Sony IGF-M50RDS User manual

_IGF-MOORDS

SERVICE

MANUAL

AEP

Model

UK

Model

SBEND

seen

sea

SPECIFICATIONS

Time

display:

Note

UK:

12-hour

system

This

appliance

conforms

with

EEC

Directive

87/

Other

countries:

24-hour

system

308/EEC

regarding

interference

suppression.

Frequency

range:

These

instructions

cover

two

models:FM/MW

/

LW

or

FW/MW/SW

——

The

band

for

each

model

and

the

area

where

the

Band

_Frequency

range

Channel

step

model

is

available

are

shown

balow.

FM

87.5

-

108

MHz

0.05*MHz(fixed)

_—

MW

531

-1,602

kHz

9kHz(fixed)

Where

available

Band

LW

153-279

kHz

9kHz(fixed)

UK

FM/MW/LW

Sw

5,800

-

6,400kHz

—

5kHz(fixed)

Other

countries

FM/MW/LW

FM/MW/SW

*

The

frequency

display

is

raised

or

lowered

by

a

step

of

0.1MHz.(Example:

Frequency

88.05MHz

is

displayed

as

“

88.0MHz“.)

Intermediate

frequency:

FM:

10.7

MHz,

MW:

450

kHz

Speaker:

Approx.

9.2

cm

(3

5/

inches)

dia.

8Q

Power

output:

450

mW

(at

10%

harmonic

distortion)

Output:

Earphone

jack

(minijack)

Power

requirements:

U.K.:240

V

AC,50

Hz

Other

counties:220-230

V

AC,

50

Hz

6

V

DC,

four

R6(size

AA)

batteries

Battery

life:

Approx.

15

hours

listening

for

4

hours

a

day

at

a

normal

volume

using

Sony

batteries

SUM-3

(NS)

Dimensions:

Approx.

240

x

116

x

61

mm

(w/h/d)

(Approx.

9

1/2

x

45/8

x

2

1/2

inches)

not

incl.

projecting

parts

and

controls

Mass:

Approx.

900

g

(2

Ib)incl.

batteries

Accessories

supplied:

AC

power

cord

(1)

FM

antenna

coupler

(1)

(Models

for

Netherlands,

Switzerland,Belgium

and

Scandinavia

only)

.

Design

and

specifications

subject

to

change

FM

/MW/LW

aBand

RDS

Radio

without

notice.

FM/MW/SW

3Band

RDS

Radic

SONY.

TABLE

OF

CONTENTS

Section

Title

Page

Te:

“GENERAL:

ssseecsteetsacnseevesisresaveteinvadeosiitesehsdavetiondean

3

2.

ADJUSTMENTS.

«-000-0::ccesesssssssscsessccscsserseseserssaceserseesece

4

3.

DIAGRAMS

3-1.

IC

Function

©

IC101

(System

Control)

UPD75308GF-R90-3B9

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6

3-2.

Semiconductor

Lead

Layouts

srsrettseeeeerscsccesesevsensecescncensees

q

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Printed

Wiring

Boards

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8

3-4.

Schematic

Diagram

vrrerereeeresescsccecnccecsceteevecsvcecssatesceessees

11

4.

EXPLODED

VIEW

4-1

7

Cabinet

Section

COSCO

tee

r

ener

ea

rremerereeneee

me

reeserresseaseserenestonee

1§

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

This

section

is

extracted

from

instruction

manual.

KEY

PROTECT

POWER

STANDBY

AC

OPERATIONO

MHz/kHz

PRESET

STATION

NAME

©

CLOCK

AUTO

ALTERNATIVE

TRAFFIC

INFO

ADJUST

SEARCH

STATION

R

Ce

_

©

CLOCK

BAND

———_

PRESET

TUNING

—————

e

OOOO?

EYRADIO)

BUZZER

STANDBY

MODE

(O

oa

TUNE/

ENTER/CLOCK

_>

TIME

SET

-

Telescopic

antenna

Antenne

télescopique

Teleskopantenne

R6(AA)x4

|

SECTION

2

ADJUSTMENTS

AM

SECTION

AM

RFF

signal

generator

put

the

lead-wire

antenna

close

to

MO

the

set

(Games

400Hz,

30%

AM

modulation

Output

level:

as

low

as

possible

FM

SECTION

FM

RF

signal

generator

telescopic

antenna

input

(aes

400Hz,

30%

FM

modulation

frequency

devition

+22.5kHz

Output

level:

as

low

as

possible

AM

IF

ADJUSTMENT

Adjust

for

a

maximum

reading

on

VOM.

