Zenith 19m20 schematic

PHOTO

TRADE NAME Zenith

MANUFACTURER TYPE TUBES Nineteen POWER SUPPLY 110-120 TUNING

PACT*

i

SET

Television

RANGE

Channels

Zenith

Fold

er

VOLUME

CONTROL

ON-OFF SWITCH

MODELS M1800E,

M1800EU, R1812RUZ. M1800EZ, M1800RZ M2228R, M2229E, M2229R, M2230E, M2230R, M2230RZ2, Ma249E, R2229EZ, R2249RZ, R2250EZ, R2250RZ, R2257EZ, R2257RZ, R2258EZ, R2258RZ M2228RU, M2249EU, M2252RU, R2249EUZ, R2257RUZ, M228RZ, M2229EZ, M2249EZ, M2249RZ, M2250EZ, M2250RZ, M2252EZ, M2252RZ M2250RUZ

Radio

Corp. , 6001

Receiver

Volts

AC-60

2

thru

ZENITH MODEL

M1800R,

R1800EZ,

M1800RU,

M2249R, M2250E,

R2229RZ, R2230EZ, R2230RZ, R2249EZ,

M2229EU, M2229RU, M2230EU, M2230RU, M2249RU, M2250EU, M2250RU, M2252EU, R2229EUZ, R2229RUZ, R2230EUZ, R2230RUZ,

R2249RUZ, R2250EUZ, R2250RUZ, R2257EUZ, R2258EUZ, R2258RUZ

,

Cycle

13

VHP,

14

R1800EUZ,

.

M2229RZV

Dickens

Ave. , Chicago

RATING

thru

83

M1800R

R1800RZ,

R1800RUZ, R1812EUZ,

M2250R,

M2230EZ, M2230RZ,

UHF, Video

R1812EZ,

M2252E,

39,

Illinois

1. 6

Amp.

IF 45. 75 MC,

19M20,

CHANNEL

SELECTOR

SWITCH

R1812RZ

M2252R,

(a>

117

Volts

Sound

IF 41. 25 MC

ZENITH

U, Z,

AC

CHASSIS

19M21,

CHASSIS 19M20 19M2OU

19M20Z

19M21

19M21U

19M21Z

19M21UZ

(Intercarrier)

U, UZ, Z

-o to

N

-i

>

I

is

c-

^

w>

c

N

Drive

Cord

Stringing

Horizontal Parts Photographs

"The case a recommendation, warranty as

to the parts Inc.,

by the

"Reproduction

Sweep and

Descriptions

Identification

available

and

suitability

or

use,

without

Circuit

View

HOWARD

replacement

of

of the

express

List Cabinet-Rear Chassis-Top

RF

Tuner

Resistor

listing

of any

quality

have

been compiled from information furnished

manufacturers

Adjustments

....

W.

part

or

guaranty

such

replacement

particular type

permission,

INDEX

6, 7

, . . , 23

11

SAMS & CO., INC. • Indianapolis

herein by

Howard

of

15

thru

does

not

constitute

W.

Sams & Co., Inc.,

part.

The

numbers

to

Howard

W.

replacement part

editorial

Sams & Co.,

or

pictorial

Photographs

Trans. , Inductor

Servicing

18

Schematic

11

Trouble

4,9

Tube

3

Tube

10,

21

Tube

14, 19

in any

of

these

listed."

con-

tent, the

use of the Sams & Co., Inc., Indianapolis ternational Union

DATE

in the

(Alternate (TV)

Shooting

Failure

Placement

in

any

manner,

information contained

Copyright Union.

(1910)

by

12-54

Howard

(Cont)

Si

Alignment

Field

Tuner)

Aids

Check

Chart Chart Chart

is

prohibited.

........

(Bottom (Top View)

5,

Indiana

No

patent

5,

Indiana,

All

rights

W.

Sams & Co., Inc." Printed

Identification

View)

...

liability

herein.

U. S. of

America. Copyright under

reserved

under

is

assumed with respect

by

Howard

Inter-American

in U. S. of

SET

259

20

8

22

13

2

21

12,

5 R 5

to

W.

In-

Copyright

America

EOLDER

16

THE

COOPERATION

RECEIVER

MAKES

»

MEASUBED

IT

POSSIBLE

OF THE

FROM

MANUFACTURER

TO

BRING

1

YOU

THIS SERVICE

OF

THIS

PAGE

2

A

PHOTOFACT

©Howard

STANDARD

W.

Sami & Co., Inc.

NOTATION

SCHEMATIC 1954

LLJ

to to

U

r»

>

in (/>

t/t

N

K>

N

SET 259

FOLDER

16

PAGE

3

PAGE

4

CHASSIS

BOTTOM

VIEW-CA

JJ28)

(C32J

(C27

W-CAPACITOR

IDENTIFICATION

PAGE

9

TUBE

PLACEMENT CHART

1ST

VIDEO

IF

INDICATES

BLANK

TOP

PIN OR

VIEW

LOCATING

SYNC

KEY ON

TUBE SOCKET

The

following;

Refer

to

tube placement chart

POWER No

LOSS No No No Has Overloaded picture

SYNC No Nohoriz. No

SWEEP No No Poor Poor Narrow Vert, Horiz.

TUBE

chart

lists

SUPPLY

raster,

no

sound

OF

PICTURE

pic,

no

sound,

pic,

no

sound,

pic,

has

sound,

pic,

no

sound

FAILURE

vert,

sync - VJ,

sync -Vll,

vert,

or

horiz.

FAILURE

raster,

has

vertical

sound - V14, V15, V16,

deflection

vert,

linearity

horiz.

linearity

picture - V14, V16,

off

freq.

- V7, Vll

off

freq. -Vll, V13,

FAILURE CHECK CHART

tubes whose failures

for

location

FAILURE

- V18

OR

SOUND

has

raster

has

snow - VI,

has

raster

- V8, V9,

-V7

Vll

V13,

V14

sync

- Vll

- V7,

or

foldover - V7,

or

foldover - V14, V15,

are

most

and

type

of

tube.

- V2, V3, V4, V5, V6 V2, V3

- V6, V7, V19

V10

VI7,

VT2

V19,

VI6

V12

V17,

VM

V18

likely

Fuse

to

produce

(Ml)

the

indicated symptoms.

i

10

N

-

I

K)

>

»>

c

NC

N N

H

>

-

V*

SET

259

FOLDER

16

PAGE

5

ANTENNA

1.

470MMF

2.

3.

4.

The high

Connect Connect

Connect DUMMY

The range but Connect

Turn

Connect

The

Set the

DUMMY

ANTENNA

Two Carbon

Resistors

high

voltage

.

the

negative

the

positive

the

synchronized

High of

6CB6

to

chassis.

High Low

master

oscillator

of the

fine

the

higher channels

the

negative lead

up the

scope gain

the

synchronized sweep

sweep generator

fine

tuning control

120S2

Across antenna ter-

minals with each

lead

should

lead

side

SWEEP

GENERATOR

COUPLING

side

to pin 1 (grid)

(V5).

side

to

point

side

to

chassis

adjustment, A10,

tuning

control.

do

so

output

SWEEP

GENERATOR

COUPLING

lead.

be

securely

of a 2

volt

to

chassis.

sweep voltage

Low

side

<^>

.

If

channels 2 thru 6 fall

not , slight

of the

bias

that

the

sound trap

voltage

lead should

to the

mid-position

120S2

in

taped

bias

supply

from SWEEP

GENERATOR

FREQUENCY

43MC

(10MC

Swp)

is to be

adjustment

supply

to the

from

be

terminated

SWEEP

GENERATOR

FREQUENCY

57MC

(10MC 63

MC

(10MC

69MC

(10MC

79MC

(10MC

85MC

(10MC

177MC

(10MC

183MC

(10MC

189MC

(10MC

195MC

(10MC

Swp

201MC

(10MC

207MC

(10MC

213MC

(10MC

ALIGNMENT

and

kept away

from

to the

ungrounded side

the

sweep generator

MARKER GENERATOR FREQUENCY

39.75MC

45.75MC

39.75MC

41.25MC

47.25MC

42.75MC «.OMC

45.75MC

made only

if the

within

of A10 may be

ungrounded side

notch

in the

the

of its

Swp Swp

Swp Swp Swp Swp Swp Swp

Swp Swg

Swp

response curve becomes

sweep

generator

with

its

range.

GENERATOR

FREQUENCY

characteristic

MARKER

59.75MC

65.75MC

71.75MC

81.75MC

87.75MC

179.75MC

185. 7 SMC

191.75MC

197.75MC

203.75MC

209.75MC

215.75MC

INSTRUCTIONS

the

chassis.

Do not

VIDEO

IF

ALIGNMENT

of

C31.

to the

horizontal

input

CHANNEL

Any

non

interfer-

ing

channel

OSCILLATOR ALIGNMENT

individual channel

the

range

necessary

of

C31. Connect

to the

CHANNEL

2 3 4 5 6 7 8 9 10 11 12 13

CONNECT

SCOPE

Vert.

