Sony SA-FT3H / SA-WFT3 / SS-CNF3H / SS-FRF3H Service Manual ▷ View online
5
SA-FT3H/WFT3/SS-CNF3H/FRF3H
1-2. MAIN BOARD, POWER AMP BOARD
8
two screws
(+BVTP 3
×
8)
ql
two screws
(+BVTP 3
×
8)
w;
two screws
wa
POWER AMP board
9
screw
(+BVTP 3
×
8)
0
two screws
(+BVTP 3
×
8)
qs
CN402 (6P)
qd
CNP702 (5P)
qf
BC903 (2P)
qg
BC905 (3P)
qj
MAIN board
qh
CN601 (6P)
6
BC601 (3P)
7
BC401 (2P)
qk
CN701 (5P)
5
qa
2
three tapping screws (1)
(3.5
×
20)
3
three tapping screws (1)
(3.5
×
20)
1
tapping screw (1)
(3.5
×
20)
4
tapping screw (1)
(3.5
×
20)
6
SA-FT3H/WFT3/SS-CNF3H/FRF3H
SECTION 2
DIAGRAMS
• Circuit Boards Location
Note on Schematic Diagram:
• All capacitors are in
µ
F 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
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
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.
SP
SP
: Singapore model.
MY
: Malaysia model.
Note on Printed Wiring Boards:
• X
• X
: parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Abbreviation
CND : Canadian model.
SP
SP
: Singapore model.
MY
: Malaysia model.
LED board
MAIN board
CONTROL board
POWER AMP board
POWER SWITCH board
C
B
These are omitted.
E
Q
B
These are omitted.
C
Q
Q
E
B
C
E
7
7
SA-FT3H/WFT3/SS-CNF3H/FRF3H
SA-FT3H/WFT3/SS-CNF3H/FRF3H
2-1. BLOCK DIAGRAM
PRE AMP
IC101
J701
LINE IN
3
2
1
7
5
DRIVE
AMP
Q701-707
FILTER
Q101
FILTER AMP
IC103 (1/2)
PHASE AMP
IC103 (2/2)
1
3
SIGNAL
DETECT
DETECT
Q601,602
VOLTAGE
DETECT
Q603
+12V REG
Q102
RECT
D301-304
T202
SUB TRANSFORMER
LED DRIVE
(RED)
Q608
RELAY/LED
DRIVE
Q605
SIGNAL AMP
IC601
7
6
7
6
AUTO POWER OFF DETECT
IC602
RV102
BASS BOOST
RV101
LEVEL
OVERLOAD
DETECT
Q503,504
+30V
+12V
SUB+9V
+85V
-85V
+30V
-30V
-30V
-12V
SUB+9V
+6.2V
SP401
SPEAKER
AC OFF
DETECT
Q501
D501
SUB+9V
T1
POWER TRANSFORMER
S101
POWER SAVE
S201
POWER
D202
ON/STANDBY
(STANDBY)
(ON)
OFF
AUTO
RY901
RY501
GREEN
RED
F901
AC IN
~
SP402
SPEAKER
S102
PHASE
REVERSE
NORMAL
7
5
1
3
AMP
IC102
7
5
1
3
RECT
D401
D401
RECT
D801-804
RELAY
DRIVE
Q502
LED DRIVE
(GREEN)
Q606,607
POWER
AMP
Q708-711
• Signal path
: LINE
-12V REG
Q103
+6.2V REG
Q604
8
8
SA-FT3H/WFT3/SS-CNF3H/FRF3H
SA-FT3H/WFT3/SS-CNF3H/FRF3H
2-2. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 6 for Circuit Boards Location.
:Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
B
CONTROL
BOARD
CN101
BLK
WHT
WHT
PNK
BLK
PNK
C
POWER SWITCH
BOARD
BC904
WHT
WHT
WHT
A
CONTROL
BOARD
BC602
(Page 9)
WHT
PNK
BLK
3
1
SUB
TRANSFORMER
POWER
TRANSFORMER
SPEAKER
SPEAKER
(Page 9)
(Page 9)
D702
D701
C701
C702
Q705
Q706
Q711
R707
R708
R709
D704
D703
Q708
R702
R704
R703
R713
R719
C707
C703
Q703
Q704
Q707
Q702
Q701
R701
R710
CNP701
C711
C712
C706
C708
R721
R715
JW704
CN702
R711
R712
JW700
R706
R714
R705
JW701
C7000
B1
C709
C710
WHT
WHT
WHT
WHT
RED
R722
Q710
R717
C704
R720
R718
JW702
JW706
R716
5
1
B
C
E
Q709
B
5
1
1
6
C
E
JW703
JW705
JW711
JW710
JW708
JW707
C713
C705
B2
T1
D202
BC202
C609
C610
R619
C601
C602
IC601
IC602
D401
C604
R607
R604
R608
R606
D531
Q601
R609
R610
Q602
R618
Q608
R616
Q604
Q605
Q606
Q607
R613
R614
R615
C607
R611
C605
Q603
D601
D602
D603
BC401
BLU+
BLK–
BLK–
BLK
BLU
GRY
GRY
BLU
Q501
Q504
C504
RY501
C501
BC903
C403
C404
RY901
BC905
T202
D801
D802
D803
D804
CN402
C401
WHT
WHT
WHT
WHT
RED
RED
BLK
YEL
BLK
RED
YEL
C402
C801
C802
C301
CNP702
C511
C512
R511
CN601
C803
C804
R802
R801
R601
C603
R602
R605
C606
8
5
1
1
2
1
3
4
8
5
1
4
6
1
R501
BC601
C303
C611
EP1
JW600
JW601
JW602
JW604
JW605
JW606
JW607
JW611
JW613
JW614
JW617
JW618
JW619
JW620
JW621
F901
YEL
BLU
GRY
GRY
1
4
1
1
5
4
WHT
R803
R804
D502
R508
R603
JW623
D501
Q502
C503
R505
R504
Q503
R506
JW624
JW610
C502
R507
D304
D302
D301
D303
C902
C901
R620
R503
R502
JW612
JW615
JW609
R617
JW628
D901
R901
R621
C612
C608
JW629
D604
C302
(ON)(STANDBY)
ON/STANDBY
G
R
SP402
SP401
+
–
~
~
1-867-370-
(11)
11
1-867-368-
(11)
11
1-867-367-
(11)
11
• Semiconductor
Location
Ref. No.
Location
D202
B-4
D301
E-11
D302
E-11
D303
E-10
D304
E-10
D401
E-9
D501
G-6
D502
F-5
D531
H-2
D601
G-2
D602
G-2
D603
G-2
D604
E-3
D701
B-8
D702
B-8
D703
C-8
D704
C-8
D801
F-12
D802
F-11
D803
F-12
D804
F-12
D901
F-12
IC601
H-2
IC602
G-2
Q501
G-6
Q502
F-5
Q503
F-4
Q504
F-4
Q601
H-1
Q602
G-1
Q603
F-1
Q604
E-2
Q605
E-2
Q606
E-2
Q607
E-2
Q608
E-3
Q701
B-9
Q702
B-8
Q703
C-8
Q704
C-8
Q705
B-9
Q706
A-9
Q707
B-10
Q708
C-11
Q709
C-9
Q710
B-11
Q711
C-10
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