Sony STR-DH720 Service Manual page 89

STR-DH720/DH720HP
SERVICE MANUAL
Ver. 1.2 2011.10
In this set, DCDC, DIGITAL, D-VIDEO, MAIN and STANDBY-AVIDEO
MT PC boards have been changed in the midway of production.
Printed wiring board, schematic diagram and electrical parts list of new
type are described in this supplement-1.
Refer to original service manual for other information.
9-890-560-81
SUPPLEMENT-1
File this supplement with the service manual.
Subject: Change of DCDC board (Suffi x-21), DIGITAL
board (Suffi x-21), D-VIDEO board (Suffi x-21),
MAIN board (Suffi x-24) and STANDBY-AVIDEO
MT PC Board (Suffi x-24).
TABLE OF CONTENTS
1. DISCRIMINATION
2. DIAGRAMS
2-1. Printed Wiring Board - DCDC Board - .........................
2-2. Schematic Diagram - DCDC Board - ............................
2-3. Printed Wiring Board - DIGITAL Board (Side A) - ......
2-4. Printed Wiring Board - DIGITAL Board (Side B) - ......
2-5. Schematic Diagram - DIGITAL Board (1/4) -...............
2-6. Schematic Diagram - DIGITAL Board (2/4) -...............
2-7. Schematic Diagram - DIGITAL Board (3/4) -............... 10
2-8. Schematic Diagram - DIGITAL Board (4/4) -............... 11
2-9. Printed Wiring Board - D-VIDEO Board (Side A) - ......... 12
2-10. Printed Wiring Board - D-VIDEO Board (Side B) - ......... 13
2-11. Schematic Diagram - D-VIDEO Board (1/4) - .............. 14
2-12. Schematic Diagram - D-VIDEO Board (2/4) - .............. 15
2-13. Schematic Diagram - D-VIDEO Board (3/4) - .............. 16
2-14. Schematic Diagram - D-VIDEO Board (4/4) - .............. 17
2-15. Printed Wiring Board - MAIN Board - .......................... 18
2-16. Schematic Diagram - MAIN Board (1/4) - .................... 19
2-17. Schematic Diagram - MAIN Board (2/4) - .................... 20
2-18. Schematic Diagram - MAIN Board (3/4) - .................... 21
2-19. Schematic Diagram - MAIN Board (4/4) - .................... 22
2-20. Printed Wiring Board
- STANDBY-AVIDEO MT PC Board - ......................... 23
2-21. Schematic Diagram -
- STANDBY-AVIDEO MT PC Board - ......................... 24
3. ELECTRICAL PARTS LIST
...................................................
............................... 25
US Model
STR-DH720/DH720HP
Canadian Model
AEP Model
STR-DH720
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