RCA 21t176 schematic

PHOTO

FACT*

VERT.

HOLD

CONTROL

HORIZ.

HOLD

CONTROL

Folder

MODELS

21T176,

RCA

21T177,

21T178,

21T179

o

m

CONTRAST;

CONTROL

BRIGHTNESS

CONTROL

TRADE

NAME MANUFACTURER TYPE TUBES

POWER SUPPLY TUNING

Alignment Disassembly

RCA

SET

Television

Twenty

RANGE—Channels 2 thru

Instructions

Instructions Horizontal Sweep Circuit Adjustments Parts

List

and

Descriptions

Photographs

Cabinet - Rear Capacitor

Chassis

- Top

Victor Models 21T176,

RCA

110-120 Volts

Victor

Five

............

8

13 t

View

and

Alignment

View

3

Div., Radio

Receiver

AC - 60

13

Identification

VOLUME

CONTROL

ON-OFF

RCA

Victor

Corp.

Cycle

.

SW

21TI78

21T177,

21T178,

of

America,

6, 7

10

4,9

21T179,

Camden,

INDEX

hru

16

.10

TV-PHONO

TONE

CONTROL

(Chassis

N. J.

RATING

Photographs (cont.)

High

Voltage Supply

RF

Tuner

Resistor Resistance Schematic Tube

Placement

FINE

TUNING

STATION

SELECTOR

SWITCH

KCS68C,CB)

2.7

Amp.

18

..

and

Inductor Identification

Measurements

8

12,17

11,18

2

Charts

5

to

3

N

10

N

CO

K>

"The

listing

of any

quality

and

been

compiled

manufacturers

or

use, without

available

suitability

case a recommendation, as

to the

parts

have

Inc.,

by the

"Reproduction

HOWARD

replacement part herein does

warranty

of

from

information furnished

of the

particular type

express

or

guaranty

such

permission,

W.

by

replacement

SAMS & CO., INC. • Indianapolis

not

constitute

Howard

W.

Sams & Co.,

part.

The

numbers

to

Howard

W.

of

replacement part listed."

of

editorial

Sams & Co.,

or

pictorial

of

in any these

con-

Inc.,

tent,

in any

the

use of the Sams & Co., ternational Union

(1910)

DATE

1-52

manner,

is

prohibited.

information

Inc.,

Indianapolis

Copyright Union.

by

Howard

S,

Indiana

No

patent

contained herein.

5,

Indiana,

All

rights

W.

Sams & Co.,

liability

U. S. of

reserved

Inc."

is

assumed

Copyright

1952

America. Copyright

under

Inter-American

Printed

with by

Howard

in U. S. of

SET

respect

under

Copyright

America

157

W.

to

In-

FOLDER

8

CHANNEL

SHOWN

IN

CHANNEL 2 POSITION

©

SELECTION

THE

RECEIVER

LV

SWITCH

COOPERATION

MAKES

IT

RECT

5U4G

OF THE

POSSIBLE

MANUFACTURER

TO

BRING

YOU

THIS

OF

THIS

SERVICE

PAGE

2

A

PHOTOFACT

STANDARD

©Howard

NOTATION

W.

Sams & Co., Inc. 1952

o

I6ji_

0

RED-CRN

BLUE

O

6.3

O

BLUE

GRN

0 O

6.3

O

V

^j

CRN-RED

BUN

O 1 1

SCHEMATIC

YEL

&v_y

•

3 70

VAC

-U

VAC

6.3WC

3Ecr

(

TV-PHONO TONE

IN

TV.

MIN.

SWITCH

I

- TV

2-TV

3-TV

A-

PHONO

5-

PHONO

6-

PHONO

A

MEASURED

•

MEASURED

HIGH SEQI.

MIN.

NORMA

MIN.LO

Mil

NO

Mil

WITH

FROM

NIC

#Ft

HORIZ SYNC

i;)6SN7GT

AMP

(ran)

VW-K

j

@®

4-WV-l

VERT

SfflC

AMP

©6SN7GT

VERT.

HOLD . (fHlJ

CONTROL

4TH

VIDEO

©6CB6

EG

IF

CONTROL

HEIGHT

PHONO

TV,

WIN.

SWITCH

I-

TV

Z-TV 5-

TV

4-

PHONO

5-

PHONO

5-

PHONO

SURED SUREO

TONE

HIGHS SEQUENCE

MIN.

HIGHS NORMAL. MIN. LOWS

MIN.

NORMAL

MIN.LOWS

WITH

VTVM

FROM

130

SWITCH

POSITION

HIGHS

VOLT

SHOWN

LINE

0v

HORIZ OUTPUT

PiP

©6CD6G

MODELS

2TT176,

21T177,

21T178,

21T179

CHASSIS

TOP

VIEW

PAGE

3

PAGE

4

CHASSIS

BOTTOM

VIEW-CAPACITOR

OR

AND

ALIGNMENT IDENTIFICATION

PAGE

9

3

s

§

TOP

VIEW

TUBE PLACEMENT CHART

PAGE

5

1.

2.

3.

4.

5.

6.

1.

8.

9.

14.

15.

16.

DUMMY

ANTENNA

Direct

.005MFI

Direct

DUMMY

ANTENNA

.

005MFD

See

Fig.

The

high voltage shock hazard

Connect

the

High of chassis.

battery

the

side

L24.

ends

to

synchronized sweep

SIGNAL

GENERATOR

COUPtING

to

terminarA

Low

of Connect

••

High

side

to pin 1

of

6AU6,

(V3).

side

to

chassis.

High

side

to

side

the

trimmer

GENERATOR

COUPLING

side

6AU6,

side

to

chassis.

side

has

especially

event

of

the FM

antenna

point

to

chassis.

oscilloscope

SIGNAL

to pin 1 (V10).

to

chassis.

been properly

alignment

and an

replacement

Low

Connect Turn

High

of

High Low

This

unit

that

it is out of

1

volt output, signal In

the

Disconnect

Across

6

minals

ALIGNMENT

may be

of a

IOOOS1

to

(grid)

Low

F .

across

A16 for

(grid)

Low

A .

oscilloscope

channel

trap,

L8,

ter-

potentiometer

Connect

voltage

SIGNAL GENERATOR FREQUENCY

Not

44MC

(10MC

the

minimum

SIGNAL GENERATOR FREQUENCY

4.

SMC

(4001.

mod)

4.

SMC

(IMC

aligned

and

proper

with a sensitivity

2.

Adjustment

of the

from

Not

50MC

(10MC

the

Used

" "

"

speaker

capacity.

AM

Swp)

at the

antenna matching

the

used

swp.)

chassis.

side

point

on

INSTRUCTIONS—READ

eliminated

across a 7.5

center

arm of the

from

the

signal

MARKER GENERATOR FREQUENCY

39.

75MC

41.25MC

47.25MC

43.7MC

45.

SMC

41.

BMC

42.15MC

Swp)

45MC

45.75MC

46.

SMC

42.25MC

M.5MC

42.25MC

45MC

45.75MC

SOUND

voice coil

CHANNEL

Any

ANTENNA

MATCHING

factory

channel

and is

is

available

of the FM

selector

45.75MC (4001.

AM

Mod.)

41.25MC (4001.

mod.)

50MC 52MC 53MC

of at

unit,

equipment

INSTRUCTIONS

by

removing

VIDEO

Volt

potentiometer

generator

CHANNEL

4

"

Any

channel

which

ses no

interference.

IF

ALIGNMENT

to use as an

DC

probe

Common

DC

probe

Common

USE

SCOPE Vert. to

poinKQ>.

to

chassis.

very

to

least

trap,

(A43),

the

entire tuner should

switch.

Any

CAREFULLY

battery

CONNECT

Amp. thru

stable.

align

.02

the

horizontal

IF

ALIGNMENT

capable

to the

Use DC

probe

Common

Vert.

C^

Low

cau

•sis.

Vert. tector to

pin 5 oteAUB

Low

Vert.

^^

Low

sis.

output

VTVM

to

point<g>.

to

chassis.

to

pcint<§>.

to

chassis.

Low

UNIT

ALIGNMENT

Alignment should

it. The

Volts

per

however

The

free

end of L8 is

Vert. tector PoinK^. to

chassis.

BEFORE

ATTEMPTING

oscillator

of

withstanding considerable

junction

SCOPE

to

of R95 &

input

pqint<Q>.

chassis.

horizontal

CONNECT

VTVM

"

Amp.

to

point

side

to

chas-

Amp. thru

side

Amp.

indicator.

probe,

to

side

de-

(fig.

(V3).

chassis.

to

point

to

chas-

ADJUST

2)

A14

A15

A16

10KSJ

A17.A18

side

A19

not be

required equipment inch. Misalignment will

not

effect

be

realigned.

alignment

amp.

thru

de-

orobe

to

Low

side

tube,

of the

ADJUST

Adjust gen.

Adjust steps

Check

1. 5 volts, positive and A15

Adjust

Fig.

the

A17

A18

A19.A20

Al

A7,A8

A9.A10

ALIGNMENT

(V18),

from

R96. oscilloscope

Set

deflection. tain

A2 A3 A4

Adjust signal

A5

A6

Connect terminals onse curve sweep gen. response.

Leave 180fi ot

to

Remove to to proper necessary.

interfere

for

maximum deflection

to

obtain

for

MINIMUM

10 and 11.

the

voltage

adjust

and

A16

until

adjusted

for

maximum amplitude

5.

attempted

consists

of

this

alignment.

Point<p/

Adjust

Connect a 300S2 chassis. to shoulder. amplitude curve Repeat

provement

its

socket.

current

drain.

Connect

for

horizontal deflection.

REMARKS

bias

pot.

to

-IVolt.

Attenuate

-IVolt reading.

for

maximum deflection. Attenuate

gen.

to

330ft

'A*

similar

to

330S2

resistorbetween

R29 and

C40.

fig.

3.

all

damping

-6

volts.

Check

fig.

4.

If

necessary

response.

Incorrect adjustment

with

10

volt reading.

400ft.

at

polnt<£>.

A16 for

negative

peaks.

VTVM

reads

for

MINIMUM

unless

it

of a

sweep

unit

can

cause

as

shown

for

MINIMUM

for

MINIMUM

Adjust

Fig.

7.

A19 A20 is of

shape

steps

can be

Adjust

signal

maintain 1 volt reading.

resistor

across

and

'F'of

M6.

to

fig.

maintain

resistors

connected. Connect pin

Adjust

lor

resistors.

for

response

retouch

Retouch

trap

action.

REMARKS

on

indication

If the

zero

voltage

Repeat adjustment

less

than

4001.

indication

and

has

been

definitely

generator

serious

on the

schematic.

4001.

resistor

for

response

controls

adjusted

.53MC

marker

shown

in

Fig. ^ .

14, 15 & 16

made.

the

for

gen.

