Sony SA-WCT660 Service Manual ▷ View online
SA-WCT660
13
2-12. LOUDSPEAKER (16 cm) (SP100)
4 loudspeaker (16 cm)
(SP100)
loudspeaker (16 cm)
(SP100)
(SP100)
1 four screws
(BVTP4
u 14)
1 four screws
(BVTP4
u 14)
2 Remove the loudspeaker
(16 cm) (SP100) in the
direction of an arrow.
3
terminal (red)
(wide
side)
3
terminal (black)
(narrow
side)
Note 1: Please spread a sheet under
a unit not to injure top panel.
– Rear bottom view –
red
(wide side)
(wide side)
black
(narrow side)
(narrow side)
:ire VettiQJ
rear side
front side
terminals position
Note 2: When installing the loudspeaker (16 cm) (SP100),
make sure that there is a position of the speaker
terminal to the position shown in the figure below.
– Bottom view –
SA-WCT660
14
MEMO
SA-WCT660
SA-WCT660
15
15
SECTION 3
DIAGRAMS
3-1. BLOCK DIAGRAM
X101
49.152MHz
CLOCK
BUFFER
IC107
OVER LOAD
DETECT
Q106
L.P.F.
L.P.F.
POWER AMP
IC104
DC DETECT
Q105
PWM_B
6 PWM_A
8
PWM_D
16 PWM_C
18
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
STREAM PROCESSOR
IC105
31 DATA
30 BCK
29 LRCK
29 LRCK
21 SCDT
22 SCSHIFT
23 SCLATCH
27 INIT
22 SCSHIFT
23 SCLATCH
27 INIT
FLAGL
19 SOFTMUTE
SL+OUTL1 11
SL-OUTL2 9
SR+OUTR1 6
SR-OUTR2 4
XFSOIN 48
24 FLAGR
25
25
OUT_D
OUT_C 31
36
/SD
5
/RESET_AB
7
/RESET_CD
17
36 XFSIIN
14 XFSOOUT
PRESCALER
IC103
S101
I/1
POWER
DETECT
Q104
D111
P_CONT1 (3.3V) 13
SYSTEM CONTROLLER
IC100
S-AIR_DATA
2
S-AIR_CLK
64
S-AIR_GPIO2
48
S-AIR_RESET
50
DRIVE_RST(EN) 28
DRIVE_SD 45
DAMP_SCDT 27
DAMP_SHIFT 25
DAMP_LATCH 31
DAMP_INIT 29
DAMP_OVF 30
DAMP_SOFT_MUTE 32
DC_DET 43
PVDD_SD_EN 42
P_CONT_PVDD 14
KEY_POWER
49
KEY_PAIRING
51
9
7
X100
20MHz
Xin
Xout
22 LED_RED
21 LED_GREEN
LED DRIVE
Q109, 111
S100
LINK
SHUNT
REGULATOR
IC950
AC1
(AC IN)
F900
TH900
D911
RECT
D900
LINE FILTER
LF900
(AEP, RU, UK,
AUS, CH)
LF901
(US, CND, TW)
POWER CONTROL
IC910
T901
SUB POWER
TRANSFORMER
DRAIN
8
DRAIN
7
ISOLATOR
PC901
ISOLATOR
PC902
VCC
2
FB
4
1
POWER CONTROL
IC920
D
T902
MAIN POWER
TRANSFORMER
D924
D928
D925, 926
OVER LOAD
PROTECT
Q921, 922
Q921, 922
4 VCC
7 OCP/BD
5 OLP/SS
TH920
RECT
D940
D902
6 FB
REGULATOR
Q923
D950
POWER ON/OFF
CONTROL
Q960
ISOLATOR
PC903
POWER VOLTAGE
CONTROL
Q961, 962
+3.3V
REGULATOR
IC108
+3.3V_AMP
+4V
+3.3V_AIR
+1.8V
REGULATOR
IC106
+1.8V
RESET SWITCH
Q102
RESET 6
AC_CUT 36
E3.3V
RESET SIGNAL
GENERATOR
IC101
P_CONT2 12
+12V
REGULATOR
IC109
+12V
32V
D112
D901
D929 D930 D931
SHUNT
REGULATOR
IC940
POWER
DETECT
Q108
SHUT DOWN
SWITCH
Q103
REGULATOR
Q920
B+ SWITCH
Q901
B+ SWITCH
Q110, 112
SIGNAL PATH
SP100
D901
I/1
B+ SWITCH
Q113, 114
RF100
RF MODULATOR
(SWA12-4V RX)
DOUT_RX
LED1_TX/BCK0_RX
LED2_TX/WCK0_RX
MCK_OUT_RX
SDA_STX/LED_BLU
SCL_STX/LED_RED
INT
RESETN
: Canadian model
Abbreviation
CND
: Russian model
RU
: Taiwan model
TW
: Australian model
AUS
: Chinese model
CH
Ver. 1.1
SA-WCT660
SA-WCT660
16
16
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
(ANALOG)
J :
AUDIO
(DIGITAL)
• Abbreviation
AUS :
AUS :
Australian
model
CH
: Chinese model
CND : Canadian model
RU
RU
: Russian model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AUS :
AUS :
Australian
model
CH
: Chinese model
CND : Canadian model
RU
RU
: Russian model
TW :
Taiwan
model
Note: When the complete SUB MAIN board is replaced, re-
fer to “NOTE OF REPLACING THE IC104 ON THE
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 3.
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 3.
Note: When the complete SUB MAIN board is replaced, re-
fer to “NOTE OF REPLACING THE IC104 ON THE
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 3.
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 3.
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
• Waveforms
– SUB MAIN Board –
1
IC100
7 (Xout)
1 V/DIV, 20 ns/DIV
50 ns
1.8 Vp-p
3
IC105
eh (XFSIIN)
1 V/DIV, 50 ns/DIV
82 ns
3.3 Vp-p
2
IC105
qf (XFSOOUT)
500 mV/DIV, 10 ns/DIV
20.4 ns
1 Vp-p
4
IC105
rk (XFSOIN)
500 mV/DIV, 10 ns/DIV
20.6 ns
0.8 Vp-p
5
IC107
2 (A)
100 mV/DIV, 10 ns/DIV
20.6 ns
0.2 Vp-p
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Ver. 1.1
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
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.
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