Pioneer SX-SW404 Service Manual page 21

5
QQ
3 7 63 1515 0
PWM_P_8
(SW)
PWM_M_8
(C) PWM_P_7
PWM_M_7
TE
L 13942296513
PWM_P_4
(SR)
PWM_M_4
(FR) PWM_P_3
PWM_M_3
PWM_P_2
(SL)
PWM_M_2
PWM_P_1
(FL)
PWM_M_1
VALID
R3110
0
GNDD
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6
R3109
1
(FL)
: AUDIO SIGNAL ROUTE(PWM)(Front L ch)
AUDIO
(FR)
: AUDIO SIGNAL ROUTE(PWM)(Front R ch)
(SL)
: AUDIO SIGNAL ROUTE(PWM)(Surround L ch)
(SR)
: AUDIO SIGNAL ROUTE(PWM)(Surround R ch)
(C)
: AUDIO SIGNAL ROUTE(PWM)(Center ch)
(SW)
: AUDIO SIGNAL ROUTE(Sub Woofer ch)
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(AD)
: AUDIO DATA SIGNAL ROUTE
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7
2 9
8
[POWER STAGE]
V+B30
30.5V
R3194
100k
IC3191(2/2)
BA10358F
R3192
6
8
-
Q Q
R3196
7 3 6 7 1 3 1 5 5.6k
R3193
2.2k 5
+
4
5.6k
IC3191 (1/2)
BA10358F
POWER CONFIG
2
8
-
1
DETECT
3
+
4
A
co
.
SX-SW404
7
9 4 2 8
V+B
R3191
ACN7112
0.1
R3199
ACN7112
0.1
0 5 8 2 9 9 4 2 8
CN3201
6-A1
PWM
5/5
GNDD
m
8
9 9
A
B
C
30.5V
9 9
D
B2P-VH
+B
2
GND
1
E
F
A 4/5
21
8