Sony St-s333esg User manual

S1-S333ESG

SERVICE

MANUAL

E

Model

‘pile

aE

i,

SETHI,

SPECIFICATIONS

Circuit

System

_

FM

stereo,

FM/AM

super-heterodyne

Weight

Approx.

6.4

kg

(14

|b

2

0z)

tuner

PLL

quartz-locked

digital

synthe-

sizer

system

Accessories

Supplied

Connecting

Cord

(1)

FM

ribbon

antenna

(1)

Power

requirements

120V,

220

-240V

AC

adjustable,

50/60Hz

AM

loop

antenna

(1)

Power

consumption

20

watts

Antenna

connector

(1)

Remote

contro!

cord

(4-pin)

(1)

Dimension

Approx.

470

x

96

x

372

mm

(w/h/d)

Short

screw

(M4

x

8)

(4)

(18

5/8

x

3

7/8

x

14

3/4

inches)

FM

STEREO

/

FM-AM

TUNER

SONY.

ST-S333ESG

|

Intermediate

frequency

Sensitivity

Usable

sensitivity

10.3

dBf,

0.9

uV/75

ohms

(IHF)

Signal-to

at

40

kHz

deviation

95

dB

(mono)

noise

ratio

SHO

Me

cevistion

86

dB

(stereo)

Harmonic

distortion

WIDE

0.008%

(mono)

0.02%

(stereo)

NARROW

0.04%

(mono)

0.08%

(stereo)

Separation

at

1

kHz

Selectivity

at

400

kHz

WIDE

80

dB

at

300 kHz

WIDE

45

dB

Output

at

40

kHz

deviation

AM

tuner

—

Tuning

range

AM:

531-1602

kHz

(9

kHz

step)

530-1710

kHz

(10

kHz

step)

Intermediate

frequency

Usable

sensitivity

MW

AM

loop

antenna

250

uwV/m

External

antenna

30

uV/m

LW

AM

loop

antenna

700

wV/m

External

antenna

200

uV/m

Signal-to-noise

ratio

Harmonic

distortion

Selectivity

at

9

kHz:

65

dB

(NARROW)

50

dB

(WIDE)

TABLE

OF

CONTENTS

Section

Title

Page

SPeCiFICATIONS

......

ee

eeeseeeeceeesesessneeeeenececceeueeteeeesssanenseeneenes

1

FEAtUIES

20...

ccccscccceccesssseecccceeseecersccaeenseeeesoceuessseesececaseesanareneaees

3

1.

GENERAL

1-1.

Location

and

Function

of

Controls

.......ceeeeeseeee

4

1-2.

Broadcast

ReECeption

............ccsseseeeeecceceesseeeceeesenenenee

5

1-2-1.

TUNING

IN

Manually

oo...

seseceseeeeeeererssessesseaees

5

1-2-2.

Tuning

in

Automatically

0.0...

ccceesssssssesseeeeeenees

5

1-2-3.

Storing

station

frequency

into

memory

..........+.

6

1-2-4.

Receiving

a

Stored

Station

...........cscceeeseesseeeeeeeees

6

1-2-5.

Scanning

Stored

Stations

Automatically

..........

7

1-2-6.

Scanning

Stored

Stations

Manually

...........

ee

7

2.

IC

FUNCTIONS

2-1.

10601

(uPD75108CW-A76)

Functions

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

8

3.

BLOCK

DIAGRAM

.............:::ccccsessessereeesenesesseetennees

11

4.

ELECTRICAL

ADJUSTMENTS

................c:cssseseeeeee

13

5.

DIAGRAMS

5-1.

Printed

Wiring

Boards

.........eseeeseeesseesenenenees

17

5-2.

ScheMatic

DiaGram

........ceeesccssssesseessesesceseeeeeeeeeees

21

5-3.

IC

Block

Diagram

........

cece

eeeeseeeeseeseeneeseenenssnceeeeeees

24

5-4.

Semiconductor

Lead

Layouts

.......

ce

ccccssseeeeeeeee

26

6.

EXPLODED

VIEWS

6-1.

CABINET

ASSEMBLY

uu...

ec

ceessseeeeesesscseneeseones

27

6-1.

CHASSIS

ASSEMBLY

.........::cccsesssssereeneeeseenseeeeees

29

7.

ELECTRICAL

PARTS

LIST

..................::scssssesereneeees

31

|

ST-S333ESG

Precise

Tuning

with

the

large

knob

Features

The

detected

revolution

of

the

tuning

knob

is

under

digital-

contro!

so

that

you

can

tune

in

the

correct

frequency

and

stored

station

easily.

This

system

employs

a

variable

muting

function

that

adjusts

itself

to

the

rotation

speed

of

the

TUNING

knob

and

changes

the

muting

time.

This

function

realizes

a

feeling

which

is

very

close

to

that

of

an

analog

type

tuner.

Direct

comparator

technology

2

An

employed

PLL

IC

allows

the

comparison

frequency

to

be

as

high

as

the

channel

spacing

frequency,

thus

eliminating

the

tendency

of

a

low

comparison

frequency

to

slip

into

the

audio

range

and

degrade

the

signal-to-noise

ratio.

Free

from

digital

noise

:

When

thetuning

completes,

the

clock

oscillator

of

the

micro-

computer

stops.

Since

the

received

signal

passes

through

only

analog

circuits,

you

can

enjoy

the

pure

sound

without

an

interference.

NEW

Z-We)

oh

tien)

4-1

am

cc\yelaled

cere

bz

The

WOIS

(Wave

Optimized

IF

System)

which

makes

the

IF

waveform

optimum

shape

in

stereo

and

monaural

mode

and

the

WODD

(Wave

Optimized

Direct

Detector)

which

forms

the

VCO

oscillation

waveform

of

the

PLL

detector

ensure

low

distortion

sound.

