Sony ICF-C240 User manual

SECTION

ELECTRICAL

ADJUSTMENTS

Section

oii

SERVICE

MANUAL

AEP

Model

isi

[-~}H

Pz)

antenna

the

set,

ICF-C240

TIME

SET-M

button.

ALARM

button

speaker

terminal

semen

TIME

SET-H

button-

SLEEP

button

‘00H,

80%

Repeat

the

procedures

each

adjustment

CLOCK

button.

REPEAT

ALARM/

modulation

several

times,

and

the

frequency

coverage

and

SPEER

OFF

button

s2askiis

frequency

Output

level

tow

possbte

tracking

adjustments

should

finally

done

output

level

:as

low

possible

the

trimmer

capacitors,

ALARM

(RADIO/BUZZER)

Band

(FM/AM)

selector

FREQUENCY

AM_IF

ALIGNMENT

VOL

(volume)

control

COVERAGE

ADJUSTMENT

Adjust

for

maximum

reading

TUNING

control

‘Adjust

for

maximum

reading

VTVM.

VTVM,

87.35(87.3)MHz

455kHz

{

cT2

108.05(108.3)

MHz

FREQUENCY

SPECIFICATIONS

TRACKING

ADJUSTMENT

COVERAGE

ADJUSTMENT

Frequency

range

MAIN

BOARD

REMOVAL

Adjust

for

maximum

reading

Adjust

for

maximum

reading

AEP

model

87.6—107.5MHz

531—1,602kHz

Turn

TUNING

knob

fully

clockwise.

coy)

VTVM

model

87.5—108MHz

526.5—1,606.5kHz

2.6X5

LS,

87.35(87.3)MHz

520(516.5)kHz

einoveiscrew

(48.26%)

108.05

(108.3)

MHz

crt

1,650(1,631.5)kHz

Antenna

FM:

power

cord

antenna

Release

fook,

(_):IT

model

Seu

Lae

ere

esl

Remove

main

board

pressing

down

TUNING

knob.

speaker

pprox.

6.6

(27,

inches)

dia.

¢ "

a i

[AM

TRACKING

ADJUSTMENT]

Power

output

100mW

(at

10%

harmonic

distortion)

Note:

When

installing

main

board,

align

shaft

VOL

knob

TRACKING

ADJUSTMENT.

Power

requirement

220V

AC,

50H2

with

hole

adjustable

resistor.

‘Adjust

for

maximum

reading

For

the

power

backup

function:

VTVM,

DC,

one

battery

Battery

life

Approx.

hours,

using

Sony

battery

S-O06P

(U)

S20kHz

Dimensions

Approx.

181.5x59x144mm

(w/h/d)

CT3

1,400kHz

(7.x

x54,

inches)

incl.

projecting

ports

and

controls.

Weight

Approx.

520g

302)

incl.

batt

not

inch

battery

alle

BOAR

[MAIN

BOARD]

component

side

Design

and

specifications

subject

change

without

notice

adjustable

resistor

FEATURES

Electronic

digital

alarm

clock

and

sleep

timer

are

combined.

Two

wake-up

modes

available:

radio

buzzer

alarm.

REPEAT

ALARM

bar,

operable

with

feather-light

touch,

offers

two

functions:

snooze

alarm

and

sleep

timer

turn

off.

Power

back-up

function

keep

the

clock

operating

during

power

interruption,

using

optional

6F22

battery.

VOL

knob

TuNING

KNos

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

MARK

DOTTED

screw

LINE

WITH

MARK

THE

SCHEMATIC

DIAGRAMS

265

AND

THE

PARTS

LIST

ARE

CRITICAL

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

tas

oaeenmemmseen

FM/AM

DIGITAL

CLOCK

RADIO

SECTION

2-1.

PRINTED

WIRING

BOARDS

DIAGRAMS

Dé

Biock

Diagram

Note:

LED

DISPLAY

IC2

CXA1019S

©—

parts

extracted

from

the

component

side.

[indicates

side

identified

with

part

number.

‘©

888

Pattern

the

side

which

seen.

Semiconductor

Location

Ref.

No.

Location]

Ref.No.

Location

C-2

C-4

C-2

E-4

B-3

D-4

1C2

0-6

0-4

A-3.

