Philco g4710 schematic

PHOTO

s s

o<

FACT*

with

Folder

ClRCUIIRACE*

MODEL

UG471OL,

UG-47IOL

PHILCO

(Ch.

9L38)

MODELS G471OL,

M,

UG472OL, M (Ch.

M,

G472OL,

9L38,

A,

AU, U)

M,

<fr

-I

Is-

o o

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</}

N

w

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So

03

8-

y

o

D

-

Philco

VHF

MODELS

Corp.,

Ch.

TRADE

NAME

MANUFACTURER TYPE

SET

TUBES POWER

TUNING

Television

VHF Ch.

SUPPLY 110-120 Volts

RANGE

Channels 2 thru

DISASSEMBLY

CHASSIS

REMOVAL

1.

Remove 4 front

2.

Remove picture tube plug from

3.

Remove 9 wood

rear

cover.

4.

Remove speaker

5.

Remove 3 metal

6.

Extend antenna outward.

7.

Remove PICTURE Yoke

ing 4 metal

1.

2.

3.

4.

5.

6.

7.

not guaranty and

these to

J94

TUBE

and

Video Amplifier

Remove 2 small

strip.

Remove spring holding warp around

the

bottom. Remove

Remove 2 metal

strap

at the Remove front Remove snap-in Remove 2 metal

to

rear

shell.

bottom

slots.

Remove 2 small

tom

support

8.

Remove

HOWARD

The

listing

constitute

by

suitability

parts

Howard

W.

MODEL

and 4

side

screws

holding

leads. screws

holding

chassis,

HOUSING

screws

bottom. Remove

mask.

Remove support

bracket.

rear

shell.

of any

in any

Howard

of

have been compiled

Sams & Co.,

DISASSEMBLY

chassis

holding

rear

metal

screws

plastic

screws

now

metal

trim

screws

now

metal

screws

available replacement

case a recommendation, warranty

W.

Sams

such replacement part.

Inc.,

UG-4710L push-on type knobs.

cover

trim

visible

caps

visible

W.

& Co. ,

from

CAUTION

ONE

SIDE

OF AC

LINE

CONNECTED

CHASSIS

G4710L,

G4710M

G4720L,

Tloga & "C"

Receiver With 9L38 - Seventeen UHF-VHF 9L38A - Twenty-one UHF-VHF

AC, 60

13

SERVICl

9L38

G4720M

9L38A

Streets,

thru

IN

THE

Philadelphia,

Picture

83

UHF,

Fl

ELD

Portable

Cycle RATING

VHF,

14

NG

Tube

170

Video

LOCATED

Pa.

IF 45.

INSTRUCTIONS

CHASSIS REMOVAL MODEL UG-4720

1.

Remove 4 amplifier

2.

the

rear.

rear

cover.

chassis

at the

are

accessible

to

housing.

holding bottom

plastic

strip.

holding

strap.

on

side

support

holding support

arms

by

turning

holding

rear

SAMS

part

Inc.

, as to the

The

information

by the

manufacturers

Remove

rear.

by

remov-

metal

trim

strip

plastic

shell

arms.

arms

to

line

shell

to

&

herein does

quality

numbers

furnished

the

at

up

bot-

CO.,

or

of

Remove

3.

Slide

cabinet

AC

interlock

The

entire

posed

4.

Remove

5.

Disconnect

lamp

removes

6.

Unsolder

audio

7.

The

bottom

tom. Remove amplifier.

8.

Remove

9.

Remove 2 front

bottom.

10.

Remove

11.

Remove left hand back

and

out.

12.

Remove 2 screws

screw

13.

Remove

its

socket

14.

Lift

rear

INC. Indianapolis

the

particular duction pictorial liability tion

Indianapolis 6, Indiana.

DATE

5-59

TO

CHASSIS

MODELS UG4710L,

UG4720L,

Ch.

9L38U - Eighteen

Ch.

9L38AU - Twenty-two

Watts,

1. 65

75MC, Sound

ON

two top

for

the 2

leads.

