20
KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
K
L
M
N
O
X34-3402-7x (3/4)
4.7K
4.7K
22K
22K
22K
22K
22K
22K
22K
22K
22K
22K
2.3V
0V
4.6V
0V
10.2V
14.4V
14.4V
5.0V
8.1V
14.4V
8.1V
13.6V
5.0V
VDD
5V
0V
6.8V
0V
4.5V
0V
0V
14.4V
0V
6.8V
6.8V
0V
6.9V
2.0V
4.3V
0V
VDD
10V
14.4V
7.0V
6.8V
0V
6.8V
6.9V
7.0V
4.8V
6.9V
0V
14.4V
∗
IC4
IC3
∗
D260
R
Q352
∗
WH1
Q351
L
REAR
Q330
J6
LX BUS
J2
D256
D258
D254
D252
Q252
D259
KP2311ETR-G
:
D502,503
KV1430STL-G
HVC383B-E
D504
D506
:
:
D55,261
S2V60
∗
A
AM01ZNF or
1SR154-400
D1F60-5063 or
UDZS4.7B or
MAZ4082N-L
1SS133
RN739F
B30-1567-05
KDS121-P or
DAN202U or
02DZ4.7F-Y
MAZ4062-L
MC2848
10EDA20
D76,402,403
D203,259,260
D162,301-304
D401
D501
D81
:
:
:
:
:
:
D72,74,75,251-253,255-258
D73,77,254
D57
D71
:
:
:
:
KTA2014P(Y,GR) or
2SA1063A
RT1P241M
RT1P144M
KRA307-P or
2SA1576A or
DTA124EUA or
KRA303-P or
DTC143TUA or
UDZS6.8B or
IMSA-6801-E
02DZ6.8F-Y
MAZ4068N-M
RT1N430M
HN3G01J(BL)-F
1SS355
KRC410-P or
D52,54,305,306
D53
Q501
D3
:
:
:
:
:
Q252
Q330
Q351,352
:
:
:
D76
Q74
Q51
Q52
D55
Q53
D54
∗
D81
D73
D77
BR24L04FV-W
2SD1858
2SB1565(E,F)
DTA114YUA or
2SC4081
UMC2N
S-80836CNNB-G
:
IC8
Q71,74
Q51-53,155
Q72
Q73
Q151
IC10
IC11
IC15
:
:
:
:
:
E-TDA7516
BA00CCWT
:
:
:
IC4
IC3
IC6
IC7
IC1
BD4912-V4
TC7W02FU-F
E-TDA7479AD
:
:
:
:
∗
:
∗
Q72
D71
Q73
Q71
J1
D52
D261
D53
SERGE
DET
DET
ACC
D255
D253
D251
D257
MUTE
LINE
∗
D72
BU DET
D305
D304
D302
D306
D303
D301
D57
GND LINE
SIGNAL LINE
B LINE
(X34- )
∗
D74
D75
∗
B
∗
B
∗
D
∗
E
POWER IC
Lch
SW
PRE
MUTE
SW
Rch
MUTE
PRE
Q351,352
MUTE DRIVER
IC3
SW
CONTROL
SERVO +B
SW
CONTROL
SERVO +B
AVR
POWER
SUPPLY
IC4
SW
STBY
PRF21BE471QB2
TH1 :
∗
R256
R336
30K
30K
C331
10u16
R331
270
TP338
TP340
TP339
MUTE
1
GND
FL
VDD
4
3
2
FR
5
R339
100 R335
∗
C333
∗
C334
R305 4.7K
TP306
TP305
TP304
TP301
10u16
C332
R332
270
R304 4.7K
R303 100
TP303
TP302
R338
100
TP307
Lch
12
R309 4.7K
R307 4.7K
C303
47u10
4.7
R308 4.7K
C302
0.47
10
CON
REQ M
GND
B.
U
.
