Tektronix HDVG1 Service Manual
Service Manual
HDVG1
HDTV Digital Video Generator
071-0594-51
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are
protected by United States copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patent s, issued and pending. Information in this publication supercedes
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. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
H In North America, call 1-800-833-9200.
H Worldwide, visit www.tektronix.com to find contacts in your area.
Warranty 2
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year
from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either
will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the
defective product. Parts, modules and replacement products used by Tektronix for warranty work may be new or
reconditioned t o like new performance. All replaced parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by Tektronix, with shipping charges prepa id.
Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the
Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any
other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting
from attempts by personnel other than Tektronix repre sentatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction
caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with other
products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR
IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO
REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO
THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE
LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE
OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES.
Table of Contents
Specifications
Operating Information
General Safety Summary v...................................
Service Safety Summary vii....................................
Environmental Consid erations ix...............................
Preface xi...................................................
About This Manual xi...............................................
Related Manuals xii.................................................
Product Description 1--1..............................................
Characteristics 1--2..................................................
Certification and Compliances 1--3......................................
Installation 2--1...............................................
Preventing Component Damage 2--1.....................................
Module Installation 2--2...............................................
Signal and Logo Backup and Module Removal 2--8........................
Functional Overview 2--11.......................................
Operating Procedures 2--13......................................
Power On and Select the Module 2--14....................................
Select the Output Signal 2--15...........................................
Active Signal Parameters 2-- 17..........................................
Module Parameters 2--21...............................................
Theory of Operation
Signal Memory 3--2..................................................
Embedded Audio 3--4................................................
Performance Verification
Required Equipment 4--1..............................................
Calibration Data Report 4--2...........................................
Preparation for Performance Verification 4--3.............................
Performance Verification Procedures 4--5.................................
HDVG1 HDTV Digital Video Generator Service Manual
i
Table of Contents
Maintenance
Option
Preparation 5--1.....................................................
Inspection and Cleaning 5--3...........................................
Repackaging Instructions 5--3..........................................
Removal and Replacement 5--7..................................
Tools Required 5--7..................................................
Removing the Rear Panel 5--7..........................................
Replacing the Shie ld 5--8..............................................
Replacing the Rear Panel Connectors 5--8................................
Troubleshooting Procedures 5--9.................................
Equipment Required 5--9..............................................
General Troubleshooting 5--10..........................................
Fault Symptom Table 5--11.............................................
Troubleshooting Flowcharts 5--12........................................
Option D1 Description 6--1............................................
Diagram
Replaceable Parts List
Diagram 7--1.................................................
Replaceable Parts List 8--1......................................
Parts Ordering Information 8--1.........................................
Using the Replaceable Parts List 8--2....................................
ii
HDVG1 HDTV Digital Video Generator Service Manual
List of Figures
Table of Contents
Figure 2--1: TG2000 Platform mainframe rear panel, showing slot
numbering 2--2............................................
Figure 2--2: Top cover removal 2--3...............................
Figure 2--3: Removing the rear panel 2--4.........................
Figure 2--4: Module flange 2--4..................................
Figure 2--5: Installing the module 2--5............................
Figure 2--6: Top screw 2--6......................................
Figure 2--7: Menu structure for the HDVG1 Generator module 2--11...
Figure 3--1: Simplified block diagram of the HDVG1 Generator
module 3--2...............................................
Figure 3--2: Signal memory layout 3--3............................
Figure 4--1: SDI correctness and digital audio output check
connection 4--6............................................
Figure 4--2: Eye pattern check connection 4--9.....................
Figure 4--3: Example of eye pattern for an acceptable output signal 4--10
Figure 4--4: Trigger output check connection 4--11...................
Figure 5--1: Placing the module in the protective wrapping 5--4.......
Figure 5--2: Placing the module in the shipping carton 5--5...........
Figure 5--3: Flowchart for major difficulties with module 5--12........
Figure 5--4: Flowchart for checking the current module installation
slot 5--13...................................................
Figure 5--5: Flowchart for checking the module in a different slot 5--14..
Figure 5--6: Flowchart for failure to power up 5--15..................
Figure 5--7: Flowchart for signals lost after power down 5--16.........
Figure 5--8: Measuring the battery charging circuit 5--17.............
Figure 5--9: Flowchart for wrong signal on output 5--17..............
Figure 5--10: Flowchart for missing output signal 5--18...............
Figure 7--1: HDVG1 Generator module connections 7--1.............
Figure 8--1: Exploded view 8--4..................................
HDVG1 HDTV Digital Video Generator Service Manual
iii
Table of Contents
List of Tables
Table 1--1: Electrical specifications (typical) 1--2...................
