RCA Trans Vista 100 Bedienungsanleitung

Technical

Manual

The

CTC

Color

Chassis

Trans

Vista

100

Technical

Manual

The

CTC

Color

Chassis

Prepared

RCA

Sales

Corporation

Subsidiary

RCA

Corporation

Product

Performance—

Technical

Training

600

North

Sherman

Drive

Indianapolis,

Indiana

46201

Trademark(s)

ARegistered

Marca(s)

Registrada(s)

1970

RCA

Sales

Corporation

All

rights

reserved.

part

the

material

protected

this

may

reproduced

utilized

any

form

without

written

permission

from

owner.

Price $

4.50

First

Edition

7032

Punted

U.S

•

" "

ell•

4re*

•

CONTENTS

General

Description

and

System

The

Video

System

Horizontal

Deflection

Vertical

Deflection

First-

Level

Maintenance

Shop-

Level

Maintenance

FOREWORD

The

CTC

chassis

represents

the

first

a "

new

breed"

RCA

all-

solid-state

color

television

receivers.

This

particularly

true

from

the

standpoint

servicing.

The

extensive

use

plug-in

circuit

modules,

eleven

all,

tuner

which

may

exchanged

without

the

need

for

realignment

the

coupling

circuit

the

amplifier,

solid-state

high-

voltage

quadrupler,

which

essentially

another

module,

and

the

use

plug-in

transistors

makes

possible

correct

most

failures

with

very

little

servicing

effort.

the

preparation

of this

manual

less

than

the

usual

space

was

devoted

circuit

description

for

three

reasons.

First,

some

the

circuitry

bears

resemblance

earlier

RCA

chassis.

This

true

the

tuner,

AFT,

and

horizontal

deflection

system,

which

are

similar

their

counterparts

either

the

CTC

chassis;

and

the

sound

module

which

almost

identical

the

one

used

the

CTC

41, 42,

and

chassis.

Second,

integrated

circuits

are

used

the

and

chroma

circuits,

and

stage-

by-

stage

analysis

these

systems

has

little

value

the

service

technician,

since

many

active

devices

are

packaged

single

unit.

Third,

since

most

repairs

can

accomplished

most

readily

module

replacement,

rather

than

replacement

single

component,

intimate

knowledge

the

function

each

part

module

not

essential

the technician.

Complete

schematic

diagrams

the

various

circuits

were

used

instead

partial

simplified

diagrams.

This

will

allow

the

technician

identify

all

components

particular

circuit

without

tracing

the

interconnecting

lines

used

the

complete

instrument

schematic

which

bound

the

back

of this

manual.

Whenever

possible

the

location

components

the

diagrams

located

the

text

indicated;

however,

the

complete

instrument

schematic

should

consulted

verify

component

locations

and

intermodule

connections.

Servicing

information

contained

this

manual

divided

into

two

chapters.

The

first

these

discusses

techniques

and

procedures

for

rapid

servicing

either

the

home

the

shop.

The

final

chapter

goes

into

greater

detail

and

considers

those areas

servicing

which

require

the

facilities

and

equipment

normally

found

only

the

service

shop.

GENERAL

DESCRIPTION

The

RCA

CTC

chassis

fourth-

generation

solid-state

color

receiver,

employing,

for

the

first

time,

plug-in

modules

for

most

the

essential

functions.

The

CTC

chassis,

introduced

1968,

the

first

the

RCA

solid-state

color

receivers;

however,

vacuum-

tube

high-

voltage

rectifier

was

used

that

instrument.

order

introduc-

tion

was

the

RCA

CTC

chassis (

the

G-2000),

which

was

released

1969.

This

instrument

re-

tained

most

the

circuits

used

the

CTC

40,

but

several

significant

changes

were

incorporated

its

design.

The

electronically

tuned

VHF

tuner

and

signal-

seeking

UHF

tuner

the

CTC

are

im-

portant

advances

the

state

the

electronic

art,

and

because

their

spectacular

perform-

ance

they

tend

overshadow

two

other

important

advances.

