Grass Valley 1200 Installation

Download

Installation and Service

FIRST PRINTNG: MARCH 1997

3.0software release

TP0715-01

MODEL 1200

DIGITAL PRODUCTION SWITCHER

Customer Service Information

Address

Mail: Shipping Only:

P.O. Box 1114 400 Providence Mine Rd Grass Valley, CA 95945 Nevada City, CA 95959

Telephone

Tektronix, North America: Tektronix, UK: Tektronix, Hong Kong: Tektronix. Brazil: Tektronix. Mexico: Elsewhere: Fax:

(916) 478-3181

Note that as of November 1, 1997 the FAX number changes to (530) 478-3181

E-Mail:

Tektronix World Wide Web

http://www.tek.com

Related Publications

1200 Manual Set TP0713 Quick Reference Guide TP0714 Installation & Service TP0715 Operation Manual TP0716

(800) 547-8949

44-1628-403699

852-2593-5500

55 11 3741-8417

52 5 666-6333

Distributor or sales office from whom equipment was purchased

gvgservice@tek.com

Copyright © Tektronix, Inc. All rights reserved. Printed in U.S.A.   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, TEK, Grass Valley Group, Borderline, E-MEM, TEN-X, Wavelink, and are registered trademarks, and Air Link, Auto Match, Doubletake, E-Disk, Eagle V, Emphasys, EZ-Link, 409, Horizon, Jogger, Kadenza, Kaleidoscope, K-Mask, Key-Layer, KeyLink, MASTER System, Master 21, MAX, Omni-Key, Performer, Programmed Motion, Silhouette, Softset, Streamline, Super Edit, TEN-20, 20-TEN, Trace, TrailBlazer, VideoDesktop, Flex-Time, and XEDL are trademarks of Tektronix, Inc. P.O. Box 1000 Wilsonville, OR 97070-1000 U.S.A.   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 Tektronix, Inc. Tektronix assumes no responsibility or liability for any errors or inaccuracies that may appear in this publication.  Tektronix, Inc., Video and Networking Division, P.O. Box 1114 Grass Valley, California 95945 U.S.A.  Telephone (916) 478-3160



Important Safeguards and Regulatory Notices

Symbols and Their Meanings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii

Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

North American Power Supply Cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

International Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

EMC Regulatory Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Federal Communications Commission (FCC) Part 15 Information . . . . . . . xv

5389/336/EEC EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

EN500081-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

EN55022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv

Section 1 Ñ System Overview

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

Section Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Model 1200 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Model 1200 Features and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Effects System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Keyers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Interfacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

E-MEM Effects Memory System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Model 1200 Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Model 1200 System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Section 2 Ñ Installation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Information Required Before Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Required Tools and Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Summary of Installation Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

iii

Contents

Control Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Signal Processor Frame Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Control Panel J1 to Frame J29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

External Reference Input to Frame J25/J26 and Panel J3/J4 . . . . . . . . . . . . 2-11

Digital Video and Key Inputs J1ÐJ16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Video and Key Outputs J17ÐJ24 and J33ÐJ38 . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Program (PGM) Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Program Key Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Preview (PVW) Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Clean Feed Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Aux Bus/Effects Send Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Serial Ports J28, J30, J31, J32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Modem Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Editor Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

DPM Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Satellite Auxiliary Panel Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Serial Port Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

GPI J27 and Tally J28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

AC Power Connection and System Powerup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

LampSaver Panel Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Menu Pushbuttons and Knobs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Define Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Ports Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28

GPI Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30

Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32

Installing Panel Pushbutton Lens Chips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Option Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34

Analog Output Option Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36

Installing the Option Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36

Setting Analog Output Option Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38

Blanking Width and Video Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38

Video Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

Adjusting Analog Output Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Satellite Auxiliary Bus Control Panel Option . . . . . . . . . . . . . . . . . . . . . . . . 2-44

Section 3 Ñ Functional Description

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Service Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Frame Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Video Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Standard System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Control Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Timing Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Processing Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Shaped and Unshaped Video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Internal Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

16 X 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Contents

Frame Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Control Processor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

System Boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Sync Pulse Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Sync Pulse Generator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Clock Pulse Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Input Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Serial Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Parallel Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Crosspoint Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Autotiming and Chrominance/Luminance Split . . . . . . . . . . . . . . . . . . 3-16

Crosspoint Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Chroma Keyer Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Keyer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Effects Send Crosspoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Wipe Pattern Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Effects Send Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Key Processor Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Preset Pattern Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Luminance, Linear, and Chroma Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Borderline Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Program Mixer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Clean Feed Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

DSK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Key and Depth Output Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Transition Generators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Depth Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Analog Output Option (DAC) Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

064912 DAC Support Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

064815 DAC Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Contents

Section 4 Ñ Maintenance

Preview Mixer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Control Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Control Panel Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Panel Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Powering Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Removing Circuit Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Repairing Circuit Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Servicing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Repairing Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Power Supply Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Fan Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Pushbutton Lamp Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Using the Module Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Circuit Module Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Repairing Circuit Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Static Charges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Control Panel Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Lever Arm Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Software Installation or Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Saving E-MEM Data to Diskette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Loading Software From Diskette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

System Power Down Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

System Restart after Power-Serge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Section 5 Ñ Diagnostics and Troubleshooting

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

General Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Check Control Panel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Check Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Reset Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Perform Visual Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Check Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Index

Contents

DC Power Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Bootup Diagnostic Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Program Loading Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Normal Operation Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Detailed Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Exchanging Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Menu Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Accessing the Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Displays Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Knob Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Lever Arm and Joystick Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Button/Lamp DIM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Button/Lamp BRIGHT Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Walking Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Discrete LED Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Comm Port Loopback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Exiting Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

List of Illustrations

Figure 1-1 Main Assemblies of the Model 1200 Digital Production Switcher . . . . . 1-2

Figure 1-2 Model 1200 Simplified Functional Block Diagram . . . . . . . . . . . . . . . . . . 1-6

Figure 2-1 Control Panel Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Figure 2-2 Dimensions for Flush-Mounting the Panel in a Console . . . . . . . . . . . . . 2-5

Figure 2-3 Installing the Signal Processor Frame in a Standard 19-inch Rack . . . . 2-6

Figure 2-4 Proper Routing of Cables to the Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Figure 2-5 Model 1200 Frame Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Figure 2-6 Rear of Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Figure 2-7 Serial Port Jumpers on the Control Processor Module . . . . . . . . . . . . . 2-14

Figure 2-8 Model 1200 Connector Pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-9 AC LINE IN Connector J39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Figure 2-10 Control Panel Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Figure 2-11 Miscellaneous Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

Figure 2-12 1200 Configuration Menu Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Figure 2-13 Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20

Figure 2-14 \System Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Figure 2-15 Define Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Figure 2-16 4:4:4 Chroma Key Sources Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Figure 2-17 Crosspoint Display Legends Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

Figure 2-18 Crosspoint Map Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

Figure 2-19 Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26

Figure 2-20 Timing Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

Figure 2-21 Ports Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

Figure 2-22 GPI Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Figure 2-23 GPI Output Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

Figure 2-24 Tally Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32

Figure 2-25 Pushbutton Lens Chip Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

vii

Contents

Figure 2-26 Typical Installation of Submodule and Input/Output Options . . . . . . 2-34

Figure 2-27 Locations of Submodule Options on Main Modules . . . . . . . . . . . . . . . 2-35

Figure 2-28 Installing the Analog Output Option (DAC) Modules . . . . . . . . . . . . . 2-37

Figure 2-29 Color Difference Standard Signal Levels . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

Figure 2-30 RGB Signal Level Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-42

Figure 2-31 Satellite Aux Bus Control Panel Installation . . . . . . . . . . . . . . . . . . . . . 2-44

Figure 3-1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Figure 3-2 Control Processor Module Block Diagram . . . . . . . . . . . . . . . . . . . . . . . 3-11

Figure 3-3 Sync Pulse Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Figure 3-4 Serial Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Figure 3-5 Parallel Input Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Figure 3-6 Crosspoint Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Figure 3-7 Chroma Keyer Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20

Figure 3-8 Keyer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

Figure 3-9 Wipe Pattern Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Figure 3-10 Key Processor Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23

Figure 3-11 Borderline Submodule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Figure 3-12 Program Mixer Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Figure 3-13 Clean Feed Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Figure 3-14 DSK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Figure 3-15 Key and Depth Output Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Figure 3-16 Transition Generators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Figure 3-17 Key Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Figure 3-18 DAC Support Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Figure 3-19 DAC Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Figure 3-20 Output Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Figure 3-21 Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Figure 3-22 Panel Keyboard Scanning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

viii

Figure 4-1 Control Panel Lamp Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Figure 4-2 Using the Module Extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Figure 4-3 Control Panel Module Board Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Figure 4-4 Lever Arm Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Figure 4-5 Lever Arm Adjustment Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Figure 4-6 Accessing the Software Installation Mode . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Figure 4-7 Software Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Figure 4-8 MISC Menu with Safe Power Shut Down Selected . . . . . . . . . . . . . . . . 4-15

Figure 5-1 Trouble TreeÑCommunications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Figure 5-2 Trouble TreeÑVideo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Figure 5-3 Trouble TreeÑMiscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Figure 5-4 Accessing the Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Figure 5-5 Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Figure 5-6 Displays Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Figure 5-7 Knob Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Figure 5-8 Lever Arm and Joystick Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Figure 5-9 Button/Lamp DIM Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

Figure 5-10 Button/Lamp BRIGHT Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

Figure 5-11 Walking Lamp Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Contents

Figure 5-12 Discrete LED Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Figure 5-13 Comm Port Loopback Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Figure 5-14 Loopback Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Figure 5-15 Exiting the Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

List of Tables

Table 1-1 Model 1200 System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

Table 2-1 Analog Output Option Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

Table 3-1 Power Supply Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Table 3-2 Panel Voltages and Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Contents

Important Safeguards and Regulatory 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

The lightning flash with arrowhead symbol, within an equilateral triangle,

alerts the user to the presence of Òdangerous voltageÓ within the productÕs

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 appliance.

The fuse symbol indicates that the fuse referenced in text must be replaced

with one having the ratings indicated.

This symbol represents an internal protective grounding terminal. Such a

terminal must be connected to earth ground prior to making any other

connections to the equipment.

Safeguards and Notices

Warnings

This symbol represents an external protective grounding terminal. Such a

terminal may be connected to earth ground as a supplement to an internal

grounding terminal.

CAUTION

This equipment contains static sensitive components. Use anti-static grounding

equipment whenever handling or servicing modules and components. When circuit

modules are removed from the frame, place them on a flat static controlled surface.

Failure to follow this precaution can result in component damage due to

electrostatic discharge.

■

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, refer all servicing to qualified personnel.

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 specified correct type, voltage and current rating as referenced in this service manual.

xii

■

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.

To avoid electrical shock hazard, do not open covers or access doors.

■

Dangerous voltages are present even with the AC power switch in the OFF position.

Cautions

Safeguards and Notices

■

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 the 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 fire enclosure and should be kept closed during normal operation.

To prevent damage to this equipment read the instructions in this

■

document for proper input voltage range selection.

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 GVG 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 components. GVG assumes no liability for damage caused by unauthorized repairs. This applies to both in- and out-of-warranty products.

xiii

Safeguards and Notices

North American Power Supply Cords

Each power cord for this equipment is supplied with a molded grounding

plug at one end and a molded grounding connector (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.

Black

White

Green or Green with Yellow stripe

Line

Neutral

Ground (Earth)

NOTE: This U.S. cord is for 110/125VAC Only. If 220VAC, it has two hot lines and no neutral.

International Power Supply Cord

Each power cord for this equipment is supplied with a molded grounding

connector (IEC 320-C13) at one end and stripped leads (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.

Brown

Blue

Green with Yellow stripe

Line

Neutral

Ground (Earth)

NOTE: This International cord is for BOTH 110 and 220VAC

Europe uses single or 3-phase 230 VAC, one hot line and 1 neutral.

xiv

EMC Regulatory Notice

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.

5389/336/EEC EMC Directive

Safeguards and Notices

EN500081-1

EN55022

WARNING

This is a Class A product. In a domestic en vironment this pr oduct

may cause radio interference, in which case the user may be

required to take adequate measures.

Safeguards and Notices

xvi

Introduction

System Overview

Welcome to the Model 1200 Service manual. This manual will help you

become familiar with the Model 1200 Component Digital Production

Switcher, install it in your facility, and maintain it in good operating

condition. In order to get the most out of this manual, we suggest you

follow these steps:

Section Contents

■

Read this section to gain an overview of the system and its components.

■

Read Section 2ÐInstallation completely. Then return to the beginning of the section and follow the instructions step by step to set up the switcher in your studio.

Skim Section 3ÐFunctional Description to gain a deeper understanding

■

of the overall design of the system.

■

Read Section 4ÐMaintenance to become familiar with routine maintenance requirements and the diagnostic tools available to you.

This section of the Service manual contains the following information:

Model 1200 Physical DescriptionÑpage 1Ð2

■

Model 1200 Features and OptionsÑpage 1Ð3

■

Model 1200 Functional OverviewÑpage 1Ð6

■

Model 1200 System SpecificationsÑpages 1-8 through 1-12

1-1

Section 1 Ñ System Overview

Model 1200 Physical Description

The Model 1200 Switcher (Figure 1-1) consists of two main assemblies: the

Control Panel and the Signal Processor Frame. The frame contains the

input/output options (back of frame), the video and key processing

boards, the system control processor, and the frame power supply. A single

data cable connects the panel to the frame.

Signal Processor Frame

Control Panel

Model

DIGITAL

200

1 0

Power Supply

Frame Module and Submodule Locations

064909 Borderline

064908 Key 1 Processor

064815/912 DAC Option

064910 Preview Mixer Option Module

064914 SPG Submodule

064911 Control Processor Module

064925 Chroma Keyer Submodule 064905 Crosspoint Module

064909 Borderline 064909 Borderline

064908 Key 2 Processor 064908 DSK Processor

064907 Keyer Module

064913 Depth Option

064910 Program Mixer Module

064913 Depth Option

1-2

Figure 1-1. Main Assemblies of the Model 1200 Digital Production Switcher

Model 1200 Features and Options

The Model 1200 Component Digital Production Switcher carries forward

the legacy of the industry-standard Model 100/110. Yet the Model 1200 is

a powerful advance over its analog predecessor, both because of many new

features and because of the tremendous advantage of digital video.

Features of the Model 1200 are listed on the following pages.

Inputs

■

Up to 16 optional component digital video or key inputs.

■

Inputs come in parallel or serial pairs and consist of submodules that plug into the back of the frame and are secured by screws.

Autotiming automatically times each input for 525 or 625 line to match

■

an External Reference. There is no timing adjustment if inputs fall within a range of ±24 µs (336 clocks).

Model 1200 Features and Options

Effects System

■

Inputs may be custom-mapped to crosspoints using the menu system.

■

Inputs can be set for 8 or 10 bits, shaped or unshaped video, key, key with depth, or the video input can be assigned to a key.

■

Processing amplifier can be adjusted and remembered for each crosspoint column.

■

Ten-bit component digital format for unparalleled signal quality and virtually unlimited effects layering.

Ten Crosspoint Switching Buses: Program Background, Preset

■

Background, Key 1 Source and Fill, Key 2 Source and Fill, DSK Source and Fill, Auxiliary 1, and Auxiliary 2.

■

Transitions include cut, lever arm, key out, fade to black. and frameaccurate effects and downstream keyer auto transitions

Wipe/mask system includes patterns adjustable for H and V multiples,

■

position, aspect, matte edge color, width, softness, rotation, symmetry, and modulation.

■

Many internal mattes: background matte, matte fill for each keyer, matte for each Borderline mode, wipe edge matte, preset pattern edge matte, and mattes generated by specific crosspoints when enabled using the terminal.

■ Program Mixer is standard. Preview Mixer is optional.

