Ball Electronic Display Division TD Series Manual de usuario

SERVICE

MANUAL

(

Video

Monitor

Series

Electronic

Display

Division

5-017-1015

Aug.

31,

1979

Rev.

BALL ELECTRONIC DISPLAY

DIVISION

P.O.

BOX

43376

• ST.

PAUL,

MINNESOTA

55164

•

TELEPHONE:

{6121

786-8900

•

TWX:

910-563-3552

TABLE

CONTENTS

SECTION

QENERAL

INFORMATION

1.1

General

Description

1.2

Electrical

Specifications

1.3

Mechanical

Specification

1.4

Human

Factors

Specification

1.4.1

Radiation

1.4.2

Power Requirements

1.4.3

Requirements

INSTALLATION INSTRUCTIONS

2.1

General

2.2

Space

2.3

Power

2.4

Location

2.5

Cable

Termination

2.6

Initial

Turn-on

Procedure

III

CIRCUIT

THEORY

3.1

General

Information

3.2

Video

Amplifier

3.3

Sync

Processing

3.4

Vertical

Deflection

3.5

Horizontal

Deflection

3.6

Automatic

Frequency

Control

3.7

Low

Voltage

Power Supply

ADJUSTMENT

AND

MAINTENANCE

4.1

General

4.2

Shutdown

Resistor

Replacement

4.3

Vertical

Circuit

Adjustment

4.4

Horizontal

Circuit

Adjustment

4.5

Chassis

Removal

4~5.1

TD23

Model

4.5.2

TD12

and

TD15

Models

4.6

CRT

Replacement

4.6.1

TD23

Model

4.6.2

TD12

and

TD15

Models

WAVEFORMS

5.1

General

PARTS

LIST

6.1

General

6.2

Ordering

Parts

6.3

Returning

Parts

6.4

Component Replacement

Parts

Affecting

Product

Safety.

6.5

PWA

Identification

6.6

Monitor

Parts

List

IM1015

PAGE

1-1

1-2

1-3

2-1

2-2

'Z 1

"}-.L

3-1

3-2

3-3

3-5

4-1

4-3

4-4

5-1

6-1

6-2

IM1015

ILLUSTRATIONS

FIGURE

PAGE

2-1

Loop

Through Videq

Connection

between

Monitors

2-1

2-2

Front

and

rear

view

TD23

Monitor 2-3

2-3

Front

and

rear

view

TD12

and

TD15

2-4

4-1

Test

Equipment

lead

placement

for

selecting

R212

4-2

5-1

Circuit

board

component

location

and

intercabling

diagram

5-4

6-1 Schematic.

series

6-11

IMl015

Section

GENERAL

INFORMATION

1.1

GENERAL

DESCRIPTION

The

monitor

solid

state

unit

for

use

industrial,

commer-

cial

and

data

display

fields,

where

reliability

and

high

quality

video

reproduction

are

desired.

Applications

such

remote

moni-

tor

for

computer

terminals

and

airline

flight

arrival/departure

displays

are

ideally

suited

this

unit.

1he

monitor

has

single

plug-in

circuit

board

with

silicon

transistors.

The

unit

equipped

with

differential

input

for

composite

video

signal

minimize

hum

and

other

extraneous

pick-

long

video

feed

cables.

The 23

inch

cabinet

available

with

without

studs

for

versatile

mounting

configuration.

1.2

ELECTRICAL

SPECIFICATIONS

VIDEO

AMPLIFIER

Input

impedance

Input

connector:

Input

level:

Low

Frequency

tilt:

restorer:

Gray

scale:

Bandwidth:

Rise

and

Fall

time:

SYNCHRONIZATION

Internal:

Vertical

retrace

Blanking:

Line

rate/Field

rate:

RETRACE

TIME

Horizontal:

Vertical:

DISPLAY

Picture

tube:

Center

resolution:

Geometric

Distortion:

Hi-Z;

75~

Low

Rear

panel

switch

for

Hi-Z

75~

termination.

UHF-looping

.30

2.0

p-p

composite

less

with

window

input

signal

Keyed

backporch

clamp

Linear

response

stairstep

signal

17 . 5

MHZ

@ - 3db

Less

than

nanoseconds

Composite

video

only

yes

525/60

625/50

(with

AC)

llseconds

600

llseconds

inch

rectangular

800

lines

minimum (P4

FT-L no

panel)

Less

than

active

raster

height.

1-1

IMI015

POWER

SUPPLY

Input

voltage:

Input

Power:

Output

voltage

ENVIRONMENTAL

Temperature:

Humidity:

Altitude:

100

240

AC,

50/60

46W

Nominal

+57

VDC

short

circuit

protected

+18

nominal

Operating

range:

50C

55 0C

ambient

Storage

range:

-40oC

65 0C

ambient

80%

(non-condensing)

Operating:

10,000

ft.

tor

age

14,

00C

ft.