Program

function

oe

.

Using

the

program

function,

you

can

automatically

tune

in

up

to

four

stations

which

have been

memorized

in

any

sequence

you

want.

Stations

will

be

received

one

by

one

as

the

power

is

turned

on

and

off

by

an

optional

audio

timer.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

/A\

OR

DOTTED

LINE

WITH

MARK

A\

ON

THE

SCHEMATIC

DIAGRAMS

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

TO

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL

OR

IN

SUPPLEMENTS

PUBLISHED

BY

SONY.

ST-S333ESG

|

1-1.

LOCATION

AND

FUNCTION

OF

CONTROLS

ESSE)

MERIC

EIRICIGIE

SECTION

1

GENERAL

This

section

is

extracted

from

instruction

manual.

Display

window

POWER

switch

CAL

TONE

(calibrating

tone)

button

Press

this

button

to

obtain

a

400

Hz,

50%

modulated

signal

for

adjusting

the

recording

level

on

a

cassette

deck.

“CAL”

will

appear

when

a

400

Hz

calibrating

tone

signal

is

provided.

To

deactivate

the

calibrating

tone

circuit,

press

the

button

again.

TUNE

MODE

(tuning

mode)

button

MUTING

button

PRESET

buttons

TUNING/PRESET

button

TUNING

knob

SHIFT

button

MEMORY

button

Band

selector

FM

MODE

button

Auto

Stereo:

Normally,

select

this

mode

(by

making

the

HI-BLEND

and

MONO

indicators

disappear

from

the

display

window)

when

you

tune

in

a

strong

FM

broadcast.

HI-BLEND:

Select

this

position

when

the

high-

frequency

sound

is

noisy

in

the

FM

band.

The

high-

frequency

noise

will

be

reduced,

but

this

lowers

the

stereo

effect.

MONO:

Select

this

position

when

you

tune

in

a

very

weak

or

noisy

FM

station.

Although

the

sound

will

come

out

in

monaural

the

noise

will

be

greatly

re-

duced.

eles!

IF

(intermediate

frequency)

BAND

button

To

prevent

inter-station

interference,

press

this

button.

The

NARROW

indicator

apears

on

the

display

and

the

selectivity

is

improved.

DISPLAY

button

RF

MODE

button

MPX

FILTER

(multiplex

filter)

button

Press

this

button

when

you

record

an

FM

stereo

pro-

gram

using

the

Dolby

NR*

(Noise

Reduction)

system.

The

MPX

FILTER

indicator

appears.

This

filter

cuts

off

the

38

kHz

subcarrier

signals,

which

may

otherwise

interfere

with

proper

operation

of

the

Dolby

NR*

(Noise

Reduction).

If

your

deck

has

an

MPX

FILTER

button,

use

that

button

rather

than

the

button

of

this

tuner.

*

Dolby

noise

reduction

manufactured

under

License

from

Dolby

Laboratories

Licensing

Corporation.

“DOLBY”

and

the

double-D

symbol

[J]

are

trade-

marks

of

Dolby

Laboratories

Licensing

Corporation.

DISPLAY

MODE

button

PROGRAM

switch

and

CHECK

button

ANT

button

|

1-2.

BROADCAST

RECEPTION

1-2-1.

Tuning

in

Manually

1

Select

the

desired

band

with

the

bnad

selector.

2

if

the

AUTO

indicator

appears

on

the

display,

press

TUNE

MODE.

The

AUTO

indicator

disappears.

3

Check

if

the

TUNING

indicator

appears

on

the

display.

If

not,

press

TUNING/PRESET.

4

Find

the

desired

station

by

turning

the

TUNING

knob

toward

»

for

higher

frequencies

or

<

for

lower

fre-

quencies.

For

FM

stereo

reception

Normally,

press

MUTING.

MUTING

indicator

appears

on

the

display.

To

tune

in

a

very

weak

FM

station,

press

again

to

reset

it..

The

MUTING

indicator

goes

off.

To

receive

a

weak

FM

broadcast

Set

MUTING

off

(press

MUTING

so

that

the

MUTING

indicator

disappears

from

the

display

window),

and

if

it

is

still

noisy,

set

FM

MODE

to

the

MONO

mode.

To

tune

in

only

stations

with

strong

signals

Press

RF

MODE

to

make

the

DIRECT

indicator

appear.

When

the

desired

station

is

interfered

with

adjacent

sta-

tions

Press

the

IF

BAND

button

so

that

the

NARROW

indicator

appears

in

the

display

window.

In

this

mode,

the

selectiv-

ity

increases

so

that

interference-free

sound

is

obtained.

|

ST-S333ESG

1-2-2.

Tuning

in

Automatically

(FM

only

for

European

countries,

FM

and

AM

for

other

countries)

Select

the

desired

band

with

the

band

selector.

Press

TUNE

MODE

so

that

the

AUTO

indicator

appears

on

the

display.

3

Check

if

the

TUNING

indicator

appears

on

the

display.

If

not,

press

TUNING/PRESET.

4

Turnthe

TUNING

knobtoward

P

for

higher

or

<

for

lower

frequencies.

When

automatic

frequency

scanning

starts,

release

the

knob.

Scanning

stops

when

a

signal

is

received.

If

the

signal

is

not

the

desired

one,

turn

the

knob

again

to

restart

scanning.

To

receive

other

stations

When

the

received

station

is

not

the

one

you

want,

turn

TUNING

knob

again.

To

receive

a

strong

FM

broadcast

Normally,

set

MUTING

on

(press

MUTING

so

that

the

MUTING

indicator

appears

on

the

display)

to

reduce

noise.

Also,

set

FM

MODE

to

the

auto

stereo

mode.

