Multidyne Electronics CG-200 Instruction Manual

M

ULTIDYN

E

I

NNOVATIONS IN TELEVISION TESTING & DISTRIBUTION

INSTRUCTION MANUAL

CG-200 Series

VIDEO CHARACTER
GENERATOR

MULTIDYNE Electronics, Inc.

Innovations in Television Testing & distribution

1-(800)-4TV-TEST, 1-(800)-488-8378

191 FOREST AVENUE
LOCUST VALLEY, NY 11560-2132 USA
(516)-671-7278 FAX [phone]

September 23, 2003

MULTIDYNE, CG-200 is a registered trademarks of MULTIDYNE Electronics, Inc.

Copyright 1997 MULTIDYNE Electronics, Inc., Locust Valley, New York. Printed in the United States of America. All

Rights Reserved. Contents of this publication may not be reproduced in any form without the written permission of

MULTIDYNE Electronics, Inc.

This product was designed and manufactured in the

UNITED STATES of AMERICA

TABLE OF CONTENTS

INTRODUCTION 4

OPERATION 4

SYSTEM RESET 4
INPUT CONNECTIONS 4
OUTPUT CONNECTIONS 4
POWER REQUIREMENTS 4
USER CONTROLS 5
MENU OPERATION 5

VIDEO OPTIONS> 5
CANCEL: 5
VERT INT: 5
MOTION BAR: 5
CURSOR: 5
CLEAR SCREEN> 5
CLEAR ALL: 6
TONE OPTIONS> 6
TONE SWEEP: 6
TONE AMPLITUDE: 6

CIRCUIT DESCRIPTION 6

CALIBRATION 6

SPECIFICATIONS 7

DRAWINGS 7

CG-200 R
CG-200 PCB M

EAR PANEL LEGEND FOR THE MULTIDYNE UTIL-200 TRAY 7

ECHANICAL 7

Instruction Manual, CG-200 INTRODUCTION 4

INTRODUCTION

The MULTIDYNE CG-200 is designed as a universal and modular video character generator. Features

include fifteen columns by seven rows of upper and lower case alpha-numeric text, sixteen battery backed pages,
one line of vertical interval identification, motion graph, automatic bypass to program video upon power failure, test
signal input, and RS-232 port for remote terminal control. Options include day, date, time stamp and countdown with
audio clicks. The CG-200 Series of plug-in cards operate in the MULTIDYNE UTIL-200 Modular Utility Tray, as
well as industry standard trays from other manufactures.

OPERATION

The operation of the CG-200 is designed to be simple and require almost no adjustments. The CG-200
cards plug into the MULTIDYNE UTIL-200 Modular Utility Tray from the front. The ejector lever on the top edge of
the card is used to remove it from the frame.

SYSTEM RESET

To reset the entire system, hold down the SPACE and PAGE buttons. Any programmed messages will not

be lost after a system reset.

INPUT CONNECTIONS

The Program Video Input is BNC connector J3 on the rear of the UTIL-200 Tray (see page 7 for drawing).
The Program Input is terminated internally or externally through the video output when bypassed. The External or

Test Signal input is BNC connectors J 9 and J10. The External Input is a high impedance loop-through input. The
External input must be terminated into 75 Ohms. The Tray connectors may be labeled differently on trays of other

manufacturers.

OUTPUT CONNECTIONS

The Video Output is BNC connector J4 on the rear if the UTIL-200 Tray (see page 7 for drawing). It has a
source termination of 75 Ohms. The optional audio tone and countdown audio click outputs are located on the
tray back panel. The audio outputs J1 and J2 are balanced with a source termination of 50 Ohms. A BNC to XLR
adapter connector is included with the unit convert the BNC audio outputs J5 and J6 to XLR. The tone level is
typically set for +4 dBm at the factory.

POWER REQUIREMENTS

The CG-200 plugs into the MULTIDYNE UTIL-200 Utility Tray, the Grass Valley 8500/8800 Trays as well as
industry standard trays. The UTIL-200-AC operates from 100 to 240 VAC with two dual redundant power supplies
each with a separate line cord. The UTIL-200 is available with a 48 VDC Telco Power supply. The PWR 1 and
PWR2 LEDs glow green when the unit is powered up and operating properly. If the unit is plugged into an active
outlet and the POWER LED does not glow, check the internal fuse.

NOTE

Use only a 1.3 Amp replacement fuse for 110 VAC operation. Use only a

0.6 Amp replacement fuse for 230 VAC operation.

Instruction Manual, CG-200 OPERATION 5

USER CONTROLS

LEFT (S1) – Left Cursor
RIGHT (S2) – Right Cursor
UP (S3) – Up Cursor
DWN (S4) – Down Cursor
SPACE (S4) – Overwrite with a space
PAGE (S6) – Scroll to the next of sixteen pages of text.
BYP (S7) – Turn characters and bypass of program video on and off. The Left or Up position is characters

ON. The Right or Down position is full bypass to program video and characters OFF. This should be the on air
setting.

