Sony St-s320 User manual

AEP

Model

UK

Model

Tuner

Circuit

system

FM

tuner

Frequency

range

87.5

—-

108

MHz.

Antenna

terminals

75

ohms

unbalanced

Intermediate

frequency

10.7

MHz

Sensitivity

(at

46

dB

quieting)

FM

stereo,

FM/AM

superheterodyne

tuner

Quartz-locked

PLL

digital

synthesizer

system

18.0

dBf,

2.2

wV

(mono)

40.0

dBf,

24.5

uw

(stereo)

Signal-to-noise

ratio

(at

40

kHz

deviation)

74

dB

(mono)

70

dB

(stereo)

Harmonic

distortion

.

mono

wide

stereo

mono

narrow

stereo

iM

distortion

.

mono

wide

stereo

mono

narrow

stereo

Separation

50

dB

(at

1

kHz)

0.04%

0.05%

0.06%

0.08%

0.04%

0.05%

0.06%

0.08%

Frequency

response

40

Hz-

12.5

kHz

+0.5

dB

Selectivity

(at

400

kHz)

80

dB

(wide)

90

dB

(narrow)

(at

300

kHz)

45

dB

(wide)

70

dB

(narrow)

SPECIFICATIONS

Capture

ratio

IF

response

ratio

1.0dB

AM

suppression

ratio

65

dB

Image

response

ratio

70

dB

70

dB

Spurious

response

ratio

Muting

threshold

80

dB

30

dBf

Automatic

tuning

threshold

Output

AM

tuner

Frequency

range

Antenna

30

dBf

410

mV,

4.7

kohms

(at

40

kHz

deviation)

Except

Italian

model:

MW:

531

-

1,602

kHz

LW:

153

-

279

kHz

Italian

model:

MW:

522

-

1,611

KHz

LW:

144

-

288

kHz

AM

loop

antenna

External

antenna

terminal

Intermediate

frequency

450

kHz

Usable

sensitivity

(when

AM

loop

antenna

is

used)

Signal-to-noise

ratio

Harmonic

distortion

Selectivity

300

«V/m

(999 kHz)

1

mV/m

(216

kHz)

54

dB

(50

mV/m)

(999

kHz)

50

dB

(50

mV/m)

(216 kHz)

0.3%

(50

mV/m,

400

Hz)

32

dB

—

Continued

on

page

2

—

FM

STEREO

/FM-AM

TUNER

ON

Y.

ST-S320

|

General

Power

requirements

U.K.

model:

240

V

AC,

50/60

Hz

European

model:

220

V

AC,

(or

240

V

AC

adjustable

by

authorized

Sony

personnel),

50/60

Hz

Power

ocnsumption

10W

Dimensions

Approx.

430

<

85

X

295

mm

(w/h/d)

(17

X

33/8

X

11

5/8

inches)

Weight

Approx.

2.8

kg

(6

lb

3

02)

Accessories

supplied

Remote

control

cord

(1)

Connecting

cord

(1)

FM

wire

antenna

(1)

(Except

West

Germany

model)

AM

loop

antenna

(1)

Design

and

specifications

subject

to

change

without

notice.

MODEL

IDENTIFICATION

—

Specification

Label—

SONY:

—

movet

no.

st-8320

FM

STEREO/FM-AM

TUNER

Vdd

SERIAL

NO.

MADE

IN

JAPAN

AEP,

West

Germany,

Italian

model

:

AC

220V

50/60Hz

UK

model:

AC

240V

50/60Hz

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

PUB-

LISHED

BY

SONY.

SECTION

1

GENERAL

et

Nati

at

aan

se

em

rata

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SECTION

2

ELECTRICAL

ADJUSTMENTS

FM

SECTION

FM

STEREO

SEPARATION

ADJUSTMENT

FM

DISCRIMINATOR

ALIGNMENT

Setting

:

(NULL

and

MONO

Distortion)

FM

RFstereo

signal

generator

distortion

meter

Setting

:

distortion

FM

RF

signal

meter

generator

FM

ANTENNA

(752)

OUTPUT

terminals

Carrier

frequency

:

98MHz

Output

level

:

ImV

(60dB)

FM

ANTENNA

(752)

OUTPUT

Modulation

:

terminals

Senne

He

aetis

«

1O25KHe

deviation

(40.6259)

.

