Read Sony STR-LSA1 Service Manual online
2
TABLE OF CONTENTS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE WITH
MARK
0
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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
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.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
SERVICE NOTE
• When you want raise the DAC board in order to perform any
repair work, use the jig as shown.
Note:
Route the AC power cord making a loop so that the AC power cord
is routed around the screw hole.
is routed around the screw hole.
Jig No.
(J-2501-009-A)
(J-2501-009-A)
DAC board
AC power cord
SERVICE NOTE
····································································· 2
1. GENERAL
·········································································· 3
2. DISASSENBLY
································································· 9
3. TEST MODE
···································································· 13
4. DIAGRAMS
4-1. Circuit Boards Location ·············································· 17
4-2. Block Diagram Digital Section ······························· 18
4-3. Block Diagram Main/Power Section ······················· 19
4-4. Printed Wiring Board Digital Section ····················· 20
4-5. Schematic Diagram Digital Section (1/2) ··············· 22
4-6. Schematic Diagram Digital Section (2/2) ··············· 23
4-7. Printed Wiring Board DAC Section ························ 24
4-8. Schematic Diagram DAC Section (1/2) ·················· 26
4-9. Schematic Diagram DAC Section (2/2) ·················· 27
4-10. Schematic Diagram Display Section ······················· 28
4-11. Printed Wiring Board Display Section ···················· 29
4-12. Schematic Diagram Main/Power Section ················ 30
4-13. Printed Wiring Board Main/Power Section ············· 31
4-14. IC Pin Function ··························································· 32
4-15. IC Block Diagrams ······················································ 33
4-2. Block Diagram Digital Section ······························· 18
4-3. Block Diagram Main/Power Section ······················· 19
4-4. Printed Wiring Board Digital Section ····················· 20
4-5. Schematic Diagram Digital Section (1/2) ··············· 22
4-6. Schematic Diagram Digital Section (2/2) ··············· 23
4-7. Printed Wiring Board DAC Section ························ 24
4-8. Schematic Diagram DAC Section (1/2) ·················· 26
4-9. Schematic Diagram DAC Section (2/2) ·················· 27
4-10. Schematic Diagram Display Section ······················· 28
4-11. Printed Wiring Board Display Section ···················· 29
4-12. Schematic Diagram Main/Power Section ················ 30
4-13. Printed Wiring Board Main/Power Section ············· 31
4-14. IC Pin Function ··························································· 32
4-15. IC Block Diagrams ······················································ 33
5. EXPLODED VIEWS
5-1. MAIN SECTION ························································ 36
5-2. CHASSIS SECTION ··················································· 37
5-2. CHASSIS SECTION ··················································· 37
6. ELECTRICAL PARTS LIST
······································· 38
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