The

unit

operates

in

the

stereo

mode

for

a

stereo

signal,

and

auto-

matically

switches

to

the

monaural

mode

for

a

monaural

signal.

Ifitis

still

noisy,

set

FM

MODE

to

the

HI-BLEND

mode.

ST-S333ESG

|

1-2-3.

Storing

station

frequency

into

memory

If

you

select

an

incorrect

number,

press

the

MEMORY

but-

ton

again

and

select

the

correct

number.

if

the

MEMORY

indicator

disappeared,

before

you

pressed

PRESET,

press

MEMORY

again.

If

the

power

remains

off,

the

memory

is

maintained

for

ap-

proximately

one

month.

If

a

new

station

is

stored

over

a

preset

station

number,

the

previously

stored

station

is

erased.

lf

you

set

the

ANTENNA,

RF

MODE,

IF

BAND,

MUTING,

they

can

be

stored

when

you

press

MEMORY

and

PRESET.

If

the

indicators

on

the

display

are

not

properly

displayed,

1

Press

POWER

to

turn

off

the

unit.

2

While

pressing

PRESET

“9”

and

PRESET

“0”,

press

POWER

to

turn

on

the

unit.

This

unit

is

reset

to

initial

state

and

all

of

the

stored

stations

and

settings

are

erased.

1-2-4.

Receiving

a

Stored

Station

A

total

of

30

FM/AM

stations

(Station

names

can

stored

only

twenty

among

of

thirty

stations)

in

any

band

can

be

memo-

Method

A:

When

you

know

the

preset

number

of

the

rized.

desired

station.

Storing

all

stations

automatically

To

preset

the

frequencies

and

other

modes

of

30

stations,

press

the

PRESET

button

3

while

pressing

POWER.

To

preset

the

frequencies,

station

names,

and

other

modes

of

20

stations,

press

the

PRESET

button

2

while

pressing

power.

Once

they

are

presetted,

they

will

be

memorized.

(Even

for

1

month

with

the

power

off)

Storing

one

station

at

a

time

1

Tune

in

the

desired

station.

2

Press

MEMORY.

“MEMORY”

appears

in

the

window.

3

Press

SHIFT

to

select

the

memory

page

A,

B,

or

C.

4

Select

a

preset

number

with

the

PRESET

button.

1

Press

SHIFT

to

select

the

memory

page

A,

B,

or

C.

Repeat

the

above

steps

for

each

station

to

be

stored

in

2

Select

the

desired

number

with

the

PRESET

button.

memory.

Method

B:

When

you

don’t

know

the

preset

number

of

the

desired

station.

1

Press

TUNING/PRESET

to

make

the

PRESET

indicator

appear.

2

Find

the

desired

station

by

turning

the

TUNING

knob

control

toward

P

for

higher

numbered

stations

or

<¢

for

lower

numbered

stations.

1-2-5.

Scanning

Stored

Stations

Automatically

Press

TUNE

MODE

to

make

“AUTO”

appear

and

turn

the

TUNING

knob.

If

scanning

does

not

start

Scanning

starts

only

when

you

turn

the

TUNING

knob

while

the

code

indicator

is

flashing.

If

the

flashing

has

stopped,

press

TUNE

MODE

again.

1-2-6.

Scanning

Stored

Stations

Manually

1.

Press

TUNING/PRESET

to

make

the

PRESET

indicator

appear.

2.

Press

TUNE

MODE.

AUTO

indicator

goes

off.

3.

Turn

TUNING/CHARACTER,

until

desired

station

is

re-

ceived.

|

ST-S333ESG

|

SECTION

2

iC

FUNCTIONS

2-1.

1C601

(uPD75108CW-A76)

FUNCTIONS

CLOCK

START

—*(1)

Not

used.

REMOCON

Rotary

encoder

R1

Rotary

encoder

R2

AUTO STOP

Not

used.

PGM

KEY

LOCK

FM

MUTE

TUNING

LATCH

Not

used.

DATA

CLOCK

POWER

ON/OFF

SST

4

SST

3

SST

2

SST

1

ANT

RF

MODE

Not

used.

{

S-NAR

WIDE/NARROW

FILTER

Not

used.

{

BLEND

HI-BLEND

MONO/AUTO

Not

used.

Not

used.

+5V

GND

Not

used

>

wo

oO

KEY

INPUT

KEY

DIGIT

~a—

4.19

MHz

ceramic

~t——

RESET

|

DIODE

SW

DIMMER

GRID

CONTROL

LATCH

3

LATCH

2

LATCH

1

PURE

LED

MW/LW

}

Not

used.

F/A

}

Not

used.

CAL-TONE

MUTE

¢1C601

SYSTEM

CONTROLLER

(uPD75108CW-A76)

FUNCTION

1

Ie

elon

a

or

&

W

NH

oon

wm

=

oO

N.C.

REMOCON

R1

R2

AUTO

STOP

)

N.C.

PGM

KEY

LOCK

F-MUT

TUN

LATCH

N.C.

DATA

CLK

POWER

SST4-SST1

ANT

RF

MODE

S-NAR

WIN

FILTER

BLD

HI-B

MONO/AUTO

LT

a

er

se

sae.

ae

ea)

ar

Description

Stop

mode

control

input.

(1)

When

there

is

no

key

input

continuously

for

2

seconds

and

the

signal

remains

“L”,

the

1/O

port

is

maintained

in

the

state

immediately

before

and

the

stop

mode

is

entered.

PURE

(pin

37)

goes

“H” and

D701

lights.

(2)

When

there

is

a

key

input,

f

releases

the

stop

mode.

PURE

(pin

37)

goes

“L”.

Not

used.

Remote

control

signal

input.

Rotary

encoder

rotation

detect

input

(%1)

-

Rotary

encoder

rotation

detect

input

(1)

Auto

stop

signal

input

from

1C251.

