Read Sony MHC-W770AV / STR-W770 Service Manual online
— 2 —
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tentalum capacitor may be damaged
• Never reuse a disconnected chip component.
• Notice that the minus side of a tentalum 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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
MODEL IDENTIFICATION
— Model Number Label —
Australian : AC 240V AC, ~ 50/60Hz 170W
Thai : AC 220V AC, ~ 50/60Hz 170W
OTHER MODEL : AC 110-120V, 220-240V selectable
~ 50/60Hz 170W
MODEL IDENTIFICATION
MODEL No.STR-W770
FM STEREO/FM-AM RECEIVER
TABLE OF CONTENTS
1.
GENERAL
······································································ 3
2.
TEST MODE
·································································· 5
3.
DIAGRAMS
···································································· 6
3-1.
Circuit Boards Location ····················································· 6
3-2.
Printed Wiring Board — Panel Section — ························· 7
3-3.
Schematic Diagram — Panel Section — ··························· 9
3-4.
Printed Wiring Board — Main Section — ······················· 12
3-5.
Schematic Diagram — Main Section — ·························· 15
3-6.
Printed Wiring Board and Schematic Diagram
— Power Section — ························································ 19
— Power Section — ························································ 19
3-7.
Printed Wiring Board and Schematic Diagram
— Mic Echo/AV in Section — ········································ 23
— Mic Echo/AV in Section — ········································ 23
3-8.
Printed Wiring Board and Schematic Diagram
— Power Section — ························································ 26
— Power Section — ························································ 26
3-9.
IC Pin Function ································································ 29
3-10. IC Block Diagrams ··························································· 31
4.
EXPLODED VIEWS
4-1.
Main Section ····································································· 33
4-2.
Panel Section ···································································· 34
5.
ELECTRICAL PARTS LIST
··································· 35
General
Power requirements
Power requirements
240V AC, 50/60 Hz (Australian)
220V AC, 50/60 Hz (Thai)
110 - 120V/220-240V AC adjustable, 50/60 Hz
220V AC, 50/60 Hz (Thai)
110 - 120V/220-240V AC adjustable, 50/60 Hz
(OTHER MODEL)
Power consumption
170 watts
Dimensions (w / h / d)
Approx. 280
×
205
×
336 mm
Mass
Approx. 7.0 kg
Design and specifications are subject to change without notice.
Click on the first or last page to see other MHC-W770AV / STR-W770 service manuals if exist.