File name Sony-XM7557 caramp.pdfXM-7557
SERVICE MANUAL US Model
Ver 1.1 2004. 04 Canadian Model
AEP Model
UK Model
E Model
SPECIFICATIONS
STEREO POWER AMPLIFER
9-926-590-12 Sony Corporation
2004D02-1 e Vehicle Company
© 2004.04 Published by Sony Engineering Corporation
1
TABLE OF CONTENTS Notes on chip component replacement
· Never reuse a disconnected chip component.
1. SERVICE MODE ... 3 · Notice that the minus side of a tantalum capacitor may be
damaged by heat.
2. GENERAL ... 4
3. DISASSEMBLY
3-1. Side Plate, Sub 1/Sub 2 and Filer Board ... 7
3-2. Amplifier/Power Board and LED Board ... 7
4. ELECTRICAL ADJUSTMENT ... 7
5. DIAGRAMS
5-1. Block Diagram Amplifier Section ... 8
5-2. Block Diagram Power Section ... 9
5-3. Block Diagram Sub 1/Sub 2 Section ... 10
5-4. IC Block Diagrams ... 10
5-5. Printed Wiring Board Filter/Sub 1/Sub 2 Section ... 11
5-6. Printed Wiring Board Amplifier Section ... 12
5-7. Schematic Diagram
Amplifier(1/3)/Filter/Sub 1/Sub 2 Section ... 13
5-8. Schematic Diagram/Printed Wiring Board
Amplifier (2/3)/LED/TR Section ... 14
5-9. Printed Wiring Board Power Section ... 15
5-10. Schematic Diagram
Power/Amplifier (3/3)/TR/LED Section ... 17
6. EXPLODED VIEWS
6-1. Plate and Cover Section ... 18
6-2. Board and Heat Sink ... 18
7. ELECTRICAL PARTS LIST ... 19
2
SECTION 1
SERVICE NOTE
Clearing the Protector During Repairs
· OVER CURRENT : Detects over |