Sony SA-WCT370 Service Manual ▷ View online
SA-WCT370
25
– POWER Board –
IC910 STR-A6159M
IC910 STR-A6159M
IC920 STR-W6735N (US and Canadian models)
IC920 STR-W6765N (Except US and Canadian models)
IC920 STR-W6765N (Except US and Canadian models)
1
SOURCE/OCP
8 D
7 D
7 D
5 STARTUP
6 NC
2
VCC
4
FB/OLP
3
GND
THERMAL
SHUTDOWN
DELAY
BUFFER
BLANKING
DISCHARGE
LATCH
INTERNAL
BIAS
UNDERVOLTAGE
LOCKOUT
OVER LOAD
PROTECTION
OVER VOLTAGE
PROTECTION
OVER
CURRENT
PROTECTION
OFF TIMER
DRIVE
+
–
–
S
R
PWM
LATCH
FEED
BACK
BACK
BIAS
BURST
Q
D 1
NC 2
S/GND 3
VCC 4
SS/OLP 5
FB 6
OCP/BD 7
DELAY
Q
R
S
+
–
–
+
–
–
+
–
Q
S
R
+
–
BOTTOM
SELECTOR
COUNTER
OSC
R
Q
S
SOFT START
+
–
–
OVP
REGULATOR
& ICONST
+
–
–
BURST
CONTROL
START/STOP
BURST
PROTECTION
LATCH
DRIVE
REGULATOR
OLP
BSD
BD
OCP
FB
Ver. 1.2
SA-WCT370
26
• IC Pin Function Description
SUB MAIN BOARD IC100 R5F212BASNFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NO USE
O
Not used
2
S-AIR_DATA
I/O
Two-way S-AIR data with the RF modulator
3
FW_MODE
I
Not used
4, 5
NO USE
O
Not used
6
RESET
I
System reset signal input terminal “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
7
Xout
O
System clock output terminal (20 MHz)
8
Vss
-
Ground terminal
9
Xin
I
System clock input terminal (20 MHz)
10
Vcc1
-
Power supply terminal (+3.3V)
11
NO USE
O
Not used
12
P_CONT2
O
Power on/off control signal output terminal “H”: power on
13
P_CONT1 (3.3V)
O
Power on/off control signal output terminal “H”: power on
14
P_CONT_PVDD
O
Power on/off control signal output terminal “H”: power on
15 to 20
NO USE
O
Not used
21
LED_GREEN
O
LED drive signal output terminal for the on/standby lamp (green color) “H”: LED on
22
LED_RED
O
LED drive signal output terminal for the on/standby lamp (red color) “H”: LED on
23
PAIRING_LED
O
LED drive signal output terminal Not used
24
NO USE
O
Not used
25
DAMP_SHIFT
O
Serial data transfer clock signal output to the stream processor
26
NO USE
O
Not used
27
DAMP_SCDT
O
Serial data output to the stream processor
28
DRIVE_RST (EN)
O
Reset signal output to the digital power amplifi er “L”: reset
29
DAMP_INIT
O
Reset signal output to the stream processor “L”: reset
30
DAMP_OVF
I
Overfl ow detection signal input from the stream processor “L”: overfl ow is detected
31
DAMP_LATCH
O
Serial data latch pulse signal output to the stream processor
32
DAMP_SOFT_MUTE
O
Soft muting on/off control signal output to the stream processor “L”: muting on
33
DAMP_OVF2
I
Overfl ow detection signal input terminal Not used
34
DAMP_LATCH2
O
Serial data latch pulse signal output terminal Not used
35
NO USE
O
Not used
36
AC_CUT
I
AC cut detection signal input terminal “L”: AC cut is detected
37
FW_TxD
O
Transmit data output terminal for fl ash writing
38
FW_RxD
I
Receive data input terminal for fl ash writing
39 to 41
NO USE
O
Not used
42
PVDD_SD_EN
O
Shutdown signal output terminal “L”: shutdown
43
DC_DET
I
Speaker DC detection signal input terminal “L”: speaker DC is detected
44
NO USE
O
Not used
45
DRIVE_SD
I
Shutdown signal input from the stream processor “L”: shutdown
46
S-AIR FREQ DET
I
S-AIR module frequency detection signal input terminal Not used
47
S-AIR DET
I
S-AIR detection signal input terminal Not used
48
S-AIR_GPIO2
I
S-AIR interrupt signal input from the RF modulator
49
KEY_POWER
I
Power key input terminal
50
S-AIR_RESET
O
S-AIR reset signal output to the RF modulator “L”: reset
51
KEY_PAIRING
I
LINK key input terminal
52
SUR_MODE_SW
O
Not used
53
SHIMUKE
O
Destination setting terminal Not used
54
MODEL
O
Model setting terminal Not used
55
FAN_ON
O
Fan motor drive signal output terminal Not used
56
FAN_DET
I
Fan motor detection signal input terminal Not used
57
S-AIR_RF_FB
O
Not used
58
NO USE
O
Not used
59
Vss
-
Ground terminal
60
NO USE
O
Not used
61
Vref
I
Reference voltage (+3.3V) input terminal
62
Vcc1
-
Power supply terminal (+3.3V)
63
NO USE
O
Not used
64
S-AIR_CLK
O
S-AIR clock signal output to the RF modulator
27
SA-WCT370
SECTION 5
EXPLODED VIEWS
1
4-485-661-01 CUSHION
(FOOT)
#1
7-685-647-71 SCREW +BVTP 3X10 TYPE2 IT-3 (for SILVER)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3 (for BLACK)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet’s Color
• Abbreviation
AR :
AR :
Argentina
model
AUS :
Australian
model
BR
: Brazilian model
CND : Canadian model
E32
E32
: Latin American model
EA
: Saudi Arabia model
RU
: Russian model
SP
: Singapore model
TH :
Thai
model
5-1. OVERALL SECTION
The components identifi ed by mark
0
or dotted line with mark
0 are critical for
safety.
Replace only with part number specifi ed.
Replace only with part number specifi ed.
Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
RF modulator section
speaker section
1
1
1
1
#1
#1
#1
#1
#1
#1
Ver. 1.2
• Color variation
(B) Black : All models
(S) Silver : AEP, UK models
(B) Black : All models
(S) Silver : AEP, UK models
28
SA-WCT370
5-2. SPEAKER SECTION
51
X-2588-833-1 GRILLE FARME ASSY (for BLACK)
51
X-2588-834-1 GRILLE FRAME ASSY (for SILVER)
52
4-485-629-01 FRONT PANEL (for BLACK)
52
4-485-629-11 FRONT PANEL (for SILVER)
53
4-874-614-32 +BV TAPPING SCREW TYPE-1 3.5
SCA1 A-1989-369-A SPEAKER
(CABINET
ASSY)
(Including LED wire, Connection cable with speaker)
(for BLACK) (US, CND)
SCA1 A-1989-396-A SPEAKER
(CABINET
ASSY)
(Including LED wire, Connection cable with speaker)
(for BLACK) (Except US, CND)
SCA1 A-1989-401-A SPEAKER
(CABINET
ASSY)
(Including LED wire, Connection cable with speaker)
(for SILVER) (AEP, UK)
SP1
1-858-971-11 LOUDSPEAKER (10X15 cm)
#2
7-685-647-71 SCREW +BVTP 3X10 TYPE2 IT-3
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
52
53
53
53
53
#2
#2
#2
#2
#2
#2
#2
#2
SCA1
SP1
not supplied
(SUB LED board)
(SUB LED board)
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
Ver. 1.2
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