C-6

C-3

E-5

cyl

—

}

AM}

|__|

BAND

DRY

BATTERY

S-O06P

IEC

DESIGNATION

6F22

IPC

(POWER

BACK-UP

FOR

CLOCK)

(KEEP

THE

CORRECT

TIME

DURING

POWER

STOPAGE)

2-2.

SCHEMATIC

DIAGRAM

ry]

av]

feed

cxarois

See

page

for

IC2

block

diagram.

foe

tof

2_/os

fou

2SA733TP-P

FRAN

FRONTEND!

ON:

ALARM

LEVEL

SWITCHING

AMP,

DET,

AMP.

ofa

“La

‘4

13 16 1S

eLe

ult

biseu

O-0-0-0-0-0-0-0-0

s42

ea)

ate

celal

5} 8)

fesShao

al a}

| |

2] +!

«|

ss}

S| &] &]

Sa]

S| BF oO

MAIN

BOARD

eee

50k

626

ANTENNA

;

#27

ses

RADIO

Vee

RADIO

GND.

2 3

40/16V

4.3

Logn——+

Dp-+—G

T)—()—-G)}(10)

TRANSFORMER

1S91381-77

OND

VOL

oaM

AFCO

OREGFM

AMC

[ile

sles

wal

Lele

site

D-O-O-O-O-O-_O-O-OD

DIG

CXAIOI9S

(oR

Lesson

gs|

mo om

vee

ritter

‘in

AGE

METER

IFIN IPIN

‘

stock

28¢2001

bL@

O02

OO-@O-BO-@!

Se ee

Sin”

“Ser

Set woo

ise

arr”

our”

OUT

[or

Lee,

43,

a3,

@-O-@-@-@-@-O-W-@-O-O-®

cay

D2.

4.3

[2.4

114.5

0.47"

sssilft-77

iso

“en

‘

Bs)

borate

+14

dere

sinter

Dg.

188133T-77,

+——

sé

DRY

BATTERY

S-OO6P

SLEEP]

[ELock

ALARM

WEG

DESIGNATION

6F22)

bit

ain

(POWER

BACK-UP

FOR

CLOCK)

SEMICONDUCTOR

LEAD

LAYOUTS

188119

10E2

2SA1175-HFE

28C2001-K2

extede

sia

os:

node

eey

TIME

SET.

line

with

mark

are

critical

for

safety.

Note:

The

santa

fhe

mark

dotted

Replace

only

with

part

number

specified.

[—

Eanction]

——

ALARM

]__[ALARM]

[RADIO]

__[orF

BUZZER

*—

[RADIO

ON.

model:

Italian

model.

XX:

Printed pattern

functions

kind

coil.

All

capacitors

are

unless

otherwise

noted.

pF:

5OWV

less

are

not

indicated

except

for

electrolytics

and

tantaluns.

All

resistors

are

and

Wor

less

unless

otherwise

specified.

internal

component.

B+

lines.

Voltage

and

waveforms

are

with

respect

ground

SP1

under

detuned

condit

ions.

mark

():

Voltages

are

taken

with

VOM.

(input

impedance

MQ)

Voltage

variations

may

noted

due

normal.

produc~

tion

tolerances.

Signal

path.

NOTE:

The

mechanical

parts

with

reference

number

the

exploded

views

are

not

supplied.

The

construction

parts

assembled

part

are

indicated

with

collation

num-

ber

the

remark

column.

Items

marked

‘*”

are

not

stocked

since

they

are

seldom

required

for

routine

service.

Some

delay

should

antici-

pated

when

ordering

these

items.

No.

Part

No.

Descr

ipt

ion

3-902-093-51

3-902-093-61

3-902-093-71

3-902-092-01

3-902-092-21

3-902-092-32

(WHITE)

(GRAY).

(BLACK)

3-902-090-11

3-902-090-31

(IT).

3-902-097-01

(WHITE)

3-902-097-21

3-902-097-31

-CABINET

(UPPER)

—

3-903-139-31

3-903-139-41

3-903-139-51

—

3-902-091-01

3-902-091-11

(GRAY

,BLACK

(WHITE).

«KI

PLATE

“ORNAMENTAL

LATE,

ORNAMENTAL

«PLATE,

ORNAMENTAL,

KNOB

(FUNCTION)

CABINET

(UPPER)

‘ABINET

(UPPER)

"ABINET

(LOWER)

sKNOB

(VOL)

(GRAY)

(VOL)

(LIGHT

GRAY)

SECTION

EXPLODED

VIEW

Due

standardization,

parts

with

part

number

suffix

-XX

and

-X

may

dif-

ferent

from

the

parts

specified

the

components

used

the

set.