R37,

Adjust

I.

Attenuate

. 5

volt peak

5 of V3 and

response

A4 and A5 for

A6

only

VTVM.

on

scope.

voltage

on

VTVM

-1.5

symmetry

capable attenuation

indication

from

PoinKJ^Ho curve

the

placement

to

give maximum

consistant with

until

no

positive

MINIMUM to

main-

R38 and

for

resp-

to

peak

junction

similar

Set IF

bias

curve

similar

if

absolutely

of A6

will

Adjust

Repeal

exceeds

between of A15

volts

on

scope.

as per

established

of at

least

of the

or

similar

of the

further

im-

end

a

signal

t

with

scope.

300-n.

BALANCED

47-<v

F

IG.

FIG.i

FIG.6

PAGE

6

F

IG.I

o

VW-

TO

100 •

SCOPE:

10

K

MMF

FIG.

IN34

"1500^

2.

.005

<IOK

TO

RECEIVER

F IG.

FIG.S

JCTIONS

ORE

ATTEMPTING

tl

oscillator

of

withstanding

junction

zontal

input

•JNECT

:OPE

'M

e

to

pqinKg>.

to

chassis.

' '

up.

to

point

side

to

chas-

np.

thru

-obe,

(fig.

of6AU6 ;

to

chassis.

up.

to

point

side

to

chas-

ator.

ADJUST

A14

tube,

of R95 &

of the

de-

2)

(V3).

ALIGNMENT

(V18),

considerable

R96.

oscilloscope

ADJUST

Al

A2 A3 A4

A5

A6

A7,A8

ASaAlO

Adjust gen.

to

from

its

socket.

current drain. Connect

for

horizontal

Set

bias

pot.

deflection.

Attenuate

tain

-IVolt

reading.

Adjust

for

maximum deflection. Attenuate

signal

gen.

to

Connect

330S2

terminals

'A1"

onse curve

similar

sweep gen.

to

response.

Leave

330J3

180n

resistorbetween

of

R29 and

C40.

to

fig.

3.

Remove

all

damping

to

-6

volts.

Check

to

fig.

4.

If

necessary

proper

response.

necessary.

Incorrect

interfere

with

for

maximum deflection

obtain

10

volt reading.

deflection.

REMARKS

to

-IVoIt, signal

maintain 1 volt

resistor

and

V'of

M6.

to

fig.

maintain

resistors

connected. Connect

pin 5 of V3 and

Adjust

resistors.

for

response

Retouch

adjustment

trap

action.

REMARKS

on

Adjust

across

Adjust

I.

. 5

volt

for

response

retouch

A6

VTVM.

the

positive

for

MINIMUM

gen.

to

main-

reading.

R37,

R38 and

for

Attenuate

peak

to

Set IF

curve

A4 and A5 for

only

if

of A6

Adjust

end

resp-

peak

a

junction

similar

bias

similar

absolutely

will

signal

F

IG.4

FIG.5

11,

18.

19.

20.

21.

22.

23.

24.

25.

2*.

27.

DUMMY

ANTENNA

1500MMF

See

"

Repeat Repeat Repeat

see

Fig.

If

the

tuner

is completely realigned Pre-set Do Disconnect Connect a clip During and Set the Connect

fig.e

"

operating

A26 so the

not

change

any

the

coax

lead

step

17 the

the

tube

replaced

fine

tuning

the

synchronized sweep voltage

SIGNAL

GENERATOR

COUPLING

High

side

to pin 7,

of

6BQ7,

(VI).

to

chassis.

Across

antenna

"

step

18.

step

19.

step

23,

If

necessary

8

Across

antenna terminal.

ALIGNMENT

and

requires

pre-set

all

head

the generator

in its

30

(grid)

Low

side

terminal

repeat

is

on the

terminal"

tuner

socket.

degrees

adjustments

approximately

AGC

is Connect

SIGNAL GENERATOR FREQUENCY

Not

183MC

(10MC

Not

8

SMC

(10MC

Not

85MC

(10MC

steps

Not

screw

adjustments

link from

from

signal

control

only touch

up

alignment

to the

approximate

3/8

antenna matching unit.

A" terminal,

connected clockwise

from

used

Swp)

used

Swp)

used

Swp)

16, 17, and 20

used

inch above

of

L24. Connect a 39S2

(terminal

to the RF

the

generator

from

the

signal

MARKER GENERATOR FREQUENCY

43.

SMC

(4001.

mod)

227MC

unmod)

181.

25MC

185.75MC

129MC

83.25MC 87,

75MC

Not

used

83.25MC

87.

75MC

until

257MC

IN

the

3) to

Amp.

to the

mechani

generato

CHAN

2

8

6

no

furt

c

th

g

13

Adjust

not be

the

steps Check

1. 5 volts, positive and

A16

A15

adjusted

Adjust

Fig.

5.

attemp

of th

alignm

A17

A18

A19.A20

for

10 and 11.

the

for

A15

A16

A17.A18

A19

lent

should

required equipment cons

nch.

Misalignment

will

not

effect

mid

be

realigned,

of

L8 is

alignment Poin

mp.

thru

de-

trobe

to

>,

Low

side

MINIMUM

voltage

adjust

A16 for

and

negative

until

VTVM

for

MINIMUM

maximum

ted

unless

sts of a

is

unit

can

;nt,

\Sy,

as

shown

Adjust

for

Adjust

for

Connect a 3000 chassis. to

Fig.

7. shoulder. amplitude curve

shape

Repeat

steps

provement

4001

indication

at

poinK^).

II the

zero

voltage

peaks.

Repeat adjustment

reads

less

4001 indication

amplitude

it has

been

sweep generator

cause

serious

on the

MINIMUM

resistor

Adjust

for

response

A19

controls

A20 is

adjusted

of

.53MC

marker

shown

in

14,

15

& 16

can be

made.

F

IG.

on

voltage exceeds

on

than

1 1. 5

and

symmetry

definitely

capable attenuation

schematic.

400^

indication

400%

indication

from

the

placement

to

consistant

Fig.

7 .

until

no

3

scope.

Repeat

VTVM

between

of A15

volts

with

on

scope.

as per

established

of at

least

of the

or

scope.

or

scope.

Point^to

curve

similar

of the

give maximum

with

further

im-

±

300-r

BALANCED

L-WV

FIG.6

F

IG.8

TO

300j

28.

29.

30.

31.

32.

33.

Repeat Step Repeat

Step

See

Fig.

6

See

Fig.

6

Remove

If

interference

in

the

20 19

Across

39SJ

area,

Resistor

they should

antenna terminal.

antenna

terminal.

and

reconnect link

from

an FM

station

be

checked

213MC

(10MC

swp.)

207MC

(10MC

swp.)

201MC

(10MC

swp.)

195MC

{10MC

swp.)

189MC

(10MC

swp.)

183MC

(10MC

swp.)

177MC

(10MC

swp.)

85MC

(10MC

swp.)

79MC

(10MC

swp.)

69MC

(10MC

swp.)

63MC

(10MC

swp.)

57MC

(10MC

swp.)

Not

used

V

from

tuner.

is

encountered adjust

to

make

211.25MC

215.75MC

205.25MC

209.75MC

199.25MC

203.75MC

193.25MC

197.75MC

187.25MC

191.75MC

181.25MC

185.75MC

175.25MC

179.75MC

83.25MC

87.75MC

77.25MC

81.75MC

67.25MC

71.75MC

61.

25MC

S5.75MC

55.25MC

59.75MC 257MC

251MC 245MC 239MC

233MC 227MC 221MC

129MC 123MC

113

MC

107MC

101MC

sure

Recheck

FM

the

trap

step

TRAP

the FM

is not

13

12 11 10

9 8 7

6 5 4 3 2

13

12 11 10 9 8 7 6 5 4 3 2

TO

SET

300-0-

n.

16.

19.

20.

21.

22.

23.

24.

25. 2-6.

27.

28.

29.

30.

31.

32.

33.

DUMMY

ANTENNA

1500MMF

See

Repeat

See

Repeat

See

If

the

tuner

is

completely

realigned

Pre-set

A26 so the

Do not

change

Disconnect

the

Connect a clip lead

During

step

and

Set the

Connect

fig.«

17 the

the

tube

replaced

fine

tuning

the

synchronized sweep voltage

High

side

of

6BQ7,

to

chassis.

Across

"

step

18.

step

19.

step

23, If

Across antenna terminal.

Fig.

6

Step

20

Step

19

Fig.

6

Across

Fig.

6

39JJ

If

interference

in

the

area,

Resistor

Remove

ALIGNMENT INSTRUCTIONS

operating

and

pre-set

screw

any

coax

GENERATOR

COUPLING

antenna

antenna terminal.

antenna

they

head

adjustments

link

from

the

signal generator

in its

control

30

SIGNAL

to pin 7,

(grid)

(VI).

Low

terminal

"

necessary

repeat

terminal.

and

reconnect

from

an FM

should

be

socket.

side

requires

only

all

adjustments

is

approximately

on the

antenna matching unit.

terminal"

tuner

AGC

is

connected

Connect

degrees

clockwise

SIGNAL

GENERATOR

FREQUENCY Not

used

Not

used

183MC

(10MC

Swp)

Not

used

85MC

(10MC

Swp)

Not

used

85MC

(10MC

Swp)

steps

16,

Not

used

213MC

(10MC

207MC

(10MC

swp.)

201MC

(10MC

swp.)

195MC

(10MC

swp.)

189MC

(10MC

swp.)

183MC

(10MC

swp.)

I77MC

(WMC

85MC

(10MC

swp.)

79MC

(10MC

swp.)

6

SMC

(10MC

swp.)

63MC

(10MC

swp.)

57MC

(10MC

Not

used

link

from

station

is

encountered adjust

checked

to

touch

up

alignment

to the

approximate center

3/8

inch

A"

of

L24.

Connect a 39fi

terminal, (termina

to the RF

the

generator

from

17,

tuner.

sure

the

and 20

GENERATOR FREQUENCY

43. (400%

227MC (unmod)

181. 2 SMC

185.75MC

129MC

83.25MC 87,

Not

83.25MC

87.

257MC

211.25MC

215.75MC

205.25MC

209.75MC

199.25MC

203.75MC

193.25MC

197.75MC

187.25MC

191.75MC

181.25MC

185.75MC

175.25MC

179.75MC

B3.25MC

67.75MC

77.25MC

B1.75MC

67.25MC

71. 7 SMC

B1.25MC

55.75MC J5.25MC S9.75MC

257MC

251MC 245MC

239MC 233MC 227MC 221MC 129MC 123MC

113MC

107MC

101MC

the

signal generator

MARKER

SMC

mod)

75MC

used

75MC

until

Recheck

the

trap

from

swp.)

make

RF

ALIGNMENT

the

following

above

the

chassis.

carbon

3) to

chassis.