Amp. thru

10KSJ

to

point

Low

side

oscillator

of the

fine

tuning

to

bring

in the

the

visible,.

horizontal

input

impedance, usually

CONNECT

SCOPE

Vert.

Amp. thru

lOK.fl

to

Low

side

remove

of the

to

positive

point

to

<$>

.

chassis

adjustment

control

higher

of the

<£>

chassis

the

horizontal

oscilloscope

ADJUST

A1.A2

A3.A4,

A5

A6,

A7,

A8,A9

channels

lead

to

chassis.

oscilloscope

50

ohms.

ADJUST

All

.

A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22

oscillator

for

horizontal deflection.

Attenuate

peak

to

peak

curve

of

maximum amplitude

metry

similar

Remove

bias

scope gain

response

curve

MINIMUM

bias

supply.

Attenuate maintain

not

peak

on

scope.

A9

to

obtain

A6

affects

the

low

side

fails

to

bring

the

,

Adjust

for

horizontal

Adjust

to

notch

as in

tube (V14)

generator

to marker

sweep generator

the

place sound

to

disable

REMARKS

output

on

scope.

Adjust

to

Fig.

1.

battery.

Use

amplify

trap region

as in

Fig.

2.

amplitude.

more than 3 volts peak

Alternately adjust

response

similar

high

side

response

within

volt

at

deflection.

REMARKS

4.

and A7

C31.

marker

of the

channel

-1

Fig.

the

for 3

volts

for

response

and

sym-

maximum

of

Adjust

Reconnect

output

to

A6

to

Fig.

affects

curve.

the

in

trap

for

to

thru

3.

PAGE

6

FIG.

FIG.2

FIG.3

FIG.4

Remove Connect The

DUMMY

ANTENNA

Two

Carbon

Resistors

Adjust Adjust

II the II

ANTENNA

7.

Fig.

8.

9.

Connect Tune evidenced

quality.

during

Alignment Switch Connect Adjust Connect The

DUMMY

the

bias

supply

from

the

synchronized sweep voltage

sweep generator

GENERATOR

COUPLING

Across

120S2

minals with each

lead.

an

attenuator

in a

tone modulated

by a

hiss

the

sound take-off transformer (A29, A30)

the

buzz control

intercarrier

the

sound

of the UHF

the

receiver

the

negative

the

sweep generator output

the

synchronized sweep voltage

sweep generator

GENERATOR

Across

8

terminals thru matching

8).

output

SWEEP

antenna ter-

120S2

{Zenith

TV

similar

(R9)

buzz cannot

IF

alignment

tuner should

to the UHF

lead

of a 2

output

SWEEP

COUPLING

UHF

antenna

network (Fig.

C31 and

lead should

in

part

signal

to

superregeneration.

for

be

lead should

ALIGNMENT

connect a jumper

from

be

terminated with

SWEEP GENERATOR FREQUENCY

69MC (10MC

Swp)

201MC

(10MC

Swp)

#3-17203

or

and

adjust

minimum

intercarrier

eliminated with

the

signal

rises

not be

attempted

position

.

volt

bias

supply

to

provide 3 volts

from be

terminated

SWEEP

GENERATOR

FREQUENCY

713MC (10MC

Swp)

473MC

887MC (10MC

Swp)

the

sweep

MARKER

GENERATOR

FREQUENCY

equivalent)

the

attenuator until

the

above

unless

to the

peak

the

sweep

MARKER

GENERATOR

FREQUENCY

711.25MC

471.25MC

885.25MC

from

the

generator

its

67.25MC

71.75MC

199.25MC

203.75MC

in

sound

IF

buzz.

buzz

control

the

limiting level

proper

ungrounded

to

peak

generator

with

its

INSTRUCTIONS

HF

AND

MIXER

AGC

lead

horizontal input

impedance,

Vert. 10KS3 Low

IF

ALIGNMENT

the

receiver antenna.

signal

falls

the

setting

(hiss

disappears)

UHF

TUNER

equipment

of

C31. Connect

horizontal

impedance,

Vert. Amp. thru

IOKSI

Low

ALIGNMENT

(yellow)

CONNECT

SCOPE

Amp. thru

to

point

side

to

below

and the

of the AGC

ALIGNMENT

is

available.

input

CONNECT

SCOPE

to

point

side

to

tuner

to the

characteristic

CHANNEL

4

11

SOUND

series

with

the

transformer (A31)

check

test

side

on

scope,

to the

characteristic

CHANNEL

54

14

83

(cont)

to

chassis.

of the

oscilloscope

usually

50

ohms.

ADJUST

^>

chassis.

the

quadrature

the

of the

usually

<$>

chassis.

A23,

.

A24, A25

A26, A27, A28

limiting

level coil

delay control adjustment.

increase

the

positive

lead

oscilloscope

50

ohms.

ADJUST

A33.A34,

.

A3 5

A36,

A37

A38

for

horizontal

Adjust

for

Adjust

A26 and A27 for

response

for

proper band width. Repeat and 6 until response

from

tuner

of the

6BN6

limiter

(A32)

for

maximum sound

attenuation until

to

chassis.

for

horizontal

Tuner rocket position.

If

adjust

tuner

horizontal

when

to

channel

54. Do not

oscillator

calibration

three

channels.

place

video market

curve

as in

sponse)

will

ward

the

counter

is the

correct

A35

for

maximum amplitude

of

response

Check

for

response

oscillator

is off

adjust

the

oscillator

ant,

travel

adjustments

thumb

screws

scale.

Care

adjustment

so as not to arm out of its antenna

travel

response

on

Adjust

A36 to

in

Fig.

7.

Adjust

amplitude

and

to

Fig.

7.

deflection.

REMARKS

response

similar

to

similar

best

is

obtained. Remove jumper

AGC

the

deflection.

arm

necessary,

shaft

Fig.

appear

response.

similar

on top of

must

bearing.

adjustments

scope.

place

symmetry

symmetrical

to

Fig.

6.

Adjust

overall

symmetrical

terminal

to

chassis.

detector,

as

of

best

hiss

returns.

REMARKS

should

be in the

loosen

so

the

If

necessary,

at 50% on

7,

The also.

clockwise position

similar

more than 3 channels

be

video

A37

set

that

rocker

channel indicator

adjust

A33

is off

more

adjust

response

image (weaker

The

response

Adjust

A34 and

and

to

Fig*

7. to

Fig.

travel

(osc.,

are the

three

tuner) adjustment

used

in

making

move

the

Set the

mixer

for

maximum

marker

and A38 for

of

response

Fig.

5.

A28

steps

5

horizontal

screw

arm is

is set

unless

than

A33 to

re-

of A33

symmetry

7. If

mixer

round

this

rocker

and

at 50% as

maximum

similar

to-

and

to

•o

K>

O

N

"

I

Is

c

N

-I

«/>

FIG.5

FIG.

F

IG.6

8

\ON

CONTINUOUS

TUNER

FIG.

7

PAGE

7

V

V7

V

V V

Item

V9

V

1

2

3

4

5

6

8

10

1 1

12

13

1 4

15

16

17

1 8 1 9

Tube

6BK7A

6U8

6CB6

12BY7

12 AX 7

6AU6

6BN6

6AQ5

6CS6 6AH4GT

6AQ7GT

6SN7GTA 6BQ6GT

6AX4GT

1B3GT

5U4G

17LP4

RESISTANCE

Pin 1

t750B

tlO.

1.

IMeg

80KSJ

270n

15n

• 5

100KB

350!!

350KB

19KB

1.

8Meg

2Meg

47KB t!2KB

INF

PINS

INF

OB

3KS2

Meg

60KB

68KS!

500B

80KB

420n

3Kn

270KB

on

. 3n

680n

on .in

IMeg

•

215KS2

.in

INF

1

- 8

30KB

lOOKn

MEASUREMENTS

5

INF

I300B

i470n

t50on

t8.

.IB

1

T32Kn

4. 6B

tsoon

i.

INF

470n

10KB

470KB

•

\NCE

isn

.in

2KB

800KB

8Kn

4.

2n

12

V18

V16

6

7

8

9

47B

2.2KH

on

4.4KB

3.

on

3Meg

on

aoKn

on

tsKn

3.

9Kn

t22Kn

7. 5Kn

15B

.IB

on

•

680KB

350KB

jLlOMeg

OB .IB

on

OB

.in

INF

i.

8Kn

on

.IB

on on

30Kn

TUP

UAP

•

9.

4B

TDPT^SP"

•

414B

2

3

4

.in

INF

.in

ylOOKB

.in

on

.1S2

on

.in

OB

on

isn

40Kn

on

.in

on on

.m

.IB

on an

OB

1.

