Sony STR-K790 - Model and Component Identification; Rear Panel Identification

3
STR-K790
TABLE OF CONTENTS
1. GENERAL ................................................................... 4
2. TEST MODE ............................................................... 10
3. ELECTRICAL ADJUSTMENT ............................. 12
4. DIAGRAMS ................................................................. 13
4-1. Block Diagram – MAIN Section – .................................. 14
4-2. Block Diagram – DISPLAY/POWER Section – ............. 15
4-3. Printed Wiring Board – DIGITAL Board (Side A) –...... 16
4-4. Printed Wiring Board – DIGITAL Board (Side B) –...... 17
4-5. Schematic Diagram – DIGITAL Board (1/5) – .............. 18
4-6. Schematic Diagram – DIGITAL Board (2/5) – .............. 19
4-7. Schematic Diagram – DIGITAL Board (3/5) – .............. 20
4-8. Schematic Diagram – DIGITAL Board (4/5) – .............. 21
4-9. Schematic Diagram – DIGITAL Board (5/5) – .............. 22
4-10. Printed Wiring Boards – HDMI SW Board,
HDMI BRIDGE Board (AEP, UK only) – ...................... 23
4-11. Schematic Diagram – HDMI SW Board,
HDMI BRIDGE Board (AEP, UK only) – ...................... 24
4-12. Printed Wiring Board – MAIN Board – ......................... 25
4-13. Printed Wiring Board – STANDBY Board – ................. 26
4-14. Schematic Diagram – MAIN Board (1/4) – ................... 27
4-15. Schematic Diagram – MAIN Board (2/4),
STANDBY Board –......................................................... 28
4-16. Schematic Diagram – MAIN Board (3/4) – ................... 29
4-17. Schematic Diagram – MAIN Board (4/4) – ................... 30
4-18. Printed Wiring Board – DISPLAY Board – ................... 31
4-19. Schematic Diagram – DISPLAY Board – ...................... 32
4-20. Printed Wiring Boards – POWER Board, DCAC Board,
HEADPHONE Board – ................................................... 33
4-21. Schematic Diagram – POWER Board, DCAC Board,
HEADPHONE Board – ................................................... 34
5. EXPLODED VIEWS
5-1. Front Panel Section ......................................................... 42
5-2. Chassis Section ................................................................ 43
6. ELECTRICAL PARTS LIST .................................. 44
About area codes
The area code of the receiver you purchased is
shown on the lower right portion of the rear panel
(see the illustration below).
Any differences in operation, according to the area
code, are clearly indicated in the text, for example,
“Models of area code AA only”.
FRONTCENTER
LR
LR
SPEAKERS
Area code
Parts No.
MODEL IDENTIFICATION
– Rear Panel –
Model Part No.
US model 2-896-343-4[]
Canadian model 2-896-343-5[]
AEP, UK models 2-896-343-6[]