Amp. grid

by

to the

free

mechanical center

end of the

to the

CHANNEL

2

8

6

"

no

further

adjustments

13

13 12 11

10 9 8 7

6 5 4 3 2

13

12 11 10 9 8

7 6 5 4 3 2

step

9 of

FM

TRAP

ADJUSTMENT

the FM

trap

is not

interfering

pre-setting adjustments should

of

their range

resistor

means

horizontal input

Vert.

<£X

chassis.

Vert. detector terminal terminal

Vert.

C£>

Low

chassis.

Vert. detector probe terminal terminal

€

USE DC

probe

Common

Vert. Amp. ^/. chassis.

Vert. amp. tector probe minal minal side

Vert. amp. Point<£>. chassis.

Vert,

Poinl^p. to

Vert. amp. thru tector minal strip. chassis.

Video

A43 to

Turn

of a

wire.

of its

CONNECT

SCOPE

Amp.

Low

Amp. thru

probe

2 on

strip.

Amp.

side

Amp. thru

2 of strip.

't.

Amp.

Low

side

ssis.

VTVM

to

Low

side

2 of

strip.

to

chassis.

Amp.,

chassis.

probe 2 on Low

IF

Alignment

eliminate with

with

A9

fully

across

piece

range.

to

point

side

to

tuner

to

point

to

tuner

to

point

to

poinKJjX

chassis.

to

point

to

are

required.

thru

to

ter-

tuner ter-

Low

to

Low

side

to

Low

to

ter-

tuner

side

them.

or m

tie

following

counter-clockwise.

the

open

of

small

of the

de-

to

side

de-

term, to

and

readjust

nlmize

CCONTJ

not be

exceptions.

end of the

diameter wire

oscilloscope

ADJUST

A21

Adjust scope.

A22

Adjust

A23,

A24

Adjust

A25,

A26

A27

Adjust

A28.A29

Adjust

A30

A31

13.5 or

maximum voltage

-2. 5

If

necessary

proper

432

Adjust overshoot in

the necessary reset

Check curve low and Check (step ment

Check channels. jection between -2.5 3

and 4 adjustment it by amplitude check

Check if

necessary

Adjust

A33

It

5

the

should

all

channels

deg. clockwise

A9 .

interference.

AS4 A3 A3 6 A37 438 427 439 440 441 442

performed.

Set A23 one

link.

.

slipped

for

horizontal deflection.

for Remove

for

volt reading cannot volts.

response.

for

the

same direction, a little further

oscillator

all

high

similar

80% on any

retouchA23,

the

16).

If

of A22 and

the

voltage

show a similar

adjusting

channels 7 thru

the

channel

for

be

If the

quarter turn

over

Pin 7 of the

REMARKS

MINIMUM

400^

indication

the

wire

from

zero

beat

indication

response

curve

similar

zero

beat

indication

response

curve

similar

be

which

retouch A28,

zero

adjustment

to

obtain

band channels

to

channel 8 oscillator

necessary

response Also check

and

of A25 on

between

adjust

zero

possible

with

of

If

A29 and A30 for

beat indication

by

zero

beat.

to

proper

frequency.

FigD

8. If

channel, switch

A24,

A25 and

overshoot

correct

it by

curve shape

the

Point^y,

-5.5

the

13

oscillator

A22 to

beat

indication

to

tie

fine

mechanical

channels

oscillator

volts.

tilt, overshoot

channel

Channel

markers.

13.

correct

obtain

tuning

5 or 6 are

at

A30 on

tuner

pin 7 of

obtained adjust

should exceed

turning

for

markers

A26(see frequency,

adjusting

which

If

2 and

on

zero

center.

is to be

from

tight.

tube,

on

VI.

on

scope.

to

fig.

on

scope.

to

fig.

on

scope,

the

than

Adjust

A22 to

response

fall

to

channel

the

adjust-

on all low

in-

should

channels2,

the

correct

6 for

maximum

Also

frequency,

it.

scope.

beat

control

active

then

screw

step

A32.

re-

on

30

8.

be-

be

o

m

^ C/i

K>

8

17)

'

00

S

to

PAGE

7

Tub.

Hem

V

1

6BQ7

8X8

6AU6 6CB6 6CB6 6CB6 6AG7 6CB6 6AU6 6AU6 6AL5 6AV6

6AQ5

6SN7GT 6SN7GT 6AQ5 6SN7GT

6SN7GT

6CD6G 6W4GT 6W4GT 1B3GT 5U4G 5U4G

2LAP4

T2Kn

on

57KS2 57Kn

.3S2

.sn

on

290KS2 470Kn 47KH

7.8KB lOMee

•

470KS2

f26Kn

,5Meg

i.SMeg

3.9Meg l.SMeg

Inf. M.

nf.

PINS 1 THHOUGH 8 HAVE

nl.

Inf.

ion

SET FOR

FROM FROM

V

2

V

3 V A

V

5 V

6 V

7

V

8 V9 V

10

VI

1

V

12

V

13

V

14 V15

V

16

V

17 V

18 V

1 9

V20

V21

V22 V23

V24 V25

ALL

MEASUREMENTS TAKEN

ALL

CONTROLS

t

MEASURED

•

MEASURED FROM

•

MEASURED

1

MEASURED

•

MEASURED

RESISTANCE

1

8.2Meg lOOKn

On

sen esn

won

on

ts.sxn

on

on 8Kn on

>43on ti.2Kn

tl.SMeg

i.3Kn

tS.BKn

tsoKn

.in

Inf.

200Kn

iiKn

PIN 2

200Kn

IN TV

NORMAL

PIN 8 OF V23 81

130VDC

LINE PIN 8 OF V21 135VDC

LINE

PIN 3 OF V20 & V21

2

8.8Meg

ji3Kn

on on

.in

.in on uon on on

.in on on

isoKn

on

820n 218Kn

won

200Kn 200Kn

Inf.

PIN 10

#270Kn

POSITION

OPERATION

V24

RESISTANCE

3

INF

RESISTANCE

MEASUREMENTS

READINGS

8.7Meg

on

134Kn

t34Kn flSKSJ

tiiKn tiiKn

ti.

3Kn

.2Kn

>24Kn

on

170Kn

tsion

400Kn

on

tl.2K!2

on on won

Inf. Inf.

.

ien

Ififl

6

7

170Kn 100KS2

won on on on .in

t3.8Kn

82n esn

Inf.

t330K.O

.470KH

ion on

3.3Meg

on on on «.m

•.in

Inf

Inf.

on .in .in

.in

on on

3.9Kn

i.2n

.m .in

on

.in .in

t!75Kn

tl.SMeg

.in

IMeg 218Kn

Inf.

Tnf

Inf.

nn

11

i20Kn

4

5

.in .2n

tUKn

t2.3Kn

t5Kn ts.iKn

43n

160Kn SlKQ

•iKn

Inf.

170Kn

taaon

t680Kn t250Kn

ti.2Kn

tisKn

T56Kn

IMeg

t24on

t240n

Inf.

PIN 12 u.2n

ison

t2.9Kn

t8Kn

i.2n

.in

.in .in

ti2Kn

•on

iiKn

8

9

on

t2.9K!2

TOP CAP

«2n

TOP CAP

*soon

DISASSEMBLY

1.

Remove 8 push

2.

Remove 3 wood

3.

Disconnect built-in antenna.

4.

Disconnect

5.

Remove clip

6.

Disconnect

7.

Disconnect picture tube

8.

Disconnect yoke plug from

9.

Remove 6 chassis

10.

Remove

Note:

For

on

screws

speaker.

on

jewel light.

H. V.

speaker

picture tube

OSCILLATOR

type

control

from

lead.

l

socket.

bolts.

Remove

mounting

removal,

INSTRUCTIONS

knobs.

back

cover.

Remove

cover.

H. V.

unit.

chassis.

nuts.

Remove

speaker.

it is

necessary

to

remove

the

ALIGNMENT

POINTS

chassis

as

outlined

above.

PAGE

8

HORIZ.

INEARITY

CONTROL

WIDTH

HORIZ.

^FREQ.

HEIGHT

CONTROL

VERT.

PEAKING

CONTROL

HORIZONTAL

Turn

the set on and

If

the

picture cannot

slug,

(Bl),

Examine

outlined

under

Connect

the low

Adjust

the

during

adjustment

Turn

the

If

the

picture

several

bars

Slowly

turn

If

more than 3 bars counter-clockwise. Repeat

the

Turn

the

Adjust

Bl

the

picture

HORIZONTAL

Pre-set

the

Place

the

Pre-set

the

Pre-set

the

Pre-set

the

Pre-set

the

Turn

the set on and

If

the

raster

Adjust

B5

Retouch

B4 if

Check

the

no

appreciable

If

objectional changes

Adjust

the

be

necessary

If

the

left

turn

the

linearity control clockwise. Whenever

tune

in a TV

be

If

the

waveform slug,

horizontal

the

check

horizontal hold control

until

in

adjustments

width

width slug,

horizontal linearity slug, horizontal linearity control near

horizontal drive trimmer, (B4),

is

clockwise

horizontal linearity

width

to

side

synchronized

adjustment

width

is not out of

sloping

synchronization.

necessary

of

Bl

and

horizontal linearity

HORIZ.

DRIVE,

capacity probe

(B2),

of B2,

readjust

hold

control

synchronization

downward

hold control clockwise

are

present

and

adjustment

one

bar, sloping

DRIVE,

WIDTH,

as

link

cramped

change

slug, (B6), until

move

of the

follows.

in the

minimum

(B6),

to

tune

in a TV

or

shows a bright vertical

until

the

to

obtain

in

linearityespecially

do

occur, turn

the

width

picture

appears

VERT. LINEARITY CONTROL

station,

preferably a test

with

the

will WIDTH,

of an

until

Bl to

to

to the

adjust

of B3

to

downward AND

approximately

station, preferably a test

picture

best

at

various

the

link

horizontal hold control, turn

not

synchronize

of the

AND

LINEARITY

oscilloscope

the

broad

and

keep

the

fully

left.

fully

LINEARITY ADJUSTMENTS

width

(B5),

of

B5

picture

to the

stretched,

picture synchronized.

counter-clockwise,

turn

Bl

and

carefully

the

locking range trimmer, (B3), slightly clockwise

until

2 to 3

clockwise

to the

right, appears

position, (top).

mid-position.

near

minimum

to

minimum

best

linearity

results.

settings

at the

slightly clockwise

is

slightly wider than

lower position

-adjust possible

,.-

/

CABINET-REAR

SWEEP CIRCUIT

pattern.

the

picture, turn

picture

. If

they

ADJUSTMENT.

to

terminal

C of

narrow peaks

and

slightly

and

repeat

note

the

least

bars

are

present

.

bar in the

of the

extreme

in the

inductance,

resistance,

capacity, (counter-clockwise)

pattern.

picture adjust

and

maximum

brightness control. There should

left

side

and

repeat

to

obtain proper width.

the

horizontal linearity control counter-clockwise.

it is

desirable

the

hold

the

are not

L38.

of the

waveform

momentarily interrupt

the

number

at the

picture. Then back

(counter-clockwise).