SMeg

INF

on

3Meg

32KB

on

T12KB

6.

8KB

700KS!

INF

INFINITE

HAVE

teen

16B

PIN 6

PIN 10

•

250KB

t

MEASURED FROM

i

MEASURED

•

MEASURED

•32Kfi

on on

1470B

tSOOB

t8.

on on

f32Kn

t22KB

1.4KB

TlOOKB t460n

t47Kn

teen

470KB

t7on

INF

PINU tSOOKSJ

FROM

2KB

RESISTJ

PIN 2 OF

PIN 7 OF V4 PIN 3 OF

1ST

VIDEO

IF

BOTTOM

2ND

VIDEO

IF

VIEW

HORIZ

DISCH

VIDEO

OUTPUT

LV

RECT

HORIZ 8 VERT

SWEEP PROTECTION

-

PAGE

8

TUBE

PLACEMENT

CHART

VHP

TUNER-RIGHT

SIDE

PAGE1O

VHP

TUNER-LEFT SIDE

WIDTH

ADJ.

HORIZONTAL

Turn

the set on and

Set the

horizontal hold

Adjust

the

Adjust

the

brass

AGC

DELAY

Connect

the

Select

the Satisfactory adjustment clockwise

a

stable

picture

tune

horizontal Drive trimmer width

for a

sleeve

on the

CONTROL

vertical

strongest

TV

until

picture

with

In

a TV

control

picture

neck

of the

ADJUSTMENT

amplifier

signal

may

also

distorts

clear

sound

CABINET-REAR

SWEEP CIRCUIT

station,

preferably a test

adjustment

slightly

of an

available

and

(Bl)

counter clockwise

wider than

picture tube.

oscilloscope

and

be

obtained

buzz

is

obtained.

until

the

picture synchronizes horizontally.

necessary

through a 10KSJ

adjust

the AGC

by

turning

heard

in the

pattern.

for

maximum

to

fill

the

resistor

delay

control

the AGC

delay

sound. Turn

HORIZ.

DRIVE

VIEW

ADJUSTMENTS

width.

picture

mask horizontally

to

point

<&

. Low

for 2. 75

volts

peak output.

control

fully

clockwise

the AGC

delay control slowly clockwise until

by

side

then

sliding

to

chassis.

counter

and

turning

-

N

-i

X

is

c

-

^

ui

N N

SET

259

FOLDER

16

PAGE

11

TROUBLE

SHOOTING

SWEEP

AIDS

LOSS

OF

SWEEP Follow procedure outlined under INSUFFICIENT Check

R94, DRIVE Check

and

C79. Check adjustment COMPRESSED Check

stages

Follow procedure outlined under PIE

CRUST Check

L30

and XMAS Check

C77,

R86,

LOSS

Substitute components.

LOSS Substitute

other

SWEEP

by

substitution

C77,

C76 and

LINES

by

substitution

by

substitution

for

component failure

by

substitution V13,

other TREE EFFECT by

substitution

R90,

OF

VERTICAL

VU.

OF VERTICAL

V7.

associated

V15

other

V14,

LEFT SIDE

V15

EFFECT

associated

V13,

R88 and

AND

Check C51, C52,

't

SYNC-HORIZONTAL

Check

vertical

components.

and

associated

V15

Bl and

and

or

V14,

components.

V14,

R87. Check

HORIZONTAL

"Loss

of

V16.

Check adjustment

components.

and

V16. Check other

associated

V16.

Check

horizontal

change

of

"Drive

Lines".

V15 and

V16. Check

V15,

and

V16.

T2 and T4A for

SYNC

RIO,

R68,

integator

network, check

High

Voltage".

Bl.

Check

T2,

T4A.R90,

components.

output

value.

C70 for

Check L30, C74, C75,

Internal

R66 and

other

associated

SYNC

SATISFACTORY

R5,

T2,

T4A,

R94,

C77

and

damper

open. Check

C76

arcing.

R99,

C55 and

SYNC

LOSS

OF

SWEEP

Check

by

substitution

C2D,

T3, T4B and INSUFFICIENT Check

by

substitution

controls

for

proper COMPRESSED Check

by

substitution

iated

components. COMPRESSED Check

by

substitution

components.

Check

by

substitution

associated

components.

LOSS

OF

HORIZONTAL

Substitute

V13.

other

associated HORIZONTAL Check

by

substitution

V13.

V7 and

other

SWEEP

V7 and

operation.

AT

BOTTOM

V7 and

AT TOP

V7 and

Check

horizontal

components.

BENDING

V7,

VERTICAL

V12. Check

associated

SYNC-VERTICAL

V12.

Check

V12. Check

V12.

Vll

and

components.

Check height

T3 and

Check

Check R72, C54,

AFC

network.

V13.

Check

R3,

R72,H6,

T4B.

R3,

H75,

R6,

R77,

SYNC

components

Check'RSO,

H77,

C57, C54,

and

vertical

linearity

C57 and

other

C2D and

other

T3, T4B and

SATISFACTORY

C65,

associated

assoc-

associated

other

C70 and

with

LOSS

OF

Substitute components.

SOUND

BARS

Adjust

tuner

A30. Check POOR

CONTRAST

Substitute Check

video detector

WEAK

OR NO

Check

by

signal

genator.

If

Satisfactory

Check

audio

stages

for

change

of

DEAD

SET

If

filaments fall

volume

control

and

decoupling

VIDEO

V6.

Check R43, L27,

(4. 5 MC

BEAT)

fine

tuning

video

IF

alignment.

V6.

Check

contrast

crystal

SOUND

substitution

value.

V8, V9 and

Apply

audio

IF and

audio

component failure

to

light, check

and

Tl.

If

network.

for

best

network.

signal

detector

or

filaments

R8,

sound

control,

V10.

across

AC

interlock light,

R49,

and

picture

Check

C43 and

picture.

tube, C43,

stages

Rl.

If

Check

C49, C50,

R63,

speaker,

iated

components.

assembly.

substitute

other

associated

Check adjustment

L27

V9 and

V10

Unsatisfactory

C1C,

T5 and

Check switch

V18.

Check

and

C41.

using audio

H65,

R60,

other

assoc-

on

B+filter

VIDEO

AUDIO

Adjust

and DISTORTED Follow

POWER

SMALL Substitute V18. Check

NEGATIVE Substitute

C2C

and

Substitute L27,

R49 and

WIDE

BLACK

Check

by

tuner

A32 for

procedure

AND/OR

PICTURE

V6.

Check video

R49. Check

V6.

Check video

other BAR

substitution

fine tuning

minimum

outlined under "Weak

DIM

detector

video

IF

alignment

detector

associated

ACROSS PICTURE

component.

VI,

V3, V4, V5 and V6 for

for

best

sound

buzz.

If

still

unsatisfactory,

PICTURE B+

filter

and

decoupling network.

crystal

network, picture tube, C43,

crystal

network. Check C43, C41,

heater

and

picture.

Check adjustments

check audio

or No

Sound".

to

cathode

IF

leakage.

R9

alignment

PAGE

12

PHOTOFACT

©Howard

STANDARD

W.

Somi

NOTATION

S,

Co., Inc.

SCHEMATIC

195J

'HP

-UHF

TUNER

WRT

NO.

S2IOOI

USED

ON

SOME

MODELS

ALTERNATE

z 'zn

'n

'L

zw6 L 'z

TUNER SCHEMATIC

L

'n

y

SISSVHD

H1IN3Z

f

•

PAGE

14

CHASSIS

BOTTOM

(R6

VIEW-RI

f-RESISTOR

IDENTIFICATION

PAGE

19

ITEM

No.

VI V2 V3 V4 V5 V6 V7

V8 V9 V10 Vll V12

VI3 V14

V15 V16 V17 V18

ITEM

No.

VI

ITEM

No.

CIA

C2A

C3 C4 C5 C6 C7 C8 C9 CIO Cll C12 CIS C14 CIS C16 C17 CIS C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34

CSS

C36

C37

C38

C39

C40

C41

C42

C43

C44

C45

C46A

C47

C48

C49

C50

C51

C52 CSS C54 C55 C56

9

B C

B C D

TUBES

USE

RF

Amplifier Mixer - Osc. 1st. Video 2nd.

Video 3rd. Video Video Output

AGC

KeyingVert.

Mult.

Sound

IF

Amp.

Audio

Detector

Audio

Output

Sync

Separator Vert.

Mult. Vert. Output Horiz.

AFC

Horiz.

Oscillator-

Horiz.

Discharge

Horiz.

Output Damper HV

Rectifier

LV

Rectifier

ZENITH PART

No.

17LP4

/

17VP4

21YP4 21YP4A

(p

RATING

CAP.

