Pioneer SX-SW77 Service Manual page 21

5
PWM_P_8
PWM_M_8
PWM_P_7
PWM_M_7
PWM_P_4
(SR)
PWM_M_4
PWM_P_3
(SL)
PWM_M_3
PWM_P_2
(FR)
PWM_M_2
PWM_P_1
(FL)
PWM_M_1
VALID
R3110
0
VS+3R34
R3109
1
GNDD
AUDIO
5
6
A 4/5
MAIN ASSY
(WYXCN,WVXCN:AWK7883)
(KUXCN:AWK7884)
POWER KONFIG
DETECT
V+B27
R3194
100k
IC3191
BA10358F
R3196 6
8
-
2.2k
7
5
+
4
IC3191
BA10358F
2
8
-
1
3
+
4
VG+12
STBY
(FL)
: AUDIO SIGNAL ROUTE (PWM)(Front Lch)
(FR)
: AUDIO SIGNAL ROUTE (PWM)(Front Rch)
(SL)
: AUDIO SIGNAL ROUTE(PWM)(Surround Lch)
(SR)
: AUDIO SIGNAL ROUTE(PWM)(Surround Rch)
(C)
: AUDIO SIGNAL ROUTE(PWM)(Center ch)
(SW)
: AUDIO SIGNAL ROUTE(PWM)(Sub Woofer ch)
(AD)
: AUDIO DATA SIGNAL ROUTE
SX-SW77
6
7
NOTES
All Capacitors are in p-pF or uF
unless otherwise specified
Ratings : Capacity(uF)/Voltage(V)
Rated Voltage : 50V unless
SQ : CKSQ**(2125size)
CH : CCSRCH(1608size)
(others : CKSRYB(1608size))
JQ : CEJQ
AL : CEAL
(others : CEAT)
All Resistors are in k-k Ω, M-M Ω or Ω
1/8W : RS1/8S***J(3216size)
1/10W : RS1/10S***J(2125size)
(others : RS1/16S***J(1608size)
PWM
V+B
R3191
ACN7112
0.1
R3199
R3192
ACN7112
5.6k
0.1
R3193
5.6k
Power Supply
IC3161
NJM78M12DL1A
R3161
OUT IN
3 1
2 2W 82
GNDD
7
8
A
otherwise specified
B
A 5/5
2-A1
PWM
C
CN3201
B2P-VH
D
2 +B
GND
1
E
F
A 4/5
21
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