1-3

Section 1 Ñ System Overview

Keyers

■ One effects keyer and one downstream keyer (DSK) standard. A

second effects keyer is optional.

■ Each keyer is a self-contained submodule that mounts on the Keyer

Board. Keyers can be swapped for troubleshooting.

■ Each keyer creates luminance, linear, and preset pattern keys from any

Key Bus input. Keys can be split (separate source and fill crosspoints).

■ One Chroma Keyer option submodule mounts on the Crosspoint Board

and can be assigned to any of the three keyers. Can create a chroma key from any Key Bus input and includes its own adjustable force box mask.

■ Effects backgrounds and keys can be transitioned on or off separately

or simultaneously.

■ Separate DSK controls include cut, frame-accurate automatic mix, and

frame-accurate to black.

Interfacing

■ Keys can be inverted and masked, and key layers can be adjusted for

layer opacity and edge softness.

■ Selectable priority (which effects key layer appears over the other).

■ Effects Send enables flying switcher luminance/linear keys, chroma

keys, and preset patterns over switcher backgrounds using an external DPM. (Effects Send/Aux Output option required.)

■ Z-Keyª Depth option submodule mounts on Program or Preview

Mixer Board and allows keying from Graphics Factory or Kaleidoscope depth inputs. Depth is adjustable.

■ Optional Borderline

Key Edger submodule mounts on each keyer submodule and adds borders, drop shadows, outlines, or extrusions to key effects. Up to three options may be installed (one per keyer).

■ A single interconnecting cable carries data between the frame and the

control panel.

■ Ports may be programmed for various protocols, baud rates, etc.

1-4

■ Contact-closure GPI interface includes 8 inputs for external triggering

of switcher operations and 8 outputs for switcher triggering of other devices. GPI Outputs can be synchronized with switcher transitions. All GPIs, inputs and outputs, are programmable to be activated from a wide range of switcher events.

■ Sixteen tally relay outputs corresponding to the 16 video/key inputs.

■ Optional Satellite Auxiliary Bus Control Panel can be installed at a

remote location for remote control of Auxiliary Buses.

E-MEM Effects Memory System

Model 1200 Features and Options

Outputs

■ Twenty panel-operated E-MEM

registers store and recall effects and

transitions.

■ Storage of auto transitions as well as effects in a single register. Effect is

recalled first, followed by the specified transition(s).

■ Built-in floppy drive saves E-MEM register contents and switcher

configuration data to floppy disk. Also allows easy loading of software updates from floppy disks.

■ All outputs are optional. Digital output options consist of submodules

that plug into the back of the frame and are secured by screws. Analog output options use existing BNCs on the back of the frame.

■ Optional parallel digital or serial digital video outputs may include

PGM 1, PGM 2, PGM KEY 1, PGM KEY 2, PVW, CLEAN FEED, AUX OUT 1 (SEND 1), and AUX OUT 2 (SEND 2). Submodules containing the output circuits and connectors plug into slots in the back of the frame.

■ Optional Analog Output submodules for the Program and Preview

Mixers deliver PGM and PVW component analog outputs to existing frame BNC connectors. Outputs can be set by the user for YUV, RGB, or Y/R-Y/B-Y format.

Miscellaneous

■ PGM output delay relative to reference input is 63 µs, nominal.

■ A keyboard is required to assign Signal and Crosspoint names and to

access the menu diagnostics. Use either a keyboard acquired from Grass Valley (Marquardt Mini Board Keyboard #EA2452) or a standard PC/AT keyboard. The keyboard requires an adaptor (CA4216) which is included with the Model 1200.

■ Optional look-ahead preview system consists of a Preview Mixer Board

that installs in the bottom slot in the front of the frame.

■ A built-in power supply resides inside the frame. No mounting or

interconnection is required. The power supply provides D.C. power to the frame. It provides .99 Power Factor Correction in compliance with European requirements; prevents peaks from tripping circuit breakers and reduces harmonics.

■ A power supply resides inside the control panel.

■ Automatic 525/625 standard selection based on reference input.

1-5

Section 1 Ñ System Overview

Model 1200 Functional Overview

The Model 1200 architecture (Figure 1-2) consists of a single mix/effects system with two keyers and a downstream keyer. Video inputs selected on the background crosspoint buses enter a pair of program and preview mixers. Video and key inputs selected on the key crosspoint bus are first processed in the keyer circuits.

If effects send mode is off, the keyer outputs go directly to the mixers, and any aux bus selections go directly to the aux outputs. If effects send mode is on, the source and fill outputs of one of the keyers are routed via the aux bus outputs to a DPM.

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

CHROMATTE™

4:2:2/4:4:4 CHROMA

KEY OPTION

CROSSPOINT

MODULE

AUX 1

AUX 2

MIX/EFFECTS

KEYER 1

SECOND

MIX/EFFECTS

KEYER

OPTION

DOWNSTREAM

KEYER

KEYER CARRIER AND

EFFECTS SEND

MODULE

BORDERLINE

KEY EDGE

GENERATOR

OPTION

BORDERLINE

KEY EDGE

GENERATOR

OPTION

BORDERLINE

KEY EDGE

GENERATOR

OPTION

EFFECTS

SEND

AND

AUX BUS

SIGNAL

ROUTING

1-6

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PROGRAM BACKGROUND

PRESET BACKGROUND

Note: Digital video/key inputs and outputs may be either serial or parallel as specified when ordered.

Figure 1-2. Model 1200 Simplified Functional Block Diagram

Model 1200 Functional Overview

The aux buses automatically select the manipulated key and fill inputs returning from the DPM and apply them to the corresponding mixer.

The mixers multiply the processed background and key signals to produce mixed effects video. The effects video enters the downstream key mixers where the DSK signal is mixed over the effects layer. The final output signals then pass through output processing to the various analog, serial component digital, and parallel component digital outputs.

EFFECTS

SEND &

AUX BUS

OUTPUT

OPTION

DIGITAL-TO-ANALOG

CONVERTER

OPTION

PROGRAM

MIXER

EFFECTS

MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

LOOK-AHEAD PREVIEW

MIXER OPTION

DOWNSTREAM

KEY MIXER

PARALLEL PROGRAM

OUTPUT

OPTION

SERIAL

PROGRAM

OUTPUT

OPTION

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

SEND VIDEO OR AUX 1 OUT

SEND KEY OR AUX 2 OUT

ANALOG PROGRAM VIDEO (YUV, RGB, OR Y R-Y B-Y)

VIDEO PGM 1

KEY PGM 1

VIDEO PGM 2

KEY PGM 2

PGM

PST

EFFECTS

MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

DOWNSTREAM

KEY MIXER

DIGITAL-TO-ANALOG

CONVERTER

OPTION

PREVIEW

CLEAN

FEED

OUTPUT

OPTIONS

PREVIEW VIDEO

CLEAN FEED VIDEO

ANALOG PREVIEW VIDEO (YUV, RGB, OR Y R-Y B-Y)

1-7

Section 1 Ñ System Overview

Model 1200 System Specifications

Model 1200 specifications are listed in Table 1-1. The specifications for the Model 1200 are subject to change without notice.

Table 1-1. Model 1200 System SpeciÞcations

Parameter Value

Environmental Characteristics

Operating Ambient Temperature Range

Ambient T emper ature for Speciﬁcations

Relative Humidity 95% Maximum (Non-Condensing)

0 - 40° C (32 - 104° F)

20 - 30° C (68 - 86° F)

Frame Mechanical SpeciÞcations

Depth 24.8 inches (630 mm)

Width Std 19 inches (483 mm)

Height 10.25 inches (260 mm)

Rack Units 6

Weight 80 lbs. (36.3 kg)

Control Panel Mechanical SpeciÞcations

Depth 17.42 inches (443 mm)

Width 29.00 inches (260 mm)

1-8

Height 10.66 inches (260 mm)

Weight 48 lbs. (21.8 kg)

Frame Power SpeciÞcations

Power 400 Watts Maximum 99PFC

V oltage 100-240 VAC autoranging

Frequency 50-60 Hz

Model 1200 System Specifications

Table 1-1. Model 1200 System SpeciÞcations - (continued)

Parameter Value

Control Power SpeciÞcations

Pow er 200 Watts Maximum

Voltage 90-135 VAC & 180-265 VAC (Manual)

Frequency 50-60 Hz

Analog External Reference Input Video

Input Type Analog 525 lines, 60 Hz vertical rate or Analog 625 lines,

Impedance 75 ohms, BNC, Bridging

Input Signal Level 1 volt pp with sync and burst

Return Loss > 36 db to 5 MHz

50 Hz vertical rate

Parallel Digital Input Characteristics

Inputs Per Module 2

Connector 25 Pin Female D Type with Screw Locks

Input Impedance 110 ohms ± 10%, terminating

Autotiming Range ± 24 µS

Maximum Cable Length Without External Equalization

Number Of Bits 10 or 8 (Selectable)

Auxiliary Data Auxiliary data is blanked

15 Meters (50 feet)

Serial Digital Input Characteristics

Inputs Per Module 2 (two) 75 ohm BNC

Return Loss > 15 dB 5MHz to 270 MHz

Autotiming Range ± 24 µS

Maximum Cable Length Without External Equalization

Number Of Bits 10

Auxiliary Data Auxiliary data is blanked

300 Meters (984 feet) using Belden 8281

1-9

Section 1 Ñ System Overview

Table 1-1. Model 1200 System SpeciÞcations - (continued)

Parameter Value

Analog CAV Output Characteristics

Number Of Outputs 1 PGM, 1 PVW (both optional)

Luminance 1.0 Volt pp with sync

Color Difference 350 mV pp bipolar

DC On Output Blanking Level < 50 mV

Output Return Loss > 40 dB to 5 MHz

Output Y/C Timing Error < 10 ns

Number Of Outputs 3

Number Of Outputs 1 PGM, 1 PVW (both optional)

Parallel Digital Output Characteristics

Number Of Outputs Per Module 2

Connector 25 Pin Female D Type with Screw Locks.

Output Impedance 110 ohms ± 10%

Output Amplitude 800 mV pp, terminated

DC Level On Output < 50 mV

Number Of Bits 8 or 10 bits (Selectable)

Maximum Cable Length 15 meters (50 feet)

Auxiliary Data Auxiliary data is blanked

1-10

Model 1200 System Specifications

Table 1-1. Model 1200 System SpeciÞcations - (continued)

Parameter Value

Serial Digital Output Characteristics

Outputs Per Module 2 (two) 75 ohm BNC

Return Loss > 15 dB 5MHz to 270 MHz

Output Amplitude 800 mV pp terminated

DC Level On Output < 50 mV

Rise and Fall Time Between 0.75 ns and 1.5 ns

Maximum Cable Length 300 meters (984 feet) using Belden 8281

Number Of Bits 10 bits

Aux Data Auxiliary data is blanked

Video System Characteristics (Analog Out)

Frequency Response 4 x 3 Aspect: 0.2 dB to 5.5 MHz, -60 dB above 8.0 MHz

Group Delay Error ± 6 ns to 5 MHz

Field Rate Tilt < 0.25%

K Factor (2t Pulse) < 0.25%

K Factor (Bar) < 0.25%

K Factor (Pulse to Bar) < 0.25%

Signal/P-P Noise Ratio > 60 dB unweighted, 5 MHz bandwidth

Line Time Non Linearity < 0.5%

Gain Stability 1%

Y/C Delay ± 5 ns

16 x 9 Aspect: 0.2 dB to 7 MHz, -60 dB above 10.5 MHz

Crosstalk > 50 dB

1-11

Section 1 Ñ System Overview

Table 1-1. Model 1200 System SpeciÞcations - (continued)

Parameter Value

Serial Digital Output Characteristics

Maximum Number Of Inputs 16, parallel or serial digital

Blanking Width 10.222 microseconds (525 line)

Number Of Quantization Bits 10 minimum

Mix Tracking Error 1 LSB

Linearity During Mix Linearity Is Not Affected By Mix

Frequency Response During Mix Response Is Not Affected By Mix

Path Length 63 microseconds, nominal

Rounding Method (Digital Only) Adaptive Bit Reduction™ (Patent Pending)

10.666 microseconds (625 line)

1-12

Introduction

Installation

This section describes the installation and setup of a Model 1200 Digital Switcher. The following main topics are discussed:

■ UnpackingÑpage 2Ð2

■ Information Required Before InstallationÑpage 2Ð2

■ Control Panel InstallationÑpage 2Ð4

■ Signal Processor Frame InstallationÑpage 2Ð6

■ Cable RoutingÑpage 2Ð7

■ Cabling ConnectionsÑpage 2Ð8

■ AC Power Connection and System PowerupÑpage 2Ð16

■ System SetupÑpage 2Ð19

■ Option InstallationÑpage 2Ð34

■ Analog Output Option InstallationÑpage 2Ð36

2-1

Section 2 Ñ Installation

Unpacking

The Model 1200 is packaged in several boxes:

■ One containing the Signal Processor Frame

■ One containing the Control Panel

■ One containing the panel cable, power cord, pushbutton lens chips,

keyboard adaptor cable, and instruction manuals

Check the contents of each box against the packing slip to ensure that you received everything that you ordered. If anything is missing or damaged, contact your supplier immediately.

Information Required Before Installation

Required Tools and Supplies

The following tools and supplies are required but not supplied:

■ A standard PC/AT keyboard or a keyboard acquired from Grass

Valley (Marquardt Mini Board Keyboard #EA2452). The keyboard requires an adaptor (CA4216) which is included with the Model 1200.

■ Assorted Screwdrivers: Flat-blade, Phillips, and T10 TORX (optional)

■ Nutdriver and assorted sockets

■ Drill and 5/32Ó or 4 mm bit for drilling holes to mount the panel

■ Ten #6 screws, nuts, and washers for securing the panel to the desk

■ Four #6-32 machine screws, nuts, and washers for securing the rear

mounting brackets to the panel

■ Four #6 screws, nuts, and washers for securing the rear mounting

brackets to the desk

■ Four suitable screws and nylon washers for securing the frame in the

rack

■ A mechanical lifting device or two or more people to lift the frame

■ Video cables: serial 75 ohm BNC cables and parallel component digital

video cables with male 25-pin D connectors

2-2

■ Connectors and wiring: Male 25-pin D connectors, male 9-pin D

connectors, plus wire and sheathing for assembling data cables

Summary of Installation Specifications

Helpful specifications are summarized below. For additional specifications, refer to the end of Section 1ÐSystem Overview.

■ Frame Dimensions: 24.8Ó (630 mm) deep, 19Ó (483 mm) wide, 10.25Ó

(260 mm) high.

■ Panel Dimensions: 17.42Ó (443 mm) deep, 29.00Ó (736 mm) wide,

10.66Ó (271 mm) high.

■ Frame Power: 400 Watts maximum, 100Ð240 Vac autoranging, 50Ð60

Hz.

■ Panel Power: 200 Watts maximum, 90-135 & 180-265 Vac manual

setting, 50Ð60 Hz.

■ Input Autotiming Range: ± 24 microseconds (336 clocks).

■ Output Delay: 63 microseconds relative to inputs (nominal).

Information Required Before Installation

Safety Requirements

To prevent injury or equipment damage, please read and follow the safety precautions listed below.

WARNING

The fully conﬁgured Model 1200 Signal Processor Frame weighs about 80 lbs (36 kg). Use appropriate equipment to support it during installation.

WARNING

To help protect users against electric shock, ensure that the Signal Processor Frame power supply is connected to earth ground via the ground wire provided in the AC power input cor d.