“L”:

when

signal

detect

Not

used.

PROGRAM

switch

(S661)

input.

“L”:

PROGRAM

switch

(S661)

input.

“L”:

KEY

LOCK

FM

MUTING

output.

“H”:

MUTE

FM

MUTING

SENS

select

output.

“L”:

STOP,

“H”:

TUNING

AM

muting

output.

“H”:

STOP,

“L”:

TUNING

Signal

meterdriver

(1C705)

latch

output.

Display

data

output

to

FL

driver

(1C501,

701

—

703,

705)

Data

transfer

clock

output

to

FL

driver

(IC501,

701

—

703,

705)

Power

down

detect

input

“H”:

normal,

“L”:

power

down

Not

used

(pull

up)

|

FM

antenna

select

output.

“L”:

antenna

“A”.

“H”:

antenna

“B”

Antenna

attenuator

ON/OFF

output.

“L”:

through,

“H”:

ATT

Not

used

(pull

up)

.

Wide/Narrow

select

output.

“L”:

WIDE,

“H”:

NARROW

Multiplex

filter

switch.

“H":

MPX

FILTER

ON

Not

used

(pull

up)

HIGH

BLEND

switch

(Q306)

control

output.

Auto

stereo

select

switch.

“H”:

AUTO

STEREO

Not

used.

Power

supply

terminal

(+5V)

Line

mute

output.

“H”:

MUTE

CAL

TONE

ON/OFF

output.

“L”:

CAL

TONE

Not

used

(open)

|

M/L

PURE

LATCH

1

LATCH

2

LATCH

3

<=

Not

used.

Diode

switch

output.

H

L

H

L

Clock

output

Clock

input

(4.19

MHz)

Key

matrix

output

Key

matrix

input

Not

used

(pull

down)

|

ST-S333ESG

Description

PURE

LED

(D701)

ON/OFF

output.

“H”:

ON

(stop

mode)

FL

driver

(IC701)

latch

output

FL

driver

(IC702)

latch

output

FL

driver

(IC703)

latch

output

FL

indicator

tube

grid

control

output

(center

grid

2G)

(#2)

FL

indicator

tube

grid

control

output

(both

sidesgrid

1G,

3G)

(#2)

System

RESET

input.

“L”:

RESET

Power

supply

terminal

(GND)

#1

Rotary

encoder

ratation

detect

M

IN.

1.0

ms

Clockwise

Counterclockwise

%#%2

When

the

|

DISPLAY

MODE

|

key

is

pressed,

the

FL

dis-

play

changes

cyclically

as

follows.

e

Fully

lit

>

Partially

lit

—

Not

lit

al

The

output

ports

change

as

follows.

|

Fulty

it

|

arciatty

|

Not

it

*

When

the

|

BAND

|

key

is

pressed,

the

output

ports

change

cyclically

as

shown

in

the

table

below.

(0501

CXT025

8

AD

IC501

CX7925

9

BO

|

DON’T

CARE

Age

¢

TEST

MODE

When

the

key

is

held

depressed

and

the

power

is

turned

on,

all

segments

in

the

FL

display

.

light

while

the

key

is

held,

so

simple

checking

can

be

done.

When

the

|

SHIFT

|

keyis

released,

normal opera-

tion

is

restored.

ST-S333ESG

SECTION

3

BLOCK

DIAGRAM

dtiei

ee

iF

BYPASS

SWITCHING

roy

—————————

SF]

:

(for

Adjustment)

D208

10284

=

g

iFT251

FRONT

END

n202

sND

@)

aye

Ssetsig

crn

oro:

119

pot

i¢204

!¢202

0203

a2

4

IFT

274

DBM

PLL

DET

THD

ga7y

RYI51

FM

RE

AMP

a

Qto2

ATAU

Q201

MONO

SWITCH

IFT201

1FT203

FM

IF

Ltot

D101

0102

:

r

.

FM

IF

>

\FT272

0275

‘

Bf

ae

‘

Pane

©

3

a"

88

Lt

veo

Q152

[

Si

RF

MODE

SELECT SWITCH

O}rp2rs

oO}

NULL

AV251

BUFFER

FM

MUTE

LEVEL

STEREO

4

6

7

el

SHITCH

ANTENA

SELECT

SWITCH

TP201

iF

THROUGH

2

3

bres

:

FM

IF

|

creo

FM

IF

FM

IF

: :

~{o

AMP

Owe

©

Owe

©

as

Es

a

Fees

~

Pit

CF202

—

Se

STEREO

Q206

IFT202

IFT204

STEREO

SWITCH

i

;

3

ANT

RF

MODE

(From

10601

23pin}

(From

IC601

24pin)

ates

BUFFER

Q103

>

AUDIO

13V

Tee

4

10501

9

aie

FM

OSC

Gait

chess

J

0511

D104

0105

auerER

1)

v

DD

5V

PLL

SYNTHESIZER

501-503

FM/AM

FM

+B

VOLTAGE

SWITCH

AM

+B

D622

De2t

oO

Oo

FM

MUTE

(From

C601

12pin)

(From

C601

1%pin)

(1)

FM

INPUT

Q521,522

PLL

LPF

OFromiC601

14,16,17pin

Q231-235

MONO

/

STEREO

10401

MONO/STEREO

——

LPF301

FESOt(MW)

de

AM

TUNER

NARROWMWIDE

NARROW

/

WIDE

CNJ301

7

AV4OT

SWITCH

AM

METER

LEVEL

(6)

aie

©

[Ren

Q308

MUTING

SW

SEPARATION

Q306

MONO KIGH

SWITCH

BLEND

SW

()

RV303

A402

AM

AUTO

STOP]

0404

:

—

+auren}

BUFFER

Q407

Q405

040g

PILOT

CANCEL

"

SEPARATION

O

MUTING

AMINARROW

MUTING

AM

SWITCH

IWIDE

SW

MUTING

¢1)

©

|een

9303

auto

STEREO

¢9

0304

¢1)

IF

IN(@)

Q401-403

STEREO

|

6

t

py

D304

ee

IFT401

403

aT

aL

save

2220

ses

eRe.

