Table Of Contents; Servicing Notes - Sony STR-K7200 - Av Receiver Component Service Manual

TABLE OF CONTENTS

1. SERVICING NOTES
2. GENERAL
..................................................................
3. DISASSEMBLY
3-1. Disassembly Flow ..........................................................
3-2. Case .................................................................................
3-3. Back Panel Block ............................................................ 10
3-4. Front Panel Block .......................................................... 10
3-5. Main Block ..................................................................... 11
3-6. MAIN Board ................................................................... 11
4. TEST MODE
............................................................ 12
5. ELECTRICAL CHECK
6. DIAGRAMS
6-1. Block Diagram - MAIN Section - ................................... 15
6-2. Block Diagram - HDMI Section - ................................... 16
6-3. Block Diagram - DSP/XM Section - .............................. 17
6-4. Block Diagram - AUDIO Section - ................................. 18
6-5. Block Diagram - POWER SUPPLY Section - ................ 19
6-6. Printed Wiring Board - MAIN Board - ........................... 21
6-7. Schematic Diagram - MAIN Board (1/3) - ..................... 22
6-8. Schematic Diagram - MAIN Board (2/3) - ..................... 23
6-9. Schematic Diagram - MAIN Board (3/3) - ..................... 24
6-10. Schematic Diagram - DIGITAL AB Board (1/5) -.......... 25
6-11. Schematic Diagram - DIGITAL AB Board (2/5) -.......... 26
6-12. Schematic Diagram - DIGITAL AB Board (3/5) -.......... 27
6-13. Schematic Diagram - DIGITAL AB Board (4/5) -.......... 28
6-14. Schematic Diagram - DIGITAL AB Board (5/5) -.......... 29
6-15. Printed Wiring Board
- DIGITAL AB Board (Component Side) -..................... 30
6-16. Printed Wiring Board
- DIGITAL AB Board (Conductor Side) - ...................... 31
6-17. Printed Wiring Board - XM Board - ............................... 32
6-18. Schematic Diagram - XM Board - .................................. 33
6-19. Printed Wiring Boards
- MIC/HEADPHONE Section - ...................................... 34
6-20. Schematic Diagram - MIC/HEADPHONE Section - ..... 35
6-21. Printed Wiring Board - HDMI Board (Side A) - ............ 36
6-22. Printed Wiring Board - HDMI Board (Side B) - ............ 37
6-23. Schematic Diagram - HDMI Board (1/2) - ..................... 38
6-24. Schematic Diagram - HDMI Board (2/2) - ..................... 39
6-25. Printed Wiring Boards - VIDEO Section - ..................... 40
6-26. Schematic Diagram - VIDEO Section - .......................... 41
6-27. Printed Wiring Boards - PANEL Section - ..................... 42
6-28. Schematic Diagram - PANEL Section - .......................... 43
6-29. Printed Wiring Board - DCDC CONVERTER Board - .. 44
6-30. Schematic Diagram - DCDC CONVERTER Board - .... 45
6-31. Printed Wiring Board - STANDBY Board - ................... 46
6-32. Schematic Diagram - STANDBY Board - ...................... 47
7. EXPLODED VIEWS
7-1. Front Panel Section ......................................................... 65
7-2. Back Panel Section ......................................................... 66
7-3. MAIN Section ................................................................. 67
8. ELECTRICAL PARTS LIST
.............................................
......................................... 14
.............................. 68
SECTION 1

SERVICING NOTES

UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
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(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
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: LEAD FREE MARK
Unleaded solder has the following characteristics.
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• Unleaded solder melts at a temperature about 40 °C higher
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than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
NOTE OF REPLACING THE IC3511 AND IC3513 ON
THE HDMI BOARD
IC3511 and IC3513 on the HDMI board cannot exchange with sin-
gle. When IC3511 and IC3513 on the HDMI board are damaged,
exchange the entire mounted board.
NOTE OF REPLACING THE IC1131 ON THE DIGITAL
AB BOARD
IC1131 on the DIGITAL AB board cannot exchange with single.
When IC1131 on the DIGITAL AB board is damaged, exchange
the entire mounted board.
STR-K7200
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