INPUT (S8) – Selects the Program or External/Test as the output signal. If the BYP switch is set in
bypass position, the Program Video is directly connected to the video output regardless of the INPUT switch
settings.

MENU OPERATION

By pressing the LEFT and RIGHT keys simultaneously the function menu will appear. Use the UP and
DOWN buttons to page through the menu item and press the LEFT or RIGHT button make a selection.

CANCEL – Exit without change.

VIDEO OPTIONS>

CANCEL:

Exit without change.

VERT INT:

The last line of half height text will be inserted into the vertical interval. Any other text on the screen will
remain unless it is erased manually. If this option is selected again, the vertical interval information will
return to the last line on the screen.

MOTION BAR:

A graph in motion will appear at the bottom of the screen. This is useful to determine if the TBC has
malfunctioned during otherwise still video. Press any button to exit the motion graph mode.

CURSOR:

Turn cursor on and off.

CLEAR SCREEN>

CANCEL:

Exit without change.

Instruction Manual, CG-200 CIRCUIT DESCRIPTION 6

CLEAR ALL:

CAUTION!!!! – This function clears the 16 message pages in memory and sets all selected

functions to default. All programmed messages and setting will be lost.

CLEAR ALL must be performed after the battery(B1) or the RAM(U4) are replaced.

TONE OPTIONS>

CANCEL:

Exit without change.

TONE SWEEP:

The unit will automatically sweep through the following frequencies: 125Hz, 250Hz, 400Hz, 1KHz, 2KHz,
4KHz, 8KHz, 10KHz, 12.5KHz, 16KHz and 20KHz. If you wish to maintain a single frequency, press the
SPACE key during the tone you wish to maintain. Press the SPACE key again to continue sweeping. To
exit TONE SWEEP, repeat the menu selection.

TONE AMPLITUDE:

While in sweep mode, the UP and DWN keys will scroll through the following amplitude settings, 0dB, +4dB
and +8dB.

NOTE!

CIRCUIT DESCRIPTION

The CG-200 CPU KERNELL SCHEMATIC shows the CPU (U1), the program ROM (U2), the program latch
(U3) and the battery backed RAM (U6). U10 is the watch dog timer as well as the switch to battery backup at power
down, U4 and U5 provide a precise delay to the black character mask so that the white characters are centered on
top of the mask and U9 is the actual character generator.

The CG-200 ANALOG INTERFACE schematic shows the I/O connector (J2), the bypass relay (K1), which
will bypass to program video when power fails or from the BYP switch (S8). U11 is the SYNC separator and U16 is
the video and character mixer.

CALIBRATION

For all calibration procedures, the CG-200 requires a card extender, which may be purchased from
MULTIDYNE. There are only four simply adjustment that can be made:

R7 - Horizontal character position, set to center text on screen.
R17 - Video Gain, set for 100 IRE.
R38 - Character Gain, set for 70 IRE.
R13 - Audio Gain, set counter-clockwise to maximum.
R12 – Audio Level Adjust; set for output level displayed on screen.

NOTE

Please be sure that the video input and video outputs are both terminated into 75 Ohms and that the

audio outputs are terminated into 600 Ohms.

Instruction Manual, CG-200 SPECIFICATIONS 7

SPECIFICATIONS

INPUT

Nominal Levels

Video ...........................................................................................................................................................1 Vp-p

VIDEO OUTPUT

Levels.............................................................................................................................................................. 1 Vp-p

Source termination......................................................................................................................................75 Ohms

AUDIO OUTPUT

Levels................................................................................................................................0, +4, +8 dBm, selectable

Source termination......................................................................................................................................50 Ohms

PERFORMANCE

Differential Gain................................................................................................................................................<0.2%

Differential Phase............................................................................................................................................. <0.2 °

Audio Amplitude Accuracy....................................................................................................................+/- 0.25 dBm

Power consumption, MAX............................................................................................................................<2 Watts

Temperature range..........................................................................................................................................0-50°C

CHARACTERS

Character Columns ................................................................................................................................................15

Character Rows........................................................................................................................................................7

Pages of Text .........................................................................................................................................................16

Vertical Interval ID, Characters..............................................................................................................................15

DRAWINGS

CG-200 Rear Panel Legend for the MULTIDYNE UTIL-200 Tray

CG-200 PCB Mechanical

Instruction Manual, CG-200 DRAWINGS 8

CG-200 Rear Panel Legend for the MULTIDYNE UTIL-200 Tray

VIDEO OUT PROG IN

for GRASS for GRASS

8500/8800 8500/8800