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.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O . B o x 50 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
Worldwide, visit www.tektronix.com to fi nd contacts in your area.
Warranty
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)
year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its
option, either will repair the defective product without charge for parts and labor, or will provide a replacement
in exchange for the defective product. Parts, modules and replacement products 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 p eriod 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' R ESPONSIBILITY 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 ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
[W2 – 15AUG04]
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;
SPG600 & SPG300 Sync Pulse Generators Service Manualvii
List of Tables
viiiSPG600 & SPG300 Sync Pulse Generators 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. To 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 p roduct 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.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do Not 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 Suspected 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.
No Power Switch. Power supply cord is considered the disconnecting device,
disconnect the main power by means of the power cord.
SPG600 & SPG300 Sync Pulse Generators Service Manualix
General Safety Summary
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WAR NIN G. 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:
DANGER
High Voltage
Protective Ground
(Earth) Terminal
ATTENTION
Refer to Manual
xSPG600 & SPG300 Sync Pulse Generators 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.
SPG600 & SPG300 Sync Pulse Generators Service Manualxi
Service Safety Summary
xiiSPG600 & SPG300 Sync Pulse Generators Service Manual
Preface
About This Manual
This is the service manual for the SPG600 and SPG300 Sync Pulse Generators.
This manual contains information needed to service a sync pulse generator to the
module level.
This manual is divided into sections, such as the Specifications and Theory of
Operation. Further, some sections are divided into subsections, such as Product
Description and Removal and Installation Procedures.
Sections containing procedures also contain introductions to those procedures. Be
sure to read these introductions because they provide information needed to do the
service correctly and efficiently. The following are brief descriptions of each
manual section.
Specifications contains a description of the sync pulse generator and the
characteristics that apply to it.
Operating Information includes general information and operating
instructions.
Theory of Operation contains circuit descriptions that support service to the
module level.
Performance Verification contains procedures for confirming that a sync pulse
generator functions properly and meets warranted characteristics.
Adjustment Pr ocedure contains procedures for adjusting a sync pulse generator
to meet warranted characteristics.
Maintenance contains information and procedures for performing preventive
and corrective maintenance of a sync pulse generator. These instructions
include cleaning, module removal and installation, and fault isolation to the
module level.
Options contains descriptions of factory-installed options.
Electrical Parts List contains a statement referring you to Mechanical Parts
List section, where both the electrical and mechanical modules are listed.
Diagrams contains a block diagram and an interconnection diagram.
Mechanical Parts List includes a table of all replaceable modules, their
descriptions, and their Tektronix part numbers.
SPG600 & SPG300 Sync Pulse Generators Service Manualxiii
Preface
Manual Conventions
This manual uses certain conventions with which you should become familiar.
Some sections of the manual contain procedures for you to perform. To keep those
instructions clear and consistent, this manual uses the following conventions:
Names of front-panel controls and menus appear in the same case (initial
capitals, all uppercase, etc.) in the manual as is used on the sync pulse
generator front panel and menu.
Instruction steps are numbered unless there is only one step.
Bold text refers to specific interface elements that you are instructed to select,
click, or clear.
Example: Press the SYSTEM button to display the System menu.
Italic text refer to document names or sections. Italics are also used in NOTES,
CAUTIONS, and WARNINGS.
Modules
Safety
Throughout this manual, any replaceable component, assembly, or part of the sync
pulse generator is referred to generically as a module. In general, a module is an
assembly (like a circuit board), rather than a component (like a resistor or an
integrated circuit). Sometimes a single component is a module. For example, the
chassis of the sync pulse generator is a module.
Symbols and terms related to safety appear in the General Safety Summary and
Service Safety Summary near the beginning of this manual.
Finding Other Information
Other documentation for the sync pulse generator includes:
The SPG600 & SPG300 Sync Pulse Generators User Manual (Tektronix part
Example: Section 10, Mechanical Parts List, lists all field replaceable modules
by part number.
number 071-1340-XX) contains a tutorial to quickly describe how to operate
the sync pulse generator. It also includes an in-depth discussion on how to
more completely use the sync pulse generator features.
(Tektronix part number 071-1341-XX) contains information to enable you to
quickly get an overview of front-panel buttons, rear-panel connectors, and
menus.
xivSPG600 & SPG300 Sync Pulse Generators Service Manual
Introduction
This manual contains information needed to properly service the SPG600 and
SPG300 Sync Pulse Generators, as well as general information critical to safe and
effective servicing.
To prevent personal injury or damage to the sync pulse generator, consider the
following before attempting service:
The procedures in this manual should be performed only by a qualified service
person.
Read the General Safety Summary and the Service Safety Summary , beginning
on page ix.
Read Installation in section 2, Operating Information.
When using this manual for servicing, be sure to follow all warnings, cautions, and
notes.
Performance Check Interval
Strategy for Servicing
Generally, the performance check described in section 4, Performance
Verification, should be done every 12 months. In addition, a performance check is
recommended after module replacement.
If the sync pulse generator does not meet performance criteria, repair is necessary.
Throughout this manual, the term “module” refers to any field-replaceable
component, assembly, or part of the sync pulse generator.
This manual contains all the information needed for periodic maintenance of the
sync pulse generator (examples of such information are procedures for checking
performance).
Further, this manual contains all information for corrective maintenance down to
the module level. T o isolate a failure to a module, use the fault isolation procedures
found in Troubleshooting, part of section 6, Maintenance. To remove and replace
any field module, follow the instructions in Removal and Installation Procedures,
also part of section 6. After isolating a faulty module, replace it with a fully-tested
module obtained from the factory. Section 10, Mechanical Parts List, contains part
number and ordering information for all replaceable modules.
SPG600 & SPG300 Sync Pulse Generators Service Manualxv
Introduction
Tektronix Service Offerings
T ektronix provides service to cover repair under warranty as well as other services
that may provide a cost-effective answer to your service needs.
Whether providing warranty repair service or any of the other services listed
below, Tektronix service technicians are well trained to service the sync pulse
generator. They have access to the latest information on improv ements to the sync
pulse generator as well as the latest new options.
Warranty Repair Service
Self Service
Tektronix warrants this product for one year from date of purchase. The warranty
appears after the title page in this manual. T ektronix technicians pr ovide warranty
service at most Tektronix service locations. The Tektronix product catalog lists all
worldwide service locations or you can visit our web site for service information:
www.tektronix.com.
Tektronix supports repair to the module level by providing Module Exchange.
Module Exchange. This service reduces down-time for repair by allowing you to
exchange most modules for remanufactured ones. Each module comes with a
90-day service warranty.
For More Information. Contact your local T ektronix service center or sales engineer
for more information on any of the repair or adjustment services just described.
xviSPG600 & SPG300 Sync Pulse Generators Service Manual
Specifications
Product Overview
The SPG600 and SPG300 Sync Pulse Generators are designed for high stability
master sync operation. The sync pulse generators provide a wide range of accurate
reference signals including analog video, analog black burst, serial digital video,
serial digital black, and AES/EBU digital audio.
Key Features
The sync pulse generator features include:
High stability internal reference
Genlocks to the following signals:
NTSC/PAL black burst signal
1, 5, 10 MHz, and NTSC/PAL Fsc CW signals
Serial digital video signal outputs
AES/EBU serial digital audio outputs (XLR and BNC)
Overlay a logo or ID text on the color bars or test signal
Up to 16 channels of embedded audio
48 kHz word clock output
GPI (general purpose interface) for error status report and user preset
Ethernet (100 BASE-T) interface remote control
Table 1-1: Output capability of the SPG600 and the SPG300
SPG600 outputs
SignalStandardOption 02Option 03SPG300 outputs
Serial digital
Video2242
BNC audio444None
XLR audio*2222
Analog video4844
48 kHz word clockYesYesYesYes
*The XLR outputs can be set to either serial digital or analog audio ports.
SPG600 & SPG300 Sync Pulse Generators Service Manual1-1
Product Overview
1-2SPG600 & SPG300 Sync Pulse Generators Service Manual
Specifications
General Characteristics
This section is divided into two subsections. General Characteristics lists the
electrical, mechanical, and environmental characteristics of the Sync Pulse
Generator. Certifications and Compliances lists the national and international
standards to which the sync pulse generator complies.
This section lists the electrical, mechanical, and environmental characteristics of
the sync pulse generator.
All listed specifications are guaranteed unless labeled with typical. Typical
specifications are provided for your convenience but are not guaranteed.
Performance Conditions
The electrical characteristics listed on the following pages are valid under the
following conditions:
The sync pulse generator must be in an environment where the temperature,
altitude, humidity, and vibration conditions are within the operating limits
described in Table 1-11 on page 1-11.
The sync pulse generator must have a warm-up period of at least 20 minutes.
The sync pulse generator must have been calibrated and adjusted at an ambient
temperature between +20 °C and +30 °C.
The sync pulse generator must be operating at an ambient temperature between
0 °C to +40 °C, unless otherwise noted.