(clockwise). Allow

deflection,

of the

the

necessary

to

control

waveform slug, (B2),

approximately

on the

signal interruption until

of

sloping

bars

pull-in point.

a few

minutes

B4

clockwise just enough

or the

picture.

check.

to

fill

the

In

this position

correct

the

best

mask horizontally.

linearity

HORIZ.

DRIVE

VHORIZ.

HOCK

VIEW

ADJUSTMENTS

to the

center

of its

range

several

correct

adjust

scope

are of

signal

by the

present before

, if

less

off

until

the bar

tor set to

warm

compromise,

be no

compression

the

with

the

turns

the

equal height

switching

picture

the

than 2 bars

just

up.

to

remove this condition.

are

width

linearity control

and

out

counter-clockwise

horizontal drive, width,

as

shown

to

another channel

is out of

synchronization

picture pulls into synchronization.

are

present

moves

off the

obtained

and

of the

right side

In the

event

left

of low

is

inoperative.

side

rather

coil, (B6) If the

adjust

the

horizontal and

readjust

and

linearity

in

figure

9. If

and

back

and

adjust

B3

slightly

picture leaving

then

one

quarter turn

of the

picture,

line voltage,

of the

picture appears cramped

than

the

drive trimmer(B4).

frequency

Bl.

as

necessary

again.

shows

more.

and

it may

PAGE1O

ADJUST

FOR

FIG.

9

EQUAL

i

PEAKS

RF

TUNER-TOP

VIEW

RF

TUNER-BOTTOM

VIEW

PAGE

11

PAGE

CHASSIS BOTTOM VIEW-RESISTOR

12

)R

AND

INDUCTOR IDENTIFICATION

PAGE

17

WIDTH

LINK

HIGH

VOLTAGE

SUPPLY

PAGE

18

RF

TUNER-RIGHT

SIDE

ITEM

No.

VI V2

V3

V4 V5 V6 V7 V8

V9

V10 Vll V12 V13 V14 V15

V16 V17 V18

V19 V20 V21 V22 V23 V24 V25

ITEM

No.

V25

ITEM

C21

C25 C26

C28 C29 C30

C31 C32

C33A

C34 C35 C36 C37 C38 C39 C40 C41

C42A

C43

C44A

C45 C46 C47

C48A

C49

No.

CIA

C2A

C3A

C4 C5 C6 C7 C8 C9 CIO Cll C12 C13 C14 CIS C16 C17 C18 C19 C20

C22 C23 C24

C27

RF

Converter 1st. Video 2nd. Video 3rd. Video 4th. Video Video Amp.

AGC

1st. Sound

2nd. Sound

Ratio

AF

AF Sync. Vert. Vert. Vert.

Horiz.

Osc.

Horiz. Damper

Damper

H.V.

L.V. L.V. Pic.

B C

D

B C D

B

C

D

.8-1.4

B

USE

Amp.

Det.

Amp.

Output

Sep. Sync. Amp.

Osc.

Output

Sync. Amp. AFC

Output

Reel. Reel.

Reel.

Tube

RCA

PART

No.

21AP4

RATING

CAP.

450

35

450

25

200

20

50

100 35

450

35

450

10

450

10

200 450

35 35

450

10

450 450

5 5

450

2

50 50

2

5

50

18

5 27 33 22 1500 1-4 1500 1500 1500 8 1500 1500 270 330 270 22

.68 12

1500 1500 1500

4700 4700 4700 4700

27

4700 4700

400

.047

4700 4700 4700

82

4700 4700 4700 4700 4700 4700

1500

4700

4700 4700 10000

IF

-Horiz.

VOLT

PARTS LIST

RCA

PART

6BQ7

6X8

Amp.

6AU6

Amp.

6CB6

Amp.

6CB6

Amp.

6CB6 6AG7 6CB6

Amp.

BAU6

Amp.

6AU6 6AL5 6AV6 6AQ5

6SN7GT

6SN7GT 6AQ5

6SN7GT

6SN7GT 6CD6G

6W4GT 6W4GT 1B3GT

5U4G 5U4G 21AP4

REPLACEMENT

SYLVANIA

PART

No.

Capacity

and

Paper

HCA

PART

No.

76486

76485

75510

28417 73747 73747 74521 54207

9305L

72570 38868 76557

74748 76532 75166 73748 75166 70597 73748 75166 75199 76552 75199 76558 71088 76550 76545 75166 75610

75610 73473

73473

1

76470

r

72570 73473 73473 73553 73473 73473 73473

71514

)

76470

73473

)

76470

73473 75166 73473

1

76470

•^73960

TUBES

REPLACEMENT

No.

CATHODE-fl

DATA

values

given

Capacitors,

AEROVOX

PART

AFH4-82

I-AFH4-16

LPRS250/4

AFH4-16

PRS450/4 PRS150/4 PRS150/4 PRS150/4

SI5NPO SI33

BPD-0015

SI1500

BPD-0015 SI1500

BPD-0015 SI1500 SI270

SI330 SI270 SI22N080

SI1500 SI1500 SI1500

BPD-005 BPD-005

1

BPD-2X005'

]

SI27 BPD-005 BPD-005 P488-047 BPD-005 BPD-005 BPD-005

JBPD-2X005'

J

BPD-005

1BPD-2X005"

BPD-005 SI1500 BPD-005

)BPD-2X005"|

J

BPD-01

AND

(SYLVANIA

DATA

STANDARD

REPLACEMENT

6BQ7

6X8

6AU6 6CB6 6CB6 6CB6 6AG7 6CB6 6AU6 6AU6 6AL5

6AV6 6AQ5 6SN7GT

6SN7GT 6AQ5 6SN6GT

6SN7GT 6CD6G 6W4GT 6W4GT 1B3GT 5U4G 5U4G 21AP4

THOMAS

PART

No.

CAPACITORS

in the

rating

and in

mmfd.

REPLACEMENT

CENTRALAB

No.

PART

No.

TCZ-18

TCZ-4.7 TCZ-27 D6-330

TCZ-22

DD-152

829-4 D6-152 DD-152

D6-152

DD-152 D6-152 D6-271

D6-331 D6-271

TCZ-.68

829-3 D6-152 D6-152 D6-152

DD-502

DD-502 DD-2-502

D6-270 DD-502

DD-502 DF-503 DD-502 DD-502 DD-502 TCN-82 DD-2-502

DD-502 DD-2-502

DD-502 D6-152 DD-502 DD-2-502

DD-103

DESCRIPTIONS

or

Equivalent)

RMA

BASE TYPE

9AT 9AK 7BK 7CM 7CM 7CM 8Y 7CM 7BK

7BK 6BT 7BT 7BZ 8BD

8BD 7BZ

8BD

8BD 5BT

4CG

3C

5T

12D

AY

TUBE

RTMA BASE TYPE

12D

column

for

DATA

CORNELLPART

UPT433

UPT434

UPT420

BR445

BBR2-50

BBH2-50 BR550

1D5D5

1D5D5 1D5D5 JD5D5

1D5D5

PTE4S5

1D5D5

1D5D5 1D5D5

1D5D5

1D5D5 1D5D5

1D5D5

UJ5D5

1W5D15

1D5D5 "1D5D5

1D5D5 "1D3S1

Mica

DUBILIER

No.

are in

and

PART

NPOK-180 NPOK-050 NPOK-270 GP1K-330

NPOK-220

801-0015 GP2L-152

801-0015 GP2L-152 NPOK-080

801-0015 GP2L-152 GP2K-271 GP2K-331 GP2K-271 N080-331-220 NPOK-R68 N080-331-120

GP2L-152 GP2L-152 GP2L-152

811-005 811-005 811-005 811-005

GP1K-270

811-005 811-005

811-005 611-005 811-005 N750L-820 811-005 811-005 811-005 811-005 811-005 811-005 GP2L-152 811-005 811-005 811-005 821-01

mfd.

Ceramic

ERIE

No.

NOTES

for

Electrolytic

Capacitors.

SPRAGUE PART

rTVL-3785 l-TVA-1504

rTVL-3785

LTVA-1702

TVA-1702 TVA-1301 TVA-1301 TVA-I303

5GA-Q33

5HK-D15

501C1

5HK-D15

501C1

5HK-D15

501C1

5GA-T27

5GA-T33

5GA-T27

501C1 501C1

5HK-D15 5HK-D47

5HK-D47

.5HK-2D4T

i

5HK-D47 5HK-D47 4TM-S47 5HK-D47 5HK-D47 5HK-D47

>5HK-2D47

1

5HK-D47

I5HK-2D47

5HK-D47

501C1

5HK-D47

J5HK-2D47

J

5HK-S1

NOTES

No.

IDENTIFICATION

AND

INSTALLATION

.Filter

•Decoupling *

Audio Output

Vert.

Output

.Filter

•

Vert.

Output Dec.

*

Output Dec.

Decoupling

.Filter

•

Filter

A

Decoupling Video Amp. Vert.

Osc. Dec.

AGC

Filter

AGC

Filter

Stabilizing

Cap.

Fixed

Trimmer

RF

Coupling

Fixed

Trimmer

Fixed

Trimmer

RF

Coupling

AGC

Filter

Variable

Trimmer

RF

Amp.

Cathode

RF

Bypass

RF

Bypass

Fixed

Trimmer

RF

Amp.

Fil.

RF

Bypass

RF

Coupling

RF

Coupling

RF

Coupling

Osc.

Grid.

Cap.

Fixed

Trimmer

Osc.

Feedback

Variable

Trimmer Conv. Fil. Fil.

Bypass

RF

Bypass

RF

Bypass

AGC

Filter

RF

Bypass

RF

Bypass

Fixed

Trimmer

AGC

Filter

AGC

Filter

RF

Bypass

1st

Video

IF

1st

Video

IF

RF

Bypass

Fixed

Trimmer

2nd

Video

IF

2nd

Video

IF

2nd

Video

IF

3rd

Video

IF

3rd

Video

IF

3rd

Video

IF

4th

Video

IF

4th

Video

IF

4th

Video

IF

4th

Video

IF

RF

Bypass

CODES

NOTES

Cathode

Screen

Screen Fil.

Plate Screen

FU.

Plate Screen

Fil. Plate Screen Cathode Fil.

o

m

to

N Ch

-S

M

>

N

10

3

N 00

to

3

PAGE

13

ITEM

No.

