Sony ICF-C112 Manual de usuario

SERVICE MANUAL

E Model

ICF-C112

FM/AM CLOCK RADIO

SPECIFICATIONS

Ver 1.0 2003. 03

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

9-877-123-01

2003C0400-1

Time display:

12-hour system

Frequency range:

FM: 87.5 - 108 MHz

AM: 530 - 1710 kHz

Speaker:

Approx. 6.6 cm (2 5/8 inches) dia., 8 ohm

Power output:

120 mW (at 10% harmonic distortion)

Power requirements:

120 V AC, 60 Hz

For the power backup function: 9V DC, one 6F22 battery

Battery life:

Approx. 14 hours, using Sony 006P (6F22) battery

Dimensions:

Approx. 135 ×100 ×130 mm (w/h/d)

(5 3/8 ×4 ×5 1/8 inches) incl. projecting parts and controls

Mass:

Approx. 570 g (1 lb 4 oz) not incl. battery

Design and specifications are subject to change without notice.

TABLE OF CONTENTS

1. SERVICING NOTES

1-1. Cord Dressing (Power Cord)............................................... 3

1-2. Pointer Alignment ............................................................... 3

2. GENERAL

Installing the Battery ............................................................... 4

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

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

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

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

3. DISASSEMBLY

3-1. Panel (Front)........................................................................ 5

3-2. Cabinet (Upper) Single Assy............................................... 6

3-3. Main Board Section ............................................................ 6

3-4. Main Board, LED101, Switch Board .................................. 7

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

5. DIAGRAMS

5-1. Block Diagram .................................................................. 11

5-2. Printed Wiring Boards....................................................... 12

5-3. Schematic Diagram ........................................................... 13

5-4. IC Block Diagrams............................................................ 14

6. EXPLODED VIEWS

6-1. Cabinet (Upper) Section.................................................... 15

6-2. Main Board Section .......................................................... 16

7. ELECTRICAL PARTS LIST ........................................ 17

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-C112

SECTION 1

SERVICING NOTES

1-1. CORD DRESSING

(POWER CORD)

1) Set the power cord as shown in the figure.

2) Mount the chassis with power cord retainer

board and screws (P 3 ×10).

Note: Tighten completely the screws (P 3 ×10).

1-2. POINTER ALIGNMENT

screw P 3x10

power cord retainer boar

power cord

P 3x10

pointer

knob (tuning)

MAIN board

chassis

ICF-C112 SECTION 2

GENERAL This section is extracted

from instruction manual.

ICF-C112

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. PANEL (FRONT)

(Page 5)

SET

3-2. CABINET (UPPER) SINGLE ASSY

(Page 6)

3-3. MAIN BOARD SECTION

(Page 6)

3-4. MAIN BOARD, LED101, SWITCH BOARD

(Page 7)

P 2.6x8

panel (front)

claws

ICF-C112

3-2. CABINET (UPPER) SINGLE ASSY

3-3. MAIN BOARD SECTION

P 3x30

cabinet (upper) single ass

P 3x10

Removal the solders.

CN1

MAIN board section

ICF-C112

3-4. MAIN BOARD, LED101, SWITCH BOARD

P 3x10

claw

MAIN board

SWITCH boar

Removal the solders.

LED101