Q308

MUTING

SW

MONO/

STEREO

RY301!

0307

SWITCH

FM

/

AM

Tac

@

3

B

cr4oe

E

SWITCH

te

ol

+5V

_

i

Q310

5

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FM

MUTE

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AUTO

STOP

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FROM

REMOCON

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Q253-255

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PURE

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STOP

SWITCHING

ROTARY

Q671

Q701

PROGRAM

SWITCH

ENCODER

EMOTE

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[|

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|

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106k

]

SWITCH

DRIVER

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|

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|

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|

set

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tow

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open

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MODE

TUN

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=

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1C601

2

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SYSTEM

CONTROL

=

POWER

an

To

ae

a

onc

of

RESET

0901-904

KEY

DIGIT

KEY

INPUT

CLK’

START

zz

sl

AubiO

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116

2)

atti

PT904

POWER

TRANSFORMER

D91t-914

$952

(4)

DIGITAL

f°

+13V

VOLTAGE

SELECT

8951

Nes!

SYSTEM

+20V—™220-240V

POWER

+5V

AC

IN

Q921,D922

10705

re

SIGNAL

METER

oo

DRIVER

Oe)

behest’

€)

Q931,D032

EE

DISPLAY

CONTROL

-17V

$722

KEY.

SWITCHES

TUNING/PRESET

$701

$702 $703

$704

$705 $706

$707

$708

$709

S710

O

6731

Lit

te

{3s

f+

ts

Ts [7

Js

Te

Tio]

$728

DISPLAY

MODE

©)

$711

$712

S713 $714

$718

S717 $718

$719

$720

dene,

Gab.

La

ee

As

CHECK

CAL

TONE

ANT

if

BAND

'

FM

MODE

|

MPX

FILTER

FMJAMMEMORY

=

[Syipy

RF

MODE

-MUTING

TUNE

MODE

.

FL701

FLUORESCENT

INDICATOR

TUBE

x

ele

SECTION

4

ELECTRICAL

ADJUSTMENTS

Notes:

Perform

adjustment

in

the

order

given.

-

Parts

location

diagram

relevant

to

the

adjustment.

|

Servicing

Precaution

|

The

AM

RF

block

(FE401)

section

has

oe

been

carafully

adjusted

at

the

factory.

L104

When

it

is

worn

out,

be

sure

to

ex-

Pilot

C

rm

Tracking

L102

Control

Voltage

change

it

all

with

new

sectior,

because

rae

sd

Adjustment

CT102

Adjustment

it

is

difficult

to

repair.

justment

1101

RV303

L301

1€202

CT101

1C201

QO

‘a

a

x

Stop

leve

IFT202

;

Adjustment

lo

id

oS)

1FT201

}

FT/IF

Distortion

j

t

Rv402

oo

a

fee

ve

|

1C3017

RV201

:

©

RV203

FM

Muting

Level/IF

(0)

iO

Narrow

Gain

Adjustment

10401

a

]

o)

C)

IFT203

|

IFT/IF

Distortion

Co

-

IFT204

|

Adjustment

FM

Meter

Level

\)

RV241

Adjustment

Oo}

Stereo

Operation

6

ie?)

}

Adjustment

:

FM

Muting

Level/IF

a

|

i

Rneoe

}

Narrow

Gain

Adjustment

IC602

IFT251

[

Muting

Width

jem)

IC601

Adjustment

aL]

Ed

RV401

icog17

«CNULLIPLE

|

TP201

10272

1C251

AM

Meter

Level

Detect

Distortion

|

TP271

10271

Adjustment

CT271

IFT272

FM

SECTION

FM

RF

SSG

ee

1

kHz

distortion

highpass

meter

filter

f

.

oO

oT?

O

{

0

O

f

O

ae

bed

FM

ANTENNA

OUTPUT

(75

9)

¢

Standard

signals

for

adjustment.

FM

RF

Stereo

Signal

FM

RF

Monaural

Signal

Carrier

frequency

:

98

MHz

Carrier

frequency

:

98

MHz

Modulation

:

Audio

1

kHz,

16.25

kHz

deviation

(21.7%)

|

Modulation

:

Audio

1

kHz,

40

kHz

deviation

(53%)

Subchannel

16.25

kHz

deviation

(21.7%)

Pilot

19

kHz,

7.5

kHz

deviation

(13.3%)

Control

Voltage

Adjustment

Procedure:

1.

Turn

the

set

to

108

MHz.

2.

Adjust

L104

for

21.0

+0.2

V

reading

on

the

VTVM.

3.

Tune

the

set

to

87.5

MHz.

4.

Confirm

that

the

voltage

reading

on

the

VTVM

is

within

8.0

+1.0V.

VTVM

{de

range)

(6)

of

1C501

7

§

|

8

14

Tracking

Adjustment

Setting:

IF

BAND

:

NARROW

VTVM

FM

RF

SSG

FM

ANTENNA

(75

Q)

OUTPUT

Procedure:

1.

Tune

the

set

to

108

MHz.

2.

Adjust

CT101,

CT102

and

CT

103

for

maximum

read-

ing

on

the

VTVM.

3.

Tune

the

set

to

87.5

MHz.

4,

Adjust

101,102

andL103

for

maximum

reading

on

the

VTVM.

5.

Repeat

the

step

2

—

4

several

times.

