Read Sony HT-K5 / STR-K5 Service Manual online
2
STR-K5
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED LINE
WITH MARK
0
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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
About area codes
The area code of the receiver you purchased is
shown on the lower portion of the rear panel (see
the illustration below).
shown on the lower 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”.
code, are clearly indicated in the text, for example,
“Models of area code AA only”.
CENTER
L
L
R
S
FRONT
R
2-XXX-XXX-XX AA
Area code
TABLE OF CONTENTS
1.
GENERAL
...................................................................
3
2.
DISASSEMBLY
2-1.
Disassembly Flow ...........................................................
4
2-2.
Case .................................................................................
4
2-3.
Front Panel Assy ..............................................................
5
2-4.
KARAOKE Board/AC SELECT Board
(Chilean and Peruvian Models) .......................................
(Chilean and Peruvian Models) .......................................
5
2-5.
MAIN Section .................................................................
6
2-6.
DIGITAL Board/MAIN Board ........................................
6
3.
TEST MODE
..............................................................
7
4.
DIAGRAMS
4-1.
Block Diagram – AUDIO INPUT Section – ...................
8
4-2.
Block Diagram – MAIN Section – ..................................
9
4-3.
Block Diagram – KARAOKE Section – ......................... 10
4-4.
Block Diagram – PANEL Section – ................................ 11
4-5.
Block Diagram
– AUDIO OUT, POWER SUPPLY Section – ................. 12
– AUDIO OUT, POWER SUPPLY Section – ................. 12
4-6.
Schematic Diagram – MAIN Board (1/2) – .................... 14
4-7.
Schematic Diagram – MAIN Board (2/2) – .................... 15
4-8.
Printed Wiring Board – MAIN Board – .......................... 16
4-9.
Schematic Diagram – DIGITAL Board (1/3) – ............... 17
4-10. Schematic Diagram – DIGITAL Board (2/3) – ............... 18
4-11. Schematic Diagram – DIGITAL Board (3/3) – ............... 19
4-12. Printed Wiring Board
4-11. Schematic Diagram – DIGITAL Board (3/3) – ............... 19
4-12. Printed Wiring Board
– DIGITAL Board (Component Side) – .......................... 20
4-13. Printed Wiring Board
– DIGITAL Board (Conductor Side) – ............................ 21
4-14. Printed Wiring Boards – MIC Section – ......................... 22
4-15. Schematic Diagram – MIC Section – .............................. 23
4-16. Printed Wiring Boards – DISPLAY Section – ................. 24
4-17. Schematic Diagram – DISPLAY Section – ..................... 25
4-18. Printed Wiring Board – KARAOKE Board – ................. 26
4-19. Schematic Diagram – KARAOKE Board – .................... 27
4-20. Printed Wiring Boards – POWER SUPPLY Section – .... 28
4-21. Schematic Diagram – POWER SUPPLY Section – ........ 29
4-15. Schematic Diagram – MIC Section – .............................. 23
4-16. Printed Wiring Boards – DISPLAY Section – ................. 24
4-17. Schematic Diagram – DISPLAY Section – ..................... 25
4-18. Printed Wiring Board – KARAOKE Board – ................. 26
4-19. Schematic Diagram – KARAOKE Board – .................... 27
4-20. Printed Wiring Boards – POWER SUPPLY Section – .... 28
4-21. Schematic Diagram – POWER SUPPLY Section – ........ 29
5.
EXPLODED VIEWS
5-1.
Overall Section ................................................................ 39
5-2.
Front Panel Section ......................................................... 40
5-3.
Chassis Section ................................................................ 41
5-4.
MAIN Section ................................................................. 42
6.
ELECTRICAL PARTS LIST
................................ 43
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•
Unleaded solder melts at a temperature about 40
°
C higher
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 flow)
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
occur such as on IC pins, etc.
•
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
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