Color

Indication

Appearance

Parts

Example:

(RED)

...

KNOB,

BALANCE

(WHITE)

t t

Parts

Color

Cabinet's

Color

Remarks

No.

Part

No.

The

components

identified

dotted

line

with

mark

are

critical

for

safety.

eplace

only

with

part

number

specified.

model:

italian

model

Description

Remarks

3-902-474-01

3-902-474-11

—

*3-902-463-01

7-621-775-20

7-685-648-79

3-902-094-02

901

*A-3615-360-A

*A-3615-361-A

902.

1-535-804-21

903

1-555-795-00

904

“1-535-476-11

-1-808-344-11

SP]

1-503-082-00

f.1-449-940-11

(GRAY

BLACK)...

.KNOB

(TUNING)

(GRAY)

(WHITE)...KNOB

(TUNING)

(LIGHT

GRAY)

CAP

(POINTER)

SCREW

2.6X5

SCREW

+BTP

3X12

TYPEZ

N-S

STOPPER

(REPEAT

ALARM

BAR)

(it).

(AEP)

MOUNTED

PCB,

MAIN

MOUNTED

PCB,

MAIN

SNAP,

BATTERY

CORD,

POWER

TERMINAL

DIODE

SL-1042-79T

SPEAKER

TRANSFORMER,

POWER

ICF-C240

NOTE:

Due

standardization,

replacements

the

parts

list

may

different

from

the

parts

specified

the

diagrams

the

components

used

the

set.

SECTION

ELECTRICAL

PARTS

LIST

Items

marked

“&"

are

not

stocked

since

they

are

seldom

required

for

routine

service.

Some

delay

should

anticipated

when

ordering

these

items.

there

are

two

more same

circuits

set

such

stereophonic

machine,

only

typical

circuit

parts

may

indicated

and

capacitors

and

resistors

other

same

circuits

may

omitted.

Ref.No.

Part

No.

901

*A-3615-360-A

*A~3615-361-A

902

1-535-804-21

903

fA.

1-555-795-00

904

1-535-476-11

1-101-004-00

1-124-120-11

1-101-004-00

C8.

1-130-485-00

1-161-379-00

C10

1-123-356-00

1-126-101-11

C12

1-124-472-11

C13

1-162-851-11

1-123-330-00

cis

1-123-379-00

cl6

1-161-056-00

cl7

1-123-356-00

1-123-369-00

C19

1-102-945-00

C19

1-102-947-00

c20

1-102-961-00

c21

1-102-962-00

1-123-379-00

C23

1-123-379-00

c24

1-123-330-00

C25

1-101-004-00

C27

1-102-958-00

C28

1-102-962-00

C29

1-101-004-00

1-162-851-11

C32

1-102-973-00

C33

1-101-004-00

c34

1-123-379-00

C35

1-126-101-11

C36

1-102-936-00

CFT

1-567-538-71

Cre

1-577-072-11

cT1-4

1-151-614-11

8-719-911-19

8-719-200-02

8-719-911-19

9-955-600-21

CAPACITORS:

MF:

uF,

PF:

wuF.

RESISTORS,

All

resistors

are

ohms.

nonflammable

COILS

MMH:

mH,

UH:

SEMICONDUCTORS

HPA.

HPD...

The

components

identified

mark

dotted

line

with

mark

aré

critical

for

safety.

eplace

only

with

part

number

specified.

‘©

model:

Italian

model

Description

Ref.No.

Part

Description

(IT)....MOUNTED

PCB,

MAIN

——-1-808-344-11

DIODE

SL-1042-79T

(AEP)...MOUNTED

PCB,

MAIN

—-8+719-911-19

DIODE

188119

—-8-719-911-19

DIODE

1$S119

SNAP,

BATTERY

CORD,

POWER

IC]

8-759-821-46

LMBS6ON

TERMINAL

1C2

8+752-035-29

CXAI019S

CERAMIC

0.01MF

Sov

L3_-1-406-150-11

COIL,

OSC

CERAMIC

0.01MF

50v

*1-405-962-00

(AEP)...COIL,

OSC

CERAMIC

0.01MF

50v

1-459-815-11

(IT)....COIL

(WITH

CORE),

OSC

CERAMIC

0.01MF

50v

*1-422-291-11

COIL,

AIR-CORE

(FM

RF)