:

we

9

Carrier

frequency

:

98MHz

Pilot

signal

19kHz

:

heey

oe

Sera

Modulation

:

1kHz

Mode

:

stereo

KHZ

Gevialon

(10.1970

Deviation

:

40kHz

Output

level

:

lmV

(60dB)

VOM

Procedure

:

Tune

the

set

to

98

MHz

TP301

NULL

terminal

_FM

stereo

VTVM VTVM

signal

generator

output

channel

connection

reading

(dB)

Procedure

:

1,

Tune

the

set

to

98

MHz,

®

Adjust

RV401

for

2,

Adjust

the

T301

for

0

V

reading

on

VOM,

..NULL

minimum

reading.

38.

Adjust

T302

for

a

minimum

reading

on

the

distortion

meter,

..MONO

Distortion,

@

4,

Repeat

the

primary—side

and

secondary—side

alignments

: ;

Adjust

RV401

for

minimum

reading.

several

times,

L-CH

Stereo

separation:

@—-@®

FM

METER

ADJUSTMENT

R-CH

Stereo

separation:

©

-@

Setting

:

The

separations

of

both

channels

should

be

equal,

FM

RF

stereo

signal

generator

FM

ANTENNA

(75Q)

terminals

Carrier

frequency:

98MHz

(45dB)

Modulation

:

kHz

Deviation

:

40kHz

Output

level

:

10mV

(80dB)

Procedure

:

1,

Tune

the

set

to

98

MHz

by

pressing

the

TUNING

buttons,

2,

Adjust

RV102

so

that

the

10

point

of

the

signal

meter

goes

on,

TUNED

/FM

IF

GAIN

ADJUSTMENT

Setting

:

distortion

meter

FM

RF

signal

generator

FM

ANTENNA

(75

Q)

OUTPUT

terminals

Carrier

frequency:

98MHz

Modulation

:

1kHz

Deviation

;

40kHz

Output

level

:

17.8

wu

V

(25dB)

Procedure

:

l.

Push

the

IF

BAND

switch

and

put

out

the

light

the

NARROW

indicator

in

the

fluorescent

display.

2.

Turn

the

semi-fixed

resistor

RV3801

and

stop

a

turn

the

RV301

when

“TUNED”

indicator

is

bright,

38.

Push

the

IF

BAND

switch

and

put

on

the

light

the

“NARROW”

indicator

in

the

fluorescent

display.

4,

Turn

the

semi-fixed

resistor

RV101

and

stop

a

turn

the

RV101

when

“TUNED”

indicator

is

bright,

TUNER

BOARD

(Component

Side)

RV401

(FM

STEREO

SEPARATION)

e

T302

(MONO

DISTORTION)

a

RV302

COM

METER)

7301

(NULL)

TP301

Baa

or

f

fo)

Rv301

~~

9

4S

(TUNED)

RV101

|

ST-S320

[AM

SECTION]

Setting

:

BAND

selector

switch:

MW

or

LW

loop

antenna

AM

rf

signal

LAYOUT-FREE

generator

antenna

oe

=

set

Modulation

:

400Hz,

30%

modulation

AM

METER

ADJUSTMENT

Procedure

:

1,

Set

loop

antenna

so

that

LAYOUT-FREE

antenna

input

level

becomes

94dBu

/m,

2,

Tune

the

set

to

LW:

216kHz,

3.

Adjust

the

RV302

so

that

the

10

point

segment

of

the

signal

meter

goes

on,

4,

Turn

the

set

to

MW:999kHz

and

check

that

the

10

point

segment

of

signal

meter

goes

on,

RV102

(FM

METER)

FE201

FE202

@|

|

(FM

IF

GAIN)

ST-S320

3-1.

PRINTED

WIRING

BOARDS

Refer

to

page

15

for

Semiconductor

Lead

Layouts.

Wet

tenne

Oe

al

Oe

ul

A

One

he

On|

ea

Ol

ke

AO

a

It

i

eee

ie

Ae

a

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SECTION

3

°

SEMICONDUCTOR

LOCATION

|

.

No.

i

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No.