CAUTION

To prevent static damage to sensitive electronic components, protect the Model 1200 Digital Switcher from static discharge: Touch the Frame before you remove any modules. This helps ensure that any potential difference between your body and the frame is dissipated. If you handle the modules or make any repairs to them, use a grounding strap, grounded mat, and grounded equipment.

2-3

Section 2 Ñ Installation

Control Panel Installation

The control panel consists of a single unit which you can place on a desktop as shown in Figure 2-1 or flush mount in a console as shown in Figure 2-2. Be sure to leave room behind the panel for making cable connections and above the panel for opening the lid.

23.28 in.

(591 mm)

Note: Leave 6 inches (152 mm) of space behind the panel for cable connections.

10.66 in.

(271 mm)

Display

16.57 in. (421 mm)

17.36 in. (441 mm)

17.42 in. (443 mm)

Desk Mount

Lower Panel Surface

Side View

Front View

Splash Panel

2.23 in.

(57 mm)

0.83 in.

(21 mm)

2-4

Tub

27.71 in. (704 mm)

29.00 in. (737 mm)

Figure 2-1. Control Panel Dimensions

20.22 in.

(514 mm)

Control Panel Installation

6.05 in.

(154 mm)

5.31 in.

(135 mm)

Important: Install the mounting brackets on the rear of the panel using four #6-32 screws. Secure the brackets to the desk using four #6 wood screws. The mounting flange at the front is not capable of supporting the entire panel.

Side View

15.40 in. (391 mm)

18.42 in. (468 mm)

19.58 in. (497 mm)

Flush Mount

Wood screws, 10 places, size #6 (customer supplied)

Panel

mounting flange

1.00 in.

(25 mm)

1.02 in.

(26 mm)

27.80 in. (706 mm)

Console Cutout

17.46 in.

(443 mm)

Figure 2-2. Dimensions for Flush-Mounting the Panel in a Console

2-5

Section 2 Ñ Installation

Signal Processor Frame Installation

The Signal Processor Frame (assembly 094900) mounts in a standard 19inch wide equipment rack and requires 6 rack units of vertical space. Install the frame into the rack from the front, and secure it at the front edges with screws and nylon washers (not supplied) and at the back with the supplied rear support plate and bracket. Refer to Figure 2-3 for details.

NOTE:

Leave about 36 inches (914 mm) of open space in front and 18Ó (457 mm) or more behind the equipment rack to allow use of module extenders and to provide easy access to cables. Also leave open space at the sides for cooling air flow.

WARNING

The frame is heavy (about 80 lbs, 36 kg). To prevent injury, use a mechanical lifting device to lift the frame into position. Also secure the equipment rack to the ﬂoor to prevent it from toppling when the frame is installed.

WARNING

The frame is heavy. Use a mechanical lifting device to lift it into position.

24.8 in. (630 mm)

REAR CLEARANCE 18" (457 mm)

REAR SUPPORT BRACKET

Attach to rack rail and insert rear support plate.

17.25 in.

(438 mm)

12.87 in.

(327 mm)

TP0626-06

COOL AIR INTAKE

Allow space on sides for air flow

COOL AIR INTAKE

FRONT CLEARANCE 36" (914 mm)

2-6

RACK-UNITS

10.5 in.

267 mm

19.00 in.

(483 mm)

Standard 19" Rack

EXHAUST AIR

Allow space on sides for air flow

REAR SUPPORT PLATE

Move as needed to fit into rear bracket. Rear support is required.

Figure 2-3. Installing the Signal Processor Frame in a Standard 19-inch Rack

Cable Routing

To ensure that the switcher complies with electromagnetic interference specifications, you must bundle the digital video and key input/output cables together and route them along the rack rails away from the analog video and data cables as shown in Figure 2-4.

Rack Rail

Bundle and route digital video cables along rack rail away from analog video and data cables

Bundle and route analog video and data cables along rack rail away from digital video cables

PARALLEL INPUT MODULE

INPUT 1 J1 INPUT 2 J2 INPUT 3 J3 INPUT 4 J4

INPUT 5 J5 INPUT 6 J6 INPUT 7 J7 INPUT 8 J8

INPUT 9 J9 INPUT 10 J10 INPUT 11 J11 INPUT 12 J12

INPUT 13 J13 INPUT 14 J14 INPUT 15 J15 INPUT 16 J16

AUX OUT 1 J17 AUX OUT 2 J18 PGM OUT 1 J19 PGM KEY OUT 1 J20

CLEAN FEED J21 PVW OUT J22 PGM OUT 2 J23

O U T P U T S

SERIAL INPUT MODULE

SERIAL OUTPUT MODULE

PGM KEY OUT 2 J24

REAR OF FRAME

EXT. REF. INPUT

(LOOPING)

J25 J26

GPI TTY/TALLY

PVW

J36

J37

J38

J28J27

J31J30 J32

GRASS VALLEY GROUP MODEL 1200 VOLTAGE: 100–240VAC ~ CURRENT: 4A FREQUENCY: 50–60HZ

CAUTION

REPLACE FUSE AS MARKED

100V–240V 5A F 250V

5A FUSE & SPARE

MODEM DPM EDITOR

ANALOG

OUTPUTS

PGM

J33

J34

J35

CONTROL

PANEL

–

RISK OF FIRE

Rack Rail

J29

J39

Figure 2-4. Proper Routing of Cables to the Frame

2-7

Section 2 Ñ Installation

Cable Connections

Refer to Figure 2-5 and Figure 2-6 while following the instructions on page 2Ð10 through page 2Ð14, which explains how to cable the required connections for a Model 1200.

Serial and Parallel Component Digital Inputs 1-16

CCIR601 4:2:2 525 or 625 lines

PARALLEL INPUT MODULE

SERIAL IN

INPUT 1 J1 INPUT 2 J2 INPUT 3 J3

PARALLEL IN PARALLEL INPUT MODULE

INPUT 5 J5 INPUT 6 J6 INPUT 7 J7

PARALLEL INPUT MODULE

INPUT 9 J9 INPUT 10 J10 INPUT 11 J11

PARALLEL INPUT MODULE PARALLEL IN

PARALLEL IN

INPUT 13 J13 INPUT 14 J14 INPUT 15 J15

PARALLEL OUT PARALLEL OUTPUT MODULE

U T

AUX OUT 1 J17 AUX OUT 2 J18 PGM OUT 1 J19

SERIAL OUTPUT MODULE

P U

SERIAL OUT

T S

2-8

CLEAN FEED J21 PVW OUT J22 PGM OUT 2 J23

Clean Feed Video

(Program without DSK)

Component Digital Output

Figure 2-5. Model 1200 Frame Backplane

Aux Bus 1 and 2

and Effects Send

Component Digital Outputs

Preview Video

Component Digital Output

Program Video

Component Digital

Outputs

Cable Connections

General Purpose I/FConnector

8 Inputs trigger switcher functions

8 Outputs trigger external devices

PUT MODULE

INPUT 4 J4

PUT MODULE

INPUT 8 J8

PUT MODULE

INPUT 12 J12

PUT MODULE

INPUT 16 J16

PUT MODULE

PGM KEY OUT 1 J20

PUT MODULE

PGM KEY OUT 2 J24

External Reference

Analog Color Black

NTSC or PAL

Video Input

EXT. REF. INPUT

(LOOPING)

J25 J26

GPI TTY/TALLY

MODEM DPM EDITOR

CONTROL

J28J27

J31J30 J32

ANALOG

OUTPUTS

PGM

PVW

J33

J34

J35

GRASS VALLEY GROUP MODEL 1200 VOLTAGE: 100–240VAC ~ CURRENT: 4A FREQUENCY: 50–60HZ

CAUTION

REPLACE FUSE AS MARKED

100V–240V 5A F 250V

J36

J37

5A FUSE & SPARE

PANEL

–

RISK OF FIRE

J29

Panel-to-Frame

Connection

Terminal and

Tally Connector

Provides one tally for

each input. Also accepts

a VT-100 compatible

terminal or pc

Editor Serial I/O Port

Digital Picture

Manipulator

Serial I/O Port

Modem

Serial I/O Port

accepts a modem for

remote service by GVG

Program Luminance Key

Component Digital Outputs

Program and Preview Analog

Component Video Outputs

(Betacam, SMPTE, or EBU-N10)

J38

J39

AC Power Input

100-240 Vac, 50–60 Hz

.99 Power Factor Correction

400 Watts Maximum

2-9

Section 2 Ñ Installation

Control Panel J1 to Frame J29

Connect the supplied panel-to-frame control cable (assembly 054000) from panel connector J1 (see Figure 2-6) to frame connector J29. If installing a DPM-100/700 also, donÕt mix up the control cables because equipment damage can result.

SERIAL COMM

ELECTRONICS FRAME

J6 J7

TO VIDEO

J1 J2

TP0715-05

EXT REF IN

J3 J4

Keyboard Connection

Frame to Control Panel

Video Reference Signal Connection

Connection

(typically Color Black)

Figure 2-6. Rear of Control Panel

Loop through Pair

2-10

External Reference Input to Frame J25/J26 and Panel J3/J4

Connect a reference source of analog color black video to frame connector J25. Then connect a cable from frame connector J26 to panel connector J3 to loop the reference to the panel. Loop the reference from panel connector J4 to another destination or terminate J4 with a 75-ohm precision termination.

The External Reference Input serves as the timing reference for all video and key inputs to the switcher. The switcher senses the line rate (525 or 625) and timing of the reference, and then sets the system for that line rate and automatically times the inputs to match the reference.

Timing of the reference and the input timing window of the video inputs can be adjusted together in the menus. This allows switcher output timing to vary as needed to match other equipment in your system.

Digital Video and Key Inputs J1ÐJ16

Cable Connections

Digital video/key inputs J1ÐJ16 conform to CCIR 601 4:2:2 component digital video standards and may be either serial or parallel, depending on which input options have been ordered.

Input signals may be either 525 or 625 lines but must match the line rate of the External Reference Input in order to function. All inputs are autotimed and do not require timing adjustment as long as they fall within a range of ±24 mircoseconds. Inputs can be mapped to crosspoint columns, manually adjusted for timing, and set for 8 or 10 bits using the Configuration submenus. Refer to instructions on setting up the control panel configuration later in this section for details.

2-11

Section 2 Ñ Installation

Video and Key Outputs J17ÐJ24 and J33ÐJ38

Connect the video and key outputs to any desired destinations. Output delay is approximately 63 µs relative to the inputs. Digital outputs conform to CCIR 601 4:2:2 component digital video standards and may be either serial or parallel, depending on which output options have been ordered. All outputs match the line rate of the reference input (525 or 625). Because outputs are optional, some outputs mentioned here may not be present in your system.

Program (PGM) Output

The Program Output is the main signal output of the switcher. There may be up to three identical Program outputs: PGM OUT 1 J19 (parallel digital), PGM OUT 2 J23 (serial digital), and PGM ANALOG OUTPUTS J33ÐJ35 (analog component).

Program Key Output

The Program Key Output is a luminance key signal derived from the Program video output. There may be up to two identical Program Key outputs: PGM KEY OUT 1 J20 (parallel digital) and PGM KEY OUT 2 J24 (serial digital).

Preview (PVW) Output

The Preview Output, which is available only if the Preview Mixer and a Preview Output option are installed, shows what the switcher output will look like after the next transition occurs. Up to two identical outputs are available: PVW OUT J22 (serial digital) and PVW ANALOG OUTPUT J36Ð J38 (analog component).

Clean Feed Output

The Clean Feed Output J21 (serial digital) consists of PGM video minus the downstream key.

2-12

Aux Bus/Effects Send Outputs

AUX OUT 1 J17 and AUX OUT 2 J18 provide outputs (parallel digital) for Aux Buses 1 and 2, respectively, if the Aux Output option is installed. When Effects Send mode is selected, J17 provides the Effects Send Key Output, and J18 provides the Effects Send Fill Video Output.

Serial Ports J28, J30, J31, J32

The 9-pin serial interface ports may be used interchangeably for connection to a number of serial devices as explained below. Cables and connectors are not supplied, except for the Satellite Aux Panel.

For details about how to set the communication standard, protocol, and baud rate for each port, see the instructions for setting serial port jumpers and for using the terminal to set up serial ports later in this section.

Modem Connection

A modem typically connects to port J30 but can be connected to any port except J29. The communication settings are RS-232, Modem protocol, 9600 baud, 8 bits, 1 stop bit, no parity.

Editor Connection

Cable Connections

An editor typically connects to J32 but can be connected to any port except J28. For a Grass Valley editor, use a standard serial cable and set the port for RS-422, Grass Valley 1200 Protocol, 38.4K baud, 8 bits, 1 stop bit, odd parity.

DPM Connection

A DPM typically connects to port J31 but can be connected to any port except J28. For a DPM-100/700, use a null modem cable and set the port for RS-422, DPM Protocol, 38.4K baud, 8 bits, 1 stop bit, odd parity.

Satellite Auxiliary Panel Connection

The Satellite Aux Panel option can connect to any port except J28. Use the control cable that comes with the option and set the port for RS-422, 200/ 1200 Aux Protocol, 9600 baud, 8 bits, 1 stop bit, no parity. See the end of this section for additional satellite panel installation details.

2-13

Section 2 Ñ Installation

Serial Port Jumper Settings

1. Remove the Control Processor module from the frame.

2. Locate the three sets of jumpers near the back left corner of the module.

3. Set the jumpers for the RS-232 or RS-422 communication standard as

4. Return the module to the frame.

required by equipment connected to the serial ports. The jumpers are labeled to indicate which ports they control (Figure 2-7). Note that TTY port J28 does not have a jumper because it is RS-232 only.

Jumpers shown in factory default positions. Change jumper settings as required by the equipment connected to each serial port.

GPI J27 and Tally J28

GPI (General Purpose Interface) connector J27 (shown in Figure 2-8) provides 8 input relay closures to a common and 8 output relays closures to a common. The outputs allow remote triggering of external devices (such as triggering a credit roll on a character generator). The inputs allow remote triggering of a variety of switcher functions including transitions, E-MEM recalls, Aux Bus Tally Back, and crosspoint map switching.

Using the GPI Inputs and GPI Outputs menus, you can assign which switcher functions are controlled by the GPI inputs and you can assign which switcher events will trigger GPI output relay closures. Input relays require at least a 2-field closure to common, and outputs provide at least a 2-field closure to common.

DPM

RS232 RS422

J12

Figure 2-7. Serial Port Jumpers on the Control Processor Module

EDITOR

RS232 RS422 RS232 RS422

J11

MODEM

J10

2-14

Tally connector J28 provides 16 tally relay closures to a common input corresponding to the 16 video/key inputs. These are typically used to light camera tally lamps when the associated switcher input goes on air.

CAUTION

GPI and Tally relay maximum ratings are 28 volts, 100 mA, resistive load. To prevent relay damage, do not exceed these ratings.

