DOWNLOAD Sony STR-DE725 Service Manual ↓ Size: 8.02 MB | Pages: 58 in PDF or view online for FREE

Model
STR-DE725
Pages
58
Size
8.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-de725.pdf
Date
PREV: Sony DHC-MD555 (serv.man2) Service Manual

Sony STR-DE725 Service Manual ▷ View online

STR-DE725
— 27 —
— 28 —
3-11. SCHEMATIC DIAGRAM — INPUT SECTION —
• See page 61 for IC Block Diagrams.
The components identified by mark 
!
 or dotted
line with mark 
!
 are critical for safety.
Replace only with part number specified.
STR-DE725
— 29 —
— 30 —
3-12. PRINTED WIRING BOARD — DISPLAY SECTION —
• See page 7 for Circuit Boards Location.
Ref. No.
Location
 D100
H-2
D101
E-2
D102
B-13
D103
B-9
D104
C-12
D105
C-12
D106
C-12
D108
C-3
D109
J-6
D110
J-7
D111
J-7
D112
J-8
D113
J-9
D114
I-6
D115
I-7
D116
I-7
D117
I-8
D118
I-9
D119
D-3
D120
H-14
D121
H-14
D122
C-3
D180
B-3
IC101
C-4
IC102
D-6
IC103
C-1
IC104
D-8
IC105
C-7
Q101
C-4
Q102
B-4
Q103
B-11
Q104
B-11
Q105
C-4
Q106
B-11
Q107
B-6
Q108
B-4
Q109
B-11
Q110
B-11
Q111
B-12
Q112
B-12
Q113
B-12
Q114
B-12
Q115
B-12
Q116
B-12
Q117
B-13
Q118
B-13
Q119
B-4
Q120
B-4
Q122
B-3
Q180
B-3
• Semiconductor
Location
1-670-009-
11
(13)
1-670-007-
11
(13)
1-670-014-
11
(13)
1-670-008-
11
(13)
1-670-010-
11
(13)
DISPLAY BOARD
SW BOARD
SP SW BOARD
LED BOARD
L.B
BOARD
1
2
(MULTI CHANNEL DECODING)
1
4
1
4
SHIFT
MUTING
TAPE/MD
CD
TUNER
PHONO
INPUT
MODE
CURSOR MODE
SET UP
MEMORY
DISPLAY
(INDEX)
(EQUALIZER)
(SURROUND)
(SOUND FIELD)
(EQ)
(BASS BOOST)
FM/AM
FM MODE
SLEEP
TUNING
PRESET
TUNING
SPEAKERS
GENRE
MODE
TV/DBS
DVD/LD
VIDEO 2
VIDEO 1
DIRECT
TUNING
0
9
8
7
6
2
3
4
5
1
SOUND FIELD
SOUND
FIELD
ON/OFF
EQ
ON/OFF
BASS
BOOST
1
4
1
4
1
5
B
A
A+B
OFF
B
C
A
4
4
1
1
1
4
9
4
1
4
1
4
1
E
E
E
E
E
E
E
E
E
E
E
64
MULTI
CURSOR
CONTROL
C192
C191
JW231
1
5
1
1
100
81
80
51
50
31
30
E
E
E
E
E
E
E
E
E
1
3
CNS107
1
2
2
1
3
1
2
3
4
16
R122
C124
C123
(Page 43)
(Page 17)
(Page 21)
1
11
10
2
RR22
RR23
RR21
1
2
A
B
C
D
E
F
G
H
I
J
3
4
5
6
7
8
9
10
11
12
13
14
15
STR-DE725
— 31 —
— 32 —
3-13. SCHEMATIC DIAGRAM — DISPLAY SECTION —   
• See page 8 for Waveform.  • See page 51 for IC Pin Function Description.  • See page 61 for IC Block Diagrams.
The components identified by mark 
!
 or dotted
line with mark 
!
 are critical for safety.
Replace only with part number specified.
STR-DE725
— 33 —
— 34 —
3-14. PRINTED WIRING BOARD — SPEAKER SECTION —       • 
See page 7 for Circuit Boards Location.
Ref. No.
Location
• Semiconductor
Location
D543
G-7
D605
F-8
D606
F-9
D607
F-12
D649
F-6
D701
B-7
D702
B-7
D703
B-7
D704
B-7
D705
G-6
D706
F-6
D749
E-5
D751
B-3
D752
B-3
D753
B-3
D754
B-3
IC702
F-10
Q544
F-7
Q609
E-9
Q610
F-9
Q611
F-9
Q645
E-8
Q704
B-7
Q705
B-7
Q706
B-7
Q707
B-6
Q708
B-8
Q710
F-6
Q745
F-6
Q747
E-9
Q748
E-9
Q754
B-3
Q755
A-3
Q756
A-4
Q757
A-2
Q758
B-2
H
N
M
1-670-002-
11
(13)
1-670-035-
11
(13)
REAR AMP BOARD
E
E
E
E
E
E
E
E
E
E
Q
U
V
X
1
1
5
6
1
4
SP BOARD
WOOFER
REAR
CENTER
IMPEDANCE SELECTOR
4-8
TM701
WIRELESS REAR
SPEAKER
1
3
E
E
B C
E
B C
E
B C
E
B
B
C
C
E
E
E
E
B
C
E
1
6
16
1
3
(Page 13)
(Page 14)
(Page 14)
(Page 13)
(Page 43)
(Page 25)
(Page 26)
1
2
A
B
C
D
E
F
G
3
4
5
6
7
8
9
10
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