Table 1--2: Certifications and compliances 1--3....................
Table 2--1: Module slot assignments 2--2..........................
Table 3--1: Supported embedded audio frequencies 3--4.............
Table 4--1: Equipment required for Performance Verification 4--1....
Table 4--2: HDVG1 Calibration Data Report 4--2..................
Table 5--1: Required tools 5--7..................................
Table 5--2: Equipment required for troubleshooting 5--9............
Table 5--3: Fault symptom table 5--11.............................
iv
HDVG1 HDTV Digital Video Generator Service Manual
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. T o avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
To Avoid Fire or
Personal Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Ground the Product. This product is grounded t hrough 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.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product m anual for further ratings
information before making connections to the product.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspect ed Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
HDVG1 HDTV Digital Video Generator Service Manual
v
General Safety Summary
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
WARNING
High Voltage
Double
Insulated
Protective Ground
(Earth) Terminal
vi
HDVG1 HDTV Digital Video Generator Service Manual
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, disconnect the mains power by means
of the power cord or, if provided, the power switch.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.
HDVG1 HDTV Digital Video Generator Service Manual
vii
Service Safety Summary
viii
HDVG1 HDTV Digital Video Generator Service Manual
Environmental Considerations
This section provides information about the environmental impact of the
product.
Product End-of-Life
Handling
Restriction of Hazardous
Substances
Observe the following guidelines when recycling an instrument or component:
Equipment Recycling. Production of this equipment required the extraction and
use of natural resources. The equipment may contain substances that could be
harmful t o the environment or human health if improperly handled at the
product’s end of life. In order to avoid release of such substances into the
environment and to reduce the use of natural resources, we encourage you to
recycle this product in an appropriate system that will ensure that most of the
materials are reused or recycled appropriately.
The symbol shown t o the left indicates that this product
complies with the European Union’s requirements
according to Directive 2002/96/EC on waste electrical and
electronic equipment (WEEE). For information about
recycling options, check the Support/Service section of t he
Tektronix Web site (www.tektronix.com).
This product has been classified as Monitoring and C ontrol equipment, and is
outside the scope of the 2002/95/EC RoHS Directive. This product complies
with the RoHS Directive requirements expect for the presence of hexavalent
chromium in the surface coating of the aluminum chassis parts, assembly
hardware, and 63/37 tin/lead solder used in the fabrication of the circuit boards.
HDVG1 HDTV Digital Video Generator Service Manual
ix
Environmental C onsiderations
x
HDVG1 HDTV Digital Video Generator Service Manual
Preface
About This Manual
You have purchased this optional service manual for the HDVG1 HDTV Digital
Vi deo Generator module. To optimize troubleshooting capability, you should
also purchase t he service manual for the TG2000 Platform mainframe.
This manual contains information for servicing the HDVG1 HDTV Digital
Vi deo Generator module to a module level. The information is designed only for
qualified service technicians, with moderate experience in analog circuits, digital
circuits, and television technology.
This manual is composed of the following sections:
H Specifications provides instrument specifications tables.
H Operating Information provides basic operating information.
H Theory of Operation is an overview of the module’s design.
H Performance Verification contains procedures to perform the operation tests.
H Maintenance contains installation, removal and replacement, and trouble-
shooting instructions.
H Option contains a description of available option for the HDVG1 Generator
module.
H Diagram contains interconnect diagram showing the connections between
the HDVG1 Generator module, the mainframe, and other modules.
H Replaceable Parts list the part numbers for replacement parts that you can
order. Exploded view illustrations help you to identify t he parts.
HDVG1 HDTV Digital Video Generator Service Manual
xi
Preface
Related Manuals
The following documents are related to the HDVG1 Generator module.
H The TG2000 Signal Generation Platform Service Manual describes how to
service the mainframe to the module level, and includes a troubleshooting
disk that is required for all module and mainframe troubleshooting. This
optional manual must be ordered separately, and is recommended before
beginning any troubleshooting.
H The TG2000 Signal Generation Platform User Manual describes how to use
the TG2000 Platform. It also contains information about SCPI commands,
programming structure, and status and events for the TG2000 S i gnal
Generation Platform. Some of this information applies to all generator
modules, including the HDVG1 Generator module.
H The HDVG1 HDTV Digital Video Generator User Manual contains
operating information and information about SCPI commands for the
HDVG1 Generator module.
xii
HDVG1 HDTV Digital Video Generator Service Manual
Specifications
Specifications
Product Description
This section contains a general product description of the HDVG1 Generator
module followed by the operating specifications of the module.