Cable Connections

Parallel Component Digital Video Input/Output

12 D0

13 GND

24 /D1

25 /D0

10 D2

11 D1

23 /D2

9 D3

22 /D3

21 /D4

20 /D5

19 /D6

17 /D8

18 /D7

15 GND

16 /D9

1 CLK

14 /CLK

2 GND

3 D9

4 D8

5 D7

6 D6

7 D5

8 D4

Modem J30 Female 9-pin D

RS232 / RS422

9 RI / GND 8 CTS / RX 7 RTS / TX + 6 DSR / GND

RS232 / RS422

5 GND / GND 4 DTR / GND 3 RX / RX + 2 TX / TX 1 DCD / GND

GPI J27 Female 25-pin D

Control Panel J29 Female 15-pin D

15 +14V Sense + 14 Transmit 13 Transmit +

12 Data Common 11 Data Common 10 Receive +

9 Receive -

8 NC 7 +14V Sense -

6 Panel +9V 5 Lamp +14V

4 Lamp +14V 3 NC 2 NC 1 No Connection (NC)

DPM J31 & Editor J32 Female 9-pin D

RS232 / RS422

9 NC / GND 8 NC / RX 7 NC / TX +

6 NC / GND

RS232 / RS422

TTY/Tally J28 Female 25-pin D

5 GND / GND 4 NC / GND 3 RX / RX+

2 TX / TX -

1 NC / GND

25 NC 24 NC 23 NC 22 NC 21 NC

(COM)—20 GPI OUT0 A1

19 GPI OUT1 A1

18 GPI OUT2 A1 17 GPI OUT3 A1 16 GPI OUT4 A1

15 GPI OUT5 A1 14 GPI OUT6 A1

J27 pin 9

GPI IN 8 A1

GPI Input Connection Example

Editor relay closes and triggers

GPI IN0 A1 (COM)

Editor Relay

switcher GPI input

13 GPI OUT7 A1 12 GPI OUT8 A1 11 GND

10 GND

9 GPI IN8 A1 8 GPI IN7 A1 7 GPI IN6 A1 6 GPI IN5 A1 5 GPI IN4 A1 4 GPI IN3 A1 3 GPI IN2 A1 2 GPI IN1 A1 1 GPI IN0 A1(COM)

(COM)—25 TALLY 0

24 TALLY 1 23 TALLY 2 22 TALLY 3 21 TALLY 4

20 GND 19 TALLY 6 18 TALLY 5 17 TALLY 8 16 TALLY 7

15 TALLY 10

14 TALLY 9

CAUTION: GPI/Tally relays are rated

at 28 V, 100 mA, resistive load.

Do not exceed these limits or

relays may be damaged.

J27 pin 1

Tally Lamp

•

Camera Head

Tally and GPI Output Connection Example

Switcher functions trigger tally/GPI relay

13 TALLY 12 12 TALLY 11

11 TALLY 14 10 TALLY 13 9 GND

8 TALLY 15

7 GND

6 GND 5 TALLY 16

4 GND

3 TERM RX1 A1 2 TERM TX1 A1 1 GND

J28 pin 25

TALLY 0

(COM)

J28 pin 5

TALLY 16

•

Tally InGND

Camera

Control

Unit

closures, which in turn can trigger

events in external devices.

2-15

Section 2 Ñ Installation

Figure 2-8. Model 1200 Connector Pinouts

AC Power Connection and System Powerup

1. Plug the switcher frame power cord into the back of the Model 1200 frame at AC LINE IN connector J39 (Figure 2-9). Connect the other end of the cord to an AC power source between 100 and 240 volts, 50Ð60 Hz.

2. Connect the control panel power cord to an AC power source. Determine whether the power source is either within 90-135 Vac or 180265 Vac and set the manual switch located by the control panel plug to the proper setting. Connect the other end of the cord into the back of the Model 1200 control panel.

WARNING

To prevent danger of electric shock, ensure that the power connector center conductor connects to a proper earth ground.

AC LINE IN

100-240V 50-60HZ

(AUTO-RANGING)

5A FUSE

& SPARE

Fuse Compartment Latch

Pull up and out to check fuse

WARNING!

Earth Ground Conductor

Connect to a proper earth ground to prevent danger of electric shock

Figure 2-9. AC LINE IN Connector J39

J39

3. Verify that all cabling is clear of cooling fans and that there are no loose tools or other metal objects near power supply buses or connections.

4. Check that all Modules and Interconnect Adapters are seated firmly in the frame.

2-16

5. Verify that the Control Panel and Signal Processor Frame AC power cords are properly connected.

AC Power Connection and System Powerup

6. Raise the Control Panel and set the power supply switch to 1 (ON). See Figure 2-10.

On (1)/Off (0)

Switch

Figure 2-10. Control Panel Power Switch

7. Set the power switch inside the frame front cover to the 1 (ON) position. The following LEDs on the front of the frame modules should light:

■ Control Processor Module Ñ DS1 Green +5V

■ SPG Module (on Control Proc) Ñ DS1 525 Green or DS2 625 Green.

■ Crosspoint Module Ñ DS1 Green +5V

■ Keyer Module Ñ DS1 Green +5V, DS2 Green +5VA

■ Mixer Module Ñ DS1 Green +5V, DS2 Green -5.2V

NOTE:

To meet RF/EMI specifications and to ensure proper cooling, the door on

the front of the Signal Processor must be closed.

Maintenance personnel should be familiar with the Control Panel and its usage. For information and reference, see the Model 1200 Operation Manual.

8. In the event of a problem, refer to the Troubleshooting section of this manual. If you are unable to resolve the problem using the Troubleshooting information, contact your equipment supplier for warranty service.

NOTE:

When the Model 1200 is powered up the system software installed at the factory will automatically load. If there are any problems with the software, please refer to Software Installation or Upgrade in the Maintenance section of this manual.

2-17

Section 2 Ñ Installation

Restart

If the system becomes confused or locks up, you can restart it as explained below. The effect you were working on will be lost, but E-MEM contents and conÞguration Þles will remain intact.

MISC MENU

CLEAR

WRK BUF

1. Press the

panel (see Figure 2-11). Then press the in the Miscellaneous Menu to clear the panel.

CLEAR

DP RAM

FACTORY

RESET

[MISC] menu button in the upper left corner of the control

[CLEAR WORK BUFFER] soft button

LAMPSAVER DELAY

= 20 MINUTES

– Warning –

CONFIRM

CANCEL

Exit

OFF

LAMP SAV

ENABLE

SHUT DOWN will halt the frame and require turning the frame power OFF then ON or pressing the frame reset button

SHUT

DOWN

Figure 2-11. Miscellaneous Menu

2. If clearing the panel didnÕt help, press the RESET switch on the Control

Processor module (064911) inside the switcher frame.

3. Finally, if neither of the above steps resolves the problem, turn the

frame and panel power switches off and on again.

LampSaver Panel Sleep Mode

Note that the switcher includes a ÒsleepÓ mode called LampSaver, which is intended to extend pushbutton lamp life-span. When the switcher is idle for an extended period (adjustable) all button lamps turn off. To wake up the switcher, press any button or turn any knob. For details about the LampSaver mode, see the description of the Miscellaneous menu in Section 3 of the Operation manual.

2-18

System Setup

The following procedures allow you to configure the 1200 system to your installation. Using the Configuration menus in the menu display, you can assign sources to the crosspoints, configure the inputs, set output levels, adjust system timing, and set other system parameters. These menu items are accessed through the Configuration menu (Figure 2-12) on the Menu Display subpanel.

CONFG

Menu Pushbuttons and Knobs

The display panel includes pushbuttons and knobs that work interactively with the display menus to control the switcher:

■ The white menu Òhot buttonsÓ at the left of the display activate the top

level menus.

■ The black buttons and knobs surrounding the display are ÒsoftÓ

buttons and knobs that change function with each menu. Labels displayed along the bottom and right edges of each menu indicate the functions of the soft controls. The Ò>Ó display symbol indicates a lower level menu that you can view when you press the associated soft button.

System Params Define Inputs Crosspoints Outputs Timing Ports

GPI Tally

4:3/16:9, Edit Field Dom, System Clock

Define Inputs, Select CK Source, Xpt Legends Map Inputs to Crosspoints Configure Outputs

Switcher Timing Adjustment

Serial Port Configuration

GPI Setup

Tally Relay Output Monitoring and Testing

Figure 2-12. 1200 Configuration Menu Tree

■ The [EXIT] button takes you up one menu level.

2-19

Section 2 Ñ Installation

Configuration Menu

The Configuration menu (Figure 2-13) and its s sub-menus allow you to set up the switcher to meet your requirements. To begin the setup process, press the

[CONFIG] button next to the menu display to bring up

the Configuration menu, which includes the following sub-menus and functions:

[SYSTEM PARAMS>] Ñ4:3/16:9 Picture Aspect, Edit Field Dominance, and

System Clock.

[DEFINE INPUTS>] ÑDefine Inputs, Chroma Key Sources, and Crosspoint

Legends.

[XPT MAP] ÑMap physical inputs to crosspoints.

[OUTPUTS>] ÑConfigure Outputs.

[TIMING>] ÑSwitcher Timing.

[PORTS>] ÑSerial Port Configuration.

[GPI>] ÑGPI Input and Output Setup.

[TALLY>] ÑTally Relay Setup.

CONFIGURATION MENU

SYSTEM

PARAMS > OUTPUTS > TIMING > GPI >PORTS >

DEFINE

INPUTS >

XPT MAP >

Figure 2-13. Configuration Menu

TALLY >

Exit

2-20

System Parameters Menu

Use the System Parameters menu (Figure 2-14) as explained below to set the aspect ratio (ratio of television picture width to height), to set the field dominance for use with an editor, and to set the system clock.

System Setup

1. Press the

[SYSTEM PARAMS>] soft button to display the System

Parameters menu.

2. Use the

[VIDEO ASPECT] soft button to highlight the selection that reads

4:3. Press the button to switch between 4:3 and 16:9.

3. If appropriate, change the Field Dominance using the soft button. Setting Field Dominance to ODD or EVEN helps ensure that edits always take place during a particular color field to prevent color shifts. Some editing systems may require a particular selection; see your editor manual for details. The default is

4. Set the date by selecting the soft knobs to select the appropriate the date is correct, confirm it using the

5. Set the time by selecting Figure 2-14) and turning the soft knobs to select the appropriate

(HOURS) , (MINUTES) , and (SECONDS) . When the time is correct, confirm it

using the

SYSTEM PARAMETERS MENU

[CONFIRM TIME] soft button.

CLOCK

January 1, 1995

8:30 am

[EDITOR FLD DOM]

BOTH fields.

DATE with the [SELECT] soft button and turning

(YEAR) , (MONTH) , and (DAY) . When

[CONFIRM DATE] soft button.

TIME with the [SELECT] soft button (see

YEAR

= 1995

MONTH

= JAN

16:9

4:3

VIDEO

ASPECT

BOTH ODD EVEN

EDITOR

FLD DOM

DATE

CONFIRM

TIME

SELECT

CONFIRM

DATE

Figure 2-14. \System Parameters Menu

DAY

= 1

Exit

2-21

Section 2 Ñ Installation

Define Inputs Menu

From the Configuration menu select [INPUTS>] to display the Define Inputs menu (Figure 2-15). This menu is typically configured during switcher installation. However, you may want to change configurations for different types of production sessions. The Inputs menu allows you to do the following:

■ Give each physical input a descriptive name which is carried forward

■ Attach characteristics to each physical input, such as bit resolution of

■ Designate a video/key pair as the return inputs in systems where an

■ Select 4:2:2 chroma key inputs or full-bandwidth 4:4:4 chroma key

into several other menu levels.

the source, identification of the signal type, and association of key cutters with fills. The signal type tells the switcher whether the input is to be treated as video, shaped video, key, or key with depth.

effects send and return will be used. This information is needed by the switcher for automatic switching of the effects loop.

inputs. Two physical inputs are needed to accommodate a fullbandwidth chroma key signal. The Inputs/4:4:4 CK Sources sub-menu designates those two physical inputs.

■ Associate a four-character legend with each physical input. These

legends appear in the Inputs menus and also in the LED displays that may be installed between the Key and Aux crosspoint pushbutton rows.

Define Inputs

Using the Inputs menu, define each input as follows:

1. Select a Physical Input using the physical input numbers are the same as the jack numbers on the back of the electronics frame.

2. Assign an Auto Select key input to a video fill input using the

KEY SRC) soft knob. Auto Select provides automatic selection of the

associated key input when you select the fill input on the Key crosspoint bus.

3. Enter a Signal Name by pressing the name on the keyboard, and pressing the

4. Using the

[BITS] soft button, identify the input as either an 8 or 10 bit

signal.

(PHYSICAL INPUT) soft knob. The

(AUTO SEL

[CLEAR NAME] soft button, typing a

[ENTER NAME] . soft button.

2-22

5. Using the

[TYPE SELECT] soft button, identify the input type: DEPTH

(depth key signal from a digital picture manipulator), KEY, SHAPED (video shaped by a key), or

VIDEO (unshaped).

System Setup

6. Assign the Effects Return Flag to a video and a key source by highlighting them and pressing identifies that video/key input pair as the Effects Send signals returning from a Digital Picture Manipulator. When Effects Send is on, the switcher will automatically select these inputs.

[EFX RTN FLAG] soft button. This

DEFINE INPUTS MENU

PHYSICAL

INPUT

SIGNAL NAME BITS TYPE

J1 VTR 1 10 VIDEO J2

CHAR GEN VID CHAR GEN KEY

VTR 2 10

VTR 3

J5 J6 R-VTR J7

DPM-700 KEY

DPM-700 VIDEO

CLEAR

NAME

ENTER

NAME BITS

Figure 2-15. Define Inputs Menu

Chroma Key Sources Menu

Display the 4:4:4 Chroma Key Sources menu by selecting [4:4:4 CK

SOURCES>] from the Define Inputs menu (Figure 2-16).

To assign a 4:4:4 video fill to the Chroma Keyer, use the soft knobs:

EFFECTS

RETURN

SHAPED

10 10

KEY

VIDEO

8 10 KEY 10 J7

SHAPED

DEPTH

KEY

SHAPED

VIDEO

TYPE

SELECT

KEY

VIDEO

EFX RTN

FLAG

AUTO

4:4:4 CK

SOURCES >

SEL

PHYSICAL INPUT

AUTO SEL

KEY SRC

XPT DISP

LEGENDS >

= J2

= J3

Exit

1. Select the Physical Input source for channel A by using the

CHANNEL A) soft knob.

2. Select the Physical Input source for channel B by using the

CHANNEL B) soft knob.

4:4:4 CHROMA KEY SOURCES MENU

Figure 2-16. 4:4:4 Chroma Key Sources Menu

4:4:4 CK

CHANNEL A

=J15

4:4:4 CK

CHANNEL B

=J16

(4:4:4 CK

Exit

2-23

Section 2 Ñ Installation

Crosspoint Display Legends Menu

Display the Crosspoint Display Legend menu by selecting [XPT DISP

LEGENDS>] from the Define Inputs menu (Figure 2-17). This menu allows

you to assign a unique name (up to 4 characters) to each physical input. The name will display above the crosspoint column to which that physical input is mapped.

1. Use the

(PHYSICAL INPUT) soft knob to select a Physical Input. The Signal

Name column displays the descriptive name of the selected Physical Input. (Signal Name is created in the Define Inputs menu.)

2. To enter a new Local Name for the highlighted physical input, press the

[CLEAR LOCAL] soft button, type a descriptive name using the keyboard,

and press the

CROSSPOINT DISPLAY LEGENDS MENU

PHYSICAL

INPUT

J1 J2 J3 J4 J5 J6 J7 J8

SIGNAL NAME VTR 1 CHAR GEN VIDEO

CHAR GEN KEY VTR 2 VTR 3

R-VTR

DPM-700 KEY

DPM-700 VIDEO

CLEAR LOCAL

[ENTER LOCAL] soft button.

LOCAL

NAME VTR1

CGV CGK VTR2 VTR3 RVTR DPMK DPMV

ENTER LOCAL

PHYSICAL INPUT

= J5

Exit

2-24

Figure 2-17. Crosspoint Display Legends Menu

Crosspoint Map Menu

The Crosspoint Map menu (Figure 2-18) is selected by pressing the [CONFIG] button and then the [XPT MAP>] button.