SPG600 & SPG300 Sync Pulse Generators Service Manual1-3
Specifications
Table 1-1: Reference Inputs
CharacteristicPerformance requirementReference information
Input connector type75 Ω BNC X 2, loopthrough
Return loss> 40 dB to 5 MHz
Genlock inputsNTSC Burst
525 Sync
PA L B ur s t
PAL Sync
CW 1 MHz, 5 MHz, NTSC Burst, PAL Burst,
and 10 MHz
Input requirements
Reference inputs
Amplitude-6 dB to 6 dB
S/N ratio> 40 dB
SCH phase40 °
CW amplitude1 to 2.5 Vp-p
Pull-in range± 5 ppm
Jitter
Burst< 0.5 °
Sync< 1 ns
Genlock time offset range
RangeFull color frame
Resolution< 0.5 degree of subcarrier
Table 1-2: Analog outputs (standard and Option 02)
CharacteristicPerformance requirementReference information
Output connector typeBNC
Number of outputs
Standard4CH1 to CH4
Option 02 (SPG600 only)8CH1 to CH8
Output impedance75 Ω
Return loss> 30 dB to 5 MHz
FormatsNTSC, NTSC No Setup, and PAL
Burst amplitude accuracy± 5%
Burst frequency accuracy± 1 Hz of burst frequency
Burst frequency long term stability< 1 ppm/year
Sync amplitude accuracy± 3%
Blanking level± 50 mV
SCH phase accuracy± 5 °
1-4SPG600 & SPG300 Sync Pulse Generators Service Manual
Specifications
Table 1-2: Analog outputs (standard and Option 02) (cont.)
CharacteristicPerformance requirementReference information
Timing offset
RangeFull color frame
Resolution< 1/27 MHz
Output signals
NTSC and NTSC No Setup
PA L
ID textMaximum 20 charactersBlinking interval: Fast, Slow, or OFF
LogoGray scale, 4 levelBlinking interval: Fast, Slow, or OFF
Table 1-3: Serial digital interface (standard and Option 03)
CharacteristicPerformance requirementReference information
Embedded audioThe settings of the channels 9 to 16 are a
copy of those of the channels 1 to 8.
Number of channels16 (4 groups)
FrequencySilence to 20 kHz31 descrete settings
Level-60 dBFS to 0 dBFS1 dB resolution
PreemphasisNone, CD, and FCC
Click1 s, 2 s, 3 s, 4 s, and Off
Timing offset
RangeFull color frame
Resolution< 1/27 MHz
Output signals
525-270
625-270
ID textMaximum 20 charactersBlinking interval: Fast, Slow, or OFF
LogoGray scale, 4 levelBlinking interval: Fast, Slow, or OFF
SPG600 & SPG300 Sync Pulse Generators Service Manual1-5
Specifications
Table 1-4: AES/EBU audio outputs
CharacteristicPerformance requirementReference information
Output connector type
SPG60075 Ω BNC: 4, XLR: 2
SPG300XLR: 2
Number of outputs
SPG60081+2, 3+4, 5+6, and 7+8
SPG30041+2 and 3+4
Quantized resolution20 or 24 bits (user selectable)
Audio parameters
FrequencySilence to 20 kHz31 discrete settings
Level-60 dBFS to 0 dBFS1 dB resolution
PreemphasisNone, CD, and FCC
Click1 s, 2 s, 3 s, 4 s, and Off
Output level1 V ± 0.1 V
5 V ± 0.3 V
Required receiver termination75 Ω ± 10% for unbalanced to BNC
Terminated 75 Ω, unbalanced to BNC
Terminated 110 Ω, balanced to XLR
110 Ω ± 10% for balanced to XLR
Rise and fall time30 ns to 44 ns
5 ns to 30 ns
Jitter± 8 ns
Timing offset
Range160 ms
Resolution1 µs
Word clock
ConnectorBNC
Frequency48 kHz
LevelCMOS compatible
Impedance75 Ω ± 10%
10% to 90% to BNC
10% to 90% to XLR
1-6SPG600 & SPG300 Sync Pulse Generators Service Manual
Specifications
Table 1-5: Analog audio outputs
CharacteristicPerformance requirementReference information
Output connector typeXLR
Number of channels21+2/RIGHT and 3+4/LEFT
Output impedance12 Ω
Audio parameters
FrequencySilence to 20 kHz31 discrete settings
Level-48 dBu to 12 dBu1 dB resolution
Click1 s, 2 s, 3 s, 4 s, and Off
Table 1-6: GPI (general purpose interface)
CharacteristicPerformance requirementReference information
Output connector typeD-sub, 9 pin
OutputsPin 1: Error output (go to low when an error
Output level< 0.4 VMeasured at 100 mA sink or maximum 4 Ω
InputsPin 3: Input 1
occurs)
Pin 9: GND
Active low input
Pin 4: Input 2
Pin 5: Input 3
Pin 6: GND
Input levelTTL compatibleInputs are pulled up with 10 kΩ
Table 1-7: SNMP error report
CharacteristicPerformance requirementReference information
ProtocolSNMP v1, v2c
AlarmThe same alarm as the GPI will be reported.
StatusSerial number, firmware and hardware
version, hardware configuration/option, etc.
SPG600 & SPG300 Sync Pulse Generators Service Manual1-7
Specifications
Table 1-8: AC power source
CharacteristicPerformance requirementReference information
Rating voltage100 V to 240 V, 50/60 Hz
Voltage range90 V to 250 V, 50/60 Hz
Power consumptionSPG600: 85 VA, 35 W
SPG300: 65 VA, 30 W
Surge current< 20 A: SPG600 and SPG300
Table 1-9: Clearance
CharacteristicPerformance requirementReference information
Side5 cm (2 in)
Rear7.5 cm (3 in)
Table 1-10: Mechanical characteristics
CharacteristicDescription
SPG600
DimensionsSee Figure 1-1.
Height43.6 mm (1.7 in)
Width482.5 mm (19.0 in)
Depth557.5 mm (21.9 in)
Net weightApproximately 6 kg (with rack rail)
SPG300
DimensionsSee Figure 1-2.
Height43.6 mm (1.7 in)
Width206.2 mm (8.1 in)
Depth435.7 mm (17.2 in)
Net weightApproximately 2.5 kg
1-8SPG600 & SPG300 Sync Pulse Generators Service Manual
13.0 mm
(0.5 in)
115.7 mm
320.7 mm
(12.6 in)
(4.6 in)
439.4 mm (17.3 in)
425.4 mm (16.7 in)
Specifications
15.4 mm
(0.6 in)
514.5 mm
(20.3 in)
544.5 mm
(21.4 in)
43.6 mm
(1.7 in)
482.5 mm (19.0 in)
Figure 1-1: SPG600 dimensions
SPG600 & SPG300 Sync Pulse Generators Service Manual1-9
Specifications
13.5 mm
(0.5 in)
15.4 mm
(0.6 in)
422.2 mm
(16.6 in)
206.2 mm (8.1 in)
Figure 1-2: SPG300 dimensions
43.6 mm
(1.7 in)
1-10SPG600 & SPG300 Sync Pulse Generators Service Manual
Table 1-11: Environmental characteristics
CharacteristicDescription
Temperature
Operating0 °C to +40 °C
Nonoperating-20 °C to +60 °C
Relative humidity
Operating20% to 80% relative humidity (% RH) at up to +40 °C, noncondensing.
Nonoperating5% to 90% relative humidity (% RH) at up to +60 °C, noncondensing.
Attitude
OperatingTo 3,000 m (10,061 feet)
NonoperatingTo 12,192 m (40,000 feet)
Vibration
Operating2.65 m/s
Nonoperating22.3 m/s
Shock
Nonperating294 m/s
2
(0.27 Grms), 5 Hz to 500 Hz, 10 minutes per axis, three axes.
2
(2.28 Grms), 5 Hz to 500 Hz, 10 minutes per axis, three axes.
2
(30 G), half-sine, 11 ms duration.
Specifications
SPG600 & SPG300 Sync Pulse Generators Service Manual1-11
Specifications
1-12SPG600 & SPG300 Sync Pulse Generators Service Manual
Operating Information
Installation
This section contains the following topics:
Supplying operating power
Operating environment
Applying and interrupting power
Repackaging instructions
Supplying Operating Power
NOTE. Read all information and heed all warnings in this subsection before
connecting the sync pulse generator to a power source.
WARNING. AC POWER SOURCE AND CONNECTION. The sync pulse generator
operates from a single-phase power source. It has a three-wire power cord and
two-pole, three-terminal grounding type plug. The voltage to ground (earth) from
either pole of the power source must not exceed the maximum rated operating
voltage, 250 volts.
Before making connection to power sour ce, be sur e the sync pulse generator has a
suitable two-pole, three-terminal grounding-type plug.
GROUNDING. This instrument is safety Class 1 equipment (IEC designation). All
accessible conductive parts are directly connected through the grounding
conductor of the power cord to the grounded (earthing) contact of the power plug.
SPG600 & SPG300 Sync Pulse Generators Service Manual2-1
Installation
WARNING. The power input plug must be inserted only in a mating r eceptacle with
a grounding contact where earth ground has been verified by a qualified service
person. Do not defeat the grounding connection. Any interruption of the gr ounding
connection can create an electric shock hazard.
For electric shock protection, the grounding connection must be made before
making connection to the instrument’s input or output terminals.
Power Cord Information
A power cord with the appropriate plug configuration is supplied with each sync
pulse generator. Table 2-1 gives the color-cording of the conductors in the power
cord. If you require a power cord other than the one supplied, refer to Table 2-2,
Power cord identification.
Table 2-1: Power-cord conductor identification
ConductorColorAlternate color
Ungrounded (Line)BrownBlack
Grounded (Neutral)Light BlueWhite
Grounded (Earthing)Green/YellowGreen
2-2SPG600 & SPG300 Sync Pulse Generators Service Manual
Installation
.
Table 2-2: Power cord identification
Plug configurationNormal usageOption number
North America
115 V
Standard (A0)
Universal Euro
220 V
United Kingdom
240 V
Australia
240 V
North America
250 V
Switzerland
240V
Japan
100 V
A1
A2
A3
A4
A5
A6
Operating Voltage
China
240 V
No power code supplied.A99
The sync pulse generator operates with any line voltage from 90-250 VAC
A10
RMS
with line frequency 50 or 60 Hz. Before plugging the cord into the outlet, be sure
that the line voltage is in the proper range.
