Sony icf c 50 l service manual

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ICF-CSOL

TERViCTMANU-AL AEP Model

SPECIFICATIONS FEATURES
T|mo dlspIIy 24 hour - Radin Controlled Cluck Auto AdjusI System
' Dual alarm
Frequency range: - Sleep Function
FM 87.5 - I08.D MHZ
MW 530 - I605 kHz
LW 153 - 255 kHz
Speaker: Approx. (7.6 cm (2 7,. inches) dia. 8
ohms

Power output
100an (at 10% hnmumic distortion)
Power requirements:
220 V , 230 V AC, 50 Hz
Dimensions: Approx 133 x 91 x 140 mm
(5 V: x _ V: x 5 V2 II'ICIILS) (w/h/d) incl
projecting pans and mmmls
Mass: Appmx. 675g (1 lb 8 07.)

Design and specificahons subiccl to change
withnul notict

SAFETY-RELATED COMPONENT WARNING"

COMPONENTS IDENTIFIED BV MARK A. OR DOTI'ED
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-

. FM/MW/LW RADIO
comnoum cLocK RADIO

ONY;

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6-1.
6-2.
6-3.

TABLE OF CONTENTS

SERVICING NOTES ................................................. 2
GENERAL .................................................................... 3
DISASSEMBLY .............. 5
DIAL POINTER SETTING .................................... 6
ELECTRICAL ADJUSTMENTS ............................ 7
DIAGRAMS

Printed Wiring Boards . IO
Schematic Diagram .... 13
IC Pin Function Description .............................................. l6
EXPLODED VIEW ..................................................... 18
ELECTRICAL PARTS LIST ................................... 19

1-1.

1-3.

SECTION 1
SERVICING NOTES

CHECK MODE OF LIQUID CRYSTAL DIS-
PLAY PANEL

How to enter the check mode:

Press the + -+

keys simultaneously for more than
5 seconds, and the check mode is activated.

When the check mode becomes active, all LCD are tuned
on, and each time a key is pressed, the display changes so
that the LCD can be checked.

How to release the check mode:

Press the RADIO OFF key, and the normal mode is re

stored.

RESET OF SOFTWARE
Press the CLOCK AUTO ADJUST + CLOCK +
D.S.T. SUMMER T keys simultaneously for more than

5 seconds. and the RAM is cleared and the software is ini-
tialized,

HOW TO CHANGETHE CERAMIC FILTERS

This model is used two ceramic filters of CF2, 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 one package as a spare parts.

Mark Center frequency
CF2
red 10.7OMHZ
blue l0.67MHz
orange 1073MHz
CF3 black 10.64MH2
white 10.76MHz