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}-—

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Pan

tio

[Ro

[Lo

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—

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|

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[TUNER

BoARD]

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=

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———

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cieae

sue

PC5Ol

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or:

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why,

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IT

MODEL

|

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TG

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:

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Ny

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8

|

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[om]

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Hi

C864

(CHASSIS

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76

°

dg

et

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eer

te

Ste

‘asad

WG:

West

Germany

LT:

[talian

i]

|

H

?

A

2

{CONTROL

BOARD]

AUTO

TUNING

MEMORY

SCAN

[STEREO

MUTE]

BAND

=

:

asa

sacs

(Sw

BOARD)

Note:

y

(CHASSIS)

y

(1)

°

O-—:

parts

extracted

from

the

component

side.

¢

HJ}

:

parts

mounted

on

the

conductor

side.

Ld

TUNING

/

PRESET

ree

e+

he

indicates

side

identified

with

part

number.

SEEEEES

2

Pattern

on

the

side

which

is

seen.

«

WG:

West

Germany

model

IT

:

Italian

model

1

2 3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

3-2.

SCHEMATIC

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ae

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ei

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ea

Bao

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sacios

r

FL701

106

96 86

70

|

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BOARD)

{CONTROL

BOARD)

C501

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PT501

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POWER

TRANSFORMER

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|

MAIN

SUB

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SUPPLY

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MODEL

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,

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: ;

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;

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|

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FM

IF

AMP

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IF

AMP

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OFF

Power)

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FM

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201,202

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R203

100k

20

MW/LW

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SWITCHING

I

Resta

—

1

-

All

capacitors

are

in

uF

unless

otherwise

noted.

pF:

uu

F

*

Voltage

and

waveforms

are

dc

with

respect

to

ground

SOWV

or

less

are

not

indicated

except

for

electrolytics

under

no-signal

(detuned)

conditions.

Q402,403

Q404

5

:

MUTING

CONTROL

SWITCH

and

tantalums.

no

mark

:

FM

ee

——

+

All

resistors

are

in

2

and

%4W

or

less

unless

otherwise

(

):

MW

cNB02

=

Q601~604

specified.

«

y:LW

PLL

LPF

is

.

i

.

[iN]

[RetNO

|

AEP

|

UK

|

we

|

A

:

internal

component.

*

Voltages

are

taken

with

a

VOM

(Input

impedance

10M

Q).

Ee

[e407

|

390

|

a90p_|

660P_|

-

{ER}:

nontlammable

resistor.

iati

)

om

|

cas

1

a90P

|

a90P

|

660P

|

660P

|

i

variations

may

be

noted

due

to

normal

produc

R613

ee

Ree

ee

oe

ee

|

ion

tolerances.

.

ARE

CONTROLS

Note:

The

components

identified

by

mark

A

or

dotted

»

Wavelonne

are

taken

withes

Gstillaséopa

a

CN8O!

line

with

mark

are

critical

for

safety.

ain

°

Replace

only

with

part

number

specified.

Voltage

variations

may

be

noted

due

to

normal

produc-

US1060M-TPB

OUT

tion

tolerances.

c606

4

‘

X604

3

B+

|

:B+

Line

*

Signal

path,

5

10

C806

;

:

set

7

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ERY:

B-

Line

ep

SEN

+

WG:

West

Germany

model

Cé0s

:

0603

R622

C602

R601

R04

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2SC3112AB-TPE2

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(FE101)

SCHEMATIC

DIAGRAM

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|

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>

|

GND

¢

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>

=

:

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3-4.

1¢

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DIAGRAMS

16101

LA1235

aa

GRevis

c.

or

NULL

METER

FM

IF

AMP

QUADRATURE

ed

AF/

NULL

t

LIMITER

a

vce

bs.

Q—-@)-O-H)

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DETUNE

C401

LA1266

I¢301

LA3401

IG601

LC7218

PHASE

w]e

DETECTOR

SWALLOW

{2

BIT

CHARGE

COUNTER

PROGRAMMABLE.

PUMP

1/16,

1/17

BIT

Z

DIVIDER

SHIFT

REGISTER

LATCH

UNIVERSAL

COUNTER

3-5.