SPG600 & SPG300 Sync Pulse Generators Service Manual2-3
Installation
Operating Environment
The following environment requirements are provided to ensure proper operation
and long instrument life.
Operating Temperature
Ventilation Requirements
Operate the sync pulse generator where the ambient air temperature is from 0 ºC to
+40 ºC. Store the sync pulse generator in ambient temperatures from -20 ºC to
+60 ºC. After storage at temperatur es outside the operating limits, allow the chassis
to stabilize at a safe operating temperature before applying power.
Leave space for cooling by ensuring standard side clearance for rack mounting or
2 inches (5.1 cm) of side clearance for countertop use. Also, ensure sufficient rear
clearance (approximately 3 inches) so that cables are not damaged by sharp bends.
Applying and Interrupting Power
Consider the following information when you power on or power off the sync pulse
generator, or when external power loss occurs.
Connect the Power Cable
Connect the power cable to the instrument first, and then connect it to the AC
power source. Note that connecting the power cable causes the instrument to power
on. Refer to Table 2-2 for power cord identification.
CAUTION. The instrument does not have a power switch. When you connect the
power cable to AC line connector, the instrument powers on.
After connecting the power, make sure that the fan inside the instrument is
working. If the fan is not working, turn off the power by disconnecting the power
cable from the AC power source and contact your local Tektronix Field Office or
representative.
Power Off
2-4SPG600 & SPG300 Sync Pulse Generators Service Manual
To power off the sync pulse generator, disconnect the power cable from the AC
power source.
Repackaging Instructions
When you ship this instrument, use the original packaging material if possible. If
the original packaging is unfit for use or is not available, repackage the instrument
using the following procedure:
1. Obtain a corrugated cardboard shipping carton having inside dimensions at
2. If the instrument is being shipped to a Tektronix Service Center for repair or
Installation
least six inches greater than the instrument dimensions and having a carton test
strength of at least 125 kg (275 pounds).
calibration, attach a tag to the instrument showing the following information:
The owner of the instrument (with address).
The name of a person at your company who may be contacted if additional
information is needed.
The complete instrum e nt type and serial number.
A description of the service required.
Installed Options
3. Wrap the instrument with polyethylene sheeting or equivalent to protect the
outside finish and prevent entry of packing materials into the instrument.
4. Cushion the instrument on all sides by tightly packing dunnage or urethane
foam between the carton and the instrument, allowing for three inches
(7.62 cm) of padding on each side (including top and bottom).
5. Seal the carton with shipping tape or with an industrial stapler.
6. Mark the carton with the address of the Tektronix Service Center and your
return address in one or more prominent locations.
Y o ur instrument may be equipped with one or more instrumen t options. Except for
the line-cord options described by Table 2-2 on page 2-3, all options are listed and
described in Section 7, Options. For further information and prices of instrument
options, see your Tektronix Products catalog or contact your Tektronix Field
Office.
SPG600 & SPG300 Sync Pulse Generators Service Manual2-5
Installation
2-6SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Video Menu
This section describes all of the available sync pulse generator menus and
submenus. The following menus are available from the front-panel menu buttons:
Video menu
Audio menu
Genlock menu
System menu
Pressing the VIDEO button displays the V ideo menu. This menu lets you set output
signals, timing of the output signals, overlay, and SDI parameters. Use the up (
or down (
menu diagram. Use the left (
submenus in each Video menu.
T) arrow button to scroll through the menu. Figure 2-1 shows the Video
W) or right (X) arrow button to select functions or
S)
SPG600 & SPG300 Sync Pulse Generators Service Manual2-7
Menus
Press the VIDEO button
ANALOG SYNC (STD)
Black Burst ↵
ANALOG SYNC (OPT)
Black Burst ↵
TEST SIGNAL (ANALOG)
Standard
TEST SIGNAL (SDI)
Standard
TIMING (ANALOG)
CH-1
TIMING (SDI)
SDI-1
Black Burst
BB with Fld REF
Black Burst
BB with Fld REF
ENTER
Standard
1
Option
CANCEL
ENTER
Standard
2
Option
CANCEL
CH-1CH-5
CH-2CH-6
CH-3CH-7
CH-4CH-8
SDI-1 SDI-3
SDI-2 SDI-4
2
2
SPG600 Option 02 only
To Test signal (analog) submenu
(page 2-9)
To Test signal (SDI) submenu
(page 2-10)
1
ENTER
1
1
1
CANCEL
To Timing (analog) submenu
(page 2-11)
ENTER
To Timing (SDI) submenu
(page 2-11)
CANCEL
ENTER
OVERLAY
Analog (STD)
Analog (STD) Analog (OPT)
SDI (STD)SDI (OPT)
2
1
To Overlay submenu
(page 2-12)
CANCEL
ENTER
PA R A M E T E R
SDI (STD)
SDI (STD)
SDI (OPT)
2
To SDI Parameters submenu
(page 2-15)
CANCEL
1 SPG600 Option 02 only
2 SPG600 Option 03 only
Figure 2-1: Video menu diagram
2-8SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Test Signal (Analog)
Submenu
This menu allows you to select a test signal for analog output(s). Use the up (S) or
down (
signal (analog) submenu diagram. Use the left (
T) arrow button to scroll through the menu. Figure 2-2 shows the Test
W) or right (X) arrow button to
select a signal.
Select TEST SIGNAL (ANALOG) in the Video menu
COLOR BAR
100% Color Bars
FLAT FIELD
0% Flat Field
LINEARITY
10 Step
Select a signal
Select a signal
Select a signal
MONITOR
100% Red Field
MULTIBURST
100% Multiburst
SWEEP
100% Sweep
PULSE BAR
2T Pulse & Bar
OTHE R
FCC Composite
Select a signal
Select a signal
Select a signal
Select a signal
Select a signal
Figure 2-2: Test signal (analog) submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-9
Menus
Test Signal (SDI) Submenu
Select TEST SIGNAL (SDI) in the Video menu
COLOR BAR
SMPTE Color Bars
FLAT FIELD
0 % Flat Field
LINEARITY
10 Step
This menu allows you to select a serial digital test signal for the SDI 2 output(s).
Use the up (
shows the T est signal (SDI) submenu diagram. Use the left (
S) or down (T) arrow button to scroll through the menu. Figure 2-3
W) or right (X) arrow
button to select a signal.
Select a signal
Select a signal
Select a signal
SWEEP
100% Sweep
SDI
Checkfield
TIMING
2.5 MHz Bowtie
Select a signal
Select a signal
Select a signal
MONITOR
2 Pedestal & Pluge
MULTI BURST
60% Y Multiburst
Figure 2-3: Test signal (SDI) submenu diagram
Select a signal
Select a signal
PULSE BAR
2T Pulse & Bar
OTHER
Chroma Freq. Resp.
REC 801
100% Color Bars
Select a signal
Select a signal
Select a signal
2-10SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Timing (Analog) Submenu
This menu allows you to adjust the selected analog output timing offset relative to
the genlock signal or the internal reference signal. Use the up (
S) or down (T)
arrow button to scroll through the menu. Figure 2-4 shows the Timing (analog)
submenu diagram.
Select TIMING (ANALOG) in the VIDEO menu
TIMING : VERTICAL
0 Line (s)
TIMING : HORIZONTAL
0.0000 µsec
TIMING : FINE
0.0 nsec
Set the vertical timing in 1 line steps
Set the horizontal timing in 1 clock steps
Set the horizontal timing in 0.1 ns steps
Option 01 only
Timing (SDI) Submenu
Figure 2-4: Timing (analog) submenu diagram
This menu allows you to adjust the timing offset of the selected serial digital output
relative to the genlock signal or the internal reference signal. Use the up (
down (
T) arrow button to scroll through the menu. Figure 2-5 shows the Timing
S) or
(SDI) submenu diagram.
Select TIMING (SDI) in the Video menu
TIMING : VERTICAL
0 Line (s)
TIMING : HORIZONTAL
0.00
µsec
Set the vertical timing in 1 line steps
Set the horizontal timing in 1 clock steps
Figure 2-5: Timing (SDI) submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-11
Menus
Overlay Submenu
This menu allows you to select an item (logo or ID text) that is overlaid on the
output test signal. Use the up (
S) or down (T) arrow button to scroll through the
menu. Figure 2-6 shows the Overlay submenu diagram.
NOTE. The Overlay submenu contents are common for both analog and serial
digital signals except for the menu title on the first line (ANALOG or SDI).
Select OVERLAY in the Video menu
ENTER
: ANALOG (STD)
Logo
: ANALOG (STD)
Blink OFF ↵
Logo
ID Text
CANCEL
OFF
Fast
Low
To Logo submenu (page 2-13)
To ID text submenu (page 2-14)
Figure 2-6: Overlay submenu diagram
2-12SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Logo Submenu
This menu allows you to overlay and position a logo graphic on an output test
signal. Use the up (
S) or down (T) arrow button to scroll through the menu.
Figure 2-7 shows the Logo submenu diagram.
Select Logo in the Overlay submenu
: LOGO
Logo: OFF ↵
: LOGO
X : 0.0 % APH
: LOGO
Y : 0.0 % APH
: LOGO : SAVE
Press ENTER to sav
↵
ENTER
Select OFF or a logo
Set the horizontal position
Set the vertical position
Save the display position for the logo
Figure 2-7: Logo submenu diagram
You can create a logo file using the Logo Generator application. Refer to the
SPG600 & SPG300 Sync Pulse Generators User Manual included on the product
CD-ROM for detailed information for using Logo Generator.