ELECT

220MF

20%

*1-422-291-11

COIL,

AIR-CORE

(FM

RF)

CERAMIC

0.01MF

50V

1-402-405-11

ANTENNA,

FERRITE-ROD

(MW)

MYLAR

O.01ISMF

SOV

—-8+729-119-76

TRANSISTOR

2SA1175-HFE

CERAMIC

0.0

30%

(16V

-8+729-100-13

TRANSISTOR

25C2001-K2

ELECT

TOMF

20%

«16

ELECT

JOOMF

20%

10V

R4—-1-247-880-11

CARBON

WOK

1/4W

ELECT

470MF

20%

«10V

1-249-398-11

CARBON

/4W

1-249-441-11

CARBON

100K

1/4W

CERAMIC

1MF

20%

16V

—-1=249-439-11

CARBON

6ak

1/4W

ELECT

22MF

20%

16V

1-249-435-11

CARBON

33K

1/4W

ELECT

0.47MF

20%

50V

1-249-441-11

CARBON

TOOK

1/4W

CERAMIC

0.027MF

10%

25V R10

—-1-249-413-11

CARBON

470

«1/4W

ELECT

TOME

208

16V

ELECT

7ME

20% 50V

R11

1=249-423-11

(AEP)...CARBON

3.3K

1/4W

R11

1-249-429-11

(1T)....CARBON

10K

1/4W

(AEP)...CERAMIC

SPF

0.5PF

SOV

(IT)....CERAMIC

10PF

0.5PF

R12

1-249-417-11

CARBON

1/4W

R13

1-249-421-11

CARBON

2.2K

1/4W

CERAMIC

27°F

50V R14

1-249-417-11

CARBON

1/4

CERAMIC

30PF

50V

RIS

1=249-428-11

CARBON

8.2K

(1/4W

ELECT

0.47MF

20%

50V

R16

1-249-417-11

CARBON

1/4W

ELECT

0.47MF

20%

50V

R17

1-249-417-11

CARBON

58/4

ELECT

22M

20%

16V

R18

1-249-441-11

CARBON

WOOK

1/4W

CERAMIC

0.01NF

50V

RV]

1=228-790-00

RES,

VAR,

CARBON

SOK

(VOL)

CERAMIC

20°F

50V

CERAMIC

30°F

SOV

1-572-023-11

SWITCH,

SLIDE

(FUNCTION)

CERAMIC

0.01MF

50v

1-552-370-31

SWITCH,

SLIDE

(BAND)

CERAMIC

0.01MF

50V

1-553-856-00

SWITCH,

KEY

BOARD

CERAMIC

O.1ME

20%

«16

(REPEAT

ALARM/SLEEP

OFF)

1-553-856-00

SWITCH,

KEY

BOARD

(SLEEP)

CERAMIC

100PF

50V

1~553-856-00

SWITCH,

KEY

BOARD

(CLOCK)

CERAMIC

0.01MF

50v

1~553-856-00

SWITCH,

KEY

BOARD

(TIME

SET-H)

ELECT

0.47MF

20%

—

50V

1~553-856-00

SWITCH,

KEY

BOARD

(TIME

SET-M)

ELECT

1OOMF

20%

10V

1-553-856-00

SWITCH,

KEY

BOARD

(ALARM)

CERAMIC

3PF

0.25PF

SOV

SP1

1-503-082-00

SPEAKER

FILTER,

CERAMIC

FILTER,

CERAMIC

1-449-940-11

TRANSFORMER,

POWER

-404-790-11

TRANSFORMER,

(AM)

CAP,

VARIABLE

ACCESSORY

PACKING

MATERIAL

DIODE

1$S119

DIODE

1$S119

3-751-271-41

(AEP)......MANUAL,

INSTRUCTION

DIODE

10E2

(ENGL

ISH,

FRENCH

,GERMAN

DUTCH

,PORTUGUESE

SPANISH)

DIODE

1$S119

3-751-271-51

(AEP,IT)...MANUAL,

INSTRUCTION

DIODE

1SS119

(ENGLISH,

SPANISH,

ITALIAN

SHEDISH)

+3-902-428-01

INDIVIDUAL

CARTON

+*3-902-464-01

CUSHION

English

9g0c0644-1

Sony

Corporation

Printed

Japan

Audio

Group

Published

Customer

Relations

and

Service

Group

=¢g=

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