TV

at

or

content,

is

Amp. @ 117

PAGE

3

retaining

top

back

and to

TV and

service.

screws

TV

a.c.,

from front

two

leads

lip

of

chassis

knobs.

chassis

the 2

screws

right

top and 1

6AW8A

(Video

just

to

rear

of TV

chassis

type

use, without

in any

assumed

with

UG4710M

UG4720M

IF

knobs.

free

audio

from

phono

that connect

from

of

express

9L38U

9L38AU

Volts

41.

screws

(approximately

guides

amplifier

top input

clip.

fits

mounting

from

section

rear

screw

Amp.-NoiseInverter)tube

speaker.

up and

replacement

manner, respect

Printed

AC

25MC

(Intercarrler)

at top

at

center

chassis

edge

of

and

speaker

to

remote

into a groove

screws

top

rear

retaining

(3

screws).

chassis

from left

out.

6,

part

permission,

is

prohibited.

to the use of the

W.

1") to

chassis.

mounting

Indiana

Sams & Co.,

in U.S. of America

rear.

disconnect

top

of

are now ex-

leads.

socket

of

cabinet bot-

from

Lift back

rear).

listed.

of

SET

CHASSIS

each

side.

Pilot

and TV

cabinet

plate.

strip

from

Repro-

editorial

No

patent

informa-

441

up

(1

or

Inc.,

FOLDER

Is

e

o o

r

•**

*

-

J

o

"o

•!"

?•$

?e

««

>

C

2

SOUND

©3AU6

IF

TOR80.

1704

JUNCT

BO

PICTURE TERMINAL HV

LEAD

TUBE

#17

©S3.3meg

JUMPER

CABLE

CHASSIS

GUIDE

SW

ON

VOLUME

ON

115V

9L38A

SWITCH

ONLY

1000 1 IjBUIZ

mml_L'

60001W

,ffi\

l^

39000

PAGE

DC

COIL

RESISTANCE

NOT

SHOWN

ON

SCHEMATIC DIAGRAM

(CONTROL

TO

SIGNAL

1

DC

voltmeter; per

bottom

VIEWED

TAKEN

PRODUCE

AT

voltage

AC

volt.

of

socket

®

Howard

50

PICTURE TUBE

measurements

voltage

W.

WAVEFORMS SET PEAK

A

PHOTOFACT STANDARD

2

TO

TERMINALS 3 &d

OF

TUNER

POWER

4

VALUES UNDER

FROM SHAFT

WITH

VOLTS PEAK-TO-

measured

5

Sams & Co.,

CONTROLS

GRID

taken with

vacuum

at

NOTATION

Inc.

ONE OHM

END)

1000

ohms

SCHEMATIC

1959

tube

3. unless

SOCKET

Meosured

4.

Line Voltage

All

controls

3000CJ10W

ADDITIONAL

SCHEMATICS

TUNER

76-I1547-8IT-69K)

VHF

with

UHF

provisions

CH.

9L38A.AU.18

TO

TERMI

OF

TUf€R

SOCKET

5

VHF..

UHF..

TUNER76-11450-7IT-68G) TUNER76-10391-1IT-Z7FI ALT.

CIRCUITS

oth

PAGE

7

16

NAL

5

POWER

VC3

NUMBERS

ASSIGNED TRANSFORMERS PONENT

REPLACEMENT

THE

UNIT.

,

,.

/

16VAC I 22VAC V 27VAC

/

ilOOOmmf

TO

COILS,

SWITCHES,

ARE TO

FACILITATE

AND MAY NOT

PLUGS,

CIRCUIT

NECESSARILY

SOCKETS,

TRACING

BE

OR

FOUND

AND

COM-

ON

UDIO S)

OUTPUT

5AQ5

TAKEN TUBE AND

HEIGHT

AT

CENTER

WITH

(V10A)

PIN 6 OF SHORTED CONTROL

OF

ROTATION.

VERT

TO

(R3B)

MULT

GROUND,

SET

TO

PICTURE

MOUNTING

TUBE

BAND

PHILCO

UG471OL,

MODELS M,

G471OL,

UG4720L, M (Ch.

M,

G472OL,

9L38,

A,

M,

AU,

16

15

REMOTE PICTURE

w

CONNECTOR

U)

PAGE

TUBE

19

The

This

POWER No

SWEEP No

No Poor Poor

Narrow Vert, Horlz.

following

raster,

vertical

receiver

chart

lists

SUPPLY FAILURE

no

sound - Fusible

FAILURE

has

sound

deflection

vert,

linearity

horlz.

linearity

picture

- VU,

off

freq. - V10

off

freq.-

VU

employs

HORIZ

HOLD

HOHIZ

RANGE

/

.