SPG600 & SPG300 Sync Pulse Generators Service Manual2-13
Menus
ID Text Submenu
This menu allows you to edit and position a text string that is overlaid on the output
test signal. Use the up (
S) or down (T) arrow button to scroll through the menu.
Figure 2-8 shows the ID text submenu diagram.
Select ID Text in the Overlay submenu
: ID TEXT
Statu s: Dis abl e ↵
: ID TEXT
X : 10.0 %APH
: ID TEXT
Y : 80.0 %APH
: ID TEXT : EDIT
ENTER
Disable
Enable
Set the horizontal position
Set the vertical position
Edit text
: ID TEXT : SAVE
Press ENTER to sav
↵
Figure 2-8: ID text submenu diagram
ENTER
Save the text to the signal file
2-14SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
SDI Parameters Submenu
This menu allows you to select which component(s) of the serial digital signal is
(are) available, the serial digital signal resolution, and the insertion of the EDH
(Error Detection and Handling) bits. Use the up (
S) or down (T) arrow button to
scroll through the menu. Figure 2-9 shows the SDI parameters submenu diagram .
Select PARAMETER in the VIDEO menu
Y,Cb,CrCb,Cr
: SDI (STD) COMPONENT
Y, Cb, Cr ↵
: SDI (STD) PRECISION
10-bit ↵
: SDI (STD) EDH
Enable ↵
YY,Cb
CbY,Cr
Cr
10-bit
8-bit
Disable
Enable
Figure 2-9: SDI parameters submenu
SPG600 & SPG300 Sync Pulse Generators Service Manual2-15
Menus
Audio Menu
Pressing the AUDIO button displays the Audio menu. This menu lets you set the
parameters of the AES/EBU audio and embedded audio in the serial digital signal.
Use the up (
shows the Audio menu.
Press the AUDIO button
S) or down (T) arrow button to scroll through the menu. Figure 2-10
AES/EBU
EMBEDDED (STD/BLK)
Group 1
EMBEDDED (STD/TEST)
Group 1
EMBEDDED (OPT/BLK)
Group 1
EMBEDDED (OPT/TEST)
Group 1
ANALOG
Left
ENTER
CANCEL
To AES/EBU submenu
(page 2-17
Group 1 Group 3
Group 2 Group 4
Group 1 Group 3
Group 2 Group 4
Group 1 Group 3
Group 2 Group 4
Group 1 Group 3
Group 2 Group 4
Left
Right
Both
ENTER
CANCEL
ENTER
To Embedded submenu
(page 2-18)
CANCEL
ENTER
To Embedded submenu
(page 2-18)
CANCEL
ENTER
To Embedded submenu
(page 2-18)
CANCEL
ENTER
To Embedded submenu
(page 2-18)
CANCEL
SPG600 Option 03 only
To Audio channel submenu
(page 2-19)
Figure 2-10: Audio menu diagram
NOTE. The ANALOG menu item is only available when you select Analog Audio in
the CONFIGRATION: XLR OUTPUT menu.
2-16SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
AES/EBU Submenu
Select AES/EBU in the Audio menu
AES/EBU
Channel : 1
AES/EBU
Emp has is: NO ↵
AES/EBU
Resolution: 20 bi ts ↵
This menu allows you to select an audio channel, the state of the audio emphasis
bits, the resolution of the serial digital audio signal data, and the audio timing. Use
the up (
S) or down (T) arrow button to scroll through the menu. Figure 2-11
SPG600 & SPG300 Sync Pulse Generators Service Manual2-17
Menus
Embedded Submenu
Select EMBEDDED in the Audio menu
STD/BLK : GRP-1
n Status: Disable ↵
STD/BLK : GRP-1
Channel: 1
This menu allows you to enable or disable the generation of embedded audio, select
an audio channel, set the state of the audio emphasis bits, and set the resolution of
the serial digital audio signal data. Use the up (
S) or down (T) arrow button to
scroll through the menu. Figure 2-12 shows the Embedded submenu diagram.
NOTE. The Embedded submenu contents are common for the serial digital black
signals and the serial digital test signals except for the menu title on the first line.
Status: Disable
Status: Enable
Channel: 1
Channel: 2
Channel: 3
Channel: 4
Channel: ALL
ENTER
To Audio Channel submenu
(page 2-19)
CANCEL
STD/BLK : GRP-1
Emphasis: NO ↵
STD/BLK : GRP-1)
Sync: Frame ↵
STD/BLK : GRP-1
Resolution: 20 bits ↵
Figure 2-12: Embedded submenu diagram
Emphasis: NO
Emphasis: CD
Emphasis: CCITT
Sync: Frame
Sync: w/o Frame No.
Sync: Async
Resolution: 20 bits
Resolution: 24 bits
2-18SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Audio Channel Submenu
This menu allows you to set the frequency, amplitude, and audio click of the
selected audio channel. Use the up (
S) or down (T) arrow button to scroll through
the menu items. Figure 2-13 shows the Audio channel submenu diagram.
NOTE. The Audio channel submenu contents are common for AES/EBU audio,
Embedded audio, and Analog audio except for the menu title in the first line and
some parameter settings.
Select a channel in the AES/EBU or Embedded
submenu, or Audio: ANALOG menu item
-60 dBFS to 0 dBFS (for AES/EBU and embedded audio)
-48 dBu to 12 dBu (for analog audio)
OFF
1 Sec
2 Sec
3 Sec
4 Sec
* Not available for analog audio
Figure 2-13: Audio channel submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-19
Menus
Genlock Menu
Pressing the GENLOCK button displays the Genlock menu. This menu lets you
select the genlock source, set the timing offset, and set the instrument actions when
lock is lost. Use the up (
S) or down (T) arrow button to scroll through the menu.
2-20SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Genlock Timing Submenu
This menu allows you to adjust the timing offset of the input signal relative to the
internal reference signal (frame reset signal). Use the up (
S) or down (T) arrow
button to scroll through the menu. Figure 2-15 shows the Genlock timing submenu
diagram.
Select GENLOCK TIMING in the Genlock menu
TIMING : VERTICAL
0 Line (s)
TIMING : HORIZONTAL
µs
0.0000
TIMING : FINE
0.0 nsec
Set the vertical timing in 1 line steps
Set the horizontal timing in 1 clock steps
Set the horizontal timing in 0.1 ns steps
Figure 2-15: Genlock timing submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-21
Menus
System Menu
Pressing the SYSTEM button displays the System menu. This menu lets you set the
system-related settings such as network parameters and output configuration. Use
the up (
shows the System menu diagram.
Press the SYSTEM button
S) or down (T) arrow button to scroll through the menu. Figure 2-16
PRESET
LCD CONTRAST
Low << 17 >> HIGH
FRONT PANEL DISABLE
Time Out: OFF ↵
NETWORK
Information
GPI
SYSTEM PARAMETER
Information
ENTER
CANCEL
ENTER
CANCEL
To Preset submenu
(page 2-23)
Adjust the display contrast
Off10 Minute
Immediately30 Minute
1 Minute1 Hour
ENTER
Information
Setup
CANCEL
To GPI submenu
(page 2-26)
ENTER
Information
Setup
CANCEL
To Network information submenu (page 2-24)
To Network setup submenu (page 2-25)
To System information submenu (page 2-27)
To System setup submenu (page 2-27)
ENTER
CONFIGURATION
CANCEL
To Configuration submenu
(page 2-28)
Figure 2-16: System menu diagram
2-22SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Preset Submenu
This menu allows you to store and recall instrument configuration settings. Use the
up (
S) or down (T) arrow button to scroll through the menu items. Figure 2-17
shows the Preset submenu diagram.
Select PRESET in the SYSTEM menu
PRESET : RECALL
Power On Default
PRESET : SAVE
Power On Default
PRESET : RENAME
PRESET 1
PRESE T : DELETE
PRESET 1
↵
↵
Select a preset to recall
Select a preset number to save the current
instrument settings
ENTER
Select a preset to
rename
CANCEL
Select a preset to delete
Edit the preset name
Figure 2-17: Preset submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-23
Menus
Network Information
Submenu
This menu allows you to display all of the current network parameters. Use the up
(
S) or down (T) arrow button to scroll through the menu. Figure 2-18 shows
Network information submenu diagram.
Select Information in the NETWORK menu item
: IP ADDRESS
1 2 3. 1 2 3 .1 2 3 . 12 3
: SUBNET MASK
255.254.253.252
: BROADCAST ADDR
111.255.255.255
: GATEWAY ADDR
000.000.000.000
: MAC ADDRESS
00-0-95-00-01-AE
Figure 2-18: Network information submenu diagram
2-24SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
Network Setup Submenu
Select Setup in the NETWORK menu item
: DHCP
Disable ↵
: IP ADDRESS
000.000.000.000
: SUBNET MASK
000.000.000.000
This menu allows you to set the sync pulse generator network parameters when
connecting to a 100BASE-T Ethernet. Use the up (
S) or down (T) arrow button
to scroll through the menu items. Figure 2-19 shows the Network setup submen u
diagram.
