Sony Dream machine icf-c630 User manual

SERVICE MANUAL

Australian Model

ICF-C630

FM/AM CLOCK RADIO

SPECIFICATIONS

Ver 1.0 2003. 06

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

9-877-483-01

2003F04-1

Time display:

12-hour system

Frequency range:

FM: 87.5 - 108 MHz

AM: 530 - 1710 kHz

Speaker:

Approx. 5.7 cm dia., 4 ohm

Power output:

120 mW (at 10% harmonic distortion)

Power requirements:

3 V DC, two R6 (size AA) batteries

External power source:

DC IN 4.5 V

Dimensions:

Approx. 94 ×104 ×82 mm (w/h/d)

incl. projecting parts and controls

Mass:

Approx. 313 g incl. batteries

Accessories supplied:

AC power adaptor (1)

Design and specifications are subject to change without notice.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE

WITH MARK 0ON 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 PUBLISHED BY SONY.

Notes on Chip Component Replacement

•Never reuse a disconnected chip component.

•Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

ICF-C630

TABLE OF CONTENTS

1. SERVICING NOTES

1-1. Dial Pointer Setting ............................................................. 3

1-2. Installing the Tuner Board................................................... 3

2. GENERAL

Choosing Power Sources ......................................................... 4

Setting the brightness of the backlight ....................................4

Setting the Clock .....................................................................4

Improving the reception .......................................................... 4

Operating the Radio................................................................. 4

Setting the Alarm ..................................................................... 4

Setting the Sleep Timer ........................................................... 4

Using the NAP Timer (Count Down Timer) ........................... 4

3. DISASSEMBLY

3-1. Cover Assy .......................................................................... 5

3-2. Tuner Board......................................................................... 6

3-3. Cabinet (Upper) Assy .......................................................... 6

3-4. Microcomputer Board, Key (Left) Board,

Key (Right) Board ............................................................... 7

4. ELECTRICAL ADJUSTMENTS................................... 8

5. DIAGRAMS

5-1. IC Block Diagram ............................................................. 10

5-2. Block Diagram .................................................................. 11

5-3. Printed Wiring Board –Tuner Section– ............................. 12

5-4. Printed Wiring Boards –Micon Section– .......................... 13

5-5. Schematic Diagram ........................................................... 14

5-6. IC Pin Description............................................................. 15

6. EXPLODED VIEWS

6-1. Cabinet (Lower) Section ................................................... 16

6-2. Cover Assy Section ........................................................... 17

7. ELECTRICAL PARTS LIST ........................................ 18

ICF-C630

SECTION 1

SERVICING NOTES

1-2. INSTALLING THE TUNER BOARD

1-1. DIAL POINTER SETTING

front

knob (VOL)

mark

cabinet (lower)

pointer

knob (TUNE)

pointer

knob (VOL)

knob (TUNE)

RV1

screw

(+P2.6 x 8)

TUNER board

Adjust RV1 to the protrusion

on the knob (VOL).

Turn the spindle of CV1 fully

in the arrow direction.

Turn the knob (TUNE) fully

in the arrow direction.

knob (TUNE)

knob (VOL)

ICF-C630 SECTION 2

GENERAL This section is extracted

from instruction manual.

ICF-C630

Note : This set can be disassemble according to the following sequence.

SECTION 3

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

3-1. COVER ASSY

(Page 5)

3-3. CABINET (UPPER) ASSY

(Page 6) 3-2. TUNER BOARD

(Page 6)

SET

3-4. MICROCOMPUTER BOARD,

KEY (LEFT) BOARD,

KEY (RIGHT) BOARD

(Page 7)

two screws

(+P3 x 20)

CN2

red

CN1

cover assy

cabinet (lower) sectio

two screws

(+P3 x 20)

ICF-C630

3-2. TUNER BOARD

3-3. CABINET (UPPER) ASSY

screw

(+P2.6 x 8)

TUNER board

Removal the two solders.

red

black

two screws

(+P2.6 x 8)

cover sub assy

cabinet (upper) ass

two screws

(+P2.6 x 8)

ICF-C630

3-4. MICROCOMPUTER BOARD, KEY (LEFT) BOARD, KEY (RIGHT) BOARD

two screws

(+P2.6 x 8)

MICROCOMPUTER board

claw

cla

KEY (LEFT) board

KEY (RIGHT) board