RCA Victor 730TV1 User manual

PBOTOFACT*

Fold

RCA

VICTOR

MODELS

73OTV1,

73OTV2,

(Ch.KCS27-1)

VERT.

HORIZ.

HOLD

BRIGHTNESS

CONTRAST

CONT,

CHANNEL SELECTOR

FINE

TUNING

VOL

CONTTONE

SW.

ON-OFF

SW.

RCA

VICTOR

MODEL

750TV1

RADIO

TUNING

TRADENAME

RCA

Victor,Models

730TV1,

730TV2(Ch.

KCS

27-1)

MANUFACTURER

RCA

Victor

Dlv.,

RadioCorp.

America,Camden,

New

Jersey

TYPE

SET

AM-FM-Phono-TV

Receiver

TUBES

Thirty

POWER

SUPPLY

115

Volts-60

Cycles

TUNINGRANGE

Channels

thru

(44-88MC,

174-216MC)

540-1600KC

88-108MC

RATING:

2.44

Amp.

Radio

Amp.

117

Volts

117

Volts

Alignment

Instructions

BlockDiagram

DisassemblyInstructlonsl

Horlz.

Osc.

LinearityAdjustments

Parts

List

and

Description

13,

Photographs

Cabinet-Rear

View

Capacitor

Identification

(Radio)

Capacitor

Identification

(TV)

Chassis-Top

View(Radio)

INDEX

6,7,8

Photographs

(continued)

14,15,16

11,18

Chassis-Top

View

(TV)

Tuner

Resistor

Identification

(Radio)

Resistor

Identification

(TV)

Trans.,

Inductor

and

Alignment

Identification

Schematic

(TV)

Schematic

(Radio)

Tube

PlacementChart

Voltage

ResistanceMeasurements

3,23

12,17

4,9

19,26

HOWARD

SAMS

CO.,INC.

•

Indianapolis

Indiana

"Thelisting

ofany

available

replacement

part

hereindoes

not

constitute

inany

case

recommendation,warranty

guaranty

Howard

Sams

Co.,

Inc.,

tothe

quality

and

suitability

such

replacement

part.

The

numbers

these

parts

have

been

compiled

from

information

furnished

Howard

Sams

Co.,

Inc.,

bythe

manufacturers

ofthe

particulartype

replacement

part

listed."

"Reproduction

use,without

express

permission,

editorial

pictorialcon-

tent,

inany

manner,

prohibited.

patent

liability

assumed

with

respect

the

useofthe

informationcontainedherein.Copyright

1949

Howard

Sams

Co.,

Inc.,

Indianapolis

Indiana,

S.of

America.Copyright

urtder

In-

ternational

Uniorv.

All

rightsreservedunderInter-AmericanCopyright

Union

(1910)

Howard

Sams

Co.,Inc."Printed

inU.S.of

America

DATE

9/494918-7

SET#70

FOLDER

THE

COOPERATION

OFTHEfc

RECEIVER

MAKES

POSSIBLE

5U46

«"

RECW.E

-Y

BLK.-BRN.

*-l

BLUE

®4f

PHOTOFACT

STANDARD

NOTATION

SCHEMA

©Howard

Sams

Co.,Inc.1949

PAGE

THE

MANUFACTURER

THIS

iLE

BRING

YOU

THIS

SERVICE

BIAS

CLAMPER

®6ATB

CHASSIS

TOP

VIEW

*HD)

'LAIOC/

siaaow

UO13IA

VDM

.•;---

\•

CHASSIS

BOTTOM

VIEW-TRANS.,

INDUCTO

PAGE

CTOR

AND

ALIGNMENT

IDENTIFICATION

PAGE

\O;

XCT\

BAGS]

3Rt3

VIDCOIF

BOTTOM

VIEW

OUT

PUT

TOP

VIEW

TUBEPLACEMENTCHART

'LAIOCZ

siaaow

ALIGNMENT

INSTRUCTIONS

ALIGNMENT

INSTRUCTIONS-READ

CAREFULLY

BEFOREATTEMPTINGALIGNMENT

receiver

tobe

aligned

with

picture

tube

removed,

recommended

also

remove

the

6SN7GT

(V15)

hori-

zontal

oscillator

tube

eliminate

high

voltage

shock

hazard.

When

complete

alignment

tobe

performed,

can

most

conveniently

done

the

orderoutlined;

SOUND

ALIGNMENTUSING

DUMMY

ANTENNA

.05MFD

SIGNAL

GENERATOR

COUPLING

High

side

(Grid)

6AU6

(V10)

Low

side

chassis,

High

side

(Grid)

6BA6

(V9).