ENTER
ENTER
Disable
Enable
Set the address
Set the address
: SNMP TRAPS
Disable ↵
: SNMP TRAP DEST-1
000.000.000.000
: SNMP TRAP DEST-2
000.000.000.000
ENTER
ENTER
Disable
Enable
Set the address
Set the address
: BRDCAST ADDR
000.000.000.000
: GATEWAY ADDR
000.000.000.000
: WEB INTERFACE
Disable ↵
: SNMP MODE
Disable ↵
ENTER
ENTER
Figure 2-19: Network setup submenu diagram
Set the address
Set the address
Disable
Enable
Disable
Enable
: SNMP TRAP DEST-3
000.000.000.000
: SNMP TRAP DEST-4
000.000.000.000
: SNMP SET COMMUNITY
private
: SNMP GET COMMUNITY
public
ENTER
Set the address
ENTER
Set the address
ENTER
Set the string
ENTER
Set the string
SPG600 & SPG300 Sync Pulse Generators Service Manual2-25
Menus
GPI Submenu
This menu allows you to enable or disable the alarm signal output, reset alarm
signal output, and display the alarm status. Use the up (
S) or down (T) arrow
button to scroll through the menu. Figure 2-20 shows the GPI submenu diagram.
Select GPI in the System menu
: ALARM STATUS
No Alarm
: ALARM RESET
Press ENTER ↵
: GPI ALARM OUTPUT
Disable ↵
Disable
Enable
Figure 2-20: GPI submenu diagram
2-26SPG600 & SPG300 Sync Pulse Generators Service Manual
Menus
System Information
Submenu
This menu allows you to display the system information. Use the up (S) or down
(
T) arrow button to scroll through the menu. Figure 2-21 shows the System
information submenu diagram.
Select Information in the SYSTEM PARAMETER menu item
: FPGA VERSION (STD)
A:1.3 D:1.6
: FPGA VERSION (OPT)
A:1.3 D:1.5
: F/W VERSION
1.0.3
: S/N
J310000
System Setup Submenu
: OPTION KEY
ABCDEFGHIJKLMNOPQRST
Figure 2-21: System information submenu diagram
This menu allows you to enter the option key that enables the fine timing
adjustment feature (Option 01). Figure 2-22 shows the System setup submenu
diagram.
Select Setup in the SYSTEM PARAMETER menu item
: SETUP : OPTION KEY
ABCDEFGHIJKLMNOPQRST
ENTER
Enter the option key
Figure 2-22: System setup submenu diagram
SPG600 & SPG300 Sync Pulse Generators Service Manual2-27
Menus
Configuration Submenu
This menu allows you to select the video standard for the output signals and
configure the output connectors. Use the up (
S) or down (T) arrow button to scroll
through the menu. Figure 2-23 shows the Configuration submenu diagram.
Select CONFIGURATION in the System menu
: VIDEO STANDARD
NTS C ↵
: ANALOG OUTPUT (STD)
BB : 1,2 ,3 TEST : 4 ↵
: ANALOG OUTPUT (OPT)
BB : 5,6 ,7 TEST : 8 ↵
: SDI OUTPUT (STD)
BLACK : 1 TES T: 2 ↵
NTSC
NTSC No Setup
PA L
BB : 1,2,3 TEST : 4
BB : 1,2 TEST : 3,4
BB : 1 TEST : 2,3,4
BB : TEST : 1,2,3,4
BB : 5,6,7 TEST : 8
BB : 5,6 TEST : 7,8
BB : 5 TEST : 6,7,8
BB : TEST : 5,6,7,8
BLACK : 1 TEST : 2
BLACK : TEST : 1,2
SPG600 Option 02 only
: SDI OUTPUT (OPT)
BLACK : 3 TES T: 4 ↵
: XLR OUTPUT
AES/EBU Audio ↵
Figure 2-23: Configuration submenu diagram
BLACK : 3 TEST : 4
BLACK : TEST : 3,4
SPG600 Option 03 only
AES/EBU Audio
Analog Audio
2-28SPG600 & SPG300 Sync Pulse Generators Service Manual
Theory of Operation
Theory of Operation
This section describes the basic operation of the major circuit blocks or modules in
the sync pulse generator. The Diagram section, beginning on page 9-1, includes
block diagrams and interconnect diagrams.
A10 Main Board (SPG600) and A50 Main Board (SPG300)
The A10/A50 Main board consists of the following blocks:
Master Clock Oscillator
Audio Clock
Video Clock
Frame Reset
D/A Converter
CPU
Flash Memory and SDRAM
Parallel to Serial Converter
This block generates a master clock signal. It is generated from the 13.5 MHz
OCXO with high accuracy. The frequency is controlled by a 16-bit D/A converter .
This block generates a 12.7 MHz clock for AES/EBU audio. The clock is phase
locked to 13.5 MHz master oscillator.
This block generates a 27 MHz clock for video signals. The clock is phase locked
to the 13.5 MHz master clock.
This block generates a 15/1.001 Hz frame reset signal for the NTSC standard and
a 6.25 Hz frame reset signal for the PAL standa rd.
The 16-bit D/A converter controls the master clock oscillator frequency.
The CPU manages all functions in the sync pulse generator.
This block consists of an 8 MB flash memory and a 16 MB SDRA M. The flash
memory holds the data for system boot (1 MB) and the program code (7 MB).
This block converts the CPU parallel bus to the original serial bus.
GPI Interface
Network Interface
DC/DC Converter
SPG600 & SPG300 Sync Pulse Generators Service Manual3-1
This block controls the general purpose interface. The interface is used to recall a
preset and output an alarm signal.
This block controls the Ethernet interface for Web and SNMP application. The
sync pulse generator has a 100 BASE-T connector on the rear panel.
This block converts the +5 V power, supplied by the Power Supply Module, to
-5 V, 3.3 V, 8 V, and 12 V.
Theory of Operation
Analog Genlock
Analog Generator (A10
Main Board Only)
The analog genlock consists of the following blocks:
Genlock Controller. This block controls the A/D converter, memory, and sync
separator to obtain correct digital data.
A/D Converter. The A/D converter digitizes the analog input signal to 10-bits digital
data for genlock operation. This data is read by the CPU and used to control the
master oscillator frequency.
Sync Separator. The sync separator separates the sync signal such as H sync or V
sync from the input signal.
Amp & Restorer. This block consists of amplifiers to adjust the amplitude of the
signal from the REF input and restorer to recover the DC component of the signal.
The analog generator consists of the following blocks:
Sync Memory. The sync memory is a part of the FPGA and keeps the data of the
sync pulses.
Line Memory. The line memory is a part of the FPGA and contains the active part
of the line data of the test signal. It can store up to four line data.
SDI Generator
Frame Memory. The frame memory contains a series of pointers that control the
order of the video lines stored in the Line Memory, which are used to produce
digital signals.
Overlay Memory. The overlay memory ge nerates timings to multiplex the line
memory data and the overlay data used for an ID text and logo overlay.
Delay Counter. The delay counter in the FPGA sets the timing of each channel. The
optional fine timing feature is achieved by digital filter technique.
Signal Generator. This block builds complete test signal sequence with sync and
line data according to the frame memory.
D/A Converter and Amplifier. This block consists of a D/A converter, an amplifier,
and a filter. It converts the digital data from the Signal Generator to an analog
signal and reconstructs the signal for output.
The SDI generator consists of the following blocks:
Sync Memory. The sync memory is a part of the FPGA and stores the EAV and
SAV data.
3-2SPG600 & SPG300 Sync Pulse Generators Service Manual
Theory of Operation
Line Memory. The line memory is a part of the FPGA and contains the active part
of the line data of the test signal. It can store up to four line data.
Frame Memory. The frame memory contains a series of pointers that control the
order of the video lines stored in the Line Memory, which are used to produce
digital signals.
Overlay Memory. The overlay memory generates timing to multiplex the line
memory data and the overlay data used for an ID text and logo overlay.
Delay Counter. The delay counter in the FPGA sets the timing of each channel.
Signal Generator. This block builds complete test signal sequence with black and
line data according to the frame memory.
Embedded Packet Generator. This block generates 16-channel embedded audio
data.
Serializer. This block converts a 10-bit parall el data to SDI signal.
Audio Generator
A20 Front-Panel Board
The audio generator consists of the following blocks:
Audio Memory. The audio memory contains the data for both analog and AES/EBU
packet generators.
Analog Waveform Generator. The generator obtains the data from the audio
memory and builds the analog waveform.
D/A Converter and Amplifier. This block contains two set of D/A converters and
amplifiers for generating left and right signals. The D/A converter receives the data
from the analog waveform generator and converts them to an analog signal. The
amplifier amplifies the signal to the desired level.
AES/EBU Packet Generator and Word Clock. The packet generator creates the
AES/EBU packets based on the memory contents. W ord clock generates a 48 kHz
clock signal.
Drivers. This block contains four driver circuits for AES/EBU and a driver for the
word clock. The drivers set the output amplitude and impedance.
The A20 Front-Panel board consists of the rubber contact switches and three LEDs.
SPG600 & SPG300 Sync Pulse Generators Service Manual3-3
Theory of Operation
Power Supply Module
The power supply module derives the +5 V power supply voltages from the AC
line and supplies them to the A10 Main board.
A30 Analog Board (SPG600 Option 02) and A50 Analog Board (SPG300)
The A30/A50 Analog board consists of the same blocks as the Analog Generator.
Refer to Analog Generator on page 3-2.
A40 SDI Board (SPG600 Option 03)
The A40 SDI board consists of the same blocks as the SDI generator . Refer to SDI
Generator on page 3-2.
3-4SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
Performance Verification
This section provides procedures to verify the performance and functionality of the
sync pulse generator.
Preparation for Performance Verification
Do the following before starting the performance verification procedures:
Power On Default Settings
Warm up
Before you begin the performance verification procedures, make sure that the
required instrument settings are saved in the Power On Default preset.
If the instrument settings are saved in the Power On Default preset, you can recall
the settings after the performance verification procedures are completed by turning
off and on the power.