SEMICONDUCTOR

LEAD

LAYOUTS

LAS5S667

EQA02-15A

EQA02-30B

18S120

a

DTA144ES

Drei

ades

2SC2603-EF

TOESN

2SC26690Y

2SC3623A-LK

cathode

+

—

anode

DTC114TS

28C3112-B

I

2SK246GR3

S

6D

NOTE:

>

The

mechanical

parts

with

no

reference

number

in

the

exploded

views

are

not

supplied.

The

construction

parts

of

an

assembled

part

are

indicated

with

a

collation

num-

ber

in

the

remark

column.

Items

marked

‘*"’

are

not

stocked

since

they

are

seldom

required

for

routine

service.

Some

delay

should

be

antici-

pated

when

ordering

these

items.

SECTION

4

EXPLODED

VIEWS

®

Due

to

standardization,

parts

with

part

number

suffix

-XX

and

-X

may

be

dif-

ferent

from

the

parts

specified

in

the

components

used

on

the

set.

»

WG:

West

Germany

model

IT:

{talian

model

The

components

identified

by

mark

or

dotted

fine

with

mark

A

are

critical

for

safety.

eplace

only

with

part

number

specified,

oe

wee

’

LSrie

UK

MODEL

a

~~

s

v

N

7”

PC5OI

<

903

supplied

with

variable

resistor

not

supplied

Part

No.

Description

Remarks

|

No.

Part

No.

4-923-463-01

KNOB

V7

-*3-346-265-11

7-682-548-09

SCREW

+BVTT

3X8

(S)

18

7-682-548-04

19

*4-929-296-51

4-923-460-31

(AEP,UK)...PANEL,

FRONT

20

X-3304-938-2

4-923-460-41

(WG,IT)....PANEL,

FRONT

21

4-923-836-11

X-4886-038-2

(AEP,UK)...PANEL

(BASE)

ASSY

22

7-685-646-79

X-4886-039-1

(WG,IT)....PANEL

(BASE)

ASSY

23

7-682-547-09

24

4-908-848-01

4-917-460-01

KNOB,

POWER

7-685~646-79

SCREW

+BVTP

3X8

TYPE2

N-S

901

*A~4334-765-A

*A-4334-767-A

3-704-366-01

SCREW

(CASE) (M3X8)

*A~4334~768-A

4-923-457-01

CASE

902

=*A-4334-763-A

*4~917-044-01

BRACKET

(PT)

*A-4334-766-A

7-682-549-04

(AEP,UK,WG)...SCREW

+BVTT

3X10

(S)

*A-4334-771-A

*3-703-244-00

BUSHING

(2104),

CORD

7-621-849-00

SCREW,

TAPPING

903.

*1-635-788-11

7-685-646-79

SCREW

+BVTP

3X8

TYPE2

N-S

FL701

1-519-602-11

3-704-242-01

SCREW,

TERMINAL,

+

BYTP

CLAW

PT501A.1-449-400-11

*4-935-809-01

*4~-935-809-11

*4-935-809-21

*4-935-809-31

(WG)....PANEL,

BACK

(IT)....PANEL,

BACK

(AEP)...PANEL,

BACK

(UK)....PANEL,

BACK

PC501A.1-575-651-11

PC501A.1-575-652~-11

$901

A.1-554-920-21

“

a“

Description

Remarks

HOLDER,

PC

BOARD

SCREW

+BVTT

3X8

(S)

CHASSIS

FOOT ASSY

CUSHION

SCREW

+BVTP

3X8

TYPE2

SCREW

+BVTT

3X6

(S)

EMBLEM,

SONY

(AEP)....-MOUNTED

PCB,

TUNER

(WG,IT)...MOUNTED

PCB,

TUNER

(UK)......

MOUNTED

PCB,

TUNER

(AEP,UK)...MOUNTED

PCB,

CONTROL

(WG).......

MOUNTED

PCB,

CONTROL

(IT).......

MOUNTED

PCB,

CONTROL

PC

BOARD,

SWITCH

INDICATOR

TUBE,

FLUORESCENT

TRANSFORMER,

POWER

(AEP

,WG,IT)...CORD,

POWER

(UK)...

cee eee

CORD,

POWER

SWITCH,

PUSH

(AC

POWER)(1

KEY)

(POWER)

Sony ST-S320 User manual

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