Sony str a 27 service manual

Page 2

- MODEL IDENTIFICATION -
(Specification Label)

STR-A27, STR- D209, STR- D259

SONY MODEM

FM STEREO/FM-AM RECEIVER

CND model : AC: 120V 60Hz 115W
AEP, 1T. EE. G model : AC : 220V-230V~50/60Hz
100W
UK model : AC: 240V~50Hz 100W
E. AUS model : AC: 110-120V/220-
240V~50/80Hz 170W

Note : CND : Canadian model
G : German
IT : Italian model
EE :East European model

AUS, AU2: Australian model

0 CAUTION
Be sure to use insulation Sheet (A4-959-384-01) when
replacing power transformer because it is safely related
Dart.

SAFETY-RELATED COMPONENT WARNING

COMPONENTS IDENTIFIED BY MARK A OR OOTTED
LINE WITH MARK A ON THE SCHEMATIC DIACRAMS
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 av SONY.

TABLE OF CONTENTS

Section Title Page
1 , GENERAL .......................................... 3

2. DISASSEMBLY

2- 1. Front Panel ..................................... 4
2-2. Panel Board ..................................... 4
2-3. Amplifier Board ................................. 5
2-4, Main/Tuner Board ............................. 5
3. ADJUSTMENT ...................................... 6
4. DIAGRAMS

4- 1. Schematic Diagram -Tuner Section--~

4-2. Printed Wiring Board -Main Section-

4-3. Schematic Diagram -Main Section- --------- 15
4-4. Schematic Diagram -Display Section- ...... 19
4-5. Printed Wiring Board -Display Section----- 23

4-6. Circuit Boards Location ------ 26

4-7. Semiconductor Lead Layouts -----

5. EXPRODED VIEWS

5- 1' Front Section ..................... . 27
5'2. Back Panel Section --------------- - 29
e. ELECTRICAL PARTS LIST -------------------------- 30

ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITEI

LES COMPOSANTS ICENTIEIES PAR UNE MAROUE A
SUR LES OIAORAMMES SCHEMATIOUES ET LA LISTE
DES PIECES SONT CRITIQUES POUR LA SECURITE
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTs OUE PAR DES PIECES SONY DONT LES
NUMEROS SONT DONNES DANS CE MANUEL 0U
DANS LES SUPPLEMENTS PUBLIES PAR SONY.