The sync pulse generator and test equipment must have had a warm-up period of
at least 20 minutes.
Equipment Required
Table 4-1 lists the equipment required for this procedure.
Table 4-1: Equipment required for performance verification
ItemNo.Minimum requirementRecommended equipment
Frequency counter1Frequency range: 0.1 Hz to 1250 MHz
Precision: 7 digits or higher
Oscilloscope1Bandwidth: 200 MHz or higherTektronix TDS3032B
Video measurement set1Tektronix VM700T Option 01/11/1S/40
Waveform vector monitor1Tektronix 1765
Digital audio monitor1Tektronix 764
TV signal generator1Tektronix TG700 with AGL7 Analog Genlock
75 Ω BNC cable3Length: 42 inchesTektronix part no. 012-0074-00
75 Ω feed-through terminator 1Tektronix part no. 011-0103-02
75 Ω coaxial terminator2Tektronix part no. 011-0102-01
XLR cable1CANARE DAC01-SA
Female XLR to male
mini-XLR adapter cable
2Standard accessories of the VM700T
ANRITSU MF 1603A
module
Option 40
SPG600 & SPG300 Sync Pulse Generators Service Manual4-1
Performance Verification
Calibration Data Report
Photocopy this form and use it to record the performance test results.
Table 4-2: SPG600 and SPG300 calibration data report
Serial Number: Cal Data: Temperature: Humidity:
StepFunction TestedMinimumCal DataMaximum
1.Subcarrier Frequency3.5795444 MHz3.5795464 MHz
2.Blanking Level
CH 1-50 mVmV+50 mV
CH 2-50 mVmV+50 mV
CH 3-50 mVmV+50 mV
CH 4-50 mVmV+50 mV
3.Burst Amplitude
CH 1271.4 mVmV286.4 mV
CH 2271.4 mVmV286.4 mV
CH 3271.4 mVmV286.4 mV
CH 4271.4 mVmV286.4 mV
4.Sync Amplitude
CH 1277.1 mVmV294.3 mV
CH 2277.1 mVmV294.3 mV
CH 3277.1 mVmV294.3 mV
CH 4277.1 mVmV294.3 mV
5.48 kHz Clock Output Level (CMOS compatible)
High2.1 VOK
LowOK0.8 V
6.AES/EBU Serial Digital Audio Output Level (SPG600 Only)
1+2900 mVmV1100 mV
3+4900 mVmV1100 mV
5+6900 mVmV1100 mV
7+8900 mVmV1100 mV
SPG600 Option 02
7.Blanking Level
CH 5-50 mVmV+50 mV
CH 6-50 mVmV+50 mV
CH 7-50 mVmV+50 mV
CH 8-50 mVmV+50 mV
8.Burst Amplitude
CH 5271.4 mVmV286.4 mV
CH 6271.4 mVmV286.4 mV
CH 7271.4 mVmV286.4 mV
CH 8271.4 mVmV286.4 mV
4-2SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
Table 4-2: SPG600 and SPG300 calibration data report (cont.)
Serial Number: Cal Data: Temperature: Humidity:
StepFunction TestedMinimumCal DataMaximum
9.Sync Amplitude
CH 5277.1 mVmV294.3 mV
CH 6277.1 mVmV294.3 mV
CH 7277.1 mVmV294.3 mV
CH 8277.1 mVmV294.3 mV
10.Serial Output Amplitude
SDI 1720 mVmV880 mV
SDI 2720 mVmV880 mV
11.Serial Output Rise Time (20% to 80% amplitude points)
SDI 10.4 nsns1.50 ns
SDI 20.4 nsns1.50 ns
12.Serial Output Fall Time (20% to 80% amplitude points)
SDI 10.4 nsns1.50 ns
SDI 20.4 nsns1.50 ns
SPG600 Option 03
13.Serial Output Amplitude
SDI 5720 mVmV880 mV
SDI 6720 mVmV880 mV
14.Serial Output Rise Time (20% to 80% amplitude points)
SDI 50.4 nsns1.50 ns
SDI 60.4 nsns1.50 ns
15.Serial Output Fall Time (20% to 80% amplitude points)
SDI 50.4 nsns1.50 ns
SDI 60.4 nsns1.50 ns
SPG600 & SPG300 Sync Pulse Generators Service Manual4-3
Performance Verification
Performance Verification Procedures
NOTE. The performance verification procedures ar e common for both the SPG600
and SPG300 except for optional output connectors.
You must performe the Preparation for Performance Verification (on page 4-1)
before proceeding.
Subcarrier Frequency
SPG600 rear panel
This test verifies the subcarrier frequency accuracy of black burst signals. The
following equipment is required for the test:
7. Press the GAIN menu button on the waveform vector monitor front panel to
display the Gain menu.
8. In the Gain menu, select X5 and VARIABLE.
9. Align the PAL burst vector with the compass rose of the display.
10. Recall the Factory Default preset as follows:
a. Press the SYSTEM button to display System menu.
b. Press the ENTER button to display the Preset submenu.
c.Press the left (
W) or right (X) arrow button to select Factory Default.
d. Press the ENTER button to recall the factory default settings.
4-6SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
11. Set the output signal format and genlock source of the sync pulse generator as
follows:
a. Press the CANCEL button to return the SYSTEM menu.
b. Press the up (
S) or down (T) arrow button to select CONFIGURATION.
c.Press the ENTER button to display the Configuration submenu.
d. Press the left (
W) or right (X) arrow button to select PAL.
e.Press the ENTER button.
f.Press the GENLOCK button to display the Genlock menu.
g. Press the up (
S) or down (T) arrow button to select GENLOCK
SOURCE.
h. Press the left (
W) or right (X) arrow button to select PAL Burst.
i.Press the ENTER button.
12. Verify that the vector display is locked and that the EXT.REF LED on the
sync pulse generator lights.
13. Press the left (
W) or right (X) arrow button to select NTSC Burst.
14. Press the ENTER button.
15. Verify that the vector display is unlocked.
16. Press the left (
W) or right (X) arrow button to select 625 SYNC.
17. Press the ENTER button.
18. Verify that the vector display is locked.
19. Change the signal format setting of the TV signal generator (AGL7 module) to
NTSC.
20. Change the sync pulse generator settings as follows:
a. Press the SYSTEM button to display the System menu.
b. Press the up (
S) or down (T) arrow button to select CONFIGURATION.
c.Press the ENTER button to display the Configuration submenu.
d. Press the left (
W) or right (X) arrow button to select NTSC.
e.Press the ENTER button.
f.Press the GENLOCK button to display the Genlock menu.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-7
Performance Verification
g. Press the up (
S) or down (T) arrow button to select GENLOCK
SOURCE.
h. Press the left (
W) or right (X) arrow button to select NTSC Burst.
i.Press the ENTER button.
21. Verify that the vector display (CH-B) is locked and that the EXT.REF LED
on the sync pulse generator lights.
22. Press the left (
W) or right (X) arrow button to select PAL Burst.
23. Press the ENTER button.
24. Verify that the vector display is unlocked.
25. Press the left (
W) or right (X) arrow button to select 525 SYNC.
26. Press the ENTER button.
27. Verify that the vector display is locked.
28. Output NTSC subcarrier signal from the TV signal generator (AGL7 module)
as follows:
a. Press and hold the MODULE, FORMAT, and FRONT PANEL
ENABLE buttons on the TV signal generator (TG700) simultaneously until the message TG700 TV Signal Generator Platform Initializing
System appears in the display , then release the MODULE and FORMAT
buttons to re-start the instrument in Factory mode.
b. Wait until TG700 Preset appears.
c.Press the MODULE button to select AGL7.
d. Press the up (
e.Press the left (
S) or down (T) arrow button to select SELECT OUTPUT .
W) or right (X) arrow button to select BLACK 1, and then
press the ENTER button to display the OUTPUT menu.
f.Press the left (
W) or right (X) arrow button to select CAL, and then press
the ENTER button to display the SIGNAL submenu.
g. Press the left (
W) or right (X) arrow button to select NTSC Subcarrier
(1Vp-p), and then press the ENTER button.
29. Press the left (
W) or right (X) arrow button to select CW 3.58 MHz.
30. Press the ENTER button.
31. Verify that the vector display is locked and that the EXT.REF LED on the
sync pulse generator lights.
4-8SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
Black Burst Output
This test verifies the blanking level, burst amplitude, and sync amplitude of black
burst signals. The following equipment is required for the test:
Video meas urement set
75 Ω feed-through termination
75 Ω coaxial terminator
75 Ω BNC cable
Perform the following procedure to verify the blanking level, burst amplitude, and
sync amplitude of black burst signals.
1. Use the 75
Ω BNC cable to connect the CH 1 connector on the sync pulse
generator to the CHAN A connector on the video measurement set.
See Figure 4-3.
2. Use the 75
Ω coaxial terminator to terminate the other loop through to the
CHAN A connector on the video measurement set. See Figure 4-3.
75
Ω coaxial terminator
Video measurement set
rear panel (VM700T Option 01/11/1S/40)
SPG600 rear panel
75
Ω BNC cable
Figure 4-3: Equipment connection for verifying the blanking level
3. Recall the Factory Default preset as follows:
a. Press the SYSTEM button to display the System menu.
b. Press the ENTER button to display the Preset submenu.
c.Press the left (
W) or right (X) arrow button to select Factory Default.
d. Press the ENTER button to recall the factory default settings.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-9
Performance Verification
4. Press the Measure button on the video measurement set to open the Measure
mode display.
5. Touch the Level Meter soft key.
6. Press the Menu button to display the Level Meter main menu.
7. Touch the Measure Position soft key to display the Measure Position
submenu.