System Setup

1. Set the

[[XPT MAP SELECT] soft button to the NORMAL or ALTERNATE

crosspoint map. Using this function, you can define two completely different crosspoint maps and switch between them as desired. If you plan to use only one map, select

2. Use the

3. Use the

(XPT) soft knob to select the crosspoint to be highlighted.

(PHYSICAL INPUT) soft knob to assign a Physical Input to the

highlighted crosspoint. The Signal Name column will display the descriptive name of the selected Physical Input. (Signal Name is created in the Define Inputs menu.)

CROSSPOINT MAP MENU

PHYSICAL

XPT

INPUT

1 BLACK BLACK 2J1 3J4 4 J6 R-VTR 5 J2 CHAR GEN V 6J3 7

9 10 J8 11 12 13 14

J11 J12

MATTE

J16

SIGNAL NAME

VTR 1 VTR 2

CHAR GEN K

DPM-700 VIDEO

DPM-700 KEY

CAMERA 1 CAMERA 2 PAINTBOX

STILL STORE

MATTE

BARS

ALTERNATE

NORMAL

XPT MAP

SELECT

NORMAL .

PHYSICAL INPUT

XPT

= 5

= J2

Figure 2-18. Crosspoint Map Menu

Exit

2-25

Section 2 Ñ Installation

Outputs Menu

From the Configuration menu, select menu (Figure 2-19). This menu allows you to set up signal formats for Model 1200 outputs.

1. Use the

2. Use the

3. Use the

4. Use

OUTPUTS MENU

OUTPUT NAME

PROGRAM 1 10 OFF PROGRAM 2

PREVIEW

CLEAN FEED

KEY OUT 1 KEY OUT 2

AUX 1 AUX 2

PROGRAM DAC

PREVIEW DAC

(OUTPUT)

[OUTPUTS>]

soft knob to highlight the name of the output to be

to display the Outputs

configured.

[BITS RES] soft button to select either 8 or 10 bits to match the bit

resolution of your output destination.

[SHAPING] soft button to turn shaping ON or OFF for that output.

Shaping

ON produces a video output shaped by the key signal and

matted over black. (Shaping for the Program and Preview DAC outputs follows the Program 1/2 or Clean Feed output shaping selection.)

[SIGNAL SOURCE]

key) or

PROGRAM

BITS

RES

10 10 ON 10 10 10

SHAPING

OFF

ON OFF OFF

to select either CLEAN (clean feed; video with no

(video with key).

SIGNAL

SOURCE

PROGRAM

CLEAN

PROGRAM PROGRAM

OUTPUT

2-26

BITS

RES SHAPING

OFF

Figure 2-19. Outputs Menu

CLEAN

PROGRAM

SIGNAL

SOURCE

Exit

Timing Menu

System Setup

Input timing is automatic; however, you can adjust the overall timing manually in the Timing menu (Figure 2-20) to ensure that auto-timing captures all inputs. When you make this adjustment, you are advancing or delaying the Reference input, which causes a corresponding movement of the auto-timing capture window for the primary inputs and also causes a corresponding movement of the switcher outputs.

TIMING

INPUT

J1 J2 J3 J4 J5 J6 J7 J8

To adjust the overall timing, use the timing value, then adjust the

[REF TIMING (FINE)]

[COARSE] soft knob to set a rough

soft knob to fine tune the timing. The maximum timing range is ±330 clocks (a clock equals 69.84 nanoseconds).

REF TIMING (FINE)

6.54

3.49

0.73

0.00

2.18

µS

= +170 CLOCKS

COARSE

Exit

CLOCKS

+28

-56

+170

-210

-300

+250

-40

+80

µS

2.04

4.07

12.36

15.27

21.82

18.18

2.91

5.82

MAXIMUM TIMING RANGE = +/- 330 CLOCKS

INPUT

J9 J10 J11 J12 J13 J14 J15 J16

Figure 2-20. Timing Menu

CLOCKS

+180

-90

-315 +48 +10

-200 +30

13.09

22.90

14.54

2-27

Section 2 Ñ Installation

Ports Menu

The Ports Configuration menu (Figure 2-21) is displayed by pressing the

[CONFIG] button on the main subpanel and then the [PORTS>] soft button.

1. Use the

(PORT) soft knob to highlight the port you wish to configure.

(Ports are listed in the left-most display column.)

2. Use the

(PROTOCOL) soft knob to select the protocol for the port. Protocol

settings for typical equipment are listed below:

PANEL PORT ÑAlready set for 1200 PNL

protocol (RS-422, address 30H,

38400 baud, 8 bits, 1 stop bit, odd parity). Cannot be changed.

TERMINAL (TTY) PORT ÑUse TERMINAL

protocol (RS-232, 9600 baud, 8 bits,

1 stop bit, no parity).

MODEM PORT ÑUse MODEM protocol (RS-232, 2400 baud, 8 bits, 1 stop bit,

no parity).

DPM-100/700 PORT ÑUse DPM protocol (RS-422, address 30H, 38.4 Kbaud,

8 bits, 1 stop bit, odd parity).

EDITOR PORT ÑUse GRASS VALLEY PRODUCTS 1200

(address 30H). Communication is RS-422, 38.4Kbaud, 8 bits, 1 stop bit, odd parity. You may also use

110 or 200 switcher protocol if your editor does not have a

1200 interface, but functionality will be reduced.

AUX SATELLITE PANEL PORT ÑUse 200

or 1200 AUX protocol (RS-422, 9600 baud, 8 bits, 1 stop bit, no parity). Any available port may be used for the Aux Satellite Panel.

3. The

[FACTORY DEFAULT] soft button resets the selected port to its factory-

assigned protocol.

4. If assigning a particular protocol does not yield the correct communication parameters, you may highlight and change those parameters individually. Use the and the

[BITS] , [PARITY] , and [STOP BITS] menu buttons.

[ADDRESS] and [BAUD RATE] soft knobs

2-28

PORT CONFIGURATION MENU

BAUD

PORT PROTOCOL

TTY

TERMINAL

PANEL

MODEM EDITOR

FACTORY DEFAULT

DPM

1200 PNL

MODEM

1200 DPM

ADDR

00 30 00 30

RATE

9600

38.4K 2400

38.4K

Figure 2-21. Ports Configuration Menu

BITS PARITY

NONE

ODD

NONE 8 8

8 7

BITS PARITY

ODD ODD

ODD

NONE 1

STOP

BITS

1 1

STOP

BITS

System Setup

PORT

1 1 1

2EVEN

PROTOCOL

= MODEM

ADDRESS

= 00

BAUD RATE

= 2400

Exit

2-29

Section 2 Ñ Installation

GPI Menus

The GPI Inputs menu (Figure 2-22) is displayed when you press the

[CONFIG] top menu button followed by the [GPI>] soft button. From this

menu, you can view the GPI Inputs or access the GPI Outputs menu (Figure 2-23). Together, these two menus allow you to assign, view, and test the 8 GPI inputs and 8 GPI outputs.

GPI inputs are trigger signals that come from external equipment (via the GPI connector at the back of the frame) and start a specified event in the switcher, such as an auto transition. GPI outputs are trigger signals generated by switcher events that go out via the GPI connector to external devices to cause them to take some action. You can assign events to the GPI Inputs or Outputs as follows:

1. Display the GPI Input or Output menu.

2. Change the event assigned to a GPI using the

(SELECT GPI INPUT/OUTPUT)

soft knob to highlight the desired input or output.

3. Use the

(SELECT EVENT) soft knob to assign an event to the highlighted

GPI.

Two events deserve special mention. The

ALTERNATE XPT MAP selection

allows you to use a GPI input to switch between two different crosspoint maps stored in the Input Map menu. This can be convenient when you have two different uses for the switcher, for example, a live news show and off-line post production. The

AUX BUS TALLY BACK selection uses the GPI as

an input condition that the switcher detects in order to tally the selected aux bus crosspoint. This permits an external DPM to tally the aux buses when aux bus video is on air at the DPM. Aux tallyback can be turned on and off in the Tally menu.

The

[TEST] soft button in the GPI Outputs menu, when set to ON, cycles

through each output, closing its relay for approximately 1/2 second. This allows you to check whether your GPI connections are working properly. When finished testing, set the

[TEST] button to OFF.

2-30

System Setup

GPI INPUTS

GPI

INPUT #

STATE EVENT OPEN

OPEN

CLOSED

OPEN

GPI Inputs are ENABLED

GPI OUTPUTS

GPI

OUTPUT #

STATE EVENT

OPEN

CLOSED

OPEN

EFFECT CUT

EFFECT AUTO TRAN

DISK CUT E-MEM 1 LEARN E-MEM RECALL

AUX 1 TALLY BACK

EFFECT KEY 1 CUT

AUX 2 CROSSPOINT 3

Figure 2-22. GPI Inputs Menu

EFFECT CUT

EFFECT AUTO TRAN

DISK CUT

E-MEM 1 LEARN

E-MEM RECALL AUX 1 TALLY BACK EFFECT KEY 1 CUT

AUX 2 CROSSPOINT 3

SELECT

GPI INPUT

SELECT

GPI

OUTPUTS>

SELECT

GPI OUTPUT

SELECT

EVENT

= 4

EVENT

= 10

= 4

= 10

Exit

GPI Outputs are ENABLED

OFF

GPI OUTPUT

TEST

Figure 2-23. GPI Output Menu

Exit

2-31

Section 2 Ñ Installation

Tally Menu

The Tally menu (Figure 2-24) allows you to test and observe the switcherÕs tally outputs to determine whether your connections to external devices are working. This menu also includes an Back) Aux Bus 1 whenever the effects send Þll crosspoint is tallied and Aux Bus 2 whenever the effects send source crosspoint is tallied. This provides tally back for an external DPM without requiring a tally back input from the DPM. To use this feature, it must be enabled in the Tally menu and assigned as an event to a GPI input in the GPI Inputs menu.

The Tally menu displays a table listing the 16 physical inputs along with the signal name for each input. If a physical input is currently being hightallied, that physical input will be highlighted in the table.

To test a tally output, select the desired input on the PGM bus and watch the Tally menu display to see that the selected input highlights. To test all of the tally outputs, set the cycles each output on for about 1/2 second. When finished testing, set the

[TALLY TEST] button to OFF .

AUX TLY BACK (Aux Bus Tally

ON/OFF selection. When ON, this feature allows use of a GPI to tally

[TALLY TEST] soft button to the ON position; this

TALLY MENU

PHYSICAL

INPUT

BLACK BLACK

J1 J4 J6 R-VTR J2 CHAR GEN V J3 J8

SIGNAL NAME

CHAR GEN K

DPM-700 VIDEO

VTR 1 VTR 2

OFF

AUX TALLY

BACK

PHYSICAL

INPUT

J7 DPM-700 KEY J9 J8

J11 J12

MATTE

J16

OFF

TALLY

TEST

SIGNAL NAME

CAMERA 1 CAMERA 2 PAINTBOX

STILL STORE

MATTE

BARS

Figure 2-24. Tally Menu

Exit

2-32

Installing Panel Pushbutton Lens Chips

After assigning inputs to crosspoints, you can install the supplied lens chips (button labels) in the crosspoint pushbuttons. To remove a pushbutton lens, grasp the pushbutton lens firmly with your fingers and pull the lens off of the button. Then install the lens chip on top of the pushbutton and push the lens back into place. See Figure 2-25 for details.

System Setup

TP0400-202

LENS

LENS CHIP

PUSHBUTTON

Figure 2-25. Pushbutton Lens Chip Installation

2-33

Section 2 Ñ Installation

Option Installation

Options ordered with the switcher are installed and fully tested at the factory and require no installation. However, if you order options at a later time, you can use the instructions that follow to help you install them. After installing the option(s), refer to the previous pages for setup instructions.

Each option consists of a submodule that mates with a motherboard via 50pin header connectors. Screws at the corners of the option submodule secure it in place.

Figure 2-26 shows how to mount the options, and Figure 2-27 shows the locations of the submodule options on the main modules.

Special instructions for Analog Output (DAC: Digital-to-Analog) option installation and the Satellite Aux Panel installation are given on the following pages.

One screw at each corner, typical

Typical Option Submodule

Main PC Board

TP0630-210

Motherboard Connector on Frame Backplane

Typical Input/Output Option

2-34

Figure 2-26. Typical Installation of Submodule and Input/Output Options

064914 SPG Submodule

064911 Control Processor Module

064906 Chroma Keyer Submodule 064905 Crosspoint Module

Option Installation

1 0

Power Supply

J1 to J15

Control Processor Module

064909 Borderline

064908 Key 1 Processor

064912 DAC Option

J3 to J14

SPG

J2 to J16

064909 Borderline 064909 Borderline

064908 Key 2 Processor 064908 DSK Processor

064907 Keyer Module

064913 Depth Option

064910 Program Mixer Module

064913 Depth Option

064910 Preview Mixer Option Module

Crosspoint Module

Chroma Keyer

J2 to J29

J1 to J30

J3 to J31

To J8

J1 to J13

J2 to J19

J4 to J20

J1 to J12

J2 to J10

J4 to J9

J1 to J18

J2 to J15

J4 to J14

J1 to J6 J4 to J7

J3 to J8

DAC Output

To J11

Borderline

Key 1 Proc

J3 to J16

Key 2 Proc

J3 to J11

DSK Proc

J3 to J17

Option

J2 to J5

Key Proc

J1 to J12

Keyer Module

Figure 2-27. Locations of Submodule Options on Main Modules

To J9To J10

Depth

Mixer Module

J2 to J13

J3 to J14

J4 to J15

2-35

Section 2 Ñ Installation

Analog Output Option Installation

Installation of the Analog Output (DAC: Digital-to-Analog) option consists of the following steps, which are explained in detail on the following pages:

■ Mounting the option mezzanine boards on the Program or Preview

Mixer module.

■ Setting jumpers for the desired video output format and other

parameters (if necessary).

■ Fine-tuning analog output signal gain (if necessary).

■ Selecting whether you want the Analog Output to output Program or

Program Clean Feed video (Preview or Preview Clean Feed for a

Preview Analog Output).

Installing the Option Modules

The Analog Output Option consists of two mezzanine boards: the 064912 Analog Output Support module and the 064815 Analog Output module. Install these mezzanines as explained below.

1. Remove the Program or Preview 064910 Mixer module from the switcher frame and place it on an anti-static mat where you can work on it.

2. Install the assembled option mezzanine boards onto the 064910 Mixer module, matching up the connectors on the Analog Output Option Support board to the connectors on the Mixer. See Figure 2-28 for details.

3. Insert the supplied screws through the bottom of the Mixer module into the four spacers that hold the Analog Output option assembly in place. Tighten the screws gently to secure the option.

2-36

DAC

DAC SUPPORT

SPACE FOR

DAC

OPTION

Analog Output Option Installation

PROGRAM

PREVIEW

MIXER MODULE

Figure 2-28. Installing the Analog Output Option (DAC) Modules

2-37

Section 2 Ñ Installation

Setting Analog Output Option Jumpers

The Analog Output Option leaves the factory set to produce the following analog output signal parameters:

■ RGB

■ 0.700V peak signal level

■ No Setup

■ RP125 narrow blanking

To change any of these parameters, follow the steps given below:

Blanking Width and Video Setup

1. On the 064912 Analog Output Support board (the larger mezzanine board), set jumper J6 for the blanking width that you want on the analog output: RS-170 or RP-125.

