CFD-S35CP (serv.man3) - Sony Audio Service Manual (repair manual). Page 2

2

CD Section ......................................................................

3

2-1.

Block Diagram – CD Section – .......................................

5

2-2.

Block Diagram – Main Section – ....................................

6

2-3.

Printed Wiring Board – BD90 Section – .........................

8

2-4.

Schematic Diagram – BD90 Section – ............................

9

2-5.

Printed Wiring Boards – Main Section – ......................... 10

2-6.

Schematic Diagram – Main Section (1/2) – .................... 11

2-7.

Schematic Diagram – Main Section (2/2) – .................... 12

2-8.

Printed Wiring Boards – Control Section – ..................... 13

2-9.

Schematic Diagram – Control Section – ......................... 14

2-10. Printed Wiring Boards – Power Section – ....................... 15
2-11. Schematic Diagram – Power Section – ........................... 16

3-1.

Cabinet Section ................................................................ 24

3-2.

Cabinet (Front) Section ................................................... 25

3-3.

Cabinet (Upper) (1) Section ............................................ 26

3-4.

Cabinet (Upper) (2) Section ............................................ 27

3-5.

Cabinet (Rear) Section .................................................... 28

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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 flow)
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.