Kenwood KDC-W4044UA Service Manual page 30

K
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
3
1
6
3
R966
TP905 TP907
100
SC
TP906 TP904
R965
SD
100
IC951
5V
15
0V
0V
15
3.3V
IC53 5.0V
R IC
4 3
NC CE
0V
C65
2
3.3V
GND
3
0.01
5 1
VOUT VDD
3
C66
1
14
5V 5V
0V 0V
R616
47K
R617
100K
3.3V 3.3V
0V 0V 17
R203 10K TP412 9
TP252
R255 C202
5V
100 18P
0V
C203
22P
10.000MHz
RESET IC
IC8 17
3 2
NC VDD
18
5.0V
4 1
10
VSS OUT
0V
5.0V
C204
0.1
26
5 5
10
10
17
8
16
30
X34-623x-xx (3/4)
L
R802
6
MUTE
33K
CONTROL
1
Q105
0V
IC6
D110
MUTE
Q104
17
POWER IC
MUTE
1
CONTROL
R809
1K W801
24
BU5V
3
5.0V
100
1
1 LX DATA M
2
2 LX CLK
0V or 5.0V
3
NC
4
NC
5
NC
6
REMO
7
NC
0V 8
BYTE
0V
CNVSS
10
XCIN
X2
32.768kHz
R204
11
XCOUT
10K
5V
12
RESET 0V
X1
13
XOUT
0V 14
VSS
15
XIN
16
VCC1
5.0V
R206 47K
17
NMI
5V
R207 47K
18
PANEL DET 0V
19
NC
20
NC 0V
R208 47K 21
ROMCOR DET
22
TP413
NC
23
5V
NC
0V 24
PON FL
25
5V
NC
0V 26
PON PANEL
5V
27
0V
NC
28
R209
NC
470
29
SCL AUD SCL
R210
30
SDA AUD SDA
470
10
17
13
16
M
BU
1
6.9V 6.8V
5V
0V
6.9V 6.8V 6.9V
1
18
17
3
19
20
C69
0.1
ACC DET
5V
BU DET
0V
MUTE
5V
PWIC MUTE
5V
0V
0V
PWIC STBY
LX REQ S
RDS CLK
PWIC SVR
LX REQ M
LX MUTE
5V
0V
LX CON
LX RST
3.3V
0V AUD DC ERR
TUN IFC OUT
5V
IC1
0V
TUN SMETER
SYSTEM
4V
u-COM
0V RDS NOISE
VSS
VCC2
5V
0V
5V
S SYS REQ
0V
SOC S STOP
5V
5V
0V 5V
0V SOC RST
0V
S SOC REQ
5V
0V CD MUTE
RDS QUAL
RDS
DATA
5V
10
0V
13
8
N
BU
TP316
R806
C809 5.6K TH1
1
5V
0V
18
R810 R811
1K 47K
5V
0V
18
17
77
3
19
BU5V
19
17
5V
0V
20 3
80
80
R218
79
79
22K
78
78
77
77
76
R619
76
100K
75
74
73
75 3
72
72
FL+B
71
71
R618
70
70 100K
69
69
68 TP414
68
67
67
19
C205 1000P
R223 2.2K
66
66
R512 2.2K
65
65
TP502
64
0V
63
NC
24
62 5.0V
8
R271 47K
61
NC
60
R270 47K
NC
59
NC
R269
58
NC
47K
R267 100
57
57
R266 100
56
56
R265 100
55
55
54
54
R264 100
53
53
52
52
TP404
51
51
19
17
8
19
16
KDC-W4044UA/W4044UAY/W4044U
O
DC IN
J1
9 10 11 12
8 7 6 5
18
J
BU
Q12
Q11
14V SW
R120 R1
100K 47
C17 C1
0.1 0
Q2 Q2
Q3
D2
SERVO
D1
+B AVR
C2
22u16
+
SRV+B
CONTROL SW
for SERVO+B
20
BU5V
5V
0V
87
5.1V
IC51
TP54 6
R54
PG R
100K
7
R53
BIAS V
33K 1.3V 8
FB S
C56 R55
1.0V 9
VC BOO
10
330P 20K
RT
R57
0.9V
FREQ
Q53
56K
CONT
USB
SW
+5V
for
IC51
R15
7.5
1/2W
3.3V
0V
3.3V
0V
77
5.1V
USB5V
16
SW5V
C
f
C70
1000
16