When the jumper is set to RS-170 (wide blanking), blanking edges follow RS-170 specifications for 60 Hz systems or follow the CCIR 470-2 recommendation for 50 Hz systems. When set to RP-125, blanking is active from end of active video (EAV) to start of active video (SAV), inclusive, as described in SMPTE RP-125.

2. On the 064912 Analog Output Support board (the larger mezzanine board), set jumper J7 for the appropriate setup level on the analog output: Setup (54 mV) or No Setup. See Table 2-1 for the setup requirements of various video formats.

2-38

Analog Output Option Installation

Video Format

1. Remove the 064815 Analog Output mezzanine board (the small mezzanine on top) from the 064912 Analog Output Support mezzanine board. This entails removing four (4) screws around the perimeter of the Analog Output board and gently pulling the board straight up. When you have removed the 064815 Analog Output mezzanine board, turn it over to view the component side.

2. Locate jumpers J5, J6, J9, and J11 on the Analog Output board and set all four jumpers to either a for Color Difference format, or b for RGB format. See Table 2-1 for details.

3. Locate jumpers J4, J8, and J10 on the Analog Output board. Refer to Table 2-1, and set each jumper to the desired analog output format. Note that some formats require installing two jumpers on J8 and J10. Extra jumpers are stored in an inactive socket, J7. If you are changing to a format that uses one jumper at J8 and J10, store the extra jumpers at J7. If you lose a jumper, you can make a suitable substitute from a short piece of 24 gauge solid tinned copper wire.

4. Carefully reinstall the Analog Output board onto the Analog Output Support board, making sure all connector pins match up with their sockets correctly so that no pins become bent. Secure the Analog Output board using the four screws that you removed earlier.

2-39

Section 2 Ñ Installation

Table 2-1. Analog Output Option Jumper Settings

J7 Format Selection

Analog Output

Support

Setup

EBU/SMPTE No Setup a a b c

RGB .714 v No Setup b b b & d b & d

RGB .714 v Setup b c d a & d

RGB .700 v No Setup b a a & d b & d

MII 50 Hz No Setup a a c c

MII 60 Hz No Setup a a c e

MII 60 Hz Setup a c c e

Beta 50 Hz No Setup a a d d

Beta 60 Hz No Setup a b d d

Beta 60 Hz Setup a c d d

J5, J6, J9, J11 Analog Output Format

J4 (Y) Analog Output Format

J8 (R-Y) Analog Output Format

J10 (B-Y) Analog Output Format

5. Press the [Confg] button on the main subpanel and then the [OUTPUTS>] soft button to display the Outputs menu. Use the [SIGNAL SOURCE] soft button to select whether you want the Analog Output to provide a Program Output or a Program Clean Feed Output. If the Analog Output is mounted on the Preview Mixer, the choices are Preview Output or Preview Clean Feed Output. (Clean feed video consists of Program or Preview video without the downstream key.)

2-40

Adjusting Analog Output Gain

The format selection jumpers provide a convenient way to select signal levels that are accurate enough for most monitoring purposes. However, if your application demands precise signal levels, you may need to adjust signal gain using the gain adjustments on the Analog Output mezzanine board:

1. Place the Mixer module on the Module Extender, and select 100% Color Bars as the Program and Preview switcher output.

2. Connect a waveform monitor or oscilloscope to the analog output BNCs on the back of the frame. Terminate the scope or monitor inputs with 75 Ohms.

3. Observe the analog output on the scope or monitor and adjust the Y, R-Y, and B-Y gain controls on the Analog Output board to match the waveform to the desired signal levels shown in Figure 2-29 for color difference signals or Figure 2-30 for RGB signals. The gain adjustment trim pots are accessible through holes in the back of the 064815 Analog Output mezzanine board with the mezzanines installed on the Mixer module.

Analog Output Option Installation

NOTE:

results, adjust Y gain while observing the green output so that the white color bar achieves the specified level. Then observe the red output and adjust R-Y gain for equal level bars having red content; similarly, observe blue output and adjust B-Y gain for equal level bars.

In RGB formats, the gain controls are somewhat interactive. For best

2-41

Section 2 Ñ Installation

OLOR DIFFERENCE FORMATS

RP-125

3AC

EBU/

700

SMPTE

700

BETA 50

––

BETA 60

NO SETUP

714

MII 50

700

MII 60

––

MII 60

NO SETUP

700

R–Y:

B–Y:

Y with Setup:

SYNC

WHITE

YELLO W

CYAN

GREEN

MAGENT A

RED

BLUE

BLA CK

040

3C0 200 040

3C0 200

040

3AC

040

-300

350

-350

350

-350

––

–– –– ––

-300

467

-467

467

-467

––

–– –– ––

–– ––

467

-467

467

-467

714

-286

467

-467

467

-467

––

–– –– ––

-300

350

-350

350

-350

––

–– –– ––

–– ––

324

-324

324

-324

52.5 0

-300

-30

324

-32

324

-32

––

–– –– ––

2-42

NOTE: All voltage levels are in millivolts

Figure 2-29. Color Difference Standard Signal Levels

RGB FORMATS

Analog Output Option Installation

SYNC

WHITE

YELLO W

CYAN

GREEN

MAGENT A

RED

BLUE

BLA CK

RGB 714

NO SETUP

714

0 0

-286

714

0 0

-286

714

RGB 700

700

0 0

-300

700

0 0

-300

700

RGB 714

714

-286

714

-286

714

0 0

-286

NOTE: All voltage levels are in millivolts.

Figure 2-30. RGB Signal Level Standards

0 0

-300

-286

2-43

Section 2 Ñ Installation

Satellite Auxiliary Bus Control Panel Option

The Satellite Auxiliary Bus Panel provides remote control of the switcherÕs auxiliary buses. See Figure 2-31 and the text below for installation.

1. Install the Satellite Panel in the rack or console. See the figure for dimensions.

2. Connect Satellite port J2 to any switcher serial port using the cable supplied with the panel.

3. Set the port jumpers on the switcher Control Processor Module for RS-422. Using the Port Configuration menu, set the Aux Satellite Panel protocol (9600 baud, 8 bits, 1 stop bit, no parity). These settings match the port to the fixed requirements of the Satellite Panel.

4. Select 120 Vac or 230 Vac on the satellite power supply transformer. Then connect the transformer to J1 on the Satellite Panel and to your AC source.

CAUTION

To prevent damage to the Satellite Panel, be sure to set the power transformer for 120 Vac or 230 Vac before you connect the transformer to the panel.

2-44

1.72"

(4.4CM)

Analog Output Option Installation

7.50"

(19.0CM)

17.00"

(43.2CM)

19.00"

(48.3CM)

DC connector

Removable Rack Ears

May be repositioned or removed for flush mounting in a console

AC Connector

4 GND

5 GND

2 RX -

3 TX +

1 GND

J2-Serial Control

Port (male 9-pin D)

Port fixed at RS-422, 9600 baud, 8 bits, 1 stop bit, no parity.

6 GND

8 TX -

9 GND

7 RX +

Figure 2-31. Satellite Aux Bus Control Panel Installation

Power Supply Transformer

120 or 230 Vac selectable, 50–60 Hz, 10 Watts

J1-DC Power input

12–22 Vdc

2-45

Section 2 Ñ Installation

2-46

Introduction

Functional Description

This section describes the internal architecture of the Model 1200 Switcher.

The following main topics are discussed:

■ System OverviewÑpage 3Ð2

■ Frame ModulesÑpage 3Ð10

■ Control PanelÑpage 3Ð38

3-1

Section 3 Ñ Functional Description

System Overview

As you read the overview, please refer to Figure 3-1.

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

SERIAL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

CHROMATTE™

4:2:2/4:4:4 CHROMA

KEY OPTION

CROSSPOINT

MODULE

AUX 1

AUX 2

MIX/EFFECTS

KEYER 1

SECOND

MIX/EFFECTS

KEYER

OPTION

DOWNSTREAM

KEYER

KEYER CARRIER AND

EFFECTS SEND

MODULE

BORDERLINE

KEY EDGE

GENERATOR

OPTION

BORDERLINE

KEY EDGE

GENERATOR

OPTION

BORDERLINE

KEY EDGE

GENERATOR

OPTION

EFFECTS

SEND

AND

AUX BUS

SIGNAL

ROUTING

3-2

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

PARALLEL

INPUT

OPTION

PARALLEL

INPUT

OPTION

PROGRAM BACKGROUND

PRESET BACKGROUND

Note: Digital video/key inputs and outputs may be either serial or parallel as specified when ordered.

Figure 3-1. System Overview

System Overview

EFFECTS

SEND &

AUX BUS

OUTPUT

OPTION

DIGITAL-TO-ANALOG

CONVERTER

OPTION

PROGRAM

MIXER

EFFECTS

MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

DOWNSTREAM

KEY MIXER

PARALLEL PROGRAM

OUTPUT

OPTION

SERIAL

PROGRAM

OUTPUT

OPTION

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

••••••••••••

••••••••••

SEND VIDEO OR AUX 1 OUT

SEND KEY

OR AUX 2 OUT

ANALOG PROGRAM VIDEO (YUV, RGB, OR Y R-Y B-Y)

VIDEO PGM 1

KEY PGM 1

VIDEO PGM 2

KEY PGM 2

LOOK-AHEAD PREVIEW

MIXER OPTION

PGM

PST

EFFECTS

MIXER

DOWNSTREAM

KEY MIXER

Z-KEY™ DEPTH

PROCESSOR

OPTION

DIGITAL-TO-ANALOG

CONVERTER

OPTION

PREVIEW

CLEAN

FEED

OUTPUT

OPTIONS

PREVIEW VIDEO

CLEAN FEED

VIDEO

ANALOG PREVIEW VIDEO (YUV, RGB, OR Y R-Y B-Y)

3-3

Section 3 Ñ Functional Description

Service Philosophy

Because of the surface mount parts, specialized PALS, and multipurpose parts used in the Model 1200, troubleshooting and field repair of the individual printed circuit modules is not practical. This section is designed to help you determine which module in the Model 1200 may be at fault in the event of a problem. You should then contact your equipment supplier or Grass Valley Products Customer Support for module replacement or repair.

Power Distribution

The Model 1200 Signal Processor Frame contains an enclosed power supply which provides all power for the frame. The power supply has been designed for easy removal and replacement in case of a problem. A second power supply in the control panel supplies panel power. Power supply characteristics are as follows:

Frame Input Voltage

■ 100 to 240 volts, 50 to 60 Hz. Autoranging and power factor corrected

Output Voltages

■ To Signal Processor Frame: +5.0 Volts, -5.2 Volts

■ To Fan: +12 Volts

Control Panel Input Voltage: 90 to 135 volts or 180 to 265 volts, 50 to 60 Hz. Manual setting of voltage range.

Output Voltages

■ To Control Panel: -12.0 Volts, -5.0 Volts, +5.0 Volts, +12.0 Volts

3-4

Video Signals

System Overview

Standard System

The Model 1200 uses a 10-bit parallel digital component signal internally with serial digital video converters at input and output. The signal is split into luminance and chrominance channels. If the input signal is 8 bits, the extra two bits are internally forced low.

The Standard Model 1200 system consists of a control panel, a signal processor frame and an interconnect cable. With the standard system the video takes the following paths (see Figure 3-1 on page 3Ð2):

Input ModulesÑEach input goes through a Serial or Parallel Input Module where the signal is converted to the TTL level parallel video that is required by the Model 1200. The clock is also stripped off for timing the video.

Crosspoint ModuleÑAfter going through the Input Module the video is sent to the Crosspoint Module. The Crosspoint Module has several functions:

■ Timing all the inputs

■ Splitting the inputs into luminance and chrominance (video) or key and

depth (keys)

■ Connecting inputs to the internal buses

■ Generating mattes

■ Interfacing to the Chroma Keyer Submodule option

First the signal enters the auto timing circuit which times all the inputs and splits the signals into luminance and chrominance. The video then enters the main crosspoint matrix which assigns each input to a particular input pushbutton on the control panel. The matrix also connects the inputs to the appropriate internal bus. Each crosspoint also has a matte generator built in.

Keyer ModuleÑIf the selected video is a key or aux bus, the video is transferred to the Keyer Module. The Keyer Module does the following:

■ Interfaces to the Key Processor Submodule

■ Does the Effects Send

■ Creates control signals for the wipes (wipe solid generator)

The Effects Send circuit can send the selected video and key from the key process to the aux bus outputs to a DPM. The modified signals are then reentered into primary inputs and routed to the mixer circuit. This allows a DPM to be inserted into the signal path between the Key Proc and the Mixer.

3-5

Section 3 Ñ Functional Description

Key Processor SubmoduleÑThe standard system has a Key Processor Submodule for Key 1 and the DSK. The Key Processor Submodule uses the key source and the key fill video to create a key cutter and video fill that are put over the background video in the mixer.

Program Mixer ModuleÑ The Mixer Module does the following:

■ Combines the video signals, the key signals, and the wipe solid signal

to create the program video

■ Interfaces to the Depth Processor Submodule option

■ Interfaces to Analog Output (DAC) option

The Program Mixer Module uses the video signals, key signals, and the wipe control signals from the Keyer Module to create a video with all the requested elements. A composite key signal is also created and sent to the output. These signals enter the optional output module for conversion to either a serial or parallel digital video signal.

Options

Input and Output ModulesÑThe Input and Output Modules are required to

operate the system but have been made optional to allow the user to select either the serial or parallel version. These options convert the signal levels between the ECL levels of the external signal and the TTL signals used internally in the system. The Serial Input Module also converts the signal between serial and parallel. The Input modules strip the clock off the input signal for timing. The Output Modules reassemble the clock and data.

Chroma KeyerÑThe Chroma Keyer option mounts on the Crosspoint Module. This submodule creates the chroma key and key fill from any selected Key Bus input. The chroma key and key fill are sent to the Keyer Module where they are handled the same as any other key. The chroma key can be sent to any of the three keyers.

Second M/E KeyerÑA second M/E keyer is available optionally. It is identical to the other two keyers and allows a third key to be placed on the video.

BorderlineÑA Borderline option can be mounted on each of the Keyer Modules. The Borderline modifies the timing of the key and inserts a border or shadow on the key.

Preview MixerÑThe Look Ahead Preview Mixer option operates identically to the Program Mixer and provides preview video outputs.

3-6

Depth SubmoduleÑThe Depth Submodule mounts on the Program or Preview Mixer and processes depth inputs to create depth keys.

Analog Output ÑThe Analog Output options for the Program and Preview outputs convert the digital video outputs into a component analog video signal for driving a monitor.

Control Signals

System Overview

The control signals begin in the control panel. The pushbuttons and potentiometers of the control panel are scanned and any change in the status of the controls is noted by the panel controller. If the signal is an analog one (i.e. potentiometers), it is digitized and sent along with the digital signals (i.e. pushbuttons), to the Control Processor Module in the signal processor frame.

The Control Processor Module interprets these signals and sends each of the modules in the signal processing frame the correct signal to do the requested operation. Information which is programmed in the system (e.g. which input is assigned to which pushbutton) is stored on the Control Processor Module and is called upon to interpret the information from the control panel.

Each module and submodule tells the CPU that it is installed and what version number it is. The CPU writes control values only to modules that are installed.

Timing Signals

In the Model 1200, all timing signals are generated in the Sync Pulse Generator Submodule. This submodule plugs into the Control Processor Module. The timing signals are sent to the Control Processor Module where they go through fanout and distribution to the various video modules. Each video module uses them to generate the clocks needed by that module. All video signals are reclocked periodically to avoid video jitter.