C50 C51 C52

C53 C54 C55 C56 C57 C58 C59 C60 C61 C62

C63A

B

C64

C65

C66A

B C67 C68 C69 C70 C7I

C72

C73

C74 C75 C76 C77 C78 C79 C80 C81 C82

083 C84

C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99

C100 C101 C102 C103

C104 C105 C106 C107 C108 C109 C1IO

cm

C112 C113 C114

C115

cue

C117 C118 C119

C120 C121

C122 C123 C124 C125

*

Not

t

Some

tSome

ITEM

No.

Rl

R2A

B

R3A

B

C

R4A

B

R5A

B

R6A

R7A

B

R8

*

Additional

Note

1 :

RATING

CAP.

.0041

47 15 3

.22

10000 10000

100 39

10000

.1

.0047 10000 10000 10000 10000

56

10000 10000

10000

470

470 1-4

330

.0022

.0047

.015

.0082

.01

.0027

270

.01

.0047

.022

.01

.001

100

.01

.0022

.0047

.01

.047

.22

.0022

.022

.1 .1

.022 .001

100 82 150

.47

.022

.047 .047

82 270 .01

.0015 .001 .047

.47 33

.068 .068

.47

180

150 500 .01 270

.047 .047 1500

150

used

models

RESIST-

ANCE

l.SMeg

I5KB

200K

IMeg

50KB

'Shaft

500KB Shaft

1500B

Shaft

2.5Meg Shaft

10KB

Shaft

500B

Tone

VOLT

600

400

500

400 600

500 500

500 600 600 200 600 400 600

400 600 400 400 600 600

400 600 600 600 600 600

000 400 400 600 400 600 600

000

!00 100

100

600

500

600

1000

600

200

1000

200

30000

400

500

400

in all

RATING

end

parts switch

RCA

PART

73920 39042 39044 76507 73794 73960 73960 76578 76574 73960 73551 73920 73960

.75877

73960

71924

;

75877

73960

39644

76532

76473 73595 73920 73797 73808 73561 73599 47617 73561 73920 73562 73561

75643 75643 45233 73561 73595 73920 73594 73592 74957 73803 73562 73563 73557 73551 73798 75643 45233 73090 44202 73787 73562

73553 73592 73090 76579 73594 76508 73801 73592 73787 76577 73815 73815 73787 76575 76578 76488 73561 76579 75071 75071 73748

models.

use

0033MFD

use 082 MFD

RCA

WATTS

PART

i

76171

i

76445

2

76444

2

i

-,

76443

\

"Y

76447 76449

i}

76448

i

T.

J

i

~>

~j

2

76496

to be

used

attached

to

AEROVOX

No.

PART

P688-0047

SI47N750 S13NPO

P488-22 BPD-01 BPD-01 1468-0001

BPD-01 P488-1 P688-0047 BPD-01 BPD-01 BPD-01 BPD-01

TbPD-01 ^BPD-01

BPD-01 1468-0005 1468-0005

1468-00035 P688-0022 P6B8-0047 P288-015

P488-01 P688-003 SI270 P488-01 P688-0047 P488-022 P488-01 P688-001 P688-001 SHOO P488-01 P688-0022 P688-0047 P688-01 P688-047 684-25 P1088-0022 P488-022 P488-022 P688-1 P488-1 P688-022 P688-001 SHOO

SI150 P288-47 P488-022

P488-047 P688-047

1469-0003 P688-01 P688-0015 P1088-001 P688-047 P288-47

P1088-068 P1088-068 P288-47

P488-01 1468-0003 P488-047 P488-047 BPD-0015 SI150

t

i

this

application

ii

this

application

REPLACEMENT

No.

PART

/

"Concentrikit

Bll-137 Bll-123

•{

E-187

"511-123

t

Not

I

of

Qll-119

Not

Q19-139X

\7

/

Not

Qll-116

Not

W-500

volume

Req. Req. Req.

Req.

J

with Concentrikit.

front

CAPACITORS

REPLACEMENT

CENTRALAB

No.

PART

D6-472 TCN-47 TCN-15

DD-103 DD-103 D6-101

DD-103 DF-104 D6-472 DD-103

1

DD-3-103

_J

DD-103

TCN-56

DD-103 DD-103 DD-103 D6-471 D6-471 829-4 D6-331 D6-222 D6-472

D6-103 D6-272 D6-271 D6-103 D6-472 DF-203 D6-103 D6-102 D6-102 D6-101 D6-103 D6-222 D6-472 D6-103 DF-503

DF-203 DF-203 DF-104 DF-104 DF-203 D6-102 D6-101

D6-151 DF-203

DF-503 DF-503

)6-103

J6-152

)F-503

TV1-503 D6-103 D6-271 DF-503 DF-503 DD-152 D6-151

(Part

CONTROLS

DATA

IRC

CLAROSTAT

No.

» *

*

AM-44-S FKS-1/4 AM-32-S FKS-1/4 AG-84-S FKS-1/4 AG-27-S FKS-1/4 43-500

control.

No.

PART

No.

73795).

76683).

No.

DATA

CORNELL-

DUBILIER

PART

PTE6D5

GT4P2

1D3S1 1D3S1

5W5T1

1D3S1

PTE4P1

PTE6D5

1D3S1 1D3S1 1D3S1

D3S1

1D3S1 1D3S1 1D3S1

5W5T5 5W5T5

PTE6D2 PTE6D5 PTE6S15

PTE4S1 PTE6D3 5W5T3 PTE4S1 PTE6D5 PTE4S2 PTE4S1 PTE6D1 PTE6D1 5W5T1 PTE4S1

PTE6D2 PTE6D5 PTE6S1 PTE6S5 GP6P25 PTE16D2 PTE4S2 PTE4S2 PTE6P1

PTE4PI

PTE6S2 PTE6D1 5W5T1

5W5T15 GT2P5 PTE4S2

PTE4S5 PTE6S5

5R5T3 PTE6S1

PTE6S5 3T2P5

3T2P5

PTE4S1

5W5T3

PTE4S5

'TE4S5

1W5D15

5W5T15

SBB-588

ANAK-1

AN-22

AK-1 B-83 AK-1 B-14 Not

VK-127

CCONT.J

PART

No.

GP2-333-472 N750K-470 N750K-150 NPOK-030

821-01 821-01

GP1K-01 821-01 GP2-333-472

821-01 821-01 821-01 821-01

N750K-560

821-01 821-01 821-01 GP2K-471 GP2K-471 532-08-OR5

GP2K-331 GP2-333-222 GP2-333-472

GP2-333-I03 GP2-333-272 GP2K-271 GP2-333-103 GP2-333-472

GP2-333-103 GP2L-102 GP2L-102 GP1K-101 GP2-333-103 GP2-333-222 GP2-333-472 GP2-333-103

GP2L-102

GPLK-101

GP2K-151

GP2-333-103 GP2L-152

3P2-333-103

GP2K-271

801-0015

3P2K-15I

CENTRALAB

PART

No.

31

Req.

ERIE

SPRAGUE

No.

PART

6TM-S47 5TCU-Q47 5TCU-Q15

4TM-P22 5HK-S1 5HK-S1 1FM-31

5HK-S1 4TM-P1 6TM-D47 5HK-S1 5HK-S1 5HK-S1 5HK-S1

5HK-S1 5HK-S1 5HK-S1 1FM-35 1FM-35

1FM-335 6TM-D22 6TM-D47 6TM-S15

4TM-S1 6TM-D3 5GA-T27 4TM-S1 6TM-D47 4TM-S22 4TM-S1 6TM-D1 6TM-D1 5GA-T1 4TM-S1 6TM-D22 6TM-D47 6TM-S1 6TM-S47 6TM-P25 MB-D22 4TM-S22 4TM-S22 6TM-P1 4TM-P1 6TM-S22 6TM-DI 5GA-T1

5GA-T15 2TM-P47 4TM-S22

4TM-S47 6TM-S47

MS-33 6TM-S1

'

6TM-D15 6TM-S47

2TM-P47

4TM-S1 MS-33 4TM-S47 4TM-S47 5HK-D15 5GA-T15

INSTALLATION

Volume

Control & Switch-

Contrast

Control Tapped @ 5Kft_a!id

Brightness

Vertical Hold Control - Panel Horizontal Attach

per

AGC

Control

Attach

to R4A per

Vertical

Linearity

Attach

to R5A per

Height

Control

Attach

to R6A per

Vertical

Peaking

Attach

to R7A per

Horizontal

No.

Contrast AGC

AGC Horiz.

AGC AGC AGC Sound 1st 1st 1st

Diode Load Cap. Variable

Diode De-emphasis Audio Tone Tone Comp. Audio Tone Tone Comp. Audio Audio Sync.. Sync. Vert. Vert. Vert. Vert.

Vert. Vert. Vert. Vert. Vert. Fixed Fixed Vert. Integrator Horiz. Sync- Coupling Horiz. Sync. Horiz. Sync. Coupling Horiz. AFC AFC

AFC AFC Horiz. Horiz. Fixed Horiz. Horiz. Horiz. Horiz. Fixed Damper Damper Damper Fixed Damper HV Accelerating Anode Dec. Voltage Line Line Horiz. Vert.

NOTES

Control.

Hold

Control - Rear

instructions

Control

instructions

Control

instructions

Linearity

Control

IDENTIFICATION

INSTALLATION

Video Contrast Contrast

Video Coupling

Voltage Divider

Sound Sound Sound

2nd

2nd 2nd 2nd Diode Load Cap.

Vert. Vert.

in

CODES

AND

NOTES

Amp.

Cathode

Cont.

Shunt

Cont.

Shunt

Cont.

Shunt

Filter Filter

Feedback Cathode Filter Filter

IF

Grid

Filter

IF

plate

IF

Screen

IF

Cathode

Sound

IF

Grid

Sound

IF

Plate

Sound

IF

Screen

Sound

IF

Cathode

Trimmer

Load

Cap.

Coupling

Comp.

Coupling

Comp.

Coupling

Output

Plate Sep. Cathode Sep. Cathode Sync. Coupling

Feedback

Sync. Amp. Sync. Integrator

Integrator

Osc. Grid Cap. Discharge Sweep Output Output Trimmer Trimmer Sweep Coupling

Filter Filter

Filter

Plate

Feedback Osc. Grid Cap.

Trimmer

Discharge

Sweep Coupling Output Output Cathode

Trimmer

Padder

Filter

Filter Filter

Output Fil.

Sync.

See

"Concentrikit".

Plate

Coupling

Net.

Coupling

Plate

Net.

Coupling

Sync. Amp. Cathode

Screen

Filter

f Filter Filter

Fil.

Divider

*

Feedback

Note

1

10KS2

PARTS

ITEM

No.

