Sony HT-CT550W / SA-WCT550W Service Manual ▷ View online
SA-WCT550W
17
IC108 S-1170B33UC-OTSTFG
IC109 SI-3010KM-TLS
VOUT
VIN
5
ON/OFF
4
1
VSS 2
NC 3
+
–
–
OVERCURRENT
PROTECTION
THERMAL
SHUTDOWN
REFERENCE
VOLTAGE
ON/OFF
CONTROL
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
–
REF
– POWER Board –
IC910 STR-A6159M
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
SA-WCT550W
18
IC920 STR-W6735N (US, Canadian and Taiwan models)
IC920 STR-W6765N (AEP and UK models)
IC920 STR-W6765N (AEP and UK models)
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. 1.1
SA-WCT550W
19
• IC Pin Function Description
SUB MAIN BOARD IC100 R5F212BASNFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NO USE
-
Not used
2
S-AIR_DATA
I/O
Two-way S-AIR data with the wireless transceiver
3
FW_MODE
I
Not used
4, 5
NO USE
-
Not used
6
RESET
I
System reset signal input from the reset signal generator “L”: reset
7
Xout
O
System clock output terminal (20 MHz)
8
Vss
-
Ground terminal
9
Xin
I
System clock output 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”: on
13
P_CONT1 (3.3V)
O
Power on/off control signal output terminal “H”: on
14
P_CONT_PVDD
O
Power on/off control signal output terminal “H”: on
15 to 20
NO USE
-
Not used
21
LED_GREEN
O
LED drive signal output terminal for LINK/STANDBY indicator (green) indicator “H”: LED on
22
LED_RED
O
LED drive signal output terminal for LINK/STANDBY indicator (red) indicator “H”: LED on
23
PAIRING_LED
O
LED drive signal output terminal Not used
24
NO USE
-
Not used
25
DAMP_SHIFT
O
Clock signal output to the stream processor
26
NO USE
-
Not used
27
DAMP_SCDT
O
Data output to the stream processor
28
DRIVE_RST (EN)
O
Reset signal output to the power amplifi er “L”: reset
29
DAMP_INIT
O
Reset signal output to the stream processor “L”: reset
30
DAMP_OVF
I
Overfl ow signal input from the stream processor
31
DAMP_LATCH
O
Latch signal output to the stream processor
32
DAMP_SOFT_MUTE
O
Soft muting signal output to the stream processor “L”: muting
33
DAMP_OVF2
I
Overfl ow signal input terminal Fixed at “L” in this unit
34
DAMP_LATCH2
I
Latch signal input terminal Not used
35
NO USE
-
Not used
36
AC_CUT
I
AC cut signal input from the reset signal generator
37
FW_TxD
O
Flash write signal output terminal
38
FW_RxD
I
Flash write signal input terminal
39 to 41
NO USE
-
Not used
42
PVDD_SD_EN
O
Shutdown signal output terminal
43
DC_DET
I
Speaker DC detection signal input terminal
44
NO USE
I
Not used
45
DRIVE_SD
I
Shutdown signal input from the stream processor
46
S-AIR FREQ DET
I
S-AIR module frequency detection signal input from the wireless transceiver
47
S-AIR DET
I
S-AIR detection signal input from the wireless transceiver
48
S-AIR_GPIO2
I
S-AIR interrupt signal input from the wireless transceiver
49
KEY_POWER
I
Power key input terminal
50
S-AIR_RESET
O
S-AIR reset signal output to the wireless transceiver “L”: reset
51
KEY_PAIRING
I
SECURE 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 on signal output terminal Not used
56
FAN_DET
I
Fan motor detection signal input terminal Fixed at “L” in this unit
57
S-AIR_RF_FB
O
Not used
58
NO USE
-
Not used
59
Vss
-
Ground terminal
60
NO USE
-
Not used
61
Vref
I
Reference voltage (+3.3V) input terminal
62
Vcc1
-
Power supply terminal (+3.3V)
63
NO USE
-
Not used
64
S-AIR_CLK
O
S-AIR clock signal output to the wireless transceiver
20
SA-WCT550W
SECTION 4
EXPLODED VIEWS
1
4-269-728-01 FOOT
(12X12)
2
2-159-920-01 SCREW, HDD DAMPER
3
3-089-380-01 DAMPER
4
3-087-053-01 +BVTP2.6
(3CR)
5
4-264-985-01 SCREW
4X40
6
A-1807-238-A BASE ASSY (G) (AEP, UK, TW)
6
A-1812-183-A BASE (G) ASSY (U) (US, CND)
7
A-1800-884-A SPEAKER (G) ASSY (AEP, UK, TW)
7
A-1806-089-A SPEAKER (G) ASSY (U) (US, CND)
8
4-282-820-01 CUSHION (LED MT)
0 9
1-770-019-72 ADAPTOR, CONVERSION PLUG 3P (UK)
SP100
1-858-535-11 LOUDSPEAKER (16 cm)
#1
7-685-662-79 SCREW +BVTP 4X14 TYPE2 IT-3
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
CND : Canadian model
TW :
CND : Canadian model
TW :
Taiwan
model
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.
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
tant le numéro spécifi é.
4-1. SPEAKER SECTION
not supplied
(FRONT LED board)
(FRONT LED board)
not supplied
not supplied
not supplied
not supplied
SP100
AMP section
#1
8
4
1
3
5
6
7
2
3
2
1
not supplied
not supplied
not supplied
#1
#1
1
1
9
(UK)
Ver. 1.1
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