•

40 .80 430 .40

•

10 A

10 100 40 40 40 40

2.5-6 400 800 400

2.2 400 400 400

.85-2.:

.6-3 800 100 19 2 400 2

4.5 10

5.5 400 470 24 9 6 .1 330 1000 .015 1000 470 1000 470 470 1000 47

.022 .1

3.3 50 1000

B

1000 10 .01

10000 .0068 .0033

27

.0022

.022 .33

.0022

PARTS

LIST

(SYLVANIA, GENERAL

REPLACEMENT

IF

Amp.

IF

Amp.

IF

Amp.

-

VOLT

400

1

400

\0 1

450

1

450

I

400

(

50

J

400

200

200 200

200 1000

600 600

600 200 600

ZENITH PART

6BK7A

6U8

6CB6 6CB6 6CB6 12BY7

12AX7

6AU6 6BN6 6AQ5 6CS6

6AH4GT 6AQ7GT

6SN7GTA

6BQ6GT

6AX4GT

1B3GT

5U4G

CBS-HYTRON

PART

No.

17LP4

21YP4 21YP4A

(D

Capacity values and

Paper

ZENITH

PART

No.

22-2437

22-2483

22-2519 22-2519 22-2519 22-2519 22-2221 22-2401 22-2331 22-2401 22-2468 22-2401 22-2401 22-2401 22-2453 22-2504 22-2331 22-2407 22-2406 22-2536 22-2557 22-2536 22-2500 22-2411 22-2449 22-2557 22-2217

22-1777 22-2309

22-7

22-2302

22-7

22-2524 22-2217 22-2112 22-2467 22-1781 22-1777 22-2343 22-2460 22-2553

22-2378

22-3 22-3

22-2495 22-1785 22-2396 22-1845 22-2129 22-2159 22-2161

No.

REPLACEMENT

6BK7A

6U8

6CB6 6CB6 6CB6 12BY7

12AX7 6AU6 6BN6 6AQ5 6CS6

6AH4GT 6AQ7GT

6SN7GTA 6BQ6GT 6AX4GT 1B3GT 5U4G

CATHODE-RAY

REPLACEMENT

GENERAL

ELECTRIC

PART

No.

17LP4

/ 17VP4 21YP4 21YP4A

CD

given

Capacitors,

AEROVOX

PART

AFH3-46

AFH4-83

BPD-0008 SI2 . 2NPO

BPD-0008 SHOO

SI2 . 2NPO

SI10NPO

SI470

P288-1 BPD-001

P288-1

BPD-001

SI470

BPD-001 1469-0005

SI470

P288-1

BPD-2X001

P28<i-01 BPD-01

P688-0033 P688-0022 P288-33

AND

DATA

STANDARD

DATA

SYLVANIA

PART

17LP4 17VP4 21YP4 21YP4A 21AFP4C2

CAPACITORS

in the

rating

and in

mmfd.

CENTRALAB

No.

PART

DD-801 TCZ-2.2

DD-801 D6-101

TCZ-2.2

TCZ-10

D6-471

DF-104 TCZ-331 DD-102 DF-104

DD-102 D6-471 DD-102

D6-471

DF-104

DD2-102

D6-103 DD-103

D6-332 D6-222

DESCRIPTIONS

ELECTRIC,

RETMA

BASE TYPE

9AJ 9AE 7CM 7CM 7CM 9BF

9A 7BK 7DF 7BZ 7CH

8EL 8CK

8BD 6AM 4CG 3C

5T

TUBE

WESTINGHOUSE

No.

/

O

column

for

Mica

REPLACEMENT

CORNELL-

DUBILIER

No.

PART

C154

C032

r I

BRH501

K067

TZ05

K067 TP34

TZ05

TP09

TP46

PJ2P1 K069

PJ2P1

K069 TP46 K069 5R5T47 TP46

PJ2P1 TZ06 TP30 DK069

PJ2S1 K082

CUB6D33 CUB6D22 PJ2P33

WESTINGHOUSE)

RETMA

BASE

No.

(J

mfd.

Ceramic

ERIE

1

PART

No.

801-0008 NPOK-2R2

801-0008 GP1K-101

NPOK-2R2

NPOK-100

GP2K-471

801-001 801-001

GP2K-471 801-001

GP2K-471

812-001

811-01 GP2-333-332 GP2-333-222

TYPE

12L 12L

12L 12M

for

PART

17LP4 12YP4

21YP4A

are in

DATA

No.

and

NOTES

S>

Aluminlzed

®

Circuit change

necessary

Electrolytic

Capacitors.

MALLORY

No.

|f

FP378

It

TC72

|fFP396.2

,

[

-TC3501

l

UC-538

UC-538 UC-53I

ZT-541

UC-5347

PT401 DC-621

PT401 DC-521 UC-5347 DC-521 MCE245 UC-5347

PT401

DCD-521

PT411

DC-511 PT6233 PT6222 PT4033

NOTES

SPRAGUE PART

TVL-4670

TVL-3762 TVA-1705

5GA-T8 5TCCB-V22

5GA-T8 5GA-T1

5TCCB-V22

5TCC-Q1

5GA-T47

2TM-P1 5HK-D1

2TM-P1

5HK-D1 5GA-T47 5HK-D1 MS-35 5GA-T47

2TM-P1

5HK-2D1

2TM-S1

5HK-S1 6TM-D33 6TM-D22 2TM-P33

No.

NOTES

Note

Note Note

Note

o

1

2

3 4

5

J-

N

-H

K)

>

~

Vt

C

-

w>

C N

N

SET

259

FOLDER

16

PAGE

15

RAT

ITEM

No.

C57 C58 C59 C60 C61 C62

C63A

C64 C65 C66 C67 C68 C69 C70 C71

C72

C73 C74 C75

C76 C77 C78 C79 C80 C81 C82 C83 C84 C85

ITEM

No.

RIA

B

C

R2A

R3A

R4A

R5A

R6A

R7A

R8 R9 R10A

Note. Connect a IMeg of

control

original

ITEM

No.

Rll R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26

R27

S28

R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41

NG

VOLT

CAP.

.1

600

1000

500

1000

500

.022

200

.033

200

.01

400

1000

B

1000

10000

100

120

500

.001

200

0047

400

.15

200

.001

200

.1

200

680

500

.0015

400

1000

500 1000 680

500 220 .047

400

.15

400

72

2000

4.5 7 470 .15

200

.01

200

RATING

RESIST-

ANCE

IMeg Shaft Switch

7.

SMeg

B

Shaft

lOMeg

with

IMeg

stop

B

Shaft

200KO

B

Shaft 75KO

B

Shaft 25000 Shaft

B

15KO

B

Shaft

50000 6000

4.5Meg

B

Shaft

and the

control

(control

RATING

OHMS

47KO 470KS! 27KO

4 7O

100KO 100KO 2200 47000 4700 68KO 100KO 82KO 22000 2200!!

10KO

22KO

680 560

1800

4700 27KO 68000

120KO

150 12KO 120 KO

4700 2700

5%

1500

82000

5KO

WATTS

1

i

J 1

i

4 1

z

lead

WATT

i

3

I

~

2

z L

2

|

^

k

I

2

i

2 J

z

i

2

\

|

5

I i

§

2

s

22-1841 22-2545 22-2545 22-1781 22-1840 22-1846 22-2545

22-3 22-9

22-2505 22-1839

22-1842 22-2166 22-1839 22-1777

22-2340 22-1785

22-2163

22-2112 22-2387 22-2458 22-1775

22-2341 22-2522

22-2375

22-3

resistor

connecting

63-1856 63-1897 63-1845 63-1729 63-1869 63-1869 63-1758 63-1813 63-1772 63-1862 63-1869 63-1866 63-1799 63-1799 63-3170 63-1729 63-1737 63-1733 63-1754 63-1772 63-1841 63-1821 63-1873 63-1708 63-1827 63-1873 63-1772 63-1760 63-1750 63-1101

63-1834

ZENITH

PART

No.

P688-1 1464-001 1464-001

P4

BPD-2X001 BPD-01

BPD-0001 1469-0001 P688-001

P688-001 P288-1

ZENITH

PART

No.

63-3199

Not Not

63-2919

Not

63-2946

Not

63-2837

Not

63-2896

Not

63-2971

Not

63-2976

Not

63-3201 63-3167 63-3208

Not

viewed from shaft

REPLACEMENT

ZENITH

PART

Req. Req.

Req.

No.

in

series to

same

Q13-137

Not 76-1

Qll-142

RQ

Qll-143

RQ

Qll-129

Not

Qll-125 NotHeq. Qll-112

RQ

Qll-119

RQ

Qll-141

Not

BTS-47K BTS-470K BTS-27K BTS-47 BTS-100K BTS-100K BTS-220 BTS-4700 BTS-470 BTS-68K BTS-100K BTS-82K BTS-2200 BTS-2200 BTB-10K BTS-22K BTS-68 BTS-56

BTS-1

BTS-470 BTS-27K BTS-6800 BTS-120K BTS-15 BTS-12K BTS-120K BTS-470 BTS-270 BTS-150 BTB-8200 BTS-15K

CAPACITORS

AEROVOX

PART

No.