H

— 1 1

NDICATIS

f— C P N OH

1

CHANf€L

tubes

whose

failures

Resistor

- V9,

VU,

V12, V13,

- V10

or

foldover - V10

or

foldover

V12,

tubes

- VU,

V13, Rectifiers

used

in a

VERT

HOLD

BRIGHTUSS

HEIGHT

VEST

LIN

OFF-ONIPUSHI-VOL

FTx-

CONTRAST

v-p,

SELECTOR

UaZi)

L

FINE

1st

&.«

1!

I

UHF

TUNING

/^\

LOCAL-DISTANCE — '

j-f

•••

TUBE

are

(5.

6ft),

V14,

V12,

V13

(B+)

series

fUament

TUBE

PLACEMENT CHART

PICTURETUBE ^ VtRT

CENTERING

YOKE

VIS

C

IZ

LIN

J1EAPJ/

w

LOCAT

"vaY

HO

BLANK

NG

KEYv

VI

DEO

1

JflcaJ

Rf

AMP

M1XER-OSC

LHFOSC

c:::

\E

"

WtRlr*G

INB2A I W03

MOUNTED

^o1'""

/,

C W

,^r\F

^

2nd

VIDEO

^

I

I!04GT j \^_^^

DAW

{^}-

\—

_

PICTURE

/^

HORIZ

JCB6

»"sr

^-^fflS.

IF

VIDtO

DO

~- ^ -^(^vT^

rt§b

ni*,MixEfii

\w«y

HVRECT

>5u^

'

1G3GV

\

'"GT

y

\

12D06A/

]

TL8E 4 YOKE

RECPT

V

FAILURE CHECK CHART

most

likely

to

produce

indicated

symptoms. Refer

LOSS

OF

Rectifiers

V15,

Rectifiers

network,

(B+)

an

(B+)

open

filament in any

No

pic,

no

No

pic,

no

No

pic,

has

Has

pic,

no

Overloaded SYNC

FAILURE

No

vert,

sync

No

horlz.

No

vert,

or

tube

PICTURE

sound, sound,

sound, sound-

picture

sync

horiz.

will

ON

PICTURE

TUflt

1

VIDEOOUTPUT

s™»,f,»

VERT

5.60FUSIBII

/

^\l"""'^vj

/f

Q^>

//

AUDIO

//

HORIZ

/'vi!

has has

has

- V9

- V9 sync

cause

(2J

N^

MULT

(S)

RESISTOR

IPLUG-INJ

(i>J

OUTPUT

SYNC

FREO

HORIZAfC

^(S)

HORIZ

—

to

tube placement

OR

SOUND raster - VI, snow - V201, V202,

raster

- V4, V5, V15

V6, V7, V8

- V9

the set to be

S

SEP

MULT

L

nmJ

-•'

OUIPU1

chart

V2, V3

VI,

inoperative. (See

A

for

(UHF

location

V203),

circuit

and

type

Diode

below.)

of

tube.

(UHF

^

Mixer)

UG471OL,

M

>

K)

o

r-

*>

k-

*

00

s^

Q

o

PHILCO

f

2

O

4000

COLD

lln

HOT

TUNER Touch-up

removing

SAFETY NOTE:

AGC

The AGC may be location,

The the

The see

HIDDEN

The inner

knobs.

l?n

OSCILLATOR

adjustment the

Channel

GLASS

Use

only mild soap

see

tube placement

focus

may be

Focus

Adjustment

width

may be

tube placement

ADJUSTMENTS

Vertical

Linearity,

shafts beneath

80

ADJUSTMENTS

of the

VHF

Selector

Oscillator

and

Fine Tuning knobs.

CLEANING

and

water

to

varied

by a

Local-Distance

chart.)

varied

in

steps

terminals.

varied

chart.)

the

by the

by

Width

control.

Height

and

Horizontal Range

Brightness, Vertical & Horizontal

SERVICING

is

possible

by

clean.

switch.

(For

position

of a

plug

in

(For

location,

are

the

IN THE

HORIZONTAL Set

Horizontal

and

adjust

chronizes SOUND To

eliminate MINIMUM tube

placement chart.)

FUSE

DEVICE

A

5.

