STR-DE400 - Sony Audio Service Manual (repair manual). Page 3

3

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

4

............................................................... 10

3-1.

Block Diagram – MAIN Section – .................................. 14

3-2.

Block Diagram – DISPLAY/POWER Section – ............. 15

3-3.

Printed Wiring Board  – DIGITAL Board (Side A) – ...... 16

3-4.

Printed Wiring Board  – DIGITAL Board (Side B) – ...... 17

3-5.

Schematic Diagram  – DIGITAL Board (1/3) – .............. 18

3-6.

Schematic Diagram  – DIGITAL Board (2/3) – .............. 19

3-7.

Schematic Diagram  – DIGITAL Board (3/3) – .............. 20

3-8.

Printed Wiring Board  – MAIN Board – ......................... 21

3-9.

Schematic Diagram  – MAIN Board (1/3) – ................... 22

3-10. Schematic Diagram  – MAIN Board (2/3),

HEADPHONE Board – ................................................... 23

3-11. Schematic Diagram  – MAIN Board (3/3),

ADCC Board, STANDBY Board – ................................. 24

3-12. Printed Wiring Boards

– ADCC Board, HEADPHONE Board – ........................ 25

3-13. Printed Wiring Board  – STANDBY Board – ................. 26
3-14. Printed Wiring Board  – DISPLAY Board – ................... 27
3-15. Printed Wiring Boards

– TUNING Board, POWER Board – .............................. 28

3-16. Schematic Diagram  – DISPLAY Board,

TUNING Board, POWER Board – ................................. 29

3-17. Printed Wiring Board  – VIDEO Board – ........................ 30
3-18. Schematic Diagram  – VIDEO Board – .......................... 31

4-1.

Front Panel Section ......................................................... 39

4-2.

Chassis Section ................................................................ 40

.................................. 41

There are two kinds of sets by POWER AMPLIFIER IC (IC501,
IC601, IC701: on MAIN board) used with this model.

Type1 :  6-600-450-01

IC STK350-530-E

Type2 :  6-710-828-01

IC STK350-530T-E

Ref. No.

Type1 : STK350-530-E

Type2 : STK350-530T-E

Wiring Board

Location

C504

1-102-233-00

CERAMIC      33PF       10%     500V

1-101-810-00

CERAMIC      100PF       5%     500V

D-6

C554

1-102-233-00

CERAMIC      33PF       10%     500V

1-101-810-00

CERAMIC      100PF       5%     500V

D-7

C604

1-102-233-00

CERAMIC      33PF       10%     500V

1-101-810-00

CERAMIC      100PF       5%     500V

D-7

C654

1-102-233-00

CERAMIC      33PF       10%     500V

1-101-810-00

CERAMIC      100PF       5%     500V

D-8

C704

1-102-233-00

CERAMIC      33PF       10%     500V

1-101-810-00

CERAMIC      100PF       5%     500V

F-3

IC501

6-600-450-01

IC STK350-530-E

6-710-828-01

IC STK350-530T-E

E-6

IC601

6-600-450-01

IC STK350-530-E

6-710-828-01

IC STK350-530T-E

E-8

IC701

6-600-450-01

IC STK350-530-E

6-710-828-01

IC STK350-530T-E

F-3

As for the set of type1 and type2, the parts on the Main board in the
table below are different.
When repairing, please confirm the type name printed on IC at the
beggining and use the parts corresponded to the table below.