RESISTANCE

3300B

R9

3300B

RIO

150B

20%

Rll R12

47B

R13

82B

R14

470KB

R15 R16 R17 R18 R19 R20 R21 R22

R23

R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40

R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68

R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R82 R83 R84 R85 R86 R87

R88

R89

R90

R91

R92

H93

R94

R95

R96

R97

R98

R99

R100

RI01

R102

R103

R104

R105

R106

R107

R108

R109

R110

Rill

R112

R113

R114

R115

R116

R117

R41 R42 R43 R44 R45 R46 R47 R48 R49

t

•

20%

1000B

20%

1000B

20%

IOOKB

20%

100KS2

20% 3300!! 100KB

20%

10KB

20%

3.3Meg

10KB

220KB

5%

100B

20%

100B

20%

1000B 68000

IOOB

5%

33KB

IOOOQ

IOOOB

56B 5%

33KB

IOOOB

100KB 56KB

10KB

150KB 47KB 120KB

8v2Meg

68B 5%

10KB

2200B

68ooa

5%

56KB

5%

180(2

39KB 6800B 8200B

10KB

1000B 3900B

5%

43B 5%

6750B

680!!

5600B

10KB

150KB 470KB

1000B

150KB

20%

100KB

470KB

20%

82 ft 5%

OOOB

20%

IOOOB

20%

47KB

68B 5%

33KB

ooon

20%

56KB

47B

5%

39KB

200B

5%

OOOB

5%

6800B

5%

S800B

5%

8KB 2KB

27KB

OMeg

20% 330KB 470KB

20%

000

330B 470Q

150KB 100KB

33KB

220KB 1200B IMeg

20%

12KB

3.9Meg

820B

18KB

150KB

8.2Meg 680KB 470KB 470KB

1.5Meg 220KS! 22KB 22KB 22KB

B200B IMeg

20%

IMeg

5% lOMeg 320KB

10KB

3.3Meg

OOOB

S60B

RATING

5%

LIST

WATTS

2

1

2

|

J

2

f

I

1

2

I

-'1 g

z

i A

z

_1

1 1

2

2 l

| l

10 i

1 1

A

I

i 1 1

i

3

1

f

1 1

I

1 | I I

i

z

J

2.

I

A

|

A

2 2

1 1

A i

|

A |

i

I

J

I i

I

f A A

A i

i

I

|

z

2

A

L 2

2

i 1

\T

31417

503310 502422 504110 504110 503210 503268 502110 503333 503210 503210 502056 503333 503210 503410

503356

503310 503415

503347 503412 503582

34763

503310

503222 14659 30650

503118 503339 513268

503282 523310 503210 30694 502043 76642 503168 513256 513310 503415 503447 503210 504415 513410 504447

13961

504210 504210 503347 34763 503333 504210 503356

30732 503339 30731 34766

4659

503318 503322 503327 504610 503433 504447 503110 76465 76467

503415 503410 503333 503422 503212 504510 513312 503539 503182 503318 503415 503582 503468 503447 503447 503515 503422 503322 503322 503322 503282 504510 502510 503610 503482 503310 502533 513210 503156

DAT

PART

RCA

AND

No.

L

IR

PART

BTA-3.

BTS-IO:

BTS-22 BTS-lOt

BTS-101 BTS-10( BTS-68'

BTS-101 BTS-33 BTS-lOt BTS-KM

BTS-33 BTS-101 BTS-lOt BTS-561 BTS-MN BTS-15C BTS-471 BTS-12C BTS-8.;

BTS-10F BTS-221 BTS-681 BTS-561 BTS-180 BTS-391 BTA-681 BTS-82( BTB-IOI BTS-100 BTS-39{

1

3/4A-1 BTS-68C BTA-561 BTA-101 BTS-150 BTS-470 BTS-100 BTS-150 BTA-100 BTS-470

BTS-82 BTS-100 BTS-100 BTS-47I-

BTS-331BTS-lOOi BTS-56F

BTS-39B BTS-1201 BTS-1001 BTS-680 BTS-680 BTS-18K BTS-22K BTS-27K BTS-10M BTS-330 BTS-470 BTS-100 BTA-330 BTA-470

BTS-150 BTS-100 BTS-33* BTS-220 BTS-120 BTS-lMi BTA-12I- BTS-3.9 BTS-820 BTS-18K BTS-150 BTS-8. BTS-680 BTS-470 BTS-470 BTS-1.5 BTS-220 BTS-22K BTS-22K BTS-22K BTS-820 BTS-lMt

BTS-lMc BTS-10M BTS-820 BTS-10K BTS-3.3 BTA-100 BTS-560

2

PAGE

14

SPRAGUE

PART

No.

6TM-S47 5TCU-Q47 5TCU-Q15

4TM-P22 5HK-S1 5HK-S1 1FM-31

5HK-S1 4TM-P1 6TM-D47 5HK-S1 5HK-S1 5HK-S1 5HK-S1

5HK-S1 5HK-S1 5HK-S1 1FM-35 1FM-35

1FM-335 6TM-D22 6TM-D47 6TM-S15

4TM-S1 6TM-D3 5GA-T27 4TM-S1 6TM-D47 4TM-S22 4TM-S1 6TM-D1 6TM-D1 5GA-T1 4TM-S1 6TM-D22 6TM-D47 6TM-S1 6TM-S47 6TM-P25 MB-D22 4TM-S22 4TM-S22 6TM-P1 4TM-P1 6TM-S22 6TM-D1 5GA-T1

5GA-T15 2TM-P47 4TM-S22

4TM-S47 6TM-S47

MS-33 6TM-S1

6TM-D15 6TM-S47

2TM-P47

4TM-S1 MS-33 4TM-S47 4TM-S47 5HK-D15 5GA-T15

NSTALLATION

ne

•ast itness

cal ontal h Control h :al i t i :al i ontal

NOTES

Control & Switch-

Control

Tapped Q 5KS7

Control.

Hold

Control - Panel

Hold

Control - Rear

per

instructions

to R4A per

instructions

Linearity Control

to

R5A

per

instructions Control to

R6A

per

instructions

Peaking

Control

to R7A per

instructions

Linearity Control

IDENTIFICATION

INSTALLATION

Video Contrast Contrast Cont. Contrast Cont. Video AGC AGC Voltage Divider Horiz. Feedback AGC AGC AGC Sound 1st

Sound

1st

Sound

1st

Sound

2nd

Sound

2nd

Sound

2nd

Sound

2nd

Sound Diode Diode Variable Diode De-emphasis Audio Tone Tone Comp. Audio Tone Comp. Tone Comp. Audio Audio Sync. Sync. Vert. Sync. Coupling Vert. Feedback Vert. Sync. Amp. Vert. Sync. Coupling Vert. Integrator Net. Vert. Integrator Net. Vert. Vert. Discharge Vert. Sweep Coupling Vert. Vert. Fixed Trimmer Fixed Trimmer Vert. Sweep Coupling Integrator Net. Horiz. Sync. Horiz. Horiz. Sync. Coupling Horiz. Sync. Amp. Cathode

AFC AFC

Plate Horiz. Feedback Horiz. Osc. Fixed Trimmer Horiz. Discharge Horiz. Sweep Coupling Horiz. Output Horiz.

Fixed Trimmer Damper Damper Damper Fixed Damper HV

Filter Accelerating Voltage Divider Line Line

Filter Horiz. Vert.

in

CODES

AND

NOTES

Amp. Cathode

Cont.

Shunt Shunt Shunt

Coupling Filter Filter

Cathode Filter Filler

IF

Grid

Filter

IF

plate

IF

Screen

IF

Cathode

IF

Grid

IF

Plate

IF

Screen

IF

Cathode Load Cap. Load Cap.

Trimmer

Load Cap. Coupling

Comp.

Coupling

Coupling Output

Plate Sep. Cathode Sep. Cathode

Osc. Grid Cap.

Output

Plate

Output

Plate

Coupling

Sync.

Coupling

Filter Filter

Filter

Grid

Cap.

Screen

Output

Cathode

Filter

f Filter Filter

Padder

Fil.

Anode Dec.

Filter

Output

Fil.

Sync. Feedback

See

Note

1

an

"Concentrikit".

t

Plate

*

R70 R71 R72

R74 R75 R76 R77 R78 R79 R80 R81 R82 R83 R84 R85

R86 R87 R88

R9 RIO Rll F12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30

R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44

R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69

R73

R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R101 R102 R103 R104

RI05

R106 R107 R108

RI09

R110

Rill

R112 R113 R114 R115 R116 R117

ITEM

No.

R31

PARTS

RESISTANCE

3300f! 3300!!

150!!

20%

47!2

82S2

470KS?

20%

1000S2

20%

1000

S2

20%

100KS!

20%

100KS!

20% 3300f! 100KS2

20%

10K!2

20%

3.3Meg

10KS!

220KS2

5%

10012

20%

loora

20%

moon

6800S7

loon

5%

33K!2

iooo!!

10000

sen

5%

33K!2 lOOOf! 100K!2 56K!2

10Kf!

150Kf! 47KS2 120K!2

8i2Meg 68S2

5% 10KS2 22000 680012

5%

56Kfi

5%

ison

39K!2 6800S2 8200S2 10KS2

1000

!!

3900S2

5%

43!!

5%

6750!! 680f! 5600S2

10K!2

150KS2

470K!!

1000S2

50KO

20%

lOOKi!

470KS!

20%

82

a 5%

ooos2

20%

100012

20%

47KS2

68!!

5%

33Kf!

ooon

20%

56KS!

47!!

5%

39KS2 1200S!

5%

OOOS2

5%

6800!!

5%

6800!!

5%

8K!2

22Kf! 27K!2

OMeg

20% 330K!! 470KQ

20%

00!!

330!!

J70!l

ISOKf! 100K12

33K!!

220K!2 1200S2 IMeg

20%

12K!2

3.9Meg

820!! 18K!1

150K!2

8.2Meg 680K!2 470K!2 470K!! l.SMeg 220K!! 22KS2 22KS2 22KS2

3200!! IMeg

20%

Meg 5%

lOMeg 320K!2

OK!!

3.3Meg

5%

ooon

>60!2

RATING

5%

LIST

WATTS

1 t

2

i

I

\

4

~ I

1 |

Z

\

1

^

|

2

| I

1

a I

1 2

\F

i

\

2

~Z

J

|

i

2

\

2

Y

5 _i_

1 1

2 2

^

i" 10

~z

1 1

|

2

?

S.

1 |

»

z

I

2

k

\

i

j;

£

^

\

"z

1

f

T i

9

l

2

I

1 1

~3 ~2

\

1

i t i 1

1

\

i

^

1

2

T

i

2

I f

Z

1

\

1

31417

503310 502422 504110

504110 503210 503268

502110

503333

503210

502056

503333

503210

503410

503356

503310

503415

503347 503412 503582 34763 503310 503222 14659 30650 503118 503339 513268 503282 523310 503210 30694 502043 76642

503168

513256

513310 503415 503447 503210 504415 513410 504447

13961

504210 504210

503347 34763 503333 504210

503356 30732

503339 30731 34766

4659

4659 503318 503322 503327

04610

J03433

04447

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6465 6467

503415 503410 503333 503422 503212 504510 513312 503539 503182 503318 503415 503582 503468 503447 503447 503515 503422 503322 503322 503322 503282 504510 502510 503610 503482 503310

502533

J13210

503156

AND

REPLACEMENT

RCA

PART

No.