These

are

solid-state

high-

voltage

rec-

tification,

using

voltage

quadrupler,

and

motor-

less

remote

control,

volume,

tint,

and

color.

The

RCA

CTC

chassis

represents

the

third

gen-

eration

solid-state

color

receivers

and

corn-

prises

many

the

basic

circuit

configurations

the

CTC

40,

upgraded

many

respects,

plus

the

high-

voltage

quadrupler

and

motorless

remote

control

volume,

tint,

and

color,

from

the

CTC

47.

The

CTC

natural

outgrowth

these

prede-

cessors;

however

number

radical

changes

have

been

made.

Two

these

are

perhaps

equal-

significant.

These

are

modular

construction,

and

the

extensive

use

integrated

circuits.

Other

ad-

vances

include

active

side-

pincushion

correction,

transformerless

vertical

output,

matrixing

the

color-

difference

and

luminance

signals

before

they

are

fed

the

kinescope,

significant

changes

the

convergence

circuits,

and

110

color

kinescope.

These

will

described

this

book,

but

before

proceeding

circuit

descriptions,

overall

examination

the

chassis

order.

Figure

1-1

block

diagram

the

RCA

CTC

chassis.

total

eleven

plug-in

modules

used;

brief

description

each

module

follows:

UHF

ANTENNA

—11e.

VHF

ANTENNA

UHF

TUNER

VHF

TUNER

4.5-

MHz

SOUND

MODULE

MAH

HORIZ

AFC

HORIZ

OSC

HORIZ

TRIGGER

MODULE

200

SOUND

DETECTOR

AUDIO

PREAMP

MODULE

MAK

SIGNAL

PIX

AGC

AFT

VIDEO

PREAMP

BLACK

AND

WHITE

VIDEO

SYNC

MODULE

MAG

VERT

SWITCH

VERT

PREDRIVER

VERT

DRIVER

SWEEP

AND

REGULATOR

0401-T402

MODULE

MAB

LOW-

VOLTAGE

RECTIFIERS

AUDIO

DRIVER

AUDIO

301

AUDIO

OUTPUT

0103

CH MODULE

MAC

CHROMA

ROMA

BANDPASS

REFERENCE

OSC

ACC

AFPC

MODULE

MAL

FIRST

VIDEO

AMP

SECOND

VIDEO

AMP

SYNC

SEPARATOR

VERTICAL

fie

VERTICAL

OUTPUT

Q101-0102

SIDE

CORRECTION

HORIZ

DEFLECTION

SCR

101-

SCR

102

FLYBACK

XFMR

KINE

SCREEN

SUPPLY

11*-

220 (

VIDEO)

+160 (

HORIZ)

+77

(

VERT)

m- +

30 (

AUDIO)

a.. +

30 (

DIST)

B-

VIDEO

YOKE

CURRENT

PHUOLRSIEZ

CHROMA

MODULE

MAE

REF

ICHROMA

DEMODS

R-

G Y

MODULES

MAD

ARE

USED—

ONE

FOR

EACH

COLOR

VIDEO

OUTPUT

AMPLIFIERS

CONVERGENCE

BOARD

RETRACE

H.V.

QUADRUPLER

PULSE

FOCUS

BLEEDER

CONVERGENCE

BOARD

800

AGC

GATE

in.

BURST

GATE

HORIZ

AFC

800

YOKE

CURRENT

SPEAKER

RED

VIDEO

BLUE

VIDEO

KINESCOPE

GREEN

VIDEO

CATHODES

CONVERGENCE

ASSEMBLY

YOKE

CURRENT

•

Ile.

VERT

YOKE

SIDE

PINCUSHION

AMP

HIGH

VOLTAGE

FOCUS

VOLTAGE

SCREEN

VOLTAGE

KINE

SCOPE

HORIZ

YOKE

Figure

1-1

Functional

Diagram

the

RCA CTC

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