Low

side

chassis.

SIGNAL

GENERATOR

FREQUENCY

21.25MC

(Uranod.)

CHANNEL

SIGNALGENERATOR

AND

VTVM

CONNECT

VTVM

Probe

thru

Meg

Polnt^

Common

chassis.

Probe

thru

Meg

Point<E»

Common

chassis,

Probe

thru.J.

Meg

Point

<£>

Common

chassis.

ADJUST

A1.A2

A3,A4

SOUND

ALIGNMENTUSING

SIGNAL

GENERATOR

Connect

the

synchronized

sweep

voltage

from

the

signal

for

horizontaldeflection.

DUMMY

ANTENNA

.05MFD

SWEEP

GENERATOR

COUPLING

High

side

(Grid)

6BA6

(V9).

Low

side

chass

SWEEP

GENERATOR

FREQUENCY

21.25MC

(IMC

Sweep

)

MARKER

GENERATOR

FREQUENCY

21.25MC

CHANNEL

REMARKS

Detune

Al.

Adjust

A2for

maximum

deflection.

Adjust

for

zeroreading.

positive

and

negative

reading

will

obtained

either

side

ofthe

correct

setting.

Adjust

for

maximum

deflection.

AND

OSCILLOSCOPE

generator

tothe

horizontal

Input

ofthe

oscilloscope

CONNECT

SCOPE

Vert.

Amp.

Polnt«a

Low

side

chassis.

Vert.

Ami.

Polnt^p

Low

side

chassis.

ADJUST

A3,A4

A1.A2

VIDEO

ALIGNMENT

REMARKS

60%

sweep

rate

usedshunt

R50

with

5600S.

Adjust

A3andA4for

maximum

amplitude

and

symmetry

per

Fig1.

Adjust

A2for

maximum

amplitude

and

stralghtness

diagonal

line

asper

Fig

Adjust

Also

21.25M2

marker

center

diagonal

line.

Continue

with

step

Before

starting

video

alignment

connect

VTVM

between

Junction

ofR25andR26and

chassis.

Adjust

contrast

control

give

VTVM

reading

-3V.

Leave

contrast

control

this

setting

for

entire

video

alignment.

Remove

6J6

local

oscillator

tube

preventerroneousIndications.

DUMMY

ANTENNA

SIGNAL

GENERATOR

COUPLING

High

side

toun-

grounded

tube

shield

floating

over

mixer

tube

(V2).

Low

side

chassis.

SIGNAL

GENERATOR

FREQUENCY

21.25MC

27.25MC

22.

SMC

23.9MC

26.0MC

24.

SMC

CHANNEL

CONNECT

VTVM

Probe

Point

GJ>

Common

Chassis.

ADJUST

A5,A6

AID

All

REMARKS

Adjust

for

minimum

deflection.

Adjust

for

minimum

delfectlon.

(Some

models

maynot

have

this

trap.)

Adjust

for

maximum

deflection.

nn IIn

IIn

nnn

OVERALL

VIDEO

RESPONSE

CHECK

Connect

the

synchronized

sweep

voltage

from

the

signal

generator

tothe

horizontalInput

ofthe

oscilloscope

for

horizontaldeflection.

DUMMY

ANTENNA

SWEEP

GENERATOR

COUPLING

High

side

toun-

grounded

tube

shield

floating

overmixertube

(V2).

Low

side

chassis

SWEEP

GENERATOR

FREQUENCY

24MC

(10MC

Sweep)

MARKER

GENERATOR

FREQUENCY

21.25MC

23.

CMC

25.0MC

25.75MC

27.25MC

CHANNEL

CONNECT

SCOPE

Vert

Amp

Point

<^>

Low

side

chassis.

ADJUST

REMARKS

Check

response

curve

obtained

scope.

necessary.,

slightly

re-

touch

thru

Allfor

proper

wave

shape

and

placement

markers

per

Fig

10.

AMP.

MIXER

ALIGNMENT

Before

starting

alignment

connect

VTVM

junction

ofR25andR26and

chassis

and

adjust

contrast

control

give

VTVM

reading

-IV.

Leave

contrastcontrol

this

setting

for

entire

alignment.

Connect

1000MMFD

capacitor

from

pin1 of

6AG5

1st

Video

Amp

(V4)

chassis.

DUMMY

ANTENNA

Two

120S

carbon

res.