88-01

1469-0007 P488-0015

1468-001

P488-047

SI470 P288-15 P288-01

REPLACEMENT

IRC

PART

No.

Req.

A47-7.

Req.

with

right

hand

terminal

or the

end

terminals

DATA

IRC

PART

No.

80

Note

(cont)

REPLACEMENT

PART

D6-152

DF-503

D6-471

D6-103

No.

CORNELL-

DUBILIER

PART

CUB6P1

1R5D1 1R5D1

CUB4S1 DK069

K082 G042 22B5T12 CUB6D1

CUB

PJ2P1

CUB4D15

CUB4S47

PJ2P15 PJ2S1

CENTRALAB

DF-104

D6-103 DD2-102

DD-103 DD-101

D6-102

D6-102 DF-104

CONTROLS

DATA

CLAROSTAT

PART

No.

A47-lMeg-Z KSS-3 SWE-12

5Meg-S

FKS-1/4

A47-10Meg-S

FKS-1/4

A47-200K-S

KSS-3 A47-75K-S KSS-3 A47-3000-S

FKS-1/4

A47-15K-S

FKS-1/4

39-600 A47-5Meg-S

FKS-1/4

termi

dow

RESISTORS

NOTES

ITEM

No.

R42 R43 R44 R45 R46 R47 R48

R49 R50 R51 R52 R53

R54 R55 R56 R57 R58 R59 R60 R61 R62

1

R63 R64 R65 R66

2

R67 R68 R69 R70 R71 R72

DATA

No.

GDI

LR5T68

1H5D1

CENTRALAB

PART

AB-70

AK-4 KB-1

AB-98

AK-1

AB-98

AK-1

AB-46

AK-4

AB-35

AK-1 AB-7 AK-1

AB-20

AK-1

SUP-999 AB-87

AK-1

OHMS

150

22K« IOOKO 100KO 33KO 47KO

10

MeK

6800 220KO 39000 180K1J

220KO 220KO 680KO

2.

2Meg

IOOKO

10KO

22KO 680O 680KQ

6.

SMeg 6800 22KO 470O 470KO 100KO 470KO 56KS! 220KO 47KO 22KO

GP2-333-103 812-001

811-01 801-0001

GP2-333-102

GP2-333-152

GP1K-471

No.

RATING

ERIE

PART

U-53 Not U-26 U-82 Not

U-826

Not

U-430

Not U-41 Not SU-8 Not

SU-29

Not

M5MPK SU-67

Not

No.

MALLORY PART

Req.

WATT

2 f

f

^

No.

ZENITH

PART

63-1708 63-942 63-1869 63-1869 63-1848 63-1855 63-1961

63-2290 63-1884 63-1810 63-2313 63-1884 63-1884 63-1904 63-1926 63-1870 63-1827 63-2141 63-1779 63-1904 63-1947 63-2290 63-1842 63-1771 63-1897 63-1869 63-1897 63-1859 63-1883 63-1855 63-1841

PT601 MCE-255

MCE-255

PT411

DCD-521

DC-511

UC-531 MCE235 PT621

PT621

PT401

PT4015

PT411

MALLORY

PART

No.

PT4215 MCE255

PT4147

UC-5347

INSTALLATION

Volume Attach

to

Attach

to Focus Attach

to R2A

Height - Note

Attach

to R3A

Brightness

Attach

to R4A

Vert. Hold

Attach

to

Vert.

Linearity

Attach

to

AGC

Attach

to R7A

Contrast Buzz - wire Fringe

Attach

to

REPLACEMENT

No.

SPRAGUE PART

6TM-P1

MS-21 MS-21

4TM-S1 5HK-2D1

5HK-S1 5GA-T1

MS-31

6TM-O1

6TM-D1 2TM-P1

MS-37 4TM-D15

MS-21

4TM-S47

5GA-Q47 2TM-P15 2TM-S1

RIA RIA

R5A R6A

-wire wound

lock

R10A

DATA

PART

BTS-15

BTB-22K BTS-100K BTS-100K

BTS-33K

BTS-47K

BTS-10

BTA-680 BTS-220K BTS-3900 BTA-180K BTS-220K BTS-220K BTS-680K BTS-2. BTS-100K BTS-10K BTB-22K BTS-680 BTS-680K BTS-6. BTA-680

BTS-22K BTS-470 BTS-470K BTS-100K BTS-470K BTS-56K BTS-220K BTS-47K BTS-22K

IRC

No.

Meg

SMeg

No.

NOTES

wound

2Meg

NOTES

Nole

NOTES

Note

Note Note

PARTS

LIST

AND

DBS

RESISTO

ITEM

R73 R74 H75 R76 R77 R78 H79 R80 RBI R82 R83 R84

R85

R86

No.

OHMS

100KB

loon

I.

8Meg

IOOKO

10000

5600 5600

1

Meg

1

Meg

1

Meg

27KO

1000

4700

47KO

RATING

WATT

REPLACEMENT

ZENITH

PART

63-1869 63-1744 63-1922 63-1870 63-965 63-1775 63-1775 63-19U 63-1911 63-1911 63-1845 63-1744 63-1771 63-1194

No.

Note Note Note Note Note

1.

Some

2.

Some

3.

Some

4. Not

5. Add

DATA

IRC

PART

No.

BTS-100K BTS-100 BTS-1.

BMeg BTS-100K BTA-1000 BTS-560 BTS-560

BTS-1

Meg

BTS-1

Meg

BTS-1

Meg

BTS-27K BTS-100 BTS-470 BTA-47K

versions

versions versions

used

this

in all

resistor

NOTES

may use

may use may use versions.

for

22KS

10KS 15KS

combir

TRANSFORMEF

ITEM

No.

Tl

6

Q)

ITEM

No.

T2

T3

T4A

B

CD

Winding

©

Centering device

®

Use

@

See

(§)

Connect

(§)

Drill

ITEM

No

T5

ITEM

No.

SP1

3

ITEM

No.

LI

L2

L3

L4

L5

L6

L7A

4 5

B

C

D

E

F

G

PRI

117VAC

®1. 6A

SEC.

3

12.6VCT <a)4.4A

Use

only

Series

6.3V windings

Use

universal

Horlz.

Output

Vert.

Output

Yoke-Horiz.

Vert.

and

original

instruction

as

one new

IMPEDANCE

PRI.

SEC.

9.

4KO

4.20

SIZE

4"

5

1/4"

10"

USE

Series

Police Trap Shunt

Police Trap Series

Police Trap Shunt

Police Trap Series

Police

Trap

Ant.

, RF

Grid

Coil

Ant.

, RF

Grid

Coil

Ant. , RF

Grid Coll

Ant.,

RF

Grid Coil

Ant.,

RF

Grid Coil

Ant.

, RF

Grid Coil

Ant. , RF

Grid

Coil

RATING

SEC.

524VCT

.250ADC

SEC.

one 5V

USE

Trans.

(13MH)

(42MH)

terminal

yoke

sheet

auto

transformer.

mounting

RATINGS FIELD

PM PM PM

1

SEC.

2

5VAC

(a) 3 A

4

SEC.

5

winding.

for

12.6VCT.

mounting

brackets.

TRANSFORMERS

assembly

and

yoke

cover.

cover

and

positioning

packed

with

hole.

TRANSFORMER

ZENITH

PART

No.

95-1379

V. C.

IMP.

4.20

DC

RES.

PRI.

SEC.

00

on

00

oo

00

oo

S-20993 95-1377

95-1378 S-I9898

part

unit

ZENITH

49-750 49-751 49-752

ZENITH

PART

95-1375

ZENITH

PART

#3-21078.

for

PART

No.

A-3879

PART

No.

©

@

ZENITH

PART

20-490 20-505

20-490 20-490

20-505 20-490

S-21192 S-21193 S-21194 S

-21195

S

-21196 S-19847

S-19848

No.

0)

©

device.

replacement

REPLACEMEN

PART

A-2932

REPLACEMENT

No.

PART

A-8148 DY-9A

proced

Merit

No.

SPEAKI

VIKING

PART

4J6

525J4

10J11

COILS

No.

(SV

No.

®

(Al

DAT

PAR!

S-5

DAT/

No.

(R

REPLA

MEISSI-

PART

Tri

t

PAGE

16

LLORY

(TNo.

1

-255

1

-521

11 31 235 1

1

II

215

3255

147

5347

015 11

INSTALLATION

Volume Attach

to

R1A

Attach

to

R1A Focus Attach

to

R2A Height - Note

Attach

to R3A Brightness Attach

to R4A Vert.

Hold

Attach

to

R5A

Vert.

Linearity

Attach

to

R6A

AGC

Attach

to

R7A

Contrast

-wire Buzz - wire Fringe

lock

Attach

to

RIGA

ACEMENT

DATA

TH No.