6Si

supply

protection. CENTERING Centering

cal and

ing.

PINCUSHION One

magnet

SET

441

FOLDER

4A3

FIELD

OSCILLATOR FIELD ADJUSTMENTS Hold

to the

center

Horizontal

horizontally.

IF

DETECTOR

intercarrier

buzz

fusible

resistor

is

accomplished

Horizontal

CORRECTION

is

provided

and

maximum sound. (For

(For location,

Centering

2

of its

Range inner shaft until picture syn-

BUZZ

ADJUSTMENT

buzz, adjust

(R78)

is

used see

mechanically

magnets

to

correct

for

4A3

4A5

range.

the

Buzz control

for low

tube

placement

by

located

Horizontal

4A3 5A4

9A4-5

Remove knob

location,

adjusting

for

see

voltage power

chart.)

Verti-

on

yoke

hous-

Linearity.

5A4

PAGE

O

5

3

K>

3

CircuiTrace

Numbers 1 thru

10

0

A

Howard

W.

A201

Sams

MIXER

PLATE

COIL

Photo

VIDEO

PRINTED

IF

BOARD

ARROWS

POINTING

INDICATING

TO PIN 1

UNLESS OTHERWISE

TUBE

LOCATIONS

INDICATED

ARE

PAGE

TUNER

4

76-11547-8

TOP

VIEW

UHF

F 1 NPUT

f

:k-

A

PHOTOFACT STANDARD

@Howordw-5c"1s&c°-'nc-1959

PART*

76-11547-8

T-69K

AGCH

B+

1 1 1

1

|

j

4^3

NOTATION

iFILS

VHF

IF

OUTPUT

©

_^

SCHEMATIC

VHF

€Z

UHF

TUNER

TOP

VIEW

PART*

76-10391-1

T-27F

UHF

-

-*_,

TUNER

(n

ynv

A A

FILS 8 +

OUTPUT

'v

'W

'lOCZfrO

<

with

'8ci6

CHANNEL SELECTOR SWITCH SHOWN

UHF

provisions 76-11547-8

'HD) w 'loc/fron

7W

y10LZfr9

S13QOW

HIGH CHANNEL BANDWIDTH GIMMICK

WIRE

IN

yw

ADJUST

CHANNEL

13

POSITION

'

ODIIHd

(T-69K)

—

^

-T

lOOOmmf

2VAC

p

TO

UHF

FILAMENTS

TUNER

ITEM

No.

V201

V202

ITEM

No.

C201

C202 C203 C204 0205 C206 C207 C208 C209

C210 C211 C212 C213 C214 C215 C216 C217 C218 C219

C220

C221

C222 C223 C224 C225 C226 C227 C228 C229 C230

C231

C232 C233 C234 C235

ITEM

No.

R201

R202 R203 R204 R205 R206 R207 R208

ITEM

No.

L201

L202 L203 L204 L205 L206 L207

L208 L209

L210

K201

K202

ITEM

M201

ITEM

No.

RF

Amp.

Mixer-Osc.

RATING

CAP.

VOLT

5 5 39 5 5 1000

2.2 150

3.9 5 65 330 .5-3

7.5 150

1.0 27 27

3.9 1000

2.2 1000 680 1000 150 1000 330 1000 .68 30 15 .5-3 250 1000 1000

RATING

OHMS

isoon

10K

470K

5%

470K

5%

leoon

100 K 47K 15K

USE

RF

Choke

RF

Choke

IF

Trap

VHF

Ant.

VHF

Ant.

RF

Choke

Ant.

Colls

Cathode

Choke

RF

Colls

MLxer

Grid

Colls

Antenna Antenna

ORIG.

TYPE

1N82A

TUNER

TUBES

USE

PHILCO

PART

30-1224-78 30-1224-78 62-039409011 30-1224-78 30-1224-78 30-1268-7 30-1221-6 30-1268-6 30-1221-14 30-1268-5 30-1268-2 30-1265-2 31-6520-25 30-1251-19 30-1268-6 30-1224-82 30-1268-4 30-1224-146 30-1221-14 30-1268-7

30-1224-143 30-1238-13 30-1238-22 30-1268-7 30-1265-3 30-1268-7 30-1265-2 30-1268-7 30-1221-11 76-10170 30-1224-133 31-6520-1 30-1261 30-1258 30-1258

PHILCO

PART

WATT

66-2158340 66-3108340 66-4478240 66-4478240

1

66-2184340 66-4108340 66-3475340

2

66-3158340

PHILCO

PART

32-4645-37 32-4645-37 32-4719-2

Trans.

