Sony SA-FT7ED / SA-WFT7 / SS-CNF7ED / SS-FRF7ED / WS-FT7 Service Manual ▷ View online
9
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
2-6. ACIN BOARD
1
CN902 (2P)
2
two screws
(+BVTP 3
×
8)
3
ACIN board
Ver. 1.1
10
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
SECTION 3
DIAGRAMS
3-1. CIRCUIT BOARDS LOCATION
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. (p: pF)
• All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
2
: nonflammable resistor.
•
C
: panel designation.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
•
A
: B+ Line.
•
B
: B– Line.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
no mark : POWER ON
tion tolerances.
no mark : POWER ON
∗
: Impossible to measure
• Signal path.
F
: LINE
• Abbreviation
CND : Canadian model.
Note on Printed Wiring Boards:
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
LED board
SW board
AMP board
FILTER board
POWER board
ACIN board
INPUT board
11
11
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
3-2. BLOCK DIAGRAM
3
J701
INPUT
3
4
1
6
7
1
7
5
7
5
1
46
22
28
57
37
36
21
18
17
POWER
AMP
Q651-654
50
3
5
4
64
63
POWER
AMP
Q671-674
THWINT
THWEXT
FEEDRIN
FEEDLIN
GNLS
IN L+
55 MUTE
18 VD
16
VG H
2 F/B
IN R-
GNL
GPL
GPLS
GPRS
GPR
GNR
GNRS
MUTE
Q602,603,607
DC
OFFSET
Q690,692,693
DC VOLTAGE
DETECT
Q604-606
PROTECTION
Q502,503
FILTER
Q501
FILTER AMP
IC503 (1/2)
PHASE AMP
IC503 (2/2)
PRE AMP
IC501 (1/2)
AMP
IC502 (2/2)
AMP
IC501 (2/2)
AMP
IC502 (1/2)
DRIVER AMP
IC601
7
5
SIGNAL
DETECT
DETECT
Q401,402
VOLTAGE
DETECT
Q403
+6.2V REG
Q404
RECT
D201-204
T201
POWER
TRANSFORMER
RELAY/LED
DRIVE
Q201-203,206
SIGNAL AMP
IC401
1
2
7
6
AUTO POWER OFF DETECT
IC402
VR501
BASS BOOST
VR502
LEVEL
OVERLOAD
PROTECT
Q204,205,207
INPEDANCE
DETECT
Q600,689,691
SUB+9V
+6.2V
SUB+9V
+15V REG
Q505,506,551
+25V
+15V
-15V REG
Q507,508,552
-25V
-15V
AC OFF
DETECT
Q208
D206
RY201
RY202
RECT
D101
D101
RECT
D151
D151
DC DETECT
PH101
ON/OFF
DRIVE
Q102
ON/OFF
DRIVE
Q101
12
VG L
9
OCP
8
VCI
SP901
SPEAKER
D604
+25V
SUB+9V
D107
D159
•
Signal path
: LINE
+25V
-25V
T101
DC-DC CONVERTER
TRANSFORMER
S501
PHASE
REVERSE
NORMAL
S401
POWER SAVE
S301
POWER
LD801
ON/STANDBY
OFF
AUTO
RY201
RY202
GREEN
RED
F901
AC IN
~
DC-DC CONVERTER
IC101
12
12
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
3-3. PRINTED WIRING BOARDS — FILTER SECTION — • Refer to page 10 for Circuit Boards Location.
1
A
B
C
D
E
2
3
4
5
6
7
8
9
10
11
12
13
INPUT
Q506
Q505
Q507
Q508
R533
R531
R530
C533
C404
IC503
IC502
IC501
C411
R527
R514
R513
R517
R525
R512
R510
R405
C412
R408
D401
R535
Q503
Q502
D404
R504
R506
R503
R518
R515
R508
R511
R509
R522
R528
R516
R526
R519
R524
R520
R521
R402
C410
D403
R404
R401
R406
D501
R410
R409
R412
R413
R536
R505
R403
C408
C557
C558
C553
C554
C551
C552
C409
C405
C559
IC402
IC401
D500
D402
R407
R523
Q501
C501
Q403
Q402
Q401
R411
JP402
JP405
JP406
JP407
JP408
JP411
JP412
JP415
JP416
JP419
JP421
JP424
JP404
JP418
JP409
JP401
JP410
JP413
JP420
JP422
JP423
JP425
JP403
CNP401
JP414
C520
D552
R551
S501
C521
CN403
VR502
LEVEL
LEVEL
POWER SAVE
S401
AUTO OFF
PHASE
S501
BASS
BOOST
NORMAL REVERSE
VR501
CN401
Q404
CN402
D405
D551
C503
C407
C502
C518
C556
C516
C517
S401
C555
C505
C506
C507
C508
C509
C511
C512
FB501
L551
L552
C406
C402
C560
R552
Q552
Q551
C403
JP417
C510
1
1
3
7
3
1
2
1
WHT
GRY
GRY
GRY
GRY
GRY
GRY
BLK
GRY
WHT
WHT
RED
BLK
RED
WHT
B
P0WER
BOARD
BOARD
CN203
A
AMP BOARD
CN602
1-865-571-
11
(11)
1-865-572-
11
(11)
C701
C702
R701
CNP701
J701
CN701
-1
-2
-1
-2
(Page 15)
(Page 17)
Ref. No.
Location
D401
D-6
D402
C-5
D403
C-5
D404
C-5
D405
C-3
D500
C-4
D501
C-5
D551
B-7
D552
B-7
IC401
C-7
IC402
D-4
IC501
B-4
IC502
B-3
IC503
C-2
Q401
D-6
Q402
D-6
Q403
D-5
Q404
D-4
Q501
C-1
Q502
B-2
Q503
B-2
Q505
B-8
Q506
B-7
Q507
B-9
Q508
B-8
Q551
B-6
Q552
B-6
• Semiconductor
Location
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