PART

BTS-1

BTB-22K BTS-100K BTS-100K BTS-33K BTS-47K BTS-10

BTA-680

BTS-220K BTS-3900 BTA-180K

BTS-220K BTS-220K BTS-680K BT3-2. BTS-100K BTS-10K BTB-22K BTS-680 BTS-680K BTS-6. BTA-680 BTS-22K BTS-470 BTS-470K BTS-100K BTS-470K BTS-56K BTS-220K BTS-47K BTS-22K

SPRAGUE PART

6TM-P1

MS-21 MS-21

4TM-S1 5HK-2D1

5HK-S1 5GA-T1

MS-31

6TM-D1

6TM-D1 2TM-P1

MS-37 4TM-D15

MS-21

4TM-S47

5GA-Q47 2TM-P15 2TM-S1

wound

IRC

No.

5

Mec

2Meg

8Meg

No.

NOTES

Note

NOTES

Note

PARTS

ITEM

RATING

No.

R73 H74 H75 R76 R77 R78 R79 R80 R81 RB2 R83 R84 R85 R86

ITEM

No.

Tl

6

Q Use

ITEM

No.

T2 T3

T4A

B

CD

Winding

Use ® See ©

Connect

(§)

Drill

ITEM

No.

9.

T5

ITEM

No.

SPl

3

ITEM

No.

LI

L2

L3

L4

L5

L6

L7A

4

5

B

C

D

E

F

G

OHMS

IOOKQ

100

Si

1.

8Meg

lOOKn

looon

560n

5600 IMeg IMeg

1

Meg

27Kn

loon

470n

47Kn

PRI

117VAC

@1.6A

SEC.

3

12.6VCT &J4.4A

only

one 5V

Series

6.3V

Use

universal

Horiz. Output Vert.

Output

Yoke-Horiz.

Vert.

and

terminal

enterng

evice original instruction

as

auto

one new

IMPEDANCE

PRI.

SEC.

4.

2n

4Kn

RATINGS

FIELD

SIZE

4"

5

1/4"

10"

USE

Series

Police Trap Shunt

Police Trap Series

Police Trap Shunt

Police Trap Series

Police

Trap

Ant,

, RF

Gr d

Coil

An

. , RF

Gr d

Coil

An

. , RF

Gr d

Coil

An

. , RF

Gr d

Coil

An . ,

RF

Grid Coil

Ant,

RF

Grid

Coil

Ant,

RF

Grid

Coil

WATT

RATING

SEC.

524VCT

.250ADC

SEC.

USE

Trans.

(13MH)

(42MH)

yoke

mounting

PM PM PM

REPLACEMENT

ZENITH

PART

63-1869

2

63-1744

2

63-1922

2

63-1870

B

I

63-965

1

63-1775

2

1

63-1775

|

63-1911 63-1911

2

63-1911

2

63-1845

2

63-1744

I I

63-1771

J

63-1194

1

SEC.

5VAC

®3A

4

SEC.

winding.

windings

for

mounting

Trans.

assembly

an yoe

cover

and

sheet

packed

transformer.

hole.

ZENITH

PART

No.

95-1379

V. C IMP.

4.

2n

4.

2il

4.2SJ

DC

PRI.

on on on on on on on on on on on on on

LIST

AND

DATA

BTS-100K BTS-100 BTS-I. BTS-100K BTA-1000 BTS-560 BTS-560

BTS-1 BTS-1 BTS-1

BTS-27K BTS-100 BTS-470 BTA-47K

1.

Some

2.

Some

3.

Some

4. Not

5. Add

IRC

PART

Meg Meg Meg

versions

versions versions

used

this

No.

8Meg

in all

resistor

No.

Note Note Note Note Note

TRANSFORMER

ZENITH PART

2

5

12.6VCT.

brackets.

No.

95-1375

TRANSFORMERS

ZENITH PART

No.

S-20993

(B

95-1377

95-1378 S-19898

©

part

#S-21078.

cover.

positioning

device.

with

unit

for

replacement

TRANSFORMER

REPLACEMENT

PART

No.

PART

A-2932

A-3879

REPLACEMENT

ZENITH

PART

No.

49-750 49-751

(D

49-752

®

RES.

SEC.

ZENITH PART

20-490

20-505

20-490

20-505

20-490

S-21192

S-21193

S-21194

S-21195

S-2I196

S-19847

S-19848

No.

DESCRIPTIONS

RESISTORS

NOTES

may use

versions.

for

Stancor

PART

A-8148

DY-9A

Merit

No.

SPEAKER

VIKING

PART

4J6

525J4

10J11

COILS

(cont)

ITEM

No.

R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 H97 R98 R99 R100

22KS7

resistor

IOKS2

resistor

15KS2

resistor

combination

(POWER)

Meril

No.

PART

(SWEEP

REPLACEMENT

Meril

No.

PART

®

MDF-72®

procedure,

(AUDIO

DATA

Triad

PART

No.

S-51X

DATA

QUAM

PART

No.

4A07

52A1

IOA3I

(RF-IF)

REPLACEMEN

MEISSNER

PART

No.

RATING

OHMS

22Kn

lOKn

47Kn

isosn eeoon

9in

5%

470KH

i2Kn

22Kn 33Kn

lOOKn

330n

IOKH

8.

2n

in

this

application.

in

this

application.

in

this

application.

units

only.

REPLACEMENT

Triad

PART

No.

CIRCUITS)

Triad

PART

No.

DA-36 A-108X®

Y-17-1®

OUTPUT)

PART

No.

Z1117

No.

(D

Used

M2229RZ,

(2)

M2250RU,

T

DATA

MERIT

PART

No.

DATA

N->

DATA

No.

Used

(Continued)

REPLACEMENT ZENITH PART

WATT

®

PART

No.

63-1842

2

63-2145

1

63-1856

1

63-2313

L

63-1820

J.

63-1744

2

63-1898

2

63-1091

1

63-958

1

63-1849

1

63-1870

1

63-3162

^

i

RCA

No.

RCA

No.

®

M2229EZ

MILLER

No.

NOTES

Channel

PART

Halldorson

PART

DF602

TYPE

211D2

No.

24S60

in

Models M2228RZ,

and

in

Models M2250RZ, M2250EZ,

M2250EU, M2252RZ,

PART

DATA

IRC

PART

BTS-22K BTB-10K BTS-47K BTA-I80K BTS-6800

BTS-91 BTS-470K BTB-12K BTA-22K

BTA-33K BTA-100K BT.A-330 BTS-10K

No.

®

NOTES

and

NOTES

2

3

4

5

6

7

8

No.

PART

26R33

0)®)®

PART

Y-7

M2252EZ

®

No.

NOTES

Note Note

Note

ITEM

USE

No.

H

Ant.

, RF

Grid

Coil

I

Anl. , RF

Grid

Coil

J

Ant. , RF

Grid Coil

K

Ant , RF

Grid

Coil

L

Ant

, RF

Grid

Coil

L8

Fil.

Choke

L9

Nnut

4

*

* t *

ITEM

No.

~L32~

L10 L11A

B

C

D

Grid, Coil

E

RF, Grid, Coil

F

RF, Grid, Coil

G

RF, Grid, Coil

H

HF, Grid, Coil

I

RF, Grid, Coil

J

HF, Grid, Coll

K

RF, Grid, Osc. Coil

L

RF, Grid , Osc. Coil

L12

L13 L14

L15 L16 L17 LIB

Adj.

L19 L20 L21 L22 L23

Series

L24

Shunt

L25

Series

L26

4.

L27

Series ing

Sound

L28 L29

Quadrature Coll

L30

Horiz.

LSI

Anti-ringing

' Use

trap

Detune

Series

Parallel

TOTAL DIRECT

CURRENT

.250ADC

Q)

Drill

RF

Coil

RF,

Mixer Grid, Coll RF,

Mixer Grid, Coil RF,

Mixer

Gr

id,

Coil RF,

Mixer

Osc.

Mixer

Osc.

Mixer

Osc.

Mixer

Osc.

Mixer

Osc.

Mixer

Osc.

Mixer

Osc.

Mixer

Mixer Coil Mixer Osc.

Trimmg Coil IF

Coil Conv. 1st

Video

Sound

39.

75MCTrap

2nd

Video

3rd

Video

4th

Video

ing

Coil

ing

Coll

ing

Coil

5MC

Coil

winding

trap.

with

one

Coll

Osc.

Grid

Coll

Plate

Peak-

Trap

Peak-

IF

Osc.

a 5.

IF

IF IF

IF

and

6KS2

6KS1

a . 01

RATINGS

RESISTANCE

sen

new

DC

PRI.

on on on on on

on on

on on on on on on on on on on

on on on

on on

on on on .in .in on .in .in .an

5.

sn

5.

sn

1.5(1

I2n sn

.sn

4.

en

i48n

47n

drill

mounting

resistor.

capacitor.