SWEEP

GENERATOR

COUPLING

Across

antenna

ter-

minals

with

1202

resistor

each

generator

lead.

SWEEP

GENERATOR

FREQUENCY

177MC

(ion;

Sweep)

183M3

(10MC

Sweep)

189M3

(10MC

Sweep)

195MC

(10MC

Sweep)

201MC

(10MC

Sweep)

207fC

(10MC

Sweep)

213MC

(10MC

Sweep)

MARKER

GENERATOR

FREQUENCY

175.25MC

179.75MC

181.25M3

185.75MC

187.25MC

191.75MC

193.25MC

197.75M3

199.25MC

203.7SMC

205.25MC

209.75MC

211.25MC

215.75MC

CHANNEL

CONNECT

SCOPE

Vert

Amp

thru

10KS2

Point

<!fft

Low

side

chassis

ADJUST

A13,A13

A14,A15

REMARKS

Adjust

for

approximately

flat

top-

ped

response

curve

asper

Fig

Markers

must

above

705S.

Keep

slug

pairs

same

relative

posi-

tions.

Check

tosee

that

response

isas

above.

Slight

readjustment

A12,

A13,A14,A15

maybe

necessary

obtain

optimum

response

forall

high

band

channels.

12.

PAGE

ALIGNMENT

INSTRUCTIONS

CCONTJ

13.

14,

15.

16.

17.

18.

DUMMY

ANTENNA

SWEEP

GENERATOR

COUPLING

SWEEP

GENERATOR

FREQUENCY

85MC

(10MC

Sweep)

79MC

(10MC

Sweep)

69MC

(10MC

Sweep)

63MC

(10MC

Sweep)

57MC

(10MC

Sweep)

MARKER

GENERATOR

FREQUENCY

83.25MC

87.75MC

77.25MC

81.75MC

67.25MC

71.75MC

31.25MC

65.75MC

55.25MC

59.75MC

CHANNEL

CONNECT

SCOPE

ADJUST

A16,A17

A18,A1£

REMARKS

Adjust

for

approximately

flat

topped

response

curve

asper

Fig

Markers

must

above

70%.

Keep

slug

pairs

approximately

same

relative

position.

Check

tosee

that

response

above.

Slight

readjustment

A16,

A17,A18,A19

maybe

necessary

obtain

optimum

performance

onall

low

band

channels.

OSCILLATOR

ALIGNMENT

Replace

oscillator

tube(V3).

Set

fine

tuningcontrol

totheraid-pointof

Its

tuning

range.

The

sound

system

must

accuratelyaligned

before

starting

the

oscillator

alignment.

DUMMY

ANTENNA

Two

120S

carbon

res

SIGNAL

GENERATOR

COUPLING

Across

antenna

ter-

minals

with

120S

resistor

each

lead.

SIGNAL

GENERATOR

FREQUENCY

215.75MC

209.75MC

203.

75MC

197.75MC

191.75MO

185.75MC

179.75MC

87.75MC

81.75MC

71.75MC

65.75MC

59.75MO

CHANNEL

CONNECT

VTVM

Probe

thru

Meg

Point

<K>

Common

chassis.

ADJUST

A20,A21

A22

A23

A24

A25

A26

A27

A28

A29

A30

A31

A32

ASS

REMARKS

Adjust

for

zeroreading.

positive

and

negative

reading

will

obtained

either

side

ofthe

correct

setting.

Keep

slug

pairs

same

relative

position.

Adjust

for

zeroreading.

positive

and

negativereading

will

obtained

either

side

ofthe

correct

setting.

Adjust

for

zeroreading.

positive

and

negative

reading

will

obtained

either

side

ofthe

correct

setting.

Keep

slug

pairs

same

relative

position.

Adjust

for

zeroreading.

positive

and

negativereading

will

obtained

either

side

ofthe

correct

setting.

WAVE

TRAP

ADJUSTMENT

Wave

traps

A34and

ASS

are

used

for

specific

types

Interference

and

their

alignment

will

depend

upon

the

type

encountered.

With

the

receiver

uned

tothe

channel

having

the

Interference

set

fine

tuning

control

until

Interference

maximum.

Adjust

A34andA35for

minimum

Interference

the

picture

and

sound.

Keeping

the

cores

approxim-

ately

the

same

relative

position.

Turn

one

core

1/2

turn,

adjust

the

other

for

minimum

Interference.

BSQ

3*38

FIG.

FIG.3

FIG.

PAGE?

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