Sony icf c 390 service manual

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|CF-C390[C390L

SERVICE MANUAL us Model

Canadian Model
E Model
Australian Model

[CF-0390
UK Model
ICF-CSQOL
A E P Model
[CF-0390/0390L
SPECIFICATIONS
Tune display : Battery life :
US, Canadian, UK, Australian model : 12~hour system Approx 35 hours using the 8-006? (U) battery
EXCEPT US, Canadian. UK, Australian model : 24-hour Dimensions :
system Approx. 220 x 47.5 x 153 mm (wlhld)
Frequency range : (86 3/4 x 1 7l: x 6 /r inches) incl. projecting parts and controls
FM : 8715- 108 MHZ Mass : UK model 1 Approx. 610 g (1 lb 6 oz) not incl battery
AM (MW) 2530 - 1,605 kHz (EXCEPT French, Italian model) EXCEPT UK model :Approx 540 g (1 lb 3 oz) not incl.
AM : 526.5 - 1,606.5 kHz (Italian model) battery
LW : 153 - )55 kHz (ICF-C390L)
Speaker: Approx. 6.6 cm (2 5/: inches) din, 8 Ohms Design and specifications are subject to change without notice.
Power output :
100 mW (at 10% harmonic distom'on)
Power requirements :
120V AC, 601-11 (US, Canadian, Central & South America
model)
220 - 230V AC. SOHz (EXCEPT US, Canadian, Central &
South America, E4 model)
110 - 120V. 220 A 230V AC SOISOHZ selectable (E4 model)
For power backup : 9V DC, one 61722 battery
ICF-c3901 : French model

FM/LW CLOCK RADIO
nor-039m : AEP, UK model

FM/MW/LW 3 BAND CLOCK RADIO
S ONY;

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Specifications .....................

TABLE OF CONTENTS

1. GENERAL

Location and Function of Controls .................................... 3

DISASSEMBLY
2-]. Cabinet (Upper) Removal
2-2. Main Board Removal

Installation Power Cord
3. DIAL POINTER INSTALLATION ........................... 6
4. ELECTRICAL ADJUSTMENT ................................. 7
5. DIAGRAMS
5- l. Primed Wiring Boards
(ICF-C390IC390L : French model) ........................... 9
5-2. Schematic Diagram
(lCF-C390/C390L :French model) ............................ ll

5-3. Printed Wiring Boards
(ICP-C390L :AEP, UK model)
54. Schematic Diagram

.. 13

(ICF-C390L :AEP, UK model) ................................. 15
6. EXPLODED VIEW ............................ ........... . 17
7. ELECTRICAL PARTS LIST .................... . l9

MODEL IDENTIFICATION
- Model Number Portion -
Carved on lower cabinet

S ONY.

lCF-CSQO

MODEL N0. W lCF-CEJQOL

US, Canadian. Central &

South America model : AC : 120V~60Hz

AEP, UK, French, Italian, Spanish,

Russian, E13 model : AC : 220 - 230V~50Hz

E4 model : AC : 110 - 120V/220 - 230V
N 50/60Hz

SAFETY-RELATED COMPONENT WARNING"

SAFETY CHECK-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.

LEAKAG E 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 excwd 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester. such as the Simpson 229 or RCA
WT-54-OA. Follow the manufacturers instructions to use these
instruments.

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

3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The limit" indication is 0.7SV,
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 2V AC range are suitable. (See Fig. A)

To Ex ed Metal
Parts £2585!

F-l
$1.5m /

o. 15 uF i-
T_,

- Earth Ground

voltmeter
(0. 75V)

Fig. A. Using an AC voltmeter lo checkAC leakage,

- HOWTO CHANGETHE CERAMIC FILTER
This model is used two ceramic filters of CF2 and CF3.
You must use same type of color marked ceramic filters in
order to meet same specifications.
Therefore, the ceramic filter must change two pieces together
since it's supply two pieces in package as a spare parts.

mark Mark frgqetle'reilsy
red 10.70MI-lz

blue 10.67MHz

orange 10.73MHz

black 10.64MHz

white 10.76MHz

A1TENTION AU couposmr AYANT nAPPorrr
A LA sEcunn'E!

COMPONENTS IDENTIFIED BY MARK A OR DOTIED LINEWITH

MARK A ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS

LIST ARE CRITICALTO SAFE OPERATION.

REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY.

LES COMPOSANTS IDENTIFIES PAR UNE MAROUE A SUR LES

DIAGRAMMES SCHEMATIQUES ET LA LISTE DES PIECES SONT

CRITIQUES POUR LA SECURITE DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIECES SONY

DONT LES NUMERos sou-r DONNES DANS CE MANUEL ou
DANS LES SUPPLEMENTS PUBLIEs PAR souv.

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