Processing Amplifiers

Every video output bus has a Proc Amp (processing amplifier). These can be used for adjusting the gain, offset, and hue of the video. The settings of the Proc Amps are determined by the settings associated with the particular input being used on that bus. If a new input is selected for that bus, the settings for that Proc Amp automatically change to the settings associated with the new input. Proc amp settings are stored on the Control Processor Module.

3-7

Section 3 Ñ Functional Description

Scaling

All of the key, video, and control signals must go Òfrom black to whiteÓ when the signals are sent outside the switcher. Internally the signals are scaled down. Each place where these signals are sent outside there is a Scaling circuit to modify the signals appropriately.

Shaped and Unshaped Video

Shaped video is video that has been multiplied by a key signal to create a partial-raster image that is matted over black. A good example of shaped video is the fill video output of some character generators, which consists of characters on a black matte. Typically, the shaped fill video is also accompanied by a matching key signal that may be used in a keyer to cut a hole in background video into which the already-shaped fill video may be inserted.

The 1200 configuration menus ask you to identify video inputs as shaped or unshaped because the switcher handles those two types of fill video signals differently. For keying with shaped fill video, the keyer multiplies only

the background video with the key signal to cut a hole in the background, and then adds the already-shaped fill video into the hole. For fill video that is not already shaped, the keyer first multiplies both background and the fill video with the key to cut a hole in the background and shape the fill to match the hole. Then the background video and the fill video are added together to create the finished key.

If you incorrectly identify the type of fill video in the Define Inputs configuration menu, selecting shaped when you should select unshaped or vice versa, your keys will have dark lines at the edges or other artifacts. Changing the video type in the Define Inputs configuration menu will correct the problem.

the

3-8

Internal Accuracy

System Overview

The outputs of the Model 1200 system are 10 bit precision. In order to provide this precision, internal processes for arithmetic operations significantly exceed 10 bits.

When the video enters the Model 1200, it is split into luminance and chrominance, each running at 13.5 MHz. The luminance is carried down one bus at the full 13.5 MHz. The Chrominance is carried in alternating bytes (R-Y, B-Y, R-Y) with each of the chrominance alternating bytes carried at a 6.75 MHz rate. The key and depth information is carried in the same way. The key is carried at full rate; the depth information, which is 20 bits wide, alternates between the MSB and the LSB.

On the Chroma Keyer Submodule, the chrominance signal is split. The clock rate is then upsampled to its full 13.5 MHz rate on each bus. This is done by creating new bytes between each of the existing bytes by averaging between the last byte and the next byte.

16 X 9

The Model 1200 can handle 16 X 9 video. The digital video 16 X 9 signal is handled the same as 4 X 3 video. For 16 X 9, the Model 1200 must have the setup reflect that input. The system can not handle 4 X 3 and 16 X 9 video at the same time. When the setup is changed, it changes the counters and the clock frequency on the Sync Pulse Module. The clock frequencies listed in this manual are for standard 4 X 3 digital video.

3-9

Section 3 Ñ Functional Description

Frame Modules

Power Supply

The frame Power Supply Module is a switching power supply that generates the following voltages:

Voltage Current Use

+5 Volts 60 Amps Frame, I/O Modules

-5.2 V olts 12 Amps I/O Modules

+9 Volts 1 Amp not used with Model 1200

Table 3-1. Power Supply Module

+15 V olts 2 Amp not used with Model 1200

+12 V olts 0.5 Amps Fan

The input voltage can be 100 to 240 Volts, 50 to 60 cycles. The power supply is autoranging and power factor corrected.

The power supply along with the fan is enclosed in a removable sled to make it easy to exchange broken power supples. The power supply is not designed to be user serviceable.

The Control Panel has a separate Power Supply, refer to the Control Panel section titled, Power Supply on page 3Ð10.

3-10

Control Processor Module

The Control Processor Module (Figure 3-2) has overall control of the system. All of the control and interface functions originate here. There are two microprocessors and associated circuitry on the module.

The 68302 I/O processor handles the following:

■ The system boot

■ The operating system

■ The external interface

■ The watchdog timer

The 68020 state processor handles the following:

■ The reading and writing between the control panel and the signal

processor frame

■ Calculations necessary to do the video functions

Frame Modules

68881 MATH

COPROCESSOR

BUS

ARBITRATOR

■ Reading system configuration

68020

STATE

PROCESSOR

FIELD LED

BACKGND LED

68302

I/O

PROCESSOR

PARAMETER

EEPROM

RAM

TALLY

RELAYS

SENSING

INTERFACE

OUTPUTS

I/O

FRAME

GPI

To and From Frame Modules and Submodules

GPI

INPUTS

Reference

FIELD LED

BACKGND LED

SYNC

PULSE

GENERATOR

SUBMODULE

Clocks and Syncs

RAM

FLASH

EEPROM

BOOT PROM

MODULE

REVISION

CONTROL

SERIAL BUSES

Figure 3-2. Control Processor Module Block Diagram

PANEL,

TTY, MODEM,

EDITOR, DPMS,

I/O

RS-232 OR RS-422

3-11

Section 3 Ñ Functional Description

System Boot

On a power up or a reset the reset line on the 68302 is pulsed low while the reset line on the 68020 is held low. The 68302 then boots from the boot PROM. The first step in the boot is for the processor to run diagnostics checks. It checks its own RAM, the 68020 RAM, and does a check of the peripherals on both processors.

If any of the diagnostics fail, LED DS9 will light and the system will hang up in a loop trying to access the failed location. This allows easy troubleshooting of errors. If the boot is interrupted by pressing the space bar the system then goes into a mode which allows access to a low level debugger or the loading of a new operating system.

After the diagnostics run, the 68302 looks for an operating system in the flash EEPROM. If a system is found, the system is transferred to the RAM of both processors; then the Model 1200 boots from RAM.

The field LEDs are on during the vertical interval while that processor is reading and writing. The Background LEDs are on while that processor is doing background tasks. Since the background tasks take up most of the processor time, the Background LEDs will be on bright and the field LEDs will be on dim.

When there is activity on any of the serial ports LED DS8 will flash. In addition, there are ten LEDs which indicate activity on particular serial ports by flashing whenever there is transmitted or received data on that serial port.

The parameter EEPROM for the 68020 contains the setup items that do not change much, such as the UART setups, default inputs, default matte settings, and default proc amp settings. These settings are loaded into RAM at bootup.

The Control Processor Module also contains all of the clock fanouts for the Sync Pulse Submodule.

The 68302 can read and write to the 68020 RAM using the bus arbitration circuit.

The Control Panel contains an RDY/EPC-31 Motherboard which communicates with the control processor in the frame through the I/O board.

3-12

Sync Pulse Submodule

The Sync Pulse Generator Submodule (Figure 3-3) does the following:

■ Determines the television standard of the reference input (525, 625)

■ Automatically switches the Model 1200 to the correct standard

■ Has the system clock which is locked to the input reference

■ Generates the timing clocks for the other modules

■ Generates sync for the other modules

■ Has the system delay adjust

There are two main circuits on the Sync Pulse Generator Module, one for creating sync signals from the reference video and one for generating clocks from a phase-locked oscillator. H sync from the sync generator circuit is compared to an H sync created by counting down the clock. The phase difference between these two signals is used to adjust the clock frequency so that the clock remains locked to the input reference.

Frame Modules

Reference

CPU

BUFFER

CPU

I/F

H SYNC

SEP

LOW

PASS

FILTER

CLAMP

PULSE

GEN

DC Offset Feedback

50 / 60

16 X 9 Revision Version

Video Present

525

625

TRI -STATE

PHASE

DETECTOR

CLOCK

DIVIDER

Low Passed Reference

SAMPLE

AND

HOLD

Back Porch

VIDEO

PRESENT

STANDARD

525 LED 625 LED

Ref Comp Sync

ERROR

AMP

4.5 MHZ VCO

FROM

CONTROL

MODULE

Sync Tip

50%

PICKOFF

AND

SYNC

STRIPPER

CLOCK

MULTI

Vertical

Field ID

Comp Sync

13.5 MHz or 18 MHz From CPU

CLOCK

DIVIDER

TRI-PHASE

GENERATOR

CONTROL

MODULE

GENERATOR

VARIABLE

AND

SPG

RESET

DELAY

Field ID

SPG Reset

13.5 MHz SPG

18 MHz

SPG

Figure 3-3. Sync Pulse Submodule

3-13

Section 3 Ñ Functional Description

Sync Pulse Generator Circuit

The reference black signal is first buffered and low pass filtered to remove the subcarrier. From the resulting signal the clamp pulse generator creates burst flag and sync. Signals from the clamp generator are then used as control signals on a sample and hold.

The sample and hold has the low pass reference video on its inputs. When the clamp pulse generator outputs sync, the sample and hold outputs a DC level equal to the video during sync (sync tip) on one output. When the clamp pulse generator outputs burst flag, the sample and hold outputs a DC level equal to the video during back porch on another output. The two signals are averaged to create the sync slicer (50% of sync). The back porch level is sent to the input buffer to set the input back porch to ground.

Burst flag is also used to create a video presence signal which keeps the clamp loop working when there is no video present. This signal is also fed back to the Control Processor Module.

The Reference low pass video and the 50% of sync level are sent to a comparator which strips sync off the input reference to create composite sync. The composite sync is sent to three places: a sync separator, a standard ID circuit, and a reset generator. The sync separator generates H sync. This H sync is sent to the phase detector which locks the clock to the input reference video. The standard ID circuit decides whether the reference is 525 or 625 line video. The reset generator circuit generates vertical sync (reset) and a field ID pulse which time the sync pulse generators. There are programmable delays in the reset path to allow adjustment of system timing.

The sync pulse generators and many of the counters are duplicated in the Sync Pulse Generator Submodule.

Clock Pulse Generator

Clock generation starts with a 4.5 MHz VCO. The output of the VCO is sent to a multiplier/divider circuit which multiplies the clock frequency and then divides it down to either 13.5 MHz or 18 MHz. This clock is then split into 3 phases for TX (transmit clock), BD (board clock), and RX (receive clock). These clocks are sent off the Sync Pulse Generator Submodule to the Control Processor Module, which has all of the clock fanouts.

Some of the clocks re-enter the Clock Pulse Generator Submodule. One of the reentered clocks is sent to a counter which divides the clock down to an H rate. This H signal is compared with the H signal generated by the sync pulse generator. An error signal is sent back to the Clock generator to correct for any timing error between the two H signals.

3-14

Input Modules

Frame Modules

Each of the Input Modules contains the circuitry for two serial or parallel inputs. Both circuits in one module are identical. The circuits convert from the ECL level signal on the cable to the TTL levels that are used in the Model 1200. The video or key goes from the Input Module into the Crosspoint Module.

Serial Input Module

The Serial Input Module (Figure 3-4) has two circuits. The first converts from serial to parallel video and the second converts from ECL to TTL signal levels. The output of the Serial Input Module is a TTL version of Parallel video. The clock is stripped off the serial signal and sent to the Crosspoint Module.

VID_IN 0:9

Serial Video In

SERIAL

DECODER

ECL TO TTL

CONVERTER

VIDCLK

Figure 3-4. Serial Input Module

Parallel Input Module

The Parallel Input Module (Figure 3-5) converts the signal from ECL to TTL and then runs the signal through a latch to align all of the bits. The clock is sent to the Crosspoint Module.

Video 0 : 9

/ Video 0 : 9

VCP

/ VCP

ECL to TTL

CONVERTER

LATCH

VID_IN 0 : 9

V/CLK 1

Figure 3-5. Parallel Input Module

3-15

Section 3 Ñ Functional Description

Crosspoint Module

Autotiming and Chrominance/Luminance Split

On the Crosspoint Module (Figure 3-6) the video first enters a circuit which auto-times all of the input signals to the reference black signal then splits the signal into luminance and chrominance signals. The key signals are handled the same way except that they are split into key and depth.

Auto-timing is done by locating the horizontal interval of the video signal and comparing it to H Blanking generated from the input reference black. This data is sent to the Control Processor Module which then sends delay data to a variable delay. The variable delay uses the data to delay the signal so that all of the video sources are timed.

C Dual Link Channel A

C Dual Link Channel B

27 MHz D1 In

Clk In Clock

HBI

50/60

To / From CPU

D1 DECODER

Phase Count to CPU

BUFFER

Typical 1 of 16 Circuits Shown

Delay Count From CPU

Y, C

DELAY

16 X 16 X 10 X 2

CROSSPOINT

MATRIX

RECLOCK

Y, C, K

Y MASK

K1 DEPTH

K2 DEPTH

Y, C Y, C or K, D

Y, C

Y, C K

Figure 3-6. Crosspoint Module

Chroma Key Xpts

SELECT

LATCH

CHROMA KEY

SUBMODULE

DELAY

Y, C, K

Test Header

RECLOCK

Background A

Background A Key

Background B

Background B Key

Key 1

Key 2

DSK Key

Mask/Depth Key 1

Depth Key 2

Aux 1

Aux 2

3-16

Frame Modules

Crosspoint Matrix

The Crosspoint Matrix (Figure 3-6) consists of 16 inputs by 16 outputs by 10 bits repeated twice, once for luminance and once for chrominance. Not all of the available outputs are used.

The crosspoint matrix is designed so that any of the inputs can be connected to any of the outputs without limits. To accomplish this, all 16 zero bits (from the 16 inputs) go into one crosspoint, all of the one bits go into the next crosspoint, and so on for all of the crosspoints. Then if input one is mapped to output seven in the mapping menu, each of the 20 crosspoints connects input one to output seven. This connects each of the 10 luminance bits and each of the 10 chrominance bits from pin 1 input to pin seven output. The outputs of the crosspoints are then reorganized into video buses.

The Output buses for the Y (luminance) crosspoints are the following:

■ Luminance for Background A and B (2 buses)

■ Key and Luminance for Key 1, Key 2, and DSK (6 buses)

■ Luminance for Aux 1 and Aux 2 (2 buses)

■ Luminance for Chroma Key (1 bus)

The Output buses for the C (chrominance) crosspoints are the following:

■ Chrominance for Background A and B (2 buses)

■ Chrominance for Key 1, Key 2, and DSK (3 buses)

■ Mask/Depth for Key 1 and Depth for Key 2 (2 buses)

■ Chrominance for Aux 1 and Aux 2 (2 buses)

■ Chrominance for Chroma Key (1 bus)

One crosspoint in the matrix takes the output of the Chroma Keyer Submodule and can place it on any or all of the three key buses.

The crosspoints can create a matte for each output. They do this by simply generating the bits required to create a given color.

The Crosspoint Module includes delays on all of the buses so all signals can be timed to arrive at their destination simultaneously. This compensates for the various delays through the system.

3-17

Section 3 Ñ Functional Description

Chroma Keyer Submodule

The crosspoint module sources four buses to the chroma keyer (see Figure 3-7 on page 3Ð20). Two of these carry Y and C signals in standard decoded 4:2:2 format. The other two carry odd and even chroma samples from a full bandwidth 4:4:4 chroma key source. For normal operation of the switcher, the full bandwidth buses are not usedÑthe 4:2:2 chrominance signal is upsampled and substituted for the full bandwidth buses. The upsampling or interpolation is followed by a switch that allows normal or full bandwidth operation. The signal after the switch has U and V samples occurring at 13.5 MHz rate.

These U and V signals describe the chroma content of the input signal. The Hue Correlation circuits compare the chroma content to a reference hue to produce a signal that describes how closely the input signal color is to the reference hue. The closer the hue in the input signal is to the reference hue, the larger the response is at the output of the Hue Correlation circuit (if the reference hue is blue, the output signal will be greatest in the blue areas of the input signal).