1.3

MECHANICAL

SPECIFICATION

Front

panel

controls:

Remaining

controls:

MODEL

TD23M

TD12C

TD12M

HEIGHT

18"

9-1/16"

10-5/16"

Off/On,

brightness

and

contrast

controls

Internal

DIMENSIONS

(NOMINAL)

WIDTH

23-1/16"

11-7/16"

12"

DEPTH

WEIGHT

(lbs)

18-1/2"

12-1/2"

12-13/16"

1.4

HUMAN

FACTORS

SPECIFICATION

1.4.1

Radiation

This

monitor

complies

with

the

Federal

Regulation

for

Radiation

required

the

Radiation

for

Health

and

Safety

Act

1968 and as implemented

title

21,

subchapter

The

Code

Federal

Regulations.

These

regulations

place

certain

requirements

manufacturers,

dealers,

and

distributors

products

which can emit X-rays under

some

conditions

operation

failure.

Critical

components (shaded

the

schematic) must be

replaced

with

EDD

approved components.

Title

the

code

Federal

Requlations,

part

1002

specifies

that

dealers

and

distributors

must keep

sales

records

for

all

electronic

products

which

are

subject

the

Federal

Radiation

Safety

Performance

Standards

permit

tracing

specific

television

recievers

;;pecific

purchasers.

(RefJ.

HEW

publication

(FDA)

78-8044,

Federal

Record Keeping Requirements).

1-2

IM1015

Certification

compiiance

with

radiation

regulations

shown

by a

label

attached

each

monitor.

The

user

responsible

for

labeling

his

product

similar

fashion

making

the

DHEW

label

easisly

visible

from

the

outside

the

enclosure.

The

regulations

state

that

"This

(certification)

information

shall

provided

the

form

tag

label

permanently

affixed

inscribed

such

product

legible

and

readily

accessible

view

when

the

product

fully

assembled

for

use

-:"

Each

monitor

supplied

with

extra

label

attached

the

CRT.

The

user

will

remove

this

label

and

use

stated

above.

1.4.2

Power

Requirements

The

monitor

designed

operate

and meet

radiation

requirements

when

operated

within

the

respective

input

power

specifications.

Radiation

testing

performed

the

maximum

specified

input

voltage

for

powered moni-

tors.

1.4.3

Requirements

The

monitor

designed

meet:

standard

796,

Printed

Wiring Board

standard

478,

Standard

for

Electronic

Data

Processing

Units.

standard

114,

Standard

for

Office

Appliances.

1-3

2.1

GENERAL

Section

INSTALLATION

INSTRUCTIONS

IMl015

This

section

describes

the

installation

procedures

the

series

monitor.

also

contains

information

the

space,

power

and

cable

termination

requirements

the

monitor.

2.2

SPACE

The TD-23

monitor

occupies

area

inches

high,

23-1/16

inches

wide

and

18-1/2

inches

deep.

2.3

POWER

The

external

power

requirements

the

unit

105-130

VAC,

50-60Hz,

watts

nominal.

The

power

cable

supplied

with

the

unit

the

standard

3-wire

grounding

type.

2.4

LOCATION

The

monitor

shall

not

located

area

that

restricts

air

flow

around

the

unit.

Nor

shall

placed

near

any

heat

generating

sources;

such

heating

vents

and

heat

radiating

equipm~nt

since

this

may

cause

the

monitor

overheat.

2.5

CABLE

TERMINATION

The two

video

input

connectors

and

the

rear

panel

are

wired

parallel.

The

video

cable

connected

the

video

input

connector

and

terminated

positioning

the

video

termination

switch

the

75Q

position.

the

video

signal

looped

through

the

monitor

other

monitors,

the

video

termination

switch

set

the

Hi-Z

position,

except

the

last

monitor,

where

set

the

7SQ

posiiion,

see

figure

2-1.

MONiTOR

NO. I

INPUT

VIDEO

SIGNAL

MONiTOR MONiTOR

NO.2 NO.3

VIDEO TERMINATION SWrTCH

MONITORS

NO.

AND

NO.2

SET

HI-Z

POSITION;

MONITOR

NO.3,

SWITCH

SET TO

75.(1

POSITION.

Figure

2-1

Loop

through

video

connection

between

monitors.

2-1

IM1015

ground

loop

hum

apparent

the

picture,

placing

the

differential

input

switch

the

position

will

remove

any

hum

induced

the

cable

between

the

monitor

and

the

equip-

ment

which

causing

it.

ground

loop

hum

not

apparent

the

picture,

leave

the

differential

input

switch

the

OFF

position.

2.6

INITIAL

TURN-ON

PROCEDURE

The

monitor

was

tested

and

aligned

before

shipment,

and

should

not

require

further

adjustment

after

installation.

The

following

procedure

recommended

for

turning

the

monitor

for

the

first

time:

2-2

(1)

(2)

Connect

the

monitor

a 120

VAC,

60Hz

power

source.

Connect

video

cable

video

input

connector

rear

chassis.

(3)

Set

the

video

termination

and

differential

input

switches

the

desired

position.

(4)

Place

power

switch

position.

Adjust

Brightness

and

Contrast

controls

for

desired

effect.

On-Off

Brightness

Control

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Usu-s£lMC£AlU

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Figure

2-2

Front

and

Rear

view

TD-23

monitor.

IMlOlS

Contrast

Control

2-3

I~1015

Figure

2-3

Front

and

rear

view

TD12

and

TD15

2-4

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