Sony icf sw 20 service manual

Page 1

SERVICE MANUAL

US Model

Canadian Model

AEP Model
UK Model
E Model

Frequency range

Antenna

Speaker
Power output

Output

Power requirements
Battery tile
Dimensions

Weight
Accessories supplied

and selectlyity.

- Band spread system enables you to easily tune in SW

stations.

- Dual converslon circuit effectively reduces SW bands

Design and specifications subject to change without notice.

SPECIFICATIONS

FM: 76 - 108 MHZ (US, Canadian, E model)
87.6 7107.5 MHz (AEP, UK, |ta|iar|,

Saudi Arabia model)
[F: 10.7 MHz
SW1: 5.775-6.425 MHZ
SW2: 6375-7525 MHZ
SW3: 9.375, 10.025 MHZ
SW4: 1161542265 MHZ
SW5: 15.00-15.65 MHZ
SW6: 17.50718.15 MHZ
SW7: 21325-21375 MHZ
1st IF: 10.720135 MHZ
2nd IF: 455 kHz

MW: 530 - 1710 kHz (US, Canadian, E model)
531 - 1602 kHz [AEP, UK, Italian

Saudi Arabia model)
IF: 455 kHz
FM/SW: telescopic antenna
MW: built-in ferrite bar antenna

Approx. 4.4 x 4.4 cm (13/1 x13/4 inches) 8 n
100 mW (at 10% harmonic distortion)

200 mW (maximum output)
Earphone jack (minijack)
3 V DC. two H6 (size AA) batteries.

Approx. 22 hours with Sony SUM-3 (NS)
Approx. 116.5 x 72.5 x 28 mm (w/h/d)

(4V2 x 27/3 x 1%, inches)

Approx. 203 g (7.2 oz) inclo batteries

Earphone (1), Carrying case (1),
Short wave guide (1)

0 Handy FM/MW/SWIVI 9 band receiver with high sensitivity

Interference from other SW stations.

dentiiiéaiiqiil'

E SW BAND selector

[get TUNE (tuntng Indicator)
The Indicator lights up when signal
is received,

at TUNING control

[11 Dial scales

El Hand strap

[,6] Band selectors and indicators
(FM/MW/SW)
The unit turned on wit» the band
selectors.

[fl OFF (power or!) button

it

RE
Lt'él

HOLD switch

Set it 10 the direction 01 [he arrow:

When tlstenlng, to avoid occidental

change or the luncttons.

When not using. to prevent

accidental pressing to turn the

power on.

Speaker

(9) learphone) jack

TONE (MUSIC/NEWS) selector
mustc. lor listening to the music
NEWS tor listening to news, etc.

VOLUME control

Telescopic antenna

FM/ MW/SWl-i
9 BAND RECEIVER

SONY;

Page 2

ICF-SWZO
SECTION 1

an" DISASSEMBLY

FRONT AND REAR CABINET

Note: Follow the disassemblv procedure in the nemerical order given.

0 +BTP2 x 8 (2 pcs.) front cabinet tuning shaft

+ P 20 rear cabinet
.tuning knob 0 ET 2 x

claw
claw

Be careful
not to break off
claws at 7 portions.

DIAL POINTER SETTING

o 1.7 x 3 G dial scale plate
0 M1.4 x 3

0 Match the hole with 7N
l

setting the variable
capacitor gear gap in
the arrow Q direction. 6 switch board

0 tuning belt

0 Turn the
variable capacitor
fully counterclockwise.

(D

center of ®
scratched lines I -

9 First, turn the tuning shaft fully in the arrow 6
direction. Move only the dial pointer in the
arrow Q direction and set it on the center of the
scratched lines on the dial scale plate. Apply suitable
locking compound to 6 portion.