Read Sony SAVA-57 Service Manual online
— 2 —
MODEL IDENTIFICATION
— BACK PANEL — (L-ch)
— BACK PANEL — (L-ch)
Parts No.
PARTS No.
US model
CND model
AEP, UK, G, E, SP, MY,
TH, AUS model
CH model
MODEL
4-991-281-0
4-991-281-1
4-991-281-2
4-991-281-3
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK
!
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 PUBLISHED BY SONY.
TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 3
2. GENERAL
.......................................................................... 4
3. DISASSEMBLY
3-1. Front Panel Assembly ........................................................... 5
3-2. Amplifier Block .................................................................... 5
3-2. Amplifier Block .................................................................... 5
4. TEST MODE
....................................................................... 6
5. ELECTRICAL ADJUSTMENTS
................................. 6
6. DIAGRAMS
6-1. Circuit Boards Location ........................................................ 8
6-2. Printed Wiring Board — Display Section — ........................ 9
6-3. Schematic Diagram — Display Section — ........................ 11
6-4. Schematic Diagram — Main Section — ............................ 13
6-5. Printed Wiring Board — Main Section — .......................... 17
6-6. Schematic Diagram — P. S Section — ............................... 20
6-7. Printed Wiring Board — P. S Section — ............................ 23
6-8. Printed Wiring Board — Transmitter Section — ................ 25
6-9. Schematic Diagram — Transmitter Section — .................. 27
6-10. Printed Wiring Board — Receiver Section — .................. 29
6-11. Schematic Diagram — Receiver Section — ..................... 31
6-12. IC Block Diagrams ............................................................ 33
6-13. IC Pin Function ................................................................. 36
6-2. Printed Wiring Board — Display Section — ........................ 9
6-3. Schematic Diagram — Display Section — ........................ 11
6-4. Schematic Diagram — Main Section — ............................ 13
6-5. Printed Wiring Board — Main Section — .......................... 17
6-6. Schematic Diagram — P. S Section — ............................... 20
6-7. Printed Wiring Board — P. S Section — ............................ 23
6-8. Printed Wiring Board — Transmitter Section — ................ 25
6-9. Schematic Diagram — Transmitter Section — .................. 27
6-10. Printed Wiring Board — Receiver Section — .................. 29
6-11. Schematic Diagram — Receiver Section — ..................... 31
6-12. IC Block Diagrams ............................................................ 33
6-13. IC Pin Function ................................................................. 36
7. EXPLODED VIEWS
7-1. Front Speaker System (RIGHT) Section ............................ 37
7-2. Front Speaker System (LEFT) Section ............................... 38
7-3. Amplifier Section ................................................................ 39
7-4. Transmitter Section (EMT-VA57) ....................................... 40
7-5. Rear Speaker (PASSIVE) Section (SA-IF57) ..................... 41
7-6. Rear Speaker (ACTIVE) Section (SA-IF57) ...................... 42
7-2. Front Speaker System (LEFT) Section ............................... 38
7-3. Amplifier Section ................................................................ 39
7-4. Transmitter Section (EMT-VA57) ....................................... 40
7-5. Rear Speaker (PASSIVE) Section (SA-IF57) ..................... 41
7-6. Rear Speaker (ACTIVE) Section (SA-IF57) ...................... 42
8. ELECTRICAL PARTS LIST
........................................ 43
• Abbreviation
CND : Canadian model.
G
G
: German model.
SP
: Singapore model.
MY : Malaysia model.
TH
TH
: Thai model.
AUS : Australian model.
CH
CH
: Chinese model.
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