Muting

Width

Adjustment

Setting:

IF

BAND

:

WIDE

MUTING

switch

:

ON

FM

RF

SSG

FM

ANTENNA

(75

Q)

VTVM

(de

range)

pins

(7)

end

(10)

of

(C251

Carrier

frequency:

98

MHz

Modulation:

FM

RF

Monaural

signal

Output

level:

10

mV

(80

dBu)

Procedure:

|

1.

Tune

the

set

to

98

MHz.

2.

Adjust

IFT251

for

OV

reading

on

the

VIVM.

NULL/PLL

Detect

Distortion

Adjustment

Setting:

IF

BAND:

WIDE

MUTING

switch:

ON

VTVM

{de

range)

a

TP271

|

Procedure:

1.

Tune

the

set

to

98

MHz.

2.

Short-circuit

TP201

to

the

ground

(The

set

turns

into

IF

through

state.)

3.

Set

the

SSG

output

to

80

dBy

(10

mV).

4,

Adjust

IFT272

for

0

V

reading

on

the

VTVM

(TP271).

(Null

adj.)

5.

Adjust

CT271

for

minimum

distortion

reading

onthe

distortion

meter.

(PLL

Detect

Distortion

adj.)

.

Repeat

the

step

4

and

5

several

times.

7.

Remove

the

short

circuit

of

TP201.

Oo

IFT/IF

Distortion

Adjustment

Setting:

IF

BAND

:

WIDE

MUTING

switch:

OFF

8

1

VTVM

.

(de

range)

(3)

of

10203

|

Procedure:

1.

Tune

the

set

to

98

MHz.

2.

Turn

RV201

and

RV202

to

fully

clockwise.

3.

Set

the

SSG

output

to

40

dBy

(100

pV)

at

monaural

modulation

mode.

4.

Adjust

IFT201

for

maximum

reading

on

the

VIVM.

(IF

Distortion

Pre

adj.

>

MONO)

5.

Set

the

SSG

output

to

40

dBu

(100

pV)

at

stereo

_

modulation

mode.

6.

Adjust

IFT202

for

maximum

reading

on

the

VIVM.

(IF

Distortion

Pre

adj.

*

STEREO)

7.

Adjust

IFT101

for

maximum

reading

on

the

VTVM

(IFT

adj.)

8.

Set

the

SSG

output

to

80

dBu

(10

mV)

at

monaural

modulation

mode.

9.

Turn

RV201

and

RV202

to

mechanical

center

posi-

tion.

10.

Adjust

IFT203

for

the

minimum

distortion.

(IF

Distortion

adj.

e

MONO)

11.

Set

the

SSG

output

to

80

dBu

(10

mV)

at

stereo

modulation

mode.

(Lch

only)

12.

Adjust

IFT204

for

the

minimum

distortion.

(IF

Distortion

adj.

*

STEREO)

Stereo

Operation

Adjustment

Setting:

IF

BAND

:

WIDE

MUTING

switch:

OFF

FM

RF

SSG

FM

ANTENNA

(75

2)

Carrier

frequency:

98

MHz

Modulation:

FM

RF

Stereo

signal

Output

level:

70

uV

(20

dB)

Procedure:

1.

Tune

the

set

to

98

MHz.

2.

Adjust

RV251

so

that

the

STEREO

indicator

goes

on.

FM

Muting

Level/IF

Narrow

Gain

Adjustment

Setting:

IF

BAND

:

WIDE

MUTING

switch:

ON

FM

RF

SSG

oscilloscope

FM

ANTENNA

(75

Q)

OUTPUT

Carrier

frequency:

98

MHz

Modulation:

FM

RF

Monaural

signal

Output

level:

12.6

uV

(22

AB)

Procedure:

1.

Tune

the

set

to

98

MHz

and

adjust

output

level

of

signal

generator

at

25

dBu

(17.8

pV).

2.

Turn

RV252

at

the

position

where

the

waveform

suddenly

appears

on

the

oscilloscope

(FM

Muting

level

adj.)

3.

IF

BAND

:

NARROW

4.

Turn

RV203

at

the

position

where

the

waveform

suddenly

appears

on

the

oscilloscope

(IF

Narrow

Gain

adj.)

FIV

Meter

Level

Adjustment

Setting:

.

IF

BAND

:

WIDE

FM

RF

SSG

FM

ANTENNA

(75

2)

Carrier

frequency:

98

MHz

Modulation:

FM

RF

Monaural

signal

Output

level:

3

mV

(70

dBu)

Procedure:

1.

Tune

the

set

to

98

MHz.

2.

Adjust

RV241

so

that

1

—

10

indication

bars

light

up

on

the

signal

meter.

Pilot

Cancell

Adjustment

Setting:

IF

BAND

:

WIDE

FM

RF

stereo

signal

generator

VTVM

ye

set

K

i

FM

ANTENNA

OUTPUT

(75

2)

Carrier

frequency:

98

MHz

Modulation:

pilot

only

Output

level:

70

mV

(80

dB)

Procedure:

1.

Turn

the

set

to

98

MHz.

2.

Adjust

RV303

and

L301

alternately

for

minimum

reading

onthe

VTVM

and

also

tune

the

both

channel

of

L-CH

and

R-CH

balanced

at

this

time.

3.

Repeat

the

step

2

several

times.

Stereo

Separation

Adjustment

Setting:

IF

BAND

:

WIDE

FM

RFF

stereo

signal

generator

FM

ANTENNA

OUTPUT

(75

Q)

98

MHz

FM

RFF

stereo

signal

10

mV

(80

aBu)

Carrier

frequency:

Modulation:

Output

level:

Procedure:

VTVM

;

FM

stereo

VTVM

signal

generator

Pannection

output

channel

reading

(dB)

a

Adjust

ai

for

minimum

reading.

Adjust

RV302

for

minimum

reading.

