Sony SA-FT7ED / SA-WFT7 / SS-CNF7ED / SS-FRF7ED / WS-FT7 Service Manual ▷ View online
17
17
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
3-8. PRINTED WIRING BOARDS — POWER SECTION — • Refer to page 10 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
B
FILTER
BOARD
BOARD
CN401
C
AMP BOARD
CN603
ON/STANDBY
G
(ON)
R
R
(STANDBY)
DC-DC CONVERTER TRANSFORMER
US,CND MODEL
AEP,UK
MODEL
MODEL
POWER
TRANSFORMER
AEP,UK
MODEL
MODEL
AEP,UK
MODEL
MODEL
US,
CND
MODEL
CND
MODEL
US,CND
MODEL
MODEL
POWER
CN901
AC IN
~
C901
R901
F901
CN902
CN301
S301
CN302
C301
C801 C802
CN801
LD801
C155
R124
C156
C113
Q202
R203
R211
Q201
R201
Q204
C208
R210
R206
R208
R205
C206
C205
Q205
R207
R209
Q206
C114
R113
R114
C118
D103
R115
R116
C117
C119
D106
D105
C207
C120
R121
D102
R151
R119
R152
Q207
R202
R130
Q203
R131
R133
R212
R213
C210
Q208
R134
D110
JP105
JP106
JP107
JP108
JP109
JP110
JP111
JP112
JP113
JP116
JP117
C111
JP118
JP119
JP120
JW101
JP114
WHT
GRY
WHT
GRY
GRY
WHT
GRY
GRY
GRY
GRY
GRY
GRY
GRY
WHT
GRY
GRY
GRY
GRY
GRY
GRY
GRY
CNP101
CNP102
CNP104
JP101
JP102
JP103
C131
C116
IC101
D101
R111
LF101
D151
C112
Q102
Q101
C105
C110
C152
R132
R101
D202
D201
D203
TH101
CN203
CN202
EP151
CN201
T201
C203
RY202
C202
CN202
C101
BLU
BRN
BLU
BRN
BRN
BLU
BLU
BRN
C115
T101
R117
C123
C124
C151
C122
PH101
D104
JW102
R123
D159
R118
RY201
D205
D107
D204
R112
R120
D109
D111
C209
D206
LF102
JW103
C103
CN205
CN205
CP102
C104
R122
JP115
C204
C127
C121
CNP103
G
S
D
G
S
D
18
10
1
9
3 4
2 1
~
~
~
~
2
1
2
1
2
1
2
1
1
1
1
8
1
8
7
3
1
3
1
3
2
1
1-865-575-
11
(11)
1-865-574-
11
(11)
1-865-573-
11
(11)
1-865-570-
11
(11)
(Page 15)
(Page 12)
Ref. No.
Location
D101
C-9
D102
B-6
D103
B-6
D104
C-6
D105
C-6
D106
C-7
D107
D-5
D110
B-6
D111
D-5
D151
E-3
D159
F-5
D201
G-6
D202
G-6
D203
G-6
D204
G-6
D205
E-6
D206
G-6
• Semiconductor Location
IC101
C-7
LD801
I-5
PH101
E-5
Q101
B-5
Q102
C-5
Q201
G-6
Q202
G-6
Q203
G-6
Q204
G-5
Q205
G-5
Q206
G-6
Q207
G-5
Q208
F-4
Ref. No.
Location
Ver. 1.1
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18
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
3-9. SCHEMATIC DIAGRAM — POWER SECTION — • Refer to page 20 for IC Pin Description.
(Page 16)
R124
C121
D202
D201
D203
R203
R201
C208
R206
R208
R205
CN203
C206
C205
R207
R209
CN201
CN202
C207
R121
R151
C127
R119
R152
R202
D205
R131
D204
CN205
D206
C209
R122
D104
CN801
C801
C802
R101
C151
C152
C103
S301
C101
CNP101
C204
RY202
RY201
C112
JW101
JW103
JW102
LF102
LF101
TH101
F901
Q203
Q204
Q205
Q101
IC101
C113
C119
C120
C122
C123
Q102
C155
C156
C210
R213
C114
C116
C115
C118
C117
R212
D101
R118
R120
D109
C124
R123
R132
D151
CP102
T201
C203
C202
CN302
CN301
CN902
CN901
R117
C105
C104
C110
R111
R112
R113
R134
R114
R115
R116
R130
R133
D106
D103
D105
D102
D110
D111
D107
PH101
D159
C131
T101
Q208
EP151
Q207
Q202
Q206
Q201
C301
C901
LD801
C111
R901
R210
R211
(Page 13)
19
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
• IC Block Diagram
IC601 TDA7570 (AMP BOARD)
33
32 31 30 29 28 27
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
26 25 24 23 22 21
OSC
I-O-FCLK
O0-15
THWINT
THWEXT
NTC
5VDIG
+VS-LOW
IN_L-
IN_L+
IN_R+
IN_R-
-2.5V
GPLS
-VS+5
GPL
DGND
CD
CDSEL1
FEEDLIN
-VS2
CDSEL2
-VS1
-VS+VREFL
SNL2
GNLS
GNL
SNL1
SGND
+2.5V
ST-BY
FEEDRIN
-VS3
MUTE
-VS4
-VS+VREFR
SNR2
GNRS
GNR
SNR1
SPL2
PGND
SPL1
+VS
+VS
SPR1
SPR2
+VS-5
GPRS
+VS-VREF1
GPR
TERM.
LEFT
CHANNEL
SIGNAL
PROCESSING
INTERFACE
CHANNEL LEFT LSD +
PROTECTIONS
CHANNEL LEFT HSD +
PROTECTIONS
CHANNEL RIGHT HSD +
PROTECTIONS
CHANNEL RIGHT LSD +
PROTECTIONS
INTERFACE
RIGHT
CHANNEL
SIGNAL
PROCESSING
REF
54 55 56 57 58
59 60 61 62 63 64
4
3
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
1
CLIP
20
SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
1
VSENSE
I
Terminal for detection of AC line voltage.
2
F/B
I
Terminal for frequency modulation with FB.
3
CT
I
Capacitor for oscillator.
4
RT
I
Oscillator frequency setting resistor
5
GND
—
Ground
6
TIMER
I
Capacitor determines the period of abnormal detection.
7
SS
I
Capacitor for a soft start timing.
8
VC1
I
Power supply terminal for the control circuit.
9
OCP
I
Terminal for over current detection and didt protection.
10
VC2
O
Power supply terminal for a driver.
11
P_GND
—
Ground for low side driver.
12
VG_L
O
Output of low side driver.
13
—
—
Not used. (Open)
14
VB
O
Power supply terminal for high side driver.
15
VS
I
Reference voltage terminal for high side driver.
16
VG_H
O
Output of high side driver.
17
—
—
Not used. (Open)
18
VD
I
Terminal for Drain-Kick starting.
• IC Pin Description
IC101 CXD9841P (DC-DC CONVERTER) (POWER Board)
Pin No.
Pin Name
I/O
Pin Description
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