D.

C.

mounting

RES.

hole

SEC.

.in .in

.2ft

I.

2ft

.sn

INDUC

(o

ioa

a

i.'

.

PTIONS

(Continued)

ont)

WATT

REPLACEMENT

ZENITH

PART

63-1842 63-2145 63-1856 63-2313 63-1820 63-1744 63-1898 63-1091 63-958 63-1849 63-1870 63-3162

22KS2 lOKn 47KO 180KS! 6800S!

91S!

470KS!

12Kn

22KS2 33KH 100KS! 330S!

lOKn

8.

>r

in

T

in

ir

in

its

OHMS

5%

2n

this

this this

only.

RATING

application. application, application.

>WER)

.ACEMENT

DATA

No

TYPE

RCA

No.

Triad

PART

lo

CIRCUITS)

ACEMENT

DATA

t

12®

Triad

PART

DA-36 A-108X®

Y-17-1®

No.

RCA

TYPE

No.

®

2L1D2

(J)

OUTPUT)

PART

No.

PART

No.

Z1117

24S60

,M

NOTES

No.

CD

Used

in

Models

M2229RZ,

and

in

Models

M2250EU,

MILLER

PART

M2229EZ

No.

DATA

PART

(2

M2250RU,

MERIT

No.

Used

No.

Halldorson

PART

Halldorson

PART

DF602

M2228RZ,

M2250RZ,

M2252RZ,

DATA

IRC

PART

No.

BTS-22K BTB-10K BTS-47K BTA-180K BTS-6800 BTS-91 BTS-470K BTB-12K BTA-22K BTA-33K BTA-100K BT.A-330 BTS-10K

No.

®

NOTES

M2250EZ,

and

NOTES

PART

26R33

PART

Y-7

®

M2252EZ

No.

NOTES

Note Note Note

COILS (cont)

ITEM

USE

No.

H

AnL

, RF

Grid Coil

I

Ant.,

HF

Grid Coil

J

AnL,

RF

Grid Coil

K

AnL

, RF

Grid

Coil

L

AnL,

RF

Grid

Coil

L8

Fil.

Choke

L9

Neut.

4 4 4

L10 L11A

B

C

D

E

F

G

H

I

J

K

L

L12

L13 L14

L15 L16 L17 L18 L19 L20 L21 L22 L23

L24

L25

L26 L27

L28 L29

L30

•LSI

*

Use

Detune

•

Series

t

Parallel

*

Parallel

Coll

RF

Coil

RF,

Mixer Grid, Osc. Coil RF,

Mixer Grid,

Osc. Coil RF,

Mixer Grid, Osc. Coil RF,

Mixer Grid,

Osc. Coil RF,

Mixer

Grid,

Osc.

Coil RF,

Mixer Grid, Osc. Coil

RF,

Mixer Grid, Osc. Coil RF,

Mixer Grid,

Osc. Coil RF,

Mixer

Grid,

Osc. Coil RF,

Mixer Grid , Osc. Coil

Mixer Grid

Coil

Mixer

Coil

Osc.

Trimma Coil IF

Coil

Conv.

Plate

1st

Video

Adj.

Sound

39.

75MCTrap

2nd

Video

3rd

Video

4th

Video

Series

Peak-

ing

Coil

Shunt

Peak-

ing

Coil

Series

Peak-

ing

Coil

4.

SMC

Trap

Series

Peak-

ing

Coil

Sound

IF Quadrature Coil Horiz.

Osc. Anti-ringing coil

trap

winding

trap.

with

a 5.

with

IF

IF IF IF

a 5.

a . 01

and

6KS2

6KSi

DC

PRI.

on on on on

On

on on on

on

OS!

on

on on

.

in

.in on .in .in

.2n

5.

5n

5.

5S!

l.

to

I2n sn

.30

4.

en

I48n

47n

drill

resistor.

capacitor.

RES.

SEC.

.in .in .2n

1.

2n

.3S!

mounting

ZENITH

PART

No.

S-19849

S-19850

S

-198

51

S-19852

S-19853

20-391 20-431 20-484

S-19862

S-19863

S-19864

S-19865

S-19866

S-19867

S-19868

S-19869

S

-19870

S-19871

S-19872

S-19873

20-485

S-20181

20-447 S-18859 S-20902 S-21019 S-18210 S-20622 S-17907 S-19952 S-20623

S-17912

S-21562

5-15128 S-21492

S-21563

S-20219

S-19020 S-19743

S-21012

hole.

'

REPLACEMENT

MEISSNER

PART

17-4502 17-4501

19-3160

19-1005

19-3125

16-3445

20-1004 19-1577

19-3160

»

«

t

.

No.

DATA

PART

TV-184

TV-151

TV-184

MERIT

No.

•

.

PART

6232

6232 6233

6219

4644

4612

6153

1470

6180

MILLER

No.

m

•

.

t

.

NOTES

Channel

9

Channel

10

Channel

11

Channel

12

Channel

13

Channel

2

Channel

3

Channel

4

Channel

5

Channel

6

Channel

7

Channel

8

Channel

9

Channel

10

Channel

11

Channel

12

Channel

13

Includes

trap

145

Microhenries

159

Microhenries;

wound

on 2.

7Knresistor

12

Microhenries

136

Microhenriesjwound

on

5. 6Kn

resistor

Tapped Q 58n

163

Microhenries;

on

. 01

cap; used

chassis

I9M20Z,

19M20UZ,

19M21UZ,

19M20,

19M21,

19M21U,

20M21, 20M21U,

20M21Z

wound

in

19M21Z,

19M20U,

'

V)

—

01

«o

K) O

«O K)

C

N

N m

Z

Channel

FILTER

ZENITH PART

No.

CHOKE

PART

C-23260)

REPLACEMENT

No.

C-2996Q)

PART

Merit

No.

DATA

PART

C-23X

Triad

No.

Halldorson

PART

No.

C5037

CD

Thordarson

PART

No.

26C44

PAGE

17

2

3

4

5

6

7

8

ITEM

No.

L32

TOTAL DIRECT

CURRENT

.250ADC

{$)

Drill

one

RATINGS

D.

RESISTANCE

66n

new

mounting

INDUCTANCE

C.

[0

CURRENT

1000

'XJ

1.7

Hy.

hole

.

95-1376

ITEM

No.

M2

M3 M4

M5 M6 M7 M8 M9 M10 Bl

No.

ITEM

No.

Ml

Slo-Blo

1N60

Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet

PARTS LIST

TYPE

RATING

3AG

.175A

125V

ORIG.

TYPE

Dial

Tuner Tuner Tuner Tuner

Tuner Video Switch Centering Ion

Trap Integrator Width Adjustment Trimmer Cabinet

Cabinet

Cabinet Cabinet Cabinet

Cabinet Cabinet

Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet Cabinet

Safety

Safety Safety Safety Safety

Safety Safety Mask

Mask Mask

PART

Light

Del.

Glass

Glass Glass Glass Glass

Glass Glass

103-1

NAME

Assy.

Device

Cap.

ZENITH

PART

No.

136-21

100-166 S-21060 S-20989 S-19970 S-21000 S-19670 S-21042 85-546 S-19898 S

87-1

22-2398 14-1648E

14-1648R

14-1650R 14-1651E 14-1651R

14-1652R 14-1652E

14-1655E 14-1655R 14-1710R 14-1740E 14-1740R 14-1773E

14-1773R 14-1742E 14-1742R 14-1729 14-1730 14-1731 14-1732 14-1750 14-1751 14-1741E 14-1741H

192-176

192-168

192-175

192-178

192-154

192-91

192-188

192-190

196-248

196-259

196-261

ZENITH PART

FUSE

REPLACEMENT

ZENITH

PART

-17164

or

AND

DESCRIPTIONS

FUSES

No.

HOLDER

83-1883

313.

[175MA-3AG

Slo-Blo)

CRYSTAL

DATA

SYLVANIA

PART

1N60

or

1N132

No.

FEDERAL

PART

1N60

1N64A

MISCELLANEOUS

No.

Not

used

in all VHF-UHF - Chassis VHF-

Chassis

VHF-UHF - Chassis

UHF - Chassis

UHF - Chassis Includes

M2, UHF-VHF Includes

yoke

Horiz.

Drive

Blonde - Models

RI800EUZ, M2229E, M2230E, M2249E, M2250E, M2252E

Mahogany - Models

R1800RUZ,

M2252R Mahogany - Models Blonde - Models Mahogany - Models M2230RU Mahogany - Models M2249RZ, Blonde - Models Blonde - Models Mahogany - Models Mahogany - Model Blonde - Models

Mahogany - Models

Blonde - Models

Mahogany - Models Blonde - Models Mahogany - Models Metal - Models Metal - Models Metal - Models Metal - Models Models

R2249HZ,

Models

R2249EZ, R2249EUZ

Blonde - Models

Mahogany - Models

Models

M1800E, M1800R, M1800RZ, M1800EZ,

M1800HU,

R1800HUZ

Models

M2228H,

M2229EZ, M2228RU, M2229RU, R2229RZ, R2230EZ, R2230RZ, R2229RUZ, R2249EUZ

Models

M2250RZ, M2250EZ,

M2252R.