L-CH

Stereo

separation:

@)

-

R-CH

Stereo

separation:

©

-

©)

The

separations

of

both

channels

should

be

equal.

—~115-

ST-S333ESG

SECTION

5

DIAGRAMS

Setting:

°

Semiconductor

Location

Ret

No

Locaon

[Ret

No

Losston

[Ren

[Lacaon

loop

antenna

AM

RF

SSG

30%

amplitude

modulation

by

400

Hz

signal

AM

loop

antenna

TAT

AM

NNNMND

-a

oooo0o

AM

antenna

OUTPUT

terminal

AM

Meter

Level

Adjustment

Setting:

Carrier

frequency:

216

kHz

Modulation:

400

Hz,

30%

modulation

Procedure:

1.

Set

AM

RF

signal

generator

so

that

the

AM

antenna

input

level

becomes

74

dBu/m

(5

mV/m.)

2.

Adjust

RV401

so

that

1

-

10

indication

bars

light

up

on

the

signal

meter.

DITO

=

-

—-

—

A>

Oman

aq

AM

Auto

Stop

Level

Adjustment

Setting:

Carrier

frequency:

999

kHz

Modulation:

400

Hz,

30%

modulation

G

~H

H

G

C-

B

B-

B

Sy

ly

A

Ss

OF

©

C1!

©

Procedure:

1.

Set

AM

RF

signal

generator

so

that

the

AM

antenna

input

level

becomes

58

dBu/m

(0.8

mV/m.)

2.

Adjust

RV402

for

2.5V

reading

on

the

VTVM.

MmOODM

VTVM

(de

range)

TP601

%

Repeat

the

procedure

in

AM

Meter

Level

and

AM

Auto

Stop

Level

adj.

alternately

several

times.

eG

=

ST-S333ESG

5-1.

PRINTED

WIRING

BOARDS

°

See

page

26

for

Semiconductor

Lead

Leyout

a

aa

a

See

ae

Saar

ee re

ed

ieee

eee

ee

if

‘a

TO

CNP703

TO

CNP702

TO

CNP701

f

‘

Cc

A

~

c

A

a

1-633~-128

&

O o

{CONNECT(A)

BOARD]

==

COMPONENT

SIDE==

{CONNECT(B)

BOARD]

——COMPONENT

SIDE—

a’

§

4

ka

o

“hs

:

~

633-129

[DISPLAY

BOARD]

a

ae

$716

FM

MODE

oxacxe

1~633~127

o8

NA

I

Na

a

OO

ey

ae

-18-

{TUNER

BOARD]

17

|

18

|

2

TT

80

E88

M104

ANTENNA

LEM

|

75Q

COAXIAL

if

Modi

CNJ304

OUTPUT

CONTROL

S

CNP901

é&

CONNECT

BOARD

1-641-159

OD}

OQ]

©}

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&

cu)

te]

HeB\a]

3S)8

gg

3/318

;

L

Gas

SELECT

BOARD

PT904

$952

1-641-161

soli

120V

«—»

220-240V

al8/z

eee

[

ENCODER

KAC

SW

BOARD]

TUNING

a

i

a

TO

CNJ701

TO

CNJ702

TO

CNJ703

4

$864

1-

633-131

PROGRAM

OFF

@~

SET

—»

LOCK

-19-

BOS

1

2

3

4,

)

6

i

8

9

10

11

12

13

14

15

16

17

18

19

20

21

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oe

:

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IF

BAND

WIDE

NARROW

Lw

AM“)

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SEC

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MUTING

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wire

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R704

10k

C702

1/50

-17.8

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uv

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wim

no

4]

3

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z/

3

(G38

look

z/8

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2/2215

16)

=

lB

jols

[M2

|=

els

|g)

8|g=|3

Reis

[Bis

[zis

m

< x

ual

>

7a

= =

Oo

oO

m™m

wn

el

3

°

Ag

@

5-3.

IC

BLOCK

DIAGRAM

1201,

202,

271

uPC1163HA

1¢401

LA1245

1C705

LB1494

DIFERENTIAL

AMP

CURRENT

AMP

OUT

OUT10

OUT9

OUTS

OUT7

WTS

OUTS

OUT2

OUT1

10251

LA1235

(OX

3)

i

DETUNE

DET

iF

OFF

_

ml

SHORTING

hs

QUADRATURE

ae

AF/

NULL

a

OET

METER

6)

TIMING

COUNTER

Oo

IC301

CXA1064S

DEE

@

@-B—-@

@-~0-O-O+~)-~®

REG

|

WAV

|

>

oa

EX

ZN

a

1C701,

702,

703

LC7570

MODE

SELECT

las

STEREO

SWITCH

|

ei

FF

Si

ae

ee

osc

a

PHASE

KS

PILOT

7

456KH2

CIRCUIT

DET

OET

¢

6-8)

OD

eh

a

a9

x

5-4.

SEMICONDUCTOR

LEAD

LAYOUTS

LA5667

=

——]

<a]

—

——

el

NJ

uPC1163HA

a

1234567

DTA144ES

DTC114ES

DTC114TS

DTC144ES

2SA1175-HFE

2SC2603-EF

2SC2669-0Y

2SC2785-HFE

2SC3623A-LK

2SC3899

letter

side

2SA1409-LK

2SC1815-GR

2SB734-34

2SD774-34

2SC2275-P

LORS

2SK125-3

GP-1A06

2SK246-GR2

2SK30A-GR3

1,

anode

3.

GND

5.

Voi

2.

cathode

4.

Vo2

6.

Vec

SGp

KV1320

2SK152-3

anode

2

cathode

1

anode

1

Ds

G

HZS30-2L

HZS-6A1L

2SK161-GR

HZS-6A3L

2SK241-Y

UZL-7M1

188120

1T22A

11ES2

cathode

o”

|

:

G

anode

3SK122K

4

SEL4825A

1

2

3

1.