Other functions associated with the Hue Correlation circuit are the Aperture Control and the Fringe Control. The Aperture Control determines how sensitive the circuit is to color matching. As aperture is decreased, the circuit requires tighter matching in the hue for the same response. The Fringe Control causes the Hue Correlation circuit to respond to areas in the input scene that have little or no chroma.

The two Hue Correlation circuits on the 1200 chroma keyer are called background and foreground. The Background Hue Correlation circuit is used for background color suppression and for generation of the chroma key signal. The Foreground Hue Correlation circuit affects colors in the foreground that have been polluted by the background. The signal output from the foreground circuit is used only for foreground color suppression and has no effect on the generation of the key signal.

The output of the Background Hue Correlation circuit goes to a multiplier where it can be multiplied to zero by the force mask signal coming from the soft box mask generator. A zero level signal represents no response and results in no suppression or key generation, a ÓblueÒ part of the scene is preserved. After the multiplier, the signal can be processed for noise suppression. The noise suppression is done using a circuit with a coring function that measures the level and if the level does not exceed a set level the output does not respond. Low level noise does not cause suppression or key generation.

3-18

The signal then goes to background suppression. This is done by shaping a matte signal with the signal from the correlation circuit. The shaped matte signal (generally the same color as the background) is subtracted from the chroma keyer input signal. The color background is suppressed to black.

Frame Modules

Key generation is done by scaling the signal from the Background Hue Correlation circuit using a variable gain comparator. The scaled output is now a suitable multiplier control signal, is used for coring, and sent to the key size, position, and softness circuit before going to the keyer module.

The Foreground Hue Correlation circuit output also goes through a force mask multiplier. The force mask multiplier can be controlled independently for foreground and background processing by way of switches. The foreground output signal then goes to a difference circuit that prevents suppression in the foreground from duplicating suppression in the background.

The coring circuit removes noise in the video path by forcing the signal to black when the signal is less than a set level. This process is further qualified by the key signal, which must be non-zero to cause noise suppression.

The AutoCKey circuit works in conjunction with the crosshair generator and the cursor insertion switches. These circuits control the autosetup of the chroma keyer. The crosshair generator inserts a cursor signal into the video path. The cursor is positioned by the control panel joystick. The cursor generator also produces a strobe used by the AutoCKey circuit to capture luminance and chrominance data at the location identified by the cursor. The captured data is read by the 1200 CPU for each field and used to calculate the reference hue, luma suppression level, VGC clip and gain, and shadow clip level. The operator can select an area of the scene using the cursor and cause the system to set up a chroma key based on the video in that area.

The 1200 chroma keyer also has the ability to add a luminance-based shadow to the chroma key. The luminance Y signal is processed in a variable gain comparator to generate a shadow control signal that is combined with the key signal in the NAM. The video outside the key is suppressed to black causing the shadow part of the new background signal to be attenuated.

The key size, position, and softness circuit uses vertical and horizontal filters to reposition, resize and soften key edges. This circuit is composed of field and line delays, filter circuits, and motion detection. When vertical processing is not used, most of the circuitry is bypassed.

The outputs of the chroma keyer are chroma key Y, chroma key C, and the chroma key signal. The output signals then return to the crosspoint module to be routed to one of the three keyers in the system.

3-19

Section 3 Ñ Functional Description

Codd

Ceven

Y C

4:4:4 Interface

& Multiplexer

To Shdw Proc

Interpolation

Limit

Hposition

FGD Chroma

FGD Hue

Crosshair

Generator

Autockey

Circuit

BKGD Hue

Correllation

Circuit

Ref Hue

Aperture

Supp

FGD Hue

Correllation

Circuit

Vposition

BKGD

Color

Suppression

C(U)Bkgd

C(V)Bkgd

YBkgd

Fringe

Control

Multiplier

FGD

Color

Suppression

CPU

Reduction

Multiplier

Noise

Subtract/

Limit

Coring

White

CBlack

Key/Shadow

Key

Size,

Softness,

Position

CK_Y

CK_C

(Outputs to Crosspoint

Module)

CK_Key

TP0715-02

Soft Box

Mask Generator

1-X

"1"

Aperture

Figure 3-7. Chroma Keyer Submodule

3-20

Keyer Module

WIPE SOLID

GENERATOR

From XPT Matrix or Chroma Key

DSK

Key 2

Key 1

From XPT Matrix

Frame Modules

The Keyer Module (Figure 3-8) contains the Effects Send crosspoints, proc amps, and Wipe Pattern Generator. The Keyer Module also holds the Key Processor Submodules and the Borderline Submodules.

PAT_PATCEN T o Mixer Module

BORDERLINE

GENERATOR

Pst Ptn

Aux 1

Aux 2

BORDERLINE

GENERATOR SUBMODULE

KEY PROCESSOR SUBMODULE

SUBMODULE

KEY PROCESSOR SUBMODULE

BORDERLINE

GENERATOR

SUBMODULE

KEY PROCESSOR SUBMODULE

RECLOCK

SCALE

AND

SHAPE

DSK

EFFECTS

SEND

CROSSPOINTS

KEY 2

KEY 1

AUX 1

AUX 2

DELAY

EFFECTS

SEND

OUTPUT

PROC

AMP

PROC

AMP

PROC

AMP

DSK Y, C, K Buses to Mixer Module

RECLOCK

Key 2 Y, C, K Buses to Mixer Module

RECLOCK

Key 1 Y, C, K Buses to Mixer Module

RECLOCK

Aux 1

Aux 2

From XPT Matrix

Depth 1 Depth 2

RECLOCK

DEPTH 1

DEPTH 2

Depth 1 Depth 2

Figure 3-8. Keyer Module

Effects Send Crosspoints

The Effects Send crosspoints constitute a crosspoint matrix which has all of the Key Buses, Aux Bus 1, Aux Bus 2, and the key depth buses as inputs and outputs. This crosspoint matrix will allow any of the three keys and fills to be placed on the Aux 1 and Aux 2 output buses, which can be connected to a DPM for manipulation of the key. The signal returning to the Model 1200 from the DPM re-enters on one of the primary inputs and is routed to the effects send crosspoints on the Aux 1 and Aux 2 input buses. The effects send crosspoints place this signal on any of the key output buses.

3-21

Section 3 Ñ Functional Description

Wipe Pattern Generator

The Wipe Pattern Generator (Figure 3-9) produces a single wipe pattern output which is used two places:

■ A 16-bit signal is sent to the Mixer Module for wipe transitions

■ A 10-bit signal which has been Clip and Gain adjusted goes to each of

the Key Processor Submodules to create the Preset Pattern Key

The Wipe Waveform Generator creates digital horizontal and vertical ramps. From these ramps the Wipe Solid Generator creates the various wipe patterns by modifying them according to various mathematical formulas. Counters divide the horizontal and vertical ramps into segments to produce pattern multiplication. The pattern outputs consist of a full 16bit signal which is sent to the Wipe Module to be used for wipe transitions and a 10-bit version which is sent through a proc amp to the Preset Pattern Generator on the Keyer Module.

H_RST

V_RST

CLKBD

WIPE

WAVEFORM

GENERATOR

WIPE

SOLID

GENERATOR

DELAY

Wipe Pattern

RECLOCK

CLKTX

Pattern Old

CPU Address and Data

TRI-CLIP

AND

GAIN

RECLOCK

Pattern New

Figure 3-9. Wipe Pattern Generator

Effects Send Output

This circuit converts the effects send signals from the switcherÕs internal format to standard digital video.

3-22

Key Processor Submodule

The Key Processor Submodule (Figure 3-10) generates the following signals:

■ Preset pattern key with or without border

■ Luminance key with or without mask

■ Linear key with or without mask

The functions of some Key Processor circuits change according to the type of key being generated. Luminance and linear keys are handled identically except for Tri Clip and Gain settings. The Additive Mixer and its input from the Select circuit are used in the following ways:

■ Lum key, unmasked, unshaped video: shape video with key

■ Lum Key, unmasked, shaped video: not used

■ Lum Key, masked, unshaped video: shape video using masked key

■ Lum Key, masked, shaped video: unshape video during mask

Frame Modules

Key Signal

Pattern Old

Pattern New

RECLOCK

■ Preset Pattern Key: Pattern New is used to shape the video

Pattern Old and Pattern New are used to generate the preset pattern key. Pattern Old is also used to create a mask on non-preset pattern keys. The Borderline option and its associated Tx reclocks and selects are used to put a border or shadow on any of the keys.

TRI CLIP AND

GAIN

CPU Data (Key Opacity)

SUBTRACT

MULTI

SELECT

DELAY

INVERT

DELAY

RECLOCK

BORDERLINE

RECLOCK

SELECT

OPTION

RECLOCK

Key Signal

Video

RECLOCK

PST PTN BORDER

MIXER

PROC

AMP

Figure 3-10. Key Processor Submodule

ADDITIVE

MIXER

SELECT

RECLOCK

Key Video

3-23

Section 3 Ñ Functional Description

Preset Pattern Keys

Pattern New is the outer edge of the new video and Pattern Old is the inside edge of the old video. The space between (if any) is the border. The positions of these signals are determined by the Keyer Module.

The Pattern Old signal passes through the Tri Clip and Gain circuit and gets selected by the multiplier. The key opacity multiplier uses data from the CPU to determine how opaque the key signal should be. The key signal is then delayed, and if the Borderline is not used, the signal is sent to the Mixer Module. If the Borderline is used, the signal is sent to the Borderline Submodule where the key is modified. The signal is then sent to the Mixer Module. Pattern Old is also selected by the Select circuit and sent to the additive mixer where it is used to shape the video.

The preset pattern border is created by subtracting the Pattern Old and Pattern New signals. The resulting signal enters the Preset Pattern Border Mix circuit which creates the border matte. The border then goes to the Additive Mixer.

The video signal is first sent through a Proc Amp before going to the Additive Mixer.

The Additive Mixer combines the video and border using the Pattern Old signal to create the video with the border inserted. The video signal is then sent to the Mixer Module if the Borderline is not used. If the Borderline is used, then the video goes through the Borderline Submodule before it is sent to the Wipe Module.

Luminance, Linear, and Chroma Keys

The Key signal and the Pattern Old signal enter the Clip and Gain circuit. If there is no mask applied to the key, only the Key signal exits the Clip and Gain. If there is a mask applied to the key, both the Key and the Pattern Old exit. The multiplier then multiplies the Key and Pattern Old to produce the masked key.

The masked Key signal enters a multiplier with opacity data from the CPU to give the key the desired opacity. If there is no Borderline, the signal is delayed and sent out to the Mixer Module. If Borderline is selected, the signal is sent to the Borderline circuit and then out to the Mixer Module.

The signals being sent to the Additive Mixer depend on several factors. See the previous page for details.

The video first passes through a Proc Amp and is then applied to the Additive Mixer where the key and video are combined. If the Borderline Submodule is used, the video passes through the Borderline Submodule before it is sent to the Mixer Module.

3-24

A Chroma Key is handled the same as a Linear Key.

Borderline Submodule

A Borderline Submodule option (Figure 3-11) can be mounted on each of the Key Processor Submodules. The purpose of the Borderline is to expand the key horizontally and/or vertically to put a border or shadow around it.

The Horizontal Key Stretch circuit will, under the control of the CPU, delay the key one pixel and then do a Non Additive Mix (NAM) between the original signal and the delayed signal. This process is repeated until the key is widened enough for the required border. At the same time the Vertical Key Stretch is widening the key vertically.

The stretched key is sent to a NAM. At the same time the key is sent to the adjustable 3 line delay where the key is delayed the required number of lines and pixels. The delayed key signal is also sent to the NAM. The output of the NAM is the difference between the delayed key and the stretched key, which is the border.

The border is sent to the Border Opacity Mixer which, under the control of the CPU, sets the opacity of the border. The border signal then is sent to both the Border Mixer and the Combiner circuit. The Combiner circuit combines the key signal and the border signal and outputs the resultant key signal.

Frame Modules

CPU Data

HORIZONTAL

Number of Pixels

KEY

STRETCH

The key video goes through a delay and into the Border Mixer. The Matte Generator generates the border matte which is sent to the border Mixer. The Border Mixer then combines these signals with the output from the border opacity mixer to create a key video with border.

Key Video

Number of Lines

VERTICAL

KEY

STRETCH

Y and C

NAM/

SELECT

GENERATOR

What Color

DELAY

MATTE

SUBTRACT

Amount of Opacity

BORDER

BORDER OPACITY

MIXER

Key Video with Border

COMBINE

Key Signal

ADJ

3 LINE

DELAY

Figure 3-11. Borderline Submodule

DELAY

3-25

Section 3 Ñ Functional Description

Program Mixer Module

The Program Mixer Module (Figure 3-12):

■ Generates the Clean Feed Out

■ Generates the Program Out

■ Processes the depth information

■ Has the Transition Generator

Bkgnd A

Bkgnd B

Key 1 Video

Key 2 Video

DSK Video

DSK Key

PROC

AMP

PROC

AMP

Key 1 and 2 Depth

Key 1, 2, and DSK

Transition Center

MIXER

COMBINER

DEPTH

SUBMODULE

Border Matte Combiner

MIXER

Border Matte

Priority Depth

Clean Key Depth

DSK Depth

Wipe Pattern Key 1 Key Key 2 Key Background A Key Background B Key

KEY AND DEPTH

OUTPUT

PROCESSING

OUTPUT

PROCESSING

DSK Mixer

MIXER

TRANSITION

GENERATORS

AND

KEY PROCESSING

Key Out A

Key Out B

Clean Feed Video

OUTPUT

PROCESSING

Program Video

Clean Key

Dsk Key

Key 1 Mix Key 2 Mix Background A

Background B

Border

3-26

Figure 3-12. Program Mixer Module

Grass Valley 1200 Installation

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Symbols and Their Meanings

Warnings

Cautions

North American Power Supply Cords

International Power Supply Cord

EMC Regulatory Notice

Federal Communications Commission (FCC) Part 15 Information

5389/336/EEC EMC Directive

EN500081-1

EN55022

Introduction

Section Contents

Model 1200 Physical Description

Model 1200 Features and Options

Inputs

Effects System

Keyers

Interfacing

E-MEM Effects Memory System

Outputs

Miscellaneous

Model 1200 Functional Overview

Model 1200 System Specifications

Introduction

Unpacking

Information Required Before Installation

Required Tools and Supplies

Summary of Installation Specifications

Safety Requirements

Control Panel Installation

Signal Processor Frame Installation

Cable Routing

Cable Connections

Control Panel J1 to Frame J29

External Reference Input to Frame J25/J26 and Panel J3/J4

Program (PGM) Output

Program Key Output

Preview (PVW) Output

Clean Feed Output

Aux Bus/Effects Send Outputs

Serial Ports J28, J30, J31, J32

Modem Connection

Editor Connection

DPM Connection

Satellite Auxiliary Panel Connection

Serial Port Jumper Settings

GPI J27 and Tally J28

AC Power Connection and System Powerup

Restart

LampSaver Panel Sleep Mode

System Setup

Menu Pushbuttons and Knobs

Configuration Menu

System Parameters Menu

Define Inputs Menu

Define Inputs

Chroma Key Sources Menu

Crosspoint Display Legends Menu

Crosspoint Map Menu

Outputs Menu

Timing Menu

Ports Menu

GPI Menus

Tally Menu

Installing Panel Pushbutton Lens Chips

Option Installation

Analog Output Option Installation

Installing the Option Modules

Setting Analog Output Option Jumpers

Blanking Width and Video Setup

Video Format

Adjusting Analog Output Gain

Satellite Auxiliary Bus Control Panel Option

Introduction

System Overview