M2252HZ,

Models

M2230RZ2, M2230E, M2230R, M2250E, M2250R, M2230HZ, Models

M2249E, M2249R, M2249RZ, M2249EZ,

192-77

M2249RU,

Models Models Models Models EUZ,

R22b8RUZ,

Models

R1812EZ,

R2250EZ,

R2257EZ,

R2250EZ,

R2257EZ,

H2257EZ,

(Continued)

REPLACEMENT

FUSE

175

DIODES

No.

or

L22, L23,

changeover - Chassis

cover

M2228R, M2229R, M2230R, M2249R, M2250H,

M2249RU

M1800EU,

R2229EUZ,

M2230EZ, M2230RU, M2230EU M2249EU

DATA

LITTELFUSE

PART

No.

Video

HOLDER

357001

MDL

Detector

FUSE

175

1000

NOTES

PART

BUSS

NOTES

models.

19M20, 19M21

19M20U, 19M21U

19M20Z, 19M21Z,

19M20U,

19M21U

19M21UZ

L24,

M1800EZ, M1800E,

19M21UZ

C81,

C82

19M20U, 19M21U

M1800EU,

R1800EZ,

M1800RZ, M1800R, M1800RU, R1800RZ,

M2228RZ,

M2229EZ,

M2229RZ,

M2228RU

M2229EU,

M2229RU,

M2230EZ, M2230EU

M2230RZ,

M2250RZ, M2250RUZ, M2250RU,

M2250EZ, M2250EU, M2252EZ, M2252EU

M2252RZ, M2252RU

M2230RZ2

H2258EUZ,

R2258RUZ, R2258RZ

H2257EZ,

R2257EUZ

R2257RZ,

R1812EZ,

R1812EUZ

R1812RZ, H2229RZ, R2229RUZ H2229EZ,

R2229EUZ R2230RZ, R2230RUZ R2230EZ,

R2230EUZ

R2249RUZ

S2250EZ,

R2250EUZ

R2250RZ, R2250RUZ

M2249EZ.M2249EU

R2258EZ

S2257RUZ

R1812RUZ

R1800EZ, R1800EUZ, R1800RZ,

M2228RZ, M2229E, M2229R, M2229RZ,

M2252EZ, M2252RU, M2252EU

RZ,

R1812RUZ, RZ, HZ, RZ, EUZ

RUZ

EUZ

R2230RUZ,

M2250RU,

R2258EZ,

EUZ,

RUZ

R2258EZ,

M2229EU,

H2249EZ,

R2229EZ,

R2249HZ,

R2230EUZ.R2249RUZ,

M2250EU,

EUZ HZ,

R2258RUZ,

RZ,

R2230RUZ,

No.

4405

M2252E,

EUZ

HOLDER

PAGE

18

CHASSIS

BOTTOM

VIEW-TRANS.,

INDUCTOR

AND

ALIGNMENT

IDENTIFICATION

LOSS

OF

HIGH

VOLTAGE

Check

by

substitution

Check

Ml

fuse.

If

Satisfactory

Check

T2,

T4A,

C79

and

RASTER, Follow

RASTER, PICTURE,

Follow RASTER, Check

components

R2,

other associated components.

SOUND,

NO

procedure

outlined

procedure

outlined

NO

SOUND,

by

substitution

for

failure

V13,

R94,

PICTURE

NO

SOUND

NO

VI,

V2,

or

change

V14,

V15,

R95,

C78,

under

"Loss

under "Weak

PICTURE

V3,

V4, V5 and V6.

of

value.

Symptoms

TROUBLE

V16 and

V17.

Check C77,

C71,

components.

of

Video".

or No

shown

Check

waveform

If

Unsatisfactory

L30, C74, C72,

R86 and

Sound".

Check video

are

assumed

SHOOTING

HIGH

W17.

C73

C78,

other

associated

GENERAL

IF

and are not

indicative

AIDS (cont)

VOLTAGE

INSUFFICIENT Check

by

substitution

associated

components.

Check

by

substitution

filament.

Check

NO

RASTER,

Follow procedure outlined under

KEYSTONE Check INTERMITTENT Check

of the

EFFECT

T4 and

high

voltage section

quality

HIGH

R94 and

NO

SOUND

its

associated

STREAKS

and

workmanship

VOLTAGE V14,

V15,

V16,

other

components.

for

V16

and

V17 and

associated

"Dead

corona

discharge

of

this

V18. Check C77,

V18. Check

components.

Set".

and

equipment.

R94 and

resistance

arcing.

wire

other

to

V17

o 10

N

s

I

IS

N

5

©/

-

VHP

I

TUNER

TOP

VIEW

PAGE

21

TUNER

OSCILLATOR

For

touch-up adjustment

to

set. Adjustments

the

selector

switch

making

adjustments).

PICTURE

TUBE

To

clean safety

each

knob.

Remove

PICTURE

TUBE

To

remove picture

tering magnet.

SERVICE

ADJUSTMENT

BULLS

EYE

ADJ.

ADJUSTMENTS

of the VHF

are

made thru

is

turned

Use

alignment wrench 68-21

SAFETY GLASS

glass,

remove 2 control

both

rings,

REMOVAL

tube

it is

necessary

Remove 1 screw

LOCATION

HORIZ

HOLD

SERVICING

tuner

oscillator

the

hole marked

to

each channel. (Fine tuning control must

CLEANING

knobs

from

then

remove safety

to

remove safety

from

top

front

circuit,

"Bull's

for

adjustments.

each

glass.

of

tube

IN THE

it is

necessary

Eye

Adjustment"

side

of

front

glass,

rear

mount.

Remove

FIELD

to and are

be set to its

panel.

Remove 2 screws

cover, tube

tube.

remove

socket,

FRONT PANEL SERVICE CONTROLS

HEIGHT BRIGHTNESS VERT VERT CONTRAST

REAR

PANEL SERVICE CONTROLS

HOLD

LINEARITY DELAY

rear

cover supply power

accessible

center

of its

HV

one at a

range before

located under

lead,

ion

AGE

time

trap

as

and

FINE

TUNING

cen-

BUZZ FRINGE

SPECIAL

ADJUSTMENTS - AGO

Turn

the set on and

the

AGC

turn

control clockwise

FRINGE

LOCK

Turn

the

picture

synchronization

Slightly

retouch HORIZONTAL Adjustment horizontal hold sweep

circuit adjustments

SOUND

IF

Adjust

the

are

unsatisfactory FUSES One

fuse

is CENTERING Centering

flush

against

tune

in a TV

delay control

fringe lock control

DETECTOR

buzz control located

is

slowly for

clearest

ADJUSTMENT

and

the

fringe

lock

OSCILLATOR

of the

horizontal

control

(L30) until picture synchronizes horizontally.

on

BUZZ

see

alignment instructions

used

for

horizontal sweep

accomplished mechanically

the

deflection

yoke.

DISASSEMBLY

LOCK

DELAY

ADJUSTMENT

signal

and

observe

the

counter clockwise until picture

picture

and

best

sound.

to 1/4

turn

from

full

clockwise position. Adjust

check stability

control

FIELD

oscillator

page

ADJUSTMENT

on the

adjustment,

ADJUSTMENT

circuit

11.

rear

circuit

by

Rotate

the two

by

switching

if

necessary,

can be

made

apron

of the

on

pages

6 and 7.

protection. (For location

adjusting

two

rings

around

INSTRUCTIONS

picture.

distorts

off

channel

from

chassis

magnetic

for

the

Starting

and

for

maximum

the

front If

maximum

rings

neck

from

the

buzz

is

the

back again.

panel

results

volume

see

tube placement

around

of the

tube until

full

clockwise position turn

heard

in the

vertical

and

horizontal hold

stability

while testing

service

control.

cannot

be

obtained

and

minimum

chart).

the

neck

of the

the

picture

sound. Then

as

above.

Adjust

the

see

horizontal

buzz.

picture

tube,

is

properly

for

If

results

located

centered.

PAGE

22

1.

Remove 5 push-on type control knobs

2.

Remove 5 wood

3.

Disconnect speaker

4.

Remove

4.chassis

screws.

leads,

bolts.

Remove

and

Remove

from

front

rear

cover.

remove 2 speaker

chassis.

panel.

nuts.

Remove

speaker.

SHATT

IN MAXIMUM

COUNTER CLOCKWISE

POSITION.

DRIVE

CORD STRINGING

PAGE

23

Zenith 19m20 schematic

Specifications and Main Features

Frequently Asked Questions

User Manual