8. Touch the Dc Cpl. ABS. Meas. soft key.
9. Verify that the blanking level is within the range of +50 mV to -50 mV.
10. Move the BNC cable connection from the CH 1 connector to the CH 2
connector on the sync pulse generator.
11. Repeat step 9.
12. Move the BNC cable connection from the CH 2 connector to the CH 3
connector on the sync pulse generator.
13. Repeat step 9.
14. Move the BNC cable connection from the CH 3 connector to the CH 4
connector on the sync pulse generator.
15. Repeat step 9.
SPG600 Option 02 Only. Perform steps 16 through 23 if Option 02 is installed in
your SPG600.
16. Move the BNC cable connection from the CH 4 connector to the CH 5
connector on the sync pulse generator.
17. Repeat step 9.
18. Move the BNC cable connection from the CH 5 connector to the CH 6
connector on the sync pulse generator.
19. Repeat step 9.
20. Move the BNC cable connection from the CH 6 connector to the CH 7
connector on the sync pulse generator.
21. Repeat step 9.
22. Move the BNC cable connection from the CH 7 connector to the CH 8
connector on the sync pulse generator.
23. Repeat step 9.
4-10SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
24. Move the BNC cable connection from the CH 4 (or CH 8) connector to the CH
1 connector on the sync pulse generator.
25. Press the Measure button on the video measurement set to open the Measure
mode display.
26. Touch the Mode soft key to set the instrument to Analog mode, and then touch
the H_Timing soft key.
27. Press the Menu button to display the H_Timing main menu.
28. Touch the Average soft key and rotate the front-panel knob to set the value to
32.
29. Touch the RS-170A soft key.
30. Press the Select Line button.
31. Rotate the front-panel knob to set the measurement line to 100 (Field=1,
Line=100).
32. Verify that the burst amplitude is within the range of 271.4 mV to 286.4 mV.
33. Verify that the sync amplitude is within the range of 277.1 mV to 294.3 mV.
34. Move the BNC cable co nnec tion from CH 1 connector to the CH 2 co nnec tor
on the sync pulse generator.
35. Repeat steps 32 and 33.
36. Move the BNC cable co nnec tion from CH 2 connector to the CH 3 co nnec tor
on the sync pulse generator.
37. Repeat steps 32 and 33.
38. Move the BNC cable co nnec tion from CH 3 connector to the CH 4 co nnec tor
on the sync pulse generator.
39. Repeat steps 32 and 33.
SPG600 Option 02 Only. Perform steps 40 through 47 if Option 02 is installed in
your SPG600.
40. Move the BNC cable co nnec tion from CH 4 connector to the CH 5 co nnec tor
on the sync pulse generator.
41. Repeat steps 32 and 33.
42. Move the BNC cable co nnec tion from CH 5 connector to the CH 6 co nnec tor
on the sync pulse generator.
43. Repeat steps 32 and 33.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-11
Performance Verification
44. Move the BNC cable connection from CH 6 connector to the CH 7 connector
on the sync pulse generator.
45. Repeat steps 32 and 33.
46. Move the BNC cable connection from CH 7 connector to the CH 8 connector
on the sync pulse generator.
47. Repeat steps 32 and 33.
Serial Digital Output
This test verifies that serial digital signals are output correctly from the SDI 1 and
SDI 2 connectors. The following equipment is required for the test:
Video meas urement set
75 Ω BNC cable
75 Ω coaxial terminator
Perform the following procedure to verify that serial digital signals are output
correctly from the SDI 1 and SDI 2 connectors.
1. Use the 75
Ω BNC cable to connect SDI 1 connector on the sync pulse
generator to the SDI Ch.A connector on the video measurement set rear panel.
See Figure 4-4.
2. Use the 75
Ω coaxial terminator to terminate the other loop through to the SDI
Ch.A connector on the video measurement set rear panel. See Figure 4-4.
Ω coaxial terminator
75
Video measurement set
rear panel (VM700T Option 01/11/1S/40)
75 Ω BNC cable
SPG600 rear panel
Figure 4-4: Equipment connection for verifying the serial digital outputs
4-12SPG600 & SPG300 Sync Pulse Generators Service Manual
3. Recall the Factory Default preset as follows:
a. Press the SYSTEM button to display the System menu.
b. Press the ENTER button to display the Preset submenu.
Performance Verification
c.Press the left (
W) or right (X) arrow button to select Factory Default.
d. Press the ENTER button to recall the factory default settings.
4. Select the 75% Color Bars signal as follows:
a. Press the VIDEO button to display the Video menu.
b. Press the up (
S) or down (T) arrow button to select TEST SIGNAL
(SDI).
c.Press the ENTER button.
d. Press the left (
W) or right (X) arrow button to select 75% Color Bars.
5. Turn on the logo overlay as follows:
a. Press the CANCEL button to return the Video menu.
b. Press the up (
c.Press the left (
S) or down (T) arrow button to select OVERLAY.
W) or right (X) arrow button to select SDI (STD).
d. Press the ENTER button to display the Overlay submenu.
e.Press the left (
W) or right (X) arrow button to select Logo.
f.Press the ENTER button to display the Logo submenu.
g. Press the left (
W) or right (X) arrow button to select a logo.
6. Turn on the embedded audio for Group 1 as follows:
a. Press the AUDIO button to display the Audio menu.
b. Press the up (
S) or down (T) arrow button to select EMBEDDED
(STD/TEST).
c.Press the left (
W) or right (X) arrow button to select Group 1.
d. Press the ENTER button to display the Embedded submenu.
e.Press the left (
W) or right (X) arrow button to select Enable.
f.Press the ENTER button.
7. Press the Measure button on the video measurement set to open the Measure
mode display.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-13
Performance Verification
8. Touch the SDI soft key to set the video measurement set to Digital mode.
9. In the Measurement mode display, touch the SDI Format application.
10. Verify that no error messages appears on the SDI Format Monitor display.
11. Press the Picture button to set the video measurement set to SDI Picture
application.
12. Verify that the correct color bars and overlay logo are displayed on the SDI
Picture display.
13. Press the Measure button on the video measurement set to open the Measure
mode display.
14. In the Measure mode display, touch the SDI Audio Format application.
15. Verify that no CRC errors appear on the SDI Audio Format Analyzer display.
16. Move the BNC cable from the SDI 1 connector to the SDI 2 connector on the
sync pulse generator.
17. Press the Measure button on the video measurement set to open the Measure
mode display.
18. Repeat steps 9 through 15.
SPG600 Option 03 Only. Perform steps 19 through 24 if Option 03 is installed in
your SPG600.
19. Move the BNC cable from the SDI 2 connector to the SDI 3 connector on the
sync pulse generator.
20. Press the Measure button on the video measurement set to open the Measure
mode display.
21. Repeat steps 9 through 15.
22. Move the BNC cable from the SDI 3 connector to the SDI 4 connector on the
sync pulse generator.
23. Press the Measure button on the video measurement set to open the Measure
mode display.
24. Repeat steps 9 through 15.
4-14SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
Eye Pattern Check
This test verifies the signal level and rise/fall times of the SDI 1 and SDI 2 outputs.
The following equipment is required for the test:
Video meas urement set
75 Ω BNC cable
75 Ω coaxial terminator
Perform the following procedure to verify the signal level and rise/fall times of the
SDI 1 and SDI 2 outputs.
Use the equipment connection and controls from the previous test.
1. Press the Measure button on the video measurement set to open the Measure
mode display.
2. In the Measure mode display, touch the SDI Eye Diagram application to open
the Eye Diagram display.
3. Push the Menu button.
4. In the Eye Diagram display, touch the Average soft key to set the value for Eye Persistence to Infinity.
5. In the Eye Diagram display, touch the Measure soft key to open the Measure
submenu.
6. In the Measure submenu, touch the following soft keys to toggle each
measurement display on: Eye Amplitude, Rise\Fall Times, and Rise\Fall
Adjusted.
7. Verify that the eye amplitude and rise and fall times values are as follows:
Eye amplitude: 720 mV to 880 mV
Rise and fall time: 400 ps to 1500 ps
8. Change the BNC cable connection from the SDI 1 connector to the SDI 2
connector.
9. Repeat step 7.
SPG600 Option 03 Only. Perform steps 9 through 12 if Option 03 is installed in your
SPG600.
9. Change the BNC cable connection from the SDI 2 connector to the SDI 3
connector.
10. Repeat step 7.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-15
Performance Verification
11. Change the BNC cable connection from the SDI 3 connector to the SDI 4
connector.
12. Repeat step 7.
AES/EBU Digital Audio
Outputs (SPG600 Only)
This test verifies that AES/EBU digital audio signals are output correctly from the
AES 1+2, AES 3+4, AES 5+6, and AES 7+8 connectors. The following equipment
is required for this test:
Perform the following procedure to verify that AES/EBU digital audio signals are
output correctly from the AES 1+2, AES 3+4, AES 5+6, and AES 7+8 connectors.
1. Use the 75
Ω BNC cable and the 75 Ω feed-through terminator to connect the
AES 1+2 connector on the sync pulse generator to the oscilloscope CH1 input.
See Figure 4-5.
Oscilloscope (TDS3032B)
SPG600 rear panel
Ω BNC cable
75
75 Ω feed-through
terminator
Figure 4-5: Initial equipment connection for verifying the serial digital audio outputs
2. Set the oscilloscope settings as indicated below:
4-16SPG600 & SPG300 Sync Pulse Generators Service Manual
3. Recall Factory Default preset as follows:
a. Press the SYSTEM button to display the System menu.
b. Press the ENTER button to display the Preset submenu.
Performance Verification
c.Press the left (
W) or right (X) arrow button to select Factory Default.
d. Press the ENTER button to recall the factory default settings.
4. Use the oscilloscope to measure that the signal amplitude is within the range
of 900 mV to 1100 mV.
5. Change the BNC cable connection from the AES 1+2 connector to the AES
3+4 connector on the sync pulse generator.
6. Repeat step 4.
7. Change the BNC cable connection from the AES 3+4 connector to the AES
5+6 connector on the sync pulse generator.
8. Repeat step 4.
9. Change the BNC cable connection from the AES 5+6 connector to the AES
7+8 connector on the sync pulse generator.
10. Repeat step 4.
11. Disconnect the BNC cable and the 75
Ω terminator from the oscilloscope CH1
input connector, and then connect the BN C cable to the CH1-2 BNC conn ector
on the digital audio monitor rear panel. See Figure 4-6.
12. Use the 75
Ω coaxial terminator to terminate the other loop through to the
CH1-2 BNC connector on the digital audio monitor rear-panel.
Digital audio monitor
rear panel (764)
SPG600 rear panel
75
Ω BNC cable
75 Ω coaxial terminator
Figure 4-6: Second equipment connection for verifying the serial digital audio outputs
SPG600 & SPG300 Sync Pulse Generators Service Manual4-17
Performance Verification
13. On the digital audio monitor front panel, press the MENU button to display the
Top menu.
14. Select Inputs from the Top menu
15. Select CH1-2 input: BNC-unbalanced from the submenu.
16. On the digital audio monitor front panel, press the CLEAR MENU button to
clear the menu.
17. On the digital audio monitor front panel, press the CH STATUS button to
display Channel Status view.
18. Check that no CRC errors appear on the monitor.
19. On the digital audio monitor front panel, press the AUDIO button to display the Audio/Session view.
20. Verify that the digital audio monitor bar graphs show both Channel 1 and
Channel 2 at -20 dBFS.
21. Change the BNC cable connection from AES 1+2 connector to the AES 3+4
connector on the sync pulse generator.
22. Repeat steps 17 through 20.
23. Change the BNC cable connection from AES 3+4 connector to the AES 5+6
connector on the sync pulse generator.
24. Repeat steps 17 through 20.
25. Change the BNC cable connection from AES 5+6 connector to the AES 7+8
connector on the sync pulse generator.
26. Repeat steps 17 through 20.
27. Disconnect the BNC cable from the sync pulse generator and digital audio
monitor.
4-18SPG600 & SPG300 Sync Pulse Generators Service Manual
Performance Verification
XLR Digital Audio Outputs
SPG600 rear panel
This test verifies that AES/EBU digital audio signals are output correctly from the
1+2/RIGHT and 3+4/LEFT XLR connectors. The following equipment is required
for this test:
Digital audio monitor
XLR cable
Perform the following procedure to verify that AES/EBU digital audio signals are
output correctly from the 1+2/RIGHT and 3+4/LEFT XLR connectors.
1. Use the XLR cable to connect the 1+2/RIGHT connector on the sync pulse
generator to the CH 1-2 XLR connector on the digital audio monitor rear panel.
See Figure 4-7.
Digital audio monitor
rear panel (764)
XLR cable
Figure 4-7: Equipment connection for verifying the XLR digital audio outputs
2. On the digital audio monitor front panel, press the MENU button to display the
Top menu.
3. Select Inputs from the Top menu.
4. Select CH1-2 input: XLR-balanced from the submenu.
5. On the digital audio monitor front panel, press the CLEAR MENU button to
clear the menu.
6. On the digital audio monitor front panel, press the CH STATU S button to
display the Channel Status view.
7. Check that no CRC errors appear on the monitor.
8. Change the XLR cable connection fro m the 1+2/RIGHT connector to the
3+4/LEFT connector on the sync pulse generator.
9. Repeat step 7.
10. Change the XLR cable connection from the 3+4/LEFT connector to the
1+2/RIGHT connector on the sync pulse generator.
SPG600 & SPG300 Sync Pulse Generators Service Manual4-19
Performance Verification
11. On the digital audio monitor front panel, press the AUDIO button to display
Audio/Session view.
12. Verify that the digital audio monitor bar graphs show both Channel 1 and
Channel 2 at -20 dBFS.
13. Change the XLR cable connection from the 1+2/RIGHT connector to the
3+4/LEFT connector on the sync pulse generator.
14. Repeat step 12.
XLR Analog Audio Outputs
This test verifies that analog audio signals are output correctly from the
1+2/RIGHT and 3+4/LEFT XLR connectors. The following equipment is required
for this test:
Video meas urement set
Two fema le XLR to male mini-XLR adapter cables
Perform the following procedure to verify that analog audio signals are output
correctly from the 1+2/RIGHT and 3+4/LEFT XLR connectors.
1. Use the female XLR to male mini-XLR adapter cable to connect the
1+2/RIGHT connector on the sync pulse generator to the RIGHT INPUT
connector on the video measurement set. See Figure 4-8.
2. Use the female XLR to male mini-XLR adapter cable to connect the 3+4/LEFT
connector on the sync pulse generator to the LEFT INPUT connector on the
video measurement set. See Figure 4-8.
Video measurem ent set
rear panel (VM700T Option 01/11/1S/40)
SPG600 rear panel
Female XLR to male mini-XLR adapter cable
Figure 4-8: Equipment connection for verifying the XLR analog audio outputs
4-20SPG600 & SPG300 Sync Pulse Generators Service Manual
3. Recall the Factory Default preset as follows:
a. Press the SYSTEM button to display the System menu.
b. Press the ENTER button to display the Preset submenu.
Performance Verification
c.Press the left (
W) or right (X) arrow button to select Factory Default.
d. Press the ENTER button to recall the factory default settings.
4. Output analog audio signals from the XLR connectors as follows:
a. Press the CANCEL button to return to the System menu.
b. Press the up (
S) or down (T) arrow button to select CONFIGURATION.
c.Press the ENTER button to display the Configuration submenu.
d. Press the up (
e.Press the left (
S) or down (T) arrow button to select XLR OUTPUT.
W) or right (X) arrow button to select Analog Audio.
f.Press the ENTER button.
5. Press the Measure button on the video measurement set to open the Measure
mode display.
6. In the Measure mode display, touch the Audio soft key.
7. Touch the Audio Analyzer soft key to open the Audio Analyzer display
8. Verify that the frequency, level, and THD+N values are as follows:
3. Use the oscilloscope to measure that the signal amplitude is as follows:
Low: < 0.8 V
High: > 2.1 V
This completes the Performance Verification procedure. If you require further
assistance, contact your nearest Tektronix Service Center.
Ω
4-22SPG600 & SPG300 Sync Pulse Generators Service Manual
Adjustment
Adjustment Procedure
This section contains information needed to adjust the sync pulse generator.
The only adjustment in the sync pulse generator is for the master clock frequency.
Requirement for Adjustment
Before proceeding, note the following requirement:
Warm-up Period
The sync pulse generator requires a 20 minute warm-up time in a +20 °C to +30 °C
environment before it is adjusted. Adjustment done before the operating
temperature has stabilized may cause errors in performance.
In addition, the signal generator requires appropriate warm-up time to meet the
frequency accuracy.
Equipment Required
Table 5-1 lists the equipment required to adjust the master clock frequency.
Table 5-1: Equipment required
ItemNo.Minimum requirementRecommended equipment
Signal generator1Frequency: 10 MHz
Amplitude: 8 dBm
75 Ω BNC cable1Length: 42 inchesTektronix part no. 012-0074-00
50 Ω-to-75 Ω minimum loss
attenuator
75 Ω coax terminator1Length: 42 inchesTektronix part no. 011-0102-01
1Tektronix part no. 011-0057-01
± 0.05 ppm
Agilent 8648A option 1E5
SPG600 & SPG300 Sync Pulse Generators Service Manual5-1
Adjustment Procedure
Master Clock Frequency Adjustment
SPG600 rear panel
Procedure
Perform the following procedure to adjust the master clock frequency.
Ω BNC cable and the 50 Ω -to-75 Ω minimum loss attenuator to
connect the REF connector on the sync pulse generator to the output connector
on the signal generator as shown in Figure 5-1.
2. Use the 75
Ω coax terminator to terminate the other REF connector on the sync
pulse generator as shown in Figure 5-1.
Signal generator
75 Ω coax terminator
75 Ω BNC cable
Figure 5-1: Equipment connection for adjusting master clock frequency
3. Press the VIDEO, GENLOCK, and PANEL ENABLE buttons
simultaneously, and then release the VIDEO and GENLOCK buttons to
restart the instrument in Factory mode.
4. Set the genlock source of the sync pulse generator as follows:
a. Press the GENLOCK button to display the Genlock menu.
b. Press the up (
S) or down (T) arrow button to select GENLOCK
SOURCE.
c.Press the left (
W) or right (X) arrow button to select CW 10 MHz.
d. Press the ENTER button.
5. Press the SYSTEM button to display the System menu.
50
Ω-to-75 Ω minimum
loss attenuator
5-2SPG600 & SPG300 Sync Pulse Generators Service Manual
Adjustment Procedure
6. Press the up (
S) or down (T) arrow button to select CALIBRATION.
7. Press the ENTER button.
8. Press the up (
S) or down (T) arrow button to select FREQ CAL.
9. Press the ENTER button.
This completes the master clock frequency adjustment procedures.
SPG600 & SPG300 Sync Pulse Generators Service Manual5-3
Adjustment Procedure
5-4SPG600 & SPG300 Sync Pulse Generators Service Manual
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