Read Sony SA-WD200 Service Manual online
4
4
SA-WD200
-12V
REG
ERROR
AMP
+12V
REG
• Signal Path
: audio
T1
D801- 804
AC
IN
D909
D911
D910
D901
D906
D903
T901
IC907
2
3
IC902
2
1
IC906
1
3
RY801
RY701
D402(1/2)
(GREEN)
D402(2/2)
(RED)
Q204
LED
DRIVER
Q205
LED
DRIVER
Q203
RELAY
DRIVER
Q703
RELAY
DRIVER
Q701,702
PROTECT
PROTECT
Q704
AC-OFF
DETECT
Q801
+12V
+12V
REG
Q901
FEEDBACK
REG
Q802
-12V
REG
J101
LINE
OUT
IN
CN101
Q302
HPF
Q201
SWITCH
Q301
BOOST
SWITCH
Q202
CURRENT
REGULATOR
+12V
VCC
VCC
VSS
1
4
2
3
S
VCC
D
IC901
SWITCHING
REG
FB/OCP
PC901
+12V
-12V
VP(+40V)
POWER
ON/STANDBY
S801
D701
D919
D920
ICE250A-SW
POWER AMP
(SPEAKERS)
SPEAKER IN
TM101
SPEAKER OUT
R+
C+
L+
R-
C-
L-
R
C
L
IC101(1/2)
AMP
IC102(1/2)
AMP
IC102(2/2)
PHASE INVERTER
IC301(1/2)
PHASE CONTROL
IC301(2/2)
HPF
IC302(1/2)
LPF
IC302(2/2)
AMP
IC304(1/2)
HPF
IC304(2/2)
LPF
IC103(1/2)
BUFFER
IC103(2/2)
BUFFER
IC201(1/2)
AMP
IC201(2/2)
LEVEL DETECT
IC101(2/2)
AC AMP
D201
5
6
7
2
1
6
7
5
7
2
1
6
7
2
1
5
6
7
1
1
3
1
3
3
5
7
5
7
3
2
1
NORMAL
REVERSE
PHASE
S502
OFF
ON
BOOST
S301
OFF
AUTO
POWER SAVE
S501
50Hz
200Hz
CUT OFF FREQ.
POWER
ON/STANDBY
50Hz
200Hz
RV302
LEVEL
RV301
220-240V
110-120V
S901
AC SELECT
SWITCH
MY, SP
EXCEPT MY, SP
MIN
MAX
1-2. BLOCK DIAGRAM
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