450

kHz

MW

VCO

ADJUSTMENT

Adjustment

Frequency

Part

Voltmeter

Lg

Confirm

LW

VCO

ADJUSTMENT

Adjustment

Frequency

Reading

on

Digital

Display

Voltmeter

Part

CT5

Confirm

153

kHz

2.3+0.1

V

279

kHz

8.341V

LW

TRACKING

ADJUSTMENT

Adjust

for

a

maximum

reading

on

VOM.

L10

(LW)

162

kHz

243

kHz

EARPHONE

jack

digital

voltmeter

[_]

Jw9

=e

@

Repeat

the

procedures

in

each

adjustment

several

times,

and

the

tracking

adjustments

should

be

finally

done

by

the

trimmer

capascitors.

SW

VCO

ADJUSTMENT

Part

.

Display

Voltmeter

|

is]

MHz

|

8t0lv

|

Part

Display

Voltmeter

Adjustment

Location

LW

Tracking

162

kHz

LW

VCO

153

kHz

FM

Tracking

108

MH

z

MW

Tracking

1,404

kHz

MW

VCO

531

kHz

LW

Tracking

243

kHz

SW

VCO

5.8

MHz

FM

Tracking

87.5

MHz

SW

Tracki

.4

MH

i

MW

Tracking

621

kHz

Packing

Bee

Mz

SW

Tracking

5.8

MHz

N\

UT

SS

NTT

cu

gts

Tae

>

CIEEPET

PEPE

T

ETE

TE

J

@

L10

: -

Oct

=|

c11®

L5

@)cta

cts@)

L918

11

AM

IF

450

kHz

SECTION

3

DIAGRAMS

3-1.

IC

FUNCTION

@

IC

101

(SYSTEM

CONTROL)

vPD75308GF-R90-3B9

$12

10

$20

21

to

24

|

COMO

to

COM3

BIAS

26

to

28

|

VLCO

to

VLC2

29

to

32

|

KSO

to

KS3

=

25

TIMER

(H

:

Alarm

operation

at

radio,

turn

up

the

volume

slightly

when

a

traffic

infomation

is

received)

[as

[eermesr

[0

[tstnirtcteyet

Tas

[ws

fe

OCOC~—SSCSC“CSCSC“S*S*S~S~“S~S~SSS

[ar

[wart

[0

[Wi

Wientiattopmaing

Qos

——SSSCSCSC~“~*~*~*~*~*Y

Tap

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[0

|

Recivingevelouputclck

Wome)

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|

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|

Recivingievloupudan

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Pa

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|

1

|

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SS

Fe

a

[—«

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[0

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[rowen

|

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G@irowroy

SSS

Psi

[More

|

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imum

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|

0

|

Rescving

evel

oupuch

Wome

——SSSSCSCSCSCSCS~*SY

|

53

[FM

ss

||

|

FM

output

(H:

When

FM

receiving)

[se

[vp

—

[romney

oS)

Css

[an

—«df

7

Crystal

oscillation

(32.768kHz)

a

ee

Ee

|

[so

[xed

Ceramic

oscillation

(2.62MHz)

(co

ermone

|

1

|

chanieswicting

wich

(eAvionatineseting

Hino

PS-MODE

fede

|

PS

indication

switching

switch

(L

:

Frequency/station

name

indication,

H

:

Present

time

indication)

Fe

Pane

ee

el

iow

LCD

indication

segment

62

to

67

|

KROto

KRS

69

to

80

|

SOtoSII1

ICF-M50RDS

3-2.

SEMICONDUCTOR

LEAD

LAYOUTS

CXA1019M

(TOP

view)

CXD1118M

14

8

I

7

(TOP

VIEW)

S-80728AN

S-80736AN

S-80745AN

~

V

ae

Output

S-81230PG

S-81240PG

1

Oo

t

1

Wp

Our

Vss

SAA6579T

(TOP

VIEW)

UPD75308GF-R90-3B9

(TOP

VIEW)

2SA1162-G

2SB1295-UL6

28C2712-YG

2SC2714-Y

2SC3395

DTA144TK

DTC144EK

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10E2

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|

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2

3

!

