT BD.SUB ASSY; SD, EYE BOARD,FUNCTIONAL BD.TEST LEVEL 389-3569-00, WIRED (WVR6020, OPTIONS EYE AND PHY ONLY )

CIRCUIT BD.SUB ASSY; HD/SD EYE BOARD,FUNCT BD.TEST LEVEL, 389-3569-00 WIRED (WVR7120, OPTIONS EYE AND PHY ONLY)

CABLE ASSY ELEC: RF,50 OHM COAX, SMA/PLUG/ST (OPTIONS EYE AND PHY ONLY)

WVR6020 & WVR7120 OPTION DDE ONLY. CIRCUIT BD ASSY; CAT552 DOLBY E/DIGITAL DECODER MODULE; 72 PIN SIMM; SAFETY CONTROLLED

POST,SPACER; 1.385 X 0.250 X 0.375 DEEP

WVR6020 & WVR7120 OPTIONS AD & DDE ONLY.. CONN,DSUB; SLDR CUP,MALE,STR,62 POS,0.100 CTR,30 GOLD

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

CA ASSY.SP; FLAT RIBBON,IDC,30 AWG,6.100L,40 POS,-DUBLIN,SAFETY CONTROLLED

COVER,MINI; 2X FEX-440,SAFETY CONTROLLED

CA ASSY; RIBBON,2.0 L,DOUBLE ENDED,IDC,FEMALE,2 X 20,0.050 CTR,PLZ

5–10 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-4: Option EYE/PHY and Audio Options boards and connectors

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–11

Replaceable Parts

Fig. & index number

5-5

-1 276-5012-00

-2 131-7272-00 1

-3 136-1435-00 1

-4 131-7575-00 1

Count vari

Tektronix part number

es with option

Serial no. effective

Serial no. discont’d Qty Name & description

AUDIO BOARD - FRONT

* PB-FREE;EMI SUPPRESSION; FERRITE BEAD;120 OHMS@100MHZ,

IMAX=200MA, DCR<0.2 OHM;BLM11A121SPT, 0603, 7 INCH T&R

CONN, DSUB; PCB/PNL, FEMALE, 62 POS, RTANG, 0.100 CTR, 0.495 H X 0.125 TAIL, 30 GOLD, 4-40 THD INSERTS, BOARD RETENTION, HIGH DENSITY CONN

SOCKET, SIMM; PCB, FEMALE, RTANG, 1 X 72, 0.05 CTR, 0.448 H X

0.11 TAIL, LEFT POLARIZED, 30 GOLD

CONN, HDR; SMD, SYS50;MALE, STR, 2 X 40, 0.05 X 0.1 CTR, 0.480H, SHRD/4, CTR PLZ, LATCHING, 30 GOLD, SAFETY CONTROLLED

5–12 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-5: Audio board component-side components, Options AD and DDE

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–13

Replaceable Parts

Fig. & index number

5-6

-1 276-5012-00 20

Tektronix part number

Serial no. effective

Serial no. discont’d Qty Name & description

AUDIO BOARD - BACK

PB-FREE; EMI SUPPRESSION; FERRITE BEAD;120 OHMS@100MHZ, IMAX=200MA, DCR<0.2 OHM;BLM11A121SPT, 0603, 7 INCH T&R

5–14 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-6: Audio board back-side components, Options AD and DDE

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–15

Replaceable Parts

Fig. & index number

5-7

-1 200-4874-00 1

-2 131-3295-00 1

-3

-4 214-3903-00

-5

-6 441-2295-00 1

-7

Tektronix part number

389-3574-00 1

671-9937-00 1

211-0721-00

441-2361-00 1

Serial no. effective

Serial no. discont’d Qty Name & description

WVRRFP

COVER; TOP TO REMOTE FRONT PANEL,0.050 AL,SAFETY CONTROLLED

CONN,RCPT,ELEC; HEADER,2 X 25,0.1 SPACING

CIRCUIT BOARD; FRONT PANEL REGULATOR,SAFETY CONTROLLED

CIRCUIT BD ASSY; FRONT PANEL REGULATOR,389-3574-00 WIRED,TESTED

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

SCREW,MACHINE; 6-32 X 0.375,PNH,STL,CDPL,T-15 TORX DR

CHASSIS,FRONT; REMOTE FRONT PANEL,0.050 AL

CHASSIS,MAIN; REMOTE FRONT PANEL,,0.050 AL,W/HARDWARE,SAFETY CONTROLLED

5–16 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Figure 5-7: WVRRFP

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–17

Replaceable Parts

Fig. & index number

5-8

-1 012-1688-00 1

-2 200-4804-00 1

-3 131-0422-00 1

Tektronix part number

Serial no. effective

Serial no. discont’d Qty Name & description

ANALOG AUDIO BREAKOUT CABLE - OPTIONAL ACCESSORY

WVR7020, WVR7120 AND WVR6020 WITH OPTIONS AD AND DDE ONLY. CABLE ASSEMBLY; ANALOG/AUDIO BREAKOUT

COVER; SHIELD,ELEC CONN,37 POS DSUB,ZINC

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 5-8: Analog audio breakout cable assembly

5–18 WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual

Replaceable Parts

Fig. & index number

Tektronix part number

071-2231-xx 1

071-2232-xx 1

071-2233-xx 1

071-2238-x

063-4056-xx 1

See Description

Serial no. effective

Serial no. discont’d Qty Name & descript

ion

STANDARD ACCESSORIES

MANUAL, TECH;QUICK START USER MANUAL, ENGLISH, WVR6020/WVR7020/WVR7120 (OPTION L0 ONLY)

MANUAL, TECH;QUICK START USER MANUAL, JAPANESE, WVR6020/WVR7020/WVR7120 (OPTION L5 ONLY)

MANUAL, TECH;QUICK START USER MANUAL, SIMPLIFIED CHINESE, WVR6020/WVR7020/WVR7120 (OPTION L7 ONLY)

MANUAL, TECH;RELEASE NOTES, WVR6020/WVR7020/WVR7120

DOCUMENTAT

CABLE ASSY, POWER:

ION;PRODUCT CD, ENGLISH, WVR6020/WVR7020/WVR7120

OPTION COUNTRY P/N

A10

N. AMERICA

UNIV EURO

AUSTRALIA

USA 240V

LAND

SWITZER

JAPAN

CHINA

-00

161-0066

161-0066-09

161-0066-10

6-13

161-006

161-0066-12

161-0154-00

08-00

161-A0

161-0304-00

WVR6020, WVR7020, and WVR7120 Waveform Rasterizers Service Manual 5–19

Tektronix WVR6020, WVR7120, WVR7000 Opt. MB, WVR7020, WVRRFP Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual