GRASS VALLEY SMS 8301A Instruction Manual

Instruction Manual

TP3473-01

FIRST PRINTNG: AUGUST 1995

REVISED PRINTNG: DECEMBER1997

SMS 8301A

COMPONENT ANALOG VIDEO TO SERIAL DIGITAL CONVERTER

Contacting Grass Valley Group

Region Voice Fax Address Web Site

North America [phone]

Pacific Operations [phone]

U.K., Europe, Asia,
Middle East

France [phone]
Germany [phone] [phone]

530-478-4148

Support: 852-2585-6579
[phone] [phone]

Copyright © Grass Valley Group. All rights reserved.

This document may not be copied, in whole or in part, or otherwise reproduced,
except as specifically permitted under U.S. copyright law, without the prior written
consent of Grass Valley Group, P.O. Box 599000, Nevada City, CA 95959-7900 USA.
GRASS VALLEY GROUP is a registered trademark and Grass Valley is a trademark of
Grass Valley Group. All registered trademarks and trademarks are property of their
respective holders. Grass Valley Group products are covered by U.S. and foreign pat­ents, issued and pending. Product options and specifications subject to change without
notice. The information in this manual is furnished for informational use only, is sub­ject to change without notice, and should not be construed as a commitment by Grass
Valley Group. Grass Valley Group assumes no responsibility or liability for any errors
or inaccuracies that may appear in this publication.

[phone] Grass Valley Group

[phone]

P.O. Box 599000
Nevada City, CA 95959-7900 USA

www.grassvalleygroup.com

Contents

Important Safeguards and Notices

Symbols and Their Meanings in This Manual . . . . . . . . . . . . . . . . . . . . . . vii

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Power Supply Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

North American Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . xi

International Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

EMC Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Federal Communications Commission

(FCC) Part 15 Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

89/336/EEC EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

SMS 8301A Component Analog Video to Serial Component Digital Converter

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Timing and Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Vertical Blanking Width Selection . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8/10 Bit Output Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

MII/BETA Format Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 11

GBR Format Internal/External Sync Selection . . . . . . . . . . . . . . 12

Chroma Filter Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

External Sync Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Rear Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

iii

Contents

Index

Front Panel Controls/Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Input Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Y Black Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Gain Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Ref Present LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Module Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Alignment Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Free Run Frequency Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Frequency Response Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Y/G Ref H Phase Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

iv

Contents

List of Illustrations

Figure 1. 8301A Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Figure 2. JP1 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3. JP101 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 4. JP102 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 5. JP103 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 6. JP600 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 7. JP900 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Figure 8. 8301A Rear Connector Overlay . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 9. 8301A Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 10. 8301A Calibration Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 11. JP103 Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 12. JP103 and JP200 Shorting Jumpers . . . . . . . . . . . . . . . . . . . . . . . 26

v

Contents

List of Tables

Table 1. Format Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Table 2. Signal Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

vi

Important Safeguards and Notices

Information on the following pages provides important safety

guidelines for both Operator and Service Personnel. Specific

warnings and cautions will be found throughout the manual

where they apply, but may not appear here. Please read and

follow the important safety information, noting especially those

instructions related to risk of fire, electric shock or injury to

persons.

WARNING

Any instructions in this manual that require opening the equipment

cover or enclosure are for use by qualified service personnel only.

To reduce the risk of electric shock, do not perform any servicing

other than that contained in the operating instructions unless you

are qualified to do so

.

Symbols and Their Meanings in This Manual

The lightning flash with arrowhead symbol, within an equilateral

triangle, alerts the user to the presence of “dangerous voltage”

within the product’s enclosure that may be of sufficient

magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle alerts the

user to the presence of important operating and maintenance

(servicing) instructions in the literature accompanying the

equipment.

vii

Section — Important Safeguards and Notices

This symbol represents a protective grounding terminal. Such a
terminal must be connected to earth ground prior to making any
other connections to the equipment.

The fuse symbol indicates that the fuse referenced in text must be
replaced with one having the ratings indicated.

viii

Warnings

Warnings

Heed all warnings on the unit and in the operating

■

instructions.
Do not use this product in or near water.

■

■

Disconnect AC power before installing any options.

■

This product is grounded through the grounding conductor
of the power cord. To avoid electrical shock, plug the power
cord into a properly wired receptacle before connecting the
product inputs or outputs.

■

Route power cords and other cables so that they are not likely
to be damaged.

■

Disconnect power before cleaning. Do not use liquid or
aerosol cleaners; use only a damp cloth.

Dangerous voltages exist at several points in this product. To

■

avoid personal injury, do not touch exposed connections and
components while power is on.

Do not wear hand jewelry or watches when troubleshooting

■

high current circuits, such as the power supplies.
During installation, do not use the door handles or front

■

panels to lift the equipment as they may open abruptly and
injure you.

To avoid fire hazard, use only the replacement parts with

■

specified correct type, voltage and current rating as
referenced in the appropriate parts list for this product.
Always refer fuse replacement to qualified service personnel.

To avoid explosion, do not operate this product in an

■

explosive atmosphere unless it has been specifically certified
for such operation.

■

Have qualified personnel perform safety checks after any
completed service.

If equipped with redundant power, this unit has two power

■

cords. To reduce the risk of electric shock, disconnect both
power supply cords before servicing.

ix

Section — Important Safeguards and Notices

Cautions

To prevent damage to equipment when replacing fuses, locate

■

and correct the trouble that caused the fuse to blow before
applying power.

Verify that all power supply lights are off before removing

■

power supply or servicing equipment.
Use only specified replacement parts.

■

■

Follow static precautions at all times when handling this
equipment.

■

Leave the back of the frame clear for air exhaust cooling and
to allow room for cabling. Slots and openings in the cabinet
are provided for ventilation. Do not block them.

■

The front door is part of the fire enclosure and should be kept
closed during normal operation.

■

This product should be powered only as described in the
manual. To prevent equipment damage select the proper line
voltage at the AC input connector as described in the
installation documentation.

■

Ensure that the two power supply cords are each plugged into
a separate branch circuit in case one circuit should fail.

■

Circuit boards in this product are densely populated with
surface mount and ASIC components. Special tools and
techniques are required to safely and effectively troubleshoot
and repair modules that use SMT or ASIC components. For
this reason, service and repair of Tektronix-GVP products
incorporating surface mount technology are supported only
on a module exchange basis. Customers should not attempt to
troubleshoot or repair modules that contain SMT or ASIC
components. Tektronix-GVP assumes no liability for damage
caused by unauthorized repairs. This applies to both in- and
out-of-warranty products.

x

Power Supply Cords

There are two types of power supply cords available for the

SMS 8000 Series. Refer to one of the following, depending on the

location where the equipment will be used.

North American Power Supply Cord

This equipment is supplied with a molded grounding plug

(NEMA 5-15P) at one end and a molded grounding receptacle

(IEC 320-C13) at the other end. Conductors are color coded white

(neutral), black (line) and green or green/yellow (ground).

Operation of this equipment at voltages exceeding 130 VAC will

require power supply cords which comply with NEMA

configurations.

International Power Supply Cord

Power Supply Cords

This equipment is supplied with a molded grounding receptacle

(IEC 320-C13) at one end and stripped conductor (50/5 mm) at the

other end. Conductors are CEE color coded, light blue (neutral),

brown (line) and green/yellow (ground). Other IEC 320 C-13 type

power supply cords can be used if they comply with the safety

regulations of the country in which they are installed.

xi

Section — Important Safeguards and Notices

EMC Regulatory Notices

Federal Communications Commission (FCC) Part 15 Information

This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference received including
interference that may cause undesirable operations.

89/336/EEC EMC Directive

EN500081-1

EN55022

WARNING

xii

This is a Class A product. In a domestic environment this product
may cause radio interference, in which case the user may be
required to take adequate measures.

SMS 8301A Component Analog Video to Serial Component Digital Converter

Introduction

The SMS 8000 product line consists of a 1RU frame which holds

up to 4 modules. The modules provide such functions as video

delay and format conversion. Modules are selected by the user to

suit their particular requirements.

The SMS 8301A CAV to Serial Component Digital Converter

Module accepts a component analog video (CAV) input (525 or

625 line) and converts it to an 8 or 10 bit 270 Mb/s serial

component digital signal per SMPTE 259M/EBU Tech 3267

standard.

8301A features are:

Automatically selects between 525 and 625 lines

■

■

Selectable Chroma Channel Bandwidth

■

Gain Calibration Display

■

Ten Bit A/D Conversion
Selectable Ten Bit Output or Dynamic Rounding to 8 Bits

■

■

Oversampling A/D Conversion

■

Input selectable MII, BETA, EBU N10, or GBR
Digital Filtering

■

■

Digital Clamping

■

525/625 Vertical Blanking Width (Narrow or Wide)
Selectable Internal or External Reference in GBR Mode

■

Remote Chroma Off Input

■

■

525/625 Line Standard Sense Output

1

SMS 8301A Component Analog Video to Serial Component Digital Converter

Function

This description is divided into two sections:

■

Signal Processing

■

Timing and Control

Refer to block diagram Figure 1 while reading the pages that
follow.

Reference

Vertical

Detector

Sync

External

Reference

Input

Amplifiers

and

Reference

Selector

Ref

Video

Timing and Control

Y/G
B-Y/B
R-Y/R

Analog

Processing

and Filtering

Y/G
B-Y/B
R-Y/R

Signal Processing

Figure 1. 8301A Block Diagram

Sync

Separator

A/D Converter

and

Digital Filter

Ref

Horiz

Y/G
B-Y/B
R-Y/R

Lock Phase

Error

Detector

Digital Matrix

with

Bypass

2