DESCRIPTIONS

RESISTORS

DATA

IRC

PART

No.

ALL

RESISTORS - 10%

Antenna

Coil

Shunt Network Network

Amplifier

Cathode

Amplifier

Cathode

Amplifier

Grid

Amplifier

Decoupling

Amplifier

Decoupling

Grid

Coil

Shunt

Grid

Plate Network Network Network

Network

Coil

Shunt

Video

IF

Cathode

IF

Screen

video

IF

Plate

Video

IF

Video

IF IF IF

Network Network Network

IF IF

Screen

IE-

Coil

Shunt

Coil Shunt

Video

IF

Cathode

IF

Screen

Video

IF

Plate

Divider

Amplifier Amplifier Amplifier

Network

Divider

IF

Grid

IF

Cathode

IF

Screen

Sound

IF

Decoupling

Sound

IF

Grid

Sound

IF

Cathode

Sound

IF

Screen

IF

Decoupling

Detector Diode Load

Amplifier Amplifier Output

Grid

Output

Cathode

Cntput

Cathode Wire-Wound

Output Decoupling

Amplifier

Divider

Sync.Seperator

Sync.

generator Seperator

Peaking

Sync.

Amplifier

Sync. Amplifier

Network

Trans.

Grid

Plate

BTA-3.3Meg5% BTS-10K ETS-220K

5% BTS-100 BTS-100 BTS-1000 BTS-6800 BTS-100

5% BTS-33K BTS-1000 BTS-1000

BTS-33K BTS-1000 DTS-100K BTS-56K BTS-10K BTS-150K BTS-47K BTS-120K BTS-8.2Meg

BTS-10K

BTS-2200 BTS-6800

5%

BTS-56K

5%

BTS-180 BTS-39K

BTA-6800 BTS-8200 BTB-10K BTS-1000 BTS-3900

5%

1

3/4A-7000 BTS-680 BTA-5600 BTA-10K BTS-150K BTS-470K BTS-1000 BTS-150K BTA-100K BTS-470K

BTS-82

5% BTS-1000 BTS-1000 BTS-47K

BTS-33K BTS-1000 BTS-56K

BTS-39K BTS-1200

5%

BTS-1000

5%

BTS-6800

5%

BTS-6800

5% BTS-18K BTS-22K BTS-27K BTS-lOMeg

BTS-330K BTS-470K BTS-100 BTA-330 BTA-470

BTS-150K BTS-100K BTS-33K BTS-220K BTS-1200 BTS-lMeg BTA-12K BTS-3.9Meg BTS-820 BTS-18K BTS-150K BTS-8.2Meg BTS-680K BTS-470K BTS-470K BTS-1.5

Meg

BTS-220K BTS-22K BTS-22K BTS-22K BTS-8200 BTS-lMeg

BTS-lMeg

5% BTS-lOMeg BTS-820K BTS-10K BTS-3.3Meg BTA-1000 BTS-560

AGC AGC RF RF RF RF RF Isolation Mixer RF Oscillator Oscillator AGC AGC

AGC

Decoupling Decoupling AGC IF 1st. 1st. Video 1st. 2nd. 2nd. 2nd. Video 2nd. Video Isolation AGC AGC AGC Voltage Divider Voltage Divider Voltage Divider 3rd . Video 3rd. Video

3rd. Video IF IF 4th.

4th. Video 4th. Voltage Divider

Voltage Isolation Video Video Video Contrast Contrast Network Voltage Voltage Divider Picture Tube Cathode Picture Tube Cathode Voltage Divider

Voltage Divider 1st. Sound 1st. Sound 1st. Sound 1st. 2nd. 2nd. 2nd. 2nd. Sound Bleeder Balancing De-emphasis Balancing

Balancing Ratio Detector Diode Load Ratio

Tone Compensation

Tone Compensation. Tone Compensation Audio Audio Audio Audio Audio Audio

AGC

Voltage Voltage Divider Horizontal Horizontal Sync.

Horizontal Sync.

Horizontal Horizontal Sync.

Horizontal Isolation Isolation Sync, Sync. Sync. Peaking Sync. Vertical Vertical Vertical Sync. Amplifier Integrator Network Integrator Integrator Network Vertical Osc. Vertical Osc. Grid Vertical Osc. Vertical Osc. Vertical Peaking

Vertical Output Grid

5%

Vertical Output Cathode Vertical Output Decoupling

(Continued)

IDENTIFICATION

UNLESS OTHERWISE SPECIFIED

Grid Cathode Screen Plate

Decoupling

Cathode

Plate

Decoupling

- See

Decoupling

- See

Grid Cathode Plate

Wire-Wound

See

Grid Plate

Wire-Wound

Grid

Scperato Amplifie Amplifie Amplifie Amplifie

Cathode

Plate See See

Shunt

Note

Cathode

Plate Grid Plate Grid Cathode

See

Note

Grid

Plate

Note

2

Note

CODES

1

2

3 4

2

R118 R119 R120

R124 R125

R127 R128

ITEM

No.

ITEM

No.

T2 T3

T4 T5A

ITEM

No.

T6

ITEM

No.

SP1

SP2

ITEM

No.

LI

ITEM

No.

R121 R122 R123

R126

RI29

R130 R131

RI32

R133 R134 R135

RI36

R137 R138 R139 R140 R14I R142 RMS R144 R145 R146

R147A

Note

Note Note Note

Tl

B

d)

RESISTANCE

)8K!! OK!!

220KS2 150K!! 270K« 2700!!

32K1!

S8KI2 330K!! 320K!!

38K!!

150K!! 3900!! 68Kf! 8200f!

18K!1

56KH 150Kf! 390K!i 390KS!

47(2

IMeg

100!!

8200« 8200!! 82K!2

200!!

1.5!2

lOOOMeg

950S2

B

450fi

C

1500!!

D

1200

E

10K!1

F

7K!1

1:

Some 2: Not 3:

Some Models 4:

Some Models

PRI.

117VAC

®2.7A

DC

PRI.

165!2

300!2

tapped

©10f!

650!!

30S2

3.5!2

Drill

new

IMPEDANCE

PRI.

7KS2

FIELD

P.M.

CONE

11

5/8 in.

TOTAL

DIRECT

CURRENT

.290A

RATING

5%

20%

5%

f2

Models

used

SEC.

700VCT

.290ADC

RATING

RESISTANCE

1310!!

0!!

.5!!

mounting

RATING

SEC.

3.4!!

RATINGS

RES.

DIA.

RESISTANCE

39!!

WATTS

in all

RATING

1

SEC.

PRI.

370!!

V. C.

1

RATINGS

D. C.

1

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a

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503422

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2

^

76648

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"")

6

/

76499

5

I

1

(

5 \ J

may use a

Models may use a may use a

SEC.

5.0VAC

©6.0A

SEC.

6.3VAC

(5)1.

5A

74144 76501

76494 76653

holes.

DC

RES.

SEC.

.4!!

IMP.

3.4f!

DIA.

in.

2

4

RCA

PAR"

R

PA

INI

10

.8

SCRIPTIONS

ESISTORS

ALL

RESISTORS

Antenna AGC

Network

AGC

Network

RF

Amplifier

RF

Amplifier Cathode

RF

Amplifier

RF

Amplifier Decoupling

RF

Amplifier

Isolation

Mixer

RF

Coil Oscillator Oscillator AGC

Network

AGC

Network

AGC

Network Decoupling Decoupling AGC

Network IF

Coil

Is't.

Video

1st.

Video

1st.

Video 2nd. Video 2nd.

Video

2nd,

Video

2nd.

Video Isolation AGC

Network AGC

Network

AGC

Network

Voltage Divider

Voltage 3rd. Video 3rd. Video 3rd. Video IF

Coil Shunt

IF

Coil

4th. Video 4th.

Video

4th.

Video Voltage Voltage Isolation Video Video Video Contrast Network Contrast Network Voltage Divider Voltage Divider Picture Tube

Picture Voltage Divider Voltage Divider 1st. Sound 1st. Sound 1st. Sound 1st. Sound 2nd.

Sound

2nd. Sound 2nd.

Sound

2nd.

Sound

Bleeder Balancing De-emphasis Balancing

Balancing Ratio Ratio

Tone

Compensation

Tone Compensation. Tone

Compensation Audio Audio Audio Audio Audio Audio

AGC

Amplifier Grid Voltage Voltage Divider Horizontal Sync Horizontal Horizontal Horizontal Sync. Amplifier Horizontal Sync. Amplifier Grid Horizontal Sync. Isolation Isolation Sync. Sync. Sync. Peaking Sync. Peaking Vertical Vertical Vertical Integrator Integrator Integrator Vertical Vertical Vertical Vertical Osc.

Vertical Vertical

- 10%

Coil Shunt

Cathode

Grid

Decoupling'

Grid

Shunt.

Grid

Plate

Shunt

IF

Cathode

IF

Screen

IF

Plate

IF

Grid

IF

Cathode

IF

Screen

IF

Plate

Divider

IF

Cathode

IF

Screen

EC'

Plate

Shunt

IF

Cathode

IF

Screen

IF

Plate

Divider

- See

Divider

Amplifier Grid Amplifier

Cathode

Amplifier

Plate

Cathode

Tube Cathode

IF

Grid

IF

Cathode

IF

Screen

IF

Decoupling

IF

Grid

IF

Cathode

IF

Screen

IF

Decoupling

Detector

Diode

Detector Diode Load

Amplifier

Grid

Amplifier

Plate

Output

Grid

Output Cathode Output Cathode Wire-Wound Output Decoupling Wire-Wound

Divider

.Seperator

Sync.

Seperator

Sync.

Amplifier Grid

Amplifier

Seperator

Cathode

Seperator

Plate

See

See Sync. Amplifier Grid Sync.

Amplifier

Sync. Amplifier

Network Network Network

Osc.

Trans. Osc. Grid Osc.

Grid

Plate Peaking Output Grid

Output

Cathode

Output

Decoupling

(Continued)

IDENTIFICATION

UNLESS OTHERWISE SPECIFIED

Decoupling

- See

Decoupling

Wire-Wound

See

Load

Shunt

Note

Cathode

Plate Plate Cathode

See

Plate

Note

2

Note

Note Note

CODES

1

2

3 4

2

R118 R119 R120

R122 R123 R124 R125 R126 R127 R128

ITEM

No.

ITEM

No.

T2

T3

T4

T5A

ITEM

No.

T6

ITEM

SP1

SP2

ITEM

No.

ITEM

No.

R121

R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143

RI44

R145 R146

R147A

Note Note

Note

Tl

B

(J)

No.