The HDVG1 Generator module is an HDTV test signal generator which
provides 1.485 Gb/s serial digital video signals in various formats. The module
contains the following features:
H Produces custom test signals using SDP2000 software package
H Three serial digital video outputs
H Signal parameters such as active video gain and chroma/luma gain are
adjustable in real-time from the front panel.
H Rear-panel trigger output, used to trigger an oscilloscope or other video
equipment
H Overlay of circles, text, or logo on the video signal
H Up to 8 channels of Embedded Audio
H Full remote control using GP IB or RS-232C interface
Embedded Audio. The HDVG1 Generator module can generate video signals with
20-bit or 24-bit embedded digital audio with a sample rate of 48 kHz. Multiple
user-selectable frequencies and amplitudes are available with channel and status
independence.
HDVG1 HDTV Digital Video Generator Service Manual
1- 1
Specifications
Characteristics
This section contains the specifications for the HDVG1 Generator module.
Specifications are only valid when the module is installed in a TG2000 P l atform
mainframe. For installation instructions, refer to Module Installation on
page 2--2.
For a list of environmental specifications, refer to the TG2000 Signal Generation
Platform Service Manual.
Table 1- 1: Electrical specifications (typical)
Characteristics Description
Serial Connector
Number of Outputs 3 (BNC)
Signal Amplitude 800 mV typical, into 75 Ω load
Data Rate 1.485 Gbps or 1.485/1.001 Gbps nominal
Overshoot
Rise and Fall Times
DC Offset (Ac coupled)
Jitter
Return Loss
(75 Ω, AC coupled)
Trigger Output
Connector BNC
Amplitude TTL compatible if unterminated
Rise Time
Output Impedance 75 Ω
Typical Power Consumption +5 Volts: 14.0 Watts
≤10%
≤270 ps (Measured at 20% and 80% points)
0.0 V 0.5 V (Into DC termination)
≤135 ps p-p (Alignment jitter)
≥15 dB, 5 MHz to 742.5 MHz
≥10 dB, 742.5 MHz to 1.485 GHz
≤10 ns
-5 Volts: 1.0 Watts
-2 Volts: 1.0 Watts
Battery: 30 mA maximum
1- 2
HDVG1 HDTV Digital Video Generator Service Manual
Certification and Compliances
The certification and compliances for the HDVG1 Generator module are listed in
Tab l e 1- -2 .
Table 1- 2: Certifications and compliances
Category Standards or description
Specifications
EC Declaration of Conformity -EMC
Australia/New Zealand
Declaration of Conformity -- EMC
FCC Compliance Emissions comply with FCC Code of Federal Regulations 47, Part 15, Subpart B, Class A Limits.
EC Declaration of Conformity -Low Voltage
Safety Complies with the following safety standards:
Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was
demonstrated to the following specifications as listed in the Official Journal of the European Union:
EN 55022 Class B Radiated and Conducted Emissions
EN 55103-1 Emissions:
Annex A Magnetic Loop Antenna
EN 55103-2 Immunity:
EN 61000-4-2 Electrostatic Discharge Immunity
EN 61000-4-3 Radiated RF Electromagnetic Field Amplitude Modulated
EN 61000-4-4 Electrical Fast Transient Immunity
EN 61000-4-5 Surge Immunity
EN 61000-4-6 Conducted RF Common Mode Immunity
EN 61000-4-11 Power Line Interruption Immunity
Annex A Magnetic Immunity
Complies with EMC provision of Radiocommunications Act per the following standard(s):
AS/NZS 2064.1/2 Industrial, Scientific, and Medical Equipment: 1992
Compliance was demonstrated to the following specification as listed in the Official Journal of the
European Union:
Low Voltage Directive 73/23/EEC, amended by 93/68/EEC
EN 61010-1:1993 Safety requirements for electrical equipment for measurement control and
laboratory use.
UL3111- 1
CAN/CSA C22.2 No. 1010.1
IEC61010-1
1
1
Standard for electrical measuring and test equipment.
1
Safety requirements for electrical equipment for measurement, control, and
laboratory use.
Safety requirements for electrical equipment for measurement, control,
and laboratory use.
1
UL3111-1, CSA C22.2 No. 1010.1, and IEC61010-1 Safety Certification Compliance Altitude (maximum operating) :
2000 meters
HDVG1 HDTV Digital Video Generator Service Manual
1- 3
Specifications
1- 4
HDVG1 HDTV Digital Video Generator Service Manual
Operating Information
Installation
This section contains instructions for installing the HDVG1 Generator module
into the TG2000 Platform mainframe and instructions for operating the module.
Listed below are the major topics in this section.