Rch
A GND
4
8
0.47
R310 100
C301
10
R311 100
D
ATA
S
RST
D
ATA
M
CLK
REQ S
MUTE
11
10
2
3
6
7
1
5
13
9
TP308
TP310
TP309
TP312
TP311
∗
W252
TP313
∗
W251
C3 0.22u50
R252
47K
10K
R273
470K
R272
R271
100
C256
1u50
∗
C255
∗
R251
C258 1u50
C4 0.22u50
C6 0.22u50
C5 0.22u50
∗
R255
12
11
OFFDET
OUT1+
OUT2+
OUT2-
OUT1-
FR-
FL-
FL+
FR+
6
4
2
10
8
9
5
3
1
7
T
AB1
PWGND1
PWGND2
STBY
VCC1
OUT4+
OUT3-
OUT4-
SGND
OUT3+
24
RL+
RL-
RR+
18
16
14
IN3
IN1
22
20
RR-
26
HSD
23
21
19
17
15
13
SVR
IN2
IN4
VCC2
PWGND3
A
CGND
27
25
T
AB2
PWGND4
MUTE
R138
4.7
R140
4.7
R141
2.2
R139
4.7
R136
4.7
R137
4.7
R135
4.7
R133
4.7
R131
4.7
R130
4.7
∗
R81
10K
C82 0.022
R76 10K
R75 10K
R78 10K
R77 10K
TP26
TP25
TP30
TP27
TP31
TP28
4
.7uH
3
TP420
R53
100K
0.01
R57 22K
R55
10K
R54
20K
C55
R60
10K
0.01
∗
C81
0.01
∗
R82
R61
22K
∗
R83
R73 4.7K
∗
R72 4.7K
VDD
C79 22u10
C78 100u25
C80 100u25
C74 0.1
C76 0.1
C75 0.1
C77 0.1
L3
22uH
R87 1
R86 1
R85 1
R88 1
12
11
10
SEL2
SEL1
VCC2
47u16
TP73
TP72
∗
C73
0.1
∗
R89
1
C72
0.1
C52
1000P
R90
1
W420
GND
TP74
AM
AUDIO
SW5V
VCC1
9
8
7
6
P.CON
P.ANT
ILM
5
4
3
2
TP71
1
C69 0.47
C71
R21
1.5K
TH1
R253
4.3K
R254 10
TP316
∗
R257
R52
39K
∗
W368
C257
1u50
R51
68K
C54
R58 3.3K
1/2W
R59
33K
TP315
PHONE
FR
ONT L+
FR
ONT L-
FR
ONT R-
FR
ONT R+
REAR R+
REAR L+
REAR L-
REAR R-
P-CON
RL-
FR-
RL+
FL+
FL-
FR+
RR+
RR-
11
9
10
8
6
7
14
12
13
P-ANT
5
3
4
L51
140uH
FUSE
F1 10A (F52-0006-05)
15
16
GND
2
AC
C
1
B.
U
.
C51
TP10
TP16
TP9
41
39
38
40
42
10K
R56
1000P
C53
RL
FR
FL
RR
∗
W346
3
29
15
27
24
23
G
R
L
22
17
18
16
2
66
R301
R302
R306
SW5V
+5V
+8V
SERVO+B
FL+B
+5V
680P
680P
TP344
TP343
TP342
TP341
3300u16
TP15
TP12
TP13
TP14
TP6
TP7
TP8
TP11
TP2
TP3
TP4
TP5
TP1
RL
RR
FL
FR
7
36
35
2
P-ANT
P-CON
PHONE
AC
C
P-ANT
P-CON
PHONE
+5V
SW5V
43
+5V
∗
W51
ACC
BU
BU
Q351
Q352
Q74
+
+
+
+
+
+
+
+
+
+
+
+
KDC-W4031/W4031Y/W409/W409Y/W431GY/W4531/W4531Y/WF431A (1/2)
UMC2N
DAN202U
DA204U
DTA114YUA
TC7SH08FU
