STR-DH810 - Sony Audio Service Manual (repair manual). Page 3

  .............................................   3

2-1.   Disassembly Flow ...........................................................   5
2-2.   Case .................................................................................  

5

2-3.   Front Panel Section .........................................................   6
2-4.   Back Panel Section .........................................................   6
2-5.   SUPPLY Board ...............................................................   7
2-6.   DIGITAL Board ..............................................................   7
2-7.   ANALOG VIDEO Board ...............................................   8
2-8.   MAIN Board Section ......................................................   8

TEST  MODE 

 ............................................................  

9

ELECTRICAL  CHECK 

 .........................................   12

5-1.  Block Diagram - MAIN Section - ...................................   13
5-2.  Block Diagram - D-VIDEO Section - .............................   14
5-3.  Block Diagram - DSP, S-AIR Section - ..........................   15
5-4.  Block Diagram - AUDIO Section - .................................   16
5-5.  Block Diagram 
 

- PANEL, POWER KEY SUPPLY Section - ..................   17

5-6.  Printed Wiring Board - DIGITAL Board (1/2) - .............   19
5-7.  Printed Wiring Board - DIGITAL Board (2/2) - .............   20
5-8.  Schematic Diagram - DIGITAL Board (1/4) - ................   21
5-9.  Schematic Diagram - DIGITAL Board (2/4) - ................   22
5-10.  Schematic Diagram - DIGITAL Board (3/4) - ................   23
5-11.  Schematic Diagram - DIGITAL Board (4/4) - ................   24
5-12.  Printed Wiring Board - MAIN Board - ...........................   25
5-13.  Schematic Diagram - MAIN Board (1/4) - .....................   26
5-14.  Schematic Diagram - MAIN Board (2/4) - .....................   27
5-15.  Schematic Diagram - MAIN Board (3/4) - .....................   28
5-16.  Schematic Diagram - MAIN Board (4/4) - .....................   29
5-17.  Printed Wiring Board - D-VIDEO Board (1/2) - ............   30
5-18.  Printed Wiring Board - D-VIDEO Board (2/2) - ............   31
5-19.  Schematic Diagram - D-VIDEO Board (1/4) - ...............   32
5-20.  Schematic Diagram - D-VIDEO Board (2/4) - ...............   33
5-21.  Schematic Diagram - D-VIDEO Board (3/4) - ...............   34
5-22.  Schematic Diagram - D-VIDEO Board (4/4) - ...............   35
5-23.  Printed Wiring Board - DSP Board - ..............................   36
5-24.  Schematic Diagram - DSP Board - .................................   37
5-25.  Printed Wiring Board - S-AIR Board - ...........................   38
5-26.  Schematic Diagram - S-AIR Board - ..............................   38
5-27.  Printed Wiring Board - ANALOG VIDEO Board - ........   39
5-28.  Schematic Diagram - ANALOG VIDEO Board - ..........   40
5-29.  Printed Wiring Board - CONNECTION Board - ............   41
5-30.  Schematic Diagram - CONNECTION Board - ..............   41
5-31.  Printed Wiring Boards - PANEL Section - .....................   42
5-32.  Schematic Diagram - PANEL Section - ..........................   43
5-33.  Printed Wiring Board - SUPPLY Board - .......................   44
5-34.  Schematic Diagram - SUPPLY Board - ..........................   45
5-35.  Printed Wiring Board 
 

- TEMP-SENSOR, HEADPHONE Section - .................   46

5-36.  Schematic Diagram 
 

- TEMP-SENSOR, HEADPHONE Section - .................   46

6-1.   Case Section ....................................................................   62
6-2.   Front Panel Section .........................................................   63
6-3.   Back Panel Section .........................................................   64
6-4.   Chassis Section ...............................................................   65

   ..............................   66

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 

the lead free mark due to their particular size)

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 viscous (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  IC2022  ON  THE  DIGITAL  
BOARD
IC2022 on the DIGITAL board cannot exchange with single. 
When this part on the DIGITAL board is damaged, exchange the 
entire mounted board.

NOTE  OF  REPLACING  THE  IC3201,  IC3202,  IC3500  
AND  IC3501  ON  THE  D-VIDEO  BOARD
IC3201, IC3202, IC3500 and IC3501 on the D-VIDEO board 
cannot exchange with single. When these parts on the D-VIDEO 
board are damaged, exchange the entire mounted board.