32-4725

Trans.

32-4725 32-4726-10 76-10112

32-4652-51 328-0116

76-10110

USE

Isolation

Network

Isolation

Network

PHILCO

PART

No.

34-8027

PARTS

(GENERAL

TYPE

4BC8

5X8

Capacity

Capacitors,

No.

SIS SI

DI-000039

SIB SIS

EF-001 NPO-SI

BPD-00033

SI 27

EF-001 NPO-SI BPD-001 BPD-00068 EF-001 BPD-00015 EF-001 BPD-00033 EF-001

EF-001 EF-001

76-11547-8,

values

and in

AEROVOX

PART

No.

5

2. 2

LIST

NOTES

FIXED

given

mmfd.

CENTRALAB

PART

DD-390

MFT-1000 TCZ-2R2

DD-331 829-3

D6-270 MFT-1000

TCZ-2R2

DD-102 DD-681

MFT-1000

DD-151 MFT-1000

DD-331 MFT-1000 TCZ-R68

829-3

MFT-1000

AND

76-10391-1

ELECTRIC,

ITEM

No.

V203

CAPACITORS

in the

rating column

for

Mica

REPLACEMENT

CORNELL-

DUBIUER

No.

PART

LT6V5 LT6V5 L10Q39 LT6V5 LT6V5

CTA6V22C

L10T33

LT6Q27

CTA6V22C BYA6D1 BYA10T68

L10T15 L10T33

RESISTORS

All

wattages

1/2

watt,

or

less,

unless otherwise listed.

No.

NOTES

COILS

NOTES

Channel

2-13,

Includes

wafer

assy. Channel

2-13, Includes wafer assy. Channel

2-13, Includes wafer assy.

(RF-IF)

ITEM

No.

L211

L212A

L213 L214

L215 L216 L217

COMPONENT COMBINATIONS

DESCRIPTION

470mmf, . 2-lmeg 470mmf, . 2-lmeg

CRYSTAL

REPLACEMENT

CBS

PART

No.

1N82A

DATA

DIODES

SYLVANIA

PART

No.

1N82A

DESCRIPTIONS

SYLVANIA)

USE

UHF

Osc.

are in

and

Ceramic Capacitors.

DATA

MALLORY

PART

No.

ZT-555 ZT-555

UC-5439

ZT-555 ZT-555

UC-5333 CT565A

UC-5427

DC521 UC-5368

UC-5315 UC-5333

CT565A

ITEM

RATING

No.

OHMS

R209

10 K

R210

82 K

R211

220SJ

R212

150K

R213

470K

R214

5600J!

R215

isoon

1

USE

Osc.

Colls

Mixer

Plate

E

RF

Choke

UHF

Ant.

Input

Assy.

Cathode

Choke

Fil.

Choke

Fil.

Choke

RF

Choke

PHILCO

PART

No.

30-6028-1 30-6028-1

UHF

Mixer

(Clip-in)

mfd.

No.

WATT

Col

2AF4A

for

Paper

SPRAGUE PART

No.

5GA-V5 5GA-V5 5GA-Q39 5GA-V5 5GA-V5 503C-D1 5TCCB-V22

5GA-T33

5GA-Q27 503C-D1

5TCCB-V22 5HK-D1 5GA-T68 503C-D1 5GA-T15 503C-D1 5GA-T33 503C-D1

503C-D1 503C-D1

PHILCO PART

No.

66-3108340

1

66-3824340 66-1228340 66-4158340 66-4478340 66-2568340 66-2158340

PHILCO

PART

No.

328-0113

32-4629-9 76-10072 32-4642-4

32-4642-3 32-4652-44 76-10170

REPLACEMENT

Centralab

HC-471 Sprague AC1-1 Centralab

RC-471 Sprague AC1-1

NOTES

TYPE

NOTES

NPO

10%

N1500

NOTES

Channel Includes assy.

Includes

R213

Includes panel

assy.

DATA

±.25mmf

NOTES

2-13,

wafer

C229,

crystal

PAGE

6