— 2 —
TABLE OF CONTENTS
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
MODEL IDENTFICATION
— Model Number Label —
AEP, UK : AC 220-230V ~ 50/60Hz 240W
Australian : AC 240V ~ 50Hz 240W
E, Singapore : AC 110-120, 220-240V selectable ~ 50/60Hz 240W
MODEL IDENTIFICATION
MODEL NO. HST-471
CASSETTE DECK RECEIVER
1.
GENERAL
• Tuner/Amp Section ···································································· 3
• Deck Section ·············································································· 3
2.
MECHANICAL ADJUSTMENTS
·························· 4
3.
ELECTRICAL ADJUSTMENTS
···························· 4
4.
DIAGRAMS
4-1.
Circuit Boards Location ····················································· 8
4-2.
Block Diagram ··································································· 9
4-3.
Schematic Diagram — Deck Section — ·························· 12
4-4.
Printed Wiring Board — Deck Section — ······················· 15
4-5.
Printed Wiring Board — Main Section — ······················· 17
4-6.
Schematic Diagram — Main Section — ·························· 19
4-7.
Schematic Diagram — Display Section — ······················ 23
4-8.
Printed Wiring Board — Display Section — ··················· 27
4-9.
Printed Wiring Board — Power Section — ····················· 30
4-10. Schematic Diagram — Power Section — ························ 33
4-11. IC Block Diagrams ··························································· 36
4-12. IC Pin Function ································································ 38
5.
REPAIR PARTS LIST
5-1.
Main Section ····································································· 40
5-2.
Front Panel Section ·························································· 41
5-3.
Tape Mechanism Deck Section-1
(TCM-220WR2) ······························································· 42
5-4.
Tapa Mechanism Deck Section-2
(TCM-220WR2) ······························································· 43
6.
ELECTRICAL PARTS LIST
··································· 44
