21
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
E
D
C
B
A
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW)
(FOIL SIDE VIEW)
Refer to the sche-
matic diagram for
the values of resis-
tors and capacitors.
X16-647x-xx
Ref. No. Address
IC1
4D
X16-647x-xx
Ref. No. Address
IC2
3A
SWITCH UNIT
X16-647x-xx (J76-0551-02)
12
1
22
70
RESET
1
EJECT
2
3
4
5
6
AM-
VCC
FM+
SCAN
DISP
SRC
C43
C44
C42
C41
C46
C45
C37
C31
C32
C33
C34
C35
C36
C38
C39
KS1
KS2
AUX
USB
KS3
KS4
KI1
AUD VOL
KI2
KI3
KI4
KI5
GND
VOUT
D17
D13
D14
D12
D11
D16
ED1
J2
D8
J3
D2
D5
D15
D9
D1
D3
D4
D6
D7
D21
S1
IC2
SWITCH UNIT
X16-647x-xx (J76-0551-02)
1
RST
1
40
GUARD
R37
R104
R103
C103
R36
R15
FL+B
R34
LED+B
ESD-GND
C11
C51
C52
R11
ILL-D-GND
TDF-DET
F-
C61 C62
CP12
R1
R2
R3
R4
R5
R6
R7
R8
R12
R13
R14
R23
PAN5V
USB+5V
USB-D+
USB-GND
USB-D-
REMO
SW+5V
AUX-GND
KS1
KS2
KS3
KS4
KI1
KI2
KI3
KI4
KI5
F+
AUX-R
AUX-L
USB-D- USB-D-
C12
R31
R32
R41
R33
R35
C21
R21
R22
R62
C101
C102
CP11
R61
R101
R102
22
4
23
20
21
80
61
60
41
D79
D71
D72
D73
D74
D75
D76
D77
D78
J1
D102
D101
IC1