L;

RESISTANCE

88KB

OKfl 220KB 150KO 270KB 2700B 32KB 68KB 330KSJ 320KO 58KB

150KB

3900

68KB

82000

18KB

56KO

150KB

390KB

470

IMeg

1000

8200

82000

82KB

200B

1.5B

lOOOMeg

950B

B

450B

1500B

C D

1200B

E

10KB

F

7KO

1:

Some Models

2: Not 3:

Some

4:

Some

PRI.

117VAC

©2.7A

DC

PRI.

165B

300B

tapped

©too

650B

SOB

3.5B

Drill

new

IMPEDANCE

PRI.

7KB

FIELD

P.M.

CONE

11

5/8 in.

TOTAL DIRECT

CURRENT

.290A

RATING

5%

ft

5%

20%

SJ

5%

used

in all

Models

SK.

700VCT .290ADC

RATING

RESISTANCE

SEC. 1310B OB

,50

mounting

RATING

SEC.

3.4B

RATINGS

RES.

DIA.

RESISTANCE

39S2

WATTS

1

a" i

2

2 ^

I 1

i I

i

^

l i

i 1

i f

i

2 1 2

t

2 2 2 1 5

2

^

n

•

u

may use a

Models may use a may use a

RATING

1

SEC. 2 SEC.

5.0VAC

©6.0A

SEC.

6.3VAC

<a)1.5A

76653

holes.

DC

RES.

PRI.

370B

V. C.

IMP.

3.4B

V. C.

DIA.

1

in.

RATINGS

D.

C.

REPLACEMENT

RCA

PART

No. 512368 503310

503422 503415 503427 503227 513382 513368 503433 503482 513368

512415 503239 512368 502282 503318 512356 503415 503439 503439 504047 503510 523110 76504 76504 513382 76682 76468 76648

J

33KS7

5.

6Meg

IMeg

f

1

Resistor

76499

TRANSFORMER

3

6.3VAC

©9.5A

4

SEC.

5

6.3VAC ©2.4A

TRANSFORMER

RCA

PART

No.

74144 76501

76494

TRANSFORMER

RCA

SEC.

PART

75520

RCA

PART

76389

INDUCTANCE

(0

CURRENT

1000

">)

.8H

No.

.40

RESISTORS

DATA

IRC

PART

No.

BTA-68K

5% BTS-10K BTS-220K BTS-150K

BTS-270K BTS-2700 BTA-82K BTA-68K

BTS-330K BTS-820K BTA-68K

BTA-150K

5% BTS-3900 BTS-68K

5%

BTS-8200

5% BTS-18K BTA-56K

5% BTS-150K BTS-390K BTS-390K

BTS-lMeg BTB-8200

BTB-8200

BTA-82K

1

3/4A-

200

'2D-1000

1

3/4A-450

1

3/4A-I500

1

3/4 A -1200

1

3/4A-10K

1

3/4A-7K

in

this

application

in

this

in

this

application

RCA

PART

76495

REPLACEMENT

STANCOR

PART

No.

A-8122

A-8140©

REPLACEMENT

STANCOR

PART

A-3878©

SPEAKER

REPLACEMENT

VIKING

PART

12JI2

FILTER

RCA

PART

No.

76498

(CONTO

Vertical Voltage Volta Voltage

Voltage Divider Vertical Voltage Voltage Horizontal Horizontal Horizontal Control Horizontal Control Horizontal Horizontal Horizontal Horizontal

Horizontal Horizontal Voltage Voltage

Parasitic Horizontal Output Grid Horizontal Output Horizontal Output Horizontal Output Horizontal Output Horizontal H.V. H.V. Voltage Voltage Voltage Voltage Voltage Voltage

application

(POWER)

No.

(SWEEP

DATA

PART

A-4000©

HVO-8

P-3080©

MDF-30

(AUDIO

DATA

No.

PART

A-3020

DATA

No.

12A31

CHOKE

REPLACEMENT

STANCOR PART

C-23260)

Peaking

Divider

ge

Divider

Integrator

Divider

Control

Grid

Control

Grid

Cathode

AFC

Filter

Oscillator

Oscillator Oscillator AFC

Feedback

Divider

Suppressor

Cathode Screen Screen Screen

Linearity

Rectilier

Filament

Filter

Divider Wire-Wound

Divider

Wire-Wound

Divider

Wire-Wound

Divider

Wire-Wound

Divider

Wire-Wound

Divider Wire-Wound

REPLACEMENT

STANCOR PART

No.

CIRCUITS)

MERIT

No.

TBO-2

OUTPUT)

MERIT

CHICAGO

PART

No.

RO-13©

GUAM

PART

No.

DATA

No.

MERIT

PART

C-2996Q)

IDENTIFICATION

Grid Trans.

Shunt

Trans.

Shunt

Plate

Wire-Wound Wire

-Wound

Wire-Wound

DATA

MERIT

PART

CHICAGO

PART

No.

©

Drill

CHICAGO

No.

PART

TR-3300CJ)

CODES

No.

Vert.

Blocking Osc.

Horiz.

Output

Vert.

Output Hor. Detlection Vert.

Deflection

INSTALLATION

one new

NOTES

INSTALLATION

No.

G)

Drill

mounting

CHICAGO

PART

NOTES

Trans.

NOTES

mounting

NOTES

one new

hole.

No.

Colls

Coils

hole.

>

K>

M

00

to

m

o

>

PAGE

15

ITEM

No.

L2 L3 L4 L5 L6 L7 L8 L9 HO Lll L12 L13 L14

LI

5 L16 LI

7 L18 L19

L20 L21

L22 L23 L24 L25

L26 L27

L28 L29 L30

LSI L32

L33 L34 L35

L36

L37 L38

L39 L40

L41

L42 L43

ITEM

No.

Ml

ITEM

No.

M2 M3

ITEM

No.

M4

M5<

M6 M7 M8

B3.B4

use

Ant.

Coll

Ant.

Coll

IF

Trap

Ant.

Shunt

Ant.

Shunt

IF

Trap

FM

Trap

Ant.

Coils

RF

GridCoils

HF

Grid Coil

RF

Plate

Coils

RF

Plate

Coil

RF

Coupling Coil Video

Trap

Fil.

Choke Mixer Grid Coils Mixer Grid Coil Osc.

Coils Fil. Choke Fil. Choke

Fil.

Choke

Conv.

Plate

1st.

Video

2nd

Video

IF

Primary

2nd

Video

IF

Secondary Fil. Choke 3rd

Video

4th

Video

IF

Sound

Take-

Ott

Peaking Coil Peaking

Coil

4.

SMC

Trap Peaking Coil Peaking Coil

Sound

IF Ratio Det. Trans. Horiz. Osc.

Anti-Ringing

Coil Anti

-Ringing

Coil

Anti

-Ringing Coil Width

Coil

Horiz. Lin.

RATING

TYPE

3AG

1/4A

BASE

TYPE

Bayonet

PART

NAME

RF

Tuner

r

'5th

Video

IF

Resistor

Capacitor Capacitor

Crystal

V,

RF

Choke Switch Focus

Magnet

Ion

Trap

Trimmer

-Knob Knob

Knob Knob Knob Knob Knob Knob Knob Knob Knob Knob Knob Knob Knob

76598

PARTS

PRI.

.en

on on on on on on on on on on

on on on

on on

on on on

on

.sn

IF

.on

.in .in

on

.2n

IF

,2n

6.2n

3.

en

i2n sn

i2n

7.sn s.4n

4.2n

7on

2,sn .72n

.72n i2on

I2n

73600

DC

VOLTS

7.5

RES.

FUSE

RCA

76675 76493

76652

76141

52217 76595 76625 76596 76593 76624 76594 76591 76623 76592 74963 74001 75464 76597 76626

LIST

RCA

PART

SEC.

.en

73591

.en

73591 76542

76538 76537 76541 76540 76554 76556 76561 76553 76529

76562 76535 73477

76551 76560

76546 76563 76564

.in

76528

.252

76432

76434

76435

73477

.2n

76433

.2n

76433 76437

76646 76509

71526 76647

3.2n

76438

.2n

76439

44n

76440 76510

76640

76484

76483

REPLACEMENT

RCA

PART

No.

HOLDER

AMPS.

.2

MISCELLANEOUS

PART

No.

AND

REPLACEMENT

No.

DESCRIPTIONS

COILS

(RF-IF)

DATA

MERIT

PART

TV-151 TV-185

TV-

TV-108 TV-I10

MWC-2

182

No.

PART

CL-1 CL-1

FUSES

DATA

LITTELFUSE

PART

No.

FUSE

318.250

DIAL

LIGHTS

BEAD

COLOR

White White

8MMF

10MMF

1N60

Tone

Horiz.

Brightness, Brightness Brightness Channel Channel Channel

Fine Tuning (Maroon)

Fine Tuning (Tan) Fine Contrast, Contrast Horiz. Hold Contrast, Tone-TV Phono (Maroon) Tone-TV Phono (Tan) Tone-TV Phono (Beige)

RCA

PART

U765 H765

lost.

t

\)

lor

Phono

Drive

Vert, Vert. Vert.

Selector Selector Selector

Tuning (Beige)

Horiz. Horiz.

HOLDER

REPLACEMENT

No.

Type

NOTES

"\n

1

Assy.

PT.

#76436

and TV

and

Horiz. Lock

Hold

(Maroon) Hold (Tan) Hold (Beige)

(Maroon) (Tan) (Beige)

Hold

and

olf/on

Hold

and

OFF/ON off/on Volume (Beige)

me

No.

CL-1

DATA

No. 51

Complete

(Dual)

10-160MMF

Volume (Maroon)

Volume (Tan)

(Continued)

NOTES

}

{

\a Matching

\

Complete with Complete

Complete with Rotor,

Includes

Complete with Channel

Complete with Rotor,

Includes Includes Includes Adj. Sound

Tap

at 5n

72

Microhenries,

500

Microhenries,Green,Orange Resistor. Blue.Yellow 250Mlcrohenries,Green ISOMicrohenries, 22K

Resistor.

Tapat

4.

7Microhenries

1.

5Microhenries

1. 5 Microhenries

with

Trimmer . 8-3.

13

Trap Sound

Trap

Dots,

.2n

REMARKS

Rotor, Rotor,

Rotor,

Trap

Orange,

Wound

White,

NOTES

Coils.and Coils,

C12,

Coils

C23 and

8MMF

Coils,

C21, C22, H17, R18,

Coils,

C25 and C26

Red

Dots,

on

47MMF Cap. Dot Yellow

Dots,

C13

R9 and

Wound

R16.

Wound

on

RIO.

3.3K

on

on 6.

and R19

Resistor

8K

Trans.

Complete.Part

#76536

PAGE

16

RCA 21t176 schematic

Specifications and Main Features

Frequently Asked Questions

User Manual