GATE

2

2.

GATE

1

3.

SOURCE

4,

DRAIN

cathode

anode

SVC333

i

anode

cathode

|

ST-S333ESG

SECTION

6

EXPLODED

VIEWS

NOTE:

6-1

CABINET

ASSEMBLY

@

_XX,

_X

mean

standardized

parts

so

they

may

have

some

differences

from

the

original

one.

Ref.

No.

Part

No.

Description

Remark

e@

Color

Indication

of

Appearance

Parts

00

ne

mm

me

nn

Example:

{

A-4325-063~-A

PANEL

ASSY,

FRONT

KNOB,

BALANCE

(WHITE).

..

(RED)

4-908-848-01

EMBLEM,

SONY

-

ni

3

X-4886-042-1

BUTTON

(A)

ASSY

Parts

color

Cabinet's

color

§

1-452-419-21

MAGNET

@

Items

marked

”*”

are

not

stocked

since

6

4-$23-475-11

PLATE,

ORNAMENTAL

they

are

seldom

required

for

routine

service.

Some

delay

should

be

antici-

q

X-4886-044-1

ESCUTCHEON

ASSY,

PANEL

pated

when

ordering

these

items.

3

\-4886-047-1

LID

ASSY

@

The

mechanical

parts

with

no

reference

g

4-923-482-01

KNOB

number

in

the

exploded

views

are

not

10

4-908-097-21

KNOB

supplied.

"

4-908-046-01

KNOB,

SQUARE

@

Hardware

(#mark)

list

is

given

in

the

last

of

this

parts

list.

12

4-864-307-00

RING

13

X-4886-045-1

PANEL

(LEFT)

ASSY,

SIDE

The

components

identified

by

mark

14

4-923-474-01

RING,

ORNAMENTAL

A\

or

dotted

line

with

mark

A\

are

15

4-935-800-11

CASE

ane

pop

satay,

‘

16

X-4886-046-1

PANEL

(RIGHT)

ASSY,

SIDE

iia

Panesar

erp

{7

*

4-908-036-11

PLATE,

BOTTOM

18

X-3304-944-1

FOOT

ASSY

19

X-4886-041-1

BUTTON

(3

GANG)

ASSY

20

4~884~612-21

INDICATOR,

EJECT

22

4-923-477-01

PLATE,

LIGHT

INTERCEPTION

23

4-933-446-01

SCREW

(SIDE

PANEL)

24

3-704-366-01

SCREW

(CASE) (M3X8)

25

3-701-506-01

SET

SCREW,

DOUBLE

POINT

3X4

26

3-533-938-00

CLOTH

27

4-935-807-01

CLOTH,

BLIND

28

4-923-492-11

WINDOW,

DISPLAY

PT901

AX

1-450-410-11

TRANSFORMER,

POWER

The

components

identified

by

mark

A\

or

dotted

line

with

mark

A\

are

critical

for

safety.

Replace

only

with

part

number

specified.

-~27

—-

—28-

ST-S333ESG

|

6-2.

CHASSIS

ASSEMBLY

not

supplied

57

98

99

60

61

62

63

64

65

66

67

68

69

10

:

11

not

supplied

=

Se

|

Wt

12

ZE

Se

.

:

13

|

D

14

CN67

1

FL701

3661

$951

$952

not

supplied

{included

+

A}

Part

No.

3-304-605-11

4-923-499-01

3-703-353-01

3-346-266-21

4-911-325-01

2-287-441-01

we

9

96

8

HH

e

4-921-402-01

4-923~873-01

2-352-626-01

3-7104-242-01

4-908-019-01

4-923-498-23

«e

e

X-4886-023-1

4-908-042-11

4~923-479-01

A~4345-298-A

1-633-127-11

1-633-128-11

1-633-129-11

1-633-130-11

1~633-131-14

1-633-132-11

1-641-159-11

1~560-242-51

He

8%

9

98

EE

EEE

*

1-560-242-61

¥

1-560-242-71

#

1-560-242-91

Z\

1-559-297-314

A\

1-569~-007~11

#

1-641-161-11

*

1-599-135-41

1~519-558-11

1-571-333-11

A\

1-572-267-21

A\

1-572-944~11

Remark

Description

HOLDER

(NO.

1),

LED

HOLDER

(FL)

SUPPORT,

PC

BOARD

PLATE,

GROUND

PLATE

(A),

SHIELD

PLATE,

SHIELD

HEAT

SINK

BRACKET,

CORD

STOPPER

BUSHING,

CORD

SCREW,

TERMINAL,

+

BVTP

CLAW

HOLDER

(A),

ANTENNA

PANEL,

BACK

PLATE

ASSY,

SLIT

CHASSIS,

MAIN

SPACER

TUNER

BOARD,

COMPLETE

DISPLAY

BOARD

CONNECT

(A)

BOARD

CONNECT

(B)

BOARD

ENCODER

BOARD

PGM

SW

BOARD

AC

SW

BOARD

AC

CONNECTOR

BOARD

BUS

BAR

7P

BUS

BAR

2P

BUS

BAR

6P

BUS

BAR

10P

CODE,

POWER

ADAPTER,

CONVERSION

2P

VOLTAGE

SELECT

BOARD

CORD

(WITH

CONNECTOR)

INDICATOR

TUBE,

FLOURESCENT

SWITCH,

ROTARY

SWITCH,

PUSH

(AC

POWER)

(1

KEY)

SWITCH,

POWER

VOLTAGE

SELECTION

The

components

identified

by

mark

A\

or

dotted

line

with

mark

A\

are

critical

for

safety.

Replace

only

with

part

number

specified.

—

29

-

-30-

Sony ST-S333ESG User manual

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