Sony icf b 50 service manual

Page 1

ICF-BSD

Tourist Model

.m.

AM! I.

SPECIFICATIONS

Frequency range
FM : 76- 108MHz
AM : 530 4.605 kHz

Speaker
Approx. 4.5 cm (1 3/4 inches) dia,. 8 ohms

Power output
90 mW (at 10% harmonic distortion)

Output
@jack (minijaek)

Power requirements
3v DC. two R6 (size AA) batteries or CR-123A
Lithium battery

Dimensions
Approx. 126 x 98.5 x 50 mm (w/h/d)
(5 X 4 X 2 in)

Mass
Appmx. 220 g (7,8 oz)
Approx. 295 g (10.4 oz) incl. batteries and
projecting parts

Supplied accessories
Batteries (2)
Earphone (l)
Earphone case (1)
Shoulder strap (1)

Design and specifications are subject to change
without notice.

FEATURES

A helplul emergency radio [or emergencles and
disasters
- Walerrresistant against light rain and snow".
. bong-term preservative lithium battery
installed.
- Useful at hand light attached.

* This units water-resistance may be used in light
rain or snow, do not use the unit in heavy rain or
snow, or underwater. Avoid leaving the unit for a
long period of time in a humid place like the
bathroom which may lead the unit to a
malfunction,

** Preservation is better compared to the regular dry
batteries, Longrlenn preservation is possible
when not in use.

Notes on Chip Component Replacement

0 Never reuse a disconnected chip component.

0 Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

FM/AM RADIO

SONY;

Page 2

SECTION 1
GENERAL

1-1. IDENTIFYING THE PARTS

Telescopic antenna
359.5 EIll-l

Light (over

WE "1 LIGHT

Light

E 0 E
I I Tune

--TUNE

® (earphone) jack _._.

®(0|°I§)-I - POWER - BAND

HOWTO CHANGETHE CERAMIC FILTERS

This model is used two ceramic filters of CFl and 3.

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.

Center
mark1 mark2 mark1 mark2 markl 111me Frequency
red - 10.70 MHz
7/. W l/ //
a blue - 10.67 MHz
CFS orange - 10.73 MHz

I ll black - 10.64 MHZ
I while - 10.76 MHz

white white 10.75 MHz

yellow - 10.79 MHz