Sony icf m 400 s service manual

Page 1

SERVICE MANUAL ,,

AEP Model

SPECIFICATIONS

FM MW SW
Frequencyrange 87.5 - 108 MHz 531 - 1,602 kHz 5.800 - 6.400 kHz
Tuning interval 50 kHz 9 kHz 5 kHz

Antennas

Speaker
Power output

Output

FM/SW: TelescOpic antenna

MW Built-in ferrite bar antenna
Approx. 9.2 cm (35/a inches) dia.
250 mW (at 10% harmonic
distortion)

Earphone jack (miniiack) lor 8-ohrn
earphone

Power requirements

Battery lile

Dimensions

Weight

5 V DC with tour R6 {size M)

banenes

240 V AC, 50 Hz (model tor UK.) or

220 V AC 50 Hz (models for other

countries)

Approx. 28 hous of listening tor four

hours a day at a normal volume

using Sony batteries SUM-3 (NS)

Approx. 241 x124x 62 mm (wlhld)
(9'!2 x 5 x 2l2 inches)

incl. projecting parts and controls

Approx. 950 g (2 lb 1 oz)

incl. batteries

Features

Supplied accessory

AC power cord (1)

Design and specifications subject to change without

notice

Note

This appliance oonlorms wrth EEC Directive
87/308IEEC regarding interference suppression.

0 A quartz-control

led PLL (Phase Locked Loop)

synthesizer system using a microcomputer lor

eas/ pinpoint tuning.

The tuned-in frequency is digitally displayed.
- Up to 5 stations in each band can be preset.
- Two alarm modes available: radio or buzzer
0 Digital clock is built-in. The current time and

alarm time are digitally displayed.

v A sleep timer turns the radio off automatically
at the preset time.

- Two different power sources: batteries and

house current

FM/SW/MW/ 3 BAND

PLL SYNTHESIZED RECEIVER
SONY...

Page 2

ICF-M4OOS

SAFETY»RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A 0R DOTTED
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-
LISHED BY SONY.

SECTION 1
GENERAL

{E Location of Controls

av.

H Location of Controls

[1| SCAN/TIME ADJ {adjustoment) +1-
buttons

8 Talesooplo antenna

E] SLEEP button

I] OFF button

I3 AC IN pack (IeII side)

E POWER ONIBAND FMIsw/MW

buttons

E] Battery compartment (bottom)
a ENTER button
TIME SET CLOCK button
m ALARM button

ALARM mode selector (RADIO/BUZZER)

% ALARM SET button

{I} VOLUME control

iE TONE control

E SENS DX/LOCAL selector
ii ® (earphone) lack

fl: Dlsplay window

in PRESET TUNING buttons

2 supp upp TIME SET CLOCK.
Klockan borjar gé,

- Det gér att stalls klockan pa ran lid ocksé
under pégéendee radiomottagning.
0 Tiden visas ocksé efler an radian har slagits

, dsinstéllning

I "fill TIME SET CLOCK Intryckl och tryck in
YIME AN+eller-géng pé géng.
Siffroma andras snabbt, nér endera
knappen + eller - hAIIS intryckl.

Exakt tjdsinstfillnlng medan du Iyssnar pé

tldsslgnaien l telelonen

Iexa Still tlden exakt pé 7:15

1 Sléll liden pé och héll TIME SET CLOCK
intryckt.

2 Slépp upp TIME SET CLOCK i samma
agonblick du hfir tidssignalen i teletonen.