H Preventing component damage
H Module installation, including signal sets and output configuration
H Signal backup and module removal
Preventing Component Damage
CAUTION. Electrostatic discharge (ESD) can damage components on this module
and mainframe. To prevent ESD or other component damage, follow the steps
below when installing, removing, or handling modules:
1. Wear a grounded antistatic wrist strap to discharge the static voltage from
your body while installing or removing modules from the TG2000 Pl atform
mainframe.
2. Transport and store modules in a static-protected bag or container.
3. Do not slide the module over any surface.
4. Handle modules as little as possible.
5. Do not touch module components or connector pins.
6. Do not use any devices capable of generating or holding a static charge in the
work area where you remove, install, or handle modules.
7. Avoid handling modules in areas that have a floor or work-surface covering
capable of generating a static charge.
8. Do not remove the module circuit board assembly from the shield. The
shield is an important stiffener which prevents damage to surface-mount
components.
HDVG1 HDTV Digital Video Generator Service Manual
2- 1
Installation
Module Installation
A T-10 torx tip screwdriver is the only tool you need to install the module. A
T-10 torx tip is supplied with the module.
Hardware Installation
To install the module i nto the TG2000 Platform mainframe, perform these steps:
1. Set the TG2000 Platform mainframe rear-panel power switch to off.
2. Unplug the power cord.
3. Select the slot you will use to install the module. Table 2--1 lists the slot
restrictions. Figure 2--1 shows a sample configuration with slot numbers.
Table 2- 1: Module slot assignments
Module Slots in which the module can be installed
AGL1 Genlock module Slot 2 or 3
A VG1 Generator module Slots 2 through 10
AWVG1 Generator module Slots 2 through 10
BG1 Generator module Slots 2 through 10
Clock module Slot 1
CPU module Slot 11
DVG1 Generator module Slots 2 through 10
GP1 GPIB Interface module Slot 10
HDVG1 Generator module Slots 2 through 10
2- 2
Power
Supply
CPU
Module
GPIB
Module
111098 76 5 432 1
DVG1
Module
AVG 1
Module
AWVG 1
Module
HDVG1
Module
AGL1
Module
BG1
Module
Figure 2- 1: TG2000 Platform mainframe rear panel, showing slot numbering
HDVG1 HDTV Digital Video Generator Service Manual
Clock
Module
Installation
WARNING. To avoid a shock hazard, always remove the power cord before
removing the top cover. Failure to remove the power cord can result in serious
injury or death.
4. Refer to Figure 2--2 and remove or loosen all screws to remove the top cover.
Top cover
Loosen screws (12)
Top cover
Remove
screws
(23)
Figure 2- 2: Top cover r e moval
HDVG1 HDTV Digital Video Generator Service Manual
2- 3
Installation
5. Remove the appropriate rear panel as shown in Figure 2--3. Loosen, but do
not remove the bottom screw. You will use it later to secure the module.
Loosen screw
Figure 2- 3: Removing the r ear panel
6. While ensuring correct alignment of the module flange as shown i n
Figure 2--4, lower the module into the desired slot as shown in Figure 2--5.
Flange
2- 4
Figure 2- 4: Module flange
HDVG1 HDTV Digital Video Generator Service Manual
Installation
Figure 2- 5: Installing the module
7. Ensure that the connectors on the Backplane board and the module exactly
match before seating the module.
CAUTION. The connectors must exactly match before you attempt to press the
module firmly in place. If the connectors do not match you could bend a pin that
could damage the module, mainframe, or both when power is applied.
8. Press down evenly on the module until it is firmly in place.
9. Refer to Figure 2--6 and insert and tighten the top screw, which comes with
your module, and tighten the rear panel screw.
HDVG1 HDTV Digital Video Generator Service Manual
2- 5
Installation
Signal Set Installation
Figure 2- 6: Top screw
10. Reinstall the top cover and insert and tighten all top cover screws.
11. Plug in the instrument power cord. Power on the mainframe by setting the
rear-panel power switch to ON and pressing the front-panel power switch.
Wait for the instrument to perform self tests.
12. If you previously moved or removed a module and backed up the instrument,
perform Instrument Restore from Backup now (page 4--12).
If this module was installed in t he TG2000 Platform mainframe at the factory,
signal sets are already i nstalled. If a generator module i s ordered separately, the
user must install signal sets when installing the module. If you need to install
signal sets, use one of the two following procedures: Installing Signals to the
Default Destination or Installing Signals to a Non-default Destination. To
replace signal sets, refer to the TG2000 Signal Generation Platform User
Manual.
2- 6
HDVG1 HDTV Digital Video Generator Service Manual
Loading...