GL3PR8

~

:

short

anobe

cathode

¢

Semiconductor

Location

I I 1 I

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=a

=-—2

=]

OA

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st

rH

OMOON

WA

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Seen

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Note:

@

o—-:

parts

extracted

from

the

component

side.

:

Pattern

from

the

side

F

which

enables

seeing.

(The

other

layers’patterns

are

not

indicated.

)

Caution:

Pattern

face

side:

Parts

on

the

pattern

face

side

seen

from

(Conductor

Side)

the

pattern

face

are

indicated.

Parts

face

side

:

Parts

on

the

parts

face

side

seen

from

the

(Component

Side)

parts

face

are

indicated.

e

Abbreviations

G:

German

aed

ps

1:

FM,

MW,

LW

IT:

Italian

TYPE

2:

FM,

MW,

SW

—8-

—9-

—10—

—

3-4.

SCHEMATIC

DIAGRAM

2

3

4

5

6

7

|

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10

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AFC(U)

AFC(J)

DET

AF

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AF

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SELECT

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AGC

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WW

FILTER

VCC

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C104

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LAT

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pPD75308GF

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28C1623-T1-L5L6

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0,047p:TYPE2,6,1T

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FF

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=

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$-81230PG-PB-T1

|

2SC1623-T1-L5L6

dail

ty

POWER

D0/D

CONVERTER

SWITCH

KRS

cit4

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TYPE

1,

UK

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poe

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See

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LW

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|

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VT

|

if

|

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,

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68P

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|

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c5

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Us

er

Ct

15P

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10P

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47P

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fae

OS

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4

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Spr

SS

KS3

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LCD&KEY

ENT/CLOCK

:

NE—-

/

TIME

SET—

UNE+/

TIME

SET+

4

AND

RAFFIC

INFO

LTERNATIVE

SEARCH

RESET

TUNING

I/A

RADIO

RESET

TUNING2/B

BUZZER

PRESET

TUNNING4

PRESET

TUNNINGS/STAND

BYMODE

ENTER/

CLOCK

®@

Voltages

of

Semiconductors

1C1

1C2

1101

C106

ome

Ate]

(age

Faceicre|

[equ

Fafa]

[en

FoR

L

FM

|

MW

|

FM

|

MW

|

LW

|

SW

|

FM

|

MW

|

FM

|

Mi

beh

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0.8}

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|

Of

0

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a

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|

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|

Ol

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ea)

|

9

|

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ee)

ae

a

ee)

a

ae

a)

|)

|

10

|

Of

0

eae

aa

Ka

35

|"

20).

0

a

a)

|

12

[04]

0

|

36

|

12

|

4]

0

a

ee

ee)

|

37_—|

SC

eee

eee)

|

14

|

13]

0.2

es

a

a)

|

39

|

0.9]

0.9)

|

16

|

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|

40

0.9]

0.9)

0.2

ee

ae

ee

a

a7

a

a)

|

24

|

lo}

iE

c=

Ol

0)

ae

a

Fee

ee

eel

|

ee)

Note:

e@

All

capacitors

are

in

wF

unless

otherwise

noted.

pF:

uur

50WV

or

less

are

not

indicated

except

for

electrolytics

and

tantalums,

Note:

The

components

identified

by

mark

A

or

dotted

eee

BOA

one

Sedan

ee

|

.

line

with

mark

are

critical

for

safety.

Ref

No.

|

FM

|

MW

|

L¥

|

FM

|

MW]

L¥

|

FM

|

MW

[

LY

|

Replace

only

with

part

number

specified.

ae

a

Ee

es

ee

es)

e

:

B+

Line

@

Power

voltage

is

dc

V

and

fed

with

regulated

dc

power

supply

from

external

power

voltage

jack.

e

Voltage

and

waveforms

are

dc

with

respect

to

ground

under

no-signal

(detuned)

conditions.

e@

Voltages

are

taken

with

a

VOM

(Input

Impedance

10M°).

Voltage

variations

may

be

noted

due

to

normal

produc-

tion

tolerances.

@®

Signal

path.

c>

:

FM

@

Abbreviations

G:German

AEP

Pe

1:

FM,

MW,

LW

IT

:

Italian

TYPE

2:

FM,

MW,

SW

[Ref

No.

|

B

|

E

|

O12

|

0.4]

0)

|

13

|

0.6]

0)

|

O14

[5.3]

6

|

O15

|

0.7]

0)

Sony IGF-M50RDS User manual

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