Sony icf c 730 service manual

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US Model
Canadian Model
AEP Model

E Model
Australian Model

Radio section
Frequency range

Antennas

Speaker
Power output
Output

Power requirements

Battery life
Dimensions

Weight

SPECIFICATIONS

FM AM
US, CND, PA model 87,6-108MHz 5304,710ka
AEP, E, Aus model 87.64I07.5MHZ 531-i,602kHz
IT model 87.57108MH2 526.5-1,$06.5kHz

FM: FM wire antenna

AM: Built-in ferrite bar antenna

Approx: 6.6 cm (25/9 inches) dia.
200 mW (at 10% harmonic distortion)
Earphone jack (mini jack)

120 V AC, 60 Hz (US, CND, PA model)

220 V AC, 50 Hz lAEP, IT, E model)

240 V AC, 50 Hz (AUS model)

For the power backup function: 9V DC, one

6F22 battery

Approx. 80 hours, using Sony battery S-OOGP (U)

Approx: 251 x 71 x 158 mm (wlh/d)
(10 x 2% x 6V4 inches)
inclt projecting parts and controls

Approx, 750 g (12 02) not inclt battery

Design and specifications subject to change without notice.

US, CND, AUS, PA model

AEP, E, lT model

12-hour: system

24-hour system

AM 12:00 = midnight

PM 12100 E noon

0200 = midnight
12:00 = noon

FEATURES

. Dual alarm FM/AM 2-band radio combined with an electric
digital alarm clock and sleep timer.

° Choice oi awakening to radio alarm, buzzer alarm, or dual
alarm: Alarm A (radio) and B (buzzer),

- 24-hour alarm preset system automatically turns alarm on
at same time each day.

. DREAM BAR SNOOZE/SLEEP OFF (US, CND, PA model),
REPEAT ALARM/SLEEP OFF (AEP, E, lT, AUS model),
operable with a feather-light touch, offers functions; snooze
alarm and sleep timer turn off.

- You can preset 8 FM stations for easier tuning

0 For private listening, this radio is equipped with an
earphone jack.

CND model: Canadian model
IT model: Italian model
AUS model: Australian model
PA model: Panama model

DUAL ALARM FM/AM
DIGITAL CLOCK RADlll

SONXG

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ICF-C730

SAFETY CH ECK-OUT

After correcting the original service problem,
perform the following safety check before releasing
the set to the customer:

Check the antenna terminals, metal trim, metallized
knobs, screws, and all other exposed metal parts for
AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to
earth ground and from all exposed metal parts to any
exposed metal part having a return to chassis, must
not exceed 0.5 mA (500 microampers). Leakage
current can be measured by any one of three
methods.

Measuring the voltage drop across a resistor by
means of a VOM or battery-operated AC volt-
meter, The limit indication is 0.75 V, so
analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa
SH-63Trd are examples of a passive VOM that
is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are
suitable. (See Fig. A)

l.

A commercial leakage tester, such as the
Simpson 229 or RCA WT-540A. Follow the
manufacturers instructions to use these instru»
ments.

A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for

' this job.

Fig. A. Using an AC voltmeter to check AC leakage.

To Exposed Metal
Parts on Set

Ac
WWI 1.5m / voltmeter

I0. 75 VI
'._J

-_-' Earth Ground

00-4-0-0-oo .----- ,----- . - --4 .o----------- --------.-.-------¢----- ov----ooo-fi-o¢oov

MODEL IDENTIFICATION
- Model Number Label -

Carved on lower cabinet: US, CND, AEP, E, IT, PA model (MADE IN TAIWAN)
US, CND, AEP, IT model (MADE IN JAPAN)
and AUS model (MADE IN TAIWAN)

Model number label:

SONY.
FM/ AM ZBANDS

MODEL No. ICF-C730

l:I---

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.

{MADE IN JAPAN:
MADE IN TAIWAN: US, CND, AEP, E, IT, AUS, PA model

CND model: Canadian model
lT model: Italian model
AUS model: Australian model
PA model: Panama model

US, CND, PA model: AC: 120V 60 Hz 5W

I:i«- AEP. E. IT model:

AUS model:

AC: 220V N 50 Hz 5W
AC: 240V ~ 50 Hz 5W

US, CND, AEP, IT model

3-903-114-01: US, CND model (MADE IN JAPAN)
3-903-115-01: AEP, IT model (MADE IN JAPAN)
3-902-766-01: AUS model (MADE IN TAIWAN)

ATTENTION AUCOMPOSANT AYANT RAPPORT
A LA SECURITE!

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE &
SUR LES DIAGRAMMES SCHEMATIOUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT NE REMPLACER CES COM-
POSANTS OUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL 0U
DANS LES SUPPLEMENTS PUBLIES PAR SONY.

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