Table Of Contents; Model Indentification - Sony STR-W55 Service Manual

220-230V AC, 50/60Hz (EXCEPT UK)
220-240V AC, 50/60Hz (UK)
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
by heat.
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

Section
Specifications ................................................................................... 1
1. GENERAL ............................................................................... 3
2. TEST MODE ........................................................................... 4
3. ELECTRICAL ADJUSTMENTS .......................................... 5
4. EXPLANATION OF IC TERMINALS .................................. 6
5. DIAGRAMS
5-1. Printed Wiring Boards - Main Section- .......................... 10
5-2. Schematic Diagram - Main Section- .............................. 13
5-3. Schematic Diagram - Panel Section- ............................. 18
5-4. Printed Wiring Boards - Panel Section- ......................... 21
5-5. Schematic Diagram - TCB Section- ............................... 23
5-6. Printed Wiring Boards - TCB Section- .......................... 25
6. EXPLODED VIEWS
6-1. Chassis Section ................................................................ 26
6-2. Front Panel Section ......................................................... 27
7. ELECTRICAL PARTS LIST ............................................... 28

MODEL INDENTIFICATION

- BACK PANEL -
Parts No.
4-978-033-6π
4-978-033-2π
Abbreviation
r
AED : Norway, Sweden, Finland, Denmark
- 2 -
Title
Model
UK
AEP, German, Italian, AED
Page